CN105507058A - Production technology for kraft liner board - Google Patents
Production technology for kraft liner board Download PDFInfo
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- CN105507058A CN105507058A CN201510956042.7A CN201510956042A CN105507058A CN 105507058 A CN105507058 A CN 105507058A CN 201510956042 A CN201510956042 A CN 201510956042A CN 105507058 A CN105507058 A CN 105507058A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 51
- 238000005516 engineering process Methods 0.000 title claims abstract description 50
- 239000002655 kraft paper Substances 0.000 title abstract description 6
- 238000010009 beating Methods 0.000 claims abstract description 91
- 238000004061 bleaching Methods 0.000 claims abstract description 22
- 241000609240 Ambelania acida Species 0.000 claims abstract description 12
- 240000000163 Cycas revoluta Species 0.000 claims abstract description 12
- 235000008601 Cycas revoluta Nutrition 0.000 claims abstract description 12
- 239000010905 bagasse Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000003490 calendering Methods 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 6
- 238000012216 screening Methods 0.000 claims abstract description 6
- 239000002585 base Substances 0.000 claims description 48
- 238000000576 coating method Methods 0.000 claims description 34
- 239000011248 coating agent Substances 0.000 claims description 28
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 22
- 239000002002 slurry Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 16
- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 claims description 12
- 244000050510 Cunninghamia lanceolata Species 0.000 claims description 11
- 206010033546 Pallor Diseases 0.000 claims description 11
- 238000009835 boiling Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-O oxonium Chemical compound [OH3+] XLYOFNOQVPJJNP-UHFFFAOYSA-O 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229920002472 Starch Polymers 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 6
- 244000060011 Cocos nucifera Species 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 239000003522 acrylic cement Substances 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000003651 drinking water Substances 0.000 claims description 6
- 235000020188 drinking water Nutrition 0.000 claims description 6
- 239000002105 nanoparticle Substances 0.000 claims description 6
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 239000000123 paper Substances 0.000 abstract description 35
- 239000000835 fiber Substances 0.000 abstract description 9
- 238000007639 printing Methods 0.000 abstract description 6
- 238000005096 rolling process Methods 0.000 abstract description 2
- 241000218646 Cedrus deodara Species 0.000 abstract 1
- 240000005340 Dendrocalamus giganteus Species 0.000 abstract 1
- 235000014706 Dendrocalamus giganteus Nutrition 0.000 abstract 1
- 244000302661 Phyllostachys pubescens Species 0.000 abstract 1
- 235000003570 Phyllostachys pubescens Nutrition 0.000 abstract 1
- 241000219492 Quercus Species 0.000 abstract 1
- 235000016976 Quercus macrolepis Nutrition 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 abstract 1
- 238000010411 cooking Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 238000004513 sizing Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000003712 decolorant Substances 0.000 description 3
- 210000002429 large intestine Anatomy 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000274582 Pycnanthus angolensis Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 230000000007 visual effect Effects 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
- 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
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0233—Soft rolls
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Paper (AREA)
Abstract
The invention discloses a production technology for a kraft liner board. The production technology includes the steps that log is used as a raw material, base paper is obtained through cooking, bleaching, screening, beating, sizing, residue removing, forming on forming fabric, squeezing, drying, rolling and calendaring, and according to log beating, oak, moso bamboo, dendrocalamus giganteus, fir, deodar, sago cycas and bagasse by the absolute dry mass ratio of (20-40):(10-20):(10-20):(20-40):(30-50):(10-20):15 are beaten and mixed to obtain mixed pulp. The kind, the ratio and the beating degree of pulp fibers of the base paper can be adjusted, the surface of the base paper is sequentially coated with a glue layer and a coating layer, and technological parameters of all steps are changed to improve the fiber strength and obtain higher pop strength, waterproofness and printing performance.
Description
Technical field
The present invention relates to pulping and paper-making field.More particularly, the present invention relates to a kind of production technology of ox-hide card.
Background technology
Ox-hide card be a kind of manufacture firmer carton cardboard, be called boxboard in China, wooden board package goods can be replaced, volume and weight small and light compared with wooden case, be one of main paper kind of China's package paper.Ox-hide card strong but pliable in texture, bursting strength, ring crush intensity and tearability want high, have higher WATER RESISTANCE in addition.Import volume accounts for 10% of package paper.Domestic boxboard generally divides U, A, B, C level Four.U level is equivalent to international most advanced level, and the international mean level of A Ji Wei, B level is domestic mean level.Kraft inner paper is mainly used in the packaging of Knitted and Cotton Goods, household items, hardware appliance product and exporting at home.But the fibrous raw material that current ox-hide card production technology uses is more single, burst index, tear index are lower, easily produces and tear phenomenon.In addition, uncoated ox-hide card, rough surface, quality are loose, smalls soaks by force, easily.
