CN110447710A - A kind of fresh-keeping laminates of sulfur dioxide, preparation method and application - Google Patents
A kind of fresh-keeping laminates of sulfur dioxide, preparation method and application Download PDFInfo
- Publication number
- CN110447710A CN110447710A CN201910643501.4A CN201910643501A CN110447710A CN 110447710 A CN110447710 A CN 110447710A CN 201910643501 A CN201910643501 A CN 201910643501A CN 110447710 A CN110447710 A CN 110447710A
- Authority
- CN
- China
- Prior art keywords
- sulfur dioxide
- laminates
- substrate
- fresh
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims abstract description 419
- 238000002360 preparation method Methods 0.000 title claims description 55
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 116
- 230000001070 adhesive effect Effects 0.000 claims abstract description 94
- 239000000758 substrate Substances 0.000 claims abstract description 91
- 239000000853 adhesive Substances 0.000 claims abstract description 85
- 239000000463 material Substances 0.000 claims abstract description 56
- 239000000203 mixture Substances 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 claims abstract description 17
- 235000010262 sodium metabisulphite Nutrition 0.000 claims abstract description 17
- DJEHXEMURTVAOE-UHFFFAOYSA-M potassium bisulfite Chemical compound [K+].OS([O-])=O DJEHXEMURTVAOE-UHFFFAOYSA-M 0.000 claims abstract description 6
- 229940099427 potassium bisulfite Drugs 0.000 claims abstract description 6
- 235000010259 potassium hydrogen sulphite Nutrition 0.000 claims abstract description 6
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims abstract description 5
- 229940079827 sodium hydrogen sulfite Drugs 0.000 claims abstract description 5
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims abstract description 5
- 235000009754 Vitis X bourquina Nutrition 0.000 claims description 22
- 235000012333 Vitis X labruscana Nutrition 0.000 claims description 22
- 235000014787 Vitis vinifera Nutrition 0.000 claims description 22
- -1 polyethylene Polymers 0.000 claims description 21
- 239000004698 Polyethylene Substances 0.000 claims description 14
- 244000017020 Ipomoea batatas Species 0.000 claims description 13
- 235000002678 Ipomoea batatas Nutrition 0.000 claims description 13
- 229920000573 polyethylene Polymers 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 10
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 8
- 235000012055 fruits and vegetables Nutrition 0.000 claims description 7
- 239000004745 nonwoven fabric Substances 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 6
- 229920006267 polyester film Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 229920001131 Pulp (paper) Polymers 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000010902 straw Substances 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 235000019359 magnesium stearate Nutrition 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 241000167854 Bourreria succulenta Species 0.000 claims description 2
- 240000001008 Dimocarpus longan Species 0.000 claims description 2
- 241000790917 Dioxys <bee> Species 0.000 claims description 2
- 235000000235 Euphoria longan Nutrition 0.000 claims description 2
- 235000019693 cherries Nutrition 0.000 claims description 2
- 239000010408 film Substances 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 240000006365 Vitis vinifera Species 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- WBZKQQHYRPRKNJ-UHFFFAOYSA-N disulfurous acid Chemical compound OS(=O)S(O)(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-N 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 229960003975 potassium Drugs 0.000 claims 1
- 235000007686 potassium Nutrition 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 abstract description 7
- 229940043349 potassium metabisulfite Drugs 0.000 abstract description 7
- 235000010263 potassium metabisulphite Nutrition 0.000 abstract description 7
- 238000003908 quality control method Methods 0.000 abstract description 2
- 230000007115 recruitment Effects 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 35
- 229920001971 elastomer Polymers 0.000 description 26
- 241000219095 Vitis Species 0.000 description 21
- 235000013399 edible fruits Nutrition 0.000 description 20
- 239000004831 Hot glue Substances 0.000 description 13
- 238000002156 mixing Methods 0.000 description 13
- 239000000654 additive Substances 0.000 description 12
- 230000000996 additive effect Effects 0.000 description 12
- 239000005038 ethylene vinyl acetate Substances 0.000 description 12
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 10
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 238000010410 dusting Methods 0.000 description 5
- 238000003306 harvesting Methods 0.000 description 5
- 229920002799 BoPET Polymers 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 240000007594 Oryza sativa Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 241000219094 Vitaceae Species 0.000 description 4
- 241001593968 Vitis palmata Species 0.000 description 4
- 235000021021 grapes Nutrition 0.000 description 4
- 239000012943 hotmelt Substances 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000004061 bleaching Methods 0.000 description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 3
- 229920001684 low density polyethylene Polymers 0.000 description 3
- 239000004702 low-density polyethylene Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 238000007705 chemical test Methods 0.000 description 2
- 238000013270 controlled release Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 235000013373 food additive Nutrition 0.000 description 2
- 239000002778 food additive Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 231100000674 Phytotoxicity Toxicity 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- BFMKFCLXZSUVPI-UHFFFAOYSA-N ethyl but-3-enoate Chemical compound CCOC(=O)CC=C BFMKFCLXZSUVPI-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229940117958 vinyl acetate Drugs 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B7/152—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O ; Elimination of such other gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/02—Layered products comprising a layer of paper or cardboard next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Zoology (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
Abstract
The fresh-keeping laminates of sulfur dioxide of the invention, including at least first base material, the second substrate, adhesive and sulfur dioxide releasing agent, the mixture of adhesive and sulfur dioxide releasing agent is uniformly distributed between first base material and the second substrate, the close adhesion under adhesive effect, sulfur dioxide releasing agent are fitted closely by heating pressurization with adhesive by heating pressurization for first base material and the second substrate；First base material is gas permeable material；Sulfur dioxide releasing agent includes one or more of sodium pyrosulfite, potassium metabisulfite, sodium hydrogensulfite, potassium bisulfite；The amount of sulfur dioxide is 3 ~ 40g/ square metres in laminates.Product of the present invention simple process is easy to quality control, can continous way production, high production efficiency, recruitment is few, production cost is low.
