CN115807358A - Manufacturing method of partition paper with good air permeability - Google Patents
Manufacturing method of partition paper with good air permeability Download PDFInfo
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- CN115807358A CN115807358A CN202211485038.3A CN202211485038A CN115807358A CN 115807358 A CN115807358 A CN 115807358A CN 202211485038 A CN202211485038 A CN 202211485038A CN 115807358 A CN115807358 A CN 115807358A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Abstract
The invention discloses a method for manufacturing partition paper with good air permeability, which relates to the technical field of papermaking and comprises the following specific steps: step one, mixing bleaching needles and broad leaf pulp to obtain absolute dry pulp, then pulping by clear water, fully mixing with a talcum powder suspension after pulping, and then pulping by a double-disc mill; step two, storing the pulped pulp in a pulping pool, and then sequentially adding a wet strength agent PAE, cationic starch and alum to prepare pulp; step three, after the prepared slurry is subjected to concentration adjustment, the slurry is pumped to a flow system, cationic dispersed rosin size is added at the inlet of a first-stage deslagging pump, a non-ionic polymer wax stripping agent and a retention aid PEI are respectively added at the inlet and the outlet of a pressure screen, then the slurry enters a head box, and after the slurry is discharged, the slurry is dehydrated and formed on a fourdrinier paper machine; step four, squeezing and drying the formed wet paper by a drying cylinder respectively; and step five, carrying out press polish finishing on the paper sheet, and coiling to obtain the spacer paper with better air permeability.
Description
Technical Field
The invention relates to the technical field of papermaking, in particular to a method for manufacturing partition paper with good air permeability.
Background
The separation paper is used as the separation paper between the carrier plate glass, and plays an important role in protection and isolation in the carrier plate glass transportation process.
When the carrier plate glass is transported and stored for a long time, the spacing paper of the carrier plate glass can be mildewed due to factors such as moderate change of environment and the like, so that the carrier plate glass is corroded, and the expensive carrier plate glass is damaged. Moreover, the paper produced by the existing spacer paper manufacturing process has low air permeability and high mildew generation probability in the use process.
Disclosure of Invention
The present invention is to solve the above problems in the background art, and an object of the present invention is to provide a method for producing a spacer paper having good air permeability.
In order to realize the purpose, the invention provides the following technical scheme:
a method for manufacturing partition paper with good air permeability comprises the following steps:
step one, mixing bleaching needles and broad leaf pulp to obtain absolute dry pulp, then pulping by clear water, fully mixing with a talcum powder suspension after pulping, and then pulping by a double-disc mill;
step two, storing the pulped pulp in a pulping tank, and then sequentially adding a wet strength agent PAE, cationic starch and alum to prepare pulp;
step three, after the prepared slurry is subjected to concentration adjustment, the slurry is pumped to a flow system, cationic dispersed rosin size is added at the inlet of a first-section deslagging pump, a non-ionic polymer wax stripping agent and a retention aid PEI are respectively added at the inlet and the outlet of a pressure screen, then the slurry enters a head box, and after the slurry is discharged, the slurry is dehydrated and formed on a fourdrinier paper machine;
step four, the formed wet paper is respectively squeezed and dried by a drying cylinder;
and step five, performing calendaring finishing on the paper sheet, and coiling to obtain the partition paper.
Preferably, in the first step, the bleached needle pulp is Canadian Kalipp North American pine pulp, and the bleached broad leaf pulp is Japanese Zhongyue eucalyptus wet pulp; wherein, the mass ratio of the needle-leaved milk in the oven-dried milk is 3-12%, and the filling amount of the talcum powder is 0.5-1.0%.
Preferably, in the first step, the beating degree is controlled to be 30-35 DEG SR, and the wet weight is 6.0-8.0g.
Preferably, in the second step, the wet strength agent PAE is used in an amount of 1.2-1.4% relative to oven-dried pulp, the cationic starch is used in an amount of 0.7-0.9% relative to oven-dried pulp, and the alum is used in an amount of 0.3-0.5% relative to oven-dried pulp.
Preferably, in the third step, the dosage of the cation dispersed rosin size relative to the oven dry stock is 4-5%, the dosage of the nonionic polymer wax stripping agent relative to the oven dry stock is 0.2-0.4%, and the dosage of the retention aid PEI relative to the oven dry stock is 0.12-0.14%.
Preferably, in the fourth step, the temperature of the dryer is controlled to be 100-110 ℃ during drying, and the dryness of the paper sheet after the paper sheet is discharged from the dryer is controlled to be 93-95%.
Preferably, in the fifth step, the calendering pressure is 4.0-4.6Mpa, and the roll surface temperature is 85-95 ℃.
