CN1100917C - Production process of plant fiber snack box and packaging container - Google Patents
Production process of plant fiber snack box and packaging container Download PDFInfo
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- CN1100917C CN1100917C CN98111536A CN98111536A CN1100917C CN 1100917 C CN1100917 C CN 1100917C CN 98111536 A CN98111536 A CN 98111536A CN 98111536 A CN98111536 A CN 98111536A CN 1100917 C CN1100917 C CN 1100917C
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- slurry
- snack box
- production technology
- packing container
- auxiliary agent
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- 239000000835 fiber Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 235000011888 snacks Nutrition 0.000 title claims abstract description 14
- 238000004806 packaging method and process Methods 0.000 title abstract description 4
- 239000002002 slurry Substances 0.000 claims abstract description 34
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 230000001954 sterilising effect Effects 0.000 claims abstract description 9
- 238000004537 pulping Methods 0.000 claims abstract description 4
- 241000196324 Embryophyta Species 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 claims description 17
- 238000012856 packing Methods 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000004659 sterilization and disinfection Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 241001264730 Callistemon salignus Species 0.000 claims description 3
- 229940037003 alum Drugs 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 125000002091 cationic group Chemical group 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 238000007334 copolymerization reaction Methods 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims 1
- 239000004033 plastic Substances 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 11
- 239000000047 product Substances 0.000 description 6
- 238000010009 beating Methods 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 244000050510 Cunninghamia lanceolata Species 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000007666 vacuum forming Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 101001031591 Mus musculus Heart- and neural crest derivatives-expressed protein 2 Proteins 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 241000209504 Poaceae Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Wrappers (AREA)
- Paper (AREA)
Abstract
The invention relates to a production process of a pollution-free disposable snack box and a packaging container, which is characterized by sequentially comprising the following production procedures: selecting materials, pulping, decoloring slurry, adding an auxiliary agent, molding and sterilizing. The present invention features that plant fiber is used as raw material, mechanical pulping is used, hydrogen peroxide is used as decolouring agent, and oil-proof and water-proof assistant is used, so that it has high strength, low cost, similar price to foamed plastic snack box, no pollution and easy degradation.
Description
The present invention relates to the production technology of a kind of pollution-free disposable snack box and packing container.
The development of the eighties plastics industry in latter stage, the mess tin of disposable foamed plastic manufacturing arises at the historic moment.Though it has characteristics such as pure white attractive in appearance, waterproof, grease proofing, insulation, but forming rubbish with the back is difficult to decompose, bury and destroy farmland, soil, burn and hinder air ambient, abandon into the rivers and lakes polluted source and destroy fishery, brought nonvolatil destruction for the ecological environment of the earth, threatening human existence, be called by common people " white pollution ".So many in the world countries have forbidden or have limited its production and the scope of application, and sought substitute.Comprehensive at present about the kind of mess tin substitute, approximately can be divided into paper products and plant fiber products two classes.The former can divide again paper pulp molded with two kinds of different technologies of cardboard moulding.The paper mould moulding is to utilize to float wood pulp or broken albefaction slurry entirely and be raw material, copies the type of making by vacuum mold after adding edible glue, finished product; And the cardboard moulding promptly is to be raw material with imported food packaging white board, with the Sheet Metal Forming Technology moulding that is similar to metallic plate processing, or by behind the common paper sheet metal forming again at the surface recombination layer of polyethylene, increase the grease-proof and waterproof performance of cardboard.Stationery mess tin weak point is, the production process of paper pulp is nearly all made bleaching agent with chlorine, and it not only produces serious water pollution, and also can be residual to the disadvantageous material of health in its goods, and cost is also high-leveled and difficult in popularization.The mess tin that utilizes string to process, raw material can be selected straw, rice bar, reed or other grass family wild plant for use, its technology be successively earlier with the plant fiber powder breakdown mill, add entry and edible glue mixing, compression molding, form at the water-fast glue of surperficial coated or compound one deck waterproof membrane again.This technology weak point be string after crushed, fiber shortens, and need add more colloid during production, and the cutlery box stretching resistance is poor, and is easily cracked; Then also needing has in addition increased technology difficulty at cutlery box surface recombination one deck waterproof membrane, also may cause polluting.
