CN104674582A - Pulp, preparation method of pulp, and paper made of pulp - Google Patents
Pulp, preparation method of pulp, and paper made of pulp Download PDFInfo
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- CN104674582A CN104674582A CN201310641338.0A CN201310641338A CN104674582A CN 104674582 A CN104674582 A CN 104674582A CN 201310641338 A CN201310641338 A CN 201310641338A CN 104674582 A CN104674582 A CN 104674582A
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- pulp
- paper
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- pressure homogenizer
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- 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
- D21C9/001—Modification of pulp properties
- D21C9/007—Modification of pulp properties by mechanical or physical means
-
- 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
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
Abstract
A preparation method of pulp includes: providing chemical plant fiber pulp materials, and adjusting the concentration of the chemical plant fiber pulp materials is 0.1-10%; using a high-pressure homogenizer to process the chemical plant fiber pulp materials so as to prepare the pulp, wherein the processing pressure of the high-pressure homogenizer is 1-100MPa, and the processing section number of the high-pressure homogenizer is 1-10pass. The invention further provides the pulp prepared by the preparation method and paper made of the pulp. Compared with pulping methods in the prior art, the preparation method has the advantages that the chemical plant fiber pulp materials are processed by the high-pressure homogenizer, fiber surface devillicate degree is lowered evidently, and the paper made of the pulp is high in bulk.
Description
Technical field
The paper pulp that the preparation method that the present invention relates to a kind of paper pulp, the preparation method applying this paper pulp obtain and apply above-mentioned paper pulp and to manufacture paper with pulp obtained paper.
Background technology
The paper that high bulk paper is quantitatively less under referring to same thickness, it can reduce the paper pulp consumption in production process, also can reduce ambient pollution burden, economize energy simultaneously.In addition, finished product high bulk paper is light to be easy to carry about with one, and can save the cost of transportation of paper.Therefore, high bulk paper is more and more subject to people's attention.
Usually beater or fiberizer need be adopted in paper industry to carry out making beating process to chemical sizwe.Through the chemical sizwe fiber surface generation wire-dividing broom purification of making beating process, fiber surface can expose hydroxyl, and these all can reduce the one-tenth paper bulk of chemical sizwe.And the degree of usual chemical sizwe fiber wire-dividing broom purification is stronger, the hydroxyl that fiber surface exposes is more, and its chemical sizwe obtained becomes paper bulk lower.The making beating process of chemical sizwe like this greatly limit the lifting that chemical sizwe becomes paper bulk.
Summary of the invention
In view of this, the preparation method that a kind of paper pulp that can effectively solve the problem is provided is necessary.
In addition, there is a need to the paper pulp providing a kind of preparation method applying above-mentioned paper pulp to obtain.
In addition, there is a need to provide a kind of apply above-mentioned paper pulp and to manufacture paper with pulp obtained paper.
A preparation method for paper pulp, it comprises the steps:
Chemical vegetable-fibre slurry is provided and the concentration of this chemical vegetable-fibre slurry is adjusted within the scope of 0.1%-10%;
Adopt high pressure homogenizer to carry out the obtained described paper pulp of process to above-mentioned chemical vegetable-fibre slurry, the processing pressure of described high pressure homogenizer is in the scope of 1MPa-100MPa, and the process hop count of described high pressure homogenizer is in the scope of 1-10pass.
A kind of preparation method applying above-mentioned paper pulp obtains paper pulp.
A kind ofly apply above-mentioned paper pulp and to manufacture paper with pulp obtained paper.
The preparation method of paper pulp provided by the invention, high pressure homogenizer is adopted to process chemical vegetable-fibre slurry, to utilize in the whole process of high pressure homogenizer process slurry mainly to the cut-out of fiber and blasting stripping in the axial direction, rubbing action between fiber and fiber or between fiber and equipment is reduced, and the degree of fiber surface wire-dividing broom purification reduces.So, compared to the slurry that traditional methods of beating is obtained, the paper pulp utilizing preparation method of the present invention to obtain when obtaining same freedom, can have higher one-tenth paper bulk.
Detailed description of the invention
A preparation method for paper pulp, it comprises the steps:
(1) provide chemical vegetable-fibre slurry and the concentration of this chemical vegetable-fibre slurry is adjusted within the scope of 0.1%-10%.
