CN107059460A - A kind of method of paper making - Google Patents
A kind of method of paper making Download PDFInfo
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- CN107059460A CN107059460A CN201710203621.3A CN201710203621A CN107059460A CN 107059460 A CN107059460 A CN 107059460A CN 201710203621 A CN201710203621 A CN 201710203621A CN 107059460 A CN107059460 A CN 107059460A
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- papermaking
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 36
- 239000002131 composite material Substances 0.000 claims abstract description 33
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 18
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 18
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 9
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract description 9
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 8
- OSMSIOKMMFKNIL-UHFFFAOYSA-N calcium;silicon Chemical compound [Ca]=[Si] OSMSIOKMMFKNIL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 17
- 239000010881 fly ash Substances 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 14
- 238000010009 beating Methods 0.000 claims description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 10
- 229920002472 Starch Polymers 0.000 claims description 8
- 230000035484 reaction time Effects 0.000 claims description 8
- 235000019698 starch Nutrition 0.000 claims description 8
- 125000002091 cationic group Chemical group 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 7
- 239000011122 softwood Substances 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 4
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 3
- 150000007524 organic acids Chemical class 0.000 claims description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- -1 alkyl ketene dimer Chemical compound 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- 239000007844 bleaching agent Substances 0.000 claims 1
- 239000000378 calcium silicate Substances 0.000 abstract description 36
- 229910052918 calcium silicate Inorganic materials 0.000 abstract description 36
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 abstract description 36
- 238000011049 filling Methods 0.000 abstract description 7
- 239000000047 product Substances 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000000123 paper Substances 0.000 description 83
- 235000012241 calcium silicate Nutrition 0.000 description 36
- 239000000835 fiber Substances 0.000 description 19
- 239000000945 filler Substances 0.000 description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 208000023445 Congenital pulmonary airway malformation Diseases 0.000 description 6
- 239000012752 auxiliary agent Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000004061 bleaching Methods 0.000 description 4
- 235000019795 sodium metasilicate Nutrition 0.000 description 4
- 201000004384 Alopecia Diseases 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011111 cardboard Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 208000024963 hair loss Diseases 0.000 description 3
- 230000003676 hair loss Effects 0.000 description 3
- 239000011121 hardwood Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 239000011268 mixed slurry Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 244000007853 Sarothamnus scoparius Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 159000000013 aluminium salts Chemical group 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- ORVGYTXFUWTWDM-UHFFFAOYSA-N silicic acid;sodium Chemical compound [Na].O[Si](O)(O)O ORVGYTXFUWTWDM-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/66—Coatings characterised by a special visual effect, e.g. patterned, textured
- D21H19/68—Coatings characterised by a special visual effect, e.g. patterned, textured uneven, broken, discontinuous
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
The present invention provides a kind of method of paper making, including：The first paper pulp is infiltrated using sodium silicate solution, milk of lime is subsequently added and catalyst is reacted, and controls the calcium silicon ratio in reaction system to be 0.6~0.9, after the completion of reaction, the pH value of reaction product is adjusted to 9~11, obtains composite mortar；Above-mentioned composite mortar is added into the second paper pulp, papermaking systems are formed, paper making is carried out to papermaking systems.The paper making method that the present invention is provided, the problem of solving that existing active calcium silicate high-filling paper chemical assistant consumption is high, be easy to hair and powder dropping improves paper product quality, further perfect active calcium silicate papermaking application technology.
Description
Technical field
The present invention relates to a kind of method of paper making, and in particular to a kind of to be used as papermaking filler by the use of active calcium silicate
Paper making method, belongs to pulp technology for making paper.
Background technology
Active calcium silicate is a kind of excellent paper making raw material, can be applied to paper production as papermaking filler.Copied in paper
Process is made, addition active calcium silicate can significantly improve greyness of paper, improve paper performance, production cost be reduced, so activated silica
Sour calcium, which is used for papermaking, has significant economic benefit and social benefit.
But, it is easily a large amount of to adsorb paper making additives because active calcium silicate has the strong characteristic of porous, adsorptivity, so
In paper production, with the increase of active calcium silicate consumption, the consumption of paper making additive is consequently increased, and then is improved
Production cost.Also, using traditional filling method, in the case of active calcium silicate high-filling, its combination between fiber
Power is poor, so that paper hair loss, the risk of dry linting are added, so at present using active calcium silicate as papermaking filler, it adds
The amount of filling out is typically not greater than 20%.
Therefore, in order to be able under the premise of paper performance and production cost is not influenceed, improve as far as possible the calcium silicates amount of being filled with and
Greyness of paper is, it is necessary to develop a kind of suitable paper making method.
