Polyurethane water vapor seal zipper and preparation method thereof

Abstract

The invention discloses a polyurethane water vapor seal zipper and a preparation method thereof. The preparation method of the invention comprises the following steps: (1) preparing polyurethane base cloth: arranging polyurethane plastic films on both sides of high tenacity polyester or nylon chemical fiber cloth to obtain the polyurethane base cloth; (2) assembling chains on the base cloth: firstly, respectively assembling an unilateral chain on the two pieces of the polyurethane base cloth by a toothing machine, and then combining the two unilateral chains to form a zipper by a zipper head; and (3) preparing the polyurethane water vapor seal zipper. The invention has the beneficial effects that the polyurethane base cloth has good use manufacturability, cold resistance, softness, oil resistance and wear resistance, can not be easily corroded by oil stain and is soft and wear resistant, thus the zipper made of the polyurethane base cloth has good quality and long service life; when in use, the zipper does not pollute the environment and has high production efficiency, the quality of the zipper can be ensured, and the zipper manufactured by the method does not have residual glue and can not pollute a product when the zipper is connected with the product, thus the product is tidier and more beautiful; and hot pressing by an injection molding machine is adopted for sealing the two ends of the zipper, thereby the time is short, the efficiency is high and the sealing effect is good.

Description

Technical field: [0001] The invention belongs to the field of zippers, and relates to a water vapor sealing zipper, in particular to a polyurethane water vapor sealing zipper. Background technique: [0002] Zippers in the prior art, especially water-vapor-sealed zippers, are made of rubber cloth as the base material, and the rubber cloth is not very good in manufacturability, cold resistance, softness, oil resistance, and abrasion resistance. The zipper made of cloth material is easy to harden at low temperature, easy to be corroded by oil, not soft, and not wear-resistant, which leads to poor quality of zipper made of rubber cloth, small use range and short service life; When using, you can only choose the bonding method, but this bonding method has long working hours, all manual operations, pollutes the environment, low production efficiency, and cannot guarantee the quality of the zipper, and the surface of the zipper manufactured by this method is prone to residual glue ...

AI Technical Summary

Problems solved by technology

[0002] Zippers in the prior art, especially water-vapor-sealed zippers, are made of rubber cloth as the base material, and the rubber cloth is not very good in manufacturability, cold resistance, softness, oil resistance, and abrasion resistance. The zipper made of cloth material is easy to harden at low temperature, easy to be corroded by oil, not soft, and not wear-resistant, which leads to poor quality of zipper made of rubber cloth, small use range and short service life; When using, you can only choose the bonding method, but this bonding method has long working hours, all manual operations, pollutes the environment, low production efficiency, and cannot guarantee the quality of the zipper, and the surface of the zipper manufactured by this method is prone to residual glue pollution. Products, affecting the cleanliness and appearance of zippers and products; zippers made of rubber cloth as the base material can only choose vulcanization methods to seal the two ends of the zipper. The vulcanization method takes a long time, low efficiency, and poor sealing effect

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