ES2244032T3 - USE OF A CRYSTAL GROWTH INHIBITOR TO REDUCE THE ABRASION OF FABRICS. - Google Patents

Abstract

There is provided the use of a crystal growth inhibitor for reducing the fabric abrasion occurring upon laundering treatment.

Description

Use of a crystal growth inhibitor to reduce tissue abrasion.

Technical Field of the Invention

The present invention relates to the use of a crystal growth inhibitor to reduce the abrasion of tissues during the domestic wash treatment.

Background of the invention

The appearance of the tissues, p. eg clothes, clothes of Bed, household fabrics, such as table linen is one of the areas of Consumer concern Indeed, among the uses of typical consumer fabrics, such as use, washing, rinsing and / or dryer drying of tissues, loss of tissue appearance It has now been discovered that this loss is at least partially due to the abrasion of the fibers of the tissues during washing treatments. This problem of the tissue abrasion is even more acute after multiple cycles washing

The resolution of this problem has been achieved in the art at least by two modes, or (i) remedying the abrasion of the tissue that has already been produced or (ii) avoiding the Tissue abrasion problem.

A solution to solve the problem by option (i) is provided in the patent US 3,894,318 whereby the abrasion problem of the tissue, which in turn produces an effect of deposits on the tissue is reduced by further eroding the tissue.

On the other hand, a solution to solve this problem through option (ii) is treating the tissue with polymeric substances that are deposited on the tissue and thus protecting the fibers from abrasion. A typical example is you can find in US patent 4985040 which provides first place the deposition of a resin of polyamide-epichlorohydrin and then a polyurethane.

Application EP 506 246 (Rohm And Haas, published September 30, 1992) describes processes for preparation of polymers and copolymers of itaconic acid. The D1 document also mentions that these polymers are suitable for control of crystalline growth during a wash cycle and that these Polymers transmit an abrasion resistance to the tissue.

Application EP 753 565 (P&G, published on 15 January 1997) describes detergent compositions comprising a cationic ester type surfactant together with a component acid type crystal growth inhibitor organ-diphosphonic.

Application WO 95/29980 (P&G, published on 9 November 1995) describes conditioning compositions of fabrics comprising (a) one or more fabric softeners cationic, non-ionic softeners, or mixtures thereof; (b) cellulose; and (c) an effective amount of an antioxidant material free radical scavenger, a chelator, and mixtures of same.

Application WO 96/26999 (P&G, published on 6 September 1996) describes the use of a liquid composition comprising a peroxy bleaching agent and a compound copper and / or iron and / or manganese chelator, for pretreatment of a stained fabric before washing the fabric.

US-5,726,280 (Bayer, published on March 10, 1998) describes the water treatment and detergent compositions comprising a polymer containing repetitive aspartyl units of specific structure. D5 also mention the acid 2-phosphono-butane-1,2,4-tricarboxylic As an antioxidant agent.

Despite the advances made in the technique represented by the previous examples, there is still a need for solutions that provide a reduction in effective tissue abrasion.

It has now been discovered that the use of a crystal growth inhibitor (CGI), in particular a lime crystal growth inhibitor, satisfies said need.

The expression "abrasion reduction of effective tissues ", refers to the tissues treated with the crystal growth inhibitor present a better appearance due to less tissue abrasion compared to untreated washed fabrics.

Crystal growth inhibitors, in particularly those of the organic diphosphonic acid type have long since time that are known in the art of detergents for reduce the accumulation of lime in different parts of a washing machine (e.g., heat resistance). A typical example can be found in application WO 97/05226 in which the inhibitor of Crystal growth improves the problem of white deposits caused by carbonate salts. Its use as an agent to reduce tissue abrasion has not been described.

The expression "growth inhibitor crystalline, "refers to a compound that reduces the speed of formation of inorganic microcrystals, by which the size and / or quantity of said microcrystals on the surface of the tissue.

It is therefore an advantage of the invention provide the use of a crystal growth inhibitor to reduce tissue abrasion, in particular tissue abrasion that occurs during the domestic washing process.

Summary of the invention

The present invention relates to the use of a crystal growth inhibitor to reduce abrasion of the tissue, in particular the abrasion of the tissue that occurs during the process of washing domestic fabrics, as defined in the claim 1.

Detailed description of the invention Crystal Growth Inhibitor

An inhibitor of crystalline growth is the essential component of the invention.

The right crystal growth inhibitor of use in the present invention can be defined by the following test procedure, the so-called measurement test of Crystal growth inhibition.

Growth inhibition measurement test crystalline.

The ability of a compound to inhibit crystalline growth is determined by evaluating the in vitro impact on the growth rate of inorganic micro crystals. To this end, a system developed by GH Nancollas in 1964, described "Calcium Phosphate Nucleation and Growth in solution." Prog. Crystal Growth Charact . 3, 77-102 (1980) by Nancollas, G. H and Koutsoukos, PG. This system consists of measuring the growth rate of calcium phosphate crystals seeded with hydroxyapatite ([Ca 5 (PO 4) 3 OH] or PAH) in the presence of CaCl 2 and NaH_ { 2} PO_ {4}. The growth of calcium phosphate releases protons that can be titrated volumetrically with a strong base. The amount of base required to maintain the constant pH during crystalline growth allows those skilled in the art to measure the crystalline growth rate directly as well as determine the effects of potential inhibitors on the crystalline growth rate. A typical representation of an experiment of this type is given below:

one

The observed t-lag value defines the effectiveness of a compound to inhibit the growth of calcium phosphate crystals; in which the higher the t-lag, the better is the growth inhibitor crystalline.

To build a graph like the one mentioned experimentally you can use the following process:

Add 350 ml of distilled water (distilled two times), 35 ml of 2.1 M KCl, 50 ml of 0.0175 M CaCl2 and 50 ml of 0.01 M KH 2 PO 4 in a reaction vessel. Enter a glass pH electrode and a calomel reference electrode in an automatic volumetric titrator. Bubble nitrogen gas and stabilize the temperature of the reaction mixture to 37 ° C. When the temperature and pH have stabilized, add the inhibitor of the candidate crystalline growth in the concentration to be analyzed (eg 1.10-6 M). Titrate volumetrically to pH 7.4 with KOH 0.05 M. Then sow the reaction mixture with 5 ml of aqueous hydroxyapatite suspension [Ca 5 {(PO 4) OH].

The aqueous hydroxyapatite suspension is prepared as follows:

100 gr of hydroxyapatite powder is dispersed Bio-Gel® HTP in 1 l of distilled water. The pH of the resulting aqueous suspension is reduced to 2.5 by adding drop to 6N HCl drop. It is then heated to the boiling point. and is refluxed by shaking for seven days in a flask of 2 l round bottom connected to a condenser. After cooling up to room temperature, the pH is adjusted to 12.0 by adding 50% NaOH dropwise and the aqueous suspension is refluxed for another seven hours as before. The aqueous suspension is left stand for two days and the supernatant is suctioned. The flask is refill with 1.5 l of distilled water, stir vigorously and let stand for two days. A total of seven are made clarified as described above. The pH is adjusted to 7.0 by adding 2N HCl dropwise while stirring vigorously. The resulting aqueous suspension is kept at 37 ° C for eleven months

The graph shown above is obtained recording the amount of base added over time to maintain the pH of the reaction medium. The T-lag for a particular crystal growth inhibitor is determined graphically as described in the previous figure.

Crystal growth inhibitors for use for the purpose of this invention have a t-lag of at least 10 minutes at a concentration of 1.10-6 M, preferably at least 20 minutes, with maximum Preference at least 50 minutes.

Another suitable method to determine ownership of crystal growth inhibition of the selected component which is comparable to the T-lag method is the visual score The method consists of the following:

A multi-cycle laundry test is performed for several (eg 10) repeated washing and drying cycles in dryer. The conditions used are representative of the desired geographical region (eg domestic washing machine used, detergent used, use of the rinse product added, hardness of water, washed clothing items, etc.). At least they are done in parallel two series of the test, including the composition of the invention and a separate reference series. After having performed the required number of wash cycles, the garments of clothing (clothing items) are compared by expert evaluators in controlled light conditions. The visual score is a better / worse comparison of the crystalline residue visible on the surface of the test garments, comparing the series test with the reference series. Cotton items dark colored fabrics are the most suitable for this comparison.

In addition, growth inhibitors crystalline, they differ from each other from chelating agents by their low binding affinity for copper defined by its Log K, that is, Log K ML / M.L Log K at 25 C, ionic strength 0.1, of the inhibitor of Crystal growth is less than 15, preferably less than 12.

Crystal growth inhibitors use in the present invention are selected from carboxylic compounds, organic monophosphonic acids, organic diphosphonic acids and mixtures thereof.

Carboxylic compounds

Typical carboxylic compounds for use in the present invention are the carboxylic compounds selected from glycolic acid, phytic acid, monomeric polycarboxylic acids, homopolymeric or copolymeric polycarboxylic acids or their salts in which the polycarboxylic acid comprises at least two carboxylic radicals separated from each other by no more than two atoms carbon

When used in salt form, they are preferred alkali metal salts, such as sodium, potassium and lithium, or alkanolammonium

Crystal Growth Inhibitors organic detergents suitable for the purposes of the present invention include, but are not limited to, a wide variety of polycarboxylate compounds. In this document the term "polycarboxylate" refers to compounds that have several carboxylate groups, preferably at least 3 carboxylates. The crystalline growth inhibitors of polycarboxylate type se they can generally add to the composition in acid form, but They can also be added in the form of neutralized salt. When used in salt form, alkali metal salts are preferred, such as sodium, potassium and lithium, or alkanolammonium.

