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Ultra-fine microcrystalline cellulose talcum powder and preparation method of ultra-fine microcrystalline cellulose talcum powder

A crystalline cellulose and talcum powder technology, applied in the field of ultra-fine crystalline cellulose talcum powder, can solve the problems of poor skin smoothness and softness, low water absorption, unsuitable production, etc., and achieves high storage stability, good shape, The range of use and the effect of excellent use effect

Inactive Publication Date: 2012-10-17
CHINA INT TOURISM & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Food-grade industrial microcrystalline cellulose complies with the US FDA Pharmacopoeia and the Chinese Pharmacopoeia. It is used in medicines and food additives. Because it is a natural product and is non-toxic and harmless to the human body, there is no limit on the amount of addition. Industrial microcrystalline cellulose particles are relatively coarse, not high in water absorption, and poor in skin smoothness and softness, so it is not suitable for making talcum powder

Method used

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  • Ultra-fine microcrystalline cellulose talcum powder and preparation method of ultra-fine microcrystalline cellulose talcum powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Embodiment 1: the preparation of ultrafine microcrystalline cellulose

[0056] 40 kg of commercially available microcrystalline cellulose with an average particle size of 50 μm was irradiated with Co-60 gamma rays at 50 kGy, and ultrafinely pulverized with a jet mill to obtain ultrafine microcrystalline cellulose with an average particle size of 10 μm.

Embodiment 2

[0057] Embodiment 2: the preparation of ultrafine microcrystalline cellulose

[0058] Mix 1 kg of the above-mentioned ultrafine microcrystalline cellulose with an average particle size of 10 μm and 5 kg of pure water, grind it with a wet mill for 30 minutes, and dry it in vacuum to obtain ultrafine microcrystalline cellulose with an average particle size of 8 μm .

Embodiment 3

[0059] Embodiment 3: the preparation of ultrafine microcrystalline cellulose

[0060] The ultrafine microcrystalline cellulose with an average particle size of 10 μm in Example 1 was mixed according to the following feeding ratio: 400 g of microcrystalline cellulose, 1440 mL of hydrochloric acid, 160 mL of sulfuric acid, and 2400 mL of purified water. React at 95°C for 24h. The obtained product is neutralized and washed with sodium hydroxide, finally centrifuged and spray-dried to obtain ultrafine microcrystalline cellulose with an average particle diameter of 5 μm.

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Abstract

The invention discloses natural talcum powder and is characterized in that the natural talcum powder is prepared from ultra-fine microcrystalline cellulose particles by vacuum drying, ultraviolet sterilizing and sieving ultra-fine microcrystalline cellulose particles and packaging in a sterile operation chamber. The ultra-fine microcrystalline celluloses are ultra-fine natural particles refined from plant fibers through acid hydrolysis, and particle diameter is between 0.2mu m and 3.0mu m. The ultra-fine microcrystalline celluloses have large specific surface area and good hygroscopicity and have functions of softening and smoothening skin. The ultra-fine microcrystalline cellulose particles are dried, sterilized, sieved, and packaged in the sterile operation chamber, thus obtaining the natural talcum powder. The natural talcum powder is harmless and non-toxic to human bodies, is not prone to get mould and is a high-quality natural talcum powder cosmetic material.

Description

technical field [0001] The invention relates to an ultrafine microcrystalline cellulose talcum powder, in particular to a talcum powder with an ultrafine microcrystalline cellulose particle diameter of 3.0 microns or less. Background technique [0002] Past body powder products were mostly formulated with talcum powder. Talc powder belongs to the monoclinic crystal system, mostly in the shape of phosphorus flakes and leaves, the particles are soft and greasy, and the Mohs hardness is 1. It is one of the minerals with the lowest hardness in nature. The main components are silicon dioxide and magnesium oxide. It also contains a small amount of magnesium oxide, calcium oxide, and aluminum oxide, with a whiteness of 94-96. [0003] Although talcum powder has the effect of smoothing the skin, it can fill the pores. However, as a chemical raw material, it has recently been found that once talcum powder enters the body, it will have adverse effects on female organs such as ovarie...

Claims

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Application Information

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IPC IPC(8): A61K8/73A61K8/02A61Q15/00
Inventor 时圣涛蓝海蓝洋
Owner CHINA INT TOURISM & TRADE
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