CN109338806A - A kind of strong sanitary paper production method - Google Patents
A kind of strong sanitary paper production method Download PDFInfo
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- CN109338806A CN109338806A CN201811187781.4A CN201811187781A CN109338806A CN 109338806 A CN109338806 A CN 109338806A CN 201811187781 A CN201811187781 A CN 201811187781A CN 109338806 A CN109338806 A CN 109338806A
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- concentration
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- slurried
- pulp
- paper
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Classifications
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/002—Tissue paper; Absorbent paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/14—Secondary fibres
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
- D21H21/20—Wet strength agents
Abstract
The present invention relates to pulp technology for making paper more particularly to a kind of strong sanitary paper production methods, include the following steps；S1, pulping: it will not float in chemical softwood pulp and true qualities softwood pulp class waste paper investment pulper, and obtain the magma that concentration range is 8~13%；S2, desanding: desanding operation is carried out to the magma that step S1 is obtained, obtains the slurry that concentration is 1%；S3, it discongests: by the slurry degradation at paper pulp；S4, concentration: screening operation is carried out to the paper pulp and dehydration concentration operation obtains paper pulp of the concentration greater than 4%；S5, defibrination: it is 4~5% to be slurried that the paper pulp by the concentration greater than 4%, which wears into concentration,；It is S6, with slurry: to be slurried that middle addition dosage is the 5kg/ tons of wet strength agents being slurried and dosage is that obtain concentration be 2.5% to be slurried to the 50kg/ tons of starch being slurried to described.Process of the present invention is relatively simple, produce and repairs more convenient, and the quality of toilet paper obtained is preferable.
Description
Technical field
The present invention relates to pulp technology for making paper more particularly to a kind of strong sanitary paper production methods.
Background technique
Waste paper is important renewable resource, and the recycling of waste paper is the regenerated papermaking former material for solving paper industry and facing
Material is deficient, energy shortage and it is seriously polluted the problems such as main path.China has a large amount of waste and old wrapping paper to generate every year,
Although these waste paper can be used repeatedly, still it is difficult to produce toilet paper high-quality, that intensity is high.Cause
This improves the quality and intensity of toilet paper how under the premise of guaranteeing production efficiency, while saving material, meeting green
Environmental protection concept is urgent problem to be solved in strong sanitary paper production method.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of strong sanitary that intensity is high, high-quality, environmentally protective
Paper production method.
In order to solve the technical problem, the technical solution adopted by the present invention are as follows: a kind of strong sanitary paper production method,
Include the following steps；
S1, pulping: it will not float in chemical softwood pulp and true qualities softwood pulp class waste paper investment pulper, and obtain concentration model
Enclose the magma for 8~13%；
S2, desanding: desanding operation is carried out to the magma that step S1 is obtained, obtains the slurry that concentration is 1%；
S3, it discongests: by the slurry degradation at paper pulp；
S4, concentration: screening operation is carried out to the paper pulp and dehydration concentration operation obtains paper pulp of the concentration greater than 4%；
S5, defibrination: it is 4~5% to be slurried that the paper pulp by the concentration greater than 4%, which wears into concentration,；
It is S6, with slurry: to be slurried that middle addition dosage is the 5kg/ tons of wet strength agents being slurried and dosage is 50kg/ tons and is slurried to described
Starch to obtain concentration be 2.5% to be slurried；
S7, molding: the concentration obtains forming slurry of the online concentration no more than 0.2% by forming for 2.5% be slurried；
S8, vacuum dehydration: dewatering operation is carried out to the forming slurry in the environment of vacuum degree is 30~40kPa；
S9, press dewatering: press dewatering operation is carried out to the forming slurry after step S8 dewatering operation；
S10, finished product: the post-job forming slurry of press dewatering successively passes through first drying, top sizing, secondary drying
With batch finished product toilet paper after operation.
The beneficial effects of the present invention are: a kind of strong sanitary paper production method does not float chemical softwood pulp and true qualities
Softwood pulp class waste paper successively passes through pulping, desanding, discongests, is concentrated, defibrination, with slurry, molding, vacuum dehydration and press dewatering
After finished product toilet paper is made, whole flow process is relatively simple, produce and repair it is more convenient, and the quality of toilet paper obtained compared with
It is good.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, it is explained below in conjunction with embodiment.
The most critical design of the present invention is: do not float chemical softwood pulp and true qualities softwood pulp class waste paper successively pass through it is broken
Slurry desanding, is discongested, is concentrated, finished product toilet paper is made after defibrination, with slurry, molding, vacuum dehydration and press dewatering.
