Manufacturing method of composite package

A composite packaging bag and a manufacturing method technology, applied in the field of packaging bag manufacturing, can solve the problems of high energy loss, high coating temperature, insufficient surface flatness of the packaging bag, etc. Effect

Inactive Publication Date: 2011-01-26
东莞市长盈塑料编织包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the coating temperature of the current coating process for packaging bags is relatively high, generally around 260 degrees Celsius, which consumes a lot of energy, and the surface of the packaging bag after coating is not even enough, which affects the resistance of the packaging bag

Method used

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  • Manufacturing method of composite package
  • Manufacturing method of composite package
  • Manufacturing method of composite package

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Embodiment Construction

[0016] In order to describe the technical content, structural features, and achieved effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0017] refer to figure 1 The present invention provides a method for manufacturing a composite packaging bag, which includes step 101 and step 102 in sequence. Step 101: Provide a surface layer and a woven bag. Step 102: Compositely connecting the surface layer to the woven bag through a coating process within a temperature range of 230 degrees Celsius to 240 degrees Celsius, and the coating process forms a coating layer.

[0018] Preferably, the coating material includes modified polypropylene and special polyethylene for coating, and the polypropylene contains molecular regulators and other safety aids, which increases the melt index of the coating material and improves its flow It helps to achieve lamination at a lower temperature, and make...

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Abstract

The invention discloses a manufacturing method of composite packages, which comprises the following steps of providing a surface layer and a woven bag; compounding and connecting the surface layer to the woven bag through a filming procedure in the range of 230 DEG C to 240 DEG C, wherein filming materials used in the filming procedure comprises modified polypropylene and special polyethylene for filming, and the polypropylene contains a molecular weight regulator and other assistants; thus, the melt index of the filming materials is improved so as to improve the fluidity, promote to film at lower temperature, flatten the surfaces of the packages and improve the anti-break capability of the packages.

Description

technical field [0001] The invention relates to the field of packaging bag manufacturing, in particular to a method for manufacturing a composite packaging bag. Background technique [0002] The current packaging bag has a relatively smooth surface layer and a woven bag. Various patterns are printed on the surface layer. The surface layer and the woven bag are combined to form a packaging bag. At present, the surface layer and the woven bag are generally pressed together by hot pressing. . However, due to the wide range of applications of packaging bags, different industries have different requirements for packaging bags, and they are gradually increasing, such as food packaging bags, fertilizer packaging bags, etc. In addition to requiring strong packaging bags, the safety of packaging bags is as follows: Non-toxic, flame retardant, etc., as well as temperature resistance and wear resistance have attracted more attention. At this time, the coating process came into being....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31B1/74
Inventor 李小钢
Owner 东莞市长盈塑料编织包装有限公司
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