CN112500751A - Photocatalytic preservative coating and super-fresh paper coated with same - Google Patents
Photocatalytic preservative coating and super-fresh paper coated with same Download PDFInfo
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- CN112500751A CN112500751A CN202011178045.XA CN202011178045A CN112500751A CN 112500751 A CN112500751 A CN 112500751A CN 202011178045 A CN202011178045 A CN 202011178045A CN 112500751 A CN112500751 A CN 112500751A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/42—Applications of coated or impregnated materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
- C09D171/02—Polyalkylene oxides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/385—Oxides, hydroxides or carbonates
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/60—Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Plant Pathology (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Catalysts (AREA)
- Packages (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a photocatalytic fresh-keeping coating and super-fresh paper coated with the same, and the super-fresh paper comprises the photocatalytic fresh-keeping coating, wherein the photocatalytic fresh-keeping coating comprises 0.01-10 parts by weight of photocatalytic nano titanium dioxide particles with a coating layer on the surface, 0.001-0.2 part by weight of a slow-release ethylene inhibitor and 0.001-10 parts by weight of a binder, the coating layer is hydroxyapatite, montmorillonite or silicon dioxide, the slow-release ethylene inhibitor is a microcapsule ethylene inhibitor, the binder is one or a combination of more of acrylic resin, polyurethane resin and organic silicon resin, the super-fresh paper comprises a paper body layer, and a photocatalytic functional layer loaded with photocatalytic particles and ethylene inhibitors is arranged on at least one side surface of the paper body layer, so that a good fresh-keeping effect can be realized on packaged fruits and vegetables in a transportation process.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of preservation, in particular to the technical field of photocatalytic super-fresh paper.
[ background of the invention ]
Along with the improvement of living standard of people, the requirements of people on the appearance of fruits are also improved. Fruits such as apples, snow pears, oranges and the like are often required to be wrapped with wrapping paper, then wrapped with a foaming net and boxed during transportation. The existing fruit and vegetable packing paper is usually simple wax glossy paper, does not have a fresh-keeping function, and needs to be solved urgently.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a photocatalytic preservative coating and super-fresh paper coated with the same, which can achieve a good preservation effect on packaged fruits and vegetables in a transportation process.
In order to achieve the purpose, the invention provides a photocatalytic fresh-keeping coating, which comprises 0.01-10 parts by weight of photocatalytic nano titanium dioxide particles with coating layers on the surfaces, 0.001-0.2 part by weight of slow-release ethylene inhibitor and 0.001-10 parts by weight of binder, wherein the coating layers are hydroxyapatite, montmorillonite or silicon dioxide, the slow-release ethylene inhibitor is a microcapsule ethylene inhibitor, and the binder is one or a combination of acrylic resin, polyurethane resin and organic silicon resin.
Preferably, the modified PEO-PVA composite material further comprises a soluble polymer with the weight ratio of 0.01-0.1 part, wherein the soluble polymer is one or the combination of PEO and PVA.
Preferably, the coating material comprises 0.02 weight part of photocatalytic nano titanium dioxide particles with a coating layer on the surface, 0.002 weight part of slow release type ethylene inhibitor, 0.002 weight part of binder and 0.02 weight part of soluble polymer.
Preferably, the coating material comprises 5 parts by weight of photocatalytic nano titanium dioxide particles with a coating layer on the surface, 0.1 part by weight of slow-release ethylene inhibitor, 5 parts by weight of binder and 0.05 part by weight of soluble polymer.
Preferably, the coating material comprises 9.5 parts by weight of photocatalytic nano titanium dioxide particles with a coating layer on the surface, 0.18 part by weight of slow-release ethylene inhibitor, 9.5 parts by weight of binder and 0.09 part by weight of soluble polymer.
A super-fresh paper, which comprises a paper body layer, wherein at least one side surface of the paper body layer is provided with a photocatalytic functional layer loaded with photocatalytic particles and an ethylene inhibitor, and the photocatalytic functional layer is obtained by curing the coating material according to any one of claims 1 to 5.
Preferably, the paper body layer is made of snow pear paper.
Preferably, an adhesive strip is further arranged at the edge of one side, provided with the photocatalytic functional layer, of the paper body layer, and a release paper strip is attached to the surface of the adhesive strip.
Preferably, an inner concave portion is provided in the center of the paper body layer.
Preferably, the inner concave part is internally provided with an anti-slip elastic convex strip.
