CN107012708B - A kind of preparation process of high intensity, environmentally friendly hemp paper - Google Patents
A kind of preparation process of high intensity, environmentally friendly hemp paper Download PDFInfo
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- CN107012708B CN107012708B CN201710168556.5A CN201710168556A CN107012708B CN 107012708 B CN107012708 B CN 107012708B CN 201710168556 A CN201710168556 A CN 201710168556A CN 107012708 B CN107012708 B CN 107012708B
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- 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
-
- 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
-
- 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
- D21D1/02—Methods of beating; Beaters of the Hollander type
-
- 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
- D21D1/30—Disc mills
-
- 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
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/62—Rosin; Derivatives thereof
-
- 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
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- Paper (AREA)
Abstract
The present invention provides a kind of high intensity, the preparation processes of environmentally friendly hemp paper, include the following steps：(1) after hemp is cleaned, kiering 20 40 minutes in boiling water；(2) through Na2S2O3After aqueous solution electrolysis processing, electrolyte is heated to 70 80 DEG C, 10 after twenty minutes, takes out hemp, rinses well；(3) hemp through electrolysis processing is added in into composite enzyme solution enzymolysis；(4) after the hemp chopping crossed enzymolysis processing, pulping, removal crude fibre, mill mashing；(5) gained slurry is through punching slurry, processing of manufacturing paper with pulp of surfing the Internet, while adds sticking agent, reverse to be glued；(6) through squeeze, dry, press polish, batch, cut and be packed into the library be made hemp paper.The present invention digests united method using electrochemica biological and degumming process is carried out to hemp, then makees sticking agent using modified beta cyclodextrin, and preparation section is simple, chemical waste fluid is few, and production efficiency is high, and gained hemp paper has the advantages that intensity is high, environmentally protective.
Description
Technical field
The invention belongs to pulp technology for making paper, and in particular to a kind of high intensity, the preparation process of environmentally friendly hemp paper.
Background technology
Hemp system Moraceae category annual herb plant, scientific name cannabis Salival, popular name Chinese fiber crops, cold fiber crops, hemp, flower
Fiber crops etc., Hemp Varieties are up to 150 or so, are mainly distributed on Asia, Europe, and China is Asia hemp production center, cultivate face
Product and yield occupy first place in the world, and the place of production spreads all over the country, but predominantly Yellow River basin, and the Tai'an in Shandong, the Huating in Gansu all have
The hemp producing region of name is the major economic crops of this area.To the of less demanding of weather and soil, it grows fast for hemp plantation
Speed, insect pest ability is strong, and will not cause land pollution without insecticide and fertilizer during plantation, and environmental ecology is good,
And plantation harvest time is shorter, often 0.07 hectare can harvest two to the hemp for being three times in cotton.Hemp can generate for raw material
High-grade hemp paper is widely used in producing in cigarette paper, filter paper, banknote, high quality filing paper.
What is directly stripped down from big anesthesia stem is known as raw ramie, also contains in addition to containing cellulose components in raw ramie certain
The non-cellulose components of amount grade including lignin, hemicellulose, cerolipoid, pectin and part aqueous object and ash.If make raw ramie
With spinnability, it is necessary to these non-cellulose components be removed, obtain degummed ramie, i.e. degumming.Lignin and half in hemp
The content height of cellulose directly affects degumming difficulty and the quality of hemp paper.
Lignin is high to the stability of inorganic acid in hemp, therefore pickling is undesirable to the removal effect of lignin, and wooden
The presence of quality is affected to quality of textile products.In the prior art frequently with sulfite solution kiering, lignin is removed,
But effect is also not satisfactory, it usually needs soda boiling auxiliary enhancing degumming effect.Chemical Degumming will consume a large amount of chemical industry simultaneously
Raw material and energy, production cost are high, contain harmful chemical component in treated sewage, easily pollute environment, and processing time
It is long, it is not easily recycled.
