CN103422390B - Slurry processing method, by the paper pulp obtained by the method and the paper that prepared by this paper pulp - Google Patents
Slurry processing method, by the paper pulp obtained by the method and the paper that prepared by this paper pulp Download PDFInfo
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- CN103422390B CN103422390B CN201210155186.9A CN201210155186A CN103422390B CN 103422390 B CN103422390 B CN 103422390B CN 201210155186 A CN201210155186 A CN 201210155186A CN 103422390 B CN103422390 B CN 103422390B
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Abstract
A kind of slurry processing method, comprise the following steps: the slurry providing a weight/mass percentage composition to be 20% 35%, adding sodium carboxymethyl cellulose, sodium hydroxyethlcellulose or carboxymethyl starch sodium in this slurry, the addition of sodium carboxymethyl cellulose, sodium hydroxyethlcellulose or carboxymethyl starch sodium is the 0.1 1% of over dry stock quality；The described slurry being added with sodium carboxymethyl cellulose, sodium hydroxyethlcellulose or carboxymethyl starch sodium is carried out rubbing process in kneading machine, makes sodium carboxymethyl cellulose, sodium hydroxyethlcellulose or carboxymethyl starch sodium form anion group and be adsorbed onto fiber surface in slurry.Present invention also offers by the paper pulp obtained by said method and the paper that prepared by this paper pulp.
Description
Technical field
The present invention relates to the processing method of a kind of paper making pulp, obtained paper pulp and by this paper
The paper that slurry prepares.
Background technology
Prior art, generally adds sodium carboxymethyl cellulose (CMC) in paper pulp, so that
CMC is adsorbed onto on the fiber of slurry and improves fiber in fiber surface negative ion amount and paper pulp
Lubricity, the performance such as tearability.Due in carboxyl and the slurry of CMC fiber all with negative
How electric charge, therefore, overcome electrostatic repulsion to be to increase the key of CMC adsorbance.
In order to improve the adsorbance of fiber surface C MC in slurry, traditional method is: at paper
Slurry adds CMC diluent and obtains a mixed liquor, then by adding mineral acid regulation mixed liquor
PH value protonates to less than 4 with promotion CMC, and then improves the adsorbance of fiber surface C MC.
Owing to needing to add mineral acid and/or pH buffer during pH value in regulation paper pulp, and
The time of regulation pH value is longer, is easy to corrode paper making equipment, reduce production efficiency.
Summary of the invention
In view of this, it is provided that a kind of efficient, the slurry processing method of paper making equipment can be protected.
It addition, also provide for a kind of through the paper pulp obtained by said method.
It addition, also provide for a kind of paper prepared by above-mentioned paper pulp.
A kind of slurry processing method, comprises the following steps:
The slurry providing a weight/mass percentage composition to be 20%-35%, adds carboxylic first in this slurry
Base sodium cellulosate, sodium hydroxyethlcellulose or carboxymethyl starch sodium, sodium carboxymethyl cellulose,
The addition of sodium hydroxyethlcellulose or carboxymethyl starch sodium is over dry stock quality
0.1-1%；
It is added with sodium carboxymethyl cellulose, sodium hydroxyethlcellulose or carboxymethyl starch by described
The slurry of sodium carries out rubbing process in kneading machine, makes sodium carboxymethyl cellulose, carboxyethyl fine
Dimension element sodium or carboxymethyl starch sodium form anion group and are adsorbed onto fiber surface in slurry.
A kind of paper pulp, containing slurry and water, in this paper pulp, the weight/mass percentage composition of slurry is
20%-35%.This paper pulp also include being adsorbed in the sodium carboxymethyl cellulose of fiber surface in slurry,
The anion group that sodium hydroxyethlcellulose or carboxymethyl starch sodium are formed, carboxymethyl cellulose
The addition of sodium, sodium hydroxyethlcellulose or carboxymethyl starch sodium is over dry stock quality
0.1-1%。
A kind of by the paper obtained by above-mentioned paper pulp.
