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Melamine sprocket, preparation method and melamine sprocket zipper

A chain tooth and melamine technology, applied in applications, clothing, sliding fastener components, etc., can solve the problems of easy fading, poor color fastness of zipper teeth, single color, etc., and achieve superior resistance, resistance and durability Improved abrasiveness and improved fluidity

Active Publication Date: 2018-01-12
ZHEJIANG WEIXING IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the plastic-steel zipper teeth in the prior art can only be colored by mixing uniform toner, and the color is single, while the zipper teeth obtained by surface coloring processes such as surface spraying have poor color fastness, and are easy to dry clean and wash. fade

Method used

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  • Melamine sprocket, preparation method and melamine sprocket zipper
  • Melamine sprocket, preparation method and melamine sprocket zipper
  • Melamine sprocket, preparation method and melamine sprocket zipper

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preparation example Construction

[0032] The present invention also provides a kind of preparation method of melamine chain tooth, comprising:

[0033] A) mixing melamine-formaldehyde resin prepolymer, inorganic filler, lubricant, curing agent and modification aid to obtain a mixed material;

[0034] B) Injecting the mixed material to obtain melamine chain teeth.

[0035] Since conventional zipper elements are mostly made of thermoplastic materials, their injection molding process is not suitable for the melamine element of the present invention. The present invention obtains higher color fastness to washing and color fastness to dry cleaning by developing a corresponding production process. At the same time, the obtained melamine chain teeth have excellent resistance to grease and various solvents, and have excellent wear resistance. By controlling the injection molding process parameters, the color fastness to washing and dry cleaning of the zipper teeth is further improved, and at the same time, the resist...

Embodiment 1

[0058] First, 100 parts by weight of melamine-formaldehyde resin prepolymer, 15 parts by weight of α-cellulose and 15 parts by weight of talcum powder were mixed, and dried at 75° C. for 24 hours. Then use a ball mill to pulverize the dried mixture into powder. Then, 3 parts by weight of simethicone, 0.5 parts by weight of amine sulfamate and 0.1 parts by weight of titanium dioxide were added, and mixed to obtain a mixed material.

[0059] A thermosetting plastic injection molding machine is used to inject the mixed material onto a coding tape to obtain a melamine chain tooth. The injection molding parameters are: barrel temperature 90°C, mold temperature 150°C, injection pressure 120Mpa, holding pressure 120Mpa, holding time 25s.

[0060] Paste the decal paper on the melamine sprockets. After the decals are pasted, the decals are pasted in a mold at 150°C. The pressure of the decals is 14Mpa, and the time for the decals is 12s.

[0061] After laminating and printing, the su...

Embodiment 2

[0064] First, 90 parts by weight of melamine-formaldehyde resin prepolymer and 25 parts by weight of α-cellulose were mixed, and dried at 75° C. for 24 hours. Then use a ball mill to pulverize the dried mixture into powder. Then, add 4 parts by weight of stearic acid amide, 0.11 parts by weight of diethanolaniline and 0.2 parts by weight of aluminum oxide, and mix to obtain a mixed material.

[0065] A thermosetting plastic injection molding machine is used to inject the mixed material onto a coding tape to obtain a melamine chain tooth. The injection molding parameters are: barrel temperature 90°C, mold temperature 150°C, injection pressure 120Mpa, holding pressure 120Mpa, holding time 25s.

[0066] Paste the decal paper on the melamine sprockets. After the decals are pasted, the decals are pasted in a mold at 150°C. The pressure of the decals is 14Mpa, and the time for the decals is 12s.

[0067] After laminating and printing, the surface of the melamine sprocket is ground...

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Abstract

The invention provides a melamine sprocket. Firstly, a thermosetting plastic melamine-formaldehyde resin prepolymer is applied for preparing the sprocket; after the prepared sprocket is colored, the washing color fastness and dry cleaning color fastness are higher and the sprocket is difficult to fade in the manner of both washing and dry cleaning; a lubricating agent is added, so that the liquidity of the mixture in the injection molding process is increased and the washing color fastness and the dry cleaning color fastness of the sprocket are promoted; under the combined action of a specificamount of melamine-formaldehyde resin prepolymer and other components, the washing color fastness and the dry cleaning color fastness of the sprocket are promoted, and meanwhile, the acquired melamine sprocket has excellent resistance to oil and various solvents and the abrasion resistance is higher.

Description

technical field [0001] The invention relates to the technical field of slide fastener manufacturing, in particular to a melamine chain tooth, a preparation method thereof and a melamine chain tooth slide fastener. Background technique [0002] Zipper is an integral part of clothing accessories and is widely used in people's daily clothing. The zipper is composed of chain teeth, sliders, upper and lower stops (front code and rear code) or locking parts, among which the chain teeth are the key parts. Under normal circumstances, the zipper has two chain belts, and each chain belt has a row of chain teeth. The two rows of chain teeth are arranged alternately. The slider clamps the chain teeth on both sides. The sprockets mesh or disengage from each other. [0003] At present, most of the zippers on the market are plastic steel zippers, also known as polyoxymethylene injection zippers. The chain teeth are mainly made of polyoxymethylene plastic through dye color matching and pr...

Claims

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Application Information

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IPC IPC(8): C08L61/28C08L1/02C08L83/04C08K3/34C08K3/22C08K5/20C08K3/36A44B19/00B29C45/00B29C45/77B29C45/78B29K61/20
Inventor 李富龙
Owner ZHEJIANG WEIXING IND DEV