Multilayer coextrusion packaging film with paper hand feeling and preparation method of multilayer coextrusion packaging film

A multi-layer co-extrusion and packaging film technology, applied in the field of packaging materials, can solve the problems of discoloration, non-waterproof, and affecting the sensory effect of packaging paper, etc., and achieve the effect of color change and color adjustment

Inactive Publication Date: 2019-03-08
付进
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Usually, gifts and flowers are packaged with wrapping paper or biaxially stretched plastic film. The wrapping paper has various forms and beautiful patterns, but it is not waterproof, and it will change color after a long time of storage, which will affect the sensory effect of the wrapping paper; while the biaxially stretched Although the plastic film is waterproof, its surface is smooth, brittle, prone to static electricity, and the film is not degradable. The impact of plastic packaging film on the environment has attracted the attention of all sectors of society.

Method used

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  • Multilayer coextrusion packaging film with paper hand feeling and preparation method of multilayer coextrusion packaging film
  • Multilayer coextrusion packaging film with paper hand feeling and preparation method of multilayer coextrusion packaging film
  • Multilayer coextrusion packaging film with paper hand feeling and preparation method of multilayer coextrusion packaging film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The multi-layer co-extruded packaging film with papery feel with a thickness of 60 microns is prepared, comprising the following steps:

[0048] For the surface layer 11, 60 parts of LLDPE with a melt index of 1.5-2.4, 35 parts of yellow resin containing imitation paper particles, and 5 parts of biodegradation agent are added to the hopper 1 of the extruder, melted at a temperature of 200 ° C, and enter Die;

[0049] For the middle layer 12, 90 parts of LLDPE with a melt index of 1.5-2.4 and 10 parts of biodegradation agent are added to the hopper 2 of the extruder, melted at a temperature of 200°C, and enter the die;

[0050] In the inner layer 13, 60 parts of LLDPE with a melt index of 1.5-2.4, 35 parts of yellow resin containing imitation paper particles, and 5 parts of biodegradation agent are added to the hopper 3 of the extruder, and melted at a temperature of 200 ° C. into the die;

[0051] The tubular film extruded through the multi-layer die head and the die ...

Embodiment 2

[0056] The multi-layer co-extruded packaging film with papery feel that the preparation thickness is 100 microns comprises the following steps (feeding according to consumption in Table 1):

[0057] For the surface layer 11, LLDPE, yellow resin containing imitation paper particles, and biodegradation agent are added to the hopper 1 of the extruder, melted at a temperature of 200°C, and enter the die;

[0058]For the middle layer 12, ethylene copolymer and biodegradation agent are added to the hopper 2 of the extruder, melted at a temperature of 170°C, and enter the die;

[0059] For the inner layer 13, LLDPE, yellow resin containing imitation paper particles, and biodegradation agent are added to the hopper 3 of the extruder, melted at a temperature of 200°C, and enter the die;

[0060] Other steps are with embodiment 1.

Embodiment 3

[0062] The multi-layer co-extruded packaging film with papery feel that the preparation thickness is 100 microns comprises the following steps (feeding according to consumption in Table 1):

[0063] For the surface layer 11, LLDPE, yellow resin containing imitation paper particles, and biodegradation agent are added to the hopper 1 of the extruder, melted at a temperature of 200°C, and enter the die;

[0064] For the middle layer 12, ethylene copolymer and biodegradation agent are added to the hopper 2 of the extruder, melted at a temperature of 170°C, and enter the die;

[0065] In the inner layer 13, LLDPE, yellow resin containing imitation paper particles, and biodegradation agent are added to the hopper 3 of the extruder, melted at a temperature of 200°C, and enter the die;

[0066] Other steps are with embodiment 1.

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Abstract

The invention discloses a multilayer coextrusion packaging film with paper hand feeling. The multilayer coextrusion packaging film comprises a surface layer, 1-7 intermediate layers and an inner layerfrom top to bottom sequentially, wherein the surface layer is prepared from the following components in parts by weight: 0-80 parts of polyolefin, 0-60 parts of an ethylene copolymer, 15-35 parts ofresin containing paper-like particles and 1-10 parts of a biodegradable agent; the intermediate layers are prepared from the following components in parts by weight: 0-90 parts of polyolefin, 0-90 parts of an ethylene copolymer and 1-10 parts of a biodegradable agent; the inner layer is prepared from the following components in parts by weight: 0-80 parts of polyolefin, 0-60 parts of an ethylene copolymer, 15-35 parts of resin containing paper-like particles and 1-10 parts of a biodegradable agent, and polyolefin and ethylene copolymer are not zero at the same time. The multilayer coextrusionpackaging film has paper hand feeling, does not generate static electricity, is waterproof, has adjustable color and does not change color, and besides, the film is degradable and is an environment-friendly packaging material.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, and in particular relates to a multi-layer co-extruded packaging film with a paper-like feel and a preparation method thereof. Background technique [0002] Usually, gifts and flowers are packaged with wrapping paper or biaxially stretched plastic film. The wrapping paper has various forms and beautiful patterns, but it is not waterproof, and it will change color after a long time of storage, which will affect the sensory effect of the wrapping paper; while the biaxially stretched Although plastic film is waterproof, its surface is smooth, brittle, prone to static electricity, and the film is non-degradable. The impact of plastic packaging film on the environment has attracted the attention of all walks of life. With the improvement of people's quality of life, the requirements for gift and flower packaging are getting higher and higher. Contents of the invention [0003] The first...

Claims

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Application Information

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IPC IPC(8): B32B27/32B32B27/30B32B27/08B32B27/06B29C48/18B29C48/92B29L7/00B29L9/00B65D65/40
CPCB29L2007/00B29L2009/00B32B27/08B32B27/306B32B27/32B32B2307/21B32B2307/402B32B2307/716B32B2307/7265B32B2439/00B65D65/40B65D2565/381Y02W90/10
Inventor 付进
Owner 付进
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