The slurry of the high concentration using weight/mass percentage composition to be 20%-35%, and in this slurry
Add the CMC of the 0.1%-1% of over dry stock quality, described rubbing can be made to process to enter smoothly
OK, and it is greatly improved the negative charge amount that fiber surface in paper pulp is carried, and then significantly improves paper
The performance such as the lubricity of fiber, tearability in slurry.Due to the slurry processing method of the present invention,
Without slurry being carried out the regulation of pH value, substantially reducing slurry and processing the time, the most greatly
Improve greatly production efficiency.It addition, must regulate without carrying out pH value, also will not be because of inorganic
Acid and/or the addition of pH buffer and cause the corrosion to paper making equipment.
Detailed description of the invention
Present pre-ferred embodiments provides a kind of slurry processing method, mainly comprises the steps:
The slurry of preparation high concentration, its concrete steps and technological parameter be: use needle slurry,
At least one in the fibers such as broad-leaved slurry, straw pulp, bamboo pulp and secondary stock is raw material, to institute
Stating adds water in raw material is configured to the slurry of high concentration.The weight/mass percentage composition of this slurry is
20%-35%.It is also preferred that the left the weight/mass percentage composition of this slurry is 30%-35%.
Sodium carboxymethyl cellulose (CMC) is added: provide a powdered in this slurry
CMC, the substitution value of this C MC is 0.2-0.6.This CMC can be rapid-dissoved.To institute
Stating the CMC adding certain mass in slurry, the addition of this CMC is over dry stock quality
0.1-1%, preferably 0.1-0.3%.
It should be understood that the CMC of half dissolved state also can be used to replace with the mixed liquor of water
The CMC of described powdered.
It should be understood that described CMC can be also sodium hydroxyethlcellulose, carboxymethyl starch
Sodium etc. can provide the material of anion group to be replaced in rubbing processes.
The above-mentioned slurry containing CMC is carried out rubbing process, its concrete grammar and technique ginseng
Number is: provide a kneading machine (such as being produced the commodity sold by voith company), by above-mentioned
Slurry containing CMC puts in this kneading machine, and the pressure arranging kneading machine is
0.08-0.12Mpa, the outlet temperature of kneading machine is about 50-90 DEG C, and speed of agitator is
10-50r/min, rubs and stir process 10-30min the above-mentioned slurry containing CMC,
Make CMC combine a certain amount of moisture and produce substantial amounts of anion group, be adsorbed onto simultaneously
Fiber surface.
Slurry after above-mentioned process carries out dissipate slurry process, in case in follow-up papermaking green end
Add other cationic auxiliaries and this slurry is carried out pulp property test.This dispersion processes
Concrete grammar and technological parameter be: the slurry after rubbing being processed and water are mixed into mixed liquor,
In this mixed liquor, the weight/mass percentage composition of slurry is 0.6%-1.5%.One starch dispensing machine (ratio is provided
As produced the commodity sold by BTG company), described mixed liquor is placed in this starch dispensing machine,
Stir 10-30min with the speed of 30-50r/s, i.e. prepare in can direct plungeing into paper machine system and join
Copy the paper pulp of use.
In described rubbing processing procedure, when the weight/mass percentage composition of slurry is less than 20%,
Described slurry is prone to because being concentrated by mechanical presses dehydration, and will run off in dehydration
Substantial amounts of CMC；When the weight/mass percentage composition of slurry is higher than 45%, slurry is close to leather hard
State, so will be unable to carry out rubbing process.When the addition of CMC is less than over dry slurry matter
Amount 0.1% time, it is difficult to significantly improve fiber surface in the paper pulp after rubbing processes and carried
Negative charge amount；When the addition of CMC is higher than the 1% of over dry stock quality, it is difficult to make
The anion group uniform adsorption that CMC produces is to fiber surface in paper pulp.Therefore, matter is used
Amount percentage composition is the slurry of the high concentration of 20%-35%, and adds oven dry stock in this slurry
The CMC of the 0.1%-1% of material quality, can make described rubbing process and be smoothed out, and significantly carry
The negative charge amount that in high paper pulp, fiber surface is carried, and then significantly improve the profit of fiber in paper pulp
The performance such as slip, tearability.Slurry processing method due to the present invention, it is not necessary to slurry is entered
The regulation of row pH value, substantially reduces slurry and processes the time, so substantially increase production
Efficiency.It addition, must regulate without carrying out pH value, also will not delay because of mineral acid and/or pH
Rush the addition of liquid and cause the corrosion to paper making equipment.