Among crystalline growth inhibitors A variety of categories of polycarboxylate are included Useful materials An important category of inhibitor of crystalline growth of polycarboxylate type encompasses the ether polycarboxylates, including oxidisuccinate, as described in the US Patent 3,128,287 and US Patent 3,635,830. See also crystal growth inhibitors "TMS / TDS" of US Patent 4,663,071. Ether polycarboxylates Suitable also include cyclic compounds, especially those alicyclic compounds, such as those described in the patents US 3,923,679; 3,835,163; 4,158,635; 4,120,874 and 4,102,903.

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Other crystal growth inhibitors useful include ether hydroxypolycarboxylates, polymers of polyacrylate, copolymers of maleic anhydride with ethylene or vinyl methyl ether, or acrylic acid, 1,3,5-trihydroxy acid benzene-2,4,6-trisulfonic acid carboxymethyloxysuccinic, various alkali metals, salts of ammonium and ammonium substituted polyacetic acid, such as acid ethylenediamine tetraacetic acid and nitrilotriacetic acid, as well as polycarboxylates, such as melitic acid, succinic acid, acid oxidisuccinic, polyimaleic acid, acid benzene-1,3,5-tricarboxylic acid carboxymethyloxysuccinic and soluble salts thereof.

The molecular weight of these polymers and copolymers is preferably less than 100,000, with maximum preference between 500 and 50,000.

Commercial polymers, suitable for use in the present invention, which prevent the precipitation of the salts of the buffer component during dilution of the composition in water are the polyacrylate polymers sold under the trade name Good-Rite® by BF Goodrich, Acrysol® by Rohm & Haas, Sokalan® by BASF, Norasol® by Norso Haas. Polymers Preferred commercial are polyacrylate polymers, especially Acritalo Norasol® polymers and the most Preferred are the Norasol® 410N polyacrylate polymer (MW 10,000) and the polyacrylate polymer modified with aminophosphonic groups Norasol® 440N (MW 4,000) and its corresponding acidic form Norasol® QR 784 (PM 4000) of Norso-Haas.

Citrates, p. eg, citric acid and soluble salts thereof (especially sodium salt), are inhibitors of crystalline growth of polycarboxylate type suitable for use in the present invention.

They are also suitable in compositions that contain the 3,3-dicarboxy-4-oxa-1,6-hexanedionates and related compounds described in US Patent 4,566,984. Useful succinic acid crystal growth inhibitors include alkyl and alkenyl acids C5 {C} {C20} succinic and salts of same. A particularly preferred compound of this type is the dodecenylsuccinic acid. Specific examples of inhibitors of Crystalline growth of succinate type include: lauryl succinate, myristyl succinate, palmityl succinate, 2-dodecenylsuccinate (preferred), 2-pentadecenylsuccinate and the like. The lauryl succinates are crystal growth inhibitors preferred from this group and are described in the application EP-0,200,263.

Other suitable polycarboxylates are described in US Patent 4,144,226 and in the patent 3,308,067. See also the patent 3,723,322.

Organ-monophosphonic acid

The organ-monophosphonic acid or one of its salts or complexes is also suitable for use in the present invention as a crystalline growth inhibitor.

By organ-monophosphonic acid it understood in the present invention an acid monophosphonic organ that does not contain nitrogen in its chemical structure Therefore, this definition excludes organ-amino phosphonates, which may, not However, be included in the compositions of the invention as heavy metal ion sequestrants.

The acid component monophosphonic organ may be present in your acidic form or in the form of one of its salts or complexes with a adequate counter-mission. Preferably, the salts or complexes are water soluble, with salts or complexes being particularly preferred of alkali metal and alkaline earth metal.

An organ-monophosphonic acid preferred is acid 2-phosphonobutane-1,2,4-tricarboxylic marketed by Bayer under the trade name Bayhibit.

Organ-diphosphonic acid

Organ diphosphonic acid or a of its salts or complexes are also suitable for use in the present invention as a crystalline growth inhibitor.

By organ-diphosphonic acid it understood herein as an acid diphosphonic organ that does not contain nitrogen as Part of its chemical structure. Therefore, this definition excludes organ-amino phosphonates, which may, not However, be included in the compositions of the invention as heavy metal ion sequestrants.

The acid component diphosphonic organ may be present in its form acid or in the form of one of its salts or complexes with a adequate counter-mission. Preferably, the salts or complexes are water soluble, with salts or complexes being particularly preferred of alkali metal and alkaline earth metal.

Organ diphosphonic acid is preferably a C 1 -C 4 diphosphonic acid and more preferably a C2 diphosphonic acid selected from ethylenediphosphonic acid, acid α-hydroxy-2 phenyl ethyl diphosphonic acid methylene diphosphonic acid vinylidene-1,1-diphosphonic acid 1,2-dihydroxyethane-1,1-diphosphonic and hydroxy-ethane-1,1 acid diphosphonic and any salt thereof and mixtures of same.

One more organ-diphosphonic acid preferred is acid hydroxy-ethane-1,1 diphosphonic (HEDP).

Between the classes of growth inhibitors lens described above, the preferred classes of use in the present invention are the classes of organic monophosphonic acids and / or organic diphosphonic acids.

The crystal growth inhibitor can be use as an independent product including additives that add before or after washing. It can also be used in fully formulated compositions including compositions of laundry as well as fabric softener compositions added during rinsing and compositions added to the dryer (e.g. sheets) that provide softening and / or antistatic advantages, and compositions added for rinsing.

Incorporation levels of the inhibitor of crystal growth in the inhibitor compositions of Crystal growth are from 0.005% to less than 10%, preferably less than 1%, more preferably from 0.005% to 0.5%, with maximum preference of 0.05% to 0.25%, and most preferably 0.1% to 0.2% by weight of the composition.

The selection of typical components for use in said fully formulated compositions it is done depending on Its final use. For example, when formulated as a composition fabric softener, this will comprise a fabric softening compound.

Fabric softener compound

Typical levels of compound incorporation softener in the softener composition are 1% to 80% by weight, preferably from 5% to 75%, more preferably from 15% to 70%, and still more preferably from 19% to 65%, by weight of the composition.

The fabric softener compound is selected preferably of a cationic fabric softener component, not ionic, amphoteric or anionic. They are typical among the components cationic softeners quaternary ammonium compounds or amine precursors thereof as defined by continuation.

A) Ammonium-based fabric softener active compound quaternary (1) Fabric based fabric softening active compounds Preferred quaternary ammonium have the following formula

2

wave formula:

3

where Q is a carbonyl unit from formula:

\uelm{C}{\uelm{\dpara}{O}}

---, \hskip0,5cm ---

\uelm{C}{\uelm{\dpara}{O}}

--- O ---, \hskip0,5cm --- O ---

\uelm{C}{\uelm{\dpara}{O}}

--- O ---, \hskip0,5cm ---

\uelm{N}{\uelm{\para}{R ^{2} }}

---

\uelm{C}{\uelm{\dpara}{O}}

---, \hskip0,5cm ---

\uelm{C}{\uelm{\dpara}{O}}

---

\uelm{N}{\uelm{\para}{R ^{2} }}

------ OR ---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

---, \ hskip0,5cm ---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

--- O ---, \ hskip0,5cm --- O ---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

--- O ---, \ hskip0,5cm ---

 \ uelm {N} {\ uelm {\ para} {R2}} 

---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

---, \ hskip0,5cm ---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

---

 \ uelm {N} {\ uelm {\ para} {R2}} 

---

each unit R is, independently of each other, hydrogen, alkyl C 1 -C 6, hydroxyalkyl C 1 -C 6 and mixtures thereof, preferably methyl or hydroxyalkyl; each unit R1 is, independently of each other, alkyl C 11 -C 22 linear or branched, alkenyl C 11 -C 22 linear or branched and mixtures of the same, R2 is hydrogen, alkyl C 1 -C 4, hydroxyalkyl C 1 -C 4 and mixtures thereof; X is a anion compatible with the softener active substances of tissues and adjuvant ingredients; the index m is from 1 to 4, preferably 2, and the index n is from 1 to 4, preferably 2.

An example of active substance softener Preferred tissue is a mixture of quaternized amines of formula:

4

where R is preferably methyl; R1 is a linear or branched alkyl or a chain alkenyl comprising at least 11 atoms and preferably at minus 15 atoms In the previous example of fabric softener the unit -O 2 CR 1 represents an acyl unit of fatty acid which is typically obtained from a source of triglyceride The triglyceride source is preferably obtained at from tallow, partially hydrogenated tallow, lard, partially hydrogenated lard, vegetable oils and / or partially hydrogenated vegetable oils such as canola, safflower oil, peanut oil, sunflower oil, corn oil, soybean oil, coniferous oil, saved, etc. and mixtures of same.

Active substances fabric softeners Preferred in the present invention are the diester compounds and / or quaternary ammonium diamide (DEQA), having diesters and diamids the formula:

5

where R, R1, X and n are as defined hereinbefore for the formulas (1) and (2), and Q has the formula:

\uelm{C}{\uelm{\dpara}{O}}

--- \hskip0,5cm o \hskip0,5cm ---

\uelm{N}{\uelm{\para}{H}}

---

\uelm{C}{\uelm{\dpara}{O}}

--- .--- OR ---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

--- \ hskip0,5cm or \ hskip0,5cm ---

 \ uelm {N} {\ uelm {\ para} {H}} 

---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

---.

These active substances fabric softeners Preferred are obtained by reacting an amine with a unit fatty acid acyl to form an amine intermediate that It has the formula:

6

where R is preferably methyl, Q and R1 respond to the above definition of the present memory, and then by quaternization to obtain the active substance softener final.

