CN108797195A - A kind of paper technology improving paper durable waterproof performance - Google Patents
A kind of paper technology improving paper durable waterproof performance Download PDFInfo
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- CN108797195A CN108797195A CN201810691463.5A CN201810691463A CN108797195A CN 108797195 A CN108797195 A CN 108797195A CN 201810691463 A CN201810691463 A CN 201810691463A CN 108797195 A CN108797195 A CN 108797195A
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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
- 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
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- 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
- D21H17/02—Material of vegetable origin
-
- 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
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- 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
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/07—Nitrogen-containing compounds
-
- 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
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/09—Sulfur-containing compounds
-
- 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
- D21H17/24—Polysaccharides
Abstract
The present invention relates to pulp technology for making paper, more particularly to a kind of paper technology improving paper durable waterproof performance, after being included in pulp of vegetable fibre material step, blanching step the component B that addition before the component A being made of diethylene-triamine pentaacetic acid, dodecyl sodium sulfate and modification of chitosan and sizing step in modulated process is made of the more glue of plant, pyrethrins, increasing property plant extracts and modification dialdehyde starch is added before.The present invention can effectively reduce influence of the metal ion to association with pulp bleaching, so that fiber obtains preferable swollen, paper is more easy to drying, it is furthermore possible to reduce the generation of silk flow phenomenon, improves the intensity of paper, while improving impermeabilisation power of the page to hydration liquid, also there is good antibacterial vermins-proof effect, each addO-on therapy is nontoxic, safety and environmental protection, has higher practical value and good application prospect.
Description
Technical field
The present invention relates to modern paper technical fields, and in particular to a kind of paper maker improving paper durable waterproof performance
Skill.
Background technology
Papermaking is the important invention of ancient china working people.Being divided to has mechanism and by hand two kinds of forms.Mechanism is in papermaking
It is carried out continuously on machine, the paper pulp of paper quality will be suitable for, be diluted with water to a certain concentration, it is tentatively de- in the wet end of paper machine
Water forms wet page, then through press dewatering, is then dried into paper.
On the one hand it is beaten using artificial due to hand-made paper, the fiber in paper pulp is intact while write by hand paper fiber can be non-
It is in uniformly often various direction free arrangements；Machine-made paper is beaten using machine, and paper pulp fiber is broken, and it is poor that machine-made paper has slurry network speed
Cause fiber aspect to being unevenly distributed, for example that when wet type machinery copy paper fiber can be presented is in-line along the copy paper net direction of motion,
This is known as silk flow phenomenon.And the silk stream of paper all has an impact the tear resistance, elongation, shrinkage of paper, therefore generally make
It obtains hand-made paper and is significantly better than machine-made paper on toughness pulling force.
On the other hand the metal ion in existing paper-making process caused by hydrogen peroxide and hypochlorous acid class bleaching agent to urging
Change and decompose, influences bleaching effect, and such as Fe3+Ion reacts to form dark colour compound with the phenolic group group in paper pulp, can drop
Low pulp brightness increases yellowing reversion of pulp degree, while the metal ions such as calcium, magnesium occur to chemically react shape in pulp bleaching process
At sediment, so that system equipment, pipeline scale, these metal ions can not be effectively removed in existing addition machine, are inhaled
Attached effect is not strong, be easy to cause secondary pollution.
In addition currently on the market be used for seal, package paper be widely used it is general, but with Anti-moth-eating, moisture-proof function
Sealing, wrapping paper existing market blank, which greatly limits the material selections of many packaging products, bacteria mildew-proof expelling parasite effects
The missing of fruit then be easy to cause the loss for being difficult to retrieve.
Invention content
In view of the drawbacks of the prior art, the object of the present invention is to provide a kind of paper makers improving paper durable waterproof performance
Skill, the invention can effectively reduce influence of the metal ion to association with pulp bleaching so that fiber obtains preferable swollen, and paper is more easy to
It is dry, it is furthermore possible to reduce the generation of silk flow phenomenon, improves the intensity of paper, while improving page to the impervious of hydration liquid
Saturating power also has good antibacterial vermins-proof effect, and each each component that adds is nontoxic, safety and environmental protection, has higher practical valence
Value and good application prospect.
