CN109537340A - A kind of toilet paper production method - Google Patents
A kind of toilet paper production method Download PDFInfo
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- CN109537340A CN109537340A CN201811187793.7A CN201811187793A CN109537340A CN 109537340 A CN109537340 A CN 109537340A CN 201811187793 A CN201811187793 A CN 201811187793A CN 109537340 A CN109537340 A CN 109537340A
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- Prior art keywords
- concentration
- slurry
- slurried
- toilet paper
- production method
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Classifications
-
- 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
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
Abstract
The present invention relates to pulp technology for making paper more particularly to a kind of toilet paper production methods, comprising the following steps: S1, pulping: will be floated in chemical pulp class waste paper investment pulper entirely, 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, screening: by the slurry by obtaining the good slurry that paper pulp, tailings and concentration are 1% after screening；S4, concentration: the paper pulp obtained after screening carries out dehydration concentration operation, obtains the paper pulp that concentration is 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,；S6, with slurry: it is that obtain concentration be 2.5% to be slurried to the 5kg/ tons of wet strength agents being slurried that middle addition dosage, which is slurried, in Xiang Suoshu；S7, molding: the concentration obtains the forming slurry that online concentration is not more than 0.2% by operations for forming for 2.5% be slurried.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 toilet 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 toilet paper production method.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of toilet paper that intensity is high, high-quality, environmentally protective production
Method.
In order to solve the technical problem, the technical solution adopted by the present invention are as follows: a kind of toilet paper production method, including with
Lower step:
S1, pulping: it will float entirely in chemical 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, screening: by the slurry by obtaining the good slurry that paper pulp, tailings and concentration are 1% after screening；
S4, concentration: the paper pulp obtained after screening carries out dehydration concentration operation, obtains the paper pulp that concentration is 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: Xiang Suoshu be slurried middle addition dosage be the 5kg/ tons of wet strength agents being slurried obtain concentration be 2.5% at
Slurry；
S7, molding: the concentration be 2.5% be slurried by operations for forming obtain online concentration no more than 0.2% at
Type slurry；
S8, vacuum dehydration: dewatering operation is carried out to 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 dewatering operation；
S10, drying are batched: the post-job forming slurry of press dewatering is successively obtained after drying operation, batching operation
Finished product toilet paper.
The beneficial effects of the present invention are: a kind of toilet paper production method is provided, the full chemical pulp class waste paper that floats successively passes through
Operation is batched in pulping, desanding, screening, concentration, defibrination, with slurry, molding, vacuum dehydration, press dewatering and drying, and finished product is made
Toilet paper, whole flow process is relatively simple, produce and repairs more convenient, and the quality of toilet paper obtained is preferable.
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: drift chemical pulp class waste paper successively passes through pulping, desanding, screening, concentration, mill entirely
Operation is batched in slurry, with slurry, molding, vacuum dehydration, press dewatering and drying, and finished product toilet paper is made.
The present invention provides a kind of toilet paper production method, comprising the following steps:
S1, pulping: it will float entirely in chemical 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, screening: by the slurry by obtaining the good slurry that paper pulp, tailings and concentration are 1% after screening；
S4, concentration: the paper pulp obtained after screening carries out dehydration concentration operation, obtains the paper pulp that concentration is 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: Xiang Suoshu be slurried middle addition dosage be the 5kg/ tons of wet strength agents being slurried obtain concentration be 2.5% at
Slurry；
S7, molding: the concentration be 2.5% be slurried by operations for forming obtain online concentration no more than 0.2% at
Type slurry；
S8, vacuum dehydration: dewatering operation is carried out to 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 dewatering operation；
S10, drying are batched: the post-job forming slurry of press dewatering is successively obtained after drying operation, batching operation
Finished product toilet paper.
From the description it is found that the beneficial effects of the present invention are: waste paper is crushed and cleaned by pulper first, and
The concentration and quality that magma is improved by desanding operation are starched pulp separation at the higher good slurry of concentration, coarse paper by screening
And tailings, good slurry return to the step before screening, coarse paper slurry obtains common paper pulp, then pass through mill by dehydration concentration operation
Slurry promotes the concentration of paper pulp further, matches certain wet strength agent into paper pulp then be slurried operation, surfs the Internet dense
Degree is no more than 0.2%, to guarantee that paper pulp intensity and toughness after the processing of subsequent dewatering operation are preferable, finally makees by drying
Finished product toilet paper is made after batching operation in industry.
