JP2005319082A - Garment accessory including bamboo fiber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a garment accessory, a formed article made of biodegradable resin, excellent in the strength and decorativeness. <P>SOLUTION: The garment accessory such as a button is a molded article with bamboo fiber mixed in the biodegradable resin. The rate of the bamboo fiber to the resin is 1-5 wt%. It is preferable that the bamboo fiber should include 70-95 wt% short fiber passing a 0.35 mesh screen and 30-5 wt% long fiber retained on a 0.35 mesh screen. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an accessory for clothing made of an environmentally friendly resin molded product containing bamboo fiber.

  Resin molded products are widely known as accessories for clothing such as buttons and buckles, but most of them are made of thermosetting resin and have high calories when burned. There are also problems with the occurrence of formalin, such as the buttons of urea and casein that are widely used and the hook adjuster of polyacetal.

Therefore, there is an attempt to manufacture a button using a biodegradable resin (see Patent Document 1), but there is a problem in strength and decorativeness, and the practicality is poor.
Utility Model Registration No. 3064894

  An object of the present invention is to provide an accessory for clothing which is a molded article using a biodegradable resin and is not only environmentally friendly but also excellent in strength and decorativeness.

  In this invention, the said subject was solved by combining bamboo fiber with biodegradable resin. In other words, accessories for clothing (buttons, buckles, hooks, hooks, toppers, string tips, D-cans, round cans, Z-cans, adjusters, fastener pullers, etc.) are molded products made of bamboo fiber and biodegradable resin. By using the bamboo fiber added and mixed at a ratio of 1 to 5% by weight with respect to the resin, it was possible to obtain a practical product with good moldability while using a biodegradable resin.

  As the biodegradable resin, any commercially available moldable resin having a heat resistance of 100 ° C. or higher can be used, but use of polylactic acid, particularly Biomax manufactured by DuPont is preferable.

  By mixing bamboo fiber, the strength of the molded product increases, and the decorativeness increases due to the natural design effect due to the scattered bamboo fiber. The bamboo fiber may be any fiber having a fiber diameter of about 10 to 200 μm and a fiber length of about 20 to 2000 μm. Usually, the short fiber passing through a 0.35 mesh sieve is 70 to 95% by weight and 0.35 mesh. It is preferable to use those containing 30 to 5% by weight of long fibers that do not pass through a sieve, and it is particularly preferable to contain 85 to 93% by weight of the short fibers and 15 to 7% by weight of the long fibers.

The accessory for clothing of the present invention is manufactured by mixing bamboo fiber, which is a natural material, into biodegradable resin, so it is easy to return to nature without causing environmental pollution in waste treatment, and by its use There is no danger of health. Moreover, the accessory for clothing of this invention becomes very excellent in design nature, since bamboo fiber is moderately scattered in the state which can be seen through from the surface.
Furthermore, the product of the present invention has excellent antibacterial properties due to the presence of bamboo fiber.

[Example 1]
As biodegradable resins, Biomax manufactured by DuPont and Unicon manufactured by Unitika were used. The average diameter was 70 μm, the average fiber length was 500 μm (90% by weight of short fibers passing through a 0.35 mesh sieve, 0.35 1% by weight and 2% by weight (including 10% by weight of long fibers that do not pass through a mesh screen) were added and mixed to form a button.

  The button has a design property in which bamboo fibers are interspersed, and all of them have superior heat resistance and antibacterial properties as compared with those not containing bamboo fibers (Comparative Example 1). The test results are as follows.

[Heat resistance test]
The button was left in a dryer at 80 ° C. for 4 hours to obtain the following results.
Sample 4 in Table 1 (button mixed with bamboo fiber according to the present invention): No deformation Sample 2 in Table 1 (Comparative Example—button without bamboo fiber): Large deformation (warping of about 10 °)

  The light resistance, wash fastness, dry cleaning resistance, etc. of the product of the present invention were not significantly different from those containing no bamboo fiber, and showed good results.

Claims (2)

A molded article made of bamboo fiber and biodegradable resin, wherein the bamboo fiber is added and mixed at a ratio of 1 to 5% by weight with respect to the resin. The accessory for clothing according to claim 1, wherein the bamboo fiber contains 70 to 95% by weight of short fibers that pass through a 0.35 mesh screen and 30 to 5% by weight of long fibers that do not pass through a 0.35 mesh screen. .