CN103321091A - Manufacturing method of novel degradable nontoxic disposable fast food bowl - Google Patents
Manufacturing method of novel degradable nontoxic disposable fast food bowl Download PDFInfo
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- CN103321091A CN103321091A CN2013102247659A CN201310224765A CN103321091A CN 103321091 A CN103321091 A CN 103321091A CN 2013102247659 A CN2013102247659 A CN 2013102247659A CN 201310224765 A CN201310224765 A CN 201310224765A CN 103321091 A CN103321091 A CN 103321091A
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Abstract
The invention relates to a manufacturing method of a novel degradable nontoxic disposable fast food bowl. The following steps are added to a basis of modern manufacturing processes of a disposable paper fast food bowl: nano-grade titanium dioxide is added to paper pulp, and the materials are well mixed; a layer of chitosan-gelatin composite film is uniformly coated in the fast food bowl, and a plasticizer glycerol and a mixture of stearic acid and palmitic acid are added; the mixture is heated in a drying box, and is dried under room temperature, such that a film is formed; and a hygiene zone is arranged at a sealing position between the side of the fast food bowl and the bowl cover plane. With the method provided by the invention, the content of toxic substances in paper can be effectively reduced, and bacterial resistance, water resistance, and corrosion resistance of the food packaging material can be improved. A PE plastic film is replaced by using the chitosan-gelatin composite film. With the production method, the meal box is degradable, non-toxic, harmless, safe, and environment-friendly.
Description
Technical field
The present invention relates to field of papermaking and technical field of polymer materials, particularly a kind of manufacture method of novel degradable non-toxic disposable bowl for snack.
Background technology
In recent years, the disposable fast food bowl is when offering convenience for life, and its feature of environmental protection and security also more and more receive the public's concern.The consumption of bowl for snack is big, and return period is short, if degraded can cause a large amount of pollutions well.Enterprise is many to use nonfood grade paper at outer inner surface, use grey paperboard at outer outer surface, use PE plastic film or paraffin paper at internal layer, when bowl for snack paper temperature is too high, harmful substance is wherein dissolved in the soup that contains a large amount of greases and is directly contacted with mouth, cause the harmful substance long-term accumulated in human body, can not discharge fully from human body, may bring out various diseases.Therefore, original disposable paper bowl for snack should be substituted by a kind of more environmental protection, safer bowl for snack.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of manufacture method of novel degradable non-toxic disposable bowl for snack, on the basis of modern disposable paper bowl for snack manufacturing process, improved, can improve the anti-microbial property of packaging material for food, make in this way the disposable fast food bowl of producing have the characteristics of degradable, nontoxic, safety and environmental protection.
In order to achieve the above object, the technical scheme that the present invention takes is: a kind of manufacture method of novel degradable non-toxic disposable bowl for snack, and step is as follows:
Step 1: add nano titanium oxide and mix in paper pulp, addition is the 0.5-2.5% of pulp quality;
Step 2: it is in 2% the acetum that the shitosan of 100g is dissolved in volume fraction, make chitosan solution, chitosan solution and gelatin are mixed according to the ratio of mass ratio 1.4:1-1.6:1, the plasticizer glycerine that adds 0.5g adds stearic acid that mass ratio is 1:1 and the mixture of palmitic acid again and makes blended liquid;
Step 3: above-mentioned steps gained blended liquid is formed into coating solution through vacuum deaerator, the PH scope that is adjusted to coating solution is 3.5-4.5, pouring film forming solution into Manufactured bowl for snack inside evenly is coated with, put into the drying box heating together, heating-up temperature is 45-55 ℃, the dry heat time is to shift out after 3-5 hour, at room temperature gets final product drying and forming-film, and coating thickness is 0.025-0.045mm;
Step 4: be provided with rectangle " sanitary district " at bowl for snack side and bowl capping sealing part, namely become the clip shape from the doubling of developed surface center, sandwich along the bowl for snack side and fastening;
Described paper pulp adopts former wood pulp.
Described " sanitary district " material adopts the PP5 polypropylene plastics, and the developed surface specification is long 8cm, wide 4cm, thickness 5mm.
