JPH10298596A - Liquid detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a liquid detergent composition, excellent in preservation stability, stably usable for a long period and remarkably excellent in effects on impartment of softness and slipperiness to clothes. SOLUTION: This composition contains (a) 10-50 wt.% at least one nonionic surfactant, (b) 0.01-1 wt.% xanthan gum and (c) 0.1-10 wt.% polyester resin, represented by the formula [R1 is 1,4-phenylene group; R2 is 1,3-phenylene group; R3 is 1,4-phenylene group or 1,3-phenylene group; (n) and (m) are each 32-100; (a) is 30-65; (b) is 15-40] and prepared by carrying out the block polymerization.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a liquid detergent composition, and more particularly, to a synthetic fiber garment such as polyester or acrylic which is excellent in flexibility and slipperiness, and which can be separated in a wide temperature range from a low temperature to a high temperature. The present invention relates to a liquid detergent composition which does not cause precipitation.

[0002]

2. Description of the Related Art Polyester fibers have been used in various fields of clothing because of their excellent properties such as excellent dimensional stability, strong properties and low wrinkling. In particular, in recent years, various uniforms have been used in hospitals, food industries, offices, and the like, and there has been remarkable development of polyester fibers in the field of textile uniforms. However, polyester fibers having excellent properties are also extremely poor in water absorption and hygroscopicity due to their hydrophobicity, and are more easily adhered to oily stains than hydrophilic fibers such as cotton, and are difficult to remove. There is a problem that it is easily re-contaminated. This is a problem that has always been raised since the development of polyester fibers in the field of textile uniforms, and many methods have been proposed to solve this problem.

[0003] For example, in order to modify the surface of polyester fiber, treatments such as antistatic property, hydrophilicity and antifouling property with various polymer treating agents have been conventionally carried out. As such a treating agent, a polyester ether copolymer obtained by polycondensing a dicarboxylic acid such as terephthalic acid with a dialkylene glycol and a polyalkylene glycol is known, but it is hard to say that any of them is sufficient. . The one disclosed in JP-B-47-40873 discloses polyethylene glycol (molecular weight: 106 to 460).
And dimethyl sodium 5-sulfoisophthalate as a copolycondensation component, but the blending ratio of polyethylene glycol is as small as 20 mol%, and imparts hydrophilicity to the fiber. And the texture is easily damaged.

[0004] Further, in the compound disclosed in JP-B-46-13197, it is difficult to control the degree of polymerization due to a change in the molar ratio between polyethylene glycol and polyethylene glycol monophenyl ether, and it is difficult to disperse in water. The effect is not sufficiently obtained. In addition,
No. 14467 discloses a polyester copolymer obtained by copolymerizing sodium 5-sulfoisophthalate and a polyvalent salt, and imparts hydrophilicity and durability to fibers. Since the melting point is high, there is no flexibility, the fiber becomes coarse and rigid, and the texture is easily damaged. In addition, since the above-mentioned polyester copolymer is not copolymerized with polyethylene glycol, when mixed with a water-soluble polyvalent salt such as magnesium chloride, salting out occurs and agglomeration occurs. When used in combination with a neutral polyvalent salt, practical problems such as uneven adhesion on fibers are likely to occur.

Further, JP-A-7-166192 discloses a detergent composition in which the polyester resin is a block polyester and various surfactants are used in combination, but the polyester resin has a molecular weight of 1700 to 1000.
For 0, there is a stain removal effect, but there is no flexibility,
The fibers become coarse and stiff, and the texture tends to be impaired. When any of the above polyester compounds are incorporated into the liquid detergent composition, there is a drawback that they precipitate upon high-temperature storage, or that a good softness and sliding effect on synthetic textiles such as polyester and acrylic cannot be obtained.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above circumstances, and is a liquid detergent which is excellent in storage stability and excellent in flexibility and slipperiness of synthetic textiles such as polyester and acrylic. It is intended to provide a composition.

