JPS61275473A - Fiber treating composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to textile treatment compositions. More particularly, the present invention relates to textile treatment compositions suitable for use in the rinse cycle during textile laundering operations that impart a softening/antistatic effect to the fibers;
It is characterized by excellent softening, water dispersibility and shelf life after long-term storage at temperatures of -normal).

Textile treatment compositions suitable for imparting softening and antistatic effects to fibers during laundering are well known in the art and have found wide commercial use.

Traditionally, fiber softening compositions with added rinse agents contain as active ingredients substantially water-insoluble cationic substances with λ long alkyl chains. Representative of such materials are di-hard tallow dimethylammonium chloride and imidazolinium compounds substituted with two tallow groups. These materials are usually prepared in the form of dispersions in water, and such aqueous dispersions can have more than about 10% cationic softener without encountering severe product viscosity and storage stability problems. It is generally impossible to prepare. More concentrated dispersions of softening substances are described in European Patent Application No. θooo aob and British Patent No. 140/
Although such compositions may be prepared by including therein a nonionic additional softening material as described in No. In addition, product viscosity and stability problems become increasingly uncontrollable in thicker aqueous dispersions, and softening activators in the range of about Effectively limit the commercial scope of application to the standard.

U.S. Patent No.
A concentrated liquid fiber softener containing IO% water-miscible organic solvent is disclosed.

U.S. Patent No. 320 discloses a fibrous material,
The use of acid salts of certain imidazoline derivatives for softening, eg cotton or paper, is disclosed. The treatment baths used for textile treatment contain 0.00/% to 7% of the acid salts of imidazoline derivatives. For shipment, it is said to be desirable to keep the material in a low molecular weight aliphatic alcohol to prevent freezing.

US Patent No. 2.99! Other more recent patents than F.320 disclose the use of acid salts of imidazoline derivatives for fiber softening. however,
According to the state of the art, quaternary ammonium salts are preferred over, for example, acid salts of acyclic tertiary amines or cyclic amines in terms of fiber softening.

It is therefore an object of the present invention to provide liquid fiber softening compositions that can be prepared both as dilute and concentrated aqueous dispersions without requiring significant amounts of organic solvents. The composition of the present invention can be used both at high temperatures and at temperatures below room temperature.
Furthermore, it has excellent stability even under long-term storage conditions. These compositions exhibit excellent softening, antistatic and fiber rewetting properties over a wide range of fiber types.

SUMMARY OF THE INVENTION The present invention provides stable aqueous compositions having two higher alkyl groups, each having from g to 30 carbon atoms, comprising (a) and (b).

(IL) an amine selected from the group consisting of di(higher alkyl)cyclic amines of formula I herein and mixtures thereof; and (b) a conventional quaternary ammonium salt softener. A compound selected from the group.

DETAILED DESCRIPTION OF THE INVENTION The compositions of the present invention provide stable aqueous dispersions of certain cyclic amines (even at high amine concentrations) and common di(higher alkyl) quaternary ammonium salts using significant amounts of organic solvents. It is based on the discovery that it can be prepared without

&) Amines The amines used in the compositions of the present invention are selected from the group consisting of:

(Compound formula of IJ formula 1 ■ where n is co, 3 or l preferably -, R1 and 82
are independently 08-C3o alkyl or alkenyl, preferably C11-C2□ alkyl, more preferably C4
5-C18 alkyl, or a mixture of such alkyl groups. An example of such a mixture is coconut oil, which is "soft" (non-hardened).
) Alkyl groups obtained from tallow and hardened tallow. Q is CH, CH2, NL
or N, preferably N. X is -R5 is H or C1-C4 alkyl, preferably H, R4
is a divalent 01-c3 alkylene group or (C2H40)
n, where m is the number of lnogg. or X is R4
It is.

The compositions of the present invention contain amines/% by weight, preferably 1 to 1%, more preferably 1 to 1% by weight.

Detergent carryover, which may occur during the laundry process, tends to have an adverse effect on the softening performance of detergent-loaded softeners, especially under conditions prevalent in American washing machines. It has been discovered that amines of formula I are less sensitive to detergent carryover than, for example, sitalodimethylammonium chloride.

