CN116043609A - Method for producing straw packaging paper by using fourdrinier vat paper machine - Google Patents
Method for producing straw packaging paper by using fourdrinier vat paper machine Download PDFInfo
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- CN116043609A CN116043609A CN202310130345.8A CN202310130345A CN116043609A CN 116043609 A CN116043609 A CN 116043609A CN 202310130345 A CN202310130345 A CN 202310130345A CN 116043609 A CN116043609 A CN 116043609A
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- pulp
- fourdrinier
- vat
- machine according
- producing straw
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- 239000010902 straw Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 28
- 239000000945 filler Substances 0.000 claims description 26
- 238000004537 pulping Methods 0.000 claims description 21
- 230000014759 maintenance of location Effects 0.000 claims description 14
- 238000011010 flushing procedure Methods 0.000 claims description 13
- 239000004408 titanium dioxide Substances 0.000 claims description 11
- 125000002091 cationic group Chemical group 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 7
- 238000010009 beating Methods 0.000 claims description 6
- 239000011121 hardwood Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 244000007853 Sarothamnus scoparius Species 0.000 claims description 5
- 229920002472 Starch Polymers 0.000 claims description 5
- 125000000129 anionic group Chemical group 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 235000013305 food Nutrition 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000008107 starch Substances 0.000 claims description 5
- 235000019698 starch Nutrition 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002002 slurry Substances 0.000 description 19
- 235000010215 titanium dioxide Nutrition 0.000 description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- 241000220479 Acacia Species 0.000 description 4
- 235000010643 Leucaena leucocephala Nutrition 0.000 description 4
- 230000035699 permeability Effects 0.000 description 3
- 244000215068 Acacia senegal Species 0.000 description 2
- 235000006491 Acacia senegal Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 235000019402 calcium peroxide Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000013410 fast food Nutrition 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 238000004064 recycling 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
- D21H27/10—Packing paper
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
-
- 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
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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 packaging paper production, and particularly relates to a method for producing straw packaging paper by a fourdrinier vat machine. The invention relates to a method for producing straw packaging paper by a fourdrinier vat machine, which comprises the following production process flows: the invention uses a high-speed paper machine equipped with a long-mesh large cylinder to produce qualified straw packaging paper through optimizing a production process method, is environment-friendly, and has the advantages of excellent surface performance, good printing effect, high coverage rate, attractive appearance and smooth and soft hand feeling.
Description
Technical Field
The invention belongs to the technical field of packaging paper production, and particularly relates to a method for producing straw packaging paper by a fourdrinier vat machine.
Background
In recent years, with the vigorous development of restaurant industries such as domestic fast food restaurants, milk tea restaurants and the like, the consumption of straws is obviously increased, and the demand for paper straw packaging is also increasing. At present, plastic packaging is still adopted for packaging part of straws, so that the defects of difficult degradation and unfriendly environment are overcome, and the common paper straw packaging solves the problem of environmental pollution caused by plastic packaging, but has the problems of poor hand feeling, poor printing effect, low coverage rate and the like, is extremely easy to show the primary colors of the straws, and mainly uses the natural-color straws in the market, so that the drinking feeling of products is influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for producing the straw packaging paper by using a fourdrinier vat paper machine, which is environment-friendly, excellent in surface performance, good in printing effect, high in coverage rate, attractive in appearance and smooth and soft in hand feeling.
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, pulp grinder, discharge tank, pulp grinder, pulp forming tank, pre-papermaking tank, pulp flushing pump, pressure screen, pulp flowing box, net part, press part, vat, coiling part, rewinding, packaging and warehousing.
Preferably, the pulp board is prepared from bleached Indonesia sulfate hardwood pulp 100%, preferably Indonesia sulfate acacia pulp, indonesia small acacia pulp, indonesia OKI acacia pulp and the like.
Preferably, three DD720 double-disc mills are adopted for pulping in series in the pulping process, a cutting fin type abrasive disc is adopted for the first disc mill, a broom fin type abrasive disc is adopted for the second disc mill and the third disc mill, the beating degree is 60-64 DEG SR, and the wet weight is 1.5-2.0g.