The production technology that the purpose of this invention is to provide pollution-free, labile plant fibre snack box of a kind of production process and packing container.
Task of the present invention is done in such a way that the production technology of a kind of plant fibre snack box and packing container, it is characterized in that its production process is followed successively by: select materials, the decolouring of slurrying, slurry, add auxiliary agent, moulding and sterilization.The details of each procedure requires to be described below respectively:
Select materials: with starching raw material preferably, its string length should be greater than 1.2mm as mess tin, content of cellulose the plant more than 40% all can, on the physicochemical property of plant, the fiber of xylophyta is better than herbaceous plant.
Slurrying: its operation be successively the water logging of raw material normal temperature, decatize, screw extruder squeeze loose after, behind defibrator process, mill, slurry washing, be milled to a certain degree by disc mill again.The water logging of raw material and decatize purpose are to make lignin sulfonation or softening, thereby fiber is not cut off in mill as far as possible and separates; The mill operation purpose of multiple tracks is to make fiber separation become single fiber; Slurry washing is that the leachate with string filters out.Temperature during decatize is between 105-115 ℃, and time 4-6 gets final product second; And the defibrination steam pressure is between 0.15-0.25Mpa.
To raw material is China fir thinnings or pine, birch, and its slurrying also can adopt the grinding stone wood grinder directly to grind into the slurry of required beating degree at normal temperatures and pressures.
Slurry decolouring: meet the sense organ requirement in order to satisfy the mess tin of producing, need former slurry is decoloured, make the pure white unanimity of its color and luster.Decolouring is meant that adding weight in the middle underflow material of obtaining is the hydrogen peroxide that slurry contains thing gross weight 2% admittedly, stirs more than 30 minutes under normal pressure, the condition of temperature more than 80 ℃.Utilize hydrogen peroxide to make decolorizer, accomplish environmentally safe substantially.According to different whiteness requirements, can repeat repeatedly bleaching process and prolong bleaching time.
Add auxiliary agent: the numerous food product packing articles, comprise mess tin, all require to have very high oil resistant, waterproof and heat resistance.The oil resistant mechanism of traditional handicraft is to form the physical property obstacle on body paper surface, and the speed that oil is seen through is slack-off or make it to see through hardly, but its negative interaction is to greatly reduce the original gas permeability of goods, and then influences the degraded of packing articles.The present invention utilizes the material surface tension principle, and also promptly when the surface tension of liquid during greater than certain material, intensive surface tension is less than the surface tension value of the liquid on intensive thing.Polymer builder is to be formed by following material copolymerization: 1, aluminum sulfate or alum, 2, two-the N-ethyl-perfluoroalkyl sulfoamino-group etherophosphoric acid, 3, resin FC-807,4, resin FR-2R, 5, stearic acid, 6, caustic soda, 7, cationic polyacrylamide.Production technology is to add No. 1 material (No. 1 be meant that above-mentioned numbering is aluminum sulfate or alum, down with), No. 5, No. 6, No. 7, No. 2, No. 3, No. 4 in reactor while stirring successively, charges into nitrogen in reinforced; Stir after 2-4 hour, add caustic soda and adjust the pH value, and stop to stir between the 5.5-7.4, left standstill 1-2 hour, above-mentioned reaction needs to carry out under 150-240 ℃ temperature and 1-5 atmospheric condition, then is cooled to 80 ℃ under normal pressure, adjust the pH value once more between the 5.5-7.4, auxiliary agent.The fibre concentration that is diluted to 2-5% is adjusted in slurry decolouring back, and adding weight ratio is the auxiliary agent of 1-3 ‰, adds while stirring at normal temperatures and pressures to get final product.Because the homemade oil resistant water repellent agent of the present invention is one according to the relation principle between the surface free energy with oil resistant hydration-resisting two, greatly reduce cost, improved quality, it is stable and reliable for performance in evidence.
