CN102369324A - Base paper for paper container and laminate sheet for paper container using same - Google Patents
Base paper for paper container and laminate sheet for paper container using same Download PDFInfo
- Publication number
- CN102369324A CN102369324A CN2010800144563A CN201080014456A CN102369324A CN 102369324 A CN102369324 A CN 102369324A CN 2010800144563 A CN2010800144563 A CN 2010800144563A CN 201080014456 A CN201080014456 A CN 201080014456A CN 102369324 A CN102369324 A CN 102369324A
- Authority
- CN
- China
- Prior art keywords
- paper
- pulp
- internal layer
- container
- paper container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 19
- 239000000123 paper Substances 0.000 claims description 500
- 229920001131 Pulp (paper) Polymers 0.000 claims description 155
- 239000002994 raw material Substances 0.000 claims description 89
- 239000002655 kraft paper Substances 0.000 claims description 36
- 239000012744 reinforcing agent Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 25
- -1 alkyl ketene dimer Chemical compound 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- 238000004513 sizing Methods 0.000 claims description 23
- 229920002401 polyacrylamide Polymers 0.000 claims description 20
- 238000012360 testing method Methods 0.000 claims description 20
- 239000007864 aqueous solution Substances 0.000 claims description 14
- 238000007598 dipping method Methods 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 150000007524 organic acids Chemical class 0.000 claims description 3
- 235000005985 organic acids Nutrition 0.000 claims description 3
- 238000004537 pulping Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 23
- 238000007639 printing Methods 0.000 abstract description 22
- 239000000463 material Substances 0.000 abstract description 13
- 239000011122 softwood Substances 0.000 abstract 2
- 230000035515 penetration Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 209
- 238000002360 preparation method Methods 0.000 description 66
- 229920005989 resin Polymers 0.000 description 50
- 239000011347 resin Substances 0.000 description 50
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 27
- 238000004519 manufacturing process Methods 0.000 description 26
- 230000006378 damage Effects 0.000 description 23
- 230000000052 comparative effect Effects 0.000 description 17
- 230000035699 permeability Effects 0.000 description 17
- 229920002472 Starch Polymers 0.000 description 15
- 239000000835 fiber Substances 0.000 description 15
- 239000008107 starch Substances 0.000 description 15
- 235000019698 starch Nutrition 0.000 description 15
- 239000007767 bonding agent Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000010893 paper waste Substances 0.000 description 11
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical class CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 description 10
- 229920003656 Daiamid® Polymers 0.000 description 10
- 239000000049 pigment Substances 0.000 description 10
- 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 8
- 238000011049 filling Methods 0.000 description 8
- 230000008595 infiltration Effects 0.000 description 8
- 238000001764 infiltration Methods 0.000 description 8
- 239000001254 oxidized starch Substances 0.000 description 8
- 235000013808 oxidized starch Nutrition 0.000 description 8
- 238000007493 shaping process Methods 0.000 description 8
- 238000000576 coating method Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 6
- 125000002091 cationic group Chemical group 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 6
- 238000003475 lamination Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 235000013361 beverage Nutrition 0.000 description 5
- 235000013305 food Nutrition 0.000 description 5
- 239000011121 hardwood Substances 0.000 description 5
- 238000010030 laminating Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 235000004258 Cordia alliodora Nutrition 0.000 description 4
- 244000085692 Cordia alliodora Species 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 239000011087 paperboard Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012797 qualification Methods 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 3
- 238000004061 bleaching Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 125000000129 anionic group Chemical group 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
- 230000015572 biosynthetic process Effects 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 235000015203 fruit juice Nutrition 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 235000021262 sour milk Nutrition 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- DTCCVIYSGXONHU-CJHDCQNGSA-N (z)-2-(2-phenylethenyl)but-2-enedioic acid Chemical compound OC(=O)\C=C(C(O)=O)\C=CC1=CC=CC=C1 DTCCVIYSGXONHU-CJHDCQNGSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 238000003854 Surface Print Methods 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000009120 camo Nutrition 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
- 150000001768 cations Chemical class 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 230000002089 crippling effect Effects 0.000 description 1
- 239000002761 deinking Substances 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 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 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000113 methacrylic resin Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Images
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
- D21H11/04—Kraft or sulfate pulp
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
-
- 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
-
- 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
- D21H27/38—Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/75—Printability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
Abstract
Disclosed is a base paper for a paper container, on which a thermoplastic resin is laminated, having good processing suitability, high cross-sectional penetration resistance and good printing suitability. Specifically disclosed is a multilayer base paper for a paper container comprising an external layer, which is a paper layer located outermost, and an inner layer, which is a paper layer other than the outer layer, wherein the outer layer contains, in the starting pulp material thereof, 40 mass% or more of a softwood craft pulp, and the inner layer contains, in the starting pulp material thereof, 30 mass% or less of a softwood craft pulp.
Description
Technical field
The present invention relates to the plate made of paper that the paper container formation is used.Particularly relate to through multilayer and manufacture paper with pulp the paper container that obtains with body paper and use laminate with the paper container that body paper laminated thermoplastic resin forms at said paper container.
Background technology
Representational paper container waits backlash to be cut into the shape that needs for printing on the surface of paper, bending the processing back completion that is shaped again.
At content is under the situation of beverage, water or the wet goods food that contains liquid; The paper container needs resistance to water, oil resistivity etc.; So the laminate that uses surperficial back layer at body paper to be pressed with thermoplastic resins such as polyethylene forms method for processing and is usual method.At this moment, thermoplastic resin is used as sealant and its heat fusing, applying are accomplished.
The surface of giving the paper container of being made by above-mentioned laminate through thermoplastic resins such as polyethylene is with resistance to water, oil resistivity etc.But because of at sticking part, the section of body paper is exposed in the content, so the liquid in the content has from the section of laminate and is penetrated into the danger the body paper.This phenomenon was remarkable when particularly content contained big water gaging.And, be that the beverage/food that contains acidic aqueous solution of representative can promote the infiltration of solution from the body paper section with fruit juice, sour milk, sushi, the fluid seepage or the container that produce sometimes in the content are damaged.
As the method that addresses this problem, proposed to be used in method, the Continuous pressing device for stereo-pattern that sticking part turns back body paper and prevented that with the method that covers section the section portion of laminate from contacting with liquid.But the quantity of manufacturing procedure can increase, thereby can increase cost.
And, because of the paper container will carry out warpage processing, produce following problem sometimes, thereby concentrating on the top layer of kink, compression, stretching iso-stress destroy resin bed.In addition, the paper container applies from the outside and to fall etc. when impacting after having filled content, destroys resin bed from kink sometimes.When resin bed is destroyed, thereby seepage or bacterium etc. that content can take place to produce are thus invaded fatefulue problem concerning the paper container such as the corruption that produces content from external container.Therefore, it is extremely important that the paper container has the right property of processing such as the right property of warpage processing, anti-drop impact property.
On the other hand, the paper container with body paper in, as the countermeasure that prevents in body paper, to sneak into foreign matter and prevent the container variable color, should not use secondary stock and preferably use magma.The paper container with body paper in, use chemical pulp (particularly coniferous tree BK bleached kraft paper pulp (NBKP) and bleached hardwood kraft pulp (LBKP)) usually.With the strong NBKP of fibre strength is the trend that the flatness that the body paper of the paper that cooperates of major ingredient has a body paper surface reduces, reduces in the clarity of thermoplastic resin surface printing, particularly on the spot the uniformity of portion reduce, printed clear picture property reduction.Therefore, be difficult to be imbued with the printing of the high precise image of intention property, reduce as the value of the container of beverage etc.
On the other hand, when with LBKP being the major ingredient cooperation, the flatness on body paper surface improves, and is fit to carry out the printing of high precise image, but a little less than the fibre strength, is difficult to obtain the needed processing of paper container and fits property.
In addition; It is the sheet material through the various low grammes per square metres of device preparation of manufacturing paper with pulp that multilayer is manufactured paper with pulp; It is dry and process the method for the paper of high grammes per square metre again it to be counted the ply punching press; When manufacturing paper with pulp the paper of high grammes per square metre, the load during from drying is little, have advantage with the individual layer viewpoint of comparing the speed isoproductivity of can accelerating to manufacture paper with pulp of manufacturing paper with pulp.But, when being used for the body paper of foregoing paper container because of the paper that multilayer is manufactured paper with pulp between ply of paper intensity manufacture paper with pulp with individual layer and compare reduction, so being shaped to add to peel off between the ply of paper in man-hour becomes problem.
