CN114575181A - High-strength corrugated base paper prepared from domestic waste paper and preparation method thereof - Google Patents
High-strength corrugated base paper prepared from domestic waste paper and preparation method thereof Download PDFInfo
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- CN114575181A CN114575181A CN202210366980.1A CN202210366980A CN114575181A CN 114575181 A CN114575181 A CN 114575181A CN 202210366980 A CN202210366980 A CN 202210366980A CN 114575181 A CN114575181 A CN 114575181A
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- 239000010791 domestic waste Substances 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000010893 paper waste Substances 0.000 claims abstract description 49
- 239000000835 fiber Substances 0.000 claims abstract description 38
- 150000001875 compounds Chemical class 0.000 claims abstract description 31
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 28
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 16
- 229920002472 Starch Polymers 0.000 claims abstract description 11
- 235000019698 starch Nutrition 0.000 claims abstract description 11
- 239000008107 starch Substances 0.000 claims abstract description 11
- 239000000123 paper Substances 0.000 claims description 95
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 45
- 238000002156 mixing Methods 0.000 claims description 33
- 238000007865 diluting Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 15
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000002351 wastewater Substances 0.000 claims description 12
- 238000007872 degassing Methods 0.000 claims description 7
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 7
- -1 polysiloxane Polymers 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 7
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical group [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 239000004067 bulking agent Substances 0.000 claims description 4
- 239000011268 mixed slurry Substances 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 239000012744 reinforcing agent Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 238000004537 pulping Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000005406 washing Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003426 chemical strengthening reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003780 keratinization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/12—Making corrugated paper or board
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/32—Defibrating by other means of waste paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
- D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
The invention belongs to the technical field of pulping and papermaking, and discloses a high-strength corrugated base paper prepared from domestic waste paper and a preparation method thereof. The invention adds 1-2% of compound auxiliary agent in the process of waste paper raw material disintegration, improves the strength and binding force of waste paper fiber, and prepares qualified waste paper pulp, then adds starch, mixes uniformly, sends into a net fore-pool, mixes with concentrated white water under the net, dilutes, nets, dehydrates, shapes, extrudes and dries to prepare the high-strength corrugated raw paper. The preparation process is simple, only domestic waste paper is adopted for preparation, a large amount of chemical reinforcing agents are not needed, and the prepared corrugated base paper is high in strength and can meet the use requirements of high-grade products.
Description
Technical Field
The invention relates to the technical field of pulping and papermaking, in particular to a high-strength corrugated base paper prepared from domestic waste paper and a preparation method thereof.
Background
Corrugated medium is one of the important constituent materials for producing corrugated cardboard. The corrugated base paper requires good fiber bonding strength, flat paper surface, better tightness and stiffness and certain elasticity so as to ensure that the manufactured paper box has shock resistance and pressure resistance, and is divided into three grades of superior products, first-class products and qualified products according to the quality.
Generally, the main raw materials for producing the corrugated base paper are waste paper, and 30% of imported waste paper boxes and 70% of domestic waste paper boxes are adopted, but corrugated base paper production enterprises have to adopt 100% of domestic waste paper to produce the corrugated base paper due to the shortage of the imported waste paper, and the corrugated base paper produced by 100% of domestic waste paper can only be used for producing medium and low-grade products due to the fact that the domestic waste paper is recycled for many times, the fiber quality is reduced, the fiber keratinization is severe, the fiber elasticity is poor, and the binding force is low.
In order to meet the requirements of high-end customers, the strength of paper is improved by adding more chemical reinforcing agents in the prior production of high-strength corrugated base paper, but the use amount of the chemical reinforcing agents is increased, so that the production cost is increased, the pollution load of wastewater is increased, and the treatment cost of the wastewater is correspondingly increased.
Therefore, the need for improving the fiber quality of domestic waste paper to meet the production of high-strength corrugated base paper becomes urgent in the field.
Disclosure of Invention
In view of the above, the invention provides a high-strength corrugated medium prepared from domestic waste paper and a preparation method thereof, which solve the problem of poor quality of the corrugated medium produced by 100% domestic waste paper at present, and also solve the problems that the production cost is increased, the pollution load of waste water is increased, and the treatment cost of waste water is correspondingly increased due to the addition of a chemical reinforcing agent in the production of the high-strength corrugated medium at present.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for preparing high-strength corrugated base paper by using domestic waste paper, which comprises the following steps:
s1, waste paper pulp preparation: mixing domestic waste paper, water and a compound auxiliary agent, and dissociating and removing impurities from the mixture to obtain waste paper pulp;
s2, preparing slurry: mixing waste paper pulp with starch to obtain mixed pulp;
s3, washing and diluting: mixing the mixed pulp with thick white water, and then sequentially removing slag, degassing and screening to obtain screened pulp;
s4, manufacturing high-strength corrugated medium: spraying the upper wire sizing agent to the wire surface to be dehydrated, formed, extruded and dried to obtain high-strength corrugated raw paper;
the concentrated white water is water naturally separated from the mixed slurry on the net under the action of gravity.