A kind of by the paper pulp obtained by said method, containing slurry and water in this paper pulp, this paper
In slurry, the weight/mass percentage composition of slurry is 20%-35%.Possibly together with carboxymethyl cellulose in this paper pulp
Any one in element sodium, sodium hydroxyethlcellulose and carboxymethyl starch sodium.Carboxymethyl cellulose
The anion group that sodium, sodium hydroxyethlcellulose or carboxymethyl starch sodium are formed is adsorbed in slurry
The surface of middle fiber, in this slurry, the anion adsoptivity on the surface of fiber is 70-80%.Carboxylic
The quality of sodium carboxymethylcellulose pyce, sodium hydroxyethlcellulose or carboxymethyl starch sodium is over dry slurry
The 0.1-1% of quality, preferably 0.1-0.3%.
A kind of by the paper obtained by described paper pulp.
Embodiment 1
Prepare slurry: starch as raw material with broad-leaved slurry and needle, wherein, the quality hundred of broad-leaved slurry
Dividing content is 25%, and the weight/mass percentage composition of needle slurry is 75%；Add water in this raw material by
It is configured to the slurry that weight/mass percentage composition is 30%；Powdered is added in this slurry
CMC(is produced the commodity sold by cpkelco company), the addition of this CMC is over dry
The 0.1% of stock quality.
Slurry is carried out rubbing process: the above-mentioned slurry containing C MC is put into this kneading machine
In, the pressure arranging kneading machine is 0.012Mpa, and the outlet temperature of kneading machine is about 75 DEG C,
Speed of agitator is 40r/min, rubs the above-mentioned slurry containing CMC and stir process
30min。
Dissipate slurry to process: the slurry after rubbing being processed and water are mixed into mixed liquor, this mixed liquor
The weight/mass percentage composition of middle slurry is 1.5%；Described mixed liquor is placed in starch dispensing machine (by BTG
Company provides) in, stir 10min with the speed of 50r/s, rear standby.
Afterwards, it is 2% standby for taking part size and being diluted to weight/mass percentage composition.
Embodiment 2
The method of the present embodiment is essentially identical with the slurry processing method of embodiment 1, different
It is that in the present embodiment, the addition of CMC is the 0.5% of over dry stock quality.
Embodiment 3
The method of the present embodiment is essentially identical with the slurry processing method of embodiment 1, different
It is that in the present embodiment, the addition of CMC is the 1% of over dry stock quality.
Comparative example 1
Starching as raw material with broad-leaved slurry and needle, wherein, the weight/mass percentage composition of broad-leaved slurry is
25%, the weight/mass percentage composition of needle slurry is 75%；Add water in this raw material and be configured to
Weight/mass percentage composition is the slurry of 2%；Use crutcher with the rotating speed of 600r/min again
Described slurry agitation is processed 5min；Backward described slurry in add mass fraction be 0.5%
CMC solution, and use crutcher with the rotating speed of 600r/min, described slurry to be stirred
Mix and process addition is over dry stock quality the 0.5% of 30min, this CMC.
Comparative example 2
Starching as raw material with broad-leaved slurry and needle, wherein, the weight/mass percentage composition of broad-leaved slurry is
25%, the weight/mass percentage composition of needle slurry is 75%；Add water in this raw material and be configured to
Weight/mass percentage composition is the slurry of 2%, and uses crutcher with the rotating speed of 600r/min
Described slurry agitation is processed 10min.
