CN109162149A - A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide - Google Patents
A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide Download PDFInfo
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- CN109162149A CN109162149A CN201810789753.3A CN201810789753A CN109162149A CN 109162149 A CN109162149 A CN 109162149A CN 201810789753 A CN201810789753 A CN 201810789753A CN 109162149 A CN109162149 A CN 109162149A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
-
- 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
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
- D21H11/04—Kraft or sulfate pulp
-
- 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
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- 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
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/13—Silicon-containing compounds
-
- 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
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
-
- 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
- D21H17/675—Oxides, hydroxides or carbonates
-
- 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
- D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
- D21H27/38—Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
Abstract
The production method of the invention discloses a kind of super-hydrophobic compound corrugated case based on nano-titanium dioxide, the method that chitosan and modified nano-titanium dioxide carry out LBL self-assembly is respectively adopted in kraft pulp fiber first and constructs multilayer film in fiber surface, as the number of plies is more, chitosan/nano-titanium dioxide end is also increased on kraft fibers surface, paper fibre be gradually modified titanium dioxide covering, due to modified, with good hydrophobic performance, it is gradually increased with water contact angle, by traditional paper technology, and high-temperature heat treatment, the brown paper of available super hydrophobic surface；This brown paper is bonded with ultra-thin press polish brown paper using molten polyethylene, not only act as cementation, it is kraft compounded by two layers, more importantly the binder forms thin film, thus further improve it is compound after waterproof, moisture-proof, barrier property, Punctured Strength, the pop strength of overlay paper etc..
Description
Technical field
The present invention relates to corrugated case technical fields more particularly to a kind of super-hydrophobic compound based on nano-titanium dioxide
The production method of corrugated case.
Background technique
Corrugated case is prepared by materials such as corrugated board, waxing corrugated boards, is to have certain rigidity, intensity
Packing container.Corrugated case has that light weight, cost performance are high, structural behaviour is good, foldable, printing adaptability is strong, environmental protection can return
The advantages that receipts and suitable automatic packaging operation, becomes so far often
With not waning, developing swift and violent paper packaging container, it is one of most important a kind of packaged form in modern packaging, accords with simultaneously
Close the theory of current China's Green Development.
Due to the development of logistic industry, the circulation of various product is accelerated, waterproof and dampproof carton is mainly used in freezing food
The fresh-keeping transport of product and the product for needing preservation by low temperature, fresh fruit vegetables also can be used, what the transport of these products used
Corrugated case needs to have good waterproof performance while having good strength.Traditional waterproof corrugated case is needed in paper
Case surface forms waterproof layer, and there are many method for applying waterproofing agent at present.1. installing a masking liquid additional on corrugated board process line
Slot directly applies one layer using wax and rosin as " the water-sprinkling agent " of main material on the surface of cardboard；2. being coated with coating machine, in entire volume original
Paper surface applies the acrylic type water-proof coating (food-grade) of upper inlet.Although the problem of being able to solve waterproof, coating is used
Problem, it is not environmentally friendly enough, be not suitable for directly contacting food consumption, this just need to think method in the corrugated case of food consumption into
The certain technological innovation of row.
Summary of the invention
The object of the invention is to remedy the disadvantages of known techniques, provides a kind of based on the super-hydrophobic of nano-titanium dioxide
The production method of compound corrugated case.