The present invention solves technical problem and adopts the following technical scheme that：
The present invention provides a kind of paper technologies improving paper durable waterproof performance, including use system identical with existing papermaking
Slurry process, modulated process, process of manufacturing paper with pulp and post-processing process, the pulping process are divided into pulp of vegetable fibre material and bleaching two
A step, the modulated process, which is divided into, dissipates three steps of slurry, mashing and sizing and filling, and the improvement of the invention is main
For：
After pulp of vegetable fibre material step, component A is added before blanching step, with stirring at being 34-36 DEG C in temperature
Rotating speed 170-180r/min is stirred 7-9 minutes, then is stood 30-34 minutes and be transferred to next step；
Component B is added before sizing step in modulated process, under speed of agitator 10-14r/min at being 28-30 DEG C in temperature
Stirring is transferred to next step in 50-70 minutes；
The component A includes the raw material of following parts by weight：
30-55 parts of diethylene-triamine pentaacetic acid, 26-30 parts of dodecyl sodium sulfate, 4-6 parts of modification of chitosan；
The component B includes the raw material of following parts by weight：
Plant is glue 28-34 parts more, 0.5-0.9 parts of pyrethrins, 7-13 parts of plant extracts of increasing property, is modified 3-7 parts of dialdehyde starch；
The modification of chitosan is epoxychloropropane and the NH on chitosan2Reaction, the again ethylenediamine made from ethylenediamine modification
Modified crosslinking chitosan magnetic and with inverse suspension crosslinking method prepare thiourea modified, glutaraldehyde cross-linking chitosan magnetic according to
Weight ratio 2:The mixture of 3 compositions；
The modified dialdehyde starch preparation method is：The dialdehyde starch of dialdehyde content 17% is gelatinized to heat preservation 17-19 at 92-96 DEG C
Minute, glyoxal modified propylene acid amide-dialkyl dimethyl ammonium chloride that weight is dialdehyde starch weight 0.35% is added,
Temperature is that 24-26 DEG C of stirring keeps the temperature 10 minutes.
Preferably, the A includes the raw material of following parts by weight：
37 parts of diethylene-triamine pentaacetic acid, 29 parts of dodecyl sodium sulfate, 5 parts of modification of chitosan；
Component B includes the raw material of following parts by weight：
32 parts of the more glue of plant, 0.7 part of pyrethrins, 11 parts of plant extracts of increasing property, modified 5 parts of dialdehyde starch.
Preferably, the more glue of the plant are Chinese honey locust carbohydrate gum and uronic acid according to 7:The mixture of 1 ratio composition.
Preferably, the preparation method of the increasing property plant extracts is：By winter daphne, Folium Forsythia, radix scutellariae, crane grass according to weight
Than 3:2:4:After 1 crushes plus water pretreatment is made using multiple counter-current extraction, shove and vacuum concentration, wherein the time extracted
For 60min, amount of water are plant weight 6 times, degree of extracting be 40%, extraction times are 6 times, temperature concentrated in vacuo is 45 ± 2
℃。
Preferably, the component A and component B are prepared by the following method to obtain：
Step 1 weighs prepare each component raw material as required；
Diethylene-triamine pentaacetic acid, dodecyl sodium sulfate, modification of chitosan are added in blender by step 2, stirring
10-15 minutes, speed of agitator 150-250r/min obtained component A；
The more glue of plant, pyrethrins, increasing property plant extracts, modified dialdehyde starch are added in blender, stir by step 3
10-12 minutes, speed of agitator 100-200r/min obtained component B；
Step 4, component A and component B difference aseptic packagings is for use.
Preferably, the additive amount of the component A accounts for the 0.45% of entire slurry weight；
The additive amount of the component B accounts for the 0.25% of entire slurry weight.
Preferably, component A is added after pulp of vegetable fibre material step, before blanching step, is 35 DEG C in temperature
Under stirred 8 minutes with speed of agitator 175r/min, then stand 32 minutes and be transferred to next step；
Before sizing step in modulated process be added component B, temperature be 29 DEG C at speed of agitator 12r/min under stir 60
Minute is transferred to next step；
The component A includes the raw material of following parts by weight：
40 parts of diethylene-triamine pentaacetic acid, 28 parts of dodecyl sodium sulfate, 5 parts of modification of chitosan；
The component B includes the raw material of following parts by weight：
31 parts of the more glue of plant, 0.7 part of pyrethrins, 10 parts of plant extracts of increasing property, modified 5 parts of dialdehyde starch.
