Four kinds bag making methods PE stretch film

Materials saving, labor and time saving when using. It is widely used in papermaking, logistics, chemical industry, plastic raw materials, building materials, foodstuff and glass etc fields.

According to the bag making method, the PE stretch film plastic bag is classfied into three sides sealing, middle & bottom selaing, Stereogram middle selaing and sheet film etc 4 kinds.  

1.three sides selaing bag is sealed on the edges of bags, the front and back are both finished size, it has a certain sense of the whole, the design is unrestrained, and the design has a certain consistency. Because the size of the back and the back are the same, the front design can be designed for the front and back. When making the plate, the back should be arranged on the same set of roller.

2. Bottom sealing bag is sealed at the back, front size for finished product size, the back into two equal parts, and its width is equal to the sum of the width of the front, is on the back, when the design is usually will unfold, carries on the integration of design, and add 1 cm around each sealing side, is, back at the same registering the roller

3. Stereogram middle selaing bag, the seal is on the bottom of the bottom seal, on both sides with a solid side, back and side three sides are also on the same set of roller

 
4. PE stretch film material due to the restrictions of the printed material, the positive and negative must be separated from the design, separate plate, can not appear on the same set of plate cylinder