CN109024086A - A kind of vegetables and fruits antibacterial fresh-keeping packaging paper - Google Patents
A kind of vegetables and fruits antibacterial fresh-keeping packaging paper Download PDFInfo
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- CN109024086A CN109024086A CN201810562696.5A CN201810562696A CN109024086A CN 109024086 A CN109024086 A CN 109024086A CN 201810562696 A CN201810562696 A CN 201810562696A CN 109024086 A CN109024086 A CN 109024086A
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- antibacterial
- fruits
- vegetables
- keeping packaging
- fresh
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Classifications
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- 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
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/154—Organic compounds; Microorganisms; Enzymes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
- C08F251/02—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/14—Secondary fibres
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/12—Defoamers
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/38—Corrosion-inhibiting agents or anti-oxidants
Abstract
The invention discloses a kind of vegetables and fruits antibacterial fresh-keeping packaging paper, the wrapping paper is prepared by following content of component: 55~75 parts of pulp fiber, 8~15 parts of adjuvant, 3~8 parts of antibacterial agent, the antibacterial agent is dandelion extract, wormwood extract and graphene oxide/fluorinated acrylate modified cellulose mixture.It joined plants antimicrobial extract and graphene/modified cellulose mixing composition antibacterial agent in graphene oxide fresh-keeping packaging material of the invention, also there is hydrophobic oleophobic performance with the other graphene/modified cellulose of good plant sterilization inhibiting effect, the growth of bacterium can be further suppressed and prevented, good antibacterial effect is all had to Escherichia coli, staphylococcus aureus etc., preparation method is simple, can be widely applied to vegetable and fruit packaging field.
Description
Technical field
The present invention relates to vegetables and fruits packing technique fields, more particularly, to a kind of vegetables and fruits antibacterial fresh-keeping packaging paper.
Background technique
The development of modern information technologies, so that people's lives more and more fast facilitate, more and more transaction can be
It is realized on network, the online shopping type of people also becomes increasingly abundant, and the purchase of fresh vegetables and fruits is also increasingly frequently.Exactly because but also net
The convenience of network, online shopping article are generally required across very long actual range, and logistics road is more long-range, need several days even one
A week gets to, and the time consumed by transportational process directly affects the freshness of fruits and vegetables, often will appear transport and reaches mesh
Ground later half more than fruits and vegetables all have occurred and rot or the case where taste bad.Traditional packaging industry, wrapping paper are
Play the role of common packaging, or have simple advertisement function, the function of anti-mildew fresh-keeping can not be reached, because
This, some hotel owners can place multiple ice bags for cryo-conservation in packing case, increase the selling cost and fortune of life indirectly
Defeated cost.It is exactly fresh-keeping using wrapping paper progress to this most straightforward approach, but there are no very effective fresh-keeping packets on the market
Paper is filled for fresh-keeping.Existing technology is mostly that cation is mould proof, is to use organic anti-fungus material or nano silver material, with
Alleviate food and clothing shoe box packet in transport, storage because of environmental factor caused by corruption mildew, still, long-time service has
The preservative film or packaging film of the metal materials such as silver ion glassware or organic anti-fungus material, can lead to inflammatory reaction, and oxidative stress is lost
Toxicity and cytotoxicity are passed, the health of human body is caused great harm, and pollutes environment.
Therefore it provides a kind of cost-effective antibacterial fresh-keeping packaging material has very important practical significance.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the inadequate health environment-friendly of existing fresh-keeping packaging material, fresh-keeping effect is bad
Deficiency, a kind of vegetables and fruits antibacterial fresh-keeping packaging paper is provided.
The object of the present invention is to provide a kind of preparation methods of above-mentioned graphene oxide fruits and vegetables fresh-keeping paper.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of vegetables and fruits antibacterial fresh-keeping packaging paper, the wrapping paper are prepared by following content of component: pulp fiber 55
~75 parts, 8~15 parts of adjuvant, 3~8 parts of antibacterial agent, the antibacterial agent is dandelion extract, wormwood extract and oxidation stone
Black alkene/fluorinated acrylate modified cellulose mixture.
Preferably, dandelion extract, wormwood extract and graphene oxide/fluorinated acrylate change in the antibacterial agent
Property cellulose mass ratio be 1~1.5:1.2~1.5:0.3~0.5.
