CN105603830A - Paperboard and preparation method thereof - Google Patents

Paperboard and preparation method thereof Download PDF

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Publication number
CN105603830A
CN105603830A CN201610141364.0A CN201610141364A CN105603830A CN 105603830 A CN105603830 A CN 105603830A CN 201610141364 A CN201610141364 A CN 201610141364A CN 105603830 A CN105603830 A CN 105603830A
Authority
CN
China
Prior art keywords
slurry
paper layer
cardboard
fiber
pulp
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.)
Granted
Application number
CN201610141364.0A
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Chinese (zh)
Other versions
CN105603830B (en
Inventor
曾金郎
汤惠民
张克庆
黄宝锋
王晶晶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mori Hiroshi Asia Pacific (shandong) Pulp And Paper Co
Original Assignee
Mori Hiroshi Asia Pacific (shandong) Pulp And Paper Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mori Hiroshi Asia Pacific (shandong) Pulp And Paper Co filed Critical Mori Hiroshi Asia Pacific (shandong) Pulp And Paper Co
Priority to CN201610141364.0A priority Critical patent/CN105603830B/en
Publication of CN105603830A publication Critical patent/CN105603830A/en
Application granted granted Critical
Publication of CN105603830B publication Critical patent/CN105603830B/en
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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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • 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
    • 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
    • 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
    • D21H11/10—Mixtures of chemical and mechanical pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • 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
    • D21H11/14—Secondary fibres
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/24—Polyesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/26—All layers being made of paper or paperboard
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • 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
    • B32B2307/558—Impact strength, toughness
    • 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
    • B32B2307/716—Degradable

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)

Abstract

The invention provides a paperboard and a preparation method thereof. The paperboard comprises a bottom paper layer, a core paper layer and a surface paper layer which are sequentially overlaid; the bottom paper layer and/or the core paper layer comprise/comprises identifiable fibers; the identifiable fibers are plant fibers in primary color or plant fibers colored with organic pigment or degradable synthetic fibers colored with alkaline dye. Compared with the prior art, the identifiable fibers added to the paperboard are wide in scope, low in cost, easy to degrade, capable of being recycled for reutilization completely, safe, capable of saving energy and environmentally friendly, and meanwhile the paperboard is good in strength and toughness, great in identifiability and excellent in printing performance.

Description

A kind of cardboard and preparation method thereof
Technical field
The invention belongs to pulp technology for making paper, relate in particular to a kind of cardboard and preparation method thereof.
Background technology
Packaging material refer to the general name for the manufacture of the material of packing container and the formation packing of product. Bag nowPackage material comprises the main packaging material such as paper wood, plastic, timber, and adhesive, coating, ink,Padded coaming, seal material and tie up the auxiliary package material such as material. Can be packaging material according to raw material typesBe divided into: paper material, synthesized polymer material, metal material, glass and ceramic material, composite fibre,Timber and other materials.
Paper material occupies very large proportion in packaging material, and reason is: paper and paper board material raw materialExtensively, cheap, easily form and produce in enormous quantities; Uniformity is better, and strength per unit area is larger;Paper and cardboard have good ink absorption, easily bonding, and printing performance is good, writing, clear patterns,Firmly; High-and low-temperature resistance better performances especially has advantages of outstanding compared with plastic package material; PaperGoods can go out case miscellaneous, box according to different commodity design, are convenient to automatic packaging, package shapeNot malleable, and health again; Nontoxic, pollution-free, can repeatedly reclaim use.
At present, cardboard type packaging material are of a great variety, and market competition is growing more intense, for making product and crowd notWith, make us gifted with an extraordinary retentive memory, excite consumer's purchase intention, numerous manufacturers are all in the printing side of productIn formula with in package design, do the time. But excessively print and pack to manufacturer and bring additional product to addExpenses of labour use, therefore, sets about from body paper base material, provides a kind of production technology simply and is easier to the bag of distinguishingPaper loading plate becomes not only cost-saving but also effective method.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of cardboard and preparation method thereof,This cardboard identifiability is higher and cost is lower.
The invention provides a kind of cardboard, comprise ground paper layer, core paper layer and the facial tissue layer of stack successively; InstituteStating ground paper layer and/or core paper layer comprises and can identify fiber; The described fiber of identifying is primary colour plant fiber, hasThe degradable synthetic fibers of the string of machine pigment colouring or basic-dyeable fibre colouring.
Preferably, the content that can identify fiber in the slurry of the slurry of described ground paper layer and/or core paper layer separatelyBe 5～25wt% independently.
Preferably, the slurry of described ground paper layer comprises 75～100wt% bleaching broad-leaved wood sulphate pulp.
Preferably, the slurry of described core paper layer comprises bleached chemi-mechanical pulp, the 5～25wt% of 40～60wt%Bleaching broad-leaved wood sulphate pulp and the broken of 25～35wt%.
Preferably, the bleaching broad-leaved wood sulphate pulp that the slurry of described facial tissue layer comprises 65～85wt% withThe bleaching softwood kraft pulp of 15～35wt%.
Preferably, described organic pigment is the organic dispersed color of anion phthalocyanine type.
Preferably, the particle diameter of described organic pigment is 1～50nm.
Preferably, described degradable synthetic fibers are degradable polyester fiber.
Preferably, the string of described organic pigment colouring is prepared in accordance with the following methods:
String is diluted to size degradation, obtain the slurry of dilution, then add organic pigment to obtain organic faceThe string of material colouring; In the slurry of described dilution, the concentration of string is 3～6wt%; Described organicThe amount that pigment adds is 1～1000ppm.
Preferably, the degradable synthetic fibers of described basic-dyeable fibre colouring are prepared in accordance with the following methods:
By the dilution of degradable synthetic fibers, obtain the slurry of dilution, then add basic dyeing,To the degradable synthetic fibers of basic-dyeable fibre colouring; In the slurry of described dilution, degradable synthetic fibers is denseDegree is 4～6wt%; The amount that described basic-dyeable fibre adds is 1～1000ppm.
