CN106498801A - A kind of preparation method of papermaking special environment protection straw pulping agents - Google Patents
A kind of preparation method of papermaking special environment protection straw pulping agents Download PDFInfo
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- CN106498801A CN106498801A CN201610886668.XA CN201610886668A CN106498801A CN 106498801 A CN106498801 A CN 106498801A CN 201610886668 A CN201610886668 A CN 201610886668A CN 106498801 A CN106498801 A CN 106498801A
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- CN
- China
- Prior art keywords
- pulping agents
- softening agent
- glass plate
- fatss
- snailase
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Classifications
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- 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
-
- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Paper (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of preparation method of papermaking special environment protection straw pulping agents, belongs to straw pulping agents preparing technical field.Present invention Snailase isolated from Limax Digestive system is standby, and rebake collects Adeps Sus domestica, inhales method using fat and extracts Oleum Ricini, submissive softening agent is obtained with polyacrylamide, hargil blending, again standby enzyme liquid and softening agent are mixed, fermentation reaction in the presence of microorganism is obtained pulping agents.Pulping agents obtained in of the invention quickly can be penetrated into inside stalk fibre, in the presence of softening agent increase the mobility of cellulose chain, beneficial to its ordered structure change, increase hydrogen bond concentration between cellulosic molecule, again by Snailase dissociate plant tissue in most of lignin and part hemicellulose so as in fiber separated from one another, formed beneficial to slurry, slurry yield is improve, is had broad application prospects.
Description
Technical field
The present invention relates to a kind of preparation method of papermaking special environment protection straw pulping agents, belongs to the preparation of straw pulping agents
Technical field.
Background technology
China's paper making raw material is extremely in short supply, a large amount of dependence on import of the paper making raw material such as timber, wood pulp, commercial pulp, waste paper, seriously
Have influence on the safety of paper industry；And China's stalk resource enriches very much, can greatly alleviate China's papermaking for pulping and paper-making
Raw material situation in short supply.Straw pulping technique has expanded pulping technique, oxidizing process cleaning pulping technology, DMC pulping techniques at present
Deng, but there is high energy consumption, pollution weight in these straw pulp and paper technologies, slurry yield low problem strong to fiber destruction power.
Physical slurrying is a kind of at present conventional method, and physical straw slurrying needs the process in mechanical thread rolling slurrying
In, inside pulping agents molecule infiltrated fiber, make fiber that to a certain degree thread rolling occur into slurry.In thread rolling into the process that starches
In, substantial amounts of hydroxyl separate out increases the concentration of hydrogen bond in cellulosic molecule.Meanwhile, dissociate the major part in plant tissue
Lignin and part hemicellulose so as in the fiber process so as to form paper pulp separated from one another.Help in pulping agents
Under, the mobility of cellulose chain increases, and is conducive to cellulose to change to ordered structure.Meanwhile, portion of cellulose is rearranged,
In this case, chemi-mechanical pulp is more beneficial for and full chemical pulp mixed-forming, and produces product.But presently used slurrying is helped
Agent solubility property is poor, relatively slow to raw material infiltration, and lignin degradation and dissolution time are longer, cause slurry yield low, and can produce and be difficult to
The black waste liquid of process, serious environment pollution after discharge.
Snailase is the mixed enzyme with biological activity found from the prolixity capsule and digestive tract of Limax, and it contains cellulose
Enzyme, pectase, Alpha amylase, proteolytic enzyme, seminase, Galactanase and aminotransferase etc..Therefore make
Pulping agents are prepared with its auxiliary, to effectively decomposition and dissolved lignin, slurry yield is improved, is had great importance.
Content of the invention
The technical problem to be solved：, the lignin degradation relatively slow to raw material infiltration for presently used pulping agents
Longer with dissolution time, cause slurry yield low, and reluctant black waste liquid can be produced, the disadvantage of serious environment pollution after discharge
End, there is provided a kind of Snailase isolated from Limax Digestive system is standby, and rebake collects Adeps Sus domestica, inhales method using fat and extracts castor
Oleum Sesami, is obtained submissive softening agent with polyacrylamide, hargil blending, then standby enzyme liquid and softening agent is mixed, in microorganism
Effect bottom fermentation reaction, is obtained pulping agents.Pulping agents obtained in of the invention quickly can be penetrated into inside stalk fibre, soft
Increase the mobility of cellulose chain in the presence of soft dose, beneficial to its ordered structure change, increase hydrogen bond between cellulosic molecule dense
Degree, then by Snailase dissociation plant tissue in most of lignin and part hemicellulose so as in fiber divide each other
From being formed beneficial to slurry, improve slurry yield, had broad application prospects.
