CN115652685B - Surface antistatic paper for paper tube and preparation process thereof - Google Patents
Surface antistatic paper for paper tube and preparation process thereof Download PDFInfo
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- CN115652685B CN115652685B CN202211385569.5A CN202211385569A CN115652685B CN 115652685 B CN115652685 B CN 115652685B CN 202211385569 A CN202211385569 A CN 202211385569A CN 115652685 B CN115652685 B CN 115652685B
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
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- Y02W30/64—Paper recycling
Abstract
The invention belongs to the technical field of papermaking, and in particular relates to surface antistatic paper for a paper tube and a preparation process thereof, wherein the basis weight of the surface antistatic paper for the paper tube is 60g/m 2 The allowable error range of transverse quantification is +/-1.0%, and the allowable error range of longitudinal quantification is +/-1.2%; the front smoothness is 70-90s; the smoothness of the back surface is 10-30s; surface resistivity < 10 6 The burst strength of omega cm is more than or equal to 300kPa; the longitudinal dry tensile strength is more than or equal to 40N/15mm; the longitudinal wet tensile strength is more than or equal to 15N/15mm; the air permeability is more than or equal to 10 mu m/Pa.s; the surface absorbency is 20-30%; the dryness of the finished paper is 92-94%; the preparation process of the surface antistatic paper for the paper tube comprises pulping, auxiliary material adding, streaming, paper making, rewinding and packaging; compared with the prior art, the invention has the advantages of good antistatic effect, smooth and flat surface, good adhesion, higher tension and the like.
Description
Technical Field
The invention belongs to the technical field of papermaking, and particularly relates to surface antistatic paper for a paper tube and a preparation process thereof.
Background
At present, the domestic paper tube industry rapidly develops, and the paper tube is widely applied to various fields and industries such as chemical fiber industry, film industry, printing industry, paper industry, metallurgical industry and the like. In chemical fiber industry, the surface of the paper tube is required to be smooth, the friction force between the paper tube and the chemical fiber is low, the cleanliness is high, static electricity is prevented, the surface of the existing paper tube is rough, the friction force between the paper tube and the chemical fiber is large, the chemical fiber at the bottommost layer is easy to produce and hook and tie, finally the chemical fiber is wasted, meanwhile, the static electricity is easy to produce due to the rough surface of the paper tube, the dust absorption is caused, the cleanliness of the chemical fiber is influenced, and static electricity is easy to produce in the process of winding and unwinding.
At present, a parchment paper tube is mostly used in the chemical fiber industry, namely, a layer of parchment paper is coated on the surface of the paper tube, but the anti-static capacity of the parchment paper is limited, the performance of the paper tube is affected, and the parchment paper has strong anti-permeation capacity to grease and water and poor glue absorption, so that the problem of poor adhesion with the paper tube exists, and the cost is increased for chemical fiber yarns due to the use of the parchment paper tube.
Disclosure of Invention
The invention provides surface antistatic paper for a paper tube and a preparation process thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme: the preparation process of the surface antistatic paper for the paper tube comprises the following steps of:
step one, pulping; firstly, respectively pulping bleached softwood pulp and bleached hardwood pulp by pulping, removing impurities and pulping, and then according to the bleached softwood pulp and the bleached hardwood pulp 3:7, adding dispersed carbon fibers in the pulp mixing process, wherein the adding amount of the carbon fibers is 3-5% of the adding amount of each ton of paper to obtain mixed pulp, and finally diluting the mixed pulp to the concentration of 2.8%;
step two, adding auxiliary materials; adding a dry strength agent and a wet strength agent into the diluted mixed slurry;
step three, streaming; sequentially passing the mixed slurry added with the dry strength agent and the wet strength agent in the second step through a sand remover, a pressure screen and a pulse attenuator, and finally reaching a head box;
step four, papermaking; the method comprises the steps that in the form of a single fourdrinier wire, pulp in a head box is distributed on a forming wire, then a wet paper web is formed through dehydration, the wet paper web sequentially passes through a pressing part and a drying part, and finally, the base paper is obtained through calendaring and coiling;
and fifthly, rewinding and packaging.