Compared with prior art, the present invention has following advantageous effect：
On the one hand the present invention is added after pulp of vegetable fibre material step, before blanching step by five second of diethylenetriamines
The component A that acid, dodecyl sodium sulfate and modification of chitosan are constituted can effectively adsorb all kinds of metal ions, can respectively with it is a variety of
Metal ion is combined with covalent bond, ionic bond, Van der Waals force, so as to effectively inhibit metal ion to hydrogen peroxide and hypochlorous acid
Catalytic decomposition caused by class bleaching agent, improves bleaching efficiency, saves bleaching liquor, reduces bleaching cost, and to Fe3+Ion has extremely strong
Capturing ability and dispersion effect, avoid Fe3+Ion reacts to form dark colour compound with the phenolic group group in paper pulp, and protection is fine
Dimension improves pulp brightness, reduces yellowing reversion of pulp, moreover it is possible to effectively the metal ions such as calcium, magnesium be prevented to occur in pulp bleaching process
Chemical reaction forms sediment, to prevent system equipment, pipeline scale, and can gradually remove the original fouling of rinse-system,
It has cost-effective relative to existing additive, acts synergistically, can reach that adsorption effect is good, absorbed species are more, no
Easily cause the effect of secondary pollution.
On the other hand it is added before the sizing step in modulated process by the more glue of plant and modified dialdehyde starch so that paper
Fiber obtains preferable swollen, and intensity greatly improves, and the influence to paper strength is small, and page is made to be easy drying, and yield carries
Height, energy consumption reduces, and improves the endurance quality of paper, and modified dialdehyde starch, which can be distributed in cellulose surface, prevents aqueous infiltrating
The intrusion of agent and organic solvent, while there is the performance of antiacid alkali resistant, greatly reduce the usage amount of alum, moreover it is possible to play and centainly fill out
It fills in fiber hole and has apparent retention, filtrating aid function in paper-making process, to paper folding strength, surface strength and transversal stretching
Rate has improvement, reduces wet performance of the paper to water, improves page and has reached waterproof effect to the anti-permeability performance of water and liquid
Fruit；The addition of pyrethrins and increasing property plant extraction liquid so that paper vermins-proof effect is apparent, and storage effect is preferable, security performance
It greatly improves.
Specific implementation mode
With reference to specific embodiment, technical scheme in the embodiment of the invention is clearly and completely described, shows
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1.
A kind of paper technology of the raising paper durable waterproof performance of the present embodiment, including use slurrying identical with existing papermaking
Process, modulated process, process of manufacturing paper with pulp and post-processing process, the pulping process are divided into pulp of vegetable fibre material and bleaching two
Step, the modulated process, which is divided into, dissipates three steps of slurry, mashing and sizing and filling, and the present embodiment technique, which is mainly improved, to be：
After pulp of vegetable fibre material step, component A is added before blanching step, with speed of agitator at being 34 DEG C in temperature
170r/min is stirred 7 minutes, then is stood 30 minutes and be transferred to next step；
Before sizing step in modulated process be added component B, temperature be 28 DEG C at speed of agitator 10r/min under stir 50
Minute is transferred to next step；
The component A includes the raw material of following parts by weight：
30 parts of diethylene-triamine pentaacetic acid, 26 parts of dodecyl sodium sulfate, 4 parts of modification of chitosan；
The component B includes the raw material of following parts by weight：
28 parts of the more glue of plant, 0.5 part of pyrethrins, 7 parts of plant extracts of increasing property, modified 3 parts of dialdehyde starch；
The modification of chitosan is epoxychloropropane and the NH on chitosan2Reaction, the again ethylenediamine made from ethylenediamine modification
Modified crosslinking chitosan magnetic and with inverse suspension crosslinking method prepare thiourea modified, glutaraldehyde cross-linking chitosan magnetic according to
Weight ratio 2:The mixture of 3 compositions；
The modified dialdehyde starch preparation method is：The dialdehyde starch of dialdehyde content 17% is gelatinized to heat preservation 17-19 at 92-96 DEG C
Minute, glyoxal modified propylene acid amide-dialkyl dimethyl ammonium chloride that weight is dialdehyde starch weight 0.35% is added,
Temperature is that 24-26 DEG C of stirring keeps the temperature 10 minutes.
The more glue of plant in the present embodiment are Chinese honey locust carbohydrate gum and uronic acid according to 7:The mixture of 1 ratio composition.
