CN108277695B - Method for manufacturing frosted base paper - Google Patents
Method for manufacturing frosted base paper Download PDFInfo
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- CN108277695B CN108277695B CN201810304836.9A CN201810304836A CN108277695B CN 108277695 B CN108277695 B CN 108277695B CN 201810304836 A CN201810304836 A CN 201810304836A CN 108277695 B CN108277695 B CN 108277695B
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- paper
- sizing
- wood chips
- base paper
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
- B24D11/02—Backings, e.g. foils, webs, mesh fabrics
-
- 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
- D21D1/22—Jordans
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical 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
- 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
- D21H19/80—Paper comprising more than one coating
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
-
- 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
Abstract
The invention discloses a method for manufacturing frosted base paper, which comprises the process steps of firstly mixing coniferous wood chips and broadleaf wood chips, then pulping, preparing pulp and adding auxiliary materials, manufacturing wet paper pages, pre-drying, coating and sizing, post-drying and the like. The frosted base paper prepared by the method has the advantages of high product quality, high mechanical property index, stable thickness, good paper evenness and good ink fixation performance, and can meet the quality requirements of customers.
Description
Technical Field
The invention relates to a manufacturing method of frosted base paper, belonging to the technical field of papermaking.
Background
The frosted base paper is used for making various dry-grinding sand papers. The surface of the abrasive base paper needs to be coated with a layer of carborundum with fine and uniform granularity, and the carborundum is dried and cut to prepare the abrasive paper. The frosted base paper has requirements on quality indexes such as strength, wet strength, transverse shrinkage, bursting strength, tearing strength, water absorption, ink absorption, oil resistance and the like, domestic manufacturers mostly adopt softwood and hardwood to respectively pulp, prepare pulp and mix and then manufacture paper, but due to the structure and proportion of the pulp, the use of chemical additives, production process technology and the like, the mechanical performance indexes such as product quality and the like are low, and the quality requirements of the manufacture of various grades of sand paper cannot be met. At present, high-quality sand paper has great use in the aspects of vehicles, mechanical manufacturing, precise instruments, plastic products, furniture decoration and the like, but the prior market in China can provide little base paper for manufacturing the sand paper. The Yueyang forest paper company Limited successfully develops high-grade frosted base paper through long-time test research, communication with client communication technology for many times, summarization, detection and analysis of test data.
The process flow for processing the abrasive base paper into the sand paper comprises the following steps: base paper, trademark printing, dipping, drying, sanding oil, sand planting, drying, primary glue coating, drying, secondary glue coating, drying, slitting, cutting, curing and humidifying.
The main quality indexes of the frosted base paper comprise: strength, wet strength, transverse shrinkage, burst strength, tear strength, water absorption, ink absorbency, oil resistance, uniformity, and the like.
Disclosure of Invention
The invention aims to provide a method for manufacturing a frosted base paper with high mechanical performance indexes such as product quality and the like.
