CN106498796B - The method that a kind of biochemical process ECF bleaching NaOH AQ slurries of Fast growth poplar prepare paper base material - Google Patents
The method that a kind of biochemical process ECF bleaching NaOH AQ slurries of Fast growth poplar prepare paper base material Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 49
- 241000219000 Populus Species 0.000 title claims abstract description 44
- 239000002002 slurry Substances 0.000 title claims abstract description 41
- 238000004061 bleaching Methods 0.000 title claims abstract description 37
- 230000003851 biochemical process Effects 0.000 title claims abstract description 32
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 title abstract description 27
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 139
- 238000010009 beating Methods 0.000 claims abstract description 60
- 238000005360 mashing Methods 0.000 claims abstract description 21
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 21
- 230000008569 process Effects 0.000 abstract description 16
- 239000000654 additive Substances 0.000 abstract description 4
- 230000000996 additive effect Effects 0.000 abstract description 4
- 230000007812 deficiency Effects 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 132
- 239000002585 base Substances 0.000 description 67
- 239000000835 fiber Substances 0.000 description 46
- 239000002994 raw material Substances 0.000 description 38
- 238000009835 boiling Methods 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000007613 environmental effect Effects 0.000 description 10
- 229920002472 Starch Polymers 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- 235000019698 starch Nutrition 0.000 description 9
- 230000000704 physical effect Effects 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 108090000790 Enzymes Proteins 0.000 description 6
- 102000004190 Enzymes Human genes 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 239000007844 bleaching agent Substances 0.000 description 5
- 239000013068 control sample Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 101710121765 Endo-1,4-beta-xylanase Proteins 0.000 description 4
- OSVXSBDYLRYLIG-UHFFFAOYSA-N chlorine dioxide Inorganic materials O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011087 paperboard Substances 0.000 description 4
- 238000002203 pretreatment Methods 0.000 description 4
- 239000008107 starch Substances 0.000 description 4
- 244000007853 Sarothamnus scoparius Species 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 238000007605 air drying Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 239000011111 cardboard Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- QSGOVFBRMMLXPZ-UHFFFAOYSA-M sodium;anthracene-9,10-dione;hydroxide Chemical compound [OH-].[Na+].C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 QSGOVFBRMMLXPZ-UHFFFAOYSA-M 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 201000004384 Alopecia Diseases 0.000 description 1
- 108010001682 Dextranase Proteins 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000021197 fiber intake Nutrition 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 208000024963 hair loss Diseases 0.000 description 1
- 230000003676 hair loss Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004076 pulp bleaching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229920001221 xylan Polymers 0.000 description 1
- 150000004823 xylans Chemical class 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/123—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with Cl2O
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/02—Methods of beating; Beaters of the Hollander type
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Paper (AREA)
Abstract
The invention discloses the method that a kind of biochemical process ECF of Fast growth poplar bleaching NaOH AQ slurries prepare paper base material, it is characterized in that, comprise the following steps：The biochemical process ECF bleaching NaOH AQ slurries of Fast growth poplar are subjected to gradient mashing respectively, the beating degree of the first paper pulp is 10 25 ° of SR, and the beating degree of second of paper pulp is 30 55 ° of SR, and the beating degree of the third paper pulp is 60 70 ° of SR；Then by the paper pulp of prepare three kinds of gradients according to mass ratio 15 ~ 30：65~80：5 ~ 10 carry out preparing paper base material after being well mixed.In paper-making process, the present invention is beaten technology and from two key technologies of adding technique using gradient, solves the deficiency of single mashing technology in the prior art, it is to avoid the use of additional additive.
Description
Technical field
The invention belongs to pulp technology for making paper, and in particular to a kind of biochemical process ECF bleaching NaOH-AQ slurries of Fast growth poplar
The method for preparing paper base material.
Background technology
Since 2012, the total output of China's paper and cardboard has exceeded a quarter of global yield, is sure to occupy the first in the world.
