JPH044298A - Liquid cleanser composition - Google Patents

Abstract

PURPOSE:To obtain the title composition containing each specific cationic surfactant, nonionic surfactant and semipolar surfactant at a specific ratio, having proper cleansing force to clothing such as silk or wool, maintaining execllent handle and having good storage stability. CONSTITUTION:The transparent and neutral aimed liquid cleanser composition containing (A) 1-5 wt.% one or more kind of cationic surfactants expressed by formula I (R<1> and R<2> are 12-24C alkyl or alkenyl; R<3> and R<4> are methyl,ethyl, polyoxyethylene or polyoxyporphlene; X is halogen, CH3SO4 or C2H5SO4),(B) 10-30 wt.% nonionic surfactant expressed by formula II (R<5> is 10-20C alkyl, alkenyl or alkylpyenly having 6-12C alkyl group and (C) 0-8 wt.% semipolar surfactant expressed by formula III (R<6> is 10-22C alkyl; R<7> and R<8> are methyl, ethyl, ethyl or hydroxyethyl).

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a transparent liquid detergent, and more particularly to silk products, wool products, fashionable clothing, and other clothing that needs to be cleaned even with the slightest stain. It has moderate cleaning power,
This invention relates to a neutral, transparent liquid detergent composition that does not impair its excellent texture and has excellent storage stability.

[Conventional technology]

Traditionally, when washing clothes at home, a detergent containing an anionic surfactant or a nonionic surfactant as the main ingredient is used to wash clothes, and then a cationic surfactant is added to give the fibers texture and antistatic properties. The fabric is further softened using a fabric softener as its main ingredient. However, this method requires two operations, washing and imparting flexibility, and is complicated.

Therefore, Japanese Patent Publication No. 47-4750 and Japanese Unexamined Patent Publication No. 57-1989
Japanese Patent No. 12896 discusses a one-component cleaning method in which the above operations are performed simultaneously, unlike the two-component cleaning method described above.

This one-component composition mainly contains a nonionic surfactant or a semipolar surfactant, and a monoalkyl or dialkyl type cationic surfactant having a long chain saturated group in the molecule as a softening agent component. It is something that

This system is transparent at room temperature when initially blended, but when stored for a long period of time, insolubilized substances precipitate, and cloudiness or precipitation occurs at low temperatures, which significantly reduces commercial value. the result,
In terms of performance, while maintaining appropriate cleaning power and texture, there were problems with stability, making industrial implementation difficult.

In addition, silk products, wool products, fashionable clothes, etc. actually need to be washed in a slightly soiled state, resulting in the use of detergents with strong cleaning power relative to the dirt, and the number of washings is increased, resulting in the loss of fibers. Easy to get damaged. Therefore, there has been a need for a cleaning agent with milder cleaning ability.

[Problem to be solved by the invention]

The present invention is a neutral, transparent liquid detergent that has practical cleaning power for relatively clean fibers, imparts excellent flexibility and texture to the washed fibers, and is stable at room and low temperatures. The purpose is to provide

[Means of problem solving]

The composition of the present invention is one type or a mixture of two or more types of cationic surfactants represented by the general formula (I), and 1 to 5% by weight of a cationic surfactant having an iodine value of 40 to 100.
and a nonionic surfactant 10 represented by general formula (II)
30% by weight, and 0 to 8% by weight of a semipolar surfactant represented by general formula (III).

(In the formula, R1 and R2 are alkyl groups or alkenyl groups having 12 to 24 carbon atoms, R3 and R4 are methyl, ethyl, polyoxyethylene, or polyoxinepropylene groups, and X is a halogen atom, CH, SO.

Or represents C2H, SO4. ) R'O(CH2CH,O), IH・・・・・・・・・(
II) (In the formula, R5 is an alkyl group or alkenyl group having 10 to 20 carbon atoms, or an alkylphenyl group having an alkyl group having 6 to 12 carbon atoms, and n is 5 to 15.) (In the formula, R6 is a carbon number The cationic surfactant represented by the general formula (I) is a quaternary ammonium salt. R1 and R2 in the molecule are an alkyl group or an alkenyl group, and the iodine value thereof is 40 to 1.
It is 00. Therefore, in reality, an alkenyl group is an essential constituent group. The alkyl group or alkenyl group has 12 to 24 carbon atoms, preferably 16 to 20 carbon atoms. R1 and R2
may be the same or different. If the number of carbon atoms is less than 12, the fabric will not have sufficient flexibility and texture after washing,
If the carbon number exceeds 24, it will not dissolve transparently at low temperatures.