Step process such as thering is provided chemical vegetable-fibre slurry, this chemical vegetable-fibre slurry completes conventional boiling, defibre, fragmentation, washing, screen and discongest obtains.This chemical string includes but are not limited to bleaching or unbleached chemical needlebush, chemical leaf wood and fibers in grass class.
Because the raw materials of chemical fibres under higher concentration are easily wound around, and the equipment of this chemical vegetable-fibre slurry of subsequent treatment is high pressure homogenizer, it needs slurry by the hole of narrow operating valve, occur to prevent fiber to be wound around the blocking causing operating valve, the concentration of this chemical vegetable-fibre slurry adjusts in the scope of 0.1-10% by the present invention, preferably, the concentration of this chemical vegetable-fibre slurry is adjusted in the scope of 0.5%-2.0%.
(2) adopt high pressure homogenizer to process obtained paper pulp to above-mentioned chemical vegetable-fibre slurry, the processing pressure of described high pressure homogenizer is in the scope of 1-100MPa, and process hop count is in the scope of 1-10pass.
Preferably, the processing pressure regulation and control of high pressure homogenizer are in the scope of 10-100MPa.
Preferably, this chemical vegetable-fibre slurry is processed 1-3pass in high pressure homogenizer.
High pressure homogenizer can make the material of turbid liquid state under super-pressure effect, flow through the homogeneous chamber with special internal structure at a high speed, this homogeneous chamber can hold for material and react, and the homogeneous chamber of high pressure homogenizer used in the present invention is collision type homogeneous chamber or correlation type homogeneous chamber.Inside due to homogeneous chamber has specially designed geometry, therefore under the effect of homogenizing valve regulating pressure, high-pressure solution is fast by homogeneous chamber, rapid decompression makes material can be subject to the mechanical force such as high speed shear, high frequency oscillation, cavitation and convection currents impinge and corresponding fuel factor simultaneously, the Mechanochemical Effect caused thus can induce the macromolecular physics of material, chemistry and structural property to change, and finally reaches the effect of homogeneous.
Mashing step in the preparation process of traditional chemical slurry normally adopts beater or fiberizer to process.As previously mentioned, through the chemical sizwe fiber surface generation wire-dividing broom purification of making beating process, fiber surface can expose hydroxyl, and these all can reduce the one-tenth paper bulk of chemical sizwe.And the degree of usual chemical sizwe fiber wire-dividing broom purification is stronger, the hydroxyl that fiber surface exposes is more, and its slurry obtained becomes paper bulk lower.Therefore adopt traditional making beating mode that chemical sizwe can be made to become the bulk of paper to reduce.This chemical vegetable-fibre slurry is placed in high pressure homogenizer process by the present invention, can significantly improve the bulk of slurry.This is because high pressure homogenizer is when processing string, before and after it, the high pressure of moment can produce blast action in the decompression process of low pressure, and string is cut off or explosion dispersion, this step is similar to the beating results of conventional beater or fiberizer, to utilize in the whole process of high pressure homogenizer process slurry mainly to the cut-out of fiber and blasting stripping in the axial direction, compared to traditional pulping process, rubbing action between fiber and fiber or between fiber and equipment is less, the degree of fiber surface wire-dividing broom purification is few, its hydroxyl exposed is just less, the chemical vegetable-fibre slurry made becomes the bulk of paper just high.Therefore, compared to traditional methods of beating, the paper that the paper pulp that the present invention utilizes the chemical vegetable-fibre slurry of high pressure homogenizer process to obtain is manufactured paper with pulp out has higher bulk.
For ensure chemical vegetable-fibre slurry after high pressure homogenizer process can in high-speed paper machine normal dehydration forming, the freedom of the chemical vegetable-fibre slurry after high pressure homogenizer process preferably controls within the scope of 350-450ml.
A kind of paper pulp applied above-mentioned pulp making process and obtain.
A kind of application contains above-mentioned paper pulp manufactures paper with pulp obtained paper.The paper that the slurry obtained compared to making beating mode of the prior art is manufactured paper with pulp out, the paper that the present invention manufactures paper with pulp out has higher bulk.
Below by embodiment, the present invention is specifically described.
Comparative example 1
Initial concentration is the bleached softwood sulfate slurry of 1.67%, and initial freedom is 620ml, adopts trough-style pulp beater under 4kg beating pressure, to process 30min to this slurry.