For solving above-mentioned technical problem, the present invention using technical scheme as described below is：
（1）Select 50～60 white jade snails, put it in ceramic pot, and in ceramic pot add 1000～1200mL go from
Sub- water, then to 40～50g of Deca tea tree oil in deionized water, Nature enemy 3～5 days are stood, after Limax spues internal debris,
Hand-dissection, takes out Limax digestive gland, and extrudes wherein Digestive system, collects Digestive system and is put into horizontal centrifuge, with 9000～
9500r/min rotating speeds are centrifuged 15～20min, and isolated upper strata Snailase clear liquid is standby；
（2）The baker for building a high 1.0～1.5m with stone heap, first lights pear tree branch inside baker, and furnace wall heating is dried
After roasting 3～5h, in-furnace dust cinder is removed, the Carnis Sus domestica for taking one piece of 3～5kg is linked in stone stove, and the heat distributed using furnace wall is to cube meat
Toasted, collected the oils and fatss dripped from cube meat, stood and treat its natural coagulation；
（3）On square glass plate by the oils and fatss uniform application after above-mentioned solidification in two pieces of length of sides for 30cm, thickness is smeared in control
Spend for 5～10mm, smearing for one piece of glass plate tile one layer on oils and fatss face the castor bean after pulverizing wherein, and laying depth is 3
Another piece of glass plate is subsequently smeared oils and fatss face pressure in Semen Ricini seed layer by～5mm, then presses the brick of 3～5kg on a glass
Head, standing adsorption 7～9 days, and every other day change a Semen Ricini seed layer；
（4）To be adsorbed finish after, remove castor bean, the oil layer on glass plate is scraped with scraper, obtains compound lard, by weight
Amount number meter, weighs 30～45 parts of compound lards, 10～15 parts of polyacrylamides, 20～30 parts of hargils, is sequentially loaded into high pressure equal
In matter machine, with the pressure 20～30min of homogenization of 90～100MPa after, discharging, submissive softening agent must be made by oneself；
（5）It is 10 in mass ratio:1:1, by submissive for above-mentioned self-control softening agent, standby Snailase clear liquid and sodium lauryl sulphate
Be sequentially loaded into as mixed substrates in reactor, then whiterot fungi is accessed in mixed substrates for 10% by inoculum concentration, sealed reactor
Afterwards, after heat-preservation fermentation reacts 5～7 days at 30～40 DEG C, discharging, the lyophilization 40 at -50～-40 DEG C with vacuum freeze-drying machine
After～50min, 1～2h of grinding in ball grinder is put into, crosses 100 mesh standard sieves, the powder that will sieve is packed, and obtains final product papermaking special after packaging
Use environment-friendly stalk pulping agents.
The application process of the present invention：Count by weight, weigh papermaking special environment protection obtained in 5～10 parts of present invention respectively
Straw pulping agents, 45～50 parts of pulping raw materials and 48～55 parts of tap waters, are sequentially placed in digester, at 160～165 DEG C
80～100min of steaming and decocting, is separated by filtration prepared slurry after steaming and decocting.Pulping agents of the present invention to pulping raw material quick permeation, with other sides
Method is compared slurry yield and improves 28～30%, and Kappa number reduces 8.6～10.2, and pulping process non-pollutant discharge, without poison ring
Protect, be worthy to be popularized and use.
Compared with additive method, Advantageous Effects are the present invention：
（1）Preparation process of the present invention is simple, and gained pulping agents are fast to raw material seepage velocity, effectively shortens lignin degradation and molten
Go out the time；
（2）Pulping agents of the present invention are high using rear slurry yield, produce without black waste liquid, environmentally safe.
