CN116043605A - Method for producing water transfer printing base paper by using fourdrinier vat machine - Google Patents
Method for producing water transfer printing base paper by using fourdrinier vat machine Download PDFInfo
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- CN116043605A CN116043605A CN202310150072.3A CN202310150072A CN116043605A CN 116043605 A CN116043605 A CN 116043605A CN 202310150072 A CN202310150072 A CN 202310150072A CN 116043605 A CN116043605 A CN 116043605A
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- pulp
- transfer printing
- paper
- water transfer
- fourdrinier
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000010023 transfer printing Methods 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000004513 sizing Methods 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
- 238000011010 flushing procedure Methods 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 43
- 239000003292 glue Substances 0.000 claims description 29
- 229920002472 Starch Polymers 0.000 claims description 27
- 239000008107 starch Substances 0.000 claims description 27
- 235000019698 starch Nutrition 0.000 claims description 27
- 238000004537 pulping Methods 0.000 claims description 21
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 15
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 15
- 240000003183 Manihot esculenta Species 0.000 claims description 14
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 14
- 125000002091 cationic group Chemical group 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 9
- 239000011122 softwood Substances 0.000 claims description 9
- 239000011121 hardwood Substances 0.000 claims description 8
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical group O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 6
- 244000007853 Sarothamnus scoparius Species 0.000 claims description 5
- 238000010009 beating Methods 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000007865 diluting Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000010025 steaming Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 238000002791 soaking Methods 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 39
- 239000000126 substance Substances 0.000 description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 238000007639 printing Methods 0.000 description 6
- 101710179734 6,7-dimethyl-8-ribityllumazine synthase 2 Proteins 0.000 description 4
- 244000209117 Castanea crenata Species 0.000 description 4
- 235000003801 Castanea crenata Nutrition 0.000 description 4
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 4
- 101710186609 Lipoyl synthase 2 Proteins 0.000 description 4
- 101710122908 Lipoyl synthase 2, chloroplastic Proteins 0.000 description 4
- 101710101072 Lipoyl synthase 2, mitochondrial Proteins 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 4
- 238000004061 bleaching Methods 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 229920000768 polyamine Polymers 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 2
- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical compound [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/30—Disc mills
- D21D1/303—Double disc mills
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
- D21H11/04—Kraft or sulfate pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
- D21H21/20—Wet strength agents
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Paper (AREA)
Abstract
The invention belongs to the technical field of papermaking, and particularly relates to a method for producing water transfer printing base paper by a fourdrinier vat machine. The invention relates to a method for producing water transfer printing base paper by a fourdrinier vat machine, which comprises the following production process flows: pulp board, chain plate conveying, pulp grinder, discharge tank, pulp grinder, pulp forming tank, pre-papermaking tank, pulp flushing pump, pressure screen, pulp flowing box, net part, press part, large cylinder, sizing machine, cylinder assembly, calender, coiling part, rewinding, packaging and warehousing. The invention produces the qualified water transfer printing base paper by optimizing the production process method and using the paper machine with the form of the long-mesh large-cylinder film-adding transfer sizing machine, meets the requirements of water transfer printing on the smoothness and the fineness of the surface of the paper, and the paper dried by the large cylinder has the advantage of small wet deformation, thereby meeting the special requirements of water transfer printing paper for soaking transfer printing.
Description
Technical Field
The invention belongs to the technical field of papermaking, and particularly relates to a method for producing water transfer printing base paper by a fourdrinier vat machine.
Background
The water transfer printing technology is to transfer the pattern to the surface of the printing stock by using water as medium through an intermediate carrier, namely water transfer printing paper, and the special printing principle breaks through the limitation of the traditional printing on the shape of the printing stock, such as irregular shapes of size, curved surface, spherical surface, concave-convex surface and the like; meanwhile, special printing effects of art and individuality can be revealed, so that the printing ink is wider and wider in application. The water transfer paper is used as a carrier, the transfer pattern is required to be bright in color and lifelike in pattern, and the water transfer paper is required to be cut Cheng Pingzhang in use and put into an oven for drying, so that higher stiffness is required; the water transfer printing paper is composed of base paper and a coating, and is required to be high in smoothness, glossiness and stiffness in order to meet the requirements of transfer printing, and has high water absorption height and good dimensional stability. At present, the commercial water transfer printing base paper is produced by a fourdrinier multi-cylinder machine, the glossiness and the stiffness of the paper are low, the dimensional stability is poor, and the market requirement of transfer printing cannot be met.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for producing water transfer printing base paper by a fourdrinier vat machine, and the produced water transfer printing base paper has high dimensional stability, high glossiness and good stiffness, and can meet the market requirements of transfer printing.
