EP0934382A1

EP0934382A1 - The use of polycationic condensation products as an additive for detergents or detergent after treatment agents in order to inhibit running of colours and to reduce colour loss

Info

Publication number: EP0934382A1
Application number: EP97911213A
Authority: EP
Inventors: Dieter Boeckh; Hans-Ulrich JÄGER; Jürgen Alfred LUX
Original assignee: BASF SE
Current assignee: BASF SE
Priority date: 1996-10-21
Filing date: 1997-10-10
Publication date: 1999-08-11
Anticipated expiration: 2017-10-10
Also published as: DE19643281A1; US6262011B1; ATE230010T1; US6025322A; JP4294734B2; WO1998017762A1; US20020045563A1; JP2001503089A; EP0934382B1; DE59709029D1; US6465415B2; ES2188915T3

Abstract

PCT No. PCT/EP97/05606 Sec. 371 Date Apr. 21, 1999 Sec. 102(e) Date Apr. 21, 1999 PCT Filed Oct. 10, 1997 PCT Pub. No. WO98/17762 PCT Pub. Date Apr. 30, 1998Polycationic condensates obtainable by condensing (a) piperazine, 1-alkylpiperazines having 1 to 25 carbon atoms in the alkyl group, 1,4-dialkylpiperazines having 1 to 25 carbon atoms in the alkyl group, 1,4-bis(3-aminopropyl)piperazine, 1-(2-aminoethyl)piperazine, 1-(2-hydroxyalkyl)piperazines having 2 to 25 carbon atoms in the alkyl group, imidazole, C1-C25-alkylimidazoles or mixtures of said compounds with (b) alkylene dihalides, epihalohydrins and/or bisepoxides in the molar ratio from 1:0.8 to 1:1.1 and, where appropriate, quaternization of the condensates with C4-C25-alkylating agents or by heating triethanolamine or triisopropanolamine in the presence of acidic catalysts and quaternizing the condensates with C4-C25-alkylating agents as color-fixing additive to detergents and fabric conditioners, and detergents which comprise (i) 1-50% by weight of at least one nonionic surfactant, (ii) 0-4.0% by weight of an anionic surfactant and (iii) 0.05-2.5% by weight of the polycationic condensate are used as color transfer inhibiting and color release reducing additive, and fabric conditioners which comprise a fabric softener, a nonionic surfactant and 0.1-2.5% by weight of said polycationic condensates.

Description

Use of polycationic condensation products as a color-transfer-inhibiting and color-change-reducing additive to detergents and post-washing agents

description

The invention relates to the use of polycationic condensation products as color transfer-inhibiting and color change-reducing additive to detergents and post-treatment agents as well as detergents and post-treatment agents containing polycationic condensation products.

When washing dyed textiles, the dye is partially detached from the dyed textiles and transferred from the wash liquor to other fabrics. For example, if you wash white laundry together with colored textiles, the white laundry will be soiled. In order to prevent the detached textile dye from being transferred from the wash liquor to the wash items, so-called color detergents were developed which contain polymeric color transfer inhibitors. These are, for example, homo- and copolymeπsates of vmylpyrrolidone and vinyl imidazole, cf. DE-B-22 32 353 and DE-A-28 14 287.

EP-A-0 462 806 discloses the use of cationic dye-fixing agents in post-wash baths together with fabric softeners. The aftertreatment of the wash takes place in the washing machines usually used in the household at temperatures below 40 ° C. According to the information given in the application, the dye-fixing agents can also be used in nonionic detergents. The cationic fixing agents slow the detachment of the dye from the dyed textile material during the treatment process.

The present invention has for its object to provide more effective means for suppressing the dye detachment and the dye transfer to other textiles during washing and during the aftertreatment of dyed textiles.