Non-limiting examples of preferred amines used to obtain the softening active substances of DEQA fabrics according to the present invention include methyl bis (2-hydroxyethyl) amine from formula:

7

the methyl bis (2-hydroxypropyl) amine from formula:

8

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the methyl (3-aminopropyl) (2-hydroxyethyl) amine of formula:

9

the methyl bis (2-aminoethyl) amine from formula:

10

triethanolamine formula:

eleven

the di (2-aminoethyl) ethanolamine from formula:

12

The counterion X (-) above may be any anion compatible with softeners, preferably an anion of strong acid such as chloride, bromide, methylsulfate, ethyl sulfate, sulfate, nitrate and the like, more preferably chloride or methylsulfate. Although less preferable, the anion also it can have a double electric charge, in which case X (-)} It represents half a group.

Sebum and canola oil are useful sources and economic of fatty acid acyl units for proper use in the present invention as R1 units. Below are exposed non-limiting examples of quaternary ammonium compounds suitable for use in the compositions of the present invention. The term "seboil" hereinafter indicates that the unit R1 is derived from a source of tallow triglycerides and is a mixture of fatty acyl units. Similarly, the use of the term canolyl refers to a mixture of acyl units Fat derived from canola oil.

TABLE II Softening active substances of woven

Chloride N, N-di (seboyl-oxy-ethyl) -N, N-dimethyl ammonium;

Chloride N, N-di (canolyl-oxy-ethyl) -N, N-dimethyl ammonium;

Chloride N, N-di (seboyl-oxy-ethyl) -N-methyl, N- (2-hydroxyethyl) ammonium;

Chloride N, N-di (canolyl-oxy-ethyl) -N-methyl, N- (2-hydroxyethyl) ammonium;

Chloride N, N-di (2-seboyloxy-2-oxo-ethyl) -N, N-dimethyl ammonium;

Chloride N, N-di (2-canolyloxy-2-oxo-ethyl) -N, N-dimethyl ammonium;

Chloride N, N-di (2-seboyloxyethylcarbonyloxyethyl) -N, N-dimethyl ammonium;

Chloride N, N-di (2-canolyloxyethylcarbonyloxyethyl) -N, N-dimethyl ammonium;

Chloride N- (2-seboyloxy-2-ethyl) -N- (2-seboyloxy-2-oxo-ethyl) -N, N-dimethyl ammonium;

Chloride N- (2-canolyloxy-2-ethyl) -N- (2-canolyloxy-2-oxo-ethyl) -N, N-dimethyl ammonium;

Chloride N, N, N-tri (seboyl-oxy-ethyl) -N-methyl ammonium;

Chloride N, N, N-tricanolyl-oxy-ethyl) -N-methyl ammonium;

Chloride N- (2-seboyloxy-2-oxoethyl) -N- (seboyl) -N, N-dimethyl ammonium;

Chloride N- (2-canolyloxy-2-oxoethyl) -N- (canolyl) -N, N-dimethyl ammonium;

Chloride 1,2-diseboyloxy-3-N, N, N-trimethylammoniopropane; Y

Chloride 1,2-dicanolyloxy-3-N, N, N-trimethylammoniopropane;

and mixtures of the active substances previous.

Other examples of softening compounds of quaternary ammonium are methylsulfate methylbis (seboamidoethyl) (2-hydroxyethyl) ammonium and methylbis methylsulfate (seboamidoethyl hydrogenated) (2-hydroxyethyl) ammonium; these Materials are marketed by Witco Chemical Company with the trade names Varisoft® 222 and Varisoft® 110, respectively.

Especially preferred is the chloride of N, N-di (seboyl-oxy-ethyl) -N, N-dimethylammonium, where sebum chains are at least partially unsaturated

The degree of unsaturation of the sebum chain, Canola or other acyl fatty acid unit can be measured by iodine (IV) index of the corresponding fatty acid, which in the case which concerns us should preferably be in the range of 5 to 100, there are two categories of compounds, namely those that they have an IV less than 25 and those who have an IV greater than 25.

Indeed, for compounds of formula:

13

tallow fatty acid derivatives, when the iodine number is 5 to 25, preferably 15 to 20, it has been found that a higher cis / trans isomer weight ratio than about 30/70, preferably greater than about 50/50 and more preferably greater than about 70/30, provides a concentration ability optimal

For this type of acid-based compounds tallow fatty with an iodine index greater than 25 has been found that the ratio of cis / trans isomers is not so decisive, unless that very high concentrations are needed.

Other suitable examples of active substances Fabric softeners are derived from acyl groups of acids fatty in which the terms "seboil" and "canolil" in the previous examples are replaced by the terms "cocoyl, palmyl, lauryl, oleyl, ricinoleyl, stearyl, palmityl ", the which correspond to the source of triglycerides of which Acyl units derived from fatty acids. These sources fatty acid acyl alternatives may comprise chains fully saturated or, preferably, at least chains partially unsaturated

As described above herein. memory, the R units are preferably methyl, although fabric softener active substances described suitable in which the term "methyl" of the previous examples in Table II by units "ethyl, ethoxy, propyl, propoxy, isopropyl, butyl, isobutyl and t-butyl. "

The counterion X in the examples in Table II it can be suitably substituted by bromide, methylsulfate, formate, sulfate, nitrate and mixtures thereof. In fact, the X anion is present only as a counterion of the compounds of quaternary ammonium with positive charge. The scope of this The invention is not considered limited to a particular anion.

For ester type fabric softeners above, the pH of the compositions herein is a important parameter of the present invention. In effect, the pH influences the stability of the ammonium precursor compounds quaternary or amine, especially during storage dragged on.

The pH, as defined in the present context, It is measured in undiluted compositions at 20 ° C. Although you are compositions can be used at pH of less than about 6.0, for the optimal hydrolytic stability of these compositions, the undiluted pH, measured under the conditions above mentioned, should preferably be in the range of about 2.0 to about 5, preferably in the range of 2.5 to 4.5, preferably about 2.5 to approximately 3.5. The pH of these compositions herein invention can be regulated by the addition of an acid of Bronsted

Examples of suitable acids include acids inorganic minerals, carboxylic acids, especially low molecular weight carboxylic acids (C 1 -C 5), and alkylsulfonic acids. Suitable inorganic acids include HCl, H2SO4, HNO_ {3} and H_ {PO} {4}. Suitable organic acids include formic, acetic, citric, methylsulfonic and ethylsulfonic. Preferred acids are citric acids, hydrochloric, phosphoric, formic, methylsulfonic and acids benzoic

The use of polymers with amine functionality Ethoxylated in this context is especially beneficial. Indeed, as defined above, the compositions softeners are preferably used in pH ranges previously mentioned, that is, in acidic conditions. In said acidic conditions, polymers with amino functionality ethoxylated that have not been treated to remove aldehydes and / or Ketones present in the raw material will produce these by-products undesirable, thus producing malodor and discoloration. With the polymer With amino functionality of the invention, this does not happen, polymer is stable under acidic conditions and thus its smell and resulting color.

In this report, when the diester, this will include the monoester that is normally present in the making. For fabric softener, under laundry conditions with absence or little detergent drag, the percentage of monoester should be as low as possible, preferably not more than approximately 2.5% However, in high drag conditions of detergent, some monoesters are preferred. The relationships Totals between diester and monoester are approximately 100: 1 a about 2: 1, preferably about 50: 1 a about 5: 1, more preferably about 13: 1 at approximately 8: 1. Under conditions of high detergent drag, The di / monoester ratio is preferably about 11: 1. He level of monoester present can be controlled in the manufacture of softening compound.

Substance mixtures can also be prepared. active formulas (1) and (2).

2) Other possible softening compounds of Quaternary ammonium-based fabrics suitable for use herein invention are cationic nitrogen salts having two or more C 8 -C 22 aliphatic hydrocarbon groups long chain acyclics or one of said groups and a group arylalkyl, which can be used alone or as components of a mix and are selected from the group consisting of:

(i) acyclic quaternary ammonium salts of the formula:

100

where R 4 is a group acyclic C 8 -C 22 aliphatic hydrocarbon, R 5 is an alkyl or hydroxyalkyl group C 1 -C 4 saturated, R 8 is selected from group consisting of groups R 4 and R 5 and A- is an anion according to the definition previous;

(ii) alkoxylated diamino ammonium salts Quaternary formula:

14

where n is equal to 1 a about 5 and R 1, R 2, R 5 and A - are as Has defined previously;

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(iii) mixtures thereof.

Examples of cationic nitrogen salts of type indicated above are the known salts of dialkyldimethylammonium chloride disebo-dimethylammonium, methylsulfate disebo dimethylammonium chloride di (tallow-hydrogenated) dimethylammonium, distearyl dimethylammonium chloride, dibehenyl dimethylammonium. Chloride di (hydrogenated tallow) di methylammonium and chloride Disebodimethylammonium are preferred. Examples of salts of Commercial dialkylmethyl ammonium useful in the present invention are di (sebohydrogenated) dimethylammonium chloride (brand Registered Adogen® 442), chloride disebo-dimethylammonium (registered trademarks Adogen® 470, Praepagen® 3445) and distearyl dimethylammonium chloride (registered trademark Arosurf® TA-100), all of them marketed by Witco Chemical Company. Chloride dibehenildimethylammonium is marketed under the brand name Kemamina Q-2802C by Humco Chemical Division of Witco Chemical Corporation

Chloride dimethylstearyl benzyl ammonium is marketed with trade names Varisoft® SDC by Witco Chemical Company and Ammonyx® 490 by Onyx Chemical Company.