The manufacture method of a kind of novel degradable non-toxic disposable bowl for snack that the present invention adopts, adopt the chitosan-gelatin composite membrane to replace the PE plastic film, this film is a kind of hybrid films with good biological degradability, just can degrade more than 2/3 at external 7 days, and can use lysozyme to accelerate its degradation speed; This film can be absorbed fully by human body, in vivo by humoral effect carry out swelling, a series of biodegradation processes such as break, can in human body, disappear substantially after 25 days, and biocompatibility is better, nontoxic to human body; In addition, the manufacture method that the present invention adopts has been added nano titanium oxide in pulping process, the former wood pulp of the strict employing of paper pulp simultaneously, can reduce the content of noxious material in the paper pulp effectively, improve anti-microbial property, water repelling property and the decay resistance of packaging material for food, and use plasticizer glycerine to guarantee the stability of composite membrane after the moulding, adopt the mixture of stearic acid and palmitic acid that the barrier of film is improved simultaneously; The material of " sanitary district " adopts the PP5 polypropylene plastics, possess acidproof alkali arranged, chemically-resistant material, anti-collision and advantage such as high temperature resistant, when the splendid attire high temperature food, can not produce a large amount of poisonous and harmful substances, noxious material in the bowl for snack paper that can effectively avoid causing because of hypersialosis is soaked the problem that enters the mouth, health.
Description of drawings
Fig. 1 is making beating log drivers section schematic diagram.
Fig. 2 is internal structure schematic diagram of the present invention.
Fig. 3 is the present invention's " sanitary district " partial structurtes schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
Referring to Fig. 1, modern paper making beating log drivers section is divided into making beating, joins slurry, degasification, slagging-off, operations such as screening.The manufacture method of a kind of novel degradable non-toxic disposable of the present invention bowl for snack has added following operation on the basis of modern paper making beating log drivers section: add nano titanium oxide in tankman's order.Fill out if adopt batch (-type) to add, then in joining stock tank or slurry compounding machine, add; As adopt continous mode to add and fill out, then in header box, add.Can guarantee that like this noxious material in the paper pulp is reduced.
Referring to Fig. 2,1 for adding the log ply of paper of nano titanium oxide, and 2 is the chitosan-gelatin composite membrane.
Referring to Fig. 3, be provided with rectangle " sanitary district " at bowl for snack side and bowl capping sealing part, namely become the clip shape from the doubling of developed surface center, sandwich along the bowl for snack side and fastening.When having a dinner, tight-lipped subsides sanitary district is edible, and the noxious material in the noodle bowl paper that can effectively avoid causing because of hypersialosis is soaked the problem that enters the mouth, health.
Embodiment one:
Step 1: add nano titanium oxide and mix in paper pulp, addition is 0.5% of pulp quality;
Step 2: it is in 2% the acetum that the shitosan of 100g is dissolved in volume fraction, make chitosan solution, chitosan solution and gelatin are mixed according to the ratio of mass ratio 1.6:1, the plasticizer glycerine that adds 0.5g adds stearic acid that mass ratio is 1:1 and the mixture of palmitic acid again and makes blended liquid;
Step 3: above-mentioned steps gained blended liquid is formed into coating solution through vacuum deaerator, the PH that is adjusted to coating solution is 4.0, pouring film forming solution into Manufactured bowl for snack inside evenly is coated with, put into the drying box heating together, heating-up temperature is 55 ℃, the dry heat time is to shift out after 5 hours, at room temperature gets final product drying and forming-film, and coating thickness is 0.025mm;
Step 4: be provided with rectangle " sanitary district " at bowl for snack side and bowl capping sealing part, namely become the clip shape from the doubling of developed surface center, sandwich along the bowl for snack side and fastening.
Embodiment two:
Step 1: add nano titanium oxide and mix in paper pulp, addition is 1.5% of pulp quality;
Step 2: it is in 2% the acetum that the shitosan of 100g is dissolved in volume fraction, make chitosan solution, chitosan solution and gelatin are mixed according to the ratio of mass ratio 1.5:1, the plasticizer glycerine that adds 0.5g adds stearic acid that mass ratio is 1:1 and the mixture of palmitic acid again and makes blended liquid;
Step 3: above-mentioned steps gained blended liquid is formed into coating solution through vacuum deaerator, the PH that is adjusted to coating solution is 3.5, pouring film forming solution into Manufactured bowl for snack inside evenly is coated with, put into the drying box heating together, heating-up temperature is 50 ℃, the dry heat time is to shift out after 4 hours, at room temperature gets final product drying and forming-film, and coating thickness is 0.035mm;
Step 4: be provided with rectangle " sanitary district " at bowl for snack side and bowl capping sealing part, namely become the clip shape from the doubling of developed surface center, sandwich along the bowl for snack side and fastening.
