CN117051616A - Preparation process of thermal transfer paper with ultralow expansion rate - Google Patents
Preparation process of thermal transfer paper with ultralow expansion rate Download PDFInfo
- Publication number
- CN117051616A CN117051616A CN202311024442.5A CN202311024442A CN117051616A CN 117051616 A CN117051616 A CN 117051616A CN 202311024442 A CN202311024442 A CN 202311024442A CN 117051616 A CN117051616 A CN 117051616A
- Authority
- CN
- China
- Prior art keywords
- thermal transfer
- transfer paper
- silicon dioxide
- mixed
- 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.)
- Pending
Links
- 238000012546 transfer Methods 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 94
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 88
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 50
- 238000000576 coating method Methods 0.000 claims abstract description 49
- 239000011248 coating agent Substances 0.000 claims abstract description 47
- 238000002156 mixing Methods 0.000 claims abstract description 46
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 37
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 35
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 35
- 241001330002 Bambuseae Species 0.000 claims abstract description 35
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 35
- 239000011425 bamboo Substances 0.000 claims abstract description 35
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 34
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 34
- 238000004513 sizing Methods 0.000 claims abstract description 18
- 238000003490 calendering Methods 0.000 claims abstract description 15
- 229920001046 Nanocellulose Polymers 0.000 claims abstract description 14
- 239000011358 absorbing material Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000011122 softwood Substances 0.000 claims abstract description 6
- 239000000123 paper Substances 0.000 claims description 72
- 238000004537 pulping Methods 0.000 claims description 55
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 42
- 238000001035 drying Methods 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 claims description 28
- 239000008367 deionised water Substances 0.000 claims description 28
- 229910021641 deionized water Inorganic materials 0.000 claims description 28
- 239000000758 substrate Substances 0.000 claims description 28
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 26
- 239000002253 acid Substances 0.000 claims description 21
- 230000020477 pH reduction Effects 0.000 claims description 21
- 238000005406 washing Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 20
- RSPWVGZWUBNLQU-FOCLMDBBSA-N 3-[(e)-hexadec-1-enyl]oxolane-2,5-dione Chemical compound CCCCCCCCCCCCCC\C=C\C1CC(=O)OC1=O RSPWVGZWUBNLQU-FOCLMDBBSA-N 0.000 claims description 15
- 241001397809 Hakea leucoptera Species 0.000 claims description 15
- 229920001131 Pulp (paper) Polymers 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 14
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 13
- 229910017604 nitric acid Inorganic materials 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000011268 mixed slurry Substances 0.000 claims description 11
- 239000004115 Sodium Silicate Substances 0.000 claims description 9
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 9
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 9
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 9
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 9
- 238000010009 beating Methods 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 7
- 229920002472 Starch Polymers 0.000 claims description 7
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- 239000004067 bulking agent Substances 0.000 claims description 7
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- 238000001291 vacuum drying Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 4
- 229920006317 cationic polymer Polymers 0.000 claims description 3
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 claims description 2
- -1 alkyl ketene dimer Chemical compound 0.000 claims description 2
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000000661 sodium alginate Substances 0.000 claims description 2
- 235000010413 sodium alginate Nutrition 0.000 claims description 2
- 229940005550 sodium alginate Drugs 0.000 claims description 2
- 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 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 9
- 239000002994 raw material Substances 0.000 abstract 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 13
- 235000011613 Pinus brutia Nutrition 0.000 description 13
- 241000018646 Pinus brutia Species 0.000 description 13
- 238000010023 transfer printing Methods 0.000 description 13
- 238000007639 printing Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 239000000986 disperse dye Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 6
- 125000002091 cationic group Chemical group 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229920006319 cationized starch Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000274582 Pycnanthus angolensis Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229940108461 rennet Drugs 0.000 description 1
- 108010058314 rennet Proteins 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5218—Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5236—Macromolecular coatings characterised by the use of natural gums, of proteins, e.g. gelatins, or of macromolecular carbohydrates, e.g. cellulose
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/25—Cellulose
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
-
- 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
- D21H21/06—Paper forming aids
-
- 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
-
- 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
- D21H21/16—Sizing or water-repelling agents
-
- 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
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/005—Mechanical treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Paper (AREA)
Abstract
The invention relates to the technical field of thermal transfer paper, and particularly discloses a preparation process of thermal transfer paper with ultralow expansion rate, which comprises the steps of mixing bamboo pulp and bleached sulfate softwood pulp serving as raw materials of mixed pulp with modified silicon dioxide coated graphene, nanocellulose, a sizing agent and a loosening agent to prepare a base material, mixing an ink-absorbing material, a fixing agent, the silicon dioxide coated graphene and a leveling agent to obtain a mixed coating, coating the mixed coating on the base material, and carrying out calendaring and leveling treatment to obtain the thermal transfer paper with ultralow expansion rate, wherein the silicon dioxide coated graphene has excellent mechanical property and acts together with the nanocellulose, and generates binding force with fibrous tissues in the mixed pulp, so that the paper strength can be obviously improved, and the obtained thermal transfer paper has the characteristics of ultralow expansion rate, high strength and high ink bearing capacity.
