7 Micron Alu Foil For Lamination Grade Application is an important base material for flexible packaging

7 Micron Alu Foil For Lamination Grade Application is an important base material for flexible packaging, and it is a packaging material that cannot be replaced so far, with a wide range of uses. In modern packaging, Aluminum Foil is used as a barrier layer in almost all composite materials that require opaque or high-barrier products.Thickness is one of the most basic and very important physical properties of aluminum foil. Its thickness has a certain relationship with its barrier properties. As the thickness of aluminum foil increases, its transmittance to oxygen, water vapor, light, etc. gradually decreases, and accordingly its barrier properties are higher.
Alloy:8011,1235,8079
Temper:O
Thickness:0.0055mm-0.03mm
Width:200mm-1600mm
Surface:One side matt,one side bright
Packaging:Free fumigated wooden box

Temper	O
Type	Aluminium foil for laminated
Use	To be use for food packaging/cigarette packaging after lamination
Surface	One side matt,one side bright
Certification	ISO, CE, ISO9001

In addition, it should also be pointed out that the thickness of the 7 Micron Alu foil for Lamination Grade Application must be uniform, if the thickness is not uniform, it is easy to cause problems in production. First of all, if the thickness is inconsistent, it will be difficult for the adhesive to be uniform during the compounding process of the aluminum foil, thereby affecting the compounding strength with the plastic film; secondly, if the thickness is inconsistent, the roll will be loose and tight, and there will be left and right rolls during the compounding process. The wobble phenomenon can easily lead to foil breakage after the tension is applied to the winding, which is very unfavorable for the smooth progress of the lamination process.

When the aluminum foil is composited with other substrates, its surface cleanliness has a decisive influence on the composite strength. If its surface cleanliness is relatively poor and there are residual oil stains, the composite strength is relatively poor. In the rolling manufacturing process, a large amount of lubricating oil is used, and the rolled aluminum foil should be cleaned with organic solvent acetone before rolling, and the lubricating oil used during rolling is cleaned.

In the composite flexible packaging, the surface cleanliness of the aluminum foil is required to be high, generally it should reach B grade or above, and there is no uneven oil pollution, so as to ensure that the composite adhesive has a good wetting effect on the surface, otherwise it will affect the product. composite quality. Therefore, in actual production, we should remember to strictly control the quality, and be sure to do a good job of testing the cleanliness of Aluminum Foil Jumbo Roll 8011 Food Grade, which cannot be ignored.

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