CN107839326A - Anti-mildew fresh-keeping corrugated board and preparation method thereof - Google Patents

Anti-mildew fresh-keeping corrugated board and preparation method thereof Download PDF

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Publication number
CN107839326A
CN107839326A CN201711047144.2A CN201711047144A CN107839326A CN 107839326 A CN107839326 A CN 107839326A CN 201711047144 A CN201711047144 A CN 201711047144A CN 107839326 A CN107839326 A CN 107839326A
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China
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fresh
keeping
corrugated board
corrugation
adsorbent
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CN107839326B (en
Inventor
余赞
钟文
张勇军
田璐
韦雪雪
罗臻
杜建军
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Changde Deyuan Investment Promotion Co ltd
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Changde Jinde New Material Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00Layered products comprising a layer of paper or cardboard
    • B32B29/002Layered 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
    • B32B29/005Layered 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
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23BPRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00Preservation or chemical ripening of fruit or vegetables
    • A23B7/14Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
    • A23B7/144Preserving 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
    • A23B7/152Preserving 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00Layered products comprising a layer of paper or cardboard
    • B32B29/08Corrugated paper or cardboard
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00Layers arrangement
    • B32B2250/26All layers being made of paper or paperboard
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/12Coating on the layer surface on paper layer

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to a kind of anti-mildew fresh-keeping corrugated board and preparation method thereof, the anti-mildew fresh-keeping corrugated board includes paper, corrugating medium and corrugation facial tissue in the corrugation that stacks gradually, the one side of corrugating medium paper in the corrugation is provided with fungus resistant coating, the corrugating medium is provided with fresh-keeping coating close to the one side of the corrugation facial tissue, the fresh-keeping coating is made up of the hollow porous polymer microsphere for being loaded with adsorbent, the adsorbent includes potassium permanganate, and the adsorbent is at least partly carried on the inside of the hollow porous polymer microsphere.The fungus resistant coating of the anti-mildew fresh-keeping corrugated board can suppress to pack the growth of interior mould, in the case where fruits and vegetables are without preceding processing, generation is not easy to go mouldy, fresh-keeping coating can more efficiently remove ethene, the respiration of fruits and vegetables is not influenceed simultaneously, therefore preservation effect is improved, extends preservation duration.

Description

Anti-mildew fresh-keeping corrugated board and preparation method thereof
Technical field
The present invention relates to anti-mildew fresh-keeping technical field, more particularly to a kind of anti-mildew fresh-keeping corrugated board and its preparation side Method.
Background technology
Fresh fruit of vegetables be it is daily must vitamin, mineral matter and dietary fiber important sources, have unique shape, Color.Fruits and vegetables tissue water content is high, and tissue is tender, but perishable rotten, not shelf-stable, adopt the rear Yishui River and lose it is fresh, so as to Cause quality to reduce, or even lose commodity value and nutritive value.Fruit and vegetable demand is to be only second to the agriculture of grain in the world Product, by years development, China has turned into the fruit and vegetable food producing country of maximum in the world, and germ plasm resource is enriched, cultivation history It is long, it is the cradle of a variety of fruits and vegetables in the world.Postharvest fruit and vegetable preservation and freshness is then the continuity of agricultural production, keeps fruits and vegetables quality Be one of important goal that people pursue with freshness, must be solved the problems, such as in fruit vegetables storing, transport, the process of circulation.
In family life, supermarket sales field, hotel and industrial food packaging applications, widely used corrugated board The packed and transported of food is carried out, there is preferable physical buffer protecting effect.But in general corrugated board is for the guarantor of fruits and vegetables Tibetan effect is poor, and the preservation time is shorter.
The content of the invention
Based on this, it is necessary to provide the anti-mildew fresh-keeping corrugation that a kind of preservation effect to fruits and vegetables is preferable, the preservation time is longer Cardboard.
A kind of anti-mildew fresh-keeping corrugated board, including paper, corrugating medium and corrugation facial tissue in the corrugation stacked gradually, described watt The one side of stupefied core paper paper in the corrugation is provided with fungus resistant coating, and the corrugating medium sets close to the one side of the corrugation facial tissue There is fresh-keeping coating, the fresh-keeping coating is made up of the hollow porous polymer microsphere for being loaded with adsorbent, and the adsorbent includes Potassium permanganate, the adsorbent are at least partly carried on the inside of the hollow porous polymer microsphere.