The invention relates to a method for producing water transfer printing base paper by a fourdrinier vat machine, which comprises the following production process flows:
pulp board, chain plate conveying, pulp grinder, discharge tank, pulp grinder, pulp forming tank, pre-papermaking tank, pulp flushing pump, pressure screen, pulp flowing box, net part, press part, large cylinder, sizing machine, cylinder assembly, calender, coiling part, rewinding, packaging and warehousing.
Preferably, the pulp board is prepared as follows: bleached sulfate softwood pulp 20-30%, preferably alabama softwood pulp, bleached sulfate hardwood pulp 70-80%, preferably karabin hardwood pulp.
Preferably, the pulping process: after the bleached needle pulp and the broad-leaved pulp are uniformly mixed according to the proportion, three DD720 double-disc mills are adopted for pulping in series, the first disc mill adopts a cutting fin type abrasive disc, the second disc mill and the third disc mill adopt broom fin type abrasive discs, the beating degree is 20+/-1 DEG SR, and the wet weight is 3-5g.
Preferably, the chemical addition process is as follows:
(1) Adding filler and slurry into a pulper, mixing and pulping, wherein the adding amount of the filler is 80-100 kg/ton of slurry, and the filler is talcum powder, preferably 325-mesh talcum powder;
(2) Adding cationic starch into a pulping pond, wherein the addition amount of the cationic starch is 13-15 kg/ton pulp, and the substitution degree of the cationic starch is 0.03;
(3) Adding a wet strength agent at the inlet of a pulp pump, wherein the addition amount of the wet strength agent is 8-12 kg/ton pulp, and the main component of the wet strength agent is polyamide polyamine epichlorohydrin, preferably produced by Japanese chestnut field water treatment new material Co., ltd;
(4) 2-4 kg/ton of silica sol is added into a pipeline between the pressure screen and the head box, and the main component of the silica sol is silicon dioxide, preferably produced by Zhejiang chemical Huayang chemical industry Co.
Preferably, the surface glue process comprises the following steps: surface sizing agents are used on sizing presses, wherein:
(1) Surface sizing agent solution quality standard: the solid content is 14+/-1%, the viscosity is 15-20 mPa.S, the pH is 5-6, and the temperature is 65-70 ℃;
(2) The surface sizing agent comprises the following raw materials in parts by weight: 100 parts of amphoteric surface tapioca starch, 10 parts of polyvinyl alcohol and 675 parts of clear water; preferably, the amphoteric surface tapioca starch LS-2 produced by Jiangxi Liu and chemical industry Co., ltd, and the polyvinyl alcohol 1799 produced by Anhui Wanwei group Co., ltd;
(3) The preparation method of the surface sizing agent comprises the following steps: adding 1/3 of water in the formula amount into the amphoteric surface tapioca starch and polyvinyl alcohol 1799 type, uniformly stirring in a surface glue steaming and boiling tank, introducing steam, heating to 95 ℃, preserving heat for 20min, extracting the surface glue, mixing the surface glue diluting barrel with 2/3 of water in the formula amount to obtain a surface sizing agent solution with the solid content of 14+/-1%, and extracting the surface glue into a surface glue storage barrel for standby.
Preferably, the main parameters of the paper machine operation are as follows:
(1) The speed of the vehicle is 200-250m/min;
(2) The steam pressure of the big cylinder is 500-550kPa;
(3) Film transfer size press control parameters:
gauge stick model and pressure: front surface measuring rod V30, line pressure 20kN/m, back surface measuring rod V30, line pressure 20kN/m;
pick-up of the surface sizing agent finished paper: the front surface is more than or equal to 1.5g/m 2 The reverse side is more than or equal to 1.5g/m 2 ；
The paper forming dryness of the film feeding transfer sizing machine is more than or equal to 93 percent, and the paper forming dryness of the film discharging transfer sizing machine is more than or equal to 75 percent;
(4) And (3) a calender: hard rolling into a smooth surface of paper in a press area, wherein the pressure of the press area is 60kN/m, and the temperature of hot oil is 150 ℃; the pressure in the secondary nip was 20kN/m and the temperature of the hot oil was 120 ℃.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention confirms that the paper machine with the form of a fourdrinier vat film-adding transfer sizing machine can produce qualified water transfer base paper;
2. the preferred alabama needle leaf pulp of the invention is from the united states, and the pulp sheet has large fiber thickness, wall thickness, small fiber winding degree and large stiffness, and is most suitable for producing paper and paper boards with high stiffness.