Preferably, the chemical addition process is as follows:
(1) Adding direct suntan and filler into a pulper, mixing and pulping with slurry, wherein the direct suntan adding amount is 30-50 g/ton of slurry, and the filler adding amount is 180-230 kg/ton of slurry;
the preparation method of the filler comprises the following steps: 65-70% of light calcium carbonate and 30-35% of titanium dioxide, and adding water to prepare a filler with mass concentration of 22% after uniformly mixing the light calcium carbonate and the titanium dioxide; a portion of the filler was added to the pulper and another portion was added in the flow system using QCS system to adjust ash value retention to 22%;
(2) Adding 8-16kg of cationic starch per ton of slurry into a pipeline between a slurry forming tank and a pre-papermaking tank;
(3) Adding AKD 8-12 kg/ton pulp and food grade wet strength agent 8-15 kg/ton pulp into the inlet of the pulp pump;
(4) Adding 200-300g of cationic retention aid per ton of pulp into a pipeline between a pulp flushing pump and a pressure screen;
(5) 200-300g of anionic retention aid per ton of pulp is added to the pipeline between the pressure screen and the headbox.
Preferably, the main parameters of the paper machine operation are as follows:
(1) The speed of the vehicle is 450-550m/min;
(2) The steam pressure of the big cylinder is 500-550kPa, the air temperature of the wet end of the big cylinder hood is 220-280 ℃, the dry end is 220-280 ℃, and the dryness of the big cylinder is 94-96%.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention confirms that the high-speed paper machine with the fourdrinier vat can produce qualified straw packaging paper.
2. The invention uses 100% Indonesia sulfate hardwood pulp, which can effectively improve the opacity of the paper due to the better optical property.
3. The invention adopts 100% broad leaf pulp and higher beating degree to ensure good uniformity of paper, thereby improving even distribution of filler and increasing opacity and printing applicability of paper.
4. The filler of the invention adopts light calcium and titanium dioxide to mix according to a certain proportion, ensures the opacity of paper, namely the coverage rate, directly resists the addition of tanning and effectively reduces the production cost.
5. The invention does not use a calender, a calender is arranged in a conventional special paper machine, and a calender is needed for common paper types, but the invention does not use a calender, so that the thickness of the paper is effectively improved, the optical property of the paper is relatively improved, the covering rate of the paper can be increased, the stiffness of the paper can be improved, and good hand feeling of a product is ensured.
6. The invention adopts the large vat paper machine to produce, and the smoothness and glossiness of the front surface of the straw packaging paper are obviously improved due to the high-temperature ironing effect of the surface of the large vat, which is beneficial to the definition and reality of the printed pattern; meanwhile, the paper sheets are affected by the diffusion effect of water vapor at the large cylinder, so that the bulk of the paper sheets is improved, and the large cylinder machine can produce products with high bulk and high glossiness.
7. The straw packaging paper product can be recycled, meets the requirement of development recycling economy, and is an environment-friendly product.
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, pulp grinder, discharge tank, pulp grinder, pulp forming tank, pre-papermaking tank, pulp flushing pump, pressure screen, pulp flowing box, net part, press part, vat, coiling part, rewinding, packaging and warehousing.
Wherein:
1. proportioning of the slurry plate: bleached Indonesia sulfate hardwood pulp 100%: indonesia brand acacia wood pulp.
2. And (3) pulping: 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 62 DEG SR, and the wet weight is 1.7g.
3. The process for adding chemicals is as follows:
(1) Adding direct suntan and filler into a pulper, mixing and pulping with slurry, wherein the direct suntan adding amount is 40 g/ton of slurry, and the filler adding amount is 200 kg/ton of slurry;
the preparation method of the filler comprises the following steps: 70% of light calcium and 30% of Nanjing titanium white chemical rutile type titanium dioxide (NR-950), and adding water to prepare filler with mass concentration of 22% after uniformly mixing the light calcium and the titanium dioxide; a portion of the filler was added to the pulper and another portion was added in the flow system using QCS system to adjust ash value retention to 22%;
(2) Adding 10 kg/ton of cationic starch into a pipeline between a pulping tank and a pre-pulping tank;
(3) Adding AKD 8 kg/ton pulp and 12 kg/ton pulp of food grade wet strength agent into the inlet of a pulp flushing pump;
(4) 250g of cationic retention aid per ton of pulp is added into a pipeline between a pulp flushing pump and a pressure screen;
(5) 220g of anionic retention aid per ton of pulp was added to the pipe between the pressure screen and the headbox.
4. The main parameters of the paper machine are as follows:
(1) The vehicle speed is 501m/min;
(2) The steam pressure of the big cylinder is 523kPa, the air temperature of the wet end of the big cylinder gas hood is 260 ℃, the dry end is 260 ℃, and the dryness of the big cylinder is 94%;
(3) A calender is not used.
