JP2000192075A - Liquid detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a detergent composition which imparts an excellent feeling improving effect by incorporating a surfactant with an at least one specified- structure alcohol having a freezing point in a specified range. SOLUTION: This composition comprises 0.5-70 wt.% surfactant and 0.5-5 wt.% (1-30 wt.% based on the surfactant) alcohol represented by the formula: R'O-(R2O)n-H and having a freezing point of 25-70 deg.C. The surfactant is used in an amount of 5-50 wt.% in the case of an anionic surfactant, 5-50 wt.% in the case of a nonionic surfactant, or 0.5-10 wt.% in the case of a cationic surfactant. If necessary, the composition may further contain 0.01-10 wt.% alkali agent, 0.01-30 wt.%, in total, viscosity lowering agent and solubilizer, 0.01-10 wt.%, in total, phase modifier and detergency improver, 0.01-10 wt.%, in total, antiredeposition agent and dispersant, 0.01-10 wt.% bleach, etc. In the formula, R1 is a 13C or higher alkyl or alkenyl; R2O is a 2-4C alkylene oxide group; and n is 0 or 1.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a liquid detergent composition, and more particularly to a liquid detergent composition for clothes.

[0002]

2. Description of the Related Art Conventionally, liquid detergents containing alcohol have been developed. JP-A-60-51794 discloses that the number of carbon atoms is 5 to 5.
It is described that a cleaning agent containing 18 alcohols or the like is suitable for stubborn stains adhering around the kitchen. Japanese Unexamined Patent Publication No. 62-79300 describes that a detergent containing n-octyl alcohol or the like is excellent in the effect of preventing the generation of odor of oleic acid and the deterioration of color tone. Japanese Patent Laid-Open No. 1-294800 describes that a detergent containing behenyl alcohol is excellent in temperature stability, foaming properties and usability. Further, JP-A-8-48994 discloses that a cleaning agent containing an alcohol having an alkyl group having 1 to 5 carbon atoms is excellent in the cleaning property of the silk or wool product etc., which is washed by dipping or washing. Have been described.

However, these techniques only contribute to the improvement of the washing property and the stability, and do not have the effect of improving the texture of clothes, which is an insufficient level.
It is desired to develop a liquid detergent that has an excellent texture improving effect.

[0004]

[In the formula, R ¹ represents a linear or branched alkyl group or alkenyl group having 13 or more carbon atoms, R ² O represents an alkylene oxide having 2 to 4 carbon atoms, and n represents 0 or 1. ]

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION As the surfactant which is the component (a) of the present invention, known ones such as anionic surfactant, nonionic surfactant and cationic surfactant can be used. ..

As the anionic surfactant, an alkylbenzene sulfonate, a polyoxyalkylene alkyl ether sulfate, and the like are preferably used together in order to enhance the detergency, and a fatty acid salt is preferably used together so as to have a low foaming property. As the counterion of the anionic surfactant, an ion derived from an alkali metal, an alkaline earth metal, an alkanolamine or the like can be used. Particularly, sodium, potassium and monoethanolamine are preferable. The content of the anionic surfactant in the composition is preferably 5 to 50% by weight, more preferably 10 to 50% by weight.

As the nonionic surfactant, the following (1)
Something like (4) can be used. (1) Ethylene oxide (hereinafter referred to as E) in alcohol having an alkyl group or an alkenyl group having an average carbon number of 8 to 20.
O) is added on average from 2 to 20 mol to form a polyoxyethylene alkyl or alkenyl ether. (2) Average 1 to 15 mol of EO and 1 to 5 mol of propylene oxide (hereinafter referred to as PO) in alcohol having an alkyl group or an alkenyl group having an average carbon number of 8 to 20.
Molarly added polyoxyalkylene alkyl or alkenyl ether. In this case, EO and PO may be either random addition or block addition. (3) An alkyl polysaccharide surfactant represented by the following general formula (II). R ³ —(OR ⁴ ) _s G _t (II) [In the formula, R ³ is a linear or branched alkyl group or alkenyl group having 8 to 18 carbon atoms, or an alkylphenyl group, and R ⁴ is 2 to 2 carbon atoms. 4 alkenyl group, G has 5 carbon atoms
Or a residue derived from a reducing sugar of 6, s is a number having an average value of 0 to 6, and t is a number having an average value of 1 to 10. ] (4) Fatty acid alkanolamide, polyhydroxy fatty acid amide.

