CN107653741A - A kind of Dry Screens spray agent and preparation method thereof - Google Patents
A kind of Dry Screens spray agent and preparation method thereof Download PDFInfo
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- CN107653741A CN107653741A CN201710820177.XA CN201710820177A CN107653741A CN 107653741 A CN107653741 A CN 107653741A CN 201710820177 A CN201710820177 A CN 201710820177A CN 107653741 A CN107653741 A CN 107653741A
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- Prior art keywords
- spray agent
- reactors
- stirring
- dry screens
- paraffin
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Classifications
-
- 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
- D21H21/02—Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control
-
- 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
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
-
- 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
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/18—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising waxes
-
- 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
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/32—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming a linkage containing silicon in the main chain of the macromolecule
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Abstract
The invention belongs to pulp technology for making paper, more particularly to a kind of Dry Screens spray agent and preparation method thereof, Dry Screens spray agent is made up of the component of following weight/mass percentage composition:Fusing point is 50 70 DEG C of the 21.0wt% of full refining level paraffin 17.0, the 1.0wt% of dimethicone 0.3, the 2.0wt% of oleic acid 1.0, the 2.0wt% of span 80 1.0, the 2.5wt% of Tween 80 1.0, the 2.5wt% of AEO 1.0, the 4.0wt% of surfactant 2.0, stabilizer 0.5wt% and the water 70wt% of APEO carboxylic acid esters.The present invention is improved by paraffin and APEO carboxylic acid esters surfactant to spray agent, used after being diluted with water, not only have the function that common promotion paper is peeled off with drying cylinder, and reduce the abrasion of scraper, reagent cost and maintenance of equipment cost are saved, improves production capacity.
Description
Technical field
The present invention relates to pulp technology for making paper, more particularly to a kind of cost is low, there is certain lubrication property to be scraped with extending
The Dry Screens spray agent in knife life-span and preparation method thereof.
Background technology
As the improvement of people's living standards, the consumption demand to paper product is increasing;Meanwhile with the development of science and technology
Papermaking equipment production capacity also constantly expands, paper machine speed more and more higher.
Paper pulp is dried to paper, coiled on the drying cylinder to run at high speed, it is desirable to and it is smoothly neat disconnected paper, coil paper occur,
This just be unable to do without dry net spray agent, and it acts on the adhesive force mainly reduced into paper on dryer surface, makes into paper and depart from rapidly
Drying cylinder.
The dry net spray agent widely applied in the market, the mainly mineral oils containing surfactant, are diluted with water
Arrive dryer surface by spray after emulsion, using the hydrophobic performance of mineral oil, the frictional force of reduction paper and dryer surface, so into
Paper can depart from drying cylinder rapidly, avoid disconnected paper phenomenon occur due to attachment.But traditional Dry Screens spray agent is with base oil
For the oil product of main component, cost is high, and is easier to hinder scraper.Paper machine is during high-speed cruising, due to mill
For damage, it is necessary to frequently change scraper, this have impact on equipment capacity.
Therefore, it is necessary to a kind of lower-cost dry net spray agent is provided to solve problem above.
The content of the invention
The main object of the present invention is to provide for that a kind of cost is low, has certain lubrication property to extend scraper blade life
Dry Screens spray agent.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of Dry Screens spray agent, are made up of the component of following weight/mass percentage composition:Fusing point is 50-70 DEG C of full refining
Level paraffin 17.0-21.0wt%, dimethicone 0.3-1.0wt%, oleic acid 1.0-2.0wt%, Span-80 1.0-
2.0wt%, Tween-80 1.0-2.5wt%, AEO 1.0-2.5wt%, APEO carboxylic acid esters
Surfactant 2.0-4.0wt%, stabilizer 0.5wt% and water 70wt%.
Specifically, the AEO formula is RO (CH2CH2O)mH, wherein m=3-20, R are carbon number
For 8 to 18 alkyl.
Specifically, the surfactant formula is R1COO(CH2CH2O)nCOR2, wherein R1、R2It is 8 to arrive for carbon number
18 alkyl, n=4-50.
Specifically, the stabilizer is one kind in sodium carboxymethyl starch, sodium carboxymethylcellulose, polyacrylamide.