The present invention provides a kind of strong sanitary paper production method, includes the following steps；
S1, pulping: it will not float in chemical softwood pulp and true qualities softwood pulp class waste paper investment pulper, and obtain concentration model
Enclose the magma for 8~13%；
S2, desanding: desanding operation is carried out to the magma that step S1 is obtained, obtains the slurry that concentration is 1%；
S3, it discongests: by the slurry degradation at paper pulp；
S4, concentration: screening operation is carried out to the paper pulp and dehydration concentration operation obtains paper pulp of the concentration greater than 4%；
S5, defibrination: it is 4~5% to be slurried that the paper pulp by the concentration greater than 4%, which wears into concentration,；
It is S6, with slurry: to be slurried that middle addition dosage is the 5kg/ tons of wet strength agents being slurried and dosage is 50kg/ tons and is slurried to described
Starch to obtain concentration be 2.5% to be slurried；
S7, molding: the concentration obtains forming slurry of the online concentration no more than 0.2% by forming for 2.5% be slurried；
S8, vacuum dehydration: dewatering operation is carried out to the forming slurry in the environment of vacuum degree is 30~40kPa；
S9, press dewatering: press dewatering operation is carried out to the forming slurry after step S8 dewatering operation；
S10, finished product: the post-job forming slurry of press dewatering successively passes through first drying, top sizing, secondary drying
With batch finished product toilet paper after operation.
From it is described description it is found that the beneficial effects of the present invention are: chemical softwood pulp and true qualities needle will not floated first
Obtains magma in wood pulp class waste paper investment pulper, and improves the concentration and quality of magma by desanding operation, by discongest by
The slurry degradation promotes the concentration of paper pulp further by dehydration concentration operation, again by defibrination at paper pulp, paper pulp, then
Certain wet strength agent is matched into paper pulp be slurried operation, online concentration is no more than 0.2%, to guarantee paper pulp through subsequent
Dewatering operation processing after intensity and toughness it is preferable, the last post-job forming slurry of press dewatering successively passes through first drying, table
Face sizing and batches finished product toilet paper after operation at secondary drying.
Further, the mixing time of the pulper in step S1 is 30~40 minutes.
By the description it is found that raw material stirs sufficiently during design guarantees pulping in this way, it is convenient for subsequent processing.
Further, the pulper uses 5m3Middle density hydraulic pulper, the pulper is using paper machine white water as dilute
Release water.
By the description it is found that being saved on the basis of guaranteeing product quality using paper machine white water as dilution water
This.
Further, step S1 further include: the pulper was shut down in pulping whipping process every 6~8 minutes primary
To carry out rubbish prune job.
By the description it is found that the purpose of timing cleaning rubbish is to improve stirring efficiency so as to improve stock quality.
Further, step S3 further include: the slurry is carried out discongesting operation by fluffer, and discongesting post-job can not lead to
The slurry group for crossing the sieve pore discharge of the fluffer enters vanning and sorts the good slurry for obtaining tailings and concentration is 1%, the good slurry weight
New to be sent into the pulp storage tank before screening, the tailings is re-fed into the pulper.
By the description it is found that the purpose for discongesting operation is to guarantee the pliability and skin-friendly of output toilet paper.
Further, step S6 further include: during with slurry, be slurried be all made of with wet strength agent at the uniform velocity feed and on one side plus
Material is stirred on one side, and feed time is 3~8 minutes, and mixing time is 13~18 minutes.
Further, the beating degree being slurried in step S7 is 30~40 ° of SR.
By the description it is found that being carried out simultaneously by ingredient and stirring operation and controlling beating degree in 30~40 ° of SR,
Further improve the quality being slurried.
Further, described be slurried in step S7 is formed by forming device for cylinder machine, and the forming device for cylinder machine uses dilute
Releasing water is the wet end plain boiled water that can be recycled.
By the description it is found that saving cost on the basis of guaranteeing product quality using screen cloth plain boiled water.
It further, is 92~95% by the web dryness of the post-job forming slurry of secondary drying in step S10.
Further, the S10 is further comprising the steps of:
First drying: the mass dryness fraction of the page is dried to 80~85% using cylinder group；
Top sizing: sizing operation is carried out to the page after first drying using sizing applicator, sizing concentration is 10%, sizing
Amount is 100kg/ tons of finished products；
Secondary drying: the mass dryness fraction of the page after sizing is dried to 93~95% using baking oven and cylinder group.
