The manufacturer specializes in printing customized food trial packaging automatic packaging roll film

With the popularization of automatic operation, automatic food packaging film has been widely used in daily production, but some people do not know it very well.

1. What is the common food automatic packaging roll film?

Automatic packaging roll film refers to a kind of packaging material used in packaging and packaging, which has tensile effect. In the application of automatic packaging roll film, it can save materials, labor and time. Automatic packaging roll film is commonly used in packaging papermaking, logistics, chemical industry, plastic raw materials, building materials, food, glass and other aspects.

2. Classification of roll film for automatic packaging of general food

Ordinary food automatic packaging roll film can be divided into two kinds according to the way of use. One is used on the automatic packaging machine, which can automatically pack things and seal automatically; In addition, when buying vegetables and water in the supermarket, there is a kind of cylindrical plastic packaging bags, which are connected to each other. When they are used, they are torn off one by one. Its bottom end is sealed, that is, superimposed and connected plastic packaging bags, which are also automatic packaging films.

The automatic packaging roll film can be roughly divided into five categories according to the material, including photocatalytic inorganic antibacterial agent film, polymer antibacterial agent film, composite antibacterial agent film, inorganic antibacterial agent film and organic antibacterial agent film. Each film has its own different material composition and use. Because the automatic packaging roll film can protect food, maintain the freshness of food, prevent bacteria and dust, and extend the shelf life of food, the automatic packaging roll film has been widely used.

The application scope of LDPE includes food packaging, fiber products packaging, daily chemical products packaging, pharmaceutical packaging, etc. it can also be used as the heat sealing layer of composite flexible packaging materials. LDPE is a non-toxic and tasteless heat sealing material.

LDPE features:

a. Stable chemical properties, insoluble in general solvents, excellent moisture resistance and drug resistance

b. High permeability, poor fragrance retention and poor grease resistance

c. Large elongation, high impact strength, good flexibility and toughness

d. Excellent cold and low temperature resistance, but not high temperature resistance

e. Non toxic, five flavor, odorless, good transparency

f. The softening temperature of the film is 80-90 ° C, the melting point is 110-120 ° C, and the heat sealing property is excellent

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