B) Softener active compound of type fabrics amine

Fabric softening compounds of type suitable amine for use in the present invention, which may be in amine form or cationic form, are selected from:

(i) - Fatty acid reaction products superiors with a polyamine selected from the group consisting of hydroxyalkyl alkylenediamines and dialkylenetriamines and mixtures thereof. These reaction products are mixtures of several compounds according to the multifunctional structure of the polyamines.

The preferred component (i) is a compound nitrogen selected from the group consisting of mixtures of reaction product or some components selected from the mixtures

A preferred component (i) is a compound selected from the group consisting of imidazoline compounds Substitutes that have the formula:

       \ vskip1.000000 \ baselineskip
    

fifteen

       \ vskip1.000000 \ baselineskip
    

where R 7 is a group acyclic C 15 -C 21 aliphatic hydrocarbon and R 8 is a C 1 -C 3 alkylene group divalent

The materials of component (i) are marketed under the names: Mazamide® 6, marketed by Mazer Chemicals, or Ceranine® HC, marketed by Sandoz Colors &Chemicals; Stearic hydroxyethyl imidazoline marketed with Alkazine® ST registered names by Alkaril Chemicals, Inc., or Schercozoline® S by Scher Chemicals, Inc .; N, N '' - disebo-alkyldiethylenetriamine; 1-seboamidoethyl-2-seboimidazoline (where in the preceding structure R 1 is a group C 15 -C 17 aliphatic hydrocarbon and R 8 it is a divalent ethylene group).

Some of the components (i) can also be disperse in a Bronsted acid dispersant adjuvant that has a pKa value not exceeding approximately 4; with the condition of that the pH of the final compositions is not greater than about 6. Some preferred dispersing adjuvants are hydrochloric acid, phosphoric acid or methylsulfonic acid.

Both the N, N '' - diseboalcoildietilentriamine as the 1-tallow (amidoethyl) -2-seboimidazoline are tallow fatty acid reaction products and diethylenetriamine and are precursors of fabric softener cationic methylsulfate methyl-1-seboamidoethyl-2-seboimidazolinium (see "Cationic Surface Active Agents as Fabric Softeners", R. R. Egan, Journal of the American Oil Chemicals' Society, January 1978, p. 118-121). The N, N '' - distilled allynylethylenetriamine and the 1-seboamidoethyl-2-seboimidazoline can be obtained from Witco Chemical Company as chemical substances Experimental He methyl-1-seboamidoethyl-2-seboimidazolinium Methylsulfate is marketed by Witco Chemical Company with the trade name Varisoft® 475.

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(ii) - Softener formula:

16

where each R2 is a group C 1-6 alkylene, preferably a group ethylene; and G is an oxygen atom or a group -NR-; and every R, R 1, R 2 and R 5 are as defined above and A <-> is as defined above for X <->.

An example of compound (ii) is the chloride of 1-oleylamidoethyl-2-oleylimidazolinium, wherein R 1 is an aliphatic hydrocarbon group C 15 -C 17 acyclic, R 2 is a group ethylene, G is an NH group, R 5 is a methyl group and A - is a chloride anion.

(iii) - Softener formula:

17

wherein R, R 1, R 2 and A <-> are as defined previously.

An example of compound (iii) is the compound that It has the formula:

18

where R 1 is a derivative of acid oleic

Useful additional fabric softening agents herein described in the patent US 4,661,269, granted to Toan Trinh, Errol H. Wahl, Donald M. Swartley and Ronald L. Hemingway on April 28, 1987, US 4,439,335, issued to Burns on 27 March 1984; and in US Patent 3,861,870, Edwards and Diehl; 4,308,151, Change; 3,886,075, Bernardino; 4,233,164, Davis; 4,401,578, Verbruggen; 3,974,076, Wiersema and Rieke; 4,237,016, Rudkin, Clint, and Young; and the request EP-472,178, of Yamamura et al., Incorporating all these documents as a reference herein.

Of course the term "active compound softener "may also cover mixtures of active compounds softeners

Between the classes of softening compounds described hereinbefore, the active fabric softener compound of diester or ammonium diamide Quaternary DEQA.

The composition of the invention may contain, in addition or alternatively to the components described earlier in the present invention, one or more of the following ingredients.

Optional ingredients (A) Liquid vehicle

An optional, but preferred, liquid vehicle is a liquid vehicle The liquid vehicle used in compositions of the invention is preferably at least mainly water, due to its low cost, its availability relative, its safety and its compatibility with the environment. He water level in the liquid vehicle is preferably at least about 50%, most preferably at least 60%, by weight vehicle. As a liquid vehicle, mixtures of water and organic solvent of low molecular weight, e.g. e.g., < about 200, organic solvent, e.g. eg alcohols lower as ethanol, propanol, isopropanol or butanol. The low molecular weight alcohols include monohydric alcohol, dihydric alcohol (glycol, etc.), trihydric alcohol (glycerol, etc.) and higher polyhydric alcohols (polyols).

(B) Additional solvents

The compositions of the present invention may comprise one or more solvents that provide greater ease of formulation These easily formulated solvents are all of them are described in the application WO 97/03169. This is especially the case when softening compositions are formulated of liquid, transparent fabrics. When used, these easily formulated solvents preferably comprise less than about 40%, preferably about 10% at about 35%, more preferably about 12% at about 25%, and even more preferably about 14% to about 20%, by weight of the composition. Solvent Easy formulation is selected to minimize the impact of odor of solvent in the composition and to provide a low viscosity to the final composition. For example alcohol Isopropyl is not very effective and has a strong smell. The alcohol n-P propyl is more effective, but also has a different smell Several butyl alcohols also have odors but can be used to achieve transparency / stability effective, especially when used as part of the system to facilitate formulation to minimize odor. Alcohols they are also selected for low temperature stability optimal, that is they are capable of forming compositions that are liquids with acceptable and translucent low viscosities, preferably transparent, up to temperatures of at approximately 4.4 ° C (approximately 40 ° F) and are capable of Recover after storage at approximately 6.7 ° C (approximately minus 20ºF).

The suitability of any easy solvent formulation for the formulation of the softener compositions of tissues, liquid, concentrated, preferably transparent from The present invention with the stability requirement is surprisingly selective. Suitable solvents can be select based on its distribution coefficient (P) octanol / water (P) as defined in WO application 03/97169.

Easily formulated solvents in the present invention are selected from those that have a ClogP of about 0.15 to about 0.64, preferably of about 0.25 to about 0.62, and more preferably from about 0.40 to about 0.60, being said solvent of easy formulation at least somewhat asymmetric, and with preferably a melting or solidification point that allows either liquid at room temperature or at a temperature close to is. Solvents that have a low molecular weight and that are Biodegradable are also desirable for some purposes. The more asymmetric solvents seem to be very desirable while very symmetrical solvents like 1,7-heptanediol or 1,4-bis (hydroxymethyl) cyclohexane, which they have a symmetry center, they seem to be unable to provide essentially transparent compositions when used alone, even if its ClogP values are within the range favorite.

Easily formulated solvents more preferred can be identified by the appearance of the vesicles of the softener, using a cryogenic electron microscope, of the compositions that have been diluted to the concentration used in the rinse. These diluted compositions seem to have dispersions of fabric softener that looks more mono-lamella that softener compositions of conventional fabric. The closer you get to an aspect mono-lamella, better seem to work compositions These compositions provide surprisingly a good fabric softening action compared to similar compositions prepared in the conventional manner with the same active substance fabric softener.

Easy formulation solvents that can be use are described and listed below and they have ClogP values that fall within the required range. These include mono-oles, C6 diols, C7 diols, isomers octanediol, butanediol derivatives, isomers of trimethylpentanediol, isomers of ethylmethylpentanediol, isomers of propylpentanediol, dimethylhexanediol isomers, isomers of ethylhexanediol, isomers of methylheptanediol, isomers of octanediol, nonanodiol isomers, alkyl glyceryl ethers, di (hydroxy alkyl) ethers and aryl glyceryl ethers, glyceryl aromatic ethers, alicyclic diols and derivatives, derivatives C 3 C 7 alkoxylated diol, aromatic diols and diols unsaturated Easily formulated solvents especially Preferred include hexanediols such as 1,2-hexanediol Y 2-ethyl-1,3-hexanediol and pentanediols as 2,2,4-Trimethyl-1,3-pentanediol.

(C) Dispersibility improvers

Relative compositions can be prepared concentrates containing quaternary ammonium diester compounds both saturated and unsaturated that are stable without the need for add concentration improvers. However, the compositions of the present invention may need improvers of organic and / or inorganic concentration to reach even higher concentrations and / or to meet standards of higher stability depending on the rest of the ingredients. These concentration improvers, which can be in shape Typical viscosity modifiers, may be necessary or preferred to ensure stability in extreme conditions when certain concentrations of active substance are used softener. The surfactant concentration improvers are typically select from the group consisting of (1) long alkyl chain cationic surfactants; (2) nonionic surfactants; (3) amine oxides; (4) fatty acids; Y (5) mixtures thereof. These improvers are described in the application WO-94/20597, specifically from the page 14, line 12 to page 20, line 12, incorporated herein Memory as reference.

When said dispersibility enhancers are present, the total concentration is 2% to 25%, preferably from 3% to 17%, more preferably from 4% to 15% and still more preferably from 5% to 13%, by weight of the composition. These materials can be added as part of the raw material of active softener, (I), p. eg, the cationic chain surfactant long alkyl and / or fatty acid, which are reactive used to obtain the active substance biodegradable softener for tissues as set forth hereinbefore, or they can be added as a separate component. Concentration Total dispersibility improver includes any quantity that may be present as part of component (I).