R3 and R4 are methyl group, ethyl group, number of moles added is 1 to
5, a polyoxyethylene group or a polyoxypropylene group, preferably a methyl group. X is a halogen atom, CH3SO4, C, H, SO.

Either. Examples of the halogen atom include chlorine, bromine, and iodine, with chlorine being preferred. Specific examples thereof include dioleyldimethylammonium chloride and dialkyldimethylammonium chloride having a mixed unsaturated alkyl group derived from oleic acid, beef tallow fatty acid, or soybean oil fatty acid, and dioleyldimethylammonium chloride is particularly preferred.

Further, these quaternary ammonium salts have an iodine value of 40 to 100, preferably 60 to 90.

The system containing this cationic surfactant is transparent, but if the iodine value is less than 40, the cause is unclear, but -
A cloudy precipitate forms at 0-10°C rather than 5°C. This component is present in the composition in an amount of 1 to 5% by weight, preferably 2 to 4% by weight. If it is less than 1% by weight, flexibility will not be imparted to the fibers after washing, and if it exceeds 5% by weight, not only will cloudy precipitates easily precipitate at low temperatures, but the cleaning power will decrease and re-contamination will occur easily. .

The nonionic surfactant represented by the general formula (n) is a polyoxyethylene alkyl or alkenyl ether in which R5 in the molecule has an alkyl group or alkenyl group having 10 to 20 carbon atoms, and the number of added moles of ethylene oxide is 5 to 15. Alternatively, it is polyoxyethylene alkylphenyl ether having an alkyl group having 6 to 12 carbon atoms. The content of this component in the composition is 10 to 30% by weight, preferably 15% by weight.
~25% by weight. If the amount is less than 10% by weight, not only the detergency is weak and re-contamination is likely to occur, but also the stability at low temperatures decreases. On the other hand, if it exceeds 30% by weight, the solubility at room temperature is poor and it tends to become gel-like.

The semipolar surfactant represented by the general formula (I[[) is R6
has 10 to 22 alkyl groups, and R7 and R8 are methyl, ethyl or hydroxyethyl groups. The content of this component in the composition is 0 to 8% by weight, preferably 1 to 7% by weight.
Weight%. This component is added to improve the solubility, foaming power, and detergency of the system, but if it exceeds 8% by weight, not only does foam breakage become difficult, but also stability at -5°C decreases.

Further, in the composition of the present invention, the weight ratio of the total amount of the components of general formula (II) and the components of general formula (I[[) to the component of general formula (I) is 1:20 to 1:4. Preferably,
More preferably, the ratio is 1:13 to 1:5. On this occasion,
If the blending ratio of the cationic surfactant (component (I)) is less than 1:20, the effect of imparting flexibility to the fibers will not be achieved, and if it is greater than 1:4, the low-temperature stability will not only decrease; Decreased cleaning power and increased risk of recontamination.

To further improve the solubility of the compositions of the invention, solubilizing agents such as ethylene glycol, propylene glycol, glycerin, ethanol, etc. can be included. In addition, water-soluble polymers such as polyvinyl alcohol, carboxymethyl cellulose, hydroxypropyl methyl cellulose, and hydroxybutyl cellulose can also be blended in order to improve detergency or prevent recontamination. Other compositions of the present invention include fragrances, enzymes,
Bactericides, pigments, dyes, etc. can also be blended as appropriate.

[Effect]

The present invention uses a cationic surfactant containing dialkyl, dialkenyl, or a mixture of these hydrophobic groups with an iodine value within a specific range in a detergent system containing nonionic surfactants and semipolar surfactants as main components. By incorporating a surfactant, it is possible to create a one-volume liquid detergent that has practical cleaning power, stability at room temperature and low temperature, and improves the flexibility, texture, and recontamination prevention of the fibers after cleaning. The present invention provides a liquid cleaning composition having the following properties.

〔Example〕

The present invention will be explained by examples. Percentages in concentrations and amounts used are by weight.

The methods of the stability test, flexibility test, and detergency test that were used as the criteria for evaluation of the examples are shown below. The water used in these tests was tap water. All flexibility tests and detergency tests were conducted based on hand-washing, and the silk cloth used was a 100% silk satin woven cloth from Tango.

A stable liquid cleaning composition was prepared at about 70°C and then cooled to about 40°C. Transfer this to a 100 mf screw tube and place it in a constant hot water bath at -5°C, 10°C, 15°C and 25°C.
After being left for a month, the appearance was visually judged. The evaluation criteria are as follows.

