Corrugated paper with composite structure and automatic production process

Abstract

The invention discloses corrugated paper with a composite structure and an automatic production process, the corrugated paper with the composite structure is prepared from the following components in parts by weight: 40-30 parts of waste paper, 35-20 parts of wood pulp, 20-15 parts of straw pulp, 13-10 parts of environment-friendly glue and 15-8 parts of additive, and the corrugated paper with the composite structure is prepared from the following components in parts by weight: 35 parts of waste paper, 28 parts of wood pulp, 16 parts of straw pulp, 11 parts of environment-friendly glue and 10 parts of additive. By utilizing environment-friendly glue and a high-energy-consumption control technology, the corrugated paper can be resource-saving and environment-friendly in the production process, the environmental pollution is reduced, a regenerated fiber material and a biodegradable polymer can be compounded through a biodegradable composite corrugated paper material, and the environment-friendly and environment-friendly corrugated paper is obtained. Therefore, the corrugated paper can be rapidly degraded after being used, pollution to the environment is reduced, and the waterproof and damp-proof performance of the corrugated paper can be improved by conducting coating treatment on the surface of the corrugated paper.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated paper production, in particular to corrugated paper with a composite structure and an automated production process. Background Art

[0002] Corrugated boxes have the advantages of light weight, good structural performance, puncture resistance, cushioning, shockproof, foldable, strong printing adaptability, environmental protection and recyclability, and suitability for automated packaging operations. In the fierce competition with other packaging materials, corrugated boxes have become the most commonly used and rapidly developing paper packaging containers with their unique properties, and have become the most important packaging form in modern packaging.

[0003] The search publication number: CN116787865A discloses a corrugated board production method in the field of corrugated board technology. The corrugated board production method adds ramie to the glue, and uses the moisture absorption and gas dispersion function of ramie to quickly absorb and disperse moisture, effectively avoiding the situation that the glue is debonded after the corrugated board is wetted by water, and effectively ensuring the quality of the corrugated board; however, the corrugated board does not have a waterproof function, and is extremely susceptible to moisture, causing the board to become soft, and the adhesive used therein is mostly made of chemical raw materials as the main material, which has certain pollution when used, and is not convenient for recycling in the later stage;

[0004] The search of publication number: CN109016690A discloses a five-layer corrugated paper production process, which can continuously produce five-layer corrugated paperboards, has a high degree of automation, can greatly reduce the labor intensity of workers, effectively improve production efficiency, and can automatically adjust the deviation of the surface paper and the core paper, control the deviation within a reasonable range, avoid excessive deviation so that the width of the composite corrugated paperboard becomes smaller and cannot be cut into qualified corrugated paperboards, and can be adjusted in time through automatic monitoring, which is highly practical; however, during the production of the corrugated paper, the quality and defects of the corrugated paper cannot be detected. When the corrugated paper is abnormal during the production process and the staff cannot find it in time, the quality of the corrugated paper will be reduced, and the production stability will also be reduced;

[0005] After searching the publication number: CN112810232A, a multi-layer corrugated paperboard processing device and its production process are disclosed. The advantages are that the multi-layer corrugated paperboard processing device and its production process are compact in structure and highly automated. The corrugated paperboard is automatically glued by the corrugated outer paper and the corrugated paper, and the gluing efficiency is high. Then, the corrugated paperboard is transported to the cutting and transportation line for cutting, and the cutting efficiency is high and the cutting is smooth. The multi-layer corrugated paperboard is selected and assembled as needed, and the processing efficiency is high, which saves enterprise costs. However, when the corrugated paperboard is to be cut, it can only be cut into one specification and model. When the corrugated paper needs to be cut into corrugated paper of different specifications and models, other settings need to be changed, thereby reducing applicability and flexibility. Summary of the invention

[0006] The purpose of the present invention is to provide a composite structure corrugated paper and an automated production process to solve the problems mentioned in the above background technology that the paperboard has no waterproof function and is extremely susceptible to moisture, which causes the paperboard to become soft, and the adhesives used therein are mostly made of chemical raw materials as the main materials, which cause certain pollution during use and are not easy to be recycled in the later stage.

[0007] To achieve the above purpose, the present invention provides the following technical solution: a corrugated paper with a composite structure, comprising the following components by weight: 40-30 parts of waste paper, 35-20 parts of wood pulp, 20-15 parts of straw pulp, 13-10 parts of environmentally friendly glue and 15-8 parts of additives.

