CN113463442A - High-strength corrugated carton and production method thereof - Google Patents
High-strength corrugated carton and production method thereof Download PDFInfo
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- CN113463442A CN113463442A CN202110653423.3A CN202110653423A CN113463442A CN 113463442 A CN113463442 A CN 113463442A CN 202110653423 A CN202110653423 A CN 202110653423A CN 113463442 A CN113463442 A CN 113463442A
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- corrugated
- wavy
- medium
- base paper
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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
- D21H27/30—Multi-ply
- D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
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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
- B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/08—Corrugated paper or cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
- B65D65/403—Applications of laminates for particular packaging purposes with at least one corrugated layer
-
- 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/04—4 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/26—All layers being made of paper or paperboard
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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
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Cartons (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
The invention relates to the technical field of carton preparation, in particular to a high-strength corrugated carton and a production method thereof. The high-strength corrugated case is prepared by adopting a reinforced corrugated board, and the reinforced corrugated board sequentially comprises outer-layer surface paper, first wavy corrugated base paper, second wavy corrugated base paper and inner-layer surface paper; the even interval in surface that the crest of first wave corrugated medium and second wave corrugated medium deviate from each other is provided with strengthens the long piece, the crest of first wave corrugated medium and the crest of second wave corrugated medium are in same vertical plane and the complete bonding together. The invention has the beneficial effects that: compared with the prior art, the reinforced corrugated board of the high-strength corrugated case saves interlayer paper between two layers of corrugated base paper, and improves the ratio of the compressive strength to the weight of the corrugated board by using the arrangement structure of the corrugated base paper after removing the interlayer paper.
Description
Technical Field
The invention relates to the technical field of carton preparation, in particular to a high-strength corrugated carton and a production method thereof.
Background
Corrugated paper boxes are ideal packaging containers, have the characteristics of light weight, firmness and vibration reduction, and are used for transport packaging and sale packaging for many years. Corrugated boxes have won the market with their elegant appearance and inherently superior quality. It not only protects the goods, is convenient for storage and transportation, but also beautifies the goods and publicizes the goods. With the continuous increase of market demand, the production scale of corrugated paper boxes is rapidly enlarged, and the market competition is increasingly severe, so that the manufacturing process of the corrugated paper boxes needs to be comprehensively researched.
At present, the commonly used corrugated board generally forms a three-layer corrugated board structure by outer surface paper on the upper surface and the lower surface and corrugated paper in the middle, has low strength and poor impact resistance, and limits the packaging and transportation of some special products. In order to improve strength and impact resistance, it is common to increase the number of corrugated layers to form a five-layer, seven-layer, or nine-layer structure. Because the thickness of the corrugated board is in direct proportion to the strength of the corrugated board. However, the method has limited effects of improving the strength and impact resistance of the corrugated board, not only wastes resources, but also reduces the packaging space.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a high-strength corrugated carton with impact resistance and cost saving and a production method thereof.
In order to solve the technical problems, the invention adopts the technical scheme that: provided is a high strength corrugated box comprising a bottom layer, side walls and a face layer; the bottom layer, the side wall and the surface layer are made of reinforced corrugated boards; the surfaces of the side walls, which are deviated from each other, are also provided with a supporting and reinforcing structure, the supporting and reinforcing structure comprises a partition board correspondingly attached to the inner side surface of the side wall, and a reinforcing rib in the vertical direction is also arranged between the partition board and the side wall;
the reinforced corrugated board sequentially comprises outer-layer surface paper, first wavy corrugated base paper, second wavy corrugated base paper and inner-layer surface paper;
the even interval in surface that the crest of first wave corrugated medium and second wave corrugated medium deviate from each other is provided with strengthens the long piece, strengthen the long piece and set up along the wave extending direction of corrugated medium, the shape of first wave corrugated medium and second wave corrugated medium is the same, the crest of first wave corrugated medium and the crest of second wave corrugated medium are in the same perpendicular and completely cohere together.