The embodiment of the present invention one are as follows: a kind of strong sanitary paper production method includes the following steps；
S1, pulping: it will not float in chemical softwood pulp and true qualities softwood pulp class waste paper investment pulper, and obtain concentration model
Enclose the magma for 8~13%；
S2, desanding: desanding operation is carried out to the magma that step S1 is obtained, obtains the slurry that concentration is 1%；
S3, it discongests: by the slurry degradation at paper pulp；
S4, concentration: screening operation is carried out to the paper pulp and dehydration concentration operation obtains paper pulp of the concentration greater than 4%；
S5, defibrination: it is 4~5% to be slurried that the paper pulp by the concentration greater than 4%, which wears into concentration,；
It is S6, with slurry: to be slurried that middle addition dosage is the 5kg/ tons of wet strength agents being slurried and dosage is 50kg/ tons and is slurried to described
Starch to obtain concentration be 2.5% to be slurried；
S7, molding: the concentration obtains forming slurry of the online concentration no more than 0.2% by forming for 2.5% be slurried；
S8, vacuum dehydration: dewatering operation is carried out to the forming slurry in the environment of vacuum degree is 30~40kPa；
S9, press dewatering: press dewatering operation is carried out to the forming slurry after step S8 dewatering operation；
S10, finished product: the post-job forming slurry of press dewatering successively passes through first drying, top sizing, secondary drying
With batch finished product toilet paper after operation.
The embodiment of the present invention two are as follows: a kind of strong sanitary paper production method includes the following steps；
S1, pulping: it will not float in chemical softwood pulp and true qualities softwood pulp class waste paper investment pulper, and obtain concentration model
Enclose the magma for 8%；The mixing time of the pulper is 30 minutes；The pulper uses 5m3Middle density hydraulic pulper, institute
Pulper is stated using paper machine white water as dilution water；The pulper in pulping whipping process every 6 minutes shut down once with
Carry out rubbish prune job；S2, desanding: desanding operation is carried out to the magma using three-stage desander, bulk rubbish passes through
The collection sand cylinder of the desander bottom is discharged；S3, it discongests: magma is sent into fluffer, it is difficult to which the slurry of size degradation is rolled into a ball by fluffer
It resolves into paper pulp and is flowed out by sieve pore；The slurry group that can not be flowed out by the sieve pore enters vanning and sorts to obtain tailings and concentration
For 1% good slurry, the good slurry is re-fed into the pulp storage tank before screening, and the tailings is re-fed into the pulper；S4,
Concentration: the paper pulp obtained after postsearch screening, which enters in inclined wire thickener, carries out dehydration concentration operation, obtains concentration greater than 4%
Paper pulp；S5, defibrination: it is 4% to be slurried that the paper pulp using DDM double disc refiner by the concentration greater than 4%, which wears into concentration,；
S6, with slurry: described to be slurried into mud pit, to being slurried, middle addition dosage is the 5kg/ tons of wet strength agents being slurried and dosage is
The 50kg/ tons of starch being slurried；During with slurry, it is slurried to be all made of with wet strength agent and at the uniform velocity feeds and stirred while feeding
It mixes, feed time is 3 minutes, and mixing time is 13 minutes；S7, molding: the concentration being slurried after with slurry is 2.5%, it is described at
Slurry is formed by forming device for cylinder machine, and the online concentration being slurried is not more than 0.2%；The beating degree being slurried is 30 ° of SR；It is S8, true
Sky dehydration: dewatering operation is carried out to forming slurry using the vacuum tank that vacuum degree is 30kPa；S9, press dewatering: carrying roller is successively utilized
Pressure is respectively that the dryer roller squeezing dewatering machine of 250N/cm, 300N/cm and 350N/cm carry out dewatering operation, paper to forming slurry
Mass dryness fraction after page squeezing is 45%；S10, finished product: the post-job forming slurry of press dewatering successively passes through first drying, surface
Sizing and batches finished product toilet paper after operation at secondary drying；Pass through the post-job molding of secondary drying in step S10
The web dryness of slurry is 92%.First drying in step S10 specifically: be dried to the mass dryness fraction of the forming slurry using cylinder group
80%；Top sizing in step S10 specifically: sizing operation is carried out to the page after first drying using sizing applicator, is glued dense
Degree is 10%, and resin added is 100kg/ tons of finished products；Secondary drying in step S10 specifically: utilize baking oven and cylinder group by surface
The mass dryness fraction of page after sizing is dried to 93%.
