JP2000008078A - Detergent composition for clothes - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition, simultaneously exhibiting excellent stain removing capacity and low lathering, and useful for cleaning natural or synthetic fibers or the like by including a salt of specific organic phosphate anion and organic amine derivative cation, and nonionic surfactant. SOLUTION: This composition contains (A) a salt of organic phosphate ester anion having a 6-14C alkyl (e.g. n-octyl phosphate ester or 2-ethylhexyl phosphate ester anion) and organic amine derivative cation having a 6-14C alkyl (e.g. quaternary ammonium cation), and (B) a nonionic surfactant e.g. a compound shown by the formula R-O-(AO)p-H [R is ethylene oxide or propylene oxide; R is a 8-18C aliphatic hydrocarbon group, e.g. an 8-18C aliphatic, saturated, primary alcohol residue; and (p) is 1 to 30]}. The composition preferably contains the components A and B at 0.1 to 85 wt.% and 15 to 99.9 wt.%, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a detergent composition for clothing. More particularly, the present invention relates to a detergent composition for clothing which is excellent in washing mud stains.

[0002]

2. Description of the Related Art Conventionally, detergents used for household clothing generally include mainly alkylbenzene sulfonic acid, alkyl sulfate, fatty acid amide, alkali metal salts of inorganic acids, polyoxyalkylated higher alcohols and alkylphenols. Various surfactants are blended.

[0003]

However, the conventional cleaning agent has not sufficiently satisfied mud stains on clothing, and it has been particularly difficult to satisfy both low foamability and mud dirt cleaning.

[0004]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to obtain a cleaning agent which is excellent in detergency of mud stains and low in foaming. The present invention was found to be effectively effective, and reached the present invention.
That is, the present invention provides an organic phosphate ester anion (a-1) having an alkyl group having 6 to 14 carbon atoms and an anion (a-1) having 6 to 1 carbon atoms.
Organic amine derivative cation having an alkyl group of 4 (a-
2) a detergent composition for clothing comprising a salt (A) and a nonionic surfactant (B).

The organic phosphate anion (a-1) having an alkyl group having 6 to 14 carbon atoms in the present invention includes mono- and / or diphosphates having 6 to 14 carbon atoms, such as n-octyl. Phosphate ester, 2-ethylhexyl phosphate ester, dovanol 23
(Mixed alcohol having a side chain ratio of about 20%, manufactured by Mitsubishi Yuka Co., Ltd. and having 12 or 13 carbon atoms) Phosphate ester, tetradecyl phosphate ester and dodecyl phosphate ester; alkyl ether (2 to 4 carbon atoms of alcohol having 6 to 14 carbon atoms) Anions such as mono- and / or di-phosphoric acid esters of alkylene oxide (1 to 20 mol adduct), such as the phosphoric acid ester of n-octyl alcohol ethylene oxide 2 mol adduct.

[0006] Of these, anions such as n-octyl phosphate and 2-ethylhexyl phosphate are particularly preferred.

As the organic amine derivative cation (a-2) having an alkyl group having 6 to 14 carbon atoms in the present invention, a lower alkyl trialkyl group having 6 to 14 carbon atoms (1 to 2 carbon atoms) is used.
4) alkyl ammoniums such as trimethyloctylammonium, tributyloctylammonium,
Quaternary ammonium cations such as trimethylcoconut alkylammonium, trimethylhexylammonium, trimethyldecylammonium, trimethyltetradecylammonium and monomethyltrioctylammonium; alkyl di-lower having 6 to 14 carbon atoms (1 carbon atom)
4) alkyl or hydroxyalkylamines, for example, alkylamines such as dimethylhexylamine, dimethyloctylamine, dimethylcoconutalkylamine, dihydroxyethylhexylamine and polyoxyalkylene (1 to 20 moles of alkylene oxide having 2 to 44 carbon atoms) carbon Tertiary amine cations such as alkylamines of formulas 6 to 14, for example, ethylene oxide adducts of alkylamines such as octylamine ethylene oxide 4 mol adducts.