Description
Technical field
The present invention relates to fruit freshness preserving technical fields, more particularly, to a kind of fresh-keeping laminates of sulfur dioxide, preparation side
Method, and the purposes for fruit freshness preserving.
Background technique
Grape is one of important fruit variety in China, deep to be liked by the people.According to statistics, end the end of the year in 2015, Chinese Portugal
Grape cultivated area is close to 12,000,000 mu, and 1366.9 ten thousand tons of yield, Table Grape yield was sure to occupy first place in the world from 2011, from
Vinegrowing area has leapt to second place of the world from 2014, and vintage occupies the 8th, the world, and China has become the world
Grape big producer.According to statistics, due to adopting the influence of rear transportation fresh-retaining factor, loss up to 15% ~ 25% after grape harvest.
At present both at home and abroad extensively using sulfur dioxide as antistaling agent for grape, sulfur dioxide inhibits because it is with reproducibility
The activity of oxidizing ferment and microorganism prevents putrid and deteriorated fruit, discoloration and the loss of Vc, to can reach fresh-keeping purpose.Mesh
The fruit freshness preserving material common form of preceding release sulfur dioxide has, antistaling tablet for grapes (Chinese patent CN200410036500), Portugal
Grape fresh-keeping powder, grid be filled with sodium pyrosulfite sulfur dioxide fresh-keeping mat (1279020 A of Chinese patent CN,
CN102894072 A, 2481520 CN Y, CN1760446 A) and using the titanium dioxide that is prepared of coating complex method
Sulphur fresh-keeping mat (Chinese patent CN 106720237 A, CN104553204A etc.).
Antistaling tablet for grapes (Chinese patent CN200410036500), grape fresh-keeping powder, latticed filling sodium pyrosulfite
Sulfur dioxide fresh-keeping mat is unable to satisfy high speed, efficient production due to being limited by production efficiency of equipment.Using coating
The sulfur dioxide fresh-keeping mat that complex method is prepared, technology is comparatively advanced, but it is coated with medicament preparation, coating
Technique, equipment are relative complex, and environmental protection equipment, production equipment investment are larger.Sulfur dioxide Perserving materials select a kind of simple process,
Production equipment, environmental protection equipment less investment, the higher processing technology routine of production efficiency, is future developing trend.
Summary of the invention
It is an object of the present invention to provide a kind of fresh-keeping laminates of sulfur dioxide, the shortcomings that overcoming existing product and technology, especially
It is to provide that a kind of simple production process, equipment investment be few, the better sulfur dioxide Perserving materials of production efficiency.
It is a further object to provide a kind of preparation method and applications of the fresh-keeping laminates of sulfur dioxide, are used for
Preserving fruit and vegetable utilizing.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of fresh-keeping laminates of sulfur dioxide include at least first base material, the second substrate, adhesive and sulfur dioxide release
The mixture of agent, described adhesive and sulfur dioxide releasing agent is uniformly distributed between first base material and the second substrate, first base material
By heating pressurization, the close adhesion under adhesive effect, sulfur dioxide releasing agent pass through heating pressurization and bonding with the second substrate
Agent fits closely.
The first base material is gas permeable material.
The sulfur dioxide releasing agent include sodium pyrosulfite, potassium metabisulfite, sodium hydrogensulfite, in potassium bisulfite
It is one or more of.
Active constituent content is calculated as 3 ~ 40g/ square metres with sulfur dioxide in the fresh-keeping laminates of sulfur dioxide.
Sulfur dioxide releasing agent further includes auxiliary agent, auxiliary agent magnesium stearate, stearic acid, one or more of, institute in polyethylene wax
Stating auxiliary agent and accounting for the mass ratio of sulfur dioxide releasing agent is 10 ~ 80%；The sulfur dioxide releasing agent can pass through 50 meshes.
The auxiliary agent can also include the inert fillers such as talcum powder, diatomite, cellulose.
When implementing, after mixing by sulfur dioxide releasing agent, is crushed or be sieved, its particle is enable all to lead to
50 meshes are crossed, can also be detected by using particle size analyzer.Eye diameter corresponding to 50 meshes is 300 microns, uses grain
Degree instrument is detected, numerical value≤300 micron particle diameter D98.Preferred sulfur dioxide releasing agent can by 80 meshes, or
Numerical value≤180 micron particle diameter D98 are detected by particle size analyzer.
The quality of sulfur dioxide releasing agent is calculated as 3 ~ 40g/ squares with sulfur dioxide in the fresh-keeping laminates of sulfur dioxide
Rice.Effective component (sodium pyrosulfite, potassium metabisulfite, sulfurous acid based on the chemical knowledge on basis, in sulfur dioxide releasing agent
Hydrogen sodium, potassium bisulfite) and sulfur dioxide between corresponding relationship can convert, can also by conventional chemical test,
Calculate the mass ratio of sulfur dioxide.
The first base material is selected from non-woven fabrics, polyethylene breathable film, air-permeable paper, blotting paper, wood pulp paper, straw paper, beats
Hole film.The first base material preferred unit area grammes per square metre is 10 ~ 80g/ square metres.Preferred unit area grammes per square metre is 20 ~
50g/ square metres.
It is multiple that second substrate is selected from polyethylene film, polyester film, polypropylene film, polyvinyl chloride film, paper
Close film, non-woven fabrics, polyethylene breathable film, air-permeable paper, blotting paper, wood pulp paper, straw paper, perforated film；Second substrate is excellent
The unit area grammes per square metre of choosing is 10 ~ 60g/ square metres.