Moulding: through above-mentioned pretreated slurry, utilize vacuum mold to copy to make certain specification and have the wet base of preliminary compactedness, and finish moulding through hot press.Under the synergy of temperature and pressure, make the water evaporates of wet base, density increases, hot pressing makes condensation anchor at the lignin fusion of fiber surface simultaneously, the dirty exhibition of high pressure disappears interface between the fiber surface covering and combines together, after the cooling fiber is glued together securely again.The intensity of mess tin is improved greatly.Wet base is under 135-150 ℃ temperature and 0.25-0.4Mpa pressure, and is hot-forming through 35-45s.
Sterilization: in type mess tin is packed behind ultraviolet sterilization for transportation and consumption use.
Characteristics of the present invention are to be raw material with the string, adopt machinery pulping, hydrogen peroxide is made decolorizer, and is equipped with the anti-water auxiliary agent of oil resistant, one-shot forming technique, the intensity of product is improved, and cost reduce greatly, close with foamed plastic mess tin price, and produce pollution-free, easily degraded has very high practical value, and good society and the environmental benefit of tool.Can be widely used on catering trade and other packaging industry and use, be a kind of substitute preferably.
The present invention will be further described below in conjunction with specific embodiment:
Embodiment one:
With the China fir thinnings is raw material, through section, 105 ℃ of decatizes 5 seconds, defibrator process under steam pressure 0.15Mpa, beating degree reaches 37-45, slurry is concentrated into and contains slurry and contain thing 10-15% (slurry of this concentration range is also referred to as middle underflow material, down with) admittedly, at normal pressure, under 80 ℃ of temperature, the adding slurry contains the hydrogen peroxide of thing gross weight 2% admittedly, through decolouring in 1.5 hours, whiteness reached 57-60SB, floated disposed slurry and was diluted to and contains slurry and contain thing 2% admittedly, the adding slurry contains the auxiliary agent of thing gross weight 2 ‰ admittedly, through vacuum forming, under 140 ℃ of temperature of hot press and 0.3Mpa pressure, hot-forming through 35-45s, and again behind ultraviolet sterilization, manufactured goods.
Embodiment two:
With the bagasse is raw material, after removing marrow, screening, go into the pond and soaked 2 hours, went into to steam pump, 110 ℃ of steamed 6 seconds, enter defibrator, defibrator process under the steam pressure 0.2Mpa, beating degree reaches 35-42, and slurry is concentrated into 10-15%, under normal pressure, 80 ℃ of temperature, the hydrogen peroxide of adding 2%, through decolouring in 2 hours, whiteness reached 55-58SB, floats disposed slurry and is diluted to 2%, add 3 ‰ auxiliary agent, through vacuum forming, under 145 ℃ of temperature of hot press and 0.35Mpa pressure, hot-forming through 35-45s, and behind ultraviolet sterilization, finished product is made.(each proportionate relationship and last example are together) embodiment three:
With the China fir thinnings is raw material, and the timber segment is milled to beating degree 33-42 by the grinding stone wood grinder, slurry is concentrated into 10-15%, under normal pressure, 80 ℃ of temperature, adds 2% hydrogen peroxide, through decolouring in 1 hour, whiteness reached 57-60SB, floats disposed slurry and is diluted to 2%, add 2.5 ‰ auxiliary agent, through vacuum forming, under 140 ℃ of temperature of hot press and 0.3Mpa pressure, hot-forming through 35-45s, and again behind ultraviolet sterilization, finished product is made.(each proportionate relationship and last example are together)
In above-mentioned example, be equipped with various vacuum molds, can produce mess tin, cup, dish and other packing container.
Claims (7)
1, the production technology of a kind of plant fibre snack box and packing container is characterized in that its production process is followed successively by:
(1) select materials: choose string length greater than 1.2mm, content of cellulose is a raw material the plant more than 40%;
(2) slurrying: with the water logging of raw material normal temperature, decatize, screw extruder squeeze loose after, behind defibrator process, mill, slurry washing, grind form slurry by disc mill again;
(3) slurry decolouring: former slurry is decoloured with a certain amount of hydrogen peroxide;
(4) add auxiliary agent: in slurry, add the anti-water auxiliary agent of oil resistant;
(5) moulding: adopt one-shot forming technique;
(6) sterilization: use the disinfection by ultraviolet light sterilization.