The invention provides a kind of cardboard and preparation method thereof, comprise ground paper layer, the core paper layer of stack successivelyWith facial tissue layer; Described ground paper layer and/or core paper layer comprise can identify fiber; The described fiber of identifying is primary colorsThe degradable synthetic fibers of the string of string, organic pigment colouring or basic-dyeable fibre colouring. WithPrior art is compared, the fiberoptic scope identified that the present invention adds is wide, cost is low, easy degraded, canAll recyclings, safety, energy-saving and environmental protection, meanwhile, make paper board strength and toughness all better, canIdentity is strong, and printing performance is good.
Brief description of the drawings
Fig. 1 is the structural representation of cardboard of the present invention;
Fig. 2 is cardboard preparation method's of the present invention schematic flow sheet;
Fig. 3 is cardboard preparation method's of the present invention schematic flow sheet;
Fig. 4 is cardboard preparation method's of the present invention schematic flow sheet;
Fig. 5 adds primary colour plant fiber can identify the photograph of starching the cardboard paper of manufacturing paper with pulp in the embodiment of the present invention 1Sheet is opened;
Fig. 6 is the photograph that adds the cardboard that organic pigment colouring plant fiber pulp manufactures paper with pulp in the embodiment of the present invention 4Sheet paper;
Fig. 7 adds the cardboard that basic-dyeable fibre colouring degradable synthetic fibers are manufactured paper with pulp in the embodiment of the present invention 7Photo paper.
Detailed description of the invention
The invention provides a kind of cardboard, comprise ground paper layer, core paper layer and the facial tissue layer of stack successively; InstituteStating ground paper layer and/or core paper layer comprises and can identify fiber; The described fiber of identifying is primary colour plant fiber, hasThe degradable synthetic fibers of the string of machine pigment colouring or basic-dyeable fibre colouring.
The thickness of described ground paper layer is preferably 30～150 μ m, more preferably 50～100 μ m; Described ground paper layerGrammes per square metre be preferably 30～75g/m2, more preferably 40～60g/m2; The weight of described ground paper layer is preferably anti-10～25% of pseudo-coated white cardboard weight. Composition and those skilled in the art of ground paper layer of the present invention are ripeThe composition of knowing is identical, there is no special restriction, and the slurry of this ground paper layer of the present invention preferably includes 75～100wt%Bleaching broad-leaved wood sulphate pulp; Bleaching broad-leaved wood sulphate pulp in described ground paper layer slurry is preferably freshSlurry.
The thickness of described core paper layer is preferably 90～400 μ m, more preferably 150～300 μ m; Described core paperThe grammes per square metre of layer is preferably 64～254g/m2, more preferably 100～200g/m2; The weight of described core paper layer is excellentElect 35～75% of anti-counterfeiting coating white card paper weight as, more preferably 50～60%. Core paper layer of the present inventionComposition identical with composition well known to those skilled in the art, there is no special restriction, core paper layer of the present inventionSlurry preferably include the bleached chemi-mechanical pulp of 40～60wt%, the bleaching leaf wood sulfuric acid of 5～25wt%The broken of salt slurry and 25～35wt%; Bleaching broad-leaved wood sulphate pulp in described core paper layer slurry material is preferably freshSlurry.
Described ground paper layer and/or core paper layer comprise can identify fiber; The slurry of described ground paper layer and/or core paper layerSlurry in can identify fiber content be preferably independently of one another 5～25wt%, more preferably 7～20Wt%, then be preferably 8～15wt%, most preferably be 10～15wt%; In enforcements more provided by the inventionIn example, the content that can identify fiber in the slurry of described ground paper layer is preferably 15%; Provided by the inventionIn some embodiment, the content that can identify fiber in the slurry of described core paper layer is preferably 15%; At thisIn bright some embodiment that provide, the content that can identify fiber in the slurry of described core paper layer is preferably 13%,The content that can identify fiber in the slurry of described ground paper layer is preferably 10%; In realities more provided by the inventionExecute in example, the content that can identify fiber in the slurry of described ground paper layer is preferably 11%; The invention providesSome embodiment in, the content that can identify fiber in the slurry of described core paper layer is preferably 13%; At thisIn some embodiment that invention provides, the content that can identify fiber in the slurry of described core paper layer is preferably10%, the content that can identify fiber in the slurry of described ground paper layer is preferably 7%; Provided by the invention oneIn a little embodiment, the content that can identify fiber in the slurry of described ground paper layer is preferably 8%; Carry in the present inventionIn some embodiment of confession, the content that can identify fiber in the slurry of described core paper layer is preferably 11%; ?In other embodiment that invention provides, the content that can identify fiber in the slurry of described core paper layer is preferably9%, the content that can identify fiber in the slurry of described ground paper layer is preferably 5%.
In the present invention, the described fiber of identifying is the string that primary colour plant fiber, organic pigment are paintedOr the degradable synthetic fibers of basic-dyeable fibre colouring; This three can be commercially available, also can be self-control, there is no spyDifferent restriction.
Wherein, described primary colour plant fiber can obtain for separating from primary colour plant, without chemical treatment,Set it as and can identify fiber, can reduce the use of chemicals, energy-conserving and environment-protective, reduce the dirt to environmentDye, and high without chemically treated string intensity, identifiability is good, and printing adaptability is better.
The string of described organic pigment colouring is preparation in accordance with the following methods preferably: string is dilutedSize degradation, obtains the slurry of dilution, then adds organic pigment to obtain the string of organic pigment colouring.Wherein, in the slurry of described dilution, the concentration of string is preferably 3～6wt%; Described organic pigment addsAmount be preferably 1～1000ppm, more preferably 10～1000ppm, then be preferably 100～1000ppm,Be preferably again 500～1000ppm. Described organic pigment is preferably the organic dispersed color of anion phthalocyanine type;The particle diameter of described organic pigment is preferably 1～50nm; The color of described organic pigment is preferably red, Huang YulanIn one or more.