The present invention is achieved by the following technical solutions:
A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide, comprising the following specific steps
(1) it disperses over dry kraft pulp in certain proportion in the chitosan solution that concentration is 1g/L, slow-speed of revolution magnetic force stirs
It mixes to form fibrous suspension, after stirring 20-30 minutes, is filtered with Buchner funnel, obtained fiber is rinsed with ultrapure water
2-3 times；
(2) step (1) fiber that obtains that treated is distributed to concentration according to ratio same as step (1) is changing for 2g/L
Property nanometer titanium dioxide titanium solution in, low speed magnetic agitation is divided after continuing stirring 20-30 minute with Buchner funnel at fibrous suspension
From above-mentioned fibrous suspension, the fiber isolated ultrapure water is rinsed 2-3 times, the kraft pulp of secondary overlay film is obtained；
(3) step (1) and step (2) n times are repeated, surface covering N layers of chitosan/modified nano-titanium dioxide multilayer film is obtained
Paper pulp fiber prepares modified kraft according to the step of conventional brown paper growth, by obtained modified kraft in certain temperature
This modified kraft is finally processed on dedicated multiple paper machine using adhesive compound by the lower heat treatment of degree with ultra-thin press polish ox-hide
Paper pays attention to the usage amount of adhesive, and corrugated board surface layer dedicated paper is made；
(4) distinguish according to corrugated board surface layer dedicated paper → core paper reel layer paper → corrugated board surface layer dedicated paper sequence
It is put on base paper roll stand, each paper web is preheated by preheater respectively, and reel layer paper adjusts moisture through preregulator, then enters list after pressing
Face machine, through upper lower corrugated roller press it is stupefied, be coated with adhesive after bonded with corrugated board surface layer dedicated paper, into two-sided unit
Drying device bonds drying, obtains corrugated board；
(5) cardboard is transmitted on cutting machine and cuts into required size, and cardboard after the completion is transmitted on printing machine, selected
Then ink is transferred on cardboard by picture and text printing plate using offset press, and with ultraviolet light irradiation spare, the same time control that dries up ink
The cardboard for completing printing is transmitted on intelligent folding machine and folds, is re-fed on die-cutting machine and is die-cut to by the temperature of seal carving brush
The carton of client's specified size, specification.
A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide, described in step (1) with
Certain ratio dispersion refers to that every 5 grams of over dry kraft pulps are scattered in 1 liter of concentration for the ratio in the chitosan solution of 1g/L
Dispersed.
A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide, step change described in (2)
Property titania solution, it is specific the preparation method comprises the following steps: proper amount of nano titanium dioxide granule is dissolved in the ethanol/water system of 9:1, use
Acetic acid regulation system pH is 4-5, and temperature is set as 70-80 DEG C, with 450-500 revs/min of speed revolving speed, stirs 4-5 hours, delays
It is slow that the hexadecyl trimethoxy silane solution that concentration is 15% is added dropwise into dehydrated alcohol system；End to the reaction time, to body
System is centrifuged, and modifying titanium dioxide is taken to precipitate, and carries out 2-3 purifying, centrifugation using ethyl alcohol, last product is small by 24
When, 60 DEG C of dryings are dissolved in suitable quantity of water, obtain the modified nano-titanium dioxide solution that concentration is 2g/L.
A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide, N described in step (3)
It is secondary, refer to 40-60 times, N layers, refers to 40-60 layers.
A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide, described in step (3)
It is heat-treated under certain temperature, refers to and be heat-treated 30 minutes at 160 DEG C.
A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide is glued described in step (3)
Mixture refers to the polyethylene of melting, and usage amount is 16g/ ㎡.
A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide, control described in step (5)
The temperature of seal carving brush refers to 20-25 DEG C of temperature control.
The invention has the advantages that first chitosan and modified nanometer is respectively adopted in kraft pulp fiber by the present invention
The method that titanium dioxide carries out LBL self-assembly constructs multilayer film, as the number of plies is more, chitosan/nano-silica in fiber surface
Change titanium end also increased on kraft fibers surface, paper fibre be gradually modified titanium dioxide covering, due to modified original
Cause has good hydrophobic performance, is gradually increased with water contact angle, can by traditional paper technology and high-temperature heat treatment
To obtain the brown paper of super hydrophobic surface；This brown paper is bonded with ultra-thin press polish brown paper using molten polyethylene, no
Cementation is only played, it is kraft compounded by two layers, it is often more important that the binder forms thin film, so further
Improve it is compound after waterproof, moisture-proof, barrier property, Punctured Strength, the pop strength of overlay paper etc.；Made by the present invention watt
Stupefied carton is made by the brown paper of specially treated, substantially increases the structural strength of corrugated case, long service life, while by
In the formation of super hydrophobic surface and waterproof layer, safety and environmental protection can satisfy the transportation demands such as aquatic products, vegetables and fruits, and technological design is closed
Reason, consumable quantity is low, is worthy to be popularized.
