CN107881839A - A kind of preparation method of high whiteness light offset paper - Google Patents
A kind of preparation method of high whiteness light offset paper Download PDFInfo
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- CN107881839A CN107881839A CN201710911819.7A CN201710911819A CN107881839A CN 107881839 A CN107881839 A CN 107881839A CN 201710911819 A CN201710911819 A CN 201710911819A CN 107881839 A CN107881839 A CN 107881839A
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- parts
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- offset paper
- paper
- light offset
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Classifications
-
- 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
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/10—Mixtures of chemical and mechanical pulp
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/30—Pretreatment of the paper
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Paper (AREA)
Abstract
The present invention relates to field of papermaking, there is provided a kind of preparation method of high whiteness light offset paper, solves the problems, such as that the offset paper oil absorbency of prior art is bad, the high whiteness light offset paper includes each raw material of following parts by weight：Bleached softwood starches 25~30 parts, bleaches 45~50 parts of broad-leaved slurry, 20~25 parts of reducing rules, 3~5 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, 5~10 parts of the starch that substitution value is 0.04.
Description
Technical field
The present invention relates to field of papermaking, more particularly to a kind of preparation method of high whiteness light offset paper.
Background technology
Light offset paper is also referred to as light paper, light weight papers, covers and agree paper, because its quality is slim and graceful, color is soft, printing effect is good
Good, paper is in light cream-coloured, no-reflection, has certain protective effect to eyes, therefore is welcome deeply by market, and recent domestic is got over
Printed come more primary and secondary teaching materials, medium-to-high grade books using it.
Existing offset paper is due to existing defects in its production technology so that and obtained paper printing ink absorbent properties are bad,
Such as China Patent No. 02111581.8 discloses a kind of light offset paper, is made up of paper pulp and chemical addition agent, described paper
Slurry is made up of groundwood pulp and pulp from decoloured waste paper, its match for groundwood pulp account for 70~80%, pulp from decoloured waste paper account for 20~
30%, groundwood pulp is made up of a certain proportion of softwood and broadleaf, and wherein the ratio of softwood and broadleaf is 85：
15.The offset paper is in light weight, bulk is high, but does not solve the problems, such as ink absorption still.
The content of the invention
Therefore, a kind of preparation method of high whiteness light offset paper is provided, solves existing skill for above content, the present invention
The problem of offset paper oil absorbency of art is bad.
To reach above-mentioned purpose, the present invention is achieved by the following technical solutions：A kind of high whiteness light offset paper
Preparation method, the high whiteness light offset paper include each raw material of following parts by weight：25~30 parts of bleached softwood slurry, bleaching are wealthy
45~50 parts of leaf slurry, 20~25 parts of reducing rules, 3~5 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, the shallow lake that substitution value is 0.04
5~10 parts of powder；
Including following processing step：
(1) bleached softwood slurry is prepared；
(2) bleaching broad-leaved slurry is prepared；
(3) reducing rules are prepared；
(4) it is with slurry：Above-mentioned bleached softwood slurry, bleaching broad-leaved slurry, reducing rules are with slurry by the progress of above-mentioned parts by weight；Addition
Adjuvant：3~5 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide；
(5) manufacture paper with pulp：Manufacture paper with pulp into 60g/m2Light offset paper；Again through surfing the Net, squeezing, drying process；
(6) corona treatment：Light offset paper after drying process is subjected to room temperature treatment by plasma machine,
Supply frequency control is 2~3m/min by the speed of plasma machine in 30~40kHz, paper web；
(7) it is glued：Light offset paper surface Jing Guo corona treatment is glued, uses substitution value as 0.04
5~10 parts of starch is glued；
(8) ornamenting：Ornamenting is carried out to page surface using twice soft calendaring, ornamenting both was carried out to page surface, changes paper
The planarization of page frame table, paper smoothness and evenness are improved, higher bulk can be retained again.
Further improving is：The high whiteness light offset paper includes each raw material of following parts by weight：Bleached softwood is starched
25 parts, bleaching broad-leaved starch 50 parts, 25 parts of reducing rules, 3 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, substitution value be 0.04 shallow lake
7 parts of powder.