The technical scheme of the invention is as follows: a method for manufacturing frosted base paper comprises the process steps of firstly mixing coniferous wood chips and broadleaf wood chips for repulping, then pulping, preparing pulp and adding auxiliary materials, papermaking of wet paper, pre-drying, coating and sizing, post-drying and the like, and is characterized in that:
(1) the pulping adopts the micro-bleaching pulping technology, and the pulp mixture ratio is 40 +/-1 percent of broad and miscellaneous wood chips in terms of the weight ratio of the wood chips before mixing: 60 plus or minus 1 percent of fraxinus pine wood chips;
(2) pulping is a conical grinding process, and the pulping degree of mixed pulp is as follows: 30-35 ℃ SR, and the wet weight is 7-9 g;
(3) the dosage of the auxiliary materials to the oven-dried pulp is as follows: (a) 0.5-1.0% of AKD by weight; (b) the weight ratio of the retention aid is 0.02-0.04%; (c) the cationic starch is 0.8-1.0% by weight (d) of filler is talcum powder, and the addition amount is controlled according to 10% of ash content;
(4) a glue application part: surface sizing adopts film transfer surface sizing, and the surface sizing adopts oil-proof agent, printing ink fixing agent and sizing starch; the type of the metering rod: 1#, gauge bar pressure 100 kPa; applying glue on both surfaces, and controlling the single surface at 2.5-3.0 g/m2Paper tension 220N/m before glue applying part2Post-sizing section sheet tension of 200N/m2；
(5) Other parameters of the paper machine are as follows: the net speed is 400m/min, the dewatering amount of the top net is 27%, the opening of a lip plate of a head box is 9.7mm, and the first line pressing pressure is as follows: 900 kN/m, two-line pressure: 900 kN/m; crimp tension: 400 kN/m;
(6) calendering conditions are as follows: the calender is closed, slight pressurization is carried out according to smoothness indexes, and the linear pressure is 30-40 kN/m;
(7) quantifying frosted base paper: 115 +/-2 g/m24.0-6.0% of water, natural hue, longitudinal fracture length more than or equal to 8.0km and water absorbability of 70-120g/m2Tightness degree is less than or equal to 0.75g/cm3The air permeability is less than or equal to 5mL/min, the transverse expansion rate is less than or equal to 3.0 percent, the tearing strength is more than or equal to 1200mN, the bursting strength is more than or equal to 400kPa, the average value of the smoothness is 5-10s, the oil resistance level is more than 7, the thickness is stable, the paper evenness is good, and the ink fixation performance is good.
The boiling method of the surface glue comprises the following steps: dissolving and preparing sizing starch according to a normal boiling process, respectively adding an oil-proof agent and an ink fixing agent after the preparation is finished, stirring for 10 minutes until the mixture is uniformly mixed, putting the mixture into a storage barrel for later use, and ensuring that the using amount of the oil-proof agent per ton of paper is controlled to be about 10kg and the using amount of the ink fixing agent is controlled to be about 5kg, wherein the final concentration is about 12%.
The invention researches the selection of wood chip types, groping of wood chip mixing pulping process with different weight ratios, pulping process, functional chemical additives added in pulp, and the like, adopts film transfer surface sizing treatment (researching latest sizing formula and technology), executes the treatment by referring to relevant paper machine parameters, produces qualified abrasive base paper, and has important significance for optimizing product structure and improving profit capacity of companies.
The frosted base paper developed by the application has the main research and innovation points that ⑴ starts with raw material selection and formula, the raw materials are mixed firstly, then the novel process technology of micro-bleaching pulping is adopted, and the conical grinding and pulping process is adopted, and the method specifically comprises the steps of ① researching the structure of the raw materials (wood chips), fully and physically stirring and mixing the broad miscellaneous wood chips and the edgewise piny wood chips in a bin, the proportioning is based on the multiple laboratory research of the wood chip formula and the detection and analysis result of the quality data of the shoveling sheets, the optimal formula is finally determined to be 40% of the broad miscellaneous wood chips and 60% of the edgewise piny wood chips (weight ratio), ② researching the pulping and pulping process, wherein the raw materials are selected according to the quality ofThe particularity of the amount requirement, the mixed wood chip cooking and pulping bleaching process (adopting H) is deeply researched2O2Bleaching technology, controlling the ISO whiteness of the pulp at 20-23 ℃; through laboratory pulp cooking and pulping process research, a reasonable pulping parameter control range (wet weight 7-9 g, pulping degree 30-35) is determined0SR) and finally the quality data of the paper patterns obtained by sheet making are all very good, ⑵ researches a surface sizing process and technology, adopts a new surface sizing formula, and is oil-proof agent, ink fixing agent and sizing starch, thereby better solving the special requirements of customers on quality, ensuring the final finished product sand paper printing trademark to be clear and resistant to oil corrosion, ⑶ product structure transformation innovation, improving the profit capacity of enterprises, and the gross profit rate of the base paper of the abrasive paper is obviously higher than that of the existing products of the machine, and the product has good market prospect and is a new special paper product worthy of development.
