CN107254795B - A kind of preparation method of the natural fiber paper of heat resistant - Google Patents
A kind of preparation method of the natural fiber paper of heat resistant Download PDFInfo
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- CN107254795B CN107254795B CN201710472950.8A CN201710472950A CN107254795B CN 107254795 B CN107254795 B CN 107254795B CN 201710472950 A CN201710472950 A CN 201710472950A CN 107254795 B CN107254795 B CN 107254795B
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- Prior art keywords
- paper
- pulp
- preparation
- heat resistant
- natural fiber
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Classifications
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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
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives organic compounds
-
- 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
-
- 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
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
-
- 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
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
Abstract
The invention belongs to package paper processing technique fields, and in particular to a kind of preparation method of the natural fiber paper of heat resistant is configured to mixed slurry by true qualities softwood pulp and hardwood pulp, and by pulp concentration, nucleotide solution, defibrination after immersion is added；The slurry of milled is concentrated again, slurry is put into hermetic bag, under cryogenic equilibrium water conten；Copy paper, roll-in and drying are successively carried out, the binding liquid containing 6-membered heterocyclic compound is impregnated on its surface, obtains finished product after dry and hot pressing.The present invention has the advantage that the mechanical strength for improving paper compared with prior art, then the binding liquid containing 6-membered heterocyclic compound is impregnated in paper surface by impregnation again, drying, hot pressing, the chemical bond between fiber is set to connect into fibrillar meshwork structure, increase the physical entanglement point between fiber, promote with the chemical bonding of binding liquid, the paper strength obtained by guarantee while improves its high temperature resistant grade, increases the use scope of gained paper.
Description
Technical field
The invention belongs to package paper processing technique fields, and in particular to a kind of system of the natural fiber paper of heat resistant
Preparation Method.
Background technique
There are preferable mechanical strength, oil resistivity and weatherability with the paper that natural fiber produces, but when paper is in hot environment
When middle, cellulose molecular chain can gradually be broken degradation, so that the mechanical strength of paper be made sharply to decline, foreign countries' fifties use propylene
The paper that nitrile modified natural fibers are handled through cyaniding, Applicable temperature can be improved 20 DEG C；The sixties, U.S. etc. is using a series of peaces of addition
The method of agent is determined to improve the thermal stability of paper, as improved in fiber with one or more nitrogenous compound modified natural fibers
Nitrogen content makes natural fiber put on one layer of nitrogenous proximity suit, to prevent cellulose oxidation from degrading；After the nineties, various countries land
Continuous to develop various synthetic fibre papers, although heat-insulating capability is further improved, under the high temperature conditions, mechanical strength still can
It decreased significantly, it is difficult to meet the market demand, therefore, it is necessary to further study.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of preparation side of the natural fiber paper of heat resistant is provided
Method.
The present invention is achieved by the following technical solutions: a kind of preparation method of the natural fiber paper of heat resistant,
Including the following contents: mixed slurry is configured to by true qualities softwood pulp and hardwood pulp, is 3-4% by pulp concentration to water content,
The nucleotide solution for being equivalent to that the mass concentration of its weight 4-7% is 2-5% is added, after mixing evenly under conditions of 40-45 DEG C
It impregnates 1.5-2 hours, then uses defibrination unit defibrination, make 26-32 ° of SR of its beating degree；The slurry of milled is again concentrated to
Water content is 0.8-1%, and slurry is put into hermetic bag, standby equilibrium water conten 20-28 hours under conditions of temperature is 10-12 DEG C
With；By product dispersion after, copy paper, roll-in and drying are successively carried out, when being dried to water content is 30-35%, on its surface
The binding liquid containing 6-membered heterocyclic compound is impregnated, obtains finished product after dry and hot pressing.
As further improvement of these options, the weight ratio of the true qualities softwood pulp and hardwood pulp is 2-4:1.
As further improvement of these options, the defibrination unit includes a fluffer and two fiberizer strings
Connection.
As further improvement of these options, the electric current of the fiberizer is 300-320A.
As further improvement of these options, the mass concentration of the binding liquid containing 6-membered heterocyclic compound is
0.45-0.85g/L, wherein the polyether-ether-ketone, hydroxyethyl cellulose, xanthan gum and the hexa-member heterocycle that are 3:1:1:2 comprising weight ratio
Compound.
Drying as further improvement of these options, after the binding liquid of the dipping containing 6-membered heterocyclic compound
Temperature is 60-75 DEG C；Hot pressing temperature is 160-180 DEG C, pressure 3-4MPa.
The nucleotide solution is the DGTP 100mM solution provided by Shanghai Jun Rui Biotechnology Co., Ltd
Nucleotide solution.