Preferably, in the step S1, the mixing temperature is 60-70 ℃; the dissociated mixture is filamentous.
Preferably, in the step S1, the compound auxiliary agent includes the following components by mass percent: 20-40% of caustic soda flakes, 30-40% of fiber softener and 30-40% of fiber loosening agent.
Preferably, in the step S1, the compound auxiliary agent includes the following components by mass percent: 20-26% of caustic soda flakes, 37-40% of fiber softener and 37-40% of fiber bulking agent.
Preferably, in the step S1, the compound auxiliary agent includes the following components by mass percent: 36-40% of caustic soda flakes, 30-36% of fiber softener and 30-36% of fiber loosening agent.
Preferably, the fiber softener is polysiloxane, and the fiber relaxer is sodium polyacrylate.
Preferably, in step S1, the mixing manner of the domestic waste paper, water and the compounding aid is as follows: mixing domestic waste paper with water to obtain a waste paper mixture, and adding a compound auxiliary agent; the mass concentration of the waste paper mixture is 12-18%; the addition amount of the compound auxiliary agent is 1-2% of the quality of domestic waste paper.
Preferably, in step S2, the amount of starch added is 0.5 to 1% of the mass of domestic waste paper.
Preferably, in the step S3, the diluted slurry obtained by mixing is 0.7 to 1% by mass.
The invention also provides the high-strength corrugated base paper prepared by the method for preparing the high-strength corrugated base paper by using domestic waste paper.
According to the technical scheme, compared with the prior art, the invention has the following beneficial effects:
(1) the invention improves the quality of domestic waste paper to produce high-strength corrugated raw paper, improves the utilization rate of domestic waste paper and reduces the production cost;
(2) the invention produces the high-strength corrugated base paper by improving the quality of domestic waste paper, saves the using amount of chemical reinforcing agents, reduces the pollution load of waste water and reduces the treatment cost of the waste water;
(3) the invention produces the high-strength corrugated base paper by improving the quality of domestic waste paper, reduces the dependence on foreign waste paper, saves the cost and is suitable for popularization and application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a process flow chart of the invention for preparing high-strength corrugated medium by using domestic waste paper.
Detailed Description
The invention provides a method for preparing high-strength corrugated base paper by using domestic waste paper, which comprises the following steps:
s1, preparing waste paper pulp: mixing domestic waste paper, water and a compound auxiliary agent, and dissociating and removing impurities from the mixture to obtain waste paper pulp;
s2, preparing slurry: mixing waste paper pulp with starch to obtain mixed pulp;
s3, washing and diluting: mixing the mixed pulp with thick white water, and then sequentially removing slag, degassing and screening to obtain screened pulp;
s4, manufacturing high-strength corrugated medium: spraying the upper wire sizing agent to the wire surface to be dehydrated, formed, extruded and dried to obtain high-strength corrugated raw paper;
the concentrated white water is water naturally separated from the mixed slurry on the net under the action of gravity.
In the invention, in the step S1, the mixing temperature is preferably 60-70 ℃, and more preferably 65-68 ℃; the dissociated mixture is filamentous; the impurity removal is carried out in a waste paper slag remover; the mixing is carried out in a waste paper pulper, and the rotating speed of the waste paper pulper is 150-200 r/min.
In the invention, in the step S1, the compound auxiliary agent includes the following components by mass percent: 20-40% of caustic soda flakes, 30-40% of fiber softener and 30-40% of fiber loosening agent.
In the invention, in the step S1, the compound auxiliary agent includes the following components by mass percent: 20-26% of caustic soda flakes, 37-40% of fiber softener and 37-40% of fiber loosening agent.
In the invention, in the step S1, the compound auxiliary agent includes the following components by mass percent: 26-30% of caustic soda flakes, 35-37% of fiber softener and 35-37% of fiber loosening agent.
In the invention, in the step S1, the compound auxiliary agent includes the following components by mass percent: 30-36% of caustic soda flakes, 32-35% of fiber softener and 32-35% of fiber loosening agent.
In the invention, in the step S1, the compound auxiliary agent includes the following components by mass percent: 36-40% of flake caustic soda, 30-36% of fiber softener and 30-36% of fiber bulking agent.