Of these, quaternary ammonium cations are particularly preferred.

In the present invention, a salt (A) of an organic phosphate ester anion (a-1) having an alkyl group having 6 to 14 carbon atoms and a cation (a-2) of an organic amine derivative having an alkyl group having 6 to 14 carbon atoms is used. ) Can be produced by the following method or the like. For example, in the case of a salt of n-octyl phosphate and trimethyloctyl ammonium, first, 3 mol of n-octyl alcohol and 1 mol of phosphoric anhydride are added to 60 mol.
By reacting at -70 ° C, n-octyl mono- and di-mixed esters are obtained. Separately, 1 mol of dimethyloctylamine and equimolar amounts of dimethyl carbonate and methanol are charged into an autoclave, and under a pressure of about 5 kg / cm ² ,
By reacting at about 120 ° C., a methanol solution of trimethyloctylammonium methyl carbonate is obtained. Next, a methanol solution of trimethyloctyl ammonium methyl carbonate is gradually added to the mixed mono- and di-octyl phosphoric acid ester at 80 to 90 ° C., and the generated carbon dioxide and methanol are distilled off. Then, water is added, and after sufficient anion exchange reaction is performed, the mixture is further diluted with water to obtain an aqueous solution of trimethyloctyl ammonium octyl phosphate.

In the present invention, a salt of an organic phosphate ester anion (a-1) having an alkyl group having 6 to 14 carbon atoms and a cation (a-2) of an organic amine derivative having an alkyl group having 6 to 14 carbon atoms ( A) may be separately mixed with (B) and then mixed to form a salt, or may be mixed beforehand as a salt.

The molar ratio of (a-1) to (a-2) is 1: 0.5 to 1: 2, preferably 1: 0.8 to 1: 1.
2, particularly preferably 1: 0.9 to 1: 1.1.

The nonionic surfactant (B) includes an alkylene oxide-added nonionic surfactant (b-1) represented by the general formula (1) and a polyhydric alcohol-type nonionic surfactant (b) -2).

[0013] Formula _{R-O- (AO) p -H} (1) { wherein, R represents an aliphatic hydrocarbon group having 8 to 18 carbon atoms, p is from 1 to 30 integer, AO is ethylene oxide And / or propylene oxide.の う ち Of these, those represented by the general formula (2) are preferable. Formula _{R-O - [(C 2} H 4 O) n / (C 3 H 6 O) m] - (C 2 H 4 O) k
_{- (C 3 H 6 O)} r -H (2) { wherein, R represents an aliphatic hydrocarbon group having 8 to 18 carbon atoms, n represents an integer of 1 to 8, m is an integer of 1 to 6, k is 2 to 1
The integer of 5 and r show the integer of 1-15. [(C ₂ H ₄ O)
_n / C ₃ H ₆ O) _m ] indicates random addition. 、 In the above random addition, the mixture is preferably 1 to 8 mol of ethylene oxide and 1 to 6 mol of propylene oxide. More preferably, 3 to 8 mol of ethylene oxide,
1 to 4 mol of propylene oxide. In the block addition, the number of moles of ethylene oxide added is preferably 2 to
15 moles, more preferably 3 to 1 ethylene oxide.
2 moles. The number of moles of propylene oxide added is preferably 1 to 15 moles, and more preferably 3 to 10 moles.

Examples of the aliphatic hydrocarbon group having 8 to 18 carbon atoms include saturated or unsaturated, linear and / or branched primary, secondary and tertiary alcohol residues. Preferred among these are residues of aliphatic saturated primary alcohols. The carbon number is preferably from 10 to 18. The number of carbon atoms may be constant or a mixture.

