JPH01132692A - Liquid softening detergent composition - Google Patents

Abstract

PURPOSE:To prepare the title compsn. which can impart excellent softness to clothes to be washed, particularly cottons, and prevent the clothes from yellowing due to repeated washing, and which comprises a nonionic surfactant, a cationic surfactant, a particular polymer compd., and water. CONSTITUTION:10-40wt.% nonionic surfactant selected from a higher alcohol ethoxylate having ethylene oxide added thereto in an amt. of 7-30mol in terms of average number of moles and an 8-20C alkyl group and a higher alcohol propoxyethoxylate having propylene oxide added thereto in an amt. of 1-3mol in terms of average number of moles and ethylene oxide added thereto in an amt. of 8-20mol in terms of average number of moles and an 8-20C alkyl group is mixed with 0.1-10wt.% cationic surfactant composed of a quaternary ammonium salt of formula I [wherein R1 is a 12-22C alkyl, alkenyl, or a hydroxyalkyl; R2-R3 are each CH3, C2H5, or benzyl; and R4 is (hydroxy)alkyl, alkenyl, or R2] and 0.1-10wt.% anionic synthetic polymer compd. composed of a COOH group-contg. synthetic polymer compd. (salt) with the balance being water.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a softening liquid detergent composition, and more specifically, it is capable of imparting excellent flexibility to general washable fabrics, and particularly to cotton. The present invention relates to a softening liquid detergent composition which imparts excellent flexibility and which can prevent yellowing that usually occurs after repeated washing.

It has been known that the use of cationic surfactants is effective in imparting good flexibility to textile products such as clothing when washing them. Since the use of anionic surfactants alone tends to yellow the fabric being washed, it has been proposed to use anionic surfactants in combination (for example, U.S. Pat.
No. 920,565, British Patent No. 1,329,42
Specification No. 9, JP-A-53-38794, JP-A-Sho 5
3-52799).

However, although these softening detergents that use anionic surfactants in combination are effective to some extent in preventing yellowing of washed fabrics, they lack the flexibility-imparting effect that cationic surfactants originally have. It has the disadvantage that it is accompanied by a decrease in

1j Introduction 2 JL Shin The present invention provides a liquid detergent composition that can impart excellent flexibility to washed fabrics, especially cotton, and can prevent yellowing caused by repeated washing. be.

Monthly 3B needle blue command.

The softening liquid detergent composition of the present invention has the following (A)
, CB) and (C) components.

(A) Higher alcohol ethoxylate having an alkyl group having 8 to 20 carbon atoms and having an average number of added moles of ethylene oxide of 7 to 30; and having an alkyl group having 8 to 20 carbon atoms and having an average number of added moles of propylene oxide is 1 to 3, and at least one nonionic surfactant selected from higher alcohol propoxy ethoxylates having an average added mole number of ethylene oxide of 8 to 20: 10 to 40 weight≦.

(B) 20.1 to 10% by weight of at least one cationic surfactant selected from quaternary ammonium salts represented by the following general formula (1).

(Each symbol in the formula represents the following.

R1: Alkyl group, alkenyl group or hydroxyalkyl group having 12 to 22 carbon atoms R2, R3: Methyl group, ethyl group or benzyl group R4: Alkyl group, alkenyl group, hydroxyalkyl group, methyl group, ethyl group or benzyl group x -: Anion) (C) At least one anionic synthetic polymer compound selected from synthetic polymer compounds having a carboxyl group and salts thereof = 0.1 to 10% by weight.

The present invention will be explained in more detail below.

As the nonionic surfactant of component (A), higher alcohol ethoxylates or higher alcohol propoxyethosylates represented by the following general formulas (II) and (m) are used.