Specific embodiment
Select 50～60 white jade snails first, put it in ceramic pot, and in ceramic pot add 1000～
1200mL deionized waters, then to 40～50g of Deca tea tree oil in deionized water, stand Nature enemy 3～5 days, treat Limax discharge
In vivo after debris, hand-dissection takes out Limax digestive gland, and extrudes wherein Digestive system, collects Digestive system and is put into horizontal centrifuge,
15～20min is centrifuged with 9000～9500r/min rotating speeds, isolated upper strata Snailase clear liquid is standby；Then built with stone heap
Go out the baker of a high 1.0～1.5m, first light pear tree branch inside baker, to furnace wall 3～5h of heated baking after, remove in stove
Ashes, the Carnis Sus domestica for taking one piece of 3～5kg are linked in stone stove, cube meat are toasted using the heat that furnace wall distributes, and are collected from cube meat
The oils and fatss of upper drippage, stand and treat its natural coagulation；By the oils and fatss uniform application after above-mentioned solidification in two pieces of length of sides be 30cm just
On square glass plate, smearing thickness is controlled for 5～10mm, one layer of the tiling on oils and fatss face of smearing of one piece of glass plate wherein is pulverized
Castor bean afterwards, laying depth are 3～5mm, and another piece of glass plate is smeared oils and fatss face pressure in Semen Ricini seed layer subsequently, then
The brick of 3～5kg, standing adsorption 7～9 days is pressed on glass plate, and every other day changes a Semen Ricini seed layer；To be adsorbed finish
Afterwards, castor bean is removed, the oil layer on glass plate is scraped with scraper, obtain compound lard, count by weight, weigh 30～
45 parts of compound lards, 10～15 parts of polyacrylamides, 20～30 parts of hargils, are sequentially loaded in high pressure homogenizer, with 90～
After the pressure 20～30min of homogenization of 100MPa, discharging must make submissive softening agent by oneself；Last is 10 in mass ratio:1:1, will
The submissive softening agent of above-mentioned self-control, standby Snailase clear liquid and sodium lauryl sulphate are sequentially loaded in reactor as mixing bottom
Thing, then access whiterot fungi in mixed substrates for 10% by inoculum concentration, after sealed reactor, at 30～40 DEG C, heat-preservation fermentation is anti-
After answering 5～7 days, discharging, with vacuum freeze-drying machine after 40～50min of lyophilization at -50～-40 DEG C, is put in ball mill and grinds
1～2h of mill, crosses 100 mesh standard sieves, and the powder that will sieve is packed, and obtains final product papermaking special environment protection straw pulping agents after packaging.
Example 1
Select 50 white jade snails first, put it in ceramic pot, and 1000mL deionized waters are added in ceramic pot, then to
Deca 40g tea tree oil in deionized water, stands Nature enemy 3 days, and after Limax spues internal debris, hand-dissection takes out snail
Cattle digestive gland, and wherein Digestive system is extruded, collect Digestive system and be put into horizontal centrifuge, 15min is centrifuged with 9000r/min rotating speeds,
Isolated upper strata Snailase clear liquid, standby；Then the baker of a high 1.0m is built with stone heap, is first lighted inside baker
Pear tree branch, to furnace wall heated baking 3h after, remove in-furnace dust cinder, the Carnis Sus domestica for taking one piece of 3kg is linked in stone stove, distributed using furnace wall
Heat cube meat is toasted, collect from cube meat drip oils and fatss, stand treat its natural coagulation；By the oil after above-mentioned solidification
On square glass plate of the fat uniform application in two pieces of length of sides for 30cm, smearing thickness is controlled for 5mm, wherein one piece of glass plate
Smear on oils and fatss face tile one layer pulverize after castor bean, laying depth is 3mm, subsequently applying oil another piece of glass plate
Fat face pressure is in Semen Ricini seed layer, then the brick of pressure 3kg on a glass, standing adsorption 7 days, and every other day changes a Semen Ricini
Seed layer；To be adsorbed finish after, remove castor bean, the oil layer on glass plate is scraped with scraper, obtains compound lard, by weight
Number meter, weighs 30 parts of compound lards, 10 parts of polyacrylamides, 20 parts of hargils, is sequentially loaded in high pressure homogenizer, with 90MPa
Pressure homogenization 20min after, discharging, submissive softening agent must be made by oneself；Last is 10 in mass ratio:1:1, will be soft for above-mentioned self-control
It is sequentially loaded into as mixed substrates in reactor along softening agent, standby Snailase clear liquid and sodium lauryl sulphate, then by connecing
Kind of amount accesses whiterot fungi in mixed substrates, after sealed reactor for 10%, after heat-preservation fermentation reacts 5 days at 30 DEG C, discharging,
With vacuum freeze-drying machine after lyophilization 40min at -50 DEG C, grinding in ball grinder 1h is put into, crosses 100 mesh standard sieves, will sieve
Powder is packed, and obtains final product papermaking special environment protection straw pulping agents after packaging.
