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

Inactive Publication Date: 2019-12-24
NANTONG KANGERLE MEDICAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the manufacturing method of polyurethane foam is chemical method, and there is no way to manufacture foam with a thickness below 0.1mm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention discloses a preparation process of ultrathin foam, which comprises the following steps: A, foam production: firstly carrying out skinning treatment, carrying out glue transfer coating byusing a frosted PET film, baking the foam cotton in an oven at high temperature, drying the solvent, and directly rolling the foam cotton; B, direct coating of the produced foam leather: coating thefoamed glue on the foam cotton skin, and baking the foam cotton skin in an oven until the solvent is completely volatilized; C, taking out the dried foam cotton from the drying oven, and then compounding and rolling the foam with a double faced adhesive tape which is prepared in advance; D, aging rolled foam in a curing room, stripping off a frosted film on the foam leather and the foam are peeledand separately rolling the materials on a coating machine. The production process is simple, the cost is low, the quality is stable, meanwhile, the coating uniformity of the foam can be achieved, andthe produced foam is good in resilience, free of reverse adhesion, stable in foam performance and long in service life.

Description

technical field [0001] The invention relates to the technical field of preparation of foamed foam, in particular to a preparation process of ultra-thin foamed foam. Background technique [0002] Ultra-thin polyurethane foam has always been a problem in the industry. Usually, the manufacturing method of polyurethane foam is chemical method, and there is no way to manufacture foam with a thickness of less than 0.1mm. This process adopts the physical foaming method to manufacture polyurethane foam with a thickness of less than 0.1mm and compound tape, which solves a major problem in the industry. SUMMARY OF THE INVENTION [0003] The object of the present invention is to provide a preparation process of ultra-thin foamed foam to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention provides the following technical solutions: a preparation process for ultra-thin foamed foam, comprising the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/30C09J7/26C09J175/04C09J11/04
CPCC08K7/26C09J11/04C09J175/04C09J2400/24C09J2400/243C09J2475/00C09J7/26C09J7/30C09J2301/1242C09J2301/408
Inventor 姜欣黄新波
Owner NANTONG KANGERLE MEDICAL MATERIALS CO LTD
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