CN105531418A - White paperboard, and production method therefor - Google Patents
White paperboard, and production method therefor Download PDFInfo
- Publication number
- CN105531418A CN105531418A CN201480051582.4A CN201480051582A CN105531418A CN 105531418 A CN105531418 A CN 105531418A CN 201480051582 A CN201480051582 A CN 201480051582A CN 105531418 A CN105531418 A CN 105531418A
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- Prior art keywords
- white board
- layer
- lbctmp
- intermediate layer
- paper
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- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 239000011087 paperboard Substances 0.000 title abstract description 23
- 241000208140 Acer Species 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 121
- 239000000463 material Substances 0.000 claims description 40
- 229920001131 Pulp (paper) Polymers 0.000 claims description 38
- 239000011247 coating layer Substances 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 16
- 239000000049 pigment Substances 0.000 claims description 16
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000002023 wood Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- 230000000930 thermomechanical effect Effects 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 238000007639 printing Methods 0.000 abstract description 26
- 239000007858 starting material Substances 0.000 abstract 1
- 239000000123 paper Substances 0.000 description 63
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- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 6
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- 239000000843 powder Substances 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
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- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
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- 244000061456 Solanum tuberosum Species 0.000 description 2
- 235000002595 Solanum tuberosum Nutrition 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000006266 etherification reaction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 235000018102 proteins Nutrition 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 238000007761 roller coating Methods 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 235000012222 talc Nutrition 0.000 description 2
- 238000010345 tape casting Methods 0.000 description 2
- 244000085692 Cordia alliodora Species 0.000 description 1
- 235000004258 Cordia alliodora Nutrition 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 241001343274 Dichrostachys spicata Species 0.000 description 1
- 235000014466 Douglas bleu Nutrition 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 235000008577 Pinus radiata Nutrition 0.000 description 1
- 241000218621 Pinus radiata Species 0.000 description 1
- 241000276498 Pollachius virens Species 0.000 description 1
- 240000001416 Pseudotsuga menziesii Species 0.000 description 1
- 235000005386 Pseudotsuga menziesii var menziesii Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 108010073771 Soybean Proteins Proteins 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- FXBZWPXBAZFWIY-UHFFFAOYSA-N butyl prop-2-enoate;ethenyl acetate Chemical compound CC(=O)OC=C.CCCCOC(=O)C=C FXBZWPXBAZFWIY-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000001254 oxidized starch Substances 0.000 description 1
- 235000013808 oxidized starch Nutrition 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 235000015277 pork Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 235000019710 soybean protein Nutrition 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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- 238000010998 test method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000011787 zinc oxide Substances 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
- D21H11/08—Mechanical or thermomechanical 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
- 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
- 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
- D21H27/30—Multi-ply
Abstract
Provided is a white paperboard which exhibits excellent bulkiness and cushioning properties, excellent printability as a paperboard for printing, and excellent paper-processing properties as a paperboard for cartons. This white paperboard is manufactured having a multilayer structure comprising at least 3 layers, and is obtained by combining a front layer, an intermediate layer, and a back layer. LBCTMP having a bulk of 3.0-3.8 cm3/g is included in only the intermediate layer so as to account for 10-50 wt% of a total pulp starting material of the intermediate layer. LBCTMP obtained from the genus Maple is employed as the LBCTMP.
Description
Technical field
The present invention relates to white board and manufacture method thereof, more specifically, relate to particularly at the printing paperboard of the front cover and text, catalogue, placard, brochure, calendar etc. of painting the publications such as basis, magazine, and punch forming (Twisted り is shaped) the fluffy white board that uses in paper device paperboard with the barrel of sheet material, food paper using device, instant noodles container, dixie cup, tuck box, cigarette etc. and manufacture method thereof.
Background technology
In the past, as relating to the purposes identical with white board of the present invention, the invention of the paperboard namely used in printing paperboard, paper device packaging plate paper or corrugated paper liner, punch forming sheet material, food paper using device, instant noodles container etc., have patent document 1(Japanese Patent No. 3714124 publication), it relates to can realize raw-material light-weighted fluffy paperboard compared with product in the past in paper device, packaging, printing.
