CN107414989A - A kind of method that displacement cooking produces high yield pulp1 true qualities bamboo pulp - Google Patents
A kind of method that displacement cooking produces high yield pulp1 true qualities bamboo pulp Download PDFInfo
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- CN107414989A CN107414989A CN201710636336.0A CN201710636336A CN107414989A CN 107414989 A CN107414989 A CN 107414989A CN 201710636336 A CN201710636336 A CN 201710636336A CN 107414989 A CN107414989 A CN 107414989A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
- B27J1/00—Mechanical working of cane or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/16—Inorganic impregnating agents
- B27K3/32—Mixtures of different inorganic impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/001—Heating
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
-
- 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
- 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
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of method that displacement cooking produces high yield pulp1 true qualities bamboo pulp, and after improvement, this method includes lower step：Stock, steam pre-treatment, boiling, shove, high consistency refining, low dense defibrination, washing and papermaking.According to above-mentioned preparation method, gained pulp yield is 70 90%, Kappa number is more than 80, the 24%ISO of whiteness 14, b values 25 40, the method of the invention uses displacement cooking technology, by high compression ratio extruding and high consistency refining, preparation process possess energy-conserving and environment-protective, without outer emission, production efficiency is high the characteristics of.
Description
Technical field
The invention belongs to pulp and paper technology field, and in particular to a kind of displacement cooking produces the side of high yield pulp1 true qualities bamboo pulp
Method.
Background technology
High yield pulp1 bamboo pulp refer mainly to chemical mechanical pulping acquisition do not float bamboo pulp, yield is typically more than 60%.At present both at home and abroad
The research of high yield pulp1 bamboo pulp is mainly used in proportionaling collecting newsprint, writing paper, sheet lining or the coating paper for making sandwich layer, and it is in whiteness
All it there are certain requirements to meet end product demand.Therefore, by high yield pulp1 bamboo pulp all to float based on whitening machine bamboo pulp.
In recent years, as people constantly deepen to the understanding of bamboo, the exploitation dynamics of bamboo pulp continues to increase, bamboo true qualities concept
Initially enter the sight of people.Research to true qualities bamboo pulp is even more very active.
Patent 201410355005.6 discloses a kind of high yield pulp1 true qualities bamboo pulp preparation method, uses potassium hydroxide as boiling
Liquid, maximum temperature reach 120 DEG C.But this method also can only obtain 60% or so yield, plus having used more potassium hydroxide,
Cause manufacturing cost can not meet existing high yield pulp market demands.
Patent 201610087921.5 discloses a kind of true qualities bamboo pulp preparation method, using kraft cooking, the highest temperature
130 DEG C of degree, for this method yield only 55% or so, and the thick slag of production process is more, gained slurry does not have high yield pulp1 slurry still yet
Feature.
Patent 200710034386 discloses a kind of production technology of thermomechanical bamboo pulp, and this method employs repeatedly softening skill
Art, the substantially unused industrial chemicals of whole process, yield is high, and environmental pollution is light, but its large-scale industrial production difficulty is big, gained
Bamboo pulp is stiff, and slurry tone is bad.Period, also have and adopt Ammonium Sulfite Method and sulphite process produces high yield pulp1 bamboo pulp, Ke Yida
65% and above yield, but this technique has a sulfur dioxide generation, ambient pollution burden weight, and waste water treatment is difficult.Using timber machine
Slurry production line prepares high yield pulp1 true qualities bamboo pulp and also had been reported that, but its waste discharge COD is up to more than 10000mg/l, existing chemistry
Slurry line stage casing water treatment system can not be handled, it is necessary to which special newly-built water treatment system, causes investment to increase, and this method defibrination is electric
Consumption is very big, and unit installed power reaches 3000KW or so, requires higher to plant area's electrical arrangement.
It is not yet present at present in digester and utilizes the report and document of displacement cooking technology production high yield pulp1 true qualities bamboo pulp.
Therefore, in all multi-methods, there is not a kind of quality method system that is good, environmentally friendly, economic, being adapted to large-scale production
Take high yield pulp1 true qualities bamboo pulp.
The content of the invention
It is an object of the invention to provide a kind of energy-conserving and environment-protective, economical and efficient, can large-scale production displacement cooking system
The method for taking high yield pulp1 true qualities bamboo pulp.