Preferably, the graphene oxide/fluorinated acrylate modified cellulose is prepared via a method which to obtain:
S1. it prepares fluorinated acrylate modified cellulose: emulsifier, water and fluorinated acrylate monomer is mixed into pre- cream
Change, cellulose solution and initiator are added under inert gas conditions, polymerize synthesis modification cellulose, wherein polymerization temperature is 50
~60 DEG C, polymerization time is 4~7h, and emulsifier is lauryl sodium sulfate, and emulsifier is fluorinated acrylate monomer matter
The 3~5% of amount, initiator are potassium peroxydisulfate, and initiator amount is the 2~6% of fluorinated acrylate monomer quality, cellulose with
The mass ratio of fluorinated acrylate monomer is 1:2~1:6；
S2. prepare graphene oxide/fluorinated acrylate modified cellulose: the mixing for preparing highly basic, urea and thiocarbamide is molten
Liquid is cooled to -10~-20 DEG C, and modified cellulose and evenly dispersed graphene oxide solution in S1 is added in stirring, keeps temperature
It spends constant, is stirred to react 4~6h, adjust pH to neutrality to get graphene oxide/anti-oil assistant of modified cellulose antibacterial is arrived,
The mass ratio of middle modified cellulose and graphene oxide is 1:0.2~0.5, the quality of modified cellulose and highly basic, urea, thiocarbamide
Than for 1:1.6:1.3:1.6.
Fluorine-Containing Copolymer Emulsion is with good stability, and perfluorinated side chains group is contained in polymer, fluorine
Electronegativity is big, and fluorine atom has lone pair electrons, and the bond energy of C-F key is significantly larger than c h bond, therefore its surface free energy is lower, this
Sample makes fluoropolymer have such as preferable stability, chemical resistance, weatherability, electrical insulating property, stain resistant, hydrophobic
Many excellent performances such as oleophobic property and some other performance.Since cellulose has surface hydroxyl abundant, can change with many
Property group be modified, cellulose can be integrated after being modified promoted its water-proof and oil-proof performances.
Cellulose itself is three-dimensional net structure, and structural system is loose porous, can provide carrier for other auxiliary materials
And attachment point, intercalation synthesis can occur with graphene and react, obtain graphene oxide/modified cellulose antibacterial waterproof agent.Stone
Black alkene has excellent anti-microbial property, and load graphene oxide can be improved whole in monomer modified hydrophobic oleophobic cellulose skeleton
Drying and the spatter property of paper can be improved in the antibiotic property of a textile auxiliary agent, waterproof and oilproof performance, to inhibit the growth of bacterium
With prevent, obtain the Antibacterial accessory ingredient of excellent combination property.
Preferably, the mass ratio of modified cellulose described in S2 and graphene oxide is 1:0.3.The too low meeting of graphene content
Cause the anti-microbial property of material inadequate, is excessively then lost in the reaction system.
Preferably, emulsifier described in S1 is the 4.5% of fluorinated acrylate monomer quality.Emulsifier very little cannot
Stable emulsion system is formed, so that lotion is easy demulsification.With increasing for emulsifier, emulsion dispersion obtain it is thinner, more
Even, the micella number of solubilized monomer increases in system, and emulsion particle number increases, and corresponding particle surface product also increases with it, and has
Beneficial to the progress of mass transfer, to be easier that graft reaction occurs, i.e. monomer generation polymerization reaction is converted into the place of polymer just
More, therefore grafting rate increases.When emulsifier is excessive, the viscosity of reaction system is increased, affects the expansion of free radical
It dissipates, to hinder the progress of lotion synthesis, and increases cost, while will affect sizing efficiency, polymer emulsion is using
In easily foam, so that the water resistance of film is deteriorated.
Preferably, initiator amount described in S1 is the 4% of fluorinated acrylate monomer quality.
The modification of cellulose fluorochemical monomer is Raolical polymerizable, and initiator is the key component of free radical polymerization, directly
The yield and quality of product is influenced, and influences the rate of polymerization reaction.The effect of initiator mainly causes cellulose and is formed certainly
By base, then monomer is grafted on free radical, so that free-radical contents increase, reaction probability increases for the increase meeting of amount of initiator,
To make conversion ratio, grafting rate and grafting efficiency increase.When initiator be more than certain dosage, the quantity generated free radicals can be caused
Reach saturation, so that conversion ratio, grafting rate and grafting efficiency can be made to reduce.
Preferably, the mass ratio 1:5 of cellulose described in S1 and fluorinated acrylate monomer.Because of the activity on cellulose
Site is limited, and self-polymeric reaction is likely to occur between fluorochemical monomer, and self-polymeric reaction and graft reaction compete living chain, single
Bulk concentration is excessively high, will appear self-polymeric reaction and occupies an leading position.