In this patent document 1, disclose that " a kind of fluffy paperboard, is characterized in that, structure, the weight per unit area in the both sides in intermediate layer with more than three layers of layer, outside are 90 ~ 600g/m
2paperboard in, the density of paperboard entirety is 0.50 ~ 0.75g/cm
3, at least the outside layer of side has weight per unit area is 15 ~ 100g/m
2, density is 0.60 ~ 0.90g/cm
3outermost layer, intermediate layer is formed based on more than one the paper pulp be selected from mechanical pulp, crimped fibre (curledfibers) and mercerized pulps, and the density in intermediate layer is 0.20 ~ 0.60g/cm
3".
In addition, particularly in hold Potato Cake, fried pork chop, tempura, chip potato, steamed dumplings, dumpling, Takoyaki, madai are burnt etc., there is the multilayer used in the paper container of the food of oil content and moisture etc. and copy making sheet paper as disclosing to relate to and copy the document of invention of the paper container that making sheet box made of paper obtains by this multilayer, have patent document 2(Japanese Patent No. 4302124 publication).
In this patent document 2, disclose that " a kind of multilayer copies making sheet paper; it is characterized in that, at least comprising outside layer, internal layer and the intermediate layer that configures between described outside layer and described internal layer, is that the weight per unit area for holding the food with oil content and moisture is 200 ~ 530g/m
2multilayer copy making sheet paper, wherein, described intermediate layer is made to contain the mechanical pulp of at least 10%, improve rigidity and the aeration in this intermediate layer thus, make that the lightness in the tone in this intermediate layer (L value) is 70 ~ 85, form and aspect (a value) are-3 ~ 3, form and aspect (b value) are 10 ~ 16, thus optimize the appearance of this paperboard, and, make described outside layer, internal layer, the freeness in intermediate layer is 350 ~ 450cc, the air permeability of this paperboard is adjusted to 10 ~ 150 seconds simultaneously, obtains the crispy texture of described food thus ".
But, in the invention that above-mentioned patent document 1 is recorded, be recommended in multilayer and copy in the intermediate layer of system the mechanical pulp coordinating the needlebush (N material) such as pine (Radiatapine), Southern Pine (Southernpine), Douglas pine (douglasfir), in the invention that patent document 2 is recorded, clearly record and TMP is used as mechanical pulp.
Prior art document
Patent document
Patent document 1: Japanese Patent No. 3714124 publication
Patent document 2: Japanese Patent No. 4302124 publication.
Summary of the invention
Invent problem to be solved
Above-mentioned multilayer in the past copy making sheet paper or fluffy paperboard can not all meet fluffy and resiliency is high, good as the printing applicability of printing paperboard, as many effects such as the paper conversion applicability of paper device paperboard are good.Therefore, problem of the present invention is to provide the bulk white board and manufacture method thereof that all can meet these many effects.
Solve the means of problem
The present inventor finds, by coordinating the leaf wood bleached chemical thermomechanical paper pulp (LBleachedChemi-ThermoMechanicalPulp: below sometimes referred to as LBCTMP) of specific bulk (specific volume) in the intermediate layer of described fluffy white board, can obtain fluffy, resiliency is high, good as the printing applicability of printing paperboard, as the good fluffy white board of the paper conversion applicability of paper device paperboard, thus complete the present invention.
In other words, a kind of white board for solving the invention of the claim 1 of above-mentioned problem, it is that the multilayer comprising more than 3 layers copies white board processed, it is characterized in that, only coordinates bulk for 3.0 ~ 3.8cm in intermediate layer with the amount of the whole paper pulp raw material 10 ~ 50wt% relative to intermediate layer
3leaf wood bleached chemical thermomechanical paper pulp (LBCTMP) of/g, the system of outside layer, intermediate layer and internal layer being copied closes layer.
In one embodiment, as described LBCTMP, coordinate and belong to by maple (Maple) LBCTMP obtained, make the density of white board be 0.70 ~ 1.00g/m
2.In addition, one side or two sides has the coating layer comprising pigment and adhesive of more than one deck.In addition, in one embodiment, in described coating layer, the interior coating layer of adjacent body paper comprises calcium carbonate as pigment, in the pigment of every 100 weight portions, containing described calcium carbonate more than 50 weight portions, in addition, in described coating layer, outermost coating layer comprises flat pigment, in the pigment of every 100 weight portions, containing described flat face material more than 50 weight portions.
In addition, for solving the manufacture method that the invention of the claim 7 of above-mentioned problem is white board, it is the manufacture method that the multilayer comprising more than 3 layers copies white board processed, it is characterized in that, only coordinate bulk for 3.0 ~ 3.8cm with the amount of the whole paper pulp raw material 10 ~ 50wt% relative to intermediate layer in the intermediate layer
3leaf wood bleached chemical thermomechanical paper pulp (LBCTMP) of/g, the system of outside layer, intermediate layer and internal layer being copied closes layer.