R5-0+CH, -CH, -0÷QH-・-(II) (
R5: Alkyl group having 8 to 20 carbon atoms Ω: Indicates the average number of moles added, 2 = 7 to 30) (R6: Alkyl group having 8 to 20 carbon atoms n+, n: Indicates the average number of moles added, m = 8 ~20,n
= 1 to 3) In the above higher alcohol ethoxylate, if the average number of added moles of ethylene oxide (12) is less than 7, the flexibility imparting effect of the composition will decrease, while if it exceeds 30, the foaming power of the composition will decrease. decreases.

In the higher alcohol ethoxylate, it is particularly preferable that R1 in the general formula (■) is an alkyl group having 9 to 15 carbon atoms.

Higher alcohol ethoxylates have, for example, 8 to 8 carbon atoms.
It can be obtained by condensing 20 primary or secondary alcohols with polyoxyethylene having an average degree of polymerization of 7 to 30.

In the higher alcohol propoxyethoxylate of general formula (III), the addition order of ethylene oxide and propylene oxide is not particularly limited, and these may be carried out by block addition polymerization, reverse block addition polymerization, or random addition polymerization. .

In the higher alcohol propoxyethoxylate, it is particularly preferable that R6 in the general formula (III) is an alkyl group having 9 to 15 carbon atoms.

The nonionic surfactant as component (A) can be used alone or in combination of two or more, and is present in the liquid cleaning composition of the present invention in an amount of 10 to 40% by weight.

Preferably, it is blended in an amount of 20 to 30% by weight. If this amount is less than 10% by weight, it will be difficult to uniformly disperse the complex of the cationic surfactant (B) component and the anionic polymer compound (C) component. On the other hand, if the amount exceeds 40% by weight, the flexibility imparting effect of the liquid detergent composition of the present invention will be reduced.

As the cationic surfactant of component (B), a quaternary ammonium salt represented by the general formula (R) is used.

(Each symbol in the formula represents the following.

R: alkyl group, alkeni group or hydroxyalkyl group having 12 to 22 carbon atoms R,, R,: methyl group, ethyl group or benzyl group R4 = alkyl group, alkenyl group, hydroxyalkyl group, methyl group, ethyl group or benzyl group x-: anion) R in general formula (1) has 16 to 20 carbon atoms;
Alkyl groups and alkenyl groups are preferred, and tallow alkyl groups having 16 to 20 carbon atoms are particularly preferred. Also X-
Preferred examples include halogen ions such as chloride ions, bromide ions, and iodine ions.

Specific examples of the cationic surfactant as component (B) include:
Lauryl trimethyl, myristyl trimethyl, palmityl trimethyl, stearyl trimethyl, oleyl trimethyl, hardened or unhardened tallow alkyl trimethyl, dilauryl dimethyl, simiristyl dimethyl, civalmityl dimethyl, dioleyl dimethyl, dihardened or unhardened alkyl dimethyl, dioleyl Dimethyl.

Salts such as chloride, bromide, iosito, methosulfate, and ethosulfate of each quaternary ammonium such as di-hardened or unhardened beef tallow alkyl diethyl, hardened or unhardened beef tallow alkyl dimethylbenzyl, and the like can be mentioned.

The cationic surfactant component (B) can be used alone or in combination of two or more, and Q is 1 to 10% by weight in the liquid cleaning composition of the present invention.

Preferably, it is blended in an amount of 3 to 6% by weight. This blending amount is 0.
If it is less than 1% by weight, the effect of imparting flexibility to the liquid detergent composition will be low, while if it exceeds 10% by weight, even if the anionic synthetic polymer compound of component (C) is added, yellowing of the cloth to be washed will occur. It becomes difficult to prevent.

As the anionic synthetic polymer compound of component (C), a synthetic polymer having at least one of a carboxyl group and a carboxylmethyl group or a salt thereof is used, and the degree of polymerization thereof is preferably 5 to s, ooo, more preferably 10 to 1,000.

