CN104911954A - Natural anti-oil degradable food packaging paper and preparation method thereof - Google Patents
Natural anti-oil degradable food packaging paper and preparation method thereof Download PDFInfo
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Abstract
The invention relates to natural anti-oil degradable food packaging paper, which comprises a fiber layer, a protein film layer and an anti-oil liquid layer arranged between the fiber layer and the protein film layer. The present invention further provides a preparation method of the natural anti-oil degradable food packaging paper. The natural anti-oil degradable food packaging paper of the present invention is completely a green and safe food packaging article, the preparation method has characteristics of easily available raw materials, simple operation, low cost, economy and environmental protection, the problems of conflict and the like between the food packaging waste and the environmental protection are completely solved, and the paper has characteristics of high strength, good flexibility, breaking resistance, and wide application range.
Description
Technical field
The present invention relates to a kind of natural grease proofing degradable food packaging paper and preparation method thereof, belong to food service industry technical field.
Background technology
Along with the development of food service industry, food wrapper kind is day by day various, relatively common are cake paper, candy wrapper, vermicelli carton, bakers paper, biscuit carton, ice cream external packing paper using, wherein waterproof and oilproof type food wrapper gains great popularity, but most all with macromolecular compounds such as polystyrene, polyvinyl chloride, polypropylene for covering material, simultaneously these materials have not easily degrade, recovery difficult is large, burn and produce toxic gas and endanger the features such as ecological environment.In addition, in process of production, the chemicals such as the permeability-reducing admixture added in paper pulp, sizing agent, bleaching agent, coloring agent, stabilizing agent, ultra-violet absorber and plasticizer.The harmful components generation migration under hot and humid environment of partial chemical product makes food be polluted.In a word, food wrapper endangers the physical and mental health of people to a certain extent and brings adverse effect to ecological environment.
But along with the enhancing of socioeconomic development and popular environmental consciousness, research and develop a kind of there is frivolous transparent, colorless and odorless, main trend that nontoxic easy degraded, degradable wrapping paper have become the development of World of Food industrial technology, be also the Main way of following food packing industry development.
The degradable food package film utilizing natural biologic material as obtained in soybean protein is had to pack for oily food at present, but edible packaging is extensive not enough for commercial applications, synthesis macromolecule plastic film can't be replaced, the bad mechanical property of its reason mainly film, natural edible polymer material itself has hydrophily, its resistance is moist limited, and its problem such as packaging heat sealability and impressionability etc. need to solve simultaneously.
Summary of the invention
goal of the invention:in order to overcome the defect of prior art, the object of this invention is to provide a kind of natural grease proofing degradable food packaging paper and preparation method thereof.
technical scheme:the natural grease proofing degradable food packaging paper of one provided by the invention, the grease proofing liquid layer comprising fibrage, albumen rete and be arranged between fibrage and albumen rete.
Present invention also offers the preparation method of above-mentioned natural grease proofing degradable food packaging paper, comprise the following steps:
(1) fibrolaminar preparation: with straw or wheat stalk for raw material, cleans in the water be placed on containing sodium bicarbonate to soak and comes unstuck for 3-5 days; Add 500-700 part water, 3-5 part caustic soda by every 50 parts of stalks, the straw after coming unstuck or wheat stalk are decocted; Flood in watery hydrochloric acid, clear water is washed, dry; Again the straw after process or wheat stalk are pulverized 20-30min, cross 100-150 mesh sieve; Straw after pulverizing or wheat stalk are added water with talcum powder, agaropectin, amylan and stirs, cool, under room temperature, 0.10-0.20Mpa, preserve 1-2h, obtain film liquid; Utilize film rod coated film liquid on a glass, control wet-film thickness is 1-2mm; Drying, obtains fibrage;
(2) preparation of protein liquid: take soybean as raw material, cleans, soaking at room temperature 3-5h, defibrination, boils and crosses 100-150 mesh sieve afterwards, obtains bean dregs; Bean dregs are joined gelatinization in adjunce copper, stir and add sodium bicarbonate aqueous solution tune pH to 7-8 simultaneously, add protease hydrolytic reaction 3-5h, obtain amyloid proteins and stick with paste; Add modifier aqueous solution again, 30-60 DEG C of hybrid reaction 10-20min, obtains complex liquid; Add plasticizer and auxiliary additive in complex liquid, 30-60 DEG C is continued to stir 10-20min, obtains protein liquid;
(3) preparation of anti-fluid: shitosan, acetic acid and sodium alginate dissolved in deionized water and stirs, obtaining anti-fluid;
(4) preparation of natural grease proofing degradable food packaging paper: coat on fibrage by anti-fluid, after cooling, then coats protein liquid on grease proofing liquid layer, controls grease proofing below liquid layer thickness 1mm; Control protein liquid thickness 1-2mm; Drying, to obtain final product.