The grammes per square metre of the fresh-keeping laminates unit area of the sulfur dioxide is 40 ~ 240g/ square metres.
Described adhesive is solid, powdery hot melt adhesive, can pass through 50 meshes.Described adhesive and sulfur dioxide releasing agent
Mass ratio is 1:5 ~ 5:1；The mass ratio of preferred adhesive and sulfur dioxide releasing agent is 2:4 ~ 4:2.
The solid, powdery hot melt adhesive, can be selected from EVA rubber powder, TPU rubber powder, PP rubber powder, PA hot-melt adhesive powder, PE hot melt
Rubber powder；It can be one or more of mixing；The melting temperature of required solid, powdery hot melt adhesive preferably≤120 DEG C, more preferably melt
Temperature≤100 DEG C.
The ethylene-vinyl acetate resin is also referred to as ethylene vinyl acetate polymer, EVA resin.The ethyl vinyl acetate
Content >=28% of vinylacetate in vinylester resin.
The melting temperature of rubber powder can usually be tested, poly- second according to the method or 3416 method of ISO of industry ASTM D3418
Alkene (PE) resin, polypropylene (pp) resin are relatively conventional resin, common plastics industry.Thermoplastic polyurethane elastomer, again
Claim TPU, for adhesive etc..
The fresh-keeping laminates of sulfur dioxide can also have third substrate, adhesive and dioxy on the upper layer of second substrate
Change sulphur releasing agent to be uniformly distributed between the second substrate and third substrate, the second substrate layer and third substrate layer are existed by heating pressurization
Adhesive acts on lower close adhesion, and sulfur dioxide releasing agent is fitted closely by heating pressurization with adhesive；Third substrate is selected from
Polyethylene film, polyester film, polypropylene film, polyvinyl chloride film, paper-plastic composite film；The shared quality of the third substrate
It is 10 ~ 60g/ square metres.
The present invention can be prepared by two kinds of substrates and one layer of sulfur dioxide releasing agent, form the fresh-keeping layer of controlled release
Close object；Can also adhesive, sulfur dioxide releasing agent and addition third substrate be added, is prepared into containing three on this basis
The fresh-keeping laminates of layer substrate and two layers of sulfur dioxide releasing agent, dual controlled release.In contrast, the titanium dioxide of dual release
The sulfur dioxide of the fresh-keeping laminates of sulphur is longer deenergized period, is more suitable for the prolonged storage fresh-keeping of fruits and vegetables.
The preparation method of the fresh-keeping laminates of sulfur dioxide, comprising the following steps:
A, the first base material described in preparation and the second substrate；
B, the adhesive described in preparation is crushed or is sieved, and adhesive particle is made to pass through 50 meshes；
C, the sulfur dioxide releasing agent described in preparation, raw material meet fineness requirement by crushing or being sieved；
Breaking method and form are varied, and common disintegrating apparatus has Universalpulverizer, micronizer, airslide disintegrating mill etc.；
Distinct device controls the smashing fineness and feed particles degree size, motor that smashing fineness method is different, with Universalpulverizer
Revolving speed, separation power of fan, screened port size etc. are related；Airslide disintegrating mill smashing fineness and compressed air air pressure size, into
Expect that speed, grading wheel frequency etc. are related；
D, adhesive and sulfur dioxide releasing agent are proportionally uniformly mixed, form mixture；
The mixing of adhesive and sulfur dioxide releasing agent can be carried out using a variety of mixing apparatus.Common mixing apparatus includes V-type
Mixing machine, horizontal double spiral shell bag mixing machines, vertical biconical shape mixing machine, multi-dimensional movement mixing machine etc.；
E, the mixture that will be prepared in step D is spread in uniform on first base material or the second substrate, then covers another base
Material obtains the fresh-keeping laminates of sulfur dioxide under heating, pressurization.
Dusting combination process can be continous way, or discontinuous, discontinuous production efficiency are relatively slightly lower.It is excellent
Choosing uses continous way dusting combination process, and E step work in every is completed by equipment complex.There are two equipment complexes unreels,
Respectively correspond unreeling for two kinds of substrates, a winding, it is corresponding it is compound after material winding, quantitative dusting loading amount is (or quantitative
Powder transfer device), it is compound to complete the heating pressurization of dusting latter two material for corresponding uniform dusting, a set of heating pressurizing device.Heating
Pressurize it is compound can take many forms, conventional electric heating or heat-conducting oil heating, pressurization generally using rubber rollers use hydraulic cylinder
Or cylinder generates pressure, driving rubber rollers are completed to pressurize, and usually heating pressurization is synchronous progress, and is continuous work；It is preferred that
Heating pressuring method have heating method inside rotating roller, substrate synchronizes operating with roller rotation outside heating roller, is adding
Thermal process is completed at the same time pressurization.
The fresh-keeping laminates of the sulfur dioxide being prepared, can be according to the loading amount of fruits and vegetables, dosage or according to the ruler of packing case
It is very little, product of the invention is subjected to cutting for any required size.
The present invention provides application of the fresh-keeping laminates of sulfur dioxide in preserving fruit and vegetable utilizing.
The fruits and vegetables include grape, longan, lichee, cherry, sweet potato, and but not limited thereto.
The fresh-keeping laminates application method of sulfur dioxide prepared by the present invention is fairly simple.Different fruits adopt post-processing process,
Technique requires difference, but is mostly then packed, most by harvesting, being classified, rejecting mass defect or have the fruit of pest and disease damage
After circulated or stored.The fresh-keeping laminates of sulfur dioxide of the present invention are used in fruit postharvest packaging, each only in packaging
Vertical packaging (pouch, carton, transfer basket), is put into a fresh-keeping laminates.It can be layered on bottom, top can also be placed,
It is more preferable using fresh-keeping effect in conjunction with blotting paper.
