CN113601912A - Corrugated board clean production process - Google Patents
Corrugated board clean production process Download PDFInfo
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- CN113601912A CN113601912A CN202110794628.3A CN202110794628A CN113601912A CN 113601912 A CN113601912 A CN 113601912A CN 202110794628 A CN202110794628 A CN 202110794628A CN 113601912 A CN113601912 A CN 113601912A
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- corrugated
- corrugated board
- production process
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 239000000853 adhesive Substances 0.000 claims abstract description 26
- 230000001070 adhesive effect Effects 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 230000005855 radiation Effects 0.000 claims abstract description 10
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 7
- 239000003831 antifriction material Substances 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 239000000123 paper Substances 0.000 claims description 53
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 229920002472 Starch Polymers 0.000 claims description 20
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 20
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 20
- 239000007800 oxidant agent Substances 0.000 claims description 20
- 235000019698 starch Nutrition 0.000 claims description 20
- 239000008107 starch Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 20
- 239000003085 diluting agent Substances 0.000 claims description 15
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerol group Chemical group OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 15
- 230000001590 oxidative effect Effects 0.000 claims description 15
- 239000004014 plasticizer Substances 0.000 claims description 15
- 239000003755 preservative agent Substances 0.000 claims description 15
- 230000002335 preservative effect Effects 0.000 claims description 15
- 239000002518 antifoaming agent Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 238000010030 laminating Methods 0.000 claims description 11
- 229920002261 Corn starch Polymers 0.000 claims description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 229910021538 borax Inorganic materials 0.000 claims description 10
- 239000008120 corn starch Substances 0.000 claims description 10
- 239000012188 paraffin wax Substances 0.000 claims description 10
- 229920001592 potato starch Polymers 0.000 claims description 10
- 239000004328 sodium tetraborate Substances 0.000 claims description 10
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 10
- 229940037312 stearamide Drugs 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 6
- SKBVNXHOVKJOOU-UHFFFAOYSA-I [Na+].[Na+].[Na+].[Na+].[Na+].[Cl-].[Cl-].[Cl-].[Cl-].[Cl-] Chemical group [Na+].[Na+].[Na+].[Na+].[Na+].[Cl-].[Cl-].[Cl-].[Cl-].[Cl-] SKBVNXHOVKJOOU-UHFFFAOYSA-I 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical group CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims 6
- 239000013530 defoamer Substances 0.000 claims 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 11
- 238000002360 preparation method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
-
- 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
-
- 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
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/62—Boxes, cartons, cases
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Paper (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
The invention discloses a corrugated board clean production process, which comprises the following steps: processing the paper core: uniformly coating antifriction agents on the upper surface and the lower surface of the corrugated base paper, then sequentially preheating the corrugated base paper by a plurality of preheating rollers and carrying out steam heating and humidifying treatment, and then rolling the corrugated base paper into a paper core; gluing the paper core: uniformly coating adhesives on the top surfaces of the corrugated peaks on the upper surface and the lower surface of the paper core through glue coating rollers; and (3) sticking and pressing for forming: the paper core coated with the adhesive is pressed and molded by a preheated pressing roller through the middle of two pieces of face paper to obtain a corrugated board; drying and cooling: the corrugated board after the sticking and pressing molding is sequentially subjected to the radiation heat drying treatment through a plurality of heating plates, and the corrugated board is cooled between the heating plates at the rear end and at the rear end of the heating plates through compressed gas; and (3) processing a finished product: and pressing lines and cutting the corrugated board after drying and cooling treatment, and then stacking and forming. The invention can realize clean production and improve the product quality.
Description
Technical Field
The invention relates to a corrugated board clean production process, and belongs to the field of corrugated board production.
Background
Corrugated board is a multi-layer adhesive body, which is composed of at least one wave-shaped core paper interlayer and one layer of paper board. The corrugated case has the advantages of light weight, compression resistance, puncture resistance, tear resistance, buffering, shock resistance, easy processing and forming and the like, can be recycled, has no pollution to the environment and the like, and is considered as a preferred mode for transporting and packaging food. In addition, the corrugated board is used for protecting commodities, is convenient for storage and transportation, and also has the functions of beautifying the commodities and publicizing the commodities. The corrugated board is made up by using native straw pulp and waste paper through the processes of pulping to obtain raw paper board, mechanically processing and rolling into corrugated form, then using adhesive and surface paper to make them be adhered together; the existing production process of the corrugated board can generate certain pollutants, consumes more energy, is not beneficial to clean production, and the quality of the manufactured corrugated board is poor.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a corrugated board clean production process, which can realize clean production and improve the product quality.