The present invention is achieved in that a kind of method that displacement cooking produces high yield pulp1 true qualities bamboo pulp that provides, and its feature exists
In：This method includes lower step：Stock, steam pre-treatment, boiling, shove, high consistency refining, low dense defibrination, washing and papermaking, its
It is characterised by：
（1）Stock：Bamboo wood is cut into long 20-50mm, wide 10-20 mm rectangle bamboo chip, it is standby after washing；
（2）Steam pre-treatment：After bamboo chip is using steam dress pot, low-pressure steam is passed through, temperature above and below in pot is reached 90-160
DEG C, and it is incubated 5-180 minutes at this temperature；
（3）Boiling：After completing steam pre-treatment, addition cooking liquor enters with displacement cooking technology to bamboo chip in vertical digester
Row boiling, the cooking liquor contain among sodium hydroxide, potassium hydroxide, calcium hydroxide, vulcanized sodium, sodium carbonate any one or two
Kind and two or more compositions；
（4）Extruding：Bamboo chip is sent into screw extruder through spiral and carries out extruding tear after the completion of boiling, obtains crude product high yield pulp1 true qualities
Slurry；
（5）High consistency refining：Crude product high yield pulp1 natural color pulp thickens 20-40% concentration through breaing up after extruding, and then spiral is sent into highly concentrated
Fiberizer is again into slurry, the natural color pulp refined；
（6）Low dense defibrination：Through highly concentrated mill disposed slurry, diluted concentration carries out defibrination to 4-6% again；
（7）Washing：Using multistage counter current pulp washing mode, a double roller squeezing wash engine washs with more vacuum pulp washing machines, washes away
Slurry residual alkali, cleaning solution send evaporation recovery alkali and partial lignin；
（8）Manufacture paper with pulp：Slurry after cleaning send pulpboard workshop to be copied into slurry bag, finally carries out metering packing.
The method that high yield pulp1 true qualities bamboo pulp is produced according to a kind of displacement cooking of the present invention, it is characterised in that described
Step（2）In displacement cooking technology, the addition of cooking liquor is 3-20%, highest holding temperature 90- to over dry bamboo chip weight
165 DEG C, soaking time 10-300 minutes.
The method that high yield pulp1 true qualities bamboo pulp is produced according to a kind of displacement cooking of the present invention, it is characterised in that described
Step（8）In finished pulp, yield 70-90%, Kappa number 80 and more than, whiteness 14-24%ISO, b value 25-40.
The present invention the advantage is that relative to current high yield pulp1 bamboo pulp technology of preparing：
1st, using international advanced DDS displacement cookings mode, energy-saving effect is obvious, and cooking homogeneities are good.
2nd, good with existing chemical recovery system matching, caused black liquor processing maturity is high, can be recycled completely,
Beneficial to large-scale production.
3rd, it is preferable into slurry uniformity most afterwards through highly concentrated low concentration grinding process using being extruded again after chemical tendering bamboo chip, energy consumption
Save.
4th, being improved using displacement cooking, production efficiency, black liquor vaporizing amount energy effective guarantee, the operation of alkali stove can be protected,
Without newly-built water treatment system, investment is saved.
5th, yield is high, and substantially more than 75%, production cost is low.
Embodiment
The present invention is further described in detail now：
The present invention provides a kind of method that displacement cooking produces high yield pulp1 true qualities bamboo pulp, implements in such a way but is not limited to
Cited embodiment.
Embodiment 1：
（1）Stock：Bamboo wood is cut into long 20-50mm, wide 10-20 mm rectangle bamboo chip, it is standby after washing；
（2）Steam pre-treatment：After bamboo chip is using steam dress pot, low-pressure steam is passed through, temperature above and below in pot is reached 120 DEG C,
And it is incubated 90 minutes at this temperature.
（3）Boiling：After completing steam pre-treatment, cooking liquor is added in vertical digester with displacement cooking technology to bamboo
Piece carries out boiling, using sodium hydroxide, vulcanized sodium as boiling cooking liquor；Based on sodium oxide molybdena, the addition of cooking liquor is to over dry
Bamboo chip weight is 5%, and vulcanized sodium accounts for 20% in the ratio of alkali, 105 DEG C of highest holding temperature, soaking time 60 minutes.
（4）Extruding：Bamboo chip is sent into screw extruder through spiral and carries out extruding tear after the completion of boiling, obtains crude product high yield pulp1
Natural color pulp.
（5）High consistency refining：Crude product high yield pulp1 natural color pulp is thickened to 30% concentration through breaing up after extruding, and then spiral feeding is high
Dense fiberizer is again into slurry, the natural color pulp refined.
（6）Low dense defibrination：Through highly concentrated mill disposed slurry, diluted concentration carries out defibrination to 4% again.
（7）Washing：Using multistage counter current pulp washing mode, a double roller squeezing wash engine washs with more vacuum pulp washing machines,
Slurry residual alkali is washed away, cleaning solution send evaporation recovery alkali and partial lignin.
