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Aqueous hair cleansing composition

A cleansing agent and water-based technology, applied in the field of water-based hair cleansers, can solve problems such as foaming, foam quality not meeting requirements, reduced foam volume, and poor foaming

Inactive Publication Date: 2006-08-30
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if oily components such as silicone oil are mixed in the cleaning agent composition, the foaming will be deteriorated, the amount of foam will be reduced, and the foaming and foam quality cannot meet the requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0080] Production Example 1: (Manufacture of ammonium lauryl ether sulfate with an average added mole number of EO of 1.0)

[0081] Add 2000g Kalcol 2470 (Kao Corporation, dodecyl alcohol: tetradecyl alcohol = about 3: 1) and 1.45g sodium hydroxide in the pressure-resistant closed reaction device, after 30 minutes of dehydration at 110°C and 10mmHg, the system is heated to 165°C. After the temperature was raised, 456 g of ethylene oxide was injected, and the addition reaction was carried out for 30 minutes while maintaining the original temperature. Thereafter, it was cooled to 80° C. and neutralized with 1.3 g of acetic acid to obtain an ethylene oxide adduct of the above-mentioned raw material alcohol.

[0082] Next, sulfation reaction was carried out at 40° C. using 1793 g of the mixture obtained by the above operation and 607 g of sulfuric acid gas. After the reaction, neutralization was performed with 150 g of 28% by weight ammonia water and 600 g of deionized water. T...

manufacture example 2

[0084] Production example 2: (manufacture of ammonium lauryl ether sulfate with an average added mole number of EO of 1.3)

[0085] The sulfate 2 (25 weight% aqueous solution) shown in Table 1 was obtained based on the manufacture example 1 except changing the reaction ratio of a raw material.

[0086] The obtained sulfate was based on the standard of cosmetic raw materials. The sulfate, anion and EO chain were confirmed, and the composition ratio was determined by gas chromatography, as shown in Table 1.

manufacture example 3

[0087] Production Example 3: (Manufacture of Sodium Lauryl Ether Sulfate with an Average Added Mole Number of EO of 1.0)

[0088] Sulfation reaction was carried out at 40° C. using 1793 g of the ethylene oxide adduct of raw material alcohol obtained in Production Example 1 and 607 g of sulfuric acid gas. After the reaction, neutralization was performed with 132 g of 23% by weight aqueous sodium hydroxide solution and 556 g of deionized water. The concentration and pH were adjusted with 23% by weight sodium hydroxide aqueous solution, 75% by weight phosphoric acid and deionized water to obtain 10000 g of sulfate 3 (25% by weight aqueous solution) listed in Table 1.

[0089] The obtained sulfate was based on the standard of cosmetic raw materials, and the sodium salt, sulfate, anion and EO chain were confirmed, and the composition ratio was determined by gas chromatography, as shown in Table 1.

[0090] n＝0

n＝1

n＝2

n＝3

n≥4

Sulfate 1 i...

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Abstract

Provided is an aqueous hair cleansing composition containing the following components (A) to (C): (A) from 5 to 30 wt.% of a sulfate surfactant having sulfates represented by the formula: R-O-(C 2 H 4 O) n -SO 3 M (wherein, R represents a C 8-18 alkyl or alkenyl group, n is 0 or a positive integer and M represents sodium or ammonium) and are composed of from 30 to 45 wt.% of a sulfate with n=0, from 18 to 27 wt.% of a sulfate with n=1, from 10 to 20 wt.% of a sulfate with n=2, and the balance of sulfates with n=3 or greater, and containing the sulfates with n=0 to 2 in a total amount of 70 wt.% or greater based on all the sulfates; (B) from 0.1 to 15 wt.% of a monoalkyl glyceryl ether or monoalkenyl glyceryl ether having a C 4-12 alkyl or alkenyl group; and (C) from 0.1 to 10 wt.% of a silicone oil represented by the formula: R'(CH 3 ) 2 SiO-[(CH 3 ) 2 SiO] m -Si(CH 3 ) 2 R' (wherein, R' represents CH 3 or OH and m is from 50 to 20000).

Description

technical field [0001] The present invention relates to aqueous hair cleansers containing sulfate-type surfactants and glyceryl ethers. Background technique [0002] In recent years, as the performance of shampoos, in addition to basic performances such as cleansing ability, ease of foaming, and rich foam volume, it is also desired to have a smooth feeling of foam when foaming, a smooth feeling when washing, and no friction. and other effects. Alkyl sulfates represented by sodium lauryl sulfate are widely used as anionic cleansing components because of their high detergency and large amount of foaming. However, when an alkyl sulfate is used alone as an anionic component of a cleaning agent, it is not possible to provide a satisfactory tactile feeling during cleaning due to a frictional feeling. Therefore, in order to improve the touch, polyoxyalkylene addition-type alkyl sulfates (alkyl ether sulfates) in which ethylene oxide is added between the alkyl group and the sulfur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/58A61K8/33A61Q5/02
CPCA61Q5/12A61K8/345A61K8/463A61K8/891A61K2800/413A61Q5/02B82Y5/00
Inventor 寺田英治
Owner KAO CORP