With the fast development of China's paper industry, timber biological matter turns into the main raw material(s) of China's pulp and paper industry, accounts for
The 60% of raw material of papermaking fiber.With the continuous improvement of pulp and paper industry production technology level, leaf wood is in pulping and paper-making
Shared proportion is continued to increase.Currently, the extensive Fast growth poplar woods of northern China has provided scale, is the hair of pulp and paper industry
Good raw material has been laid in exhibition., will using the component isolation technics of wood fibre paper making raw material with the development of society and science and technology
Its separation prepare chemical pulp except use it for preparing traditional paper and cardboard while, redevelop series prepare paper base material
The new technology of material, widens traditional paper industry to new material industry, is that the transition and upgrade of traditional paper industry has been widened newly
Thinking and approach.
The process of papermaking is broadly divided into two basic processes of slurrying and papermaking.Now in production generally by single starting pulps
Or mixed material paper pulp is after simple mashing, then it is various toward filler, sizing material, sizing agent of addition improvement paper performance etc. in paper pulp
Auxiliary material, then carries out copying the type of being made or compressing.Wherein, papermaking filler refers to that some added in paper pulp are substantially insoluble in
The solia particle of water, the purpose of addition be improve paper opacity, brightness, smoothness, flexibility, uniformity and size it is steady
It is qualitative.The good hand touch of paper can also be made, its hygroscopicity is reduced, fiber consumption is reduced.The paper pulp for adding filler is easily dehydrated, easily
Dry, energy resource consumption can be reduced, reduce papermaking cost.But, the easy dry linting of filled paper, hair loss, these shortcomings are also needed
To be made up by intensive and top sizing.The addition of a large amount of chemicals, can be right while making the raising or change of paper
Using more or less causing certain harm with environment.
The biochemical process ECF bleaching NaOH-AQ slurries on Fast growth poplar are prepared using conventional paper-making technique at present
Paper base material, which exists, is prepared into the problem of every physical index after paper is relatively low, especially on art post paperboard is prepared, Bai Ka
Paper has higher requirement in whiteness, deflection, bursting strength and smoothness etc..
The content of the invention
For problems of the prior art, the present invention is beaten technology and from two crucial skills of adding technique using gradient
Art, using the type of being made is copied and compressing two methods prepare the new method of senior paper base material, obtains series high strength
The new preparation technology of paper base material.
The technical solution adopted by the present invention is as follows：
The biochemical process ECF bleaching NaOH-AQ slurries that first purpose of the present invention is to provide a kind of Fast growth poplar prepare paper
The method of sill, comprises the following steps：
The biochemical process ECF bleaching NaOH-AQ slurries of Fast growth poplar are subjected to gradient mashing, the mashing of the first paper pulp respectively
Spend for 10~25 ° of SR, the beating degree of second of paper pulp is 30~55 ° of SR, and the beating degree of the third paper pulp is 60~70 ° of SR；
Then by the paper pulp of prepare three kinds of gradients according to mass ratio 15~30：65~80：5~10 mix
Paper base material is prepared after even.
Because energy consumption needed for different beating degrees is different, the present invention can in proportion enter according to the characteristic of required paper base material
Paper base material is prepared after row is well mixed, can play in the performance of paper base material needed for ensureing to reach, make energy resource consumption most
It is low.
It is preferred that, the beating degree of the first paper pulp is 15~25 ° of SR, and the beating degree of second of paper pulp is 35~50 °
SR, the beating degree of the third paper pulp is 60~65 ° of SR.
It is preferred that, according to paper pulp raw material of the invention specific, for cause the physical property of paper base material for preparing compared with
Good, the mass ratio of the first paper pulp, second of paper pulp and the third paper pulp is 20~30：65~75：5~10.
Most preferably, the mass ratio of the first paper pulp, second of paper pulp and the third paper pulp is 25：70：5.
It is preferred that, the preparation method referenced patents of the biochemical process ECF bleaching NaOH-AQ slurries of the Fast growth poplar
Preparation method in ZL201310301253.8.
The preparation method of the biochemical process ECF bleaching NaOH-AQ slurries of Fast growth poplar, comprises the following steps：
(1) boiling：Fast growth poplar wood chip is taken, boiling in digester is put into, magma is obtained, is then washed, screened, obtain paper
Slurry；
(2) xylanase pretr eatment；
(3) ECF is bleached：The paper pulp of above-mentioned process ferment treatment is bleached, and bleaching process is ODED, and step is：First, it is right
Deoxidation lignin or reinforcing deoxidation lignin are carried out by the paper pulp of ferment treatment；After oxygen delignification terminates, paper pulp is washed, then
Carry out D sections of ClO 2 bleachings；After D sections of ClO 2 bleachings terminate, paper pulp is washed, E sections are then carried out；E sections are terminated
Afterwards, paper pulp is washed, then carries out second D sections, completed.