In particular, the polyoxyalkylene alkyl ether (1) or (2) is preferable from the viewpoint of oily dirt cleaning power. The content of the nonionic surfactant in the composition is preferably 5 to 50% by weight, more preferably 10 to 50% by weight.
Is.

In order to further improve the texture,
It is preferable to use a cationic surfactant such as a mono long-chain alkyl quaternary ammonium salt or a di long-chain alkyl quaternary ammonium salt in combination. The content of the cationic surfactant in the composition is preferably 0.5 to 10% by weight, more preferably 1 to 5% by weight. From the viewpoint of the texture improving effect, a mono-long-chain alkyltrimethylammonium salt in which the long-chain alkyl group is an alkyl group having 12 to 22 carbon atoms, particularly 14 to 20 carbon atoms is preferable.
As a counter ion of the cationic surfactant, a halogen atom, CH ₃ SO ₄ , C ₂ H ₅ SO ₄ , CH ₃ COO or HC is used.
OO is preferred. In order to further enhance the texture improving effect, the cationic surfactant is used with respect to the anionic surfactant as follows: cationic surfactant/anionic surfactant=3/1 to 1/
It is preferable to mix in a molar ratio of 2, especially 2/1 to 1/2.

Further, in terms of the stability of the liquid and the cleaning property of mud dirt,
An amphoteric surfactant may be added. Alkylcarbobetaine, alkylsulfobetaine as amphoteric surfactant,
Alkylamide hydroxysulfobetaine, alkylamidoamine type betaine, alkylimidazoline type betaine and the like can be blended.

In the present invention, the total amount of the component (a) in the composition is preferably 0.5 to 70% by weight, more preferably 5 to 50% by weight, still more preferably 10 to 40% by weight.
% By weight.

The composition of the present invention comprises, as the component (b), JIS K among the compounds represented by the general formula (I).
The freezing point determined by the measuring method described in 0065 is 25.
It contains at least one compound having a temperature of not lower than 70°C and not higher than 70°C, particularly not lower than 30°C and not higher than 65°C. R ¹ in the general formula (I)
Has 13 or more, preferably 13 to 21, more preferably 14 to 20, further preferably 15 to 19, and particularly preferably 16 to 19. Component (b) has 13 to 13 carbon atoms
21, preferably 14 to 20, more preferably 15 to 1
Those containing at least one kind of straight-chain alcohols having 9, especially 16 to 19 carbon atoms are preferable. In addition, the component (b) is 2
When more than one kind is mixed, the effect of improving the texture is further enhanced.
The blending amount of the component (b) in the composition is 0.5 to 5% by weight,
Preferably 1 to 5% by weight, particularly preferably 2 to 5% by weight
Is.

To further improve the texture improving effect, (b)
Ingredients are 1 for surfactants, especially nonionic surfactants
-30% by weight is preferable, more preferably 2-20% by weight, further preferably 3-20% by weight, particularly preferably 3%.
10 to 10% by weight.

Although the component (b) is solubilized in the liquid detergent composition, it is presumed that the component (b) is solidified on the clothes during washing to exert a texture.

In order to further improve the texture, it is preferable to add 0.1 to 2% by weight of a soft base such as silicone described in claim 1 of JP-A-10-60480.