Preferably, the pulp fiber includes the matter of softwood pulp and secondary stock, wherein softwood pulp and secondary stock
Amount is than being 19~21:9~11.Needle fiber can guarantee that the mechanical performance of wrapping paper entirety, Secondary Fiber Recycling are conducive to drop
Low cost.
Preferably, the adjuvant is levelling agent, defoaming agent, antioxidant and compatilizer.
A kind of preparation method of above-mentioned vegetables and fruits antibacterial fresh-keeping packaging paper, which comprises the steps of:
It is 250~280CSF that raw fibre, which is mixed with beating to stock freeness, is warming up to 80 DEG C, and adjuvant, warp is added
It crosses after removing the gred, discongest and screening and is sent into head box, by forming net forming；
After sizing material forming net forming, in front and back, drying room adds antibacterial agent by the method for coating, after dry press polish
To fresh-keeping packaging paper.
The preparation method is that antibacterial agent is added starching outer size application stage, the reservation of antibacterial agent can be improved well
Rate and additive effect.
Compared with prior art, the beneficial effects of the present invention are:
The present invention provides a kind of graphene oxide fresh-keeping packaging material, joined plants antimicrobial extract and graphene/
The antibacterial agent of modified cellulose mixing composition, has good plant sterilization inhibiting effect, in addition graphene/modified cellulose
Also there is hydrophobic oleophobic performance, the growth of bacterium can be further suppressed and prevented, to Escherichia coli, staphylococcus aureus etc.
Good antibacterial effect is all had, preparation method is simple, can be widely applied to vegetable and fruit packaging field.
Specific embodiment
Examples 1 to 10
A kind of vegetables and fruits antibacterial fresh-keeping packaging paper is prepared by following mass fraction component, and concrete component and content are seen below
Table 1.Wherein fibre stuff includes softwood pulp and secondary stock, the mass ratio 20:10 of softwood pulp and secondary stock.
The preparation step of vegetables and fruits antibacterial fresh-keeping packaging paper are as follows:
It is 250~280CSF that raw fibre, which is mixed with beating to stock freeness, is warming up to 80 DEG C, and adjuvant, warp is added
It crosses after removing the gred, discongest and screening and is sent into head box, by forming net forming；
After sizing material forming net forming, in front and back, drying room adds antibacterial agent by the method for coating, after dry press polish
To fresh-keeping packaging paper.
Table 1
Embodiment 15~23
A kind of vegetables and fruits antibacterial fresh-keeping packaging paper, component raw material and preparation method are same as Example 1, wherein in antibacterial agent
Graphene oxide/fluorinated acrylate modified cellulose the preparation method is as follows:
S1. it prepares fluorinated acrylate modified cellulose: emulsifier, water and fluorinated acrylate monomer is mixed into pre- cream
Change, cellulose solution and initiator are added under inert gas conditions, polymerize synthesis modification cellulose, wherein polymerization temperature is 60
DEG C, polymerization time 6h, emulsifier is lauryl sodium sulfate, and initiator is potassium peroxydisulfate；
S2. prepare graphene oxide/fluorinated acrylate modified cellulose: the mixing for preparing highly basic, urea and thiocarbamide is molten
Liquid is cooled to -10~-20 DEG C, and modified cellulose and evenly dispersed graphene oxide solution in S1 is added in stirring, keeps temperature
It spends constant, is stirred to react 5h, adjust pH to neutrality to get graphene oxide/anti-oil assistant of modified cellulose antibacterial is arrived, it is modified fine
Dimension element and the mass ratio of highly basic, urea, thiocarbamide are 1:1.5~2:1~1.5:1.5~2.
Design parameter is shown in Table 2
Wherein emulsifier is A% (in terms of Hexafluorobutyl mathacrylate quality)；Initiator amount is B% (with first
Base hexafluorobutyl acrylate quality meter)；The mass ratio of cellulose and fluorinated acrylate monomer is C；Modified cellulose and oxidation
The mass ratio of graphene is D.