Invention content
It is united using electrochemistry-biological enzymolysis the present invention provides a kind of high intensity, the preparation process of environmentally friendly hemp paper
Method carries out hemp degumming process, then makees sticking agent using modified beta-cyclodextrin, and preparation section is simple, chemical waste fluid is few, raw
Produce efficient, gained hemp paper has the advantages that intensity is high, environmentally protective.
The technical proposal for solving the technical problem of the invention is：
The preparation process of a kind of high intensity, environmentally friendly hemp paper, the preparation method include the following steps：
(1) high temperature scouring：It after hemp is cleaned, is placed in boiling water after kiering 20-40 minute, taking-up is rushed using tap water
Wash clean.Hemp individual fiber cells interweave under the bonding of intercellular layer substance to be reticulated, and hemp first is passed through high temperature scouring
The reticular structure degree of cross linking reduces, and is conducive to small molecule and enters in reticular structure.
(2) it is electrolysed：Hemp through high temperature scouring is added in electrolytic cell, after room temperature electrolysis is handled 10-20 minutes, closes electricity
Power supply is solved, electrolyte is heated to 70-80 DEG C, after keeping the temperature 10-20 minutes, hemp is taken out, is placed in tap water and impregnates half an hour
Afterwards, it then rinses well for use；The electrolyte is 15-20w%Na2S2O3Aqueous solution.
Na2S2O3The electrolysis equation of aqueous solution is：
Na2S2O3+H2O→2Na++SO3H-+OH-+S
Na2S2O3The generated sulfonate radical of electrolysis and lignin reaction, can generate water-soluble lignosulfonates,
So as to which lignin be removed.Electrolysis terminates after 10-20 minutes, and electrolyte is in alkalescent at this time, and raising temperature continues in alkaline item
Kiering under part, further except delignification.Hemp first through step (1) described in high temperature scouring, reduce the density of reticular structure, make
It obtains sulfonate radical electrolytically generated in step (2) smoothly to enter in reticular structure, increase and the reaction probabilities of lignin, so as to increase
Degumming rate.In addition, the alkaline matter of cell reaction generation, can further remove lignin, avoid additionally adding in alkaline matter,
Reduce production cost and waste liquor contamination.
(3) it digests：Hemp of the gained in step (2) through electrolysis processing is added in composite enzyme solution, in PH4.5-6,45-
After being digested 2-4 hours at 55 DEG C, tap water is rinsed well, using the substances such as enzymolysis depolymerized pectin, further degumming.
(4) slurrying：After the hemp chopping that step (3) enzymolysis processing is crossed, it is added to the water, the pulping at 40-45 DEG C, then pass through
Fluffer removes crude fibre, obtains the fibre bundle of granularity≤1mm, and alkali is added in into slurry and adjusts PH to 7.0-7.5, then using disk
Mill mashing；
(5) it is glued：By slurry obtained by step (4) through punching slurry, processing of manufacturing paper with pulp of surfing the Internet, and during online is manufactured paper with pulp, to slurry
It is 5 that caustic soda is added in material to slurry PH, adds sticking agent, the gum rosin that addition mass concentration is 10% after 12-18 seconds-water-soluble
Liquid is inversely glued, and the additive amount of the sticking agent is 15-30kg/ tons of slurries, and the additive amount of gum rosin-aqueous solution is 100-200kg/
Ton slurry.Internal sizing agent is made using gum rosin, water resistant, anti-ink, anti-lotion and the corrosion resistance of paper can be increased.In water
Hemp and gum rosin are all negatively charged, and there are electrostatic repulsion effects between the two, it is therefore desirable to which adding in sticking agent will
Gum rosin sediment is attached on hemp, to reach sizing purpose.
(6) into paper：By the slurry being glued through squeeze, dry, press polish, batch, cut and be packed into the library be made needed for it is big
Numb paper.
Preferably, the mass ratio of hemp and boiling water described in step (1) is 1:15-20.
Preferably, the anode material of electrolytic cell described in step (2) is RuO2-TiO2/ Ti coated electrodes, PbO2/ Ti is plated
Layer electrode or stainless steel；The cathode electrode sheet material is stainless steel, carbon steel or titanium.
