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Method for making fogging surface release film
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A production method and technology of release film, which is applied to the device for coating liquid on the surface, polyurea/polyurethane coating, coating, etc., which can solve the problems of poor release, inconsistent depth and uneven surface of the film, etc. , to achieve the effect of simple production process, stable peeling force and cost saving
Active Publication Date: 2013-08-07
太仓斯迪克新材料科技有限公司
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Abstract
Description
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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
[0042] Embodiment one: a kind of manufacture method of fog surface release film, its manufacture process is as follows:
[0043] The first step: clean the surface of the film substrate, that is, the PET film.
[0044] Step 2: Prepare the matte release agent
[0045] First, prepare the materials according to the following mass percentages:
[0046] Hydroxy silicone oil 27%;
[0047] Curing agent 2%;
[0048] Catalyst 6%;
[0049] Polyurethane adhesive 42%;
[0050] Fumed silica 3%;
[0051] Filler 20%.
[0052] 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.
[0053] Then, put the material in the container and stir evenly with a stirrer at a stirring speed of 300 rpm.
[0054] Step 3: Coating a layer of prepared matte release agent on o...
Embodiment 2 5
[0058] Embodiment 2-5: A kind of production method of matte release film
[0059] 1. The raw material formula of the matte release agent is shown in the following table:
[0061] Note, the % in the table represents the mass percentage content.
Embodiment 2
[0062]The viscosity of the hydroxy silicone oil described in Example two is 10000cps. The viscosity of the hydroxy silicone oil described in Example three is 14000cps. The viscosity of the hydroxy silicone oil described in Example 4 is 16000 cps. The viscosity of the hydroxyl silicone oil described in Example five is 13000cps.
[0063] The viscosity of the polyurethane adhesive described in Example 2 is 2100cps. The viscosity of the polyurethane adhesive described in Example 3 is 2300cps. The viscosity of the polyurethane adhesive described in Example 4 is 2500 cps. The viscosity of the polyurethane adhesive described in Example five is 2700cps.
[0064] Two, preparation method is the same as embodiment one.
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Abstract
The invention discloses a method for making a fogging surface release film. The method comprises the following steps of: coating a layer of fogging surface release agent on a film substrate; and drying the fogging surface release agent. The raw material formula of the fogging surface release agent consists of 25-35 percent of hydroxyl silicone oil, 0.5-4 percent of curing agent, 2-8 percent of catalyst, 15-55 percent of polyurethane adhesive, 0.3-5 percent of gas-phase silicon dioxide and 10-50 percent of filler, wherein the curing agent is methyl hydrogen-containing silicone oil; the catalyst is platinum; and the filler is talc powder of which the particle diameter is less than or equal to 15 microns. The method has a simple production process, and is convenient to operate; and by adopting the method, the cost is saved, a fogging surface release film which has stable release force and contributes to enhancing the haze effect of a pressure-sensitive adhesive surface can be produced, and a low-reflection effect is achieved for the adhesive surface.
Description
technical field [0001] The invention relates to a method for manufacturing a matte release film, 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 reflection effect, and there is a com...
Claims
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Application Information
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