The good of 7 great plastic film

Plastic film is the film that makes with polyvinyl chloride, polyethylene, polypropylene, polystyrene and other colophony, use at packing, and use as laminating layer. Will analyse the good of 7 great plastic film below:

Good of plastic film of tall isolation of PVA besmear cloth
Polyvinyl alcohol is tall completely cut off and compound film, be with polyethylene plastic for base material, the liquid of polyvinyl alcohol water-solubility of modified Tu Bu is in what form on base material to have the film of sex of extremely tall isolation. Because of polyvinyl alcohol expensive completely cut off and compound thin coating has crackajack isolation function, and accord with environmental protection request, so, the market prospect of this kinds of data that pack is very bright, there is vast bazaar space in food industry.

Biaxial stretching polypropylene is filmy (BOPP) good
Film of biaxial stretching polypropylene is 20 centuries the data of flexible package of a kind of brightly lit that 60 time development rises. It is to use produce technically raw material of line general polypropylene and functional sex additive mix, melt mixes refine, make sheet, make film through drawing next. BOPP film has the density with PP original colophony not merely low, corrosion resistance the advantage with good, good hear resistance, and filmy and optical function is good, mechanical intensity tall, former data sources is rich and generous.

Low density polyethylene is filmy (LDPE) good
Low density polyethylene is to be below high pressure, ethylene is free base aggregate and acquisition synthetic resin, friend says again " high-pressured polyethylene " . LPDE is given priority to accident is contained on catenary different a chain that pays chain element, in advocate atom of every 1000 carbon on catenary contains 15 ～ about 30 second radical, butyl or longer pay chain. Because more accident is contained to pay chain in molecular catenary, the density of commodity is inferior, consequently soft, be able to bear or endure microtherm sex, impact resistance is better, have excellent chemical stability, normally the circumstance falls acid-proof (except strong oxidisability outside acid) , alkali resistance, salt kind corrode the effect, have excellent report insulation function.
The use scope of film of low density polyethylene is very wide also, pack a category for example. Polyethylene packs velar sort heavy and complicated, its function also has difference each, monolayer film function is single, compound film function is complementary, make the principal material that food packs. Next, polyethylene film still is used in civil engineering category, film of example land labor. It can have waterproof effect in civil engineering, and have extremely low osmotic. What use on agriculture is farming film, can divide the film that it is canopy, ground film, suffering velar, green store film.

Polyester film (PET) good
Polyester film (PET) common says to get together to benzene glycol of 2 formic acid ester, it is a kind of thermoplastic project plastic. Choose squeeze a legal system to become thick piece, the filmy material that makes via biaxial stretching again. The characteristic of polyester film is mechanical function outstanding, rigid, hardness and tenacity are tall, durable thorn, be able to bear or endure attrition, high temperature resistant with microtherm, be able to bear or endure chemical sex, oil resistant sex, air-tightness and protect sweet sex crackajack, it is commonly used block appears a gender one of compound and filmy base material, but be able to bear or endure corona sex has been owed. The quoted price of polyester film is higher, ply is 0.12mm normally, commonly used those who do the food that pack to pack is outer data, the sex that print is better. Because of the complexity of polyester film and difficult differentiate, the superintendency that gives custom brings sure hardship.

Good of nylon plastic film
The chemical name of nylon is polyamide (PA) , the nylon that industrialization produces now is phyletic a lot of, meantime is used produce filmy principal sort has nylon 6, nylon 12, nylon 66 etc. Nylon film is a kind of very tough film, brightly lit sex is good, have crackajack burnish, combat piece of intensity, tensile strength taller, sex of the hear resistance with still be had better, cold-resistant, oil resistant sex and be able to bear or endure organic dissolvent sex, wearability, durable thorn sex is outstanding, and comparative softness, block oxygen sex is outstanding, but poorer to the isolation sex of vapor, suck fully wet, wet sex bigger, heat seals a gender poorer, apply to article of the rigid that pack, for example the fat sex food, fleshy products, fry, vacuum-packed food, evaporate food that boil.

Shed film of Yan Jubing Xi (CPP) good
Stream delaying film is to pass fuse-element shedding to delay suddenly cold one kind when produce makes the same score crowded film directionally without drawing, blame. Its characteristic is to produce speed fast, production value is high, uniformity of sex of filmy brightly lit, glossiness, ply is crackajack, sex of each function balance is exceedingly good. Because be smooth crowded film, if succeeding activity is printed, compound wait very convenience, use extensively at general merchandise of textile, flower, food, daily expense pack.

Plating is aluminous plastic film good
Plating aluminous film has the character of plastic film already, have metallic character again. The effect of aluminium of filmy surface plating is shading, prevent ultraviolet ray to shine, extended the expiration period of content content already, raised filmy brightness again, replaced aluminum foil from sure degree, also have price cheap, beautiful the isolation function with be reached better. Consequently, plating aluminous film is in compound the use in packing is very extensive, principal use change food to pack at the as dry as a chip, Peng such as biscuit, and on the outer packing of a few medicine, cosmetic.




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