Preparation method of gum
A technology of self-adhesive and double-sided adhesive, applied in the direction of adhesives, film/sheet adhesives, metal processing, etc., can solve the problems of easy generation of foreign objects, high manufacturing costs, easy size deviation, etc., to achieve the effect of ensuring accuracy
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[0021] The following is a detailed description of the preparation method of the back-shaped back glue (frame glue) once punching and forming waste with the accompanying drawings.
[0022] Fit: see figure 1 , Attach the double-sided tape 1 to the release surface of the release film (B release film) 2 with 60g±5g release force; after tearing off the release paper that comes with the double-sided tape, apply 3-5g release force The release surface of the release film (A release film) 3 is attached; the 40G protective film (C protection film) 4 is attached to the non-release surface of the release film with a release force of 60g±5g.
[0023] Die cutting: see figure 2 , 3 , Use a forming knife die to punch on the laminated material. The knife die faces the release film with 3-5g release force. The inner frame of the knife die cuts the release film and double-sided tape with 3-5g release force. The outer frame of the mold cuts 3-5g release film, double-sided tape, 60g±5g release film; 3...
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