CN113756122B - Corrugated paper technology for reducing surface glue spreading - Google Patents
Corrugated paper technology for reducing surface glue spreading Download PDFInfo
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- CN113756122B CN113756122B CN202110879166.5A CN202110879166A CN113756122B CN 113756122 B CN113756122 B CN 113756122B CN 202110879166 A CN202110879166 A CN 202110879166A CN 113756122 B CN113756122 B CN 113756122B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/32—Defibrating by other means of waste paper
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- 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
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
-
- 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
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
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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
- 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
-
- 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
- D21H17/28—Starch
-
- 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
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/35—Polyalkenes, e.g. polystyrene
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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
- 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
- D21H17/68—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
- D21H19/80—Paper comprising more than one coating
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
-
- 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
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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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the technical field of corrugated paper, in particular to a corrugated paper process for reducing surface glue spreading, which comprises the following steps: obtaining papermaking slurry; preparing a surface sizing agent; forming, dehydrating and drying the corrugated base paper to obtain corrugated base paper; sizing the upper and lower surfaces of the corrugated base paper at one time and drying; secondarily sizing and drying the upper and lower surfaces of the corrugated base paper; the sizing on the surface of the corrugated base paper is carried out simultaneously on two sides, the sizing speed is high, the production time of the corrugated base paper can be shortened, the production efficiency is improved, the ring crush strength of the corrugated base paper can be improved through the sizing agent, the flexibility after film formation is good, and the situation of surface sizing of the corrugated base paper can be reduced; and the surface of the original sizing agent layer is coated with the wear-resistant adhesive layer, so that the invention is more wear-resistant compared with the conventional corrugated base paper, and the situation of glue opening caused by wear is less.
Description
Technical Field
The invention relates to the technical field of corrugated paper, in particular to a corrugated paper technology for reducing surface glue spreading.
Background
The corrugated base paper is one of important constituent materials for producing corrugated boards, and is required to have good fiber bonding strength, flat paper surface, good tightness and stiffness and certain elasticity so as to ensure that the produced paper box has shockproof and pressure-resistant capabilities.
In the prior art, when corrugated base paper is produced, the surface of the corrugated base paper is glued, so that the surface strength and the waterproof performance of the corrugated base paper are improved, but in the prior art, in the use process, if bending or friction is carried out, the adhesive layer on the surface of the corrugated base paper is easy to crack, and water is easy to permeate into the corrugated base paper from the crack of the adhesive layer, so that the strength of the corrugated base paper is reduced, and the corrugated base paper is easy to crack.
Disclosure of Invention
The invention aims to provide a corrugated paper process for reducing surface glue spreading, and aims to solve the problems in the background technology.
The invention is realized in such a way that the corrugated paper technology for reducing the surface glue spreading comprises the following steps:
step S1, pulping waste paper or wood, and deslagging the pulp to obtain papermaking pulp;
s2, adding lithium chloride into the cellulose solution, stirring uniformly, adding a catalyst, reacting for 2-3 hours, adjusting the pH value to 6-8 to obtain a modified solution, adding modified starch and a cross-linking agent into the modified solution, stirring uniformly, heating to 80-95 ℃, and keeping for 1-2 hours to obtain a surface sizing agent for later use;
s3, forming the papermaking slurry, and sequentially dehydrating and drying to obtain corrugated base paper;
step S4, feeding corrugated medium paper between an upper glue spreader and a lower glue spreader through a conveying device, wherein the two upper glue spreader are arranged side by side, a glue dripping head is arranged above the space between the two upper glue spreader, the surface sizing agent obtained in the step S2 is dripped between the two upper glue spreader along the glue dripping head and smeared on the upper surface of the passing corrugated medium paper under the rotation of the two upper glue spreader, one lower glue spreader is arranged, a glue receiving disc is arranged below the lower glue spreader, the surface sizing agent obtained in the step S2 is arranged in the glue receiving disc, the surface sizing agent in the glue receiving disc is adhered when the lower glue spreader rotates, and smeared on the lower surface of the corrugated medium paper, so that the glue application of the upper surface and the lower surface of the corrugated medium paper is finished simultaneously, the glue application amount of the upper surface and the lower surface of the corrugated medium paper is controlled to be 10-15 g/-square meter, and then the glued corrugated medium paper is fed to be dried;
and S5, respectively coating a layer of wear-resistant glue on the upper surface and the lower surface of the corrugated base paper obtained in the step S4, wherein the glue coating mode is the same as that of the step S4, the coating amount of the wear-resistant glue is controlled to be 10-15 g/square meter, and finally, the corrugated base paper subjected to secondary glue coating is sent to be dried.
Further, the device used for pulping in the step S1 is a hydropulper.