Specific examples of the aliphatic saturated primary alcohol include decyl alcohol, lauryl alcohol, stearyl alcohol, and alcohols synthesized using a Ziegler catalyst [for example, ALFOL 1214 (COND).
EA)], alcohols manufactured by oxo synthesis [for example, Dovanol 23, 25, 45 (manufactured by Mitsubishi Yuka), tridecanol (manufactured by Kyowa Hakko), oxocols 1213, 1215, 1415 (manufactured by Nissan Chemical), Diamond Doll 115-L, 115H, 135 (Mitsubishi Chemical)
Is mentioned. Examples of the aliphatic secondary alcohol include those obtained by oxidizing n-paraffin, and those described in Oil Chemistry, Vol. 21, No. 5, pp. 233-242 (1972).

As (b2), (b2-1) a polyhydric alcohol fatty acid ester, (b2-2) a polyhydric alcohol fatty acid ester alkylene oxide adduct, (b2-)
3) Polyhydric alcohol alkyl ether, (b2-4) polyhydric alcohol alkyl ether alkylene oxide adduct.

Specific examples of (b2-1) include pentaerythritol monolaurate, pentaerythritol monooleate, sorbitan monolaurate, sorbitan monostearate, sorbitan monolaurate, sorbitan dilaurate, sorbitandiolate, and sucrose monolaurate. And stearate. Specific examples of (b2-2) include ethylene glycol monooleate ethylene oxide adduct, ethylene glycol monostearate ethylene oxide adduct, trimethylolpropane monostearate ethylene oxide propylene oxide random adduct, sorbitan monolaurate ethylene oxide Adducts, sorbitan monostearate ethylene oxide adducts, sorbitan distearate ethylene oxide adducts, sorbitan dilaurate ethylene oxide propylene oxide random adducts, and the like.

Specific examples of (b2-3) include pentaerythritol monobutyl ether, pentaerythritol monolauryl ether, sorbitan monomethyl ether, sorbitan monostearyl ether, methyl glycoside, lauryl glycoside and the like. (B2-
Specific examples of 4) include sorbitan monostearyl ether ethylene oxide adduct, methyl glycoside ethylene oxide propylene oxide random adduct,
Lauryl glycoside ethylene oxide adduct, stearyl glycoside ethylene oxide propylene oxide random adduct and the like. The addition mole number of the alkylene oxide is usually 1 to 20.

The content of (A) in the detergent composition for clothing in the present invention is preferably 0.1 to 30% by mass.
The content is more preferably 1 to 10% by mass, and the content of (B) is preferably 5 to 95% by mass, and more preferably 10 to 50% by mass.

The detergent composition of the present invention may be provided as a 100% product, but is usually diluted with water and used as an aqueous solution or suspension. The concentration of (A) + (B) is 5 to 100
%, Preferably 10 to 80%. The detergent composition of the present invention is diluted (A) + when used in a washing machine.
It is used in the concentration of (B) in the range of 0.001 g / L to 5 g / L.

The detergent composition for clothing of the present invention may optionally contain an anionic surfactant (such as an alkyl ether sulfate or a sulfated or carboxymethylated ethylene oxide adduct of an aliphatic alcohol), a builder (caustic soda, Contains alkali builders such as soda ash, ammonia, triethanolamine, and sodium tripolyphosphate, chelating agents such as EDTA, NTA, and polycarboxylic acid), fluorescent agents, softeners, enzymes, disinfectants, fragrances, coloring agents, and the like. be able to. Mix or use hydrophilic solvents (methanol, ethanol, isopropyl alcohol, ethylene glycol, propylene glycol, etc.), defoamers (silicone defoamers, propylene glycol defoamers, mineral oil defoamers, etc.) May be.

The detergent composition for clothing of the present invention is particularly useful for washing natural fibers, synthetic fibers, and blended and interwoven fibers thereof. Natural fibers include cotton, hemp, wool and the like, and synthetic fibers include regenerated cellulose fibers such as rayon and acetate, and synthetic fibers such as polyester, polyamide fiber, acrylic and spandex.
These blended interwoven fibers include cotton and hemp and other fibers (such as wool, polyester, polyamide and acrylic),
Wool and other fibers (polyester, polyamide, acrylic, etc.), polyester fiber and other fibers (rayon, acetate, polyamide, acrylic, spandex, etc.), polyamide fiber and other fibers (rayon, acetate, acrylic, spandex, etc.) can give.