Another technical solution of the present invention is to provide a method for producing the high-strength corrugated paper box, including the steps of:
step S1, after reinforcing long sheets are arranged on the surfaces of the corrugated base papers, obtaining a first wavy corrugated base paper and a second wavy corrugated base paper by using a corrugating machine, respectively spraying adhesives on the first wavy corrugated base paper and the second wavy corrugated base paper, respectively adhering the first wavy corrugated base paper and the second wavy corrugated base paper to each other, and completely adhering the wave crests of the first wavy corrugated base paper and the wave crests of the second wavy corrugated base paper on the same vertical surface to obtain a reinforced corrugated board;
and step S2, performing die cutting, indentation and carton nailing/gluing on the reinforced corrugated board to obtain a corrugated carton, and then bonding reinforcing ribs and partition boards on the surfaces of the corrugated cartons, which are mutually deviated, to obtain the high-strength corrugated carton.
The invention has the beneficial effects that: compared with the prior art, the reinforced corrugated board of the high-strength corrugated case comprises two outer-layer surface papers and two middle layers of corrugated base paper, so that the interlayer paper between the two layers of corrugated base paper is saved, the effect of the interlayer paper based on the middle layer on the rigidity and the bending strength of the corrugated board is not large, and the ratio of the compressive strength to the weight of the reinforced corrugated board is improved by removing and using the arrangement structure of the corrugated base paper. Furthermore, the strength of the corrugated base paper is increased by utilizing the reinforcing long sheet, and the corrugated base paper can bear larger pressure and is not easy to deform by matching with a structure that wave crests of the wavy corrugated base paper are abutted, so that the compressive strength of the obtained corrugated board is 2-5 times that of a common corrugated board with the same thickness. The corrugated board of the high-strength corrugated case has relatively weak deformation resistance in the vertical direction, so the corrugated board is provided with the partition board and the reinforcing ribs, and due to the existence of the reinforcing ribs, the bearing in the vertical direction is enhanced, and a space is generated between the partition board and the side wall, so that the corrugated case further has good heavy buffering and shockproof effects.
Drawings
Fig. 1 is a schematic vertical cross-sectional view of reinforced corrugated cardboard according to an embodiment of the present invention;
description of reference numerals:
1. outer layer paper; 2. a first corrugated medium; 3. a second corrugated medium; 4. the inner layer is a piece of tissue.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a high-strength corrugated box includes a bottom layer, side walls and a surface layer; the bottom layer, the side wall and the surface layer are made of reinforced corrugated boards; the surfaces of the side walls, which are deviated from each other, are also provided with a supporting and reinforcing structure, the supporting and reinforcing structure comprises a partition board correspondingly attached to the inner side surface of the side wall, and a reinforcing rib in the vertical direction is also arranged between the partition board and the side wall;
the reinforced corrugated board sequentially comprises an outer surface paper 1, a first wavy corrugated base paper 2, a second wavy corrugated base paper 3 and an inner surface paper 4;
the even interval in surface that crest 2 of first wave corrugated medium and 3 corrugated medium of second deviate from each other is provided with strengthens the long piece, strengthen the long piece and set up along the wave extending direction of corrugated medium, the shape of first wave corrugated medium and second wave corrugated medium is the same, the crest of first wave corrugated medium and the crest of second wave corrugated medium are in the same perpendicular and completely cohere together.
Preferably, in the above-mentioned high strength corrugated container, baffle and strengthening rib are the craft paper.
Preferably, in the high-strength corrugated carton, the reinforcing long sheet is made of PVC.