Summary of the invention
An object of the present invention is to solve at least the problems referred to above, and the advantage will illustrated at least is below provided.
A further object of the invention is to provide a kind of production technology of ox-hide card, it can adjust the kind of raw paper pulp fiber, ratio and beating degree, glue-line and coating is covered successively on body paper surface, and by changing the technological parameter of each step, to improve fibre strength, obtain better pop strength, water resistance, printing performance.
In order to realize, according to these objects of the present invention and other advantage, providing a kind of production technology of ox-hide card, comprising: employing log is raw material, through boiling, bleaching, screening, making beating, applying glue, slagging-off, upper net forming, squeezing, dry, batch and namely obtain body paper with press polish, the making beating of described log is than the Oak Tree being 20 ~ 40:10 ~ 20:10 ~ 20:20 ~ 40:30 ~ 50:10 ~ 20:15 by absolute dry mass, mao bamboon, Long Zhu, Chinese fir, cdear, sago cycas and bagasse are respectively through mixing after making beating process, and the mixing obtained is starched, and the beating consistency of Oak Tree is 3%, beating degree is 28 ° of SR, weight in wet base is 12g, the beating consistency 3% of mao bamboon, beating degree is 30 ° of SR, weight in wet base is 14g, and the beating consistency of imperial bamboo is 3%, beating degree is 32 ° of SR, weight in wet base is 15g, and the beating consistency of Chinese fir is 3%, beating degree is 29 ° of SR, weight in wet base is 12g, and the beating consistency of cdear is 3%, beating degree is 29 ° of SR, weight in wet base is 13g, and the beating consistency of sago cycas is 3%, beating degree is 28 ° of SR, weight in wet base is 14g, and the beating consistency of bagasse is 3%, beating degree is 32 ° of SR, weight in wet base is 15g.
Preferably, the production technology of described ox-hide card, also comprise: at described body paper surface coating coatings, the compound of the nanoscale stratiform diatomite of described coating to be mass ratio be 2 ~ 3:4 ~ 6:1 ~ 1.5:1.2, Nano titanium dioxide, wax nano particle and starch, wherein, the absolute dry mass ratio of body paper and coating is 75 ~ 80:20.
Preferably, the production technology of described ox-hide card, described ox-hide is also provided with glue-line before being stuck in applying coating, described glue-line is the acrylic adhesive and bidirectional stretching polypropylene film that are formed successively from bottom to up on described body paper surface, wherein, the absolute dry mass ratio of described body paper and described glue-line is 75 ~ 80:10.
Preferably, the production technology of described ox-hide card, the temperature of boiling step is 135 DEG C.
Preferably, the production technology of described ox-hide card, blanching step comprises successively by three bleaching processes of dense oxonium base delignification, hydrogen peroxide and hydroquinones, the delignified slurry concentration of dense oxonium base is 6%, temperature is 65 DEG C, oxygen pressure is 250KPa, the slurry concentration of Alkali Hydrogen Peroxide System is 6%, bleaching pH value is 10, the slurry concentration of hydroquinones bleaching process is 3%, and wherein solvent is the magnetized drinking water soaking 3h through cocoanut shell.
Preferably, the production technology of described ox-hide card will be also the dilute hydrochloric acid solution rinsing of 10% by mass fraction at 40 DEG C after blanching step.
Preferably, the production technology of described ox-hide card, squeezing step adopts the unipress of four roller three nips and malleation squeezing, and the linear pressure in each district is: a nip 5.5MPa, two nip 6.5MPa, three nip 5MPa, four nip 6MPa.
Preferably, the production technology of described ox-hide card, calendaring step adopts soft calender.