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, pulp grinder, discharge tank, pulp grinder, pulp forming tank, pre-papermaking tank, pulp flushing pump, pressure screen, pulp flowing box, net part, press part, vat, coiling part, rewinding, packaging and warehousing.
Wherein:
1. proportioning of the slurry plate: bleached Indonesia sulfate hardwood pulp 100%: indonesia acacia senegal pulp.
2. And (3) pulping: 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 64 DEG SR, and the wet weight is 1.6g.
3. The process for adding chemicals is as follows:
(1) Adding direct suntan and filler into a pulper, mixing and pulping with slurry, wherein the direct suntan adding amount is 40 g/ton of slurry, and the filler adding amount is 200 kg/ton of slurry;
the preparation method of the filler comprises the following steps: 65% of light calcium and 35% of Nanjing titanium white chemical rutile type titanium dioxide (NR-950), and adding water to prepare a filler with mass concentration of 22% after uniformly mixing the light calcium and the titanium dioxide; a portion of the filler was added to the pulper and another portion was added in the flow system using QCS system to adjust ash value retention to 22%;
(2) Adding 12 kg/ton of cationic starch into a pipeline between a pulping tank and a pre-pulping tank;
(3) Adding AKD 10 kg/ton pulp and food grade wet strength agent 10 kg/ton pulp into the inlet of a pulp flushing pump;
(4) Adding 300g of cationic retention aid per ton of slurry into a pipeline between a slurry pump and a pressure screen;
(5) 300g of anionic retention aid per ton of pulp was added to the pipe between the pressure screen and the headbox.
4. The main parameters of the paper machine are as follows:
(1) The vehicle speed is 510m/min;
(2) The steam pressure of the big cylinder is 545kPa, the air temperature of the wet end of the big cylinder air cover is 265 ℃, the air temperature of the dry end is 265 ℃, and the dryness of the big cylinder is 94%;
(3) A calender is not used.
Example 3
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, pulp grinder, discharge tank, pulp grinder, pulp forming tank, pre-papermaking tank, pulp flushing pump, pressure screen, pulp flowing box, net part, press part, vat, coiling part, rewinding, packaging and warehousing.
Wherein:
1. proportioning of the slurry plate: bleached Indonesia sulfate hardwood pulp 100%: indonesia acacia senegal pulp.
2. And (3) pulping: 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 60 DEG SR, and the wet weight is 1.9g.
3. The process for adding chemicals is as follows:
(1) Adding direct suntan and filler into a pulper, mixing and pulping with slurry, wherein the direct suntan adding amount is 40 g/ton of slurry, and the filler adding amount is 200 kg/ton of slurry;
the preparation method of the filler comprises the following steps: 67% of light calcium and 33% of Nanjing titanium white chemical rutile type titanium dioxide (NR-950), and adding water to prepare a filler with mass concentration of 22% after uniformly mixing the light calcium and the titanium dioxide; a portion of the filler was added to the pulper and another portion was added in the flow system using QCS system to adjust ash value retention to 22%;
(2) Adding 16 kg/ton of cationic starch into a pipeline between a pulping tank and a pre-pulping tank;
(3) Adding AKD 12 kg/ton pulp and food grade wet strength agent 14 kg/ton pulp into the inlet of a pulp flushing pump;
(4) 280g of cationic retention aid per ton of pulp is added into a pipeline between a pulp flushing pump and a pressure screen;
(5) 280g of anionic retention aid per ton of pulp was added to the pipe between the pressure screen and the headbox.
4. The main parameters of the paper machine are as follows:
(1) The vehicle speed is 490m/min;
(2) The steam pressure of the big cylinder is 500kPa, the air temperature of the wet end of the big cylinder gas hood is 255 ℃, the air temperature of the dry end is 255 ℃, and the dryness of the big cylinder is 95%;
(3) A calender is not used.
The pipette tip wrappers prepared in examples 1-3 and commercially available pipette tip wrappers were tested and the comparative results are shown in Table 1.
TABLE 1 test results of straw wrapper performance
| Project | Tightness g/cm 3 | Wet tensile N/15mm | Tensile strength kN/m | Opacity% | Air permeability um/Pa.s | Front smoothness S | Gloss% |
| Commercial paper pattern | 0.84 | 6 | 1.4 | 67.28 | 4.6 | 176 | 7.6 |
| Example 1 | 0.79 | 8 | 1.6 | 73.89 | 2.4 | 436 | 11.4 |
| Example 2 | 0.78 | 8 | 1.6 | 75.34 | 2.2 | 465 | 11.7 |
| Example 3 | 0.78 | 8.5 | 1.7 | 74.47 | 2.5 | 448 | 12.1 |
As can be seen from comparison, the wet tensile force and the tensile strength of the packaging paper produced by the invention are obviously increased, the physical strength of the paper is not easy to break, the tightness is reduced, the opacity is greatly improved under the condition of reduced air permeability, the requirement of high hiding rate is met, and the front smoothness and the glossiness are increased, so that the printing of a downstream customer is more vivid and bright.