Agents of control of the inorganic viscosity / dispersibility that can act as concentration enhancers or increase the effect of these, include water-soluble ionizable salts, which can be incorporated optionally in the compositions of the present invention. May a wide range of ionizable salts be used. Examples of salts suitable are the metal halides of groups IA and IIA of the Periodic Table of Elements, p. eg, calcium chloride, magnesium, sodium chloride, potassium bromide or lithium chloride. Ionizable salts are especially useful during the process of mixing the ingredients to prepare the compositions of the present invention and later to obtain the desired viscosity. The amount of ionizable salts used depends on the amount of active ingredients used in the compositions, being able to adjust this according to the wishes of the formulator. Typical levels of salts used to control the viscosity of the composition are from about 20 to about 20,000 parts per million (ppm), preferably from about 20 to about 11,000 ppm, by weight of the composition.

Poly (alkylene ammonium) salts can incorporated into the composition to control viscosity in addition of the above water-soluble ionizable salts or in substitution hers. In addition, these agents can act as eliminators forming ion pairs with washed anionic detergent main, of the rinse or that is on the tissues, thus improving the softness. These agents can stabilize the viscosity over a wider temperature range, especially at low temperatures, than inorganic electrolytes.

Specific examples of salts of poly (alkylene ammonium) include monohydrochloride l-lysine and dihydrochloride 1,5-diamonium-2-methylpentane.

(D) Dye fixing agent

The composition of the invention may comprise optionally a dye fixing agent. Fixing Agents of dye or "fixatives" are commercial materials, well known which are designed to improve the appearance of dry tissues minimizing tissue dye loss due to washing. In this definition are not included the components that are fabric softeners or those described above in the present invention as polymers with amino functionality.

Many dye fixing agents are cationic and are based on different quaternized nitrogen compounds or well charged cationically in another way. Cationic fixers se they can acquire with several trade names of several suppliers. Representative examples include: CROSCOLOR PMF (July 1981, Code No. 7894) and CROSCOLOR NOFF (January 1988, No. code 8544) of Crosfield; INDOSOL E-50 (27 of February 1984, Ref. 6008.35.84; based on polyethyleneamine) from Sandoz; SANDOFIX TPS, which is also marketed by Sandoz and is a preferred polycationic fixer for use herein. invention and SANDOFIX SWE (cationic resinous compound), REWIN SRF, REWIN SRF-O and REWIN DWR of CHT-Beitlich GMBH, Tinofix® ECO, Tinofix® FRD and Solfin® marketed by Ciba-Geigy.

Other cationic dye fixing agents are described in "Aftertreatments for improving the fastness of dyes on textile fibers "by Christopher C. Cook (REV. PROG. COLORATION Vol. 12, 1982). Dye fixing agents suitable for use in the The present invention are ammonium compounds such as condensates of fatty acid - diamine p. ex. hydrochloride, acetate, methosulfate and Oxyldiethyl aminoethylamide benzyl hydrochloride, Oleylmethyl-diethylene diamine, methosulfate monostearyl-ethylene diaminotrimethylammonium and oxidized tertiary amines products; alkyldiamine derivatives polymeric, polyamine chloride condensates cyanuric and glycerol aminated dichlorohydrins.

A typical amount of the dye fixing agent to be used in the composition of the invention is preferably up to 90% by weight, preferably up to 50% by weight, more preferably from 0.001% to 10% by weight, most preferably 0.5% to 5% active substance by weight of the composition.

(E) Stabilizers

In the compositions of the present invention There may be stabilizers. The term "stabilizer" in the This report includes antioxidants and reducers. These agents they are present at a level of 0% to approximately 2%, preferably from about 0.01% to about 0.2%, more preferably from about 0.035% to about 0.1% for antioxidants, and more preferably about 0.01% to about 0.2% for reducing agents. These guarantee good odor stability in the conditions of long-term preservation for compositions and compounds stored in the molten form. The use of antioxidants and reducing agent stabilizers is especially critical for low aroma products (low perfume).

Examples of antioxidants that may be added to the compositions of this invention include a mixture of ascorbic acid, ascorbic palmitate, propyl gallate, marketed by Eastman Chemical Products, Inc., under the trade names Tenox® PG and Tenox S-1; a mixture of BHT (butylated hydroxytoluene), BHA (butylated hydroxyanisole), propyl gallate and citric acid, sold by Eastman Chemical Products, Inc., under the trade name Tenox-6; butylated hydroxytoluene, marketed by UOP Process Division under the trade name
Sustane® BHT; tertiary butylhydroquinone, Eastman Chemical Products, Inc., as Tenox TBHQ; natural tocopherols, Eastman Chemical Products, Inc., such as Tenox GT-1 / GT-2; and butylated hydroxyanisole, Eastman Chemical Products, Inc., as BHA; long chain (C 8 -C 22) esters of gallic acid, e.g. eg, dodecyl gallate; Irganox® 1010; Irganox® 1035; Irganox® B 1171; Irganox® 1425; Irganox® 3114; Irganox® 3125; and mixtures thereof; preferably Irganox® 3125, Irganox® 1425, Irganox® 3114, and mixtures thereof; more preferably Irganox® 3125 alone. The following Table II lists the chemical names and CAS numbers of some of the above stabilizers.

TABLE II

Antioxidant CAS Do not. Chemical name used in the Federal Code Regulations Irganox® 1010 6683-19-8 Tetrakis (methylene (3,5-di-tert-butyl-4 hydroxyhydrocinamate)) methane Irganox® 1035 41484-35-9 Tiodietilen bis (3,5-di-tert-butyl-4-hydroxyhydrocinamate Irganox® 1098 23128-74-7 N, N'-Hexametilen bis (3,5-di-tert-butyl-4-hydroxyhydrocinamamide Irganox® B 1171 31570-04-4 23128-74-7 1: 1 Mixture of Irganox® 1098 and Irgafos® 168 Irganox® 1425 65140-91-2 Bis (monoethyl (3,5-di-tert-butyl-4-hydroxybenzyl) phosphonate) calcic Irganox® 3114 65140-91-2 Bis (monoethyl (3,5-di-tert-butyl-4-hydroxybenzyl) phosphonate) calcic Irganox® 3125 34137-09-2 Acid 3,5-Di-tert-butyl-4-hydroxyhydrocinamic triester with 1,3,5-tris (2- hydroxyethyl) -S-triazine-2,4,6- (1H, 3H, 5H) -trione Irgafos® 168 31570-04-4 Tris (2,4-di-tert-butyl-phenyl) phosphite

Examples of reducing agents include sodium borohydride, hypophosphorous acid, Irgafos® 168 and mixtures of the same.

(F) Agent to release dirt

In the compositions of this invention you can any agent used to release polymeric dirt known to the person skilled in the art. Agents to release the Polymeric dirt are characterized by having hydrophilic segments, to hydrophilize the surface of hydrophobic fibers such as the polyester or nylon, and hydrophobic segments, to deposit on hydrophobic fibers and remain attached to them until wash and rinse cycles end and thus serve as anchor for hydrophilic segments. This allows stains produced after treatment with the agent to release the dirt are easier to clean in subsequent processes of washed.

If used, agents to release the dirt will generally comprise about 0.01% at approximately 10.0% by weight of the present compositions detergents, typically about 0.1% to about 5% and preferably about 0.2% at approximately 3.0%

In the following documentation, all of which are included herein as reference, polymers for the release of dirt suitable for use in the present invention are described. US 3,959,230, issued to Hays on May 25, 1976; US 3,893,929, granted to Basadur on July 8, 1975; US 4,000,093, granted to Nicol et al. . on December 28, 1976; US 4,702,857, issued to Gosselink on October 27, 1987; US 4,968,451, granted to Scheibel et al. on November 6; US 4,702,857, issued to Gosselink on October 27, 1987; US-4,711,730, issued to Gosselink et al. on December 8, 1987; US-4,721,580, issued to Gosselink on January 26, 1988; US 4,877,896, granted to Maldonado et al. on October 31, 1989; US 4,956,447, Gosselink et al. on September 11, 1990; US 5,415,807, issued to Gosselink et al. on May 16, 1995; EP-0 219 048, issued April 22, 1987 to Kud, et al. .

Other suitable soil release agents are described in US 4,201,824, Violland et al. ; US 4,240,918 Lagasse et al. ; US 4,525,524 Tung et al. ; US 4,579,681, Ruppert et al. ; US 4,240,918; US 4,787,989; US 4,525,524; EP-279,134 A, granted in 1988 to Rhone-Poulenc Chemie; EP-457,205 A, granted to BASF (1991); and DE-2,335,044, granted to Unilever NV, 1974.

Commercial dirt release agents include METOLOSE SM100 and METOLOSE SM200, manufactured by Shin-etsu Kagaku Kogyo K.K., SOKALAN products as, p. e.g., SOKALAN HP-22, marketed by BASF (Germany), ZELCON 5126 (from Dupont) and MILEASE T (from ICI).

(G) Bactericides

Examples of bactericides used in Compositions of this invention include glutaraldehyde, formaldehyde, 2-Bromo-2-nitro-propane-1,3-diol sold by Inolex Chemicals, located in Philadelphia, Pennsylvania, under the trade name Bronopol®, and a mixture of 5-Chloro-2-methyl-4-isothiazolin-3-one Y 2-methyl-4-isothiazolin-3-one sold by Rohm and Haas Company under the trade name Kathon 1 a 1,000 ppm by weight of the agent.

(H) Perfume

The present invention may contain a perfume. Suitable perfumes are described in US Pat.
5,500,138, said patent being incorporated as a reference herein.

