CN112621976A - Production process of paperboard with high water resistance and high wear resistance - Google Patents
Production process of paperboard with high water resistance and high wear resistance Download PDFInfo
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- CN112621976A CN112621976A CN202011573339.2A CN202011573339A CN112621976A CN 112621976 A CN112621976 A CN 112621976A CN 202011573339 A CN202011573339 A CN 202011573339A CN 112621976 A CN112621976 A CN 112621976A
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- paperboard
- raw materials
- highly
- repellent
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- 239000011087 paperboard Substances 0.000 title claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 55
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 239000003292 glue Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 238000007731 hot pressing Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000002791 soaking Methods 0.000 claims abstract description 8
- 238000005303 weighing Methods 0.000 claims abstract description 7
- 238000007605 air drying Methods 0.000 claims abstract description 5
- 239000011111 cardboard Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000010902 straw Substances 0.000 claims description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 5
- 240000008042 Zea mays Species 0.000 claims description 5
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 5
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 5
- 235000005822 corn Nutrition 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 235000013312 flour Nutrition 0.000 claims description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 claims 9
- 239000005871 repellent Substances 0.000 claims 9
- 238000005096 rolling process Methods 0.000 claims 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 5
- 239000000123 paper Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2200/00—Wooden materials to be treated
- B27K2200/15—Pretreated particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/30—Fireproofing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2240/00—Purpose of the treatment
- B27K2240/70—Hydrophobation treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention is suitable for the technical field of hardboard production, and provides a production process of a highly waterproof and highly wear-resistant paperboard, which comprises a crusher, a hot press, a fan and a stirrer, and comprises the following steps: step S100: crushing the material for making the plate; step S200: weighing the crushed raw materials; step S300: mixing the crushed raw materials with glue; step S400: introducing the mixture into a forming template; step S500: soaking the mixture; step S600: hot pressing the shaped mixture; step S700: air-drying and cooling the paperboard after hot pressing; step S800: cutting the cooled paperboard; step S900: the quality of the paperboard is checked, and the molded paperboard has higher fire resistance and water resistance, so that the produced paperboard has more advantages compared with the traditional paperboard.
Description
Technical Field
The invention belongs to the field of hardboard production, and particularly relates to a production process of a highly waterproof and highly wear-resistant paperboard.
Background
The paperboard is a thick paper sheet which is made by processing various paper pulps and is formed by interweaving fibers, the difference between the paperboard and the paper is usually distinguished by the quantitative quantity and the thickness, the paperboard with the quantitative quantity of more than 200g per square meter and the thickness of more than 0.5mm is generally called as the paperboard, and the paperboard is mainly used for packaging paper boxes, packaging materials or printing materials.
In the existing paperboard production process, except that the paperboard material has waterproof and fireproof performance, other fireproof and waterproof procedures are not performed, so that the waterproof and fireproof performance is lower, and in the raw material mixing process, the mixing is not uniform enough, so that the produced paperboard has certain defects.
Disclosure of Invention
The invention provides a production process of a paperboard with high water resistance and strong wear resistance, and aims to solve the problems that in the existing paperboard production process, except that a paperboard material has waterproof and fireproof performance, other fireproof and waterproof procedures are not needed, so that the waterproof and fireproof performance is low, and in a raw material mixing process, the mixing is not uniform enough, so that the produced paperboard has certain flaws.
The invention is realized in this way, a highly waterproof and strong wear-resistant paperboard production process, including pulverizer, hot press, blower and agitator, including the following steps:
step S100: crushing the material for making the plate;
step S200: weighing the crushed raw materials;
step S300: mixing the crushed raw materials with glue;
step S400: introducing the mixture into a forming template;
step S500: soaking the mixture;
step S600: hot pressing the shaped mixture;
step S700: air-drying and cooling the paperboard after hot pressing;
step S800: cutting the cooled paperboard;
step S900: and (5) inspecting the quality of the paperboard.
Preferably, in the step S100, the raw material straw is pulverized into a uniform granular raw material by a pulverizer.
Preferably, in the step S200, the weight of the raw materials is weighed, and the quality parameter of the glue can be matched according to the weight of the raw materials.
Preferably, in step S300, the materials of the glue are corn flour, sodium hydroxide, water, soda and formaldehyde, and the mixing device is a blender.
