August 21, 2024, as the requirements of various industries for packaging materials and related products continue to increase, the transparency of PET sheets has received increasing attention. In recent years, the R&D, sales, and production departments of Xingjinya Industrial Co., Ltd. have worked together to actively explore effective methods to improve the transparency of PET sheets.

As an important material widely used in food packaging, electronic appliances, decoration and other fields, the transparency of PET sheets directly affects the appearance and quality of products. In order to meet market demand and improve product competitiveness, Xingjinya Industrial Co., Ltd. has invested a lot of resources in technology research and development.

In terms of raw material selection, high-purity PET resins are continuously selected and the impurity content is strictly controlled. High-purity resins can effectively reduce light scattering, thereby significantly improving the transparency of sheets. At the same time, the reasonable addition of antioxidants, nucleating agents and other additives also plays an important role in improving transparency. These additives can not only delay the oxidation of PET during processing, but also promote finer and more uniform crystallization, further reducing light scattering.

Production process control has become a key link in improving the transparency of PET sheets. Xingjinya Industrial Co., Ltd. optimizes the extrusion process, accurately controls the extrusion temperature and speed, and selects the appropriate extruder to ensure that the PET resin is melted and extruded in the best state. Strengthen cooling control, adopt advanced cooling methods and reasonable cooling speeds, quickly reduce the temperature of the sheet, reduce crystallinity, and lay the foundation for high transparency. In addition, improve the level of stretching technology, adjust the stretching temperature, multiples and speed, so that the molecular chain of the sheet is more oriented, which greatly improves the transparency.

Equipment maintenance and cleaning should not be ignored. Regularly maintain and maintain the production equipment, and replace worn parts in time to ensure stable equipment performance. At the same time, keep the equipment clean, remove residual resin and impurities, and reduce the impact on the quality of the sheet. The cleanliness of the production environment has also been highly valued, effectively reducing the pollution of dust, impurities, etc. to the sheet.

In order to ensure quality, Xingjinya has established a strict quality inspection system. Use advanced equipment such as transmittance testers and haze meters to test the transparency of each batch of PET sheets. Once problems are found, take immediate measures to improve them. During the production process, strengthen process control, monitor the quality of the sheet in real time through online detection equipment, and achieve timely discovery and timely treatment.

As we all know, improving the transparency of PET sheets is a systematic project that requires the joint efforts of all departments of related enterprises. With the continuous advancement and innovation of technology, we believe that the transparency of Xingjinya’s PET sheets will be further improved in the future, providing customers with better quality packaging materials.