CN107641994A - A kind of method that high grade of transparency copy paper is prepared using pulp from decoloured waste paper - Google Patents
A kind of method that high grade of transparency copy paper is prepared using pulp from decoloured waste paper Download PDFInfo
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- CN107641994A CN107641994A CN201711078044.6A CN201711078044A CN107641994A CN 107641994 A CN107641994 A CN 107641994A CN 201711078044 A CN201711078044 A CN 201711078044A CN 107641994 A CN107641994 A CN 107641994A
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- pulp
- deinking
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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
Abstract
The present invention relates to field of papermaking, a kind of method that high grade of transparency copy paper is prepared using pulp from decoloured waste paper is provided, solve prior art using secondary stock as copy paper transparency prepared by raw material is bad, deinking efficiency is poor, bad mechanical property the defects of, including following processing step:(1) secondary stock is collected, modified deinking agent is added and deinking is carried out to it;(2) sodium borohydride, diethyl pentetic acid, washing are added in the Deinking Pulp obtained by step (1) processing;(3) Deinking Pulp by washing is beaten, defibrination process, beating degree is 30~35 ° of SR;(4) softwood pulp is beaten, defibrination process, beating degree is 70~80 ° of SR;(5) slurry of step (3) and step (4) is mixed, is manufactured paper with pulp, dispersant is added with during manufacturing paper with pulp.
Description
Technical field
The present invention relates to field of papermaking, more particularly to a kind of side that high grade of transparency copy paper is prepared using pulp from decoloured waste paper
Method.
Background technology
Copy paper is a kind of at a relatively high high culture industrial paper of production difficulty, and its characteristic mainly has higher physics strong
Degree, the excellent uniformity and transparency, and good surface nature are fine and smooth, smooth, smooth, without husky, the good printability of bubble
Property.Its purposes is very extensive, available for printing industry, garment packaging etc., and has irreplaceable status.It is generally excellent to copy
The weight of shellfish paper is in 17~20g/m2Between, thin and great toughness.
Usual copy paper is to be used as original slurry by softwood pulp and broad-leaved slurry, cost costly, and with deinking
Slurry be used as raw material, and the defects of due to preparation technology, obtained copy paper transparency is bad, and mechanical performance is also poor, and ink removes
It is ineffective, often it is unable to reach national standard.
The content of the invention
Therefore, for above content, the present invention provides a kind of side that high grade of transparency copy paper is prepared using pulp from decoloured waste paper
Method, solving the copy that is prepared using secondary stock as raw material of prior art, paper transparency is bad, deinking efficiency is poor, bad mechanical property
Defect.
To reach above-mentioned purpose, the present invention is achieved by the following technical solutions:One kind is prepared using pulp from decoloured waste paper
The method of high grade of transparency copy paper, including following processing step:
(1) secondary stock is collected, modified deinking agent is added and deinking is carried out to it, the deinking agent of the modification is by following parts by weight
Each raw material composition:20~40 parts of dodecyl sodium sulfate, 10~16 parts of polyoxyethylene alkyl ether, 20~30 parts of propane diols, hydrogen
40~50 parts of sodium oxide molybdena, 10~15 parts of dimethyl diallyl ammonium chloride, 5~10 parts of Methacrylamide, EDTA3~5 part, season
Penta 10~20 parts of tetra-acrylate;During deinking, temperature control is at 75~85 DEG C, and deinking handles 30~60min, deinking agent
Dosage is the 3~8% of secondary stock weight, obtains Deinking Pulp;
(2) sodium borohydride, diethyl pentetic acid, washing are added in the Deinking Pulp obtained by step (1) processing;
(3) Deinking Pulp by washing is beaten, defibrination process, beating degree is 30~35 ° of SR;
(4) softwood pulp is beaten, defibrination process, beating degree is 70~80 ° of SR;
(5) slurry of step (3) and step (4) is mixed, is manufactured paper with pulp, dispersant is added with during manufacturing paper with pulp.
Further improving is:Dispersant described in step (5) is polyacrylamide.
Further improving is:The dosage of sodium borohydride and diethyl pentetic acid is Deinking Pulp weight in step (2)
10~15wt%, 4~8wt%.
By using preceding solution, the beneficial effects of the invention are as follows:The application pulp from decoloured waste paper of the present invention prepares high
The method of transparency copy paper, by using modified deinking agent and sodium borohydride, diethyl pentetic acid, make in secondary stock
Ink be preferably removed, metal present in ink is chelated by diethyl pentetic acid, and modified deinking agent is using following
Each raw material composition of parts by weight:20~40 parts of dodecyl sodium sulfate, 10~16 parts of polyoxyethylene alkyl ether, propane diols 20~30
Part, 40~50 parts of sodium hydroxide, 10~15 parts of dimethyl diallyl ammonium chloride, 5~10 parts of Methacrylamide, EDTA3~5
Part, 10~20 parts of tetramethylol methane tetraacrylate, can be with containing surfactant, chelating agent, highly basic etc. in modified deinking agent
Effective removing ink.The present invention is using pulp from decoloured waste paper as raw material, and Deinking Pulp is separately beaten with softwood pulp, is improved
Regularity, the guarantee paper-forming evenness of fiber, while the good characteristic of wood pulp intensity is given full play to again, obtained copy paper cost drop
Low, mechanical performance is preferable, and transparency is high.