The present invention is had the advantage that compared with prior art by addition nucleotide solution in the present invention, with composite fibre
Mashing, and equilibrium water under corresponding condition are increased between fiber molecule using base, phosphoric acid, the ionic bond in nucleotide solution
Binding site, to improve the mechanical strength of paper, then again by impregnation paper surface dipping contain 6-membered heterocyclic compound
Binding liquid, drying, hot pressing make the chemical bond between fiber connect into fibrillar meshwork structure, increase the physics between fiber
Entanglement point promotes with the chemical bonding of binding liquid, and the paper strength obtained by guarantee while improves its high temperature resistant grade, increases institute
Obtain the use scope of paper.
Specific embodiment
Embodiment 1
A kind of preparation method of the natural fiber paper of heat resistant, including the following contents: by true qualities softwood pulp and wealthy
Leaf wood pulp is configured to mixed slurry, is 3% by pulp concentration to water content, and being added and being equivalent to the mass concentration of its weight 5% is 4%
Nucleotide solution, impregnate 1.5-2 hours under conditions of 40-45 DEG C after mixing evenly, then use defibrination unit defibrination, make it
Beating degree is 28 ° of SR；It is 0.8-1% that the slurry of milled, which is again concentrated to water content, slurry is put into hermetic bag, in temperature
It is spare equilibrium water conten 24 hours under conditions of being 10 DEG C；By product dispersion after, successively carry out copy paper, roll-in and drying, when
When to be dried to water content be 33%, the binding liquid containing 6-membered heterocyclic compound is impregnated on its surface, is obtained after dry and hot pressing
Finished product.
Wherein, the weight ratio of the true qualities softwood pulp and hardwood pulp is 2-4:1；The defibrination unit includes one and dredges
Solution machine and two fiberizer series connection；The electric current of the fiberizer is 300-320A.
Wherein, the mass concentration of the binding liquid containing 6-membered heterocyclic compound is 0.45-0.85g/L, wherein including
Weight ratio is polyether-ether-ketone, hydroxyethyl cellulose, xanthan gum and the 6-membered heterocyclic compound of 3:1:1:2.
Wherein, the drying temperature after the binding liquid of the dipping containing 6-membered heterocyclic compound is 60-75 DEG C；Hot pressing temperature
It is 160-180 DEG C, pressure 3-4MPa.
The nucleotide solution is the DGTP 100mM solution provided by Shanghai Jun Rui Biotechnology Co., Ltd
Nucleotide solution.
Embodiment 2
A kind of preparation method of the natural fiber paper of heat resistant, including the following contents: by true qualities softwood pulp and wealthy
Leaf wood pulp is configured to mixed slurry, is 3-4% by pulp concentration to water content, and the mass concentration that addition is equivalent to its weight 4% is
5% nucleotide solution impregnates 1.5-2 hours under conditions of 40-45 DEG C after mixing evenly, then uses defibrination unit defibrination, make
Its beating degree is 26 ° of SR；It is 0.8-1% that the slurry of milled, which is again concentrated to water content, slurry is put into hermetic bag, in temperature
Degree is spare for equilibrium water conten 20 hours under conditions of 12 DEG C；By product dispersion after, successively carry out copy paper, roll-in and drying,
When being dried to water content is 35%, the binding liquid containing 6-membered heterocyclic compound is impregnated on its surface, after dry and hot pressing
To finished product.
Remaining content is in the same manner as in Example 1.
Embodiment 3
A kind of preparation method of the natural fiber paper of heat resistant, including the following contents: by true qualities softwood pulp and wealthy
Leaf wood pulp is configured to mixed slurry, is 3-4% by pulp concentration to water content, and the mass concentration that addition is equivalent to its weight 5% is
2% nucleotide solution impregnates 1.5-2 hours under conditions of 40-45 DEG C after mixing evenly, then uses defibrination unit defibrination, make
Its beating degree is 32 ° of SR；It is 0.8-1% that the slurry of milled, which is again concentrated to water content, slurry is put into hermetic bag, in temperature
Degree is spare for equilibrium water conten 28 hours under conditions of 10 DEG C；By product dispersion after, successively carry out copy paper, roll-in and drying,
When being dried to water content is 30%, the binding liquid containing 6-membered heterocyclic compound is impregnated on its surface, after dry and hot pressing
To finished product.
Remaining content is in the same manner as in Example 1.
Control group 1 is set, is 3-4% in pulp concentration to water content, nucleotide solution is not added, remaining content and embodiment 1
In it is identical；
Control group 2 is set, slurry is put into hermetic bag, it is equilibrium water conten 20-28 hours under normal temperature conditions, spare,
Remaining content is in the same manner as in Example 1；
Control group 3 is set, 6-membered heterocyclic compound in binding liquid is removed, remaining content is in the same manner as in Example 1；
Blank group is set, i.e., when pulp concentration to water content is 3-4%, does not add nucleotide solution；Under normal temperature conditions
Equilibrium water conten；6-membered heterocyclic compound, according to a conventional method papermaking are free of in binding liquid.
The made paper of above-mentioned each group is subjected to strength detection according to GB/T 453-2002 method, is recorded after the completion；Sample is existed
It is placed 24 hours under conditions of 300 DEG C, then after constant temperature and humidity is handled 4 hours, measures its intensity in the same way, and calculate
To the conservation rate of initial strength.
