JPH0247363A - Soft-finishing agent for clothes - Google Patents

Abstract

PURPOSE:To obtain a finishing agent imparting various fibers with softness and antistaticity and having excellent storage stability by compounding a specific quaternary ammonium salt, a polymer or oligomer having specific skeleton and specific nonionic surfactant at specific wt.%. CONSTITUTION:The objective soft-finishing agent contains, as essential components, (A) 3-20wt.% of a quaternary ammonium salt having one or more alkyl or alkenyl groups, (B) 0.001-0.1wt.% of a compound having the skeleton of formula (R is 1-12C alkylene) in the molecule and having a molecular weight of 200-3,000 and (C) 0.3-2.0wt.% of a nonionic surfactant having polyoxyalkylene group.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a fabric softener, and more particularly to a liquid fabric fabric softener with excellent fluidity and stability.

[Conventional technology]

When clothes are repeatedly worn and washed, the fiber treatment agent may be washed off, or the mu itself may become stiff due to deterioration, resulting in an undesirable feel. Therefore,
In recent years, fabric softeners that can impart flexibility and antistatic properties to fibers have been widely used in many households.

Currently, the commercially available household fabric softeners are:
Most of them are cationic surfactants having 1 to 2 long-chain alkyl groups in one molecule, especially those containing di(hardened beef tallow alkyl) dimethylammonium salt as a main component.

These soft bases containing quaternary ammonium salts as a main component are sparingly soluble in water, and are usually produced in the form of a 3 to 20% by weight aqueous dispersion or emulsion.

Such fabric softeners are generally produced by adding and dispersing a liquid quaternary ammonium salt in heated water, but they tend to thicken during or after production. In particular, when stored repeatedly at high and low temperatures or when dispersed at high concentrations, there is a marked tendency for thickening, which poses a problem in storage stability. To solve this problem, we have formulated water-soluble cationic activators, or anti-gelling agents such as higher alcohols, ethylene oxide adducts of alkylphenols, lower alcohols, ethylene glycol, urea, water-soluble organic salts, and inorganic salts. Although studies have been made to incorporate low-temperature stability improvers, the effects have not yet been sufficient.

[Means for solving problems]

Under these circumstances, the present inventors conducted intensive research to solve the above-mentioned problems, and as a result, completed the present invention.

That is, the present invention provides the following components (a), (b) and (
The present invention provides a fabric softener with excellent storage stability, which is characterized by containing component c) as an essential component.

(a) Quaternary ammonium salts having one or more alkyl or alkenyl groups) Compounds with a molecular weight of 200 to 3,000 that have a skeleton represented by the following formula (I) in the molecule (where R has 1 to 300 carbon atoms)
(c) Nonionic surfactant having a polyoxyalkylene group (a) Quaternary ammonium salt compounds that can be used as the component (a) include the following (A-1) to (A-5). There is something like.

i) Quaternary ammonium salt represented by the following formula (A-1) or (A-2) ii) Imidazolinium salt represented by the following formula (A-3) iii) Following formula (A-4) or amide ammonium salt represented by (A-5) (A-47 [wherein R,, R,, R6 and R7 each have 1 carbon number
0 to 24 alkyl group, alkenyl group, or β-hydroxyalkyl group, and R3, R, and R5 are each an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms, a benzyl group, or -(c2H,O), - H (however, n
is 1 to 3), m is 2 or 3, and X represents a halogen or a monoalkyl sulfate group having an alkyl group having 1 to 3 carbon atoms. ] Specifically, dodecyltrimethylammonium chloride, hexadecyldimethylethylammonium bromide, octadecyltrimethylammonium chloride, didodecyldimethylammonium chloride, dihexadecyldimethylammonium chloride, dioctadecyldimethylammonium chloride, dihydrogenated tallow alkyl dimethyl chloride. Ammonium, dihydrogenated palm oil alkyldimethylammonium chloride, bis(
β-hydroxystearyl) diethylammonium chloride, 2-heptadecyl-1-methyl-1-C(2-
octadecanoylamino)ethyl]imidazolinium methylsulfate, di[(2-dodecanoylamino)ethylcdimethylammonium methylsulfate, di[
Examples include (2-octadecanoylamine) ethylcomethylethylammonium ethyl sulfate or a mixture of two or more thereof.