[0008] As a preferred technical solution of the present invention, the corrugated paper of the composite structure comprises the following components by weight: 35 parts of waste paper, 28 parts of wood pulp, 16 parts of straw pulp, 11 parts of environmentally friendly glue and 10 parts of additives.

[0009] The additives include 20-22 parts of starch, 22-13 parts of resin, 13-18 parts of waterproofing agent, 8-10 parts of reinforcing agent, 8-5 parts of antioxidant, 12-6 parts of defoaming agent, 9-4 parts of surface treatment agent, 8-3 parts of fire retardant and 5-2 parts of antibacterial agent.

[0010] An automated production process for corrugated paper of a composite structure comprises the following steps:

[0011] S1: First, select and pre-process the raw materials. Use image recognition technology to automatically classify and inspect the quality of the raw materials to ensure that the selected cardboard meets the requirements. Use pre-processing algorithms to process the raw materials, remove impurities, adjust humidity, and generate pre-processed high-quality raw materials.

[0012] S2: Based on the results of S1, different types of raw materials are proportioned according to the requirements, and various raw materials are mixed to ensure that the composition of the mixture meets the design requirements and generate a reasonably formulated pulp mixture;

[0013] S3: Based on the pulp mixture prepared in S2, the pulp mixture is formed into face paper using a forming machine, and then glue or other adhesives are coated on the surface of the face paper using coating technology to enhance the bonding strength of the cardboard. The treated corrugated core paper and face paper are fed into a laminating machine, and they are compounded together using lamination and hot pressing technology to form a corrugated paper with a composite structure, thereby generating a corrugated board with a complete composite structure.

[0014] As a preferred technical solution of the present invention, the step S1 includes the following steps:

[0015] S1.1: Raw material image recognition and classification: Use high-resolution cameras or sensors to collect images of raw materials and then perform raw material image recognition, and then use support vector machines for classification to ensure that the selected materials meet the requirements and generate classified raw material data;

[0016] S1.2: Raw material quality inspection: Through raw material quality inspection, sensors are used to collect parameters such as humidity and density of raw materials, and quality inspection is performed through statistical methods to screen out raw materials that meet the requirements and generate raw material data that meet the requirements;

[0017] S1.3: Raw material pretreatment: According to the quality inspection results in step S1.2, the raw materials are pretreated, including denoising, removing impurities, adjusting humidity, etc., to ensure that they are suitable for subsequent production and generate pretreated raw materials.

[0018] As a preferred technical solution of the present invention, the step S2 includes the following steps:

[0019] S2.1: Ratio optimization: Based on product requirements and raw material properties, an optimization algorithm is used to optimize the ratio of different types of raw materials to obtain the best finished product performance and generate an optimized raw material ratio plan;

[0020] S2.2: Pulp preparation: Based on the optimized ratio scheme in step S2.1, various raw materials are mixed in a certain proportion, and a proper amount of water is added for stirring, and finally a uniform pulp is formed to generate a reasonably formulated pulp mixture;

[0021] S2.3: Pulp quality testing: Use pulp quality testing equipment to test the quality of the prepared pulp, including measuring the pH value, concentration, viscosity and other parameters of the pulp, and generating quality qualified pulp data;

[0022] S2.4: Pulp adjustment: According to the quality test results in step S2.3, the composition of the pulp is adjusted, the amount of water added is adjusted, and fiber reinforcement is added to ensure that the quality of the pulp meets the requirements, and an adjusted pulp mixture is generated.

[0023] As a preferred technical solution of the present invention, the step S3 includes the following steps:

[0024] S3.1: Design a suitable molding die according to product requirements, including parameters such as mold shape, size and pore structure, and generate a molding die design plan;

[0025] S3.2: Based on step S2.4, the adjusted pulp mixture is injected into the forming mold, and the pulp is filled into every corner of the mold by vibration or compaction to generate a fully filled pulp mold; then the mold filled with pulp is pressed into facial paper by a high-temperature and high-pressure forming machine, and finally the pressed corrugated cardboard is sent to a drying device, and the water inside the cardboard is evaporated by controlling parameters such as temperature and humidity, thereby strengthening the cardboard structure and generating dry and hardened facial paper;

[0026] S3.3: According to the characteristics of the face paper and corrugated core paper, glue is applied to them. The face paper is coated with glue using a coating machine to ensure that the coating is uniform and the adhesion is moderate to improve the bonding strength of the paperboard. Then, the coating effect is detected by a sensor, and the quality is evaluated through image processing technology to ensure that the coating achieves the expected effect and generates a coating effect that meets the requirements;

[0027] S3.4: According to the specifications of the corrugated core paper and the face paper, the pressure, temperature and other parameters of the laminating machine are set to ensure the smooth laminating process. Then, the alignment of the corrugated core paper and the face paper is adjusted using computer vision technology to ensure the accuracy of the laminating process and generate the result of accurate alignment of the corrugated core paper and the face paper. After the adjustment, the laminating machine is started and the corrugated core paper and the face paper are tightly combined by the pressing technology to form a composite structure, thereby generating a corrugated board with a complete composite structure.