In one embodiment, the one side or two sides of described white board arrange the coating layer comprising face material and adhesive of more than one deck, comprise the step being coated with at least one deck in described coating layer with knife type coater.
Invention effect
The present invention is described above, and there is following effect: in white board of the present invention, owing to only coordinating LBCTMP in intermediate layer, therefore, it is possible to prevent the decline of surface strength, in addition, because the positive and negative from paper does not produce the paper powder being derived from LBCTMP, therefore do not have to produce in copy paper step and application step and result from the worry of pollution of paper powder, can obtain printing the good white board of applicability.
In addition, also there is following effect: owing to becoming more fluffy than white board in the past, therefore become lighter than the ivory of same thickness, become and be suitable as the high white board of the resiliency of the printing white board such as front cover, text, catalogue, placard, brochure, calendar of painting this, in addition, can obtain touching that sense is soft, child can not the white board of injured, excellent in safety when page turning, further, even if as paper device paperboard, also become the fluffy white board that resiliency is high, processing and forming applicability is good.
Detailed description of the invention
White board of the present invention is that the multilayer comprising more than 3 layers copies white board processed, only coordinates bulk for 3.0 ~ 3.8cm in intermediate layer with the amount of the whole raw material 10 ~ 50wt% relative to intermediate layer
3the LBCTMP of/g, the system of outside layer, intermediate layer and internal layer being copied closes layer.White board of the present invention can it can be used as body paper (following, be sometimes referred to as in this manual " base paper "), be produced on white board body paper being arranged the coating layer (following, to be sometimes referred to as in this manual " face material coating layer ") comprising face material and adhesive.This face material coating layer body paper one side or two-sided on have at least more than one deck.
In the present invention, in the intermediate layer of white board, bulk is coordinated to be 3.0 ~ 3.8cm
3the paper pulp of/g, as long as described paper pulp bulk is in above-mentioned scope, is then not particularly limited, but preferably uses BCTMP, the LBCTMP more preferably obtained by broad-leaved wood, is most preferably belonged to the LBCTMP obtained by maple.Among leaf wood, maple accessory has and is suitable for bulky angle value of the present invention.In the present invention, LBCTMP is the abbreviation of " LBleachedchemithermomechanicalpulp ", is that to be used as in the middle of the BCTMP of one of mechanical pulp take leaf wood as the paper pulp that the L material of raw material obtains.CTMP is TMP(Thermomechanicalpulp) and chemicals process combine paper pulp, CTMP is bleached the paper pulp obtained by BCTMP.BCTMP and TMP compares, and flexibility is excellent, and sheet density, TENSILE STRENGTH, rupture strength are good.In addition, the fibre morphology due to CTMP is flexible tubulose, and therefore paper pulp has fluffy, that opacity is high feature.
In addition, in the present invention, in order to obtain required fluffy white board, wish that the bulk of LBCTMP is 3.0 ~ 3.8cm
3/ g.Bulk mentioned here is, according to JISP8222:1998, paper pulp is made hand papermaking, to measure obtain, by using bulk to be 3.0 ~ 3.8cm the bulk of hand papermaking according to ISO534:1988
3the LBCTMP of/g, can obtain the density of desired fluffy white board.
In white board of the present invention, only coordinate the LBCTMP of above-mentioned bulk in intermediate layer.Being defined as only in intermediate layer by cooperation LBCTMP like this, is because when outside layer and internal layer coordinate LBCTMP, surface strength declines, and produces the paper powder being derived from LBCTMP, become the reason producing pollution in copy paper step and application step from the positive and negative of paper.In addition, surface strength decline can cause printing the tendency that applicability also has decline.
In addition, the present inventor finds, when the material of the above-mentioned BCTMP coordinated in the intermediate layer is made as the LBCTMP of leaf wood paper pulp, the quality in intermediate layer is than better during other BCTMP of cooperation.Infer that its reason is, above-mentioned LBCTMP is better than the dissociative of other BCTMP in pulper.Think to form this Rotating fields, quality is important, if the quality in intermediate layer is deteriorated, then overall quality also can be deteriorated, in addition, can to the smoothness of the outside layer adjoined with intermediate layer and internal layer, print applicability, processing and forming applicability produces harmful effect.Should illustrate, be peel off outside layer and internal layer, by the quality in perusal intermediate layer in the quality in the intermediate layer of this indication.