Preferably, the stirrer consists of a motor, a stirring barrel, a stirring rod and a stirring blade, and one end of the stirring blade is uniformly provided with a plurality of mixing holes.
Preferably, in the step S500, the mixed raw materials are put into the resin and soaked for 15min to 20 min.
Preferably, in step S600, the template is roll-formed by using a press plate on a hot press, and the temperature of the press plate is maintained at 100 ℃.
Preferably, in the step S700, the air drying and cooling for 10min to 15min are continuously performed on the paperboard by the fan.
Preferably, in step S800, the paperboard is cut according to a proportional size.
Preferably, in step S900, the detection of the cardboard includes harmful substance detection and strength detection.
Compared with the prior art, the invention has the beneficial effects that: according to the production process of the paperboard with high water resistance and high wear resistance, the raw material mixture is stirred and mixed by using the stirrer with the mixing holes in the mixing stage, so that the materials in the raw materials are fully mixed, the quality of the produced paperboard is higher, the soaking procedure is added between the forming and the hot pressing, the formed paperboard has higher fire resistance and water resistance, and the produced paperboard has advantages compared with the traditional paperboard.
Drawings
FIG. 1 is a schematic process flow diagram of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a technical solution: a production process of a paperboard with high water resistance and high wear resistance comprises a crusher, a hot press, a fan and a stirrer, and comprises the following steps:
step S100: crushing the material for making the plate;
step S200: weighing the crushed raw materials;
step S300: mixing the crushed raw materials with glue;
step S400: introducing the mixture into a forming template;
step S500: soaking the mixture;
step S600: hot pressing the shaped mixture;
step S700: air-drying and cooling the paperboard after hot pressing;
step S800: cutting the cooled paperboard;
step S900: and (5) inspecting the quality of the paperboard.
In this embodiment, at first in the mixing stage, use the mixer of seting up the mixing hole to stir the raw materials mixture and mix, make the inside material intensive mixing of raw materials, and then make the cardboard quality of producing higher, through adding between shaping and hot pressing and soaking the process, make the cardboard have higher fire prevention waterproof nature after the shaping, and then make the cardboard of producing more have the advantage with traditional cardboard.
In the embodiment, firstly, a raw material straw pulverizer is provided with a cutting knife, and then the raw material straw is pulverized into particles with uniform size, the particle raw materials pulverized by the pulverizer are placed on a weighing device for weighing, the addition amount of glue is adjusted according to the weight of the particle raw materials, the particle raw materials are bonded after the glue is mixed with the particles, the overall uniformity of the plate can be improved, corn flour and formaldehyde with a certain proportion are placed in water for mixing to form a mixture, then sodium hydroxide and soda are placed in the mixture for fermentation and expansion of the mixture to form sticky glue, the mixed raw materials are placed in a stirrer, a circuit of a motor is started, the motor drives a stirring rod to rotate in the stirring barrel, a stirring blade is fixedly connected with the stirring barrel and further rotates in the stirring barrel, and the raw materials of the mixture are continuously stirred in the stirring barrel, the glue and the raw materials are fully mixed, the generated jelly raw materials are more uniform and sufficient, the quality of the produced paper board is higher, the raw materials and the forming template are placed in the resin together to be soaked for 15-20 min, the resin can be adhered to the surface of the paper board raw materials, a resin protective film is further formed on the surface of the paper board raw materials, the resin has better fireproof and waterproof properties, the produced paper board also has better fireproof and waterproof properties, after the soaking is completed, the forming template and the raw materials are placed on a surface workbench of a hot press together, the hot press carries out hot press forming on the raw materials in the forming template, the temperature of the hot press is kept at 100 ℃, under the temperature, moisture is rapidly evaporated while the paper board material is not damaged, the paper board is rapidly formed, after the forming, a pressing plate is continuously pressed on the surface of the paper board, and the paper board is continuously dried and, the purpose of clamp plate is to avoid the cardboard to curl in the cooling process, and the cardboard after will cooling off and accomplish is demoulded from the shaping template, and then uses cutting device, cuts according to the required size of product, can obtain required cardboard finished product, when the cardboard cutting is accomplished the back, selects a detection sample between each cardboard, uses detection device to carry out harmful substance detection and intensity detection to it, when the sample is qualified after, packs the transportation to the product.
