CN104631201A - Process for producing low-gram-weight and high-strength heavy packaging craft paper by waste paper recycling - Google Patents
Process for producing low-gram-weight and high-strength heavy packaging craft paper by waste paper recycling Download PDFInfo
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- CN104631201A CN104631201A CN201510008443.XA CN201510008443A CN104631201A CN 104631201 A CN104631201 A CN 104631201A CN 201510008443 A CN201510008443 A CN 201510008443A CN 104631201 A CN104631201 A CN 104631201A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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Abstract
The invention discloses a process for producing low-gram-weight and high-strength heavy packaging craft paper by waste paper recycling. The process comprises the following steps: (1) waste paper pretreatment: after waste paper is crushed, carrying out deinking treatment on the crushed paper by using a deinking agent, so that a waste paper material is obtained; (2) pulping: by taking needlebush and the waste paper material obtained in the step (1) as raw materials, cooking the raw materials by using a sulfate method, adding cassava starch, an antibacterial agent and a strengthening agent in the process of cooking, adding a bio-enzyme and polyacrylamide to obtained paper pulp, carrying out beating on the obtained mixture, and separating out long-fiber paper pulp from obtained paper pulp by using a fiber classifying screen; and (3) papermaking: carrying out papermaking on the long-fiber paper pulp obtained in the step (2), so that craft paper finished products are obtained. According to the invention, the power consumption produced by beating paper pulp per ton is reduced; the application amount of wood pulp is greatly reduced, thereby saving the cost, and reducing the pollution caused by white water discharge produced by internal sizing to the environment; 0.02 tons of steam is reduced in the production process of paper per ton; and 80 kg/t of wood pulp is saved in the production process of paper per ton.
Description
technical field:
The present invention relates to the technique that a kind of waste paper recycling produces low gram weight and high strength degree heavy wrapping craft paper, belong to pulp technology for making paper.
background technology:
In recent years, along with the continuous minimizing of China's timber resources, natural environment worsens increasingly, reduces timber cutting capacity, and the use that research and development new packaging material replaces timber is more and more subject to social attention.Much emerging packaging material as the electronic apparatus packing case etc. of highly intensified corrugated paper composite plate, 3A heavy corrugated cardboard, high assignments, by become paper wrapper market advantage with paper for wooden packing material.Traditional heavy corrugated cardboard is equipped with corrugated board made by high performance corrugating medium by high grammes per square metre, high performance craft paper, and this cardboard has good side pressure strength, pop strength and Punctured Strength.Under same package design form, the impact of craft paper on heavy corrugated case performance plays a key effect, and import Russia ox card blocks to use with U.S. of the U.S. usually in the industry at present.
summary of the invention:
The present invention seeks to, be used for making up the deficiencies in the prior art, and provide a kind of waste paper recycling to produce the technique of low gram weight and high strength degree heavy wrapping craft paper.
To achieve these goals, technical scheme of the present invention is as follows:
Waste paper recycling produces a technique for low gram weight and high strength degree heavy wrapping craft paper, comprises following step:
(1) waste paper preliminary treatment: waste paper is carried out deinking process with deinking agent to shredded paper after pulverizing, obtains waste paper material;
(2) slurrying: with the waste paper material obtained in needlebush and step (1) for raw material, sulfate process is adopted to carry out boiling to raw material, tapioca, antiseptic and reinforcing agent is added during boiling, in the paper pulp obtained, add biology enzyme and polyacrylamide is pulled an oar, the paper pulp obtained adopts fractionating screen to isolate long fibered pulp;
(3) papermaking: the long fibered pulp obtained in step (2) is carried out papermaking, obtains finished product craft paper.
Described a kind of waste paper recycling produces the technique of low gram weight and high strength degree heavy wrapping craft paper, and in step (2), when adopting kraft cooking, digestion time is 3-4h, and boiling temperature is 150-180 DEG C, and the PH of liquid is 11-12.
Described a kind of waste paper recycling produces the technique of low gram weight and high strength degree heavy wrapping craft paper, and the tapioca added during boiling, antiseptic and reinforcing agent are 2-6%, 0.5-1.2% and 0.8-1.6% of raw material weight.
Described a kind of waste paper recycling produces the technique of low gram weight and high strength degree heavy wrapping craft paper, and described antiseptic is ammonium dihydrogen phosphate (ADP) or quaternary ammonium salt.
Described a kind of waste paper recycling produces the technique of low gram weight and high strength degree heavy wrapping craft paper, and described reinforcing agent is epoxy resin, pentaerythrite or polyvinyl alcohol.