The embodiment of the present invention three and the difference of embodiment two are: will not float chemical softwood pulp and true qualities softwood pulp
Class waste paper is put into pulper, obtains the magma that concentration range is 11%.The mixing time of the pulper is 35 minutes.It is described
Pulper was shut down every 7 minutes once to carry out rubbish prune job in pulping whipping process.It will using DDM double disc refiner
It is 4.5% to be slurried that the paper pulp of the concentration greater than 4%, which wears into concentration,.During with slurry, it is slurried and is all made of at the uniform velocity with wet strength agent
It feeds and is stirred while feeding, feed time is 5 minutes, and mixing time is 15 minutes.The mashing being slurried
Degree is 35 ° of SR.Dewatering operation is carried out to forming slurry using the vacuum tank that vacuum degree is 35kPa.Successively distinguished using carrying roller pressure
Dewatering operation is carried out to forming slurry for the dryer roller squeezing dewatering machine of 260N/cm, 320N/cm and 400N/cm.In step S10
Web dryness by the post-job forming slurry of secondary drying is 94%.First drying in step S10 specifically: utilize baking
The mass dryness fraction of the forming slurry is dried to 83% by cylinder group；Top sizing in step S10 specifically: using sizing applicator to first drying
Page afterwards carries out sizing operation, and sizing concentration is 10%, and resin added is 100kg/ tons of finished products；Secondary drying has in step S10
Body are as follows: the mass dryness fraction of the page after top sizing is dried to 94% using baking oven and cylinder group.
The embodiment of the present invention four and the difference of embodiment three are: will not float chemical softwood pulp and true qualities softwood pulp
Class waste paper is put into pulper, obtains the magma that concentration range is 13%.The mixing time of the pulper is 40 minutes.It is described
Pulper was shut down every 8 minutes once to carry out rubbish prune job in pulping whipping process.It will using DDM double disc refiner
It is 5% to be slurried that the paper pulp of the concentration greater than 4%, which wears into concentration,.During with slurry, be slurried with wet strength agent be all made of at the uniform velocity plus
Expect and be stirred while feeding, feed time is 8 minutes, and mixing time is 18 minutes.The beating degree being slurried
For 40 ° of SR.Dewatering operation is carried out to forming slurry using the vacuum tank that vacuum degree is 40kPa.Successively it is respectively using carrying roller pressure
The dryer roller squeezing dewatering machine of 280N/cm, 350N/cm and 450N/cm carry out dewatering operation to forming slurry.It is passed through in step S10
The web dryness for crossing the post-job forming slurry of secondary drying is 95%.First drying in step S10 specifically: utilize drying cylinder
The mass dryness fraction of the forming slurry is dried to 85% by group；Top sizing in step S10 specifically: using sizing applicator to first drying after
Page carry out sizing operation, sizing concentration is 10%, and resin added is 100kg/ tons of finished products；Secondary drying is specific in step S10
Are as follows: the mass dryness fraction of the page after top sizing is dried to 95% using baking oven and cylinder group.
In conclusion a kind of strong sanitary paper production method provided by the invention, does not float chemical softwood pulp and true qualities
Softwood pulp class waste paper successively passes through pulping, desanding, discongests, is concentrated, defibrination, with slurry, molding, vacuum dehydration and press dewatering
After finished product toilet paper is made, whole flow process is relatively simple, produce and repair it is more convenient, and the quality of toilet paper obtained compared with
It is good.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright description are applied directly or indirectly in relevant technical field, are similarly included in this hair
In bright scope of patent protection.
Claims (10)
1. a kind of strong sanitary paper production method, which is characterized in that include the following steps；
S1, pulping: it will not float in chemical softwood pulp and true qualities softwood pulp class waste paper investment pulper, obtaining concentration range is
8~13% magma；
S2, desanding: desanding operation is carried out to the magma that step S1 is obtained, obtains the slurry that concentration is 1%；
S3, it discongests: by the slurry degradation at paper pulp；
S4, concentration: screening operation is carried out to the paper pulp and dehydration concentration operation obtains paper pulp of the concentration greater than 4%；
S5, defibrination: it is 4~5% to be slurried that the paper pulp by the concentration greater than 4%, which wears into concentration,；
It is S6, with slurry: to be slurried that middle addition dosage is the 5kg/ tons of wet strength agents being slurried and dosage is the 50kg/ tons of shallow lakes being slurried to described
It is 2.5% to be slurried that powder, which obtains concentration,；
S7, molding: the concentration obtains forming slurry of the online concentration no more than 0.2% by forming for 2.5% be slurried；
S8, vacuum dehydration: dewatering operation is carried out to the forming slurry in the environment of vacuum degree is 30~40kPa；
S9, press dewatering: press dewatering operation is carried out to the forming slurry after step S8 dewatering operation；
S10, finished product: the post-job forming slurry of press dewatering successively passes through first drying, top sizing, secondary drying and volume
It is taken as finished product toilet paper after industry.