Preferably, the pulping comprises: respectively placing bleached softwood pulp and bleached hardwood pulp into a hydropulper for pulping, wherein the pulp concentration is 4.0-5.0%, respectively entering different pre-beating pools after pulping, respectively removing impurities from the softwood pulp and the hardwood pulp by a high-concentration slag remover, wherein the softwood pulp has longer fiber and is stiff and elastic, the wet weight of the fiber is required to be paid attention to in the pulping process, and pulping is carried out in series by adopting a double-disc mill and a conical pulping machine, and the pulping degree is controlled at 32+/-1 DEG SR;
the hardwood pulp fiber is fine and short, and is pulped by adopting a double-disc mill, the fine fiber and the split broom of the fiber are paid attention to in the pulping process, and the pulping degree is controlled to be 36+/-1 DEG SR; pulping softwood pulp and hardwood pulp, and respectively entering corresponding post-beating pools;
according to softwood pulp and hardwood pulp 3:7, proportioning in a proportioning tank, selecting chopped carbon fibers with the length of 3-5mm, putting the chopped carbon fibers with the addition amount of 3-5% of the addition amount of each ton of paper into water, adding low-molecular-weight polyacrylamide serving as a dispersing agent and an adhesive into the water, uniformly dispersing, adding the low-molecular-weight polyacrylamide into the proportioning tank, fully mixing the low-molecular-weight polyacrylamide with slurry in the proportioning tank, diluting the mixed slurry to the concentration of 2.8%, and then feeding the diluted slurry into a papermaking tank.
Preferably, the adding of the auxiliary materials comprises: adding a dry strength agent into the pre-papermaking pond, wherein the addition amount of the dry strength agent is 1.5-2.0% of the addition amount of each ton of paper; wet strength agent is added into the pre-papermaking pond, and the addition amount of the wet strength agent is 2.0-2.5% of the addition amount of each ton of paper.
Preferably, the streaming comprises: the pulp in the pre-papermaking pond is treated by a first-stage three-stage sand remover and then enters a pressure screen, and then enters a flow box through a pulse attenuator, the flow box adopts a dilution water flow box, and white water in an off-machine white water tank is subjected to treatment by the white water pressure screen and then enters the flow box to dilute the pulp in the flow box.
Preferably, the papermaking comprises: the papermaking adopts a single-fourdrinier form, the pulp is uniformly distributed on a forming net through a headbox, passes through a table roller, a chopping board, a wet suction box and a vacuum suction box, passes through a facing roller, and finally is dehydrated through a dehydration element such as a vacuum couch roller to form a wet paper web; the wet paper web is transferred to a pressing part through a vacuum suction transfer roller after vacuum couch, and then enters a drying part after being pressed by a three-roller two-nip composite press and a blind hole roller press, and the dryness of the paper web can reach 46-48%; after drying in the drying part, the dryness of the paper web can reach 92-94%, and after drying, the paper web is calendered by a double-nip soft calender and is coiled to obtain base paper.
Preferably, the rewinding and packaging comprises: the speed of the rewinding is set to 1200m/min, the maximum width of the rewinding is 2700mm, the maximum diameter of the rewinding is 1300mm, and the packaging is carried out after the rewinding.
The surface antistatic paper for the paper tube is prepared by the surface antistatic paper preparation process for the paper tube, wherein the surface antistatic paper for the paper tube is prepared from bleached softwood pulp, bleached hardwood pulp and carbon fiber, and the ratio of the bleached softwood pulp to the bleached hardwood pulp is 3:7, preparing a base material; the addition amount of the carbon fiber is 3-5% of each ton of paper.
Compared with the prior art, the invention has the advantages and positive effects that:
(1) The existing paper tube is easy to generate static electricity, dust is easy to adsorb, and the cleanliness of chemical fiber yarns is affected;
(2) The surface antistatic paper for the paper tube has high front smoothness, can ensure smooth and flat surface, has low back smoothness and can ensure good adhesion;
(3) In the prior art, the kraft paper has poorer gumming property, and the surface layer antistatic paper for the paper tube has higher air permeability than the kraft paper, so that the gumming property is obviously improved compared with the kraft paper;
(4) The surface antistatic paper for the paper tube has higher dry tensile strength and wet tensile strength, can obtain higher tension in the tube rolling process, and improves the surface smoothness of the paper tube.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the following description of the embodiments will briefly describe the drawings that are required to be used in the description:
fig. 1 is a flow chart of a process for preparing the surface antistatic paper for paper tubes according to example 1.