The countermeasure of intensity between the ply of paper of relevant solution paperboard, usual method is for through using bonding agent between specific paper pulp or specific ply of paper to make the method that peel strength improves between the ply of paper of paperboard.For example, in patent documentation 1, proposed through containing the method that bacterial fibers usually improves peel strength between ply of paper in the one deck at least that makes the paperboard that multilayer manufactures paper with pulp.In addition; The method of bonding agent coated heat curable water-soluble resin between in patent documentation 2, having proposed as ply of paper has proposed to use the method that contains bonding agent between the ply of paper that comprises anionic property group, the starch of cationic group more than 2 kinds in patent documentation 3.And in patent documentation 4, propose; Whole ply of papers for paperboard; Through aluminum sulfate, the agent of the dry paper power of polyacrylamide, calcium carbonate or sodium acid carbonate and the agent of the moistening paper power of daiamid epoxy chloropropane class that cooperates specified quantitative, can take into account to solve between the ply of paper that multilayer manufactures paper with pulp and peel off problem and acid resistance.
The prior art document
Patent documentation
Patent documentation 3 japanese kokai publication hei 5-230792 communiques
Summary of the invention
But, in the method for patent documentation 1, use the specific paper pulp that contains bacteria cellulose to have the shortcoming that improves at operability ineffective, cost.In the method for patent documentation 2, patent documentation 3, not only raise the cost, and be used for when body paper is given acid resistance and added internal sizing agent, the associativity variation of bonding agent and paper pulp fiber between ply of paper can't obtain the raising effect of being expected.In the method for patent documentation 4, fail to obtain the needed processing of paper container and fit property, produce the destruction of kink resin bed, applied the destruction that resin bed when impacting such as falls from the outside.
Particularly because of in containing the beverage of acidic aqueous solution, food, using, intensity can reduce when the body paper of laminate is given acid proof internal sizing agent so interpolation is used for.
Therefore; The invention reside in provides following paper container with laminate and body paper thereof; Be body paper, be formed with the laminate of synthetic resin layer on its surface with the multilayer production of boards; Have sufficient bending machining patience, anti-drop impact property, have preferably that good print is fitted property and be under the situation of the beverage that contains acidic aqueous solution such as fruit juice, sour milk, sushi, food, have and to suppress the high section permeability resistance of solution from the infiltration of body paper section at content.
For realizing above-mentioned purpose, the invention described in the scheme 1 is that a kind of paper container is used body paper, and it is to be used for that thermoplastic resin is arranged on the paper container to use body paper with the paper container that the body paper surface forms with the paper container of laminate, it is characterized in that,
This paper container uses body paper to be sandwich construction, and this sandwich construction is formed by the plural layer of using the multilayer pulping method to be formed with behind outer and the internal layer,
In the said skin, the coniferous tree kraft pulp fit rate in the total raw material paper pulp is more than the 40 quality %, and in the said internal layer, the coniferous tree kraft pulp fit rate in the total raw material paper pulp is below the 30 quality %.
Invention described in the scheme 2 be the paper container described in the scheme 1 with the related invention of body paper, it is characterized in that constituting of raw material paper pulp is combined with coniferous tree kraft pulp and broad leaf tree kraft pulp.
Invention described in the scheme 3 be the paper container described in scheme 1 or 2 with the related invention of body paper, it is characterized in that the coniferous tree kraft pulp fit rate in the total raw material paper pulp in the paper container body paper is below the 50 quality %.
Invention described in the scheme 4 is the related invention of each described paper container body paper in the scheme 1～3; It is characterized in that, make to be lower than 6,000,000 polyacrylamide as the molecular weight that adds dry paper power reinforcing agent in the slurry and to contain below 0.2 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) in the internal layer.
Invention described in the scheme 5 is that the paper container described in scheme 1,2,3 or 4 is with the related invention of body paper; It is characterized in that, make as the alkyl ketene dimer of internal sizing agent with respect to the paper container with total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) in the body paper contain 0.15 parts by mass above, be lower than 0.80 parts by mass.
Invention described in the scheme 6 is used laminate for each described paper container in scheme 1～5 with the paper container that the two sides laminated thermoplastic resin bed of body paper forms.
Paper container of the present invention can relax with body paper that the internal layer that adds kink in the warpage operation in man-hour in shaping is destroyed earlier and the compression, the stretching iso-stress that cause concentrate on the top layer of kink; Thereby the destruction of suppressing resin bed; After filling content, can suppress owing to the destruction that applies the resin bed that the impact that falls etc. produces from the outside.Be more than the 40 quality % promptly through making the NKP fit rate in the total raw material paper pulp in each outer ply of paper of the surperficial back side; And making the NKP fit rate in the total raw material paper pulp in whole internal layer ply of papers is below the 30 quality %; Can relax that the internal layer that adds kink in the warpage operation in man-hour in shaping is destroyed earlier and the compression, the stretching iso-stress that cause concentrate on the top layer of kink, thus the destruction of suppressing resin bed.In addition, be more than the 40 quality % through making the NKP fit rate in the total raw material paper pulp in each outer ply of paper of the surperficial back side, after filling content, can suppress owing to the destruction that applies the resin bed that the impact that falls etc. produces from the outside.
And in the present invention; Through the NKP fit rate in the total raw material paper pulp in the skin is preferably more than the 50 quality %; More preferably more than the 75 quality %; Further be preferably more than the 90 quality % destruction of the caused resin bed of warpage in the time of can effectively suppressing to be shaped processing and by the destruction that applies the resin bed that impact causes.
Paper container involved in the present invention is used laminate with the paper container that body paper is provided with the thermoplasticity synthetic resin layer; The manufacture paper with pulp paper of manufacturing shows that also excellent processing fits property even said body paper is a multilayer, and then can bring into play the printability that is fit to high precise image printing and high section permeability resistance.
In addition, obtain paper container involved in the present invention and can select suitable thermoplasticity synthetic resin, be processed as the paper container that is formed with superficial layer and use laminate with the technical staff of body paper.And then can be on this laminate to each container print, deburring, warpage processing etc., thereby process the paper container.
Description of drawings
Fig. 1 is for using the ideograph of paper container of the present invention with the roof type liquid container of laminate making.
Fig. 2 is expression 3 layers of paper container ideograph with body paper of manufacturing paper with pulp of the present invention.
Fig. 3 is expression 5 layers of paper container ideograph with body paper of manufacturing paper with pulp of the present invention.
Symbol description
1,2-is outer; 3,4,5-internal layer.
The specific embodiment
Below explanation is used for the specific embodiment of the related paper container of embodiment of the present invention with body paper.
The body paper of the sandwich construction that paper container use body paper involved in the present invention is made for manufacturing paper with pulp through multilayer.Satisfy that to be arranged in outermost ply of paper be that the coniferous tree kraft pulp fit rate of the total raw material paper pulp of skin is more than the 40 quality %, and to remove ply of paper outer be that coniferous tree kraft pulp fit rate in the total raw material paper pulp in the internal layer is the following conditions of 30 quality %.And when plural internal layer was set, each of plural internal layer layer satisfied aforementioned condition.As raw material paper pulp, from the health aspect, prevent the viewpoint of variable color, mainly use coniferous tree BK bleached kraft paper pulp and bleached hardwood kraft pulp.But technically, be not limited to these paper pulp.
< about paper pulp >
The paper container of the invention described above is with body paper such as following being described in detail; For will being that the paper making raw material of major ingredient is used body paper through the multilayer paper container of making of manufacturing paper with pulp with wood pulp and sizing agent, dry paper power reinforcing agent etc.; Manufacture paper with pulp through multilayer; When having high section permeability resistance, manufacture paper with pulp with individual layer that comparing manufactures paper with pulp speeds up etc., productivity ratio is good.
Multilayer among the present invention is manufactured paper with pulp and is meant that with its paper method of copying of counting ply punching press, drying, the preparation method of each individual layer does not have special qualification again through the various low grammes per square metre sheet materials of device preparation of manufacturing paper with pulp.Can suitably use fourdrinier wire to manufacture paper with pulp, press from both sides the various devices of manufacturing paper with pulp such as net is manufactured paper with pulp, cylinder is manufactured paper with pulp, but good because of productivity ratio, so manufacturing paper with pulp and press from both sides net, preferred fourdrinier wire manufactures paper with pulp.
As being used for the raw material paper pulp of paper container of the present invention, must contain coniferous tree kraft pulp (NKP) with each layer of body paper.As coniferous tree kraft pulp (NKP), coniferous tree BK bleached kraft paper pulp (NBKP), coniferous tree not BK bleached kraft paper pulp (NUKP), coniferous tree half bleaching kraft pulp (NSBKP) etc. are arranged.And in the present invention, because of also reducing cost, so preferred with broad leaf tree kraft pulp (LKP).As broad leaf tree kraft pulp (LKP), bleached hardwood kraft pulp (LBKP), broad leaf tree not BK bleached kraft paper pulp (LUKP), broad leaf tree half bleaching kraft pulp (LSBKP) etc. are arranged.And in the present invention, can not diminish in the scope of effect of the present invention, can and with other the sulfite cellulose of wood pulp, for example broad leaf tree sulfite cellulose, coniferous tree sulfite cellulose etc.; SGW (SGP), PGW (PGW), chip groundwood (refiner groundwood pulp) (RGP), hot-ground pulp (Thermo Groundwood Pulp) (TGP), the mechanical pulp of chemigroundwood pulp (CGP), ground wood pulp (GP), thermomechanical pulp (TMP) etc.; The known various paper pulp of the secondary stock of disassociation secondary stock, disassociation deinked pulp or the disassociation deinking bleaching secondary stock of processing by side cut waste paper, broken waste paper, an assorted bag waste paper, magazine waste paper, newspaper waste paper, flyer waste paper, office's waste paper, secondary corrugating material, first-class white waste paper, drawing paper waste paper, simile paper waste paper, core waste paper etc. etc. or the non-wood pulp made through chemistry or mechanical system by the non-wood-fiber of gombo hemp, fiber crops, reed etc. etc.
