Pe Gilt plastic gift bag PE Gilt plastic gift bag PE Gilt gift bag PE Gilt plastic gift bag
Pe Bronzing plastic gift bags commonly used in food packaging plastic bags are made of polyethylene film, non-toxic, can be used for holding food. The other film is made from polyvinyl chloride, which is non toxic. However, according to the use of film, additives are often harmful to the human body, with a certain degree of toxicity. Therefore, the film and film made of plastic bags are not suitable for food storage. It can also stick things, easy to operate. The raw material polyethylene (PE) is called Pe. It is a polymer organic compound formed by addition polymerization of ethylene. Polyethylene is recognized as the best food contact material in the world. Non-toxic, tasteless, tasteless, in line with the hygiene standards of food packaging. Polyethylene film, light and transparent, with moisture resistance, oxygen resistance, acid resistance, Alkali resistance, general air tightness, excellent heat sealing performance. Plastic packaging printing is the most important material. PVCPVC, abbreviated as PVC, is the most important type of vinyl polymer and the second largest plastic in the world after polyethylene.
Shrinkfilm Shrinkfilm Shrinkfilm & AMP; 40; Shrinkfilm & amp; 41; is a thermoplastic film that is stretched and oriented during production and shrinks during use by hot air treatment or infrared radiation. After heat treatment, the film is tightly wrapped on the package, the shrinkage force reaches the maximum during the cooling stage, and can be kept for a long time. Low-density polyethylene Low-density polyethylene, or LDPE, is the most widely used in the plastic packaging and printing industry. It has a specific gravity of 0.92 ~ 0.93 and can float in water. Low crystallinity 40,60% & amp; 41; bulk polymerization under 1000 ~ 3000KGC ~ 2 pressure, also known as high-pressure polyethylene. At 23 °C, the density is about 0.92. Suitable for food packaging, fiber products packaging, daily chemical products packaging. High-density polyethylene, high-density polyethylene, or HDPE. It's low-pressure polymerized, hence the name low-pressure polyethylene. Milky White, poor surface gloss. The film can be blow-moulded and extruded in a t-die. It is heat-resistant, steam-resistant, cold-resistant, frost-resistant and so on. With Good moisture-proof, wind-proof, insulation performance, not easy to damage. It's twice as strong as a Low-density polyethylene. Easy to open. BOPP -- BOPP -- BOPP -- BOPP -- BOPP -- BOPP -- BOPP, its Molecular Orientation, mechanical strength, folding strength, air tightness, moisture resistance and barrier properties are better than those of common plastic film. Compared with cellophane, the unit price is lower than cellophane. Because of the excellent transparency of the film, the color reproduction after printing is particularly bright and beautiful. It is an important base material for plastic composite flexible packaging.
For the characteristics of plastic bag printing ink, the following requirements are put forward: Modern printing equipment is developing towards multi-color online printing. Therefore, the ink must have the characteristics of rapid drying, that is, ink transfer to the printing material after rapid fixation and drying to meet the requirements of high-speed multi-color continuous printing equipment. In order to ensure the printing quality and efficiency, it will not be in the printing machine ink hopper and roller on the rapid drying and fixed shell, thus avoiding the normal printing obstacles. Three. Requires that the ink can not react with the printing plate, can not corrode the printing plate, so as not to reduce the printing plate resistance. Each batch of printing bags with the same ink color corresponds to the same, conjunctival firm, printing does not fade, overprinter can produce light. In addition to transparent ink, a variety of ink should have a certain hiding power, and overprinter ink should maintain the original basic color features. Toxicity test showed that the polyethylene film was opalescent and translucent. This is especially true when stacked in layers. Feel smooth, the surface seems to be coated with a layer of wax, shake hard, sound very brittle. Meet fire flammable, flame is yellow, burning when there is a drop of mucus, there is the smell of burning candles. FOR EXAMPLE: PEPVC FILM & GENERAL TOXIC TYPE 1, high pressure polyethylene bag 2, low pressure polyethylene bag 3, polypropylene plastic bag 4, PVC PLASTIC BAG 5, compound plastic bag type: plastic bag material: HDPE plastic bag, LDPE plastic bag, EVA plastic bag, CPE plastic bag, PPE plastic bag, OPP plastic bag, PP plastic bag, PVC plastic bag, etc. . Plastic bags do bring convenience to people's life, but this temporary convenience brings long-term harm. The recycling value of plastic bags is relatively low. In the process of using, besides the "visual pollution" caused by scattered in city streets, tourist areas, water bodies, roads, railways, etc. , there are also potential hazards. It is not easy to be degraded by natural microorganisms, in the natural environment for a long time is not easy to separate. This means that if the waste plastic waste is not recycled, it will become a pollutant in the environment, and will exist permanently and continue to accumulate, causing great harm to the environment.