Count by weight, weigh papermaking special environment protection straw pulping agents, 45 parts of slurrying obtained in 5 parts of present invention respectively
Raw material and 48 parts of tap waters, are sequentially placed in digester, and steaming and decocting 80min at 160 DEG C is separated by filtration prepared slurry after steaming and decocting.
To pulping raw material quick permeation, slurry yield improves 28% to pulping agents of the present invention compared with other methods, and Kappa number reduces 8.6,
Pulping process non-pollutant discharge, asepsis environment-protecting are worthy to be popularized and use.
Example 2
Select 55 white jade snails first, put it in ceramic pot, and 1100mL deionized waters are added in ceramic pot, then to
Deca 45g tea tree oil in deionized water, stands Nature enemy 4 days, and after Limax spues internal debris, hand-dissection takes out snail
Cattle digestive gland, and wherein Digestive system is extruded, collect Digestive system and be put into horizontal centrifuge, 18min is centrifuged with 9300r/min rotating speeds,
Isolated upper strata Snailase clear liquid, standby；Then the baker of a high 1.3m is built with stone heap, is first lighted inside baker
Pear tree branch, to furnace wall heated baking 4h after, remove in-furnace dust cinder, the Carnis Sus domestica for taking one piece of 4kg is linked in stone stove, distributed using furnace wall
Heat cube meat is toasted, collect from cube meat drip oils and fatss, stand treat its natural coagulation；By the oil after above-mentioned solidification
On square glass plate of the fat uniform application in two pieces of length of sides for 30cm, smearing thickness is controlled for 8mm, wherein one piece of glass plate
Smear on oils and fatss face tile one layer pulverize after castor bean, laying depth is 4mm, subsequently applying oil another piece of glass plate
Fat face pressure is in Semen Ricini seed layer, then the brick of pressure 4kg on a glass, standing adsorption 8 days, and every other day changes a Semen Ricini
Seed layer；To be adsorbed finish after, remove castor bean, the oil layer on glass plate is scraped with scraper, obtains compound lard, by weight
Number meter, weighs 38 parts of compound lards, 13 parts of polyacrylamides, 25 parts of hargils, is sequentially loaded in high pressure homogenizer, with 95MPa
Pressure homogenization 25min after, discharging, submissive softening agent must be made by oneself；Last is 10 in mass ratio:1:1, will be soft for above-mentioned self-control
It is sequentially loaded into as mixed substrates in reactor along softening agent, standby Snailase clear liquid and sodium lauryl sulphate, then by connecing
Kind of amount accesses whiterot fungi in mixed substrates, after sealed reactor for 10%, after heat-preservation fermentation reacts 6 days at 35 DEG C, discharging,
With vacuum freeze-drying machine after lyophilization 45min at -45 DEG C, grinding in ball grinder 2h is put into, crosses 100 mesh standard sieves, will sieve
Powder is packed, and obtains final product papermaking special environment protection straw pulping agents after packaging.
Count by weight, weigh papermaking special environment protection straw pulping agents, 48 parts of slurrying obtained in 8 parts of present invention respectively
Raw material and 52 parts of tap waters, are sequentially placed in digester, and steaming and decocting 90min at 163 DEG C is separated by filtration prepared slurry after steaming and decocting.
To pulping raw material quick permeation, slurry yield improves 29% to pulping agents of the present invention compared with other methods, and Kappa number reduces 9.4,
Pulping process non-pollutant discharge, asepsis environment-protecting are worthy to be popularized and use.