In this report the perfume includes a aromatic substance or a mixture of aromatic substances, including natural odoriferous substances (i.e. those obtained by extraction of flowers, herbs, leaves, roots, barks, wood, buds or plants), artificial (i.e., a mixture of different natural oils or oily components) and synthetic (it is say, obtained by synthesis). These types of materials usually go accompanied by auxiliary materials such as fasteners, extenders, stabilizers and solvents. These auxiliary substances too are included in the meaning of "perfume" herein memory. Typically, perfumes are complex mixtures of a plurality of organic compounds.

The range of natural raw substances can encompass not only easily volatile components, but also moderately volatile and slightly volatile and the synthetic may include representatives of virtually all kinds of fragrant substances, as will be evident from the following compilation Illustrative: natural products, such as absolute tree moss, Basil oil, citrus oils (such as bergamot oil, tangerine oil, etc.), absolute mastix, myrtle oil, oil of palmarosa, patchouli oil, petitgrain oil from Paraguay, wormwood oil, alcohols, such as farnesol, geraniol, linalool, nerol, phenylethyl alcohol, rodinol, cinnamic alcohol, aldehydes, as citral, Helional ™, alpha-hexyl cinnamaldehyde, hydroxycitronellal, Lilial ™ (p-tert-butyl-alpha-methyldihydrocinamaldehyde), methylnonyl acetaldehyde, ketones, such as alilionone, alpha-ionone, beta-ionone, isoraldein (isomethyl-alpha-ionone), methylionone esters, such as allyl-phenoxyacetate, benzyl salicylate, cinnamyl propionate, acetate citronellyl, citronellyl ethoxylate, decyl acetate, acetate dimethylbenzylcarbinyl, dimethylbenzylcarbinyl butyrate, ethyl acetoacetate, ethyl acetylacetate, isobutyrate hexenyl, linalyl acetate, methyl dihydrojasmonate, acetate of stiralyl, vetiveryl acetate, etc., lactones, such as gamma-undecalactone, various components frequently used in perfumery, such as musk ketone, indole, p-mentan-8-uncle-3-one,  and methyl eugenol. Similarly, any acetal or fragrant ketal known in the art can be added to the present composition as an optional component of the perfume (c) conventionally formulated. Said acetals and fragrant ketals Conventional ones include the well known methyl and ethyl acetals and ketals as well as acetals and ketals include based on benzaldehyde, those comprising phenylethyl moieties, or most recently developed specialties such as those described in United States patent entitled "Acetals and Ketals of Oxo-Tetralins and Oxo-Indanes ", see US Patent 5,084,440, granted to Givaudan Corp on January 28, 1992. Of course, other specialties Recent synthetics can be included in the compositions of perfume for fabric softening compositions totally formulated These include enol ethers of oxo-tetratralines substituted with alkyl and oxo-indanes as described in the patent US 5,332,725, granted to Givaudan on July 26, 1994; or Schiff bases as described in the patent US 5,264,615, granted to Givaudan on December 9 of 1991.

The perfumes useful in the compositions of the present invention are practically free of products halogenated and nitroalmizcles.

The perfume can be present at a level of 0% at 10%, preferably from 0.1% to 5% and more preferably from 0.2% to 3%, by weight of the final composition. The softening compositions of fabrics of the present invention provide a better deposition of the perfume on the fabric.

(I) Enzyme

The compositions and processes of this invention may also use one or more enzymes such as lipases, proteases, cellulases, amylases and peroxidases. A preferred enzyme of use in the present invention is a cellulase enzyme. In In effect, this type of enzyme will also provide an advantage of preservation of color to treated tissue. Cellulases useful in present invention include those of bacterial and fungal type with preferably an optimum pH value of 5 to 9.5. In US 4,435,307 fungal cellulases are described suitable for the strain Humicola insolens or Humicola DSM1800 or a 212-mushroom-producing cellulase belonging to genus Aeromonas, and cellulase extracted from the hepatopancreas of mollusk Dolabella marine Solander headset. Suitable cellulases are described also in patents GB-A-2,075,028; GB-A-2,095,275 and DE-OS-2,247,832. CAREZYME® and CELLUZYME® (Novo) are especially useful. Other cellulases Suitable are described in WO 91/17243, granted to Novo, WO 96/34092, WO 96/34945 and EP-A-0,739,982. In practice, for the usual commercial preparations the typical amounts are up to 5 mg by weight, more typically 0.01 mg to 3 mg, of active enzyme per gram of the detergent composition. Said of another Thus, the compositions of the present invention will comprise typically 0.001% to 5%, preferably 0.01% to 1%, by weight of a commercial enzyme preparation. In cases where it is possible to define the activity of the preparation of the enzyme of another mode, as with cellulases, other units of activity (eg CEVU or equivalent viscosity units of cellulase). For example, the compositions of the present invention may contain cellulase enzymes at a concentration equivalent to an activity of 0.5 to 1000 CEVU / gram of composition. The cellulase enzyme preparations used for the purpose of formulation of the compositions of this invention typically It has an activity between 1,000 and 10,000 CEVU / g in the form liquid, approximately 1,000 CEVU / g in solid form.

(J) Other optional ingredients

The composition of the present invention may include optional components conventionally used in laundry detergent compositions completely formulated as described in application WO 97/05226, by example, detergency builders, bleach, brighteners, colorants; surfactants; agents anti-shrinkage; enhancing agents of the friability; staining agents; germicides; fungicides; antioxidants such as butylated hydroxytoluene, agents anti-corrosion, antifoaming agents, polymer polyamino functional as described in the codependent application EP 97201488.0 (EP-A-0841391), dispersible polyolefin such as Velustrol® as described in the PCT / US 97/01644 codependent application (WO-A-97/28239), and the like. The The present invention may also contain chelating agents. optional

A typical amount of said components Optional will be 0% to 15% by weight.

The present invention may also include other compatible ingredients, including those described in WO96 /
02625, WO96 / 21714, and WO96 / 21715.

Tissue abrasion reduction

The advantage provided by the use of the present invention is that the abrasion of the tissue that is reduced is reduced produced in the tissues during a washing process, e.g. ex. be it is intended that the washed tissues that come into contact with a crystal growth inhibitor or composition thereof present reduced abrasion compared to non-woven fabrics are in contact with any crystal growth inhibitor or compositions that do not contain crystal growth inhibitor They are washing.

Without pretending to impose any theory, it is believed that The mechanism for producing the advantage of the invention is due to the abrasive effect of the growth of microcrystals inorganic on the tissue surface during washing in absence of crystalline growth inhibitor. It is believed that the source of inorganic compounds is the process incorporated water washing, as well as the dirt present in the garments washed

The advantage of tissue abrasion reduction is evaluated visually using the following test method of tissue reduction:

Tissue Reduction Test Method

The compositions according to the present invention can be measured in terms of tissue reduction by washing a cotton towel for repeated cycles (eg 20 cycles) respectively with and without growth inhibitor crystalline.

The method is comparative and, therefore, only it can test the abrasion of a tissue with respect to that of other. Tissue abrasion is evaluated using the following scale:

0 Non abrasion of the fabric

1 Very weak tissue abrasion

2 Abrasion of weak tissue

3 Moderate tissue abrasion

4 Strong tissue abrasion

5 Very strong tissue abrasion

In another aspect of the invention, it is provided a method to reduce tissue abrasion, particularly during domestic washing processes, which includes the stages of putting in contact with tissues with a crystal growth inhibitor or a composition thereof as defined above in the present memory Most preferably, the application of crystal growth inhibitor to tissue surface se It does during the rinse stage of a laundry process. More preferably, the crystal growth inhibitor is incorporates fabric softener compositions.

In the illustrated compositions, the abbreviated component identifications have the following meanings:

DEQA

: Chloride di- (seboyl-oxy-ethyl) dimethyl ammonium

DOEQA

: Di- (Oleyloxyethyl) dimethyl methyl sulfate ammonium

DTDMAC

: Dimethylammonium Design Chloride

DHEQA

: Methyl sulfate Di- (seboyl-oxy-ethyl soft) hydroxyethyl methyl ammonium

Fatty acid

: fatty acid tallow IV = 18

Electrolyte

: Calcium Chloride

DTDMAMS

: Dimethylammonium Methylsulfate Disebo

SDASA

: 1: 2 Ratio between stearyl dimethyl amine: acid stearic pressed three times

Glycosperse S-20

: Monostearate of polyethoxylated sorbitan marketed by Lonza

Clay

: Calcium bentonite clay, Bentonite L, sold by Southern Clay Products

APR25

: Sebum ethoxylated alcohol with 25 moles of oxide ethylene per mole of alcohol

PEG

: Polyethylene glycol 4000

PEI 1200 E4

: Ethoxylated polyethyleneimine (PM 1800, with 50% active substance) synthesized as in the {} \ hskip0,1cm example of Synthesis 2

PEI 1800 E7

: Ethoxylated polyethyleneimine (PM 1800, with 50% active substance) synthesized as in the {} \ hskip0,1cm example of Synthesis 1

PEI 1200 The

: Ethoxylated polyethyleneimine (PM 1200, with 50% of active substance in water) synthesized {} \ hskip0,1cm as in the Synthesis example 2

Dye fixative one

: Cationic dye fixing agent (50% active substance) marketed with {} \ hskip0,1cm on Tinofix Eco trade name of Ciba-Geigy

Dye fixative 2

: Cationic dye fixative emulsified (30% active substance) marketed {} \ hskip0,1cm under the trade name Rewin SRF-O of CHT-Beitlich

THE

: C 12 alkyl linear benzene sulfonate sodium

TAS

: Sodium tallow alcohol sulfate

C25AS

: C 12 -C 15 alkyl sulfate linear sodium

CxyEzS

: C 1x-C 1 alkyl sulfate branched sodium condensed with z moles of oxide ethylene

C45E7

: A primary C 14-15 alcohol fundamentally linear condensed with an average of {} \ moles 1 moles of ethylene oxide

C25 E3

: A primary C 12-15 alcohol branched condensate with an average of 3 moles of {} \ ethylene oxide

Cationic ester

: C 12 / C 14 ester mixture of hill

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Soap

: Linear sodium alkylcarboxylate derived from a 80/20 mixture of tallow and oils of {} \ hskip0,1cm coconut.

