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CN1129664A - Packging products made from corn-stalks and manufacture thereof - Google Patents

Packging products made from corn-stalks and manufacture thereof Download PDF

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Publication number
CN1129664A
CN1129664A CN 94116536 CN94116536A CN1129664A CN 1129664 A CN1129664 A CN 1129664A CN 94116536 CN94116536 CN 94116536 CN 94116536 A CN94116536 A CN 94116536A CN 1129664 A CN1129664 A CN 1129664A
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China
Prior art keywords
corn
packging
products made
stalks
raw material
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Granted
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CN 94116536
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Chinese (zh)
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CN1049400C (en
Inventor
杨中平
杨林青
郭康权
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XIBEI AGRICULTURE UNIV
Northwest A&F University
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XIBEI AGRICULTURE UNIV
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Priority to CN94116536A priority Critical patent/CN1049400C/en
Publication of CN1129664A publication Critical patent/CN1129664A/en
Application granted granted Critical
Publication of CN1049400C publication Critical patent/CN1049400C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The packing material is made up of core in corn stalk through breaking, bleaching, drying, sorting, tiling, thermal-press moulding, demoulding, surface treatment and cutting. It features rich raw material, light weight, good damping performance and low cost. It is suitable to pack fruit, vegetable, egg, ceramics, glass product, etc.