Further, in the detergent composition of the present invention, alkali metal hydroxides, silicates, carbonates such as sodium carbonate, and alkali agents such as alkanolamines of 0.01 to
10% by weight; reduction of alcohols such as ethanol, glycols such as ethylene glycol and propylene glycol, paratoluene sulfonic acid, benzoate (also effective as a preservative) and urea other than the component (b) 0.01 to 30% by weight of a sticking agent and a solubilizing agent; a phase adjusting agent such as polyoxyalkylene benzyl ether and polyoxyalkylene phenyl ether, and a detergency improver 0.01
10 wt%; aminopolyacetates such as nitrilotriacetic acid salt, ethylenediaminetetraacetic acid salt, iminodiacetic acid salt, diethylenetriaminepentaacetic acid salt, glycol ether diaminetetraacetic acid salt, hydroxyethyliminodiacetic acid salt and triethylenetetramine hexaacetic acid salt 0.1 to 20% by weight of a metal ion scavenger such as malonic acid, succinic acid, diglycolic acid, malic acid, tartaric acid and citric acid; polyacrylic acid salt, polymaleic acid salt, carboxymethyl cellulose,
Polyethylene glycol having an average molecular weight of 5000 or more, acrylic acid-maleic acid copolymer or its salt, maleic anhydride-diisobutylene copolymer or its salt, maleic anhydride-methyl vinyl ether copolymer or its salt, maleic anhydride- Isobutylene copolymer or salt thereof, maleic anhydride-vinyl acetate copolymer or salt thereof, naphthalene sulfonate formalin condensate,
And claims 1 to 21 of JP-A-59-62614.
(Page 1, column 3, line 5 to page 3, column 4, line 14) 0.01 to 10% by weight of redeposition inhibitors and dispersants such as polymers; 0.01 to 10% by weight of color transfer inhibitors such as polyvinylpyrrolidone 0.01-10% by weight of a bleaching agent such as sodium percarbonate or sodium perborate; tetraacetylethylenediamine, the general formula (I-2) of JP-A-6-316700
Bleach activator such as a compound represented by (I-7) 0.01
0.001 to 2% by weight of enzymes such as amylase, protease, lipase and cellulase; 0.001 to 2% by weight of enzyme stabilizers such as calcium chloride, calcium sulfate, formic acid and boric acid (boron compound) Chino Pearl CBS (manufactured by Ciba Geigy) and Whitex SA
(Sumitomo Chemical Co., Ltd.) fluorescent dye 0.001-1% by weight;
Antifoaming agent such as silica 0.01 to 2% by weight; Butylhydroxytoluene, distyrenated cresol, sodium sulfite, sodium bisulfite and other antioxidants 0.01 to
2% by weight; a bluing agent, a fragrance, an antibacterial preservative and the like can be added. The composition of the present invention has the above (a) and (b).
And optional components and the balance water.

The composition is an alkaline liquid detergent which is particularly effective for clothing such as cotton, hemp, and synthetic fibers.
The pH is preferably 9 to 11.

[0018]

[Examples] Liquid detergent compositions shown in Table 1 were prepared, and the following texture evaluations were performed using the obtained compositions. The results are shown in Table 1.

[Handling Evaluation] Preparation of Pre-treated Cloth Automatic two-tub type washing machine (Toshiba Galaxy 3.6 VH-360S
Prepare 1), put 40 liters of tap water in the washing tub,
To this, mix a cotton towel, cotton Melias underwear and acrylic jersey to a total weight of 2.0 kg.
In addition, add a compact powder detergent according to the standard usage,
Wash for 10 minutes, dehydrate for 1 minute, rinse with running water for 8 minutes (15 liters/minute of water), and dry in a dryer. This washing cycle is repeated 5 times to obtain a pretreated cloth.

Treatment Method 30 liters of tap water is put into the washing tub of the above washing machine, and two pieces of the above-mentioned pretreated cloth are filled with two cotton towels, two pieces of cotton Melias unweared underwear, and one acrylic jersey. Further, 20 mL of the liquid detergent composition shown in Table 1 is put therein and washed normally for 10 minutes. Next, it is dehydrated for 1 minute, and then rinsed with 30 liters of tap water for 5 minutes x 2 times and rinsed. Finally, it was dehydrated for 1 minute, air-dried indoors, and allowed to stand for 1 day in a thermo-hygrostat at 20° C./65% RH. The temperature of the water used for this treatment is 2
It is 0°C.