A kind of preparation method of Dry Screens spray agent, step include:
1. proportioning is pressed by paraffin, dimethicone, oleic acid, Span-80, Tween-80, AEO and surface
Activating agent adds 1# reactors, opens and stirring is started when steam is warming up to paraffin melting, continues to be heated to stop heating at 75 DEG C;
2. adding water and stabilizer in 2# reactors by proportioning, stirring is heated to 70-80 DEG C after 20 minutes;
3. the material in 2# reactors is added into 1# reactors within 1-2 minutes, continue stirring 10 minutes, it is then that its is cold
But 25-30 DEG C is arrived, stops stirring, you can blowing is packed.
Specifically, Dry Screens spray agent pH value 6.0-8.0 described in reaction end, viscosity≤500mPas at 25 DEG C.
Compared with prior art, a kind of beneficial effect of Dry Screens spray agent of the present invention is:
The present invention is improved by paraffin and APEO carboxylic acid esters surfactant to spray agent, is diluted with water
After use, not only have the function that common promotion paper and drying cylinder are peeled off, and reduce the abrasion of scraper, save medicament into
Originally with maintenance of equipment cost, production capacity is improved.
Embodiment
A kind of preparation method of Dry Screens spray agent, step include:
1. proportioning is pressed by paraffin, dimethicone, oleic acid, Span-80, Tween-80, AEO and surface
Activating agent adds 1# reactors, opens and stirring is started when steam is warming up to paraffin melting, continues to be heated to stop heating at 75 DEG C;
2. adding water and stabilizer in 2# reactors by proportioning, stirring is heated to 70-80 DEG C after 20 minutes;
3. the material in 2# reactors is added into 1# reactors within 1-2 minutes, continue stirring 10 minutes, it is then that its is cold
But 25-30 DEG C is arrived, stops stirring, you can blowing is packed.
Described paraffin be fusing point from 50-70 DEG C of full refining level paraffin, by weight percentage, dosage is in 17.7-
21.0%;Described dimethicone be viscosity between 50-1000mPas, dosage 0.3-1.0%;Live on described surface
Property agent includes oleic acid, and freezing point is at 8 DEG C, and dosage is in 1.0-2.0%;Span-80 dosage is in 1.0-2.0%;Tween-80 dosage exists
1.0-2.5%;AEO RO (CH2CH2O)mH, wherein m=3-20, R are the alkyl that carbon number is 8 to 18,
Dosage is in 1.0-2.5%;Structural formula is R1COO(CH2CH2O)nCOR2Surfactant, wherein R1、R2It is 8 for carbon number
To 18 alkyl, n=4-50, dosage is in 2.0-4.0%;Described stabilizer is polyacrylamide, xanthans, CMS
One or more in sodium, sodium carboxymethylcellulose, dosage are 0.5%;Deionized water dosage is 70.0%.
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
Embodiment 1
The full refining level paraffin 177kg that fusing point is 58 DEG C is added to 1# reactors first, addition viscosity is 1000mPas
Dimethicone 10kg, freezing point is 8 DEG C of oleic acid 15kg, and Span-80 adds 12kg, and Tween-80 adds 22kg, AEO-3
23kg is added, the dioleic acid ester of Macrogol 600 adds 36kg, opens reacting kettle jacketing steam valve and begins to warm up, thing in kettle
Material temperature degree starts stirring when reaching 60 DEG C, temperature of charge is up to steam off valve at 75 DEG C;Deionized water is added in 2# reactors
700kg, stirring is started, sodium carboxymethyl starch 5kg is added in 1-2 minutes, stirring opens reacting kettle jacketing steam valve after 10 minutes
Door, steam off valve when heating water to 80 DEG C;It is when 1#, 2# material in reactor, water temperature are all at 70-85 DEG C, 2# is anti-
Answer kettle (2# reactors installation site is higher than 1# reactors, open after dispensing valve the reliable potential difference of hot water enters 1# reactors in kettle)
Interior hot water added 1# reactors in 2 minutes, adds rear 2# reactors and stops stirring, 1# material in reactor continues 10 points of stirring
Clock, then can be cooled down, and temperature of charge is down into 25-30 DEG C, can stop stirring, you can to 1000kg product blowing bags are made
Dress.