The technical scheme adopted by the invention is as follows:
a corrugated board clean production process comprises the following steps:
s1, paper core processing: uniformly coating antifriction agents on the upper surface and the lower surface of the corrugated base paper, then sequentially preheating the corrugated base paper by a plurality of preheating rollers and carrying out steam heating and humidifying treatment, and then rolling the corrugated base paper into a paper core;
s2, gluing the paper core: uniformly coating adhesives on the top surfaces of the corrugated peaks on the upper surface and the lower surface of the paper core through glue coating rollers;
s3, laminating and forming: the paper core coated with the adhesive is pressed and molded by a preheated pressing roller through the middle of two pieces of face paper to obtain a corrugated board;
s4, drying and cooling: the corrugated board after the sticking and pressing molding is sequentially subjected to the radiation heat drying treatment through a plurality of heating plates, and the corrugated board is cooled between the heating plates at the rear end and at the rear end of the heating plates through compressed gas;
s5, processing of finished products: and pressing lines and cutting the corrugated board after drying and cooling treatment, and then stacking and forming.
Preferably, the humidity of the corrugated base paper is 8% -10%.
Further preferably, the friction reducer is molten paraffin and stearamide, wherein the mass ratio of the paraffin to the stearamide is 3-4: 1.
Further preferably, the preheating temperature of the preheating roller is 70-80 ℃.
Further preferably, the steam heating temperature is 160-170 ℃, and the steam pressure is 0.9-1.3 MPa.
Further preferably, the adhesive is prepared from the following components in parts by weight: 40-50 parts of starch, 200 parts of 170-containing water, 3-5 parts of sodium hydroxide, 1-2 parts of manganese dioxide, 1-2 parts of borax, 3-5 parts of an oxidant, 0.5-0.8 part of a diluent, 0.5-1 part of a plasticizer, 0.2-0.4 part of an antifoaming agent and 0.5-0.7 part of a preservative.
Further preferably, the starch is a mixture of corn starch and potato starch, wherein the mass ratio of the corn starch to the potato starch is 1:1, the oxidizing agent is hydrogen peroxide, the diluent is urea, the plasticizer is glycerol, the defoaming agent is tributyl phosphate, and the preservative is sodium pentachloride.
Further preferably, the preparation method of the adhesive is as follows:
the method comprises the following steps: adding a defoaming agent and water with the mass 2-3 times of that of the starch into a reactor, and then heating to 60-65 ℃;
step two: adding an oxidant into water with the volume ratio of 3:7-10 for dilution for later use;
step three: adding starch and the rest water into the heated water in the reactor intermittently, stirring fully in the adding process, raising the temperature in the reactor to 68-73 ℃, adding manganese dioxide into the reactor, adding the diluted oxidant into the reactor for three times and every 10min, and maintaining the stirring state;
step four: adding sodium hydroxide into a reactor and then fully stirring for 1 h;
step five: then adding borax, diluent, plasticizer and preservative into the reactor, stirring for 10min, and then preserving heat for later use.
Further preferably, the preheating temperature of the laminating roller is 50-60 ℃.
Further preferably, the heating plate radiation heat treatment temperature is 120-130 ℃, and the compressed gas cooling treatment temperature is 30-40 ℃.
The invention has the beneficial effects that:
by adopting the process steps of paper core processing, paper core gluing, laminating and forming, drying and cooling and the adhesive provided by the invention, the energy consumption is reduced, the generation of pollutants is reduced, and the product quality can be improved.
Detailed Description
The present invention will be described in detail with reference to the following examples.
Example 1: the embodiment is a corrugated board clean production process, which comprises the following steps:
s1, paper core processing: uniformly coating antifriction agents on the upper surface and the lower surface of the corrugated base paper, then sequentially preheating the corrugated base paper by a plurality of preheating rollers and carrying out steam heating and humidifying treatment, and then rolling the corrugated base paper into a paper core;
s2, gluing the paper core: uniformly coating adhesives on the top surfaces of the corrugated peaks on the upper surface and the lower surface of the paper core through glue coating rollers;
s3, laminating and forming: the paper core coated with the adhesive is pressed and molded by a preheated pressing roller through the middle of two pieces of face paper to obtain a corrugated board;
s4, drying and cooling: the corrugated board after the sticking and pressing molding is sequentially subjected to the radiation heat drying treatment through a plurality of heating plates, and the corrugated board is cooled between the heating plates at the rear end and at the rear end of the heating plates through compressed gas;
s5, processing of finished products: and pressing lines and cutting the corrugated board after drying and cooling treatment, and then stacking and forming.