Embodiment three:
Step 1: add nano titanium oxide and mix in paper pulp, addition is 2.5% of pulp quality;
Step 2: it is in 2% the acetum that the shitosan of 100g is dissolved in volume fraction, make chitosan solution, chitosan solution and gelatin are mixed according to the ratio of mass ratio 1.4:1, the plasticizer glycerine that adds 0.5g adds stearic acid that mass ratio is 1:1 and the mixture of palmitic acid again and makes blended liquid;
Step 3: above-mentioned steps gained blended liquid is formed into coating solution through vacuum deaerator, the PH that is adjusted to coating solution is 4.5, pouring film forming solution into Manufactured bowl for snack inside evenly is coated with, put into the drying box heating together, heating-up temperature is 45 ℃, the dry heat time is to shift out after 3 hours, at room temperature gets final product drying and forming-film, and coating thickness is 0.045mm;
Step 4: be provided with rectangle " sanitary district " at bowl for snack side and bowl capping sealing part, namely become the clip shape from the doubling of developed surface center, sandwich along the bowl for snack side and fastening.
Claims (6)
1. the manufacture method of a novel degradable non-toxic disposable bowl for snack is characterized in that, comprises the steps:
Step 1: add nano titanium oxide and mix in paper pulp, addition is the 0.5-2.5% of pulp quality;
Step 2: it is in 2% the acetum that the shitosan of 100g is dissolved in volume fraction, make chitosan solution, chitosan solution and gelatin are mixed according to the ratio of mass ratio 1.4:1-1.6:1, the plasticizer glycerine that adds 0.5g adds stearic acid that mass ratio is 1:1 and the mixture of palmitic acid again and makes blended liquid;
Step 3: above-mentioned steps gained blended liquid is formed into coating solution through vacuum deaerator, the PH scope that is adjusted to coating solution is 3.5-4.5, pouring film forming solution into Manufactured bowl for snack inside evenly is coated with, put into the drying box heating together, heating-up temperature is 45-55 ℃, the dry heat time is to shift out after 3-5 hour, at room temperature gets final product drying and forming-film, and coating thickness is 0.025-0.045mm;
Step 4: be provided with rectangle " sanitary district " at bowl for snack side and bowl capping sealing part, namely become the clip shape from the doubling of developed surface center, sandwich along the bowl for snack side and fastening.
2. the manufacture method of a kind of novel degradable non-toxic disposable bowl for snack according to claim 1 is characterized in that, comprises the steps:
Step 1: add nano titanium oxide and mix in paper pulp, addition is 0.5% of pulp quality;
Step 2: it is in 2% the acetum that the shitosan of 100g is dissolved in volume fraction, make chitosan solution, chitosan solution and gelatin are mixed according to the ratio of mass ratio 1.6:1, the plasticizer glycerine that adds 0.5g adds stearic acid that mass ratio is 1:1 and the mixture of palmitic acid again and makes blended liquid;
Step 3: above-mentioned steps gained blended liquid is formed into coating solution through vacuum deaerator, the PH that is adjusted to coating solution is 4.0, pouring film forming solution into Manufactured bowl for snack inside evenly is coated with, put into the drying box heating together, heating-up temperature is 55 ℃, the dry heat time is to shift out after 5 hours, at room temperature gets final product drying and forming-film, and coating thickness is 0.025mm;
Step 4: be provided with rectangle " sanitary district " at bowl for snack side and bowl capping sealing part, namely become the clip shape from the doubling of developed surface center, sandwich along the bowl for snack side and fastening.
3. the manufacture method of a kind of novel degradable non-toxic disposable bowl for snack according to claim 1 is characterized in that, comprises the steps:
Step 1: add nano titanium oxide and mix in paper pulp, addition is 1.5% of pulp quality;
Step 2: it is in 2% the acetum that the shitosan of 100g is dissolved in volume fraction, make chitosan solution, chitosan solution and gelatin are mixed according to the ratio of mass ratio 1.5:1, the plasticizer glycerine that adds 0.5g adds stearic acid that mass ratio is 1:1 and the mixture of palmitic acid again and makes blended liquid;
Step 3: above-mentioned steps gained blended liquid is formed into coating solution through vacuum deaerator, the PH that is adjusted to coating solution is 3.5, pouring film forming solution into Manufactured bowl for snack inside evenly is coated with, put into the drying box heating together, heating-up temperature is 50 ℃, the dry heat time is to shift out after 4 hours, at room temperature gets final product drying and forming-film, and coating thickness is 0.035m;
Step 4: be provided with rectangle " sanitary district " at bowl for snack side and bowl capping sealing part, namely become the clip shape from the doubling of developed surface center, sandwich along the bowl for snack side and fastening.