In one of the embodiments, the adsorbent also includes montmorillonite, activated carbon, chrome green and methyl ring third Alkene.
In one of the embodiments, in the adsorbent, the potassium permanganate, the methyl cyclopropene, three oxygen The mass percent for changing two chromium, the activated carbon and the montmorillonite is respectively 55%~65%, 20%~30%, 5%~ 10%th, 1%~3% and 1%~3%.
In one of the embodiments, the one side of the corrugation facial tissue away from the corrugating medium is provided with decorative layer.
In one of the embodiments, the fungus resistant coating includes the component of following mass percent:70%~90% inhales Water-resin and 10%~30% mould inhibitor.
In one of the embodiments, the water-absorbing resin be selected from polyurethane, acrylic acid esters co-polymer, polyvinyl alcohol, One kind in ethylene-vinyl acetate analog copolymer, polyvinyl acetate copolymer, epoxy resin, polyester and its derivative or It is a variety of.
In one of the embodiments, the water-absorbing resin includes the component of following mass percent:10%~15% is poly- Vinyl alcohol and 85%~90% acrylic acid esters co-polymer.
In one of the embodiments, the acrylic acid esters co-polymer be selected from methyl methacrylate-ethyl acrylate- Butyl acrylate copolymer, methyl methacrylate-butyl acrylate-acrylic copolymer, methyl methacrylate-acrylic acid One or more in butyl ester-acrylic acid-N hydroxymethyl acrylamide copolymer.
In one of the embodiments, the polyvinyl alcohol is selected from polyvinyl alcohol 1788, polyvinyl alcohol 2088 and polyethylene One or more in alcohol 2488.
Present invention also offers a kind of preparation method of above-mentioned anti-mildew fresh-keeping corrugated board, comprise the following steps:
The fungus resistant coating is formed in the one side of the corrugating medium;
In the ethanol solution of the hollow porous polymer microsphere of coated on one side of the corrugating medium away from the fungus resistant coating, After the slurry that coated on one side of the corrugating medium away from the fungus resistant coating is mixed to get by the adsorbent and water, drying Form the fresh-keeping coating;
By paper, corrugating medium and the corrugation facial tissue with the fungus resistant coating and the fresh-keeping coating in the corrugation Fixation is stacked gradually, obtains the anti-mildew fresh-keeping corrugated board.
Ethene is a Plant Hormone, and can accumulate gradually release in the development of the gardening plants such as fruit vegetable, when release When ethene reaches a certain amount of around fruits and vegetables, will accelerate fruit and vegetable it is ripe with it is rotten, reduce the commodity value of fruits and vegetables. In fruit vegetables storing environment, ethene can also change carbon dioxide and cause fruits and vegetables metabolic disorder to the effect of fruits and vegetables.Therefore it is traditional Corrugated board can not be effectively reduced the ethylene concentration around fruits and vegetables, cause ethylene concentration to gradually step up, and accelerate the corruption of fruits and vegetables Rotten speed, have impact on fresh-keeping effect, shorten fresh-keeping duration.The present invention anti-mildew fresh-keeping corrugated board when packing fruits and vegetables, watt Stupefied core paper can provide physical buffer protective effect, and the fungus resistant coating and can on its surface enough suppresses to pack the growth of interior mould, In the case that fruits and vegetables are without pre-treatment, it are not easy to generation and go mouldy, fruits and vegetables then can be by corrugation because of ethene caused by respiration Potassium permanganate in the fresh-keeping coating on core paper surface removes.And because potassium permanganate is contained in hollow porous polymer microsphere, Walked with higher specific surface area, during the fresh-keeping coating of contact ethylene in substantial amounts of microballoon be able to it is fully anti-with potassium permanganate Should, reaction efficiency and raw material availability are improved, can more efficiently remove ethene, so that ethylene concentration maintains very low water It is flat, while the respiration of fruits and vegetables is not influenceed, therefore preservation effect is improved, extend preservation duration.
