Preparation of skin-color rutile type nano-titanium dioxide

A nano-titanium dioxide, rutile-type technology, applied in skin care preparations, cosmetic preparations, cosmetics and other directions, can solve problems such as affecting the performance of cosmetics and low tinting strength of titanium dioxide.
CN102018630AInactive Publication Date: 2011-04-20TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Publication Date
2011-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing an anti-ultraviolet agent and pigment compound for cosmetics. The method is implemented by two steps of: preparing rutile type nano-titanium dioxide pulp from TiCl4 by an external crystal seed dilution hydrolysis method, hydrolyzing FeCl3 in the pulp, washing, suction-filtering, drying and baking at the temperature of 250 DEG C to prepare a target product. A series of skin-color composite anti-ultraviolet agents with different color depths are prepared by varying the mass percentage of Fe2O3 / TiO2 to be 0.75 percent, 1.00 percent, 1.25 percent, 1.50 percent, 2.00 percent and 3.00 percent respectively, wherein the color is gradually darkened from pale yellow color, milky yellow color, light yellow color, yellowish pink color, light pink color to light brown color. The preparation method has the advantages of low raw material cost, simple process steps, mild reaction conditions, wide color adjustable range and certain actual application prospect.
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Description

technical field

[0001] The invention relates to a preparation method of skin color rutile nano-titanium dioxide which can be applied in cosmetics. Background technique

[0002] Ultraviolet rays are one of the most harmful light waves in sunlight to the human body. Excessive exposure to ultraviolet rays will cause erythema and dark spots on the skin, aging the skin, and even cause skin cancer in severe cases. In recent years, with the improvement of people's awareness of ultraviolet rays and the enhancement of health care awareness, the development and application of sunscreen cosmetics has gradually become a scientific research hotspot. Titanium dioxide has been used as a main sunscreen agent due to its high refraction and high photoactivity.

[0003] Due to its small particle size and high activity, nano-titanium dioxide can not only reflect and scatter ultraviolet rays, but also absorb ultraviolet rays, so it has a stronger ability to block ultraviolet rays. Commonly us...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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