The degradable synthetic fibers of basic-dyeable fibre colouring are preparation in accordance with the following methods preferably: degradable is syntheticFiber dilution, obtains the slurry of dilution, then add basic dyeing, obtains basic-dyeable fibre colouringDegradable synthetic fibers; In the slurry of described dilution, the concentration of degradable synthetic fibers is preferably 4～6wt%;The amount that described basic-dyeable fibre adds is preferably 1～1000ppm, more preferably 10～1000ppm, more preferredBe 100～1000ppm, most preferably be 500～1000ppm; That the pigment of described organic dyestuff is preferably is red,One or more in Huang and basket.
The thickness of described facial tissue layer is preferably 35～150 μ m, more preferably 50～100 μ m; Described facial tissue layerGrammes per square metre be preferably 30～75g/m2, more preferably 40～60g/m2; The weight of described facial tissue layer is preferably anti-15～40% of pseudo-coated white cardboard weight, more preferably 20～30%. The composition of facial tissue layer of the present inventionIdentical with composition well known to those skilled in the art, there is no special restriction, the slurry of facial tissue layer of the present inventionPreferably include the bleaching broad-leaved wood sulphate pulp of 65～85wt% and the bleaching needlebush sulfuric acid of 15～35wt%Salt slurry; Bleaching broad-leaved wood sulphate pulp in described facial tissue layer slurry is preferably fresh slurry; Described facial tissue layer slurryBleaching softwood kraft pulp in material is preferably fresh slurry.
According to the present invention, described facial tissue layer surface is preferably also superimposed with coating layer; Described coating layer preferably wrapsDraw together precoated shet and finishing coat; The coating weight of described precoated shet is preferably 12～14g/cm2; Described finishing coatCoating weight is preferably 10～12g/cm2。
The fiberoptic scope identified that the present invention adds is wide, cost is low, easy degraded, can all reclaim againUtilize, safety, energy-saving and environmental protection, meanwhile, make paper board strength and toughness all better, and identifiability is strong,And printing performance is good; And bleaching broad-leaved wood sulphate pulp and bleaching needlebush sulfuric acid that the present invention is usedSalt slurry, for fresh slurry, can reduce energy consumption in page is manufactured paper with pulp process, saves human resources, using water wisely, alsoCan make formation of sheet good, intensity is high, and planarization is good.
The present invention also provides a kind of preparation method of above-mentioned cardboard, comprising:
By the slurry of ground paper layer, the slurry of core paper layer and the slurry of facial tissue layer through papermaking machine dewatering moulding, multipleAfter closing, squeeze, being dried, obtain cardboard; In the slurry of the slurry of described ground paper layer and/or core paper layer, compriseCan identify fiber.
According to the present invention, after being dried, preferably also carry out applying glue, coating and press polish.
As the preferred technical scheme of the present invention, the life of the described identification fiber sheet containing primary colour plant fiberProduction. art, comprises the following steps: by broken through pulper respectively to bleached chemi-mechanical pulp and primary colour plant fiberSeparate, after mill paste mill grinding with defibrination after the fresh slurry of bleaching leaf wood sulfate, bleached sulphate pinThe paper machine of leaf wood pulp rear entering surface with slurry, core, the three layers of fourdrinier forming in the end, dehydration forming in paper machineAfter carry out compoundly, squeeze after compound, be dried, applying glue, coating and press polish, finally by batching, multipleVolume, packing finished product. In the slurry of the slurry of described ground paper layer and/or core paper layer, comprise primary colour plant fiber.
As the preferred technical scheme of the present invention, the identification fibre of the described string containing organic pigment colouringThe production technology of dimension cardboard, comprises the following steps: string pulpboard dilution size degradation, and concentration is 3～6wt%;After adding organic pigment colouring in slurry after dilution, obtain identifying fiber. Addition 1～1000ppm;By the identification fiber having made, the fresh slurry of bleaching leaf wood sulfate, the fresh slurry of bleaching needlebush sulfate separatelyDirectly send the processing of disc mill defibrination, bleached chemi-mechanical pulp through pulper size degradation, send mill paste mill grindingProcess, above-mentioned various after defibrination slurry after treatment is with slurry according to preset proportion entering surface, core, the end threeThe paper machine of layer fourdrinier forming carries out compoundly in paper machine after dehydration forming, squeeze after compound,Dry, applying glue, coating and press polish, finally by batching, rewinding, packing finished product. The slurry of described ground paper layerIn the slurry of material and/or core paper layer, comprise the string of organic pigment colouring.
As the preferred technical scheme of the present invention, the described degradable synthetic fibers containing basic-dyeable fibre colouringIdentification fiber sheet production technology, comprise the following steps: by degradable synthetic fibers according to 4～6wt%Concentration dilution; In slurry after dilution, add basic dyeing to obtain identifying fiber, addition is1～1000ppm; Bleached chemi-mechanical pulp through pulper size degradation, send the processing of mill paste mill grinding, bleachingThe fresh slurry of leaf wood sulfate, bleaching softwood kraft pulp directly send the processing of disc mill defibrination, above-mentioned variousAfter defibrination slurry after treatment and the identification fiber having made are with slurry according to preset proportion entering surface, core,The paper machine of the three layers of fourdrinier forming in the end carries out compoundly in paper machine after dehydration forming, press after compoundSqueeze, dry, applying glue, coating and press polish, finally by batching, rewinding, packing finished product. Described ground paper layerSlurry and/or the slurry of core paper layer in comprise the degradable synthetic fibers containing basic-dyeable fibre colouring.
In order to further illustrate the present invention, below in conjunction with embodiment to a kind of cardboard provided by the invention andPreparation method is described in detail.
In following examples, reagent used is commercially available.
Refer to Fig. 1, the structural representation that Fig. 1 is cardboard, described body paper comprises the facial tissue layer of stack successively103, core paper layer 102 and ground paper layer 101; On this facial tissue layer 103, be coated with coating layer, this coating layer byInterior to comprising successively precoated shet 104, finishing coat 105 outward.
