Advantages and properties of BOPET film introduced by aluminum foil bag manufacturer
BOPET film has the following advantages:
① Good mechanical properties, good rigidity and high strength.
② It has excellent cold resistance and heat resistance. The suitable temperature range is - 70 ~ 150 ℃.
③ Good resistance to water, gas and fragrance.
④ BOPET film has good antistatic property and is easy to be plated in vacuum. It can be coated with PVDC to improve its heat sealing, barrier property and printing adhesion
⑤ Resistant to grease and most solvents, weak acid and alkaline liquids. The disadvantage of BOPET film is poor puncture resistance.
Properties: due to the polar groups in the molecular structure, the surface tension of BOPET film after corona treatment can reach b2mn / m, which is very favorable for printing and lamination. Aluminum foil bag manufacturers introduced that when BOPET film and other heat sealing materials (such as CPP film) are used to make bags, the temperature of the hot sealing knife is as high as 220 ~ C, and the BOPET film will not melt and deform, and will not stick to the knife, which is conducive to the smooth progress of the bag making process of the composite film. Sometimes, BOPA / / BOPET / / CPP structure composite packaging bags are also produced. At this time, both sides of BOPET film must be bonded and compounded with adhesive. Therefore, the BOPET film with corona treatment on both sides should be selected. The surface tension of both sides should be above 50Mn / m, so as to ensure that the two sides are firmly bonded. http://www.dgbpk.com/
Dongguan Beite packaging materials Co., Ltd
Dongguan special bag, plastic bag, plastic bag, plastic bag