The object is achieved according to the invention with the use of polycationic condensation products which can be obtained by condensing

(a) Piperazm, 1-Alkylpιperazmen with 1 to 25 carbon atoms in the

Alkyl group, 1,4-di-alkyl perazmas with 1 to 25 carbon atoms in the alkyl group, 1,4-bis (3-ammopropyl) -piperazm, 1- (2-aminoethyl) piperazine, 1- (2-hydroxyalkyl) piperazines with 2 to 25 C atoms in the alkyl group, imidazole, Ci to C ₂₅ -C alkylimidazoles or mixtures of the compounds mentioned

(b) alkylene dihalides, epihalohydrins and / or bis-epoxides

in a molar ratio of 1: 0.8 to 1: 1.1 and, if necessary, quaternization of the condensation products with C ₄ to C2 ₅ alkylating agent

or by heating triethanolamine or triisopropanolamine in the presence of acidic catalysts and quaternizing the condensation products with C ₄ -C ₂₅ -alkylating agents

as an ink transfer inhibiting and ink release reducing additive to detergents and laundry aftertreatment agents.

Condensation products which can be obtained by condensation of are preferably used for this purpose

(a) Piperazine, 1- (2-hydroxyethyl) piperazine, 1- (2-aminoethyl) piperazine, imidazole, Ci to C -C alkylimidazoles or mixtures of the compounds mentioned

(b) 1,2-dichloroethane, 1,2-dichloropropane, 1,3-dichloropropane, 1,4-dichlorobutane, epichlorohydrin, bis-epoxy-butane or mixtures of the compounds mentioned and

possibly

(c) Quaternization of the condensation products with C6 ~ to C ₂₂ alkyl halides or Cs ^_ to C ₂ epoxides

or by heating triethanolamine or triisopropanolamine with acidic catalysts and quaternizing the condensation products with C ₆ -C ₂ 2 -alkyl halides or C ₈ -C ₂₂ epoxides.

The molecular weight of the condensation products is for example from 500 to 100,000, cationic condensation products having molecular weights in the Be ^¬ are preferably 1000 to 50 000. Particular preference is rich 1500-25000.

The degree of quaternization of the amino groups of the condensation products is, for example, at least 25%, preferably at least 50. The best results are with cationic condensate ^¬ get sationsprodukten in which the quaternization of Amino groups is 70 to 100%. The condensation products described above are known from EP-B 0 209 787 and EP-A-0 223 064 as post-treatment agents for improving the wet fastness of dyeings and prints with reactive dyes. Polycationic condensation products which are produced by reacting

(a) piperazine and / or imidazole with (b) epihalohydrin

or by heating triethanolamine or triisopropylamine in the presence of acidic catalysts

and subsequent reaction with C - to C ₂₂ alkyl chlorides, in particular Cζ - to Ci ₂ alkyl halides such as in particular benzyl chloride are available.

The polycationic condensation products are soluble in water or easily dispersible therein. They are preferably produced by reacting the components in an aqueous medium or in bulk. If the condensation is carried out in aqueous solution, the concentration of the non-aqueous constituents is, for example, 10 to 80, preferably 20 to 60,% by weight.

According to the invention, the polycationic condensation products described above are used either as an additive to laundry detergents or as an additive to laundry aftertreatment agents. The cationic condensation products prevent or suppress the detachment of dyes from dyed textiles during the washing process or during the aftertreatment. The condensation products to be used according to the invention, for example in the absence of anionic surfactants, already achieve the maximum activity at concentrations of 10 to 100 ppm in the washing or rinsing liquor. A further increase in the amount used practically brings no increase in effectiveness. In contrast, when using dye fixing agents known from EP-A-0 462 806, concentrations of about 500 ppm are required in order to achieve the effect which can be achieved with the condensation products according to the invention.

The invention also relates to detergents

(i) 1 to 50% by weight of at least one nonionic surfactant, (ii) 0 to 4.0% by weight preferably up to 2.5% of an anionic surfactant and (iii) 0.05 to 2.5% by weight of at least one polycationic condensation product

included, which is obtainable by condensation of

(a) piperazine, 1-alkylpiperazines with 1 to 25 carbon atoms in the alkyl group, 1,4-dialkylpiperazines with 1 to 25 carbon atoms in the alkyl group, 1,4-bis (3-aminopropyl) piperazine,

1- (2-aminoethyl) piperazine, 1- (2-hydroxyalkyl) piperazines with 2 to 25 carbon atoms in the alkyl group, imidazole, C 1 ~ to C ₂ 5 "

Alkylimidazoles or mixtures of the compounds mentioned

(b) alkylene dihalides, epihalohydrins and / or bis-epoxides

in a molar ratio of 1: 0.8 to 1: 1.1 and optionally quaternization of the condensation products with C - to C ₂₅ -alkylating agents

or by heating triethanolamine or triisopropanolamine in the presence of acidic catalysts and quaternizing the condensation products with C - to C ₂ 5 -alkylating agents.