The frosted base paper product prepared by the invention is used by a plurality of customers and has the advantages of high quality, high mechanical property index, stable thickness, good paper evenness, good ink fixation performance, good strength, small transverse shrinkage (small processing deformation), proper bursting strength, proper water absorption, good ink absorption performance, good oil resistance and the like, and can meet the quality requirements of the customers.
Detailed Description
The invention is further illustrated by the following examples.
The invention takes 115 g of frosted base paper as an example,
mixing 40% of broad wood chips: mixing 60 percent of coastal pine wood chips in a bin according to the weight ratio, uniformly mixing, and controlling the ISO whiteness of unbleached pulp at 20-23 ℃ by adopting a chemical pulping method and an H2O2 micro-bleaching pulping technology; then pulping the mixed pulp by serially connecting three conical mills, wherein the pulping degree is 33-35 ℃ SR, and the wet weight is 7-9 g; 5-10 kg/ton paper AKD sizing agent, 8-10 kg/ton cationic starch in paper pulp, 0.2-0.4 kg/ton paper retention aid and talcum powder are added through a sizing system to prepare diluted pulp to be screened, double-sided dehydration is carried out through lapping to ensure that fibers are uniformly dispersed, and longitudinal and transverse fibers are orderly and uniformly distributed, and wet paper enters a pressing part for compound pressing; intoThe paper sheet dried to 95% dryness enters a sizing part, and surface sizing treatment is carried out on the paper sheet by adopting a film transfer mode (the formula of the surface sizing process comprises an oil-proof agent, an ink fixing agent and sizing starch); controlling the single-side glue application amount to be 2.5-3.0 g/square, and drying the treated wet paper; after post-drying treatment, the paper with the dryness of 94-96% passes through a calender (suitable pressurization), and then the paper is coiled to obtain the paper with the quantitative of 115 g/m2A frosted base paper is produced by grinding a base paper,
the main indexes are as follows: water content of 4.0-6.0%, natural hue, longitudinal fracture length of not less than 8.0km, and water absorption of 70-120g/m2) Tightness (less than or equal to 0.75 g/cm)3) The printing ink has the advantages of air permeability (less than or equal to 5 mL/min), transverse expansion rate (less than or equal to 3.0%), tearing strength (more than or equal to 1200mN), breaking resistance (more than or equal to 400kPa), smoothness (average value is 5-10 s), oil resistance grade (more than 7 grade), stable thickness, good paper evenness and good ink fixation performance. The qualified abrasive base paper can be produced according to the process, and the quality requirements of customers can be completely met.