The invention also provides a production method of the high-strength corrugated case, which comprises the following steps:
step S1, after reinforcing long sheets are arranged on the surfaces of the corrugated base papers, obtaining a first wavy corrugated base paper and a second wavy corrugated base paper by using a corrugating machine, respectively spraying adhesives on the first wavy corrugated base paper and the second wavy corrugated base paper, respectively adhering the first wavy corrugated base paper and the second wavy corrugated base paper to each other, and completely adhering the wave crests of the first wavy corrugated base paper and the wave crests of the second wavy corrugated base paper on the same vertical surface to obtain a reinforced corrugated board;
and step S2, performing die cutting, indentation and carton nailing/gluing on the reinforced corrugated board to obtain a corrugated carton, and then bonding reinforcing ribs and partition boards on the surfaces of the corrugated cartons, which are mutually deviated, to obtain the high-strength corrugated carton.
Preferably, in the above method for producing a high-strength corrugated cardboard box, the adhesive is prepared by uniformly mixing the following components in parts by weight: 1300 parts of pure water of 1000-.
Preferably, in the above method for producing a high-strength corrugated cardboard box, the step of obtaining the first corrugated medium and the second corrugated medium by using a corrugating machine after the reinforcing long sheet is provided on the surface of the corrugated medium includes: after the surface of the corrugated medium is provided with the reinforcing long sheet, the corrugated medium is subjected to pretreatment, moisture adjustment and ironing, and then is subjected to corrugating by using a corrugating machine to obtain first wavy corrugated medium and second wavy corrugated medium.
Preferably, in the above method for producing a high-strength corrugated cardboard box, the "spray adhesive" is specifically: spraying the adhesive on the two surfaces of the first wavy corrugated medium and the second wavy corrugated medium and one surface of the kraft paper by atomizing with a high-pressure atomizer, wherein the spraying amount per square meter is 0.03-0.05 kg.
Example 1
The production method of the high-strength corrugated case comprises the following steps:
step S1, after the reinforcing long sheet is arranged on the surface of the corrugated medium, the corrugated medium is subjected to pretreatment to adjust moisture and ironing, and then corrugated by a corrugating machine, so as to obtain a first corrugated medium and a second corrugated medium.
After the surface of the corrugated medium is provided with the reinforcing long sheet, the corrugated medium is subjected to pretreatment, moisture adjustment and ironing, and then is subjected to corrugating by using a corrugating machine to obtain first wavy corrugated medium and second wavy corrugated medium. And atomizing the adhesive by using a high-pressure atomizing nozzle, and spraying the adhesive on the two surfaces of the first wavy corrugated medium and the second wavy corrugated medium and one surface of the kraft liner paper, wherein the spraying amount per square meter is 0.03 kg. Spraying an adhesive, and then respectively adhering the corrugated paper with the adhesive, and enabling the wave crests of the first wavy corrugated base paper and the wave crests of the second wavy corrugated base paper to be on the same vertical surface and completely adhered together to obtain a reinforced corrugated board;
the adhesive is prepared by uniformly mixing the following components in parts by weight: 1000 parts of pure water, 400 parts of starch, 20 parts of liquid caustic soda, 10 parts of epoxidized soybean oil and 10 parts of glycerol. The baffle and the reinforcing ribs are made of kraft paper. The reinforcing long sheet is made of PVC.
And step S2, performing die cutting, indentation and carton nailing/gluing on the reinforced corrugated board to obtain a corrugated carton, and then bonding reinforcing ribs and partition boards on the surfaces of the corrugated cartons, which are mutually deviated, to obtain the high-strength corrugated carton.
Example 2
The production method of the high-strength corrugated case comprises the following steps:
step S1, after the reinforcing long sheet is arranged on the surface of the corrugated medium, the corrugated medium is subjected to pretreatment to adjust moisture and ironing, and then corrugated by a corrugating machine, so as to obtain a first corrugated medium and a second corrugated medium.