（8）Manufacture paper with pulp：Slurry after cleaning send pulpboard workshop to be copied into slurry bag, finally carries out metering packing.Finished product pulp yield is
81%, Kappa number 150, whiteness 15%ISO, b value 36.
Embodiment 2：
（1）Stock：Bamboo wood is cut into long 20-50mm, wide 10-20 mm rectangle bamboo chip, it is standby after washing；
（2）Steam pre-treatment：After bamboo chip is using steam dress pot, low-pressure steam is passed through, temperature above and below in pot is reached 140 DEG C,
And it is incubated 30 minutes at this temperature.
（3）Boiling：After completing steam pre-treatment, cooking liquor is added in vertical digester with displacement cooking technology to bamboo
Piece carries out boiling, using sodium carbonate as cooking liquor；The addition of sodium carbonate is 6% to over dry bamboo chip weight, highest holding temperature
160 DEG C, soaking time 10 minutes.
（4）Extruding：Bamboo chip is sent into screw extruder through spiral and carries out extruding tear after the completion of boiling, obtains crude product high yield pulp1
Natural color pulp.
（5）High consistency refining：Crude product high yield pulp1 natural color pulp is thickened to 28% concentration through breaing up after extruding, and then spiral feeding is high
Dense fiberizer is again into slurry, the natural color pulp refined.
（6）Low dense defibrination：Through highly concentrated mill disposed slurry, diluted concentration carries out defibrination to 5% again.
（7）Washing：Using multistage counter current pulp washing mode, a double roller squeezing wash engine washs with more vacuum pulp washing machines,
Slurry residual alkali is washed away, cleaning solution send evaporation recovery alkali and partial lignin.
（8）Manufacture paper with pulp：Slurry after cleaning send pulpboard workshop to be copied into slurry bag, finally carries out metering packing.Finished product pulp yield is
88%, Kappa number 180, whiteness 14%ISO, b value 38.
Embodiment 3：
（1）Stock：Bamboo wood is cut into long 20-50mm, wide 10-20 mm rectangle bamboo chip, it is standby after washing；
（2）Steam pre-treatment：After bamboo chip is using steam dress pot, low-pressure steam is passed through, temperature above and below in pot is reached 130 DEG C,
And it is incubated 60 minutes at this temperature.
（3）Boiling：After completing steam pre-treatment, cooking liquor is added in vertical digester with displacement cooking technology to bamboo
Piece carries out boiling, using sodium carbonate as cooking liquor；The addition of sodium carbonate is 4% to over dry bamboo chip weight, highest holding temperature
155 DEG C, soaking time 20 minutes.
（4）Extruding：Bamboo chip is sent into screw extruder through spiral and carries out extruding tear after the completion of boiling, obtains crude product high yield pulp1
Natural color pulp.
（5）High consistency refining：Crude product high yield pulp1 natural color pulp is thickened to 25% concentration through breaing up after extruding, and then spiral feeding is high
Dense fiberizer is again into slurry, the natural color pulp refined.
（6）Low dense defibrination：Through highly concentrated mill disposed slurry, diluted concentration carries out defibrination to 6% again.
（7）Washing：Using multistage counter current pulp washing mode, a double roller squeezing wash engine washs with more vacuum pulp washing machines,
Slurry residual alkali is washed away, cleaning solution send evaporation recovery alkali and partial lignin.
（8）Manufacture paper with pulp：Slurry after cleaning send pulpboard workshop to be copied into slurry bag, finally carries out metering packing.Finished product pulp yield is
86%, Kappa number 140, whiteness 14.5%ISO, b value 30.
Embodiment 4：
（1）Stock：Bamboo wood is cut into long 20-50mm, wide 10-20 mm rectangle bamboo chip, it is standby after washing；
（2）Steam pre-treatment：After bamboo chip is using steam dress pot, low-pressure steam is passed through, temperature above and below in pot is reached 150 DEG C,
And it is incubated 30 minutes at this temperature.
（3）Boiling：After completing steam pre-treatment, cooking liquor is added in vertical digester with displacement cooking technology to bamboo
Piece carries out boiling, using calcium hydroxide as cooking liquor；The addition of calcium hydroxide is 10% to over dry bamboo chip weight, and highest is protected
160 DEG C of temperature, soaking time 60 minutes.
（4）Extruding：Bamboo chip is sent into screw extruder through spiral and carries out extruding tear after the completion of boiling, obtains crude product high yield pulp1
Natural color pulp.