In this embodiment, the humidity of the corrugated medium is 8%.
In this example, the friction reducer is molten paraffin and stearamide, wherein the mass ratio of paraffin to stearamide is 3: 1.
In this example, the preheating roll preheating temperature was 70 ℃.
In this example, the steam heating temperature was 160 ℃ and the steam pressure was 0.9 MPa.
In this example, the adhesive was prepared from the following components in parts by weight: 40 parts of starch, 170 parts of water, 3 parts of sodium hydroxide, 1 part of manganese dioxide, 1 part of borax, 3 parts of an oxidizing agent, 0.5 part of a diluent, 0.5 part of a plasticizer, 0.2 part of a defoaming agent and 0.5 part of a preservative.
In this example, the starch is a mixture of corn starch and potato starch, wherein the mass ratio of the corn starch to the potato starch is 1:1, the oxidizing agent is hydrogen peroxide, the diluent is urea, the plasticizer is glycerol, the defoaming agent is tributyl phosphate, and the preservative is sodium pentachloride.
In this example, the preparation method of the adhesive was as follows:
the method comprises the following steps: adding a defoaming agent and water with the mass 2 times of that of the starch into a reactor, and then heating to 60 ℃;
step two: adding an oxidant into water with the volume ratio of 3:7 for dilution for later use;
step three: adding starch and the rest water into the heated water in the reactor intermittently, stirring fully in the adding process, raising the temperature in the reactor to 68 ℃, adding manganese dioxide into the reactor, adding the diluted oxidant into the reactor for three times and every 10min, and maintaining the stirring state;
step four: adding sodium hydroxide into a reactor and then fully stirring for 1 h;
step five: then adding borax, diluent, plasticizer and preservative into the reactor, stirring for 10min, and then preserving heat for later use.
In this embodiment, the preheating temperature of the laminating roller is 50 ℃.
In this example, the heating plate radiation heat treatment temperature was 120 ℃ and the compressed air cooling treatment temperature was 30 ℃.
Example 2: the embodiment is a corrugated board clean production process, which comprises the following steps:
s1, paper core processing: uniformly coating antifriction agents on the upper surface and the lower surface of the corrugated base paper, then sequentially preheating the corrugated base paper by a plurality of preheating rollers and carrying out steam heating and humidifying treatment, and then rolling the corrugated base paper into a paper core;
s2, gluing the paper core: uniformly coating adhesives on the top surfaces of the corrugated peaks on the upper surface and the lower surface of the paper core through glue coating rollers;
s3, laminating and forming: the paper core coated with the adhesive is pressed and molded by a preheated pressing roller through the middle of two pieces of face paper to obtain a corrugated board;
s4, drying and cooling: the corrugated board after the sticking and pressing molding is sequentially subjected to the radiation heat drying treatment through a plurality of heating plates, and the corrugated board is cooled between the heating plates at the rear end and at the rear end of the heating plates through compressed gas;
s5, processing of finished products: and pressing lines and cutting the corrugated board after drying and cooling treatment, and then stacking and forming.
In this embodiment, the humidity of the corrugated medium is 10%.
In this example, the friction reducer is molten paraffin and stearamide, wherein the mass ratio of paraffin to stearamide is 4: 1.
In this example, the preheating roll preheating temperature was 80 ℃.
In this example, the steam heating temperature was 170 ℃ and the steam pressure was 1.3 MPa.
In this example, the adhesive was prepared from the following components in parts by weight: 50 parts of starch, 200 parts of water, 5 parts of sodium hydroxide, 2 parts of manganese dioxide, 2 parts of borax, 5 parts of an oxidant, 0.8 part of a diluent, 1 part of a plasticizer, 0.4 part of a defoaming agent and 0.7 part of a preservative.
In this example, the starch is a mixture of corn starch and potato starch, wherein the mass ratio of the corn starch to the potato starch is 1:1, the oxidizing agent is hydrogen peroxide, the diluent is urea, the plasticizer is glycerol, the defoaming agent is tributyl phosphate, and the preservative is sodium pentachloride.