2. strong sanitary paper production method according to claim 1, which is characterized in that the pulper in step S1
Mixing time be 30~40 minutes.
3. strong sanitary paper production method according to claim 1, which is characterized in that the pulper uses 5m3In it is dense
Hydrabrusher, the pulper is using paper machine white water as dilution water.
4. strong sanitary paper production method according to claim 1, which is characterized in that step S1 further include: described broken
Pulp grinder was shut down every 6~8 minutes once to carry out rubbish prune job in pulping whipping process.
5. strong sanitary paper production method according to claim 1, which is characterized in that step S3 further include: the slurry
Material is carried out discongesting operation by fluffer, is discongested the post-job slurry that can not be discharged by the sieve pore of the fluffer and is rolled into a ball into vanning
The good slurry that sorting obtains tailings and concentration is 1%, the good slurry are re-fed into the pulp storage tank before screening, and the tailings is sent again
Enter in the pulper.
6. strong sanitary paper production method according to claim 1, which is characterized in that step S6 further include: mistake with slurry
Cheng Zhong, is slurried to be all made of with wet strength agent and at the uniform velocity feeds and be stirred while feeding, and feed time is 3~8 minutes, stirs
Mixing the time is 13~18 minutes.
7. strong sanitary paper production method according to claim 1, which is characterized in that be slurried described in step S7
Beating degree is 30~40 ° of SR.
8. strong sanitary paper production method according to claim 1, which is characterized in that be slurried described in step S7 logical
Forming device for cylinder machine molding is crossed, the dilution water that the forming device for cylinder machine uses is the wet end plain boiled water that can be recycled.
9. strong sanitary paper production method according to claim 1, which is characterized in that pass through secondary baking in step S10
The web dryness for doing the post-job forming slurry is 92~95%.
10. strong sanitary paper production method according to claim 1, which is characterized in that
First drying in step S10 specifically:
The mass dryness fraction of the forming slurry is dried to 80~85% using cylinder group；
Top sizing in step S10 specifically:
Sizing operation is carried out to the page after first drying using sizing applicator, sizing concentration is 10%, and resin added is 100kg/ tons
Finished product；
Secondary drying in step S10 specifically:
The mass dryness fraction of the page after top sizing is dried to 93~95% using baking oven and cylinder group.
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| CN201811187781.4A CN109338806A (en) | 2018-10-12 | 2018-10-12 | A kind of strong sanitary paper production method |
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| CN2625431Y (en) * | 2003-05-20 | 2004-07-14 | 侯志胜 | Paper sheet dehydration forming device |
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| CN107700273A (en) * | 2016-08-09 | 2018-02-16 | 浙江鑫丰特种纸业股份有限公司 | It is a kind of to produce the coating line device and its manufacturing technique method for educating fruit outer bag paper |
| CN108252137A (en) * | 2017-12-08 | 2018-07-06 | 东莞建晖纸业有限公司 | The preparation process of high resistance to broken environmentally friendly kraft paperboard |
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2018
- 2018-10-12 CN CN201811187781.4A patent/CN109338806A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625431Y (en) * | 2003-05-20 | 2004-07-14 | 侯志胜 | Paper sheet dehydration forming device |
| CN102154923A (en) * | 2010-12-22 | 2011-08-17 | 山东华泰纸业股份有限公司 | Manufacture technology of sub-quality paper |
| CN105568746A (en) * | 2015-12-16 | 2016-05-11 | 重庆龙璟纸业有限公司 | Body paper of wettable tissues and production process of body paper |
| CN107313299A (en) * | 2016-04-27 | 2017-11-03 | 上海东冠纸业有限公司 | A kind of preparation method of amenities high-air-permeability water suction lining paper |
| CN107700273A (en) * | 2016-08-09 | 2018-02-16 | 浙江鑫丰特种纸业股份有限公司 | It is a kind of to produce the coating line device and its manufacturing technique method for educating fruit outer bag paper |
| CN106283821A (en) * | 2016-08-26 | 2017-01-04 | 灵璧县楚汉风纸业有限公司 | A kind of toilet paper production technology |
| CN108252137A (en) * | 2017-12-08 | 2018-07-06 | 东莞建晖纸业有限公司 | The preparation process of high resistance to broken environmentally friendly kraft paperboard |
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Application publication date: 20190215 |