The production of  self-sealing bag is divided into two kinds, one is directly blown film  molding, self-sealing above the general is 1.8CM, self-sealing near the  mouth is relatively thick, zombie bag on both sides of the use of eager  sealing method bag into the finished product; The method of the chain, the latter method is mainly used for the production of composite bags.

Self-adhesive  self-styled bag production is mainly used single-film cross-cutting,  both sides of the heat seal, bag positive and negative length, while the  other side of the side 3-5cm can be folded back part of the fold back  part of the stickers, Sex gum and other colloids, when used to tear the colloid on the plastic mask can be folded back to seal the bag.

The  following is a common pattern and size of the self-styled bag, the  thickness is generally single-sided 0.03mm, also known as 3 wire, 3s,  also have 0.03mm ~ 0.2mm, according to different needs to produce  different thickness.