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What are the advantages of easy-tear zippers?
The tear strip end of the easy-tear zipper should be reinforced with heat sealing to better fix it to the bag body. This can maintain the freshness of the items in the bag and extend the shelf life of the contents. Its strength, stiffness, hardness and heat resistance are superior.
Source:
The tear-off end of the easy-tear zipper needs to be reinforced with heat sealing to better fix it to the bag body, which can keep the items in the bag fresh and prolong the shelf life of the contents. Its strength, stiffness, hardness and heat resistance are superior to low-pressure polyethylene, and it can be used at around 100 degrees. There are many materials for zippers, and their properties are also different. Common materials for zippers include PP/EVA/PE, such as shopping bags, packaging bags, flat cloth bags, hook bags, dustproof hanging bags, etc., which are generally made of PE.
What is an easy-tear zipper?
When the user tears off the easy-tear strip of the easy-tear zipper, the easy-tear piece will remain on the top surface of the main piece, so it will not be thrown on the ground. The upper and lower sides of the male piece are provided with anti-slip ridges. The tear strip consists of two pieces, one of which is connected to the other. A pair of interlocking male strips and female grooves are provided at the lower part of the opposite surfaces of the two pieces. A tear strip is provided at the upper end of the piece. A tear strip is provided at the upper end of the piece. An easy-tear strip is detachably connected to the top surface of the main piece. The side wall of the easy-tear strip facing the easy-tear piece abuts against the easy-tear piece, while the upper end of the tear strip overlaps the upper end of the other piece. There is also a strip-shaped protrusion below the tear strip, which is symmetrical to the protrusion of the piece. A protective strip is fixedly set at the top of the side wall facing the secondary film, and the top surface of the protective strip abuts against the bottom surface of the tear film. The male film is strip-shaped on the male film, the female film is fan-shaped on the male film, the male film is strip-shaped on the film, and the other film is long strip-shaped on the other film. The zipper can be quickly opened by tearing the tear film. A kind of easy-tear zipper including a main film and a secondary film.
The structure of the easy-tear zipper
A circular arc-shaped engaging portion is fixedly set on the two relatively set side walls of the female groove opening, and the concave portion is set toward the side wall of the female groove connected therewith. It penetrates the easy-tear piece in the direction perpendicular to the main piece. The easy-tear pieces are uniformly distributed along the length direction of the easy-tear piece. The thickness of the easy-tear piece is half of the main piece, and the position of the easy-tear piece is on the side wall of the main piece facing away from the secondary piece. Therefore, there will be a gap between the easy-tear piece and the secondary piece. The protective strip can protect the male strip and the female groove, reducing the possibility of foreign objects entering between the male strip and the female groove causing pollution, and a female groove cooperating therewith is provided between the main piece and the main piece, and the male strip and the female groove are interlocked.
Advantages of easy-tear zippers
At present, the widely used opening and closing strips on the market are composed of two separate parts: a male claw and a female groove. It solves a series of problems such as pollution of the zipper male claw and female groove, and solves the problem of separation of the zipper male claw and female groove. Ordinary acids, alkalis and organic solvents have almost no effect on the opening and closing strips, so they can be used for food packaging. Moreover, when food is put into food packaging bags, there is no need to open the zipper, which is very practical.
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