CN1099986C

CN1099986C - Packing material with liner of stalk (or straw) fibres and its production technology

Info

Publication number: CN1099986C
Application number: CN99115768A
Authority: CN
Inventors: 吴志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-10
Filing date: 1999-05-10
Publication date: 2003-01-29
Anticipated expiration: 2019-05-10
Also published as: CN1273204A

Abstract

The present invention relates to a packing material with liners of stalk (or straw) fibers and a production technology thereof, which utilizes stalk (or straw) fibers instead of paper pulp moulding and foam moulding. The method comprises the steps that stalks (or straw) are cleaned and sterilized, and then, the stalks (or straw) are crushed into powdery additive agents, hot pressed and shaped after the powdery additive agents are thoroughly mixed. The raw material comprises the following components by the proportion of the weight of 60 to 75% of stalk (or straw) powders, 20 to 30 % of the additive agents and 1 to 5% of water, wherein the additive agents are formed by that corn flour, rosin, clay, edible gelatin, Calcium carbonates and edible pigment are formulated. The present invention has the advantages of rich materials, low price, simple methods and easy degradation; the present invention is favorable for environmental protection and the treatment for white pollution.

Description

The packing material with liner of stalk (or straw) fibres production technology

Technical field

The present invention relates to the production technology of packing material with liner of stalk (or straw) fibres.

Background technology

What at present, known bumper and absorbing shock packing used is foamed plastic or paper mould material.Though foam plastic product has brought facility to people's life, be not worth owing to have to recycle, number of applications is big, and the volume that takes up room is also big.In natural environment, also be difficult to natural degradation even experience hundreds of years.They are imbedded in the soil, can destroy soil texture, the deterioration soil; Fall into the water, the meeting polluted-water influences water quality; Burning disposal, can produce ten surplus kind of noxious gas, atmosphere pollution.Border measuring and calculating factually, one mu of soil can make crop production reduction 11～23% as containing 3.9 kilograms of residual-film amounts.Produce and use chloro-fluoro-carbon kinds (being fluorine Lyons) as foaming agent in the foam plastic product process in a large number, meeting havoc ozone layer causes the human cancer attack rate to increase, and brings serious harm for the vegeto-animal growth of the earth." the Montreal convention " of the common signature of most countries head in 1987 clearly stipulated, must be stopped to produce and using fluorine Lyons as early as possible.The Chinese government promised to undertake 2003 in 1994, and China is except that refrigerator and hard polyurethane fat industry, and the foamed plastic industry will be cancelled comprehensively.Moulded paper pulp product, though environmental protection is had certain positive effect, because it expends the timber of a large amount of preciousnesses, the cost of product height is difficult to make consumers in general to accept.Solve plastic wastes pollution technology and listed in one of 50 up-to-date technologys of 21 century by world authoritative institution.At present, states such as American and Britain, meaning, day, method begin the part achievement of scientific research is put goods on the market, and its major product only is agricultural mulching and plastic packaging bag, fail to be applied to the bumper and absorbing shock packing maturely so far and China is on the same level.

The content of invention

The objective of the invention is, make full use of very abundant vegetable fibre resources such as stalk, use specific process, formation can substitute the pad package material production technology of paper mould and foamed plastic, with the protection environment, eliminates white pollution.

The object of the present invention is achieved like this: it is a main raw material(s) with vegetable fibres such as wheat straws, makes additive with several safety non-toxic materials, through specially-shaped technology and forming technique, makes the high-fall pad package material of separating.Specifically:

1, raw material: at least a in the multiple natural plant fiber materials such as wheat straw stalk, cornstalk, sorghum stalk, straw, bagasse, cotton stalk, peanut shell, account for total amount 60～97% (straw and additive sum are 100);

2, additive: at least a in starch, rosin, calcium carbonate, clay, edible glue, the food coloring accounts for total amount 3～40% (straw and additive sum are 100);

3, forming technique: 120～250 ℃ of mold heated, mould has 0.05～2mm tapering, solves exhaust and release problems.

The manufacture method of above-mentioned degradable pad package material is as follows:

1, the raw material that can make pad package material cleans, dries;

2, can make raw material pulverizing to 50～200 orders of pad package material;

3, mix with additive, water, mould is injected in the activation back, pressurization 30-2000kg/cm ², mould is heated to 120～250 ℃, and clamp time is 2 seconds～60 seconds, and the packing embryo can be taken off rapidly after the die sinking;

4, can dispatch from the factory after the encapsulation sterilization.

The pad package material of this alternative paper mould and foamed plastic has that density is little, in light weight, compression strength is high, characteristics such as certain elasticity are arranged, and aboundresources, and is cheap, be easy to degraded, helps eliminating white pollution.

The specific embodiment

The agricultural crop straw of pulverizing 70%, additive 25%, water 5% injects mould behind the stirring and evenly mixing, pressurization 50-1000kg/cm ², 180 ℃ of mold temperatures, in 6 seconds of mould remaining time, the product embryo is taken out in die sinking, and sterilization, packing are dispatched from the factory.

Claims

1, a kind of production technology of packing material with liner of stalk (or straw) fibres, it is characterized in that: this pad package material is mixed after compression molding by the agricultural crop straw that is crushed to 50～200 order powder, additive and an amount of water, mold temperature is 120～250 ℃, mold pressing is 30-2000kg/cm2, mould remaining time is 2～60 seconds, and mould has 0.05～2mm tapering.

2, production technology according to claim 1, it is characterized in that: described agricultural crop straw is at least a in wheat straw stalk, cornstalk, sorghum stalk, cotton stalk, straw, bagasse, the peanut shell, account for component 60～97%, additive is at least a in starch, rosin, calcium carbonate, clay, edible glue and the food coloring, accounts for component 3～40% (straw and additive sum are 100).