The invention has the beneficial effects that:
1. ethylene or other gases released by the respiration of the fruits and vegetables are decomposed through the photocatalysis of the photocatalytic functional layer, oxygen is consumed at the same time, the ethylene or other gases are decomposed into water and carbon dioxide, the concentration of the carbon dioxide in the package is increased, the concentration of the oxygen in the package is reduced, the self-regulation effect is realized, and the aerobic respiration of the fruits and vegetables is effectively inhibited;
2. by means of the photocatalysis of the photocatalytic functional layer, the growth and the propagation of microorganisms on the surfaces of fruits and vegetables are effectively inhibited, the probability of infecting the fruits and vegetables with bacteria and viruses is reduced, and the fresh-keeping period of the fruits and vegetables is prolonged;
3. the water generated by photocatalysis and the water generated by autonomous respiration of the fruits and vegetables can be collected, and a certain water content in the package is maintained, so that the water of the fruits and vegetables is kept, and the fruits and vegetables are prevented from being dehydrated and dried;
4. the microcapsules can be dissolved by utilizing water generated by photocatalysis and water generated by autonomous respiration of fruits and vegetables, so that the structure of the microcapsules is damaged, the ethylene inhibitor in the microcapsules is released into the bag and contacts with the fruits and vegetables, the sensitivity of the fruits and vegetables to ethylene is reduced, the maturity of the fruits and vegetables is further delayed, and the aim of prolonging the fresh-keeping period of the fruits and vegetables is fulfilled;
5. by adopting the photocatalytic nano titanium dioxide particles with the coating layers on the surfaces instead of common nano titanium dioxide particles, the problem of function reduction caused by shedding and loss of bare titanium dioxide due to photo-corrosion after long-time use is solved, organic matters are not corroded, nano particle agglomeration can be avoided, high activity is ensured, internal channels are formed at the same time, and the problem of reduction of multi-layer covering catalytic effect is solved;
6. by adding soluble polymers into the coating, the coating is contacted with water vapor and melted to form nano micropores in the using process, so that the air permeability of the coating is improved, and the fruits and vegetables are prevented from generating anaerobic respiration and further being fermented;
7. through the setting have the interior concave part of anti-skidding elasticity sand grip, the location of the fruit vegetables of being convenient for prevents the fruit vegetables at the wrapping paper internal rotation, avoids its epidermis damaged, has the viscose strip from the type paper through the setting simultaneously, can seal the opening fast after packing the fruit vegetables.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a top view of an ultra-fresh paper of the present invention;
fig. 2 is a front view of the super-bright paper of the present invention.
In the figure: 1-adhesive strip and 2-concave part.
[ detailed description ] embodiments
The first embodiment is as follows:
weighing 0.02 part by weight of photocatalytic nano titanium dioxide particles with coating layers on the surfaces, 0.002 part by weight of slow-release ethylene inhibitor, 0.002 part by weight of binder and 0.02 part by weight of soluble polymer, stirring, mixing and preparing the photocatalytic fresh-keeping coating. And then spraying the photocatalytic fresh-keeping coating on at least one side surface of the paper body layer.
Wherein the coating layer is silicon dioxide. The preparation method comprises the following steps: firstly, 100 parts of nano titanium dioxide and 300 parts of water are mixed according to the weight ratio, then the mixture is fully stirred for 10min, then 1 part of long-chain alkyl surfactant is added for mixing, the mixture is emulsified for 30min under stirring, then ethyl silicate is added, the mixture is fully stirred for 2h, and finally the mixed solution is calcined for 2h at 500 ℃ to obtain the nano titanium dioxide particles coated with silicon dioxide.
The slow release type ethylene inhibitor is a microcapsule ethylene inhibitor. The preparation method of the microcapsule ethylene inhibitor comprises the steps of weighing 2 parts of cyclodextrin and 100 parts of distilled water, heating to 30 ℃, dissolving to prepare a saturated aqueous solution of the cyclodextrin, cooling to 20 ℃, adding 0.015 part of ethylene inhibitor, stirring at a high speed for 30min at 30 ℃ to prepare a paste, and then drying in vacuum at 100 ℃ for 24 h.
The adhesive is one or a combination of acrylic resin, polyurethane resin and organic silicon resin.
The paper body layer adopts snow pear paper.
The paper body layer is equipped with one side edge department of photocatalysis functional layer and still is equipped with viscose strip 1, the surface facing of viscose strip has covered from type paper slip.
The center of the paper body layer is provided with an inner concave part 2.
The inner concave part 2 is internally provided with an anti-slip elastic raised line.
Example two:
weighing 5 parts by weight of photocatalytic nano titanium dioxide particles with coating layers on the surfaces, 0.1 part by weight of slow-release ethylene inhibitor, 5 parts by weight of binder and 0.05 part by weight of soluble polymer.