Further, in step S100, the straw is pulverized into uniform granular material by a pulverizer.
In this embodiment, at first with raw materials straw rubbing crusher, there is the cutting knife on the rubbing crusher, and then smashes raw materials straw into the even particulate matter of size.
Further, in step S200, the weight of the raw materials is weighed, and the quality parameters of the glue can be matched according to the weight of the raw materials.
In this embodiment, place the particulate matter raw materials after rubbing crusher smashes on weighing device and weigh, adjust the addition of glue according to the weight of particulate matter raw materials, glue and particulate matter mix the back, with the bonding of particulate matter raw materials, can improve the whole homogeneity of panel.
Further, in step S300, the glue is corn flour, sodium hydroxide, water, soda and formaldehyde, and the mixing device is a blender.
In this embodiment, corn meal and formaldehyde are mixed in water in a certain proportion to form a mixture, and sodium hydroxide and soda are placed in the mixture, so that the mixture is fermented and expanded to form a sticky glue.
Furthermore, the mixer comprises motor, agitator, puddler and stirring leaf, and a plurality of mixing holes have evenly been seted up to stirring leaf one end.
In this embodiment, place the raw materials of mixing in the mixer, the circuit of starter motor, motor drive puddler at the agitator internal rotation, stirring leaf and agitator fixed connection, and then also at the agitator internal rotation, the mixture raw materials passes through the continuous built-in stirring of agitator, makes glue and raw materials intensive mixing, and then the jelly raw materials that produces are more even abundant, and the cardboard quality of production is more.
Further, in step S500, the mixed raw materials are put into resin and soaked for 15min to 20 min.
In the embodiment, the raw materials and the forming template are placed in the resin to be soaked for 15-20 min, the resin can be adhered to the surface of the paperboard raw material, and then a resin protective film is formed on the surface of the paperboard raw material, and the resin has good fireproof and waterproof properties, so that the produced paperboard has good fireproof and waterproof properties.
Further, in step S600, a pressing plate on the hot press is used to roll the formed template, and the temperature of the pressing plate is maintained at 100 ℃.
In the embodiment, after soaking, the forming template and the raw material are placed on the surface workbench of the hot press, the hot press carries out hot press forming on the raw material in the forming template, the temperature of the hot press is kept at 100 ℃, and at the temperature, the moisture is quickly evaporated without damaging the paperboard material, so that the paperboard is quickly formed.
Further, in step S700, the cardboard is continuously air-dried and cooled for 10min to 15min by a fan.
In this embodiment, after forming, the press plate is used to press on the surface of the cardboard, and the cardboard is continuously air-dried and cooled by the blower, and the purpose of the press plate is to avoid the cardboard from curling during the cooling process.
Further, in step S800, the cardboard is cut according to the proportional size.
In this embodiment, the cooled paperboard is demolded from the forming die plate, and then cut by a cutting device according to the required size of the product, so that the required paperboard product can be obtained.
Further, in step S900, the detection of the cardboard includes harmful substance detection and strength detection.
In this embodiment, after the cardboard cutting, select a detection sample between each cardboard, use detection device to carry out harmful substance detection and intensity detection to it, after the sample is qualified, pack the transportation to the product.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a high waterproof and strong wear-resisting cardboard production technology, includes rubbing crusher, hot press, fan and mixer, its characterized in that: the method comprises the following steps:
step S100: crushing the material for making the plate;
step S200: weighing the crushed raw materials;
step S300: mixing the crushed raw materials with glue;
step S400: introducing the mixture into a forming template;
step S500: soaking the mixture;
step S600: hot pressing the shaped mixture;
step S700: air-drying and cooling the paperboard after hot pressing;
step S800: cutting the cooled paperboard;
step S900: and (5) inspecting the quality of the paperboard.
2. A process for producing a highly water-repellent and highly abrasion-resistant paperboard according to claim 1, characterized in that: in the step S100, the raw material straw is pulverized into a uniform granular raw material by a pulverizer.
3. A process for producing a highly water-repellent and highly abrasion-resistant paperboard according to claim 1, characterized in that: in the step S200, the weight of the raw materials is weighed, and the quality parameters of the glue can be matched according to the weight of the raw materials.