Design parameter is：Oxygen Delignification of Fast-Growing is：Starch dense 10%, NaOH consumptions 2.5%, oxygen pressure 0.6MPa, temperature 100
DEG C, time 80min, MgSO4Consumption 0.5%；D sections：ClO2Consumption is 0.5%, initial pH value 5, temperature 70 C, slurry dense 10%, when
Between 120min；E sections：NaOH consumptions 2%, slurry dense 10%, temperature 70 C；Second D sections：ClO2Consumption is 0.5%, initial pH value
5, temperature 70 C, slurry dense 10%, time 120min.
The concrete mode of the boiling is：Take 15~25mm of length, 10~20mm of width, 3~5mm of thickness quick growth poplar wood
After piece, natural air drying, boiling is carried out, Fast growth poplar sodium hydroxide anthraquinone magma is made, the condition of boiling is：Alkali charge 22%, it is right
Over dry raw material, NaOH meters；AQ consumptions 0.05%, liquor ratio 1:4,165 DEG C of boiling maximum temperature carries out deflation 10- at 105 DEG C
15min, heating-up time 90min, soaking time 90min；Boiling disposed slurry is scrubbed, screening, obtains paper pulp, the Kappa number 16 of paper pulp
~21.
The concrete mode of the xylanase pretr eatment is：It is 10% to adjust pulp density, then uses zytase X1、X2
Or X3Handled, in processing procedure, rubbed once at interval of 10~15min；Take out, be put into boiling water bath after processing
10min, makes zytase inactivate terminating reaction, paper pulp is cleaned with running water.
The zytase X1、X2Or X3The concrete technology condition handled is as follows：Dextranase X1Process conditions be：
Enzyme dosage 10IU/L, temperature 50 C, pH8-9, time 90-120min；Zytase X2Process conditions be：Enzyme dosage 8IU/g,
55 DEG C of temperature, pH8-9, time 90-120min；Zytase X3Process conditions be：Enzyme dosage 10IU/g, temperature 50 C,
PH8-9, time 120min.
It is preferred that, obtain after well mixed paper pulp, using copying the type of being made or compressing prepare paper base material.Copy and be made
Type and it is compressing be conventional technique in pulp technology for making paper.
Second object of the present invention is to provide the paper base material that a kind of use above method is prepared.The paper base material
It can make a living and apply flexibly paper base material and white card body paper paper base material.
It is preferred that, it is more suitable for preparing white card body paper using the method for the present invention, obtained white card body paper uniform ground, it is thick
It is thin consistent, not dry linting.
Third object of the present invention is to provide a kind of application of gradient mixed pulp in white card body paper is prepared, the ladder
The preparation method for spending mixed pulp is as follows：The biochemical process ECF bleaching NaOH-AQ slurries of Fast growth poplar are carried out into gradient respectively to beat
Slurry, the beating degree of the first paper pulp is 10~25 ° of SR, the beating degree of second of paper pulp is 30~55 ° of SR, and the third paper pulp is beaten
The degree of beating is 60~70 ° of SR；
Then by the paper pulp of prepare three kinds of gradients according to mass ratio 15~30：65~80：5~10 mix
Gradient mixed pulp is obtained after even.
It is preferred that, the beating degree of the first paper pulp is 15~25 ° of SR, and the beating degree of second of paper pulp is 35~50 °
SR, the beating degree of the third paper pulp is 60~65 ° of SR；
It is preferred that, the mass ratio of the first paper pulp, second of paper pulp and the third paper pulp is 20~30：65~75：5~
10；
It is further preferred that the mass ratio of the first paper pulp, second of paper pulp and the third paper pulp is 25：70：5.
