CN103711023B - The method of superelevation dense refining process productive life paper using - Google Patents
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Abstract
The present invention relates to a kind of papermaking process, it is particularly the method for main material production paper for daily use with bagasse, its technical scheme is for main raw material(s) with high mixture ratio cane syrup and a small amount of wood pulp, adopt the dense refining process technology of superelevation, after pulp washing, paper pulp is first made into the concentration of wet weight 40-60%, re-use the dense paste mill grinding of superelevation, adopt full-automatic beating simultaneously, pulping process automatic control system with slurry, use suitable auxiliary material, regulate pulp density before and after each equipment, and adopt high speed hot blast to penetrate page technology, improve bagasse paper tightness excessive, the defect that bulking intensity is not enough and infiltration rate is slow.
Description
Technical field
The present invention relates to a kind of papermaking process, is particularly the method for main material production paper for daily use, particularly roll web with bagasse.
Background technology
Paper for daily use kind is in the market more, comprises roll web, face tissue, tissue etc., and the type adopted due to each producer is different, raw material are different, technology is different, and the product quality of producing is uneven, but really can make completely satisfied insufficient of consumer, paper for daily use requires soft, good water absorption, have higher dry, wet strength, and country not yet puts into effect to the QUALITY STANDARD of roll web, the QUALITY STANDARD that the many uses of each enterprise are made by oneself, technical indicator is both nonstandard not comprehensive yet.
The domestic production about face paper for daily use has some pertinent literatures report, such as:
1, Chinese patent, title: utilize bagasse to manufacture paper with pulp the method and apparatus of high life paper using for raw pulp, Application Number (patent): the CN02115401.5 applying date: 2002.01.01 open (bulletin) number: CN1370888 open (bulletin) day: 2002.09.25, application (patent right) people: Guitang (Group) Co Ltd, Guangxi, address: happiness No. 100, road, Guigang, Guangxi Zhuang Autonomous Region, invention (design) people: Yang Herong, Yang Wanshan, agriculture is white, Chen Jian, Lv Yuedong, Yang Yi, Li Zeen, patent agency: Guangxi Nanning Gongping Patent Agency Co., Ltd., agent: carry out light industry, summary: a kind of to make bleaching bagasse pulp by oneself for main raw material, be equipped with a small amount of wood pulp, in manufacturing paper with pulp, the method and apparatus of fine tissue, its method is by wood pulp and bagasse pulp pulping respectively, discongest with defibrination after deliver to double-layer headbox on high speed paper machine, wood pulp is made to be attached on the casing wall of format roll on high speed paper machine, and bagasse pulp is attached to above wood pulp, rapid draing again through efficient hot-air obtains product, paper machine adopts double-layer headbox structure, single suction press roll, raise a gram drying cylinder, efficient hot-air gas hood, the toilet paper quality of manufacturing paper with pulp out is good, feel is fine and smooth, product quality is close to the quality of the toilet paper produced with whole wood pulp, and almost not sticky cylinder and breakage phenomena occur in production process.Principal claim: 1, a kind of bagasse that utilizes to be manufactured paper with pulp the method for high life paper using for raw pulp, it is characterized in that: by wood pulp and bagasse pulp respectively pulping, discongest with defibrination after deliver to double-layer headbox on high speed paper machine, wood pulp is made to be attached on the casing wall of format roll on high speed paper machine, and bagasse pulp is attached to above wood pulp, rapid draing again through efficient hot-air obtains product, wherein stick to wood pulp on paper machine format roll cylinder face and account for 20-50%, the bagasse pulp being attached to wood pulp surface is 50-80%.
2, Chinese patent, title: a kind of method of producing tissue, Application Number (patent): CN201210430241.0, open (bulletin) number: CN102912676A open (bulletin) day: 2013.02.06, application (patent right) people: Quanzhou Huaxiang Paper Co., Ltd., address: Jinjiang City of Quanzhou City of Fujian Province borders on industrial area, town in the west, invention (design) people: Chen Changxing, summary: a kind of method of producing tissue, 70%-80% bleaching needle-point leaf pulp and 20%-30% straw pulp is selected to make raw material, through pulper pulping, disc grinder is pulled an oar, add auxiliary material swelling agent, after softener and wet strength agent, shaping in Ha Bashi long mesh paper making machine system, dehydration, after squeezing, it is wrinkling in creping cylinder when wet web dryness is 30-45%, the angle of creping blade and cylinder face tangent line is 20-30 °, scraper is 60-85 ° in the basil in subsides cylinder face, then, drier through heated drying cylinder the velocity ratio of creping cylinder and heated drying cylinder is 1.15-1.18:1, batches, after rewind slitting product.Its beneficial effect Selects and Applies wet crepe explained hereafter tissue by fiber species and ratio, the tissue produced has tensile strength and suitable air permeability, its intensity, wet strength, hydrophobicity, gas permeability, pliability etc. all reach higher standard, and matter high price is low.