Description

Packging products made from corn-stalks and preparation method thereof
The present invention relates to a kind of new packaging material and preparation method thereof, particularly be a kind of be raw material with the marrow in the maize straw, with packing articles of no rubber moulding molded fabrication techniques and preparation method thereof.
In recent years, on the packing of some far productss and the frangible commodity of rapid wear, generally adopted buffer packing gasket, material therefor mainly is foamed plastic and pulp goods, its good work, packaging character is good, but because rising steadily and the easy contaminated environment of plastic product of pulp price limited its application in some field.For this reason, both at home and abroad all in active development low cost, free of contamination novel equivalent material.Wherein, the patent of invention of people such as the Siping City Zhang Guangrui of Jilin Province application (number of patent application: 881051187), be that to adopt stalk, stem, the leaf of plant be raw material, add compression molding at normal temperatures behind the adhesives again.But the product that adopts this method to produce need consume a large amount of adhesivess, and the density of products obtained therefrom is bigger, lacks cushion characteristic, thereby its field of application is restricted.
The purpose of this invention is to provide and a kind ofly have that with low cost, light weight, cushion characteristic are good, technology simply reaches free of contamination Packging products made from corn-stalks and preparation method thereof.
The present invention is achieved in that at first the fresh corn stalk is carried out natural seasoning, therefrom isolate marrow (parenchymal tissue and vascular bundle) then as raw material, after fragmentation, bleaching, drying, sorting, mating formation, directly hot-forming in mould, and then after the demoulding, surface treatment and cutting, make the mold pressing packing articles.Isolated marrow raw material should keep wherein original vascular bundle, strength and stiffness with the enhancement mode stampings, percentage of impurity in the raw material (amount that contains leaf and outer skin portion) should be less than 10%, its oversize should be greater than 75% after raw material was crossed 40 mesh sieves, and the particle granularity is advisable with 0.5-10 millimeters after fragmentation.Its concrete processing step and main technologic parameters are as follows:
1, fragmentation: raw material generally need be crushed to parenchymal tissue again and be graininess, and dimension Guan Shu is elongated thread, and the granularity of particle is advisable with 0.5-10 millimeters
2, bleaching and surface treatment: bleaching and surface-treated main purpose are to improve product appearance, enhance product performance, and spray cured, anticorrosion with painting agent or antistaling agent, directly print trade mark etc. as the surface, can select for use or cast out according to the purposes of product.
3, drying: if the particle water ratio greater than 15%, needs carry out drying to particle, making its water ratio is 8-15% to be advisable before the mold pressing.
4, sorting:, remove the parts of fine powder according to the properties of product requirement.
5, mat formation: particle can directly be mated formation in mould, and the integral thickness of the back material base of mating formation should be even, mats formation than desirable 13: 1-20: 1.
6, compression molding: mould is pressed product styling, can the single-piece moulding, also can one-shot forming many, and cut apart member after the demoulding again.Its principal parameter is: hot pressing temperature is 120-180 ℃, and pressure is 0.5-2.5MPa, every millimeter finished product thickness mold pressing 10-20 seconds.
7, article shaped promptly becomes finished product through the demoulding, after cutting apart.
The maize straw raw material that is adopted should be sturdy, does not allow rotten going rotten, and must not accompany foreign material such as silt, stone and metal.Preferably through about one month natural air drying, its water ratio is reduced to about 20% after the maize straw raw material results, so that store and separate.Isolated marrow should be clean from maize straw, must not accompany dust and silt particle.Isolated leaf can be as raw material or the direct returning to farmland of making solid molding fuel, ammoniated forage; Isolated crust can improve the degree of utilization of maize straw, thereby reduce productive costs of the present invention effectively like this as the raw material of making the corn stalk wood-based plate.
The present invention utilizes agricultural to go up the huge maize straw resource of quantum of output and makes packing, and raw material sources are extensive, sufficient, and its production technology and equipment needed thereby are simple, and many variety production in enormous quantities are convenient in the technology strong adaptability, are suitable for making the plane molding article.Compared with similar products, the power consumption of its production process less, pollution-free, adopt no gum forming technology in addition, productive costs descends significantly.This mold pressing packing articles made from the marrow of maize straw has specious, intensity, rigidity and cushion characteristic are suitable, nontoxic, tasteless, aeration is good, cheap, characteristics such as discarded back is free from environmental pollution can be widely used in the inner packing of far products such as fruit, vegetables, birds, beasts and eggs and back yard industry product such as glass, ceramic.
The present invention provides a kind of novel green packing for packing business, and for effectively utilizing maize straw resource to open up a new way, prepared mold pressing packing articles market outlook are wide, economy and obvious social benefit.
The present invention will be further described below in conjunction with embodiment:
Embodiment 1: the vegetable and fruit packaging liner
Fig. 1 is a vegetable and fruit packaging liner scheme drawing, can be used for the packing of fruit and vegetables such as apple, pears, peach, Chinese gooseberry and tomato.The raw material disintegrating apparatus can adopt beater disintegrating machine, and the particle granularity is advisable with 0.5-3 millimeters, and the fine powder material that produces in the fragmentation can be removed in addition through 60 mesh sieve mechanical gradings and use it for anything else.Before the moulding particle water ratio drying is adjusted to 12%, the dry pneumatic convey drier that adopts.Particle can directly be mated formation in mould, and the material base integral thickness after mating formation should be even, mats formation than being 13: 1.Hot pressing is carried out on moulding press, and mould is pressed the design of vegetable and fruit packaging pad profile, and molding parameter is: 160 ℃ of temperature, and pressure 1MPa, the thickness of general vegetable and fruit packaging liner is 2-3 millimeters, needs mold pressing 30-40 seconds.Article shaped becomes finished product after the demoulding, cutting, check and packing.
Embodiment 2: the egg packaging pallet
Fig. 2 is an egg packaging pallet scheme drawing.At first raw material is crushed to granularity and is 2-5 millimeters, particle water ratio drying is adjusted to 10%, send into then and mat formation in the mould evenly, mat formation than getting 15: 1, it is 170 ℃ in temperature at last, pressure is under the condition of 1.5MPa, every millimeter thickness mold pressing 15 seconds, and the demoulding is after the cured finished product that is treated as of surface spray.
Embodiment 3: ceramic is packed every dish
Fig. 3 for ceramic packing every the dish structural representation, wherein 1 be packing chest, 2 is packed article, 3 pack every dish for mold pressing.At first the raw material glass is broken to granularity and is 0.5-3 millimeters, can bleach processing for refining porcelain, then particle water ratio drying is adjusted to 14%, send into and mat formation in the mould evenly, mating formation than getting 15: 1, is 150 ℃ in temperature at last, and pressure is under the mold pressing parameter of 1.5MPa, every millimeter finished product thickness mold pressing 13 seconds promptly becomes finished product after the demoulding.
The mold pressing packaging cushion of making of the present invention can also be used for other packaging field, as the packing of enamel ware, thin-wall metal goods, miniature instrument and equipment, if mold exchange and forming process done the requirement that some adjustment can be satisfied different purposes more.