And paper container of the present invention is used for the packaging for foodstuff time spent,, preferably uses the bleached pulp of coniferous tree BK bleached kraft paper pulp (NBKP), bleached hardwood kraft pulp (LBKP) etc. from the viewpoint of health.
< about the anti-destructive of thermoplastic resin >
Paper container of the present invention is used body paper, at the thermoplastic resin of its surface laminated polyethylene etc. and form the paper container and use laminate, can be configured as the paper container, but need add the destruction of the resin bed after lamination does not take place man-hour in shaping.In addition, need be after filling content, even apply the impact of the usage range that falls etc. from the outside, yet aforesaid resin bed is not destroyed.
Paper container of the present invention uses body paper through to make NKP fit rate in the total raw material paper pulp in each outer field ply of paper of the surperficial back side be more than the 40 quality % and the NKP fit rate in the total raw material paper pulp in the ply of paper of whole internal layers is below the 30 quality %; Can relax that the internal layer that adds kink in the warpage operation in man-hour in shaping is destroyed earlier and the compression, the stretching iso-stress that cause concentrate on the top layer of kink, thus the destruction of suppressing resin bed.And through making the NKP fit rate in the total raw material paper pulp in each outer field ply of paper of the surperficial back side is more than the 40 quality %, after filling content, suppresses owing to the destruction that applies the resin bed that the impact that falls etc. produces from the outside.
And in the present invention; Through the NKP fit rate in the total raw material paper pulp in the skin is preferably more than the 50 quality %; More preferably more than the 75 quality %; Further be preferably more than the 90 quality %, thus the destruction of the caused resin bed of warpage when effectively suppressing to be shaped processing and owing to apply the destruction of the resin bed that impact causes.
< printability >
Paper container of the present invention with body paper in; Through the strong NKP of a large amount of cooperation fibre strengths; Can easily obtain above-mentioned processing and fit property, but the flatness on body paper surface can reduce, when printing on the surface behind the body paper laminated thermoplastic resin; The special uniformity of portion on the spot can reduce, thereby reduces the clarity of printed image.Therefore, be unfavorable for being imbued with the printing of the high precise image of intention property.Through to make NKP fit rate in the total raw material paper pulp in the skin be more than the 40 quality % and the NKP fit rate in the total raw material paper pulp in the internal layer is below the 30 quality %; When obtaining the right property of above-mentioned processing, can have the good printability that is fit to the high precise image of printing.
This is because through LKP soft at a large amount of match ratio NKP of internal layer, the flatness that is easy to get, during in multilayer is manufactured paper with pulp that each individual layer is overlapping, punching press, the LKP in the internal layer has cushioning effect, thereby relaxes the reduction of the flatness of NKP in the skin.And think the reduction that can suppress body paper surface flatness thus, the printability behind the body paper laminated thermoplastic resin is become well.And when plural internal layer was set, the internal layer of plural number all need satisfy aforementioned condition separately.And then through making the paper container use that the NKP fit rate in the total raw material paper pulp is below the 50 quality % in the body paper, the good printability that more is easy to get, thus preferred.
<beating degree of paper pulp >
In addition, the Canadian Standard Freeness (CSF) of the NKP in the raw material paper pulp is preferably more than the 450ml, below the 600ml as previously mentioned, and the CSF of LKP is preferably more than the 400ml, below the 550ml.When the making beating of raw material paper pulp was constantly carried out and reduced CSF, fiber combining strengthened, and is easy to get as the paper container with the needed paper power of body paper.But when the CSF that the CSF of NKP is lower than 450ml or LKP was lower than 400ml, fiber combining was strong excessively, and compression, the stretching iso-stress in the warpage operation that adds man-hour that is shaped concentrates on the top layer of kink, and resin bed is prone to be destroyed, and opposite processing is fitted property and can be reduced.And the CSF of NKP is greater than the CSF of 600ml or LKP during greater than 550ml, and fiber combining is low excessively, and when applying the impact that falls etc. from the outside, resin bed is prone to be destroyed.And, like the said paper layer configuration chap in back, thereby be difficult to obtain section permeability resistance as target of the present invention.
In the present invention; CSF through making the NKP in the raw material paper pulp and the CSF of LKP can appropriateness adjustment fiber combining in above-mentioned scope, can obtain foregoing as the paper container with the needed paper power of body paper; When the resin bed in the warpage operation when suppressing to be shaped processing destroys and takes place; Even after filling content, apply the impact of the usage range that falls etc. from the outside, the destruction that also can easily suppress resin bed.And it is because of being easy to get, thereby preferred as the section permeability resistance of target of the present invention.
< adding dry paper power reinforcing agent in the slurry >
In addition, paper container of the present invention with body paper in, concentrate the strain takes place to absorb not manifest for making in film side at fragile internal layer owing to crippling stress, the intensity of preferred internal layer is low as far as possible, but the viewpoint from making, intensity that need be to a certain degree.Therefore; As adding dry paper power reinforcing agent in the slurry of internal layer, preferably with molecular weight be lower than 6,000,000, preferred molecular weight is that 100,000～4,000,000 polyacrylamide contains below 0.2 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) in the internal layer.As the example of polyacrylamide, the anionic property of can giving an example, cationic and amphoterisation polyacrylamide of forming because of the modification of partial cation property etc.As adding dry paper power reinforcing agent in the slurry, be lower than 6,000,000 polyacrylamide through cooperating molecular weight, fiber combining is strengthened, be easy to get as the paper container with the needed paper power of body paper.But fiber combining is crossed when strong, adds the top layer that compression, stretching iso-stress in the warpage operation in man-hour concentrates on kink because of shaping, and resin bed is prone to be destroyed, so the property reduction is fitted in opposite processing.
All in the internal layer; Content through making said polyacrylamide is below 0.2 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality); Can appropriateness adjust the fiber combining in the internal layer; Can relax that the internal layer that adds kink in the warpage operation in man-hour in shaping is destroyed earlier and the compression, the stretching iso-stress that cause concentrate on the top layer of kink, thus the destruction of suppressing resin bed.
As adding dry paper power reinforcing agent in the slurry; During starch based such as use cationic starch, amphoteric starch, oxidized starch; Through appropriateness adjustment fiber combining,, preferably contain the polyacrylamide that carries out the appropriateness adjustment easily though can obtain the effect same with polyacrylamide.
< section impermeabilisation >
Paper container of the present invention needs high section permeability resistance with body paper.Specifically; 1 edge lengths that the low density polyethylene (LDPE) of thickness 30 μ m is fitted in the body paper two sides is the square test film of 10.0cm, and must make this test film is that 45 hours quality increment rate of aqueous solutions of organic acids dipping is lower than 5.0 quality % at 23 ℃, pH regulator.During greater than 2.0mm, can become great complaint object, because of the seepage distance of water of heat-sealing bonding portion so in above-mentioned test, section permeability resistance target originally is that the seepage distance of titer is lower than 2.0mm.
But, because of having the part deviation, seepage distance is difficult to carry out objective evaluation, so, set the desired value of section permeability resistance of the present invention according to the mass change of following titer when infiltration test film.The density of supposing body paper is 0.75g/cm
3, body paper the expansion rate in water when infiltration be 20% o'clock, for the allowed band that makes the titer infiltration is lower than 2.0mm, can derives and permeate caused quality increment rate by titer and be lower than 5.0 quality %.In addition, as condition determination, under 23 ℃ of conditions with test film dipping 5 hours after, the quality measurement increment rate.As aforesaid titer, use to be equivalent to that acid food, pH regulator are 4, concentration is the aqueous citric acid solution of 1.0 quality %.
In addition, paper container of the present invention needs high section permeability resistance with body paper, but in order to suppress the liquid infiltration, reduce permeable fine pore, reduce continuous pore volume, the countermeasure of water proofing property etc. that improves paper base material is effective.About reducing fine pore or reduce continuous pore volume, the freedom of raw material paper pulp becomes very big factor of determination.From this point, in the present invention, the CSF that preferably makes the NKP in the raw material paper pulp is below the 600ml and makes the CSF of LKP is below the 550ml.Because of the CSF of NKP greater than the CSF of 600ml or LKP during greater than 550ml, paper layer configuration chap, thereby be difficult to obtain section permeability resistance as target of the present invention.
