JPS596295A - Additive for granular detergent - 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 an additive that is used in a powder or granular detergent, and in particular, by adding it to a powder or granular detergent containing an anionic surfactant, the additive can be added to a powder or granular detergent containing an anionic surfactant. This invention relates to detergent additives that give fabrics excellent flexibility and feel even after repeated washing.

Conventionally, when washing clothes at home to make them softer, they are usually washed with a detergent, rinsed with a large amount of water, and then treated with a softener containing a cationic activator such as a quaternary ammonium salt as the main ingredient. A method of treatment is adopted by adding a finishing agent.

However, performing washing and softening separately in this way requires extra time and effort, and consumers are demanding detergents that have both cleaning and softening properties.

Water-soluble di-long-chain alkyl-type quaternary ammonium salts have superior softening and antistatic effects compared to water-soluble mono-long-chain alkyl-type quaternary ammonium salts, and when used with detergents. , the fabric to be washed is a hydrophobic fabric such as nylon or polyester rather than a hydrophilic fabric such as cotton fabric.
It is effective against fibers. Household detergents generally have an anionic surfactant as their main component, and when a quaternary ammonium salt is added during washing, this quaternary ammonium salt forms a complex with the anionic surfactant on the surface of hydrophobic fibers, and the fabric remains intact even after washing. Remains on surfaces.

However, when hydrophobic fibers are repeatedly washed with such detergents, the above-mentioned composites do not fall off with each wash, but are adsorbed and accumulated on the hydrophobic fibers, and eventually become sticky when touched. This is not desirable.

The present inventors have conducted intensive studies on the adsorption mechanism of cationic surfactants to synthetic fibers to be washed in the presence of anionic surfactants, and have found that the combination of cationic surfactants and specific glycerides has been found. The inventors have discovered that this improves the adsorption of synthetic fibers onto washed fabrics during repeated washing, and have completed the present invention.

That is, the granular detergent additive of the present invention comprises a cationic world active agent (,) represented by the following general formula (1), and (b).
) A mono- or diglyceride having a fatty acid residue having 12 to 26 carbon atoms or a branched ethylene adduct thereof in a weight ratio of (,) / (b) = 199/1 to 1/10. shall be.

(In the formula, R12g represents an alkyl group of C to C.

R3 and R4 are C1 to C6 alkyl group, benzyl group, C
1% C, represents a hydroxyalkyl group or a polyoxyI alkylene group, and X represents halogen, CH, go4, C, II, go4 or CH8@-8o. ) Specific examples of quaternary ammonium salts represented by the above general formula include (1,) system 1 lyldimetelammonium salt (2
Dihydrogenated beef tallow furkyldimethylammonium salt (3
) Dihydrogenated beef finger argylbenzylmethyl ammonium salt (4) Distearylmethylbenzyl ammonium salt (5) Distearylmethylhydrogyaethylammonium salt (6) Distearylmethyl hydroxyl methyl ammonium salt (7) Examples include stearyldihydroxyethylammonium salt, and counterions include chloride,
Examples include promid. Although commercially available 4M ammonium salts contain lower alcohols such as ethanol and globanol, and water, it is preferable to use as little as possible from the viewpoint of the physical properties (free flow properties, storage stability) of the resulting detergent. .

The component (b) glyceride may be either α-glyceride or β-glyceride in the case of monoglyceride, and may be either α,β-diglyceride or α,α'-diglyceride in the case of diglyceride. Furthermore, in the case of monoglyceride, ethylene oxide may be added to either one or both of the remaining hydroxyl groups. In the latter case, two waters th! M
The average number of moles of ethylene oxide added to K may be the same or different. The preferred range of the number of moles of ethylene oxide added is 1 to 20 moles.

Specific examples of fatty acid groups include lauric acid residue, myristic acid residue, valmitin (1k residue a, stearin residue)
;, oleic acid residue, tallow fatty acid iron group.

Palm fatty acid residues and coconut fatty acid residues are suppressed.

(a) 4 M ammonium salt in detergent b5 additive and (
b) The ratio with glyceride is (a)/(b) =
199/t~1/1. This i1 [1 is 199
If it is thicker than 1/1, it will not be possible to improve the stickiness of synthetic fibers during backwashing, and if it is smaller than 1/1, the antistatic effect will not be exhibited.