[0007]

Means for Solving the Problems The present inventors have made intensive studies to achieve the above object, and as a result, they have at least one kind of nonionic surfactant, xanthan gum and the following general formula (I). The present inventors have found that a liquid detergent composition containing a polyester resin as an essential component meets the above object, and have completed the present invention. That is, the liquid detergent composition of the present invention comprises: (a) at least one kind of nonionic surfactant:
50% by weight (b) Xanthan gum: 0.01 to 1% by weight (c) Block-polymerized polyester resin represented by the following general formula (I): 0.1 to 10% by weight And

[0008]

Embedded image (Wherein R ₁ is a 1,4-phenylene group, R ₂ is a 1,3-phenylene group, R ₃ is a 1,4-phenylene group or 1,3
A phenylene group, n and m are 32 to 100, a is 30
-65 and b are 15-40. )

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The nonionic surfactant of the component (a), which is an essential component of the present invention, is not particularly limited.
Polyoxyethylene alkyl or alkenyl ether,
Polyoxyethylene polyoxypropylene alkyl or alkenyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbite fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene alkylamine, glycerin fatty acid ester, higher fatty acid alkanol Examples include amides, alkyl glycosides, and alkylamine oxides.

Of these, polyoxyethylene alkyl (or alkenyl) ethers are preferred, and particularly those having 1 carbon atom.
Preferred are ethylene oxide adducts of 0 to 14 linear or branched primary or secondary alcohols to which ethylene oxide having an average addition mole number of 6 to 20 is added. The nonionic surfactants in the composition of the present invention may be used alone or in combination of two or more. The compounding amount of the nonionic surfactant (a) is in the range of 10 to 50% by weight, preferably in the range of 15 to 45% by weight. If the amount is less than 10% by weight, sufficient detergency cannot be obtained,
On the other hand, if it exceeds 50% by weight, the viscosity of the composition increases, which is not preferable in terms of usability.

The amount of xanthan gum (b), which is an essential component of the present invention, is in the range of 0.01 to 1% by weight, preferably 0.05 to 0.5% by weight.
If the amount is less than 0.01% by weight, the stability of high-temperature storage tends to be deteriorated. If the amount exceeds 1% by weight, the viscosity of the composition is remarkably increased, which is not preferable in terms of usability. The polyester resin (c), which is an essential component of the present invention, is a synthetic polymer formed by an ester bond by a polycondensation reaction between a dicarboxylic acid component and a diol component, and is represented by the following general formula (I): Indicated by

[0012]

Embedded image (Wherein R ₁ is a 1,4-phenylene group, R ₂ is a 1,3-phenylene group, R ₃ is a 1,4-phenylene group or 1,3
A phenylene group, n and m are 32 to 100, a is 30
-65 and b are 15-40. This polyester resin is a block polymer of a dicarboxylic acid component and a diol component, and the molar ratio of the dicarboxylic acid component to the diol component is 40/60 to 50 /.
Preferably it is 50. The weight average molecular weight (Mw) of the polyester resin is preferably 13,000 to 30,
000, more preferably 15,000 to 25,000
It is.

The dicarboxylic acid component includes terephthalic acid, isophthalic acid and alkyl esters of methyl, ethyl and propyl esters thereof. As the diol component, ethylene glycol, a number average molecular weight of 1,000
And 8,300 polyethylene glycol. The blending amount of the polyester resin is in the range of 0.1 to 10% by weight, preferably in the range of 0.5 to 5% by weight. If the amount is less than 0.1% by weight, sufficient flexibility and slipperiness cannot be obtained, and if it exceeds 10% by weight, the viscosity of the present composition increases, which is not preferable in terms of usability. The liquid detergent composition of the present invention contains the above-described components as essential components. However, if necessary, the following optional components can be blended as long as the effects of the present invention are not impaired.