Suitable nonionic surfactants are, for example, alkoxylated C ₈ "to C ₂₂ alcohols. The alkoxylation can be carried out using ethylene oxide, propylene oxide and / or butylene oxide. All alkoxylated alcohols which contain at least two molecules of an abovementioned alkylene oxide added can be used as surfactants The alkylene oxide adducts mentioned can be block polymers of ethylene oxide, propylene oxide and / or butylene oxide or adducts which contain the alkylene oxides mentioned in a random distribution The nonionic surfactants contain, for example, 2 to 50, preferably 3 to 20, moles per mole of alcohol an alkylene oxide is preferably used as the alkylene oxide, and the alcohols are preferably derived from compounds having 10 to 18 carbon atoms, which may be natural or synthetic alcohols.

Another class of nonionic surfactants are alkyl polyglucosides with 8 to 22, preferably 10 to 18, carbon atoms in the alkyl chain. These compounds contain, for example, 1 to 20, preferably 1.1 to 5, glucoside units. Another class of nonionic surfactants are N-alkylglucamides of the general structure I or II

A C - N C A N C C II I (I) | || (II)

O B B 0

where A is Cζ to C ₂ alkyl, B is H or C] _ to C alkyl and C is a polyhydroxyalkanyl radical having 5 to 12 carbon atoms and at least 3 hydroxy groups. A is preferably Cio- bis

Ciβ -alkyl-, B for CH - and C for a C ₅ or C _ß -rest. For example, such compounds are obtained by the acylation of reducing aminated sugars with acid chlorides of Cio " ^C i ₈ carboxylic acids. The detergent formulations preferably contain Cχo -Cs alcohols ethoxylated with 3-12 mol ethylene oxide, particularly preferably ethoxylated fatty alcohols as nonionic surfactants.

Further preferred surfactants are the end group-capped fatty acid amide alkoxylates of the general formula known from WO-A-95/11225

R ^l CO NH (CH ₂ ) _n 0 (AO) _x R ² [HD,

in the

R ¹ denotes a C ₅ -C ₂ -alkyl or alkenyl radical,

R ^{2 is} a Ci * to C ₄ alkyl group, A is C ₂ to C alkylene, n denotes the number 2 or 3 and x has a value from 1 to 6.

Examples of such compounds are the reaction products of n-butyl glycol glycol of the formula H ₂ N- (CH ₂ -CH ₂ -0) ₃ -C ₄ H ₉ with methyl dodecanoate or the reaction products of ethyl tetraglycol amine of the formula H ₂ N- ( CH ₂ -CH ₂ -0) ₄ -C ₂ H ₅ with a commercially available mixture of saturated CQ - to CI _B -fatty acid methyl esters.

The powder or granular detergents can also contain one or more builders. Suitable inorganic builder substances are, for example all common inorganic builders such as aluminosilicates, silicates, carbonates and phosphates.

Suitable inorganic builders are, for example, aluminosilicates with ion-exchanging properties such as zeolites. Different types of zeolites are suitable, in particular zeolite A, X, B, P, MAP and HS in their Na form or in forms in which Na is partially replaced by other cations such as Li, K, Ca, Mg or ammonium. Suitable zeolites are described, for example, in EP-A-0 038 591, EP-A-0 021 491, EP-A-0 087 035, US-A-4 604 224, GB-A-2 013 259, EP-A- 0 522 726, EP-A-0 384 070 and WO-A-94/24251.

Other suitable inorganic builders are e.g. amorphous or crystalline silicates such as e.g. amorphous disilicates, crystalline disilicates such as the layered silicate SKS-6 (manufacturer Hoechst AG). The silicates can be used in the form of their alkali, alkaline earth or ammonium salts. Na, Li and Mg silicates are preferably used.