Secondly, methyl cyclopropene, chrome green, activated carbon and montmorillonite are added in adsorbent, and it is each by optimizing The ratio of component further improves fresh-keeping effect.Methyl cyclopropene can be by competing ethylene receptor and then ethene suppressing with ethene Synthesis and physiological action performance, add chrome green can then have with the oxidation Decomposition of catalysed promoted ethene, activated carbon Outstanding physical absorption performance, montmorillonite have unique one-dimensional layered nano-structure, and it is born by the surface band of nano thickness The silicate lamella of electricity, is packed together the earthy mineral of composition by the electrostatic interaction of interlayer, the crystalline substance in its crystal structure Born of the same parents are made up of one layer of alumina octahedral of folder among two layers of silicon-oxy tetrahedron, have very strong adsorption capacity and good dispersiveness Energy.Each component coordinated under special ratios, so as to can be further assured that the concentration of ethene is kept low, extend and protect Fresh duration.
Further, the particular combination of the polyhydroxylated polymer of fungus resistant coating optimization has very strong water imbibition, is steamed in water Gas can be adsorbed after being in contact with it, and after finite concentration is reached, because the reason for concentration difference, the back-diffusion into packaging, energy Enough effective moisture losses for suppressing fruits and vegetables, improve fruits and vegetables preservation quality.
Embodiment
To enable objects, features and advantages of the present invention more obvious understandable, below to the specific embodiment party of the present invention Formula is described in detail.Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still this hair Bright to be implemented with being much different from other modes described here, those skilled in the art can be without prejudice in the present invention Similar improvement is done in the case of culvert, therefore the present invention is not limited to the specific embodiments disclosed below.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases The arbitrary and all combination of the Listed Items of pass.
The anti-mildew fresh-keeping corrugated board of an embodiment of the present invention, including paper in the corrugation stacked gradually, corrugating medium and Corrugation facial tissue, the one side of corrugating medium's paper in corrugation are provided with fungus resistant coating, and corrugating medium sets close to the one side of corrugation facial tissue There is fresh-keeping coating, fresh-keeping coating is made up of the hollow porous polymer microsphere for being loaded with adsorbent, and adsorbent includes potassium permanganate, Adsorbent is at least partly carried on the inside of hollow porous polymer microsphere.
Further, adsorbent also includes montmorillonite, activated carbon, chrome green and methyl cyclopropene.
Specifically, in adsorbent, potassium permanganate, methyl cyclopropene, chrome green, activated carbon and the quality of montmorillonite hundred Divide ratio respectively 55%~65%, 20%~30%, 5%~10%, 1%~3% and 1%~3%.
Alternatively, one side of the corrugation facial tissue away from corrugating medium be provided with decorative layer, such as the information such as word, pattern in order to Identification.
In one embodiment, fungus resistant coating includes the component of following mass percent:The He of water-absorbing resin 70%~90% Mould inhibitor 10%~30%.Specifically, water-absorbing resin is selected from polyurethane, acrylic acid esters co-polymer, polyvinyl alcohol, ethene-vinegar One or more in vinyl acetate analog copolymer, polyvinyl acetate copolymer, epoxy resin, polyester and its derivative.It is excellent Selection of land, water-absorbing resin include the component of following mass percent:10%~15% polyvinyl alcohol and 85%~90% acrylate Analog copolymer.
Further, acrylic acid esters co-polymer is selected from methyl methacrylate-ethyl acrylate-acrylic acid butyl ester copolymerization Thing, methyl methacrylate-butyl acrylate-acrylic copolymer, methyl methacrylate-butyl acrylate-acrylic acid-N- One or more in hydroxymethyl acrylamide copolymer.Alternatively, polyvinyl alcohol is selected from polyvinyl alcohol 1788, polyvinyl alcohol 2088 and polyvinyl alcohol 2488 in one or more.Preferably, water-absorbing resin includes the component of following mass percent:5% ~8% polyvinyl alcohol 1788,5%~7% polyvinyl alcohol 2488 and 85%~90% methyl methacrylate-butyl acrylate- Acrylic copolymer, has a more preferable Water-saving effect, and coordinates overall performance more preferably with mould inhibitor, fresh-keeping coating etc..