In the present invention, if the decline of crossing density at most due to LBCTMP can become greatly, print applicability, the deterioration of processing and forming applicability, therefore LBCTMP fit rate is in the intermediate layer 10 ~ 50wt%(oven dry weight of intermediate layer paper pulp entirety), preferably 20 ~ 40wt%, more preferably 25 ~ 40wt%, can reach desired density thus.As the density of white board entirety, wish to be 0.70 ~ 1.00g/m
2.Especially, when not there is face material coating layer, wish to be 0.70 ~ 0.74g/m
2, when there is face material coating layer, wish to be 0.75 ~ 1.00g/m
2(preferably 0.77 ~ 0.96g/m
2).
As the paper pulp outside the LBCTMP used in the present invention, have no particular limits, suitably can select according to purposes.Such as, when the printing paperboard painting this front cover, text, catalogue, placard, brochure, calendar etc. be used as costly and paper device food containers, the magma such as N-BKP, L-BKP, mechanical pulp can be coordinated.In addition, during for food applications, it is desirable to coordinate non-blooming paper pulp.When food applications, if coordinate old paper pulp, then the quality and the outward appearance that comprise intensity can worsen, and therefore wish to mismatch old paper pulp.
The starting pulps used in ply of paper outside the intermediate layer of fluffy white board of the present invention has no particular limits, and can use normally used starting pulps according to purposes.Such as, NBKP, LBKP etc. can be used.When using NBKP, be preferably less than 20% of total paper pulp oven dry weight.Fluffy white board of the present invention comprises more than 3 layers, the pulp weight of intermediate layer and other layers accounts for the 33wt% ~ 50wt% of the pulp weight of whole layer than being preferably intermediate layer, other layers preferably deduct weight that intermediate layer the obtains weight divided by total gained from the total of whole layer.
In fluffy white board of the present invention, also can coordinate the inorganic fillers such as precipitated calcium carbonate, powdered whiting, talcum.In addition, as required, the various paper grade (stock) medicines such as paper power reinforcing agent, internal sizing agent, retention agent, flocculant (coagulant), aluminum sulfate, dyestuff, defoamer, ultraviolet (UV) resistant agent, anti-fading agent, pitch control agent (pitchcontrolagent) can also be coordinated.
To enumerate an embodiment about the purposes of white board of the present invention, such as, when the white board with face material coating layer being used as paper device, if the density of white board is lower than 0.75g/m
2, then can lose the chewiness of white board itself, processing applicability worsens.In addition, if this density is more than 1.00g/m
2, then white board itself is hardening, when carrying out such as bending process, can produce breaking of paper, and processing applicability worsens.
When white board of the present invention is used as printing white board, preferred body paper has face material coating layer.When there is pigment application layer, if the density of white board is lower than 0.75g/m
2, then the flatness of obverse and reverse declines, and printing adaptability worsens.On the contrary, if density is more than 1.00g/m
2, then paper becomes really up to the mark, becomes easily produce the problems such as folding line cracking (back of the body cuts れ) when printing bookbinding, therefore not preferred.
In the present invention, in order to adjust the density of white board entirety, by comprising the intermediate layer of LBCTMP and outside layer, the beating degree (beating フ リ ー ネ ス) of internal layer is adjusted to 300 ~ 500cc, the weight per unit area ratio in intermediate layer is adjusted to total weight per unit area (oven dry weight) 10 ~ 60wt%(preferably 20 ~ 50wt% relative to comprising outside layer, intermediate layer, internal layer).Method of the present invention is copied except the multilayer paperboard of system except being applicable to 3 layers, and the multilayer that can also be applicable to more than 4 layers copies the situation of system.
In the present invention, close bed device by the multilayers such as fourdrinier machine, cylinder mould machine, super former (the ウ Le ト ラ フ ォ ー マ ー) system of copying and to manufacture paper with pulp above-mentioned white board.White board of the present invention is not compared with containing the white board of LBCTMP, fluffy/to have resiliency, and printing applicability, processing and forming applicability are excellent.In addition, according to purposes and required quality, using white board of the present invention as body paper, by one side or two-sided on coating comprise the coating fluid of pigment and adhesive, distincter printed article and good processing and forming applicability can be obtained, therefore preferably.As long as more than face material coating layer one deck, then there is no particular limitation, in order to improve flatness and whiteness, preferably arrange two-layer more than.