The content of the invention
To solve the above problems, the present invention provides a kind of method of paper making, starched using active calcium silicate/fiber composite
Material carries out paper making as filler, can improve active calcium silicate while paper performance and cost of material is not influenceed
The amount of being filled with and greyness of paper.
A kind of method of paper making, including：
The first paper pulp is infiltrated using sodium silicate solution, milk of lime is subsequently added and catalyst is reacted, and control
Calcium silicon ratio (CaO and SiO in reaction system processed2Mol ratio) be 0.6~0.9, after the completion of reaction, adjust reaction product pH
Value obtains composite mortar to 9~11,
Above-mentioned composite mortar is added into the second paper pulp, papermaking systems are formed, paper making is carried out to papermaking systems.
The present invention infiltrates first with sodium silicate solution to the first paper pulp, sodium silicate solution is fully infiltrated into first
Inside paper pulp fiber cavity wall, sub-wire surface and cyberspace structure；It is subsequently added milk of lime and catalyst is reacted, reaction life
Into active calcium silicate crystallize in the first pulp fiber surface, obtain composite mortar；Composite mortar is finally added to the second paper
Paper making is carried out in slurry.
Above-mentioned composite mortar, actually active calcium silicate/fiber composite slurry.The present invention is with active calcium silicate/fiber
Composite mortar as paper making filler.Because active calcium silicate can be combined fully with fiber, so in paper making mistake
In journey and after paper formed, active calcium silicate particle do not allow it is easy to fall off, so as to avoid stream of the filler in paper making process
Lose, improve the retention of the active calcium silicate particle in paper making process, solve paper hair loss in the case of high-filling, fall
The problem of powder.
It is appreciated that during being infiltrated using sodium silicate solution to the first paper pulp, the first paper pulp should have suitable
Suitable beating degree, it is ensured that its can preferable wire-dividing broom purification, so as to be conducive to the abundant combination of active calcium silicate and the first paper pulp.
In specific implementation process of the present invention, it is 60~80 ° of SR generally to control the beating degree of the first paper pulp, and above-mentioned beating degree makes silicic acid
Sodium solution is able to penetrate into inside the first paper pulp fiber cavity wall, sub-wire surface and cyberspace structure, is so follow-up synthesizing activity
Calcium silicates creates advantage, not only ensure that the abundant combination of active calcium silicate and paper pulp fiber, and makes active silicic acid
Distribution of the calcium in paper pulp fiber is more uniform.
The present invention is not specially limited for the species of the first paper pulp, in specific implementation process of the present invention, is generally selected
Bleached softwood is starched or bleaching broad-leaved is starched or the mixture of bleached softwood slurry and bleaching broad-leaved slurry.
The present invention does not do considered critical for infiltrating time, can be according to the beating degree reasonable set of the first paper pulp, generally leaching
The profit time is not less than 10min.In specific implementation process of the present invention, infiltrating time is generally 10~30min.
The present invention is not specially limited to the source of sodium silicate solution used, commercially available, also can voluntarily be prepared, such as may be used
To be the mixture or main component of sodium metasilicate and water as the solution of sodium metasilicate.In specific implementation process of the present invention,
Selected sodium silicate solution comes from flyash desiliconization liquid.Flyash desiliconization liquid is the by-product in flyash extraction alumina process
Thing, is typically that flyash is added into progress desilication reaction in sodium hydroxide solution to be made.Specifically silica quality is contained
The flyash that amount is 35~45%, which is added in the sodium hydroxide solution that mass concentration is 12~16%, carries out desilication reaction, control
Desilication reaction temperature is 100~140 DEG C, and desilication reaction is carried out after 1~3h, and obtained slurries are carried out into separation of solid and liquid, obtained
Product liquid is flyash desiliconization liquid.Using raw material of the flyash desiliconization liquid as sodium silicate solution, can further it reduce
Papermaking cost.
The present invention does not do considered critical to the concentration of sodium silicate solution and milk of lime, in specific implementation process of the present invention,
The concentration of sodium silicate solution is 40~60g/L, and the concentration of milk of lime is 120~180g/L.
The present invention is not particularly limited for the synthetic reaction condition of active calcium silicate, can be using the conventional original position in this area
Synthesis process, is that milk of lime and catalyst are added to the first paper fully infiltrated in specific implementation process of the present invention
Slurry at 20~40 DEG C with the mixed liquor of sodium silicate solution, reacting more than 90min.Extend the reaction time, active calcium silicate
Yield amplification is little, so generally controlling the reaction time to be 90~120min.
