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Cationic starch with conditioning and setting effect and preparation method thereof

A technology of cationic starch and cationic modifier, applied in skin care preparations, cosmetic preparations, hair care and other directions, can solve problems such as troublesome adjustment of dosage, difficult storage, transportation, etc., and achieves reduction of dosage and salt content. , the effect of a wide range of viscosity

Active Publication Date: 2017-06-23
GUANGZHOU TINCI MATERIALS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of composition contains multiple ingredients, most of which are emulsions or suspensions, which are not easy to store and transport, and need to add preservatives, which brings some troubles to the adjustment of the dosage of the cosmetic formula when it is used.

Method used

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  • Cationic starch with conditioning and setting effect and preparation method thereof
  • Cationic starch with conditioning and setting effect and preparation method thereof
  • Cationic starch with conditioning and setting effect and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]Get 100g tapioca starch (ratio of straight chain and branched chain is 75:25) and add reactor, evenly spray into 4g potassium hydroxide solution (concentration is 30wt%) and mix well, carry out alkalization, after that, add 25g cationic modifier 3-Chloro-2-hydroxypropyl dimethyl-dodecyl ammonium chloride is sprayed into the reaction kettle, and fully stirred to obtain a starch mixed slurry. Add 500 g (volume concentration: 50%) of ethanol aqueous solution into the reaction kettle to obtain alkalized starch suspension slurry. The temperature is limited to 80°C. After reacting for 2 hours, add acetic acid into the reaction kettle, stir and neutralize until the pH is 5-8, and obtain cationic starch suspension slurry. Afterwards, the cationic starch suspension slurry is centrifuged and dried to obtain the cationic starch with conditioning and setting effects.

Embodiment 2

[0036] Add 40g cassava and 60g cornstarch (ratio of straight chain to branched chain is 81:19) into the reaction kettle, evenly spray 4.5g of sodium hydroxide solution (concentration is 30wt%) and mix evenly, carry out alkalization, after that, 22g The cationic modifier 3-chloro-2-hydroxypropyltrimethylammonium chloride is sprayed into the reaction kettle, and fully stirred to obtain a starch mixed slurry. Add 300 g (50% volume content) of ethanol aqueous solution into the reaction kettle to obtain alkalized starch suspension slurry. The temperature is limited to 70°C. After reacting for 2.5 hours, add hydrochloric acid into the reaction kettle, stir and neutralize until the pH is 5-8, add excess acid to adjust the viscosity, and obtain cationic starch suspension slurry. Afterwards, the cationic starch suspension slurry is centrifuged and dried to obtain the cationic starch with conditioning and setting effects.

Embodiment 3

[0038] Add 10g of tapioca starch, 75g of potato starch, and 15g of waxy cornstarch (the ratio of straight chain to branched chain is 78:22) into the reaction kettle, evenly spray 4g of potassium hydroxide solution (concentration is 30wt%) and mix evenly, carry out alkali After that, 18g of cationic modifier 2,3 epoxypropyltrimethylammonium chloride was sprayed into the reaction kettle, and fully stirred to obtain starch mixed slurry. Add 200 g (50% volume content) of ethanol aqueous solution into the reaction kettle to obtain alkalized starch suspension slurry. The reaction temperature was limited to 70°C. After reacting for 1.5 hours, add sulfuric acid into the reaction kettle, stir and neutralize until the pH is 5-8, and obtain cationic starch suspension slurry. Afterwards, the cationic starch suspension slurry is centrifuged and dried to obtain cationic starch that can be used for conditioning and setting.

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PUM

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Abstract

The invention discloses a preparation method of cationic starch with conditioning and setting effects. The preparation method comprises the following steps: alkalifying the starch by use of alkali liquor, and then injecting a cationic modifier and stirring thoroughly to obtain a starch mixed pulp; dispersing the starch mixed pulp into the aqueous solution of an organic solvent to obtain a starch suspension; increasing the temperature to the range of 40-80 DEG C, reacting for 1.5-3 hours, next, adding an acid, stirring for neutralizing until the pH is within the range of 5-8, and finally, performing centrifugal drying, thereby obtaining the cationic starch with the conditioning and setting effects. The cationic starch is prepared from the starch raw material of a specific structure, and is enabled to have a strong setting effect and a good conditioning effect, namely the double effects of setting and conditioning, after being etherified by use of the special cationic modifier.

Description

technical field [0001] The invention relates to the technical field of polymer compounds, in particular to a cationic starch with conditioning and setting effects and a preparation method thereof. Background technique [0002] The principle of hair styling is that it can be closely combined with the hair and form a film on the outside. The film must have flexibility, strength and elasticity, and have good affinity and adhesion to the hair, and it is not easy to fall off. At present, the film formers used as hair styling agents are mainly polyvinylpyrrolidone or its copolymers, and the models include K30, K90, etc. The climate adaptability of polyvinylpyrrolidone film is poor, it will absorb moisture in a humid environment, the hardness of the film will decrease, and it will lose its setting ability; it will become brittle in a dry environment. Polymers of vinylpyrrolidone have poor compatibility with alkane propellants, and only have good compatibility with Freon propellant...

Claims

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Application Information

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IPC IPC(8): C08B31/12A61K8/73A61Q5/02A61Q5/12A61Q5/06A61Q19/10A61Q19/00
Inventor 英瑜李琳张湘妮吴珊徐三善
Owner GUANGZHOU TINCI MATERIALS TECH
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