Production process for laminating hot melt adhesive with TPU (thermoplastic urethane)
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A production process, hot-melt adhesive technology, applied in the field of hot-melt adhesive production process, can solve the problems of poor flatness, unevenness, beauty, bubbles and wrinkles of the diaphragm
Inactive Publication Date: 2012-05-09
DONGGUAN XIONGLIN NEW MATERIAL TECH
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[0003] The existing hot-melt adhesive laminating TPU production process has relatively poor flattening of the diaphragm and is easy to roll, and the bonding su
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[0023] Below in conjunction with accompanying drawing, the present invention will be further described:
[0024] A kind of production technique of hot-melt adhesive bonding TPU of the present invention, it comprises the following steps:
[0025] Step A, prepare hot melt adhesive raw material and TPU raw material;
[0026] Step B, if the double-layer co-extrusion extruder is selected, first set the set temperature value of the double-layer co-extrusion extruder during production, the double-layer co-extrusion extruder starts to heat up, when the temperature reaches the set temperature value, the double-layer co-extrusion The screw of the layer co-extrusion extruder starts to work and enters step C; if a single extruder is selected, first set the set temperature value of the single extruder production, and the single extruder starts to heat up, when the temperature reaches the set temperature value Finally, the screw of the single extruder starts to work and enters step D; the ...
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Abstract
The invention relates to the technical field of a production process of a hot melt adhesive, and in particular relates to a production process for laminating a hot melt adhesive with TPU (thermoplastic urethane). The production process comprises the following modes of: if a double-layer co-extruder is selected for extruding the hot melt adhesive and the TPU at the same time, laminating to form a membrane after the hot melt adhesive is adhered to the TPU, then forming and coiling; if a single extruder is selected for sequentially extruding the hot melt adhesive and the TPU, producing a single-sided misty or transparent hot melt adhesive product by adopting the mode of directly pressing an embossing roller by a rubber roll, then laminating the single-sided misty or transparent hot melt adhesive with the TPU to form a membrane, then forming and coiling; and if a single extruder is selected for sequentially extruding the TPU and the hot melt adhesive, producing a TPU product by adopting the mode of directly pressing an embossing roller by a rubber roll, then laminating the TPU with the hot melt adhesive to form a membrane, then forming and coiling. The membrane produced by the production process has the advantages of better flatness, less possibility of curliness, uniform surface lamination tension and no bubbles and wrinkles, thus the obtained product is more flat and beautiful.
Description
Technical field: [0001] The invention relates to the technical field of hot melt adhesive production technology, in particular to a production technology of hot melt adhesive bonding TPU. Background technique: [0002] Hot-melt adhesive film is a kind of plastic adhesive, which can replace industrial liquid glue, solid glue and PU glue. It has the advantages of environmental protection, non-toxic and no side effects. As an ideal environmentally friendly adhesive material, hot melt adhesive film has low melting point, high elasticity, acid resistance, alkali resistance, washing resistance, dry cleaning resistance, strong tensile strength, strong adhesion, and low melting point. It has been widely used in embroidery labels. , armbands, trademark bonding, suitable for clothing, shoes and hats, bags, medical, military coats, sportswear, toys and other fields. Due to the superior performance of the hot-melt adhesive film, and in line with the general bonding processing standards...
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