The present invention is not specially limited for catalyst used in active calcium silicate synthetic reaction process, is generally used
Catalyst is aluminium salt, such as can be the mixture of aluminium chloride, aluminum sulfate etc. or aluminium chloride and aluminum sulfate.The present invention
Addition for catalyst is not specially limited, and can be added according to the convention amount of catalyst in active calcium silicate building-up process.
After reaction terminates, adjust the pH value of reaction product to 9~11, so as to get composite mortar meet papermaking and be filled with and use
It is required that.It is that, by adding organic acid, to remove the residual alkali in reaction product, such as can make in specific implementation process of the present invention
With formic acid or acetic acid or the mixture of the two.
Above-mentioned composite mortar is added in the second paper pulp, papermaking systems are formed, then carrying out paper to papermaking systems copies
Make.Above-mentioned composite mortar, is used as papermaking filler, and the mass content of the invention for composite mortar in papermaking systems is not
Be particularly limited to, can according to conventional papermaking filler the amount of being filled with reasonable disposition.In specific implementation process of the present invention, it is combined
Mass content≤45% of the slurry butt in papermaking systems butt.Usual composite mortar butt accounts for papermaking systems butt gross mass
30~45% (i.e. the amounts of being filled with of composite mortar be 30~45%), tensile index, bulk of the paper finally given etc. are each
Index can reach use requirement, and due between paper fibre and papermaking filler adhesion it is stronger, so as to solve height
The problem of paper is easy to hair loss, dry linting in the case of being filled with.
It is appreciated that during actual paper is manufactured paper with pulp, auxiliary agent necessary to paper making should be contained in papermaking systems, can
According to suitable aid for paper making is specifically selected the demand of paper, such as papermaking process used additives and into paper used additives, this hair
It is bright not do excessive restriction herein.In specific implementation process of the present invention, it is 0.01~0.07 that the auxiliary agent of addition, which includes substitution value,
Cationic starch, alkyl ketene dimer (AKD), PAMC (CPAM).Inventor's research is found, in composite pulp
In the case that material butt accounts for papermaking systems butt gross mass 30~45%, i.e., when the amount of being filled with of papermaking filler is 30~45%, help
The addition of agent is smaller than simple using addition of the active calcium silicate as auxiliary agent during papermaking filler.In present invention specific implementation
During, the amount of being filled with of auxiliary agent can be：Cationic starch：2.5~3.5%, AKD：0.1~0.5%, CPAM：0.03~
0.08% (quality both with respect to bone dry fiber and papermaking filler and), such as cationic starch：3.0%th, AKD：0.3%th,
CPAM：0.05%.
The present invention is not specially limited for the species of the second paper pulp, and the conventional paper pulp of field of papermaking may be selected, such as with
First paper pulp is identical or different.
The concrete technology that the present invention carries out paper making to papermaking systems is not specially limited, and can be copied using traditional paper
Technique progress is made, is not repeated.
The invention provides a kind of method of paper making, filled out using active calcium silicate/fiber composite slurry as papermaking
Material, obtained greyness of paper apparently higher than simple using greyness of paper of the active calcium silicate as papermaking filler, and paper
The indices such as tensile index, bulk can reach use requirement.Also, in the case of high-filling amount (30~45%),
Substantial amounts of aid for paper making need not be added.Therefore, the present invention solves existing active calcium silicate high-filling paper chemical assistant consumption
Amount is high, the problem of be easy to hair and powder dropping, improves paper product quality, further perfect active calcium silicate papermaking application technology.
Meanwhile, the amount of being filled with of active calcium silicate can be improved by taking the method for the present invention, reduce the production cost of paper.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiments of the invention, to this
The technical scheme of invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, and
The embodiment being not all of.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work
Under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
In following examples, the measure of Substance and bulk in accordance with《GB/T 451.2-2002 paper and cardboard are quantitative
Determine》Carry out；The measure of greyness of paper in accordance with《GB/T 742-2008 paper making raw materials, paper pulp, the measure of paper and cardboard ash content》Enter
Row, paper tensile strength (tensile index) measure in accordance with《The measure of GB/T12914-2008 paper and cardboard tensile strength》Enter
OK.
Embodiment 1
The present embodiment provides a kind of method of paper making, specifically includes following steps：
1st, flyash desiliconization liquid is prepared
The flyash for being about 40wt% by dioxide-containing silica is added in the sodium hydroxide solution that concentration is 16wt%
Row desilication reaction, control desilication reaction temperature is about 120 DEG C, and the desilication reaction time is about 2h, then carries out obtained slurries
Separation of solid and liquid, collects obtained product liquid, as flyash desiliconization liquid, the concentration of wherein sodium metasilicate is about 50g/L.