3. The invention adopts the polyvinyl alcohol 1799 type with plasticity in the surface sizing formula, and can obviously improve the stiffness of the water transfer printing base paper.
4. The invention uses the long-mesh large-cylinder machine to produce, meets the requirements of water transfer printing on the smoothness and fineness of the surface of the paper, and the paper dried by the large cylinder has the advantage of small wet deformation, which also meets the special requirements of water transfer printing paper for soaking transfer printing.
Detailed Description
The invention is further described below with reference to examples. All materials used in the examples are commercially available, except as specified.
Example 1
The invention relates to a method for producing straw packaging paper by a fourdrinier vat machine, which comprises the following production process flows: pulp board, chain plate conveying, pulper, discharge tank, refiner, pulping tank, pre-papermaking tank, pulp flushing pump, pressure screen, pulp flowing box, net part, press part, vat, calender, coiling part, rewinding, packaging and warehousing.
Wherein:
1. the proportion of the slurry plate is as follows: bleaching sulfate softwood pulp by 30%, selecting alabama softwood pulp, bleaching sulfate hardwood pulp by 70%, and selecting carbene hardwood pulp.
2. And (3) pulping: after the bleached needle pulp and the broad-leaved pulp are uniformly mixed according to the proportion, three DD720 double-disc mills are adopted for pulping in series, the first disc mill adopts a cutting fin type abrasive disc, the second disc mill and the third disc mill adopt broom fin type abrasive discs, the beating degree is 20 DEG SR, and the wet weight is 4g.
3. The process for adding chemicals is as follows:
(1) Adding filler and slurry into a pulper, mixing and pulping, wherein the addition amount of the filler is 90 kg/ton of slurry, and the filler is 325-mesh talcum powder;
(2) Adding cationic starch into a pulping pond, wherein the addition amount of the cationic starch is 13 kg/ton pulp, and the substitution degree of the cationic starch is 0.03;
(3) Adding a wet strength agent at the inlet of a pulp pump, wherein the addition amount of the wet strength agent is 10 kg/ton pulp, and the main component of the wet strength agent is polyamide polyamine epichlorohydrin which is produced by Japanese chestnut field water treatment new material Co., ltd;
(4) 3 kg/ton of silica sol, which is mainly composed of silicon dioxide and is produced by Zhejiang chemical company of Huayang chemical industry, is added into a pipeline between a pressure screen and a head box.
4. And (3) a surface glue process: surface sizing agents are used on sizing presses, wherein:
(1) Surface sizing agent solution quality standard: the solid content is 14%, the viscosity is 18 mPa.S, the pH is 5, and the temperature is 68 ℃;
(2) The surface sizing agent comprises the following raw materials in parts by weight: 100 parts of amphoteric surface tapioca starch, 10 parts of polyvinyl alcohol 1799 type and 675 parts of clear water; selecting amphoteric surface tapioca starch LS-2 produced by Jiangxi Liu and chemical industry Co., ltd, and polyvinyl alcohol 1799 type produced by Anhui Wanwei group Co., ltd;
(3) The preparation method of the surface sizing agent comprises the following steps: adding 1/3 of water in the formula amount into the amphoteric surface tapioca starch and polyvinyl alcohol 1799 type, uniformly stirring in a surface glue steaming and boiling tank, introducing steam, heating to 95 ℃, preserving heat for 20min, extracting the surface glue, mixing the surface glue diluting barrel with 2/3 of water in the formula amount to obtain a surface sizing agent solution with the solid content of 14%, and extracting the surface glue into a surface glue storage barrel for standby.