The preparation method of increasing plant extracts in the present embodiment is：By winter daphne, Folium Forsythia, radix scutellariae, crane grass according to weight
Measure ratio 3:2:4:1 crush after plus water pretreatment using multiple counter-current extraction, shove and be concentrated in vacuo be made, wherein extract when
Between be 60min, 6 times that amount of water is plant weight, degree of extracting are 40%, extraction times are 6 times, temperature concentrated in vacuo is 45 ± 2
℃。
Component A and component B in the present embodiment are prepared by the following method to obtain：
Step 1 weighs prepare each component raw material as required；
Diethylene-triamine pentaacetic acid, dodecyl sodium sulfate, modification of chitosan are added in blender by step 2, stirring
10 minutes, speed of agitator 150r/min obtained component A；
The more glue of plant, pyrethrins, increasing property plant extracts, modified dialdehyde starch are added in blender, stir by step 3
10 minutes, speed of agitator 100r/min obtained component B；
Step 4, component A and component B difference aseptic packagings is for use.
The additive amount of component A in the present embodiment accounts for the 0.45% of entire slurry weight；
The additive amount of the component B accounts for the 0.25% of entire slurry weight.
Embodiment 2.
A kind of paper technology of the raising paper durable waterproof performance of the present embodiment, including use slurrying identical with existing papermaking
Process, modulated process, process of manufacturing paper with pulp and post-processing process, the pulping process are divided into pulp of vegetable fibre material and bleaching two
Step, the modulated process, which is divided into, dissipates three steps of slurry, mashing and sizing and filling, and the present embodiment technique, which is mainly improved, to be：
After pulp of vegetable fibre material step, component A is added before blanching step, with speed of agitator at being 36 DEG C in temperature
180r/min is stirred 9 minutes, then is stood 34 minutes and be transferred to next step；
Before sizing step in modulated process be added component B, temperature be 30 DEG C at speed of agitator 14r/min under stir 70
Minute is transferred to next step；
The component A includes the raw material of following parts by weight：
5 parts of diethylenetriamine pentaacetic acid 5,30 parts of dodecyl sodium sulfate, 6 parts of modification of chitosan；
The component B includes the raw material of following parts by weight：
34 parts of the more glue of plant, 0.9 part of pyrethrins, 13 parts of plant extracts of increasing property, modified 7 parts of dialdehyde starch；
The modification of chitosan is epoxychloropropane and the NH on chitosan2Reaction, the again ethylenediamine made from ethylenediamine modification
Modified crosslinking chitosan magnetic and with inverse suspension crosslinking method prepare thiourea modified, glutaraldehyde cross-linking chitosan magnetic according to
Weight ratio 2:The mixture of 3 compositions；
The modified dialdehyde starch preparation method is：The dialdehyde starch of dialdehyde content 17% is gelatinized to heat preservation 17-19 at 92-96 DEG C
Minute, glyoxal modified propylene acid amide-dialkyl dimethyl ammonium chloride that weight is dialdehyde starch weight 0.35% is added,
Temperature is that 24-26 DEG C of stirring keeps the temperature 10 minutes.
The more glue of plant in the present embodiment are Chinese honey locust carbohydrate gum and uronic acid according to 7:The mixture of 1 ratio composition.
The preparation method of increasing plant extracts in the present embodiment is：By winter daphne, Folium Forsythia, radix scutellariae, crane grass according to weight
Measure ratio 3:2:4:1 crush after plus water pretreatment using multiple counter-current extraction, shove and be concentrated in vacuo be made, wherein extract when
Between be 60min, 6 times that amount of water is plant weight, degree of extracting are 40%, extraction times are 6 times, temperature concentrated in vacuo is 45 ± 2
℃。
Component A and component B in the present embodiment are prepared by the following method to obtain：
Step 1 weighs prepare each component raw material as required；
Diethylene-triamine pentaacetic acid, dodecyl sodium sulfate, modification of chitosan are added in blender by step 2, stirring
10 minutes, speed of agitator 150r/min obtained component A；
The more glue of plant, pyrethrins, increasing property plant extracts, modified dialdehyde starch are added in blender, stir by step 3
10 minutes, speed of agitator 100r/min obtained component B；
Step 4, component A and component B difference aseptic packagings is for use.