Further, step S1 further include: the mixing time of the pulper 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 S2 further include: desanding operation is carried out to the magma that step S1 is obtained using desander, it is described to remove
Silt is concentrated during desanding every 10~15 minutes collection sand cylinders using bottom and is discharged by sand device.
By the description it is found that the purpose of desanding operation is to guarantee the pliability and skin-friendly of output toilet paper.
Further, step S3 further include: the tailings is re-fed into the pulper via vanning.
By the description it is found that both saving raw material in this way, the quantum of output of toilet paper is also improved.
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
Expect the mode being stirred on one side, wherein the time to feed is 3~8 minutes, the time of stirring is 13~18 minutes.
Further, the beating degree being slurried in the 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 forms to obtain forming slurry, the cylinder forming by forming device for cylinder machine
The dilution water that device uses 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 for drying the post-job forming slurry in step S10.
A kind of the embodiment of the present invention one are as follows: toilet paper production method, comprising the following steps:
S1, pulping: it will float entirely in chemical 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, screening: by the slurry by obtaining the good slurry that paper pulp, tailings and concentration are 1% after screening；
S4, concentration: the paper pulp obtained after screening carries out dehydration concentration operation, obtains the paper pulp that concentration is 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: Xiang Suoshu be slurried middle addition dosage be the 5kg/ tons of wet strength agents being slurried obtain concentration be 2.5% at
Slurry；
S7, molding: the concentration be 2.5% be slurried by operations for forming obtain online concentration no more than 0.2% at
Type slurry；
S8, vacuum dehydration: dewatering operation is carried out to 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 dewatering operation；
S10, drying are batched: the post-job forming slurry of press dewatering is successively obtained after drying operation, batching operation
Finished product toilet paper.
A kind of the embodiment of the present invention two are as follows: toilet paper production method, comprising the following steps:
S1, pulping: it will float entirely in chemical pulp class waste paper investment pulper, and obtain the magma that concentration range is 8%；It is described broken
The mixing time of pulp grinder is 30 minutes.The pulper uses 5m3Middle density hydraulic pulper, the pulper use paper machine white water
As dilution water.The pulper was shut down every 6 minutes once to carry out rubbish prune job in pulping whipping process；S2,
Desanding: desanding operation is carried out to the magma that step S1 is obtained, obtains the slurry that concentration is 1%；The desander is in desanding process
In silt concentrated every 10 minutes collection sand cylinders using bottom discharge；S3, screening: the slurry being sent into pulp storage tank passes through pressure
Tailings and concentration are obtained after sieve screening as 1% good slurry, the good slurry is re-fed into the pulp storage tank before screening；The tailings warp
It is re-fed into the pulper by vanning；S4, concentration: the paper pulp obtained after postsearch screening enter in inclined wire thickener into
Row dehydration concentration operation, obtains the paper pulp that concentration is greater than 4%；S5, defibrination: the concentration is greater than using DDM double disc refiner
It is 4% to be slurried that 4% paper pulp, which wears into concentration,；It is S6, with slurry: it is described to be slurried into mud pit, be to middle addition dosage is slurried
The 5kg/ tons of wet strength agents being slurried；During with slurry, it is slurried to be all made of with wet strength agent and at the uniform velocity feeds and carried out while feeding
Stirring, feed time are 3 minutes, and mixing time is 13 minutes；S7, molding: the concentration being slurried after with slurry is 2.5%, step
Described be slurried in S7 forms to obtain forming slurry by forming device for cylinder machine, and the online concentration being slurried is not more than 0.2%；It is described to be slurried
Beating degree be 30SR.The dilution water that the forming device for cylinder machine uses is the wet end plain boiled water that can be recycled；S8, vacuum dehydration:
Dewatering operation is carried out to forming slurry using the vacuum tank that vacuum degree is 30kPa；S9, press dewatering: being 350N/ using carrying roller pressure
The dryer roller squeezing dewatering machine of cm carries out dewatering operation to forming slurry；S10, drying batch: by press dewatering it is post-job at
Type starches the successively finished product toilet paper after drying operation, batching operation.By the paper for drying the post-job forming slurry
Page mass dryness fraction is 92%.