2nd, composite mortar is prepared
It is 65 ° of SR bleaching needle-point leaf pulp as the first paper pulp to use beating degree, and the first paper pulp is added into above-mentioned fine coal
It is sufficiently mixed in grey desiliconization liquid and infiltrates 20min or so, is then added milk of lime and aluminium chloride that CaO concentration is about 160g/L and urge
Agent is reacted, calcium silicon ratio about 0.85 in control reaction system, and reaction temperature is 30 DEG C or so, and the reaction time is 90min.
After the completion of reaction, acetic acid is added, the pH value of reaction product is adjusted to 10 or so, obtains composite mortar, i.e. active calcium silicate/fiber
Composite mortar.
3rd, paper making
The softwood pulp for being 45 ° of SR by beating degree and hardwood pulp that beating degree is 46 ° of SR are with 3:7 mass ratio mixing is equal
It is even, the second paper pulp is obtained, above-mentioned composite mortar and aid for paper making are then added into the second paper pulp, papermaking systems are formed, so
After carry out paper making, obtain paper.
Wherein, the amount of being filled with of composite mortar is 40%, and the aid for paper making added is cationic starch：3.0%th, AKD：
0.3%th, CPAM：0.05% (relative to the consumption sum of absolute dried paper pulp and filler), concentration of manufacturing paper with pulp (i.e. deployed copy paper slurry
Expect concentration, similarly hereinafter) it is 0.8%.
The paper performance that embodiment 1 is obtained is tested, test result is as shown in table 1.
Embodiment 2
The present embodiment provides a kind of method of paper making, comprises the following steps：
1st, flyash desiliconization liquid is prepared
The flyash for being about 40wt% by dioxide-containing silica is added in the sodium hydroxide solution that concentration is 16wt%
Row desilication reaction, control desilication reaction temperature is about 120 DEG C, and the desilication reaction time is about 2h, then carries out obtained slurries
Separation of solid and liquid, collects obtained product liquid, as flyash desiliconization liquid, the concentration of wherein sodium metasilicate is about 50g/L.
2nd, composite mortar is prepared
It is 70 ° of SR bleaching needle-point leaf pulp as the first paper pulp to use beating degree, and the first paper pulp is added into above-mentioned fine coal
It is sufficiently mixed in grey desiliconization liquid and infiltrates 20min or so, is then added milk of lime and aluminium chloride that CaO concentration is about 160g/L and urge
Agent is reacted, calcium silicon ratio about 0.85 in control reaction system, and reaction temperature is about 40 DEG C, and the reaction time is 120min.
After the completion of reaction, acetic acid is added, the pH value of reaction product is adjusted to 10 or so, obtains composite mortar, i.e. active calcium silicate/fiber
Composite mortar.
3rd, paper making
The softwood pulp for being 45 ° of SR by beating degree and hardwood pulp that beating degree is 46 ° of SR are with 3:7 mass ratio is mixed
To the second paper pulp, above-mentioned composite mortar and aid for paper making are added into the second paper pulp, papermaking systems is formed, then carries out paper
Manufacture paper with pulp, obtain paper.
Wherein, the amount of being filled with of composite mortar is 40%, and the auxiliary agent added is cationic starch：3.0%th, AKD：0.3%th,
CPAM：0.05% (relative to the consumption sum of absolute dried paper pulp and filler), concentration of manufacturing paper with pulp is 0.8%.
The paper performance that embodiment 2 is obtained is tested, test result is as shown in table 1.
Reference examples 1
The softwood pulp for being 45 ° of SR by beating degree and hardwood pulp that beating degree is 46 ° of SR are with 3:7 mass ratio mixing is equal
It is even, obtain mixed slurry；Active calcium silicate filler and aid for paper making are added into mixed slurry, papermaking systems are formed, then
Paper making is carried out, paper is obtained.
Wherein, the amount of being filled with of active calcium silicate is 40%, and the aid for paper making added is cationic starch：3.0%th,
AKD：0.3%th, CPAM：0.05% (relative to the consumption sum of absolute dried paper pulp and filler), concentration of manufacturing paper with pulp is 0.8%.
The paper performance that reference examples 1 are obtained is tested, test result is as shown in table 1.
The paper performance test result of table 1
Note：" quantitative " in table 1, refers to unit area paper weight.
