Difference between pet bottles and PVC bottles

PET (Poly Terephthalic acid ethylene glycol ester) blow business of bottle, like day of bottle and beverage bottle, due to plastic characteristics not as, PET plastic particles heated Hou in different temperature Xia (below melting point), characteristics changes is big, like high had 150 degrees around, PET particles will Crystal variable hard, this is also is PET bottle, mineral water bottle not resistance hot, and farmer Orchard can heat of reasons. Due to its characteristics is larger, so blowing bottle process will be very long, and particles to the bottle of the one-step control (such as different particles, production bottle), capacity is not too high. PET plastic bottles typically begins with after injection of particles into a preform, heated and try blowing again. Miss Liu 158-168-96316
PVC film (PVC) grey yellowish translucent, shiny. Transparency is better than polyethylene, polystyrene Ene, worse than polystyrene, with different chemicals, divided into hard and soft PVC, soft products soft and ductile, feels sticky, hard products hardness higher than low density polyethylene, and less than polypropylene, albinism occurs at the inflection. PVC particles when heated (below the melting point) with the temperature changes little, and its form is suitable for extrusion, is a rotor can be directly in the mold after molding.
In General, the two bottles will have seams, at least the bottle is there, it was mold clamping left, the good die will have a thin line.
1, mineral water filling bottles at room temperature when you blow, mold requires cooling, keeping the temperature below 50 degrees, while hot-fill bottle blow mold is required when heated above 130 degrees;
2, the price difference is the difference in raw material prices, and blow molding equipment and technology, of course there are some relations; 3, the line mainly affects the appearance, and should have little impact on performance. Pigment masterbatches morning Shenzhen, Ltd provides information.

PET (polyethylene terephthalate), commonly known as polyester, polyester is a very important product. PET is used to make bottles containers, bottle containers made of high strength, good transparency, nontoxic, penetration-proof, light weight, high efficiency, low cost, wide application. PET bottles in the country only a few 20ji years of development, a bottom up PET bottle production started in 1985 in 1989, when a small number of non-care PET bottles, until 1995 before we started mass production of bottomless support PET bottles. Today, PET bottles carbonated beverage containers originally developed to the beer bottles, edible oil, condiment bottles, medicine bottles, cosmetic bottles, but also in the food, beverage, pharmaceutical and other packaging plays an increasingly important role. At present, the packaging industry has become the second-largest user of PET, second only to the synthetic fibres industry.