PE plastic packaging film reference standard

PE plastic packaging film, is to choose the film grade of polyethylene particles, by blowing up or stretch processing methods, processing into a thickness of 0. 002 - 0. The membrane fixed form of 3 mm. With the popularity of plastic packaging products, PE plastic packaging film in the market share is more and more big, widely used in hardware machinery, auto parts, logistics, express, furniture appliances, food, medicine, clothes, chemical industry and so on all walks of life, these products have brought great convenience to people's life. Different varieties of plastic packaging film performance is different, choose when we need to according to the plastic packaging film has some of the basic functions, mainly the protection of goods, sales promotion, the adaptability of packaging machinery and other applications on the special demand of consideration, the following article 13, we call it article 13 of the reference standard: 1. Protection function as packaging materials, plastic film to protect the goods function is the most important, the most basic function. If plastic film on the packaging of goods without reliable protection, cause the goods damage or depreciation, it lost as the use value of packaging materials. Plastic film to protect the goods function is various, different products, different forms of packaging, for the emphasis of the plastic packaging film protection requirements are also different. 2. Mechanical protection to prevent packing goods inside leakage or foreign materials into the damage to the goods and pollution. Directly reflect the plastic film of the mechanical performance of the protection function, mainly film mechanical strength, impact strength, such as tensile strength, tear strength, fall ( Outbid impact) And the puncture strength and so on. 3. Good welding strength of welding strength is plastic film bag necessary conditions to protect the goods in a reliable way. If the weld strength is insufficient, the weld will be the Achilles' heel of the plastic film bag, plastic bags lost due to weld cracking effect on the protection of the goods. 4. Blocking performance blocking performance refers to the plastic film to prevent oxygen, carbon dioxide, nitrogen and other gases and aroma, water vapor and other substances through the performance of the uncertain scope, more commonly refers to the nonpolar gas such as oxygen, carbon dioxide, and nitrogen in the block. Plastic film on the stand or fall of commodity display effect and light transmittance of the film itself, haze, gloss, antistatic, printing is in close relationship to cause foot light transmittance and fog degree enough attention. 5. Light transmittance and fog light transmittance and fog degrees is decided to be packaged goods visibility and clarity of important indicators, especially on the relationship between the commodity display effect. Light transmittance and fog degrees are expressed as a percentage, the greater the light transmittance of value, show the transparency of film is better; And the greater the degree of fog, said through the film to observe the greater the turbidity of the object, namely clarity. 6. Luster gloss said plastic film when love light reflective ability, to sample in the regular reflection direction, relative to the standard of surface reflectance brightness percentage said. 7. Antistatic ability with the rapid development of electronic industry, electronic circuit board integration is higher and higher. With antistatic film packaging products to prevent electrostatic damage to integrated circuits. 8. Good smooth good smooth will make packaging film on the packaging production line of mobile, avoid its mobile damaged because of too much resistance. Film smooth sex can through the describe the size of the coefficient of friction. The smaller the coefficient of friction, the more smooth sexual performance. 9. High temperature resistant performance is often need to consider is resistant to high and low temperature properties of membrane, such as cold storage, frozen food plastic packaging film, in particular, needs to have good low temperature resistance; Cooking food with plastic packaging film, needs to have good resistance to high temperature performance and so on. 10. Health performance when packing food or pharmaceuticals, the selection of plastic packaging film must have a good health performance, in line with the requirements of the relevant state health standards, to ensure that the plastic film will not cause pollution to the packaging of goods. 11. Air tightness good air-tightness, can effectively cut off both inside and outside packaging container gas exchange, it is necessary for most products. 12. Moisture resistance good moisture resistance is a means of effectively protect goods, general plastic film of moisture resistance increase with the increase of the thickness of the, along with the decrease of temperature. 13. Oil resistance to oily food, such as sausage, bacon, etc. , its packaging film must be resistant to oil, otherwise it will affect the quality of the product.