Further improving is：10~20 parts of sepiolite is also added with during step (4) is with slurry.
Further improving is：The length of the sepiolite is 200~800 microns.
By using preceding solution, the beneficial effects of the invention are as follows：
1st, the present invention is manufactured paper with pulp quantification of using 25% bleached softwood slurry, 50% bleaching Deinking Pulp, the proportioning of 25% reducing rules
60g/m2Light offset paper；
2nd, in order to improve paper opacity, whiteness, filler uses fine particle calcium carbonate and titanium dioxide, dosage 15%, ratio 2:
1；
3rd, use and substitution value is added in slurry as 0.04 high strength starch and twice soft calendaring, improve paper strength, surface
The physical property such as intensity and smoothness；
The high whiteness light offset paper of the present invention not only has the characteristics such as good bulk, opacity, deflection, also has
There are higher tensile strength, folding strength and preferable smoothness, evenness, belong to leading product at home, slurry is used in production process
The high strength starch that interior addition substitution value is 0.04, improves slurry internal bond, to improve paper tensile strength and folding strength；And
Using twice soft calendaring, ornamenting both is carried out to page surface, changes the planarization of page surface, improves paper smoothness and even
Degree, can retain higher bulk, production technology is more advanced, therefore cost is relatively low, has stronger competitiveness in city poplar again.Again
Person, offset paper of the invention are also handled by plasma machine, paper surface is preferably adsorbed ink.
Further, the present invention is also added with sepiolite during with slurry, increases the pliability of offset paper.
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 preparation method of high whiteness light offset paper, the high whiteness light offset paper include each of following parts by weight
Raw material：Bleached softwood starches 25 parts, bleaching broad-leaved starches 45 parts, 20 parts of reducing rules, 3 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, takes
Dai Du is 0.04 5 parts of starch；
Including following processing step：
(1) bleached softwood slurry is prepared；
(2) bleaching broad-leaved slurry is prepared；
(3) reducing rules are prepared；
(4) it is with slurry：Above-mentioned bleached softwood slurry, bleaching broad-leaved slurry, reducing rules are with slurry by the progress of above-mentioned parts by weight；Addition
Adjuvant：3 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, 10 parts of sepiolite, the length of the sepiolite is 200 microns；
(5) manufacture paper with pulp：Manufacture paper with pulp into 60g/m2Light offset paper；Again through surfing the Net, squeezing, drying process；
(6) corona treatment：Light offset paper after drying process is subjected to room temperature treatment by plasma machine,
Supply frequency control is 2m/min by the speed of plasma machine in 30kHz, paper web；
(7) it is glued：Light offset paper surface Jing Guo corona treatment is glued, uses substitution value as 0.04
5~10 parts of starch is glued；
(8) ornamenting：Ornamenting is carried out to page surface using twice soft calendaring, ornamenting both was carried out to page surface, changes paper
The planarization of page frame table, paper smoothness and evenness are improved, higher bulk can be retained again.
Embodiment two
A kind of preparation method of high whiteness light offset paper, the high whiteness light offset paper include each of following parts by weight
Raw material：Bleached softwood starches 25 parts, bleaching broad-leaved starches 50 parts, 25 parts of reducing rules, 3 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, takes
Dai Du is 0.04 7 parts of starch；
Including following processing step：
(1) bleached softwood slurry is prepared；
(2) bleaching broad-leaved slurry is prepared；
(3) reducing rules are prepared；
(4) it is with slurry：Above-mentioned bleached softwood slurry, bleaching broad-leaved slurry, reducing rules are with slurry by the progress of above-mentioned parts by weight；Addition
Adjuvant：3 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, 15 parts of sepiolite, the length of the sepiolite is 500 microns；
(5) manufacture paper with pulp：Manufacture paper with pulp into 60g/m2Light offset paper；Again through surfing the Net, squeezing, drying process；
(6) corona treatment：Light offset paper after drying process is subjected to room temperature treatment by plasma machine,
Supply frequency control is 2~3m/min by the speed of plasma machine in 35kHz, paper web；
(7) it is glued：Light offset paper surface Jing Guo corona treatment is glued, uses substitution value as 0.04
7 parts of starch is glued；
(8) ornamenting：Ornamenting is carried out to page surface using twice soft calendaring, ornamenting both was carried out to page surface, changes paper
The planarization of page frame table, paper smoothness and evenness are improved, higher bulk can be retained again.
