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Preparation method of cornstarch for talcum powder

A technology of cornstarch and talcum powder, which is applied in the field of preparation of cornstarch for body powder, to achieve the effect of fine powder, mild skin feeling and excellent fluidity

Active Publication Date: 2016-06-15
河南飞天生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problem that asbestos in talcum powder for talcum powder is a carcinogen harmful to human health, the invention provides a method for preparing cornstarch for talcum powder. The method improves the hydrophobicity and fluidity of cornstarch The special powder for talcum powder is prepared, which can ensure that the raw materials are harmless and will not cause damage to the human body

Method used

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  • Preparation method of cornstarch for talcum powder

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Embodiment 1

[0012] The preparation method of cornstarch for talcum powder in this embodiment comprises the following steps: (1) Improvement of the hydrophobicity of cornstarch: alkalization of cornstarch, during alkalization, use Na 2 CO 3 Adjust the pH of cornstarch to 8, Na 2 CO 3 The dosage is 2% of the starch mass fraction, then spray absolute ethanol and octenyl succinic anhydride on the alkalized starch in a ratio of 1:4, put the alkalized starch into the reactor, compact it, and put the reactor The air in the chamber must be exhausted, the inlet must be sealed, and the reaction is sealed. The reaction time is 1h at 80°C, and then the product is dried at 100°C for 5 minutes to obtain dry starch octenyl succinate, (2 ) Improvement of the fluidity of corn starch: adding aluminum ions to the octenyl succinic acid starch ester obtained in (1) to cross-link metal ions, wherein the aluminum ions are added in the form of aluminum sulfate, and the pH value is adjusted to 8, After standin...

Embodiment 2

[0014] The preparation method of cornstarch for talcum powder in this embodiment includes the following steps: (1) Improvement of the hydrophobicity of special powder: alkalization of cornstarch, during alkalization, use Na 2 CO 3 Adjust the pH value of cornstarch to 8.5, Na 2 CO 3 The dosage is 2% of the starch mass fraction, then spray absolute ethanol and octenyl succinic anhydride on the alkalized starch at a ratio of 1:3.5, put the alkalized starch into the reactor, compact it, and put the reactor The air in the container must be exhausted, the inlet must be sealed, and the reaction is sealed. The reaction time is 1h at 80°C, and then the product is dried at 100°C for 10 minutes to obtain dry starch octenyl succinate, (2 ) Improvement of the fluidity of the special powder: adding aluminum ions to the starch octenyl succinate obtained in (1) for cross-linking of metal ions, wherein the aluminum ions are added in the form of aluminum sulfate, and the pH value is adjusted ...

Embodiment 3

[0016] The preparation method of cornstarch for talcum powder in this embodiment includes the following steps: (1) Improvement of the hydrophobicity of special powder: alkalization of cornstarch, during alkalization, use Na 2 CO 3 Adjust the pH of cornstarch to 9, Na 2 CO 3 The dosage is 2% of the starch mass fraction, then spray absolute ethanol and octenyl succinic anhydride on the alkalized starch at a ratio of 1:3.2, put the alkalized starch into the reactor, compact it, and put the reactor The air in the container must be exhausted, the inlet must be sealed, and the reaction is sealed. The reaction time is 1h at 80°C, and then the resulting product is dried at a temperature of 100°C for 15 minutes to obtain dry starch octenyl succinate, (2 ) Improvement of the fluidity of the special powder: adding aluminum ions to the starch octenyl succinate obtained in (1) for cross-linking of metal ions, wherein the aluminum ions are added in the form of aluminum sulfate, and the pH...

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Abstract

The invention discloses a preparation method of cornstarch for talcum powder, which comprises the following steps: (1) improving the hydrophobicity of cornstarch: alkalization of cornstarch, absolute ethanol and octenyl succinic anhydride at a ratio of 1:4~1 : Spray on the alkalized starch at a ratio of 3, put the alkalized starch into the reactor, seal the reaction, (2) Improve the fluidity of corn starch: add aluminum to the octenyl succinic acid starch ester obtained in (1) The ions carry out the cross-linking of metal ions, adjust the pH value to 8-9, and then carry out water washing, alcohol washing, suction filtration and drying after standing still to obtain high fluidity corn starch; compared with the prior art, the method of the present invention prepares The cornstarch used in the talcum powder has excellent fluidity and good hydrophobicity, the powder is delicate, and the skin feels mild; the invention can ensure that the raw material is harmless and will not cause damage to the human body, and the cornstarch is used as the raw material to carry out Deep processing, low cost of raw materials.

Description

technical field [0001] The invention relates to a preparation method of corn starch, in particular to a preparation method of corn starch for talcum powder with high fluidity and strong hydrophobicity. Background technique [0002] According to the composition of talcum powder, there are mainly three types of powder: talcum powder, corn flour, and pine pollen. Traditional talcum powder is mainly made of talc powder, which also occupies a dominant position in the market and is a mainstream product. Body powder is cheap and easy to market. The main component of talcum powder is magnesium silicate. Because of its unique hexagonal plate crystal structure, it has good lubricity, and its addition amount in talcum powder is quite high. The natural impurity is asbestos, which is a carcinogenic substance that seriously endangers human health. Contents of the invention [0003] Aiming at the problem that asbestos in talcum powder for talcum powder is a carcinogen harmful to human ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/24C08L3/06C08K3/30C08B31/04
Inventor 李林海董得平陈金强赵桂强高建锋
Owner 河南飞天生物科技股份有限公司
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