CN112376325B - High-strength fruit bag paper and preparation method thereof - Google Patents

High-strength fruit bag paper and preparation method thereof Download PDF

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Publication number
CN112376325B
CN112376325B CN202011019885.1A CN202011019885A CN112376325B CN 112376325 B CN112376325 B CN 112376325B CN 202011019885 A CN202011019885 A CN 202011019885A CN 112376325 B CN112376325 B CN 112376325B
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paper
bentonite
fruit bag
mixed
layer
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CN112376325A (en
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张盟
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Zhengzhou Bafang Packaging Products Co ltd
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Zhengzhou Bafang Packaging Products Co ltd
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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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D21C5/022—Chemicals therefor
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
    • 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
    • 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
    • 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
    • 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
    • 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
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D21H19/822—Paper comprising more than one coating superposed two superposed coatings, both being pigmented
    • 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
    • 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
    • D21H21/18—Reinforcing agents
    • D21H21/20—Wet strength agents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Abstract

The application relates to the field of fruit bag paper manufacturing, and particularly discloses high-strength fruit bag paper and a preparation method thereof. The preparation method of the high-strength fruit bag paper comprises the following steps: uniformly mixing paper pulp with a filler, an auxiliary agent and a wet strength agent, and grinding the mixture into thick liquid to obtain mixed paper pulp; the auxiliary agent is at least one of poly diallyl dimethyl ammonium chloride, white oil, borax, alkyl ketene dimer, rosin and zirconium chloride; making the mixed paper pulp into base paper; spraying mixed glue solution on one surface of the base paper to form a wet spraying layer; the mixed glue solution is prepared from raw materials including bentonite, polyvinyl alcohol and epoxy resin; and spraying carbon black powder on the surface of the wet spraying layer, and drying to obtain the carbon black powder. In the high-strength fruit bag paper prepared by the preparation method of the high-strength fruit bag paper, the carbon black layer is firmly combined on the mixed glue layer and is not easy to fall off, and the mixed glue layer greatly improves the strength and tear resistance of the fruit bag paper.

Description

High-strength fruit bag paper and preparation method thereof
Technical Field
The application relates to the field of fruit bag paper manufacturing, in particular to high-strength fruit bag paper and a preparation method thereof.
Background
With the continuous development of the fruit market and the continuous increase of the fruit sales volume, the demand of fruit on the market degree is changed from quantity to quality. In order to improve the quality of fruits, bagging and fruit cultivation become a main measure for producing high-quality high-grade fruits in the fruit planting process. The bagging fruit cultivation can obviously improve the appearance quality of the fruit, effectively reduce the contact between the fruit and the pesticide and reduce the pesticide residue of the fruit. Because the time of fruit bag cover on the fruit is longer, this just requires that fruit bag paper has high water resistance, air permeability, and high water resistance can reduce the moisture on fruit bag surface and remain, reduces the fruit bag damage that leads to when rainfall is too much, and high air permeability can guarantee that the respiration of fruit goes on smoothly, does benefit to the growth.
Fruit bag paper that a lot of fruit bags used at present adopt thinner outer bag paper for guaranteeing high gas permeability mostly, and this can lead to breeding the bulk strength of fruit bag and reduce, when receiving exogenic action or meetting bad weather, it is very easy damaged to breed the fruit bag, influences and breeds fruit quality.
The invention patent with application publication number CN103774488A discloses a method for preparing high-air-permeability fruit-raising bagging paper, which adopts the following technical scheme: (1) pulping: mixing natural color softwood pulp with a beating degree of 30-38 DEG SR and hardwood pulp with a beating degree of 25-32 DEG SR to obtain mixed pulp; (2) co-grinding: dividing the mixed slurry into two parts, adding filler into one part, uniformly mixing, co-grinding to obtain paper pulp A with the beating degree of 45-55 DEG SR, and storing in a pulping tank A; adding carbon black powder and a filler into the other part, uniformly mixing, co-grinding to obtain paper pulp B with the beating degree of 40-55 DEG SR, and storing in a pulping tank B; (3) slurry preparation: respectively adding a sizing agent, a water repellent agent and a wet strength agent into the pulping tank A and the pulping tank B, and uniformly stirring; (4) forming a net part: respectively making pulp in a pulp making pool A and a pulp making pool B into paper, making the outer layer of the original color of the outer bag paper of the fruit-raising bag paper in the pulp making pool A, and making the basis weight of the finished paper to be 30 g.m -2 The black inner layer of the outer bag paper of the fruit-raising bag paper is manufactured by the pulping tank B, and the basis weight of the finished paper is 20 g.m -2 (ii) a (5) Dewatering and drying: laminating the black inner layer of the outer paper of the fruit cultivating bag paper and the natural color outer layer of the outer paper of the fruit cultivating bag paper, squeezing, dehydrating and drying to obtain the fruit cultivating bag paper. The fruit-raising bagging paper prepared by the method has good air permeability, but has lower strength, lower tensile strength and tear resistance, and the outer bag paper and the inner bag paper are easy to separate from each other.
Disclosure of Invention
In order to improve the tensile strength and tear resistance of the fruit bag paper, the application provides the high-strength fruit bag paper and the preparation method thereof.