Wood pulp component and the percentage by weight of this facial tissue layer 103 are: the bleaching leaf wood sulphur of 65～85wt%The bleaching softwood kraft pulp of hydrochlorate slurry, 15～35wt%.
Wood pulp component and the percentage by weight of this core paper layer 102 are: the bleached chemical machinery of 40～60wt%Slurry, the bleaching broad-leaved wood sulphate pulp of 5～25wt% and the broken of 25～35wt%.
Wood pulp component and the percentage by weight of this ground paper layer 101 are: the bleaching leaf wood sulphur of 75～100wt%Hydrochlorate slurry.
In facial tissue layer 103, core paper layer 102 and ground paper layer 101, bleaching broad-leaved wood sulphate pulp is freshSlurry.
This precoated shet 104, finishing coat 105 coating weights be respectively 12～14 grams/m, 10～12 grams/flatSide's rice. Described coating is used the coating in traditional handicraft to be coated with.
Embodiment 1
According to technological process shown in Fig. 2, primary colour plant fiber can be identified fiber pulp: by air-dry primary colour plantFiber can be identified fiber board according to 5% concentration dilution size degradation, send the processing of taper thread grinding paste mill grinding.
Bleaching broad-leaved wood sulphate pulp: the fresh slurry of bleaching leaf wood sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleaching softwood kraft pulp: the fresh slurry of bleaching leaf wood sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleached chemi-mechanical pulp: air-dry bleached chemi-mechanical pulp plate is pressed to the concentration dilution size degradation of 5wt%,Send fluffer processing.
Broken: the dry broke producing in production process and wet broke send damage after broken thickener concentrationIn paper disc mill, process.
Facial tissue layer slurry: wood pulp (percentage by weight: bleaching broad-leaved wood sulphate pulp 80%, bleaching needleWood NBSK 20%) after mixed slurry, defibrination, enter the processing of paper movement net filtration.
Core paper layer slurry's material: wood pulp (percentage by weight: bleached chemi-mechanical pulp 50%, bleaching leaf wood sulphurHydrochlorate slurry 20%, broken 30%) after mixed slurry, defibrination, enter the processing of paper machine side net filtration.
Ground paper layer slurry: wood pulp (percentage by weight: can identify fiber 15%, bleaching leaf wood sulfateSlurry 85%) after mixed slurry, defibrination, enter paper machine spacer screen filtration treatment.
Then pass through the stacked add-on type processing of long mesh paper making machine three, produce there are 103 facial tissue layers, 102 core papersLayer and be added with the l Water Paper page of 101 ground paper layers of identification fiber, this l Water Paper page through super-dry, top sizing,After press polish, obtain body paper, then be coated with; On surface layer, be coated with precoated shet, on precoated shet, coated face is coated withLayer, finally by press polish, batch, rewinding, packing finished product.
Coating is carried out secondary coating by scraper, is divided into precoating and face and is coated with. First form precoated shet 104, then shapeBecome finishing coat 105.
The coating formula that precoating and face are coated with carries out according to traditional coating process.
Precoated shet coating weight is coated with by 13 grams/m, and surface layer coating weight is undertaken by 11 grams/mCoating.
The cardboard of producing the more common cardboard of identical grammes per square metre carries out indices contrast, and result is aobviousShow that the present invention contains the paperboard properties of identifying fiber and is all better than common cardboard. The present invention contains identification fiberCardboard can obviously observe primary colour plant fiber overleaf, has obvious difference with common cardboard.
Following table is that the cardboard physics obtaining in the common cardboard in the market of 220 grammes per square metres and the embodiment of the present invention 1 refers toMark detects contrast.
The cardboard obtaining in table 1 embodiment 1 and common cardboard physical property testing result
Embodiment 2
According to technological process shown in Fig. 2, primary colour plant fiber can be identified fiber pulp: by air-dry primary colour plantFiber can be identified fiber board according to the concentration dilution size degradation of 5wt%, send the processing of taper thread grinding paste mill grinding.
Bleaching broad-leaved wood sulphate pulp: the fresh slurry of bleaching leaf wood sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleaching softwood kraft pulp: the fresh slurry of bleaching needlebush sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding. Bleached chemi-mechanical pulp: by air-dry bleached chemicalMachinery pulpboard is pressed the concentration dilution size degradation of 5wt%, send fluffer processing.
Broken: the dry broke producing in production process and wet broke send damage after broken thickener concentrationIn paper disc mill, process.
Facial tissue layer slurry: wood pulp (percentage by weight: bleaching broad-leaved wood sulphate pulp 80wt%, bleaching pinLeaf wood NBSK 20%) after mixed slurry, defibrination, enter the processing of paper movement net filtration.
Core paper layer slurry's material: wood pulp (percentage by weight: bleached chemi-mechanical pulp 45wt%, bleaching leaf woodNBSK 10wt%, broken 30wt%, can identify fiber 15wt%) enter paper after mixed slurry, defibrinationThe processing of machine side net filtration.
Ground paper layer slurry: wood pulp (mass percent: bleaching broad-leaved wood sulphate pulp 100%) the mixed slurry of warp,After defibrination, enter paper machine spacer screen filtration treatment.
Then pass through the stacked add-on type processing of long mesh paper making machine three, produce there are 103 facial tissue layers, 101 base stocksLayer and be added with the l Water Paper page of 102 core paper layers of identification fiber, this l Water Paper page through super-dry, top sizing,After press polish, obtain body paper, then be coated with; On facial tissue layer, be coated with precoated shet, coated face on precoated shetCoating, finally by press polish, batch, rewinding, packing finished product.
Coating is carried out secondary coating by scraper, is divided into precoating and face and is coated with. First form precoated shet 104, then shapeBecome finishing coat 105.
The coating formula that precoating and face are coated with carries out according to traditional coating process.
Precoated shet coating weight is coated with by 13 grams/m, and surface layer coating weight is undertaken by 11 grams/mCoating.
