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The production of zippered ziplock bags is divided into two types, one is direct blown film forming, the above is generally 1.8CM from the self-sealing mouth, the thickness is relatively thick near the self-sealing mouth, and the left and right sides of the zipper bag are made by hot-sealing to make the finished product; the other is the latter. A method of attaching a chain, the latter method is mainly used for the production of a composite bag.
The production of self-adhesive ziplock bag is mainly made by cross-cutting of single film, heat sealing on both sides, the length of the bag is different, the side is 3-5cm longer than the other side, and the part can be folded back. Glue such as glue can be used to seal the bag when the plastic cover on the gel is peeled back.
The following are common specifications and sizes of zipper ziplock bags. The thickness is generally 0.03mm on one side, also known as 3 filaments, 3s, 0.03mm~0.2mm, etc. Different thicknesses can be produced according to different needs.