Further, the wood used in the step S1 is fir or pine.
Still further, the deslagging treatment in the step S1 further includes: and sequentially feeding the pulp into a coarse screening device, a fine screening device and a sand removing device for coarse screening, fine screening and sand removing treatment, and pulping to obtain papermaking pulp.
Further, after the primary pulp for paper making is obtained in the step S1, the method further includes: silica, vinyl acetate and polyethylene fibers were added to the papermaking stock and stirred well.
Further, the modified starch used in the step S2 is one or more of oxidized starch, cationic starch and enzymatically converted starch.
Further, the crosslinking agent used in the step S2 is one or more of citric acid, aluminum citrate, and polymaleic acid.
Further, the composition of the abrasion-resistant glue in the step S5 includes: neoprene latex, emulsified asphalt, deionized water and a silane coupling agent.
Compared with the prior art, the invention has the beneficial effects that: the sizing agent adopted can not only improve the ring pressure strength of the corrugated base paper, but also has good flexibility after film formation, and can reduce the situation of glue opening on the surface of the corrugated base paper; and the surface of the original sizing agent layer is coated with the wear-resistant adhesive layer, so that the invention is more wear-resistant compared with the conventional corrugated base paper, and the situation of glue opening caused by wear is less.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The implementation of the present invention will be described in detail below with reference to specific embodiments.
Example 1
A corrugated paper process for reducing surface glue spreading comprises the following steps:
step S1, pulping waste paper, pine or fir and other wood by a hydraulic pulper, deslagging the pulp, sequentially feeding the pulp into a coarse screening device, a fine screening device and a sand removing device for coarse screening, fine screening and sand removing treatment, pulping to obtain papermaking pulp, and adding silicon dioxide, vinyl acetate and polyethylene fibers into the papermaking primary pulp and uniformly stirring;
s2, adding lithium chloride into a cellulase solution, stirring uniformly, adding a catalyst, reacting for 2 hours, adjusting the pH value to 6 to obtain a modified solution, adding modified starch and a cross-linking agent into the modified solution, stirring uniformly, heating to 80 ℃ and keeping for 2 hours to obtain a surface sizing agent for later use;
and S3, forming the papermaking slurry, and sequentially dehydrating and drying to obtain the corrugated base paper.
Step S4, the corrugated base paper is sent between an upper glue spreader I and a lower glue spreader I through a conveying device, the upper glue spreader I is provided with two upper glue spreader I, two glue dripping heads are arranged above the two upper glue spreader I, the surface sizing agent obtained in the step S2 is dripped between the two upper glue spreader I along the glue dripping heads and smeared on the upper surface of the passing corrugated base paper under the rotation of the two upper glue spreader I, the lower glue spreader I is provided with one glue receiving disc I below the lower glue spreader I, the surface sizing agent obtained in the step S2 is arranged in the glue receiving disc I, the surface sizing agent in the glue receiving disc I is adhered when the lower glue spreader I rotates and smeared on the lower surface of the corrugated base paper, so that the sizing of the upper surface and the lower surface of the corrugated base paper is completed simultaneously, the sizing amount of the upper surface and the lower surface of the corrugated base paper is controlled to be 15 g/-square meter, and then the glued corrugated base paper is sent; because the sizing on the surface of the corrugated base paper is carried out simultaneously on two sides, the sizing speed is high, the production time of the corrugated base paper can be shortened, the production efficiency is improved, the ring crush strength of the corrugated base paper can be improved through the sizing agent, the flexibility after film formation is good, and the situation of surface sizing of the corrugated base paper can be reduced.
And S5, conveying the corrugated medium obtained in the step S4 to a position between an upper glue spreader II and a lower glue spreader II through a conveying device, wherein the upper glue spreader II is provided with two upper glue spreader II, the two upper glue spreader II is arranged side by side, a glue dripping head is arranged above the position between the two upper glue spreader II, the wear-resistant glue drips between the two upper glue spreader II along the glue dripping head and is smeared on the upper surface of the passing corrugated medium under the rotation of the two upper glue spreader II, the lower glue spreader II is provided with one glue receiving disc arranged below the lower glue spreader II, the wear-resistant glue in the attached glue disc is arranged in the glue receiving disc II, and is smeared on the lower surface of the corrugated medium when the lower glue spreader II rotates, so that the wear-resistant layer gluing of the upper surface and the lower surface of the corrugated medium is finished simultaneously, the gluing amount of the upper surface and the lower surface of the corrugated medium is controlled to be 15 g/square, and finally, the corrugated medium after the secondary gluing is sent to be dried. Because the sizing on the surface of the corrugated base paper is carried out on two sides simultaneously, the sizing speed is high, the production time of the corrugated base paper can be shortened, the production efficiency is improved, and compared with the conventional corrugated base paper, the surface of the original sizing agent layer is coated with the wear-resistant adhesive layer, the invention has the advantages of more wear resistance and less glue opening caused by wear.