In a first aspect, the preparation method of the high-strength fruit bag paper provided by the application adopts the following technical scheme:
a preparation method of high-strength fruit bag paper comprises the following steps:
1) uniformly mixing paper pulp with a filler, an auxiliary agent and a wet strength agent, and grinding the mixture into thick liquid to obtain mixed paper pulp; the auxiliary agent is at least one of poly diallyl dimethyl ammonium chloride, white oil, borax, alkyl ketene dimer, rosin and zirconium chloride;
making the mixed paper pulp into base paper;
2) spraying mixed glue solution on one surface of the base paper to form a wet spraying layer; the mixed glue solution is prepared from raw materials including bentonite, polyvinyl alcohol and epoxy resin;
3) And spraying carbon black powder on the surface of the wet spraying layer, and then drying to obtain the coating.
Through adopting above-mentioned technical scheme, the high strength fruit bag paper of this application mixes the glue solution at basic unit's paper surface spraying, then the spraying carbon black powder makes carbon black powder bond and form the charcoal black layer on wet spraying layer on the surface of the wet spraying layer that mixed glue solution formed, and the adhesion force between charcoal black layer and the basic unit paper is stronger, and the carbon black is difficult to drop from the basic unit. Moreover, after the mixed glue solution is sprayed on the surface of the base paper, a glue layer can be formed between the base paper and the carbon black layer after drying, so that the tensile strength and the tear resistance of the fruit bag paper are greatly improved.
Preferably, the mixed glue solution in the step 2) is prepared by a preparation method comprising the following steps:
a) soaking bentonite in hydrochloric acid for 3-5min, soaking in water for 1-3h, and oven drying to obtain pretreated bentonite;
b) then uniformly mixing the pretreated bentonite with a silane coupling agent, ethanol and water to prepare retreated bentonite;
c) uniformly mixing the reprocessed bentonite with polyvinyl alcohol, epoxy resin and water to prepare a mixed glue solution.
By adopting the technical scheme, the bentonite is subjected to silane coupling treatment by the mixed glue solution, then the bentonite subjected to silane coupling treatment is mixed with polyvinyl alcohol, epoxy resin and water to prepare the mixed glue solution, and the bentonite is mixed into the mixed glue solution, so that the strength of the glue layer is improved, and the air permeability of the glue layer can be improved by utilizing the contractibility of bentonite powder particles. After the bentonite is soaked by hydrochloric acid, part of components in the bentonite can be dissolved, more micropores are generated in bentonite particles, and the air permeability of the bentonite is improved. After the bentonite after acid leaching is treated by the silane coupling agent and the ethanol, more silane coupling agent can be combined on the surface of the bentonite, the bentonite is more firmly combined with the polyvinyl alcohol and the epoxy resin in the later period, and the falling probability of the bentonite after multiple expansion and contraction is reduced.
Preferably, the mass fraction of hydrochloric acid in step a) is 0.5-1%.
By adopting the technical scheme, the mass fraction of the hydrochloric acid is low, the aim of acid leaching can be fulfilled, part of substances in the bentonite are dissolved and removed to generate micropores, and the production cost can be reduced.
Preferably, in the step b), when the pretreated bentonite is uniformly mixed with the silane coupling agent, the ethanol and the water, the silane coupling agent, the ethanol and the water are uniformly mixed, then the pretreated bentonite is added and uniformly mixed, solid-liquid separation is carried out, and drying is carried out, so as to obtain the retreated bentonite.
By adopting the technical scheme, the silane coupling agent is uniformly mixed with the ethanol and the water, so that the silane coupling agent is uniformly dispersed in the mixed solution of the ethanol and the water, and when the pretreated bentonite is added, the pretreated bentonite particles are equivalently added into a system in which the silane coupling agent is discretely distributed, so that the silane coupling agent molecules are uniformly combined on the pretreated bentonite particles, and the silanization treatment effect is better.
Preferably, the proportion of the silane coupling agent, the ethanol and the water is 15-25L of ethanol and 8-12L of water per 1kg of the silane coupling agent.
By adopting the technical scheme, the amount of the ethanol and the water is more in the proportion of the silane coupling agent, the ethanol and the water, and a more uniform dispersion system with the silane coupling agent in discrete distribution can be obtained after mixing.
Preferably, 2 to 3kg of the pretreated bentonite is used per 1kg of the silane coupling agent.
By adopting the technical scheme, compared with the silane coupling agent, the amount of the pretreated bentonite is basically close to that of the silane coupling agent, the silane coupling agent distributed on the surface of the pretreated bentonite particles obtained after mixing can be controlled to be neither too much nor too little, and after subsequent mixing with the glue solution, the modified bentonite particles can be firmly combined with the glue solution and are convenient to form a certain gap with the glue solution after cooling and shrinking.
Preferably, the step c) of uniformly mixing the retreated bentonite with the polyvinyl alcohol and the epoxy resin is to uniformly mix the polyvinyl alcohol, the water and the epoxy resin, and then uniformly mix the retreated bentonite with the mixture.
By adopting the technical scheme, because the solubility difference of the polyvinyl alcohol and the epoxy resin in water is large, the polyvinyl alcohol and the epoxy resin are mixed with water, and after the polyvinyl alcohol and the epoxy resin are dissolved in the water, the reprocessed bentonite is added, so that the reprocessed bentonite, the polyvinyl alcohol and the epoxy resin can be conveniently formed into a uniform mixed dispersion system.
Preferably, the drying in step 3) is drying at 70-80 ℃, and cooling with cold air at 10-15 ℃ after drying.
