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Antimicrobial polyethylene film and preparing technique thereof

A polyethylene film and polyethylene technology, used in layered products, other household appliances, synthetic resin layered products, etc., can solve the problems of anti-corrosion and anti-deterioration of the contents, and achieve no toxic side effects, not easy to change color, Antibacterial effect Long lasting effect

Active Publication Date: 2009-02-18
HUANGSHAN NOVEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But how to really play a broad-spectrum antibacterial effect, anti-corrosion and anti-deterioration of the contents has not yet been achieved

Method used

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  • Antimicrobial polyethylene film and preparing technique thereof
  • Antimicrobial polyethylene film and preparing technique thereof
  • Antimicrobial polyethylene film and preparing technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The production of antibacterial polyethylene film is as follows: feeding process, material plasticizing extrusion process, inflation traction process, air ring cooling process, herringbone splint process, traction roller traction process, corona treatment process, film winding process:

[0041] In the feeding process:

[0042] The outer layer is blended with a formula weight ratio of LDPE:LLDPE=1:1;

[0043] The middle layer is blended with LDPE:LLDPE=1:1 formula weight ratio;

[0044] The inner layer is made of LDPE, LLDPE, MLLDPE, slip agent, antibacterial agent = 1:1:1:0.01:0.05;

[0045] In the material plasticizing extrusion process, the temperature of the barrel is set to 4 heating zones, which are: zone 1: 135°C; zone 2: 155°C; zone 3: 155°C; zone 4: 160°C; The heating zone of the die is 155°C; the temperature of the die head is set to 4 zones, respectively, the temperature of the first heating zone is 150°C; the temperature of the second zone of the die head h...

Embodiment 2

[0047] The outer layer is blended with the formula weight ratio of LDPE:LLDPE=1:0.5;

[0048] The middle layer is blended with the formula weight ratio of LDPE:LLDPE=1:1.2;

[0049] The inner layer is made of LDPE, LLDPE, MLLDPE, slippery agent, antibacterial agent = 1:0.5:1.0:0.01:0.08; the rest is the same as in Example 1.

Embodiment 3

[0051] The outer layer is blended with the formula weight ratio of LDPE:LLDPE=1:0.5;

[0052] The middle layer is blended with the formula weight ratio of LDPE:LLDPE=1:1.4;

[0053] The inner layer uses LDPE, LLDPE, MLLDPE, slippery agent, antibacterial agent = 1:1:1.5:0.01:0.10; the rest is the same as in Example 1.

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Abstract

The invention discloses an antibacterial polyethylene film and a method for preparing the same. The film consists of an outer layer, a middle layer and an inner layer; the outer layer consists of low-density polyethylene and linear low-density polyethylene; the middle layer consists of low-density polyethylene and linear low-density polyethylene; and the inner layer comprises low-density polyethylene, linear low-density polyethylene, metallocene linear low-density polyethylene, a slipping agent and an antibacterial agent. Compared with the prior art, the antibacterial polyethylene film has the characteristics of broad-spectrum sterilization, lasting antibacterial effect, good safety, no toxicity, no side effects and uneasy discoloration, thereby really achieving the protective function on packaged foods.

Description

technical field [0001] The invention belongs to the technical field of multi-layer co-extruded blow molding polyethylene film and its production process, and in particular relates to broad-spectrum antibacterial polyethylene film and its production process. Background technique [0002] At present, many flexible packaging films (bags) for food and medicine on the market use polyethylene (PE) film as the heat-sealing layer and directly contacts the contents. Since the flexible packaging film (bag) itself does not have antibacterial properties, some contents that require strict hygiene performance or require a long shelf life and are prone to corruption and deterioration cannot be effectively protected. Some shelf life does not meet the requirements, and some cause the contents to deteriorate, causing greater economic losses. In order to solve this problem, the existing products improve the barrier properties by strengthening the barrier properties of the flexible packaging c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/18B32B27/20B65D65/40B29C47/06B29D7/01
Inventor 汪学文吴志刚胡鸿波谢文汇周黎丽陈旭
Owner HUANGSHAN NOVEL
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