In this example, the preparation method of the adhesive was as follows:
the method comprises the following steps: adding a defoaming agent and water with the mass being 3 times that of starch into a reactor, and then heating to 65 ℃;
step two: adding an oxidant into water with the volume ratio of 3: 10 for dilution for later use;
step three: adding starch and the rest water into the heated water in the reactor intermittently, stirring fully in the adding process, raising the temperature in the reactor to 73 ℃, adding manganese dioxide into the reactor, adding the diluted oxidant into the reactor for three times and every 10min, and maintaining the stirring state;
step four: adding sodium hydroxide into a reactor and then fully stirring for 1 h;
step five: then adding borax, diluent, plasticizer and preservative into the reactor, stirring for 10min, and then preserving heat for later use.
In this embodiment, the preheating temperature of the laminating roller is 60 ℃.
In this example, the heating plate radiation heat treatment temperature was 130 ℃ and the compressed air cooling treatment temperature was 40 ℃.
Example 3: the embodiment is a corrugated board clean production process, which comprises the following steps:
s1, paper core processing: uniformly coating antifriction agents on the upper surface and the lower surface of the corrugated base paper, then sequentially preheating the corrugated base paper by a plurality of preheating rollers and carrying out steam heating and humidifying treatment, and then rolling the corrugated base paper into a paper core;
s2, gluing the paper core: uniformly coating adhesives on the top surfaces of the corrugated peaks on the upper surface and the lower surface of the paper core through glue coating rollers;
s3, laminating and forming: the paper core coated with the adhesive is pressed and molded by a preheated pressing roller through the middle of two pieces of face paper to obtain a corrugated board;
s4, drying and cooling: the corrugated board after the sticking and pressing molding is sequentially subjected to the radiation heat drying treatment through a plurality of heating plates, and the corrugated board is cooled between the heating plates at the rear end and at the rear end of the heating plates through compressed gas;
s5, processing of finished products: and pressing lines and cutting the corrugated board after drying and cooling treatment, and then stacking and forming.
In this embodiment, the humidity of the corrugated medium is 9%.
In this example, the friction reducer is molten paraffin and stearamide, wherein the mass ratio of paraffin to stearamide is 3.5: 1.
In this example, the preheating roll preheating temperature was 75 ℃.
In this example, the steam heating temperature was 165 ℃ and the steam pressure was 1.1 MPa.
In this example, the adhesive was prepared from the following components in parts by weight: 45 parts of starch, 185 parts of water, 4 parts of sodium hydroxide, 1.5 parts of manganese dioxide, 1.5 parts of borax, 4 parts of an oxidant, 0.6 part of a diluent, 0.8 part of a plasticizer, 0.3 part of a defoaming agent and 0.6 part of a preservative.
In this example, the starch is a mixture of corn starch and potato starch, wherein the mass ratio of the corn starch to the potato starch is 1:1, the oxidizing agent is hydrogen peroxide, the diluent is urea, the plasticizer is glycerol, the defoaming agent is tributyl phosphate, and the preservative is sodium pentachloride.
In this example, the preparation method of the adhesive was as follows:
the method comprises the following steps: adding a defoaming agent and water with the mass 2.5 times of that of the starch into a reactor, and then heating to 63 ℃;
step two: adding an oxidant into water with the volume ratio of 3:8 for dilution for later use;
step three: adding starch and the rest water into the heated water in the reactor intermittently, stirring fully in the adding process, raising the temperature in the reactor to 70 ℃, adding manganese dioxide into the reactor, adding the diluted oxidant into the reactor for three times and every 10min, and maintaining the stirring state;
step four: adding sodium hydroxide into a reactor and then fully stirring for 1 h;
step five: then adding borax, diluent, plasticizer and preservative into the reactor, stirring for 10min, and then preserving heat for later use.
In this embodiment, the preheating temperature of the laminating roller is 55 ℃.
In this example, the heat radiation treatment temperature of the heating plate was 125 ℃ and the cooling treatment temperature of the compressed air was 35 ℃.
According to the invention, the friction coefficient of the corrugated base paper can be reduced by uniformly coating the antifriction agents on the upper and lower surfaces of the corrugated base paper, so that the corrugated base paper is prevented from being broken due to overlarge tension when being corrugated, and the product quality is ensured; the corrugated base paper is preheated by a plurality of preheating rollers and subjected to steam heating and humidity conditioning treatment in sequence, so that the operation and the bonding of a later-stage adhesive are facilitated, the internal stress of the corrugated base paper can be eliminated, the corrugated base paper is ironed, the water content of the corrugated base paper is uniform, and the corrugated forming is facilitated; the corrugated board is cooled by compressed air between the heating plates positioned at the rear ends and at the rear ends of the heating plates, so that the bonding quality can be ensured, and the quality of a finished product is further ensured.