[0028] S3.5: The surface of corrugated paper is treated with environmentally friendly coating technology to increase its waterproof and moisture-proof properties. At the same time, the cardboard is treated with biodegradable technology to improve its degradability, thereby generating environmentally friendly treated and coated corrugated paper with enhanced waterproof and moisture-proof properties, ensuring better sustainability in terms of biodegradability.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention can save resources and be environmentally friendly during the production process of corrugated paper by utilizing environmentally friendly glue and high energy consumption control technology, thereby reducing environmental pollution. By using biodegradable composite corrugated paper materials, recycled fiber materials can be compounded with biodegradable polymers, so that corrugated paper can be quickly degraded after use, reducing pollution to the environment. Moreover, by coating the surface of the corrugated paper, its waterproof and moisture-proof properties can be increased.

[0031] 2. The present invention uses a forming machine to form the pulp mixture into face paper, and then uses a coating technology to coat the surface of the face paper with glue or other adhesives to enhance the bonding strength of the paperboard, and feeds the treated corrugated core paper and face paper into a laminating machine, and uses lamination and hot pressing technology to compound them together to form a corrugated paper with a composite structure, thereby generating a corrugated paperboard with a complete composite structure.

[0032] 3. The present invention can respond to changes in market demand and improve the adaptability and flexibility of the production line by quickly converting the production of corrugated paper of different specifications and models. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is the work flow chart of the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] The invention provides a corrugated paper with a composite structure, which comprises the following components by weight: 40-30 parts of waste paper, 35-20 parts of wood pulp, 20-15 parts of straw pulp, 13-10 parts of environmentally friendly glue and 15-8 parts of additives.

[0036] The corrugated paper of the composite structure includes the following components by weight: 35 parts of waste paper, 28 parts of wood pulp, 16 parts of straw pulp, 11 parts of environmentally friendly glue and 10 parts of additives.

[0037] The additives include 20-22 parts of starch, 22-13 parts of resin, 13-18 parts of waterproofing agent, 8-10 parts of reinforcing agent, 8-5 parts of antioxidant, 12-6 parts of defoaming agent, 9-4 parts of surface treatment agent, 8-3 parts of fire retardant and 5-2 parts of antibacterial agent.

[0038] An automated production process for corrugated paper of a composite structure comprises the following steps:

[0039] S1: First, select and pre-process the raw materials. Use image recognition technology to automatically classify and inspect the quality of the raw materials to ensure that the selected cardboard meets the requirements. Use pre-processing algorithms to process the raw materials, remove impurities, adjust humidity, and generate pre-processed high-quality raw materials.

[0040] S2: Based on the results of S1, different types of raw materials are proportioned according to the requirements, and various raw materials are mixed to ensure that the composition of the mixture meets the design requirements and generate a reasonably formulated pulp mixture;

[0041] S3: Based on the pulp mixture prepared in S2, the pulp mixture is formed into face paper by a forming machine, and then glue or other adhesives are coated on the surface of the face paper by coating technology to enhance the bonding strength of the paperboard, and the treated corrugated core paper and face paper are fed into a laminating machine, and they are laminated together by lamination and hot pressing technology to form a composite structure of corrugated paper, thereby generating a corrugated paperboard with a complete composite structure;

[0042] By using environmentally friendly glue and high-energy consumption control technology, corrugated paper can be resource-saving and environmentally friendly during the production process, reducing environmental pollution. Through biodegradable composite corrugated paper materials, recycled fiber materials can be compounded with biodegradable polymers, which can enable corrugated paper to degrade quickly after use and reduce pollution to the environment. And by coating the surface of corrugated paper, its waterproof and moisture-proof properties can be increased.

[0043] The S1 step includes the following steps:

[0044] S1.1: Raw material image recognition and classification: Use high-resolution cameras or sensors to collect images of raw materials and then perform raw material image recognition, and then use support vector machines for classification to ensure that the selected materials meet the requirements and generate classified raw material data;

[0045] S1.2: Raw material quality inspection: Through raw material quality inspection, sensors are used to collect parameters such as humidity and density of raw materials, and quality inspection is performed through statistical methods to screen out raw materials that meet the requirements and generate raw material data that meet the requirements;

[0046] S1.3: Raw material pretreatment: According to the quality inspection results in step S1.2, the raw materials are pretreated, including denoising, removing impurities, adjusting humidity, etc., to ensure that they are suitable for subsequent production and generate pretreated raw materials.