In one embodiment, mould inhibitor is selected from sodium Diacetate, potassium sorbate, sodium sorbate, potassium citrate, citric acid Sodium, calcium propionate, sodium ascorbate, potassium ascorbate, sodium salicylate, trichlamide, dodecyl alanine, sodium isoascorbate, Kathon CG, p-hydroxybenzoate and bacteriolyze it is mould in one or more.Preferably, mould inhibitor includes the group of following mass percent Point:22%~26% sodium ascorbate, 22%~26% trichlamide and 48%~56% Kathon CG, anti-mold effect are preferable.
In one embodiment, the thickness of fungus resistant coating is 2 μm~5 μm, and the thickness of fresh-keeping coating is 2 μm~5 μm.It is preferred that Ground, the aperture of hollow porous polymer microsphere are more than 50nm.Alternatively, the material of hollow porous polymer microsphere is acrylate Analog copolymer.
The preparation method of the above-mentioned anti-mildew fresh-keeping corrugated board of an embodiment of the present invention, comprises the following steps S1~S3:
S1, the one side formation fungus resistant coating in corrugating medium.
Specifically, each component raw material and water mixed pulp are weighed by said ratio and obtains mildew resistant paint, be then coated on watt The one side of stupefied core paper after drying to form fungus resistant coating.
S2, the ethanol solution in the hollow porous polymer microsphere of coated on one side of the corrugating medium away from fungus resistant coating, watt The slurry that coated on one side of the stupefied core paper away from fungus resistant coating is mixed to get by adsorbent and water, fresh-keeping coating is formed after drying.
In this way, fresh-keeping coating is made up of the hollow porous polymer microsphere for being loaded with adsorbent, and adsorbent is at least partly It is carried on the inside of hollow porous polymer microsphere.
Preferably, the mass percent concentration of adsorbent is 0.2%~1% in slurry, and excessive concentration easily causes to adsorb Agent is difficult to enter sufficiently into hollow porous polymer microsphere, and the too low then adsorption effect of concentration reduces.
S3, by paper in corrugation, there is fungus resistant coating and the corrugating medium of fresh-keeping coating and corrugation facial tissue to stack gradually fixation, Obtain anti-mildew fresh-keeping corrugated board.
In one embodiment, above-mentioned drying specifically includes following steps:Dried 5~6 hours under the conditions of 15~25 DEG C, Then dried 1~3 hour under the conditions of 50 DEG C~80 DEG C.Slowly dried in this way, being first put into 20 DEG C or so of environment, with microballoon The evaporation of interior moisture, the water outside microballoon can carry partial adsorbates agent again and enter microballoon, then quick under higher temperature The moisture in microballoon is fully dried, avoiding directly drying at high temperature causes the too fast evaporation of moisture and more adsorbents also stop On the surface of microballoon.
Ethene is a Plant Hormone, and can accumulate gradually release in the development of the gardening plants such as fruit vegetable, when release When ethene reaches a certain amount of around fruits and vegetables, will accelerate fruit and vegetable it is ripe with it is rotten, reduce the commodity value of fruits and vegetables. In fruit vegetables storing environment, ethene can also change carbon dioxide and cause fruits and vegetables metabolic disorder to the effect of fruits and vegetables.Therefore it is traditional Corrugated board can not be effectively reduced the ethylene concentration around fruits and vegetables, cause ethylene concentration to gradually step up, and accelerate the corruption of fruits and vegetables Rotten speed, have impact on fresh-keeping effect, shorten fresh-keeping duration.The present invention anti-mildew fresh-keeping corrugated board when packing fruits and vegetables, watt Stupefied core paper can provide physical buffer protective effect, and the fungus resistant coating and can on its surface enough suppresses to pack the growth of interior mould, In the case that fruits and vegetables are without pre-treatment, it are not easy to generation and go mouldy, fruits and vegetables then can be by corrugation because of ethene caused by respiration Potassium permanganate in the fresh-keeping coating on core paper surface removes.And because potassium permanganate is contained in hollow porous polymer microsphere, Walked with higher specific surface area, during the fresh-keeping coating of contact ethylene in substantial amounts of microballoon be able to it is fully anti-with potassium permanganate Should, reaction efficiency and raw material availability are improved, can more efficiently remove ethene, so that ethylene concentration maintains very low water It is flat, while the respiration of fruits and vegetables is not influenceed, therefore preservation effect is improved, extend preservation duration.
