High-strength food bag and preparation method thereof

A food bag, high-strength technology, applied in the field of food bags, can solve problems such as affecting the use of plastic food bags, becoming brittle, and softening.

Inactive Publication Date: 2015-09-09
TONGLING FOUNDER PLASTICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although plastic food bags can be suitable for containing food with fluid remaining in instant noodles, at higher or lower temperatures, the superior mechanical properties of plastic food bags will be greatly challenged, and may become soft or brittle. Thus affecting the use of plastic food bags

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0013] The invention provides a method for preparing a high-strength food bag, comprising:

[0014] 1) mixing the raw materials and performing heat treatment to form a mixture;

[0015] 2) extruding the mixture to obtain a plastic film;

[0016] 3) processing the plastic film into a high-strength food bag;

[0017] Wherein, the raw materials include polyethylene terephthalate, o-phenylphenol, fillers, coupling agents, silk, asbestos, white carbon black, saponins, iron leaves, diatomaceous earth, bran, palm palm, Bamboo shoots, starch, galangal, cohosh, cloves and magnolia.

[0018] In the present invention, the specific type of polyethylene terephthalate can be selected in a wide range, but in order to make the high-strength food bag have more excellent mechanical properties and anti-mold ability, preferably, polyethylene terephthalate Diethyl dicarboxylate is selected from one or more of Phyllostachys pubescens, Bamboo bamboo and Ci bamboo.

[0019] In the present inventi...

Embodiment 1

[0030] 1) At 25°C, mix polyethylene terephthalate (weight average molecular weight 40,000), o-phenylphenol, talcum powder, silane coupling agent KH-550, silk, asbestos, white carbon black, soap Horn, iron leaf, diatomaceous earth, bran, palm palm, bamboo shoots, wheat starch, galangal, cohosh, clove and magnolia (the weight ratio of each substance is 100:30:25:7:4:1.5:1 : 3.5: 6: 2: 10: 5: 15: 2: 4: 2: 3: 2) Mixed for 1.5 hours, followed by heat treatment at 200°C for 4 hours to prepare the mixture;

[0031] 2) extruding the above mixture at 180° C. to obtain a plastic film with a thickness of 0.08 mm;

[0032] 3) Process the above-mentioned plastic film into a high-strength food bag A1.

Embodiment 2

[0034] 1) At 15°C, mix polyethylene terephthalate (weight average molecular weight: 30,000), o-phenylphenol, attapulgite, silane coupling agent KH-560, silk, asbestos, white carbon black, Saponin, iron leaf, diatomaceous earth, bran, palm palm, bamboo shoots, wheat starch, galangal, cohosh, clove and magnolia (the weight ratio of each substance is 100:40:30:10:5:2: 1.5: 4: 8: 1: 5: 3: 9: 4: 7: 3: 4: 3.5) mixed for 1 h, then heat treated at 180 ° C for 3 h to prepare the mixture;

[0035] 2) extruding the above mixture at 170-190°C to obtain a plastic film with a thickness of 0.08mm;

[0036] 3) Process the above-mentioned plastic film into a high-strength food bag A2.

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Abstract

The invention discloses a high-strength food bag and a preparation method thereof. The preparation method comprises the following steps: (1) mixing raw materials, and carrying out thermal treatment, so as to form a mixture; (2) carrying out extrusion molding on the mixture, so as to prepare a plastic film; and (3) processing the plastic film into the high-strength food bag, wherein the raw materials include polyethylene terephthalate, o-phenylphenol, fillers, a coupling agent, natural silk, asbestos, white carbon black, fructus gleditsiae, fruticose dracaena leaves, diatomite, bran, hemp palm, bamboo clothing, starch, rhizoma alpiniae officinarum, rhizoma cimicifugae, clove and flos magnolia. The high-strength food bag prepared by virtue of the preparation method has excellent mechanical strength and mould resistance, and meanwhile, the raw materials in the preparation method are easily available, so that the industrial volume production of the high-strength food bag can be realized.

Description

technical field [0001] The invention relates to a food bag, in particular to a high-strength food bag and a preparation method thereof. Background technique [0002] Food bag, as the name implies, is a bag for food, a small bag, but it brings a lot of convenience to human life. According to the material classification, food bags can be divided into plastic food bags and paper food bags. Although paper food bags are easy to degrade, paper food bags are easily deformed or even degraded when exposed to fluids such as water and oil, thereby contaminating the packed food. The plastic food bag can greatly overcome the defect of deformation after encountering the fluid, and the plastic food bag can be widely used at present. [0003] Although plastic food bags can be suitable for containing food with fluid remaining in instant noodles, at higher or lower temperatures, the superior mechanical properties of plastic food bags will be greatly challenged, and may become soft or brittl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L3/02C08L97/02C08K13/02C08K5/138C08K3/36C08K3/34B65D30/02
CPCY02A40/90Y02W90/10
Inventor 陈可夏陈可亮
Owner TONGLING FOUNDER PLASTICS TECH
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