软塑材料的制袋与封口是包装流水线上一个关键性的配套工序,由它决定的袋口热封性能,则是任何商品包装性能的重要指标之一。不难设想,倘若热封后,封口部位残存着某种薄弱环节,那么这里就将隐伏着封口界面脱层的危险。情况一旦发生,势必会造成商品污染、食品变质,最终损害商品信誉,给企业带来不可 Bagging and sealing of soft plastic materials is a key supporting process in the packaging line. The sealing performance of the bag mouth determined by it is an important indicator of the performance of any product packaging. Not difficult to imagine, if the heat seal, the sealing part of the remaining remnants of a weak link, then there will be hidden danger of delamination seal interface. Once the situation happens, it will inevitably cause the pollution of the commodities, the deterioration of the foods and the final damage to the reputation of the commodities, which will bring to the enterprise