Large hook face die surface protection film
A surface protective film and mold technology, which is applied to the sealing of the seam between the surface protective film of the mold and the surface protective film of the complex curved mold, can solve the problems of difficult recycling, frequent tape replacement, high temperature, etc. The effect of realizing seamless connection and reducing the cost of use
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[0060] As an embodiment of the present invention, the thickness of the grid cloth air-guiding layer is 5-20 μm.
[0061] As an embodiment of the present invention, the thickness of the pressure-sensitive adhesive self-adhesive layer is 40-150 μm.
[0062] As an embodiment of the present invention, the thickness of the polymer functional layer is 40-200 μm.
[0063] As an embodiment of the present invention, the total thickness of the mold surface protection film is less than 300 μm, more preferably 100-250 μm.
[0064] construction technology
[0065] The various layers of the mold surface protection film are compounded together by thermal compounding.
[0066] The pressure-sensitive adhesive self-adhesive layer does not require heat activation when applied to the mold surface and can be applied between -35°C.
[0067] According to needs, the mold surface protective film can cover part or all of the mold surface, and the protective film is pasted on the mold surface in the ...
Embodiment approach 1
[0072] Embodiment 1: Embodiment 1 of the present invention provides a large-scale curved surface mold surface protection film, which sequentially includes a grid cloth air-conducting layer, a pressure-sensitive adhesive self-adhesive layer and a polymer functional layer from the surface of the mold to the outside;
[0073] Wherein, the polymer functional layer does not adhere to the cured epoxy resin.
Embodiment approach 2
[0074] Embodiment 2: The surface protection film of a large curved surface mold described in Embodiment 1, the raw material for the preparation of the grid cloth air-conducting layer is one of glass fiber, polyester fiber or nylon fiber.
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