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Production process of antiskid plastic film and its special-purpose die
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A production process and technology of plastic film, applied in the field of plastic film production process and its molds, can solve the problems of non-slip, high cost of packaging bags, and achieve the effects of excellent tensile strength and impact toughness, and compact process flow
Inactive Publication Date: 2004-08-18
韩汇川
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[0004] The purpose of the present invention is to provide a non-slip plastic film production process and special mold
Method used
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[0023] During production, implement the following processes:
[0024] Extrude the high-pressure polyethylene through a plastic extruder to the extrusion feed inlet 8 of the polymer channel in the inner layer of the special mold, and form a non-slip plastic film base from the outlet after heating.
[0025] The material formed by uniform mixing according to the above ratio is extruded by another plastic extruder to the anti-slip layer material extrusion inlet 9 of the special mold, and is covered by the outlet on the surface of the anti-slip plastic film base after heating to form irregular bark shape.
[0042] Carry out according to the process flow that embodiment one describes during implementation.
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Abstract
The present invention relates to a production process of antiskid plastic film and its special-purpose mould. Its production process includes the following steps: using plastic extruding machine to press polymer into inner layer channel of special-purpose mould, heating and extruding to form antiskid plastic film base; using another plastic extruding machine to press prepared antiskid material into outer layer antiskid material channel of the special-purpose mould, heating, extruding to stick the antiskid material over the plastic film base, finally cooling by airing and setting so as to obtain the invented product. Its special-purpose mould includes main mould core, main mould body, cover plate and lower mould body, etc.
Description
technical field [0001] The invention relates to a plastic film production process and its mold, in particular to a non-slip plastic film production process and its special mold. Background technique [0002] Plastic film is a product with a wide range of uses. In traditional plastic films, the polymer is generally extruded by a plastic extruder and fed into the mold. The polymer in the mold is heated and melted into a gelatinous shape in the mold. After being blown and cooled by blowing at the outlet of the mold, it is drawn and formed by the film blowing auxiliary machine. The traditional mold used generally has only a single material channel. The plastic film produced by the above-mentioned process and mold has smooth surfaces on both sides. The packaging bags produced with this kind of plastic film often limit the stacking height of the packaging due to the smoothness on both sides. There are also plastic films produced by heating and knurling to increase their anti-skid...
Claims
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Application Information
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