Secondly, methyl cyclopropene, chrome green, activated carbon and montmorillonite are added in adsorbent, and it is each by optimizing The ratio of component further improves fresh-keeping effect.Methyl cyclopropene can be by competing ethylene receptor and then ethene suppressing with ethene Synthesis and physiological action performance, add chrome green can then have with the oxidation Decomposition of catalysed promoted ethene, activated carbon Outstanding physical absorption performance, montmorillonite have unique one-dimensional layered nano-structure, and it is born by the surface band of nano thickness The silicate lamella of electricity, is packed together the earthy mineral of composition by the electrostatic interaction of interlayer, the crystalline substance in its crystal structure Born of the same parents are made up of one layer of alumina octahedral of folder among two layers of silicon-oxy tetrahedron, have very strong adsorption capacity and good dispersiveness Energy.Each component coordinated under special ratios, so as to can be further assured that the concentration of ethene is kept low, extend and protect Fresh duration.
Further, the particular combination of the polyhydroxylated polymer of fungus resistant coating optimization has very strong water imbibition, is steamed in water Gas can be adsorbed after being in contact with it, and after finite concentration is reached, because the reason for concentration difference, the back-diffusion into packaging, energy Enough effective moisture losses for suppressing fruits and vegetables, improve fruits and vegetables preservation quality.
It is specific embodiment below.
Embodiment 1
In the coated on one side mildew resistant paint of corrugating medium to form fungus resistant coating, fungus resistant coating includes 78% water-absorbing resin With 22% mould inhibitor, wherein water-absorbing resin is by 7% polyvinyl alcohol 1788,6% polyvinyl alcohol 2488 and 87% methacrylic acid Methyl esters-butyl acrylate-acrylic acid copolymer composition, mould inhibitor is by 25% sodium ascorbate, 25% trichlamide and 50% card Pine composition.
It is hollow porous in the ethanol solution of the hollow porous polymer microsphere of coated on one side of the corrugating medium away from fungus resistant coating The material of polymer microballoon is acrylic acid esters co-polymer.Each component, which is weighed, according to following mass percent obtains adsorbent:It is high Potassium manganate 62%, methyl cyclopropene 27%, chrome green 8%, activated carbon 2% and montmorillonite 1%.Adsorbent is mixed with water Obtaining slurry, the mass percent concentration of adsorbent is 0.5%, in coated on one side slurry of the corrugating medium away from fungus resistant coating, It is then placed in 20 DEG C of environment slowly dry 5 hours, places into baking oven and form fresh-keeping coating within dry 2 hours in 60 DEG C.Most Paper, corrugating medium and corrugation facial tissue in corrugation are stacked gradually into fixation afterwards, produce anti-mildew fresh-keeping corrugated board, wherein fungus resistant coating Thickness be 3 μm, the thickness of fresh-keeping coating is 3 μm.
Embodiment 2
In the coated on one side mildew resistant paint of corrugating medium to form fungus resistant coating, fungus resistant coating includes 78% water-absorbing resin With 22% mould inhibitor, wherein water-absorbing resin is by 7% polyvinyl alcohol 1788,6% polyvinyl alcohol 2488 and 87% methacrylic acid Methyl esters-butyl acrylate-acrylic acid copolymer composition, mould inhibitor is by 25% sodium ascorbate, 25% trichlamide and 50% card Pine composition.
It is hollow porous in the ethanol solution of the hollow porous polymer microsphere of coated on one side of the corrugating medium away from fungus resistant coating The material of polymer microballoon is acrylic acid esters co-polymer.Potassium permanganate is taken to be mixed to get slurry, the quality of potassium permanganate with water Percent concentration is 0.5%, in coated on one side slurry of the corrugating medium away from fungus resistant coating, is then placed in 20 DEG C of environment and carries out Slowly dry 5 hours, place into baking oven and form fresh-keeping coating within dry 2 hours in 60 DEG C.Finally by paper in corrugation, corrugating medium and Corrugation facial tissue stacks gradually fixation, produces anti-mildew fresh-keeping corrugated board, and the wherein thickness of fungus resistant coating is 3 μm, fresh-keeping coating Thickness is 3 μm.