Specific examples of the anionic synthetic polymer compound of component (C) include polyacrylic acid, polyfumaric acid, polymaleic acid, polyitaconic acid, polycitraconic acid, poly-α-hydroxyacrylic acid; maleic anhydride-ethylene copolymer. , maleic anhydride-alkylene or isoalkylene copolymers such as maleic anhydride-butylene copolymer, maleic anhydride-butadiene copolymer, maleic anhydride-isobutylene copolymer; maleic anhydride-acrylic acid ester copolymer coalescence, maleic anhydride-vinyl acetate copolymer,
Maleic anhydride-styrene copolymer, maleic anhydride-
Maleic anhydride copolymers such as methyl vinyl ether copolymers or their hydrolysates; poly-β-ketocarboxylic acid itaconic acid-maleic acid copolymers, itaconic acid-acrylic acid copolymers, itaconic acid-ethylene copolymers Examples include copolymer, itaconic acid-aconitic acid copolymer, methaconic acid-fumaric acid copolymer, and malonic acid-methylene copolymer.

Further, these polymer compounds can also be used as salts of alkali metal alkanol-substituted ammonium and the like.

Component (C) is a heptanionic synthetic polymer compound.

They can be used alone or in combination of two or more, and are blended in the liquid cleaning composition of the present invention in an amount of 0.1 to 10% by weight, preferably 1 to 5% by weight. If the amount is less than 0.1% by weight, yellowing of the washed fabric cannot be sufficiently prevented, while if it exceeds 10% by weight, the softening effect will be significantly reduced.

The softening liquid detergent composition of the present invention includes the above-mentioned (A).
, (B), and (C), other nonionic surfactants may be blended within the range that does not impair the purpose of the present invention. Such nonionic surfactants include, for example, higher fatty acid alkanolamide or its alkylene oxide adduct, long chain type (C12~,
4) Examples include tertiary amine oxide.

In addition, other optional ingredients may be added as desired, such as lower or polyhydric alcohols, organic carboxylates, viscosity modifiers such as lower alkylbenzene sulfonic acids; sequestering agents such as ethylenediaminetetraacetic acid, citric acid or its salts; or fluorescence enhancers. Whitening agents, pigments, fragrances, antioxidants, emulsifiers, bacteriostatic agents, enzymes, etc. can be added.

The reason why the liquid detergent composition of the present invention can prevent yellowing of washed fabrics without impairing the original softening effect of the cationic surfactant is not clear, but When the cycle of (C
Since yellowing is reduced during washing when the anionic synthetic polymer compound of component This is thought to be because even if iron colloids in the water adhere, they fall off together with this complex during cleaning.

According to the softening liquid detergent composition of the present invention, specific (A) nonionic surfactant, (B) cationic surfactant, and (C) anionic synthetic polymer compound. Cotton fibers, protein fibers such as silk and wool, and acrylic fibers, which are usually washed with heavy detergents, can be blended in specific proportions.

It exerts a biased flexibility imparting effect on synthetic fibers such as nylon, and can effectively prevent the occurrence of yellowing during repeated washing.

The composition of the present invention is useful as a liquid heavy detergent composition with a softening effect, and can also be used as a light detergent.

Hereinafter, the present invention will be explained in more detail with reference to Examples.
Prior to this, evaluation methods used in Examples will be shown.

(1) Evaluation method of flexibility imparting effect In a small reversible washing machine with a capacity of about 10Q, the washing liquid was washed with 5 floods and the bath ratio was 3.
After washing for 10 minutes with a cotton towel cloth so that the weight is 0 times, dehydrate it, rinse twice with tap water at 5℃, dry it in the shade, and then store it in a constant temperature room (25℃, 65%R).
H) was left for 2 days. This cleaning cloth was subjected to sensory evaluation by 10 panelists according to the following criteria, and the average value was taken as the softness evaluation score. An evaluation of 3 points or higher is required.

1 point...Not soft 2 points...A little soft 3 points...Very soft 4 points...Sufficiently soft 5 points...Very soft (2) Evaluation method for anti-yellowing effect As a cleaning device, Terg-0-Toaster (U,
S.

