Paper-plastic adhesive tape, plastic composite woven bag and preparation method

A technology for woven bags and adhesive materials, which is applied in chemical instruments and methods, synthetic resin layered products, paper/cardboard layered products, etc., can solve the problems that industrial production cannot be realized, the durability of composite bags is not long, and the cost is high. , to reduce production costs, improve barriers, and save human resources.

Inactive Publication Date: 2019-01-22
常州斯开龙包装机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention overcomes the defects in the prior art that plastic composite woven bags are artificially bagged in order to realize the sealing effect of the inner packaging, the cost is high, industrial production cannot be realized, and the durability of the existing composite bags is not long, and it provides a Paper-plastic adhesive tape, plastic composite woven bag and preparation method

Method used

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  • Paper-plastic adhesive tape, plastic composite woven bag and preparation method
  • Paper-plastic adhesive tape, plastic composite woven bag and preparation method
  • Paper-plastic adhesive tape, plastic composite woven bag and preparation method

Examples

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Effect test

Embodiment 1

[0082] 1. Schematic diagram of the structure of the plastic composite woven bag and the paper-plastic adhesive tape of the present invention:

[0083] figure 1 It is the structural representation of the plastic composite woven bag of embodiment 1, image 3 It is a structural schematic view of another state of the plastic composite woven bag of Example 1. Please combine figure 1 , image 3 It should be understood that the composite woven bag 1 is a four-layer composite structure, and the composite woven bag 1 includes a woven bag body 2 , an adhesive material layer 3 , a high barrier material layer 4 and a film layer 5 . Wherein, the woven bag body 2 is used to hold articles; the adhesive material layer 3 is coated on the outer surface of the woven bag body 2; the high barrier material layer 4 is coated on the adhesive material layer 3 On the outer surface, the high barrier material layer 4 is used to prevent external moisture and oxygen from entering the woven bag body 2...

Embodiment 2

[0107] The structure of this embodiment is basically the same as that of Embodiment 1, except that the paper-plastic adhesive tape 7 is bonded to the seam in a V shape. figure 2 It is the structural representation of the plastic composite woven bag of embodiment 2.

[0108] In this embodiment, the paper-plastic adhesive tape 7 is a V-shaped adhesive tape, and the V-shaped adhesive tape is wrapped in the film layer 5 at the position where the seam cover line 6 is arranged. Compared with Example 1, the use of the V-shaped adhesive tape only requires adhesive connection at the corresponding two ends of the V-shaped adhesive tape, the operation is simpler, and the barrier and sealing properties are better.

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Abstract

The invention discloses a paper-plastic bonding adhesive tape, a plastic compound woven bag and a preparation method. The preparation method of the paper-plastic bonding adhesive tape comprises the following steps: (1) coating the single face of a thin film with a high-barrier material, so as to form a high-barrier material layer; (2) compounding the high-barrier material layer and kraft paper through a bonding material layer; and (3) coating the kraft paper with a hot melt adhesive to form a hot melt adhesive layer. The paper-plastic bonding adhesive tape provided by the invention has a good sealing effect and has waterproof, moisture-proof, mildew-proof, damp-proof, insect-proof, fresh-keeping and sealing effects; the high-barrier material is additionally arranged on a structure of the plastic compound woven bag and the paper-plastic bonding adhesive tape is additionally arranged on a curled edge sealing sewing thread and is used for hotly bonding and sealing, so that the barrier and sealing performances are improved, and a first-layer woven bag and internal packing materials are free of influences of infrared rays, ultraviolet rays and external air, so that a completely sealed state is realized; manual bagging is not needed, so that human resources are saved and the production cost is reduced; and industrial production is easy to realize.

Description

technical field [0001] The invention relates to a paper-plastic adhesive tape, a plastic composite woven bag and a preparation method. Background technique [0002] The adhesive tape in the prior art has only two-layer structure, kraft paper layer and hot-melt adhesive layer, and the composite woven bag is bonded with high-temperature hot pressing, and is used for sealing the bottom and the top. The mouth of the composite woven bag is sealed with cotton thread, and then glued on the cotton thread with paper hot-melt adhesive tape. The purpose is to play the role of waterproof, moisture-proof, mold-proof, and make rice Coarse grains, beans, grains, milk powder, food, and chemical materials are kept fresh and stored for a long time. However, when the seam cover line of the composite woven bag is affected by the gravity of the product in the bag, when the pinhole of the seam cover line expands and leaks air, due to the moisture and humidity in the air, the hot melt adhesive la...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/10B32B7/12B32B29/06B32B37/12B32B37/10
CPCB32B7/12B32B27/08B32B27/10B32B29/06B32B37/10B32B37/12B32B2037/1215B32B2255/10B32B2255/26
Inventor 吴建国
Owner 常州斯开龙包装机械有限公司
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