Zhongshan yijianxing plastic product Co., Ltd.
Tel: 86-0760-86632428 0760-86699946 0760-86699947 Fax: 86-0760-86632429
Email:ykx@petbox.cn
Address:No 11, qianyang Road,Yongmo village, Sanxiang town,Zhongshan city,Guangdong province.China
http://www.petbox.cn
http://yijianxing.com
The production process of PVC glue box made of hard transparent PVC packaging films:
Rigid PVC transparent packaging film with high, hard, smooth, high strength, kink patience good impact resistance and tear resistance, good air tightness, non-toxic, odorless, tasteless, can be fresh and fragrant. PVC plastic box in view of the above characteristics, this film is mainly used for candy kink packaging, cigarette and other food packaging, appearance and traditional (cellulose cellophane cellophane) comparable. So - called PVC glass paper,but the price is lower than the fiber glass paper.
Hard PVC transparent packaging film is a kind of non rigid PVC products add plasticizer, it chooses SG6 such hightype PVC resin, in order to facilitate processing. PVC plastic box packaging for food, but also should choose clean grade PVC, the resin of vinyl chloride monomer residues should be less than 5mgAg.
Hard PVC transparent packaging film production technology process and production technology
(1) production technology process. Rigid PVC packaging film production technological process as follows:
A variety of materials, kneading, cold stirring, extrusion blow molding, PVC glass paper film, antistatic, heat sealing coating disposal - cutting - inspection, packaging and products
The technical process using direct powder extrusion blow molding, made of cellophane membrane, can be directly used as products, without antistatic, heat sealing coating treatment.
(2) production technology. Rigid PVC transparent packaging film is usually chosen blow molding technology extrusion,PVC plastic box the primary technical conditions are as follows:
The mixing kneading. The PVC resin and other additives according to the formula of accurate weighing, in a high speed kneader, kneading time 5~8min, temperature 102 鈩�, kneading good material into the cooler, the materialtemperature of 40-50 鈩� can be put into standby material storage tank.
The blown film extrusion. Application of powder direct blow molding, and similar general film. Extrusion temperature:160~180 鈩� fuselage, machine head neck 180~190 鈩�, 190-210 鈩�, film blowing ratio (2 ~3):1, traction speed 10~30m/mino
The rotational coiling. In order to make the film looks flat, the film thickness not are evenly spread, the choice of thefilm cut open after rotating reel.