Such optional components include, for example, anionic surfactants and cationic surfactants. Examples of the anionic surfactant include the following. 1) an alkylbenzene sulfonate having 8 to 16 carbon atoms 2) an alkyl sulfate having 10 to 20 carbon atoms 3) an α-olefin sulfonate having 10 to 20 carbon atoms 4) an alkane sulfonate having 10 to 20 carbon atoms 5 An alkyl ether sulfate or alkenyl ether sulfate having a linear or branched alkyl or alkenyl group having 10 to 20 carbon atoms and having an average of 0.5 to 8 mol of ethylene oxide added thereto;

6) Polyoxyethylene alkylphenol ether sulfate having an average of 0.5 to 8 mol of ethylene oxide having an alkyl group having 10 to 20 carbon atoms 7) α- having an alkyl group having 10 to 20 carbon atoms Sulfo fatty acid ester salt 8) Fatty acid salt having an alkyl or alkenyl group having 10 to 22 carbon atoms 9) Having a linear or branched alkyl or alkenyl group having 10 to 20 carbon atoms, and having an average of 0.5 to 8 Alkyl ether fatty acid salts or alkenyl ether fatty acid salts to which moles of ethylene oxide have been added 10) Polyoxyethylene alkylphenol ether fatty acid salts having an average of 0.5 to 8 moles of ethylene oxide having an alkyl group having 10 to 20 carbon atoms

Preferred anionic surfactants in the present invention include an alkylbenzene sulfonate having 8 to 16 carbon atoms, an alkyl sulfate having 10 to 20 carbon atoms, an α-olefin sulfonate having 10 to 20 carbon atoms, Number 10
Alkyl ether sulfate or alkenyl ether sulfate having from 20 to 20 linear or branched alkyl groups or alkenyl groups and an average of 0.5 to 8 moles of ethylene oxide, alkyl groups having 10 to 22 carbon atoms or It is a fatty acid salt having an alkenyl group, and the counter ion is preferably sodium, potassium, or alkanolamine.

Examples of the cationic surfactant include:
Examples of the compound represented by the following general formula (II), (III), or (IV) of Chemical Formula 4 or the general formula (VI) of Chemical Formula 6 are exemplified. (1) Formula (II), (III) or (IV)
A quaternary ammonium salt represented by

Embedded image (R ₄ , R ₅ , R ₉ , R ₁₀ : carbons including alkyl groups or alkenyl groups having 6 to 24 carbon atoms or β-hydroxyalkyl groups, or splitting groups split by ester groups, amide groups or ether groups; An alkyl group or an alkenyl group having a number of 8 to 25, R ₆ , R ₇ , R ₈ : an alkyl group having 1 to 3 carbon atoms, a hydroxyalkyl group, a benzyl group, or a group represented by the general formula (V)

[0018]

Embedded image (U: a number of 1 to 3) t: a number of 2 or 3 X: a monoalkyl sulfate having a halogen or an alkyl group having 1 to 3 carbon atoms), (2) a general formula (VI)
The imidazolinium salt represented by

[0019]

Embedded image (R ₁₁ : an alkyl group or alkenyl group having 8 to 25 carbon atoms including an alkyl group or alkenyl group having 6 to 24 carbon atoms, β-hydroxyalkyl group, ester group, amide group or ether group. A group, R ₁₂ : an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms, a benzyl group or a group represented by the general formula (VII)

[0020]

Embedded image (V and w each represent a number of 1 to 3) X: halogen or a monoalkyl sulfate having an alkyl group having 1 to 3 carbon atoms)

The most preferred cationic surfactant in the present invention is a mono-long-chain alkyltrimethylammonium salt. In addition, if necessary, a chelating agent, an ultraviolet absorber, an antioxidant, an antiseptic, an enzyme, a solvent such as ethanol or isopropanol, a dye, a fragrance and the like can be added as optional components. The method for producing the present composition is not particularly limited, but as a pH adjuster for adjusting the pH,
Sulfuric acid, sodium hydroxide, alkanolamine and the like can be used.

[0022]

The liquid detergent composition of the present invention has excellent storage stability and can be used stably over a long period of time, and also has a remarkable effect of imparting flexibility and slipperiness to clothing. It is excellent.