In the detergent additive, both components (a) and (b) are preferably mixed as uniformly as possible, and both components are preferably mixed and granulated to form a granular detergent additive. This can be obtained by, for example, a method in which a -5-quaternary ammonium salt and a glyceride are mixed in a heated molten state, and then pulverized and granulated after being spray-cooled or cooled and assimilated.

The additive particles preferably have an average particle size of 500/in or less.

If the particle size becomes large, it becomes difficult to impart a uniform softening effect to the surface of the object to be washed1, and in some cases, the additive particles may adhere to the object to be washed as they are after washing, so it is preferable. do not have.

The amount of the additive of the present invention added to the detergent is 0.1 to 20% by weight, preferably 0.5 to 10% by weight of the 4M ammonium salt based on the detergent. If the amount is less than 0.1%, the softening effect will not be sufficient, and if the amount is less than 20%, the detergency and foaming will decrease.

The detergent additive of the present invention is used by adding it to a powder or granule detergent, especially a powder or granule detergent whose main ingredient is an anionic surfactant, but it can be used alone without being used in combination with a detergent. You can also.

The anti-resistance additive of the present invention can impart flexibility to washed fabrics without causing stickiness even when used in conjunction with an anionic surfactant for repeated washing.

Example Dihydrogenated beef tallow argyldimethylammonium chloride (Alucard 21 (T, purity 91%) powder was melted at 100°C, added with each of the glycerides shown in Table 1 below, and stirred for 10 minutes. After that, it was cooled to room temperature, and the obtained block was crushed to obtain granules with an average particle size of zsoμ.
As a result, the detergent additive of the present invention was obtained.

Next, these detergent additives were added to a granular detergent having the composition shown below, and washing was performed to measure the effect of imparting flexibility to cloth.

Composition of granular detergent ii 11 Furkylbenzenesulfonate (C□
alkyl) 20 wt% silica rtp soda
10wt% carbonated soda
10wt% zeolite (A type, average particle size 211
) 20 vrt% carboxymethyl cellulose 0.7 wt% soap (beef tallow fatty acid) 1.8 tvt sodium sulfate, water Test of balance flexibility imparting effect Nylon tricot cloth (30 denier) 30
19 x 4 pieces acrylic gee cloth 9
0#X2 sheets#id towel
8J'X 2 pieces cotton bleached cloth
so, px 4 pieces cotton knitted cloth
85I! After washing the test cloth consisting of 4 pieces of cloth for 15 minutes using the above granular detergent and 60' tap water,
Pre-treat the test fabric with tap water at 0° C. three times for 3 minutes each on the face. Next, this test cloth was subjected to a jet type household electric current 6d.
Using the granular detergent, each additive composition, and tap water at 25°C, wash for 10 minutes at a detergent concentration of 0.13% and a bath ratio of 30 times, dehydrate for 1 minute, and then wash at 25°C. The procedure of soaking in tap water for 3 minutes and then dehydrating for 1 minute was repeated twice. Afterwards, the test fabric was air-dried for 24 hours, then heated to 25°C.
The air-dried test fabric was conditioned under conditions of 65 inches RH. This operation was repeated 10 times.

A nylon tricot cloth was taken out of the test cloths obtained in one repetition, and its feel was judged by five judges, and the flexibility imparting effect of the additive composition was evaluated based on the average of the five judges. did. The feel was evaluated using the following criteria for comparison with the feel of a nylon tricot cloth obtained by hand HE in the same way as above except that no additive composition was used.

Extremely soft 5 points Fairly soft 4 points Soft 3 points Slightly soft 2 points Slightly soft 1 point On the other hand, a nylon tricot cloth was taken out of the test fabrics obtained by repeating the operation 10 times. The feel was judged by five judges, and the kf value of the stickiness of the additive composition to the cloth to be washed was calculated from the average of the five judges. The feel was evaluated based on the following criteria by comparing the feel of a nylon tricot cloth obtained with the same hand as above except that no additive composition was used.

Extremely sticky 3 points Sticky 2 points Slightly sticky 1 point (Margin below)

Claims (1)

[Claims] 1(a) General formula (1) (wherein, R1t R2 represents an alkyl group of CIl to C76, R11+ R4 represents an alkyl group of C0 to C4, a benzyl group, a hydroxyalkyl group of 02 to C4) or a polyoxyalkylene group, and X represents a halogen, CHa80., C, H, So. or CH, So. 12 to 26 mono- or diglycerides or their ethylene oxide adducts at a heavy lid ratio of 199/
A granular detergent additive characterized in that the additive is contained in a ratio of 1 to 1/1.