Method for producing high-shielding and high-gloss sheet
A production method and high-gloss technology, applied in applications, household appliances, plastic recycling, etc., can solve the problems of difficult recycling of plastic particles and high production costs, and achieve the effect of improving environmental protection, improving efficiency, and bright and bright colors on the surface
Inactive Publication Date: 2015-04-29
上海旭坤塑胶原料有限公司
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AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to overcome the defects of high production cost and difficult recycling of plastic particle residues in the prior art, and provide an industry of high-shading and high-gloss sheet materials prepared by high-concentration and high-reflection white pigments or colorants. Applied production method
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0039] Embodiment 1: the present invention is used for travel bag shell (polycarbonate (PC) bright yellow appearance)
[0040] Step 1: Add polycarbonate (PC) plastic raw material granules with a concentration of 50% white high-reflective colorant or pigment, use high-speed vibrating stirring equipment to make it fully and evenly stirred, and make high-concentration white after passing through plastic granulation equipment The high-shading and high-reflective plastic particles are used for spare.
[0041] Step 2: Install the bright yellow polycarbonate (PC) raw material particles in the trough A of the high-precision double-layer co-extrusion equipment; put the high-shading and high-reflective polycarbonate (PC) plastic particles with high concentration of white pigment It is installed in the trough B of the high-precision double-layer co-extrusion equipment, and the temperature is set at 280 ° C to 305 ° C for extrusion. The film thickness of the high-precision double-layer co...
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Abstract
The invention relates to the technical field of sheets made from styrene copolymer or polycarbonate plastic, in particular to a method for producing a high-shielding and high-gloss sheet. The method comprises the following steps of: mixing the common plastic raw material particles and pigment or paint; co-extruding the mixture and color raw material particles to form a double-layer or multi-layer color high-shielding and high-gloss film; classifying the recycled plastic material, crushing, cleaning, drying and recycling; attaching and extruding the recycled plastic and the color high-shielding and high-gloss film to form a high-gloss sheet; forming a high-gloss shell by using a surface non-contact compressed air forming machine; and cutting a semi-finished shell to form a three-dimensional shape. By the method, the requirements of a product on high gloss and exquisite appearance are met, the shielding rate is high, the recycling rate of industrial wastes is improved, and the pollution of the wastes to the environment is reduced; the production process is simple, and equipment investment is reduced; the paint spraying process is eliminated, and the environment-friendly requirement of recycling the plastic material is met.
Description
[technical field] [0001] The invention relates to the technical field of styrene copolymers or carbonate plastics to produce sheets, in particular to a production method of sheets with high-shading and high-gloss properties. [Background technique] [0002] At present, various home appliances, electronic products, toys, stationery, travel bags, and decoration buildings in the domestic and international markets are constantly introducing new packaging styles, such as air conditioners, flat-screen TVs, refrigerators, computers, travel bags and other industries. Three-dimensional streamlined shape, and the surface tends to be more high-gloss grade materials. At the same time, due to the rapid replacement of old household appliances, a large amount of industrial waste is accumulated. How to recycle old household appliances is a difficult problem to solve. [0003] Advanced countries have put forward environmental protection requirements, and a considerable proportion of recycled...
Claims
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IPC IPC(8): B29D7/01B29B17/00B29C47/06
CPCY02W30/62
Inventor 陈志宏纪伯伦苏俊辉
Owner 上海旭坤塑胶原料有限公司