Table 2
| Serial number | A | B | C | D |
| Embodiment 15 | 4.5 | 4 | 1:5 | 1:0.3 |
| Embodiment 16 | 3 | 4 | 1:5 | 1:0.3 |
| Embodiment 17 | 5 | 4 | 1:5 | 1:0.3 |
| Embodiment 18 | 4.5 | 2 | 1:5 | 1:0.3 |
| Embodiment 19 | 4.5 | 6 | 1:5 | 1:0.3 |
| Embodiment 20 | 4.5 | 4 | 1:2 | 1:0.3 |
| Embodiment 21 | 4.5 | 4 | 1:6 | 1:0.3 |
| Embodiment 22 | 4.5 | 4 | 1:5 | 1:0.2 |
| Embodiment 23 | 4.5 | 4 | 1:5 | 1:0.5 |
Comparative example 1
A kind of Fresh-keeping Packaging for Fruits and Vegetables paper is prepared by following mass fraction component, and 60 parts of fibre stuff, including needlebush
Slurry and secondary stock, the mass ratio 20:10 of softwood pulp and secondary stock, 12 parts of adjuvant.
The preparation step of wrapping paper are as follows:
It is 250~280CSF that raw fibre, which is mixed with beating to stock freeness, is warming up to 80 DEG C, and adjuvant, warp is added
It crosses after removing the gred, discongest and screening and is sent into head box, by forming net forming；
After sizing material forming net forming, in front and back, drying room adds antibacterial agent by the method for coating, after dry press polish
To fresh-keeping packaging paper.
Comparative example 2
A kind of vegetables and fruits antibacterial fresh-keeping packaging paper is prepared by following mass fraction component, and 60 parts of fibre stuff, including needle
The mass ratio 20:10 of leaf wood pulp and secondary stock, softwood pulp and secondary stock, 12 parts of adjuvant, 2 parts of antibacterial agent, wherein Pu
Public English extract: wormwood extract: graphene oxide/fluorinated acrylate modified cellulose mass ratio is 1:1.3:0.5.
Comparative example 3
A kind of vegetables and fruits antibacterial fresh-keeping packaging paper is prepared by following mass fraction component, and 60 parts of fibre stuff, including needle
The mass ratio 20:10 of leaf wood pulp and secondary stock, softwood pulp and secondary stock, 12 parts of adjuvant, 10 parts of antibacterial agent, wherein Pu
Public English extract: wormwood extract: graphene oxide/fluorinated acrylate modified cellulose mass ratio is 1:1.3:0.5.
Comparative example 4
A kind of Fresh-keeping Packaging for Fruits and Vegetables paper is prepared by following mass fraction component, and 60 parts of fibre stuff, including needlebush
Slurry and secondary stock, the mass ratio 20:10 of softwood pulp and secondary stock, 12 parts of adjuvant, 5 parts of antibacterial agent, antibacterial agent is by matter
Amount is formed than the dandelion extract and wormwood extract for being 1:1.3.
As a result it detects
According to QB 1014-91 food wrapper relevant criterions detect embodiment and comparative example preparation vegetable and fruit packaging paper into
Row bacteriostasis rate, fresh-keeping storage period and wastage in bulk or weight are detected, testing result such as the following table 2.
It can be seen that from the data of above-described embodiment and comparative example opposite with ordinary packing paper, preserving fruit and vegetable utilizing of the invention
Wrapping paper is significantly improved in storage time, anti-microbial property and storage consume, can substantially reduce fruit in storing process
Therefore vegetable can also reduce the nutriment life in fruits and vegetables storage by the risk of the pollutions such as bacterium, thus extend storage time,
Meet the needs of current fruits and vegetables express delivery long-distance transport.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of vegetables and fruits antibacterial fresh-keeping packaging paper, which is characterized in that the wrapping paper is prepared by following content of component: slurry
55~75 parts of fiber of material, 8~15 parts of adjuvant, 3~8 parts of antibacterial agent, the antibacterial agent is dandelion extract, wormwood extract
With graphene oxide/fluorinated acrylate modified cellulose mixture.