As the pigment used in described face material coating layer, have no particular limits, can use in the past for the pigment of face material coated paper purposes, such as can be used alone following pigment as required or mix two or more use: kaolin, clay, engineered kaolin (engineeredkaolin), delaminated clay (delaminatedclay), powdered whiting, precipitated calcium carbonate, talcum, titanium dioxide, barium sulfate, calcium sulfate, zinc oxide, silicic acid, silicate, silica gel, the inorganic pigments such as satin white (satinwhite), and compact-type, hollow type or the organic pigment etc. such as hud typed.
In the present invention, two-layer above face material coating layer being preferably set, in order to give whiteness to coating layer, preferably in priming coat, comprising powdered whiting and/or precipitated calcium carbonate.Fluffy coating layer structure is to make light scattering efficiently.Precipitated calcium carbonate or powdered whiting or the content that both amount to are the face material of every 100 weight portions preferably more than 50 weight portions, more preferably more than 70 weight portions, further preferably more than 80 weight.
In addition, in order to improve flatness, in top coat, the pigment that more than one kaolin, clay, engineered kaolin, delaminated clay etc. are flat is preferably comprised.The content of described flat face material is the face material of every 100 weight portions preferably more than 50 weight portions, more preferably more than 70 weight portions.
About the adhesive used in the present invention (binder), have no particular limits, can use in the past for the adhesive of coated paper purposes.Such as, as preferred adhesive, can the coating adhesive for paper of suitable more than one following routines of choice for use: the various copolymers such as styrene butadiene system, styrene acrylic system, ethylene vinyl acetate system, butadiene methyl methacrylate system, vinyl acetate acrylic acid butyl ester system, and the synthesis such as polyvinyl alcohol, copolymer-maleic anhydride, acrylic arid methacrylic acid methyl esters based copolymer is adhesive; Casein, soybean protein, synthetic proteins etc. are protein-based; The starch based such as etherification starch, dextrin such as oxidized starch, positive starch, urea organic phosphate starch, ethoxy etherification starch; The cellulose derivatives etc. such as carboxymethyl cellulose, hydroxyethylcellulose, Carboxymethyl Cellulose.
The amount of the adhesive in each coating layer used in the present invention, from the view point of printing applicability, coating applicability, is preferably 5 ~ 30 weight portions relative to the face material of 100 weight portions, more preferably 10 ~ 20 weight portions.
Coating method has no particular limits, as long as normally used coating machine, then uses any one all can.Coating machine and off-machine coater on machine, if coating machine on machine, the coating machines such as the roll coater such as size press coater, door roller coating machine, knife type coater, blade metering size press coating machine, Kohler coater, curtain coater can be used.In the present invention, in order to give flatness, more than the one deck in preferred face material coating layer be coated with knife type coater.
The coating weight of face material coating fluid is that every one side is in dry weight preferably 10 ~ 40g/m
2, more preferably 10 ~ 20g/m
2.When face material coating layer is several layers, described coating weight is the total amount of each layer.When face material coating layer is several layers, the coating weight of each layer suitably can adjust according to its purposes.
Fluffy white board of the present invention after manufacturing paper with pulp, or is arranged coating layer and after the drying steps of routine manufactures, also can be processed by smoothingization such as surface treatment step as required on body paper.In preferred mode, after adjustment is manufactured paper with pulp or arrange face material coating layer manufacture after moisture to the 3 ~ 10wt% of fluffy white board, more preferably about 4 ~ 8wt%, thus complete.In smoothing techniques, the conventional smoothing techniques device such as supercalendering (supercalender), gloss calendering (glosscalendar), soft calendaring, hot calendered, shoe press polish (shoecalendar) can be used.Smoothing techniques device can suitably on machine or machine use outward, can also the suitable adjustment form of pressue device, the quantity, intensification etc. of pressing clip.
Fluffy white board of the present invention can also use the known coating machine such as size press coater, door roller coating machine, in the scope not hindering effect of the present invention, also can coating starch, polyacrylamide, polyvinyl alcohol, Cypres etc., face material coating layer can also be set again after these being coated with.
The square area weight of fluffy white board of the present invention is 90 ~ 600g/m
2, generally speaking, use 150 ~ 450g/m
2left and right.Fluffy white board of the present invention, due to the thick height of paper, light weight, when being therefore used as printing, can alleviate the gross weight of books, magazine etc.In addition, the notepaper of notebook etc. is also suitable for.As paper device purposes, also can be suitable as the various molding sheet materials, the food paper using device that make use of flexibility, and utilize the body paper of instant noodles container, dixie cup etc. of thermal insulation.