Described a kind of waste paper recycling produces the technique of low gram weight and high strength degree heavy wrapping craft paper, and the weight ratio of the waste paper material obtained in described needlebush and step (1) is 1:3.
Described a kind of waste paper recycling produces the technique of low gram weight and high strength degree heavy wrapping craft paper, and the biology enzyme added in paper pulp and polyacrylamide are respectively 1-3% and 2-5% of pulp weight.
Beneficial effect of the present invention is as follows:
1, utilize biology enzyme to coordinate wood pulp making beating, improve beating degree, ensure fibre strength, reduce the power consumption during making beating of ton slurry;
2, select high-quality tapioca, optimize digesting technoloy and carry out top sizing, significantly reduce wood pulp consumption, reduce cost, reduce plasm-glue-blending simultaneously and produce the pollution of plain boiled water discharge to environment;
3, because utilize biology enzyme to decompose fiber, consume quantity of steam in paper web dry run and significantly reduce, ton paper reduces by 0.02 ton of steam;
4, utilize fiber classification, the long fiber isolating dry Net substitutes wood pulp, and wood pulp 80kg/t paper saved by paper per ton.
After testing, present invention process is produced each physical index of craft paper obtained and is: quantitatively: 230-280 g/m
2; Lateral loops pressure (index)≤13.0 N.m/g; Fracture length (MD)≤4.5 Km; Nai breaks Zhi Shuo≤3.8Kpa.m
2/ g.
detailed description of the invention:
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1
Waste paper recycling produces a technique for low gram weight and high strength degree heavy wrapping craft paper, comprises following step:
(1) waste paper preliminary treatment: waste paper is carried out deinking process with deinking agent to shredded paper after pulverizing, obtains waste paper material;
(2) slurrying: be mixed into raw material according to the waste paper material weight ratio 1:3 obtained in needlebush and step (1), sulfate process is adopted to carry out boiling to raw material, tapioca, ammonium dihydrogen phosphate (ADP) and epoxy resin is added during boiling, in the paper pulp obtained, add biology enzyme and polyacrylamide is pulled an oar, the paper pulp obtained adopts fractionating screen to isolate long fibered pulp;
(3) papermaking: the long fibered pulp obtained in step (2) is carried out papermaking, obtains finished product craft paper.
Wherein, in step (2), when adopting kraft cooking, digestion time is 3h, and boiling temperature is 180 DEG C, and the PH of liquid is 11; The tapioca added during boiling, antiseptic and reinforcing agent are 6%, 0.5% and 1.6% of raw material weight.The biology enzyme added in paper pulp and polyacrylamide are respectively 3% and 5% of pulp weight.
Embodiment 2
Waste paper recycling produces a technique for low gram weight and high strength degree heavy wrapping craft paper, comprises following step:
(1) waste paper preliminary treatment: waste paper is carried out deinking process with deinking agent to shredded paper after pulverizing, obtains waste paper material;
(2) slurrying: be mixed into raw material according to the waste paper material weight ratio 1:3 obtained in needlebush and step (1), sulfate process is adopted to carry out boiling to raw material, tapioca, quaternary ammonium salt and pentaerythrite is added during boiling, in the paper pulp obtained, add biology enzyme and polyacrylamide is pulled an oar, the paper pulp obtained adopts fractionating screen to isolate long fibered pulp;
(3) papermaking: the long fibered pulp obtained in step (2) is carried out papermaking, obtains finished product craft paper.
Wherein, in step (2), when adopting kraft cooking, digestion time is 4h, and boiling temperature is 150 DEG C, and the PH of liquid is 12; The tapioca added during boiling, antiseptic and reinforcing agent are 2%, 1.2% and 0.8% of raw material weight.The weight ratio of the waste paper material obtained in described needlebush and step (1) is 1:3.The biology enzyme added in paper pulp and polyacrylamide are respectively 1% and 2% of pulp weight.
Embodiment 3
Waste paper recycling produces a technique for low gram weight and high strength degree heavy wrapping craft paper, comprises following step:
(1) waste paper preliminary treatment: waste paper is carried out deinking process with deinking agent to shredded paper after pulverizing, obtains waste paper material;
(2) slurrying: be mixed into raw material according to the waste paper material weight ratio 1:3 obtained in needlebush and step (1), sulfate process is adopted to carry out boiling to raw material, tapioca, ammonium dihydrogen phosphate (ADP) and polyvinyl alcohol is added during boiling, in the paper pulp obtained, add biology enzyme and polyacrylamide is pulled an oar, the paper pulp obtained adopts fractionating screen to isolate long fibered pulp;
(3) papermaking: the long fibered pulp obtained in step (2) is carried out papermaking, obtains finished product craft paper.