Other suitable inorganic builder substances are carbonates and hydrogen carbonates. These can be used in the form of their alkali, alkaline earth or ammonium salts. Na, Li and Mg carbonates or bicarbonates, in particular sodium carbonate and / or sodium bicarbonate, are preferably used.

The inorganic builders can be present in the detergents in amounts of 0 to 60% by weight together with organic cobuilders which may be used. The inorganic builders can be incorporated into the detergent either alone or in any combination.

In powder or granular or other solid detergent formulations, organic cobuilders are present in amounts of 0 to 20% by weight, preferably in amounts of 1 to 15% by weight, together with inorganic builders. The powdery or granular heavy-duty detergents can also contain other customary constituents, such as bleaching systems consisting of at least one bleach, optionally in combination with a bleach activator and / or a bleaching catalyst, as well as other conventional constituents such as soil-release polymers, graying inhibitors, enzymes, inorganic adjusting agents such as sodium sulfate , Complexing agents, optical brighteners, dyes, perfume oils, foam suppressants, corrosion inhibitors, phosphates and / or phosphonates in the usual amounts.

The detergents are preferably free from anionic surfactants, but can contain them as component (ii) in amounts of up to 4% by weight, preferably up to 2.5% by weight. Suitable anionic surfactants are suitable, for example, fatty alcohol sulfates of fatty alcohols having 8 to 22 carbon atoms, sulphated, ethoxylated CQ - to C ₂₂ 'alcohols or their water-soluble salts of alkali metal and ammonium ^¬. Other suitable anionic surfactants are alkyl sulfonates we Cβ to C ₂₄ alkanesulfonates and soaps such as the alkali metal salts of C ₈ to C ₂ carboxylic acids. Also suitable as anionic surfactants are C ₉ to C o -mearalkylbenzenesulfonates

(READ) . The anionic surfactants can also be used, for example, in the form of the hydroxyethylammonium, di (hydroxyethyl) amium and tri (ydroxyet yl) ammonium salts. If the detergents according to the invention contain anionic surfactants, soaps, acyl sarcosmates or sulfated ethoxylated C ₈ -C ₂₂ alcohols are preferably used.

According to the invention, the detergents contain as a component

(111) 0.05 to 2.5, preferably 0.1 to 1.0% by weight of at least one of the cationic condensation products described above.

The invention further relates to post-washing agents which

(I) 1 to 50% by weight of a fabric softener for washing,

(II) 1 to 50% by weight of a nonionic surfactant and (111) 0.1 to 2.5% by weight of a polycationic condensation product

included, which is obtainable by condensation of

(a) Piperaz, 1-alkylpperazms with 1 to 25 C atoms in the alkyl group, 1, 4-dιalkylpιperazms with 1 to 25 C atoms in the alkyl group, 1, 4-Bιs- (3-ammopropyl) -piperazine, 1 - (2-Ammoethyl) piperazm, 1- (2-hydroxyalkyl) pιperazmen with 2 to 25 carbon atoms in the alkyl group or by heating triethanolamine or triisopropanolamine in the presence of acid

Catalysts and quaternization of the condensation products with C4 to C ₂ 5-alkyl imidazoles, imidazole, Cχ ~ to C ₂ 5-alkyl imidazoles or mixtures of the compounds mentioned with (b) alkylenedihalides, epihalohydrene and / or bis-epoxides

in the molar ratio 1: 0.8 to 1: 1.1 and optionally Quater ^¬ the condensation products discrimination with C4 - to

C ₂ 5-Alkylιerungsmιtteln, or by heating triethanolamine or triisopropanolamine in the presence of acidic catalysts and quaternization of the condensation products with C ₄ - to C25 "alkylating agents.

The washing post-treatment agents contain as component (1) 1 to 50, preferably 2.5 to 30% by weight of a fabric softener for washing. Suitable fabric softeners are, for example, quaternary ammonium compounds, polysiloxanes and nonionic cellulose ether, cf. for example EP-A-0 239 910, EP-A-0 150 867 and EP-A-0 213 730. Fabric softeners for laundry are, for example, dialkyldimethylammonium chlorides and alkylimidazolium methyl sulfates.