The medicine have the advantages that
1, simple production process of the present invention is easy to quality control, can continous way production, high production efficiency, recruitment be few, production cost
It is low；
2, product of the present invention can be cut on demand, easy to use；
3, area coverage is big when product of the present invention uses, of good preservation effect, can avoid phytotoxicity.
Specific embodiment
It is right in conjunction with specific embodiments in order to which technical characteristic of the invention, purpose and beneficial effect are more clearly understood
Technical solution of the present invention is described in detail, and the present invention is not limited to the ranges that embodiment is recorded.Concrete model is not indicated
Raw material be commercially available conventional raw material, be not specified actual conditions test method be conventional method known in the art and routine
Condition.
In embodiment, the quality of sulfur dioxide releasing agent is indicated in the fresh-keeping laminates of sulfur dioxide with sulfur dioxide, base
Chemical knowledge in basis, in sulfur dioxide releasing agent effective component (sodium pyrosulfite, potassium metabisulfite, sodium hydrogensulfite,
Potassium bisulfite) and sulfur dioxide between corresponding relationship can convert, can also by conventional chemical test, calculate
The mass ratio of sulfur dioxide.For example conversion coefficient of the sodium pyrosulfite in terms of sulfur dioxide is 0.673.
The all technical of laminates, including content of sulfur dioxide, two layers of substrate stripping are evaluated in a specific embodiment
From property, sulfur dioxide rate of release.
Content of sulfur dioxide is tested using sulfur dioxide conventional chemical analysis test method, is referred to burnt sulfurous
The professional standard of sour sodium is tested.
Whether two layers substrate fissility by evaluation peel strength or peelable is evaluated.In evaluation index, two
Layer substrate be not peelable, most secured to bond, and peel strength is bigger, bonding is more solid, and peel strength is smaller, bonding is poorer, most
Poor result is that can not bond.
Sulfur dioxide release rate is by testing different phase sulfur dioxide residue and containing in simulated conditions or actual service conditions
Amount, to calculate sulfur dioxide release rate.Simulated conditions test method is in 25 DEG C of constant temperatures, by the fresh-keeping laminates of sulfur dioxide
It is placed in the crisper that relative humidity is >=98%, routine test sulfur dioxide release rate.Sulfur dioxide release rate may indicate that two
Sulfur oxide rate of release, especially different phase rate of release.
Raw materials used and specification is as follows in embodiment.
Sulfur dioxide releasing agent:
Sodium pyrosulfite, food additive grade, active constituent content >=96.5% are commercially available；
Potassium metabisulfite, food additive grade, active constituent content >=96.5% are commercially available；
Sulfurous acid acid hydrogen sodium, analysis is pure, commercially available；
Sulfurous acid potassium hydrogen phthalate, analysis is pure, commercially available.
Adhesive:
EVA rubber powder (ethylene-vinyl acetate resin), commercial solid low temperature EVA rubber powder, 50 ~ 60 mesh；
TPU rubber powder (thermoplastic polyurethane elastomer), be selected from Desmopan TPU 537M, softening point temperature≤95 DEG C, powdery,
Cross 50 sieve after it is spare；
LEPE rubber powder (low density polyethylene (LDPE)), commercially available, solids hot melt rubber powder, softening point: 87 DEG C, partial size: 50 ~ 120 mesh；
Retardation PES hot melt adhesive powder, commercially available, solids hot melt rubber powder, softening point temperature≤95 DEG C, 60 ~ 80 mesh；
PA hot-melt adhesive powder, commercially available, solids hot melt rubber powder, softening point temperature≤100 DEG C, 50 ~ 80 mesh.
The fresh-keeping laminates of sulfur dioxide are referred to as laminates in following embodiment, and the following are specific embodiments.
Embodiment 1
The present embodiment laminate and control laminates are all made of following raw material: first base material: non-woven fabrics, and 40g/ square metres；The
Two substrates: paper-plastic composite film, 45g/ square metres；Adhesive: EVA rubber powder；Sulfur dioxide releasing agent: sodium pyrosulfite.
Adhesive and the additive amount of sulfur dioxide releasing agent mixing are 40g/ squares in all laminates in the present embodiment
Rice.
In the present embodiment all laminates the preparation method is as follows:
A, the first base material described in preparation and the second substrate；
B, the adhesive described in preparation；
C, the sulfur dioxide releasing agent described in preparation, raw material are used by crushing, after 50 meshes excessively；
D, adhesive and sulfur dioxide releasing agent are proportionally uniformly mixed, form mixture；
E, the mixture that will be prepared in step D is spread in uniform in first base material using quantitative duster, then covers upper second
Substrate obtains the fresh-keeping laminates 1 of sulfur dioxide under heating (100 ~ 120 DEG C), pressurization.
In the laminates 1 of preparation, the mixture of adhesive and sulfur dioxide releasing agent is uniformly distributed first base material and second
Between substrate, first base material and the second substrate are held tightly together under adhesive effect by heating pressurization, sulfur dioxide
Releasing agent is fitted closely by heating pressurization with adhesive.
Laminates mass area ratio manufactured in the present embodiment is 125g/ square metres.
It is laminates 1-1 ~ 1-3 and the composition difference of control laminates 1,2, content of sulfur dioxide below.
Prepare laminates 1-1 ~ 1-3 according to above-mentioned laminates preparation method, compare laminates 1,2, preparation process equipment and
Parameter is identical.
It is the test result of laminates below.
1, laminates stripping performance test result:
Laminates 1-1,1-3 and control laminates 2, two layers of substrate be not peelable, and one layer of substrate of stripping process destroys, bonding
It is relatively firm.180 ° of peel strengths of laminates 1-2 are 7.4N/50mm, and two layers of substrate has certain bonding force, be not easily stripped；
180 ° of peel strengths for compareing laminates 1 are 2.4N/50mm, and two layers of substrate has that bonding force is smaller, and soft materials at two layers is
It is separable；
Being illustrated by laminates stripping performance test result, control laminates 1 are not able to satisfy stripping performance requirement, laminates 1-1 ~
1-3, control laminates 2 are able to satisfy stripping performance requirement.