In step (1), the mass concentration of sodium bicarbonate is 0.1-0.2%.
In step (1), the weight ratio of straw or wheat stalk, agaropectin, amylan, talcum powder, water is (10-20): (10-20): (5-15): (5-15): 100.
In step (2), the mass concentration of the sodium bicarbonate aqueous solution is 0.1-0.2%.
In step (3), in anti-fluid, the weight percent concentration of shitosan is 0.5% ~ 10%, and the concentration of volume percent of acetic acid is 0.5% ~ 10%; The weight percent concentration of sodium alginate is 0.1% ~ 10%.
beneficial effect:natural grease proofing degradable food packaging paper provided by the invention is completely with the packaging for foodstuff articles for use being a kind of green safety, raw material is easy to get, simple to operate, with low cost, economic environmental protection, fully solve the problems such as the contradiction between packaging for foodstuff discarded object and environmental protection, and its paper strength is high, pliability good, not easily broken, applied widely.The present invention is natural grease proofing effective.
Detailed description of the invention
According to following embodiment, the present invention may be better understood.But those skilled in the art will readily understand, concrete material proportion, process conditions and result thereof described by embodiment only for illustration of the present invention, and should can not limit the present invention described in detail in claims yet.
Embodiment 1
The preparation method of natural grease proofing degradable food packaging paper, comprises the following steps:
(1) fibrolaminar preparation: with vegetables or fruit for raw material, clean blanching treatment in the boiling water bath be placed on containing sodium bicarbonate, in boiling water, the mass concentration of sodium bicarbonate is 0.15%; Be placed in cold water again to cool rapidly; The vegetables of cooling or fruit raw material are placed in beater pull an oar, are separated vegetable juice or fruit juice; Vegetables slag and pomace are pulverized 25min, crosses 120 mesh sieves; Filtrate to be placed under 50MPa homogeneous 4 times, obtains uniform fibers mixture liquid; Boil 2.5min, make fibers mixture liquid swelling; Continue to boil 2.5min, be cooled to 65 DEG C, add weight ratio Carboxymethyl Cellulose and sodium alginate, be stirred to and dissolve completely, then add beeswax, stir, cooling, preserves 1.5h, makes degassed, obtain film liquid under room temperature, 0.15Mpa; Utilize film rod coated film liquid on a glass, control wet-film thickness is 1-2mm; Drying, obtains fibrage; The weight ratio of straw or wheat stalk, agaropectin, amylan, talcum powder, water is (10-20): (10-20): (5-15): (5-15): 100;
(2) preparation of protein liquid: take soybean as raw material, cleans, soaking at room temperature 4h, defibrination, boils rear mistake 120 mesh sieve, obtain bean dregs; Bean dregs are joined gelatinization in adjunce copper, it is that the 0.15% sodium bicarbonate aqueous solution adjusts pH to 7-8 that stirring adds mass concentration simultaneously, adds protease hydrolytic reaction 4h, obtains amyloid proteins and stick with paste; Add modifier aqueous solution again, 50 DEG C of hybrid reaction 15min, obtain complex liquid; Add plasticizer and auxiliary additive in complex liquid, 50 DEG C are continued to stir 15min, obtain protein liquid; Wherein, the weight of Carboxymethyl Cellulose is 0.8% of fibers mixture liquid weight, and the weight of sodium alginate is 0.35% of fibers mixture liquid weight, and the weight of beeswax is 0.50% of fibers mixture liquid weight; The weight ratio of straw or wheat stalk, agaropectin, amylan, talcum powder, water is 20:10:5:15:100;
(3) preparation of anti-fluid: shitosan, acetic acid and sodium alginate dissolved in deionized water and stir, obtain anti-fluid, in anti-fluid, the weight percent concentration of shitosan is 5%, and the concentration of volume percent of acetic acid is 5%; The weight percent concentration of sodium alginate is 5%;
(4) preparation of natural grease proofing degradable food packaging paper: coat on fibrage by anti-fluid, after cooling, then coats protein liquid on grease proofing liquid layer, controls grease proofing below liquid layer thickness 1mm; Control protein liquid thickness 1-2mm; Drying, to obtain final product.