TFAA

: Alkyl-N-methyl C -_ {16} -C_ {18} glucamide

TPKFA

: C 12 -C 14 fatty acids fully distilled cutting

Zeolite A

: Hydrated sodium aluminosilicate of formula Na 12 (A10 2 SiO 2) 12 C 27 O 2 O which it has a {} \ hskip0.1cm primary particle size in the 0.1 to 10 micrometer range

Citric acid

: Anhydrous citric acid

Carbonate

: Anhydrous sodium carbonate with a size of particles between 200 µm and 900 µm

Silicate

: Amorphous sodium silicate (SiO2: Na2O; 2.0 ratio)

Sulfate

: Anhydrous sodium sulfate

Citrate

: Trisodium citrate dihydrate with activity 86.4% with a size distribution of {} \ hskip0,1cm particles between 425 µm and 850 µm

MA / AA

: 1: 4 maleic acid / acrylic acid copolymer, average molecular weight approximately {} \ hskip0.1cm 70,000

CMC

: Sodium carboxymethylcellulose

Savinase

: Proteolytic enzyme activity 4 KNPU / g

Carezyme

: Cellulite enzyme activity 1000 CEVU / g

Termamyl

: Activity amylolytic enzyme 60 KNU / g

Lipolase

: Activity lipolytic enzyme 100 kLU / g all sold by NOVO Industries A / S and {} \ hskip0.1cm of activity mentioned above unless indicated contrary

PB4

: Sodium perborate tetrahydrate of formula Nominal NaBO_2 \ cdot3H_ {2} O \ cdotH_ {2} O2 {

PB1

: Anhydrous sodium perborate bleach formula Nominal NaBO_ {2} \ cdotH_ {2} {2}

TAED

: Tetraacetylene diamine

DTPMP

: Diethylenetriamine penta (methylene phosphonate), marketed by Monsanto with the brand {} \ hskip0,1cm Dequest 2060

HEDP

: acid 1,1-hydroxyethane diphosphonic

PBT

: Acid 2-phosphonobutane-1,2,4-tricarboxylic

Polycarboxylic

: polycarboxylic compound marketed by BASF with the trade name Soka- {} \ hskip0,1cm lan CP 10

Glycolic

: Glycolic Acid

Photoactivated

: Sulfonated zinc phthalocyanine encapsulated in bleaching polymer soluble in dex- {} \ hskip0,1cm trina

Rinse aid

: 4,4'-bis (4-anilino-6-morpholino-1.3.5-triazin-2-yl) amino) stilbene-2: 2'-disulfonate only {} \ hskip0,1cm dico.

Defoamer silicone

: foam controller type polydimethylsiloxane with siloxane copolymer- {} \ hskip0.1cm oxyalkylene as a dispersing agent with a ratio between said {} \ hskip0,2cm foam controller and said agent 10: 1 to 100: 1 dispersant

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Synthesis Example one

Preparation of PEI 1800 E1

Stage TO)

The ethoxylation is performed in an autoclave of 7.5L (2 gallon) agitated stainless steel equipped for temperature measurements and control measurements, pressure, vacuum and purged with inert gas, sampling and for introduction of oxide Ethylene as a liquid. A clean cylinder of 9 kg (? 20 lb) of ethylene oxide (ARC) is adjusted to provide oxide ethylene as a liquid by an autoclave pump with the cylinder placed on a scale so that it could be monitored the change of weight of the cylinder.

A fraction of 750 g of polyethyleneimine (PEI) (Nippon Shokubai, Epomin SP-018 that has a weight molecular average of 1800 equal to 0.417 moles of polymer and 17.4 moles of nitrogen functions) is added to the autoclave. The autoclave is then seal and purge air (applying vacuum at -94.8 kPa (minus 28 '' Hg) followed by pressurization with nitrogen up to 1.7 MPa (250 psia), then evacuated to atmospheric pressure). The contents of the autoclave are heated to 130 ° C by applying simultaneously empty. After about an hour, the autoclave is charged with nitrogen at approximately 1.7 MPa (250 psia) by cooling the autoclave to approximately 105 ° C. Then gradually over time ethylene oxide is added to the autoclave to while the pressure and temperature of the autoclave and flow rate of ethylene oxide. Pump ethylene oxide is disconnected and cooling is applied to limit the possible temperature rise resulting from any reaction exothermic The temperature is maintained between 100 and 110 ° C leaving the total pressure increases gradually over the course of the reaction. After adding a total of 750 to the autoclave grams of ethylene oxide (practically equivalent to one mole of ethylene oxide by nitrogen function of the PEI), the temperature increases to 110 ° C and the autoclave is stirred for one hour additional. At this point, vacuum is applied to remove any residual unreacted ethylene oxide.

Stage B)

The reaction mixture is deodorized at then passing approximately 2.8 m 3 (100 ft 3) of inert gas (argon or nitrogen) by means of a dispersion frit of gas and through the reaction mixture by stirring and heating the mix up to 130 ° C.

The final reaction product cools slightly and collected in glass vessels purged with nitrogen.

In other preparations the neutralization and Deodorization is performed in the reactor before discharging the product.

If a PEI 1800 E_ {7} is desired, the stage Following catalyst addition will be included between Stage A and B.

It is applied continuously vacuum cooling simultaneously the autoclave at approximately 50 ° C introducing 376 g of 25% sodium methoxide in methanol solution (1.74 moles to achieve a 10% catalyst charge based on the nitrogen functions of the PEI). The methoxide solution is aspirated in the empty autoclave and then the reference of the Autoclave temperature controller increases up to 130 ° C. Be uses a device to control the power consumed by the agitator. The power of the agitator is controlled together with the temperature and pressure The power and temperature values of the stirrer gradually increase as methanol is removed of the autoclave and the viscosity of the mixture increases and stabilizes in about 1 hour indicating that most methanol has been removed. The mixture is further heated and stirred under vacuum. for another 30 minutes.

The vacuum is removed and the autoclave is cooled up to 105 ° C while charging with nitrogen up to 1.7 MPa (250 psia) and then extracted to ambient pressure. He Autoclave is charged up to 1.4 MPa (200 psia) with nitrogen. TO then gradually over time ethylene oxide is added to the autoclave while the pressure is carefully controlled and autoclave temperature and flow rate of ethylene oxide while maintaining the temperature between 100 and 110ºC and limiting the possible temperature resulting from any reaction exothermic After adding 4,500 g of ethylene oxide (resulting in a total of 7 moles of ethylene oxide per mole of PEI nitrogen function), the temperature rises to 110 ° C and the mixture is allowed to stir for an additional hour.

The reaction mixture is collected in containers. purged with nitrogen and eventually transferred to a flask of round bottom of three mouths of 22 l equipped with heating and agitation. The strong alkali type catalyst is neutralized adding 167 g of methanesulfonic acid 1.74 moles).

Other preferred examples such as PEI 1800 E2, PEI 1800 E4, PEI 1800 E15 and PEI 1800 E20 can be prepared using the previous method adjusting reaction time and quantity relative ethylene oxide used in the reaction.

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Synthesis Example 2

Preparation of PEI 1200 E1

Stage TO)

The ethoxylation is performed in an autoclave of 7.5L (2 gallon) agitated stainless steel equipped for temperature measurements and control measurements, pressure, vacuum and purged with inert gas, sampling and for introduction of oxide Ethylene as a liquid. A clean cylinder of 9 kg (? 20 lb) of ethylene oxide (ARC) is adjusted to provide oxide ethylene as a liquid by an autoclave pump with the cylinder placed on a scale so that it could be monitored the change of weight of the cylinder.

A fraction of 750 g of polyethyleneimine (PEI) (which has an average molecular weight of 1200 equal to approximately 0.625 moles of polymer and 17.4 moles of functions nitrogen) is added to the autoclave. The autoclave is sealed to then and purge air (applying vacuum at -94.8 kPa (less 28 '' Hg) followed by pressurization with nitrogen up to 1.7 MPa (250 psia), then evacuating to atmospheric pressure). He Autoclave content is heated to 130 ° C applying simultaneously empty. After about an hour, the autoclave is charged with nitrogen at approximately 1.7 MPa (250 psia) by cooling the autoclave to approximately 105 ° C. Then gradually over time ethylene oxide is added to the autoclave to while the pressure and temperature of the autoclave and the flow rate of ethylene oxide. Pump ethylene oxide is disconnected and cooling is applied to limit the possible temperature resulting from any exothermic reaction. The temperature is maintained between 100 and 110 ° C leaving the pressure Total increase gradually over the course of the reaction. After adding to the autoclave a total of 750 grams of ethylene oxide (practically equivalent to one mole of oxide of ethylene by PEI nitrogen function), the temperature rises to 110 ° C and the autoclave is stirred for an additional hour. In At this point, vacuum is applied to remove any ethylene oxide without reacting residual.

Stage B)

The reaction mixture is deodorized at then passing approximately 2.8 m 3 (100 ft 3) of inert gas (argon or nitrogen) by means of a dispersion frit of gas and through the reaction mixture by stirring and heating the mix up to 130 ° C.