The cardboard of producing the more common cardboard of identical grammes per square metre carries out indices contrast, and result is aobviousShow that the present invention contains the paperboard properties of identifying fiber and is all better than common cardboard. The present invention contains identification fiberCardboard can obviously observe primary colour plant fiber at bottom, and cardboard and common cardboard have obvious difference.
Following table is that the cardboard physics obtaining in the common cardboard in the market of 220 grammes per square metres and the embodiment of the present invention 2 refers toMark detects contrast.
The physical property testing result of the cardboard obtaining in table 2 embodiment 2 and common cardboard
Embodiment 3
According to technological process shown in Fig. 2, primary colour plant fiber identification fiber pulp: by air-dry primary colour plant fibreDimension identification fiber board, according to the concentration dilution size degradation of 5wt%, send the processing of taper thread grinding paste mill grinding.
Bleaching broad-leaved wood sulphate pulp: the fresh slurry of bleaching leaf wood sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleaching softwood kraft pulp: the fresh slurry of bleaching needlebush sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding. Bleached chemi-mechanical pulp: by air-dry bleached chemicalMachinery pulpboard is pressed the concentration dilution size degradation of 5wt%, send fluffer processing.
Broken: the dry broke producing in production process and wet broke send damage after broken thickener concentrationIn paper disc mill, process.
Facial tissue layer slurry: wood pulp (percentage by weight: bleaching broad-leaved wood sulphate pulp 80wt%, bleaching pinLeaf wood NBSK 20wt%) after mixed slurry, defibrination, enter the processing of paper movement net filtration.
Core paper layer slurry's material: wood pulp (percentage by weight: bleached chemi-mechanical pulp 46wt%, bleaching leaf woodNBSK 13wt%, broken 28wt%, can identify fiber 13wt%) after mixed slurry, defibrination, enterThe processing of paper machine side net filtration.
Ground paper layer slurry: wood pulp (percentage by weight: can identify fiber 10wt%, bleaching leaf wood sulfuric acidSalt slurry 90wt%) after mixed slurry, defibrination, enter paper machine spacer screen filtration treatment.
Then pass through the stacked add-on type processing of long mesh paper making machine three, produce there are 103 facial tissue layers, add insighted102 core paper layers of other fiber and the l Water Paper page of 101 ground paper layers, this l Water Paper page through super-dry, top sizing,After press polish, obtain body paper, then be coated with; On surface layer, be coated with precoated shet, on precoated shet, coated face is coated withLayer, finally by press polish, batch, rewinding, packing finished product.
Coating is carried out secondary coating by scraper, is divided into precoating and face and is coated with. First form precoated shet 104, then shapeBecome finishing coat 105.
The coating formula that precoating and face are coated with carries out according to traditional coating process.
Precoated shet coating weight is coated with by 13 grams/m, and surface layer coating weight is undertaken by 11 grams/mCoating.
The cardboard of producing the more common cardboard of identical grammes per square metre carries out indices contrast, and result is aobviousShow that the present invention contains the paperboard properties of identifying fiber and is all better than common cardboard. The present invention contains identification fiberCardboard can obviously observe primary colour plant fiber overleaf, has obvious difference with common cardboard.
Following table is that the cardboard physics obtaining in the common cardboard in the market of 220 grammes per square metres and the embodiment of the present invention 3 refers toMark detects contrast.
The cardboard obtaining in table 3 embodiment 3 and common cardboard physical property testing result
Embodiment 4
According to technological process shown in Fig. 3, commodity string pulpboard is pressed to 5wt% concentration size degradation, then addThe organic dispersed color of anion phthalocyanine type, addition is red 750ppm, yellow 150ppm, blue 100ppm,Stir 5 minutes, obtain non-white identification fiber.
Bleaching broad-leaved wood sulphate pulp: the fresh slurry of bleaching leaf wood sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleaching softwood kraft pulp: the fresh slurry of bleaching leaf wood sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding. Bleached chemi-mechanical pulp: by air-dry bleached chemicalMachinery pulpboard is pressed the concentration dilution size degradation of 5wt%, send fluffer processing.
Broken: the dry broke producing in production process and wet broke send damage after broken thickener concentrationIn paper disc mill, process.
Facial tissue layer slurry: wood pulp (percentage by weight: bleaching broad-leaved wood sulphate pulp 80wt%, bleaching pinLeaf wood NBSK 20wt%) after mixed slurry, defibrination, enter the processing of paper movement net filtration.
Core paper layer slurry's material: wood pulp (percentage by weight: bleached chemi-mechanical pulp 55wt%, bleaching leaf woodNBSK 17wt%, broken 28wt%) after mixed slurry, defibrination, enter the processing of paper machine side net filtration.
Ground paper layer slurry: wood pulp (percentage by weight: can identify fiber 11wt%, bleaching leaf wood sulfuric acidSalt slurry 89wt%) after mixed slurry, defibrination, enter paper machine spacer screen filtration treatment.
Then pass through the stacked add-on type processing of long mesh paper making machine three, produce there are 103 facial tissue layers, 102 core papersLayer and be added with the l Water Paper page of 101 ground paper layers of identification fiber, this l Water Paper page through super-dry, top sizing,After press polish, obtain body paper, then be coated with; On surface layer, be coated with precoated shet, on precoated shet, coated face is coated withLayer, finally by press polish, batch, rewinding, packing finished product.
Coating is carried out secondary coating by scraper, is divided into precoating and face and is coated with. First form precoated shet 104, then shapeBecome finishing coat 105.
The coating formula that precoating and face are coated with carries out according to traditional coating process.
Precoated shet coating weight is coated with by 13 grams/m, and surface layer coating weight is undertaken by 11 grams/mCoating.
The cardboard of producing the more common cardboard of identical grammes per square metre carries out indices contrast, and result is aobviousShow that the present invention contains the paperboard properties of identifying fiber and is all better than common cardboard. The present invention contains identification fiberCardboard can obviously observe non-white identification fiber at bottom, and cardboard and common cardboard have obvious difference.