Streaming potential changing value (PCD) test and electronic (zeta) potential test:
1. the particle charging analyzer (being provided by BTG company) using model to be PCD-03,
The quality that embodiment 1, embodiment 2, embodiment 3, comparative example 1 and comparative example 2 are prepared
Percentage composition be 2% slurry carry out respectively PCD value test.
2. the zeta potentiometric analyzer (being provided by BTG company) using model to be SZP-06,
The quality that embodiment 1, embodiment 2, embodiment 3, comparative example 1 and comparative example 2 are prepared
Percentage composition be 2% slurry carry out zeta potential test respectively.
The test result of PCD value and zeta current potential sees table one.
Table one
| Sample | PCD value (ueq/l) | Zeta potential (mV) |
| Embodiment 1 | -11.5 | -30 |
| Embodiment 2 | -25 | -68 |
| Embodiment 3 | -125.5 | -95 |
| Comparative example 1 | -62.5 | -45 |
| Comparative example 2 | -9.2 | -21 |
From table one, embodiment 1, embodiment 2, embodiment 3 and the PCD of comparative example 1
Value and Zeta potential are not added with CMC relative to comparative example 2() all become more negative, slurry is described
In material, fiber surface is adsorbed with electronegative C MC group.But by embodiment 1, implement
In example 2, the zeta current potential relatively comparative example 2 of the paper pulp that slurry prepares becomes more negative, and PCD
Value change is little, illustrates that CMC major part is adsorbed to fiber surface.And by comparative example 1
The PCD value of the paper pulp that slurry prepares drops more compared with comparative example 2, illustrates in comparative example 1
CMC group mainly remains in water rather than adsorbed fiber surface in the slurry.Separately
Outward, the PCD value of the paper pulp that the slurry of embodiment 3 prepares drops more compared with comparative example 2, its
Reason is that the addition of CMC is relatively big, and the fiber surface adsorbable CMC base of slurry
The limited amount of group, therefore, still has substantial amounts of CMC group to be dissolved in water.
Visible, use the processing method of embodiment 1,2,3, be remarkably improved fibre stuff
The adsorbance of the CMC on surface, and then it is greatly improved the negative charge that fibre stuff surface is carried
Amount.
It addition, those skilled in the art also can be in the claims in the present invention scope of disclosure and essence
Make the various amendments in other form and details in god, add and replace.Certainly, these depend on
The various amendments made according to present invention spirit, add and the change such as replacement, all should be included in this
Invent within the scope of claimed.
Claims (8)
1. a slurry processing method, comprises the following steps:
The slurry providing a weight/mass percentage composition to be 20%-35%, adds carboxylic first in this slurry
Base sodium cellulosate, sodium hydroxyethlcellulose or carboxymethyl starch sodium, sodium carboxymethyl cellulose,
The addition of sodium hydroxyethlcellulose or carboxymethyl starch sodium is over dry stock quality
0.1-1%；
It is added with sodium carboxymethyl cellulose, sodium hydroxyethlcellulose or carboxymethyl starch by described
The slurry of sodium carries out rubbing process in kneading machine, makes sodium carboxymethyl cellulose, carboxyethyl fine
Dimension element sodium or carboxymethyl starch sodium form anion group and are adsorbed onto fiber surface in slurry.
2. slurry processing method as claimed in claim 1, it is characterised in that: carboxymethyl is fine
The addition of dimension element sodium, sodium hydroxyethlcellulose or carboxymethyl starch sodium is over dry stock quality
0.1-0.3%.
3. slurry processing method as claimed in claim 1, it is characterised in that: this slurry
Weight/mass percentage composition is 30%-35%.
4. slurry processing method as claimed in claim 1, it is characterised in that: this slurry with
At least one in needle slurry, broad-leaved slurry, straw pulp, bamboo pulp and secondary stock is raw material.
5. slurry processing method as claimed in claim 1, it is characterised in that: this carboxymethyl
The substitution value of sodium cellulosate is 0.2-0.6.