Hereafter, based on embodiment, the present invention is further described, but in the nature of things, the present invention is not limited to these embodiments.Embodiment 1 ~ 6(table 1 hereafter) and comparative example 1 ~ 6(table 2) be all 3 layers and copy system.Should illustrate, the numerical value that display coordinates is the weight basis numerical value of solid part.
[embodiment 1]
< body paper >
N-BKP using 10%, the L-BKP of 90% coordinate (CSF400cc) as the paper pulp of outside layer and internal layer, the N-BKP with 10%, the L-BKP of 80%, 10% LBCTMP(Tenbec company produce, TEMCEL400/80, bulk is 3.4cm
3/ g, maple) as the cooperation in intermediate layer, each layer multilayer copied making sheet paper paper machine with the layer of table 1 than (the weight per unit area ratio of each layer) and carry out the system of copying and close layer, use size press coating starch on two sides to reach 1 ~ 2g/m to make coating weight
2, obtain body paper.
< primary coat coating fluid >
Modulation comprises powdered whiting (the Off ァ イ マ テ ッ Network company production of 100 weight portions, FMT90-HS) after face slip material, relative to 100 parts of face material, add the organic phosphate starch (Song Gu chemical company produces; ニ ー Le ガ system T55) of the styrenebutadiene copolymer emulsion of 7 weight portions, 4.5 weight portions, add the water retention agent of 0.08 weight portion, obtain the primary coat coating fluid that solid constituent concentration is 62wt%.
< top is coated with coating fluid >
Modulation comprises powdered whiting (the Off ァ イ マ テ ッ Network company production of 15 weight portions, FMT100), particulate kaolin (the カ ダ system company production of 57 weight portions, ア マ ゾ Application プ ラ ス), (イ メ リ ス company produces for the engineered kaolin of 28 weight portions, カ ピ system DG) pigment slurry after, relative to the face material of 100 weight portions, add the organic phosphate starch (Song Gu chemical company produces; ニ ー Le ガ system T55) of the styrenebutadiene copolymer emulsion of 16.5 weight portions, 2 weight portions, obtain the top painting coating fluid that solid constituent concentration is 50%.
< is coated with >
Use knife coating apparatus, by above-mentioned primary coat coating solution on the two sides of body paper, make to reach 7.5g/m in the every one side of dried solid Ingredients Weight
2, form interior coating layer, then, through drying steps, use air knife apparatus for coating, top is coated with coating solution on the two sides of body paper, makes to reach 7.5g/m in the every one side of dried solid Ingredients Weight
2, form outermost coating layer, obtaining weight per unit area is 190g/m
2white board.
[embodiment 2]
Except with 10% N-BKP, 40% L-BKP, 50% LBCTMP(Tenbec company produce, TEMCEL400/80, bulk is 3.4cm
3/ g, maple) as beyond the paper pulp cooperation in intermediate layer, carry out in the same manner as example 1, obtain white board.
[embodiment 3]
Except with 10% N-BKP, 65% L-BKP, 25% LBCTMP(Tenbec company produce, TEMCEL400/80, bulk is 3.4cm
3/ g, maple) as beyond the paper pulp cooperation in intermediate layer, carry out in the same manner as example 1, obtain white board.
[embodiment 4]
< body paper >
N-BKP using 10%, the L-BKP of 90% coordinate (CSF425cc) as the paper pulp of outside layer and internal layer, the N-BKP with 3%, the L-BKP of 57%, 40% LBCTMP(Tenbec company produce, TEMCEL400/80, bulk is 3.4cm
3/ g, maple) as the cooperation in intermediate layer, to copy making sheet paper paper machine than by each layer multilayer with the layer of table 1 and carry out the system of copying and close layer, use size press coating starch on two sides to reach 1 ~ 2g/m to make coating weight
2, obtain body paper.
< is coated with >
Use the primary coat coating fluid identical with embodiment 1 and push up and be coated with coating fluid, use knife coating apparatus, by above-mentioned primary coat coating solution on the two sides of body paper, make to reach 8g/m in the every one side of dried solid Ingredients Weight
2, then, through drying steps, use air knife apparatus for coating, top be coated with coating solution on the two sides of body paper, make to reach 8g/m in the every one side of dried solid Ingredients Weight
2, obtaining weight per unit area is 248g/m
2white board.