Description
Technical Field
The invention relates to the technical field of thermal transfer paper, in particular to a preparation process of thermal transfer paper with ultralow expansion rate.
Background
The thermal transfer printing process is different from the traditional printing technology, belongs to the anhydrous printing and dyeing technology, and can reduce sewage pollution caused by printing and dyeing, the thermal transfer printing process is not directly used for printing on a printing stock, but is used for printing ink on thermal transfer printing paper, then one surface of the thermal transfer printing paper with patterns is attached to the printing stock, and an electric iron or a hot-stamping machine is used for properly heating and pressurizing on a paper back so as to transfer the patterns onto the printing stock. The heat transfer printing paper is short for heat transfer printing paper, also called heat transfer paper or hot drawing paper, is one of main consumables of a heat transfer printing process, plays a very important role in the transfer printing industry as a carrier of heat transfer printing products, is one of key links for determining printing quality, and has wide application in the industries of textile, electronics, construction and the like.
In the use process of the thermal transfer paper, the thermal transfer paper is required to have good fitting property, is suitable for high-speed printing and curling, has high thermal conductivity, can properly reduce the temperature in the thermal transfer process, improves the transfer speed, effectively reduces the cost and improves the efficiency. The traditional thermal transfer paper can become wet and expand due to ink absorption, so that the paper is subjected to swelling deformation and arching, the paper is transversely elongated and changed, the printing quality is affected, a friction nozzle can be arranged, a printing pattern becomes dirty, and the nozzle is seriously damaged. In the transfer printing process, the temperature is high, so that the transfer printing paper is warped and rolled, and the transfer printing is misplaced, so that the transfer printing is failed. The existing transfer paper is low in strength, is difficult to recover to a completely flat state after being curled and stored, and also can cause low heat transfer efficiency, and meanwhile, the heat transfer effect can be influenced.
Therefore, the development of the thermal transfer paper with ultralow expansion rate, high strength and high ink-bearing capacity has important practical value and significance.
Disclosure of Invention
In order to solve the technical problems, the invention provides a preparation process of thermal transfer paper with ultralow expansion ratio, and solves the problems of high expansion ratio, low strength and low ink bearing capacity of the thermal transfer paper.
In order to achieve the above purpose, the invention discloses a preparation process of thermal transfer paper with ultra-low expansion rate, which comprises the following steps:
step one: preparing a base material, putting the bamboo pulp and bleached sulfate softwood pulp into a pulping machine for pulping respectively, and uniformly mixing the bamboo pulp and the bleached sulfate softwood pulp after pulping to obtain mixed pulp;
transferring the mixed slurry into a batching pool, adding modified silicon dioxide coated graphene, nanocellulose, sizing agent and bulking agent, uniformly mixing, pumping into a headbox, forming by a fourdrinier, dehydrating, squeezing and drying, controlling the vacuum degree to be 0.09-0.15MPa, and controlling the drying temperature to be 105-110 ℃ and the moisture to be 5-6%, thus obtaining a substrate;
step two: coating, namely uniformly mixing the ink-absorbing material, the disperse dye fixing agent, the silicon dioxide coated graphene and the leveling agent to obtain a mixed coating;
coating the mixed coating on the substrate prepared in the first step in a coating mode, and drying at 55-65 ℃ after coating is finished to obtain a coated substrate;
step three: and (3) processing a curled finished product, carrying out calendaring and leveling treatment on the coated base material by using a controllable medium-high soft roll calender, rolling, slitting, rewinding and packaging by using a high-speed paper machine, and obtaining the heat transfer paper with ultra-low expansion rate.
Preferably, in the first step, the concentration of the bamboo pulp is 6.5-8%, the beating degree after beating is 36-38 DEG SR, the concentration of the bleached sulfate needle wood pulp is 5.5-7%, and the beating degree after beating is 28-31 DEG SR; the mass ratio of the pulped bamboo pulp to the bleached sulfate needle wood pulp in the mixed pulp is 100:65-115.
Further, the bleached kraft process of step one is a pine process.
Preferably, in the first step, the mass ratio of the mixed slurry, the modified silicon dioxide coated graphene, the nanocellulose, the sizing agent and the bulking agent is 100:8-13:1-3:1.2-2:0.2-0.3.
Preferably, the sizing agent in the first step comprises one of cationic polymer, rosin sizing agent and alkyl ketene dimer; the loosening agent in the first step comprises sodium silicate.
Further, in the step one, the cationic polymer is a cationized starch.
Preferably, the bamboo pulp in the first step is dried bamboo chips and is prepared by pulping through a sulfate method.