The additive amount of component A in the present embodiment accounts for the 0.45% of entire slurry weight；
The additive amount of the component B accounts for the 0.25% of entire slurry weight.
Embodiment 3.
A kind of paper technology of the raising paper durable waterproof performance of the present embodiment, including use slurrying identical with existing papermaking
Process, modulated process, process of manufacturing paper with pulp and post-processing process, the pulping process are divided into pulp of vegetable fibre material and bleaching two
Step, the modulated process, which is divided into, dissipates three steps of slurry, mashing and sizing and filling, and the present embodiment technique, which is mainly improved, to be：
After pulp of vegetable fibre material step, component A is added before blanching step, with speed of agitator at being 35 DEG C in temperature
175r/min is stirred 7-9 minutes, then is stood 32 minutes and be transferred to next step；
Before sizing step in modulated process be added component B, temperature be 29 DEG C at speed of agitator 12r/min under stir 60
Minute is transferred to next step；
The component A includes the raw material of following parts by weight：
33 parts of diethylene-triamine pentaacetic acid, 28 parts of dodecyl sodium sulfate, 5 parts of modification of chitosan；
The component B includes the raw material of following parts by weight：
31 parts of the more glue of plant, 0.7 part of pyrethrins, 10 parts of plant extracts of increasing property, modified 5 parts of dialdehyde starch；
The modification of chitosan is epoxychloropropane and the NH on chitosan2Reaction, the again ethylenediamine made from ethylenediamine modification
Modified crosslinking chitosan magnetic and with inverse suspension crosslinking method prepare thiourea modified, glutaraldehyde cross-linking chitosan magnetic according to
Weight ratio 2:The mixture of 3 compositions；
The modified dialdehyde starch preparation method is：The dialdehyde starch of dialdehyde content 17% is gelatinized to heat preservation 17-19 at 92-96 DEG C
Minute, glyoxal modified propylene acid amide-dialkyl dimethyl ammonium chloride that weight is dialdehyde starch weight 0.35% is added,
Temperature is that 24-26 DEG C of stirring keeps the temperature 10 minutes.
The more glue of plant in the present embodiment are Chinese honey locust carbohydrate gum and uronic acid according to 7:The mixture of 1 ratio composition.
The preparation method of increasing plant extracts in the present embodiment is：By winter daphne, Folium Forsythia, radix scutellariae, crane grass according to weight
Measure ratio 3:2:4:1 crush after plus water pretreatment using multiple counter-current extraction, shove and be concentrated in vacuo be made, wherein extract when
Between be 60min, 6 times that amount of water is plant weight, degree of extracting are 40%, extraction times are 6 times, temperature concentrated in vacuo is 45 ± 2
℃。
Component A and component B in the present embodiment are prepared by the following method to obtain：
Step 1 weighs prepare each component raw material as required；
Diethylene-triamine pentaacetic acid, dodecyl sodium sulfate, modification of chitosan are added in blender by step 2, stirring
10 minutes, speed of agitator 150r/min obtained component A；
The more glue of plant, pyrethrins, increasing property plant extracts, modified dialdehyde starch are added in blender, stir by step 3
10 minutes, speed of agitator 100r/min obtained component B；
Step 4, component A and component B difference aseptic packagings is for use.
The additive amount of component A in the present embodiment accounts for the 0.45% of entire slurry weight；
The additive amount of the component B accounts for the 0.25% of entire slurry weight.
Implementation result：
In order to verify the implementation result of the present invention, using with pulping process, modulated process in specific embodiment, process of manufacturing paper with pulp and after
The identical machine papermaking method in the prior art of process, differ only in after pulp of vegetable fibre material step,
Without addition component A before blanching step, that component B is not added before the sizing step in modulated process, following index is carried out
Test comparison：
1. ring crush index：The important indicator of the compressive property of body paper, the ring crush intensity of main body paper and quantitative ratio are weighed,
Unit is Nm/g, and the calculation formula of the index is：Rd=1000R/W, the Rd in formula indicate that ring crush index, R indicate ring pressure
Degree, W is quantifying for sample, unit g/m2, it is better that the higher expression paper of numerical value bears pressure, the application according to
The ring crush index of TAPPI method test papers；
2. folding strength：It is paper fold resistant fatigue strength index, for indicating that paper resists the ability back and forth folded, mainly measures paper
It opens after by the stretching of certain force, then makes the folding times needed for its fracture through folding back and forth, indicated with number；
3. whiteness：Paper White Degree is one important technology index of paper, usually fully reflective diffuser（Standard white）Whiteness
It is defined as 100%, with pattern compared with standard sample is on leucometer, the small whiteness of reflectivity is low, and the high paper of whiteness can increase ink
The contrast of mark and paper keeps picture and text apparent, and the present patent application is described using ISO brightness；
4. can vigorous method water absorption rate：The paper and cardboard of unit area certain pressure, at a temperature of, surface is absorbed at the appointed time
Water, with g/m2Meter, the present patent application use GB/T 1540《The measuring method of paper and cardboard water imbibition（It can vigorous method）》In
120s Cobb value descriptions.