There are no particular restrictions on the devices and equipment used for the detergent composition of the present invention. It is usually applied to household washing machines and industrial washing machines. The washing machine can be applied to a conventional pulsator type washing machine and a centrifugal washing type washing machine. In particular, the present invention is suitable for a centrifugal washing type washing machine having a problem that dirt on clothes is hard to remove. The bath ratio is not particularly limited, but is usually 1: 4 to 1:40, preferably 1: 6 to 1:30.
It is.

The washing temperature can be arbitrarily selected depending on the type of fiber to be applied, but is usually 5 to 80 ° C, preferably 20 to 50 ° C.

[0025]

EXAMPLES The present invention will be described in detail with reference to the following Examples, but it should not be construed that the present invention is limited thereto. First, Table 1 shows the structure of the nonionic surfactant used in the examples. The numerical values in the table indicate% by mass.

[0026]

[Table 1]

Examples 1 to 5 and Comparative Examples 1 to 3 Detergent compositions shown in Table 2 were prepared and subjected to a detergency test and a foaming test. The results are shown in Table 2.

[0028]

[Table 2]

<Cleaning Power Test> The cleaning power was measured using a centrifugal washing machine “NA-F800P” manufactured by Matsushita Electric Industrial Co., Ltd.
Artificially contaminated cloth (cotton knit) is made up of 30L of water, bath ratio 30 times,
The sample was washed for 10 minutes under the conditions of a usage amount of 25 g and a water temperature of 25 ° C., and then rinsed twice for 3 minutes. _{Detergency% = {(R W -R S} ) / (R I -R S)} × 100 R I: reflectance of clean cloth, R _W: reflectance of the cleaning cloth, R _S: reflectance of soiled cloth Use Hunter Whiteness Meter

Note: Detergency% is indicated by 以上 when it is 32% or more, and Δ when it is 20% or more and less than 32%.

<Foaming Test> Using 1.5 L of a 0.1% aqueous solution of the detergent composition described in Table 1, a high-pressure jet liquid foaming tester (manufactured by Tsujii Dyeing Machinery Co., Ltd.) at 50 ° C. At 90 ° C. was evaluated.

Note) ○: Bubble height 20 mm or less
Those of 20 to 50 mm were represented by Δ, and those of 50 mm or more were represented by X.

[0033]

Industrial Applicability The detergent composition for clothing of the present invention has an effect of being excellent in washing mud stains and low in foaming and easy to use for washing clothes.

Claims (6)

[Claims] 1. A salt (A) of an organic phosphate ester anion (a-1) having an alkyl group having 6 to 14 carbon atoms and a cation (a-2) of an organic amine derivative having an alkyl group having 6 to 14 carbon atoms. And a nonionic surfactant (B). 2. The detergent composition for clothing according to claim 1, wherein (B) is a nonionic surfactant represented by the following general formula (1). In the general formula _{R-O- (AO) p -H} (1) ( wherein, R is an aliphatic hydrocarbon group having 8 to 18 carbon atoms, p is from 1 to 30 integer, AO is ethylene oxide and / or propylene oxide Show) 3. The detergent composition for clothing according to claim 2, wherein R is a residue of an aliphatic saturated primary alcohol having 8 to 18 carbon atoms. 4. The content of (A) is 0.1 to 85 mass,
The content of (B) is 15 to 99.9 mass%.
4. The detergent composition for clothing according to any one of claims 3 to 3. 5. The detergent composition for clothing according to claim 1, wherein (a-2) is a quaternary ammonium cation. 6. The cleaning composition for clothing according to claim 1, which is used for washing a knitted or woven fabric containing cellulose fibers, synthetic fibers, wool, silk or acetate fibers.