（5）High consistency refining：Crude product high yield pulp1 natural color pulp is thickened to 25% concentration through breaing up after extruding, and then spiral feeding is high
Dense fiberizer is again into slurry, the natural color pulp refined.
（6）Low dense defibrination：Through highly concentrated mill disposed slurry, diluted concentration carries out defibrination to 6% again.
（7）Washing：Using multistage counter current pulp washing mode, a double roller squeezing wash engine washs with more vacuum pulp washing machines,
Slurry residual alkali is washed away, cleaning solution send evaporation recovery alkali and partial lignin.
（8）Manufacture paper with pulp：Slurry after cleaning send pulpboard workshop to be copied into slurry bag, finally carries out metering packing.Finished product pulp yield is
83%, Kappa number 170, whiteness 16%ISO, b value 33.
Embodiment 5：
（1）Stock：Bamboo wood is cut into long 20-50mm, wide 10-20 mm rectangle bamboo chip, it is standby after washing；
（2）Steam pre-treatment：After bamboo chip is using steam dress pot, low-pressure steam is passed through, temperature above and below in pot is reached 130 DEG C,
And it is incubated 30 minutes at this temperature.
（3）Boiling：After completing steam pre-treatment, cooking liquor is added in vertical digester with displacement cooking technology to bamboo
Piece carries out boiling, using potassium hydroxide as cooking liquor；The addition of potassium hydroxide is 7% to over dry bamboo chip weight, highest insulation
110 DEG C of temperature, soaking time 60 minutes.
（4）Extruding：Bamboo chip is sent into screw extruder through spiral and carries out extruding tear after the completion of boiling, obtains crude product high yield pulp1
Natural color pulp.
（5）High consistency refining：Crude product high yield pulp1 natural color pulp is thickened to 30% concentration through breaing up after extruding, and then spiral feeding is high
Dense fiberizer is again into slurry, the natural color pulp refined.
（6）Low dense defibrination：Through highly concentrated mill disposed slurry, diluted concentration carries out defibrination to 4% again.
（7）Washing：Using multistage counter current pulp washing mode, a double roller squeezing wash engine washs with more vacuum pulp washing machines,
Slurry residual alkali is washed away, cleaning solution send evaporation recovery alkali and partial lignin.
（8）Manufacture paper with pulp：Slurry after cleaning send pulpboard workshop to be copied into slurry bag, finally carries out metering packing.Finished product pulp yield is
85%, Kappa number 160, whiteness 17%ISO, b value 36.
Claims (3)
1. a kind of method that displacement cooking produces high yield pulp1 true qualities bamboo pulp, it is characterised in that：This method includes lower step：Stock,
Steam pre-treatment, boiling, shove, high consistency refining, low dense defibrination, washing and papermaking, it is characterised in that：
（1）Stock：Bamboo wood is cut into long 20-50mm, wide 10-20 mm rectangle bamboo chip, it is standby after washing；
（2）Steam pre-treatment：After bamboo chip is using steam dress pot, low-pressure steam is passed through, temperature above and below in pot is reached 90-160
DEG C, and it is incubated 5-180 minutes at this temperature；
（3）Boiling：After completing steam pre-treatment, addition cooking liquor enters with displacement cooking technology to bamboo chip in vertical digester
Row boiling, the cooking liquor contain among sodium hydroxide, potassium hydroxide, calcium hydroxide, vulcanized sodium, sodium carbonate any one or two
Kind and two or more compositions；
（4）Extruding：Bamboo chip is sent into screw extruder through spiral and carries out extruding tear after the completion of boiling, obtains crude product high yield pulp1 true qualities
Slurry；
（5）High consistency refining：Crude product high yield pulp1 natural color pulp thickens 20-40% concentration through breaing up after extruding, is then sent into through spiral high
Dense fiberizer is again into slurry, the natural color pulp refined；
（6）Low dense defibrination：Through highly concentrated mill disposed slurry, diluted concentration carries out defibrination to 4-6% again；
（7）Washing：Using multistage counter current pulp washing mode, a double roller squeezing wash engine washs with more vacuum pulp washing machines, washes away
Slurry residual alkali, cleaning solution send evaporation recovery alkali and partial lignin；
（8）Manufacture paper with pulp：Slurry after cleaning send pulpboard workshop to be copied into slurry bag, finally carries out metering packing.