Preferably, it is characterized in that: the partition paper with good air permeability prepared in the steps has the basis weight of 45-50g/m & lt 2 & gt, the air permeability is larger than or equal to 15 mu m/Pa.s, the water absorption is 20-25g/m & lt 2 & gt, the longitudinal wet tensile strength is larger than or equal to 0.4kN/m, the wax rod strength is larger than or equal to 18A, and the partition paper is stiff, stable in thickness, good in evenness and good in smoothness.
Compared with the prior art, the invention has the beneficial effects that:
the invention is a manufacturing approach of the interval paper with good air permeability, has adopted the bleached eucalyptus wet pulp of Zhongyue brand on the choice of the main material, the energy consumption of beating is low, the fiber flexibility is good, the binding strength among the fibers is high, make the paper have high strength by oneself; the clear water is used for pulping, so that the interference of anionic garbage in a paper pulp system is reduced, the retention rate of wet strength agents, rosin size and other auxiliaries is improved, and the paper has good wet strength and water resistance; less talcum powder is added into the crushed pulp, resin stickies in a paper pulp system are adsorbed by utilizing the hydrophobic and oleophylic characteristics of the talcum powder, the possibility of paper defects such as dark spots, holes and the like is reduced, and the production efficiency and the product quality of a paper machine are improved; the beating degree is low, the air permeability of the finished paper is high, and the finished paper does not mildew after being stored for a long time; the soft calendaring roller has higher pressure, and meanwhile, the soft calendaring steel roller is heated by using heat conduction oil, so that the smoothness of finished paper and the bonding strength of paper surface are further improved.
Drawings
FIG. 1 is a flow chart of a manufacturing process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Detailed description of the preferred embodiment
Referring to fig. 1, the present invention provides a technical solution:
a method for manufacturing partition paper with good air permeability comprises the following steps:
adding Kelippu leaf pulp with the absolute dry mass ratio of 12% and middle-overtopped leaf wet pulp with the absolute dry mass ratio of 88% into a hydraulic pulp crusher, mixing and crushing the pulp with clear water, fully mixing the crushed pulp with a talcum powder suspension and continuously stirring, wherein the filling amount of talcum powder is 0.5%, then transferring the crushed pulp into a double-disc pulp grinder for pulping, wherein the pulping degree is 35 DEG SR, and the wet weight is 6.1g;
step two, storing the pulped pulp in a pulping tank, adding 1.3 percent (relative to oven dry pulp) of wet strength agent PAE, 0.7 percent (relative to oven dry pulp) of cationic starch and 0.4 percent (relative to oven dry pulp) of alum, and continuously stirring;
step three, after the pulp is subjected to concentration, pumping the pulp to a flow system, adding 4 percent (relative to the absolute dry pulp) of cation dispersed rosin size at an inlet of a first-stage deslagging pump, respectively adding 0.3 percent (relative to the absolute dry pulp) of nonionic polymer wax stripping agent and 0.12 percent (relative to the absolute dry pulp) of retention aid PEI at an inlet and an outlet of a pressure screen, then feeding the pulp into a pulp flowing box, and after pulp is discharged, dehydrating and forming on a fourdrinier machine;
step four, squeezing and drying the formed wet paper web by a drying cylinder, wherein the temperature of the drying cylinder is 100 ℃, and the dryness of the paper sheet discharged from the drying cylinder is 93%;
and step five, after the paper is discharged from the drying cylinder, transferring the paper sheet to a calendaring process, wherein the calendaring pressure is 4.0Mpa, the roll surface temperature is 85 ℃, and then reeling to obtain the spacer paper with good air permeability.
The partition paper with good air permeability prepared by the steps has the basis weight of 45g/m & lt 2 & gt, the air permeability is more than or equal to 15 mu m/Pa.s, the water absorption is 20-25g/m & lt 2 & gt, the longitudinal wet tensile strength is more than or equal to 0.4kN/m, the wax rod strength is more than or equal to 18A, and the partition paper is stiff, stable in thickness, good in uniformity and good in flatness.