Following table is that the cardboard physics obtaining in the common cardboard in the market of 215 grammes per square metres and the embodiment of the present invention 4 refers toMark detects contrast.
The cardboard obtaining in table 4 embodiment 4 and common cardboard physical property testing result
Embodiment 5
According to technological process shown in Fig. 3, commodity string pulpboard is pressed to 5wt% concentration size degradation, then addThe organic dispersed color of anion phthalocyanine type, addition is red 750ppm, yellow 150ppm, blue 100ppm,Stir 5 minutes, obtain non-white identification fiber.
Bleaching broad-leaved wood sulphate pulp: the fresh slurry of bleaching leaf wood sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleaching softwood kraft pulp: the fresh slurry of bleaching needlebush sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleached chemi-mechanical pulp: air-dry bleached chemi-mechanical pulp plate is pressed to the concentration dilution size degradation of 5wt%,Send fluffer processing.
Broken: the dry broke producing in production process and wet broke send damage after broken thickener concentrationIn paper disc mill, process.
Facial tissue layer slurry: wood pulp (percentage by weight: bleaching broad-leaved wood sulphate pulp 80wt%, bleaching pinLeaf wood NBSK 20wt%) after mixed slurry, defibrination, enter the processing of paper movement net filtration.
Core paper layer slurry's material: wood pulp (percentage by weight: bleached chemi-mechanical pulp 45wt%, bleaching leaf woodNBSK 12wt%, broken 30wt% can identify fiber 13wt%) enter paper machine after mixed slurry, defibrinationVeil filtration treatment.
Ground paper layer slurry: wood pulp (mass percent: bleaching broad-leaved wood sulphate pulp 100wt%) the mixed slurry of warp,After defibrination, enter paper machine spacer screen filtration treatment.
Then pass through the stacked add-on type processing of long mesh paper making machine three, produce there are 103 facial tissue layers, 101 base stocksLayer and be added with the l Water Paper page of 102 core paper layers of identification fiber, this l Water Paper page through super-dry, top sizing,After press polish, obtain body paper, then be coated with; On surface layer, be coated with precoated shet, on precoated shet, coated face is coated withLayer, finally by press polish, batch, rewinding, packing finished product.
Coating is carried out secondary coating by scraper, is divided into precoating and face and is coated with. First form precoated shet 104, then shapeBecome finishing coat 105.
The coating formula that precoating and face are coated with carries out according to traditional coating process.
Precoated shet coating weight is coated with by 13 grams/m, and surface layer coating weight is undertaken by 11 grams/mCoating.
The cardboard of producing the more common cardboard of identical grammes per square metre carries out indices contrast, and result is aobviousShow that the present invention contains the paperboard properties of identifying fiber and is all better than common cardboard. The present invention contains identification fiberCardboard can obviously observe non-white identification fiber overleaf, has obvious difference with common cardboard.
Following table is that the cardboard physics obtaining in the common cardboard in the market of 215 grammes per square metres and the embodiment of the present invention 5 refers toMark detects contrast.
The cardboard obtaining in table 5 embodiment 5 and common cardboard physical property testing result
Embodiment 6
According to technological process shown in Fig. 3, commodity string pulpboard is pressed to 5wt% concentration size degradation, then addThe organic dispersed color of anion phthalocyanine type, addition is red 750ppm, yellow 150ppm, blue 100ppm,Stir 5 minutes, obtain non-white identification fiber.
Bleaching broad-leaved wood sulphate pulp: the fresh slurry of bleaching leaf wood sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleaching softwood kraft pulp: the fresh slurry of bleaching needlebush sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleached chemi-mechanical pulp: air-dry bleached chemi-mechanical pulp plate is pressed to the concentration dilution size degradation of 5wt%,Send fluffer processing.
Broken: the dry broke producing in production process and wet broke send damage after broken thickener concentrationIn paper disc mill, process.
Facial tissue layer slurry: wood pulp (percentage by weight: bleaching broad-leaved wood sulphate pulp 80wt%, bleaching pinLeaf wood NBSK 20wt%) after mixed slurry, defibrination, enter the processing of paper movement net filtration.
Core paper layer slurry's material: wood pulp (percentage by weight: bleached chemi-mechanical pulp 45wt%, bleaching leaf woodNBSK 15wt%, broken 30wt%, can identify fiber 10wt%) after mixed slurry, defibrination, enterThe processing of paper machine side net filtration.
Ground paper layer slurry: wood pulp (percentage by weight: can identify fiber 7wt%, bleaching leaf wood sulfateSlurry 93wt%) after mixed slurry, defibrination, enter paper machine spacer screen filtration treatment.
Then pass through the stacked add-on type processing of long mesh paper making machine three, produce there are 103 facial tissue layers, add insighted102 core paper layers of other fiber and the l Water Paper page of 101 ground paper layers, this l Water Paper page through super-dry, top sizing,After press polish, obtain body paper, then be coated with; On surface layer, be coated with precoated shet, on precoated shet, coated face is coated withLayer, finally by press polish, batch, rewinding, packing finished product.
Coating is carried out secondary coating by scraper, is divided into precoating and face and is coated with. First form precoated shet 104, then shapeBecome finishing coat 105.
The coating formula that precoating and face are coated with carries out according to traditional coating process.
Precoated shet coating weight is coated with by 13 grams/m, and surface layer coating weight is undertaken by 11 grams/mCoating.
The cardboard of producing the more common cardboard of identical grammes per square metre carries out indices contrast, and result is aobviousShow that the present invention contains the paperboard properties of identifying fiber and is all better than common cardboard. The present invention contains identification fiberCardboard can obviously observe non-white identification fiber overleaf, has obvious difference with common cardboard.
Following table is that the cardboard physics obtaining in the common cardboard in the market of 215 grammes per square metres and the embodiment of the present invention 6 refers toMark detects contrast.
The cardboard obtaining in table 6 embodiment 6 and common cardboard physical property testing result
Embodiment 7
According to technological process shown in Fig. 4, degradable polyester fiber is pressed to 5wt% concentration dilution, then addAlkalescence direct dyes, addition is red 900ppm, yellow 400ppm, blue 280ppm, stirs 5 minutes,Obtain non-white identification fiber.