Embodiment 3
In the coated on one side mildew resistant paint of corrugating medium to form fungus resistant coating, fungus resistant coating includes 78% water-absorbing resin With 22% mould inhibitor, wherein water-absorbing resin is by 7% polyvinyl alcohol 1788,6% polyvinyl alcohol 2488 and 87% methacrylic acid Methyl esters-butyl acrylate-acrylic acid copolymer composition, mould inhibitor is by 25% sodium ascorbate, 25% trichlamide and 50% card Pine composition.
It is hollow porous in the ethanol solution of the hollow porous polymer microsphere of coated on one side of the corrugating medium away from fungus resistant coating The material of polymer microballoon is acrylic acid esters co-polymer.Each component, which is weighed, according to following mass percent obtains adsorbent:It is high Potassium manganate 30%, methyl cyclopropene 35%, chrome green 20%, activated carbon 8% and montmorillonite 7%.Adsorbent and water are mixed Conjunction obtains slurry, and the mass percent concentration of adsorbent is 0.5%, in coated on one side slurry of the corrugating medium away from fungus resistant coating Material, it is then placed in 20 DEG C of environment and slowly dry 5 hours, place into baking oven and form fresh-keeping coating within dry 2 hours in 60 DEG C. Paper, corrugating medium and corrugation facial tissue in corrugation are finally stacked gradually into fixation, produce anti-mildew fresh-keeping corrugated board, wherein mould proof painting The thickness of layer is 3 μm, and the thickness of fresh-keeping coating is 3 μm.
Embodiment 4
In the coated on one side mildew resistant paint of corrugating medium to form fungus resistant coating, fungus resistant coating includes 78% water-absorbing resin With 22% mould inhibitor, wherein water-absorbing resin is by 13% polyvinyl alcohol 1788 and 87% ethylene-vinyl acetate analog copolymer group Into mould inhibitor is made up of 25% sodium ascorbate, 25% trichlamide and 50% Kathon CG.
It is hollow porous in the ethanol solution of the hollow porous polymer microsphere of coated on one side of the corrugating medium away from fungus resistant coating The material of polymer microballoon is acrylic acid esters co-polymer.Each component, which is weighed, according to following mass percent obtains adsorbent:It is high Potassium manganate 62%, methyl cyclopropene 27%, chrome green 8%, activated carbon 2% and montmorillonite 1%.Adsorbent is mixed with water Obtaining slurry, the mass percent concentration of adsorbent is 0.5%, in coated on one side slurry of the corrugating medium away from fungus resistant coating, It is then placed in 20 DEG C of environment slowly dry 5 hours, places into baking oven and form fresh-keeping coating within dry 2 hours in 60 DEG C.Most Paper, corrugating medium and corrugation facial tissue in corrugation are stacked gradually into fixation afterwards, produce anti-mildew fresh-keeping corrugated board, wherein fungus resistant coating Thickness be 3 μm, the thickness of fresh-keeping coating is 3 μm.
Comparative example 1
In the coated on one side mildew resistant paint of corrugating medium to form fungus resistant coating, fungus resistant coating includes 78% water-absorbing resin With 22% mould inhibitor, wherein water-absorbing resin is by 7% polyvinyl alcohol 1788,6% polyvinyl alcohol 2488 and 87% methacrylic acid Methyl esters-butyl acrylate-acrylic acid copolymer composition, mould inhibitor is by 25% sodium ascorbate, 25% trichlamide and 50% card Pine composition.
In coated on one side gelatine microsphere of the corrugating medium away from fungus resistant coating, potassium permanganate is then taken to be mixed to get slurry with water Material, the mass percent concentration of potassium permanganate are 0.5%, in coated on one side slurry of the corrugating medium away from fungus resistant coating, then It is put into 20 DEG C of environment slowly dry 5 hours, places into baking oven and form fresh-keeping coating within dry 2 hours in 60 DEG C.Then will Paper, corrugating medium and corrugation facial tissue stack gradually fixation in corrugation, produce corrugated board, and the wherein thickness of fungus resistant coating is 3 μm, The thickness of fresh-keeping coating is 3 μm.