○ Transparent, with fluidity 8 Translucent, with fluidity
A silk cloth measuring 20 cm x 20 cm was immersed in No. 1 for 10 minutes, rinsed twice for 3 minutes each, then dehydrated for 10 seconds and air-dried. This washing operation was defined as one cycle, and was repeated five times. After completing the 5th cycle, the test fabric was ironed at a low temperature. This cloth was compared with an unwashed cloth by feel by 8 judges, and the results were evaluated as follows. The evaluation criteria are as follows.

◎ Very softer than unwashed silk cloth ○ Softer than unwashed silk cloth Δ Slightly harder than unwashed silk cloth × Harder than unwashed silk cloth
Two artificially contaminated cloths and two white cloths of No. 1 were soaked, and the bath ratio was 1:
It was adjusted to 100% and washed using a tergotometer. The washing conditions and the composition of the artificially contaminated cloth are as follows.

(Washing conditions) Rotation speed: 7 Qrpm Washing time: 10 minutes Cleaning composition concentration: 0.2% Washing temperature: 30°C Rinse time: 3 minutes x 2 (Stain composition of artificially contaminated cloth (%)) Oleic acid 15.0 Palmitic acid 7.5 Myristic acid 7.5 Hardened beef tallow oil 30.0 Cholesterol 10.0 Squalene 5.0 Cetyl alcohol 1000 Paraffin 15.0 Carbon black was dispersed in this and used as artificial dirt.

The cleaning rate and recontamination rate are calculated before and after cleaning artificially contaminated cloth.
The reflectance of the white cloth before and after washing was measured using a color computer, and the washing rate and recontamination rate were calculated using the following formula.

Ro...Surface reflectance of white cloth R8...Surface reflectance of contaminated cloth RWI...Surface reflectance of contaminated cloth after cleaning Rh1
2...Surface reflectance after cleaning of white cloth 1~ 3~3 Using the cationic surfactant of general formula (I) with the composition shown in Table 1, for a liquid cleaning composition with the following formulation. A three-week stability test was conducted, and the test results are also listed in Table 1.

Cationic surfactant 2% polyoxyethylene (n=9) CI□~CIS mixed alkyl ether 20% lauryl dimethylamine oxide 2% water
76%~7 4~
1 Regarding the liquid cleaning compositions shown in Table 2 and commercially available liquid cleaning compositions (cloudy liquid), low temperature (-5"0 to 5
A stability test, a flexibility test, and a detergency test at temperatures (°C), flexibility tests, and detergency tests were conducted, and the results are also listed in Table 2. From these results, it is understood that the liquid detergent composition of the present invention has excellent stability, flexibility, and detergency.

Note that stability tests at low temperatures were not conducted for products that are gelatinous at room temperature.

(Hereinafter in the margin) [Effects of the invention] The liquid cleaning composition of the present invention can be used for silk products, wool products,
When washing fashionable clothes, etc., it has an appropriate cleaning power, can impart excellent flexibility and texture to the fibers after washing, and maintains its form as a stable and transparent liquid detergent at room and low temperatures. be able to.

Claims (1)

[Scope of Claims] One or a mixture of two or more cationic surfactants represented by the general formula (I), the iodine value of which is from 40 to 1.
00 cationic surfactant and 1 to 5% by weight of a cationic surfactant of the general formula (I
A liquid cleaning composition comprising 10 to 30% by weight of a nonionic surfactant represented by I) and 0 to 8% by weight of a semipolar surfactant represented by general formula (III). ▲There are mathematical formulas, chemical formulas, tables, etc.▼…………(I) (In the formula, R^1 and R^2 are alkyl groups or alkenyl groups having 12 to 24 carbon atoms, and R^3 and R^4 are methyl groups. ,
Ethyl group, polyoxyethylene group or polyoxypropylene group, X represents a halogen atom, CH_3SO_4 or C_2H_5SO_4. ) R^5O(CH_2CH_2O)_nH……(II)(
In the formula, R^5 represents an alkyl group or alkenyl group having 10 to 20 carbon atoms, or an alkylphenyl group having an alkyl group having 6 to 12 carbon atoms, and n represents 5 to 15. ) ▲There are mathematical formulas, chemical formulas, tables, etc.▼…………(III) (In the formula, R^6 is an alkyl group with 10 to 22 carbon atoms, R^7
and R^8 represents a methyl group, an ethyl group or a hydroxyethyl group. )