Preferably, the quality of electrolyte described in step (2) is 8-15 times of hemp quality.
Preferably, composite enzyme solution described in step (3) is made of following parts by weight raw material：20-30 parts of pectases,
10-15 portions of hemicellulases, 5-10 parts of sodium chloride and 50-60 parts of water.Using complex enzyme coordinated enzymatic hydrolysis, compared to single enzyme enzyme
Solution, has the advantages that hydrolysis temperature is low, the time is short, efficient.The activity of enzyme can be effectively improved by adding in sodium chloride, so as to improve enzyme
Solve efficiency.
Preferably, the quality of composite enzyme solution described in step (3) is 10-15 times of hemp quality.
Preferably, the concrete technology of the mashing of mill described in step (4) is mashing slurry pressure 0.30-0.35MPa, beating degree
For 50-60 ° of SR.In order to obtain higher paper strength, it usually needs higher beating degree, but when beating degree is excessively high, hemp
Fiber is excessively cut off, and paper strength can be caused to reduce instead, while is increased equipment energy consumption, extended the production time.
It is further preferred that the preparation method of sticking agent described in step (5) is：Beta-cyclodextrin is added in 60-70 DEG C of hot water and is pasted
After changing 30 minutes, 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are added in, control system PH is 4-5, and it is small that 2-3 is reacted at 50-60 DEG C
Shi Hou is cooled to room temperature, filtering, and for filter cake with ethyl alcohol washing by soaking for several times with after washing, vacuum drying obtains required sticking agent.It is existing
Some paper industry sticking agents are usually aluminum sulfate, aluminium polychloride, polyamine, polydimethyl diallyl ammonium chloride, polyethylene
Imines and polyvinylamine etc., more than sticking agent anchor effect is general, and remaining sticking agent environmental pollution is larger, and the present invention adopts
Make sticking agent with modified beta-cyclodextrin, anchor effect is good, and safety non-pollution.
It is further preferred that the mass ratio of the beta-cyclodextrin and 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides is 1:0.2-0.4.
Beneficial effects of the present invention are：
1st, the present invention handles hemp in a manner that electrochemistry-biological enzymolysis is combined, and makes its appropriate degumming, avoids simultaneously
Using the shortcomings that degumming rate caused by sulfite chemical degumming is low, chemical waste liquid amount is big.
2nd, sticking agent is made using modified beta-cyclodextrin, avoids that chemical sticking agent anchor effect is bad and residual sticking agent pair
The pollution problem of environment.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments to the present invention
It is further elaborated.
Embodiment 1
(1) 20g beta-cyclodextrins are added in 70 DEG C of 100g hot water after being gelatinized 30 minutes, adds in the chloro- 2- hydroxypropyls three of 5g 3-
Ammonio methacrylate, control system PH are 4, after being reacted 3 hours at 50 DEG C, are cooled to room temperature, and are filtered, and the immersion of filter cake ethyl alcohol is washed
It washs for several times with after washing, vacuum drying obtains sticking agent needed for 22g；
(2) high temperature scouring：After 100g hemps are cleaned, be placed in 1800g boiling water after kiering 30 minutes, take out, using from
Water is rinsed well；
(3) it is electrolysed：Hemp through high temperature scouring is added in electrolytic cell, using 1000g 20w%Na2S2O3Aqueous solution is normal
Warm electrolysis processing after ten minutes, closes electrolysis power, and electrolyte is heated to 75 DEG C, after keeping the temperature 15 minutes, takes out hemp, is placed in
After impregnating half an hour in tap water, then rinse well for use；
(4) it digests：Hemp of the gained in step (3) through electrolysis processing is added in 1000g composite enzyme solutions, in PH5,50
After being digested 3 hours at DEG C, tap water is rinsed well；The composite enzyme solution is made of following parts by weight raw material：20 parts of pectin
Enzyme, 15 portions of hemicellulases, 5 parts of sodium chloride and 60 parts of water；
(5) slurrying：After the hemp chopping that step (4) enzymolysis processing is crossed, it is added to the water, the pulping at 45 DEG C, then through dredging
Solution machine removes crude fibre, obtains the fibre bundle of granularity≤1mm, and alkali adjusting PH is added in into slurry and is beaten to 7.0, then using mill
Slurry；
(6) it is glued：By slurry obtained by step (5) through punching slurry, processing of manufacturing paper with pulp of surfing the Internet, and during online is manufactured paper with pulp, to slurry
It is 5 that caustic soda is added in material to slurry PH, adds the sticking agent of step (1), and the rosin that mass concentration is 10% is added in after 15 seconds
Glue-aqueous solution is inversely glued, and the additive amount of the sticking agent is 20kg/ tons of slurries, and the additive amount of gum rosin-aqueous solution is 150kg/
Ton slurry；
(7) into paper：By the slurry being glued through squeeze, dry, press polish, batch, cut and be packed into the library be made needed for it is big
Numb paper.