Wherein, in step (2), when adopting kraft cooking, digestion time is 4h, and boiling temperature is 180 DEG C, and the PH of liquid is 12.The tapioca added during boiling, antiseptic and reinforcing agent are 4%, 0.8% and 1.2% of raw material weight.The biology enzyme added in paper pulp and polyacrylamide are respectively 2% and 4% of pulp weight.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (7)
1. waste paper recycling produces a technique for low gram weight and high strength degree heavy wrapping craft paper, it is characterized in that, comprises following step:
(1) waste paper preliminary treatment: waste paper is carried out deinking process with deinking agent to shredded paper after pulverizing, obtains waste paper material;
(2) slurrying: with the waste paper material obtained in needlebush and step (1) for raw material, sulfate process is adopted to carry out boiling to raw material, tapioca, antiseptic and reinforcing agent is added during boiling, in the paper pulp obtained, add biology enzyme and polyacrylamide is pulled an oar, the paper pulp obtained adopts fractionating screen to isolate long fibered pulp;
(3) papermaking: the long fibered pulp obtained in step (2) is carried out papermaking, obtains finished product craft paper.
2. a kind of waste paper recycling according to claim 1 produces the technique of low gram weight and high strength degree heavy wrapping craft paper, it is characterized in that, in step (2), when adopting kraft cooking, digestion time is 3-4h, and boiling temperature is 150-180 DEG C, and the PH of liquid is 11-12.
3. a kind of waste paper recycling according to claim produces the technique of low gram weight and high strength degree heavy wrapping craft paper, and it is characterized in that, the tapioca added during boiling, antiseptic and reinforcing agent are 2-6%, 0.5-1.2% and 0.8-1.6% of raw material weight.
4. a kind of waste paper recycling according to claim 1 or 3 produces the technique of low gram weight and high strength degree heavy wrapping craft paper, and it is characterized in that, described antiseptic is ammonium dihydrogen phosphate (ADP) or quaternary ammonium salt.
5. a kind of waste paper recycling according to claim 1 or 3 produces the technique of low gram weight and high strength degree heavy wrapping craft paper, and it is characterized in that, described reinforcing agent is epoxy resin, pentaerythrite or polyvinyl alcohol.
6. a kind of waste paper recycling according to claim 1 produces the technique of low gram weight and high strength degree heavy wrapping craft paper, it is characterized in that, the weight ratio of the waste paper material obtained in described needlebush and step (1) is 1:3.
7. a kind of waste paper recycling according to claim 1 produces the technique of low gram weight and high strength degree heavy wrapping craft paper, and it is characterized in that, the biology enzyme added in paper pulp and polyacrylamide are respectively 1-3% and 2-5% of pulp weight.
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| CN201510008443.XA CN104631201B (en) | 2015-01-08 | 2015-01-08 | The technique that a kind of waste paper recycling produces low gram weight and high strength degree heavy wrapping craft paper |
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| CN201510008443.XA CN104631201B (en) | 2015-01-08 | 2015-01-08 | The technique that a kind of waste paper recycling produces low gram weight and high strength degree heavy wrapping craft paper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306636A (en) * | 2018-10-17 | 2019-02-05 | 马鞍山市康辉纸箱纸品有限公司 | A kind of processing method that waste and old wrapping paper enhancing recycles |
| CN109577067A (en) * | 2019-01-22 | 2019-04-05 | 深圳市裕嘉印刷包装有限公司 | The technique for preparing compound package material with waste paper, wood bamboo material |
| CN111206451A (en) * | 2018-11-22 | 2020-05-29 | 金华盛纸业（苏州工业园区）有限公司 | Pulping method of papermaking pulp and pulping auxiliary preparation |
| CN111851121A (en) * | 2020-08-10 | 2020-10-30 | 玖龙纸业(天津)有限公司 | Regenerated ox card and production method thereof |
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| CN111206451A (en) * | 2018-11-22 | 2020-05-29 | 金华盛纸业（苏州工业园区）有限公司 | Pulping method of papermaking pulp and pulping auxiliary preparation |
| CN109577067A (en) * | 2019-01-22 | 2019-04-05 | 深圳市裕嘉印刷包装有限公司 | The technique for preparing compound package material with waste paper, wood bamboo material |
| CN111851121A (en) * | 2020-08-10 | 2020-10-30 | 玖龙纸业(天津)有限公司 | Regenerated ox card and production method thereof |
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| CN104631201B (en) | 2017-01-04 |
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