By adopting the technical scheme, the higher temperature is adopted during drying, the solvent in the mixed glue solution is ensured to be fully volatilized, and certain pores can be formed around the modified bentonite particles and the organic matters by cooling with cold air after drying, so that the air permeability of the glue layer is improved.
In a second aspect, the application provides a high-strength fruit bag paper, which adopts the following technical scheme:
a high-strength fruit bag paper prepared by the method.
By adopting the technical scheme, the high-strength fruit bag paper is prepared by adopting the preparation method, and has higher tensile strength and tear resistance.
Preferably, the high-strength fruit bag paper comprises base paper, a mixed glue layer and a carbon black layer which are sequentially arranged; the thickness of the base layer paper is 25-50 μm, the thickness of the mixed glue layer is 0.1-0.4mm, and the thickness of the carbon black layer is 0.3-0.8 mm.
By adopting the technical scheme, the base paper and the carbon black layer of the high-strength fruit bag paper are bonded together through the mixed glue layer, so that the strength of the fruit bag paper is greatly improved, the bonding strength of the carbon black powder on the base paper is also improved, and the falling of the carbon black is reduced.
In summary, the present application has the following beneficial effects:
1. according to the preparation method of the high-strength fruit bag paper, the base layer paper is prepared, then the mixed glue solution is sprayed on the base layer paper, and the carbon black powder is sprayed on the wet spraying layer formed by the mixed glue solution to form the carbon black layer, the carbon black layer is firmly combined on the mixed glue layer and is not easy to fall off, and the mixed glue layer greatly improves the strength and the tear resistance of the fruit bag paper.
2. The mixed glue solution used in the preparation method of the high-strength fruit bag paper is obtained by performing acid leaching and silane coupling treatment on bentonite, and then mixing the bentonite with polyvinyl alcohol and epoxy resin, and the finally obtained mixed glue layer not only has high strength, but also the bentonite particles can form certain micropores in the glue layer, so that the air permeability of the fruit bag paper is improved.
Detailed Description
The present application will be described in further detail with reference to examples.
The preparation method of the high-strength fruit bag paper comprises the following steps:
1) uniformly mixing paper pulp with a filler, an auxiliary agent and a wet strength agent, and grinding the mixture into thick liquid to obtain mixed paper pulp; the auxiliary agent is at least one of poly diallyl dimethyl ammonium chloride, white oil, borax, alkyl ketene dimer, rosin and zirconium chloride;
making the mixed paper pulp into base paper;
2) spraying mixed glue solution on one surface of the base paper to form a wet spraying layer; the mixed glue solution is prepared from raw materials including bentonite, polyvinyl alcohol and epoxy resin;
3) and then spraying carbon black powder on the surface of the wet spraying layer, and drying to obtain the carbon black powder.
The pulp is made by a process comprising the steps of: acid leaching the waste paper raw material, separating solid and liquid, uniformly mixing the solid and aluminum sulfate, and then pulping to obtain paper pulp.
The waste paper raw material is obtained by crushing waste paper. The waste paper is at least one of waste fruit paper bags, waste paper boxes, waste kraft paper and waste printing paper. Pulverizing waste paper into powderPulverizing into pieces with area of 16-36cm 2 The sheet of paper of (1). Preferably, the waste paper comprises any one of waste paper boxes and waste kraft paper, waste fruit bag paper and waste printing paper according to the mass ratio of 45-50:35-40: 10-15. Preferably, the waste paper comprises waste paper boxes, waste fruit paper bags and waste printing paper according to the mass ratio of 45-50:35-40: 10-15.
In the step 1), the acid leaching is carried out by soaking with hydrochloric acid with the mass fraction of 0.5-1%. The soaking time is 1-5 h. And (3) carrying out solid-liquid separation after acid leaching, uniformly mixing the solid obtained by solid-liquid separation with aluminum sulfate, and then pulping. The mass of the aluminum sulfate is 1-3% of the mass of the solid obtained by solid-liquid separation. The temperature during pulping is 60-80 ℃. The beating degree of the paper pulp is 50-60 DEG SR.
The filler in the step 1) is at least one of kaolin and bentonite. The wet strength agent is a PAE wet strength agent.
The mass ratio of the paper pulp to the filler is 100: 7-10. The mass ratio of the paper pulp to the auxiliary agent is 100: 8-12. The mass ratio of the paper pulp to the wet strength agent is 100: 1-2.
And when the paper pulp, the filler, the auxiliary agent and the wet strength agent are uniformly mixed, dimethyl urea glyoxal resin (DMUG) is also added, and the mass ratio of the paper pulp to the dimethyl urea glyoxal resin is 100: 1-1.5.
In the step 1), the paper pulp, the filler, the auxiliary agent and the wet strength agent are uniformly mixed, namely, the paper pulp and the filler are uniformly mixed, then the paper pulp and the auxiliary agent are uniformly mixed, and then the paper pulp and the wet strength agent are uniformly mixed. The beating degree of the mixed pulp is 40-50 DEG SR.
Preferably, the auxiliary agent is prepared from polydiallyl dimethyl ammonium chloride, white oil and borax in a mass ratio of 10-15:15-18: 2-3. The borax is added, so that the retention proportion of the white oil on the surface of the paper pulp fiber can be greatly improved, and the water resistance of the auxiliary agent is further improved.