Embodiment 2
(1) 20g beta-cyclodextrins are added in 60 DEG C of 100g hot water after being gelatinized 30 minutes, adds in the chloro- 2- hydroxypropyls three of 4g 3-
Ammonio methacrylate, control system PH are 4.5, after being reacted 2 hours at 60 DEG C, are cooled to room temperature, and are filtered, and filter cake is impregnated with ethyl alcohol
For several times with after washing, vacuum drying obtains sticking agent needed for 23.2g for washing；
(2) high temperature scouring：After 100g hemps are cleaned, it is placed in kiering in 2000g boiling water and after twenty minutes, takes out, using certainly
Water is rinsed well；
(3) it is electrolysed：Hemp through high temperature scouring is added in electrolytic cell, using 800g 18w%Na2S2O3Aqueous solution room temperature
Electrolysis is handled after twenty minutes, closes electrolysis power, electrolyte is heated to 80 DEG C, heat preservation after ten minutes, takes out hemp, is placed in certainly
After impregnating half an hour in water, then rinse well for use；
(4) it digests：Hemp of the gained in step (3) through electrolysis processing is added in 1200g composite enzyme solutions, in PH4.5,
After being digested 4 hours at 45 DEG C, tap water is rinsed well；The composite enzyme solution is made of following parts by weight raw material：25 portions of fruits
Glue enzyme, 10 portions of hemicellulases, 10 parts of sodium chloride and 55 parts of water；
(5) slurrying：After the hemp chopping that step (4) enzymolysis processing is crossed, it is added to the water, the pulping at 40 DEG C, then through dredging
Solution machine removes crude fibre, obtains the fibre bundle of granularity≤1mm, and alkali adjusting PH is added in into slurry and is beaten to 7.5, then using mill
Slurry；
(6) it is glued：By slurry obtained by step (5) through punching slurry, processing of manufacturing paper with pulp of surfing the Internet, and during online is manufactured paper with pulp, to slurry
It is 5 that caustic soda is added in material to slurry PH, adds the sticking agent of step (1), and the rosin that mass concentration is 10% is added in after 12 seconds
Glue-aqueous solution is inversely glued, and the additive amount of the sticking agent is 15kg/ tons of slurries, and the additive amount of gum rosin-aqueous solution is 200kg/
Ton slurry；
(7) into paper：By the slurry being glued through squeeze, dry, press polish, batch, cut and be packed into the library be made needed for it is big
Numb paper.