5. The main parameters of the paper machine are as follows:
(1) The vehicle speed is 230m/min;
(2) The cylinder steam pressure is 530kPa;
(3) Film transfer size press control parameters:
gauge stick model and pressure: front surface measuring rod V30, line pressure 20kN/m, back surface measuring rod V30, line pressure 20kN/m;
pick-up of the surface sizing agent finished paper: front 1.5g/m 2 Reverse side 1.5g/m 2 ；
The paper forming dryness of the film feeding transfer sizing machine is 93 percent, and the paper forming dryness of the film discharging transfer sizing machine is 75 percent;
(4) And (3) a calender: hard rolling into a smooth surface of paper in a press area, wherein the pressure of the press area is 60kN/m, and the temperature of hot oil is 150 ℃; the pressure in the secondary nip was 20kN/m and the temperature of the hot oil was 120 ℃.
Example 2
The invention relates to a method for producing straw packaging paper by a fourdrinier vat machine, which comprises the following production process flows: pulp board, chain plate conveying, pulper, discharge tank, refiner, pulping tank, pre-papermaking tank, pulp flushing pump, pressure screen, pulp flowing box, net part, press part, vat, calender, coiling part, rewinding, packaging and warehousing.
Wherein:
1. the proportion of the slurry plate is as follows: bleaching sulfate softwood pulp by 20%, selecting alabama softwood pulp, bleaching sulfate hardwood pulp by 80%, and selecting carbene hardwood pulp.
2. And (3) pulping: after the bleached needle pulp and the broad-leaved pulp are uniformly mixed according to the proportion, three DD720 double-disc mills are adopted for pulping in series, the first disc mill adopts a cutting fin type abrasive disc, the second disc mill and the third disc mill adopt broom fin type abrasive discs, the beating degree is 19 DEG SR, and the wet weight is 3g.
3. The process for adding chemicals is as follows:
(1) Adding filler and slurry into a pulper, mixing and pulping, wherein the adding amount of the filler is 100 kg/ton of slurry, and the filler is 325-mesh talcum powder;
(2) Adding cationic starch into a pulping pond, wherein the addition amount of the cationic starch is 15 kg/ton pulp, and the substitution degree of the cationic starch is 0.03;
(3) Adding a wet strength agent at the inlet of a pulp pump, wherein the addition amount of the wet strength agent is 12 kg/ton pulp, and the main component of the wet strength agent is polyamide polyamine epichlorohydrin which is produced by Japanese chestnut field water treatment new material Co., ltd;
(4) 4 kg/ton of silica sol, which is mainly composed of silicon dioxide and is produced by Zhejiang chemical company of Huayang chemical industry, is added into a pipeline between a pressure screen and a head box.
4. And (3) a surface glue process: surface sizing agents are used on sizing presses, wherein:
(1) Surface sizing agent solution quality standard: the solid content is 13%, the viscosity is 15 mPa.S, the pH is 6, and the temperature is 70 ℃;
(2) The surface sizing agent comprises the following raw materials in parts by weight: 100 parts of amphoteric surface tapioca starch, 10 parts of polyvinyl alcohol 1799 type and 675 parts of clear water; selecting amphoteric surface tapioca starch LS-2 produced by Jiangxi Liu and chemical industry Co., ltd, and polyvinyl alcohol 1799 type produced by Anhui Wanwei group Co., ltd;
(3) The preparation method of the surface sizing agent comprises the following steps: adding 1/3 of water in the formula amount into the amphoteric surface tapioca starch and polyvinyl alcohol 1799 type, uniformly stirring in a surface glue steaming and boiling tank, introducing steam, heating to 95 ℃, preserving heat for 20min, extracting the surface glue, mixing the surface glue diluting barrel with 2/3 of water in the formula amount to obtain a surface sizing agent solution with the solid content of 13%, and extracting the surface glue into a surface glue storage barrel for standby.
The main parameters of the paper machine are as follows:
(1) The vehicle speed is 250m/min;
(2) The pressure of the steam in the big cylinder is 500kPa;
(3) Film transfer size press control parameters:
gauge stick model and pressure: front surface measuring rod V30, line pressure 20kN/m, back surface measuring rod V30, line pressure 20kN/m;
pick-up of the surface sizing agent finished paper: front 1.6g/m 2 Reverse side 1.6g/m 2 ；
The paper forming dryness of the film feeding transfer sizing machine is 94%, and the paper forming dryness of the film discharging transfer sizing machine is 77%;
(4) And (3) a calender: hard rolling into a smooth surface of paper in a press area, wherein the pressure of the press area is 60kN/m, and the temperature of hot oil is 150 ℃; the pressure in the secondary nip was 20kN/m and the temperature of the hot oil was 120 ℃.