The final reaction product cools slightly and collected in glass vessels purged with nitrogen.

In other preparations the neutralization and Deodorization is performed in the reactor before discharging the product.

If a PEI 1800 E_ {7} is desired, the stage Following catalyst addition will be included between Stage A and B.

It is applied continuously vacuum cooling simultaneously the autoclave at approximately 50 ° C introducing 376 g of 25% sodium methoxide in methanol solution (1.74 moles to achieve a 10% catalyst charge based on the nitrogen functions of the PEI). The methoxide solution is aspirated in the empty autoclave and then the reference of the Autoclave temperature controller increases up to 130 ° C. Be uses a device to control the power consumed by the agitator. The power of the agitator is controlled together with the temperature and pressure The power and temperature values of the stirrer gradually increase as methanol is removed of the autoclave and the viscosity of the mixture increases and stabilizes in about 1 hour indicating that most methanol has been removed. The mixture is further heated and stirred under vacuum. for another 30 minutes.

The vacuum is removed and the autoclave is cooled up to 105 ° C while charging with nitrogen up to 1.7 MPa (250 psia) and then extracted to ambient pressure. He Autoclave is charged up to 1.4 MPa (200 psia) with nitrogen. TO then gradually over time ethylene oxide is added to the autoclave while the pressure is carefully controlled and autoclave temperature and oxide flow rate of ethylene while maintaining the temperature between 100 and 110 ° C and limiting the possible temperature resulting from any reaction exothermic After adding 4,500 g of ethylene oxide (resulting in a total of 7 moles of ethylene oxide per mole of PEI nitrogen function), the temperature rises to 110 ° C and the autoclave is allowed to stir for an additional hour.

The reaction mixture is collected in containers. purged with nitrogen and eventually transferred to a flask of round bottom of three mouths of 22 l equipped with heating and agitation. The strong alkali type catalyst is neutralized adding 167 g of methanesulfonic acid 1.74 moles).

Other preferred examples such as PEI 1200 E2, PEI 1200 E3, PEI 1200 E15 and PEI 1200 E20 can be prepared using the previous method adjusting reaction time and quantity relative ethylene oxide used in the reaction.

Example 1

Using the defined test method previously, the tissues were contacted with a aqueous liquid composition comprising 2% by weight of HEDP and a tissue abrasion was then measured.

It was observed that the tissues treated with the crystal growth inhibitor showed less abrasion of the tissue versus compositions that had not been treated.

Example 2

Similar results were obtained when They used the following compositions.

Component TO B C D AND F G H DEQA 2.6 2.9 18.0 19.0 19.0 - - - APR25 - 1.0 - - - - - Acid fatty 0.3 - 1.0 - - - - - Acid hydrochloric 0.02 0.02 0.02 0.02 0.02 - - - PEG - - 0.6 0.6 0.6 - - - Scent 1.0 1.0 1.0 1.0 1.0 0.1 0.1 0.1 Defoamer silicone 0.01 0.01 0.01 0.01 0.01 - - - PEI 1200 E1 3 3 3 3 - fifteen - 10 PEI 1200 E2 - 3 10 - Dye fixative one - one one one - - 10 - Dye fixative 2 - 2 2 2 - - - - HEDP 0.2 - - 0.2 - 0.4 - 0.8 Glycolic - 0.2 - - 0.5 - 0.4 - Polycarboxylate - - 0.5 - - 0.4 - - Electrolyte (ppm) - - 600 600 1200 - - - Colorant (ppm) 10 10 fifty fifty fifty - - - Water and minority components up to 100

Component I J K L M DEQA 2.6 19.0 - - - Acid fatty 0.3 - - - - Acid hydrochloric 0.02 0.02 - - - PEG - 0.6 - - - Scent 1.0 1.0 0.1 0.1 0.2 Defoamer silicone 0.01 0.01 - - - PEI 1200 E1 3 3 fifteen - 10

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(Continuation)

Component I J K L M PEI 1200 E4 - - - 10 - Dye fixative one - one - - 2.5 Dye fixative 2 - 2 - - - PBT 0.2 0.2 0.4 0.8 0.5 Polycarboxylate - - 0.4 - - Electrolyte (ppm) - 600 - - - Colorant (ppm) 10 fifty - - - Water and components minorities up to 100

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Component N OR P Q R S DTDMAC - - - fifteen - - DEQA 2.6 19.0 - - 2.6 19.0 APR25 0.3 - - - 0.3 - Acid fatty 0.3 - - - 0.3 - Acid hydrochloric 0.02 0.02 - 0.02 0.02 0.02 PEG - 0.6 - 0.6 - 0.6 Scent 1.0 1.0 0.1 1.0 1.0 1.0 Defoamer silicone 0.01 0.01 - 0.01 0.01 0.01 PEI 1800 E1 3 3 10 3 3 3 HEDP 0.2 0.2 - - - - PBT - - - - 0.2 0.2 Glycolic - - 0.2 - - - Polycarboxylic - - - 0.2 - - Dye fixative one one one 10 one one one Dye fixative 2 2 2 - 2 2 2 Electrolyte (Ppm) - 600 - 600 - 600 Colorant (ppm) 10 fifty - fifty 10 fifty Water and minority components up to 100

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Example 3

Similar results were obtained when they used the following compositions for use as sheets for add to dryer.

T OR V W X Y Z AA BB DOEQA 40 40 25 - - - - - - DHEQA - - - twenty twenty - - - - DTDMAMS - - - - - twenty twenty 12 60 SDASA 30 30 30 twenty twenty 30 30 twenty - Glycosperse S-20 - - - 10 10 - - - - Monostearate glycerol - - - - - twenty twenty 10 - Clay 4 4 4 3 3 4 4 4 - Scent 0.7 0.7 1.1 0.7 0.7 1.6 1.6 2.6 1.4 PEI 1800 E4 - - 5 - - - - - - PEI 1200 E1 - - - 4 4 2.2 2.2 - - PEI 1800 E3 2 2 - - - - - 5 7.0 Dye fixative one 2 2 5 4 4 2.2 2.2 5 3 HEDP 0.2 - - 0.5 - - - - 0.7 BPT - 0.2 - - 0.9 - 0.2 Glycolic - - 0.2 - - 0.2 - - - Polycarboxylic - - 0.2 - - - - 0.4 - Acid rest stearic

Example 4

Similar results were obtained with The following detergent compositions.

DC DD EE Zeolite TO 24.0 23.0 23.0 Sulfate 9.0 - - MA / AA 4.0 4.0 4.0 THE 8.0 8.0 8.0 TAS - 2.0 2.0 Silicate 3.0 3.0 3.0 CMC 1.0 0.4 0.4

(Continuation)

DC DD EE Rinse aid 0.2 - - Soap 1.0 - - DTPMP 0.4 0.4 0.4 C45E7 2.5 2.0 2.0 C25E3 2.5 2.0 2.0 Defoamer silicone 0.3 5.0 5.0 Scent 0.3 0.3 0.3 Carbonate 13.0 16.0 16.0 Citrate - 5.0 5.0 PB4 18.0 - - PB1 4.0 14.0 14.0 TAED 3.0 6.0 6.0 Bleaching photoactivated 0.02% - - Savinase 1.0 1.0 1.0 Lipolase 0.4 0.4 0.4 Termamyl 0.30 0.6 0.6 Carezyme - 0.6 0.6 PEI 1800 E7 AO 1.0 - - PEI 1200 E7 AO - 1.0 1.0 HEDP 0.2 - - BPT - - 0.2 Glycolic - 0.2 0.2 Polycarboxylic - 0.2 0.2 Rest (moisture and miscellaneous) up to 100

Example 5

Similar results were obtained with the following liquid detergent compositions.

FF C25AS 13 C25E3S 2 TFAA 6

(Continuation)

FF Alkyl chloride C12-14 dimethylhydroxy ethyl ammonium one Ester cationic 1.5 TPKFA fifteen Acid citric one Ethanol 2 1,2-propanediol 8 NaOH up to pH 7.5 DTPMP 1.2 Savinase 0.5 Termamyl (300 KNU / g) 0.15 Acid boric 1.5 Softening clay of the bentonite type 4 Clay SD3 suspension 0.3 PEI 1200 E7 one HEDP 0.2 Rest (moisture and miscellaneous) 100

Claims (7)

1. Use of a crystal growth inhibitor defined by the "growth inhibition measurement test crystalline "and selected from a carboxylic compound, an acid organic monophosphonic acid, an organic diphosphonic acid and mixtures of the same, wherein said crystalline growth inhibitor is incorporates into compositions at a level of 0.005% to less than 10% in weight of the composition, to reduce the abrasion of the tissue that Produces during the domestic tissue washing process. 2. Use according to claim 1, wherein said carboxylic compound is glycolic acid. 3. Use according to claim 1, wherein said organ-monophosphonic acid is acid 2-phosphonobutane-1,2,4-tricarboxylic. 4. Use according to claim 1, wherein said organ diphosphonic acid is acid hydroxy-ethane-1,1-diphosphonic. 5. Use according to any one of the claims 1-4, wherein said inhibitor of crystalline growth is incorporated into the compositions at a 0.005% to 0.5% level, preferably 0.05% to 0.25%, and more preferably from 0.1% to 0.2% by weight of the composition. 6. Use according to claim 5, wherein said Composition is selected from additives that are added before or after of washing, washing compositions, rinsing compositions of a laundry process, fabric softener compositions added during rinsing and compositions added to the dryer, preferably compositions added to the rinse and compositions fabric softeners added during rinsing. 7. A method to reduce tissue abrasion, that occurs during domestic washing, which includes the stage of contacting the tissues with a composition as defined in any one of claims 1-6.