Comparative example 2
In the coated on one side mildew resistant paint of corrugating medium to form fungus resistant coating, fungus resistant coating includes 78% water-absorbing resin With 22% mould inhibitor, wherein water-absorbing resin is by 7% polyvinyl alcohol 1788,6% polyvinyl alcohol 2488 and 87% methacrylic acid Methyl esters-butyl acrylate-acrylic acid copolymer composition, mould inhibitor is by 25% sodium ascorbate, 25% trichlamide and 50% card Pine composition.
Each component, which is weighed, according to following mass percent obtains adsorbent:Potassium permanganate 62%, methyl cyclopropene 27%, three Aoxidize two chromium 8%, activated carbon 2% and montmorillonite 1%.Adsorbent and water are mixed to get slurry, the mass percent of adsorbent Concentration is 0.5%, in coated on one side slurry of the corrugating medium away from fungus resistant coating, is then placed in 20 DEG C of environment and is slowly done Dry 5 hours, place into baking oven and form fresh-keeping coating within dry 2 hours in 60 DEG C.Then by paper, corrugating medium and corrugation face in corrugation Paper stacks gradually fixation, produces corrugated board, and the wherein thickness of fungus resistant coating is 3 μm, and the thickness of fresh-keeping coating is 3 μm.
Comparative example 3
In the coated on one side mildew resistant paint of corrugating medium to form fungus resistant coating, fungus resistant coating includes 78% water-absorbing resin With 22% mould inhibitor, wherein water-absorbing resin is by 7% polyvinyl alcohol 1788,6% polyvinyl alcohol 2488 and 87% methacrylic acid Methyl esters-butyl acrylate-acrylic acid copolymer composition, mould inhibitor is by 25% sodium ascorbate, 25% trichlamide and 50% card Pine composition.
It is hollow porous in the ethanol solution of the hollow porous polymer microsphere of coated on one side of the corrugating medium away from fungus resistant coating The material of polymer microballoon is acrylic acid esters co-polymer.Each component, which is weighed, according to following mass percent obtains adsorbent:First Cyclopropene 50%, chrome green 40%, activated carbon 8% and montmorillonite 2%.Adsorbent and water are mixed to get slurry, inhaled Attached dose of mass percent concentration is 0.5%, in coated on one side slurry of the corrugating medium away from fungus resistant coating, is then placed in 20 DEG C Environment slowly dry 5 hours, place into baking oven and dried in 60 DEG C and form fresh-keeping coating in 2 hours.Finally by paper in corrugation, Corrugating medium and corrugation facial tissue stack gradually fixation, produce corrugated board, and the wherein thickness of fungus resistant coating is 3 μm, fresh-keeping coating Thickness be 3 μm.
The uniform in size, no disease and pests harm of purchase is selected in the market, is had no mechanical damage and maturity similar in peach, make respectively The corrugated board being prepared with embodiment 1~4 and comparative example 1~3 respectively packs 10 peaches, is stored under room temperature condition.7 days Afterwards, the hardness average value of the peach of each embodiment and comparative example is detected using GY-B types fruit hardness meter.Storage is surveyed after 12 days The average rotting rate of the peach of fixed each embodiment and comparative example, according to the mass percent of peach decayed portion, rotting rate is divided into 0 ~5 grades, 0 grade be without rot, 1 grade be less than 20%, 2 grades be 20%~40%, 3 grades be 40%~60%, 4 grades be 60%~ 80%, 5 grades are 80%~100%.In addition, measure storage 12 days after each embodiment and comparative example storage environment in ethene it is dense Degree, and the weight-loss ratio of the peach of each embodiment and comparative example.