The present invention at least comprises following beneficial effect:
The first, the preferred Oak Tree of the present invention, mao bamboon, Long Zhu, Chinese fir, cdear, sago cycas and bagasse are as pulp fiber source, improve the more single softwood pulp production difficult problem caused of raw material ratio, effective utilization processing remaining sides plate, save cost, controlled beating consistency, beating degree and weight in wet base technological parameter, keep fibre length, balance high-air-permeability, low tightness and flatness, strengthen the combination between pulp fiber, improve physical strength and evenness, significantly improve outward appearance;
The second, at body paper surface coating coatings, to increase water resistance and printing performance, coating selects the compound of nanoscale stratiform diatomite, Nano titanium dioxide, wax nano particle, starch, obtain lower surface energy, nanoscale stratiform diatomite makes surface construction special construction, adds starch hydrophobic effect better; Ox-hide is also provided with glue-line, the adhesion that acrylic adhesive and body paper are formed before being stuck in coating glue-line, and bidirectional stretching polypropylene film not only increases waterproof ability, this intensity resistance to, is also convenient to applying coating;
Three, boiling temperature to 135 DEG C is reduced, make different fibrous raw material evenly steaming mixed, Kappa number amplitude of variation is little, and improving the yellow value of slurry for adopting hydrogen peroxide bleaching afterwards provides basis, decrease the impurity such as bark, crude fibre, reduce the dust material in kraft inner paper and coarse fiber bundle; Blanching step adopts dense oxonium base delignification, hydrogen peroxide, hydroquinones successively, control hydroquinones bleaching according to the Kappa number of slurry now, make slurry form and aspect stablize, reach quality requirement, the magnetized drinking water that cocoanut shell soaked, avoid slurry form and aspect to fluctuate, improve into paper form and aspect stability; Remaining calcium salt base is dissolved in watery hydrochloric acid rinsing, avoids forming rosin acid calcium Chen Ding with free rosin acid anion in the process of visual angle, avoids scale deposition on equipment; The unipress of four roller three nips and malleation squeezing, while making the gas permeability of ox-hide card and tightness increase growth fast with squeeze pressure, balances the physical strength of kraft inner paper; Soft calender improves the smoothness of kraft inner paper, is convenient to applying coating.
Part is embodied by explanation below by other advantage of the present invention, target and feature, part also will by research and practice of the present invention by those skilled in the art is understood.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, can implement according to this with reference to description word to make those skilled in the art.
Should be appreciated that used hereinly such as " to have ", other element one or more do not allotted in " comprising " and " comprising " term or the existence of its combination or interpolation.
It should be noted that experimental technique described in following embodiment if no special instructions, is conventional method, described reagent and material, if no special instructions, all can obtain from commercial channels;
< embodiment 1>
A kind of production technology of ox-hide card, comprise: employing log is raw material, through boiling, bleaching, screening, making beating, applying glue, slagging-off, upper net forming, squeezing, dry, batch and namely obtain body paper with press polish, the making beating of described log is than the Oak Tree being 20:10:10:20:30:10:15 by absolute dry mass, mao bamboon, Long Zhu, Chinese fir, cdear, sago cycas and bagasse are respectively through mixing after making beating process, the mixing slurry obtained, the beating consistency of Oak Tree is 3%, beating degree is 28 ° of SR, weight in wet base is 12g, the beating consistency 3% of mao bamboon, beating degree is 30 ° of SR, weight in wet base is 14g, the beating consistency of dragon bamboo is 3%, beating degree is 32 ° of SR, weight in wet base is 15g, the beating consistency of Chinese fir is 3%, beating degree is 29 ° of SR, weight in wet base is 12g, the beating consistency of cdear is 3%, beating degree is 29 ° of SR, weight in wet base is 13g, the beating consistency of sago cycas is 3%, beating degree is 28 ° of SR, weight in wet base is 14g, and the beating consistency of bagasse is 3%, beating degree is 32 ° of SR, weight in wet base is 15g.
Wherein, the production technology of described ox-hide card, also comprise: at described body paper surface coating coatings, the compound of the nanoscale stratiform diatomite of described coating to be mass ratio be 2:4:1:1.2, Nano titanium dioxide, wax nano particle and starch, wherein, the absolute dry mass of body paper and coating is than being 75:20.
Wherein, the production technology of described ox-hide card, described ox-hide is also provided with glue-line before being stuck in applying coating, described glue-line is the acrylic adhesive and bidirectional stretching polypropylene film that are formed successively from bottom to up on described body paper surface, wherein, the absolute dry mass of described body paper and described glue-line is than being 75:10.
Wherein, the production technology of described ox-hide card, the temperature of boiling step is 135 DEG C.
