Sample Bottles

Plastic Bottle Manufacturer, Custom Pet Bottles, Pet Bottles suppliers.
Made by: https://www.plastic-bottle-manufacturers.com 

PET bottles injection blow molding process parameter values
When the injection blow molding of PET bottles to control the melt temperature, it is in the range of 275 ℃ ~ 285 ℃, injection blow molding stage polymer than most of the high temperature of about 50 ℃. Hot runner system to adopt a streamlined, symmetrical design, to avoid dead ends. Nozzle with locking structure, the outer surface to be heated. To ensure that the parison has a high transparency, after filling the melt into a parison mold to be rapidly cooled to below 145 ℃, but than its glass transition temperature (82 ℃) higher and closer to the glass transition temperature, blow bottle higher transparency, can broaden the range of processing. Parison mold cooling water temperature should be as low as 10 ℃ ~ 35 ℃, rapid cooling of the parison. Also the use of a liquid or gas continuous cooling mandrel. Wherein the air cooling mandrel can have a more uniform axial temperature profile, and also will not leak. Cold air pressure within the mandrel typically 1MPa. Preferably liquid, gas cooling combination, PET parison inflation pressure is about 1.2MPa. Use of the cooling water temperature 5 ℃ ~ 10 ℃. Cooling blow molds, but also the parison rapidly cooling inflation.

PET bottle flakes processing

Improved rapid growth of PET bottle consumption, collection systems and change Europe in the regulations, for the rapid development of PET recycling industry offers new opportunities and new challenges.
There are many products made from recycled materials replace the pure material, creating economic and process technical sense, they are commonly used fibers, thermoformed sheet, non-woven fibers, packing tape, and even master batch and bottles.
Each of these processes are expected to be recovered PET performance requests, close to the requirements of the pure material presented. In addition to molecular weight (often referred to as intrinsic viscosity) away, melt foreign particles or contaminants (such as paper, sand, glue, PP and PVC and other plastics) will have an impact on product quality.
Highest quality requirements appear in so-called "bottle - bottle" recycling process. In this case, only when the source is determined by the use of bottles and under control, such as the backlog of recycled bottles, the process is practical and economically feasible.