[0047] The S2 step includes the following steps:

[0048] S2.1: Ratio optimization: Based on product requirements and raw material properties, an optimization algorithm is used to optimize the ratio of different types of raw materials to obtain the best finished product performance and generate an optimized raw material ratio plan;

[0049] S2.2: Pulp preparation: Based on the optimized ratio scheme in step S2.1, various raw materials are mixed in a certain proportion, and a proper amount of water is added for stirring, and finally a uniform pulp is formed to generate a reasonably formulated pulp mixture;

[0050] S2.3: Pulp quality testing: Use pulp quality testing equipment to test the quality of the prepared pulp, including measuring the pH value, concentration, viscosity and other parameters of the pulp, and generating quality qualified pulp data;

[0051] S2.4: Pulp adjustment: According to the quality test results in step S2.3, the composition of the pulp is adjusted, the amount of water added is adjusted, and fiber reinforcement is added to ensure that the quality of the pulp meets the requirements, and an adjusted pulp mixture is generated.

[0052] The S3 step includes the following steps:

[0053] S3.1: Design a suitable molding die according to product requirements, including parameters such as mold shape, size and pore structure, and generate a molding die design plan;

[0054] S3.2: Based on step S2.4, the adjusted pulp mixture is injected into the forming mold, and the pulp is filled into every corner of the mold by vibration or compaction to generate a fully filled pulp mold; then the mold filled with pulp is pressed into facial paper by a high-temperature and high-pressure forming machine, and finally the pressed corrugated cardboard is sent to a drying device, and the water inside the cardboard is evaporated by controlling parameters such as temperature and humidity, thereby strengthening the cardboard structure and generating dry and hardened facial paper;

[0055] S3.3: According to the characteristics of the face paper and corrugated core paper, glue is applied to them. The face paper is coated with glue using a coating machine to ensure that the coating is uniform and the adhesion is moderate to improve the bonding strength of the paperboard. Then, the coating effect is detected by a sensor, and the quality is evaluated through image processing technology to ensure that the coating achieves the expected effect and generates a coating effect that meets the requirements;

[0056] S3.4: According to the specifications of the corrugated core paper and the face paper, the pressure, temperature and other parameters of the laminating machine are set to ensure the smooth laminating process. Then, the alignment of the corrugated core paper and the face paper is adjusted using computer vision technology to ensure the accuracy of the laminating process and generate the result of accurate alignment of the corrugated core paper and the face paper. After the adjustment, the laminating machine is started and the corrugated core paper and the face paper are tightly combined by the pressing technology to form a composite structure, thereby generating a corrugated board with a complete composite structure.

[0057] S3.5: The surface of corrugated paper is treated with environmentally friendly coating technology to increase its waterproof and moisture-proof properties. At the same time, the cardboard is treated with biodegradable technology to improve its degradability, thereby generating environmentally friendly treated and coated corrugated paper with enhanced waterproof and moisture-proof properties, ensuring better sustainability in terms of biodegradability.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corrugated paper with a composite structure, characterized in that: The invention comprises the following components by weight: 40-30 parts of waste paper, 35-20 parts of wood pulp, 20-15 parts of straw pulp, 13-10 parts of environmentally friendly glue and 15-8 parts of additives.

2. The corrugated paper of the composite structure according to claim 1, characterized in that: The corrugated paper of the composite structure comprises the following components by weight: 35 parts of waste paper, 28 parts of wood pulp, 16 parts of straw pulp, 11 parts of environmentally friendly glue and 10 parts of additives.

3. The corrugated paper of the composite structure according to claim 2, characterized in that: The additives include 20-22 parts of starch, 22-13 parts of resin, 13-18 parts of waterproofing agent, 8-10 parts of reinforcing agent, 8-5 parts of antioxidant, 12-6 parts of defoaming agent, 9-4 parts of surface treatment agent, 8-3 parts of fire retardant and 5-2 parts of antibacterial agent.