Wherein, the production technology of described ox-hide card, blanching step comprises successively by three bleaching processes of dense oxonium base delignification, hydrogen peroxide and hydroquinones, the delignified slurry concentration of dense oxonium base is 6%, temperature is 65 DEG C, oxygen pressure is 250KPa, the slurry concentration of Alkali Hydrogen Peroxide System is 6%, bleaching pH value is 10, the slurry concentration of hydroquinones bleaching process is 3%, and wherein solvent is the magnetized drinking water soaking 3h through cocoanut shell.
Wherein, the production technology of described ox-hide card will be also the dilute hydrochloric acid solution rinsing of 10% by mass fraction at 40 DEG C after blanching step.
Wherein, the production technology of described ox-hide card, squeezing step adopts the unipress of four roller three nips and malleation squeezing, and the linear pressure in each district is: a nip 5.5MPa, two nip 6.5MPa, three nip 5MPa, four nip 6MPa.
Wherein, the production technology of described ox-hide card, calendaring step adopts soft calender.
After testing, the ox-hide card printing gloss that embodiment 1 is produced is high, lead content (in Pb) 0.32mg/kg, arsenic content (in As) < 0.2mg/kg, fluorescent substance 254nm and 365nm and Decolorant Test (water, n-hexane) are feminine gender, every 100g large intestine bacterium colony < 30, does not detect pathogenic bacteria.
< embodiment 2>
A kind of production technology of ox-hide card, comprise: employing log is raw material, through boiling, bleaching, screening, making beating, applying glue, slagging-off, upper net forming, squeezing, dry, batch and namely obtain body paper with press polish, the making beating of described log is than the Oak Tree being 40:20:20:40:50:20:15 by absolute dry mass, mao bamboon, Long Zhu, Chinese fir, cdear, sago cycas and bagasse are respectively through mixing after making beating process, the mixing slurry obtained, the beating consistency of Oak Tree is 3%, beating degree is 28 ° of SR, weight in wet base is 12g, the beating consistency 3% of mao bamboon, beating degree is 30 ° of SR, weight in wet base is 14g, the beating consistency of dragon bamboo is 3%, beating degree is 32 ° of SR, weight in wet base is 15g, the beating consistency of Chinese fir is 3%, beating degree is 29 ° of SR, weight in wet base is 12g, the beating consistency of cdear is 3%, beating degree is 29 ° of SR, weight in wet base is 13g, the beating consistency of sago cycas is 3%, beating degree is 28 ° of SR, weight in wet base is 14g, and the beating consistency of bagasse is 3%, beating degree is 32 ° of SR, weight in wet base is 15g.
Wherein, the production technology of described ox-hide card, also comprise: at described body paper surface coating coatings, the compound of the nanoscale stratiform diatomite of described coating to be mass ratio be 3:6:1.5:1.2, Nano titanium dioxide, wax nano particle and starch, wherein, the absolute dry mass of body paper and coating is than being 80:20.
Wherein, the production technology of described ox-hide card, described ox-hide is also provided with glue-line before being stuck in applying coating, described glue-line is the acrylic adhesive and bidirectional stretching polypropylene film that are formed successively from bottom to up on described body paper surface, wherein, the absolute dry mass of described body paper and described glue-line is than being 80:10.
Wherein, the production technology of described ox-hide card, the temperature of boiling step is 135 DEG C.
Wherein, the production technology of described ox-hide card, blanching step comprises successively by three bleaching processes of dense oxonium base delignification, hydrogen peroxide and hydroquinones, the delignified slurry concentration of dense oxonium base is 6%, temperature is 65 DEG C, oxygen pressure is 250KPa, the slurry concentration of Alkali Hydrogen Peroxide System is 6%, bleaching pH value is 10, the slurry concentration of hydroquinones bleaching process is 3%, and wherein solvent is the magnetized drinking water soaking 3h through cocoanut shell.
Wherein, the production technology of described ox-hide card will be also the dilute hydrochloric acid solution rinsing of 10% by mass fraction at 40 DEG C after blanching step.
Wherein, the production technology of described ox-hide card, squeezing step adopts the unipress of four roller three nips and malleation squeezing, and the linear pressure in each district is: a nip 5.5MPa, two nip 6.5MPa, three nip 5MPa, four nip 6MPa.
Wherein, the production technology of described ox-hide card, calendaring step adopts soft calender.
