A kind of aluminum foil sealing film with half pull ear and easy to peel off and preparation method thereof
A technology of semi-pulling and sealing film, applied in the field of semi-pulling and easy-release aluminum foil sealing film, can solve the problems of uneven sealing strength, difficult storage of sealing film, poor stability, etc., achieve uniform distribution, improve heat-sealing strength and heat-sealing stability Sex, close contact effect
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Embodiment 1
[0039] An aluminum foil sealing film with half-twist and easy-to-open ears, which is provided with a protective layer and an adhesive layer sequentially from top to bottom; the protective layer is composed of an integrally formed adhesive part and a free part, and the adhesive part and free part are formed from the The first BOPET film layer 1 with a thickness of 20 μm and the PE film layer 2 with a thickness of 10 μm are arranged in sequence from bottom to bottom; the second BOPET film layer 3 with a thickness of 12 μm and a thickness of An aluminum foil layer 4 with a thickness of 7 μm and a heat-sealing layer 5 with a thickness of 10 μm; the bonding of the PE film layer 2 in the bonding part and the second BOPET film layer 3 in the bonding layer is an integral structure, the The free part constitutes a lug structure; wherein the area of the bonding part accounts for 1 / 2 of the area of the aluminum foil sealing film, and the heat-sealing layer 5 is made of 80wt% EVA with ...
Embodiment 2
[0047] An aluminum foil sealing film with half-twist and easy-to-open ears, which is provided with a protective layer and an adhesive layer sequentially from top to bottom; the protective layer is composed of an integrally formed adhesive part and a free part, and the adhesive part and free part are formed from the The first BOPET film layer 1 with a thickness of 30 μm and the PE film layer 2 with a thickness of 14 μm are arranged in sequence from bottom to bottom; the second BOPET film layer 3 with a thickness of 14 μm and a thickness of An aluminum foil layer 4 with a thickness of 12 μm and a heat-sealing layer 5 with a thickness of 20 μm; the bonding of the PE film layer 2 in the bonding part and the second BOPET film layer 3 in the bonding layer is an integral structure, and the The free part constitutes the ear structure; wherein the bonding part accounts for 2 / 3 of the entire aluminum foil sealing film area, and the heat-sealing layer 5 is made of 84wt% of EVA with a melt...
Embodiment 3
[0054] An aluminum foil sealing film with half-twist and easy-to-open ears, which is provided with a protective layer and an adhesive layer sequentially from top to bottom; the protective layer is composed of an integrally formed adhesive part and a free part, and the adhesive part and free part are formed from the The first BOPET film layer 1 with a thickness of 35 μm and the PE film layer 2 with a thickness of 18 μm are arranged in sequence from bottom to bottom; the second BOPET film layer 3 with a thickness of 15 μm and a thickness of An aluminum foil layer 4 with a thickness of 20 μm and a heat-sealing layer 5 with a thickness of 30 μm; the bonding of the PE film layer 2 in the bonding part and the second BOPET film layer 3 in the bonding layer is an integrated structure, and the The free part constitutes a lug structure, wherein the area of the bonding part accounts for 1 / 2 of the area of the aluminum foil sealing film, and the heat-sealing layer 5 is composed of 87wt...
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Abstract
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