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How to determine the different customer the vacuum plating aluminum composite film bag how thick aluminum plating layer respectively?

by：Kolysen 2020-12-01

To determine the different customer the vacuum plating aluminum composite film bag need more thick aluminum plating layer, it depends on what kind of basement membrane, basilemma, aluminum layer thickness is different, the income of vacuum aluminum plating composite film bags of blocking performance is also different. In the table below is different aluminum vacuum aluminum plating layer thickness of barrier property: / aluminum project basement membrane layer thickness? / [02004006008001000 water vapor transmittance g/( ㎡压力; 24h) ] PET( 12μm) 39. 92. 10. 60. 30. 30. 3 opp ( 25μm） 4. 81. 30. 50. 50. 40. 4LDPE（ 25μm） 18. 92. 20. 70. 60. 40. Oxygen transmission rate that is 3 / [ ml/( ㎡压力; 24 h· atm) ] PET( 12μm) 1204517633OPP（ 25μm） 12256135181512LDPE（ 25μm） - PET (200020034121110 light transmittance / % 12μm) 84233100 opp ( 25μm） 94243＜100LDPE（ 25μm） 87153 < 100 vacuum aluminum plating composite film features: one is with metallic luster, adornment sex is strong, but had not the strength of the aluminum foil is low, cannot bend, after many times of flexure declining barrier property; 2 it is greatly improve the barrier property of plastic film, has excellent resistance, water resistance, avoid light, oxygen uv and infrared ray; After three is aluminized still keep the physical properties of the base material. Of course many basilemma aluminized after physical and mechanical properties is up a lot of changes; Four is aluminized layer is not water resistant, especially hot water and steam. Fifth, aluminum plating thickness reaches a certain, film base material with electromagnetic shielding.