In the invention, the fiber softener is polysiloxane, and the fiber bulking agent is sodium polyacrylate.
In the invention, in step S1, the mixing manner of domestic waste paper, water and compound auxiliary agent is as follows: mixing domestic waste paper with water to obtain a waste paper mixture, and adding a compound auxiliary agent; the mass concentration of the waste paper mixture is preferably 12-18%, and more preferably 14-17%; the addition amount of the compound auxiliary agent is preferably 1-2% of the mass of domestic waste paper, and more preferably 1.2-1.8% of the mass of the domestic waste paper.
In the present invention, in step S2, the addition amount of starch is preferably 0.5 to 1% of the mass of domestic waste paper, and more preferably 0.7 to 0.9% of the mass of domestic waste paper.
In the present invention, in the step S3, the mass concentration of the diluted slurry obtained by mixing is preferably 0.7 to 1%, and more preferably 0.85 to 0.95%.
In the present invention, in step S4, the upper web slurry is homogenized by the homogenizing roller of the headbox before being sprayed onto the web surface for dewatering, forming, extruding and drying.
The invention also provides the high-strength corrugated base paper prepared by the method for preparing the high-strength corrugated base paper by using domestic waste paper.
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
The compound auxiliary agent adopted in the embodiment comprises the following components in percentage by mass: 25% of flake caustic soda, 38% of polysiloxane and 37% of sodium polyacrylate;
the preparation process comprises the following steps:
s1, preparing slurry: adding water with the mass concentration of 85% into a domestic waste paper box with the mass concentration of 15% in a pulper, diluting at 60 ℃, adding a compound auxiliary agent accounting for 1% of the mass of the domestic waste paper box, dissociating waste paper into fiber filaments under the action of a rotor of the pulper, removing impurities in the waste paper filaments by an impurity separation device to prepare qualified waste paper pulp, and storing the qualified waste paper pulp in a waste paper pulp tank;
s2, preparing slurry: sending the waste paper pulp prepared in the step S1 into a pulp blending tank, adding starch accounting for 0.5 percent of the mass of the domestic waste paper box, stirring and mixing uniformly to obtain pulp, and sending the pulp into a pre-net tank;
s3, washing and diluting: mixing and diluting the pulp prepared in the step S2 and the thick white water below the front pond of the screen until the mass concentration of the pulp is 0.7%, and obtaining the pulp for the upper wire which meets the requirements of the upper wire papermaking after deslagging, degassing and screening;
s4, manufacturing high-strength corrugated base paper: and (3) pumping the screened pulp prepared in the step (S3) to a pulp box of a paper machine through a pulp pump, homogenizing the pulp through a pulp homogenizing roller of the pulp box, spraying the pulp to a net surface from a lip of the pulp box, dehydrating, forming, extruding and drying to obtain the high-strength corrugated base paper.
Example 2
The compound auxiliary agent adopted in the implementation comprises the following components in percentage by mass: 28% of flake caustic soda, 36% of polysiloxane and 36% of sodium polyacrylate;
the preparation process comprises the following steps:
s1, preparing slurry: adding water with the mass concentration of 85% into a domestic waste paper box with the mass concentration of 15% in a pulper, diluting at 63 ℃, adding a compound auxiliary agent accounting for 1.2% of the mass of the domestic waste paper box, dissociating waste paper into fiber filaments under the action of a rotor of the pulper, removing impurities in the waste paper filaments by an impurity separation device to prepare qualified waste paper pulp, and storing the qualified waste paper pulp in a waste paper pulp pond;
s2, preparing slurry: sending the waste paper pulp prepared in the step S1 into a pulp blending tank, adding starch accounting for 0.6 percent of the mass of the domestic waste paper box, stirring and mixing uniformly to obtain pulp, and sending the pulp into a pre-net tank;
s3, washing and diluting: mixing and diluting the pulp prepared in the step S2 and the thick white water below the front pond of the screen until the mass concentration of the pulp is 0.7%, and obtaining the pulp for the upper wire which meets the requirements of the upper wire papermaking after deslagging, degassing and screening;
s4, manufacturing high-strength corrugated base paper: and (3) pumping the screened pulp prepared in the step (S3) to a pulp box of a paper machine through a pulp pump, homogenizing the pulp through a pulp homogenizing roller of the pulp box, spraying the pulp to a net surface from a lip of the pulp box, dehydrating, forming, extruding and drying to obtain the high-strength corrugated base paper.