Detailed Description
In order that the above objects, features and advantages of the invention will be more clearly understood, a further description of the invention will be rendered by reference to the appended drawings and examples.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments of the disclosure that follow.
Example 1
The invention is further described below with reference to fig. 1, which is a process for preparing surface antistatic paper for paper tubes, wherein the process for preparing the surface antistatic paper for paper tubes comprises the following steps:
step one, pulping; firstly, respectively pulping bleached softwood pulp and bleached hardwood pulp by pulping, removing impurities and pulping, and then according to the bleached softwood pulp and the bleached hardwood pulp 3:7, adding dispersed carbon fibers in the pulp mixing process, wherein the adding amount of the carbon fibers is 3-5% of the adding amount of each ton of paper to obtain mixed pulp, and finally diluting the mixed pulp to the concentration of 2.8%;
step two, adding auxiliary materials; adding a dry strength agent and a wet strength agent into the diluted mixed slurry;
step three, streaming; sequentially passing the mixed slurry added with the dry strength agent and the wet strength agent in the second step through a sand remover, a pressure screen and a pulse attenuator, and finally reaching a head box;
step four, papermaking; the method comprises the steps that in the form of a single fourdrinier wire, pulp in a head box is distributed on a forming wire, then a wet paper web is formed through dehydration, the wet paper web sequentially passes through a pressing part and a drying part, and finally, the base paper is obtained through calendaring and coiling;
and fifthly, rewinding and packaging.
The pulping comprises the following steps: respectively placing bleached softwood pulp and bleached hardwood pulp into a hydropulper for pulping, wherein the pulp concentration is 4.0-5.0%, respectively entering different pre-beating pools after pulping, respectively removing impurities from the softwood pulp and the hardwood pulp by a high-concentration slag remover, wherein the softwood pulp has longer fiber and is stiff and elastic, the wet weight of the fiber is required to be paid attention to in the pulping process, and pulping is carried out in series by adopting a double-disc mill and a conical pulping machine, and the pulping degree is controlled at 32+/-1 DEG SR; the hardwood pulp fiber is fine and short, and is pulped by adopting a double-disc mill, the fine fiber and the split broom of the fiber are paid attention to in the pulping process, and the pulping degree is controlled to be 36+/-1 DEG SR; the softwood pulp and the hardwood pulp are pulped and then respectively enter a corresponding post-beating pond according to the softwood pulp and the hardwood pulp 3:7, proportioning in a proportioning tank, selecting chopped carbon fibers with the length of 3-5mm, putting the chopped carbon fibers with the addition amount of 3-5% of the addition amount of per ton of paper into water, adding low-molecular-weight polyacrylamide serving as a dispersing agent and an adhesive into the water, uniformly dispersing, adding the low-molecular-weight polyacrylamide into the proportioning tank, fully mixing the low-molecular-weight polyacrylamide with slurry in the proportioning tank, diluting the mixed slurry to the concentration of 2.8%, and then feeding the diluted slurry into a papermaking tank.
The softwood pulp is pulped in series by a double-disc mill and a conical pulping machine, so that the fiber humidity is reduced, and the paper forming performance is ensured; hardwood pulp is pulped by a double disc mill and pulped under medium consistency conditions, so that excessive cutting fibers can be well avoided.
The mixed slurry in the slurry mixing tank enters the pre-papermaking tank through a slurry lifting pipeline of a slurry lifting pump, concentration dilution equipment is arranged on the slurry lifting pipeline, and the concentration dilution equipment can dilute the mixed slurry to the concentration of 2.8%.
The auxiliary materials are added as follows: adding a dry strength agent into the pre-papermaking pond, wherein the addition amount of the dry strength agent is 1.5-2.0% of the addition amount of each ton of paper; wet strength agent is added into the pre-papermaking pond, and the addition amount of the wet strength agent is 2.0-2.5% of the addition amount of each ton of paper.
The dry strength agent and the wet strength agent are added into the papermaking pond, so that the dry tension and the wet tension of the paper can be increased.