Bleaching broad-leaved wood sulphate pulp: the fresh slurry of bleaching leaf wood sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleaching softwood kraft pulp: the fresh slurry of bleaching needlebush sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleached chemi-mechanical pulp: air-dry bleached chemi-mechanical pulp plate is pressed to the concentration dilution size degradation of 5wt%,Send fluffer processing.
Broken: the dry broke producing in production process and wet broke send damage after broken thickener concentrationIn paper disc mill, process.
Facial tissue layer slurry: wood pulp (percentage by weight: bleaching broad-leaved wood sulphate pulp 80wt%, bleaching pinLeaf wood NBSK 20wt%) after mixed slurry, defibrination, enter the processing of paper movement net filtration.
Core paper layer slurry's material: wood pulp (percentage by weight: bleached chemi-mechanical pulp 55wt%, bleaching leaf woodNBSK 19wt%, broken 26wt%) after mixed slurry, defibrination, enter the processing of paper machine side net filtration.
Ground paper layer slurry: wood pulp (percentage by weight: can identify fiber 8wt%, bleaching leaf wood sulfateSlurry 92wt%) after mixed slurry, defibrination, enter paper machine spacer screen filtration treatment.
Then pass through the stacked add-on type processing of long mesh paper making machine three, produce there are 103 facial tissue layers, 102 core papersLayer and be added with the l Water Paper page of 101 ground paper layers of identification fiber, this l Water Paper page through super-dry, top sizing,After press polish, obtain body paper, then be coated with; On surface layer, be coated with precoated shet, on precoated shet, coated face is coated withLayer, finally by press polish, batch, rewinding, packing finished product.
Coating is carried out secondary coating by scraper, is divided into precoating and face and is coated with. First form precoated shet 104, then shapeBecome finishing coat 105.
The coating formula that precoating and face are coated with carries out according to traditional coating process.
Precoated shet coating weight is coated with by 13 grams/m, and surface layer coating weight is undertaken by 11 grams/mCoating.
The cardboard of producing the more common cardboard of identical grammes per square metre carries out indices contrast, and result is aobviousShow that the present invention contains the paperboard properties of identifying fiber and is all better than common cardboard. The present invention contains identification fiberCardboard can obviously observe non-white identification fiber overleaf, has obvious difference with common cardboard.
Following table is the common cardboard in the market of 225 grammes per square metres and of the present invention containing the inspection of identification fiber sheet physical indexSurvey contrast.
The cardboard obtaining in table 7 embodiment 7 and common cardboard physical property testing result
Embodiment 8
According to technological process shown in Fig. 4, degradable polyester fiber is pressed to 5wt% concentration dilution, then addAlkalescence direct dyes, addition is red 900ppm, yellow 400ppm, blue 280ppm, stirs 5 minutes,Obtain non-white identification fiber.
Bleaching broad-leaved wood sulphate pulp: the fresh slurry of bleaching leaf wood sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleaching softwood kraft pulp: the fresh slurry of bleaching needlebush sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleached chemi-mechanical pulp: air-dry bleached chemi-mechanical pulp plate is pressed to the concentration dilution size degradation of 5wt%,Send fluffer processing.
Broken: the dry broke producing in production process and wet broke send damage after broken thickener concentrationIn paper disc mill, process.
Facial tissue layer slurry: wood pulp (percentage by weight: bleaching broad-leaved wood sulphate pulp 80wt%, bleaching pinLeaf wood NBSK 20wt%) after mixed slurry, defibrination, enter the processing of paper movement net filtration.
Core paper layer slurry's material: wood pulp (percentage by weight: bleached chemi-mechanical pulp 45wt%, bleaching leaf woodNBSK 14wt%, broken 30wt% can identify fiber 11wt%) enter paper machine after mixed slurry, defibrinationVeil filtration treatment.
Ground paper layer slurry: wood pulp (mass percent: bleaching broad-leaved wood sulphate pulp 100wt%) the mixed slurry of warp,After defibrination, enter paper machine spacer screen filtration treatment.
Then pass through the stacked add-on type processing of long mesh paper making machine three, produce there are 103 surface layers, 101 bottoms andThe l Water Paper page that is added with 102 sandwich layers of identification fiber, this l Water Paper page is after super-dry, top sizing, press polishObtain body paper, then be coated with; On surface layer, be coated with precoated shet, coated face coating on precoated shet,By press polish, batch, rewinding, packing finished product.
Coating is carried out secondary coating by scraper, is divided into precoating and face and is coated with. First form precoated shet 104, then shapeBecome finishing coat 105.
The coating formula that precoating and face are coated with carries out according to traditional coating process.
Precoated shet coating weight is coated with by 13 grams/m, and surface layer coating weight is undertaken by 11 grams/mCoating.
The cardboard of producing the more common cardboard of identical grammes per square metre carries out indices contrast, and result is aobviousShow that the present invention contains the paperboard properties of identifying fiber and is all better than common cardboard. The present invention contains identification fiberCardboard can obviously observe non-white identification fiber overleaf, has obvious difference with common cardboard.
Following table is that the cardboard physics obtaining in the common cardboard in the market of 225 grammes per square metres and the embodiment of the present invention 8 refers toMark detects contrast.
The cardboard obtaining in table 8 embodiment 8 and common cardboard physical property testing result
Embodiment 9
According to technological process shown in Fig. 4, degradable polyester fiber is pressed to 5wt% concentration dilution, then addAlkalescence direct dyes, addition is red 900ppm, yellow 400ppm, blue 280ppm, stirs 5 minutes,Obtain non-white identification fiber.
Bleaching broad-leaved wood sulphate pulp: the fresh slurry of bleaching leaf wood sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleaching softwood kraft pulp: the fresh slurry of bleaching needlebush sulfate of 10wt% concentration is pressed to 5wt%Concentration dilution, send the processing of mill paste mill grinding.