Embodiment three
A kind of preparation method of high whiteness light offset paper, the high whiteness light offset paper include each of following parts by weight
Raw material：Bleached softwood starches 30 parts, bleaching broad-leaved starches 50 parts, 25 parts of reducing rules, 5 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, takes
Dai Du is 0.04 10 parts of starch；
Including following processing step：
(1) bleached softwood slurry is prepared；
(2) bleaching broad-leaved slurry is prepared；
(3) reducing rules are prepared；
(4) it is with slurry：Above-mentioned bleached softwood slurry, bleaching broad-leaved slurry, reducing rules are with slurry by the progress of above-mentioned parts by weight；Addition
Adjuvant：5 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, 20 parts of sepiolite, the length of the sepiolite is 800 microns；
(5) manufacture paper with pulp：Manufacture paper with pulp into 60g/m2Light offset paper；Again through surfing the Net, squeezing, drying process；
(6) corona treatment：Light offset paper after drying process is subjected to room temperature treatment by plasma machine,
Supply frequency control is 3m/min by the speed of plasma machine in 40kHz, paper web；
(7) it is glued：Light offset paper surface Jing Guo corona treatment is glued, uses substitution value as 0.04
10 parts of starch is glued；
(8) ornamenting：Ornamenting is carried out to page surface using twice soft calendaring, ornamenting both was carried out to page surface, changes paper
The planarization of page frame table, paper smoothness and evenness are improved, higher bulk can be retained again.
Wherein, in the present invention, this can be achieved in following parameter area in each raw material of the high whiteness light offset paper
The purpose of invention：Bleached softwood starch 25~30 parts, bleaching broad-leaved starch 45~50 parts, 20~25 parts of reducing rules, 3~5 parts of brightening agent,
10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, 5~10 parts of the starch that substitution value is 0.04.Employed in the plasma treatment step etc.
Ion machine be prior art equipment, the not reinflated elaboration herein of its concrete structure.
It is the technical indicator that the high whiteness light offset paper of the present invention reaches 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. preparation method of high whiteness light offset paper, it is characterised in that：The high whiteness light offset paper includes following Each raw material of parts by weight：25~30 parts of bleached softwood slurry, 45~50 parts of bleaching broad-leaved slurry, 20~25 parts of reducing rules, brightening agent 3~ 5 parts, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, substitution value be 0.04 5~10 parts of starch；Including following processing step：(1) bleached softwood slurry is prepared；(2) bleaching broad-leaved slurry is prepared；(3) reducing rules are prepared；(4) it is with slurry：Above-mentioned bleached softwood slurry, bleaching broad-leaved slurry, reducing rules are with slurry by the progress of above-mentioned parts by weight；Addition auxiliary Agent：3~5 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide；(5) manufacture paper with pulp：Manufacture paper with pulp into 60g/m2Light offset paper；Again through surfing the Net, squeezing, drying process；(6) corona treatment：Light offset paper after drying process is subjected to room temperature treatment, power supply by plasma machine FREQUENCY CONTROL is 2~3m/min by the speed of plasma machine in 30~40kHz, paper web；(7) it is glued：Light offset paper surface Jing Guo corona treatment is glued, use substitution value for 0.04 starch 5~10 parts are glued；(8) ornamenting：Ornamenting is carried out to page surface using twice soft calendaring.
- A kind of 2. preparation method of high whiteness light offset paper according to claim 1, it is characterised in that：The high whiteness light offset paper includes each raw material of following parts by weight：Bleached softwood starch 25 parts, bleaching broad-leaved starch 50 parts, 25 parts of reducing rules, 3 parts of brightening agent, 10 parts of fine particle calcium carbonate, 5 parts of titanium dioxide, 7 parts of the starch that substitution value is 0.04.
