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Ultrathin PU film with thickness of 1 [mu]m-4.9 [mu]m

An ultra-thin and thin-film technology, applied in the field of ultra-thin PU film, can solve the problems of PU film thickness, no matter how thin it is, it cannot be implemented, and the style is not good.

Inactive Publication Date: 2020-03-27
WUJIANG HANTA TEXTILE FINISHING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, the thinnest PU film was generally 12 μm, and no matter how thin it was, it could not be implemented
Recently, ultra-thin fabrics are popular for bonding. If the PU film is still too thick before, the style is not good.

Method used

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  • Ultrathin PU film with thickness of 1 [mu]m-4.9 [mu]m

Examples

Experimental program
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Effect test

preparation example Construction

[0027] The present invention also provides a method for preparing an ultra-thin PU film of 1 μm-4.9 μm, which specifically includes the following steps:

[0028] Step 1: Use high elastic resin: 100%, MEK: 100%, leveling agent: 3-6% to adjust to 600 viscosity, defoaming for later use;

[0029] Step 2: Install the OPP film on the film making machine, adjust the required 70-mesh roller, set the temperature: 70°C-70°C-70°C-70°C-70°C-70°C, wind speed: 100-100- 120-120-120-120;

[0030] Step 3: Put the adjusted glue into the tank and adjust the scraper;

[0031] Step 4: Start production at a speed of 60 yards;

[0032] Step 5: The rear car rolls up and forms an ultra-thin PU film of 1μm-4.9μm.

[0033] Preferably, in the above-mentioned first step, the mass concentration of the leveling agent is 4-6%.

Embodiment 1

[0035] In the above preferred embodiment, the present invention provides a 1 μm-4.9 μm ultra-thin PU film, comprising a base film 1 and an elastic film layer 2, the elastic film layer 2 is fixedly arranged on the surface of the base film 1, so The base film 1 is an OPP film, and the elastic film layer 2 is a high elastic resin film.

[0036] Further, the elastic film layer 2 and the base film 1 are formed by rolling and drying.

[0037] Further, the raw materials for the preparation of the high elastic resin film include high elastic resin, MEK and leveling agent.

[0038] The present invention also provides a method for preparing an ultra-thin PU film of 1 μm-4.9 μm, which specifically includes the following steps:

[0039] Step 1: Use high elastic resin: 100%, MEK: 100%, leveling agent: 4% to adjust to 600 viscosity, defoaming for later use;

[0040] Step 2: Install the OPP film on the film making machine, adjust the required 70-mesh roller, set the temperature: 70°C-70°C-...

Embodiment 2

[0045] In the above preferred embodiment, the present invention provides a 1 μm-4.9 μm ultra-thin PU film, comprising a base film 1 and an elastic film layer 2, the elastic film layer 2 is fixedly arranged on the surface of the base film 1, so The base film 1 is an OPP film, and the elastic film layer 2 is a high elastic resin film.

[0046] Further, the elastic film layer 2 and the base film 1 are formed by rolling and drying.

[0047] Further, the raw materials for the preparation of the high elastic resin film include high elastic resin, MEK and leveling agent.

[0048] The present invention also provides a method for preparing an ultra-thin PU film of 1 μm-4.9 μm, which specifically includes the following steps:

[0049] Step 1: Use high elastic resin: 100%, MEK: 100%, leveling agent: 5% to adjust to 600 viscosity, defoaming for later use;

[0050] Step 2: Install the OPP film on the film making machine, adjust the required 70-mesh roller, set the temperature: 70°C-70°C-...

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PUM

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Abstract

The invention discloses an ultrathin PU film with the thickness of 1 [mu]m-4.9 [mu]m. The ultrathin PU film comprises a base layer film and an elastic film layer, wherein the elastic film layer is fixedly arranged on the surface of the base layer film; the base layer film is an OPP film; the elastic film layer is a high-elasticity resin film; the film is prepared by the steps: 100% of high-elasticity resin, 100% of MEK and 3-6% of a leveling agent are used for adjusting the viscosity to 600, and defoaming is conducted for standby application; an OPP film is mounted on a film forming machine, aneeded 70-mesh roller is adjusted, and the temperature and the air speed are adjusted; an adjusted glue is put into a groove, and a scraper is adjusted; production is started at the speed of 60 yards; and then the ultrathin PU film with the thickness of 1 [mu]m-4.9 [mu]m is formed through rolling by lathing. The prepared ultrathin PU film with the thickness of 1 [mu]m-4.9 [mu]m is light, good inelasticity and suitable for being attached to any fabric, the original style of the fabric is not damaged, the elasticity of the fabric is improved, the ultra-thin PU film rebounds and has an anti-wrinkle function, and four-way stretch can also achieve the liner-free down-proof effect through attachment of the PU film.

Description

technical field [0001] The invention specifically relates to an ultra-thin PU film of 1 μm-4.9 μm. Background technique [0002] With the improvement of people's living standards, people pay more and more attention to clothing. In recent years, it has been popular to use PU film composite fabrics to make down jackets or jackets. [0003] In the past, the thinnest PU film was generally 12μm, and it could not be implemented any thinner. Recently, ultra-thin fabrics are popular for bonding. If the PU film is still too thick before, the style is not good. According to the needs of the society, we have developed an ultra-thin PU film 1μm-4.9μm. Contents of the invention [0004] The purpose of the present invention is to provide an ultra-thin PU film of 1 μm-4.9 μm to achieve the purpose of being light and elastic, suitable for laminating any fabric, rebounding and anti-wrinkle. [0005] In order to achieve the above object, the present invention provides the following techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/08B32B27/18B32B27/40B32B33/00B29D7/01C08J5/18C08L101/12
CPCB29D7/01B32B27/08B32B27/18B32B27/32B32B27/40B32B33/00B32B2307/50B32B2307/51B32B2437/00C08J5/18C08J2300/00
Inventor 沈红霞
Owner WUJIANG HANTA TEXTILE FINISHING
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