Embodiment 2
The preparation method of natural grease proofing degradable food packaging paper, comprises the following steps:
(1) fibrolaminar preparation: with vegetables or fruit for raw material, clean blanching treatment in the boiling water bath be placed on containing sodium bicarbonate, in boiling water, the mass concentration of sodium bicarbonate is 0.1%; Be placed in cold water again to cool rapidly; The vegetables of cooling or fruit raw material are placed in beater pull an oar, are separated vegetable juice or fruit juice; Vegetables slag and pomace are pulverized 20min, crosses 150 mesh sieves; Filtrate to be placed under 40MPa homogeneous 5 times, obtains uniform fibers mixture liquid; Boil 2min, make fibers mixture liquid swelling; Continue to boil 3min, be cooled to 60 DEG C, add weight ratio Carboxymethyl Cellulose and sodium alginate, be stirred to and dissolve completely, then add beeswax, stir, cooling, preserves 2h, makes degassed, obtain film liquid under room temperature, 0.20Mpa; Utilize film rod coated film liquid on a glass, control wet-film thickness is 1-2mm; Drying, obtains fibrage; The weight ratio of straw or wheat stalk, agaropectin, amylan, talcum powder, water is 10:20:15:5:100;
(2) preparation of protein liquid: take soybean as raw material, cleans, soaking at room temperature 3h, defibrination, boils rear mistake 100 mesh sieve, obtain bean dregs; Bean dregs are joined gelatinization in adjunce copper, it is that the 0.1% sodium bicarbonate aqueous solution adjusts pH to 7-8 that stirring adds mass concentration simultaneously, adds protease hydrolytic reaction 3h, obtains amyloid proteins and stick with paste; Add modifier aqueous solution again, 60 DEG C of hybrid reaction 10min, obtain complex liquid; Add plasticizer and auxiliary additive in complex liquid, 60 DEG C are continued to stir 10min, obtain protein liquid; Wherein, the weight of Carboxymethyl Cellulose is 0.5% of fibers mixture liquid weight, and the weight of sodium alginate is 0.5% of fibers mixture liquid weight, and the weight of beeswax is 0.24% of fibers mixture liquid weight;
(3) preparation of anti-fluid: shitosan, acetic acid and sodium alginate dissolved in deionized water and stir, obtain anti-fluid, in anti-fluid, the weight percent concentration of shitosan is 0.5%, and the concentration of volume percent of acetic acid is 0.5%; The weight percent concentration of sodium alginate is 10%;
(4) preparation of natural grease proofing degradable food packaging paper: coat on fibrage by anti-fluid, after cooling, then coats protein liquid on grease proofing liquid layer, controls grease proofing below liquid layer thickness 1mm; Control protein liquid thickness 1-2mm; Drying, to obtain final product.