< improve the section permeability resistance and use internal sizing agent >
And paper container of the present invention with body paper in, preferably make as the alkyl ketene dimer of internal sizing agent with respect to the paper container with total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) in the body paper contain 0.15 parts by mass above, be lower than 0.80 parts by mass.Through alkyl ketene dimer is contained more than 0.15 parts by mass, can make aforesaid section permeability resistance become good.Though the multibreak more permeability resistance of the addition of alkyl ketene dimer is good more, even add more than 0.80 parts by mass, the raising of section permeability resistance has also arrived the summit, and is nonsensical from economically.
When using rosin sizing agent as internal sizing agent, because of applying glue property reduction under the low condition of the pH of the aqueous solution, so, diminishing with respect to the acidic aqueous solution sizing efficiency, the section permeability resistance is poor.On the other hand, even alkyl ketene dimer also demonstrates sufficient water proofing property under the low condition of the pH of the aqueous solution, therefore, and even also can expect applying glue property highly for acidic aqueous solution, thus preferred.The internal sizing agent of alkyl ketene dimer etc. can contain in constituting the arbitrary layer of ply of paper of paper container of the present invention with body paper, preferably in all ply of papers, contains.
And when starch that adds cationic starch, amphoteric starch, oxidized starch etc. and/or aluminum sulfate, have and improve the effect that alkyl ketene dimer adheres to paper pulp, the section permeability resistance is become well, thus preferred.
< grammes per square metre (density) >
In addition, paper container of the present invention uses the preferred grammes per square metre of body paper to be 170g/m
2More than, be lower than 350g/m
2The paper container needs paper power and rigidity with body paper in view of its purposes, preferred grammes per square metre is 170g/m
2More than.Paper power increased when grammes per square metre increased, even apply the impact that falls etc. from the outside, resin bed also is difficult to be destroyed.On the other hand, add in the warpage operation in man-hour in shaping when increasing, only increase, thereby be applied to the stress increase on the resin bed, destroy because of warpage makes resin bed easily because of body paper thickness part just makes the radius in the kink outside because of grammes per square metre.Use body paper as paper container of the present invention, preferred grammes per square metre is lower than 350g/m
2
In the present invention, the grammes per square metre of body paper is measured according to JIS P 8124 " paper and paperboard-measuring grammage method ", and density is measured according to JIS P 8118 " test method of paper and paperboard-thickness and density ".
< prevent layer from peeling off >
In addition, paper container of the present invention preferably contains the moistening paper power reinforcing agent of doing and representing with daiamid epoxy chloropropane resinoid with body paper.Through containing moistening paper power reinforcing agent, be cut off the phenomenon that causes that expansion, fine pore enlarge because of the fiber combining between paper pulp in the time of can being suppressed at the liquid infiltration.Can easily suppress expansion because of the caused body paper that absorbs water, thus preferred.And, because of having, daiamid epoxy chloropropane resinoid improves the adhesion effect of alkyl ketene dimer to paper pulp, thus preferred.The content of moistening paper power reinforcing agent, being preferably with respect to the paper container is the scope that 0.1 parts by mass is above, 0.5 parts by mass is following with total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) in the body paper.Moistening paper power reinforcing agent can contain in constituting arbitrary layer of paper container of the present invention with the ply of paper of body paper, but preferably in all ply of papers, contains.
And paper container of the present invention preferably uses bonding agent with body paper between each ply of paper.The interlayer bonding agent does not have special qualification, but can be fit to use starch, polyacrylamide of cationic starch, amphoteric starch, oxidized starch etc. etc.
In addition, paper container of the present invention with body paper also can be through cationic starch, amphoteric starch, oxidized starch etc. starch, polyvinyl alcohol, polyacrylamide, so-called Cypres (styrene-acrylonitrile copolymer acid resin, styrene maleic acid resinoid, styrene methacrylic resin, olefine kind resin, esters resin etc.) etc. carry out top sizing and handle.Coating process as Cypres does not have special qualification, the size press of can giving an example, gate roll coater, expectation amount size press, press polish size press (calendar size press) etc.
< coating layer >
In addition, paper container of the present invention also can be provided with the pigment application layer on the surface with body paper.As the spendable pigment of coating layer, calcium carbonate, kaolin clay, talcum, titanium dioxide, barium sulfate, synthetic silica, plastic cement pigment etc. are arranged, in these pigment, can select a kind of use, also can mix more than two kinds and use.Bonding agent (adhesive) as the pigment application layer does not have qualification especially, can from known resin, suitably select.In the present invention, the material that can in water, dissolve or disperse such as preferred water soluble macromolecular bonding agent, synthetic emulsion class bonding agent.As the water soluble polymer bonding agent, can give an example starch or its modifier, polyvinyl alcohol and modifier, casein etc.In addition, as synthetic emulsion class bonding agent, can use known synthetic emulsion class bonding agents such as crylic acid resin emulsion, vinyl acetate resin class emulsion, styrene-butadiene latex, polyurethane type resin emulsion.And its coating weight is 5～30g/m at each single face
2About, also can make these form individual layers or more than 2 layers or 2 layers.
(laminate)
Paper container of the present invention with laminate through forming at the surperficial laminated thermoplastic resin of above-mentioned paper container with body paper.On the surface of paper container with body paper, being provided with to improve connecting airtight of thermoplastic resin is the sticking priming coat of purpose, maybe can carry out Corona discharge Treatment.But because of the operation easy, so preferably carry out direct Corona discharge Treatment with the surface of body paper at the paper container.
The laminating method of resin bed has extruding layer platen press, co-extrusion laminating method, dried laminating, wet laminating etc., for obtaining thermoplastic resin and the paper container high adhesiveness with body paper, preferred extruding layer platen press, co-extrusion laminating method.In addition, also can be preferably and T die coetrusion and with and form plural layers.
Resin as forming thermoplastic resin can use polypropylene (PP), polyethylene (PE), PETG (PET), polybutylene terephthalate (PBT) etc.The thickness of resin bed can suitably be set according to purpose in the laminate, for example is 3～100 μ m, is preferably 10～50 μ m.
The formation of this thermoplasticity synthetic resin layer can be carried out on body paper at the paper container based on concrete content, incrustation etc.Therefore, add processing accepting the downstream production line that the paper container supplies with body paper, paper feeding container user can be provided.
Embodiment
Followingly specify the present invention, but the invention is not restricted to these according to embodiment and Comparative Examples.And the % among the embodiment representes all-mass %.Following project is measured, estimated to paper container in embodiment and Comparative Examples, making with body paper.
< resin bed that warpage caused that shaping adds man-hour destroys >
On the two sides of the paper container that becomes base material with body paper, using the extruding layer platen press is that 30 μ m carry out lamination with ldpe resin by every layer thickness.Resulting paper container is cut off with as test film by the square of 1 limit 10.0cm with laminate; To serve as that the test film that bends after axle folding 2 is rolled over is used the clamping treating apparatus that is formed by metallic roll/metallic roll with MD direction of principal axis or CD direction of principal axis; Make direction of passage vertical, being that 50m/min, clamping pressure are that 50kN/m carries out pressurized treatments through speed with bending axle.After the pressurized treatments, visual observations is estimated according to following standard the destruction of the resin bed on the two sides of bending axial region.
And the MD direction of principal axis is identical direction with the direction of manufacturing paper with pulp, and the CD direction of principal axis is to be the direction (manufacturing paper with pulp laterally) at right angle with the direction of manufacturing paper with pulp.
◎: the destruction of not finding to have resin bed.
Zero: find that resin bed only has small destruction, but only be that single face destroys, do not influence practicality.
△: find to have the destruction of resin bed, and destruction is the two sides.
*: find that resin bed has very big destruction.
< resin bed that drop impact caused after the filling destroys >
On the two sides of the paper container that becomes base material with body paper, using the extruding layer platen press is that 30 μ m carry out lamination with ldpe resin by every layer thickness.Use resulting paper container as shown in Figure 1 with the roof type paper container of laminate making.The length of side of container bottoms and height: base A is 55mm, and base B is 55mm, and height C is 70mm.The making of this paper container is carried out through following operation.
At first the paper container is bent line processing with laminate, be processed into the blank plate of monolithic through stamping-out.And, this blank plate carried out side seal after, carry out the form seal of container bottoms with paper vessel filling machine, fill water, with behind the form seal of top and obtain as the 200ml of content.
This paper container judged in the practicality with following test method have or not full intensity.
On concrete surface, carry out shatter test from the height of 100cm repeatedly by the bottom surface side of paper container, with visual observations termination test to the time as the seepage of the water of content, with the drop number of this time point as drop strength.10 paper containers are carried out shatter test, are average more than 4 times like drop strength, then have the full intensity in the practicality.