Art post paperboard is because its whiteness is high, intensity turns into greatly a kind of widely used package paper, and it is by the white card body paper knot of multilayer
Close and constitute, a kind of paper manufactured through multi-roller rolling.Need to add filler and auxiliary agent in slurries after general mashing.
The white card body paper prepared using the method for the present invention, there is higher deflection, bursting strength and smoothness.
Because the paper pulp used in the present invention is that biochemical process is bleached in gained Fast growth poplar chemical pulp, pulp bleaching process
By the effect of biology enzyme, the flexibility of paper pulp fiber strengthens, and pulping process energy consumption is substantially reduced, the holding of the paper pulp after mashing
Preferable flexibility and manufacturing paper with pulp property.
The purpose of gradient mashing is paper pulp is kept the good water filtering performance of paper pulp fiber when preparing paper base material,
Also to cause the exposed enough hydroxyls of paper pulp fiber shaping paper base material is possessed enough hydrogen bonds, Covalent bonding together, make
Obtain paper base material one chain-shaped network structure staggeredly of formation, it is ensured that the excellent physical strength of shaping paper base material.This is in production
White card body paper has played obvious action.
Beating degree and fibrous binding force, fracture length, folding strength, tearability, deflection, smoothness etc. have complicated relation,
For different pulp varieties, this relation does not have specific rule, so needing to touch by substantial amounts of experiment progress research
Rope, obtains preparing paper base material preferably beating degree.For the biochemical process ECF bleaching NaOH-AQ slurries of specific Fast growth poplar,
Present invention optimization obtains the beating degree and its respective content ratio of three kinds of gradients, the slurry of different ratio and gradient beating degree it
Between play a part of cooperative compensating, requirement to beating degree reduction can avoid conditions of beating control bad, easily occur it is quantitative not
The problem of.The physical property of paper substrate and the retention of mashing, the addition of filler and filler prepared due to tradition has larger
Relation, if to prepare a kind of specific paper substrate, it is necessary to get hold of each link.And through research, for specific raw material, sheet
Invention can prepare preferable paper base material by regulating and controlling mashing gradient and its respective content.
The present invention is starched for the biochemical process ECF bleachings NaOH-AQ of specific Fast growth poplar, through analysis and research, beating degree
(10~25 ° of SR) relatively low paper pulp fiber is longer, wire-dividing broom purification lesser extent, and certain support is played in paper base material and is made
With, and ensure water filtering performance good in paper base material preparation process, the consumption of this part paper pulp fiber it is general 15%~
30%；Beating degree (30~55 ° of SR) moderate paper pulp fiber has been cut off, and fiber wire-dividing broom purification preferably, is preparing paper base material
During, playing a part of interweaving fibre compact combines, and the consumption proportion of this part paper pulp fiber is maximum, and usually 65
~80%；The higher paper pulp fiber of beating degree (60~70 ° of SR), the cut-out of fiber in itself is more, wire-dividing broom purification degree is very high, fine
Dimension attenuates short and small, and the hydroxyl and hydrogen bond exposed is more, during paper base material is prepared, and plays link and interweaves more hydrogen bonds
With covalent bond, the effect in filling paper base material space, the consumption proportion of this part paper pulp fiber is less, usually 5~
10%.
Refer to from adding technique, it is not necessary to extra additive, chemical pulp need to only be carried out to gradient mashing respectively, and part is few
The beating degree for measuring chemical pulp is improved, and it is short tiny that fiber becomes, and coordinates according to a certain percentage, can replace the use of additive.
Above-mentioned technical proposal has the advantages that：
(1) in paper-making process, the present invention is beaten technology and from two key technologies of adding technique using gradient, solves
Single mashing technology and the deficiency of mixing plurality of raw materials mashing in the prior art, it is to avoid the use of additional additive.
(2) physical properties of gradient of the invention mashing technology and the paper base material prepared from adding technique are excellent
It is different, especially prepare white card body paper.
Embodiment
With reference to embodiment, the present invention is further described.
Embodiment 1
It is prepared by the method that a kind of biochemical process ECF bleaching NaOH-AQ slurries of Fast growth poplar prepare paper base material, the embodiment
White card body paper paper base material, the white card body paper material can be directly as environmental protection package paper base material.