Specific embodiment
A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide, including walk in detail below
It is rapid:
(1) dispersion of the ratio in 1 liter of chitosan solution is dispersed according to every 5 grams of over dry kraft pulps by appropriate over dry kraft pulp
In the chitosan solution that concentration is 1g/L, slow-speed of revolution magnetic agitation forms fibrous suspension, and stirring after twenty minutes, is leaked with Bu Shi
Bucket is filtered, and obtained fiber ultrapure water is rinsed 2 times；
(2) step (1) fiber that obtains that treated is distributed to concentration according to ratio same as step (1) is changing for 2g/L
Property nanometer titanium dioxide titanium solution in, low speed magnetic agitation continues stirring and is separated after twenty minutes with Buchner funnel at fibrous suspension
The fiber isolated ultrapure water is rinsed 2 times, obtains the kraft pulp of secondary overlay film by above-mentioned fibrous suspension；
(3) step (1) and step (2) 40 times are repeated, surface covering 40 layers of chitosan/modified nano-titanium dioxide multilayer film is obtained
Paper pulp fiber, according to conventional brown paper grow the step of prepare modified kraft, by obtained modified kraft at 160 DEG C
Lower heat treatment 30 minutes is finally made this modified kraft and ultra-thin press polish ox-hide on dedicated multiple paper machine using molten polyethylene
It is processed into extrusion coating paper for adhesive, the usage amount of adhesive is 16g/ ㎡, and corrugated board surface layer dedicated paper is made；
(4) distinguish according to corrugated board surface layer dedicated paper → core paper reel layer paper → corrugated board surface layer dedicated paper sequence
It is put on base paper roll stand, each paper web is preheated by preheater respectively, and reel layer paper adjusts moisture through preregulator, then enters list after pressing
Face machine, through upper lower corrugated roller press it is stupefied, be coated with adhesive after bonded with corrugated board surface layer dedicated paper, into two-sided unit
Drying device bonds drying, obtains corrugated board；
(5) cardboard is transmitted on cutting machine and cuts into required size, and cardboard after the completion is transmitted on printing machine, selected
Then ink is transferred on cardboard by picture and text printing plate using offset press, and with ultraviolet light irradiation spare, the same time control that dries up ink
The cardboard for completing printing is transmitted on intelligent folding machine and folds, is re-fed into die-cutting machine upper mold by 20 DEG C of the temperature of seal carving brush
It is cut into the carton of client's specified size, specification.
A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide, step change described in (2)
Property titania solution, it is specific the preparation method comprises the following steps: proper amount of nano titanium dioxide granule is dissolved in the ethanol/water system of 9:1, use
Acetic acid regulation system pH is 4, and temperature is set as 70 DEG C, with 450 revs/min of speed revolving speed, stirs 4 hours, concentration is slowly added dropwise
For 15% hexadecyl trimethoxy silane solution into dehydrated alcohol system；To the reaction time end, to system carry out from
The heart takes modifying titanium dioxide to precipitate, and carries out 2 purifying, centrifugation using ethyl alcohol, and last product passes through 24 hours, 60 DEG C of dryings,
It is dissolved in suitable quantity of water, obtains the modified nano-titanium dioxide solution that concentration is 2g/L.
Claims (7)
1. a kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide, which is characterized in that including with
Lower specific steps:
(1) it disperses over dry kraft pulp in certain proportion in the chitosan solution that concentration is 1g/L, slow-speed of revolution magnetic force stirs
It mixes to form fibrous suspension, after stirring 20-30 minutes, is filtered with Buchner funnel, obtained fiber is rinsed with ultrapure water
2-3 times；
(2) step (1) fiber that obtains that treated is distributed to concentration according to ratio same as step (1) is changing for 2g/L
Property nanometer titanium dioxide titanium solution in, low speed magnetic agitation is divided after continuing stirring 20-30 minute with Buchner funnel at fibrous suspension
From above-mentioned fibrous suspension, the fiber isolated ultrapure water is rinsed 2-3 times, the kraft pulp of secondary overlay film is obtained；
(3) step (1) and step (2) n times are repeated, surface covering N layers of chitosan/modified nano-titanium dioxide multilayer film is obtained
Paper pulp fiber prepares modified kraft according to the step of conventional brown paper growth, by obtained modified kraft in certain temperature
This modified kraft is finally processed on dedicated multiple paper machine using adhesive compound by the lower heat treatment of degree with ultra-thin press polish ox-hide
Paper pays attention to the usage amount of adhesive, and corrugated board surface layer dedicated paper is made；
(4) distinguish according to corrugated board surface layer dedicated paper → core paper reel layer paper → corrugated board surface layer dedicated paper sequence
It is put on base paper roll stand, each paper web is preheated by preheater respectively, and reel layer paper adjusts moisture through preregulator, then enters list after pressing
Face machine, through upper lower corrugated roller press it is stupefied, be coated with adhesive after bonded with corrugated board surface layer dedicated paper, into two-sided unit
Drying device bonds drying, obtains corrugated board；
(5) cardboard is transmitted on cutting machine and cuts into required size, and cardboard after the completion is transmitted on printing machine, selected
Then ink is transferred on cardboard by picture and text printing plate using offset press, and with ultraviolet light irradiation spare, the same time control that dries up ink
The cardboard for completing printing is transmitted on intelligent folding machine and folds, is re-fed on die-cutting machine and is die-cut to by the temperature of seal carving brush
The carton of client's specified size, specification.