As a second component, the dispersions according to the invention contain conventional di(higher alkyl)quaternary ammonium salt softeners. "Higher alkyl" as used herein with respect to quaternary ammonium salts refers to an alkyl group having g to 3θ carbon atoms, preferably /l to - carbon atoms. Examples of salts are ()) acyclic quaternary ammonium salts with the formula where R2
is an acyclic aliphatic C15-C2□ hydrocarbon group, R3 is C1
~C4 saturated alkyl or hydroxyalkyl group, R4
is selected from R2 and R6, and human is an anion.

(It) diamide quaternary ammonium salt having the following formula, where R4 is an acyclic aliphatic CI5-C21 hydrocarbon group;
R2 is a covalent alkylene group having 1 to 3 carbon atoms,
R5 and R8 are C1 to C4 saturated alkyl or hydroxyalkyl groups, and A- is an anion.

(Ill) Diamidoalkoxylated quaternary ammonium salt having the formula where n is equal to from 1 to about 5 and Rll R21R5
and A- are as defined above.

GV) Quaternary imidazolinium compound.

including.

Examples of component (1) are well-known dialkyldimethylammonium salts, such as sitalodimethylammonium chloride,
Citalo dimethyl ammonium methyl sulfate, di(hydrogenated tallow) dimethyl ammonium chloride, distearyl dimethyl ammonium chloride, diphenyl dimethyl ammonium chloride (d%b*hsndyl
d1m@thy1mmmonlumchloride)
It is.

An example of component (1) is methylbis(tallowamidoethyl) (
2-Hydroxyethyl)ammonium methyl sulfate and methylbis(hydrogenated tallowamidoethyl) (λ
-hydroxyethyl) ammonium methyl sulfate, R1 is an acyclic aliphatic C15-C17 hydrocarbon group, and R
2 is an ethylene group, R5 is a methyl group, R8 is a hydroxyalkyl group, and A is methyl sulfate anio/. These substances are manufactured by Sielex Chemical Company (S.
her@xChemical Company as Varisoft® 222 and Varisoft (1)/10, respectively.

GV) example is! -Methyl-/-Tallowamidoethyl-Kotaloimidazolinium methylsalt 71- and l-Methyl/l/-/- (Hydrogenated tallowimidoethyl)
- Methyl sulfate.

The quaternary ammonium salt (b) preferably comprises from / to 3%, more preferably from / to 1% by weight of the composition of the invention.

The weight ratio of amine (,) to quaternary ammonium salt (b) is 1
It is in the range of 0:/ to 1:10, preferably 3:/ to 1:3.

Di(higher alkyl)imidazolinium compounds are preferred for use in the present invention, particularly /-(lower alkyl)-7-(higher alkyl)amidoethyl-co(higher alkyl)imidazolinium compounds, where "lower alkyl" means an alkyl having 1 to 2 carbon atoms, and "higher alkyl" means an alkyl having 1 to n carbon atoms.

The dispersion further includes a Brønsted acid with a pKa value of 6 or less.

The amount of acid depends on the pH of the dispersion after stirring! The amount is preferably no greater than Da, and more preferably within the range of A to Da. Typically the amount of acid is from 1 to 30 t, preferably from 1 to 30 q6, and most preferably from 3 to 3 t, per weight of amine.

Examples of suitable acids include inorganic mineral acids, carboxylic acids, especially low molecular weight i 01-C5 carboxylic acids, aromatic carboxylic acids such as benzoic acid, alkylsulfonic acids.

Suitable inorganic acids are HCI, HBr, H2SO4,
Contains HNO3 and H3PO4. Suitable organic acids include benzoic acid, formic acid, acetic acid, methylsulfonic acid and ethylsulfonic acid. Preferred acids are phosphoric acid, formic acid and methylsulfonic acid.

The compositions of the present invention can be prepared without the use of any organic solvents. However, the presence of organic solvents (eg, low molecular weight water-miscible aliphatic alcohols) does not interfere with the storage stability, viscosity or softening properties of the compositions of the invention.