Embodiment
Embodiments of the present invention are described in detail below with reference to specific embodiment, and how skill is applied to the present invention whereby
Art means solve technical problem, and the implementation process for reaching technique effect can fully understand and implement according to this.
Unless otherwise specified, the conventional hand that the technological means employed in embodiment is well known to those skilled in the art
Section, used reagent and product are also available commercial.The source of agents useful for same, trade name and it is necessary to list it
Constituent person, indicate on the first appearance.
Embodiment one
A kind of method that high grade of transparency copy paper is prepared using pulp from decoloured waste paper, including following processing step:
(1) secondary stock is collected, modified deinking agent is added and deinking is carried out to it, the deinking agent of the modification is by following parts by weight
Each raw material composition:20 parts of dodecyl sodium sulfate, 10 parts of polyoxyethylene alkyl ether, 20 parts of propane diols, 40 parts of sodium hydroxide, two
10 parts of methyl diallyl ammonium chloride, 5 parts of Methacrylamide, EDTA3 parts, 10 parts of tetramethylol methane tetraacrylate;During deinking,
Temperature control is at 75 DEG C, and deinking processing 30min, the dosage of deinking agent is the 3% of secondary stock weight, obtains Deinking Pulp;
(2) sodium borohydride, diethyl pentetic acid, washing are added in the Deinking Pulp obtained by step (1) processing;
The dosage of sodium borohydride and diethyl pentetic acid is 10wt%, 4wt% of Deinking Pulp weight;
(3) Deinking Pulp by washing is beaten, defibrination process, beating degree is 30 ° of SR;
(4) softwood pulp is beaten, defibrination process, beating degree is 70 ° of SR;
(5) slurry of step (3) and step (4) is mixed, is manufactured paper with pulp, polyacrylamide is added with during manufacturing paper with pulp,
The dosage of the polyacrylamide is the 2% of Deinking Pulp weight.
Embodiment two
A kind of method that high grade of transparency copy paper is prepared using pulp from decoloured waste paper, including following processing step:
(1) secondary stock is collected, modified deinking agent is added and deinking is carried out to it, the deinking agent of the modification is by following parts by weight
Each raw material composition:30 parts of dodecyl sodium sulfate, 13 parts of polyoxyethylene alkyl ether, 25 parts of propane diols, 45 parts of sodium hydroxide, two
12 parts of methyl diallyl ammonium chloride, 8 parts of Methacrylamide, EDTA4 parts, 15 parts of tetramethylol methane tetraacrylate;During deinking,
Temperature control is at 80 DEG C, and deinking processing 45min, the dosage of deinking agent is the 5% of secondary stock weight, obtains Deinking Pulp;
(2) sodium borohydride, diethyl pentetic acid, washing are added in the Deinking Pulp obtained by step (1) processing;
The dosage of sodium borohydride and diethyl pentetic acid is the 13wt%, 6wt% of Deinking Pulp weight;
(3) Deinking Pulp by washing is beaten, defibrination process, beating degree is 33 ° of SR;
(4) softwood pulp is beaten, defibrination process, beating degree is 80 ° of SR;
(5) slurry of step (3) and step (4) is mixed, is manufactured paper with pulp, polyacrylamide is added with during manufacturing paper with pulp,
The dosage of the polyacrylamide is the 3% of Deinking Pulp weight.
Embodiment three
A kind of method that high grade of transparency copy paper is prepared using pulp from decoloured waste paper, including following processing step:
(1) secondary stock is collected, modified deinking agent is added and deinking is carried out to it, the deinking agent of the modification is by following parts by weight
Each raw material composition:40 parts of dodecyl sodium sulfate, 16 parts of polyoxyethylene alkyl ether, 30 parts of propane diols, 50 parts of sodium hydroxide, two
15 parts of methyl diallyl ammonium chloride, 10 parts of Methacrylamide, EDTA5 parts, 20 parts of tetramethylol methane tetraacrylate;Deinking
When, temperature control is at 85 DEG C, and deinking processing 60min, the dosage of deinking agent is the 8% of secondary stock weight, obtains Deinking Pulp;
(2) sodium borohydride, diethyl pentetic acid, washing are added in the Deinking Pulp obtained by step (1) processing;
The dosage of sodium borohydride and diethyl pentetic acid is 15wt%, 8wt% of Deinking Pulp weight;
(3) Deinking Pulp by washing is beaten, defibrination process, beating degree is 35 ° of SR;
(4) softwood pulp is beaten, defibrination process, beating degree is 80 ° of SR;
(5) slurry of step (3) and step (4) is mixed, is manufactured paper with pulp, polyacrylamide is added with during manufacturing paper with pulp,
The dosage of the polyacrylamide is the 5% of Deinking Pulp weight.