Example 3
Select 60 white jade snails first, put it in ceramic pot, and 1200mL deionized waters are added in ceramic pot, then to
Deca 50g tea tree oil in deionized water, stands Nature enemy 5 days, and after Limax spues internal debris, hand-dissection takes out snail
Cattle digestive gland, and wherein Digestive system is extruded, collect Digestive system and be put into horizontal centrifuge, 20min is centrifuged with 9500r/min rotating speeds,
Isolated upper strata Snailase clear liquid, standby；Then the baker of a high 1.5m is built with stone heap, is first lighted inside baker
Pear tree branch, to furnace wall heated baking 5h after, remove in-furnace dust cinder, the Carnis Sus domestica for taking one piece of 5kg is linked in stone stove, distributed using furnace wall
Heat cube meat is toasted, collect from cube meat drip oils and fatss, stand treat its natural coagulation；By the oil after above-mentioned solidification
On square glass plate of the fat uniform application in two pieces of length of sides for 30cm, smearing thickness is controlled for 10mm, wherein one block of glass
Smearing for plate tile one layer on oils and fatss face the castor bean after pulverizing, and laying depth is 5mm, subsequently smearing another piece of glass plate
Oils and fatss face pressure is in Semen Ricini seed layer, then the brick of pressure 5kg on a glass, standing adsorption 9 days, and every other day changes a castor
Numb seed layer；To be adsorbed finish after, remove castor bean, the oil layer on glass plate is scraped with scraper, obtains compound lard, by weight
Amount number meter, weighs 45 parts of compound lards, 15 parts of polyacrylamides, 30 parts of hargils, is sequentially loaded in high pressure homogenizer, with
After the pressure homogenization 30min of 100MPa, discharging must make submissive softening agent by oneself；Last is 10 in mass ratio:1:1, will be above-mentioned
Make submissive softening agent, standby Snailase clear liquid and sodium lauryl sulphate by oneself to be sequentially loaded into as mixed substrates in reactor,
It is 10% to access whiterot fungi in mixed substrates, after sealed reactor by inoculum concentration again, after heat-preservation fermentation reacts 7 days at 40 DEG C,
Discharging, with vacuum freeze-drying machine after lyophilization 50min at -40 DEG C, is put into grinding in ball grinder 2h, crosses 100 mesh standard sieves, will
The powder that sieves is packed, and obtains final product papermaking special environment protection straw pulping agents after packaging.
Count by weight, weigh papermaking special environment protection straw pulping agents obtained in 10 parts of present invention, 50 parts of systems respectively
Slurry raw material and 55 parts of tap waters, are sequentially placed in digester, and steaming and decocting 100min at 165 DEG C is separated by filtration prepared slurry after steaming and decocting
Material.To pulping raw material quick permeation, slurry yield improves 30% to pulping agents of the present invention compared with other methods, and Kappa number is reduced
10.2, pulping process non-pollutant discharge, asepsis environment-protecting are worthy to be popularized and use.