Step is as follows：
(1) by patent ZL201310301253.8 " a kind of NaOH-AQ of Fast growth poplar starches biochemical process ECF bleaching process "
The high-performance element-free chlorine Fast growth poplar bleach chemical pulp that technology is obtained, pulp brightness 86.2%ISO takes three parts of paper pulp to utilize PFI
Mill carries out accurate defibrination so that the beating degree of paper pulp is 25 ° of SR, 45 ° of SR, 65 ° of SR respectively.
Wherein, pulp brightness is the preparation method of 86.2%ISO chemical pulp, is comprised the following steps：
1) boiling：Fast growth poplar wood chip is taken, boiling in digester is put into, magma is obtained, is then washed, screened, obtain paper pulp；
The concrete mode of the boiling is：Take 15~25mm of length, 10~20mm of width, 3~5mm of thickness quick growth poplar wood
After piece, natural air drying, boiling is carried out, Fast growth poplar sodium hydroxide anthraquinone magma is made, the condition of boiling is：Alkali charge 22%, it is right
Over dry raw material, NaOH meters；AQ consumptions 0.05%, liquor ratio 1:4,165 DEG C of boiling maximum temperature is deflated at 105 DEG C
10min, heating-up time 90min, soaking time 90min；Boiling disposed slurry is scrubbed, screening, obtains paper pulp.
2) xylanase pretr eatment；
The concrete mode of the xylanase pretr eatment is：It is 10% to adjust pulp density, is then entered with zytase X1
Row processing, in processing procedure, is rubbed once at interval of 15min；Taken out after processing, be put into 10min in boiling water bath, make xylan
Enzyme inactivates terminating reaction, and paper pulp is cleaned with running water；
Zytase X1 process conditions are：Enzyme dosage 10IU/L, temperature 50 C, pH8-9, time 90-120min.
3) ECF is bleached：The paper pulp of above-mentioned process ferment treatment is bleached, and bleaching process is ODED, and step is：First, it is right
Oxygen delignification is carried out by the paper pulp of ferment treatment；After oxygen delignification terminates, paper pulp is washed, D sections of titanium dioxides are then carried out
Chlorine bleaching；After D sections of ClO 2 bleachings terminate, paper pulp is washed, E sections are then carried out；After E sections are terminated, paper pulp is carried out
Washing, then carries out second D sections, completes；
Design parameter is：Oxygen Delignification of Fast-Growing is：Starch dense 10%, NaOH consumptions 2.5%, oxygen pressure 0.6MPa, temperature 100
DEG C, time 80min, MgSO4Consumption 0.5%；D sections：ClO2Consumption is 0.5%, initial pH value 5, temperature 70 C, slurry dense 10%, when
Between 120min；E sections：NaOH consumptions 2%, slurry dense 10%, temperature 70 C；Second D sections：ClO2Consumption is 0.5%, initial pH value
5, temperature 70 C, slurry dense 10%, time 120min；
(2) the standby paper pulp fiber starched of mashing or defibrination according to 25 ° of SR of beating degree, 45 ° of SR, 65 ° of SR paper pulp fiber
Raw material mixing quality ratio 15:75:10 discongest device and discongest and it is uniformly mixed through fiber, are then pressed on sheet forming apparatus
Type 120g/m2Environmental protection package paper base material.
(3) at the same time, a, 45 ° of SR of selection beating degree 100% paper pulp fiber raw material, b, selection beating degree are 25 °
SR, 45 ° of SR paper pulp raw material, according to mass ratio 20：80 mixing；
Above-mentioned raw materials are discongested device and discongested through fiber makes it uniformly mix, then the compressing 120g/ on sheet forming apparatus
m2Environmental protection package paper base material, does control sample use.
(4) 120g/m for being molded both the above2Environmental protection package paper base material is put on electrothermal drying cylinder and dried, then
The moisture that environmentally friendly wrapping paper sill is balanced in drier is put into, makes its water tariff collection 8%, then determines the thing of paper base material
Manage intensity.
(5) the indices such as table 1 of gained environmental protection package paper base material, under identical paper pulp fiber raw material, according to gradient
The indices of the environmental protection package paper base material prepared are beaten to place an order the paper pulp fiber raw material system of a beating degree better than normal condition
Standby environmental protection package paper base material.