◎: drop strength is average more than 8 times
Zero: drop strength be average more than 4 times, be lower than 8 times
△: drop strength be average more than 2 times, be lower than 4 times
*: drop number is on average being lower than 2 times
< the quality increment rate when being immersed in the aqueous solutions of organic acids >
Mensuration becomes the grammes per square metre of the paper container of base material with body paper, and on the two sides of paper container with body paper, using the extruding layer platen press is that 30 μ m carry out lamination with ldpe resin by every layer thickness.Resulting paper container is cut off with as test film by the square of 1 limit 10.0cm with laminate.After the quality of determination test sheet, be dipping 5 hours in the aqueous citric acid solution of 4 concentration 1.0% at 23 ℃, pH regulator with test film.Behind the dipping, will be attached to after the abundant wiping of the aqueous solution on surface, the quality of determination test sheet.Measure the result with these and be the basis, by computes quality increment rate.The quality increment rate can suppress the infiltration of acidic aqueous solution from the body paper section after processing that is shaped as being lower than 5.0 quality %.
Quality increment rate={ the paper container in (quality of the test film before the quality-dipping of the test film behind the dipping)/test film is with the quality of body paper } * 100
< printability >
On the two sides of the paper container that becomes base material with body paper, using the extruding layer platen press is that 30 μ m carry out lamination with ldpe resin by every layer thickness.Resulting paper container is cut off with as test film by the square of 1 limit 10.0cm with laminate.To resulting test film, the hectographic printing that use art paper is used always in using is printed to contain the black 0.5ml of measuring with RI type printing machine (the made RI-3 of the bright making of Co., Ltd.) with printing ink (system HYECOO is red in Toyo Ink Co., Ltd.).After the printing treatment,, estimate according to following standard with the situation occurred (field printing speckle) of middle patch on the spot of visual observations Printing Department.
◎: no field printing speckle, printing ink is by evenly printing.
Zero: looking only has few field printing speckle, for not influencing the degree of high precise image printing.
△: looked to be not suitable for carrying out high precise image printing by the field printing speckle.
*: find has the field printing speckle comprehensively, is not suitable for using with body paper as the paper container.
[embodiment 1]
(outer) with paper stock slip A
The bleached hardwood kraft pulp (LBKP) of the coniferous tree BK bleached kraft paper pulp (NBKP) of Canadian Standard Freeness (CSF) 500ml and CSF450ml is cooperated with 40/60 mass ratio, as raw material paper pulp.In raw material paper pulp slip; To add 0.3 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the polyacrylamide of the molecular weight 2,500,000 of dry paper power reinforcing agent; To add 0.5 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the alkyl ketene dimer of internal sizing agent; After will adding 0.1 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the daiamid epoxy chloropropane resinoid of moistening paper power reinforcing agent, using NaOH to regulate pH is that 7.5 back conducts are outer with paper stock slip A.
(internal layer with the paper stock slip a)
The LBKP of the NBKP of CSF500ml and CSF550ml is cooperated with 15/85 mass ratio, as raw material paper pulp.In raw material paper pulp slip; To add 0.1 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the polyacrylamide of the molecular weight 2,500,000 of dry paper power reinforcing agent; To add 0.5 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the alkyl ketene dimer of internal sizing agent; After will adding 0.1 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the daiamid epoxy chloropropane resinoid of moistening paper power reinforcing agent, use NaOH regulate pH be 7.5 backs as internal layer with paper stock slip a.
Use Ford Lin Nier (Fourdrinier) formula fourdrinier paper machine to be made into the sheet material of each individual layer of 2 layers of skins, 1 layer of the internal layer of the 3 layers of usefulness of manufacturing paper with pulp these paper stock slips.Outer 1 and outer 2 use skin with paper stock slip A, with grammes per square metre 49g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a, with grammes per square metre 99g/m
2Preparation, the grammes per square metre ratio of skin 1, internal layer 1, skin 2 is 25: 50: 25.L Water Paper be two sides at internal layer 1 as the interlayer bonding agent with oxidized starch with every single face 1.0g/m
2Spray, as shown in Figure 2ly begin by outer 1, internal layer 1, outer 2 order overlappingly from above, fit with punching press.Secondly, resulting paper is coated with through the Cypres aqueous solution of press polish size press (calendar size press) with the concentration 4.0% of oxidized starch, making the two sides is 1.0g/m
2, obtain grammes per square metre 200g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 2]
Except NBKP and LBKP are cooperated with 50/50 mass ratio, outer 1 and outer 2 use with outer skin with the same making of paper stock slip A with paper stock slip A1, with grammes per square metre 79g/m
2Preparation is except internal layer 1 uses internal layer with paper stock slip a, with grammes per square metre 159g/m
2Beyond the preparation, same with embodiment 1, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 3]
Except adding 0.3 parts by mass, aluminum sulfate added 0.08 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the alkyl ketene dimer of internal sizing agent; Skin 1 and outer 2 uses and the outer skin of making equally with paper stock slip A1 are with paper stock slip A2, with grammes per square metre 79g/m
2Preparation; Except adding 0.3 parts by mass, aluminum sulfate added 0.08 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the alkyl ketene dimer of internal sizing agent; Internal layer 1 uses with internal layer with the internal layer of the same making of paper stock slip a with paper stock slip a1, with grammes per square metre 159g/m
2Preparation, same with embodiment 1 except that above-mentioned, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 4]
Except skin 1 and outer 2 uses outer with paper stock slip A1, with grammes per square metre 62g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a, with grammes per square metre 123g/m
2Beyond the preparation, same with embodiment 1, obtain grammes per square metre 250g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 5]
Except skin 1 and outer 2 uses outer with paper stock slip A1, with grammes per square metre 49g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a, with grammes per square metre 99g/m
2Beyond the preparation, same with embodiment 1, obtain grammes per square metre 200g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 6]
Except NBKP and LBKP are cooperated with 75/25 mass ratio, outer 1 and outer 2 use with outer skin with the same making of paper stock slip A with paper stock slip A3, with grammes per square metre 63g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a, with grammes per square metre 191g/m
2Preparation, same except outer 1, internal layer 1, outer 2 grammes per square metre ratio are 20: 60: 20 with embodiment 1, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 7]
Except skin 1 and outer 2 uses outer with paper stock slip A3, with grammes per square metre 49g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a, with grammes per square metre 149g/m
2Preparation, the grammes per square metre ratio of skin 1, internal layer 1, skin 2 is beyond 20: 60: 20, and is same with embodiment 1, obtains grammes per square metre 250g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 8]
Except skin 1 and outer 2 uses outer with paper stock slip A3, with grammes per square metre 63g/m
2Preparation, internal layer 1 except NBKP and LBKP are cooperated with 30/70 mass ratio, use with internal layer with paper stock slip a equally the internal layer made from paper stock slip a2, with grammes per square metre 191g/m
2Preparation, same except outer 1, internal layer 1, outer 2 grammes per square metre ratio are 20: 60: 20 with embodiment 1, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 9]
Except skin 1 and outer 2 uses outer with paper stock slip A3, with grammes per square metre 79g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a2, with grammes per square metre 151g/m
2Beyond the preparation, same with embodiment 1, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 10]
Except NBKP and LBKP are cooperated with 90/10 mass ratio, outer 1 and outer 2 use with outer skin with the same making of paper stock slip A with paper stock slip A4, with grammes per square metre 63g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a, with grammes per square metre 191g/m
2Preparation, same except outer 1, internal layer 1, outer 2 grammes per square metre ratio are 20: 60: 20 with embodiment 1, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 11]
Except skin 1 and outer 2 uses outer with paper stock slip A4, with grammes per square metre 79g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a, with grammes per square metre 159g/m
2Beyond the preparation, same with embodiment 1, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 12]
(outer) with paper stock slip B
The LBKP of the NBKP of CSF500ml and CSF450ml is cooperated with 75/25 mass ratio, as raw material paper pulp.In raw material paper pulp slip; To add 0.3 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the polyacrylamide of the molecular weight 2,500,000 of dry paper power reinforcing agent; To add 0.5 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the alkyl ketene dimer of internal sizing agent; After will adding 0.1 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the daiamid epoxy chloropropane resinoid of moistening paper power reinforcing agent; Using NaOH to regulate pH is 7.5, as skin with paper stock slip B.
(internal layer is with paper stock slip b)
The LBKP of the NBKP of CSF550ml and CSF500ml is cooperated with 20/80 mass ratio, as raw material paper pulp.In raw material paper pulp slip; To add 0.2 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the polyacrylamide of the molecular weight 2,500,000 of dry paper power reinforcing agent; To add 0.5 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the alkyl ketene dimer of internal sizing agent; After will adding 0.1 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the daiamid epoxy chloropropane resinoid of moistening paper power reinforcing agent; Using NaOH to regulate pH is 7.5, as internal layer with paper stock slip b.
