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Thermal shrinking colored drink package color film and production method thereof

A production method and heat-shrinking technology, applied in the field of packaging, can solve the problems of difficulty in meeting high-quality beverage packaging requirements, high cost of using cartons, and easy breakage, and achieve convenient and fast transportation and turnover, good heat-sealability, and tear resistance. Strong cracking effect

Inactive Publication Date: 2009-12-30
无锡市方成彩印包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Three-layer co-extruded heat-shrinkable beverage packaging film is an indispensable packaging material in the daily life of modern society. In the prior art, cartons are generally used for beverage packaging. The cost of using cartons is relatively high, and they are prone to damage during transportation. , especially in severe weather such as wind, rain and hail, it is difficult to transport
Due to the different processing technology of raw materials, the existing shrink films on the market have low strength, low transparency, poor heat sealing performance, and no sense of color, so it is difficult to meet the requirements of high-quality beverage packaging.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: The production method of a kind of heat-shrinkable colored beverage packaging color film of the present invention adopts the following process steps: its component ratio is calculated in parts by weight:

[0013] Take 38 parts of LDPE high-density polyethylene (1810D), 5 parts of HDPE5000S, and 5 parts of LLDPE linear low-density polyethylene, put them into the closed plastic refining machine in the above order, masticate at 110°C for 10 minutes, and then plasticize The hot material is fed into the forced feeding extruder, the temperature of the extruder is kept at 130°C, the center feeding screw die has 3 die heads, the first die head temperature is 110°C, and the second die head temperature is 130°C , the temperature of the third die is 150°C, the diameter of the extruder screw is 150mm, the ratio of length to diameter is 1:28, and there is a mixing head. Extrusion pressure: 20-70MPa, extrusion die diameter 1.2M, using up-blowing method, the inflated fil...

Embodiment 2

[0014] Embodiment 2: A kind of production method of heat-shrinkable colored beverage packaging color film of the present invention adopts the following process steps: its component ratio is calculated in parts by weight:

[0015] Take 48 parts of LDPE high-density polyethylene (1810D), 10 parts of HDPE5000S, and 10 parts of LLDPE linear low-density polyethylene, put them into the closed plastic refining machine in the above order, and masticate at 125 ° C for 12 minutes, and then plasticize The melted hot material is added into the forced-feed extruder, and the temperature of the extruder is kept at 150°C. The temperature of the head is 120°C, the temperature of the second die is 140°C, the temperature of the third die is 160°C, the diameter of the extruder screw is 150mm, the ratio of length to diameter is 1:28, and there is a mixing head. Extrusion pressure: 20-70MPa, extrusion die diameter 1.2M, using up-blowing method, the inflated film tube is cooled by double air duct ai...

Embodiment 3

[0016] Embodiment 3: A kind of production method of heat-shrinkable colored beverage packaging color film of the present invention adopts the following process steps: the proportion of its components is calculated in parts by weight:

[0017] Take 58 parts of LDPE high-density polyethylene (1810D), 15 parts of HDPE5000S, and 15 parts of LLDPE linear low-density polyethylene, put them into the closed plastic refining machine in the above order, masticate at 140 ° C for 15 minutes, and then plasticize The hot material is added into the forced-feeding extruder, the temperature of the extruder is kept at 170°C, the center feeding screw die has 3 die heads, the screw diameter of the extruder is 150mm, and the length-to-diameter ratio is 1:28. Refining head. Extrusion pressure: 20-70MPa, extrusion die diameter 1.2M, temperature of the first die head 120°C, temperature of the second die head 160°C, temperature of the third die head 180°C. The film tube is cooled by the double-air du...

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Abstract

The invention relates to a thermal shrinking colored drink package color film and a production method thereof. The production method is characterized by comprising the following technical steps: taking and sequentially adding LDPE high-density polyethylene, HDPE5000S, LLDPE linear low-density polyethylene into a closed plastic refining machine; and performing extrusion, blowup to form and cooling; and putting the cooled substance into a printer to be colorfully printed into a colored film. The thermal shrinking colored drink package color film has simple manufacturing process and low using cost, and can be recycled; in addition, the thermal shrinking colored drink package color film has the advantages of attractive appearance, gorgeous color, environmental protection, no toxity, capability of directing contacting with foods, strong impact force resistance and tear resistance, uniform thickness, good thermal sealing property, extremely high shrinking percentage, reduction of package cost, more convenient and quicker transportation and transfer.

Description

technical field [0001] The invention relates to a heat-shrinkable color beverage packaging color film and a production method thereof, in particular to a heat-shrinkable color beverage packaging color film used in modern beverage packaging, and belongs to the technical field of packaging. Background technique [0002] Three-layer co-extruded heat-shrinkable beverage packaging film is an indispensable packaging material in the daily life of modern society. In the prior art, cartons are generally used for beverage outer packaging. Cartons are expensive to use and prone to damage during transportation. , especially in severe weather such as wind, rain and hail, it is difficult to transport. Due to different raw material processing techniques, existing shrink films on the market have low strength, low transparency, poor heat sealability, and no sense of color, so it is difficult to meet the requirements of high-quality beverage packaging. Contents of the invention [0003] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D65/02B65D65/38C08L23/06B29C49/04B29C47/92B29B7/72
CPCY02W30/80
Inventor 方寿良
Owner 无锡市方成彩印包装有限公司
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