4. An automated production process for corrugated paper of a composite structure, characterized in that: The following steps are involved: S1: First, select and pre-process the raw materials. Use image recognition technology to automatically classify and inspect the quality of the raw materials to ensure that the selected cardboard meets the requirements. Use pre-processing algorithms to process the raw materials, remove impurities, adjust humidity, and generate pre-processed high-quality raw materials. S2: Based on the results of S1, different types of raw materials are proportioned according to the requirements, and various raw materials are mixed to ensure that the composition of the mixture meets the design requirements and generate a reasonably formulated pulp mixture; S3: Based on the pulp mixture prepared in S2, the pulp mixture is formed into face paper using a forming machine, and then glue or other adhesives are coated on the surface of the face paper using coating technology to enhance the bonding strength of the cardboard. The treated corrugated core paper and face paper are fed into a laminating machine, and they are compounded together using lamination and hot pressing technology to form a corrugated paper with a composite structure, thereby generating a corrugated board with a complete composite structure.

5. The automated production process of corrugated paper with a composite structure according to claim 4, characterized in that: The step S1 includes the following steps: S1.1: Raw material image recognition and classification: Use high-resolution cameras or sensors to collect images of raw materials and then perform raw material image recognition, and then use support vector machines for classification to ensure that the selected materials meet the requirements and generate classified raw material data; S1.2: Raw material quality inspection: Through raw material quality inspection, sensors are used to collect parameters such as humidity and density of raw materials, and quality inspection is performed through statistical methods to screen out raw materials that meet the requirements and generate raw material data that meet the requirements; S1.3: Raw material pretreatment: According to the quality inspection results in step S1.2, the raw materials are pretreated, including denoising, removing impurities, and adjusting humidity, to ensure that they are suitable for subsequent production and generate pretreated raw materials.

6. The automated production process of corrugated paper with a composite structure according to claim 4, characterized in that: The step S2 includes the following steps: S2.1: Ratio optimization: Based on product requirements and raw material properties, an optimization algorithm is used to optimize the ratio of different types of raw materials to obtain the best finished product performance and generate an optimized raw material ratio plan; S2.2: Pulp preparation: Based on the optimized ratio scheme in step S2.1, various raw materials are mixed in a certain proportion, and a proper amount of water is added for stirring, and finally a uniform pulp is formed to generate a reasonably formulated pulp mixture; S2.3: Pulp quality testing: Use pulp quality testing equipment to test the quality of the prepared pulp, including measuring the pH value, concentration and viscosity parameters of the pulp, and generating quality qualified pulp data; S2.4: Pulp adjustment: According to the quality test results in step S2.3, the composition of the pulp is adjusted, the amount of water added is adjusted, and fiber reinforcement is added to ensure that the quality of the pulp meets the requirements, and an adjusted pulp mixture is generated.

7. The automated production process of corrugated paper with a composite structure according to claim 4, characterized in that: The S3 step includes the following steps: S3.1: Design a suitable molding die according to product requirements, including mold shape, size and pore structure parameters, and generate a molding die design plan; S3.2: Based on step S2.4, the adjusted pulp mixture is injected into the forming mold, and the pulp is filled into every corner of the mold by vibration or compaction to generate a fully filled pulp mold; then the mold filled with pulp is pressed into facial paper by a high-temperature and high-pressure forming machine, and finally the pressed corrugated cardboard is sent to a drying device, and the water inside the cardboard is evaporated by controlling the temperature and humidity parameters, so as to strengthen the cardboard structure and generate dry and hardened facial paper; S3.3: According to the characteristics of the face paper and corrugated core paper, glue is applied to them. The face paper is coated with glue using a coating machine to ensure that the coating is uniform and the adhesion is moderate to improve the bonding strength of the paperboard. Then, the coating effect is detected by a sensor, and the quality is evaluated through image processing technology to ensure that the coating achieves the expected effect and generates a coating effect that meets the requirements; S3.4: According to the specifications of the corrugated core paper and the face paper, the pressure and temperature parameters of the laminating machine are set to ensure the smooth laminating process. Then, the alignment of the corrugated core paper and the face paper is adjusted by using computer vision technology to ensure the accuracy of the laminating process and generate the result of accurate alignment of the corrugated core paper and the face paper. After the adjustment, the laminating machine is started and the corrugated core paper and the face paper are tightly combined by the pressing technology to form a composite structure, thereby generating a corrugated board with a complete composite structure. S3.5: The surface of corrugated paper is treated with environmentally friendly coating technology to increase its waterproof and moisture-proof properties. At the same time, the cardboard is treated with biodegradable technology to improve its degradability, thereby generating environmentally friendly treated and coated corrugated paper with enhanced waterproof and moisture-proof properties, ensuring better sustainability in terms of biodegradability.

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