4. the manufacture method of a kind of novel degradable non-toxic disposable bowl for snack according to claim 1 is characterized in that, comprises the steps:
Step 1: add nano titanium oxide and mix in paper pulp, addition is 2.5% of pulp quality;
Step 2: it is in 2% the acetum that the shitosan of 100g is dissolved in volume fraction, make chitosan solution, chitosan solution and gelatin are mixed according to the ratio of mass ratio 1.4:1, the plasticizer glycerine that adds 0.5g adds stearic acid that mass ratio is 1:1 and the mixture of palmitic acid again and makes blended liquid;
Step 3: above-mentioned steps gained blended liquid is formed into coating solution through vacuum deaerator, the PH that is adjusted to coating solution is 4.5, pouring film forming solution into Manufactured bowl for snack inside evenly is coated with, put into the drying box heating together, heating-up temperature is 45 ℃, the dry heat time is to shift out after 3 hours, at room temperature gets final product drying and forming-film, and coating thickness is 0.045mm;
Step 4: be provided with rectangle " sanitary district " at bowl for snack side and bowl capping sealing part, namely become the clip shape from the doubling of developed surface center, sandwich along the bowl for snack side and fastening.
5. according to the manufacture method of the described a kind of novel degradable non-toxic disposable bowl for snack of the arbitrary claim of claim 1 to 4, it is characterized in that described paper pulp adopts former wood pulp.
6. according to the manufacture method of the described a kind of novel degradable non-toxic disposable bowl for snack of the arbitrary claim of claim 1 to 4, it is characterized in that described " sanitary district " material adopts the PP5 polypropylene plastics, the developed surface specification is long 8cm, wide 4cm, thickness 5mm.
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| CN201310224765.9A CN103321091B (en) | 2013-06-06 | 2013-06-06 | Manufacturing method of novel degradable nontoxic disposable fast food bowl |
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| CN201310224765.9A CN103321091B (en) | 2013-06-06 | 2013-06-06 | Manufacturing method of novel degradable nontoxic disposable fast food bowl |
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| CN103321091B CN103321091B (en) | 2015-07-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190574A (en) * | 2017-07-11 | 2017-09-22 | 滁州海川印刷包装有限公司 | A kind of laccase graft modification chitosan cooperates with the composite packaging paper coating fluid of palm emulsion |
| CN113386408A (en) * | 2021-05-11 | 2021-09-14 | 江苏百通达科技股份有限公司 | Disposable tableware material, disposable tableware and preparation method |
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| CN2143444Y (en) * | 1992-06-15 | 1993-10-13 | 渠仁书 | Disposable thick paper tableware without public pollution |
| EP0471306B1 (en) * | 1990-08-11 | 1994-12-28 | Werner Georg Munk | Biodegradable container, method for its manufacture and use |
| CN1328082A (en) * | 2000-06-14 | 2001-12-26 | 北京市瑞德宝生物降解制品公司 | Fully biodegradable foamed composition and its shaping process |
| CN1111380C (en) * | 1998-05-06 | 2003-06-18 | 池延斌 | Formation method for wholly-degradable disposable tableware and mould structure thereof |
| CN1491975A (en) * | 2002-10-23 | 2004-04-28 | 沈阳祥溢植物纤维工艺制品厂 | Process for preparing disposable full degradation product |
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2013
- 2013-06-06 CN CN201310224765.9A patent/CN103321091B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0471306B1 (en) * | 1990-08-11 | 1994-12-28 | Werner Georg Munk | Biodegradable container, method for its manufacture and use |
| CN2143444Y (en) * | 1992-06-15 | 1993-10-13 | 渠仁书 | Disposable thick paper tableware without public pollution |
| CN1111380C (en) * | 1998-05-06 | 2003-06-18 | 池延斌 | Formation method for wholly-degradable disposable tableware and mould structure thereof |
| CN1328082A (en) * | 2000-06-14 | 2001-12-26 | 北京市瑞德宝生物降解制品公司 | Fully biodegradable foamed composition and its shaping process |
| CN1491975A (en) * | 2002-10-23 | 2004-04-28 | 沈阳祥溢植物纤维工艺制品厂 | Process for preparing disposable full degradation product |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190574A (en) * | 2017-07-11 | 2017-09-22 | 滁州海川印刷包装有限公司 | A kind of laccase graft modification chitosan cooperates with the composite packaging paper coating fluid of palm emulsion |
| CN113386408A (en) * | 2021-05-11 | 2021-09-14 | 江苏百通达科技股份有限公司 | Disposable tableware material, disposable tableware and preparation method |
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| CN103321091B (en) | 2015-07-22 |
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Effective date of registration: 20191202 Address after: 274000 Room 204, building 25, Huacheng community, Changjiang East Road, Heze Development Zone, Shandong Province Patentee after: Dushuntang Biotechnology Group Co., Ltd Address before: 710021 Shaanxi province Xi'an Weiyang university campus of Shaanxi University of Science and Technology Patentee before: Shaanxi University of Science and Technology |