The biochemical process ECF bleaching NaOH-AQ slurries of the Fast growth poplar of table 1 prepare the physical property of environmental protection package paper base material
Indexes Comparison list
The method that a kind of biochemical process ECF bleaching NaOH-AQ slurries of the Fast growth poplar of embodiment 2 prepare paper base material, the reality
Apply example and prepare white card body paper paper base material, the white card body paper material can be directly as environmental protection package paper base material.
Step is as follows：
(1) by patent ZL201310301253.8 " a kind of NaOH-AQ of Fast growth poplar starches biochemical process ECF bleaching process "
The high-performance element-free chlorine Fast growth poplar bleach chemical pulp (using the chemical pulp described in embodiment 1) that technology is obtained, takes three parts of paper
Slurry carries out accurate defibrination using PFI mills so that the beating degree of paper pulp is 20 ° of SR, 40 ° of SR, 60 ° of SR respectively.
(2) the standby paper pulp fiber raw material starched of mashing or defibrination according to 20 ° of SR of beating degree, 40 ° of SR, 60 ° of SR paper pulp
Fibrous raw material mixing quality ratio 20:70:10 discongest device and discongest and it is uniformly mixed through fiber, are then pressed on sheet forming apparatus
Type 130g/m is made2Environmental protection package paper base material.
(3) at the same time, a, 40 ° of SR of selection beating degree 100% paper pulp fiber raw material, b, selection beating degree are 20 °
SR, 40 ° of SR paper pulp raw material, according to mass ratio 30：70 mixing；Above-mentioned raw materials are discongested device and discongested through fiber makes it uniformly mix
Close, then the compressing 130g/m on sheet forming apparatus2Environmental protection package paper base material, does control sample use.
(4) 130g/m for being molded both the above2Environmental protection package paper base material is put on electrothermal drying cylinder and dried, then
The moisture that environmentally friendly wrapping paper sill is balanced in drier is put into, makes its water tariff collection 8%, then determines the thing of paper base material
Manage intensity.
(5) the indices such as table 2 of gained environmental protection package paper base material, under identical paper pulp fiber raw material, according to gradient
The indices of the environmental protection package paper base material prepared are beaten to place an order the paper pulp fiber raw material system of a beating degree better than normal condition
Standby environmental protection package paper base material.
The biochemical process ECF bleaching NaOH-AQ slurries of the Fast growth poplar of table 2 prepare the physical property of environmental protection package paper base material
Indexes Comparison list
The method that a kind of biochemical process ECF bleaching NaOH-AQ slurries of the Fast growth poplar of embodiment 3 prepare paper base material, the reality
Apply example and prepare paper for daily use sill.
Step is as follows：
(1) by patent ZL201310301253.8 " a kind of NaOH-AQ of Fast growth poplar starches biochemical process ECF bleaching process "
The high-performance element-free chlorine Fast growth poplar bleach chemical pulp (using the chemical pulp described in embodiment 1) that technology is obtained, takes three parts of paper
Slurry carries out accurate defibrination using PFI mills so that the beating degree of paper pulp is 15 ° of SR, 35 ° of SR, 60 ° of SR respectively.
(2) the standby paper pulp fiber raw material starched of mashing or defibrination according to 15 ° of SR of beating degree, 35 ° of SR, 60 ° of SR paper pulp
Fibrous raw material mixing quality ratio 20:70:10 discongest device and discongest and it is uniformly mixed through fiber, are then pressed on sheet forming apparatus
Type 30g/m is made2Paper for daily use sill.
(3) at the same time, 35 ° of SR of selection beating degree 100% paper pulp fiber raw material, discongesting device through fiber and discongest makes it
Uniformly mix, then the compressing 30g/m on sheet forming apparatus2Paper for daily use sill, does control sample use.
(4) 30g/m for being molded both the above2Paper for daily use sill is put on electrothermal drying cylinder and dried, Ran Houfang
The moisture of balanced life paper base material into drier, makes its water tariff collection 8%, the physics for then determining paper base material is strong
Degree.
(5) the indices such as table 3 of gained paper for daily use sill, under identical paper pulp fiber raw material, beats according to gradient
Starch prepare paper for daily use sill indices better than normal condition place an order a beating degree paper pulp fiber raw material prepare
Paper for daily use sill.
