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Composite packaging bag for beverages and production method of composite packaging bag

A composite packaging bag and production method technology, applied in chemical instruments and methods, layered products, lamination devices, etc., can solve the problems of poor product flexibility, poor fresh-keeping performance, large expansion space, etc., and achieve good air tightness, Low cost and energy saving effect

Inactive Publication Date: 2013-12-11
SHANDONG JUQIANG BIOLOGICAL FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The products produced by this method are simple, fast and practical, but the disadvantages are: high oxygen permeability, short shelf life, poor product flexibility, poor fresh-keeping performance, and large expansion space
High permeability to CO2 and organic odor, but poor permeability to water vapor and air

Method used

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  • Composite packaging bag for beverages and production method of composite packaging bag
  • Composite packaging bag for beverages and production method of composite packaging bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: The present invention is used for the preparation of the composite packaging bag of beverage food

[0024] Take 54.2kg of low-density polyethylene, 43.8kg of biaxially oriented polyamide, and 2kg of polyvinylidene chloride.

[0025] The production method is as follows:

[0026] (1) Use low-density polyethylene as the raw material, put it into the reactor, and carry out the polymerization reaction under the action of the initiator under high-pressure compression. The material coming out of the reactor is removed by the separator to form a film after the unreacted low-density polyethylene ;

[0027] (2) Dry the biaxially stretched polyamide through raw materials→melt extrusion→cooling cast sheet→thickness measurement of cast sheet→simultaneous biaxial stretching→heat setting;

[0028] (3) Coat polyvinylidene chloride to 2.0 microns with a concave roller, and heat, dry and solidify. The drying tunnel is divided into three sections. The temperatures of the t...

Embodiment 2

[0031] Embodiment 2: the present invention is used for the preparation of the composite packaging bag of beverage food

[0032] Take 57kg of low-density polyethylene, 40.5kg of biaxially oriented polyamide, and 2.5kg of polyvinylidene chloride.

[0033] The production method is as follows:

[0034] (1) Use low-density polyethylene as the raw material, put it into the reactor, and carry out the polymerization reaction under the action of the initiator under high-pressure compression. The material coming out of the reactor is removed by the separator to form a film after the unreacted low-density polyethylene ;

[0035] (2) Dry the biaxially stretched polyamide through raw materials→melt extrusion→cooling cast sheet→thickness measurement of cast sheet→simultaneous biaxial stretching→heat setting;

[0036] (3) Coat the polyvinylidene chloride to 2.5 microns with a concave roller, and heat it to dry and solidify. The drying tunnel is divided into three sections, and the temperat...

Embodiment 3

[0039] The mensuration of embodiment 3 index parameters

[0040] 1. Enterprise standards for technical parameters of composite packaging bags for beverages and foods are shown in Table 1:

[0041]

[0042] 2. The technical parameters of the composite packaging bag for beverages and foods prepared in Examples 1 and 2 are shown in Table 2:

[0043]

[0044] As can be seen from the comparison of Table 2 and Table 1, the technical parameters of the composite packaging bag for beverages and foods of the present invention are better than the standard parameters of the enterprise, especially that of Example 1 is better than the standard parameters.

[0045] For the production of this composite packaging bag, first of all, it is necessary to design the packaging style for industrial mass production, and according to the packaging style, make various shapes of packaging bags through pre-filming, printing, compounding, curing, cutting, molding and other processes, ...

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Abstract

The invention discloses a composite packaging bag for beverages and relates to the technical field of beverage packaging bags. Films made of three raw materials, namely low density polyethylene, two-way stretch polyamide and polyvinylidene chloride are subjected to low / high-pressure rolling no-glue compositing, then are cured, cooled and sliced, and are subjected to thermal inductance pressing and cutting to form a bag. A production method has the energy-saving effect and is low in pollution. The produced composite packaging bag is high in tensile strength, low in oxygen permeation rate, resistant to oil, high temperature and low temperature, high in air impermeability, low in specific gravity, low in cost, quick and novel in packaging, and has the environment-friendly effect.

Description

technical field [0001] The invention relates to the technical field of beverage and food packaging bags, in particular to a composite packaging bag. Background technique [0002] At present, as the voice of the country to protect the environment, care for the earth, and save resources is getting higher and higher, the market's requirements for food packaging are becoming more and more stringent. Harmless, non-polluting and recyclable environmentally friendly packaging is accepted and respected by the society. The preparation method of existing polyethylene plastic bag is to take polyethylene as main raw material, and materials such as polyethylene are blown into packaging bag. The products produced by this method are simple, quick and practical, but the disadvantages are: high oxygen permeability, short shelf life, poor product flexibility, poor fresh-keeping performance, and large expansion space. In addition to the limitations of various uses of traditional packaging mat...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/30B32B27/34B32B37/06B32B37/10
Inventor 陈利山
Owner SHANDONG JUQIANG BIOLOGICAL FOOD
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