Embodiment 3
(1) 20g beta-cyclodextrins are added in 65 DEG C of 100g hot water after being gelatinized 30 minutes, adds in the chloro- 2- hydroxypropyls three of 8g 3-
Ammonio methacrylate, control system PH are 5, after being reacted 2.5 hours at 55 DEG C, are cooled to room temperature, and are filtered, and filter cake is impregnated with ethyl alcohol
For several times with after washing, vacuum drying obtains sticking agent needed for 22.6g for washing；
(2) high temperature scouring：After 100g hemps are cleaned, it is placed in kiering in 1500g boiling water and after forty minutes, takes out, using certainly
Water is rinsed well；
(3) it is electrolysed：Hemp through high temperature scouring is added in electrolytic cell, using 1500g 15w%Na2S2O3Aqueous solution is normal
After temperature electrolysis processing 15 minutes, electrolysis power is closed, electrolyte is heated to 70 DEG C, heat preservation after twenty minutes, is taken out hemp, is placed in
After impregnating half an hour in tap water, then rinse well for use；
(4) it digests：Hemp of the gained in step (3) through electrolysis processing is added in 1500g composite enzyme solutions, in PH6,55
After being digested 2 hours at DEG C, tap water is rinsed well；The composite enzyme solution is made of following parts by weight raw material：30 parts of pectin
Enzyme, 12 portions of hemicellulases, 8 parts of sodium chloride and 50 parts of water；
(5) slurrying：After the hemp chopping that step (4) enzymolysis processing is crossed, it is added to the water, the pulping at 42 DEG C, then through dredging
Solution machine removes crude fibre, obtains the fibre bundle of granularity≤1mm, and alkali adjusting PH is added in into slurry and is beaten to 7.5, then using mill
Slurry；
(6) it is glued：By slurry obtained by step (5) through punching slurry, processing of manufacturing paper with pulp of surfing the Internet, and during online is manufactured paper with pulp, to slurry
It is 5 that caustic soda is added in material to slurry PH, adds the sticking agent of step (1), and the rosin that mass concentration is 10% is added in after 18 seconds
Glue-aqueous solution is inversely glued, and the additive amount of the sticking agent is 30kg/ tons of slurries, and the additive amount of gum rosin-aqueous solution is 100kg/
Ton slurry；
(7) into paper：By the slurry being glued through squeeze, dry, press polish, batch, cut and be packed into the library be made needed for it is big
Numb paper.
Comparative example 1
Using the operation processing hemp identical with embodiment 1, the difference is that the hemp in comparative example 1 is without high temperature scouring.
Comparative example 2
Using the operation processing hemp identical with embodiment 1, the difference is that composite enzyme solution in 2 step of comparative example (5)
Quality is 20 times of hemp quality.
4 hemp paper performance test of embodiment
Measure embodiment 1-3, the results of property of hemp paper of comparative example 1-2 is shown in Table 1,
Table 1：
| Vertically and horizontally tearability/mN | Bursting strength/KPa | Vertically and horizontally be averaged fracture length/Km | |
| Embodiment 1 | 155 | 102 | 7.2 |
| Embodiment 2 | 152 | 108 | 6.8 |
| Embodiment 3 | 161 | 105 | 7.5 |
| Comparative example 1 | 123 | 91 | 8.2 |
| Comparative example 2 | 135 | 79 | 8.6 |
It can be seen from Table 1 that：The hemp paper intensity prepared by method provided by the present invention is higher.Comparative example 1 is not
It is handled through high temperature scouring, the intensity of hemp hemp paper is not high.The compound enzyme dosage that comparative example 2 uses is excessive, leads to pectin substance
Content is too low, and hemp degumming is excessive so that hemp short flannel is more, and hemp paper intensity declines.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (8)
1. the preparation process of a kind of high intensity, environmentally friendly hemp paper, which is characterized in that the preparation process includes the following steps：
(1) high temperature scouring：It after hemp is cleaned, is placed in boiling water after kiering 20-40 minute, taking-up is rinsed well using tap water；
(2) it is electrolysed：Hemp through high temperature scouring is added in electrolytic cell, after room temperature electrolysis is handled 10-20 minutes, closes electrolysis power,