[embodiment 5]
Except not being coated with at reverse side, carry out in the mode identical with embodiment 4, obtaining weight per unit area is 242g/m
2white board.
[embodiment 6]
Except not carrying out the coating on two sides, carry out in the mode identical with embodiment 4, obtaining weight per unit area is 223g/m
2white board.
[comparative example 1]
Except make the paper pulp in the intermediate layer of embodiment 1 coordinate be 10% N-BKP, 85% L-BKP, 5% LBCTMP(Tenbec company produce, TEMCEL400/80, bulk is 3.4cm
3/ g, maple) beyond, carry out in the same manner as example 1, obtain white board.
[comparative example 2]
Coordinating except making the paper pulp in the intermediate layer of embodiment 1 is the L-BKP of 45%, the LBCTMP(Tenbec company production of 55%, and TEMCEL400/80, bulk is 3.4cm
3/ g, maple) beyond, carry out in the same manner as example 1, obtain white board.
[comparative example 3]
Be that LBCTMP(Tenbec company produces except making the LBCTMP of embodiment 1, ASPEN325/85, bulk is 2.3cm
3/ g) beyond, carry out in the same manner as example 1, obtain white board.
[comparative example 4]
Be that LBCTMP(Tenbec company produces except making the LBCTMP of embodiment 2, ASPEN325/85, bulk is 2.3cm
3/ g) beyond, carry out in the same way as in example 2, obtain white board.
[comparative example 5]
Be that the BCTMP(MillarWesternForest company that NL mixes produces except making the LBCTMP of embodiment 1, BlendedBCTMP, mixing the N material of 25%, the L material of 75%, bulk is 2.4cm
3/ g) beyond, carry out in the same manner as example 1, obtain white board.
[comparative example 6]
Except mismatch completely embodiment 1 LBCTMP, make L-BKP be except 90%, carry out in the same manner as example 1, obtain white board.
< evaluation test method >
Weight per unit area: JISP8124:2011
Thickness density: JISP8118:1998
Smoothness: JISP8155:2010
Printing adaptability (outward): with rowland (Roland) lithographic press (4 look) printing on the surface of fluffy white board, with the naked eye relative evaluation is carried out to the printing surface sense organ (tractability, inking uniformity, glossiness uniformity etc. of printed article) of printing.Metewand is as described below.
Zero=good, △=slightly poor, ×=poor
Processing and forming applicability: processing and forming becomes the overall merit disconnecting every line, break during pallet container
Zero=good, △=slightly poor, × bad.
Table 1 shows, and in the embodiment 1 ~ 6 in the application's claim within the scope of specific technical characteristic, weight per unit area is 190g/m
2left and right, 240g/m
2in arbitrary situation of left and right, be obtained for good evaluation for printing applicability (outward) and processing and forming applicability.Should illustrate, embodiment 6 is the examples not arranging face material coating layer, although compare with other embodiments or comparative example of arranging face material coating layer, result seems poor, but as not arranging the white board of face material coating layer, obtain the evaluation of practical excellent level.
On the other hand, although comparative example 1 employs the LBCTMP the same with embodiment 1, because fit rate is in the intermediate layer few, to 5%, therefore the density of white board uprises, and processing and forming applicability worsens.Comparative example 2 too, although employ the LBCTMP the same with embodiment 1, because fit rate is in the intermediate layer high to 55%, the therefore a little deterioration of the quality in intermediate layer and the density of white board is also low, print poor for applicability, a little deterioration of processing and forming applicability.
Comparative example 3 is bulks of cooperation 10% is 2.3cm
3the example of the LBCTMP of/g, because the bulk of LBCTMP is low, therefore the density of white board uprises, and processing and forming applicability worsens.Comparative example 4 is the examples using the low LBCTMP of the bulk identical with comparative example 3, intermediate layer is carried out to 50% cooperation, although therefore it becomes fluffy, and printing applicability, a little deterioration of processing and forming applicability.
Comparative example 5 is bulks of cooperation 10% is 2.4cm
3the example of the BCTMP of the NL mixing of/g, the density of white board is high, and printing applicability is slightly poor, and processing and forming applicability worsens.
Comparative example 6 is not owing to coordinating LBCTMP completely in the intermediate layer, and therefore the density of white board is high, and printing applicability is slightly poor, and processing and forming applicability worsens.
