Electromagnetic inductive composite aluminum foil seal gasket and manufacturing process therefor
A composite aluminum foil, electromagnetic induction technology, applied in the direction of adhesive type, film/sheet adhesive, epoxy resin glue, etc., to achieve the effect of not easy to fall off, improve printing quality, and improve temperature resistance
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[0031] Such as figure 1 The electromagnetic induction composite aluminum foil sealing gasket shown is composed of tissue paper as the base material layer 1 and the aluminum foil layer 4 bonded by the adhesive layer 2. The upper surface of the aluminum foil layer 4 is coated with a sealing film layer 3, and the lower surface is coated with There is an adhesive sealing layer 5, and the adhesive layer 2 is made of rosin and / or terpene resin added to paraffin wax accounting for 1%-5% of the total amount of the adhesive. The sealing film layer 3 is made of BOPP or PET film, and characters or patterns are reverse printed on the surface of the BOPP or PET film. Adhesive is coated on the lower surface of the adhesive sealing layer 5 . The adhesive is prepared by mixing 60%-90% of epoxy resin and 10%-40% of vinyl acetate. One ten-thousandth to two ten-thousandths of the magnetic powder is added to the adhesive sealing layer (5) or / and the adhesive. It is advisable to use the same ra...
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