Criteria for Evaluation A total of 5 pieces of cotton towels, 2 pieces of cotton Melias non-wearing underwear, and 1 piece of acrylic jersey were compared with the unwashed product and the touch, respectively, and evaluated as follows. Much softer than unwashed items; +2 points Softer than unwashed items; +1 point No change from unwashed items; 0 points or more were given by 5 trained panelists, and the average total score of 5 clothes was judged. I compared the textures.

[0022]

[Table 1]

The components used in Table 1 are shown below. -Nonionic surfactant a: straight-chain first having 10 to 14 carbon atoms
An average of 12 moles of EO added to a primary alcohol Nonionic surfactant b: straight chain primary having 10 to 14 carbon atoms
An average of 10 moles of EO and an average of 2 moles of PO added to a primary alcohol. Nonionic surfactant c: straight chain first having 10 to 14 carbon atoms
5 mol of EO and 2 mol of PO in the primary alcohol,
Block addition of EO in the order of 3 mol on average Nonionic surfactant d: linear second chain having 10 to 14 carbon atoms
Primary alcohol with an average of 7 moles of EO added ・LAS-S agent: linear alkylbenzene sulfonic acid having 10 to 14 carbon atoms ・Fatty acid: coconut oil fatty acid having 12 to 14 carbon atoms ・cationic surfactant: carbon Monoalkyltrimethylammonium chloride having 16 and 18 carbon atoms (having 16 and 18 carbon atoms)
The molar ratio of is 3/7)-Compound e: Linear primary alcohol having 16 carbon atoms (freezing point 50°C)-Compound f: Linear secondary alcohol having 18 carbon atoms (freezing point 58°C)-Compound g: EO for linear primary alcohols having 16 carbon atoms
1 mol on average (freezing point 45°C)-Compound h: C12 straight-chain primary alcohol (freezing point 23.5°C)-Compound i: C18 straight-chain primary unsaturated alcohol (Liquid)-Polymer compound: maleic anhydride diisobutylene copolymer, average molecular weight of 5000, maleic anhydride/diisobutylene monomer ratio (molar ratio) = 6/4-Polyethylene glycol phenyl ether: polyoxyethylene monophenyl ether (EO average 3 moles added)-Enzyme: Durazyme 16.0L (protease, manufactured by Novo Nordisk Bioindustry Co., Ltd.)-Fluorescent dye: Chinopearl CBS-X (manufactured by Ciba-Geigy Co., Ltd.)-Balance: water, total 100 The amount to do.

Each of Examples 1 to 7 of the present invention is excellent in the texture improving effect. Particularly, in Examples 1, 3, 6, and 7, since the cationic surfactant is used in combination, the texture improving effect is further excellent. Particularly, in Example 1, since two kinds of the component (b) are used in combination, a higher effect of improving the texture can be obtained. On the other hand, in Comparative Example 1, since the component (b) is not included, the texture is not improved. In Comparative Examples 2 and 3, since the freezing point of the component (b) is 25° C. or lower, the texture improving effect is poor.

[0025]

The liquid detergent composition of the present invention has an excellent effect of improving the texture of clothes.

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazunari Maruta 1334 Minato Minato, Wakayama, Wakayama Prefecture F-term (Research) 4H003 AB03 AB19 AB46 AC08 AC23 BA12 DA01 EB04 EB06 EB32 FA22

Claims (1)

[Claims] 1. (a) a surfactant, and (b) JIS K
The freezing point determined by the measuring method described in 0065 is 2
A liquid detergent composition containing 5 to 70° C. and one or more compounds of the following general formula (I), 0.5 to 5% by weight. ^{R 1 O- (R 2 O)} n -H (I) [wherein R ¹ is a linear or branched chain having 13 or more alkyl or alkenyl group of carbon atoms of, R ² O is an alkylene oxide having 2 to 4 carbon atoms , N represents 0 or 1. ]