fred perry outlet Why do poor _1701 composite film

Why do poor composite film openings

Size is different odor, PP smell slightly smaller classes, PE classes larger, EVA as poor thermal stability, more odor. There are a lot of resin additives, such as heat stabilizers, antioxidants, slip agents, in forming odor when the escape is also an important reason. 3. PE film blowing,[link widoczny dla zalogowanych], cast PE film prior to choosing a few additives, odor small raw materials, proper control of processing temperature, control the use of regrind, the PE substrate odor small. 4. Other aspects of rehabilitation in the crowd, blown film processing equipment such as have a good exhaust function is necessary. When the heating bag will have a smell, one should try to reduce the sealing temperature, on the other hand the system will be good bags before placing a bandage. Ripening room should be cooled out after the bag film roll. Permeability of paper packaging used, the solvent can gradually volatile. (River Valley) Why do composite membrane open, I ~ - mostly poor, poor opening the wrong type material particles, in particular blown film grade LDPE and LDPE blow molding grade mistake. Containing particles have been blown open-class agents, blowing out of the opening film will have a good sex; and blow molding grade material is used to produce hollow container, the particles do not contain any openings agent. If you use the blow to blown film grade LDPE, due to raw material particles in the agent did not speak, this is difficult to speak. Because of a 22 - this, first of all be careful not to supply staff to buy the wrong materials. For the material has already bought the wrong, you can add opening agents, such as oleic acid amide,[link widoczny dla zalogowanych], etc. to improve the opening of the film. If you buy someone else's blown film, it is also possible to use a recycled LDPE particles, recycling is likely to have a variety of materials, of course, the content of the opening in which few agents, the opening of more naturally poor. Flexible high-performance adhesive resin composite packaging materials in food, pharmaceutical packaging and application in other fields already have a 5O-year history. In addition to co-extrusion lamination, the composite extrusion process and dry process is the production of such composite materials, the main method. But there anything duality, these two processes in some obvious deficiencies. For example, in extrusion coating process, LDPE is often bonded with the aluminum foil is not strong; and complex process in the dry and often crack or aluminum foil will occur due to residual solvent fastness end result of too many poor, often not so for food and pharmaceutical packaging. The use of solid AE composite manufacturing process by extruding the composite film has many advantages. Adhesive resin is a vinyl. Methacrylate. Acrylic acid copolymer, can be used in the processing of polyethylene resin designed for general extrusion coating, co-extrusion coating and extrusion equipment for production complex. Were bonded with 2O 8O copies of LDPE resin and stir the mixture can be combined in the extrusion process to improve the bottom with a small amount of aluminum foil or plastic called PET,[link widoczny dla zalogowanych], OPP film bond strength. Poor dissemination of packaged goods packaged with the launch many of our outdated, has been unable to meet national consumption needs of the growing material, either visually, theoretically, they can not arouse consumer desire to buy. Packaging of certain commodities crude old wisdom rather than on the show,[link widoczny dla zalogowanych], but as For example, there is a Native Ezhou, fair, and its products (taste) is very good and its appearance (packaging) is very poor. 7 years ago, the Ministry of Agriculture held agricultural fairs, to poor and unsuccessful because of its packaging. Some shopping (supermarkets) do not want to look packaging for the purchase, but also because of the packaging is not sophisticated consumers, and refused to buy agricultural products. Some packaging rough, inconsistent color patterns, or even typos. For example,[link widoczny dla zalogowanych], the morning of May 27 last year, I went to Ezhou Daily delivery of articles, the son of a friend said he bought two boxes in the market, Wuchang fish, printed handwriting on the box that says Sri Lanka peace Friends in order to understand whether this is true, I made a special trip to a location in the morning in the city of Wuchang Road Ezhou, Kurau mall and other places (supermarkets) pretend shopping, on display at the Wuchang fish food on the shelves were carefully inspected, results show Friends reflect the true situation. Such as reduce foreign exchange earnings of about 1O%, while the domestic market packaging compliance rate of less than 6O%, the national packaging failed due to damage caused at least 150 billion, equivalent to more than 100 retail sales of large commercial enterprises throughout the year, caused by Labor loss is immeasurable. Packaging, but off, heavy losses are obvious. (Sung Che-yuan) for a 23 -

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