Matte effect self-supporting zip pocket
A zipper bag, matte technology, used in the field of packaging bags and soft plastic packaging bags, can solve the problems of sticking knives, the difference is not too large, and the application is not too wide, to achieve high heat resistance, avoid sticking knives and bags. curling effect
Inactive Publication Date: 2016-01-06
JIANGSU SUNKEY PACKAGING
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0002] Among all kinds of flexible plastic packaging materials, there is a kind of matte film, which mainly includes matte biaxially oriented polypropylene film and matte biaxially oriented polyester film. not widely used
At present, the largest amount of film on the market is the matte biaxially oriented polypropylene film, and when the matte biaxially oriented polypropylene film is directly compounded with polyethylene film or cast polypropylene film to make a zipper bag, due to the matte biaxially stretched The melting point of polypropylene film is not too different from that of polyethylene film or cast polypropylene film. It is easy to stick to the knife when heat sealing, and the flatness of the bag is also poor.
Method used
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[0010] The present invention will be further described below in conjunction with specific drawings.
[0011] Such as Figure 1 ~ Figure 2 As shown: the self-supporting zipper bag with matte effect includes a matte oil layer 1, a biaxially stretched polyester film layer 2, a polyurethane ink layer 3, a polyurethane adhesive layer 4, a polyethylene film layer 5, a bag body 6, and a self-supporting bottom 7. Polyethylene zipper 8, edge banding 9, etc.
[0012] Such as figure 1 As shown, the present invention comprises bag body 6, and the side seam of bag body 6 both sides is connected to form sealing edge 9, and the bottom of bag body 6 is provided with self-supporting bottom 7, and the upper opening of bag body 6 is provided with polyethylene zipper 8; figure 2 As shown, the bag body 6 includes a biaxially stretched polyester film layer 2, a matte oil layer 1 is printed on the outside of the biaxially stretched polyester film layer 2, and a polyurethane glue is passed on the ...
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Abstract
The invention relates to a self-erected zippered bag with a matt effect. The self-erected zippered bag comprises a bag body. Side seams on the two sides of the bag body are connected to form sealed edges, a self-erected bottom is arranged at the bottom of the bag body, and a polyethylene zipper is arranged at an opening in the upper portion of the bag body. The self-erected zippered bag is characterized in that the bag body comprises a two-way stretch polyester film layer, a matt oil layer is printed on the outer side of the two-way stretch polyester film layer, a polyethylene film layer is connected to the inner side of the two-way stretch polyester film layer through a polyurethane adhesive layer, and a polyurethane ink layer is printed on the surface of one side where the two-way stretch polyester film layer is connected with the polyurethane adhesive layer. According to the self-erected zippered bag, after the matt oil layer is printed on the surface of the two-way stretch polyester film, the film has the matt effect, and the surface of the film has high heat resistance; in this way, the phenomena of knife adhesion and bag body curliness at zipper point sealing portions under too high heat sealing temperatures in the zipper manufacturing process can be avoided.
Description
technical field [0001] The invention relates to a packaging bag, in particular to a self-supporting zipper bag with a matte effect, and belongs to the technical field of soft plastic packaging bags. Background technique [0002] Among all kinds of flexible plastic packaging materials, there is a kind of matte film, which mainly includes matte biaxially oriented polypropylene film and matte biaxially oriented polyester film. Not widely used. At present, the largest amount of film on the market is the matte biaxially oriented polypropylene film, and when the matte biaxially oriented polypropylene film is directly compounded with polyethylene film or cast polypropylene film to make a zipper bag, due to the matte biaxially stretched The melting point of polypropylene film is not too different from that of polyethylene film or cast polypropylene film. It is easy to stick to the knife when heat sealing, and the flatness of the bag is also poor. Contents of the invention [000...
Claims
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IPC IPC(8): B65D30/02B65D33/00B32B27/36B32B27/32
Inventor 程一龙陈小峰李飞
Owner JIANGSU SUNKEY PACKAGING