#PET PREFORM HOW TO#

Reasons and solutions for common quality defectsĪ. (Optimization of the cycle to ensure that the average temperature of the mold is appropriate)ħ.

Mold position setting that allows the robot to enter Injection speed and maximum pressure limit

#PET PREFORM HOW TO#

How to proceed to optimize the production cycleĪdjustment of the distance between the take-up plate and the ejector plate (essentially caused by oxidative degradation of PET) AA (Acetaldehyde) increase in acetaldehyde The ideal moisture content after drying is approximately: 10to40 ppm (/- 10 ppm), ie 0.001-0.004% The most complete PET preform quality defect solution in history The moisture content of the raw material granules usually ranges from 0.1 to 0.3% (1000 to 3000 ppm). Third, the water absorption characteristics of PET Prepare for high temperature preparation for PET into the injection molding machine for shear plasticization. (essentially caused by hydrolytical degradation of PET)ī. It has an influence on the pressure resistance of the beverage bottle and is easily broken. – IV (Intrinsic Viscosity) viscosity drop. The odor of the beverage bottle causes the beverage to taste (but has little effect on the human body) – AA (Acetaldehyde) an increase in acetaldehyde. High levels of water are exacerbated in production: Second, why should the PET material be dried before the production of the preform?īecause PET has a certain water absorption, it absorbs a lot of water during transportation, storage and use. * The most complete PET preform quality defect solution in history * Excellent strength properties, and can be further improved by biaxial stretching. * No toxic gases will occur when burning. * Good hygiene, PDA – recognized by the largest chemical laboratory in the United States. * Excellent chemical resistance, with acid as the head is almost resistant to all organic drugs. * Excellent fragrance retention and good air tightness. * Excellent transparency of over 90%, excellent surface gloss and a glassy appearance. Is the abbreviation of English PolyethyleneTerephthalate PET （Polyethylene terephthalate） is one kind of polyester

Pet preform