Comparative example 2
Initial concentration is the bleached softwood sulfate slurry of 1.67%, and initial freedom is 620ml, adopts trough-style pulp beater under 4kg beating pressure, to process 45min to this slurry.
Embodiment 1
Initial concentration is the bleached softwood sulfate slurry of 0.5%, and initial freedom is 620ml, adopts high pressure homogenizer under 1Mpa pressure, to process 10 pass to this slurry.
Embodiment 2
Initial concentration is the bleached softwood sulfate slurry of 0.5%, and initial freedom is 620ml, adopts high pressure homogenizer under 10Mpa pressure, to process 3 pass to this slurry.
Embodiment 3
Initial concentration is the bleached softwood sulfate slurry of 0.5%, and initial freedom is 620ml, adopts high pressure homogenizer under 30Mpa pressure, to process 1 pass to this slurry.
Embodiment 4
Initial concentration is the bleached softwood sulfate slurry of 0.5%, and initial freedom is 620ml, adopts high pressure homogenizer under 100Mpa pressure, to process 1 pass to this slurry.
Embodiment 5
Initial concentration is the bleached softwood sulfate slurry of 0.5%, and initial freedom is 620ml, adopts high pressure homogenizer under 30Mpa pressure, to process 2 pass to this slurry.
Embodiment 6
Initial concentration is the bleached softwood sulfate slurry of 1.0%, and initial freedom is 620ml, adopts high pressure homogenizer under 30Mpa pressure, to process 2 pass to this slurry.
Embodiment 7
Initial concentration is the bleached softwood sulfate slurry of 2.0%, and initial freedom is 620ml, adopts high pressure homogenizer under 30Mpa pressure, to process 2 pass to this slurry.
By the data of above-mentioned 2 comparative examples and the pulp freeness obtained by 7 embodiments and manufacture paper with pulp into paper the data of bulk as shown in following table one.
Table one
| Experiment | Freedom ml | Bulk cm 3/g |
| Comparative example 1 | 450 | 1.63 |
| Comparative example 2 | 350 | 1.54 |
| Embodiment 1 | 560 | 1.85 |
| Embodiment 2 | 450 | 1.76 |
| Embodiment 3 | 450 | 1.74 |
| Embodiment 4 | 320 | 1.61 |
| Embodiment 5 | 340 | 1.68 |
| Embodiment 6 | 370 | 1.70 |
| Embodiment 7 | 400 | 1.72 |
As shown in Table 1:
1. in above-mentioned 9 groups of experiments, the freedom of the slurry in comparative example 1 and comparative example 2 after beater process is respectively 350ml and 450ml, the freedom of the slurry in embodiment 1-7 after high pressure homogenizer process has embodiment 2-3 in the scope of 350-450ml, embodiment 6-7 these 4 groups, the experimental data contrasting the one-tenth Paper bulk of above-mentioned 7 groups draws, the Paper bulk that the slurry that the Paper bulk that the slurry through high pressure homogenizer process is manufactured paper with pulp out is significantly higher than the beater process that prior art adopts is manufactured paper with pulp out.
2. drawn by embodiment 3 and 4, when other condition is identical, namely the process hop count of initial freedom, initial slurry concentration, high pressure homogenizer is identical, and the processing pressure of high pressure homogenizer is higher, and slurry becomes the bulk of paper lower.
3. drawn by embodiment 3 and 5, when other condition is identical, namely the processing pressure of initial freedom, initial slurry concentration, high pressure homogenizer is identical, and the process hop count of high pressure homogenizer is lower, and slurry becomes the bulk of paper higher.
4. drawn by embodiment 5,6 and 7, when other condition is identical, namely the processing pressure of initial freedom, high pressure homogenizer, process hop count are identical, and initial slurry concentration is higher, and slurry becomes the bulk of paper higher.
Pulp making process provided by the invention, high pressure homogenizer is adopted to replace making beating/fiberizer to process chemical vegetable-fibre slurry, to utilize in the whole process of high pressure homogenizer process slurry mainly to the cut-out of fiber and blasting stripping in the axial direction, rubbing action between fiber and fiber or between fiber and equipment is reduced, and the degree of fiber surface wire-dividing broom purification reduces.So, compared to the slurry that traditional methods of beating is obtained, the paper pulp utilizing method of the present invention to obtain when obtaining same freedom, can have higher one-tenth paper bulk.