The physical property that the biochemical process ECF bleaching NaOH-AQ slurries of the Fast growth poplar of table 3 prepare paper for daily use sill refers to
Mark compares list
The method that a kind of biochemical process ECF bleaching NaOH-AQ slurries of the Fast growth poplar of embodiment 4 prepare paper base material, the reality
Apply example and prepare paper for daily use sill.
Step is as follows：
(1) by patent ZL201310301253.8 " a kind of NaOH-AQ of Fast growth poplar starches biochemical process ECF bleaching process "
The high-performance element-free chlorine Fast growth poplar bleach chemical pulp (using the chemical pulp described in embodiment 1) that technology is obtained, takes three parts of paper
Slurry carries out accurate defibrination using PFI mills so that the beating degree of paper pulp is 20 ° of SR, 40 ° of SR, 60 ° of SR respectively.
(2) the standby paper pulp fiber raw material starched of mashing or defibrination according to 20 ° of SR of beating degree, 40 ° of SR, 60 ° of SR paper pulp
Fibrous raw material mixing quality ratio 15:70:15 discongest device and discongest and it is uniformly mixed through fiber, are then pressed on sheet forming apparatus
Type 35g/m is made2Paper for daily use sill.
(3) at the same time, 40 ° of SR of selection beating degree 100% paper pulp fiber raw material, discongesting device through fiber and discongest makes it
Uniformly mix, then the compressing 35g/m on sheet forming apparatus2Paper for daily use sill, does control sample use.
(4) 35g/m for being molded both the above2Paper for daily use sill is put on electrothermal drying cylinder and dried, Ran Houfang
The moisture of balanced life paper base material into drier, makes its water tariff collection 8%, the physics for then determining paper base material is strong
Degree.
(5) the indices such as table 4 of gained paper for daily use sill, under identical paper pulp fiber raw material, beats according to gradient
Starch prepare paper for daily use sill indices better than normal condition place an order a beating degree paper pulp fiber raw material prepare
Paper for daily use sill.
The physical property that the biochemical process ECF bleaching NaOH-AQ slurries of the Fast growth poplar of table 4 prepare paper for daily use sill refers to
Mark compares list
The method that a kind of biochemical process ECF bleaching NaOH-AQ slurries of the Fast growth poplar of embodiment 5 prepare paper base material, the reality
Apply example and prepare white card body paper paper base material.
Step is as follows：
(1) by patent ZL201310301253.8 " a kind of NaOH-AQ of Fast growth poplar starches biochemical process ECF bleaching process "
The high-performance element-free chlorine Fast growth poplar bleach chemical pulp (using the chemical pulp described in embodiment 1) that technology is obtained, takes three parts of paper
Slurry carries out accurate defibrination using PFI mills so that the beating degree of paper pulp is 20 ° of SR, 40 ° of SR, 60 ° of SR respectively.
(2) the standby paper pulp fiber starched of mashing or defibrination according to 20 ° of SR of beating degree, 40 ° of SR, 60 ° of SR paper pulp fiber
Raw material mixing quality ratio 10:80:10 discongest device and discongest and it is uniformly mixed through fiber, are then pressed on sheet forming apparatus
Type 120g/m2White card body paper paper base material.
(3) at the same time, a, 40 ° of SR of selection beating degree 100% paper pulp fiber raw material, b, selection beating degree are 20 °
SR, 40 ° of SR paper pulp raw material, according to mass ratio 20：80 mixing；
Above-mentioned raw materials are discongested device and discongested through fiber makes it uniformly mix, then the compressing 120g/ on sheet forming apparatus
m2White card body paper paper base material, does control sample use.
(4) 120g/m for being molded both the above2White card body paper paper base material, which is put on electrothermal drying cylinder, is dried, then
The moisture that white card body paper paper base material is balanced in drier is put into, makes its water tariff collection 8%, then determines the thing of paper base material
Manage intensity.
(5) the indices such as table 5 of the white card body paper paper base material of gained, under identical paper pulp fiber raw material, according to gradient
The indices of the white card body paper paper base material prepared are beaten to place an order the paper pulp fiber raw material system of a beating degree better than normal condition
Standby white card body paper paper base material.