Claims (2)
1. A method for manufacturing frosted base paper comprises the steps of firstly mixing coniferous wood chips and broadleaf wood chips, then pulping, preparing pulp and adding auxiliary materials, manufacturing wet paper pages, pre-drying, coating and sizing, and post-drying, and is characterized in that:
(1) the pulping adopts the micro-bleaching pulping technology, and the pulp is prepared by mixing wood chips in a weight ratio of =40 +/-1% of broad wood chips before mixing: 60 plus or minus 1 percent of fraxinus pine wood chips;
(2) beating degree of the mixed slurry: 30-35 ℃ SR, and the wet weight is 7-9 g;
(3) the dosage of the auxiliary materials to the oven-dried pulp is as follows: (a) 0.5-1.0% of AKD by weight; (b) the weight ratio of the retention aid is 0.02-0.04%; (c) the cationic starch is 0.8-1.0% by weight (d) of filler is talcum powder, and the addition amount is controlled according to 10% of ash content;
(4) a glue application part: surface sizing adopts film transfer surface sizing, and the surface sizing formula comprises an oil-proof agent, an ink fixing agent and sizing starch; the type of the metering rod: 1#, gauge bar pressure 100 kPa; applying glue on both surfaces, and controlling the single surface at 2.5-3.0 g/m2Paper tension before the size application section 220N/m2Post-sizing section sheet tension of 200N/m2；
(5) Other parameters of the paper machine are as follows: the net speed is 400m/min, the dewatering amount of the top net is 27%, the opening of a lip plate of a head box is 9.7mm, and the first line pressing pressure is as follows: 900 kN/m, two-line pressure: 900 kN/m; crimp tension: 400 kN/m;
(6) calendering conditions are as follows: the calender is closed, slight pressurization is carried out according to smoothness indexes, and the linear pressure is 30-40 kN/m;
(7) quantifying frosted base paper: 115 +/-2 g/m24.0-6.0% of water, natural hue, longitudinal fracture length more than or equal to 8.0km and water absorbability of 70-120g/m2Tightness degree is less than or equal to 0.75g/cm3The air permeability is less than or equal to 5mL/min, the transverse expansion rate is less than or equal to 3.0 percent, the tearing strength is more than or equal to 1200mN, the bursting strength is more than or equal to 400kPa, the average value of the smoothness is 5-10s, the oil resistance level is more than 7, the thickness is stable, the paper evenness is good, and the ink fixation performance is good.
2. The method for producing a matte base paper according to claim 1, wherein: the boiling method of the surface glue comprises the following steps: dissolving and preparing sizing starch according to a normal boiling process, respectively adding an oil-proof agent and an ink fixing agent after the preparation is finished, stirring for 10 minutes until the mixture is uniformly mixed, putting the mixture into a storage barrel for later use, and controlling the final concentration to be 12 percent, so that the dosage of the oil-proof agent per ton of paper is controlled to be 10kg, and the dosage of the ink fixing agent is controlled to be 5 kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810304836.9A CN108277695B (en) | 2018-04-08 | 2018-04-08 | Method for manufacturing frosted base paper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810304836.9A CN108277695B (en) | 2018-04-08 | 2018-04-08 | Method for manufacturing frosted base paper |
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| CN108277695A CN108277695A (en) | 2018-07-13 |
| CN108277695B true CN108277695B (en) | 2020-06-12 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109183487B (en) * | 2018-08-08 | 2020-09-11 | 岳阳林纸股份有限公司 | Method for making salt packaging paper |
| CN109537359A (en) * | 2018-11-30 | 2019-03-29 | 浙江金昌特种纸股份有限公司 | A kind of preparation method of high grease resistance abrasive base paper |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010069627A1 (en) * | 2008-12-18 | 2010-06-24 | Voith Patent Gmbh | Method for producing a fibrous material web |
| CN102154899A (en) * | 2011-04-28 | 2011-08-17 | 永州湘江纸业有限责任公司 | Base paper of sandpaper and production method thereof |
| CN102733247A (en) * | 2012-07-11 | 2012-10-17 | 岳阳林纸股份有限公司 | Method for making digital inkjet printing paper by using high-speed rotary printing machine |
| CN103911899A (en) * | 2014-03-20 | 2014-07-09 | 杭州特种纸业有限公司 | Latex sand paper raw paper |
-
2018
- 2018-04-08 CN CN201810304836.9A patent/CN108277695B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010069627A1 (en) * | 2008-12-18 | 2010-06-24 | Voith Patent Gmbh | Method for producing a fibrous material web |
| CN102154899A (en) * | 2011-04-28 | 2011-08-17 | 永州湘江纸业有限责任公司 | Base paper of sandpaper and production method thereof |
| CN102733247A (en) * | 2012-07-11 | 2012-10-17 | 岳阳林纸股份有限公司 | Method for making digital inkjet printing paper by using high-speed rotary printing machine |
| CN103911899A (en) * | 2014-03-20 | 2014-07-09 | 杭州特种纸业有限公司 | Latex sand paper raw paper |
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