2. the method that a kind of displacement cooking according to claim 1 produces high yield pulp1 true qualities bamboo pulp, it is characterised in that described
Step（2）In displacement cooking technology, the addition of cooking liquor is 3-20%, highest holding temperature 90- to over dry bamboo chip weight
165 DEG C, soaking time 10-300 minutes.
3. the method that a kind of displacement cooking according to claim 1 produces high yield pulp1 true qualities bamboo pulp, it is characterised in that described
Step（8）In finished pulp, yield 70-90%, Kappa number 80 and more than, whiteness 14-24%ISO, b value 25-40.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166306A (en) * | 2017-12-26 | 2018-06-15 | 四川永丰纸业股份有限公司 | A kind of full bamboo pulp NK natural kraft and its production method |
| CN108589374A (en) * | 2018-05-22 | 2018-09-28 | 四川省犍为凤生纸业有限责任公司 | A kind of paper pulp manufacturing technique |
| CN111021121A (en) * | 2019-11-06 | 2020-04-17 | 福建省青山纸业股份有限公司 | Production method for directly converting natural-color chemical KP pulp on dissolving pulp DP production line |
| CN112431050A (en) * | 2020-11-23 | 2021-03-02 | 山东太阳纸业股份有限公司 | Method for producing semi-chemical pulp in large scale by utilizing forest waste |
| CN113481743A (en) * | 2021-08-06 | 2021-10-08 | 岳阳林纸股份有限公司 | Phyllostachys pubescens pulping process |
| CN114454280A (en) * | 2022-02-15 | 2022-05-10 | 浙江农林大学 | Method for adjusting chromatic aberration of wood veneer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07331588A (en) * | 1994-06-03 | 1995-12-19 | Honshu Paper Co Ltd | Cellulase useful for production of paper and pulp and its utilization |
| KR20090107181A (en) * | 2008-04-08 | 2009-10-13 | 박종봉 | Method of manufacturing paper products comprising preparation method of corn stalk pulp |
| CN102268832A (en) * | 2011-07-15 | 2011-12-07 | 芬欧汇川(常熟)纸业有限公司 | Pulping and papermaking process for producing middle-grade and high-grade cultural paper by using larch chemical-mechanical pulp |
| CN104141255A (en) * | 2014-07-24 | 2014-11-12 | 四川省西龙生物质材料科技有限公司 | Paper pulp made from bamboo fiber, preparation method thereof, and paper product made from paper pulp |
| CN105672013A (en) * | 2016-02-17 | 2016-06-15 | 四川永丰纸业股份有限公司 | Natural color bamboo pulp production method and natural color paper for daily use produced through same |
-
2017
- 2017-07-31 CN CN201710636336.0A patent/CN107414989A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07331588A (en) * | 1994-06-03 | 1995-12-19 | Honshu Paper Co Ltd | Cellulase useful for production of paper and pulp and its utilization |
| KR20090107181A (en) * | 2008-04-08 | 2009-10-13 | 박종봉 | Method of manufacturing paper products comprising preparation method of corn stalk pulp |
| CN102268832A (en) * | 2011-07-15 | 2011-12-07 | 芬欧汇川(常熟)纸业有限公司 | Pulping and papermaking process for producing middle-grade and high-grade cultural paper by using larch chemical-mechanical pulp |
| CN104141255A (en) * | 2014-07-24 | 2014-11-12 | 四川省西龙生物质材料科技有限公司 | Paper pulp made from bamboo fiber, preparation method thereof, and paper product made from paper pulp |
| CN105672013A (en) * | 2016-02-17 | 2016-06-15 | 四川永丰纸业股份有限公司 | Natural color bamboo pulp production method and natural color paper for daily use produced through same |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166306A (en) * | 2017-12-26 | 2018-06-15 | 四川永丰纸业股份有限公司 | A kind of full bamboo pulp NK natural kraft and its production method |
| CN108589374A (en) * | 2018-05-22 | 2018-09-28 | 四川省犍为凤生纸业有限责任公司 | A kind of paper pulp manufacturing technique |
| CN111021121A (en) * | 2019-11-06 | 2020-04-17 | 福建省青山纸业股份有限公司 | Production method for directly converting natural-color chemical KP pulp on dissolving pulp DP production line |
| CN112431050A (en) * | 2020-11-23 | 2021-03-02 | 山东太阳纸业股份有限公司 | Method for producing semi-chemical pulp in large scale by utilizing forest waste |
| CN112431050B (en) * | 2020-11-23 | 2021-10-26 | 山东太阳纸业股份有限公司 | Method for producing semi-chemical pulp in large scale by utilizing forest waste |
| CN113481743A (en) * | 2021-08-06 | 2021-10-08 | 岳阳林纸股份有限公司 | Phyllostachys pubescens pulping process |
| CN114454280A (en) * | 2022-02-15 | 2022-05-10 | 浙江农林大学 | Method for adjusting chromatic aberration of wood veneer |
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Application publication date: 20171201 |
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