(internal layer is with paper stock slip c)
With the LBKP of CSF550ml as raw material paper pulp.In raw material paper pulp slip; To add 0.1 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the polyacrylamide of the molecular weight 2,500,000 of dry paper power reinforcing agent; To add 0.5 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the alkyl ketene dimer of internal sizing agent; After will adding 0.1 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the daiamid epoxy chloropropane resinoid of moistening paper power reinforcing agent; Using NaOH to regulate pH is 7.5, as internal layer with paper stock slip c.
Use Ford Lin Nier (Fourdrinier) formula fourdrinier paper machine to process the sheet material of each individual layer of 5 layers of outer 2 layers of the usefulness of manufacturing paper with pulp, 3 layers of internal layers these paper stock slips.Outer 1 and outer 2 use skin with paper stock slip B, with grammes per square metre 62g/m
2Preparation, internal layer 1 and internal layer 3 use internal layer with paper stock slip b, with grammes per square metre 31g/m
2Preparation, internal layer 2 uses internal layer with paper stock slip c, with grammes per square metre 127g/m
2Preparation, the grammes per square metre ratio of skin 1, internal layer 1, internal layer 2, internal layer 3, skin 2 is 20: 10: 40: 10: 20.L Water Paper is will be as the oxidized starch of interlayer bonding agent with each single face 1.0g/m on the two sides of internal layer 1, internal layer 2, internal layer 3
2Spray, as shown in Figure 3ly begin by outer 1, internal layer 1, internal layer 2, internal layer 3, outer 2 order overlappingly from above, fit with punching press.Then, with resulting paper a Cypres aqueous solution, make the two sides be 1.0g/m through press polish size press (calendar size press) coating oxidized starch concentration 4.0%
2, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 13]
Except skin 1 and outer 2 uses outer with paper stock slip B, with grammes per square metre 49g/m
2Preparation, internal layer 1 and internal layer 3 use internal layer with paper stock slip b, with grammes per square metre 24g/m
2Preparation, internal layer 2 uses internal layer with paper stock slip c, with grammes per square metre 97g/m
2Beyond the preparation, same with embodiment 12, obtain grammes per square metre 250g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 14]
Except skin 1 and outer 2 uses outer with paper stock slip B, with grammes per square metre 62g/m
2Preparation, internal layer 1 and internal layer 3 cooperate NBKP and LBKP with 30/70 mass ratio beyond, use with internal layer with paper stock slip b equally the internal layer made from paper stock slip b1, with grammes per square metre 31g/m
2Preparation, internal layer 2 except the LBKP of the NBKP of CSF600ml and CSF500ml being cooperated with 10/90 mass ratio as raw material paper pulp, use with internal layer with paper stock slip c equally the internal layer made from paper stock slip c1, with grammes per square metre 127g/m
2Preparation, same with embodiment 12 except that above-mentioned, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 15]
Except skin 1 and outer 2 uses outer with paper stock slip B, with grammes per square metre 48g/m
2Preparation, internal layer 1 and internal layer 3 use internal layer with paper stock slip b1, with grammes per square metre 24g/m
2Preparation, internal layer 2 uses internal layer with paper stock slip c1, with grammes per square metre 99g/m
2Beyond the preparation, same with embodiment 12, obtain grammes per square metre 250g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 16]
Except skin 1 and outer 2 uses outer with paper stock slip B, with grammes per square metre 94g/m
2Preparation, internal layer 1 and internal layer 3 use internal layer with paper stock slip b1, with grammes per square metre 47g/m
2Preparation, internal layer 2 uses internal layer with paper stock slip c1, with grammes per square metre 31g/m
2Preparation, the grammes per square metre ratio of skin 1, internal layer 1, internal layer 2, internal layer 3, skin 2 is 30: 15: 10: same beyond 15: 30 with embodiment 12, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 17]
Except NBKP and LBKP are cooperated with 90/10 mass ratio, outer 1 and outer 2 use with outer skin with the same making of paper stock slip B with paper stock slip B1, with grammes per square metre 62g/m
2Preparation, internal layer 1 and internal layer 3 use internal layer with paper stock slip b, with grammes per square metre 31g/m
2Preparation, internal layer 2 except NBKP and LBKP are cooperated with 15/85 mass ratio, use with internal layer with paper stock slip c1 equally the internal layer made from paper stock slip c2, with grammes per square metre 127g/m
2Preparation, same with embodiment 12 except that above-mentioned, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[embodiment 18]
(outer) with paper stock slip C
The broad leaf tree kraft pulp (LBKP) of the coniferous tree kraft pulp (NBKP) of Canadian Standard Freeness (CSF) 550ml and CSF450ml is cooperated with 75/25 mass ratio, as raw material paper pulp.In raw material paper pulp slip; To add 0.3 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the polyacrylamide of the molecular weight 2,500,000 of dry paper power reinforcing agent; To add 0.3 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the alkyl ketene dimer of internal sizing agent; Aluminum sulfate is added 0.08 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality); After will adding 0.1 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the daiamid epoxy chloropropane resinoid of moistening paper power reinforcing agent; Using NaOH to regulate pH is 7.5, as skin with paper stock slip C.
(internal layer is with paper stock slip d)
With the LBKP of CSF550ml as raw material paper pulp.In raw material paper pulp slip; To add 0.1 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the polyacrylamide of the molecular weight 2,500,000 of dry paper power reinforcing agent; To add 0.3 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the alkyl ketene dimer of internal sizing agent; Aluminum sulfate is added 0.08 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality); After will adding 0.1 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the daiamid epoxy chloropropane resinoid of moistening paper power reinforcing agent; Using NaOH to regulate pH is 7.5, as internal layer with paper stock slip d.
Except skin 1 and outer 2 uses outer with paper stock slip B, with grammes per square metre 39g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip b, with grammes per square metre 119g/m
2Preparation, the grammes per square metre ratio of skin 1, internal layer 1, skin 2 is beyond 20: 60: 20, and is same with embodiment 1, obtains grammes per square metre 200g/m
2, density 0.75g/cm
3Body paper.
The surface and the back side at this body paper; It is Ultra white 90 (clay, Engelhardt corporate system) 60 parts by mass, Brilliant 15 (precipitated calcium carbonate, white lapicide's industry corporate system) 40 parts by mass that pigment is cooperated; As adhesive; For being that the pigment application liquid of 16 parts by mass carries out rod coating, drying with Nipol LX407F in per 100 parts by mass pigment (modified butadiene-styrene latex, Japanese Zeon corporate system), with coating weight 15g/m
2The pigment application layer be arranged on the surface and the back side, make grammes per square metre 230g/m
2The paper container body paper of coating paper mold.
[embodiment 19]
(outer) with paper stock slip c1
The broad leaf tree kraft pulp (LBKP) of the coniferous tree kraft pulp (NBKP) of Canadian Standard Freeness (CSF) 550ml and CSF450ml is cooperated with 75/25 mass ratio, as raw material paper pulp.In raw material paper pulp slip; To add 0.1 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the polyacrylamide of the molecular weight 2,500,000 of dry paper power reinforcing agent; To add 0.75 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the rosin of internal sizing agent; Aluminum sulfate is added 0.2 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality); After will adding 0.3 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the amphoteric starch of dry paper power reinforcing agent, using NaOH to regulate pH is 7.5, as skin with paper stock slip C.
(internal layer is with paper stock slip d1)
With the LBKP of CSF550ml as raw material paper pulp.In raw material paper pulp slip; To add 0.75 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality) as the rosin of internal sizing agent; After aluminum sulfate added 0.2 parts by mass with respect to total raw material paper pulp 100 parts by mass (absolute dried paper pulp quality); Using NaOH to regulate pH is 7.5, as internal layer with paper stock slip d1.
Except skin 1 and outer 2 uses outer with paper stock slip B, with grammes per square metre 39g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip b, with grammes per square metre 119g/m
2Preparation, the grammes per square metre ratio of skin 1, internal layer 1, skin 2 is beyond 20: 60: 20, and is same with embodiment 1, obtains grammes per square metre 200g/m
2, density 0.75g/cm
3Body paper.
At the surface and the back side of this body paper, with embodiment 18 the pigment application layer is set equally, make grammes per square metre 230g/m
2The paper container body paper of coating paper mold.
[Comparative Examples 1]
Except NBKP and LBKP are cooperated with 20/80 mass ratio, outer 1 and outer 2 use with outer skin with the same making of paper stock slip A with paper stock slip A5, with grammes per square metre 62g/m
2Preparation, except NBKP and LBKP are cooperated with 20/80 mass ratio, internal layer 1 use with internal layer with paper stock slip a equally the internal layer made from paper stock slip a3, with grammes per square metre 123g/m
2Preparation, same except outer 1, internal layer 1, outer 2 grammes per square metre ratio are 25: 50: 25 with embodiment 1, obtain grammes per square metre 250g/m
2, density 0.75g/cm
3Paper container body paper.