- A kind of 3. preparation method of high whiteness light offset paper according to claim 1, it is characterised in that：In step (4) 10~20 parts of sepiolite is also added with during with slurry.
- A kind of 4. preparation method of high whiteness light offset paper according to claim 3, it is characterised in that：The sepiolite Length be 200~800 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710911819.7A CN107881839A (en) | 2017-09-29 | 2017-09-29 | A kind of preparation method of high whiteness light offset paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710911819.7A CN107881839A (en) | 2017-09-29 | 2017-09-29 | A kind of preparation method of high whiteness light offset paper |
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| CN107881839A true CN107881839A (en) | 2018-04-06 |
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| CN201710911819.7A Pending CN107881839A (en) | 2017-09-29 | 2017-09-29 | A kind of preparation method of high whiteness light offset paper |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045435A (en) * | 1989-11-07 | 1990-09-19 | 北京印刷学院 | Improve surface strength of paper with plasma technique |
| CN1045730A (en) * | 1989-11-07 | 1990-10-03 | 北京印刷学院 | Use the plasma to improve ink receptibility of paper |
| CN1455047A (en) * | 2003-01-15 | 2003-11-12 | 岳阳纸业股份有限公司 | Light coated printing paper and manufacturing method thereof |
| CN101392472A (en) * | 2008-10-15 | 2009-03-25 | 岳阳纸业股份有限公司 | Elegant pure paper and paper making technology thereof |
| CN102493259A (en) * | 2011-12-01 | 2012-06-13 | 中冶纸业银河有限公司 | High-whiteness pure paper and manufacturing technology thereof |
| WO2015167440A1 (en) * | 2014-04-28 | 2015-11-05 | Hewlett-Packard Development Company, L.P. | Lightweight digital printing medium |
| CN105155332A (en) * | 2015-09-15 | 2015-12-16 | 岳阳林纸股份有限公司 | Production method of top-grade book white offset printing paper |
| CN105155333A (en) * | 2015-09-15 | 2015-12-16 | 岳阳林纸股份有限公司 | Manufacturing method of top-grade ivory white offset printing paper |
| CN105735035A (en) * | 2016-03-02 | 2016-07-06 | 福建希源纸业有限公司 | Method for producing base wallpaper from waste paper deinking pulp |
-
2017
- 2017-09-29 CN CN201710911819.7A patent/CN107881839A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045435A (en) * | 1989-11-07 | 1990-09-19 | 北京印刷学院 | Improve surface strength of paper with plasma technique |
| CN1045730A (en) * | 1989-11-07 | 1990-10-03 | 北京印刷学院 | Use the plasma to improve ink receptibility of paper |
| CN1455047A (en) * | 2003-01-15 | 2003-11-12 | 岳阳纸业股份有限公司 | Light coated printing paper and manufacturing method thereof |
| CN101392472A (en) * | 2008-10-15 | 2009-03-25 | 岳阳纸业股份有限公司 | Elegant pure paper and paper making technology thereof |
| CN102493259A (en) * | 2011-12-01 | 2012-06-13 | 中冶纸业银河有限公司 | High-whiteness pure paper and manufacturing technology thereof |
| WO2015167440A1 (en) * | 2014-04-28 | 2015-11-05 | Hewlett-Packard Development Company, L.P. | Lightweight digital printing medium |
| CN105155332A (en) * | 2015-09-15 | 2015-12-16 | 岳阳林纸股份有限公司 | Production method of top-grade book white offset printing paper |
| CN105155333A (en) * | 2015-09-15 | 2015-12-16 | 岳阳林纸股份有限公司 | Manufacturing method of top-grade ivory white offset printing paper |
| CN105735035A (en) * | 2016-03-02 | 2016-07-06 | 福建希源纸业有限公司 | Method for producing base wallpaper from waste paper deinking pulp |
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