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Plasm used for packaging cans for foodstuff

A food packaging and straw technology, applied in textiles and papermaking, non-fiber pulp addition, non-woody plant/crop pulp, etc., can solve the problems of high cost and low pulp yield, and achieve high pulp yield and raw material low price effect

Inactive Publication Date: 2008-03-12
哈尔滨大洋发展贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of pulp for canned food packaging. The production of the special pulp for canning not only overcomes the problem of low pulp yield in pulp production, but also solves the problem that the existing pulp molding technology is used to produce canned food. Packaged wood pulp has the problem of high cost

Method used

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Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0008] Specific embodiment one: the canned food packaging pulp of the present embodiment comprises straw herbaceous plant fiber, waterproofing agent, oil repellent and modified starch, wherein the weight ratio of each component is: straw class herbal plant fiber: Water repellent: oil repellant: modified starch=100:3~7:0.03~0.05:5~15. Both the water repellant and the oil repellant mentioned in this embodiment are produced by Tianjin Auxiliary Factory, and the modified starch is produced by Harbin General Pharmaceutical Factory and Harbin Alcohol Factory.

specific Embodiment approach 2

[0009] Embodiment 2: This embodiment is different from Embodiment 1 in that it also includes a whitening agent, and the weight ratio of the straw-like herb fiber to the whitening agent is 100:3-5. Other compositions and formulations are the same as in Embodiment 1. The whitening agent described in this embodiment is talcum powder.

specific Embodiment approach 3

[0010] Embodiment 3: This embodiment is different from Embodiment 1 and Embodiment 2 in that it also includes a retention agent, and the weight ratio of the straw-like herb fiber to the retention agent is 100:0.005-0.03. Other compositions and formulations are the same as those in Embodiments 1 and 2. The retention agent described in this embodiment is produced by Dandong Environmental Protection Auxiliary Factory.

[0011] In this embodiment, the pulp for canned food packaging is processed according to the following steps: After drying and harvesting the stalks of plants such as reeds and rice straws, cutting the grass after removing soil, stones, and weeds, and at the same time cutting the grass on a grass cutter. Dust removal treatment: the chopped straw enters the presoak tank for soaking, and then enters the steaming ball for cooking after soaking. Less than the cooking time of papermaking, when the fiber bundles are just separated; then enter the dehydrator for dehydrat...

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Abstract

This invention relates to a paper pulp raw material for packing canned food, which comprises thatch herbage fabric, waterproofing agent, oil-proof agent and modified starch, wherein the weight ratio of each component is: 100:3-7:0.03-0.05:5-15. The cost of said paper pulp is lower 85% compared with wood pulp. The canned food packing material made by said pulp is excellent, whose hardness, intensity and rigidity can compare with metal.

Description

Technical field: [0001] The invention relates to a pulp raw material used for canned food packaging. Background technique: [0002] At present, the use of pulp molding technology to produce canned food packaging mostly uses commercial wood pulp. The disadvantages of using wood pulp are: wood pulp fiber bundles are short, fine and dense, which is unfavorable for the stretching process involved in pulp molding technology, and the cost of wood pulp is also high. In existing pulp production, it is difficult to remove and discharge lignin, fructose and short fiber nodules contained in plant fibers, and there is a serious imbalance between the amount of input materials and the amount of pulp produced, and the pulp yield is low. With the deepening of environmental awareness, people began to look for new ways to develop raw materials for the production of canned food packaging. Invention content: [0003] The purpose of the present invention is to provide a kind of pulp for cann...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/12D21H21/00
Inventor 朱良方
Owner 哈尔滨大洋发展贸易有限公司
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