2. a kind of producer of super-hydrophobic compound corrugated case based on nano-titanium dioxide according to claim 1
Method, which is characterized in that dispersion in certain proportion described in step (1) refers to that every 5 grams of over dry kraft pulps are scattered in 1 liter
Concentration is that the ratio in the chitosan solution of 1g/L is dispersed.
3. a kind of producer of super-hydrophobic compound corrugated case based on nano-titanium dioxide according to claim 1
Method, which is characterized in that modifying titanium dioxide solution described in step (2), specifically the preparation method comprises the following steps: by proper amount of nano titanium dioxide
Particle is dissolved in the ethanol/water system of 9:1, is 4-5 with acetic acid regulation system pH, temperature is set as 70-80 DEG C, with 450-500
Rev/min speed revolving speed, stir 4-5 hour, it is 15% hexadecyl trimethoxy silane solution to anhydrous that concentration, which is slowly added dropwise,
In ethanol system；End to the reaction time, system is centrifuged, modifying titanium dioxide is taken to precipitate, is carried out 2-3 times using ethyl alcohol
Purifying, centrifugation, last product pass through 24 hours, and 60 DEG C of dryings are dissolved in suitable quantity of water, obtain the modified Nano that concentration is 2g/L
Titania solution.
4. a kind of producer of super-hydrophobic compound corrugated case based on nano-titanium dioxide according to claim 1
Method, which is characterized in that n times described in step (3) refer to 40-60 times, N layers, refer to 40-60 layers.
5. a kind of producer of super-hydrophobic compound corrugated case based on nano-titanium dioxide according to claim 1
Method, which is characterized in that heat treatment at a certain temperature described in step (3) refers to and is heat-treated 30 minutes at 160 DEG C.
6. a kind of producer of super-hydrophobic compound corrugated case based on nano-titanium dioxide according to claim 1
Method, which is characterized in that adhesive described in step (3) refers to the polyethylene of melting, and usage amount is 16g/ ㎡.
7. a kind of producer of super-hydrophobic compound corrugated case based on nano-titanium dioxide according to claim 1
Method, which is characterized in that the temperature of control printing described in step (5) refers to 20-25 DEG C of temperature control.
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| CN201810789753.3A CN109162149A (en) | 2018-07-18 | 2018-07-18 | A kind of production method of the super-hydrophobic compound corrugated case based on nano-titanium dioxide |
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Cited By (4)
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| CN111455730A (en) * | 2020-04-29 | 2020-07-28 | 青岛玉竹叶纸品科技有限责任公司 | Antibacterial kraft paper and preparation method thereof |
| CN113389081A (en) * | 2021-06-15 | 2021-09-14 | 黔南高新区绿色化工技术研究院有限公司 | Composite hybrid material modified calcium sulfate whisker, preparation method thereof and application thereof in papermaking |
| CN115726216A (en) * | 2022-11-29 | 2023-03-03 | 中国民用航空飞行学院 | Super-hydrophobic paper mulching film and preparation method and application thereof |
| CN116409009A (en) * | 2023-04-20 | 2023-07-11 | 武汉众望包装有限公司 | Production method of super-hydrophobic composite corrugated carton based on nano titanium dioxide |
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| CN113389081A (en) * | 2021-06-15 | 2021-09-14 | 黔南高新区绿色化工技术研究院有限公司 | Composite hybrid material modified calcium sulfate whisker, preparation method thereof and application thereof in papermaking |
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Application publication date: 20190108 |