JPH04120012A - Transparent gelatinous cleaning agent - Google Patents

Abstract

PURPOSE:To obtain a transparent gel cleaner having excellent transparency, gelation properties, improved cleaning power and feeling in use, comprising an anionic surfactant, a specific amount of a polyhydric alcohol blended and a carboxyvinyl polymer. CONSTITUTION:A transparent gel cleaner comprising an anionic surfactant, a polyhydric alcohol (amount blended is 5-70wt.%, preferably 10-50wt.%) and a carboxyvinyl polymer. An alkyl sulfate or polyoxyethylene alkyl sulfate may be cited as the anionic surfactant. Glycerin, diglycerin or ethylene glycol may be cited as the polyhydric alcohol. Carbopol 934, 940, 941 (Good Rich Chemicals), etc., sold in the market may be used as the carboxyl vinyl polymer.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention provides a product that has excellent transparency and gel properties, and has good detergency.
It relates to a cleaning agent that has a feeling of use (smooth foam, moist feeling after washing).

[Prior art and problems to be solved by the invention] Cleaning agents are provided in various shapes as consumer needs diversify. Among these, transparent gel-like cleaning agents have a refreshing image, have a large coloring effect, and are easy to use, so they are one of the forms that are often requested by consumers.

Conventional transparent gel-like cleaning agents are made of a combination of surfactants,
Alternatively, it is manufactured using a combination of a surfactant and a water-soluble polymer thickener.

Combinations of surfactants, such as detergents made of fatty acid soap and alkyl sulfate, lack transparency;
In addition, since it is solid to semi-solid rather than gel-like, it has the disadvantage that it does not feel good on the skin.

The combination of anionic surfactant and water-soluble polymer thickener has insufficient gelling properties. For example, the combination of an anionic surfactant with excellent detergency and carboxyvinyl polymer, which is a typical gelling agent, causes a decrease in viscosity due to aggregation of the carboxyvinyl polymer, and does not exhibit gelling properties.
Attempts have been made to improve gel properties by using anionic surfactants with counterions such as alkanolamines, but satisfactory gel properties have not been achieved.

Thus, at present, a cleaning agent that satisfies both transparency and gelling properties has not yet been provided.

[Means for Solving the Problem] As a result of intensive research to solve the above problem, the present inventors blended a specific amount of polyhydric alcohol into a combination of anionic surfactant and carboxyvinyl polymer. The inventors have discovered that the above problems can be solved by the following methods, and have completed the present invention.

That is, the present invention relates to a transparent gel-like cleaning material containing an anionic surfactant, a polyhydric alcohol, and a carboxyvinyl polymer, and the amount of the polyhydric alcohol is 5 to 70% by weight. It has excellent transparency and gelling properties that cannot be obtained with conventional transparent gel-like detergents, as well as good detergency and feeling of use (smooth foam, moist feeling after washing).

The anionic surfactant used in the present invention may be one commonly used in detergents, such as alkyl sulfates, polyoxyethylene alkyl sulfates, alkyl sulfonates, alkylbenzene sulfonates, N-
Examples include acyl-N-methyltaurine salts, N-acylsarcosine salts, N-acylamino acid salts, alkyl phosphate ester salts, fatty acid salts, and the like, and these can be used alone or in combination of two or more. The blending amount of the anionic surfactant is in the range of 5 to 60% by weight, and even when mixed with nonionic surfactants such as polyoxyethyl alkyl ether and amphoteric surfactants such as betaine, there is no effect. I can't help it.

Polyhydric alcohols include glycerin, diglycerin,
Examples include polyglycerin, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene gelyl, 1-3 butylene gelyl, 1-4 butylene gelyl, sorbitol, etc., which may be used alone or in combination of two or more. Although a mixture of these can be used, glycerin, diglycerin, and polyglycerin are most suitable from the viewpoint of the surfactant's effect of alleviating skin irritation and the smoothness of the foam during washing.

The blending amount of these polyhydric alcohols is in the range of 5 to 70% by weight, preferably 10 to 50% by weight.

If it is less than 5% by weight, both transparency and gel properties are insufficient.
If the amount exceeds 70% by weight, the cleaning power will be uneven and the product will feel sticky, which is not preferable.

Examples of carboxyvinyl polymers include Carboball 934.940.941 (Genodrynch Chemicals) or Hibiswako-103, 104, 10.
Commercial products such as 5 (Wako Tsumugi Kogyo Co., Ltd.) can be used, and the blending amount is in the range of 0.5 to 5% by weight.

Examples of the pH adjusting agent necessary for neutralizing the carboxyvinyl polymer include inorganic bases such as sodium hydroxide and potassium hydroxide, and organic bases such as jetanolamine and triethanolamine. The blending amount of the pH adjuster is from pH 6 to
Although it is usual to add so that it becomes 8, it is not necessarily limited to this.

Other additives such as colorants, fragrances, preservatives, and sequestering agents may be used within the range that does not impair the effects of the present invention.

[Effects of the Invention] The cleaning agent according to the present invention has unprecedented transparency and gelling properties, and therefore has great visual value such as coloring effect. In addition, the foam is smooth and has a moist feel after washing, providing an excellent feeling of use.

Typical applications of the present invention include hand soaps, shampoos, body shampoos, cleansing shells, kitchen detergents, and laundry detergents.

"Examples" Examples will be specifically explained below. In the examples, % means weight %.

Examples 1 to 9, Comparative Examples 1 to 3 Cleaning agents having the compositions shown in Table 1 were prepared and their performance was evaluated. The results are shown in the same table.

The evaluation method was as follows.

(1) Foaming property (indicator of detergency) A 1% aqueous solution of the detergent was measured at 25° C. by the Ross Miles method, and the value immediately after the measurement was expressed. (2) Gel property The viscosity at 25°C was measured.

○: 20000cP or more (Shows good gel properties) △: Less than 5000-20000cP (Shows weak gel properties) ×・Less than 5000cP (Does not exhibit gel properties) (3) Transparency Judgment was made by visual observation.

○：Transparent △: Slight turbidity is observed.

×: Turbidity is observed.

(4) Smoothness of foam (indicator of usability) Female panelist-2
A sensory test was conducted on a three-level evaluation scale of 0 to good.

0.15 Å or more is rated as good △: 5 to less than 15 people are rated as good Average, Bad ×: Less than 5 people are rated as good (5) Moistness after washing (indicator of usability) Female panelists - 20 people A sensory test was conducted with a three-level evaluation of good, fair, and poor.

○ 15 Å or more is evaluated as good. 6.5 to less than 15 people are evaluated as good. × Less than 5 people are evaluated as good. As is clear from Table 1, it contains anionic surfactants, polyhydric alcohols, and carboxyvinyl polymers. , detergents containing 5 to 70% by weight of polyhydric alcohol have excellent transparency and gelling properties, as well as good cleaning power and feeling of use (smooth foam, moist feeling after washing). There is.

Patent applicant Sakamoto Pharmaceutical Co., Ltd. 1) Ryo

Claims (1)

[Claims] Contains anionic surfactant, polyhydric alcohol, and carboxyvinyl polymer, and the blending amount of polyhydric alcohol is 5 to 5.
A transparent gel-like cleaning agent characterized by having a content of 70% by weight.