The laundry aftertreatment compositions contain, as component (ii), for example 1 to 50, preferably 2 to 20% by weight of a nonionic surfactant. Nonionic surfactants have already been described as component (i) in the composition of the detergents. The compounds mentioned there can also be used in laundry aftertreatment agents. The laundry aftertreatment agents contain as component (iii) 0.1 to 2.5, preferably 0.2 to 2.0% by weight of a polycationic condensation product as a color-fixing additive. These condensation products have already been described above.

The percentages in the examples mean% by weight.

Examples

The following cationic condensation products were used:

Polymer 1

Polycationic condensation product obtained by condensing piperazine with epichlorohydrin in a molar ratio of 1: 1 and

Quaternization of the reaction product with 1.4 mol equivalent benzyl chloride, based on piperazine, was prepared. The molecular weight was 3500 (determined by viscosity measurement in 1% strength aqueous solution at 20 ° C.). The cationic condensation product was in the form of a 24% aqueous solution.

Polymer 2

Polycationic condensation product, which was prepared by reaction of imidazole, piperazine and epichlorohydrin in a molar ratio of 1: 1: 2. The aqueous polymer solution contained 50% of the cationic condensation product, which had a molecular weight of 2200.

Polymer 3

Polycationic condensation product, which was prepared by reaction of imidazole and epichlorohydrin in a molar ratio of 1: 1 in aqueous solution. The polymer solution contained 50% of the condensation product, which had a molecular weight of 1400. Polymer 4

Polycationic condensation product which was prepared by heating triethanolamine in the presence of 0.5% by weight of hypophosphorous acid to 230 ° C. and quatermination with 0.8 mol equivalents of benzyl chloride. The molecular weight was 4500.

In order to test the color-reducing and color-transferring inhibiting effects of the cationic condensation products described above, the above-mentioned polymers were added to a commercially available fabric softener. The dyed fabric was rinsed with an aqueous softener solution at 25 ° C., rinsed with tap water, dried and ironed. The dyed fabrics pretreated in this way were then washed together with white test fabrics with a commercial detergent. The color strength of the white test fabric compared to the previously measured color strength was determined according to A. Kud, Seifen, Ole, Fette, Wwachs, Volume 119, pages 590 to 594 (1993). The respective color strengths of the staining of the white fabric were determined and from this the color transfer-inhibiting effect of the polymers 1 to 4 was determined.

To test the color loss of the colored test fabric, the treatment with fabric softener, subsequent washing and drying was repeated 5 times with the same color fabric. The color loss according to the formula was determined from the color strength of the color fabric before the first wash and the color strength after the 5th wash.

Strong color _(L r of the laundry) "color strength _(na ch of the laundry)

Color loss [%] = 100

Strong color _(L r of the laundry)

Test conditions:

Apparatus: Launder-o-meter

Color fabric: 1.0 g dyed cotton fabric,

Colorings with direct red 212 (3% dye) and

Direct blue 71 (0.8% dye)

White fabric: 2.5 g cotton fabric Pretreatment:

Fabric softener: Softlan ^® (manufacturer Colgate Polmolive) Use concentration of the polymers in the fabric softener: 2.0%

Amount of fabric softener: 1.75 g / 1 temperature (winding): 30 ° C winding time: 10 mm.

Laundry:

Detergent: Ajax ^® (manufacturer Colgate-Palmolive)

Quantity: 5.0 g / 1

Amount of liquor: 250 g

Washing temperature: 40 ° C Water hardness: 14.5 ° dH

Ca / Mg ratio: 4.0: 1.0

Washing time: 30 mm.

example 1

Polymer 1 was added to the fabric softener indicated above in an amount of 2%. The% dye transfer inhibiting effect of a fabric dyed with Direct Blue 71 was 99%. The color loss m% of the fabric dyed with Direct Blue 71 was 7.2% after 5 washes with the detergent specified above.