Table 1
| Group | Tensile index (Nm/g) | High temperature resistant conservation rate (%) |
| Embodiment 1 | 62 | 97.8 |
| Embodiment 2 | 64 | 96.9 |
| Embodiment 3 | 65 | 97.4 |
| Control group 1 | 56 | 94.3 |
| Control group 2 | 60 | 96.5 |
| Control group 3 | 54 | 92.8 |
| Blank group | 52 | 90.4 |
It can be seen that the choosing of the addition of nucleotide solution, equilibrium water conten condition and binding liquid ingredient by data in table 1
Selecting has certain influence to paper strength and high temperature resistant conservation rate, and wherein binding liquid ingredient influences high temperature resistance maximum, puts down
The moisture condition that weighs influences high temperature resistance minimum.
Claims (5)
1. a kind of preparation method of the natural fiber paper of heat resistant, which is characterized in that including the following contents: by true qualities needle
Wood pulp and hardwood pulp are configured to mixed slurry, are 3-4% by pulp concentration to water content, and addition is equivalent to its weight 4-7%'s
Mass concentration is the nucleotide solution of 2-5%, is impregnated under conditions of 40-45 DEG C after mixing evenly 1.5-2 hours, then with mill
Pulp grinder group defibrination makes 26-32 ° of SR of its beating degree；It is 0.8-1% that the slurry of milled, which is again concentrated to water content, and slurry is put
It is spare equilibrium water conten 20-28 hours under conditions of temperature is 10-12 DEG C into hermetic bag；By product dispersion after, according to
Secondary progress copy paper, roll-in and drying, when being dried to water content is 30-35%, on its surface, dipping contains 6-membered heterocyclic compound
Binding liquid, obtain finished product after dry and hot pressing；
The mass concentration of the binding liquid containing 6-membered heterocyclic compound is 0.45-0.85g/L, wherein being 3 comprising weight ratio:
Polyether-ether-ketone, hydroxyethyl cellulose, xanthan gum and the 6-membered heterocyclic compound of 1:1:2.
2. a kind of preparation method of the natural fiber paper of heat resistant as described in claim 1, which is characterized in that the true qualities
The weight ratio of softwood pulp and hardwood pulp is 2-4:1.
3. a kind of preparation method of the natural fiber paper of heat resistant as described in claim 1, which is characterized in that the defibrination
Unit includes a fluffer and two fiberizer series connection.
4. a kind of preparation method of the natural fiber paper of heat resistant as described in claim 1, which is characterized in that the defibrination
The electric current of machine is 300-320A.
5. a kind of preparation method of the natural fiber paper of heat resistant as described in claim 1, which is characterized in that the dipping
Drying temperature after binding liquid containing 6-membered heterocyclic compound is 60-75 DEG C；Hot pressing temperature is 160-180 DEG C, pressure 3-
4MPa。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710472950.8A CN107254795B (en) | 2017-06-21 | 2017-06-21 | A kind of preparation method of the natural fiber paper of heat resistant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710472950.8A CN107254795B (en) | 2017-06-21 | 2017-06-21 | A kind of preparation method of the natural fiber paper of heat resistant |
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| Publication Number | Publication Date |
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| CN107254795A CN107254795A (en) | 2017-10-17 |
| CN107254795B true CN107254795B (en) | 2019-04-23 |
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| CN201710472950.8A Active CN107254795B (en) | 2017-06-21 | 2017-06-21 | A kind of preparation method of the natural fiber paper of heat resistant |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532666A (en) * | 2014-12-02 | 2015-04-22 | 王庆艳 | High-strength flame-retardant paper and preparation method thereof |
| CN104822878A (en) * | 2012-12-07 | 2015-08-05 | 诺维信公司 | Improving drainage of paper pulp |
| CN105088849A (en) * | 2015-07-28 | 2015-11-25 | 金东纸业（江苏）股份有限公司 | Method for improving paper strength and papermaking pulp |
| CN105714596A (en) * | 2016-03-31 | 2016-06-29 | 金东纸业（江苏）股份有限公司 | Manufacturing method of paper |
-
2017
- 2017-06-21 CN CN201710472950.8A patent/CN107254795B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104822878A (en) * | 2012-12-07 | 2015-08-05 | 诺维信公司 | Improving drainage of paper pulp |
| CN104532666A (en) * | 2014-12-02 | 2015-04-22 | 王庆艳 | High-strength flame-retardant paper and preparation method thereof |
| CN105088849A (en) * | 2015-07-28 | 2015-11-25 | 金东纸业（江苏）股份有限公司 | Method for improving paper strength and papermaking pulp |
| CN105714596A (en) * | 2016-03-31 | 2016-06-29 | 金东纸业（江苏）股份有限公司 | Manufacturing method of paper |
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| Publication number | Publication date |
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| CN107254795A (en) | 2017-10-17 |
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