Streaming includes: the pulp in the pre-papermaking pond is treated by a first-stage three-stage sand remover and then enters a pressure screen, and then enters a flow box through a pulse attenuator, the flow box adopts a dilution water flow box, and white water in an off-machine white water tank is subjected to treatment by the white water pressure screen and then enters the flow box to dilute the pulp in the flow box.
The slurry in the pre-papermaking pond still has partial impurities, and partial impurities are required to be removed by a first-stage three-stage sand remover.
The papermaking comprises: the papermaking adopts a single-fourdrinier form, the pulp is uniformly distributed on a forming net through a headbox, passes through a table roller, a chopping board, a wet suction box and a vacuum suction box, passes through a facing roller, and finally is dehydrated through a dehydration element such as a vacuum couch roller to form a wet paper web; the wet paper web is transferred to a pressing part through a vacuum suction transfer roller after vacuum couch, and then enters a drying part after being pressed by a three-roller two-nip composite press and a blind hole roller press, and the dryness of the paper web can reach 46-48%; after drying in the drying part, the dryness of the paper web can reach 92-94%, and after drying, the paper web is calendered by a double-nip soft calender and is coiled to obtain base paper.
The drying part is responsible for final dewatering of wet paper web, 8 groups of drying cylinders are adopted in the drying part, a double-row distribution mode is adopted, vacuum cylinders are adopted in the lower rows of 1-3 groups of drying cylinders, and 2 cooling cylinders are adopted in the 8 th group of drying cylinders.
Rewinding and packaging comprises: the speed of the rewinding is set to 1200m/min, the maximum width of the rewinding is 2700mm, the maximum diameter of the rewinding is 1300mm, and the packaging is carried out after the rewinding.
The surface antistatic paper for paper tubes prepared by the preparation process is subjected to main index detection, and the results are shown in table 1:
| index (I) | Unit (B) | Standard value | Detection value |
| Quantification of | g/m 2 | 60 | 60 |
| Surface resistivity | Ω·cm | ＜1*10 6 | 5.7*10 4 |
| Difference in transverse weight | ％ | ≤±1.0 | 0.8 |
| Difference in longitudinal weight | ％ | ≤±1.2 | 1.0 |
| Surface absorbency | ％ | 20-30 | 26 |
| Burst strength | kPa | ≥300 | 350 |
| Moisture content | ％ | 6-8 | 6.5 |
| Dry tensile strength in machine direction | N/15mm | ≥40 | 48 |
| Wet tensile strength in machine direction | N/15mm | ≥15 | 19 |
| Front smoothness | s | 70-90 | 83 |
| Smoothness of the reverse side | s | 10-30 | 13 |
| Air permeability | μm/Pa·s | ≥10 | 17 |
TABLE 1
The column of "standard values" in table 1 is the quality inspection standard of the surface antistatic paper for paper tubes.
The column "detection value" in table 1 is the average detection value after the surface antistatic paper for paper tube was subjected to multiple detection.
From table 1, it can be seen that:
the basis weight of the surface antistatic paper for the paper tube is 60g/m 2 The allowable error range of transverse quantification is +/-1.0%, and the allowable error range of longitudinal quantification is +/-1.2%.
The achievable properties of the surface antistatic paper for paper tubes are as follows:
the front smoothness is 70-90s;
the smoothness of the back surface is 10-30s;
surface resistivity < 10 6 Ω·cm
The burst strength is more than or equal to 300kPa;
the longitudinal dry tensile strength is more than or equal to 40N/15mm;
the longitudinal wet tensile strength is more than or equal to 15N/15mm;
the air permeability is more than or equal to 10 mu m/Pa.s;
the surface absorbency is 20-30%;
the dryness of the finished paper is 92-94%.
The main technical indexes of the product prepared by the method show that the surface antistatic paper for the paper tube has better transverse quantitative and longitudinal quantitative control, good uniformity of the paper, and longitudinal dry tensile force, longitudinal wet tensile force and air permeability higher than standard values.
The surface layer antistatic paper for the paper tube has low surface resistivity and good antistatic effect, can effectively solve the problem of dust adsorption on the surface of the paper tube, and can effectively avoid static electricity in the process of wire winding and unwinding.