Comparative Example 1

Example 1 was repeated, but the absence of Po ^¬ worked lymer first The effect farbubertragungsmhibierende be ^¬ was 0%. The color loss after 5 washes for a fabric dyed with Direct Blue 71 was 20.3%.

Example 2

Example 1 was repeated with 2% polymer 4. The farbubertra ^¬ gungsmhibierende effect was 98%, the color loss Con t ι, 4%. Table 1

Trials with direct red 212

The effect of polymers 1 to 4 in various detergent compositions is illustrated in the following examples. The following test conditions were selected for this:

Apparatus: Launder - o-meter

Color fabric: 1.0 g dyed cotton fabric,

Staining with direct red 212 [staining with 3% dye) and direct blue 71 (staining with 0.8% dye)

White fabric: 2.5 g cotton fabric

Detergent composition in% (detergent A):

Cι ₃ / Ci ₅ -oxo alcohol ethoxylate with 10 EO 6.3

Zeolite A 55.0

Na carbonate 6.0 Na citrate 9.0

Copolymer of 70% acrylic acid and

30% maleic acid, molecular weight 70000, Na salt 4.0

Carboxymethyl cellulose 0.5

Sodium sulfate 5.8 water per 100 Laundry:

Detergent: Detergent A

Quantity: 5.0 g / 1

Amount of liquor: 250 g

Washing temperature: 60 ° C

Water hardness: 14.5 ° dH

Ca / Mg ratio: 4.0: 1.0

Washing time: 30 min.

Table 2

The color transfer-inhibiting effect was determined after one wash, and the color detachment after 5 washes, in each case on the basis of the color strengths of the white fabric or of the color fabric as described for use in the fabric softener.

The results with the polymers 1 and 4 to be used according to the invention show that the polymers have a very good color transfer inhibiting effect in anionic surfactant-free detergents. In addition, the color separation from the dyed fabrics is significantly reduced, which drastically reduces fading of colored textiles during washing.

In order to test the effectiveness of the cationic condensation products to be used according to the invention in different detergent formulations, the color transfer-inhibiting effect was tested in various heavy duty detergents and color detergents (Tables 3 and 4). In the exemplary formulations, the polycationic condensation products show a marked reduction in color transfer and a reduction in color separation Table 3

Abbreviations:

TAED tetraacetylethylene diamm

SKS-6 layered silicate sodium salt (manufacturer Hoechst)

EO ethylene oxide

AS / MS (70000) = acrylic acid / maleic acid copolymer in a weight ratio of 70:30 molar mass M _w = 70,000 AS / MS / VAc (40000) = acrylic acid / maleic acid / vinyl acetate terpolymers in a molar ratio of 40:10:50 with molar mass M _w = 40,000

Sokalan ^® HP 22 commercially available graft polymer of Vmyl - acetate to polyethylene glycol (poly target -release ^¬ mer)

Korantm ^® SH commercially available oleoyl sacosmat (acid form)

In Table 4, the composition is passed from color detergents been ^¬ that erfmdungsgemaß to use cationic Kondensati ^¬ modulation products contain.

Table 4

Abbreviations see Legend for table 3

Claims

claims

1. Use of polycationic condensation products that can be obtained by condensing

(a) Piperaz, 1-alkylpperazms with 1 to 25 C atoms in the alkyl group, 1, 4-dιalkylpιperazms with 1 to 25 C atoms in the alkyl group, 1, 4-Bιs- (3-amopropyl) piperazm , 1- (2-Ammoethyl) piperazm,

1- (2-Hydroxyalkyl) pιperazιnen with 2 to 25 carbon atoms in the alkyl group, imidazole, C ~ to C ₂₅ -C - alkylimidazoles or mixtures of the compounds mentioned

(b) alkylene dihalides, epihalohydrms and / or bis-epoxides

in a molar ratio of 1: 0.8 to 1: 1.1 and optionally quaternization of the condensation products with C ₄ to C ₂₅ alkylating agents

or by heating triethanolamine or triisopropanolamine in the presence of acidic catalysts and quaternizing the condensation products with C ₄ to C ₂₅ alkylating agents as color transfer-inhibiting and color change-reducing additive to detergents and post-treatment agents.