After the surface of the corrugated medium is provided with the reinforcing long sheet, the corrugated medium is subjected to pretreatment, moisture adjustment and ironing, and then is subjected to corrugating by using a corrugating machine to obtain first wavy corrugated medium and second wavy corrugated medium. And atomizing the adhesive by using a high-pressure atomizing nozzle, and spraying the adhesive on the two surfaces of the first wavy corrugated medium and the second wavy corrugated medium and one surface of the kraft liner paper, wherein the spraying amount per square meter is 0.04 kg. Spraying an adhesive, and then respectively adhering the corrugated paper with the adhesive, and enabling the wave crests of the first wavy corrugated base paper and the wave crests of the second wavy corrugated base paper to be on the same vertical surface and completely adhered together to obtain a reinforced corrugated board;
the adhesive is prepared by uniformly mixing the following components in parts by weight: 1200 parts of pure water, 450 parts of starch, 30 parts of liquid caustic soda, 15 parts of epoxidized soybean oil and 13 parts of glycerol. The baffle and the reinforcing ribs are made of kraft paper. The reinforcing long sheet is made of PVC.
And step S2, performing die cutting, indentation and carton nailing/gluing on the reinforced corrugated board to obtain a corrugated carton, and then bonding reinforcing ribs and partition boards on the surfaces of the corrugated cartons, which are mutually deviated, to obtain the high-strength corrugated carton.
Example 3
The production method of the high-strength corrugated case comprises the following steps:
step S1, after the reinforcing long sheet is arranged on the surface of the corrugated medium, the corrugated medium is subjected to pretreatment to adjust moisture and ironing, and then corrugated by a corrugating machine, so as to obtain a first corrugated medium and a second corrugated medium.
After the surface of the corrugated medium is provided with the reinforcing long sheet, the corrugated medium is subjected to pretreatment, moisture adjustment and ironing, and then is subjected to corrugating by using a corrugating machine to obtain first wavy corrugated medium and second wavy corrugated medium. And atomizing the adhesive by using a high-pressure atomizing nozzle, and spraying the adhesive on the two surfaces of the first wavy corrugated medium and the second wavy corrugated medium and one surface of the kraft liner paper, wherein the spraying amount per square meter is 0.05 kg. Spraying an adhesive, and then respectively adhering the corrugated paper with the adhesive, and enabling the wave crests of the first wavy corrugated base paper and the wave crests of the second wavy corrugated base paper to be on the same vertical surface and completely adhered together to obtain a reinforced corrugated board;
the adhesive is prepared by uniformly mixing the following components in parts by weight: 1300 parts of pure water, 500 parts of starch, 50 parts of liquid caustic soda, 20 parts of epoxidized soybean oil and 15 parts of glycerol. The baffle and the reinforcing ribs are made of kraft paper. The reinforcing long sheet is made of PVC.
And step S2, performing die cutting, indentation and carton nailing/gluing on the reinforced corrugated board to obtain a corrugated carton, and then bonding reinforcing ribs and partition boards on the surfaces of the corrugated cartons, which are mutually deviated, to obtain the high-strength corrugated carton.
In conclusion, compared with the prior art, the reinforced corrugated board of the high-strength corrugated case saves the interlayer paper between two layers of corrugated base paper, and improves the ratio of the compressive strength to the weight of the reinforced corrugated board by removing the interlayer paper and using the arrangement structure of the corrugated base paper of the invention in a matching way. Furthermore, the strength of the corrugated base paper is increased by utilizing the reinforcing long sheet, and the corrugated base paper can bear larger pressure and is not easy to deform by matching with a structure that wave crests of the wavy corrugated base paper are abutted, so that the compressive strength of the obtained corrugated board is 2-5 times that of a common corrugated board with the same thickness. The corrugated board of the high-strength corrugated case is provided with the partition boards and the reinforcing ribs in the vertical direction to strengthen the bearing in the vertical direction, and a space is formed between the partition boards and the reinforcing ribs, so that the corrugated board plays a good role in heavy buffering and shock resistance.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (7)
1. A high-strength corrugated carton is characterized by comprising a bottom layer, side walls and a surface layer; the bottom layer, the side wall and the surface layer are made of reinforced corrugated boards; the surfaces of the side walls, which are deviated from each other, are also provided with a supporting and reinforcing structure, the supporting and reinforcing structure comprises a partition board correspondingly attached to the inner side surface of the side wall, and a reinforcing rib in the vertical direction is also arranged between the partition board and the side wall;
the reinforced corrugated board sequentially comprises outer-layer surface paper, first wavy corrugated base paper, second wavy corrugated base paper and inner-layer surface paper;
the even interval in surface that the crest of first wave corrugated medium and second wave corrugated medium deviate from each other is provided with strengthens the long piece, strengthen the long piece and set up along the wave extending direction of corrugated medium, the shape of first wave corrugated medium and second wave corrugated medium is the same, the crest of first wave corrugated medium and the crest of second wave corrugated medium are in the same perpendicular and completely cohere together.