Example 3
The invention relates to a method for producing water transfer printing base paper by a fourdrinier vat machine, which comprises the following production process flows:
pulp board, chain plate conveying, pulp grinder, discharge tank, pulp grinder, pulp forming tank, pre-papermaking tank, pulp flushing pump, pressure screen, pulp flowing box, net part, press part, large cylinder, sizing machine, cylinder assembly, calender, coiling part, rewinding, packaging and warehousing.
1. The proportion of the slurry plate is as follows: bleached sulfate softwood pulp 25%, alabama softwood pulp 75% and Karabin hardwood pulp.
2. And (3) pulping: after the bleached needle pulp and the broad-leaved pulp are uniformly mixed according to the proportion, three DD720 double-disc mills are adopted for pulping in series, the first disc mill adopts a cutting fin type abrasive disc, the second disc mill and the third disc mill adopt broom fin type abrasive discs, the beating degree is 21 DEG SR, and the wet weight is 5g.
3. The process for adding chemicals is as follows:
(1) Adding filler and slurry into a pulper, mixing and pulping, wherein the adding amount of the filler is 80 kg/ton of slurry, and the filler is 325-mesh talcum powder;
(2) Adding cationic starch into a pulping pond, wherein the addition amount of the cationic starch is 14 kg/ton pulp, and the substitution degree of the cationic starch is 0.03;
(3) Adding a wet strength agent at the inlet of a pulp pump, wherein the addition amount of the wet strength agent is 8 kg/ton pulp, and the main component of the wet strength agent is polyamide polyamine epichlorohydrin which is produced by Japanese chestnut field water treatment new material Co., ltd;
(4) 2 kg/ton of silica sol, which is mainly composed of silicon dioxide and is produced by Zhejiang chemical company of Huayang chemical industry, is added into a pipeline between a pressure screen and a head box.
4. And (3) a surface glue process: surface sizing agents are used on sizing presses, wherein:
(1) Surface sizing agent solution quality standard: the solid content is 15%, the viscosity is 20 mPa.S, the pH is 6, and the temperature is 65 ℃;
(2) The surface sizing agent comprises the following raw materials in parts by weight: 100 parts of amphoteric surface tapioca starch, 10 parts of polyvinyl alcohol 1799 type and 675 parts of clear water; selecting amphoteric surface tapioca starch LS-2 produced by Jiangxi Liu and chemical industry Co., ltd, and polyvinyl alcohol 1799 type produced by Anhui Wanwei group Co., ltd;
(3) The preparation method of the surface sizing agent comprises the following steps: adding 1/3 of water in the formula amount into the amphoteric surface tapioca starch and polyvinyl alcohol 1799 type, uniformly stirring in a surface glue steaming and boiling tank, introducing steam, heating to 95 ℃, preserving heat for 20min, extracting the surface glue, mixing the surface glue diluting barrel with 2/3 of water in the formula amount to obtain a surface sizing agent solution with the solid content of 15%, and extracting the surface glue into a surface glue storage barrel for standby.
5. The main parameters of the paper machine are as follows:
(1) The vehicle speed is 200m/min;
(2) The pressure of the big cylinder steam is 550kPa;
(3) Film transfer size press control parameters:
gauge stick model and pressure: front surface measuring rod V30, line pressure 20kN/m, back surface measuring rod V30, line pressure 20kN/m;
pick-up of the surface sizing agent finished paper: front 1.5g/m 2 Reverse side 1.5g/m 2 ；
The paper forming dryness of the film feeding transfer sizing machine is 95%, and the paper forming dryness of the film discharging transfer sizing machine is 76%;
(4) And (3) a calender: hard rolling into a smooth surface of paper in a press area, wherein the pressure of the press area is 60kN/m, and the temperature of hot oil is 150 ℃; the pressure in the secondary nip was 20kN/m and the temperature of the hot oil was 120 ℃.
The water transfer base papers prepared in examples 1 to 3 and the commercial products were tested and the comparison results are shown in Table 1.
TABLE 1 150g/m2 Water transfer base paper Performance test results
As can be seen from comparison results, the water transfer printing base paper produced by the long-mesh large-cylinder belt sizing machine has the characteristics of high smoothness and small wet deformation, and the special pulp board formula and the surface sizing formula ensure the stiffness of the paper, which are important indexes of the water transfer printing requirement.