Preferably, the auxiliary agent is formed by mixing polydiallyl dimethyl ammonium chloride, white oil, borax and zirconium chloride according to the mass ratio of 12:15:2.5: 1. Zirconium chloride is added into the mixed auxiliary agent, so that the water resistance is greatly improved.
Preferably, the auxiliary agent is prepared by mixing polydiallyl dimethyl ammonium chloride, white oil and borax in a mass ratio of 10-15:15-18:2-3, stirring for 2-3min at 80-90 ℃, then adding water at 85-95 ℃, and stirring for 5-10min at the rotating speed of 12000-15000 rpm.
In the step 1), the papermaking quantitative amount of the mixed paper pulp during papermaking is 20-60g/m 2 . Preferably, the papermaking quantitative ratio of the mixed pulp in the step 1) is 20 to 30g/m 2 。
The mixed glue solution in the step 2) is prepared by a preparation method comprising the following steps: a) soaking bentonite in hydrochloric acid for 3-5min, soaking in water for 1-3h, and oven drying to obtain pretreated bentonite; b) then uniformly mixing the pretreated bentonite with a silane coupling agent, ethanol and water to prepare retreated bentonite; c) uniformly mixing the reprocessed bentonite with polyvinyl alcohol and epoxy resin to obtain a mixed glue solution.
The hydrochloric acid in step a) is preferably industrial waste hydrochloric acid.
And b), uniformly mixing the pretreated bentonite with the silane coupling agent, the ethanol and the water in the step b), uniformly mixing the silane coupling agent, the ethanol and the water, adding the pretreated bentonite, uniformly mixing, carrying out solid-liquid separation, and drying to obtain the retreated bentonite. Adding the pretreated bentonite, and stirring for 1-3 h. The proportion of the silane coupling agent, the ethanol and the water is 15-25L of ethanol and 8-12L of water per 1kg of the silane coupling agent. 2-3kg of pretreated bentonite is added to 1kg of silane coupling agent.
Preferably, the step c) of uniformly mixing the reprocessed bentonite with the polyvinyl alcohol and the epoxy resin is to uniformly mix the polyvinyl alcohol with water at 60-70 ℃, then uniformly mix the polyvinyl alcohol with the epoxy resin at 60-70 ℃ to obtain a glue solution, and then uniformly mix the glue solution and the reprocessed bentonite. Mixing at the temperature can ensure that the polyvinyl alcohol and the epoxy resin have excellent performances and the polyvinyl alcohol has higher curing degree.
The polyvinyl alcohol and the water are evenly mixed and stirred for 1 to 2 hours. Mixing with epoxy resin uniformly, and stirring for 30-40 min. Mixing the glue solution and the retreated bentonite uniformly, and stirring for 10-20 min.
Every 1kg of the reprocessed bentonite corresponds to 1-2kg of polyvinyl alcohol, 0.2-0.5kg of epoxy resin and 10-20L of water.
The thickness of the wet spraying layer in the step 2) is 0.1-1 mm. Preferably, it is 0.15 to 0.5 m.
When the mixed glue solution is sprayed in the step 2), continuous uniform spraying or point spraying can be adopted, and dense point glue layers are formed on the surface of the base paper.
Example 1
The preparation method of the high-strength fruit bag paper comprises the following steps:
1) and collecting waste paper, wherein the waste paper is a waste paper box. Cutting waste paper into fragments of 4cm x 4cm, adding the fragments into an acid leaching pool, soaking the fragments in a waste hydrochloric acid solution with the mass fraction of HCl being 0.5% for 5 hours, then filtering, adding aluminum sulfate accounting for 1% of the filter residue by mass percent into the filter residue, stirring and mixing uniformly, then adding a beater and beating at 60 ℃ to obtain paper pulp; the beating degree of the paper pulp is 60 °
SR。
2) Adding bentonite accounting for 7% of the mass of the paper pulp into the paper pulp prepared in the step 1), uniformly stirring, then adding polydiallyl dimethyl ammonium chloride, rosin and alkyl ketene dimer, and uniformly stirring, wherein the mass ratio of the polydiallyl dimethyl ammonium chloride to the rosin to the alkyl ketene dimer is 15:15: 2; then adding a PAE wet strength agent accounting for 2 percent of the mass percent of the paper pulp, and then transferring the paper pulp into a refiner for refining to obtain mixed paper pulp with the beating degree of 50 DEG SR.
3) Making the mixed paper pulp, and drying to obtain base paper; the papermaking quantitative rate is 20g/m 2 。
4) Adding 1kg of polyvinyl alcohol into 10L of water, heating to 60 ℃, stirring for 2h, then adding 0.2kg of epoxy resin, and continuing stirring for 30min to obtain a glue solution;
5) spraying the glue solution on one surface of the base paper prepared in the step 1) to form a wet spraying layer on the surface of the base paper, wherein the thickness of the wet spraying layer is about 0.15mm, then spraying carbon black on the surface of the wet spraying layer, and drying to obtain the high-strength fruit bag paper.
The high-strength fruit bag paper comprises base paper and a glue layer coated on one surface of the base paper, wherein a carbon black layer is coated on the surface, far away from the base paper, of the glue layer. The thickness of the base paper was about 25 μm, the thickness of the glue layer (after drying) was 0.1mm, and the thickness of the carbon black layer was about 0.3 mm.