[Comparative Examples 2]
Except NBKP and LBKP are cooperated with 15/85 mass ratio, outer 1 and outer 2 use with outer skin with the same making of paper stock slip A with paper stock slip A6, with grammes per square metre 79g/m
2Preparation, except NBKP and LBKP are cooperated with 50/50 mass ratio, internal layer 1 use with internal layer with paper stock slip a equally the internal layer made from paper stock slip a4, with grammes per square metre 159g/m
2Preparation, same except outer 1, internal layer 1, outer 2 grammes per square metre ratio are 25: 50: 25 with embodiment 1, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[Comparative Examples 3]
Except skin 1 and outer 2 uses outer with paper stock slip A6, with grammes per square metre 62g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a4, with grammes per square metre 123g/m
2Preparation, the grammes per square metre ratio of skin 1, internal layer 1, skin 2 is beyond 25: 50: 25, and is same with embodiment 1, obtains grammes per square metre 250g/m
2, density 0.75g/cm
3Paper container body paper.
[Comparative Examples 4]
Except NBKP and LBKP are cooperated with 30/70 mass ratio, outer 1 and outer 2 use with outer skin with the same making of paper stock slip A with paper stock slip A7, with grammes per square metre 79g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a4, with grammes per square metre 159g/m
2Preparation, same except outer 1, internal layer 1, outer 2 grammes per square metre ratio are 25: 50: 25 with embodiment 1, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[Comparative Examples 5]
Except NBKP and LBKP are cooperated with 30/70 mass ratio, outer 1 and outer 2 use with outer skin with the same making of paper stock slip A with paper stock slip A7, with grammes per square metre 62g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a4, with grammes per square metre 123g/m
2Preparation, same except outer 1, internal layer 1, outer 2 grammes per square metre ratio are 25: 50: 25 with embodiment 1, obtain grammes per square metre 250g/m
2, density 0.75g/cm
3Paper container body paper.
[Comparative Examples 6]
Except NBKP and LBKP are cooperated with 50/50 mass ratio, outer 1 and outer 2 use with outer skin with the same making of paper stock slip A with paper stock slip A8, with grammes per square metre 79g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a4, with grammes per square metre 159g/m
2Preparation, same except outer 1, internal layer 1, outer 2 grammes per square metre ratio are 25: 50: 25 with embodiment 1, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[Comparative Examples 7]
Except skin 1 and outer 2 uses outer with paper stock slip A3, with grammes per square metre 79g/m
2Preparation, internal layer 1 cooperate NBKP and LBKP with 40/60 mass ratio beyond, internal layer 1 use with internal layer with paper stock slip a equally the internal layer made from paper stock slip a5, with grammes per square metre 159g/m
2Preparation, same except outer 1, internal layer 1, outer 2 grammes per square metre ratio are 25: 50: 25 with embodiment 1, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[Comparative Examples 8]
Except skin 1 and outer 2 uses outer with paper stock slip A4, with grammes per square metre 79g/m
2Preparation, internal layer 1 uses internal layer with paper stock slip a5, with grammes per square metre 159g/m
2Preparation, the grammes per square metre ratio of skin 1, internal layer 1, skin 2 is beyond 25: 50: 25, and is same with embodiment 1, obtains grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
[Comparative Examples 9]
Except NBKP and LBKP are cooperated with 50/50 mass ratio, outer 1 and outer 2 use with outer skin with the same making of paper stock slip B with paper stock slip B3, with grammes per square metre 63g/m
2Preparation, internal layer 1 and internal layer 3 except NBKP and LBKP are cooperated with 50/50 mass ratio, use with internal layer with paper stock slip b equally the internal layer made from paper stock slip b2, with grammes per square metre 62g/m
2Preparation, internal layer 2 except the mass ratio of NBKP and LBKP is cooperated with 50/50, use with internal layer with paper stock slip c1 equally the internal layer made from paper stock slip c3, with grammes per square metre 63g/m
2Preparation, except outer 1, internal layer 1, internal layer 2, internal layer 3, outer 2 grammes per square metre ratio are 20: 20: 20: same 20: 20 with embodiment 12, obtain grammes per square metre 320g/m
2, density 0.75g/cm
3Paper container body paper.
The paper container of making in embodiment and the Comparative Examples with the mensuration result of laminate shown in following table 1～3.
Table 1
Table 2
Table 3
Can show by embodiment 1～19,, can obtain having the paper container of thermoplastic resin to use laminate having the lamination that also has good printability when property and section permeability resistance are fitted in suitable processing through paper container body paper of the present invention.On the other hand; Can show by Comparative Examples 1～9; The warpage add man-hour owing to be shaped can produce the destruction (Comparative Examples 1～4) of resin bed or after filling content, applies from the outside and falls the destruction (Comparative Examples 1～5) that can produce resin bed when waiting impacts, and it is poor to process right property.Though it is good that perhaps property is fitted in processing, printability poor (Comparative Examples 6～9), Comparative Examples 1～9 does not all have as the sufficient performance of paper container with body paper.
Claims (8)
1. a paper container is used body paper, and it is to be used for that thermoplastic resin is arranged on the paper container to use body paper with the paper container that the body paper surface forms with the paper container of laminate, it is characterized in that,
This paper container uses body paper to be sandwich construction, and this sandwich construction is formed by the plural layer of using the multilayer pulping method to be formed with behind outer and the internal layer,
In the said skin, the coniferous tree kraft pulp fit rate in the total raw material paper pulp is more than the 40 quality %,
In the said internal layer, the coniferous tree kraft pulp fit rate in the total raw material paper pulp is below the 30 quality %.
2. use body paper according to the paper container described in the claim 1; It is characterized in that; In the said internal layer, make that to be lower than 6,000,000 polyacrylamide as the molecular weight that adds dry paper power reinforcing agent in the slurry be that absolute dried paper pulp quality 100 parts by mass contain below 0.2 parts by mass with respect to the total raw material paper pulp in the internal layer.
3. use body paper according to the paper container described in claim 1 or 2, it is characterized in that, constituting except cooperating the coniferous tree kraft pulp of raw material paper pulp also cooperates the broad leaf tree kraft pulp.
4. use body paper according to each described paper container in the claim 1～3, it is characterized in that, it is below the 50 quality % that said paper container uses the coniferous tree kraft pulp fit rate in the total raw material paper pulp in the body paper.
5. use body paper according to each described paper container in the claim 1～4, it is characterized in that the Canadian Standard Freeness of coniferous tree kraft pulp is 450～600ml, the Canadian Standard Freeness of broad leaf tree kraft pulp is 400ml～550ml.
6. use body paper according to each described paper container in the claim 1～5; It is characterized in that; Said paper container with body paper in, making as the alkyl ketene dimer of internal sizing agent is that absolute dried paper pulp quality 100 parts by mass contain more than 0.15 parts by mass, are lower than 0.80 parts by mass with respect to the paper container with the total raw material paper pulp in the body paper.
7. a paper container is used laminate, it is characterized in that, each described paper container forms with the two sides laminated thermoplastic resin bed of body paper in claim 1～6.
