Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for manufacturing mist surface release films used for pressure sensitive adhesive (PSA)

A production method and technology of release film, which can be used in devices for coating liquid on the surface, polyurea/polyurethane coatings, coatings, etc., and can solve the problems of poor release, inconsistent depth, uneven film surface unevenness, etc. , to achieve the effect of stable peeling force, cost saving and convenient operation

Active Publication Date: 2013-08-21
太仓斯迪克新材料科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: the depth of grinding is inconsistent, the unevenness of the surface of the film causes the peeling force of the release film to be unstable, and there is a risk of poor release, and the haze of the pressure-sensitive adhesive surface is uneven, resulting in product waste

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: a kind of manufacture method of pressure-sensitive adhesive with fog surface release film, its manufacture process is as follows:

[0038] The first step: clean the surface of the film substrate, that is, the PET film.

[0039] Step 2: Prepare the matte release agent

[0040] First, prepare the materials according to the following mass percentages:

[0041] Hydroxy silicone oil 35%;

[0042] Curing agent 2%;

[0043] Catalyst 6%;

[0044] Polyurethane adhesive 35%;

[0045] Fumed silica 4%;

[0046] Filler 18%.

[0047] Note, the % in the table represents the mass percentage content.

[0048] The curing agent is methyl hydrogen-containing silicone oil; the catalyst is platinum; the filler is talcum powder with a particle diameter less than or equal to 15 microns; the viscosity of the hydroxy silicone oil is 14000 cps. The viscosity of the polyurethane adhesive is 2300 cps.

[0049] Then, put the material in the container and stir evenly with a sti...

Embodiment 2

[0054] Embodiment two: a kind of manufacture method of pressure-sensitive adhesive with fog surface release film, its manufacture process is as follows:

[0055] The first step: clean the surface of the film substrate, that is, the PET film.

[0056] Step 2: Prepare the matte release agent

[0057] First, prepare the materials according to the following mass percentages:

[0058] Hydroxy silicone oil 30%;

[0059] Curing agent 3%;

[0060] Catalyst 5%;

[0061] Polyurethane adhesive 33%;

[0062]Fumed silica 2%;

[0063] Filler 27%.

[0064] The curing agent is methyl hydrogen-containing silicone oil; the catalyst is platinum; the filler is talcum powder with a particle diameter less than or equal to 15 microns; the viscosity of the hydroxy silicone oil is 8000 cps. The viscosity of the polyurethane adhesive is 2000 cps.

[0065] Then, put the material in the container and stir evenly with a stirrer at a stirring speed of 300 rpm.

[0066] Step 3: Coating a layer of p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Viscosityaaaaaaaaaa
Viscosityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for manufacturing mist surface release films used for pressure sensitive adhesive (PSA). The method includes the steps of firstly, painting a layer of mist surface release agent on a thin film substrate, and then drying the mist surface release agent. According to the raw material formula of the mist surface release agent, the mist surface release agent is composed of 30-35% of hydroxy silicone oil, 2-3% of curing agent, 2-6% of catalyst, 3-42% of polyurethane adhesive, 2-4% of gas phase silicon dioxide and 16-27% of filler. The curing agent is methyl hydrogen silicone oil; the catalyst is platinum; the filler is talc powder with the particle diameters less than or equal to 15 microns; the viscosity of the hydroxy silicone oil is 8000-16000 cps; the viscosity of the polyurethane adhesive is 2000-3000 cps. The method for manufacturing the mist surface release films used for the PSA is simple, saved in cost, convenient to operate and capable of producing the mist surface release films which are stable in release force and make the mist degree effect on a pressure sensing adhesive surface very good, and making the adhesive surface achieve a low reflective effect.

Description

technical field [0001] The invention relates to a method for manufacturing a matte release film for pressure-sensitive adhesives, and belongs to the technical field of release material preparation. Background technique [0002] The release film is coated with silicone release agent on the surface layer of environmentally friendly PET, PE, OPP film substrates, so that it can exhibit extremely light and stable release force for various organic pressure-sensitive adhesives. [0003] Different organic pressure-sensitive adhesives, such as hot-melt adhesives, acrylic adhesives, and pressure-sensitive adhesives of rubber systems, etc., require different release forces of the release film. Correspondingly adjusted to achieve an extremely light and stable release force during peeling. [0004] In order to make the rubber surface of the pressure-sensitive adhesive reach a certain degree of concave-convex shape, the rubber surface has a certain degree of haze (roughness) and low refl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B05D7/24C09D183/06C09D175/04C09D7/12
Inventor 金闯
Owner 太仓斯迪克新材料科技有限公司