Detailed description of the invention
Referring to fig. 1, the present invention provides a technical solution:
a manufacturing method of partition paper with good air permeability is prepared by the following specific steps:
adding 3% of Kelipu needle pulp and 97% of middle-overtopper broad leaf wet pulp in absolute dry mass ratio into a hydraulic pulp crusher, mixing and crushing the pulp with clear water, fully mixing the crushed pulp with a talcum powder suspension and continuously stirring, wherein the filling amount of talcum powder is 1.0%, then transferring the crushed pulp into a double-disc pulp grinder for pulping, the pulping degree is 30 DEG SR, and the wet weight is 8.0g;
step two, storing the pulped pulp in a pulping tank, adding 1.2 percent (relative to oven dry pulp) of wet strength agent PAE, 0.8 percent (relative to oven dry pulp) of cationic starch and 0.3 percent (relative to oven dry pulp) of alum, and continuously stirring;
step three, after the pulp is subjected to concentration, pumping the pulp to a flow system, adding 5 percent (relative to the absolute dry pulp) of cation dispersed rosin size at an inlet of a first-stage deslagging pump, respectively adding 0.2 percent (relative to the absolute dry pulp) of nonionic polymer wax stripping agent and 0.14 percent (relative to the absolute dry pulp) of retention aid PEI at an inlet and an outlet of a pressure screen, then feeding the pulp into a pulp flowing box, and after pulp is discharged, dehydrating and forming on a fourdrinier machine;
step four, squeezing and drying the formed wet paper web by a drying cylinder, wherein the temperature of the drying cylinder is 110 ℃, and the dryness of the paper sheet discharged from the drying cylinder is 93%;
and step five, after the paper is discharged from the drying cylinder, transferring the paper sheet to a calendaring process, wherein the calendaring pressure is 4.6Mpa, the roll surface temperature is 90 ℃, and then reeling to obtain the spacer paper with good air permeability.
The partition paper with good air permeability prepared by the steps has the basis weight of 50g/m & lt 2 & gt, the air permeability is more than or equal to 15 mu m/Pa.s, the water absorption is 20-25g/m & lt 2 & gt, the longitudinal wet tensile strength is more than or equal to 0.4kN/m, the wax rod strength is more than or equal to 18A, and the partition paper is stiff, stable in thickness, good in uniformity and good in flatness.
Detailed description of the invention
Referring to fig. 1, the present invention provides a technical solution:
a method for manufacturing partition paper with good air permeability comprises the following steps:
adding 6% of Kelipu needle blade pulp and 94% of middle-overtopped broad leaf wet pulp in absolute dry mass ratio into a hydraulic pulp crusher, mixing and crushing the pulp by using clear water, fully mixing the crushed pulp with a talcum powder suspension and continuously stirring, wherein the filling amount of talcum powder is 0.8%, then transferring the talcum powder suspension into a double-disc refiner for pulping, the pulping degree is 32-degree SR, and the wet weight is 7.3g;
step two, storing the pulped pulp in a pulping tank, adding 1.4 percent (relative to the absolute dry pulp) of wet strength agent PAE, 0.9 percent (relative to the absolute dry pulp) of cationic starch and 0.5 percent (relative to the absolute dry pulp) of alum, and continuously stirring;
step three, after the pulp is subjected to concentration, pumping the pulp to a flow system, adding 4.2 percent (relative to the absolute dry pulp) of cation dispersed rosin size at an inlet of a first-stage deslagging pump, respectively adding 0.4 percent (relative to the absolute dry pulp) of nonionic polymer wax stripping agent and 0.13 percent (relative to the absolute dry pulp) of retention aid PEI at an inlet and an outlet of a pressure screen, then feeding the pulp into a head box, and after pulp is discharged, dehydrating and forming on a fourdrinier machine;
step four, squeezing and drying the formed wet paper web by a drying cylinder, wherein the temperature of the drying cylinder is 104 ℃, and the dryness of the paper sheet discharged from the drying cylinder is 93 percent;
and step five, after paper is discharged from the drying cylinder, transferring the paper sheet to a calendaring process, wherein the calendaring pressure is 4.5 Mpa, the roll surface temperature is 95 ℃, and then coiling to obtain the spacer paper with good air permeability.
The spacing paper with good air permeability prepared by the steps has the basis weight of 47g/m & lt 2 & gt, the air permeability is more than or equal to 15 mu m/Pa.s, the water absorption is 20-25g/m & lt 2 & gt, the longitudinal wet tensile strength is more than or equal to 0.4kN/m, the wax rod strength is more than or equal to 18A, and the paper is soft, stiff, good in evenness and good in smoothness.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A method for manufacturing spacing paper with good air permeability is characterized in that: the preparation method comprises the following specific steps:
step one, mixing bleaching needles and broad leaf pulp to obtain absolute dry pulp, then pulping by clear water, fully mixing with a talcum powder suspension after pulping, and then pulping by a double-disc mill;
step two, storing the pulped pulp in a pulping pool, and then sequentially adding a wet strength agent PAE, cationic starch and alum to prepare pulp;
step three, after the prepared slurry is subjected to concentration adjustment, the slurry is pumped to a flow system, cationic dispersed rosin size is added at the inlet of a first-section deslagging pump, a non-ionic polymer wax stripping agent and a retention aid PEI are respectively added at the inlet and the outlet of a pressure screen, then the slurry enters a head box, and after the slurry is discharged, the slurry is dehydrated and formed on a fourdrinier paper machine;
step four, the formed wet paper is respectively squeezed and dried by a drying cylinder;
and step five, performing calendaring finishing on the paper sheet, and coiling to obtain the partition paper.