Bleached chemi-mechanical pulp: air-dry bleached chemi-mechanical pulp plate is pressed to the concentration dilution size degradation of 5wt%,Send fluffer processing.
Broken: the dry broke producing in production process and wet broke send damage after broken thickener concentrationIn paper disc mill, process.
Facial tissue layer slurry: wood pulp (percentage by weight: bleaching broad-leaved wood sulphate pulp 80wt%, bleaching pinLeaf wood NBSK 20wt%) after mixed slurry, defibrination, enter the processing of paper movement net filtration.
Core paper layer slurry's material: wood pulp (percentage by weight: bleached chemi-mechanical pulp 41wt%, bleaching leaf woodNBSK 20wt%, broken 30wt%, can identify fiber 9wt%) after mixed slurry, defibrination, enter paperThe processing of machine side net filtration.
Ground paper layer slurry: wood pulp (percentage by weight: can identify fiber 5wt%, bleaching leaf wood sulfateSlurry 95wt%) after mixed slurry, defibrination, enter paper machine spacer screen filtration treatment.
Then pass through the stacked add-on type processing of long mesh paper making machine three, produce there are 103 facial tissue layers, add insighted102 core paper layers of other fiber and the l Water Paper page of 101 ground paper layers, this l Water Paper page through super-dry, top sizing,After press polish, obtain body paper, then be coated with; On surface layer, be coated with precoated shet, on precoated shet, coated face is coated withLayer, finally by press polish, batch, rewinding, packing finished product.
Coating is carried out secondary coating by scraper, is divided into precoating and face and is coated with. First form precoated shet 104, then shapeBecome finishing coat 105.
The coating formula that precoating and face are coated with carries out according to traditional coating process.
Precoated shet coating weight is coated with by 13 grams/m, and surface layer coating weight is undertaken by 11 grams/mCoating.
The cardboard of producing the more common cardboard of identical grammes per square metre carries out indices contrast, and result is aobviousShow that the present invention contains the paperboard properties of identifying fiber and is all better than common cardboard. The present invention contains identification fiberCardboard can obviously observe non-white identification fiber overleaf, has obvious difference with common cardboard.
Following table is that the cardboard physics obtaining in the common cardboard in the market of 225 grammes per square metres and the embodiment of the present invention 9 refers toMark detects contrast.
The cardboard obtaining in table 9 embodiment 9 and common cardboard physical property testing result
The above is only the preferred embodiment of the present invention, it should be pointed out that general for the artLogical technical staff, under the premise without departing from the principles of the invention, can also make some improvement and profitDecorations, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (10)

1. a cardboard, is characterized in that, comprises ground paper layer, core paper layer and the facial tissue layer of stack successively;Described ground paper layer and/or core paper layer comprise can identify fiber; Described identify fiber be primary colour plant fiber,The degradable synthetic fibers of the string of organic pigment colouring or basic-dyeable fibre colouring.
2. cardboard according to claim 1, is characterized in that, the slurry of described ground paper layer and/or coreThe content that can identify fiber in the slurry of ply of paper is 5～25wt% independently of one another.
3. cardboard according to claim 1, is characterized in that, the slurry of described ground paper layer comprises75～100wt% bleaches broad-leaved wood sulphate pulp.
4. cardboard according to claim 1, is characterized in that, the slurry of described core paper layer comprisesThe bleached chemi-mechanical pulp of 40～60wt%, bleaching broad-leaved wood sulphate pulp and the 25～35wt% of 5～25wt%Broken.
5. cardboard according to claim 1, is characterized in that, the slurry of described facial tissue layer comprisesThe bleaching broad-leaved wood sulphate pulp of 65～85wt% and the bleaching softwood kraft pulp of 15～35wt%.
6. cardboard according to claim 1, is characterized in that, described organic pigment is anion phthaleinThe organic dispersed color of cyanines type.
7. cardboard according to claim 1, is characterized in that, the particle diameter of described organic pigment is 1～50nm。
8. cardboard according to claim 1, is characterized in that, described degradable synthetic fibers are canDegraded polyester fiber.
9. cardboard according to claim 1, is characterized in that, the plant of described organic pigment colouringFiber is prepared in accordance with the following methods:
String is diluted to size degradation, obtain the slurry of dilution, then add organic pigment to obtain organic faceThe string of material colouring; In the slurry of described dilution, the concentration of string is 3～6wt%; Described organicThe amount that pigment adds is 1～1000ppm.
10. cardboard according to claim 1, is characterized in that, what described basic-dyeable fibre was painted canDegraded synthetic fibers are prepared in accordance with the following methods:
By the dilution of degradable synthetic fibers, obtain the slurry of dilution, then add basic dyeing,To the degradable synthetic fibers of basic-dyeable fibre colouring; In the slurry of described dilution, degradable synthetic fibers is denseDegree is 4～6wt%; The amount that described basic-dyeable fibre adds is 1～1000ppm.
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CN107591083A (en) * 2017-10-14 2018-01-16 洪亚锋 A kind of antifalsification label preparation method
CN112148044A (en) * 2020-09-27 2020-12-29 湖北泰友纸业有限公司 Temperature control and safety protection system for corrugated paper drying

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CN103806326A (en) * 2014-02-12 2014-05-21 亚太森博（山东）浆纸有限公司 Liquid packaging body paper board and preparation method thereof
CN104631202A (en) * 2015-01-14 2015-05-20 珠海经济特区红塔仁恒纸业有限公司 Anti-counterfeit coating white cardboard containing dyed wood pulp fibers and production process thereof

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CN102212983A (en) * 2011-04-13 2011-10-12 浙江吉安纸容器有限公司 High-intensity environment-friendly craft paper and manufacturing method thereof
CN102926293A (en) * 2012-11-06 2013-02-13 珠海经济特区红塔仁恒纸业有限公司 Solid bleached sulphate (SBS) coating white cardboard and process for producing the same
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Denomination of invention: The invention relates to a paperboard and a preparation method thereof

Effective date of registration: 20211224

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