Typically, amines are available from bulk drug suppliers in solid form as solutions in organic solvents such as isopropanol. There is no need to remove such solvents to make the compositions of this invention. In fact, additional solvent is added if this is deemed necessary.

However, compared to water, organic solvents are expensive and difficult to handle due to their flammability and sometimes toxicity. Therefore, it is desirable to formulate the present compositions with low levels of organic solvent, ie, less than 10%, preferably less than flathead.

e) Optional silicone compounds The compositions of the present invention may optionally contain an aqueous emulsion of a predominantly linear polydialkyl or alkylarylsiloxane. Here is an alkyl group! Suitable silicones which can be fully or partially fluorinated have carbon atoms ranging from 100 to ioo, ooo centistokes, preferably from 30 theta to t, ooo centistokes at 8°C.
Polydimethylsiloxane with a range of viscosities.

It has been discovered that the ionic charge characteristics of the silicone used in combination are important in determining both the degree of deposition and the flatness of the silicone distribution, and thus the properties of the fibers treated therewith. Ta.

Silicones with cationic properties exhibit a tendency towards increased deposition. Silicones that have been found to be valuable in providing fiber feel benefits have a predominantly linear character and are preferably polydialkylsiloxanes in which the alkyl group is most commonly methyl.

Such silicone polymers are commercially often prepared by emulsion polymerization using strong acid or strong alkaline catalysts in the presence of nonionic or mixed nonionic anionic emulsifier systems.

In the present invention, the optional silicone component includes silicones of cationic character defined as one of the following, and the siloxane has a viscosity at 8° C. of ioo to 100.0
00 C8.

(a) a predominantly linear di-C1-C alkyl, or 01-C5 alkyl, arylsilxane prepared by emulsion polymerization using a cationic surfactant as an emulsifier, (b) an alpha omega di quaternary qate
rnised) diC1-C5 alkyl, or C1-C
5 alkyl, aryl siloxane polymer, or (c) amino groups are substituted and quaternized, and the degree of substitution (d, s,) is from 0.00/ to o, i preferably 0.
/amino-functional di-C1-C5 in the range of 0.07g
It is an alkyl or alkylaryl siloxane polymer.

The weight ratio of siloxane to amine component in the composition of the invention is typically! i/ to /: 100, preferably 1 to /: 10.

Silicone components suitable for use in the present invention are more fully disclosed in British Patent No. 1.beta.

f) Optional nonionic material compositions optionally contain nonionic materials disclosed for use in softening compositions. Such nonionic materials and their usage levels are disclosed in U.S. Pat. Specific examples of sexual substances are glycerol esters (e.g. glycerol monostearate), fatty alcohols (e.g. stearyl alcohol)
and alkoxylated fatty alcohols. Nonionic materials, if used, account for 0.0% of the composition. ! 〜1
Levels in the range of 0% by weight are typically used.

To further improve the stability of the compositions herein and adjust their viscosity, these compositions can contain relatively small amounts of electrolytes. A highly preferred electrolyte is CaCl
It is 2. The Brookfield viscosity of a highly concentrated dispersion is
A relatively small amount of CaCl2 (i.e. i,oo ppm
) was found to be able to be reduced to less than 100 cp@. 7 The compositions of the present invention may optionally contain other ingredients known to be suitable for use as fabric softeners.

Other auxiliaries include fragrances, preservatives, fungicides, colorants, dyes,
Includes fungicides, stabilizers, brighteners and opacifiers. These adjuvants, if used, are typically added at their conventional levels. However, in the case of fiber treatment effects, that is, composition formulations used as fragrances,
These substances are added at higher than normal levels depending on the concentration of the product.

Examples I-IV The following composition is prepared.