It can be seen from table 1, using active calcium silicate/fiber composite slurry as papermaking filler, with using activated silica merely
Sour calcium is as papermaking filler, in the larger amount of being filled with, and can significantly improve greyness of paper and paper strength, while to Paper bulk
Influence is little.
Extend in active calcium silicate/fiber composite slurry preparation process sodium silicate solution to the infiltrating time of paper pulp fiber and
Reaction time, prepared compounded mix is filled with for paper, can further improve greyness of paper, bulk and tensile index,
This explanation active calcium silicate and fully being combined for fiber are most important.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of method of paper making, it is characterised in that including：
The first paper pulp is infiltrated using sodium silicate solution, milk of lime is subsequently added and catalyst is reacted, and is controlled anti-
It is 0.6~0.9 to answer the calcium silicon ratio in system, after the completion of reaction, adjusts the pH value of reaction product to 9~11, obtains composite mortar；
Above-mentioned composite mortar is added into the second paper pulp, papermaking systems are formed, paper making is carried out to the papermaking systems.
2. according to the method described in claim 1, it is characterised in that the beating degree of first paper pulp is 60~80 ° of SR.
3. method according to claim 1 or 2, it is characterised in that first paper pulp is selected from bleached softwood and starches and bleach
At least one of broad-leaved slurry.
4. method according to claim 1 or 2, it is characterised in that the sodium silicate solution comes from flyash desiliconization liquid.
5. method according to claim 1 or 2, it is characterised in that the infiltrating time >=10min.
6. according to the method described in claim 1, it is characterised in that the reaction temperature is 20~40 DEG C, the reaction time >=
90min。
7. according to the method described in claim 1, it is characterised in that the catalyst in aluminium chloride and aluminum sulfate at least
It is a kind of.
8. according to the method described in claim 1, it is characterised in that the pH value of reaction product is adjusted using organic acid,
The organic acid is selected from least one of formic acid and acetic acid.
9. according to the method described in claim 1, it is characterised in that the butt of the composite mortar accounts for the papermaking systems butt
The 30~45% of quality.
10. the method according to claim 1 or 9, it is characterised in that in the papermaking systems, the amount of being filled with of paper making additive
For：Cationic starch：2.5~3.5%, alkyl ketene dimer：0.1~0.5%, PAMC：0.03~
0.08%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710203621.3A CN107059460A (en) | 2017-03-30 | 2017-03-30 | A kind of method of paper making |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755233A (en) * | 2018-05-01 | 2018-11-06 | 东莞市泰昌纸业有限公司 | Wet end is improved in a kind of paper-making process from waste paper to manufacture paper with pulp the method for efficiency |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060162887A1 (en) * | 2005-01-26 | 2006-07-27 | Weinstein David I | System and method to control press section dewatering on paper and pulp drying machines using chemical dewatering agents |
| CN103553501A (en) * | 2013-11-05 | 2014-02-05 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Preparation method of calcium silicate insulation material |
| CN103938488A (en) * | 2014-04-29 | 2014-07-23 | 陕西科技大学 | Method for preparing porous calcium silicate/ fiber co-milled filled paper |
| CN104818641A (en) * | 2015-05-08 | 2015-08-05 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Method for conducting fiber defibering and pulping on basis of fly ash desilicication liquid |
| CN105862501A (en) * | 2016-03-31 | 2016-08-17 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Method for synthesizing calcium silicate filler by utilizing desilication solution, paper pulp fibers and lime milk |
-
2017
- 2017-03-30 CN CN201710203621.3A patent/CN107059460A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060162887A1 (en) * | 2005-01-26 | 2006-07-27 | Weinstein David I | System and method to control press section dewatering on paper and pulp drying machines using chemical dewatering agents |
| CN103553501A (en) * | 2013-11-05 | 2014-02-05 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Preparation method of calcium silicate insulation material |
| CN103938488A (en) * | 2014-04-29 | 2014-07-23 | 陕西科技大学 | Method for preparing porous calcium silicate/ fiber co-milled filled paper |
| CN104818641A (en) * | 2015-05-08 | 2015-08-05 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Method for conducting fiber defibering and pulping on basis of fly ash desilicication liquid |
| CN105862501A (en) * | 2016-03-31 | 2016-08-17 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Method for synthesizing calcium silicate filler by utilizing desilication solution, paper pulp fibers and lime milk |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755233A (en) * | 2018-05-01 | 2018-11-06 | 东莞市泰昌纸业有限公司 | Wet end is improved in a kind of paper-making process from waste paper to manufacture paper with pulp the method for efficiency |
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