After testing, the ox-hide card printing gloss that embodiment 2 is produced is high, lead content (in Pb) 0.33mg/kg, arsenic content (in As) < 0.2mg/kg, fluorescent substance 254nm and 365nm and Decolorant Test (water, n-hexane) are feminine gender, every 100g large intestine bacterium colony < 30, does not detect pathogenic bacteria.
< embodiment 3>
A kind of production technology of ox-hide card, comprise: employing log is raw material, through boiling, bleaching, screening, making beating, applying glue, slagging-off, upper net forming, squeezing, dry, batch and namely obtain body paper with press polish, the making beating of described log is than the Oak Tree being 30:15:15:30:40:15:15 by absolute dry mass, mao bamboon, Long Zhu, Chinese fir, cdear, sago cycas and bagasse are respectively through mixing after making beating process, the mixing slurry obtained, the beating consistency of Oak Tree is 3%, beating degree is 28 ° of SR, weight in wet base is 12g, the beating consistency 3% of mao bamboon, beating degree is 30 ° of SR, weight in wet base is 14g, the beating consistency of dragon bamboo is 3%, beating degree is 32 ° of SR, weight in wet base is 15g, the beating consistency of Chinese fir is 3%, beating degree is 29 ° of SR, weight in wet base is 12g, the beating consistency of cdear is 3%, beating degree is 29 ° of SR, weight in wet base is 13g, the beating consistency of sago cycas is 3%, beating degree is 28 ° of SR, weight in wet base is 14g, and the beating consistency of bagasse is 3%, beating degree is 32 ° of SR, weight in wet base is 15g.
Wherein, the production technology of described ox-hide card, also comprise: at described body paper surface coating coatings, the compound of the nanoscale stratiform diatomite of described coating to be mass ratio be 2:5:1.5:1.2, Nano titanium dioxide, wax nano particle and starch, wherein, the absolute dry mass of body paper and coating is than being 78:20.
Wherein, the production technology of described ox-hide card, described ox-hide is also provided with glue-line before being stuck in applying coating, described glue-line is the acrylic adhesive and bidirectional stretching polypropylene film that are formed successively from bottom to up on described body paper surface, wherein, the absolute dry mass of described body paper and described glue-line is than being 78:10.
Wherein, the production technology of described ox-hide card, the temperature of boiling step is 135 DEG C.
Wherein, the production technology of described ox-hide card, blanching step comprises successively by three bleaching processes of dense oxonium base delignification, hydrogen peroxide and hydroquinones, the delignified slurry concentration of dense oxonium base is 6%, temperature is 65 DEG C, oxygen pressure is 250KPa, the slurry concentration of Alkali Hydrogen Peroxide System is 6%, bleaching pH value is 10, the slurry concentration of hydroquinones bleaching process is 3%, and wherein solvent is the magnetized drinking water soaking 3h through cocoanut shell.
Wherein, the production technology of described ox-hide card will be also the dilute hydrochloric acid solution rinsing of 10% by mass fraction at 40 DEG C after blanching step.
Wherein, the production technology of described ox-hide card, squeezing step adopts the unipress of four roller three nips and malleation squeezing, and the linear pressure in each district is: a nip 5.5MPa, two nip 6.5MPa, three nip 5MPa, four nip 6MPa.
Wherein, the production technology of described ox-hide card, calendaring step adopts soft calender.
After testing, the ox-hide card printing gloss that embodiment 3 is produced is high, lead content (in Pb) 0.31mg/kg, arsenic content (in As) < 0.2mg/kg, fluorescent substance 254nm and 365nm and Decolorant Test (water, n-hexane) are feminine gender, every 100g large intestine bacterium colony < 30, does not detect pathogenic bacteria.
< tests 1>
The glue-line of the ox-hide card of embodiment 1 ~ 3 is carried out viscosity detection, and result is as shown in table 1:
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Roll after lamination | Do not roll | Do not roll | Do not roll |
| Bonding processability | Good | Good | Good |
| Bonding strength (g/25mm) | 1300 | 1500 | 1600 |
| Glue-line thin slice is mentioned | Nothing | Nothing | Nothing |
Can be shown by upper table, without rolling and there is enough bonding strengths after embodiment 1 ~ 3 shows lamination, the cohesiveness that glue-line has had body paper is described.