Claims (10)
1. A method for producing water transfer printing base paper by a fourdrinier vat machine is characterized by comprising the following steps: the method comprises the following production process flows:
pulp board, chain plate conveying, pulp grinder, discharge tank, pulp grinder, pulp forming tank, pre-papermaking tank, pulp flushing pump, pressure screen, pulp flowing box, net part, press part, large cylinder, sizing machine, cylinder assembly, calender, coiling part, rewinding, packaging and warehousing.
2. The method for producing water transfer printing base paper by using a fourdrinier vat machine according to claim 1, wherein: the proportion of the slurry plate is as follows: 20-30% of bleached sulfate softwood pulp and 80-70% of bleached sulfate hardwood pulp.
3. The method for producing water transfer printing base paper by using a fourdrinier vat machine according to claim 1, wherein: the pulping process adopts three DD720 double-disc mills to pulp in series, the first disc mill adopts a cutting fin type abrasive disc, the second disc mill adopts a broom fin type abrasive disc, the beating degree is 20+/-1 DEG SR, and the wet weight is 3-5g.
4. The method for producing water transfer printing base paper by using a fourdrinier vat machine according to claim 1, wherein: adding filler and slurry into a pulper, mixing and pulping, wherein the adding amount of the filler is 80-100 kg/ton of slurry, and the filler is talcum powder.
5. The method for producing water transfer printing base paper by using a fourdrinier vat machine according to claim 1, wherein: adding 13-15kg of cationic starch per ton of pulp into a pulping pool.
6. The method for producing water transfer printing base paper by using a fourdrinier vat machine according to claim 1, wherein: and adding 8-12kg of wet strength agent per ton of pulp at the inlet of a pulp flushing pump.
7. The method for producing water transfer printing base paper by using a fourdrinier vat machine according to claim 1, wherein: 2-4kg of silica sol per ton of pulp is added in the pipeline between the pressure screen and the head box.
8. The method for producing water transfer printing base paper by using a fourdrinier vat machine according to claim 1, wherein: surface sizing agent is used on a sizing machine, and the quality standard of a surface sizing agent solution is as follows: the solid content is 14+/-1%, the viscosity is 15-20 mPa.S, the pH is 5-6, and the temperature is 65-70 ℃; the surface sizing agent comprises the following raw materials in parts by weight: 100 parts of amphoteric surface tapioca starch, 10 parts of polyvinyl alcohol 1799 type and 675 parts of water.
9. The method for producing water transfer printing base paper by using a fourdrinier vat machine according to claim 8, wherein: the preparation method of the surface sizing agent comprises the following steps: adding 1/3 of water in the formula amount into the amphoteric surface tapioca starch and polyvinyl alcohol 1799 type, uniformly stirring in a surface glue steaming and boiling tank, introducing steam, heating to 95 ℃, preserving heat for 20min, extracting the surface glue, mixing the surface glue diluting barrel with 2/3 of water in the formula amount to obtain a surface sizing agent solution with the solid content of 14+/-1%, and extracting the surface glue into a surface glue storage barrel for standby.
10. The method for producing water transfer printing base paper by using a fourdrinier vat machine according to claim 1, wherein: the main parameters of the paper machine are as follows:
(1) The speed of the vehicle is 200-250m/min;
(2) The steam pressure of the big cylinder is 500-550kPa;
(3) Film transfer size press control parameters:
gauge stick model and pressure: front surface measuring rod V30, line pressure 20kN/m, back surface measuring rod V30, line pressure 20kN/m;
pick-up of the surface sizing agent finished paper: the front surface is more than or equal to 1.5g/m 2 The reverse side is more than or equal to 1.5g/m 2 ；
The paper forming dryness of the film feeding transfer sizing machine is more than or equal to 93 percent, and the paper forming dryness of the film discharging transfer sizing machine is more than or equal to 75 percent;
(4) And (3) a calender: hard rolling into a smooth surface of paper in a press area, wherein the pressure of the press area is 60kN/m, and the temperature of hot oil is 150 ℃; the pressure in the secondary nip was 20kN/m and the temperature of the hot oil was 120 ℃.
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| CN202310150072.3A CN116043605A (en) | 2023-02-22 | 2023-02-22 | Method for producing water transfer printing base paper by using fourdrinier vat machine |
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