The above description is only a preferred embodiment of the present patent, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the inventive concept, and these modifications and decorations should also be regarded as the protection scope of the present patent.
Claims (10)
1. A corrugated board clean production process is characterized in that: the production process comprises the following steps:
s1, paper core processing: uniformly coating antifriction agents on the upper surface and the lower surface of the corrugated base paper, then sequentially preheating the corrugated base paper by a plurality of preheating rollers and carrying out steam heating and humidifying treatment, and then rolling the corrugated base paper into a paper core;
s2, gluing the paper core: uniformly coating adhesives on the top surfaces of the corrugated peaks on the upper surface and the lower surface of the paper core through glue coating rollers;
s3, laminating and forming: the paper core coated with the adhesive is pressed and molded by a preheated pressing roller through the middle of two pieces of face paper to obtain a corrugated board;
s4, drying and cooling: the corrugated board after the sticking and pressing molding is sequentially subjected to the radiation heat drying treatment through a plurality of heating plates, and the corrugated board is cooled between the heating plates at the rear end and at the rear end of the heating plates through compressed gas;
s5, processing of finished products: and pressing lines and cutting the corrugated board after drying and cooling treatment, and then stacking and forming.
2. The corrugated board clean production process as claimed in claim 1, wherein the humidity of the corrugated base paper is 8-10%.
3. A corrugated cardboard cleaning production process as claimed in claim 1 wherein the friction reducer is melted paraffin wax and stearamide, wherein the mass ratio of paraffin wax to stearamide is 3-4: 1.
4. A corrugated cardboard cleaning production process according to claim 1 wherein the preheating roller preheating temperature is 70 ℃ to 80 ℃.
5. A corrugated cardboard cleaning production process as claimed in claim 1 wherein the steam heating temperature is 160 ℃ to 170 ℃ and the steam pressure is 0.9MPa to 1.3 MPa.
6. A corrugated cardboard cleaning production process as claimed in claim 1 wherein said adhesive is made from the following components in parts by weight: 40-50 parts of starch, 200 parts of 170-containing water, 3-5 parts of sodium hydroxide, 1-2 parts of manganese dioxide, 1-2 parts of borax, 3-5 parts of an oxidant, 0.5-0.8 part of a diluent, 0.5-1 part of a plasticizer, 0.2-0.4 part of an antifoaming agent and 0.5-0.7 part of a preservative.
7. The corrugated board clean production process of claim 1, characterized in that the starch is a mixture of corn starch and potato starch, wherein the mass ratio of corn starch to potato starch is 1:1, the oxidant is hydrogen peroxide, the diluent is urea, the plasticizer is glycerol, the defoamer is tributyl phosphate, and the preservative is sodium pentachloride.
8. A corrugated cardboard cleaning production process according to claim 6 or 7 wherein the adhesive is prepared by the following steps:
the method comprises the following steps: adding a defoaming agent and water with the mass 2-3 times of that of the starch into a reactor, and then heating to 60-65 ℃;
step two: adding an oxidant into water with the volume ratio of 3:7-10 for dilution for later use;
step three: adding starch and the rest water into the heated water in the reactor intermittently, stirring fully in the adding process, raising the temperature in the reactor to 68-73 ℃, adding manganese dioxide into the reactor, adding the diluted oxidant into the reactor for three times and every 10min, and maintaining the stirring state;
step four: adding sodium hydroxide into a reactor and then fully stirring for 1 h;
step five: then adding borax, diluent, plasticizer and preservative into the reactor, stirring for 10min, and then preserving heat for later use.
9. A corrugated cardboard cleaning production process as claimed in claim 1 wherein the preheating temperature of the laminating roller is 50 ℃ to 60 ℃.
10. A corrugated cardboard as claimed in claim 1 wherein the heating plate is irradiated with heat at a temperature of 120 ℃ to 130 ℃ and the compressed air is cooled at a temperature of 30 ℃ to 40 ℃.
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| US4086116A (en) * | 1973-10-30 | 1978-04-25 | Mitsubishi Petrochemical Co., Ltd. | Corrugated cardboard sheet and method for producing same |
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Application publication date: 20211105 |