Wherein the modified starch used in the step S2 is one or more of oxidized starch, cationic starch and enzyme converted starch. The cross-linking agent used in the step S2 is one or more of citric acid, aluminum citrate and polymaleic acid. The abrasion-resistant adhesive in the step S5 comprises the following components: neoprene latex, emulsified asphalt, deionized water and a silane coupling agent.
Example two
A corrugated paper process for reducing surface glue spreading comprises the following steps:
step S1, pulping waste paper, pine or fir and other wood by a hydraulic pulper, deslagging the pulp, sequentially feeding the pulp into a coarse screening device, a fine screening device and a sand removing device for coarse screening, fine screening and sand removing treatment, pulping to obtain papermaking pulp, and adding silicon dioxide, vinyl acetate and polyethylene fibers into the papermaking primary pulp and uniformly stirring;
s2, adding lithium chloride into the cellulose solution, stirring uniformly, adding a catalyst, reacting for 2 hours, adjusting the pH value to 8 to obtain a modified solution, adding modified starch and a cross-linking agent into the modified solution, stirring uniformly, heating to 95 ℃, and keeping for 1 hour to obtain a surface sizing agent for later use;
and S3, forming the papermaking slurry, and sequentially dehydrating and drying to obtain the corrugated base paper.
Step S4, the corrugated base paper is sent between an upper glue spreader I and a lower glue spreader I through a conveying device, the upper glue spreader I is provided with two upper glue spreader I, two glue dripping heads are arranged above the two upper glue spreader I, the surface sizing agent obtained in the step S2 is dripped between the two upper glue spreader I along the glue dripping heads and smeared on the upper surface of the passing corrugated base paper under the rotation of the two upper glue spreader I, the lower glue spreader I is provided with one glue receiving disc I below the lower glue spreader I, the surface sizing agent obtained in the step S2 is arranged in the glue receiving disc I, the surface sizing agent in the glue receiving disc I is adhered when the lower glue spreader I rotates and smeared on the lower surface of the corrugated base paper, so that the sizing of the upper surface and the lower surface of the corrugated base paper is completed simultaneously, the sizing amount of the upper surface and the lower surface of the corrugated base paper is controlled to be 10 g/-square meter, and then the glued corrugated base paper is sent; because the sizing on the surface of the corrugated base paper is carried out simultaneously on two sides, the sizing speed is high, the production time of the corrugated base paper can be shortened, the production efficiency is improved, the ring crush strength of the corrugated base paper can be improved through the sizing agent, the flexibility after film formation is good, and the situation of surface sizing of the corrugated base paper can be reduced.
And S5, conveying the corrugated medium obtained in the step S4 to a position between an upper glue spreader II and a lower glue spreader II through a conveying device, wherein the upper glue spreader II is provided with two upper glue spreader II, the two upper glue spreader II is arranged side by side, a glue dripping head is arranged above the position between the two upper glue spreader II, the wear-resistant glue drips between the two upper glue spreader II along the glue dripping head and is smeared on the upper surface of the passing corrugated medium under the rotation of the two upper glue spreader II, the lower glue spreader II is provided with one glue receiving disc arranged below the lower glue spreader II, the wear-resistant glue in the attached glue disc is arranged in the glue receiving disc II, and is smeared on the lower surface of the corrugated medium when the lower glue spreader II rotates, so that the wear-resistant layer gluing of the upper surface and the lower surface of the corrugated medium is finished simultaneously, the gluing amount of the upper surface and the lower surface of the corrugated medium is controlled to be 10 g/square, and finally, the corrugated medium after the secondary gluing is sent to be dried. Because the sizing on the surface of the corrugated base paper is carried out on two sides simultaneously, the sizing speed is high, the production time of the corrugated base paper can be shortened, the production efficiency is improved, and compared with the conventional corrugated base paper, the surface of the original sizing agent layer is coated with the wear-resistant adhesive layer, the invention has the advantages of more wear resistance and less glue opening caused by wear.
