Cosmetic bristle, preparation method of cosmetic bristle and cosmetic brush

A technology of oxidizing agent and polylactic acid is applied in the fields of cosmetic silk, its preparation, and cosmetic brushes, and can solve the problems of difficulty in forming cosmetic silk, pollution, and low degree of degradation, etc.

Inactive Publication Date: 2018-05-08
徐磊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the main component of artificial hair cosmetic silk is polytetramethylene terephthalate (English name is polybutylene terephthalate, referred to as PBT, PBTP or PTMT), but the pollution caused by this material is very serious, mainly due to The product has a low degree of degradation and cannot be degraded through various degradation methods such as biodegradation, water degradation, and landfill degradation. It can exist for a long time under the land cover, so it is easy to cause environmental pollution.
[0005] In order to solve the above problems, researchers have tried to use some easily degradable materials to prepare cosmetic silk. However, degradable materials (such as polylactic acid) are difficult to meet the drawing requirements of cosmetic silk, and it is difficult to form cosmetic silk. By adding additives or When modification and other methods are used to improve processing and preparation, the degradability cannot be controlled, and it is difficult to obtain good degradation force. In addition, it is difficult to achieve the softness and wear resistance required by cosmetic silk

Method used

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  • Cosmetic bristle, preparation method of cosmetic bristle and cosmetic brush
  • Cosmetic bristle, preparation method of cosmetic bristle and cosmetic brush
  • Cosmetic bristle, preparation method of cosmetic bristle and cosmetic brush

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preparation example Construction

[0055] The present invention also provides a preparation method of cosmetic silk, comprising the following steps:

[0056] a) mixing polylactic acid, nylon and polytetramethylene terephthalate to obtain a mixture;

[0057] b) melt-blending the mixture with a plasticizer, a stabilizer, an oxidizing agent, a fixed filler and a filler to obtain a melt;

[0058] c) Drawing, shaping and post-processing the molten material to obtain makeup silk.

[0059] Wherein, the types, dosages and sources of polylactic acid, nylon, polytetramethylene terephthalate, plasticizer, stabilizer, oxidant, fixed filler and filler are all consistent with those described in the above technical solution , which will not be repeated here.

[0060] In the present invention, in the step a), the mixing preferably further includes grinding, through which the polylactic acid, nylon and polytetramethylene terephthalate are ground into powder. The grinding method is not particularly limited, and the grinding m...

Embodiment 1

[0073] 1.1 Sample preparation

[0074] Mix and grind 60% polylactic acid, 20% PA6 and 20% PBT to obtain a powder with a particle size of 1000-1500 mesh, and bake at 115° C. for 2.5 hours to obtain a mixture. Based on the sum of the quality of the above three raw materials, add 2% epoxidized soybean oil, 5% lead stearate, 5% tin oxide, 3% sodium hydroxide and 3% polyethylene. After 3 h of melt blending, a melt was obtained. Put the molten material into the cosmetic silk production line, extrude and draw to obtain a monofilament with a diameter of 0.03-0.12mm, and then soak it in water for 3 minutes at a water temperature of 25°C to obtain a cooled and formed monofilament. After mechanical trimming, trimmed Monofilament: place the trimmed monofilament in an aqueous sodium hydroxide solution with a mass concentration of 9%, and oxidize it at 100°C for 25 minutes to obtain an oxidized monofilament; then wash, dry and arrange it with clean water to obtain a cosmetic silk.

[0075...

Embodiment 2

[0089] 1.1 Sample preparation

[0090] Mix and grind 55% polylactic acid, 24% PA6 and 21% PBT to obtain a powder with a particle size of 1000-1500 mesh, and bake at 120°C for 2 hours to obtain a mixture. Based on the sum of the quality of the above three raw materials, add 3% epoxy butyl furfurate, 5% barium cinnamate, 5% titanium dioxide, 3% barium sulfate and 3% polypropylene, at 245 ° C After 3 h of melt blending, a melt was obtained. The melted material is put into the cosmetic silk production line, extruded and drawn to obtain monofilaments with a diameter of 0.03-0.12 mm, and then soaked in water for 3 minutes at a water temperature of 30 ° C to obtain cooled and formed monofilaments. After mechanical trimming, trimmed Monofilament: place the trimmed monofilament in an aqueous sodium hydroxide solution with a mass concentration of 9%, and oxidize it at 120°C for 25 minutes to obtain an oxidized monofilament; then wash, dry and arrange it with clean water to obtain a cos...

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Abstract

The invention provides cosmetic bristle, a preparation method of the cosmetic bristle and a cosmetic brush. The cosmetic bristle provided by the invention is prepared from raw materials containing aningredient A and an ingredient B; through being metered in percentage by mass, the ingredient A is prepared from 50 to 60 percent of polylactic acid, 20 to 30 percent of nylon and 20 to 30 percent ofpolybutylene terephthalate; through being metered by the mass ratio of all gradients in the ingredient B in the ingredient A, the ingredient B is prepared from 2 to 3 percent of plasticizers, 5 to 10percent of stabilizing agents, 5 to 10 percent of oxidizing agents, 3 to 8 percent of fixed filling materials and 3 to 10 percent of fillers. The cosmetic bristle provided by the invention is preparedfrom the specific ingredient raw materials in the proportion; the polylactic acid, the nylon and the polybutylene terephthalate are matched; under the synergistic effect of the plasticizers, stabilizing agents, oxidizing agents, fixed filling materials and fillers, the cosmetic bristle has excellent degradability; meanwhile, good flexibility and abrasion performance are realized.

Description

technical field [0001] The invention relates to the technical field of cosmetic tools, in particular to a cosmetic thread, a preparation method thereof and a cosmetic brush. Background technique [0002] Makeup brushes are one of the most commonly used makeup tools in the field of beauty makeup. They can be divided into many types according to their functions, such as foundation brushes, rice powder brushes, eyebrow brushes, eye shadow brushes, blush brushes, and contouring brushes. A very important and common daily necessities. As far as the structure is concerned, the makeup brush includes a brush body (handheld for makeup) and a brush head, wherein the brush head is composed of makeup filaments, and the brush head is used to dip cosmetics (such as foundation, etc.) , to complete the makeup. [0003] At present, the main raw materials of cosmetic silk in cosmetic brushes are divided into artificial hair fiber and animal hair fiber. Among them, animal hair cosmetic silk i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D01F8/12D01F1/10A46B9/02
Inventor 徐磊
Owner 徐磊
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