Example 2
The preparation method of the high-strength fruit bag paper comprises the following steps:
1) and collecting waste paper, wherein the waste paper is formed by mixing waste paper boxes and waste kraft paper according to the mass ratio of 50: 40. Cutting waste paper into fragments of 4cm x 4cm, adding the fragments into an acid leaching pool, soaking the fragments in a waste hydrochloric acid solution with the mass fraction of HCl being 0.5% for 5 hours, then filtering, adding aluminum sulfate accounting for 1% of the filter residue by mass percent into the filter residue, stirring and mixing uniformly, then adding a beater and beating at 60 ℃ to obtain paper pulp; the freeness of the pulp was 60 ° SR.
2) Mixing poly (diallyldimethylammonium chloride), rosin and alkyl ketene dimer according to the mass ratio of 15:15:2, heating to 80 ℃, and stirring for 3 min; then adding water with the temperature of 85 ℃, stirring for 10min at the rotating speed of 12000rpm,
obtaining a mixed auxiliary agent;
adding kaolin accounting for 7% of the mass of the paper pulp into the paper pulp prepared in the step 1), uniformly stirring, then adding the mixed auxiliary agent accounting for 8% of the mass of the paper pulp, uniformly stirring, then adding a PAE wet strength agent accounting for 2% of the mass of the paper pulp, and then transferring the paper pulp into a pulping machine for pulping to obtain mixed paper pulp with the pulping degree of 50 DEG SR.
3) Making the mixed paper pulp, and drying to obtain base paper; the papermaking quantitative rate is 20g/m 2 。
4) Adding bentonite into a nylon sieve cylinder, and putting the nylon sieve cylinder into an acid leaching pool, wherein a waste hydrochloric acid solution with the mass fraction of 1% is contained in the acid leaching pool; soaking for 3min, taking out the nylon sieve tube, placing into a clean water tank, and soaking for 3 h; taking out the nylon screen cylinder, and drying to obtain pretreated bentonite;
mixing and stirring 1kg of mercaptopropyl trimethoxy silane, 15L of ethanol, 8L of water and 2kg of the pretreated bentonite for 1 hour, filtering and drying to obtain reprocessed bentonite;
Adding 1kg of polyvinyl alcohol and 0.2kg of epoxy resin into 10L of water, heating to 60 ℃, and stirring for 2 hours to obtain a glue solution; adding 1kg of the retreated bentonite into the glue solution, and stirring for 10min to obtain a mixed glue solution;
spraying the mixed glue solution on one surface of the base paper prepared in the step 1), forming a wet spraying layer on the surface of the base paper, wherein the thickness of the wet spraying layer is about 0.15mm, then spraying carbon black on the surface of the wet spraying layer, drying, then drying at 75 ℃, and then cooling with 15 ℃ cold air to obtain the high-strength fruit bag paper.
The high-strength fruit bag paper comprises base paper and a glue layer coated on one surface of the base paper, wherein a carbon black layer is coated on the surface, far away from the base paper, of the glue layer. The thickness of the base paper was about 25 μm, the thickness of the glue layer (after drying) was 0.1mm, and the thickness of the carbon black layer was about 0.3 mm.
Example 3
The preparation method of the high-strength fruit bag paper comprises the following steps:
1) collecting waste paper, wherein the waste paper is formed by mixing waste paper boxes, waste fruit bag paper and waste printing paper according to a mass ratio of 40:40: 15. Cutting waste paper into fragments of 6cm x 6cm, adding the fragments into an acid leaching pool, soaking the fragments in a waste hydrochloric acid solution with the mass fraction of HCl being 1% for 1h, then filtering, adding aluminum sulfate accounting for 3% of the filter residue by mass percent into the filter residue, stirring and mixing uniformly, and then adding a beater to beat at 80 ℃ to obtain paper pulp; the freeness of the pulp was 50 ° SR.
2) Mixing poly (diallyldimethylammonium chloride), white oil and borax according to a mass ratio of 15:15:2, heating to 90 ℃, and stirring for 2 min; then adding warm water with the temperature of 95 ℃, and stirring for 5min at the rotating speed of 15000rpm to obtain a mixed auxiliary agent;
adding kaolin accounting for 10% of the mass of the paper pulp into the paper pulp prepared in the step 1), uniformly stirring, then adding the mixed auxiliary agent accounting for 12% of the mass of the paper pulp, uniformly stirring, then adding a PAE wet strength agent accounting for 2% of the mass of the paper pulp, and then transferring the paper pulp into a pulping machine for pulping to obtain mixed paper pulp with the pulping degree of 40 DEG SR.
3) Making the mixed paper pulp, and drying to obtain base paper; the papermaking quantitative was 30g/m 2 。
4) Adding bentonite into a nylon sieve cylinder, and putting the nylon sieve cylinder into an acid leaching pool, wherein the acid leaching pool is filled with a waste hydrochloric acid solution with the mass fraction of 0.8%; soaking for 4min, taking out the nylon sieve tube, placing into a clean water tank, and soaking for 2 h; taking out the nylon screen cylinder, and drying to obtain pretreated bentonite;
adding 1kg of mercaptopropyl trimethoxy silane into an ethanol solution obtained by mixing 25L of ethanol and 12L of water, uniformly stirring, then adding 3kg of the pretreated bentonite, uniformly stirring, soaking for 3 hours, filtering, and drying to obtain retreated bentonite;
Adding 2kg of polyvinyl alcohol into 20L of water, heating to 70 ℃, stirring for 1h, then adding 0.5kg of epoxy resin, and continuing stirring for 40min to obtain a glue solution; adding 1kg of the above-mentioned retreated bentonite into the glue solution, and stirring for 20min to obtain a mixed glue solution;
5) spraying the mixed glue solution on one surface of the base paper prepared in the step 1), forming a wet spraying layer on the surface of the base paper, wherein the thickness of the wet spraying layer is about 0.5mm, then spraying carbon black on the surface of the wet spraying layer, drying, then drying at 75 ℃, and then cooling with cold air at 10 ℃ to obtain the high-strength fruit bag paper.