3, Chinese patent, title: technology for making hand tissue, Application Number (patent): CN01109815.5, open (bulletin) number: CN1306124, open (bulletin) day: 2001.08.01, application (patent right) people: Zhang Guoxing, address: No. 2, Jianshe Road, economic development zone, large Shatian, Guangxi Zhuang Autonomous Region Nanning City, invention (design) people: Zhang Guoxing, a kind of technology for making hand tissue, raw material is made up of major ingredient and auxiliary material, major ingredient is bleaching long fiber wood pulp and bleached chemical bagasse pulp, auxiliary material is by wet strength agent polyamine epichlorohydrin resin (PPE), softener alkyl ketene dimer and dispersant hydrolyzed polyacrylamide (PHPR200) composition, by weight each component ratio be: long fibrillation wood pulp 5-25% bleached by major ingredient, bleached chemical bagasse pulp 95-75%, auxiliary material wet strength agent polyamine epichlorohydrin resin (PPE) 0.5-2%, softener alkyl ketene dimer 0.3-1.2%, dispersant is polyethylene glycol oxide (PEO) 0.05-0.25% or hydrolysising polyethylene propylamine (PHPR200) 0.07-0.3%, its production procedure is: bleached chemical long fiber wood pulp and bleached chemical bagasse pulp are also thickened in stock tank respectively through hydrabrusher pulping respectively, after fiberizer respectively defibrination, enter respectively kowtow rear stock tank and be pumped into carry out in identical stock proportioner with slurry, flow into pond with slurry and be pumped into machine chest again, auxiliary material swelling agent is added in machine chest, softener and wet strength agent, be sent to web part of paper machine, now add auxiliary material dispersant, web part of paper machine is formed l Water Paper drying portion, wrinkling, reeling end, after processing department, outbound gets product.
Above-mentioned open source literature reports the production method of paper for daily use from different perspectives, but it is few to produce wood pulp content, outward appearance is good, toughness is strong, cost is low and meet the roll web of sanitary standard, except adopting suitable technique according to different raw materials, the proportioning of such as starching, defibrination process, the auxiliary material coordinated, starching speed, also will according to the suitable equipment of process selection, and accomplish this point, it is desirable that carry out many explorations in long-term production practices, because the condition in actual production and laboratory can not compared with, again in production environment from theory to laboratory, also to make a lot of performing creative labour, so different technique will be studied according to adopted raw material in different paper mills, also to improve the equipment bought and use.
Summary of the invention
The object of this invention is to provide a kind of with the cane syrup of high mixture ratio with select that applicable device fabrication goes out soft fluffy, toughness is strong, cost is low and meet the paper for daily use of sanitary standard.
The method of superelevation of the present invention dense refining process productive life paper using, is characterized in that: the processing step comprising the preparation of paper pulp, pulp washing, desanding, defibrination, copy paper, drying, stamp and rolling, is characterized in adopting following technical scheme:
(1) with high mixture ratio cane syrup and a small amount of wood pulp for main raw material(s), cane syrup: wood pulp is 75-85:15-25;
(2) after pulp washing, paper pulp is first made into the concentration of wet weight 40-60%, re-uses the dense paste mill grinding of superelevation;
(3) adopt full-automatic to beat, pulping process automatic control system with slurry;
(4) auxiliary material comprises wet strength agent polyamine epichlorohydrin resin, softener alkyl ketene dimer and dispersant hydrolyzed polyacrylamide; Wherein wet strength agent polyamine epichlorohydrin resin accounts for the 1-5% of oven dry stock weight content, and softener alkyl ketene dimer accounts for the 1-3% of oven dry stock weight content; Dispersant hydrolyzed polyacrylamide accounts for the 2-6% of oven dry stock weight content;
(5) pulp density before and after each equipment is regulated; Use HTDQ-N type slurry concentration automatic monitoring instrument to the paper before and after distinct device, concentration.
(6) high speed hot blast is adopted to penetrate page technology.
Above-described super high-density paste mill, adopts the DFH high-concentration energy-saving pulping machine that Dongfang Light Industry Machinery Co., Ltd., Dandong produces, address: Dandong City of Liaoning Province prospers together No. 69, Long Xing street, town, network address: http://dddfqgjx.cn.Make defibrination
Above-described full-automation is beaten, pulping process automatic control system with slurry adopts paper pulp moisture teller, is transferred to computer, analyzes the amount of water of data autocontrol valve according to pulp density.
