1. Pulling wire: When it is formed by plastic molding, due to the height and angle of the mold, the structure of the upper frame, etc., a phenomenon of line protrusions appears on the corners of the blister product, which seriously affects the appearance and is usually used as a defective product. deal with.
2, color: the difference in color usually appears in the ingredients of the sheet producer, there may be different background color differences on different batches of sheets, but this situation will not have a big impact, monomeric It can't be distinguished when packaging, so this phenomenon focuses on communication with the sheet supplier.
3. Perforation: In the process of plastic forming, due to the uneven thickness of the material and the temperature control is not correct, there will be perforation. The perforated plastic products are generally regarded as bad products, and they are not used for genuine goods.
4. Scratches: Scratches and scratches on the surface of plastic products are the most likely to occur. In the production process and packaging procedures, if improperly handled, the surface of the plastic products will be scratched and traced. Seriously become a bad product.
5, deformation: the main reason for the deformation of plastic products is the appearance of temperature adjustment, material bubbles, impurities, etc., will lead to plastic deformation, suction is not in place, can not meet the requirements of plastic molding, so that packaging items can not be placed Into, become a defective product.
6. Water ripple: It mainly appears in the production process of sheet. The surface water ripple of PVC sheet is the most common, and the general situation can be accepted. The large-grain wave will dispose of the high-demand packaging and become bad. The product can therefore only be improved by the sheet manufacturer.
7. Bubbles: Generally appear in the production process of materials, air bubbles in the plastic, caused by the phenomenon of bubbles, in this case, too large bubbles will affect the appearance, so these will become defective.
8. Crystal point: Due to the inadvertent entry of impurities in the raw materials and dust in the air into the sheet production during the production process of the blister sheet, the produced sheet will become defective and become a defective product.