Wherein the modified starch used in the step S2 is one or more of oxidized starch, cationic starch and enzyme converted starch. The cross-linking agent used in the step S2 is one or more of citric acid, aluminum citrate and polymaleic acid. The abrasion-resistant adhesive in the step S5 comprises the following components: neoprene latex, emulsified asphalt, deionized water and a silane coupling agent.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The corrugated paper process for reducing surface glue spreading is characterized by comprising the following steps of:
step S1, pulping waste paper or wood, and deslagging the pulp to obtain papermaking pulp;
s2, adding lithium chloride into the cellulose solution, stirring uniformly, adding a catalyst, reacting for 2-3 hours, adjusting the pH value to 6-8 to obtain a modified solution, adding modified starch and a cross-linking agent into the modified solution, stirring uniformly, heating to 80-95 ℃, and keeping for 1-2 hours to obtain a surface sizing agent for later use;
s3, forming the papermaking slurry, and sequentially dehydrating and drying to obtain corrugated base paper;
step S4, feeding corrugated medium paper between an upper glue spreader and a lower glue spreader through a conveying device, wherein the two upper glue spreader are arranged side by side, a glue dripping head is arranged above the space between the two upper glue spreader, the surface sizing agent obtained in the step S2 is dripped between the two upper glue spreader along the glue dripping head and smeared on the upper surface of the passing corrugated medium paper under the rotation of the two upper glue spreader, one lower glue spreader is arranged, a glue receiving disc is arranged below the lower glue spreader, the surface sizing agent obtained in the step S2 is arranged in the glue receiving disc, the surface sizing agent in the glue receiving disc is smeared on the lower surface of the corrugated medium paper when the lower glue spreader rotates, thereby finishing the sizing of the upper surface and the lower surface of the corrugated medium paper simultaneously, and the sizing amount of the upper surface and the lower surface of the corrugated medium paper is controlled to be 10-15g/m 2 Then the corrugated base paper after being glued is sent to be dried;
step S5, coating a layer of wear-resistant glue on the upper surface and the lower surface of the corrugated base paper obtained in the step S4 respectively, wherein the glue coating mode is the same as that of the step S4, and the coating amount of the wear-resistant glue is controlled to be 10-15g/m 2 And finally, the corrugated base paper subjected to secondary gluing is sent to be dried.
2. The corrugated paper process for reducing surface sizing according to claim 1, wherein the device used for pulping in the step S1 is a hydropulper.
3. The corrugated paper process for reducing surface sizing according to claim 2, wherein the wood used in the step S1 is fir or pine.
4. The corrugated paper process for reducing surface sizing according to claim 1, wherein the deslagging treatment in step S1 further comprises: and sequentially feeding the pulp into a coarse screening device, a fine screening device and a sand removing device for coarse screening, fine screening and sand removing treatment, and pulping to obtain papermaking pulp.
5. The process for manufacturing corrugated paper with reduced surface sizing as recited in claim 4, wherein after the step S1 of obtaining the papermaking primary pulp, further comprising: silica, vinyl acetate and polyethylene fibers were added to the papermaking stock and stirred well.
6. The process for manufacturing corrugated paper with reduced surface sizing according to claim 1, wherein the modified starch used in the step S2 is one or more of oxidized starch, cationic starch and enzymatically converted starch.
7. The process for manufacturing corrugated paper with reduced surface sizing according to claim 1, wherein the cross-linking agent used in the step S2 is one or more of citric acid, aluminum citrate, polymaleic acid.
8. The corrugated paper process for reducing surface sizing according to claim 1, wherein the composition of the abrasion resistant glue in step S5 comprises: neoprene latex, emulsified asphalt, deionized water and a silane coupling agent.
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| CN202110879166.5A CN113756122B (en) | 2021-07-30 | 2021-07-30 | Corrugated paper technology for reducing surface glue spreading |
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| CN202110879166.5A CN113756122B (en) | 2021-07-30 | 2021-07-30 | Corrugated paper technology for reducing surface glue spreading |
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| CN113756122B true CN113756122B (en) | 2024-03-19 |
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| CN114808551A (en) * | 2022-04-28 | 2022-07-29 | 宝艺新材料股份有限公司 | Preparation process of high-strength alkali-resistant corrugated board |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005248417A (en) * | 1996-02-29 | 2005-09-15 | Oji Paper Co Ltd | Paper manufacturing method |
| JP2009293138A (en) * | 2008-06-03 | 2009-12-17 | Daio Paper Corp | Method for producing core base paper for corrugated board |
| CN111826991A (en) * | 2020-08-11 | 2020-10-27 | 东莞顺裕纸业有限公司 | Production process of high-strength corrugated paper |
| CN112458791A (en) * | 2020-12-08 | 2021-03-09 | 马鞍山市康辉纸箱纸品有限公司 | Corrugated paper processing technology for improving easy glue opening of corrugated paper surface sizing agent |
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2021
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| CN112458791A (en) * | 2020-12-08 | 2021-03-09 | 马鞍山市康辉纸箱纸品有限公司 | Corrugated paper processing technology for improving easy glue opening of corrugated paper surface sizing agent |
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