Embodiment 3
The preparation method of natural grease proofing degradable food packaging paper, comprises the following steps:
(1) fibrolaminar preparation: with vegetables or fruit for raw material, clean blanching treatment in the boiling water bath be placed on containing sodium bicarbonate, in boiling water, the mass concentration of sodium bicarbonate is 0.2%; Be placed in cold water again to cool rapidly; The vegetables of cooling or fruit raw material are placed in beater pull an oar, are separated vegetable juice or fruit juice; Vegetables slag and pomace are pulverized 30min, crosses 100 mesh sieves; Filtrate to be placed under 60MPa homogeneous 3 times, obtains uniform fibers mixture liquid; Boil 3min, make fibers mixture liquid swelling; Continue to boil 2min, be cooled to 70 DEG C, add weight ratio Carboxymethyl Cellulose and sodium alginate, be stirred to and dissolve completely, then add beeswax, stir, cooling, preserves 1h, makes degassed, obtain film liquid under room temperature, 0.10Mpa; Utilize film rod coated film liquid on a glass, control wet-film thickness is 1-2mm; Drying, obtains fibrage;
(2) preparation of protein liquid: take soybean as raw material, cleans, soaking at room temperature 5h, defibrination, boils rear mistake 150 mesh sieve, obtain bean dregs; Bean dregs are joined gelatinization in adjunce copper, it is that the 0.2% sodium bicarbonate aqueous solution adjusts pH to 7-8 that stirring adds mass concentration simultaneously, adds protease hydrolytic reaction 5h, obtains amyloid proteins and stick with paste; Add modifier aqueous solution again, 30 DEG C of hybrid reaction 20min, obtain complex liquid; Add plasticizer and auxiliary additive in complex liquid, 30 DEG C are continued to stir 20min, obtain protein liquid; Wherein, the weight of Carboxymethyl Cellulose is 1.0% of fibers mixture liquid weight, and the weight of sodium alginate is 0.25% of fibers mixture liquid weight, and the weight of beeswax is 1.0% of fibers mixture liquid weight;
(3) preparation of anti-fluid: shitosan, acetic acid and sodium alginate dissolved in deionized water and stir, obtain anti-fluid, in anti-fluid, the weight percent concentration of shitosan is 10%, and the concentration of volume percent of acetic acid is 10%; The weight percent concentration of sodium alginate is 0.1%;
(4) preparation of natural grease proofing degradable food packaging paper: coat on fibrage by anti-fluid, after cooling, then coats protein liquid on grease proofing liquid layer, controls grease proofing below liquid layer thickness 1mm; Control protein liquid thickness 1-2mm; Drying, to obtain final product.
The grease proofness of paper is measured according to the method for TAPPI UM-557.One of the oils of often kind of test shown in table 1 is placed on paper, and after 15 seconds, observes oily situation about penetrating in paper.To not permeate the maximum grease proofness of the oil of the test of paper as grease proofness.
Grease proofness:
| Grease proofness | Castor oil | Toluene | Heptane | Grease proofness | Castor oil | Toluene | Heptane |
| 1 | 100 | 0 | 0 | 6 | 50 | 25 | 25 |
| 2 | 90 | 5 | 5 | 7 | 40 | 30 | 30 |
| 3 | 80 | 10 | 10 | 8 | 30 | 35 | 35 |
| 4 | 70 | 15 | 15 | 9 | 20 | 40 | 40 |
| 5 | 60 | 20 | 20 | 10 | 10 | 45 | 45 |
| Grease proofness | |
| Embodiment 1 | 9 |
| Embodiment 2 | 8 |
| Embodiment 3 | 8 |
| Commercially available | 7 |
Claims (6)
1. a natural grease proofing degradable food packaging paper, is characterized in that: the grease proofing liquid layer comprising fibrage, albumen rete and be arranged between fibrage and albumen rete.
2. a preparation method for natural grease proofing degradable food packaging paper, is characterized in that: comprise the following steps:
(1) fibrolaminar preparation: with straw or wheat stalk for raw material, cleans in the water be placed on containing sodium bicarbonate to soak and comes unstuck for 3-5 days; Add 500-700 part water, 3-5 part caustic soda by every 50 parts of stalks, the straw after coming unstuck or wheat stalk are decocted; Flood in watery hydrochloric acid, clear water is washed, dry; Again the straw after process or wheat stalk are pulverized 20-30min, cross 100-150 mesh sieve; Straw after pulverizing or wheat stalk are added water with talcum powder, agaropectin, amylan and stirs, cool, under room temperature, 0.10-0.20Mpa, preserve 1-2h, obtain film liquid; Utilize film rod coated film liquid on a glass, control wet-film thickness is 1-2mm; Drying, obtains fibrage;
(2) preparation of protein liquid: take soybean as raw material, cleans, soaking at room temperature 3-5h, defibrination, boils and crosses 100-150 mesh sieve afterwards, obtains bean dregs; Bean dregs are joined gelatinization in adjunce copper, stir and add sodium bicarbonate aqueous solution tune pH to 7-8 simultaneously, add protease hydrolytic reaction 3-5h, obtain amyloid proteins and stick with paste; Add modifier aqueous solution again, 30-60 DEG C of hybrid reaction 10-20min, obtains complex liquid; Add plasticizer and auxiliary additive in complex liquid, 30-60 DEG C is continued to stir 10-20min, obtains protein liquid;
(3) preparation of anti-fluid: shitosan, acetic acid and sodium alginate dissolved in deionized water and stirs, obtaining anti-fluid;
(4) preparation of natural grease proofing degradable food packaging paper: coat on fibrage by anti-fluid, after cooling, then coats protein liquid on grease proofing liquid layer, controls grease proofing below liquid layer thickness 1mm; Control protein liquid thickness 1-2mm; Drying, to obtain final product.