The surface antistatic paper for the paper tube has better dry and wet tensile strength, can ensure higher winding tension after glue invasion, avoids paper breakage and can ensure good adhesion with the paper tube.
The surface layer antistatic paper for the paper tube has smooth surface, good cleanliness, strong adhesive absorbing capacity and tight adhesion with the paper tube.
The raw materials of the surface antistatic paper for the paper tube are bleached softwood pulp, bleached hardwood pulp and carbon fibers, the softwood pulp is pulped in series by adopting a double disc mill and a conical pulping machine, and the hardwood pulp is pulped by adopting the double disc mill, so that the quality index of finished paper is ensured.
After the carbon fiber is put into water, low molecular weight polyacrylamide is added for dispersing the carbon fiber, so that the carbon fiber is fully mixed with the slurry in the slurry preparation tank.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification and equivalent changes to the above-mentioned embodiments according to the technical substance of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (6)
1. The preparation process of the surface antistatic paper for the paper tube is characterized by comprising the following steps of:
step one, pulping; firstly, respectively pulping bleached softwood pulp and bleached hardwood pulp, removing impurities and pulping, wherein the softwood pulp is in series connection with a conical pulping machine through a double disc mill, the pulping degree is controlled to be 32+/-1 DEG SR, the hardwood pulp is in pulping through the double disc mill, the pulping degree is controlled to be 36+/-1 DEG SR, and the bleached softwood pulp and the bleached hardwood pulp are pulped under medium-consistency conditions, and then the bleached softwood pulp and the bleached hardwood pulp are subjected to 3:7, adding chopped carbon fiber in the pulp preparing process, adding low-molecular polyacrylamide as a dispersing agent and an adhesive, wherein the adding amount of the carbon fiber is 3-5% of the adding amount of each ton of paper to obtain mixed pulp, and finally diluting the mixed pulp until the concentration is 2.8%, and then entering a papermaking front tank;
step two, adding auxiliary materials; adding a dry strength agent and a wet strength agent into the diluted mixed slurry;
step three, streaming; the mixed slurry added with the dry strengthening agent and the wet strengthening agent in the second step sequentially passes through a sand remover, a pressure screen and a pulse attenuator and finally reaches a head box, and the flow comprises the following steps: the pulp in the pre-papermaking pond is treated by a first-stage three-stage sand remover and then enters a pressure screen, and then enters a flow box through a pulse attenuator, wherein the flow box adopts a dilution water flow box, and white water in an off-machine white water tank is subjected to treatment by the white water pressure screen and then enters the flow box to dilute the pulp in the flow box;
step four, papermaking; the method comprises the steps of adopting a single-fourdrinier mode, uniformly distributing slurry in a head box on a forming wire, dehydrating to form a wet paper web, sequentially passing through a pressing part and a drying part, and finally carrying out calendaring to obtain base paper, wherein the front smoothness of the base paper is 70-90s, and the back smoothness of the base paper is 10-30s;
and fifthly, rewinding and packaging.
2. The process for producing surface layer antistatic paper for paper tubes according to claim 1, wherein the pulping comprises: respectively placing bleached softwood pulp and bleached hardwood pulp into a hydropulper for pulping, wherein the pulp concentration is 4.0-5.0%, respectively entering different pre-beating pools after pulping, respectively removing impurities from the softwood pulp and the hardwood pulp by a high-concentration slag remover, wherein the softwood pulp has longer fibers, the fibers are stiff and elastic, and the wet weight of the fibers needs to be paid attention to in the pulping process;
the hardwood pulp fiber is fine and short, and is pulped by adopting a double-disc mill, wherein the fine fiber and the split broom of the fiber are paid attention to in the pulping process, and the softwood pulp and the hardwood pulp respectively enter a corresponding post-beating pond after being pulped;
according to softwood pulp and hardwood pulp 3:7, proportioning in a proportioning tank, selecting chopped carbon fibers with the length of 3-5mm, putting the chopped carbon fibers with the addition amount of 3-5% of the addition amount of each ton of paper into water, adding low-molecular-weight polyacrylamide serving as a dispersing agent and an adhesive into the water, uniformly dispersing, adding the low-molecular-weight polyacrylamide into the proportioning tank, fully mixing the low-molecular-weight polyacrylamide with slurry in the proportioning tank, diluting the mixed slurry to the concentration of 2.8%, and then feeding the diluted slurry into a papermaking tank.
