Powder and cosmetic preparation

A powder, elastic powder technology, applied in cosmetic preparations, cosmetic preparations, body powders, etc., can solve problems such as lack of touch and smoothness

Pending Publication Date: 2021-09-24
AJINOMOTO CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this N-monolong-chain acyl basic amino acid has excellent spreadability on the skin when applied, it lacks the tactile feeling at the time of application due to the rolling feeling like spherical nylon powder. and issues such as smoothness

Method used

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  • Powder and cosmetic preparation
  • Powder and cosmetic preparation
  • Powder and cosmetic preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Weigh 4g of N in a 1L alumina ball mill container ε - lauroyl lysine (Ajinomoto Co., Ltd., AMIHOPE (registered trademark) LL) and 16 g of cornstarch (Nippon Food & Chemical Co., Ltd., cornstarch W). Add 660g of alumina balls with a diameter of 2.0cm and 600g of alumina balls with a diameter of 1.0cm in the container, grind and mix with 100rpm for 15 hours, and obtain a mixture with N attached to the surface. ε - Spherical powder of lauroyl lysine. With respect to the N attached to the surface ε -Confirmation of lauroyl lysine was confirmed by visual observation with an optical microscope (manufactured by Hirox Co., Ltd., RH-2000 digital microscope) ε -Lauroyl lysine is attached to the surface of spherical granules characteristic of cornstarch ( figure 1 and figure 2 ). The elastic modulus of described cornstarch is 2.9 * 10 8 N / m 2 . It should be noted that the elastic modulus of the elastic powder is based on the particle diameter measured particle by particle...

Embodiment 2

[0047] Except that the time of pulverization and mixing was changed to 5 hours, the same operation as in Example 1 was obtained to obtain a mixture with N attached to the surface. ε - Spherical powder of lauroyl lysine. The average particle size was 12 μm, and the particle size at which the cumulative frequency of all particles was 90% was 19 μm.

Embodiment 3

[0049] Except that the time of pulverization and mixing was changed to 64 hours, the same operation as in Example 1 was obtained to obtain a mixture with N attached to the surface. ε - Spherical powder of lauroyl lysine. The average particle size was 13 μm, and the particle size at which the cumulative frequency of all particles was 90% was 22 μm.

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Abstract

The present invention provides a powder which is configured such that one or more components among N epsilon-lauroyl lysine and N epsilon-octanoyl lysine are present on the surface of an elastic powder that has an elastic modulus of from 1 plus 105 to 5 plus 1010 N / m2.

Description

technical field [0001] The present invention relates to powders with improved touch and cosmetics containing the powders. Background technique [0002] Spherical polymer powders such as nylon powder (see, for example, Japanese Patent No. 2653990), acrylic powder (see, for example, Japanese Patent No. 3027008), etc. body. In particular, spherical nylon powder has a unique touch and good smoothness when applied due to the unique rolling feeling of the ball, but there is a sense of frustration (きしみ) on the skin from synthetic polymer resins. ) or the problem (technical problem) that it is impossible to impart a moist feeling. [0003] On the other hand, came up with N ε - The technique of incorporating N-monolong-chain acyl basic amino acids represented by lauroyl lysine into cosmetics as a powder for cosmetics to impart a unique moist feeling (refer to JP-A-61-10503). However, although this N-monolong-chain acyl basic amino acid has excellent spreadability on the skin when...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61Q1/12A61K8/02A61K8/44A61K8/73
CPCA61K8/44A61Q1/12A61K8/732A61K8/025A61K2800/612A61K2800/654A61K8/022
Inventor 涌井涉
Owner AJINOMOTO CO INC
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