The embodiment of the present invention three and the difference of embodiment two are: it will float entirely in chemical pulp class waste paper investment pulper,
Obtain the magma that concentration range is 11%.The mixing time of the pulper is 35 minutes.The pulper is stirred in pulping
It was shut down every 7 minutes once to carry out rubbish prune job in journey.The concentration is greater than 4% using DDM double disc refiner
It is 4.5% to be slurried that paper pulp, which wears into concentration,.It is slurried to be all made of with wet strength agent and at the uniform velocity feeds and be stirred while feeding,
Feed time is 5 minutes, and mixing time is 15 minutes.The beating degree being slurried is 35 ° of SR.It is 35kPa's using vacuum degree
Vacuum tank carries out dewatering operation to forming slurry.Using the dryer roller squeezing dewatering machine that carrying roller pressure is 400N/cm to forming slurry
Carry out dewatering operation.Web dryness by drying the post-job forming slurry is 93%.The desander is in desanding process
In silt concentrated every 13 minutes collection sand cylinders using bottom discharge.
The embodiment of the present invention four and the difference of embodiment three are: it will float entirely in chemical pulp class waste paper investment pulper,
Obtain the magma that concentration range is 13%.The mixing time of the pulper is 40 minutes.The pulper is stirred in pulping
It was shut down every 8 minutes once to carry out rubbish prune job in journey.The concentration is greater than 4% using DDM double disc refiner
It is 5% to be slurried that paper pulp, which wears into concentration,.It is slurried to be all made of with wet strength agent and at the uniform velocity feeds and be stirred while feeding, add
Expect that the time is 8 minutes, mixing time is 18 minutes.The beating degree being slurried is 40 ° of SR.It is the true of 40kPa using vacuum degree
Empty van carries out dewatering operation to forming slurry.Using carrying roller pressure be 450N/cm dryer roller squeezing dewatering machine to forming slurry into
Row dewatering operation.Web dryness by drying the post-job forming slurry is 95%.The desander is during desanding
Silt is concentrated every 15 minutes collection sand cylinders using bottom and is discharged.
In conclusion provided by the invention provide a kind of toilet paper production method, the full chemical pulp class waste paper that floats successively passes through
Operation is batched in pulping, desanding, screening, concentration, defibrination, with slurry, molding, vacuum dehydration, press dewatering and drying, and finished product is made
Toilet paper, whole flow process is relatively simple, produce and repairs more convenient, and the quality of toilet paper obtained is preferable.
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 toilet paper production method, which comprises the following steps:
S1, pulping: it will float entirely in chemical 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, screening: by the slurry by obtaining the good slurry that paper pulp, tailings and concentration are 1% after screening；
S4, concentration: the paper pulp obtained after screening carries out dehydration concentration operation, obtains the paper pulp that concentration is 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,；
S6, with slurry: it is that obtain concentration be 2.5% to be slurried to the 5kg/ tons of wet strength agents being slurried that middle addition dosage, which is slurried, in Xiang Suoshu；
S7, molding: the concentration obtains the forming slurry that online concentration is not more than 0.2% by operations for forming for 2.5% be slurried；
S8, vacuum dehydration: dewatering operation is carried out to 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 dewatering operation；
S10, drying batch: by the post-job forming slurry of press dewatering successively by drying operation, batch operation after finished product
Toilet paper.
2. toilet paper production method according to claim 1, which is characterized in that step S1 further include: the pulper
Mixing time is 30~40 minutes.
3. toilet paper production method according to claim 1, which is characterized in that the pulper uses 5m3Middle concentrated water power is broken
Pulp grinder, the pulper is using paper machine white water as dilution water.
4. toilet paper production method according to claim 1, which is characterized in that step S1 further include: the pulper exists
It was shut down every 6~8 minutes once to carry out rubbish prune job in pulping whipping process.