Embodiment 2
The full refining level paraffin 210kg that fusing point is 62 DEG C is added to 1# reactors first, it is 500mPas's to add viscosity
Dimethicone 5kg, freezing point are 8 DEG C of oleic acid 14kg, and Span-80 adds 10kg, and Tween-80 adds 17kg, and AEO-15 adds
Enter 14kg, the dioleic acid ester of cetomacrogol 1000 adds 25kg, opens reacting kettle jacketing steam valve and begins to warm up, material in kettle
Temperature starts stirring when reaching 60 DEG C, temperature of charge is up to steam off valve at 75 DEG C;Deionized water is added in 2# reactors
700kg, stirring is started, sodium carboxymethylcellulose 5kg is added in 1-2 minutes, stirring opens reacting kettle jacketing steam after 10 minutes
Valve, steam off valve when heating water to 75 DEG C;When 1#, 2# material in reactor, water temperature are all at 70-85 DEG C, by 2#
(2# reactors installation site is higher than 1# reactors to reactor, opens after dispensing valve that the reliable potential difference of hot water enters 1# reactions in kettle
Kettle) interior hot water added 1# reactors in 1 minute, and add rear 2# reactors and stop stirring, 1# material in reactor continues to stir
It 10 minutes, then can cool down, temperature of charge is down to 25-30 DEG C, can stop stirring, you can to 1000kg product blowings are made
Packaging.
Embodiment 3
It is 52 DEG C of fully refined paraffin wax 190kg to add fusing point to 1# reactors first, adds the diformazan that viscosity is 100mPas
Base silicone oil 8kg, freezing point are 8 DEG C of oleic acid 14kg, and Span-80 adds 16kg, Tween-80 16kg, the 15kg of paregal O -7,
The oleate 36kg of peregal O-25, open reacting kettle jacketing steam valve and begin to warm up, when temperature of charge reaches 55 DEG C in kettle
Start stirring, temperature of charge is up to steam off valve at 85 DEG C;700kg water is added in 2# reactors, starts stirring, 1-2 divides
The PAM 5kg that molecular weight is 6,000,000 are slowly added into clock, stirring is begun to warm up after 10 minutes, temperature to stopping heating at 80 DEG C;
When 1#, 2# material in reactor, water temperature are all at 70-85 DEG C, by 2# reactors, (2# reactors installation site is reacted higher than 1#
Kettle, opens after dispensing valve that the reliable potential difference of hot water enters 1# reactors in kettle) interior hot water added 1# reactors in 2 minutes, adds
2# reactors stop stirring after complete, and 1# material in reactor continues stirring 10 minutes, then can cool down, temperature of charge is down to
25-30 DEG C, it can stop stirring, you can to 1000kg products blowing packaging is made.
Dry Screens spray agent outward appearance obtained by embodiment 1-3 is white " milky " liquid, solid content 30%, pH value 6-8, viscosity
≤ 500mPas (25 DEG C), it is well dispersed in cold water.
Paraffin is the long chain alkane solid for having higher melt, not only with hydrophobic performance, also with good lubricant effect;
Dimethicone has the function that to significantly reduce surface tension, can improve wetting effect of the drop on surface, reduce contact angle;
Surfactant is made up of hydrophobic part and hydrophilic segment, has different hydrophilic lipophilic balances (HLB value), selection difference
The surfactant of HLB value, the small emulsion of stable storing, particle diameter can be prepared;Hydrophilic, the hydrophobic knot of surfactant
Structure, water-wet side is easy to be combined with paper pulp fiber, hydrophobic side is towards drying cylinder, it may have lubrication;With " hydrophobe-hydrophile-dredge
The surfactant of water " structure, can be played between paper pulp fiber and drying cylinder " bridge " effect, can improve paper pulp fiber with
Effect between drying cylinder, beneficial to the stable operation of paper machine.
Product of the present invention is in Sichuan paper plant paper machine applicable cases:The quantitative 18.5g/m of paper kind2, paper machine speed 700m/min,
This product addition is 0.7kg/t, scraper replacement cycle 216min, blade wears amount 0.37mm/10km;Same paper machine application
The product of other companies, addition 0.5kg/t, scraper replacement cycle are 195min, and blade wears amount is 0.47mm/10km.