3. The process for preparing surface antistatic paper for paper tubes according to claim 1, wherein the adding of the auxiliary materials comprises:
adding a dry strength agent into the pre-papermaking pond, wherein the addition amount of the dry strength agent is 1.5-2.0% of the addition amount of each ton of paper;
wet strength agent is added into the pre-papermaking pond, and the addition amount of the wet strength agent is 2.0-2.5% of the addition amount of each ton of paper.
4. The process for producing surface layer antistatic paper for paper tubes according to claim 1, wherein the papermaking comprises: the papermaking adopts a single-fourdrinier form, the pulp is uniformly distributed on a forming net through a head box, passes through a table roller, a chopping board, a wet suction box and a vacuum suction box, passes through a facing roller, and finally is dehydrated through a vacuum couch roller to form a wet paper web;
transferring the wet paper web to a pressing part through a vacuum suction transfer roller after vacuum couch, and then entering a drying part after three-roller two-nip compound pressing and one blind hole roller pressing, wherein the dryness of the paper web is 46-48%;
and after drying in a drying part, the dryness of the paper web is 92-94%, and after drying, the paper web is calendered by a double-nip soft calender and is coiled to obtain the base paper.
5. The process for preparing surface layer antistatic paper for paper tubes according to claim 1, wherein the rewinding and packaging comprises: the speed of the rewinding is set to 1200m/min, the maximum width of the rewinding is 2700mm, the maximum diameter of the rewinding is 1300mm, and the packaging is carried out after the rewinding.
6. A surface antistatic paper for paper tubes prepared by the process for preparing a surface antistatic paper for paper tubes according to any one of claims 1 to 5, characterized in that the basis weight of the surface antistatic paper for paper tubes is 60g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The surface resistivity of the surface antistatic paper for the paper tube is less than 10 6 Ω·cm。
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| CN103711022A (en) * | 2014-01-08 | 2014-04-09 | 山东天地缘实业有限公司 | Carbon fiber high-strength corrugated raw board and preparing method thereof |
| JP2016016951A (en) * | 2014-07-09 | 2016-02-01 | 大王製紙株式会社 | Paper tube and sanitary paper roll |
| CN105624915A (en) * | 2016-01-04 | 2016-06-01 | 仙鹤股份有限公司 | Papermaking technology of anti-static dust-free paper containing carbon fibers |
| CN109972454A (en) * | 2019-03-28 | 2019-07-05 | 汇胜集团平原纸业有限公司 | A kind of FB(is explosion-proof) paper tube base paper and its preparation process |
| JP2021055229A (en) * | 2019-10-01 | 2021-04-08 | 王子ホールディングス株式会社 | Paper tube paper base material and paper tube |
| CN113089358A (en) * | 2021-05-18 | 2021-07-09 | 汇胜集团股份有限公司 | Surface layer polishing base paper and preparation process thereof |
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2022
- 2022-11-07 CN CN202211385569.5A patent/CN115652685B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711022A (en) * | 2014-01-08 | 2014-04-09 | 山东天地缘实业有限公司 | Carbon fiber high-strength corrugated raw board and preparing method thereof |
| JP2016016951A (en) * | 2014-07-09 | 2016-02-01 | 大王製紙株式会社 | Paper tube and sanitary paper roll |
| CN105624915A (en) * | 2016-01-04 | 2016-06-01 | 仙鹤股份有限公司 | Papermaking technology of anti-static dust-free paper containing carbon fibers |
| CN109972454A (en) * | 2019-03-28 | 2019-07-05 | 汇胜集团平原纸业有限公司 | A kind of FB(is explosion-proof) paper tube base paper and its preparation process |
| JP2021055229A (en) * | 2019-10-01 | 2021-04-08 | 王子ホールディングス株式会社 | Paper tube paper base material and paper tube |
| CN113089358A (en) * | 2021-05-18 | 2021-07-09 | 汇胜集团股份有限公司 | Surface layer polishing base paper and preparation process thereof |
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