[0023]

The present invention will be described in more detail with reference to examples and comparative examples, but the present invention is not limited to these examples. The performance and stability of the liquid detergent composition were evaluated according to the following test methods. (1) Evaluation method of flexibility and slipperiness for fibers Hand-washing polyester satin cloth with liquid detergent composition (tap water, 20 ° C., detergent 6 g / water 5 L, bath ratio 50 times)
Then, after squeezing so as to have a water content of 100%, it was rinsed twice with 5 L of 20 ° C tap water, and then shaded. Then, it was left in a constant temperature and humidity room at 20 ° C. and 65% RH for 2 days, and this was used as a test cloth to evaluate flexibility and slipperiness. As an evaluation control, a 30% aqueous solution of a nonionic surfactant (alcohol ethoxylate obtained by adding an average of 9 mol of ethylene oxide per mol to a primary alcohol having a carbon chain length of an alkyl group of 12 to 14) was used as a composition. And the above-mentioned washing and drying treatments were performed, and this cloth was used as a control cloth. The test cloth was paired with this control cloth, and the flexibility and the slipperiness were evaluated by sensory evaluation according to the following evaluation criteria. Flexibility ◎: Very softer than control cloth ○: Slightly softer than control cloth △: Equivalent to control cloth ×: Harder or squeaky than control cloth Slippery ◎: Very slippery than control cloth ○: Slightly higher than control cloth Slip △: Same as control cloth ×: Slip less than control cloth

(2) Storage stability The liquid detergent composition is filled in a 100 mL transparent bottle,
The solution was stored for 1 month in a thermostat at 0 ° C., the appearance of the solution was evaluated, and the stability was evaluated. The evaluation criteria were as follows. ：: No change △: Deposition occurs X: Precipitation or separation occurs

Examples 1 to 16, Comparative Examples 1 to 8 Nonionic surfactants (a-1) to (a-
5), xanthan gum (b), polyester resin (c)
Were used to prepare various liquid detergent compositions shown in Tables 1, 2 and 3, and evaluated for flexibility, slipperiness and storage stability for clothing. In addition, the numerical values shown in the following tables indicate the compounding amounts (% by weight, converted to pure components). Abbreviations in the examples and comparative examples in the table are shown below. a-1: alcohol ethoxylate obtained by adding an average of 9 moles of ethylene oxide per mole to a secondary alcohol having an alkyl group having a carbon chain length of 12 to 14 a-2: an alcohol group having a carbon chain length of 12 to 14 Alcohol ethoxylate obtained by adding an average of 12 moles of ethylene oxide per mole to a secondary alcohol of a-3: a primary alcohol having an alkyl group having a carbon chain length of 12 to 14 having an average of 9 moles of ethylene per mole Alcohol ethoxylate with added oxide a-4: Diadol 13 / Natural C12 alcohol 3
Alcohol ethoxylate obtained by adding 7 mol of ethylene oxide to a mixed alcohol / 1. The diamond 13 here is a branched chain higher alcohol having 13 carbon atoms as a main component (linear ratio 60%: Mitsubishi Chemical Corporation). is there. a-5: Alcohol ethoxypropoxylate obtained by adding 15 mol of ethylene oxide to Diadol 13 and then adding 3 mol of propylene oxide b: KELZANT (Sanyo Chemical) c: Pluscoat FR-627 ( (Manufactured by Ryogaku Kagaku Kogyo) (block-polymerized polyester resin, a is 35 to 55, b is 15 to 35 n and m is 3 in the formula (I))
2-80 (average 73), weight average molecular weight 15,000
Plus-coat FR-627 is a 10% aqueous solution, and the compounding amount shown in the following table shows a numerical value (% by weight) in terms of pure content.

[0026]

[Table 1] Table 1: Example 1 2 3 4 5 6 7 components (% by weight) (a) component a-1 30--15 30 30 15 a- 2-30------ a-3- − 30 15 − − 15 (b) component b 0.2 0.2 0.2 0.2 0.2 0.2 0.2 (c) component c 2 2 2 2 2 2 2 Arbitrary component LAS-Na * ¹ − − − − 3 2 3 ARKARD T-800 * ² − − − − 4 3 4 Sodium benzoate 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Sodium citrate 0.01 0.01 0.01 0.01 0.01 0.01 0.01 Ethanol 4 4 4 4 4 4 4 4 Sulfuric acid Appropriate amount of purified water Residual pH 7 7 7 7 7 7 7 Performance Flexibility ◎ ◎ ○ ◎ ◎ ◎ ◎ Slipperiness ◎ ◎ ○ ◎ ◎ ◎ ◎ Storage stability ○ ○ ○ ○ ○ ○ ○ * 1) Sodium alkylbenzene sulfonate having 10 to 14 carbon atoms (molecular weight = 344) * 2) Mono-long-chain alkyl (C18) trimethylammonium chloride (Mw = 348)