Claims (9)
1. white board, it is that the multilayer comprising more than 3 layers copies white board processed, it is characterized in that, only coordinates bulk for 3.0 ~ 3.8cm with the amount of the whole paper pulp raw material 10 ~ 50wt% relative to intermediate layer in the intermediate layer
3leaf wood bleached chemical thermomechanical paper pulp (LBCTMP) of/g, the system of outside layer, intermediate layer and internal layer being copied is closed layer and is obtained.
2. white board as claimed in claim 1, wherein, as described LBCTMP, coordinates and belongs to by maple the LBCTMP obtained.
3. white board as claimed in claim 1 or 2, wherein, density is 0.70 ~ 1.00g/m
2.
4. the white board according to any one of claim 1 ~ 3, wherein, described white board one side or two-sided on there is the coating layer comprising face material and adhesive of more than one deck.
5. white board as claimed in claim 4, wherein, in described coating layer, the interior coating layer adjacent with body paper comprises calcium carbonate as pigment, and the pigment of every 100 weight portions contains the described calcium carbonate of more than 50 weight portions.
6. the white board as described in claim 4 or 5, wherein, in described coating layer, outermost coating layer comprises flat pigment, and the pigment of every 100 weight portions contains the described flat face material of more than 50 weight portions.
7. the manufacture method of white board, it is the manufacture method that the multilayer comprising more than 3 layers copies white board processed, it is characterized in that, only coordinates bulk for 3.0 ~ 3.8cm with the amount of the whole paper pulp raw material 10 ~ 50wt% relative to intermediate layer in the intermediate layer
3leaf wood bleached chemical thermomechanical paper pulp (LBCTMP) of/g, the system of outside layer, intermediate layer and internal layer being copied closes layer.
8. the manufacture method of white board as claimed in claim 7, is characterized in that, described white board one side or two-sided on the coating layer that more than one deck comprises face material and adhesive is set.
9. the manufacture method of white board as claimed in claim 8, wherein, comprises the step being coated with at least one deck in described coating layer with knife type coater.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013193879 | 2013-09-19 | ||
| JP2013-193879 | 2013-09-19 | ||
| PCT/JP2014/074648 WO2015041276A1 (en) | 2013-09-19 | 2014-09-18 | White paperboard, and production method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105531418A true CN105531418A (en) | 2016-04-27 |
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| CN201480051582.4A Pending CN105531418A (en) | 2013-09-19 | 2014-09-18 | White paperboard, and production method therefor |
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|---|---|
| JP (1) | JP6452251B2 (en) |
| CN (1) | CN105531418A (en) |
| WO (1) | WO2015041276A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035199A (en) * | 2017-12-11 | 2018-05-15 | 福建省联盛纸业有限责任公司 | A kind of craft paper and preparation method thereof |
| CN117364543A (en) * | 2023-12-08 | 2024-01-09 | 山东博汇纸业股份有限公司 | High-whiteness and excellent-printing coated paper cup base paper and preparation method thereof |
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| JP6180038B2 (en) * | 2014-03-28 | 2017-08-16 | 特種東海製紙株式会社 | Fountain pen paper |
| JP2017031544A (en) * | 2015-07-29 | 2017-02-09 | 日本製紙株式会社 | Paper board for paper carton |
| JP6473427B2 (en) * | 2016-03-24 | 2019-02-20 | 北越コーポレーション株式会社 | Coated white paperboard and method for producing the same |
| JP6817042B2 (en) * | 2016-11-25 | 2021-01-20 | 日本製紙株式会社 | Composite white paperboard |
| WO2018163795A1 (en) * | 2017-03-06 | 2018-09-13 | 日本製紙株式会社 | Coated paper |
| JP6954259B2 (en) * | 2018-12-17 | 2021-10-27 | 王子ホールディングス株式会社 | White paperboard and coating white paperboard |
| JP7120085B2 (en) * | 2019-03-07 | 2022-08-17 | 王子ホールディングス株式会社 | Base material for foam insulation paper container, sheet for foam insulation paper container, foam insulation paper container and method for producing the same |
| EP3896222A1 (en) * | 2020-04-16 | 2021-10-20 | Metsä Board Oyj | A multilayered fibrous sheet, a method for making a multilayered fibrous sheet, and use of mechanical pulp |
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|---|---|
| WO2015041276A1 (en) | 2015-03-26 |
| JP6452251B2 (en) | 2019-01-23 |
| JPWO2015041276A1 (en) | 2017-03-02 |
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Application publication date: 20160427 |