문제 및 해결책
일반적인 플라스틱 재료 문제에 대한 실질적인 답변
Bubbles inside the product (pinholes)
Insufficient mechanical properties of the product
Product brittle cracking in low-temperature environments
Water vapor marks on the product surface
Water marks in the sheet (bubbles)
Decrease of PET raw material intrinsic viscosity (IV)
Insufficient bottle body burst pressure
Condensation water marks appearing on the bottle body surface
Preform yellowing and discoloration