Electrolyte is heated to 70-80 DEG C, after keeping the temperature 10-20 minutes, hemp is taken out, is placed in tap water after impregnating half an hour, then rush
Wash clean is for use；The electrolyte is 15-20w% Na2S2O3Aqueous solution；(3) it digests：By gained in step (2) through electrolysis at
The hemp of reason is added in composite enzyme solution, and after being digested 2-4 hours at pH4 .5-6,45-55 DEG C, tap water is rinsed well；
(4) slurrying：After the hemp chopping that step (3) enzymolysis processing is crossed, it is added to the water, the pulping at 40-45 DEG C, then through fluffer
Crude fibre is removed, obtains the fibre bundle of granularity≤1mm, alkali adjusting pH is added in into slurry and is beaten to 7.0-7.5, then using mill
Slurry；(5) it is glued：By slurry obtained by step (4) through punching slurry, processing of manufacturing paper with pulp of surfing the Internet, and during online is manufactured paper with pulp, into slurry
It is 5 that caustic soda, which is added in, to slurry pH, adds sticking agent, and it is inverse that gum rosin-aqueous solution that mass concentration is 10% is added in after 12-18 seconds
To sizing, the additive amount of the sticking agent is 15-30kg/ tons of slurries, and the additive amount of gum rosin-aqueous solution is 100-200kg/ tons
Slurry；(6) into paper：By the slurry being glued through squeeze, dry, press polish, batch, cut and be packed into the library be made needed for hemp paper；
Composite enzyme solution described in step (3) is made of following parts by weight raw material：20-30 parts of pectases, 10-15 parts of hemicelluloses
Plain enzyme, 5-10 part sodium chloride and 50-60 parts of water.
2. the preparation process of high intensity as described in claim 1, environmentally friendly hemp paper, which is characterized in that big described in step (1)
The mass ratio of fiber crops and boiling water is 1:15-20.
3. the preparation process of high intensity as described in claim 1, environmentally friendly hemp paper, which is characterized in that electric described in step (2)
The anode material for solving slot is RuO2-TiO2/ Ti coated electrodes, PbO2/ Ti coating electrodes or stainless steel；The cathode electrode plate
Material is stainless steel, carbon steel or titanium.
4. the preparation process of high intensity as described in claim 1, environmentally friendly hemp paper, which is characterized in that electric described in step (2)
The quality for solving liquid is 8-15 times of hemp quality.
5. the preparation process of high intensity as described in claim 1, environmentally friendly hemp paper, which is characterized in that multiple described in step (3)
The quality of synthase solution is 10-15 times of hemp quality.
6. the preparation process of high intensity as described in claim 1, environmentally friendly hemp paper, which is characterized in that disk described in step (4)
The concrete technology of mill mashing is mashing slurry pressure 0.30-0.35MPa, and beating degree is 50-60 ° of SR.
7. the preparation process of high intensity as described in claim 1, environmentally friendly hemp paper, which is characterized in that solid described in step (5)
The preparation method for agent is：Beta-cyclodextrin is added in 60-70 DEG C of hot water after being gelatinized 30 minutes, add in the chloro- 2- hydroxypropyls three of 3-
Ammonio methacrylate, control system pH are 4-5, after being reacted 2-3 hours at 50-60 DEG C, are cooled to room temperature, and are filtered, filter cake second
For alcohol washing by soaking for several times with after washing, vacuum drying obtains required sticking agent.
8. the preparation process of high intensity as claimed in claim 7, environmentally friendly hemp paper, which is characterized in that the beta-cyclodextrin with
The mass ratio of 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides is 1:0.2-0.4.
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|---|---|---|---|---|
| CN101550607B (en) * | 2009-05-16 | 2011-05-25 | 太原理工大学 | Hemp fiber degumming boiling-off additive, preparing method and application thereof |
| CN104532364A (en) * | 2014-12-11 | 2015-04-22 | 青岛佰众化工技术有限公司 | Method for degumming hemp fiber |
| CN106012632B (en) * | 2016-05-20 | 2018-04-10 | 山西朱好古麻笺纸业有限公司 | A kind of numb writing paper preparation method using hemp as raw material |
| CN106087503A (en) * | 2016-06-16 | 2016-11-09 | 浙江理工大学 | Preparation method for the Fructus Cannabis root bast filter paper of haze mask |
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