[0027]

[Table 2] Table 2: Example 8 9 10 11 12 components (% by weight) (a) Component a-1 35-30-15 a- 2-35-30-a-3 ---- 15 (b ) Component b 0.2 0.2 0.3 0.3 0.3 (c) component c 2 2 4 4 4 Arbitrary component LAS-Na * ¹ − − − − − ARKARD T-800 * ² − − − − − sodium benzoate 0.5 0.5 0.5 0.5 0.5 citric Sodium acid salt 0.01 0.01 0.01 0.01 0.01 Ethanol 4 4 4 4 4 Sulfuric acid Appropriate amount of purified water Residual pH 7 7 7 7 7 Performance Flexibility ◎ ◎ ◎ ◎ ◎ Slippery ◎ ◎ ◎ ◎ ◎ Storage stability ○ ○ ○ ○ ○ * 1) Sodium alkylbenzene sulfonate having 10 to 14 carbon atoms (molecular weight = 344) * 2) Trimethylammonium chloride of mono long chain alkyl (18 carbon atoms) (molecular weight = 348)

[0028]

[Table 3] Table 3: Comparative Example 1 2 3 4 5 components (% by weight) (a) Component a-1 30-30 30 30 a- 2-30--- a-3 -----(b ) Component b − − − − 0.2 (c) component c 2 2 2 − − optional component LAS-Na * ¹ − − 3 − − arcard T-800 * ² − − 4 − − sodium benzoate 0.5 0.5 0.5 0.5 0.5 citric Sodium acid salt 0.01 0.01 0.01 0.01 0.01 Ethanol 4 4 4 4 4 Sulfuric acid Appropriate amount Purified water Residual pH 7 7 7 7 7 Performance Flexibility ◎ ◎ ◎ △ △ Slippery ◎ ◎ ◎ △ △ Storage stability × × × ○ ○ * 1) Sodium alkylbenzene sulfonate having 10 to 14 carbon atoms (molecular weight = 344) * 2) Trimethylammonium chloride of mono long chain alkyl (18 carbon atoms) (molecular weight = 348)

[0029]

[Table 4] Table 4: Example 13 14 15 16 component (% by weight) (a) component a-4 25 25 20 25 a-5 15 15 10 15 (b) component b 0.2 0.2 0.2 0.3 (c) component c 2 2 2 4 Optional component Oleate * ³ − 2 − − TAG butyl ether * ⁴ 3 3 3 3 Ethanol 5 5 5 5 Diethanolamine Appropriate amount of purified water Residual pH 10 10 10 10 Performance Flexibility ○ ○ ○ ◎ Slippery ○ ○ ○ ○ Storage stability ○ ○ ○ ○ * 3) Diethanolamine oleate * 4) Butanol (EO) ₂ (PO) ₁ adduct

[0030]

[Table 5] * 3) Diethanolamine oleate * 4) Butanol (EO)_Two(PO)₁Adduct

From Table 1, Table 2, Table 3, Table 4 and Table 5, (a) at least one kind of nonionic surfactant: 10
(B) Xanthan gum: 0.01 to 1% by weight (c) Block-polymerized polyester resin represented by formula (I) of the present invention: 0.1 to 10% by weight Detergent composition (Examples 1-1
6) is excellent in storage stability and can obtain good flexibility and slipperiness, but lacks any of them (Comparative Example 1).
Nos. To 8) show that storage stability is poor or good flexibility and slipperiness cannot be obtained.

Claims (1)

[Claims] (A) at least one kind of nonionic surfactant: 10 to 50% by weight (b) xanthan gum: 0.01 to 1% by weight (c) represented by the following general formula (I) A liquid detergent composition comprising a block-polymerized polyester resin: 0.1 to 10% by weight. Embedded image (Wherein R ₁ is a 1,4-phenylene group, R ₂ is a 1,3-phenylene group, R ₃ is a 1,4-phenylene group or a 1,3-phenylene group, n and m are 32 to 100, and a is 30-65, b is 15
~ 40. )