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Characteristics of plastic substrates for food bags

Food bag plastic compared with packaging materials such as paper, broken high, and metal ,Has the following characteristics: (l)light in mass,good transparency,Soft and beautiful. (2)Good waterproof and moisture-proof performance. (3)Processability and container formability are good. (4)Very good chemical stability ,Good corrosion resistance to acids, alkalis and other chemicals. (5)Has moderate mechanical strength and good barrier […]

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How to identify plastic film for food bags?

There are many types of plastic films, and their appearance is often very similar. therefore,It is often easy to be confused in the production of composite processes, resulting in differences in product performance.Even production accidents such as scrapping. For technical personnel engaged in the flexible packaging industry, mastering the usualThe method of identification with flexible […]

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Characteristics of extrusion compounding and extrusion coating process for food bags

The food bag extrusion compounding and extrusion coating process is suitable for the compounding of various substrates. According to the requirements of product packaging, the food bag extrusion compounding and extrusion coating process is designed as required. 1. The production speed is fast, and it is suitable for mass production. The average composite linear speed […]

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Classification of composite substrates for food bags

According to different standards and requirements, composite materials usually have the following classification methods. (l) It can be divided into junction composite and functional composite according to different service properties. (2) The connector matrix materials can be divided into tree month, speech matrix composites, metal matrix composites, and inorganic non-metallic matrix composites. (3) According to […]

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Preparation and Application of Adhesive in Food Bag Production

For different applications, different proportions of silica and soda can also be added according to the use requirements. For example, the formula of glue is asbestos cement: 2.268kg aluminum oxide: 0.226 sodium silicate 3.785L. The new formula is: sodium silicate as adhesive, metal oxide or hydrogen oxide as curing agent, and silicon oxide or aluminum […]

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Introduction of printing ink for food bags

At present, the most widely used printing ink for plastic food packaging is benzene-soluble chlorinated polypropylene ink series. This series of inks have good gel-forming properties and gloss, and the drying speed is relatively fast. Usually, gravure printing and BOPP (biaxially oriented polypropylene) matte film are used for inner printing, and the production process and […]