Preparation process of ultrathin foam cotton
A preparation process, foam foam technology, applied in the direction of film/sheet adhesive, adhesive type, polyurea/polyurethane adhesive, etc., can solve the problem of no way to manufacture foam, etc. The effect of unchanged color, stable quality and long service life
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Embodiment 1
[0017] The present invention provides the following technical solutions: a preparation process for ultra-thin foamed foam, comprising the following steps:
[0018] A. Foam production: first make skin, then use frosted PET film for glue transfer coating, enter the oven to bake at high temperature, and directly wind up after solvent drying;
[0019] B. Direct coating with the produced foam skin: apply the foamed glue on the foam skin, enter the oven and bake until the solvent evaporates cleanly;
[0020] C. Take out the foam after drying in the oven, and then perform composite winding with the double-sided tape made in advance;
[0021] D. After the coiled foam enters the curing room for curing, peel off the frosted film on the foam skin from the foam on the coating machine and roll it separately.
[0022] In this embodiment, the frosted PET film glue components in step A include 70 parts by weight of water-based low elastic modulus polyurethane resin, 10 parts of fumed silica,...
Embodiment 2
[0028] A process for preparing ultra-thin foamed foam, comprising the following steps:
[0029] A. Foam production: first make skin, then use frosted PET film for glue transfer coating, enter the oven to bake at high temperature, and directly wind up after solvent drying;
[0030] B. Direct coating with the produced foam skin: apply the foamed glue on the foam skin, enter the oven and bake until the solvent evaporates cleanly;
[0031] C. Take out the foam after drying in the oven, and then perform composite winding with the double-sided tape made in advance;
[0032] D. After the coiled foam enters the curing room for curing, peel off the frosted film on the foam skin from the foam on the coating machine and roll it separately.
[0033] In this embodiment, the frosted PET film glue components in step A include 60 parts by weight of water-based low elastic modulus polyurethane resin, 20 parts of fumed silica, 5 parts of water-based silicone leveling agent, and 7 parts of wate...
Embodiment 3
[0039] A process for preparing ultra-thin foamed foam, comprising the following steps:
[0040] A. Foam production: first make skin, then use frosted PET film for glue transfer coating, enter the oven to bake at high temperature, and directly wind up after solvent drying;
[0041] B. Direct coating with the produced foam skin: apply the foamed glue on the foam skin, enter the oven and bake until the solvent evaporates cleanly;
[0042] C. Take out the foam after drying in the oven, and then perform composite winding with the double-sided tape made in advance;
[0043] D. After the coiled foam enters the curing room for curing, peel off the frosted film on the foam skin from the foam on the coating machine and roll it separately.
[0044] In this embodiment, the frosted PET film glue components in step A include 75 parts by weight of water-based low elastic modulus polyurethane resin, 10 parts of fumed silica, 3 parts of water-based silicone leveling agent, and 6 parts of wate...
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