Elastic foamed material and its solvent-free coating process

Abstract

An elastic foamed material and its solvent-free coating process are disclosed. The solvent-free coating process of the elastic foamed material comprises the following steps: 1, co-extruding a thermoplastic elastic material to form a molten extrusion film; 2, taking a first foamed layer; 3, coating the first foamed layer on one surface of the molten extrusion film; and 4, carrying out cold rolling treatment to weld and cool the extrusion film and the first foamed layer to form the elastic foamed material. So the process has the advantages of simplification, low manufacturing cost and high yield, and especially has the characteristics of health, safety and environmental protection because of no use of an adhesive containing an organic solvent in the whole process.

Description

technical field [0001] The invention relates to an elastic foam material and its bonding process, in particular to an elastic foam material and its solvent-free bonding process. Background technique [0002] Traditionally, when laminating plastic (or rubber) foam multilayers, such as yoga mats, the plastic foam materials used in each layer are first prepared into rolls for use, and then the layers of rolls are pulled out , apply adhesive between each layer of coils, press and stick each layer of coils together, wait for the adhesive to dry, and finally undergo processing such as trimming and cutting to make a plastic foam multi-layer product . [0003] It can be seen that the traditional manufacturing process of the above-mentioned plastic foam multilayer body is not only cumbersome and time-consuming, but also has high production costs, and the production yield is difficult to control, especially the adhesive used in the manufacturing process usually contains highly pollut...

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Problems solved by technology

[0003] It can be seen that the traditional manufacturing process of the above-mentioned plastic foam multilayer body is not only cumbersome and time-consuming, but also has high production costs, and the production yield is difficult to control, especially the adhesive used in the manufacturing process usually contains highly polluting and highly toxic organic solvents. , not only will cause physical health threats and hazards to process personnel or product users, such as: causing skin or respiratory diseases, but also a large amount of VOCs, CO 2 with toxic waste, causing serious negative impact on the environment

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