3. the preparation method of a kind of natural grease proofing degradable food packaging paper according to claim 2, is characterized in that: in step (1), and the mass concentration of sodium bicarbonate is 0.1-0.2%.
4. the preparation method of a kind of natural grease proofing degradable food packaging paper according to claim 2, it is characterized in that: in step (1), the weight ratio of straw or wheat stalk, agaropectin, amylan, talcum powder, water is (10-20): (10-20): (5-15): (5-15): 100.
5. the preparation method of a kind of natural grease proofing degradable food packaging paper according to claim 2, is characterized in that: in step (2), and the mass concentration of the sodium bicarbonate aqueous solution is 0.1-0.2%.
6. the preparation method of a kind of natural grease proofing degradable food packaging paper according to claim 2, is characterized in that: in step (3), in anti-fluid, and the weight percent concentration of shitosan is 0.5% ~ 10%, and the concentration of volume percent of acetic acid is 0.5% ~ 10%; The weight percent concentration of sodium alginate is 0.1% ~ 10%.
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Cited By (9)
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| CN106168004A (en) * | 2016-08-29 | 2016-11-30 | 董晓 | A kind of preparation method of medical packing paper Cypres |
| CN106368047A (en) * | 2016-10-09 | 2017-02-01 | 袁艳君 | Preparation method of biopolymer-coated type oil-proof packaging paper |
| CN106883616A (en) * | 2017-03-15 | 2017-06-23 | 邓德祥 | A kind of packaging material with bean dregs as matrix |
| CN108130818A (en) * | 2017-12-21 | 2018-06-08 | 浙江恒川新材料有限公司 | A kind of preparation method of double-colored grease proofing antibacterial food wrapping paper |
| CN109594425A (en) * | 2019-01-25 | 2019-04-09 | 芜湖薰衣草知识产权运营有限公司 | A kind of edible food package paper and preparation method thereof |
| CN109705597A (en) * | 2018-11-30 | 2019-05-03 | 湖南工业大学 | A kind of preparation method of agriculture waste fiber base high-strength degradable barrier film |
| CN109989284A (en) * | 2019-02-25 | 2019-07-09 | 黄彬彬 | A kind of environmental protection is grease proofing to use paper |
| CN114635307A (en) * | 2022-02-28 | 2022-06-17 | 齐鲁工业大学 | Biodegradable straw taking composite straw as raw material and preparation method thereof |
| CN115142299A (en) * | 2022-07-15 | 2022-10-04 | 安徽紫江喷铝环保材料有限公司 | Plastic-free coating environment-friendly packaging material |
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Cited By (12)
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| CN106168004A (en) * | 2016-08-29 | 2016-11-30 | 董晓 | A kind of preparation method of medical packing paper Cypres |
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| CN106883616A (en) * | 2017-03-15 | 2017-06-23 | 邓德祥 | A kind of packaging material with bean dregs as matrix |
| CN108130818A (en) * | 2017-12-21 | 2018-06-08 | 浙江恒川新材料有限公司 | A kind of preparation method of double-colored grease proofing antibacterial food wrapping paper |
| CN108130818B (en) * | 2017-12-21 | 2020-06-02 | 浙江恒川新材料有限公司 | Preparation method of double-color oil-proof antibacterial food packaging paper |
| CN109705597A (en) * | 2018-11-30 | 2019-05-03 | 湖南工业大学 | A kind of preparation method of agriculture waste fiber base high-strength degradable barrier film |
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| CN114635307A (en) * | 2022-02-28 | 2022-06-17 | 齐鲁工业大学 | Biodegradable straw taking composite straw as raw material and preparation method thereof |
| CN114635307B (en) * | 2022-02-28 | 2023-03-14 | 齐鲁工业大学 | Biodegradable straw taking composite straw as raw material and preparation method thereof |
| CN115142299A (en) * | 2022-07-15 | 2022-10-04 | 安徽紫江喷铝环保材料有限公司 | Plastic-free coating environment-friendly packaging material |
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Application publication date: 20150916 |