Example 3
The compound auxiliary agent adopted in the embodiment comprises the following components in percentage by mass: 35% of flake caustic soda, 33% of polysiloxane and 32% of sodium polyacrylate;
the preparation process comprises the following steps:
s1, preparing slurry: adding water with the mass concentration of 85% into a domestic waste paper box with the mass concentration of 15% in a pulper, diluting at 65 ℃, adding a compound auxiliary agent accounting for 1.5% of the mass of the domestic waste paper box, dissociating waste paper into fiber filaments under the action of a rotor of the pulper, removing impurities in the waste paper filaments by an impurity separation device to prepare qualified waste paper pulp, and storing the qualified waste paper pulp in a waste paper pulp pond;
s2, preparing slurry: sending the waste paper pulp prepared in the step S1 into a pulp blending pool, adding starch accounting for 0.8 percent of the mass of the domestic waste paper box, stirring and mixing uniformly to obtain pulp, and sending the pulp into a net fore-pool;
s3, washing and diluting: mixing and diluting the pulp prepared in the step S2 and the thick white water below the front pond of the screen until the mass concentration of the pulp is 0.8%, and obtaining the pulp for the upper wire which meets the requirements of the upper wire papermaking after deslagging, degassing and screening;
s4, manufacturing high-strength corrugated base paper: and (3) pumping the screened pulp prepared in the step (S3) to a pulp box of a paper machine through a pulp pump, homogenizing the pulp through a pulp homogenizing roller of the pulp box, spraying the pulp to a net surface from a lip of the pulp box, dehydrating, forming, extruding and drying to obtain the high-strength corrugated base paper.
Example 4
The compound auxiliary agent adopted in the embodiment comprises the following components in percentage by mass: 36% of flake caustic soda, 32% of polysiloxane and 32% of sodium polyacrylate;
the preparation process comprises the following steps:
s1, preparing slurry: adding water with the mass concentration of 85% into a domestic waste paper box with the mass concentration of 15% in a pulper, diluting at 70 ℃, adding a compound auxiliary agent accounting for 2% of the mass of the domestic waste paper box, dissociating waste paper into fiber filaments under the action of a rotor of the pulper, removing impurities in the waste paper filaments by an impurity separation device to prepare qualified waste paper pulp, and storing the qualified waste paper pulp in a waste paper pulp tank;
s2, preparing slurry: sending the waste paper pulp prepared in the step S1 into a pulp blending tank, adding starch accounting for 0.9 percent of the mass of the domestic waste paper box, stirring and mixing uniformly to obtain pulp, and sending the pulp into a pre-net tank;
s3, washing and diluting: mixing and diluting the pulp prepared in the step S2 and the thick white water below the front pond of the screen until the mass concentration of the pulp is 1%, and obtaining the upper screen pulp meeting the requirements of the upper screen papermaking after deslagging, degassing and screening;
s4, manufacturing high-strength corrugated base paper: and (3) pumping the screened pulp prepared in the step (S3) to a pulp box of a paper machine through a pulp pump, homogenizing the pulp through a pulp homogenizing roller of the pulp box, spraying the pulp to a net surface from a lip of the pulp box, dehydrating, forming, extruding and drying to obtain the high-strength corrugated base paper.
The performance of the high strength corrugated base paper obtained in examples 1 to 4 was tested, and the results are shown in table 1:
as can be seen from Table 1, the high-strength corrugated medium obtained by the invention is prepared from domestic waste paper only, the strength of the prepared corrugated medium is high, the transverse ring crush index is 8.2-11.3 Nm/g, the high-strength corrugated medium obtained by the invention has good compressive strength, the longitudinal fracture length is 4.6-5.3 km, and the high-strength corrugated medium obtained by the invention has good tensile strength and can meet the use requirements of high-grade products.
As can be seen from fig. 1, the high-strength corrugated medium of the present invention has a simple preparation process, does not require the use of a large amount of chemical strengthening agents, saves cost, and does not cause environmental pollution.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for preparing high-strength corrugated base paper by using domestic waste paper is characterized by comprising the following steps:
s1, waste paper pulp preparation: mixing domestic waste paper, water and a compound auxiliary agent, and dissociating and removing impurities from the mixture to obtain waste paper pulp;
s2, preparing slurry: mixing waste paper pulp with starch to obtain mixed pulp;
s3, slushing and diluting: mixing the mixed slurry with thick white water, sequentially removing slag, degassing and screening to obtain an upper-net slurry;
s4, manufacturing high-strength corrugated base paper: spraying the upper wire sizing agent to the wire surface to be dehydrated, formed, extruded and dried to obtain high-strength corrugated raw paper;
the concentrated white water is water naturally separated from the mixed slurry on the net under the action of gravity.
2. The method for preparing high-strength corrugated medium paper from domestic waste paper according to claim 1, wherein in step S1, the mixing temperature is 60-70 ℃; the dissociated mixture is filamentous.