(manufactured by Testing), put a clean knitted cloth, adjust the bath ratio to 30 times, and heat at 25°C at 120 rpm for 10
Wash for minutes. As the cleaning liquid, 900 ffiΩ with a cleaning liquid concentration of 0.13% by weight was used, and rinsing was performed twice for 3 minutes with 900 m12 of water. In addition, 3°DH hard water containing 2 ppm of iron chloride was used for both washing and rinsing.

After washing, drying in the shade for one day, the above steps 6 or more were repeated 5 times, and 10 panelists followed the criteria below.

The knitted fabric was visually evaluated and the average was taken as the degree of yellowing.

Criterion O: No yellowing Δ: Slight yellowing X: Obviously yellowing Examples 1 to 8, Comparative Examples 1 to 14 Primary C1, alcohol as nonionic surfactant Ethoxylate (average number of added moles of ethylene oxide EO
p: 15) 28% by weight, used as a fluorescent agent in JP-A-56-
Cipanol 4409 (Ciba Ciba) described in Publication No. 8350
Made by Insulators Akchengesellschaft) 0.15% by weight
were used to keep these concentrations constant, and as shown in Table 1 below, dioctadecenyldimethylammonium chloride (ChaDC) was added as a cationic surfactant.
Furthermore, various synthetic polymer compounds or anionic surfactants are used as anti-yellowing agents, and these are blended in various proportions shown in Table 1, and the remainder is balanced with water to prepare a liquid cleaning composition. did.

These liquid detergent compositions were evaluated for their softening effect and yellowing prevention effect, and the results are shown in Table 1.

The abbreviations in the table are as follows.

LAS-Na: C1□Linear sodium alkylbenzenesulfonate AE S-Na: C10-C13 primary alcohol ethoxy (EOβ=3) Sodium sulfate 5 oap Sodium nioleate Cha D C Nidioctadecenyl dimethyl ammonium chloride (hereinafter Margin) Examples 9 to 19, Comparative Examples 15 to 17 Sodium polyacrylate having a degree of polymerization of 1001 and a molecular weight of about 9,400 was used, and its concentration was kept constant at 3% by weight. To this, as shown in Table 2, various nonionic surfactants and cationic surfactants are used, and these are blended in various proportions shown in Table 2, and the remainder is balanced with water to produce liquid cleaning. A drug composition was prepared.

These cleaning compositions were evaluated for their anti-yellowing effect and softening effect, and the results are shown in Table 2.

Here, the abbreviations in Table 1 are as follows.

POβ: average number of added moles of propylene oxide C1,D
C Nidioctadecenyldimethylammonium chloride C, MC: Octadecyltrimethylammonium chloride BOC: Benzyldimethyl 4-t-octylphenoxyethoxyethylammonium chloride C□, BC: Octadecyldimethylbenzylammonium chloride (blank below)

Claims (1)

[Scope of Claims] 1. (A) Higher alcohol ethoxylate having an alkyl group having 8 to 20 carbon atoms and having an average added mole number of ethylene oxide of 7 to 30; At least one nonionic surfactant selected from higher alcohol propoxyethoxylates having an average number of added moles of propylene oxide of 1 to 3 and an average number of added moles of ethylene oxide of 8 to 20: 10 to 40% by weight , (B) The following general formula (I) ▲ Numerical formulas, chemical formulas, tables, etc. are included ▼... (I) (Each symbol in the formula represents the following. R_1: Alkyl group having 12 to 22 carbon atoms, Alkenyl group or hydroxyalkyl group R_2, R_3: methyl group, ethyl group or benzyl group R_4: alkyl group, alkenyl group, hydroxyalkyl group, methyl group, ethyl group or benzyl group At least one cationic surfactant selected from quaternary ammonium salts: 0.1 to 10% by weight; and (C) at least one anionic surfactant selected from synthetic polymer compounds having carboxyl groups and salts thereof. A softening liquid detergent composition containing 0.1 to 10% by weight of a synthetic polymer compound.