2, the release rate result of laminates sulfur dioxide:
The release rate that different laminates change over time is tested according to analog detection method.
Following table is that different laminates change over time release rate data
From upper table sulfur dioxide release rate, the result shows that, laminates 1-1 ~ 1-3 sulfur dioxide rate of release is relatively steady, and discharges
Thoroughly.It is too fast to compare 1 rate of release of laminates, control laminates rate of release is excessively slow and release is not thorough.
Show that the peel strength for compareing laminates 1 is not up to standard by above-mentioned two test results, the two of control laminates 2
Sulfur oxide release is not thorough.Laminates 1-1 ~ 1-3 can satisfy peel strength and sulfur dioxide release performance requirement.
Embodiment 2
The composition of laminates 2 are as follows:
First base material: non-woven fabrics, 35g/ square metres；Second substrate: blotting paper, 42g/ square metres；
Adhesive: TPU rubber powder；Sulfur dioxide releasing agent: sodium pyrosulfite and potassium metabisulfite, mass ratio 1:1；
Adhesive and sulfur dioxide releasing agent mass ratio are 5:1, and adhesive and sulfur dioxide discharge agent composition in laminates
Additive amount is 60g/ square metres.
The amount of laminates sulfur dioxide releasing agent is calculated as 6.24g/ square metres with sulfur dioxide, laminates mass area ratio
It is 137g/ square metres.
The preparation method of laminates 2:
A, the first base material described in preparation and the second substrate；
B, the adhesive described in preparation；
C, the sulfur dioxide releasing agent described in preparation, after mixing, raw material is used by crushing, after 60 meshes excessively；
D, adhesive and sulfur dioxide releasing agent are proportionally uniformly mixed, form mixture；
E, the mixture that will be prepared in step D is spread in uniform on the second substrate using quantitative duster, then covers upper first
Substrate obtains the fresh-keeping laminates 2 of sulfur dioxide under heating (80 ~ 90 DEG C), pressurization.
In the laminates 2 of preparation, the mixture of adhesive and sulfur dioxide releasing agent is uniformly distributed first base material and second
Between substrate, first base material and the second substrate are held tightly together under adhesive effect by heating pressurization, sulfur dioxide
Releasing agent is fitted closely by heating pressurization with adhesive.
Embodiment 3
The composition of laminates 3 are as follows:
First base material: non-woven fabrics, 35g/ square metres；Second substrate: polyester film, 15g/ square metres；
Adhesive: LDPE rubber powder and EVA rubber powder, the two mass ratio are 1:1；Sulfur dioxide releasing agent: sodium pyrosulfite and sulfurous
Sour hydrogen sodium, the two mass ratio are 4:1；
Adhesive and sulfur dioxide releasing agent mass ratio are 1:5, and adhesive and sulfur dioxide discharge agent composition in laminates
Additive amount is 30g/ square metres.
The amount of laminates sulfur dioxide releasing agent is calculated as 16.53g/ square metres with sulfur dioxide, the unit area of laminates
Quality be 80g/ square metres.
The preparation method of laminates 3:
A, the first base material described in preparation and the second substrate；
B, the adhesive described in preparation；
C, the sulfur dioxide releasing agent described in preparation, after mixing, raw material is crushed by Universalpulverizer, is used after 50 meshes excessively；
D, adhesive and sulfur dioxide releasing agent are proportionally uniformly mixed, form mixture；
E, the mixture that will be prepared in step D is spread in uniform in first base material using quantitative duster, then covers upper second
Substrate obtains the fresh-keeping laminates 3 of sulfur dioxide under heating (80 ~ 90 DEG C), pressurization.
In the laminates 3 of preparation, the mixture of adhesive and sulfur dioxide releasing agent is uniformly distributed first base material and second
Between substrate, first base material and the second substrate are held tightly together under adhesive effect by heating pressurization, sulfur dioxide
Releasing agent is fitted closely by heating pressurization with adhesive.
Embodiment 4
The composition of laminates 4 are as follows:
First base material: breathable polyethylene film, 28g/ square metres；Second substrate: polyethylene film, 42g/ square metres；
Adhesive: retardation PES hot melt adhesive powder；Sulfur dioxide releasing agent: potassium metabisulfite and potassium bisulfite, mass ratio 1:1；
Adhesive and sulfur dioxide releasing agent mass ratio are 5:1, and adhesive and sulfur dioxide discharge agent composition in laminates
Additive amount is 31.0g/ square metres.
The amount of laminates sulfur dioxide releasing agent is calculated as 3g/ square metres with sulfur dioxide, and laminates mass area ratio is
101g/ square metres.
The preparation method of laminates 4:
A, the first base material described in preparation and the second substrate；
B, the adhesive described in preparation；
C, the sulfur dioxide releasing agent described in preparation, after mixing, raw material is used by crushing, after 60 meshes excessively；
D, adhesive and sulfur dioxide releasing agent are proportionally uniformly mixed, form mixture；
E, the mixture that will be prepared in step D is spread in uniform in first base material using quantitative duster, then covers upper second
Substrate obtains the fresh-keeping laminates 4 of sulfur dioxide under heating (100 ~ 120 DEG C), pressurization.
In the laminates 4 of preparation, the mixture of adhesive and sulfur dioxide releasing agent is uniformly distributed first base material and second
Between substrate, first base material and the second substrate are held tightly together under adhesive effect by heating pressurization, sulfur dioxide
Releasing agent is fitted closely by heating pressurization with adhesive.