The high-strength fruit bag paper comprises base paper and a glue layer coated on one surface of the base paper, wherein a carbon black layer is coated on the surface, far away from the base paper, of the glue layer. The thickness of the base paper was about 50 μm, the thickness of the glue layer (after drying) was 0.4mm, and the thickness of the carbon black layer was about 0.8 mm.
Example 4
The preparation method of the high-strength fruit bag paper comprises the following steps:
1) collecting waste paper, wherein the waste paper is formed by mixing waste paper boxes, waste fruit bag paper and waste printing paper according to the mass ratio of 50:35: 10. Cutting waste paper into 5 cm-5 cm fragments, adding the fragments into an acid leaching pool, soaking the fragments in a waste hydrochloric acid solution with the mass fraction of HCl being 0.8% for 2 hours, then filtering, adding aluminum sulfate accounting for 3% of the filter residue by mass percent into the filter residue, stirring and mixing uniformly, then adding a beater and beating at 68 ℃ to obtain paper pulp; the freeness of the pulp was 55 ° SR.
2) Mixing poly (diallyldimethylammonium chloride), white oil and borax according to a mass ratio of 10:18:3, heating to 85 ℃, and stirring for 2 min; then adding warm water with the temperature of 90 ℃, and stirring for 7min at the rotating speed of 13500rpm to obtain a mixed auxiliary agent;
adding kaolin accounting for 8% of the mass of the paper pulp into the paper pulp prepared in the step 1), uniformly stirring, then adding the mixed auxiliary agent accounting for 10% of the mass of the paper pulp, uniformly stirring, then adding a PAE wet strength agent accounting for 1.5% of the mass of the paper pulp, and then transferring the paper pulp into a pulping machine for pulping to obtain mixed paper pulp with the pulping degree of 45 DEG SR.
3) Making the mixed paper pulp, and drying to obtain base paper; the papermaking quantitative was 25g/m 2 。
4) Adding bentonite into a nylon sieve cylinder, and putting the nylon sieve cylinder into an acid leaching pool, wherein the acid leaching pool is filled with a waste hydrochloric acid solution with the mass fraction of 0.5%; soaking for 5min, taking out the nylon screen cylinder, putting into a clean water tank, and soaking for 1 h; taking out the nylon screen cylinder, and drying to obtain pretreated bentonite;
adding 1kg of mercaptopropyl trimethoxy silane into an ethanol solution obtained by mixing 20L of ethanol and 10L of water, uniformly stirring, then adding 2.5kg of the pretreated bentonite, uniformly stirring, soaking for 2 hours, filtering, and drying to obtain retreated bentonite;
Adding 1kg of polyvinyl alcohol into 15L of water, heating to 65 ℃, stirring for 1.8h, then adding 0.3kg of epoxy resin, and continuing stirring for 35min to obtain a glue solution; adding 1kg of the above-mentioned retreated bentonite into the glue solution, and stirring for 15min to obtain a mixed glue solution;
5) spraying the mixed glue solution on one surface of the base paper prepared in the step 1), forming a wet spraying layer on the surface of the base paper, wherein the thickness of the wet spraying layer is about 0.2mm, then spraying carbon black on the surface of the wet spraying layer, drying, then drying at 80 ℃, and then cooling with cold air at 10 ℃ to obtain the high-strength fruit bag paper.
The high-strength fruit bag paper comprises base paper and a glue layer coated on one surface of the base paper, wherein a carbon black layer is coated on the surface, far away from the base paper, of the glue layer. The thickness of the base paper was about 30 μm, the thickness of the glue layer (after drying) was 0.15mm, and the thickness of the carbon black layer was about 0.5 mm.
Example 5
The preparation method of the high-strength fruit bag paper comprises the following steps:
1) collecting waste paper, wherein the waste paper is formed by mixing waste paper boxes, waste fruit bag paper and waste printing paper according to a mass ratio of 50:40: 10. Cutting waste paper into 5 cm-5 cm fragments, adding the fragments into an acid leaching pool, soaking the fragments in a waste hydrochloric acid solution with the mass fraction of HCl being 0.7% for 2 hours, then filtering, adding aluminum sulfate accounting for 2% of the filter residue by mass percent into the filter residue, stirring and mixing uniformly, and then adding a beater to beat at 70 ℃ to obtain paper pulp; the freeness of the pulp was 55 ° SR.