Claims (1)
1. a kind of preparation method of papermaking special environment protection straw pulping agents, it is characterised in that concrete preparation process is：
（1）Select 50～60 white jade snails, put it in ceramic pot, and in ceramic pot add 1000～1200mL go from
Sub- water, then to 40～50g of Deca tea tree oil in deionized water, Nature enemy 3～5 days are stood, after Limax spues internal debris,
Hand-dissection, takes out Limax digestive gland, and extrudes wherein Digestive system, collects Digestive system and is put into horizontal centrifuge, with 9000～
9500r/min rotating speeds are centrifuged 15～20min, and isolated upper strata Snailase clear liquid is standby；
（2）The baker for building a high 1.0～1.5m with stone heap, first lights pear tree branch inside baker, and furnace wall heating is dried
After roasting 3～5h, in-furnace dust cinder is removed, the Carnis Sus domestica for taking one piece of 3～5kg is linked in stone stove, and the heat distributed using furnace wall is to cube meat
Toasted, collected the oils and fatss dripped from cube meat, stood and treat its natural coagulation；
（3）On square glass plate by the oils and fatss uniform application after above-mentioned solidification in two pieces of length of sides for 30cm, thickness is smeared in control
Spend for 5～10mm, smearing for one piece of glass plate tile one layer on oils and fatss face the castor bean after pulverizing wherein, and laying depth is 3
Another piece of glass plate is subsequently smeared oils and fatss face pressure in Semen Ricini seed layer by～5mm, then presses the brick of 3～5kg on a glass
Head, standing adsorption 7～9 days, and every other day change a Semen Ricini seed layer；
（4）To be adsorbed finish after, remove castor bean, the oil layer on glass plate is scraped with scraper, obtains compound lard, by weight
Amount number meter, weighs 30～45 parts of compound lards, 10～15 parts of polyacrylamides, 20～30 parts of hargils, is sequentially loaded into high pressure equal
In matter machine, with the pressure 20～30min of homogenization of 90～100MPa after, discharging, submissive softening agent must be made by oneself；
（5）It is 10 in mass ratio:1:1, by submissive for above-mentioned self-control softening agent, standby Snailase clear liquid and sodium lauryl sulphate
Be sequentially loaded into as mixed substrates in reactor, then whiterot fungi is accessed in mixed substrates for 10% by inoculum concentration, sealed reactor
Afterwards, at 30～40 DEG C, heat-preservation fermentation reacts 5～7 days, discharging, with vacuum freeze-drying machine at -50～-40 DEG C lyophilization 40～
After 50min, 1～2h of grinding in ball grinder is put into, crosses 100 mesh standard sieves, the powder that will sieve is packed, and obtains final product papermaking special after packaging
Environment-friendly stalk pulping agents.
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| CN201610886668.XA CN106498801B (en) | 2016-10-11 | 2016-10-11 | A kind of preparation method of papermaking special environment protection stalk pulping agents |
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| CN201610886668.XA CN106498801B (en) | 2016-10-11 | 2016-10-11 | A kind of preparation method of papermaking special environment protection stalk pulping agents |
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| CN106498801B CN106498801B (en) | 2018-03-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277698A (en) * | 2018-04-09 | 2018-07-13 | 王建东 | A kind of preparation method of high strength paper packaging material |
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| US5620565A (en) * | 1994-06-29 | 1997-04-15 | Kimberly-Clark Corporation | Production of soft paper products from high and low coarseness fibers |
| CN101070687A (en) * | 2007-06-21 | 2007-11-14 | 高立明 | Active pulp-making agent for paper making |
| CN101613980A (en) * | 2009-07-18 | 2009-12-30 | 大庆天成生物纤维制品有限责任公司 | A kind of biological assistant of grass as raw material cleaning pulping |
| CN102199582A (en) * | 2010-03-23 | 2011-09-28 | 叶阿彬 | Method for extraction and preservation of helicase |
| CN102230288A (en) * | 2011-07-08 | 2011-11-02 | 李树泉 | Straw bio-enzyme degradation aid and degradation pulping process |
| CN104894912A (en) * | 2015-06-08 | 2015-09-09 | 浙江华川实业集团有限公司 | Papermaking process |
-
2016
- 2016-10-11 CN CN201610886668.XA patent/CN106498801B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5620565A (en) * | 1994-06-29 | 1997-04-15 | Kimberly-Clark Corporation | Production of soft paper products from high and low coarseness fibers |
| CN101070687A (en) * | 2007-06-21 | 2007-11-14 | 高立明 | Active pulp-making agent for paper making |
| CN101613980A (en) * | 2009-07-18 | 2009-12-30 | 大庆天成生物纤维制品有限责任公司 | A kind of biological assistant of grass as raw material cleaning pulping |
| CN102199582A (en) * | 2010-03-23 | 2011-09-28 | 叶阿彬 | Method for extraction and preservation of helicase |
| CN102230288A (en) * | 2011-07-08 | 2011-11-02 | 李树泉 | Straw bio-enzyme degradation aid and degradation pulping process |
| CN104894912A (en) * | 2015-06-08 | 2015-09-09 | 浙江华川实业集团有限公司 | Papermaking process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277698A (en) * | 2018-04-09 | 2018-07-13 | 王建东 | A kind of preparation method of high strength paper packaging material |
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| Publication number | Publication date |
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| CN106498801B (en) | 2018-03-16 |
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