Following table is the index test result of each embodiment and comparative example：
| Test index | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example |
| Ring crush index（Nm/g） | 13.8 | 14.1 | 13.2 | 10.9 |
| Folding strength（It is secondary） | 769 | 713 | 738 | 536 |
| Whiteness（%） | 45.9 | 46.7 | 46.1 | 41.3 |
| It can vigorous method water absorption rate（g/m2） | 32.1 | 36.7 | 34.5 | 38.9 |
The ring crush index performance for the paper that as seen from the above table prepared by 1-3 of the embodiment of the present invention is superior to comparative example, ring crush index phase
29.35% is promoted for comparative example highest, analyzes reason, the modification dialdehyde starch that the present invention uses is by by dialdehyde content 17%
Dialdehyde starch gelatinization heat preservation, adds glyoxal modified propylene acid amide-dialkyl group diformazan that weight is dialdehyde starch weight 0.35%
Ammonium chloride is modified so that relative to existing starch additive, it can more be uniformly distributed in cellulose surface and plays one for it
Surely it clogs fiber hole and has apparent retention, filtrating aid function, glyoxal modified propylene acid amide-dialkyl group two in paper-making process
The introducing of ammonio methacrylate, which further improves paper, prevents aqueous infiltrating agent and the intrusion of organic solvent, while having antiacid anti-
The performance of alkali greatly reduces the usage amount of alum, and the more glue Chinese honey locust carbohydrate gums of plant and uronic acid are prepared according to special ratios, Shen
It asks someone, by repetition test, to find 7:Under 1 ratio, the more glue of plant can preferably improve the printing adaptability of paper pulp, carry
High pulp fibers felt properties, the synergistic effect of the more glue of plant and modified dialdehyde starch, to surface strength of paper, transversal stretching rate
And mechanical strength has improvement, moreover it is possible to which the protrusion technique effect for realizing barrier performance reduces wet performance of the paper to water, carries
High page has reached waterproof effect to the anti-permeability performance of water and liquid；1-3 of the embodiment of the present invention is relative to comparative example water absorption rate
17.2% at most is reduced, has tangible technique effect and significant progress.
Paper White Degree embodiment of the present invention 1-3 improves 5.4% also superior to comparative example, whiteness highest, this is because planting
Be added after fibres raw pulp step, before blanching step by diethylene-triamine pentaacetic acid, dodecyl sodium sulfate and
The component A that modification of chitosan is constituted, on the one hand can be combined with various metals ion with covalent bond, ionic bond, Van der Waals force respectively,
So as to effectively inhibit metal ion to being catalytically decomposed caused by hydrogen peroxide and hypochlorous acid class bleaching agent, raising bleaching efficiency,
Bleaching liquor is saved, reduces bleaching cost, and to Fe3+Ion has extremely strong capturing ability and dispersion effect, avoids Fe3+Ion with
Phenolic group group reaction in paper pulp forms dark colour compound, protects fiber, improves pulp brightness, reduces yellowing reversion of pulp, moreover it is possible to
It effectively prevents the metal ions such as calcium, magnesium that chemical reaction occurs in pulp bleaching process and forms sediment, to which anti-locking system is set
Standby, pipeline scale, and can gradually remove the original fouling of rinse-system, have relative to existing additive it is cost-effective,
It acts synergistically, can achieve the effect that adsorption effect is good, absorbed species are more, does not easily cause secondary pollution；On the other hand this hair
The bright modification of chitosan used is the NH on epoxychloropropane and chitosan2Reaction, the again ethylenediamine made from ethylenediamine modification
Modified crosslinking chitosan magnetic and with inverse suspension crosslinking method prepare thiourea modified, glutaraldehyde cross-linking chitosan magnetic according to
Weight ratio 2:The mixture of 3 compositions, one side can do Ou Tigao, and it is water-soluble, effectively increases to the stronger suction of metal ion
Attached ability, to Hg2+、Cu2+、Ni2+Adsorption capacity can respectively reach 645.8,66.9,15.4 mg/g, to Cu2+Saturation absorption
Capacity is 1.97mmol/g, also improves the thermal stability of chitosan, can additionally be cooperateed with diethylene-triamine pentaacetic acid
Effect plays good peptizaiton to fiber, and the silk flow phenomenon that cooperation dodecyl sodium sulfate also unexpectedly reduces paper pulp carries
The intensity of paper has been risen, has been had significant innovative.