Embodiment 5
The composition of laminates 5 are as follows:
First base material: punching PET film, 15g/ square metres；Second substrate: paper-plastic composite film, 50g/ square metres；
Adhesive: retardation PES hot melt adhesive powder；Sulfur dioxide releasing agent: sodium pyrosulfite；
Adhesive and sulfur dioxide releasing agent mass ratio are 1:2, and adhesive and sulfur dioxide discharge agent composition in laminates
Additive amount is 89.1g/ square metres.
The amount of laminates sulfur dioxide releasing agent is calculated as 40g/ square metres with sulfur dioxide, and laminates mass area ratio is
154.1g/ square metre.
The preparation method and state of laminates 5: with the preparation method of embodiment 4.
Embodiment 6
The composition of laminates 6 are as follows:
First base material: non-woven fabrics, 20g/ square metres；Second substrate: PET film, 10g/ square metres；
Adhesive: PA hot-melt adhesive powder；Sulfur dioxide releasing agent: sodium pyrosulfite；
Adhesive and sulfur dioxide releasing agent mass ratio are 1:1, and adhesive and sulfur dioxide discharge agent composition in laminates
Additive amount is 10g/ square metres.
The amount of laminates sulfur dioxide releasing agent is calculated as 3.36g/ square metres with sulfur dioxide, laminates mass area ratio
It is 40g/ square metres.
The preparation method and state of laminates 6: with the preparation method of embodiment 4.
Embodiment 7
The composition of laminates 7 are as follows:
First base material: blotting paper, 80g/ square metres；Second substrate: paper-plastic composite film, 60g/ square metres；
Adhesive: PA hot-melt adhesive powder, EVA rubber powder, retardation PES hot melt adhesive powder, three's mass ratio are 1:1:1；Sulfur dioxide releasing agent: burnt
Sodium sulfite；
Adhesive and sulfur dioxide releasing agent mass ratio are 3:1, and adhesive and sulfur dioxide discharge agent composition in laminates
Additive amount is 100g/ square metres.
The amount of laminates sulfur dioxide releasing agent is calculated as 16.8g/ square metres with sulfur dioxide, laminates mass area ratio
It is 240g/ square metres.
The preparation method and state of laminates 7: with the preparation method of embodiment 4.
Embodiment 8
The composition of laminates 8 are as follows:
First base material: blotting paper, 35g/ square metres；Second substrate: paper-plastic composite film, 40g/ square metres；
Adhesive: EVA rubber powder, retardation PES hot melt adhesive powder, the two mass ratio are 2:1；Sulfur dioxide releasing agent: it sodium pyrosulfite and helps
Agent magnesium stearate, mass ratio is 9:1 between the two.
Adhesive and sulfur dioxide releasing agent mass ratio are 2.5:1, and adhesive and sulfur dioxide releasing agent are mixed in laminates
The additive amount for closing object is 70g/ square metres.
The amount of laminates sulfur dioxide releasing agent is calculated as 12.1g/ square metres with sulfur dioxide, laminates mass area ratio
It is 145g/ square metres.
The preparation method and state of laminates 8: with the preparation method of embodiment 4.
Embodiment 9
The composition of laminates 9 are as follows:
First base material: blotting paper, 35g/ square metres；Second substrate: paper-plastic composite film, 40g/ square metres；
Adhesive: EVA rubber powder, retardation PES hot melt adhesive powder, the two mass ratio are 2:1；Sulfur dioxide releasing agent: it sodium pyrosulfite and helps
Agent stearic acid, auxiliary agent proportion are 80%；
Adhesive and sulfur dioxide releasing agent mass ratio are 1:2.5, and adhesive and sulfur dioxide discharge agent composition in laminates
Additive amount be 125g/ square metres.
The amount of laminates sulfur dioxide releasing agent is calculated as 12.0g/ square metres with sulfur dioxide, laminates mass area ratio
It is 200g/ square metres.
The preparation method and state of laminates 9: with the preparation method of embodiment 4.
Embodiment 10
The group of laminates 10 becomes.
First base material: blotting paper, 35g/ square metres；Second substrate: paper-plastic composite film, 40g/ square metres；
Adhesive: TPU rubber powder；Sulfur dioxide releasing agent: sodium pyrosulfite, sodium hydrogensulfite and auxiliary agent polyethylene wax, auxiliary agent institute
Accounting example is 40%；
Adhesive and sulfur dioxide releasing agent mass ratio are 1.5:2, and adhesive and sulfur dioxide discharge agent composition in laminates
Additive amount be 65g/ square metres.
The amount of laminates sulfur dioxide releasing agent is calculated as 15.0g/ square metres with sulfur dioxide, laminates mass area ratio
It is 140g/ square metres.
The preparation method and state of laminates 10: with the preparation method of embodiment 4.
Embodiment 11
The composition of laminates 11 are as follows:
Increase third substrate layer above the second substrate of laminates 2 in example 2, increases adhesive and sulfur dioxide release newly
Agent.
Third substrate: PET film, 15g/ square metres；
Adhesive: TPU rubber powder；Sulfur dioxide releasing agent: sodium pyrosulfite；
Between second substrate and third substrate: adhesive is 2:3, adhesive and sulfur dioxide with sulfur dioxide releasing agent mass ratio
The additive amount for discharging agent composition is 75g/ square metres, and the amount of sulfur dioxide releasing agent is calculated as 30.2g/ squares with sulfur dioxide
Rice.
The amount of sulfur dioxide releasing agent is calculated as 36.4g/ square metres with sulfur dioxide in laminates, laminates unit area matter
Amount is 227g/ square metres.