2. vegetables and fruits antibacterial fresh-keeping packaging paper as described in claim 1, which is characterized in that dandelion extract in the antibacterial agent,
Wormwood extract and graphene oxide/fluorinated acrylate modified cellulose mass ratio be 1~1.5:1.2~1.5:0.3~
0.5。
3. vegetables and fruits antibacterial fresh-keeping packaging paper as described in claim 1, which is characterized in that the graphene oxide/fluorine-containing
Ester modified cellulose is prepared via a method which to obtain:
S1. it prepares fluorinated acrylate modified cellulose: emulsifier, water and fluorinated acrylate monomer is mixed into pre-emulsification,
Cellulose solution and initiator are added under inert gas conditions, polymerize synthesis modification cellulose, wherein polymerization temperature is 50~60
DEG C, polymerization time is 4~7h, and emulsifier is lauryl sodium sulfate, and emulsifier is the 3 of fluorinated acrylate monomer quality
~5%, initiator is potassium peroxydisulfate, and initiator amount is the 2~6% of fluorinated acrylate monomer quality, cellulose with it is fluorine-containing
The mass ratio of acrylate monomer is 1:2~1:6；
S2. it prepares graphene oxide/fluorinated acrylate modified cellulose: preparing the mixed solution of highly basic, urea and thiocarbamide, it is cold
But to -10~-20 DEG C, modified cellulose and evenly dispersed graphene oxide solution in S1 is added in stirring, keeps temperature not
Become, be stirred to react 4~6h, adjusts pH to neutrality to get graphene oxide/anti-oil assistant of modified cellulose antibacterial is arrived, wherein changing
Property cellulose and the mass ratio of graphene oxide be 1:0.2~0.5, the mass ratio of modified cellulose and highly basic, urea, thiocarbamide is
1:1.6:1.3:1.6。
4. vegetables and fruits antibacterial fresh-keeping packaging paper as claimed in claim 3, which is characterized in that modified cellulose described in S2 and oxidation stone
The mass ratio of black alkene is 1:0.3.
5. vegetables and fruits antibacterial fresh-keeping packaging paper as claimed in claim 3, which is characterized in that emulsifier described in S1 is fluorine-containing third
The 4.5% of olefin(e) acid ester monomer quality.
6. vegetables and fruits antibacterial fresh-keeping packaging paper as claimed in claim 3, which is characterized in that initiator amount described in S1 is fluorine-containing third
The 4% of olefin(e) acid ester monomer quality.
7. vegetables and fruits antibacterial fresh-keeping packaging paper as claimed in claim 3, which is characterized in that cellulose described in S1 and fluorine-containing
The mass ratio 1:5 of ester monomer.
8. vegetables and fruits antibacterial fresh-keeping packaging paper as described in claim 1, which is characterized in that the pulp fiber include softwood pulp and
Secondary stock, wherein the mass ratio of softwood pulp and secondary stock is 19~21:9~11.
9. vegetables and fruits antibacterial fresh-keeping packaging paper as described in claim 1, which is characterized in that the adjuvant be levelling agent, defoaming agent,
Antioxidant and compatilizer.
10. a kind of preparation method of any one of the claims 1~9 vegetables and fruits antibacterial fresh-keeping packaging paper, which is characterized in that
Including the following steps: for raw fibre to be mixed with beating to stock freeness is 250~280CSF, is warming up to 80 DEG C, auxiliary is added
Agent is sent into head box after removing the gred, discongesting and screen, by forming net forming；It is dry in front and back after sizing material forming net forming
The dry method by coating adds antibacterial agent, obtains fresh-keeping packaging paper after dry press polish.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810562696.5A CN109024086A (en) | 2018-06-01 | 2018-06-01 | A kind of vegetables and fruits antibacterial fresh-keeping packaging paper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810562696.5A CN109024086A (en) | 2018-06-01 | 2018-06-01 | A kind of vegetables and fruits antibacterial fresh-keeping packaging paper |
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| Publication Number | Publication Date |
|---|---|
| CN109024086A true CN109024086A (en) | 2018-12-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110754686A (en) * | 2019-11-12 | 2020-02-07 | 广东中烟工业有限责任公司 | Faint scent type cigarette and preparation method thereof |
| CN115613386A (en) * | 2022-10-27 | 2023-01-17 | 洛阳菘田农业开发有限公司 | Mushroom freshness retaining packaging paper |
-
2018
- 2018-06-01 CN CN201810562696.5A patent/CN109024086A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110754686A (en) * | 2019-11-12 | 2020-02-07 | 广东中烟工业有限责任公司 | Faint scent type cigarette and preparation method thereof |
| CN110754686B (en) * | 2019-11-12 | 2022-03-22 | 广东中烟工业有限责任公司 | Faint scent type cigarette and preparation method thereof |
| CN115613386A (en) * | 2022-10-27 | 2023-01-17 | 洛阳菘田农业开发有限公司 | Mushroom freshness retaining packaging paper |
| CN115613386B (en) * | 2022-10-27 | 2023-06-20 | 洛阳菘田农业开发有限公司 | Mushroom fresh-keeping packaging paper |
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