In above-described (5) step, comprise the adjustment to pulp density in feed pipe for mortar between machine chest to slurry-stablizing case, stablize pulp density, stablize blowing amount; Slurry concentration before observing and controlling disc mill, to improve quality and the yield of beater; Observing and controlling is used for the slurry concentration before three sections of tower drifts; The concentration of slurry in observing and controlling slip house slurry transferring to machine room process; Observing and controlling slurry mixing melting process, stablizes ratio with slurry.
In above-described (6) step, the hot blast temperature adopting high speed hot blast to penetrate page technique is 250-350 DEG C.
The invention has the beneficial effects as follows:
1, the raw material of productive life paper using, particularly roll web is very extensive, and current bibliographical information mainly contains Original Pulp, Straw Pulp, reed pulp, bagasse pulp, waste paper etc.The kind of slurry determines the class of product to a great extent.To different raw materials, rational fibre furnish and process conditions to be designed targetedly.The present invention adopts high mixture ratio cane syrup and a small amount of wood pulp to be main raw material(s), cane syrup: wood pulp is 75-85:15-25; The roll web paper obtained is clean, and wrinkle is clear, moderate, and fiber dispersion is even, and dry tensile strength, wet tensile (strength) are all higher, and paper is clean, is relatively applicable to high-end market.
2, after pulp washing, paper pulp is first made into the concentration of wet weight 40-60%, re-uses the dense paste mill grinding of superelevation; Paper pulp is ground better.
3, adopt full-automatic to beat, pulping process automatic control system with slurry more accurately can control pulp density.
4, auxiliary material comprises wet strength agent polyamine epichlorohydrin resin, softener alkyl ketene dimer and dispersant hydrolyzed polyacrylamide; Wherein wet strength agent polyamine epichlorohydrin resin accounts for the 1-5% of oven dry stock weight content, and softener alkyl ketene dimer accounts for the 1-3% of oven dry stock weight content; Dispersant hydrolyzed polyacrylamide accounts for the 2-6% of oven dry stock weight content; More soft to roll web.
5, pulp density before and after each equipment is regulated.Adopt instrument to carry out measurement concentration, such as, use HTDQ-N type slurry concentration automatic monitoring instrument (international No. 1 building of Jiaozuo City Jia Long) to the pulp density before and after distinct device.Regulate pulp density in time after observing and controlling, ensure each position flow velocity and starching evenly, paper machine work is just very normal, and product quality is also greatly enhanced, and percent defective was reduced to less than 0.5% by 5% of the past.
6, the present invention adopts high speed hot blast to penetrate page technology, improves bagasse paper tightness excessive, the defect that bulking intensity is not enough and infiltration rate is slow.Adopt hot blast impingement drying (TAD) that hot-air is forced through page, roll web is made to have comparatively high bulk and flexibility, higher bulkiness, can select the surface structure of face tissue-it makes the durability of fiber better, makes lower quantitative facial tissue product have higher water imbibition.
Detailed description of the invention
Embodiment 1
Adopt weight content cane syrup: wood pulp is the proportioning of 75:25, adopts five road desanding, and (1) establishes one macropore gauze before pulp washing case, except coarse sand; (2) before defibrination, sand removing machine is installed, except medium sand; (3) one mesopore gauze is established after defibrination; (4) before entering stuff box, sand trap is established; (5) one aperture gauze is established, except fine sand in the head box bottom of paper machine; Adopt the fourdrinier wire major diameter twin-tub copy paper easy control of temperature of 3.66 meters again, can improve the quality of products.Use HTDQ-N type slurry concentration automatic monitoring instrument to the paper before and after distinct device, concentration.Pulp density is regulated in time after observing and controlling, ensure each position flow velocity and starching even, pull an oar with flexible wire-dividing broom purification again, fiber is made to have wire-dividing broom purification to a certain degree, then high speed hot blast is adopted to penetrate page technology, hot blast temperature 250 DEG C, makes to produce comparatively high bulk and flexibility, the roll web of higher bulkiness.
The auxiliary material that above paper pulp adds comprises wet strength agent polyamine epichlorohydrin resin, softener alkyl ketene dimer and dispersant hydrolyzed polyacrylamide; Wherein wet strength agent polyamine epichlorohydrin resin accounts for 1% of oven dry stock weight content, and softener alkyl ketene dimer accounts for 1% of oven dry stock weight content; Dispersant hydrolyzed polyacrylamide accounts for 2% of oven dry stock weight content.