5. toilet paper production method according to claim 1, which is characterized in that step S2 further include: utilize desander pair
The magma that step S1 is obtained carries out desanding operation, and the desander is during desanding every 10~15 minutes collection using bottom
Silt is concentrated and is discharged by sand cylinder.
6. toilet paper production method according to claim 1, which is characterized in that step S3 further include: the tailings via
Vanning is re-fed into the pulper.
7. toilet paper production method according to claim 1, which is characterized in that step S6 further include: during with slurry, at
Slurry is all made of the mode at the uniform velocity feeding and being stirred while feeding with wet strength agent, wherein the time to feed is 3~8 points
Clock, the time of stirring are 13~18 minutes.
8. toilet paper production method according to claim 1, which is characterized in that the beating degree being slurried in the S7
For 30~40 ° of SR.
9. toilet paper production method according to claim 1, which is characterized in that described be slurried in step S7 passes through cylinder
Former forms to obtain forming slurry, and the dilution water that the forming device for cylinder machine uses is the wet end plain boiled water that can be recycled.
10. toilet paper production method according to claim 1, which is characterized in that post-job by drying in step S10
The web dryness of the forming slurry is 92~95%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187793.7A CN109537340A (en) | 2018-10-12 | 2018-10-12 | A kind of toilet paper production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187793.7A CN109537340A (en) | 2018-10-12 | 2018-10-12 | A kind of toilet paper production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109537340A true CN109537340A (en) | 2019-03-29 |
Family
ID=65843745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811187793.7A Pending CN109537340A (en) | 2018-10-12 | 2018-10-12 | A kind of toilet paper production method |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075516A (en) * | 1992-02-20 | 1993-08-25 | 王振春 | Double-cylinder sieve enclosed shaping apparatus for paper |
| CN2625431Y (en) * | 2003-05-20 | 2004-07-14 | 侯志胜 | Paper sheet dehydration forming device |
| CN1525004A (en) * | 2003-09-17 | 2004-09-01 | 浙江蓝星科技有限公司 | Processing method for regenerative semi-chemical corrugated paper |
| CN2714603Y (en) * | 2005-01-06 | 2005-08-03 | 董海军 | Ultra-forming high speed tissue paper machine |
| CN1683713A (en) * | 2005-03-11 | 2005-10-19 | 焦明珠 | Wet health crepe toilet paper |
| KR20120033488A (en) * | 2010-09-30 | 2012-04-09 | 유한회사 팔복제지 | The method of manufacturing of the color han-ji which has different colors in front and back part sheets |
| RU2447218C2 (en) * | 2010-06-16 | 2012-04-10 | Анатолий Кузьмич Соломаха | Compact device for production of sanitary-hygiene types of paper |
| CN104727182A (en) * | 2015-03-24 | 2015-06-24 | 河南省矩圆信实业有限公司 | High-speed strong dehydration cylinder paper making machine |
| 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 |
| 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 |
-
2018
- 2018-10-12 CN CN201811187793.7A patent/CN109537340A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075516A (en) * | 1992-02-20 | 1993-08-25 | 王振春 | Double-cylinder sieve enclosed shaping apparatus for paper |
| CN2625431Y (en) * | 2003-05-20 | 2004-07-14 | 侯志胜 | Paper sheet dehydration forming device |
| CN1525004A (en) * | 2003-09-17 | 2004-09-01 | 浙江蓝星科技有限公司 | Processing method for regenerative semi-chemical corrugated paper |
| CN2714603Y (en) * | 2005-01-06 | 2005-08-03 | 董海军 | Ultra-forming high speed tissue paper machine |
| CN1683713A (en) * | 2005-03-11 | 2005-10-19 | 焦明珠 | Wet health crepe toilet paper |
| RU2447218C2 (en) * | 2010-06-16 | 2012-04-10 | Анатолий Кузьмич Соломаха | Compact device for production of sanitary-hygiene types of paper |
| KR20120033488A (en) * | 2010-09-30 | 2012-04-09 | 유한회사 팔복제지 | The method of manufacturing of the color han-ji which has different colors in front and back part sheets |
| CN104727182A (en) * | 2015-03-24 | 2015-06-24 | 河南省矩圆信实业有限公司 | High-speed strong dehydration cylinder paper making machine |
| 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 |
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Application publication date: 20190329 |