2. Use according to claim 1, characterized in that one uses condensation products which are obtainable by condensation of

(a) Piperazm, 1- (2-hydroxyethyl) piperazm, 1- (2-ammethyl) piperazm, imidazole, C ₁ -C ₃ -alkyl imidazoles or mixtures of the compounds mentioned

(b) 1,2-Dιchlorethan, 1, 2-Dιchlorpropan, 1, 3-Dιchlorpropan, 1, 4-Dιchlorbutan, epichlorohydrin, bis-epoxibutan or mixtures of the compounds mentioned

and if necessary

(c) Quaternization of the condensation products with Cg to C2 ₂ ~ alkyl halides or Cs to C ₂₂ ^_E P ^oxl or by heating triethanolamine or triisopropanolamine with acidic catalysts and quaternizing the condensation products with C ₆ -C ₂₂ alkyl halides or Cs -C ₂ epoxides.

3. Use according to claim 1 or 2, characterized in that one uses for the quaternization of the condensation products as compounds of group (c) benzyl chloride and / or styrene oxide.

4. Use according to claim 1 or 2, characterized in that the condensation products have a molecular weight of 500 to 100,000.

5. Use according to claim 1 or 2, characterized in that the condensation products have a molecular weight of 1,000 to

Have 50,000.

6. Use according to one of claims 1 to 5, characterized in that the degree of quaternization of the amino groups of the condensation products is at least 25%.

7. Use according to one of claims 1 to 6, characterized in that the degree of quaternization of the amino groups of the condensation products is at least 50%.

8. Use according to one of claims 1 to 7, characterized labeled in ^¬ characterized in that the degree of quaternization of the amino groups of the condensation products is from 70 to 100%.

9. Detergent, characterized in that it

(i) 1 to 50 wt .-% of at least one nonionic Ten ^¬ sids,

(ii) 0 to 4.0% by weight of an anionic surfactant and (iii) 0.05 to 2.5% by weight of at least one polycationic condensation product

contains, which is obtainable by condensation of

(a) Piperazine, 1-alkylpiperazines with 1 to 25 carbon atoms in the alkyl group, 1,4-dialkylpiperazines with 1 to 25 carbon atoms in the alkyl group, 1,4-bis (3-aminopropyl) piperazine , 1- (2-aminoethyl) piperazine, 1- (2-hydroxyalkyl) piperazines with 2 to 25 carbon atoms in the alkyl group, imidazole, Ci to C ₂₅ alkylimidazoles or mixtures of the compounds mentioned (b) alkylene dihalides, epihalohydrates and / or bis-epoxides

in a molar ratio of 1: 0.8 to 1: 1.1 and, if appropriate, quaternizing the condensation products with C ₄ - to C ₂₅ -alkylating agents or by heating triethanolamine or triisopropanolamine in the presence of acidic catalysts and quaternizing the condensation products with C ₄ - bis C25 alkylating agents

10. laundry treatment agent, characterized in that it

(i) 1 to 50% by weight of a fabric softener for laundry, (ii) 1 to 50% by weight of a nonionic surfactant and (iii) 0.1 to 2.5% by weight of a polycationic

Contains condensation product, which is obtainable by condensation of

(a) Piperazine, 1-alkylpiperazines with 1 to 25 carbon atoms in the alkyl group, 1, 4-dialkylpiperazines with 1 to

25 C atoms in the alkyl group, 1, 4-bis (3-aminopropyl) piperazine, 1- (2-aminoethyl) piperazine, 1- (2-hydroxyalkyl) piperazines with 2 to 25 C atoms in the Alkyl group, imidazole, C ~ to C ₂₅ -C alkylimidazoles or mixtures of the compounds mentioned

(b) alkylene dihalides, epihalohydrins and / or bis-epoxides

in a molar ratio of 1: 0.8 to 1: 1.1 and optionally

Quaternizing the condensates with C ₄ - to C ₂ 5 -Alky ^¬ lierungsmitteln or by heating triethanolamine or triisopropanolamine in the presence of acidic catalysts and quaternizing the condensates with C ₄ - to C ₂₅ "Al y lierungsmitteln.