Those skilled in the art also can make various amendments in other form and details, interpolation and replacement in the claims in the present invention scope of disclosure and spirit.Certainly, the changes such as these various amendments made according to the present invention's spirit, interpolation and replacement, all should be included within the present invention's scope required for protection.
Claims (8)
1. a preparation method for paper pulp, it comprises the steps:
Chemical vegetable-fibre slurry is provided and the concentration of this chemical vegetable-fibre slurry is adjusted in the scope of 0.1-10%;
Adopt high pressure homogenizer to carry out the obtained described paper pulp of process to above-mentioned chemical vegetable-fibre slurry, the processing pressure of described high pressure homogenizer is in the scope of 1MPa-100MPa, and process hop count is in the scope of 1-10pass.
2. the preparation method of paper pulp as claimed in claim 1, is characterized in that: this chemical string is at least one in chemical needlebush, chemical leaf wood, fibers in grass class raw material.
3. the preparation method of paper pulp as claimed in claim 1, is characterized in that: before employing high pressure homogenizer is to described chemical vegetable-fibre slurry process, the concentration of this chemical vegetable-fibre slurry be adjusted in the scope of 0.5%-2.0%.
4. the preparation method of paper pulp as claimed in claim 1, is characterized in that: the processing pressure regulation and control of high pressure homogenizer are in the scope of 10-100MPa.
5. the preparation method of paper pulp as claimed in claim 1, is characterized in that: this chemical vegetable-fibre slurry is processed 1-3pass in high pressure homogenizer.
6. as claim requires the preparation method of the paper pulp as described in 1, it is characterized in that: through the freedom of the chemical vegetable-fibre slurry of high pressure homogenizer process in the scope of 350-450ml.
7. an application rights requires the paper pulp that the preparation method of paper pulp described in any one in 1-6 obtains.
8. an application rights requires the paper pulp described in 7 to manufacture paper with pulp obtained paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310641338.0A CN104674582B (en) | 2013-12-03 | 2013-12-03 | Paper pulp and preparation method thereof, using paper made from the paper pulp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310641338.0A CN104674582B (en) | 2013-12-03 | 2013-12-03 | Paper pulp and preparation method thereof, using paper made from the paper pulp |
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| Publication Number | Publication Date |
|---|---|
| CN104674582A true CN104674582A (en) | 2015-06-03 |
| CN104674582B CN104674582B (en) | 2017-10-17 |
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Citations (6)
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|---|---|---|---|---|
| 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 |
| CN101818467A (en) * | 2010-03-29 | 2010-09-01 | 南京林业大学 | Method for manufacturing cellulose micro-nano-material enhanced adhesive by using enzyme treatment and mechanical method |
| CN103147355A (en) * | 2013-02-26 | 2013-06-12 | 中南林业科技大学 | Preparation method of biomass nano fiber conductive paper |
| EP2622133A1 (en) * | 2010-10-01 | 2013-08-07 | FPInnovations | Cellulose-reinforced high mineral content products and methods of making the same |
| CN103334327A (en) * | 2013-07-10 | 2013-10-02 | 南京林业大学 | Simple method for preparing nanometer cellulose |
| CN103866610A (en) * | 2014-02-25 | 2014-06-18 | 苏州恒康新材料有限公司 | Defoamer for paper pulp and preparation method thereof |
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2013
- 2013-12-03 CN CN201310641338.0A patent/CN104674582B/en active Active
Patent Citations (6)
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|---|---|---|---|---|
| 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 |
| CN101818467A (en) * | 2010-03-29 | 2010-09-01 | 南京林业大学 | Method for manufacturing cellulose micro-nano-material enhanced adhesive by using enzyme treatment and mechanical method |
| EP2622133A1 (en) * | 2010-10-01 | 2013-08-07 | FPInnovations | Cellulose-reinforced high mineral content products and methods of making the same |
| CN103147355A (en) * | 2013-02-26 | 2013-06-12 | 中南林业科技大学 | Preparation method of biomass nano fiber conductive paper |
| CN103334327A (en) * | 2013-07-10 | 2013-10-02 | 南京林业大学 | Simple method for preparing nanometer cellulose |
| CN103866610A (en) * | 2014-02-25 | 2014-06-18 | 苏州恒康新材料有限公司 | Defoamer for paper pulp and preparation method thereof |
Non-Patent Citations (2)
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| 张俊华等: "高压均质化处理对微纤化纤维素性质的影响", 《纤维素科学与技术》 * |
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