It is the measuring mechanical property of copy paper made from the embodiment of the present invention one to three below:
Described in above, only this wound is used using the embodiment of this origination techniques content, any those skilled in the art
Make done modifications and changes, all belong to the scope of the claims of this creation opinion, and be not limited to those disclosed embodiments.
Claims (4)
- A kind of 1. method that high grade of transparency copy paper is prepared using pulp from decoloured waste paper, it is characterised in that including following processing step:(1) secondary stock is collected, modified deinking agent is added and deinking is carried out to it, the deinking agent of the modification is by each of following parts by weight Raw material forms:20~40 parts of dodecyl sodium sulfate, 10~16 parts of polyoxyethylene alkyl ether, 20~30 parts of propane diols, hydroxide 40~50 parts of sodium, 10~15 parts of dimethyl diallyl ammonium chloride, 5~10 parts of Methacrylamide, EDTA3~5 part, Ji Wusi 10~20 parts of alcohol tetraacrylate;During deinking, for temperature control at 75~85 DEG C, deinking handles 30~60min, the dosage of deinking agent For the 3~8% of secondary stock weight, Deinking Pulp is obtained;(2) sodium borohydride, diethyl pentetic acid, washing are added in the Deinking Pulp obtained by step (1) processing;(3) Deinking Pulp by washing is beaten, defibrination process, beating degree is 30~35 ° of SR;(4) softwood pulp is beaten, defibrination process, beating degree is 70~80 ° of SR;(5) slurry of step (3) and step (4) is mixed, is manufactured paper with pulp, dispersant is added with during manufacturing paper with pulp.
- 2. a kind of method that high grade of transparency copy paper is prepared using pulp from decoloured waste paper according to claim 1, its feature exist In:Dispersant described in step (5) is polyacrylamide.
- 3. a kind of method that high grade of transparency copy paper is prepared using pulp from decoloured waste paper according to claim 2, its feature exist In:The dosage of sodium borohydride and diethyl pentetic acid is 10~15wt%, the 4~8wt% of Deinking Pulp weight in step (2).
- A kind of 4. method that high transparency copy paper is prepared using pulp from decoloured waste paper according to claim 2, it is characterised in that: The dosage of the polyacrylamide is the 2~5 of Deinking Pulp weight.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108978319A (en) * | 2018-07-12 | 2018-12-11 | 福建省晋江优兰发纸业有限公司 | A kind of Novel copying paste-making method made of paper |
CN109403141A (en) * | 2018-07-13 | 2019-03-01 | 福建省晋江优兰发纸业有限公司 | A method of copy paper is produced using waste stainless steel lining paper |
Citations (6)
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JP4255577B2 (en) * | 1999-09-01 | 2009-04-15 | 株式会社日本触媒 | Deinking agent |
CN101775749A (en) * | 2010-03-05 | 2010-07-14 | 杨树香 | Deinking, bleaching and treating process of waste paper |
CN104098747A (en) * | 2014-07-10 | 2014-10-15 | 浙江九本生物化学有限公司 | Preparation method of fluorescence eliminating agent |
CN204401364U (en) * | 2015-01-06 | 2015-06-17 | 浙江华川实业集团有限公司 | The colored tissue paper of a kind of light basis weight |
CN105951523A (en) * | 2016-06-27 | 2016-09-21 | 福建省晋江优兰发纸业有限公司 | Production method of low gram weight copy paper |
CN205821883U (en) * | 2016-05-25 | 2016-12-21 | 福建省晋江优兰发纸业有限公司 | A kind of beating mill disk being applied to the production of high beating degree copy paper |
-
2017
- 2017-11-04 CN CN201711078044.6A patent/CN107641994A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4255577B2 (en) * | 1999-09-01 | 2009-04-15 | 株式会社日本触媒 | Deinking agent |
CN101775749A (en) * | 2010-03-05 | 2010-07-14 | 杨树香 | Deinking, bleaching and treating process of waste paper |
CN104098747A (en) * | 2014-07-10 | 2014-10-15 | 浙江九本生物化学有限公司 | Preparation method of fluorescence eliminating agent |
CN204401364U (en) * | 2015-01-06 | 2015-06-17 | 浙江华川实业集团有限公司 | The colored tissue paper of a kind of light basis weight |
CN205821883U (en) * | 2016-05-25 | 2016-12-21 | 福建省晋江优兰发纸业有限公司 | A kind of beating mill disk being applied to the production of high beating degree copy paper |
CN105951523A (en) * | 2016-06-27 | 2016-09-21 | 福建省晋江优兰发纸业有限公司 | Production method of low gram weight copy paper |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108978319A (en) * | 2018-07-12 | 2018-12-11 | 福建省晋江优兰发纸业有限公司 | A kind of Novel copying paste-making method made of paper |
CN109403141A (en) * | 2018-07-13 | 2019-03-01 | 福建省晋江优兰发纸业有限公司 | A method of copy paper is produced using waste stainless steel lining paper |
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Application publication date: 20180130 |