2) Mixing poly (diallyldimethylammonium chloride), white oil, borax and zirconium chloride according to the mass ratio of 12:15:2.5:1, heating to 85 ℃, and stirring for 2 min; then adding water with the temperature of 88 ℃, and stirring for 8min at the rotating speed of 13000rpm to obtain a mixed auxiliary agent;
adding kaolin accounting for 8% of the mass of the paper pulp into the paper pulp prepared in the step 1), uniformly stirring, then adding the mixed auxiliary agent accounting for 10% of the mass of the paper pulp, uniformly stirring, then adding a PAE wet strength agent accounting for 1.8% of the mass of the paper pulp and dimethyl urea glyoxal resin accounting for 1% of the mass of the paper pulp, and then transferring the paper pulp into a refiner for refining to obtain mixed paper pulp with the beating degree of 40 DEG SR.
3) Making the mixed paper pulp, and drying to obtain base paper; the papermaking quantitative was 25g/m 2 。
4) Adding bentonite into a nylon sieve cylinder, and putting the nylon sieve cylinder into an acid leaching pool, wherein the acid leaching pool is filled with a waste hydrochloric acid solution with the mass fraction of 0.5%; soaking for 5min, taking out the nylon screen cylinder, putting into a clean water tank, and soaking for 1 h; taking out the nylon screen cylinder, and drying to obtain pretreated bentonite;
adding 1kg of mercaptopropyl trimethoxy silane into an ethanol solution obtained by mixing 20L of ethanol and 10L of water, uniformly stirring, then adding 2kg of the pretreated bentonite, uniformly stirring, soaking for 1h, filtering, and drying to obtain retreated bentonite;
Adding 1kg of polyvinyl alcohol into 15L of water, heating to 65 ℃, stirring for 1.5h, then adding 0.3kg of epoxy resin, and continuing stirring for 35min to obtain a glue solution; adding 1kg of the above-mentioned retreated bentonite into the glue solution, and stirring for 15min to obtain a mixed glue solution;
5) spraying the mixed glue solution on one surface of the base paper prepared in the step 1), forming a wet spraying layer on the surface of the base paper, wherein the thickness of the wet spraying layer is about 0.2mm, then spraying carbon black on the surface of the wet spraying layer, drying at 80 ℃, and then cooling with cold air at 10 ℃ to obtain the high-strength fruit bag paper.
The high-strength fruit bag paper comprises base paper and a glue layer coated on one surface of the base paper, wherein a carbon black layer is coated on the surface, far away from the base paper, of the glue layer. The thickness of the base paper is about 30 μm, the thickness of the glue layer (after drying) is 0.15mm, and the thickness of the carbon black layer is about 0.5 mm.
Comparative example
The preparation method of the fruit bag paper of the comparative example comprises the following steps:
1) and collecting waste paper, wherein the waste paper is a waste paper box. Cutting waste paper into fragments of 4cm x 4cm, adding the fragments into an acid leaching pool, soaking the fragments in a waste hydrochloric acid solution with the mass fraction of HCl being 0.5% for 5 hours, then filtering, adding aluminum sulfate accounting for 1% of the filter residue by mass percent into the filter residue, stirring and mixing uniformly, then adding a beater and beating at 60 ℃ to obtain paper pulp; the beating degree of the paper pulp is 60 °
SR。
2) Adding bentonite accounting for 7% of the mass of the paper pulp into the paper pulp prepared in the step 1), uniformly stirring, then adding polydiallyl dimethyl ammonium chloride, rosin and alkyl ketene dimer, and uniformly stirring, wherein the mass ratio of the polydiallyl dimethyl ammonium chloride to the rosin to the alkyl ketene dimer is 15:15: 2; then adding a PAE wet strength agent accounting for 2 percent of the mass of the paper pulp, and then transferring the paper pulp into a pulping machine for pulping to obtain mixed paper pulp with the pulping degree of 50 DEG SR.
3) Taking the mixed paper pulp for papermaking without drying to prepare wet base paper; the papermaking quantitative rate is 20g/m 2 (ii) a Taking mixed paper pulpAdding carbon black powder accounting for 5% of the mixed paper pulp by mass, uniformly mixing, and then making paper without drying to obtain wet inner bag paper; and laminating the inner bag paper and the base layer paper, dehydrating and drying to obtain the fruit bag paper.
The fruit bag paper of the embodiment comprises base paper and inner bag paper coated on one surface of the base paper. The thickness of the base paper is about 50 μm and the thickness of the inner pouch paper is about 200 μm.
Test examples
The high-strength pouch paper obtained in examples 1 to 5 and the pouch paper obtained in comparative example were subjected to tensile index, tear index, air permeability and front surface water absorption test according to the test methods in GB/T19341-2015 "pouch paper", and the test results are shown in Table 1.
TABLE 1 comparison of the properties of the sack paper in examples 1-5 and comparative examples
Figure BDA0002700252900000101
It can be seen from the combination of examples 1-5 and comparative examples and table 1 that, in the preparation method of the high-strength fruit bag paper, a means of spraying the mixed glue solution on the surface of the base paper and then spraying the carbon black is adopted, the carbon black is firmly fixed on the surface of the paper layer by the mixed glue layer, and the tensile index and the tearing index of the fruit bag paper are greatly improved by utilizing the strength and the toughness of the mixed glue layer, so that the fruit bag paper has good mechanical properties, and meanwhile, higher air permeability and lower water absorption are ensured.
By combining the embodiment 1 and the embodiment 2 and combining the table 1, it can be seen that when the modified bentonite is not added to the mixed glue solution, the air permeability of the fruit bag paper is poor due to the influence of the mixed glue layer, and the tensile index and the tearing index are relatively low, and after the modified bentonite is added, the air permeability and the mechanical property are improved to different degrees.