Though product of the present invention 0.2kg more than current oils product to paper addition per ton, integrated cost reduces by 15%;
Using product of the present invention, the scraper replacement cycle extends, blade wears amount is reduced, and illustrates that this product is meeting that departing from drying cylinder into paper wants
While asking, there is more preferably greasy property, advantageously reduce cost of equipment maintenance, improve the production capacity of equipment.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (6)
1. a kind of Dry Screens spray agent, it is characterised in that are made up of the component of following weight/mass percentage composition:Fusing point is 50-70 DEG C
Full refining level paraffin 17.0-21.0wt%, dimethicone 0.3-1.0wt%, oleic acid 1.0-2.0wt%, Span-80
1.0-2.0wt%, Tween-80 1.0-2.5wt%, AEO 1.0-2.5wt%, polyoxyethylene ether carboxylate
Surfactant 2.0-4.0wt%, stabilizer 0.5wt% and the water 70wt% of class.
2. Dry Screens according to claim 1 spray agent, it is characterised in that:The AEO formula is
RO(CH2CH2O)mH, wherein m=3-20, R are the alkyl that carbon number is 8 to 18.
3. Dry Screens according to claim 1 spray agent, it is characterised in that:The surfactant formula is R1COO
(CH2CH2O)nCOR2, wherein R1、R2The alkyl for being 8 to 18 for carbon number, n=4-50.
4. Dry Screens according to claim 1 spray agent, it is characterised in that:The stabilizer be sodium carboxymethyl starch,
One kind in sodium carboxymethylcellulose, polyacrylamide.
5. usage right requires the preparation method of any Dry Screens spray agent of 1-4, it is characterised in that step includes:
1. proportioning is pressed by paraffin, dimethicone, oleic acid, Span-80, Tween-80, AEO and surface-active
Agent adds 1# reactors, opens and stirring is started when steam is warming up to paraffin melting, continues to be heated to stop heating at 70-85 DEG C;
2. adding water and stabilizer in 2# reactors by proportioning, stirring is heated to 70-85 DEG C after 20 minutes;
3. the material in 2# reactors is added into 1# reactors within 1-2 minutes, continue stirring 10 minutes, be then cooled to
25-30 DEG C, stop stirring, you can blowing is packed.
6. the preparation method according to right is wanted to ask 5, it is characterised in that:Dry Screens described in reaction end spray agent pH value
6.0-8.0, viscosity≤500mPas at 25 DEG C.
Priority Applications (1)
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CN201710820177.XA CN107653741A (en) | 2017-09-13 | 2017-09-13 | A kind of Dry Screens spray agent and preparation method thereof |
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CN201710820177.XA CN107653741A (en) | 2017-09-13 | 2017-09-13 | A kind of Dry Screens spray agent and preparation method thereof |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103255674A (en) * | 2013-04-08 | 2013-08-21 | 上海东升新材料有限公司 | Lubricant for papermaking, its preparation method and application |
CN103254363A (en) * | 2013-04-08 | 2013-08-21 | 上海东升新材料有限公司 | Preparation method and application of lubricant for papermaking |
CN105970723A (en) * | 2016-05-09 | 2016-09-28 | 陕西科技大学 | Stripping agent with complex formulation of mineral oil and emulsifying agent for drying cylinder as well as preparation method thereof |
CN106906688A (en) * | 2017-03-03 | 2017-06-30 | 山东太阳生活用纸有限公司 | A kind of Yankee dryer remover |
-
2017
- 2017-09-13 CN CN201710820177.XA patent/CN107653741A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103255674A (en) * | 2013-04-08 | 2013-08-21 | 上海东升新材料有限公司 | Lubricant for papermaking, its preparation method and application |
CN103254363A (en) * | 2013-04-08 | 2013-08-21 | 上海东升新材料有限公司 | Preparation method and application of lubricant for papermaking |
CN105970723A (en) * | 2016-05-09 | 2016-09-28 | 陕西科技大学 | Stripping agent with complex formulation of mineral oil and emulsifying agent for drying cylinder as well as preparation method thereof |
CN106906688A (en) * | 2017-03-03 | 2017-06-30 | 山东太阳生活用纸有限公司 | A kind of Yankee dryer remover |
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Application publication date: 20180202 |