The compound used as component (b) is the above-mentioned -Momona (I
) is a polymer or oligomer that has a skeleton shown in the molecule as a repeating unit, and has a molecular weight of 200 to 30.
00, preferably 500-2000. The above formula (I
) in which R is an alkylene group having 1 to 12 carbon atoms, preferably an alkylene group having 3 to 6 carbon atoms, may be suitably used.

These compounds are available from ICI Japan.
It is commercially available under the brand name Roxel.

The compound (b) is preferably neutralized with a protonic acid such as acetic acid, lactic acid, or hydrochloric acid before use.

The nonionic surfactant as component (c) has 6 carbon atoms.
One or more alkylene oxide adducts of alcohols or amines or fatty acids having ~24 saturated or unsaturated linear or branched hydrocarbon groups, which essentially include ethylene oxide, are used.

The number of moles of ethylene oxide added is preferably 5 to 50 moles.

In terms of stability and practical performance of the aqueous dispersion, the amounts of each essential component used are 3 to 20% by weight for component (a), 0.001 to 0.1% by weight for component (c), and 0.001 to 0.1% by weight for component (c). ) component is 0.3 to 2
．． It is preferable to contain 0% by weight.

Although it is not clear why the storage stability is significantly improved in the present invention, the (a) and (c) components
It is believed that this modifies the surface state of the component quaternary ammonium compound particles, improves their dispersibility in water, and prevents component (a) itself from agglomerating due to temperature changes.

The softening agent of the present invention is as described above (components (a), (b), and (c) are essential components, but includes esters having long-chain alkyl groups or alkenyl groups, acids, alcohols, and amines, An imidacilline compound etc. can also be used in combination.

In addition, lower alcohols having 3 or less carbon atoms, polyols having 2 to 3 carbon atoms, inorganic electrolytes, fragrances, pigments, etc., which are conventionally blended in general softeners, may be used in combination without any problem.

〔Effect of the invention〕

The fabric softener of the present invention has sufficient flexibility and flexibility for various fibers.
It provides antistatic properties and has excellent storage stability against repeated high and low temperatures.

〔Example〕

The present invention will be specifically explained below with reference to Examples, but the present invention is not limited thereto.

Examples 1 to 5 and Comparative Examples 1 to 3 Fabric softener compositions having the compositions shown in Table 1 were prepared, fibers were treated by the method shown below, and their flexibility and storage stability were evaluated.

The fabric softeners used in the test are shown in the table (A) and (B).
.

It is an aqueous dispersion obtained by melting and mixing component (c) and other components at 60°C, then dropping the mixture into 50°C warm water (water: balance amount) under an appropriate stirring force, and cooling. .

<Evaluation of flexibility> (1) Processing method 2 kg of commercially available cotton towels and 1 kg of acrylic chassis were washed 5 times in 3.5° hard water using commercially available detergent Zab (manufactured by Kao Corporation, registered trademark). After removing the fiber treatment agent adhering to each fiber, the blended composition in Table 1 was treated at 25° C. for 1 minute with stirring at the treatment concentration listed in the table.

(2) Evaluation method The treated fabric was air-dried indoors and then left at 25° C. and 65% RH for 24 hours. The flexibility of these fabrics was evaluated.

<Evaluation of storage stability> The composition shown in Table 1 was dispersed in water, and perfume,
Softener composition 200- containing dye and antifoaming agent at 50°C
After storage for 2 days, store at -20°C for 1 day. This storage cycle was repeated 10 times, and the viscosity was measured at 30°C.

As shown in Table 1, by using the compound of the present invention, an effect that satisfies both flexibility and storage stability can be obtained.

Claims (1)

[Scope of Claims] 1. A liquid clothing finishing agent characterized by containing the following components (a), (b), and (c) as essential components. (a) A quaternary ammonium salt having one or more alkyl or alkenyl groups (b) A compound with a molecular weight of 200 to 3,000 that has a skeleton represented by the following formula (I) in the molecule ▲ A mathematical formula, chemical formula, table, etc. Yes▼(I) (However, R is an alkylene group having 1 to 12 carbon atoms) (c) Nonionic surfactant 2 having a polyoxyalkylene group (b) A compound whose component is neutralized with an acid A fabric softener according to claim 1. 3. A patent in which the content of essential components is 3 to 20% by weight for component (a), 0.001 to 0.1% by weight for component (b), and 0.3 to 2.0% by weight for component (c). A fabric softener according to claim 1 or 2.