6. slurry processing method as claimed in claim 1, it is characterised in that: at this rubbing
The technological parameter of reason is: the pressure of this kneader is 0.08-0.12MPa, and outlet temperature is
50-90 DEG C, speed of agitator is 10-50r/min, rubs and stir process 10-30min.
7. slurry processing method as claimed in claim 1, it is characterised in that: described method
Also include that the slurry after processing rubbing carries out dissipating the step that slurry processes.
8. slurry processing method as claimed in claim 7, it is characterised in that: at this scattered slurry
The method of reason is: the slurry after rubbing being processed and water are mixed into mixed liquor, in this mixed liquor
The weight/mass percentage composition of slurry is 0.6%-1.5%；There is provided a starch dispensing machine, by described mixed liquor
It is placed in this starch dispensing machine speed stir process 10-30min with 30-50r/s.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210155186.9A CN103422390B (en) | 2012-05-17 | 2012-05-17 | Slurry processing method, by the paper pulp obtained by the method and the paper that prepared by this paper pulp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210155186.9A CN103422390B (en) | 2012-05-17 | 2012-05-17 | Slurry processing method, by the paper pulp obtained by the method and the paper that prepared by this paper pulp |
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| CN103422390A CN103422390A (en) | 2013-12-04 |
| CN103422390B true CN103422390B (en) | 2016-08-03 |
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| CN105603807A (en) * | 2015-12-25 | 2016-05-25 | 镇江大东纸业有限公司 | High-intensity medical composite base paper and production method thereof |
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| CN1203985A (en) * | 1997-06-26 | 1999-01-06 | 许春久 | Method for making packing paper by using waste residue produced in production of furfural or xylitol |
| CN1748059A (en) * | 2003-03-13 | 2006-03-15 | 王子制纸株式会社 | Production of paper |
| CN101048545A (en) * | 2004-11-05 | 2007-10-03 | 阿克佐诺贝尔公司 | Method for treating cellulose fibres |
| CN101622397A (en) * | 2006-11-09 | 2010-01-06 | 阿拉克鲁兹·塞鲁洛斯有限公司 | Use carboxymethyl cellulose to handle the method for cellulose pulp and the paper pulp that is obtained |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9704930D0 (en) * | 1997-02-05 | 1997-12-30 | Akzo Nobel Nv | Sizing of paper |
| TW440641B (en) * | 1997-12-24 | 2001-06-16 | Kimberly Clark Co | Paper products and methods for applying chemical additives to cellulosic fibers |
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2012
- 2012-05-17 CN CN201210155186.9A patent/CN103422390B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203985A (en) * | 1997-06-26 | 1999-01-06 | 许春久 | Method for making packing paper by using waste residue produced in production of furfural or xylitol |
| CN1748059A (en) * | 2003-03-13 | 2006-03-15 | 王子制纸株式会社 | Production of paper |
| CN101048545A (en) * | 2004-11-05 | 2007-10-03 | 阿克佐诺贝尔公司 | Method for treating cellulose fibres |
| CN101622397A (en) * | 2006-11-09 | 2010-01-06 | 阿拉克鲁兹·塞鲁洛斯有限公司 | Use carboxymethyl cellulose to handle the method for cellulose pulp and the paper pulp that is obtained |
Non-Patent Citations (2)
| Title |
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| CMC辅助打浆对竹浆纤维特性及成纸性能的影响;黄钊等;《中国造纸》;20070228;第26卷(第2期);第1-4页 * |
| 利用羧甲基纤维素优化湿部系统;李建等;《造纸化学品》;20060228(第1期);第40-44页 * |
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Effective date of registration: 20201225 Address after: Area D12, Yangpu Economic Development Zone, Danzhou City, Hainan Province Patentee after: Hainan jinhongye Paper Co.,Ltd. Patentee after: GOLD HONG YE PAPER Co.,Ltd. Address before: 2151 Shengjin Industrial Park, Suzhou, Jiangsu Province Patentee before: GOLD HONG YE PAPER Co.,Ltd. |