Antibacterial cosmetic brush and production method for bristle

A manufacturing method and antibacterial technology, which is applied in the field of manufacturing cosmetic brushes and their bristles, can solve the problems of long drying time, dissolution and detachment of antibacterial agents, and lower concentration of antibacterial agents, and achieve faster drying speed, excellent heat resistance, Excellent safety effect

Active Publication Date: 2009-11-04
FUJI CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, using the above-mentioned method of attaching an organic antibacterial agent, effective antibacterial properties can only be exhibited immediately after surface treatment with an organic antibacterial agent, and there is a problem that the persistence of antibacterial properties is not sufficient.
That is, if the makeup brush is used repeatedly, the attached antibacterial agent will be eluted and detached, and the concentration of the antibacterial agent on the surface will decrease, so the antibacterial property will no longer be exhibited
In addition, organic antibacterial agents cause skin roughness, etc., and there are also problems in terms of safety.
[0013] In addition, in order to keep cosmetic brushes clean, it is desirable to wash them after use. However, brushes using animal hair have the disadvantage of taking a long time to dry after washing due to poor water separation properties of animal hair.
[0014] Therefore, it is common to just wipe off cosmetics after use at present, and it is impossible to obtain a satisfactory cleansing feeling for users

Method used

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  • Antibacterial cosmetic brush and production method for bristle
  • Antibacterial cosmetic brush and production method for bristle
  • Antibacterial cosmetic brush and production method for bristle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0057] First, an inorganic antibacterial agent made of silver-based phosphoric acid-boric acid glass with an average particle diameter of 0.5 μm, titanium oxide, and polybutylene terephthalate resin (PBT) or polybutylene terephthalate resin containing no inorganic antibacterial agent are used. Ethylene terephthalate resin (PET) was used to make two kinds of master batches (master batch A and master batch B). The composition is shown in Table 1 below.

[0058] [Table 1]

[0059]

[0060] Next, use the polybutylene terephthalate resin (PBT) as the raw material resin of the fiber and the above-mentioned master batch A or B, melt and mix them in a predetermined ratio, and then use the melt spinning method to spin to form the fiber diameter The synthetic fiber of 0.05 mm was used as the bristles to obtain the cosmetic brushes of Examples 1 to 4. In addition, the obtained cosmetic brushes of Examples 1 to 4 were evaluated for their antibacterial properties in accordance with the above...

Embodiment 5～9 and comparative example 1

[0067] Using polybutylene terephthalate resin (PBT) as the raw material resin of the fiber and the above-mentioned master batch B, they are melted and mixed in a prescribed ratio, and then spun with a melt spinning method to form a fiber diameter of 0.08 mm Synthetic fiber, using the synthetic fiber as the bristles, the cosmetic brushes of Examples 5 to 9 and Comparative Example 1 were obtained. In addition, the obtained cosmetic brushes of Examples 5 to 9 and Comparative Example 1 were evaluated for their antibacterial properties in accordance with the above-mentioned method. The results are shown in Table 3 below. The values ​​in parentheses in the table indicate the content of inorganic antibacterial agents contained in 100 parts by weight of synthetic fibers.

[0068] [table 3]

[0069]

[0070] As shown in Table 3, it can be seen that in the cosmetic brushes of Examples 5-9 containing 0.02 parts by weight (%) or more of an inorganic antibacterial agent with respect to 100 p...

Embodiment 10～13 and comparative example 2

[0074] First, use inorganic antibacterial agents of various average particle diameters, titanium oxide, and polybutylene terephthalate without inorganic antibacterial agents composed of an equal mixture of silver-zinc-based zeolite and silver-based phosphoric acid glass. Ester resin (PBT) to make masterbatch C. Here, the composition of the master batch C is the same as the master batch B shown in Table 1.

[0075] Next, using the polybutylene terephthalate resin (PBT) as the raw material resin of the fiber and the above masterbatch C, they are melted and mixed in a predetermined ratio, and then spun by the melt spinning method to form a fiber diameter of 0.04 mm synthetic fiber, using the synthetic fiber as the bristles, the cosmetic brushes of Examples 10 to 13 and Comparative Example 2 were obtained. In addition, the obtained cosmetic brushes of Examples 10 to 13 and Comparative Example 2 were evaluated for their antibacterial properties in accordance with the above-mentioned me...

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Abstract

The invention provides a cosmetic brush which is sanitary and safe, protects ecological environment of the globe, and capable of exhibiting bacteria repellancy in a long term. The cosmetic brush has bristles made from synthetic fiber. Every 100 weight parts of the bristle contains over 20 weight parts of synthetic fiber containing inorganic anti-bacteria agent, and every 100 weight parts of inorganic anti-bateria agent containing synthetic fiber contains 0.02-3 weight parts of inorganic anti-bateria agent. Bristle of the cosmetic brush is made by adding 30-1 weight parts of inorganic anti-bacterial agent into 70-90 weight parts of one resin selected from thermoplastic resins, melting and dispersing it, making master batch through extrusion molding, subsequently, adding the master batch into the thermoplastic resin as raw material, melting and dispersing, and spinning. Matching with the master batch, every 100 weight parts of bristle contains 0.02-3 weight parts of inorganic antibacterial agent.

Description

Technical field [0001] The present invention relates to a cosmetic brush having antibacterial properties and a method for manufacturing its bristles. Background technique [0002] Until now, animal hair has been used for the bristles of cosmetic brushes. However, from the viewpoints of protecting animals and protecting the earth’s ecology, it is gradually becoming more difficult to start. Therefore, currently, attempts are being made to use synthetic fibers as a substitute for animal hair. [0003] On the other hand, as society’s expectations for health and cleanliness gradually increase, attempts are being made to impart antibacterial properties in a wide range of fields such as daily necessities, kitchen supplies, toiletries, toilet accessories, and home appliances. [0004] In cosmetic brushes using synthetic fibers as bristles, attempts have also been made to attach an organic antibacterial agent to the surface of the bristles by adsorption, permeation, or reaction to impart ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A46D1/00A45D33/00D01F6/62
Inventor 吉村卓二增村和正镰田治美庄田正博
Owner FUJI CHEM IND CO LTD
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