In terms of folding rate, 1-3 of the embodiment of the present invention improves 43.7% relative to comparative example, by component A and component B
Multiple addition experiment, finally found that the additive amount in component A accounts for the 0.45% of entire slurry weight；The additive amount of component B accounts for whole
0.25% effect of a slurry weight is best, can effectively reduce influence of the metal ion to association with pulp bleaching so that fiber obtain compared with
Good swollen, paper are more easy to drying, are furthermore possible to reduce the generation of silk flow phenomenon, improve the intensity of paper, while improving paper
To the impermeabilisation power of hydration liquid, pyrethrins and winter daphne, Folium Forsythia, radix scutellariae, the crane grass of addition also have good antibacterial page
Vermins-proof effect, while the preparation of increasing property plant obtain extraction parameters amount of water by multiple style and are 6 times of plant weight, squeeze
Mass dryness fraction, which is 40%, extraction times are 6 times, temperature concentrated in vacuo is 45 ± 2 DEG C can effectively extract beneficiating ingredient in plant, improve
Raw material availability, each addO-on therapy is nontoxic, safety and environmental protection, has higher practical value and good application prospect.
The index effect of comprehensive upper table simultaneously, the indices of embodiment 1-3 are although better than comparative example, embodiment
Also difference, analysis are got off between 1-3, and the overall target of embodiment 3 is best, it is seen that the content and preparation method parameter of component
Selection also have to final performance it is most important, so the innovative content selecting party for being also embodied in each component simultaneously of the present invention
Face, remaining component selection of the present invention and content selection are obviously also non-obvious certainly, and those skilled in the art tie absolutely not
Closing the prior art can readily occur in.
The present invention selects different steps that component A and component B is added in preparation method, and addition has specific characteristics, this
Kind technique matches with papermaking process, can only ensure that the paper prepared has the beneficial of invention in this way
Effect, therefore the creativeness of the present invention also resides in and has selected to add after pulp of vegetable fibre material step, before blanching step
Enter component A, component B is added before the sizing step in modulated process, and coordinate corresponding temperature and rotating speed, finally
It ensures that the paper of preparation has and prepares the marked improvement of product and the preferable market competitiveness compared with the existing technology.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (8)
1. a kind of paper technology improving paper durable waterproof performance, including using pulping process identical with existing papermaking, tune
Process, process of manufacturing paper with pulp and post-processing process processed, the pulping process are divided into two steps of pulp of vegetable fibre material and bleaching, institute
Modulated process is stated to be divided into scattered slurry, mashing and sizing and fill three steps, which is characterized in that
After pulp of vegetable fibre material step, component A is added before blanching step, with stirring at being 34-36 DEG C in temperature
Rotating speed 170-180r/min is stirred 7-9 minutes, then is stood 30-34 minutes and be transferred to next step；
Component B is added before sizing step in modulated process, under speed of agitator 10-14r/min at being 28-30 DEG C in temperature
Stirring is transferred to next step in 50-70 minutes；
The component A includes the raw material of following parts by weight：
30-55 parts of diethylene-triamine pentaacetic acid, 26-30 parts of dodecyl sodium sulfate, 4-6 parts of modification of chitosan；
The component B includes the raw material of following parts by weight：
Plant is glue 28-34 parts more, 0.5-0.9 parts of pyrethrins, 7-13 parts of plant extracts of increasing property, is modified 3-7 parts of dialdehyde starch；
The modification of chitosan is epoxychloropropane and the NH on chitosan2Reaction, the ethylenediamine made from ethylenediamine modification changes again
Sexual intercourse joins chitosan magnetic and thiourea modified, glutaraldehyde cross-linking the chitosan magnetic prepared with inverse suspension crosslinking method according to weight
Measure ratio 2:The mixture of 3 compositions；
The modified dialdehyde starch preparation method is：The dialdehyde starch of dialdehyde content 17% is gelatinized to heat preservation 17-19 at 92-96 DEG C
Minute, glyoxal modified propylene acid amide-dialkyl dimethyl ammonium chloride that weight is dialdehyde starch weight 0.35% is added,
Temperature is that 24-26 DEG C of stirring keeps the temperature 10 minutes.