The preparation method of laminates 11:
A, the laminates 2 and third substrate described in preparation, prepare on the basis of laminates 2；
B, prepare newly-increased adhesive；
C, prepare newly-increased sulfur dioxide releasing agent, used by crushing, after 60 meshes excessively；
D, newly-increased adhesive and sulfur dioxide releasing agent are proportionally uniformly mixed, form mixture；
E, the mixture that will be prepared in step D is spread in uniform on the second substrate of laminates 2, then using quantitative duster
Third substrate in covering obtains the fresh-keeping laminates 11 of sulfur dioxide under heating (80 ~ 90 DEG C), pressurization.
In the laminates 11 of preparation, the mixture of adhesive and sulfur dioxide releasing agent is uniformly distributed the second substrate and third
Between substrate, the second substrate and third substrate are held tightly together under adhesive effect by heating pressurization, sulfur dioxide
Releasing agent is fitted closely by heating pressurization with adhesive.
Embodiment 12
The composition of laminates 12 are as follows:
Increase third substrate layer on the second substrate of 8 laminate 8 of embodiment, increases adhesive and sulfur dioxide release newly
Agent.
Third substrate: PET film, 15g/ square metres；
Adhesive: TPU rubber powder；Sulfur dioxide releasing agent: sodium pyrosulfite；
Between second substrate and third substrate: adhesive is 1:2, adhesive and sulfur dioxide with sulfur dioxide releasing agent mass ratio
The additive amount for discharging agent composition is 75g/ square metres, and the amount of sulfur dioxide releasing agent is calculated as 33.6g/ squares with sulfur dioxide
Rice.
The amount of sulfur dioxide releasing agent is calculated as 45.7g/ square metres with sulfur dioxide in laminates, laminates unit area matter
Amount is 235g/ square metres.
The preparation method and state of laminates 12: with the preparation method of embodiment 11.
Embodiment 13.
Application of the fresh-keeping laminates of sulfur dioxide in grape logistics is fresh-keeping.
By the fresh-keeping laminates of the sulfur dioxide of above-mentioned preparation, 23.5 × 35cm size is cut into, the second substrate one when use
Up.
Test process: after red grape harvesting, being classified, selected, is incorporated in the plastics transfer basket of liner fresh-keeping mat,
After 7.5kg/ baskets, opening pre-cooling 12 hours, it is put into 1 fresh-keeping laminates of sulfur dioxide, pricks sack, is refrigerated 10 days and is simulated
Refrigerated transport condition 5 days, normal-temperature shelf life 2 days.Sulfur dioxide fresh-keeping laminates 1-1,2 ~ 4,7 ~ 10 respectively handle 10 baskets of grapes, with
The grape of any processing is not done as control.
Test result: shelf life terminates, and counts grape fresh-keeping effect, and control Grape stems are withered, small part Grape stems
Mildew, fruit, which hangs a rate, 26.7%；The Grape stems of the fresh-keeping processing of laminates 1-1,2,3,7,8,9,10 of sulfur dioxide are fresh,
Without mildew, for fruit without bleaching, fruit falls a rate lower than 3.0%；The grape that the fresh-keeping laminates 4 of sulfur dioxide are handled, fruit are slightly new
It is fresh, hence it is evident that better than control, carpopodium falls rate≤5.0% without mildew, fruit.Test result shows the fresh-keeping laminates of each sulfur dioxide
Processing is fresh-keeping to red grape logistics good result.
Embodiment 14
Application of the fresh-keeping laminates of sulfur dioxide in grape cold storing and fresh-keeping.
By the fresh-keeping laminates of the sulfur dioxide of above-mentioned preparation, 23.5 × 35cm size is cut into, the second substrate court when use
On.
Test process: after red grape harvesting, being classified, selected, is incorporated in the plastics transfer basket of liner fresh-keeping mat,
After 7.5kg/ baskets, opening pre-cooling 12 hours, it is put into 1 fresh-keeping laminates of sulfur dioxide, pricks sack, observes and protects after refrigeration 90 days
Fresh effect.The fresh-keeping laminates 5,11,12 of sulfur dioxide respectively handle 20 baskets of grapes, not cook the grape of any processing as control.
Test result: 90 days statistics grape fresh-keeping effects of refrigeration, discovery control Grape stems are withered, 50% or more fruit ear is opened
Beginning mildew, fruit, which hangs a rate, 18.7%；The Grape stems that the fresh-keeping laminates 5,11,12 of sulfur dioxide are handled are fresh, no mildew,
Fruit falls a rate lower than 3.0%, and fresh-keeping effect is substantially better than control, has individual fruits to occur outside bleaching in the processing of laminates 5, layer
It closes object 11,12 and does not find fruit bleaching phenomenon.Test result shows the fresh-keeping laminates processing of each sulfur dioxide to red grape object
Flowing fresh-keeping has good result.
Embodiment 15
Application of the fresh-keeping laminates of sulfur dioxide in sweet potato is fresh-keeping.
By the fresh-keeping laminates of the sulfur dioxide of preparation, cut into 25 × 55cm size, when use first base material one facing towards
Fruit.
Test process: sweet potato harvesting after, be classified, select after be put into sweet potato storage cellar in, in thermophilic high humidity
It is lower to be hurt in advance, after the completion of pre- wound, it is cooled to normal shelf temperature.Sweet potato is packed into Polywoven Bag, 2 are put into every bag
The fresh-keeping laminates of sulfur dioxide, laminates are placed close to woven bag, and normal shelf is carried out in cellar, store 100 days statistics knots
Fruit.The fresh-keeping laminates 2,6,7 of sulfur dioxide respectively handle 10 bags of sweet potatoes, not do the sweet potato of any processing as control.
