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Manufacturing method of release film for organic pressure sensitive adhesive
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A manufacturing process and release film technology, applied in the direction of adhesives, film/sheet adhesives, coatings, etc., can solve problems such as poor release, inconsistent depth, uneven film surface, etc., to achieve saving The effect of cost, convenient operation and simple manufacturing process
Active Publication Date: 2015-06-10
太仓斯迪克新材料科技有限公司
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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
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Embodiment 1
[0038] Embodiment 1: A kind of manufacturing process for the release film of organic pressure-sensitive adhesive, its manufacturing process is as follows:
[0039] The first step: clean the surface of the film substrate, that is, the PET film.
[0040] Step 2: Prepare the matte release agent
[0041] First, prepare the materials according to the following mass percentages:
[0042] Hydroxy silicone oil 27%;
[0043] Curing agent 2%;
[0044] Catalyst 6%;
[0045] Polyurethane adhesive 42%;
[0046] Fumed silica 3%;
[0047] Filler 20%.
[0048] The curing agent is methyl hydrogen 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 hydroxyl silicone oil is 8000 cps. The viscosity of the polyurethane adhesive is 2000 cps.
[0049] Then, put the material in the container and stir evenly with a stirrer at a stirring speed of 300 rpm.
[0050] Step 3: Coating a layer of prepared...
Embodiment 2
[0054] Embodiment two: a kind of manufacturing process for the release film of organic pressure-sensitive adhesive, its manufacturing 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 25%;
[0059] Curing agent 1%;
[0060] Catalyst 5%;
[0061]Polyurethane adhesive 50%;
[0062] Fumed silica 3%;
[0063] Filler 16%.
[0064] Note, the % in the table represents the mass percentage content.
[0065] The curing agent is methyl hydrogen 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 hydroxyl silicone oil is 10000 cps. The viscosity of the polyurethane adhesive was 2100 cps.
[0066] Then, put the material in the container and stir evenly with a stirrer...
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Abstract
The invention discloses a manufacturing method of a release film for an organic pressure sensitive adhesive. The manufacturing method comprises the following steps of: firstly coating a layer of matte release agent on a film substrate, and then drying the matte release agent, wherein the matte release agent comprises the following raw materials: 25-27% of hydroxyl silicone oil, 0.5-2% of curing agent, 5-6% of catalyst, 42-55% of polyurethane adhesive, 3% of fumed silica, and 16-27% of filling, the curing agent is methyl hydrogen silicone oil, the catalyst is platinum, and the filling is talcum powder with the particle diameter less than or equal to 15 microns. The manufacturing method disclosed by the invention is simple in manufacturing process and convenient to operate, and cost can be saved; and the matte release film which is stable in stripping force and endows the surface of the pressure sensitive adhesive with a good haze effect can be prepared so that the adhesive surface can achieve a low light reflection effect.
Description
[0001] The original application number is 2011101942641, the application date is July 12, 2011, and the title of the invention is: a method for making matte release paper. technical field [0002] The invention relates to a manufacturing process of a release film used for organic pressure-sensitive adhesives, and belongs to the technical field of release material preparation. Background technique [0003] 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. [0004] 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. [0005] In order t...
Claims
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Application Information
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