Claims (7)

1, a kind of Packging products made from corn-stalks is characterized in that with the marrow in the maize straw be raw material, and its percentage of impurity is less than 10%, and its oversize is greater than 75% behind 40 mesh sieves excessively, and the particle granularity is advisable with 0.5-10 millimeters after fragmentation.
2, Packging products made from corn-stalks according to claim 1 is characterized in that the marrow in the maize straw is parenchymal tissue and vascular bundle.
3, Packging products made from corn-stalks according to claim 1 is characterized in that this packing articles can be made into vegetable and fruit packaging liner, egg packaging pallet and pottery, glasswork is packed every dish.
4, a kind of method for making of Packging products made from corn-stalks, it is characterized in that with the marrow in the maize straw be raw material, after fragmentation, bleaching, drying, sorting, mating formation, directly hot-forming in mould, and then be made through the demoulding, surface treatment and cutting process.
5, the method for making of Packging products made from corn-stalks according to claim 4 is characterized in that the granularity of raw material fragmentation is advisable with 0.5-10 millimeters; The particle water ratio is advisable with 8-15%.
6, the method for making of Packging products made from corn-stalks according to claim 4 is characterized in that mating formation than being 13: 1-20 in mould: 1.
7, the method for making of Packging products made from corn-stalks according to claim 4, it is characterized in that the principal parameter when compression molding is: hot pressing temperature is 120-180 ℃, and pressure is 0.5-2.5MPa, every millimeter finished product thickness mold pressing 10-20 seconds.
CN94116536A 1994-10-06 1994-10-06 Packging products made from corn-stalks and manufacture thereof Expired - Fee Related CN1049400C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN94116536A CN1049400C (en) 1994-10-06 1994-10-06 Packging products made from corn-stalks and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN94116536A CN1049400C (en) 1994-10-06 1994-10-06 Packging products made from corn-stalks and manufacture thereof

Publications (2)

Publication Number Publication Date
CN1129664A true CN1129664A (en) 1996-08-28
CN1049400C CN1049400C (en) 2000-02-16

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CN94116536A Expired - Fee Related CN1049400C (en) 1994-10-06 1994-10-06 Packging products made from corn-stalks and manufacture thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100386387C (en) * 2006-01-18 2008-05-07 大连轻工业学院 Method for producing package buffer material from pulp waste liquid and corn stalk pith
CN102953284A (en) * 2012-11-27 2013-03-06 山东泉林纸业有限责任公司 Corn straw raw material used for paper making
CN102975957A (en) * 2012-11-06 2013-03-20 无锡市羊尖兴达包装箱厂 Packing method utilizing crop straw
CN102995473A (en) * 2012-11-27 2013-03-27 山东泉林纸业有限责任公司 Corn stalk raw material used for papermaking
CN103061176A (en) * 2012-05-18 2013-04-24 刘晨 Manufacturing technology for corn straw cotton
CN103213181A (en) * 2013-04-19 2013-07-24 中南林业科技大学 Method for manufacturing non-glued particle board made of agricultural product residua and used as structural material
CN107186853A (en) * 2017-06-14 2017-09-22 杭州沛诺包装科技有限公司 A kind of processing method of the molded tray of the material based on wood chip

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87103594B (en) * 1987-05-14 1988-10-26 吉林省四平市水泥厂 Method for manufacturing board by using corn straws
CN1047470A (en) * 1989-05-19 1990-12-05 怀安县合成板厂 Plant straw artificial plate technology

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100386387C (en) * 2006-01-18 2008-05-07 大连轻工业学院 Method for producing package buffer material from pulp waste liquid and corn stalk pith
CN103061176A (en) * 2012-05-18 2013-04-24 刘晨 Manufacturing technology for corn straw cotton
CN103061176B (en) * 2012-05-18 2015-03-25 刘晨 Manufacturing technology for corn straw cotton
CN102975957A (en) * 2012-11-06 2013-03-20 无锡市羊尖兴达包装箱厂 Packing method utilizing crop straw
CN102975957B (en) * 2012-11-06 2015-06-24 无锡市羊尖兴达包装箱厂 Packing method utilizing crop straw
CN102953284A (en) * 2012-11-27 2013-03-06 山东泉林纸业有限责任公司 Corn straw raw material used for paper making
CN102995473A (en) * 2012-11-27 2013-03-27 山东泉林纸业有限责任公司 Corn stalk raw material used for papermaking
CN102953284B (en) * 2012-11-27 2015-03-11 山东泉林纸业有限责任公司 Corn straw raw material used for paper making
CN102995473B (en) * 2012-11-27 2015-03-25 山东泉林纸业有限责任公司 Corn stalk raw material used for papermaking
CN103213181A (en) * 2013-04-19 2013-07-24 中南林业科技大学 Method for manufacturing non-glued particle board made of agricultural product residua and used as structural material
CN107186853A (en) * 2017-06-14 2017-09-22 杭州沛诺包装科技有限公司 A kind of processing method of the molded tray of the material based on wood chip
CN107186853B (en) * 2017-06-14 2019-10-18 杭州国立工贸集团有限公司 A kind of processing method with the molded tray that sawdust is basic material

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