Test result: 100 days statistics sweet potato fresh-keeping effects of storage, the ratio that rotten spot occurs in discovery control sweet potato are
14.6%, there is ratio≤3.6% of rotten spot in the sweet potato that the fresh-keeping laminates 2,6,7 of sulfur dioxide are respectively handled.With to photograph
Than the sweet potato of the fresh-keeping laminates processing of sulfur dioxide has no other exceptions.Test result shows at the fresh-keeping laminates of sulfur dioxide
Reason is fresh-keeping to sweet potato good result.
Claims (10)
1. a kind of fresh-keeping laminates of sulfur dioxide include at least first base material, the second substrate, adhesive and sulfur dioxide release
The mixture of agent, described adhesive and sulfur dioxide releasing agent is uniformly distributed between first base material and the second substrate, first base material
By heating pressurization, the close adhesion under adhesive effect, sulfur dioxide releasing agent pass through heating pressurization and bonding with the second substrate
Agent fits closely；The first base material is gas permeable material；The sulfur dioxide releasing agent includes sodium pyrosulfite, pyrosulfurous acid
One or more of potassium, sodium hydrogensulfite, potassium bisulfite；Effective component is in the fresh-keeping laminates of sulfur dioxide with dioxy
Change sulphur and is calculated as 3 ~ 40g/ square metres.
2. the fresh-keeping laminates of sulfur dioxide according to claim 1, which is characterized in that the first base material is selected from nonwoven
Cloth, polyethylene breathable film, air-permeable paper, blotting paper, wood pulp paper, straw paper, perforated film；The preferred quality of first base material is
10 ~ 80g/ square metres.
3. the fresh-keeping laminates of sulfur dioxide according to claim 1, which is characterized in that second substrate is selected from poly- second
Alkene film, polypropylene film, polyvinyl chloride film, paper-plastic composite film, non-woven fabrics, polyethylene breathable film, is breathed freely at polyester film
Paper, blotting paper, wood pulp paper, straw paper, perforated film；The preferred quality of second substrate is 10 ~ 60g/ square metres.
4. the fresh-keeping laminates of sulfur dioxide according to claim 1, which is characterized in that the sulfur dioxide is fresh-keeping laminated
Object is 40 ~ 240g/ square metres.
5. the fresh-keeping laminates of sulfur dioxide according to claim 1, which is characterized in that sulfur dioxide releasing agent further includes helping
Agent, auxiliary agent is one or more of in magnesium stearate, stearic acid, polyethylene wax, and the auxiliary agent accounts for the matter of sulfur dioxide releasing agent
Amount is than being 10 ~ 80%；The sulfur dioxide releasing agent can pass through 50 meshes.
6. the fresh-keeping laminates of sulfur dioxide according to claim 1, which is characterized in that described adhesive is solid, powdery heat
The mass ratio of melten gel, described adhesive and sulfur dioxide releasing agent is 1:5 ~ 5:1.
7. the fresh-keeping laminates of sulfur dioxide according to claim 1, which is characterized in that described adhesive can pass through 50 mesh
Sieve.
8. the fresh-keeping laminates of sulfur dioxide according to claim 1, which is characterized in that the upper layer of second substrate also
There can be third substrate, adhesive and sulfur dioxide releasing agent are uniformly distributed between the second substrate and third substrate, the second substrate
Layer and third substrate layer by heating pressurization adhesive effect under close adhesion, sulfur dioxide releasing agent by heating pressurization with
Adhesive fits closely；It is multiple that third substrate is selected from polyethylene film, polyester film, polypropylene film, polyvinyl chloride film, paper
Close film；The shared quality of the third substrate is 6 ~ 60g/ square metres.
9. the preparation method of the fresh-keeping laminates of described in any item sulfur dioxide according to claim 1 ~ 8, comprising the following steps:
A, the first base material described in preparation and the second substrate；
B, the adhesive described in preparation is crushed or is sieved, and adhesive is made to cross 50 meshes；
C, the sulfur dioxide releasing agent described in preparation, raw material meet fineness requirement by crushing or being sieved；
D, adhesive and sulfur dioxide releasing agent are proportionally uniformly mixed, form mixture；
E, the mixture that will be prepared in step D is spread in uniform on first base material or the second substrate, then covers another base
Material obtains the fresh-keeping laminates of sulfur dioxide under heating, pressurization.
10. application of the fresh-keeping laminates of described in any item sulfur dioxide in preserving fruit and vegetable utilizing according to claim 1 ~ 8, described
Fruits and vegetables include grape, longan, lichee, cherry, sweet potato.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910643501.4A CN110447710A (en) | 2019-07-17 | 2019-07-17 | A kind of fresh-keeping laminates of sulfur dioxide, preparation method and application |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910643501.4A CN110447710A (en) | 2019-07-17 | 2019-07-17 | A kind of fresh-keeping laminates of sulfur dioxide, preparation method and application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111493139A (en) * | 2020-05-09 | 2020-08-07 | 河南汇缘农业科技发展有限公司 | Multifunctional freshness protection package and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104621241A (en) * | 2013-11-15 | 2015-05-20 | 山东营养源食品科技有限公司 | Preservative paper for grape and production method thereof |
| CN108338212A (en) * | 2018-02-05 | 2018-07-31 | 乌鲁木齐市格瑞德保鲜科技有限公司 | A kind of fresh-keeping laminates and the preparation method and application thereof |
-
2019
- 2019-07-17 CN CN201910643501.4A patent/CN110447710A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104621241A (en) * | 2013-11-15 | 2015-05-20 | 山东营养源食品科技有限公司 | Preservative paper for grape and production method thereof |
| CN108338212A (en) * | 2018-02-05 | 2018-07-31 | 乌鲁木齐市格瑞德保鲜科技有限公司 | A kind of fresh-keeping laminates and the preparation method and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111493139A (en) * | 2020-05-09 | 2020-08-07 | 河南汇缘农业科技发展有限公司 | Multifunctional freshness protection package and preparation process thereof |
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