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Different types of heat-sealing materials have different heat-sealing strengths, such as PP, PE, and EVA heat-sealing strengths are inconsistent; products of the same film with different polymerization methods have different heat-sealing strengths; the thickness and uniformity of materials will also affect heat-sealing Strength, different processing methods of the heat seal layer, such as blow molding, cast film, etc.  

The packaging of consumed foods can be divided into convenient food, puffed food, pastries & biscuit, dairy product & baked goods, candy & preserved fruit, meat product, pre-made food, roasted nuts, frozen food,health care, grain & oil, sauce, wine & beverage, tea & instant drink etc.  

Polyethylene (PE) is made by polymerization of ethylene monomer, nCH₂ = CH₂ →（—CH₂—CH₂—)_n, while n is implying the degree of polymerization. With the relative molecular weight is above 50000, polyethylene is the most consumed variety among all the plastic packaging films.

The packaging of consumed foods can be divided into convenient food, puffed food, pastries & biscuit, dairy product & baked goods, candy & preserved fruit, meat product, pre-made food, roasted nuts, frozen food,health care, grain & oil, sauce, wine & beverage, tea & instant drink etc.

The packaging of consumed foods can be divided into convenient food, puffed food, pastries & biscuit, dairy product & baked goods, candy & preserved fruit, meat product, pre-made food, roasted nuts, frozen food,health care, grain & oil, sauce, wine & beverage, tea & instant drink etc.

（1）The inner side of the overprint mark line is 2mm from the edge of the effective pattern; the width of the bar code is 1mm, and the length is 6mm.

This issue is common in PET (printing film)/aluminum foil lamination. Aluminum foil adhesives generally have higher viscosity than other flexible packaging adhesives. When the thickness distribution of multicolor ink is uneven, the adhesive may not fully fill the ink pits during curing, resulting in visible white spots.

This issue is common in PET (printing film)/aluminum foil lamination. Aluminum foil adhesives generally have higher viscosity than other flexible packaging adhesives. When the thickness distribution of multicolor ink is uneven, the adhesive may not fully fill the ink pits during curing, resulting in visible white spots.

LD PACKAGING CO., LTD(shortened to LD PACK) is continuing to make unremitting efforts in research and development of recyclable packaging. As early as 2014, when the BOPE was introduced, LD PACK successfully developed mono-PE structure and launched a recyclable slider zipper pouch.