2. a kind of paper technology improving paper durable waterproof performance according to claim 1, which is characterized in that described group
It includes the raw material of following parts by weight to divide A：
35-40 parts of diethylene-triamine pentaacetic acid, 28-30 parts of dodecyl sodium sulfate, 4-6 parts of modification of chitosan；
The component B includes the raw material of following parts by weight：
Plant is glue 30-34 parts more, 0.5-0.9 parts of pyrethrins, 10-12 parts of plant extracts of increasing property, is modified dialdehyde starch 4-6
Part.
3. a kind of paper technology improving paper durable waterproof performance according to claim 1, which is characterized in that the A
Include the raw material of following parts by weight：
37 parts of diethylene-triamine pentaacetic acid, 29 parts of dodecyl sodium sulfate, 5 parts of modification of chitosan；
Component B includes the raw material of following parts by weight：
32 parts of the more glue of plant, 0.7 part of pyrethrins, 11 parts of plant extracts of increasing property, modified 5 parts of dialdehyde starch.
4. a kind of paper technology of raising paper durable waterproof performance according to claims 1 to 3 any one, feature
It is, the more glue of plant are Chinese honey locust carbohydrate gum and uronic acid according to 7:The mixture of 1 ratio composition.
5. a kind of paper technology of raising paper durable waterproof performance according to claims 1 to 3 any one, feature
It is, the preparation method of the increasing property plant extracts is：By winter daphne, Folium Forsythia, radix scutellariae, crane grass according to weight ratio 3:2:4:1
After crushing plus water pretreatment using multiple counter-current extraction, shove and be concentrated in vacuo be made, wherein the time extracted be 60min,
Amount of water is 6 times of plant weight, degree of extracting is 40%, extraction times are 6 times, temperature concentrated in vacuo is 45 ± 2 DEG C.
6. a kind of paper technology of raising paper durable waterproof performance according to claims 1 to 3 any one, feature
It is, the component A and component B are prepared by the following method to obtain：
Step 1 weighs prepare each component raw material as required；
Diethylene-triamine pentaacetic acid, dodecyl sodium sulfate, modification of chitosan are added in blender by step 2, stirring
10-15 minutes, speed of agitator 150-250r/min obtained component A；
The more glue of plant, pyrethrins, increasing property plant extracts, modified dialdehyde starch are added in blender, stir by step 3
10-12 minutes, speed of agitator 100-200r/min obtained component B；
Step 4, component A and component B difference aseptic packagings is for use.
7. a kind of paper technology improving paper durable waterproof performance according to claim 1, which is characterized in that described group
The additive amount of A is divided to account for the 0.45% of entire slurry weight；
The additive amount of the component B accounts for the 0.25% of entire slurry weight.
8. a kind of paper technology improving paper durable waterproof performance according to claim 1, which is characterized in that in plant
After fibrous raw material pulping stage, component A is added before blanching step, is stirred with speed of agitator 175r/min at being 35 DEG C in temperature
It mixes 8 minutes, then stands 32 minutes and be transferred to next step；
Before sizing step in modulated process be added component B, temperature be 29 DEG C at speed of agitator 12r/min under stir 60
Minute is transferred to next step；
The component A includes the raw material of following parts by weight：
40 parts of diethylene-triamine pentaacetic acid, 28 parts of dodecyl sodium sulfate, 5 parts of modification of chitosan；
The component B includes the raw material of following parts by weight：
31 parts of the more glue of plant, 0.7 part of pyrethrins, 10 parts of plant extracts of increasing property, modified 5 parts of dialdehyde starch.
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Cited By (1)
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| CN111269664A (en) * | 2020-03-31 | 2020-06-12 | 李景舒 | High-temperature-resistant corrosion-resistant high-viscosity sticker and preparation method thereof |
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Application publication date: 20181113 |