The biochemical process ECF bleaching NaOH-AQ slurries of the Fast growth poplar of table 5 prepare white card body paper paper base material physical property and referred to
Mark compares list
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (12)
1. the method that a kind of biochemical process ECF bleaching NaOH-AQ slurries of Fast growth poplar prepare paper base material, it is characterized in that, including
Following steps：
The biochemical process ECF bleaching NaOH-AQ slurries of Fast growth poplar are subjected to gradient mashing respectively, the beating degree of the first paper pulp is
10 ~ 25 ° of SR, the beating degree of second of paper pulp is 30 ~ 55 ° of SR, and the beating degree of the third paper pulp is 60 ~ 70 ° of SR；
Then by the paper pulp of prepare three kinds of gradients according to mass ratio 15 ~ 30：65~80：5 ~ 10 made after being well mixed
Standby paper base material.
2. the method as described in claim 1, it is characterized in that：The beating degree of the first paper pulp is 15 ~ 25 ° of SR, second
The beating degree of paper pulp is 35 ~ 50 ° of SR, and the beating degree of the third paper pulp is 60 ~ 65 ° of SR.
3. the method as described in claim 1, it is characterized in that：The quality of the first paper pulp, second of paper pulp and the third paper pulp
Ratio is 20 ~ 30：65~75：5~10.
4. the method as described in claim 1, it is characterized in that：The quality of the first paper pulp, second of paper pulp and the third paper pulp
Ratio is 25：70：5.
5. the method as described in claim 1, it is characterized in that：Obtain after well mixed paper pulp, using copying the type of being made or compacting
Shaping prepares paper base material.
6. the paper base material prepared using the method any one of claim 1 ~ 5.
7. paper base material as claimed in claim 6, it is characterized in that：The paper base material, which is made a living, applies flexibly paper base material and white card body paper
Paper base material.
8. paper base material as claimed in claim 7, it is characterized in that：The paper base material is white card body paper paper base material.
9. a kind of application of gradient mixed pulp in white card body paper is prepared, it is characterized in that：The preparation of the gradient mixed pulp
Method is as follows：The biochemical process ECF of Fast growth poplar bleaching NaOH-AQ slurries are subjected to gradient mashing respectively, the first paper pulp is beaten
The degree of beating is 10 ~ 25 ° of SR, and the beating degree of second of paper pulp is 30 ~ 55 ° of SR, and the beating degree of the third paper pulp is 60 ~ 70 ° of SR；
Then by the paper pulp of prepare three kinds of gradients according to mass ratio 15 ~ 30：65~80：5 ~ 10 obtained after being well mixed
To gradient mixed pulp.
10. application as claimed in claim 9, it is characterized in that：The beating degree of the first paper pulp is 15 ~ 25 ° of SR, second
The beating degree of paper pulp is 35 ~ 50 ° of SR, and the beating degree of the third paper pulp is 60 ~ 65 ° of SR.
11. application as claimed in claim 9, it is characterized in that：The quality of the first paper pulp, second of paper pulp and the third paper pulp
Ratio is 20 ~ 30：65~75：5~10.
12. application as claimed in claim 11, it is characterized in that：The matter of the first paper pulp, second of paper pulp and the third paper pulp
Amount ratio is 25：70：5.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767120A (en) * | 2012-07-12 | 2012-11-07 | 浙江金昌纸业有限公司 | Method for making raw paper of heat sublimation transfer printing paper |
| CN102912669A (en) * | 2012-11-06 | 2013-02-06 | 大唐国际发电股份有限公司 | Light offset paper filled with synthetic calcium silicate and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767120A (en) * | 2012-07-12 | 2012-11-07 | 浙江金昌纸业有限公司 | Method for making raw paper of heat sublimation transfer printing paper |
| CN102912669A (en) * | 2012-11-06 | 2013-02-06 | 大唐国际发电股份有限公司 | Light offset paper filled with synthetic calcium silicate and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 废弃麻袋纤维在造纸法再造烟叶中的应用;戴魁;《造纸科学与技术》;20160615;第35卷(第3期);第39-44页 * |
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