2021-10-30 14:26:20
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Blisting-sheet material is a kind of plastic processing material, the main principle is to flatten the plastic sheet material after heating and softening, using vacuum adsorption on the surface of the mold, cooling after forming, widely used in plastic packaging, lighting, advertising, decoration and other industries. Commonly used sheets include: PVC, PET, PP, PS and flocking sheets, gold-plated sheets and anti-static sheets on this basis.
PVC: the most commonly used blister material, soft, strong toughness, good plasticity, can be made transparent and a variety of colors, commonly used transparent PVC packaging electronics, cosmetics, toys and gifts and other products. PET (A-PET) : hard, good toughness, high strength, bright surface, environmental protection and non-toxic, transparent and A variety of colors of the sheet.
The disadvantage is that PET high cycle heat bonding is more difficult, the price is much more expensive than PVC, this material is often required to replace PVC products high-grade and environmental protection users; PS: small density (light weight), environmental protection non-toxic, plasticity is very good, poor toughness and brittle, can not be made into transparent materials, so can only be made into the bottom type of blister, because of its easy to crack, this kind of blister should not be recycled.
PP: special soft material, good toughness, environmental protection, non-toxic, high temperature resistance, often made of food appliances or other high temperature products packaging; But its plasticity is poor, the processing is difficult, the surface gloss is poor, and the color will become shallow when processing; Pet-g: the physical properties of the same as A-PET, but can be high cycle heat, its price is 80% more expensive than A-PET.