4. A process for producing a highly water-repellent and highly abrasion-resistant paperboard according to claim 1, characterized in that: in the step S300, the glue is made of corn flour, sodium hydroxide, water, soda and formaldehyde, and the mixing device is a stirrer.
5. A process for producing a highly water-repellent and highly abrasion-resistant paperboard according to claim 1, characterized in that: the mixer comprises motor, agitator, puddler and stirring leaf, a plurality of mixing holes have evenly been seted up to stirring leaf one end.
6. A process for producing a highly water-repellent and highly abrasion-resistant paperboard according to claim 1, characterized in that: in the step S500, the mixed raw materials are put into resin and soaked for 15min to 20 min.
7. A process for producing a highly water-repellent and highly abrasion-resistant paperboard according to claim 1, characterized in that: in the step S600, a pressing plate on a hot press is used for rolling and forming the template, and the temperature of the pressing plate is kept at 100 ℃.
8. A process for producing a highly water-repellent and highly abrasion-resistant paperboard according to claim 1, characterized in that: in the step S700, the paperboard is continuously dried and cooled for 10-15 min by a fan.
9. A process for producing a highly water-repellent and highly abrasion-resistant paperboard according to claim 1, characterized in that: in the step S800, the cardboard is cut according to the proportion.
10. A process for producing a highly water-repellent and highly abrasion-resistant paperboard according to claim 1, characterized in that: in step S900, the detection of the cardboard includes harmful substance detection and strength detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011573339.2A CN112621976A (en) | 2020-12-25 | 2020-12-25 | Production process of paperboard with high water resistance and high wear resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011573339.2A CN112621976A (en) | 2020-12-25 | 2020-12-25 | Production process of paperboard with high water resistance and high wear resistance |
Publications (1)
| Publication Number | Publication Date |
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| CN112621976A true CN112621976A (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011573339.2A Pending CN112621976A (en) | 2020-12-25 | 2020-12-25 | Production process of paperboard with high water resistance and high wear resistance |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401483A (en) * | 2015-11-12 | 2016-03-16 | 何志明 | High-abrasion resistance paperboard and production technology thereof |
| CN105437351A (en) * | 2015-11-10 | 2016-03-30 | 何志明 | Paperboard production technique |
| CN107877936A (en) * | 2017-11-07 | 2018-04-06 | 安徽星瑞包装材料有限公司 | A kind of cardboard processing technology for being used to pack |
| CN108479523A (en) * | 2018-05-30 | 2018-09-04 | 宿迁市三石包装容器有限公司 | A kind of novel chemical agitator |
| CN110605872A (en) * | 2019-09-17 | 2019-12-24 | 苏州市恒顺纸塑有限公司 | Production method of waterproof corrugated carton |
| CN111218831A (en) * | 2020-03-04 | 2020-06-02 | 广东通力定造股份有限公司 | Production method of degradable waterproof and oilproof paperboard |
| CN111572155A (en) * | 2020-05-22 | 2020-08-25 | 东莞市东创纸品制造有限公司 | Preparation method of waterproof corrugated board |
-
2020
- 2020-12-25 CN CN202011573339.2A patent/CN112621976A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105437351A (en) * | 2015-11-10 | 2016-03-30 | 何志明 | Paperboard production technique |
| CN105401483A (en) * | 2015-11-12 | 2016-03-16 | 何志明 | High-abrasion resistance paperboard and production technology thereof |
| CN107877936A (en) * | 2017-11-07 | 2018-04-06 | 安徽星瑞包装材料有限公司 | A kind of cardboard processing technology for being used to pack |
| CN108479523A (en) * | 2018-05-30 | 2018-09-04 | 宿迁市三石包装容器有限公司 | A kind of novel chemical agitator |
| CN110605872A (en) * | 2019-09-17 | 2019-12-24 | 苏州市恒顺纸塑有限公司 | Production method of waterproof corrugated carton |
| CN111218831A (en) * | 2020-03-04 | 2020-06-02 | 广东通力定造股份有限公司 | Production method of degradable waterproof and oilproof paperboard |
| CN111572155A (en) * | 2020-05-22 | 2020-08-25 | 东莞市东创纸品制造有限公司 | Preparation method of waterproof corrugated board |
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