2. The high strength corrugated box as claimed in claim 1, wherein the separator and the reinforcing ribs are kraft paper.
3. The high strength corrugated carton according to claim 1, wherein the material of said reinforcing long sheet is PVC.
4. A method for producing a high-strength corrugated cardboard box as claimed in any one of claims 1 to 3, which comprises the steps of:
step S1, after reinforcing long sheets are arranged on the surfaces of the corrugated base papers, obtaining a first wavy corrugated base paper and a second wavy corrugated base paper by using a corrugating machine, respectively spraying adhesives on the first wavy corrugated base paper and the second wavy corrugated base paper, respectively adhering the first wavy corrugated base paper and the second wavy corrugated base paper to each other, and completely adhering the wave crests of the first wavy corrugated base paper and the wave crests of the second wavy corrugated base paper on the same vertical surface to obtain a reinforced corrugated board;
and step S2, performing die cutting, indentation and carton nailing/gluing on the reinforced corrugated board to obtain a corrugated carton, and then bonding reinforcing ribs and partition boards on the surfaces of the corrugated cartons, which are mutually deviated, to obtain the high-strength corrugated carton.
5. The method for producing a high-strength corrugated carton according to claim 4, wherein the adhesive is prepared by uniformly mixing the following components in parts by weight: 1300 parts of pure water of 1000-.
6. The method for producing a high-strength corrugated box according to claim 4, wherein the step of obtaining the first corrugated medium sheet and the second corrugated medium sheet by using a corrugating machine after providing the reinforcing long sheet on the surface of the corrugated medium sheet is specifically: after the surface of the corrugated medium is provided with the reinforcing long sheet, the corrugated medium is subjected to pretreatment, moisture adjustment and ironing, and then is subjected to corrugating by using a corrugating machine to obtain first wavy corrugated medium and second wavy corrugated medium.
7. The method for producing a high-strength corrugated box according to claim 4, wherein said "spray adhesive" is specifically: spraying the adhesive on the two surfaces of the first wavy corrugated medium and the second wavy corrugated medium and one surface of the kraft paper by atomizing with a high-pressure atomizer, wherein the spraying amount per square meter is 0.03-0.05 kg.
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CN114104460A (en) * | 2021-12-13 | 2022-03-01 | 厦门合兴实业有限公司 | Green recyclable and degradable corrugated carton and production method thereof |
CN115679750A (en) * | 2022-10-12 | 2023-02-03 | 琼海恒昇纸业有限公司 | Degradable carton and production method thereof |
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CN211363823U (en) * | 2019-10-29 | 2020-08-28 | 珠海正业包装有限公司 | High-strength anti-breaking corrugated paper box |
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CN205326422U (en) * | 2016-01-21 | 2016-06-22 | 北京京东方显示技术有限公司 | Corrugated cardboard |
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CN115679750A (en) * | 2022-10-12 | 2023-02-03 | 琼海恒昇纸业有限公司 | Degradable carton and production method thereof |
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