2. The method for manufacturing the spacer paper with good air permeability according to claim 1, wherein the method comprises the following steps: in the first step, the bleached needle pulp is Canadian Kalipp North American pine pulp, and the bleached broad leaf pulp is Japanese Zhongyue eucalyptus wet pulp; wherein, the mass ratio of the needle-leaved milk to the oven-dried milk is 3-12%, and the filling amount of the talcum powder is 0.5-1.0%.
3. The method for manufacturing the spacer paper with good air permeability according to claim 1, characterized in that: in the first step, the beating degree is controlled to be 30-35 DEG SR, and the wet weight is 6.0-8.0g.
4. The method for manufacturing the spacer paper with good air permeability according to claim 1, wherein the method comprises the following steps: in the second step, the dosage of the wet strength agent PAE is 1.2-1.4% relative to the oven dry pulp, the dosage of the cationic starch is 0.7-0.9% relative to the oven dry pulp, and the dosage of the alum is 0.3-0.5% relative to the oven dry pulp.
5. The method for manufacturing the spacer paper with good air permeability according to claim 1, wherein the method comprises the following steps: in the third step, the dosage of the cation dispersed rosin size relative to the oven dry stock is 4-5%, the dosage of the non-ionic polymer wax stripping agent relative to the oven dry stock is 0.2-0.4%, and the dosage of the retention aid PEI relative to the oven dry stock is 0.12-0.14%.
6. The method for manufacturing the spacer paper with good air permeability according to claim 1, characterized in that: in the fourth step, the temperature is controlled between 100 and 110 ℃ when the dryer dries, and the dryness of the paper sheet after the paper sheet is taken out of the dryer is controlled between 93 and 95 percent.
7. The method for manufacturing the spacer paper with good air permeability according to claim 1, wherein the method comprises the following steps: in the fifth step, the calendaring pressure is 4.0-4.6Mpa, and the roll surface temperature is 85-95 ℃.
8. The method for producing the highly air-permeable partition paper according to any one of claims 1 to 7, wherein: the partition paper with good air permeability prepared in the steps has the basis weight of 45-50g/m & lt 2 & gt, the air permeability is larger than or equal to 15 mu m/Pa.s, the water absorption is 20-25g/m & lt 2 & gt, the longitudinal wet tensile strength is larger than or equal to 0.4kN/m, the wax rod strength is larger than or equal to 18A, and the partition paper is stiff, stable in thickness, good in evenness and good in smoothness.
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| CN202211485038.3A CN115807358A (en) | 2022-11-24 | 2022-11-24 | Manufacturing method of partition paper with good air permeability |
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| CN202211485038.3A CN115807358A (en) | 2022-11-24 | 2022-11-24 | Manufacturing method of partition paper with good air permeability |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702806A (en) * | 2016-12-31 | 2017-05-24 | 浙江华邦特种纸业有限公司 | Method for producing long-lasting antiseptic glass interval paper |
| CN107083721A (en) * | 2017-06-27 | 2017-08-22 | 陕西科技大学 | A kind of papermaking process of liquid-crystalline glasses feeding spaced papers |
| CN109629323A (en) * | 2018-12-25 | 2019-04-16 | 浙江恒达新材料股份有限公司 | A kind of high waterproof suction pipe facial tissue and preparation method thereof |
| CN109881526A (en) * | 2019-03-25 | 2019-06-14 | 浙江恒川新材料有限公司 | A kind of food-grade suction pipe facial tissue and preparation method thereof |
| CN110318282A (en) * | 2019-06-12 | 2019-10-11 | 浙江舜浦新材料科技有限公司 | A kind of preparation method of uvioresistant braiding body paper |
-
2022
- 2022-11-24 CN CN202211485038.3A patent/CN115807358A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702806A (en) * | 2016-12-31 | 2017-05-24 | 浙江华邦特种纸业有限公司 | Method for producing long-lasting antiseptic glass interval paper |
| CN107083721A (en) * | 2017-06-27 | 2017-08-22 | 陕西科技大学 | A kind of papermaking process of liquid-crystalline glasses feeding spaced papers |
| CN109629323A (en) * | 2018-12-25 | 2019-04-16 | 浙江恒达新材料股份有限公司 | A kind of high waterproof suction pipe facial tissue and preparation method thereof |
| CN109881526A (en) * | 2019-03-25 | 2019-06-14 | 浙江恒川新材料有限公司 | A kind of food-grade suction pipe facial tissue and preparation method thereof |
| CN110318282A (en) * | 2019-06-12 | 2019-10-11 | 浙江舜浦新材料科技有限公司 | A kind of preparation method of uvioresistant braiding body paper |
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