,,/'- Example ■ Example ■ Example ■ Example ■ DTI') , 26% 10chi gchi
-DTDMAC2)/θtlb/2chi/Miyako PDMS5
)/% - Acid O,2%4>--o,llch5)Ca C12(PI)m)'θo go
θ 90θ /20θGMs6) 7% -- Stearyl alcohol - lthi-amine7) 70% gchi 5% 10thi fragrance
0.91% 0.9% o, qchi θ, 7%
water remainder remainder remainder 1)
Citalo-imidazolinium CI-'f/-tallow-amide ethyl-imidazolinium chloride) 2) Citalo dimethyl ammonium chloride 3) Polydimethylsiloxane, viscosity 500 centistokes 4) Formic acid 5) Methylsulfonic acid 6 ) Glycerol monostearate 7)/-Mero-amidoethyl-kotaroimidazoline Hydrolysis of the species comprising the citaroimidazolinium component is observed to occur during the operation. This has not been found to significantly affect the softening performance of the composition.

Example V - ■ The following example is prepared. Each one is 2.5 ~! It has a pH value in the range of .

DTDMAC,21,? ,? 7.0
1,=6 3. ri SPDMS21, 35 ta, 0 0,353 1, θ amine tei 0.
7.7 1,? ko, 3 das, θko HCI 0,24 za 0. KO30,/'II
Q,lIJ! rCaC120,00! r O0/
7-θ,/emulsifier o, i3. y'
o, ta O6θ35 θ,l fragrance/dye 0.
Kake+J O07!13 θ, Col θ, 7 Octopus water Up to 100% Up to 100 gg Up to 100% Up to 100% All formulations were expressed as weight percent of the composition.

i DTDMAC...Same as in Examples ■, ■, and ■ PDMS...Polydimethylsiloxane, viscosity θoocs 3, amine-1+ (J-C11-C18-amide ether)-rho C13-C17-alkyruda ,! Dihydro imidazoline; CAS Nannokuichi 72A23-
g2-6 Emulsifier - Hoechst's Sapogenat T 100'' as triisobutylphenol decaglycol ether
(Product name)

Claims (1)

[Scope of Claims] 1. (a) 1 to 40% of an amine selected from the group consisting of di(higher alkyl)cyclic amines of formula I as defined herein and mixtures thereof; and (b) di(higher alkyl)cyclic amines as defined herein; (higher alkyl) quaternary ammonium salts, comprising a compound selected from the group of (a) versus (b)
) is within the range of 10:1 to 1:10,
Stable aqueous dispersion. 2. The dispersion according to claim 1, wherein the weight ratio of (a) to (b) is in the range of 3:1 to 1:3. 3. Claims 1 to 3 containing from 2 to 35% amine
The dispersion liquid according to any one of Item 2. 4, amine is 1-(higher alkyl)amidoethyl-2-
4. The dispersion according to claim 1, wherein the dispersion is a (higher alkyl)imidazoline, and the higher alkyl represents an alkyl having 11 to 22 carbon atoms. 5. The dispersion aid is selected from 1-(lower alkyl)-1-(higher alkyl)amidoethyl-2-(higher alkyl)imidazolinium compounds, where lower alkyl represents an alkyl having 1 to 4 carbon atoms; Dispersion according to any one of claims 1 to 4, wherein higher alkyl represents an alkyl having 11 to 22 carbon atoms. Mainly linear di(C_1-C_5)alkyl, or C
further comprising an emulsion of a _1-C_5 alkylarylsiloxane, in which the alkyl groups can be partially or totally fluorinated and substituted with cationic nitrogen atoms, and the siloxane is The emulsion has a viscosity of at least 100 centistokes up to 100,000 centistokes, and the weight ratio of the siloxane content to the amine component of the emulsion is from 5:1 to 1:100.
Dispersion according to any one of claims 1 to 5, preferably in the range 2:1 to 1:10. 7. The dispersion according to claim 6, wherein the siloxane is polydimethylsiloxane. 8. As a dispersion aid,
8. Dispersion according to claim 1, further comprising from 1 to 50%, based on the weight of the amine, of a Brønsted acid with a pKa value not greater than 6. 9. Dispersion according to any one of claims 1 to 8, further comprising from 0.5 to 10% of a nonionic substance, preferably a glycerol ester, a fatty alcohol or an alkoxylated fatty alcohol.