< tests 2>
Comparative example: production technology, with embodiment 3, does not wherein comprise the step arranging glue-line and coating, the ox-hide card that embodiment 1 ~ 3, comparative example are produced is carried out respectively the detection of folding number, burst index and horizontal ring crush index, result is as table 2:
Table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example | |
| Folding number (secondary) | 850 | 867 | 879 | 642 |
| Resistance to broken finger (kPam -2·g -1) | 6.21 | 5.85 | 6.64 | 4.22 |
| Horizontal ring crush index (Nm/g) | 12.45 | 12.53 | 12.79 | 11.45 |
| Water absorbent surface (gm -2) | 12 | 14 | 10 | ≤40 |
As seen from the above table, the setting of glue-line, coating, makes the folding number of ox-hide card significantly increase, the also corresponding growth of burst index, horizontal ring crush index.
Here the number of devices illustrated and treatment scale are used to simplify explanation of the present invention.The application of the production technology of ox-hide card of the present invention, modifications and variations be will be readily apparent to persons skilled in the art.
Although embodiment of the present invention are open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the embodiment described.
Claims (8)
1. a production technology for ox-hide card, comprising: employing log is raw material, through boiling, bleaching, screening, making beating, applying glue, slagging-off, upper net forming, squeezing, dry, batch and namely obtain body paper with press polish, it is characterized in that, the making beating of described log is than the Oak Tree being 20 ~ 40:10 ~ 20:10 ~ 20:20 ~ 40:30 ~ 50:10 ~ 20:15 by absolute dry mass, mao bamboon, Long Zhu, Chinese fir, cdear, sago cycas and bagasse are respectively through mixing after making beating process, and the mixing obtained is starched, and the beating consistency of Oak Tree is 3%, beating degree is 28 ° of SR, weight in wet base is 12g, the beating consistency 3% of mao bamboon, beating degree is 30 ° of SR, weight in wet base is 14g, and the beating consistency of imperial bamboo is 3%, beating degree is 32 ° of SR, weight in wet base is 15g, and the beating consistency of Chinese fir is 3%, beating degree is 29 ° of SR, weight in wet base is 12g, and the beating consistency of cdear is 3%, beating degree is 29 ° of SR, weight in wet base is 13g, and the beating consistency of sago cycas is 3%, beating degree is 28 ° of SR, weight in wet base is 14g, and the beating consistency of bagasse is 3%, beating degree is 32 ° of SR, weight in wet base is 15g.
2. the production technology of ox-hide card as claimed in claim 1, it is characterized in that, also comprise: at described body paper surface coating coatings, the compound of the nanoscale stratiform diatomite of described coating to be mass ratio be 2 ~ 3:4 ~ 6:1 ~ 1.5:1.2, Nano titanium dioxide, wax nano particle and starch, wherein, the absolute dry mass ratio of body paper and coating is 75 ~ 80:20.
3. the production technology of ox-hide card as claimed in claim 2, it is characterized in that, described ox-hide is also provided with glue-line before being stuck in applying coating, described glue-line is the acrylic adhesive and bidirectional stretching polypropylene film that are formed successively from bottom to up on described body paper surface, wherein, the absolute dry mass ratio of described body paper and described glue-line is 75 ~ 80:10.
4. the production technology of ox-hide card as claimed in claim 1, it is characterized in that, the temperature of boiling step is 135 DEG C.
5. the production technology of ox-hide card as claimed in claim 1, it is characterized in that, blanching step comprises successively by three bleaching processes of dense oxonium base delignification, hydrogen peroxide and hydroquinones, the delignified slurry concentration of dense oxonium base is 6%, temperature is 65 DEG C, oxygen pressure is 250KPa, the slurry concentration of Alkali Hydrogen Peroxide System is 6%, bleaching pH value is 10, the slurry concentration of hydroquinones bleaching process is 3%, and wherein solvent is the magnetized drinking water soaking 3h through cocoanut shell.
6. the production technology of ox-hide card as claimed in claim 5, is characterized in that, will be also the dilute hydrochloric acid solution rinsing of 10% by mass fraction at 40 DEG C after blanching step.
7. the production technology of ox-hide card as claimed in claim 1, is characterized in that, squeezing step adopts the unipress of four roller three nips and malleation squeezing, and the linear pressure in each district is: a nip 5.5MPa, two nip 6.5MPa, three nip 5MPa, four nip 6MPa.
8. the production technology of ox-hide card as claimed in claim 1, is characterized in that, calendaring step adopts soft calender.
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