Embodiment 2
1, weight content cane syrup is adopted: wood pulp is the proportioning of 85:15, adopts five road desanding, and (1) establishes one macropore gauze before pulp washing case, except coarse sand; (2) before defibrination, sand removing machine is installed, except medium sand; (3) one mesopore gauze is established after defibrination; (4) before entering stuff box, sand trap is established; (5) one aperture gauze is established, except fine sand in the head box bottom of paper machine; Adopt the fourdrinier wire major diameter twin-tub copy paper easy control of temperature of 3.66 meters again, can improve the quality of products.Use HTDQ-N type slurry concentration automatic monitoring instrument to the paper before and after distinct device, concentration.Pulp density is regulated in time after observing and controlling, ensure each position flow velocity and starching even, pull an oar with flexible wire-dividing broom purification again, fiber is made to have wire-dividing broom purification to a certain degree, then high speed hot blast is adopted to penetrate page technology, hot blast temperature 300 DEG C, makes to produce comparatively high bulk and flexibility, the roll web of higher bulkiness.
The auxiliary material that above paper pulp adds comprises wet strength agent polyamine epichlorohydrin resin, softener alkyl ketene dimer and dispersant hydrolyzed polyacrylamide; Wherein wet strength agent polyamine epichlorohydrin resin accounts for 3% of oven dry stock weight content, and softener alkyl ketene dimer accounts for 2% of oven dry stock weight content; Dispersant hydrolyzed polyacrylamide accounts for 4% of oven dry stock weight content.
Embodiment 3
1, weight content cane syrup is adopted: wood pulp is the proportioning of 80:20, adopts five road desanding, and (1) establishes one macropore gauze before pulp washing case, except coarse sand; (2) before defibrination, sand removing machine is installed, except medium sand; (3) one mesopore gauze is established after defibrination; (4) before entering stuff box, sand trap is established; (5) one aperture gauze is established, except fine sand in the head box bottom of paper machine; Adopt the fourdrinier wire major diameter twin-tub copy paper easy control of temperature of 3.66 meters again, can improve the quality of products.Use HTDQ-N type slurry concentration automatic monitoring instrument to the paper before and after distinct device, concentration.Pulp density is regulated in time after observing and controlling, ensure each position flow velocity and starching even, pull an oar with flexible wire-dividing broom purification again, fiber is made to have wire-dividing broom purification to a certain degree, then high speed hot blast is adopted to penetrate page technology, hot blast temperature 350 DEG C, makes to produce comparatively high bulk and flexibility, the roll web of higher bulkiness.
The auxiliary material that above paper pulp adds comprises wet strength agent polyamine epichlorohydrin resin, softener alkyl ketene dimer and dispersant hydrolyzed polyacrylamide; Wherein wet strength agent polyamine epichlorohydrin resin accounts for 5% of oven dry stock weight content, and softener alkyl ketene dimer accounts for 3% of oven dry stock weight content; Dispersant hydrolyzed polyacrylamide accounts for 6% of oven dry stock weight content.
The present invention transforms technique and paper machine in December, 2012, and adopt new technology and new equipment production roll web, the quality comparation obtained is as follows:
Transform front 1, adopt three road sand removing processs, 2, adopt normal mill; (4) before and after each equipment, pulp density is substantially identical; (5) common beating process; (6) high speed hot blast is not adopted to penetrate page technique.
1, five road sand removing processs are adopted, 2, paper pulp is first made into the concentration of wet weight 40-60% after pulp washing, re-uses the dense paste mill grinding of superelevation after transformation; 3, adopt full-automatic to beat, pulping process automatic control system with slurry, 4, employing high speed hot blast penetrates page technique.
