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Cosmetic additive and cosmetic containing same

A technology for cosmetics and additives, which is applied in the field of cosmetic additives containing polyols and cosmetics containing the additives for cosmetics, which can solve the problems of impaired dispersion, separation of cosmetics, and low heat resistance. Achieve excellent usability, suppress stickiness, and excellent heat resistance

Inactive Publication Date: 2015-09-30
NISSAN CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In addition, the gel cosmetic of Patent Document 3, which uses low-crystalline regenerated cellulose-derived cellulose obtained by sulfuric acid treatment, has the following problems: complex requirements such as mixing other components and requiring a special mixer for dilution. process; low heat resistance; if ionic components are added, the dispersibility will be impaired, cloudiness, precipitate formation, separation of cosmetics, etc.

Method used

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  • Cosmetic additive and cosmetic containing same
  • Cosmetic additive and cosmetic containing same
  • Cosmetic additive and cosmetic containing same

Examples

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Effect test

Embodiment

[0086] Hereinafter, the characteristics of the present invention will be described more specifically with reference to Examples and Comparative Examples. Materials, usage amounts, ratios, processing contents, and processing procedures shown in the following examples can be appropriately changed without departing from the gist of the present invention. Therefore, the scope of the present invention should not be limitedly interpreted by the specific examples shown below.

[0087] [Measurement of average fiber diameter D and average fiber length L]

[0088] The average fiber diameter D and the average fiber length L of the cellulose fibers obtained by the following production examples 1 to 3 were obtained from the TEM images and SEM images according to the procedure described in the third paragraph of the above page 7, and from these values Find the aspect ratio L / D.

[0089] [Measurement of ζ-potential]

[0090] The dispersion liquids of Production Examples 1 to 3 described b...

manufacture example 1

[0091] [Production Example 1: Production of Microcrystalline Cellulose-derived Cellulose Fiber]

[0092] After adding 1,000 parts by mass of pure water to 15 parts by mass of commercially available microcrystalline cellulose (Funcel powder II for column chromatography manufactured by Funakoshi Co., Ltd.) to disperse it, use a high-pressure pulverizer (starburst system) manufactured by Suginomasin Co., Ltd., The pulverization treatment was performed 300 times at 200 MPa to obtain an aqueous dispersion (MC) of cellulose fibers derived from microcrystalline cellulose. The obtained dispersion liquid was measured in a Petri dish, dried at 110° C. for 5 hours, and the water was removed to measure the amount of residue and measure the concentration. As a result, the cellulose concentration (solid content concentration) in water was 1.2% by mass.

manufacture example 2

[0093] [Manufacture Example 2: Manufacture of pulp-derived cellulose fiber]

[0094] After adding 478.3 parts by mass of pure water to 21.7 parts by mass of commercially available kraft pulp (LBKP D-8 manufactured by International Paper Palpu Trading Co., Ltd., solid content 46% by mass) to disperse it, it was pulverized by high pressure using Suginomasin Co., Ltd. The device (starburst system) performed 280 pulverization treatments at 245 MPa to obtain an aqueous dispersion (PC) of pulp-derived cellulose fibers. The obtained dispersion liquid was measured in a Petri dish, dried at 110° C. for 5 hours, and the water was removed to measure the amount of residue and measure the concentration. As a result, the cellulose concentration (solid content concentration) in water was 1.5% by mass.

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PUM

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Abstract

[Problem] To provide a cosmetic additive which, if added to a cosmetic, has excellent transparency, good spreadability and texture when applied, and for which stickiness can be suppressed when dry, as well as a cosmetic containing the same. [Solution] A cosmetic additive and a cosmetic containing the cosmetic additive comprise cellulose fibers having an average fiber diameter (D) of 0.001 to 0.05 µm and a ratio (L / D) of average fiber length (L) to average fiber diameter (D) of between 5 and 500.

Description

technical field [0001] The present invention relates to an additive for cosmetics containing cellulose fibers, in particular, to an additive for cosmetics containing cellulose fibers with small fiber diameters and small aspect ratios (that is, relatively short fiber lengths), further comprising polyhydric alcohols, and Cosmetics containing the additive for cosmetics. Background technique [0002] Cosmetics come in various forms such as liquid, emulsion, gel, cream, and stick, and various thickeners and gelling agents are used to improve the usability and maintain the properties of the product. Conventionally, water-based thickeners / gelling agents for cosmetics include natural polymers such as sodium hyaluronate, sodium alginate, and xanthan gum, hydroxyethyl cellulose, and carboxymethyl cellulose Water-soluble polymers such as semi-synthetic polymers such as carboxyvinyl polymers, polyvinyl alcohol, and sodium polyacrylates can be appropriately selected and used according t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/73A61K8/06A61K8/34A61K8/55A61K8/97A61Q19/00
CPCA61K8/731A61K2800/412A61K8/027A61K2800/262A61K2800/48A61K8/0229A61Q19/00A61K8/9789A61K8/9794A61K8/06A61K8/34A61K8/55A61K8/73A61K8/345A61K2800/10
Inventor 林寿人岩间武久
Owner NISSAN CHEM CORP
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