Hardness is one of important indicator for weighing peach fruit storage property and quality, and its size can characterize fruit substantially Edibility, it is however generally that, high rigidity is advantageous to store.The flavor of acid content and fruit is closely related, is to influence taste of fruit product The important indicator of matter.Testing result is as shown in table 1, it can be seen that compared with comparative example 1~3, is carried out the mould proof guarantor of example 1~4 The peach of fresh corrugated board packaging still has higher hardness after 7 days, and rotting rate is very low after 12 days, and in storage environment Ethylene concentration it is considerably lower, weight-loss ratio is relatively low, and moisture loss is less, wherein the best results of embodiment 1.The present invention's is mould proof The fungus resistant coating of preservative corrugated cardboard can suppress to pack the growth of interior mould, in the case where fruits and vegetables are without preceding processing, It is not likely to produce and goes mouldy, fresh-keeping coating can more efficiently removes ethene, while not influence the respiration of fruits and vegetables, therefore improve guarantor Effect is hidden, extends preservation duration.
Table 1
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (10)

1. a kind of anti-mildew fresh-keeping corrugated board, it is characterised in that including paper, corrugating medium and corrugation face in the corrugation that stacks gradually Paper, the one side of corrugating medium paper in the corrugation are provided with fungus resistant coating, and the corrugating medium is close to the corrugation face The one side of paper is provided with fresh-keeping coating, and the fresh-keeping coating is made up of the hollow porous polymer microsphere for being loaded with adsorbent, described Adsorbent includes potassium permanganate, and the adsorbent is at least partly carried on the inside of the hollow porous polymer microsphere.
2. anti-mildew fresh-keeping corrugated board according to claim 1, it is characterised in that the adsorbent also include montmorillonite, Activated carbon, chrome green and methyl cyclopropene.
3. anti-mildew fresh-keeping corrugated board according to claim 2, it is characterised in that in the adsorbent, the permanganic acid Potassium, the methyl cyclopropene, the chrome green, the activated carbon and the mass percent of the montmorillonite are respectively 55% ~65%, 20%~30%, 5%~10%, 1%~3% and 1%~3%.
4. anti-mildew fresh-keeping corrugated board according to claim 1, it is characterised in that the corrugation facial tissue is away from the corrugation The one side of core paper is provided with decorative layer.
5. anti-mildew fresh-keeping corrugated board according to claim 1, it is characterised in that the fungus resistant coating includes following quality The component of percentage:70%~90% water-absorbing resin and 10%~30% mould inhibitor.
6. anti-mildew fresh-keeping corrugated board according to claim 5, it is characterised in that the water-absorbing resin be selected from polyurethane, Acrylic acid esters co-polymer, polyvinyl alcohol, ethylene-vinyl acetate analog copolymer, polyvinyl acetate copolymer, asphalt mixtures modified by epoxy resin One or more in fat, polyester and its derivative.
7. anti-mildew fresh-keeping corrugated board according to claim 6, it is characterised in that the water-absorbing resin includes following quality The component of percentage:10%~15% polyvinyl alcohol and 85%~90% acrylic acid esters co-polymer.
8. anti-mildew fresh-keeping corrugated board according to claim 7, it is characterised in that the acrylic acid esters co-polymer is selected from Methyl methacrylate-ethyl acrylate-acrylic acid acrylate copolymer, methyl methacrylate-butyl acrylate-acrylic acid are common One or more in polymers, methyl methacrylate-butyl acrylate-acrylic acid-N hydroxymethyl acrylamide copolymer.
9. anti-mildew fresh-keeping corrugated board according to claim 7, it is characterised in that the polyvinyl alcohol is selected from polyvinyl alcohol 1788th, the one or more in polyvinyl alcohol 2088 and polyvinyl alcohol 2488.
A kind of 10. preparation method of the anti-mildew fresh-keeping corrugated board described in any one of claim 1~9, it is characterised in that including Following steps:
The fungus resistant coating is formed in the one side of the corrugating medium;
In the ethanol solution of the hollow porous polymer microsphere of coated on one side of the corrugating medium away from the fungus resistant coating, in institute The slurry that coated on one side of the corrugating medium away from the fungus resistant coating is mixed to get by the adsorbent and water is stated, is formed after drying The fresh-keeping coating;
By paper in the corrugation, there is the fungus resistant coating and the corrugating medium of the fresh-keeping coating and the corrugation facial tissue successively Stacking is fixed, and obtains the anti-mildew fresh-keeping corrugated board.
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CN203793937U (en) * 2013-12-25 2014-08-27 山西省农业科学院农产品贮藏保鲜研究所 Preservative paper pad for fruit and vegetable storage and transportation at normal temperature
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