2, the production technology of plant fibre snack box according to claim 1 and packing container, the temperature that it is characterized in that decatize in the pulping process is between 105-115 ℃, and time 4-6 gets final product second; And the defibrination steam pressure is between 0.15-0.25Mpa.
3, the production technology of plant fibre snack box according to claim 1 and packing container is characterized in that slurrying also can adopt the grinding stone wood grinder directly raw material to be ground form slurry at normal temperatures and pressures.
4, the production technology of plant fibre snack box according to claim 1 and packing container, it is characterized in that the slurry decolouring is meant that adding weight in middle underflow material is the hydrogen peroxide that slurry contains thing gross weight 2% admittedly, stirs more than 30 minutes under normal pressure, the condition of temperature more than 80 ℃.
5, the production technology of plant fibre snack box according to claim 1 and packing container, it is characterized in that auxiliary agent is to be formed by following material copolymerization: 1, aluminum sulfate or alum, 2, two-N-ethyl-perfluoroalkyl sulfoamino-group etherophosphoric acid, 3, resin FC-807,4, resin FR-2R, 5, stearic acid, 6, caustic soda, 7, cationic polyacrylamide.
6, the production technology of plant fibre snack box and packing container according to claim 1 or 5, it is characterized in that adding auxiliary agent and be meant that adjusting the slurry that is diluted to 2-5% after slurry decolours contains substrate concentration admittedly, adding weight is the auxiliary agent that slurry contains thing gross weight 1-3 ‰ admittedly, stirs while adding at normal temperatures and pressures.
7, the production technology of plant fibre snack box according to claim 1 and packing container, it is characterized in that moulding is meant through pretreated slurry, utilize vacuum mold to copy to make certain specification and have the wet base of preliminary compactedness, wet base through hot press under 135-150 ℃ of temperature and 0.25-0.4Mpa pressure, hot-forming through 35-45s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111536A CN1100917C (en) | 1998-10-16 | 1998-10-16 | Production process of plant fiber snack box and packaging container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111536A CN1100917C (en) | 1998-10-16 | 1998-10-16 | Production process of plant fiber snack box and packaging container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1251870A CN1251870A (en) | 2000-05-03 |
| CN1100917C true CN1100917C (en) | 2003-02-05 |
Family
ID=5221509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98111536A Expired - Fee Related CN1100917C (en) | 1998-10-16 | 1998-10-16 | Production process of plant fiber snack box and packaging container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1100917C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149502A (en) * | 2017-12-23 | 2018-06-12 | 林荣铨 | A kind of bamboo fibre environment protecting paper and preparation method thereof |
| CN113529495B (en) * | 2021-07-22 | 2023-03-24 | 广西大学 | Preparation method of biomass-based tableware with high water stability |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2669729A1 (en) * | 1990-11-26 | 1992-05-29 | Rouviere Yves | Dry product dispensing device for vehicles |
| CN1107116A (en) * | 1994-08-31 | 1995-08-23 | 李伯伦 | Toxicless instant meal container and producing method |
| CN1145378A (en) * | 1995-09-12 | 1997-03-19 | 李卫东 | Disposable plant fibre snack box and package box |
-
1998
- 1998-10-16 CN CN98111536A patent/CN1100917C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2669729A1 (en) * | 1990-11-26 | 1992-05-29 | Rouviere Yves | Dry product dispensing device for vehicles |
| CN1107116A (en) * | 1994-08-31 | 1995-08-23 | 李伯伦 | Toxicless instant meal container and producing method |
| CN1145378A (en) * | 1995-09-12 | 1997-03-19 | 李卫东 | Disposable plant fibre snack box and package box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1251870A (en) | 2000-05-03 |
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