The method comprises the following steps: (national standard of detection project)
1. Tightness degree: the calculation formula is tightness=quantitative/thickness (quantitative: GB/T451.2-2002 thickness: GB/T451.3-2002)
2. Wet tensile force: GB/T465.2-2008
3. Tensile strength: GB/T12914-2008
4. Opacity GB/T1543-2005
5. Air permeability: GB/T458-2008
6. Smoothness: GB/T456-2002
7. Gloss level: GB/T8941-2013
Claims (10)
1. A method for producing straw packaging 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, vat, coiling part, rewinding, packaging and warehousing.
2. The method for producing straw wrapper by using a fourdrinier vat machine according to claim 1, wherein: the pulp board proportion is 100% bleached Indonesia sulfate hardwood pulp.
3. The method for producing straw wrapper 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 60-64 DEG SR, and the wet weight is 1.5-2.0g.
4. The method for producing straw wrapper by using a fourdrinier vat machine according to claim 1, wherein: adding direct suntan and filler into a pulper, mixing and pulping with the pulp, wherein the direct suntan adding amount is 30-50 g/ton pulp, and the filler adding amount is 180-230 kg/ton pulp.
5. The method for producing straw wrapper by using a fourdrinier vat machine according to claim 4, wherein: the preparation method of the filler comprises the following steps: 65-70% of light calcium carbonate and 30-35% of titanium dioxide, and adding water to prepare the filler with the mass concentration of 22% after uniformly mixing the light calcium carbonate and the titanium dioxide.
6. The method for producing straw wrapper by using a fourdrinier vat machine according to claim 1, wherein: 8-16kg of cationic starch per ton of pulp is added into a pipeline between the pulping pool and the pre-papermaking pool.
7. The method for producing straw wrapper by using a fourdrinier vat machine according to claim 1, wherein: AKD 8-12 kg/ton pulp and food grade wet strength agent 8-15 kg/ton pulp are added at the inlet of the pulp flushing pump.
8. The method for producing straw wrapper by using a fourdrinier vat machine according to claim 1, wherein: and adding 200-300g of cationic retention aid per ton of pulp into a pipeline between the pulp flushing pump and the pressure screen.
9. The method for producing straw wrapper by using a fourdrinier vat machine according to claim 1, wherein: 200-300g of anionic retention aid per ton of pulp is added to the pipeline between the pressure screen and the headbox.
10. The method for producing straw wrapper by using a fourdrinier vat machine according to claim 1, wherein: paper machine operating parameters: the speed of the vehicle is 450-550m/min, the steam pressure of the big cylinder is 500-550kPa, the air temperature of the wet end of the big cylinder air cover is 220-280 ℃, the dry end is 220-280 ℃, and the dryness of the big cylinder is 94-96%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310130345.8A CN116043609A (en) | 2023-02-17 | 2023-02-17 | Method for producing straw packaging paper by using fourdrinier vat paper machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310130345.8A CN116043609A (en) | 2023-02-17 | 2023-02-17 | Method for producing straw packaging paper by using fourdrinier vat paper machine |
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| CN202310130345.8A Pending CN116043609A (en) | 2023-02-17 | 2023-02-17 | Method for producing straw packaging paper by using fourdrinier vat paper machine |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472198A (en) * | 2019-01-23 | 2020-07-31 | 金华盛纸业（苏州工业园区）有限公司 | Method for manufacturing straw base paper, straw base paper and paper straw |
| CN112941964A (en) * | 2021-04-08 | 2021-06-11 | 山东仁丰特种材料股份有限公司 | Method for producing heat-sensitive base paper by fourdrinier vat paper machine |
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| CN113089362A (en) * | 2021-04-08 | 2021-07-09 | 山东仁丰特种材料股份有限公司 | Method for producing wine label base paper by fourdrinier vat paper machine |
| CN114790666A (en) * | 2022-04-15 | 2022-07-26 | 山东仁丰特种材料股份有限公司 | High-stiffness straw base paper and preparation method thereof |
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