8. a paper container is used laminate; It is that the paper container described in the claim 7 is used laminate; It is characterized in that making 1 edge lengths is that the square test film of 10.0cm is that the quality increment rate of dipping after 5 hours is lower than 5.0 quality % in 4 the aqueous solutions of organic acids at 23 ℃, pH regulator.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009087455 | 2009-03-31 | ||
| JP2009-087455 | 2009-03-31 | ||
| PCT/JP2010/055530 WO2010113849A1 (en) | 2009-03-31 | 2010-03-29 | Base paper for paper container and laminate sheet for paper container using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102369324A true CN102369324A (en) | 2012-03-07 |
Family
ID=42828139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800144563A Pending CN102369324A (en) | 2009-03-31 | 2010-03-29 | Base paper for paper container and laminate sheet for paper container using same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5563557B2 (en) |
| CN (1) | CN102369324A (en) |
| WO (1) | WO2010113849A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104334459A (en) * | 2012-08-10 | 2015-02-04 | 日本制纸株式会社 | Multilayered paper container |
| CN107709664A (en) * | 2015-07-07 | 2018-02-16 | 斯道拉恩索公司 | The dish or disk and its manufacture method of the fibrous material of shaping |
| CN109572242A (en) * | 2017-09-28 | 2019-04-05 | 精工爱普生株式会社 | Paper power reinforcing agent applying device, sheet producing device, thin slice and paper power reinforcing agent coating method |
| CN109715507A (en) * | 2016-07-26 | 2019-05-03 | 足迹国际有限责任公司 | Method and apparatus for manufacturing fibre-based food container |
| CN111254732A (en) * | 2020-03-04 | 2020-06-09 | 广东通力定造股份有限公司 | Production method of fluorine-free oil-proof paper |
| CN111893802A (en) * | 2018-06-27 | 2020-11-06 | 日本制纸株式会社 | Base paper for paper tube and paper tube |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6124545B2 (en) * | 2012-10-10 | 2017-05-10 | 日本製紙株式会社 | Paper for paper containers |
| JP6344886B2 (en) * | 2013-02-28 | 2018-06-20 | 日本製紙株式会社 | Base paper for forming containers |
| JP6192441B2 (en) * | 2013-08-29 | 2017-09-06 | アイパックスイケタニ株式会社 | Paper container |
| JP2015080430A (en) * | 2013-10-22 | 2015-04-27 | 王子ホールディングス株式会社 | Method for producing d-lactic acid |
| JP6331327B2 (en) * | 2013-10-22 | 2018-05-30 | 王子ホールディングス株式会社 | Method for producing D-lactic acid |
| JP6236353B2 (en) * | 2014-05-21 | 2017-11-22 | 北越紀州製紙株式会社 | Multi-layer paper |
| JP5837676B1 (en) * | 2014-12-26 | 2015-12-24 | 大王製紙株式会社 | Press pocket type carrier tape |
| JP5957586B2 (en) * | 2015-09-14 | 2016-07-27 | 大王製紙株式会社 | Press pocket type carrier tape |
| JP6997085B2 (en) * | 2015-11-27 | 2022-01-17 | テトラ ラバル ホールディングス アンド ファイナンス エス エイ | A method for producing a laminated packaging material, a packaging material obtained by this method, and a packaging container produced from this packaging material. |
| JP2018000149A (en) * | 2016-07-06 | 2018-01-11 | 日本製紙株式会社 | Prefabricated smoky box |
| JP6846136B2 (en) * | 2016-08-24 | 2021-03-24 | 大王製紙株式会社 | Water and oil resistant paper, manufacturing method of water and oil resistant paper, and paper containers |
| US11035078B2 (en) | 2018-03-07 | 2021-06-15 | Gpcp Ip Holdings Llc | Low lint multi-ply paper products having a first stratified base sheet and a second stratified base sheet |
| JP7119726B2 (en) * | 2018-08-02 | 2022-08-17 | 王子ホールディングス株式会社 | Container base paper and paper container using the container base paper |
| FI130363B (en) | 2018-12-11 | 2023-07-24 | Metsae Board Oyj | A paperboard structure, a package and use of the package |
| JP7172818B2 (en) * | 2019-04-12 | 2022-11-16 | 王子ホールディングス株式会社 | Base material for cup, cup container for liquid, and method for producing the same |
| JP7172819B2 (en) * | 2019-04-12 | 2022-11-16 | 王子ホールディングス株式会社 | Substrate for liquid container, container for liquid, and method for producing the same |
| JPWO2021131949A1 (en) * | 2019-12-24 | 2021-07-01 | ||
| JP7069260B2 (en) * | 2020-08-20 | 2022-05-17 | 大王製紙株式会社 | Coated paper for tableware and paper tableware |
| JP7049497B2 (en) * | 2021-03-01 | 2022-04-06 | 大王製紙株式会社 | Water resistant and oil resistant paper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0511185A1 (en) * | 1991-04-23 | 1992-10-28 | International Paper Company | Method and apparatus for the production of multiply cellulosic board and product obtained thereby |
| JP2001032193A (en) * | 1999-07-16 | 2001-02-06 | Tokan Kogyo Co Ltd | Readily disintegrable multilayer paper |
| JP2003155700A (en) * | 2001-11-14 | 2003-05-30 | Nippon Paper Industries Co Ltd | Base paper for acidic food cup |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2066811A1 (en) * | 1991-04-23 | 1992-10-24 | Dinkar G. Wagle | Method of producing multi-ply paper and board products exhibiting increased stiffness |
| JPH05230788A (en) * | 1992-02-14 | 1993-09-07 | Oji Paper Co Ltd | Production of one-side glazed paper containing deinked waste paper pulp |
| JP3849429B2 (en) * | 2000-01-12 | 2006-11-22 | 王子製紙株式会社 | Paper manufacturing method |
| JP2002326332A (en) * | 2001-04-27 | 2002-11-12 | Oji Paper Co Ltd | Molding forming raw paper and molding container made of paper using the same |
| JP2009242999A (en) * | 2008-03-31 | 2009-10-22 | Nippon Paper Industries Co Ltd | Base paper for liquid container |
-
2010
- 2010-03-29 WO PCT/JP2010/055530 patent/WO2010113849A1/en active Application Filing
- 2010-03-29 CN CN2010800144563A patent/CN102369324A/en active Pending
- 2010-03-29 JP JP2011507176A patent/JP5563557B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0511185A1 (en) * | 1991-04-23 | 1992-10-28 | International Paper Company | Method and apparatus for the production of multiply cellulosic board and product obtained thereby |
| JP2001032193A (en) * | 1999-07-16 | 2001-02-06 | Tokan Kogyo Co Ltd | Readily disintegrable multilayer paper |
| JP2003155700A (en) * | 2001-11-14 | 2003-05-30 | Nippon Paper Industries Co Ltd | Base paper for acidic food cup |
Non-Patent Citations (2)
| Title |
|---|
| 刘仁庆: "《造纸辞典》", 30 June 2008, article "2407纸浆", pages: 339 * |
| 胡惠仁等: "《造纸化学品》", 31 March 2008, article "合成增干强剂", pages: 95-105 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104334459A (en) * | 2012-08-10 | 2015-02-04 | 日本制纸株式会社 | Multilayered paper container |
| CN107709664A (en) * | 2015-07-07 | 2018-02-16 | 斯道拉恩索公司 | The dish or disk and its manufacture method of the fibrous material of shaping |
| US10711403B2 (en) | 2015-07-07 | 2020-07-14 | Stora Enso Oyj | Shaped tray or plate of fibrous material and a method of manufacturing the same |
| CN109715507A (en) * | 2016-07-26 | 2019-05-03 | 足迹国际有限责任公司 | Method and apparatus for manufacturing fibre-based food container |
| CN109572242A (en) * | 2017-09-28 | 2019-04-05 | 精工爱普生株式会社 | Paper power reinforcing agent applying device, sheet producing device, thin slice and paper power reinforcing agent coating method |
| TWI743513B (en) * | 2017-09-28 | 2021-10-21 | 日商精工愛普生股份有限公司 | Sheet |
| CN111893802A (en) * | 2018-06-27 | 2020-11-06 | 日本制纸株式会社 | Base paper for paper tube and paper tube |
| CN111254732A (en) * | 2020-03-04 | 2020-06-09 | 广东通力定造股份有限公司 | Production method of fluorine-free oil-proof paper |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5563557B2 (en) | 2014-07-30 |
| JPWO2010113849A1 (en) | 2012-10-11 |
| WO2010113849A1 (en) | 2010-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102369324A (en) | Base paper for paper container and laminate sheet for paper container using same | |
| US5882746A (en) | Laminated package and method of producing the same | |
| JP6117133B2 (en) | White paperboard and its manufacturing method | |
| KR20180014829A (en) | Non-wood fiber composition and use in cardboard packaging | |
| JP6702496B1 (en) | LAMINATED PAPER, LAMINATED PAPER PAPER BASE, PAPER CONTAINER AND LAMINATED PAPER MANUFACTURING METHOD | |
| KR100858041B1 (en) | Molding base paper and molded paper vessel produced from it | |
| JP6293937B2 (en) | White paperboard manufacturing method | |
| WO1999056953A1 (en) | Laminated carton package and method of manufacture | |
| JP2019163082A (en) | Tissue paper storage body | |
| JP2023014152A (en) | Packaging paper | |
| TW202043050A (en) | Liner for cardboard and manufacturing method of liner for cardboard | |
| JP7172819B2 (en) | Substrate for liquid container, container for liquid, and method for producing the same | |
| JP6394511B2 (en) | Paper base material | |
| JP2020094316A (en) | Laminate paper, paper substrate for laminate paper, paper container and manufacturing methods thereof | |
| JP6092127B2 (en) | White paperboard | |
| JP7205385B2 (en) | Paper substrate, paper sheet, cup-shaped packaging container, and manufacturing method thereof | |
| JP2023096150A (en) | Packaging paper | |
| JP6124545B2 (en) | Paper for paper containers | |
| JP2002266294A (en) | Base paper for molded container and molded container using the same | |
| WO2021131949A1 (en) | Laminated paper and paper container for liquids employing same | |
| JP2009243009A (en) | Base paper for paper vessel | |
| JP7172818B2 (en) | Base material for cup, cup container for liquid, and method for producing the same | |
| WO2021241531A1 (en) | Paperboard and method for manufacturing same | |
| JP2016069753A (en) | Coating liner and manufacturing method therefor, and cardboard sheet with coating liner | |
| JP7215613B2 (en) | Water-resistant paper, food containers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120307 |