Table 1 transforms front and back roll web quality comparation for the present invention
Claims (2)
1. a method for superelevation dense refining process productive life paper using, is characterized in that: be made up of the processing step of the preparation of paper pulp, pulp washing, desanding, defibrination, copy paper, drying, stamp and rolling, wherein:
(1) with high mixture ratio cane syrup and a small amount of wood pulp for main raw material(s), cane syrup: wood pulp is 75-85:15-25;
(2) after pulp washing, paper pulp is first made into the concentration of wet weight 40-60%, re-uses the dense paste mill grinding of superelevation;
(3) adopt full-automatic to beat, pulping process automatic control system with slurry;
(4) auxiliary material comprises wet strength agent polyamine epichlorohydrin resin, softener alkyl ketene dimer and dispersant hydrolyzed polyacrylamide; Wherein wet strength agent polyamine epichlorohydrin resin accounts for the 1-5% of oven dry stock weight content, and softener alkyl ketene dimer accounts for the 1-3% of oven dry stock weight content; Dispersant hydrolyzed polyacrylamide accounts for the 2-6% of oven dry stock weight content;
(5) pulp density before and after each equipment is regulated;
(6) high speed hot blast is adopted to penetrate page technology;
In (5) step, comprise the adjustment to pulp density in feed pipe for mortar between machine chest to slurry-stablizing case, stablize pulp density, stablize blowing amount; Slurry concentration before observing and controlling disc mill, to improve quality and the yield of beater; Observing and controlling is used for the slurry concentration before three sections of tower drifts; The concentration of slurry in observing and controlling slip house slurry transferring to machine room process; Observing and controlling slurry mixing melting process, stablizes ratio with slurry;
In (6) step, the hot blast temperature adopting high speed hot blast to penetrate page technique is 250-350 DEG C;
In addition, adopt five road desanding, before pulp washing case, establish one macropore gauze, except coarse sand; Before defibrination, sand removing machine is installed, except medium sand; One mesopore gauze is established after defibrination; Sand trap is established before entering stuff box; One aperture gauze is established, except fine sand in the head box bottom of paper machine;
Full-automation is beaten, pulping process automatic control system with slurry adopts paper pulp moisture teller, is transferred to computer, analyzes the amount of water of data autocontrol valve according to pulp density.
2. the method for superelevation according to claim 1 dense refining process productive life paper using, is characterized in that: the DFH high-concentration energy-saving pulping machine that super high-density paste mill adopts Dongfang Light Industry Machinery Co., Ltd., Dandong to produce.
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| CN104452420A (en) * | 2014-11-20 | 2015-03-25 | 柳江县联华纸制品厂 | Preparation method of tea perfume paper napkin |
| CN104452431A (en) * | 2014-11-20 | 2015-03-25 | 柳江县联华纸制品厂 | Preparation method of flower perfume paper napkin |
| CN108611901B (en) * | 2018-05-29 | 2020-09-11 | 宣城市翰昌纸制品有限公司 | Paperboard production process |
| CN109082921B (en) * | 2018-07-27 | 2021-01-12 | 重庆理文卫生用纸制造有限公司 | Household paper pulp grinding process with high strength and low energy consumption |
| CN112663396A (en) * | 2020-12-16 | 2021-04-16 | 江西中竹生物质科技有限公司 | Production process of paper mulching film |
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| JP2000136492A (en) * | 1998-10-28 | 2000-05-16 | Onda Akio | Production of pure bagasse paper without using wood pulp |
| EP1088937A1 (en) * | 1999-09-28 | 2001-04-04 | Geopolimeri S.r.l. | Process for preparing high quality paper from vegetable residuals |
| CN1306124A (en) * | 2001-03-20 | 2001-08-01 | 张国兴 | Technology for making hand tissue |
| KR100948372B1 (en) * | 2009-04-24 | 2010-03-22 | 유희룡 | Process for producing pulp using bagasse |
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| CN101245565B (en) * | 2006-11-16 | 2011-10-26 | 褚全慧 | Zero discharge clean method for producing corn cane man-made fiber pulp, xylitol |
| WO2009070955A1 (en) * | 2007-12-05 | 2009-06-11 | Shandong Fuyin Paper & Environmental Protection Technology Co., Ltd | Grass type unbleached paper products and production method thereof |
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| US3013935A (en) * | 1959-03-30 | 1961-12-19 | Hawaiian Dev Company Ltd | Printing paper containing low-strength, nonwoody lignocellulose and process of making the same |
| JP2000136492A (en) * | 1998-10-28 | 2000-05-16 | Onda Akio | Production of pure bagasse paper without using wood pulp |
| EP1088937A1 (en) * | 1999-09-28 | 2001-04-04 | Geopolimeri S.r.l. | Process for preparing high quality paper from vegetable residuals |
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| KR100948372B1 (en) * | 2009-04-24 | 2010-03-22 | 유희룡 | Process for producing pulp using bagasse |
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Effective date of registration: 20180615 Address after: 530313 six industrial park, Hengxian, Nanning, the Guangxi Zhuang Autonomous Region Patentee after: Guangxi Tianlifeng Ecological Material Co., Ltd. Address before: 530313 six industrial park, Hengxian, Nanning, the Guangxi Zhuang Autonomous Region Patentee before: GUANGXI YUANSHENG PAPER CO., LTD. |