Claims (5)

1. A preparation method of high-strength fruit bag paper is characterized by comprising the following steps: the method comprises the following steps:
1) uniformly mixing paper pulp with a filler, an auxiliary agent and a wet strength agent, and grinding the mixture into thick liquid to obtain mixed paper pulp; the auxiliary agent is at least one of poly diallyl dimethyl ammonium chloride, white oil, borax, alkyl ketene dimer, rosin and zirconium chloride;
Manufacturing the mixed paper pulp to obtain base paper;
2) spraying mixed glue solution on one surface of the base paper to form a wet spraying layer; the mixed glue solution is prepared from raw materials including bentonite, polyvinyl alcohol and epoxy resin;
3) spraying carbon black powder on the surface of the wet spraying layer, and then drying to obtain the coating;
the mixed glue solution in the step 2) is prepared by a method comprising the following steps:
a) soaking bentonite in hydrochloric acid for 3-5min, soaking in water for 1-3h, and oven drying to obtain pretreated bentonite, wherein the mass fraction of hydrochloric acid is 0.5-1%;
b) then, uniformly mixing the silane coupling agent, ethanol and water, then adding the pretreated bentonite, uniformly mixing, carrying out solid-liquid separation, and drying to obtain retreated bentonite, wherein the proportion of the silane coupling agent, the ethanol and the water is 15-25L of ethanol and 8-12L of water per 1kg of the silane coupling agent; 2-3kg of pretreated bentonite is corresponding to 1kg of silane coupling agent;
c) uniformly mixing the reprocessed bentonite with polyvinyl alcohol, epoxy resin and water to prepare a mixed glue solution.
2. The method for preparing high strength fruit bag paper according to claim 1, wherein: in the step c), the step of uniformly mixing the reprocessed bentonite with the polyvinyl alcohol and the epoxy resin is to uniformly mix the polyvinyl alcohol, the water and the epoxy resin and then uniformly mix the reprocessed bentonite.
3. The method for preparing high strength fruit bag paper according to claim 1, wherein: the drying in the step 3) is drying at 70-80 ℃, and cooling with cold air at 10-15 ℃ after drying.
4. A high strength fruit bag paper made according to the method of claim 1.
5. The high strength fruit bag paper according to claim 4, wherein: the high-strength fruit bag paper comprises base paper, a mixed glue layer and a carbon black layer which are sequentially arranged; the thickness of the base layer paper is 25-50 μm, the thickness of the mixed glue layer is 0.1-0.4mm, and the thickness of the carbon black layer is 0.3-0.8 mm.
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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003205968A (en) * 2002-01-13 2003-07-22 Tsunetaka Yokoyama Method of manufacturing and using bag made of synthetic resin and paper having titanium oxide and ceramic powder bonded thereon
JP2006115701A (en) * 2004-10-19 2006-05-11 Achilles Corp Maturing sheet for fruit
JP2010063418A (en) * 2008-09-12 2010-03-25 Oji Paper Co Ltd Base paper for fruit bag
CN102174787A (en) * 2010-12-27 2011-09-07 山东营养源食品科技有限公司 Preservative paper for potatoes and preparation method thereof
CN102277785A (en) * 2011-08-24 2011-12-14 陕西科技大学 Method for producing external bag paper of apple cultivating bag by coating process
CN106962077A (en) * 2017-03-20 2017-07-21 杨小兵 A kind of environmental protection and energy saving apple cultivates bag and preparation method thereof
CN108193557A (en) * 2017-12-19 2018-06-22 浙江锦旺新材料科技有限公司 A kind of high temperature heat-resistant transfer paper
CN109588175A (en) * 2019-01-30 2019-04-09 浙江鑫丰特种纸业股份有限公司 A method of preparing low basis weight fruit bag outer bag paper
JP2019157317A (en) * 2018-03-16 2019-09-19 リンテック株式会社 Fruit bag paper and fruit bag

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003205968A (en) * 2002-01-13 2003-07-22 Tsunetaka Yokoyama Method of manufacturing and using bag made of synthetic resin and paper having titanium oxide and ceramic powder bonded thereon
JP2006115701A (en) * 2004-10-19 2006-05-11 Achilles Corp Maturing sheet for fruit
JP2010063418A (en) * 2008-09-12 2010-03-25 Oji Paper Co Ltd Base paper for fruit bag
CN102174787A (en) * 2010-12-27 2011-09-07 山东营养源食品科技有限公司 Preservative paper for potatoes and preparation method thereof
CN102277785A (en) * 2011-08-24 2011-12-14 陕西科技大学 Method for producing external bag paper of apple cultivating bag by coating process
CN106962077A (en) * 2017-03-20 2017-07-21 杨小兵 A kind of environmental protection and energy saving apple cultivates bag and preparation method thereof
CN108193557A (en) * 2017-12-19 2018-06-22 浙江锦旺新材料科技有限公司 A kind of high temperature heat-resistant transfer paper
JP2019157317A (en) * 2018-03-16 2019-09-19 リンテック株式会社 Fruit bag paper and fruit bag
CN109588175A (en) * 2019-01-30 2019-04-09 浙江鑫丰特种纸业股份有限公司 A method of preparing low basis weight fruit bag outer bag paper

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