3. The method for preparing high-strength corrugated medium paper by using domestic waste paper according to claim 2, wherein in step S1, the compound auxiliary comprises the following components in percentage by mass: 20-40% of caustic soda flakes, 30-40% of fiber softener and 30-40% of fiber bulking agent.
4. The method for preparing high-strength corrugated medium paper by using domestic waste paper according to claim 1, wherein in step S1, the compound auxiliary comprises the following components in percentage by mass: 20-26% of caustic soda flakes, 37-40% of fiber softener and 37-40% of fiber loosening agent.
5. The method for preparing high-strength corrugated base paper by using domestic waste paper according to claim 2, wherein in step S1, the compound auxiliary comprises the following components in percentage by mass: 36-40% of caustic soda flakes, 30-36% of fiber softener and 30-36% of fiber loosening agent.
6. The method for preparing high-strength corrugated base paper by using domestic waste paper according to any one of claims 3 to 5, wherein the fiber softener is polysiloxane and the fiber relaxer is sodium polyacrylate.
7. The method for preparing high-strength corrugated medium paper from domestic waste paper according to any one of claims 1 to 3, wherein in step S1, the domestic waste paper, water and the compound auxiliary agent are mixed in the following manner: mixing domestic waste paper with water to obtain a waste paper mixture, and adding a compound auxiliary agent; the mass concentration of the waste paper mixture is 12-18%; the addition amount of the compound auxiliary agent is 1-2% of the quality of domestic waste paper.
8. The method for preparing high-strength corrugated medium paper using domestic waste paper as claimed in claim 7, wherein in step S2, the amount of starch added is 0.5-1% of the mass of domestic waste paper.
9. The method for manufacturing high-strength corrugated medium paper using domestic waste paper as claimed in claim 8, wherein the diluted pulp obtained by mixing in step S3 has a mass concentration of 0.7-1%.
10. The high-strength corrugated medium paper prepared by the method for preparing the high-strength corrugated medium paper by using domestic waste paper according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210366980.1A CN114575181A (en) | 2022-04-08 | 2022-04-08 | High-strength corrugated base paper prepared from domestic waste paper and preparation method thereof |
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| CN202210366980.1A CN114575181A (en) | 2022-04-08 | 2022-04-08 | High-strength corrugated base paper prepared from domestic waste paper and preparation method thereof |
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|---|---|---|---|---|
| CN1603515A (en) * | 2004-11-09 | 2005-04-06 | 华东理工大学 | Method for manufacturing high strength fiber network sandwich paper |
| JP2006169668A (en) * | 2004-12-16 | 2006-06-29 | Daio Paper Corp | Method for removing ink from waste paper |
| CN101725069A (en) * | 2009-10-31 | 2010-06-09 | 华南理工大学 | Method for improving removal effect of ink in waste paper pulp |
| CN110144752A (en) * | 2019-06-04 | 2019-08-20 | 联盛纸业（龙海）有限公司 | A kind of production technology of high internal bond fluting medium |
| CN112695563A (en) * | 2020-12-31 | 2021-04-23 | 江苏理文造纸有限公司 | Treatment process for waste paper fiber microfibrillation |
-
2022
- 2022-04-08 CN CN202210366980.1A patent/CN114575181A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1603515A (en) * | 2004-11-09 | 2005-04-06 | 华东理工大学 | Method for manufacturing high strength fiber network sandwich paper |
| JP2006169668A (en) * | 2004-12-16 | 2006-06-29 | Daio Paper Corp | Method for removing ink from waste paper |
| CN101725069A (en) * | 2009-10-31 | 2010-06-09 | 华南理工大学 | Method for improving removal effect of ink in waste paper pulp |
| CN110144752A (en) * | 2019-06-04 | 2019-08-20 | 联盛纸业（龙海）有限公司 | A kind of production technology of high internal bond fluting medium |
| CN112695563A (en) * | 2020-12-31 | 2021-04-23 | 江苏理文造纸有限公司 | Treatment process for waste paper fiber microfibrillation |
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Inventor after: Chen Sijun Inventor after: Gao Fei Inventor after: Xi Shuyang Inventor after: Chen Yinuo Inventor after: Chen Wuping Inventor after: Ren Hao Inventor before: Huang Jijiao Inventor before: Yang Haoyu Inventor before: Chen Yinuo Inventor before: Chen Wuping Inventor before: Ren Hao Inventor before: Wang Haiyue Inventor before: Gao Fei Inventor before: Chen Sijun Inventor before: Xi Shuyang Inventor before: Li Peiyi |
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Application publication date: 20220603 |