The coating layer is montmorillonite. The preparation method comprises the following steps: firstly, 0.8mL of titanium tetrachloride is added into 40mL of hydrochloric acid solution with the concentration of 1mol/L and stirred for 40min to obtain light yellow transparent titanium dioxide acid sol, then 1% of sodium montmorillonite solution (1g of montmorillonite is added into the mixed solution of 50mL of deionized water and 50mL of anhydrous ethanol and stirred for 10min) is added into 25mL of titanium dioxide acid sol and stirred for 4h at the temperature of 60 ℃, then centrifugal filtration is carried out, deionized water is used for fully washing for 3 times, and the mixture is washed until no Cl exists-(detecting by using l percent AgNO, solution), and roasting for 2 hours at 500 ℃ to obtain the nano titanium dioxide particles coated with the montmorillonite.
The other steps are the same as those of the first embodiment.
Example three:
weighing 9.5 parts by weight of photocatalytic nano titanium dioxide particles with coating layers on the surfaces, 0.18 part by weight of slow-release ethylene inhibitor, 9.5 parts by weight of binder and 0.09 part by weight of soluble polymer.
The other steps are the same as those of the first embodiment.
Example four:
the antibacterial property test of examples one to three was carried out using staphylococcus aureus, and the results are shown in table 1 below
| Sample (I) | Antibacterial rate |
| Example one | ＞99％ |
| Example two | ＞99％ |
| EXAMPLE III | ＞99％ |
Table 1 antibacterial property test results
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (10)
1. A photocatalytic fresh-keeping coating is characterized in that: the coating is hydroxyapatite, montmorillonite or silicon dioxide, the slow release type ethylene inhibitor is a microcapsule ethylene inhibitor, and the adhesive is one or a combination of acrylic resin, polyurethane resin and organic silicon resin.
2. A photocatalytic freshness-retaining paint as claimed in claim 1, characterized in that: the polymer also comprises 0.01-0.1 part by weight of soluble polymer, wherein the soluble polymer is one or a combination of two of PEO and PVA.
3. A photocatalytic freshness-retaining paint as claimed in claim 2, characterized in that: comprises 0.02 weight part of photocatalytic nano titanium dioxide particles with coating layers on the surfaces, 0.002 weight part of slow-release ethylene inhibitor, 0.002 weight part of binder and 0.02 weight part of soluble polymer.
4. A photocatalytic freshness-retaining paint as claimed in claim 2, characterized in that: the composite material comprises 5 parts by weight of photocatalytic nano titanium dioxide particles with coating layers on the surfaces, 0.1 part by weight of slow-release ethylene inhibitor, 5 parts by weight of binder and 0.05 part by weight of soluble polymer.
5. A photocatalytic freshness-retaining paint as claimed in claim 2, characterized in that: the coating comprises 9.5 parts by weight of photocatalytic nano titanium dioxide particles with coating layers on the surfaces, 0.18 part by weight of slow-release ethylene inhibitor, 9.5 parts by weight of binder and 0.09 part by weight of soluble polymer.
6. The super-fresh paper is characterized in that: the paper comprises a paper body layer, wherein at least one side surface of the paper body layer is provided with a photocatalytic functional layer loaded with photocatalytic particles and an ethylene inhibitor, and the photocatalytic functional layer is obtained by curing the coating material of any one of claims 1 to 5.
7. The super-fresh paper as set forth in claim 6, wherein: the paper body layer adopts snow pear paper.
8. The super-fresh paper as set forth in claim 7, wherein: the paper body layer is equipped with one side edge of photocatalysis functional layer and still is equipped with viscose strip (1), the surface facing of viscose strip has and has been covered from type note.
9. The super-fresh paper as set forth in claim 7, wherein: the center of the paper body layer is provided with an inner concave part (2).
10. The super-fresh paper as set forth in claim 9, wherein: the inner concave part (2) is internally provided with an anti-slip elastic raised line.
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| CN202011178045.XA CN112500751B (en) | 2020-10-29 | 2020-10-29 | Photocatalytic preservative coating and super-fresh paper coated with same |
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| CN202011178045.XA CN112500751B (en) | 2020-10-29 | 2020-10-29 | Photocatalytic preservative coating and super-fresh paper coated with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467191A (en) * | 2022-09-21 | 2022-12-13 | 珠海正业包装有限公司 | Research and development of environment-friendly anti-mildew corrugated paper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115467191A (en) * | 2022-09-21 | 2022-12-13 | 珠海正业包装有限公司 | Research and development of environment-friendly anti-mildew corrugated paper |
| CN115467191B (en) * | 2022-09-21 | 2023-08-15 | 珠海正业包装有限公司 | Development of environment-friendly mildew-proof corrugated paper |
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