Preferably, the preparation method of the modified silica coated graphene in the first step comprises the following steps:
(1) Ultrasonically dispersing graphene oxide into mixed acid, mixing the mixed acid with sulfuric acid and nitric acid with the volume of 4:1, performing acidification treatment, wherein the mass ratio of the graphene oxide to the mixed acid is 100:285-340, the acidification treatment temperature is 90-95 ℃, the acidification treatment time is 3-4 hours, filtering after treatment is finished, washing with deionized water, drying to obtain acidified graphene, dispersing the acidified graphene into a mixed solution of ethanol, ammonia water and deionized water, uniformly mixing, adding tetraethyl orthosilicate, reacting for 3-5 hours at 25-35 ℃, washing with deionized water after the reaction is finished, centrifuging at the centrifuging rate of 6000r/min, and vacuum drying for 8 hours at 60 ℃ to obtain silicon dioxide coated graphene;
(2) Ultrasonically dispersing the silicon dioxide coated graphene into N, N-dimethylformamide, adding sodium hydroxide and hexadecenyl succinic anhydride, uniformly mixing, adding 4-dimethylaminopyridine, reacting for 4-5 hours at 60-70 ℃, wherein the mass ratio of the N, N-dimethylformamide to the silicon dioxide coated graphene to the sodium hydroxide to the hexadecenyl succinic anhydride to the 4-dimethylaminopyridine is 1500-1800:100:2-4:65-85:5-9, filtering after the reaction is finished, washing with deionized water, and drying for 12 hours at 80 ℃ to obtain the modified silicon dioxide coated graphene.
Preferably, the concentration of sulfuric acid used in the preparation process of the modified silicon dioxide coated graphene in the step (1) is 12mol/L, and the concentration of nitric acid is 10mol/L.
Preferably, in the second step, the mass ratio of the ink absorbing material, the disperse dye fixing agent, the silicon dioxide coated graphene and the leveling agent is 65-85:3-5:5-8:0.2-0.4.
Further, the silica-coated graphene is consistent with the silica-coated graphene in the first step.
Preferably, the leveling agent in the second step is an organosilicon leveling agent.
Preferably, the coating amount in the coating process in the step two is 2.5-3.5g/m 2 。
Preferably, the ink absorbing material in the second step comprises one of sodium carboxymethyl cellulose, sodium carboxymethyl starch and sodium alginate.
Preferably, the fixing agent in the second step comprises one of dodecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride and octadecyl trimethyl ammonium chloride.
Preferably, in the step three, the rolling is 120-140kN/m 2 The temperature of the roll surface was 125-150 ℃.
Compared with the prior art, the invention has the beneficial effects that:
the silicon dioxide coated graphene prepared in the invention has rich pore canal structures, can improve the ink supporting capability of transfer paper, can be uniformly dispersed in a base material after modification, has excellent mechanical property and combined action with nanocellulose, can be combined with fiber tissues in mixed slurry to generate binding force, can obviously improve the strength of paper, enables the paper to have certain stiffness and anti-curling performance, can quickly recover a flat state after being subjected to curling storage for a period of time, can also reduce the expansion rate of the paper in the thermal transfer process, has excellent hydrophobic performance on hexadecenyl succinic anhydride introduced on the surface of the silicon dioxide coated graphene, has lower surface energy after film formation, shows stronger hydrophobic effect, effectively avoids the expansion deformation of the paper due to water absorption, accelerates the drying speed of the ink, and simultaneously increases the release rate of the ink and the ink bearing capacity of the paper. Meanwhile, the flexibility is improved, the paper folding resistance is improved, the fold resistance of the sized paper is improved, the added sizing agent can endow the paper with water absorption capacity, the sizing agent has good internal sizing effect, the water absorption capacity is controlled in a proper range on the basis of the surface coating of the paper, and the loosening agent, which is also an adhesive and a dry strength agent, is adhered and expanded in the paper drying process, so that the paper bulk and the dry strength can be increased.
According to the invention, the ink-absorbing material is sodium carboxymethyl cellulose and the like, the ink-absorbing performance is excellent, the film forming performance is high, the formed functional coating is not easy to permeate into the raw paper layer, the ink-absorbing material has good ink carrying performance under the condition of low coating weight, the problems of permeation deficiency, low transfer rate, non-fine pattern and the like caused by ink permeation are reduced, the disperse dye fixing agent in the coating can be quickly combined with the anionic disperse dye in the dye to react, a complex with certain water resistance is formed, the ink permeation is prevented, the ink cannot diffuse, the image fineness is high, meanwhile, the silica-coated graphene has good sedimentation effect, and the uniform mixed coating is obtained, so that the coating is smoother.
Drawings
FIG. 1 is a flow chart of preparing ultra-low expansion thermal transfer paper in the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
Example 1
A preparation process of thermal transfer paper with ultralow expansion rate comprises the following steps:
(1) Preparing a substrate
1) Respectively pulping the bamboo pulp and the bleached sulfate pine pulp in a pulping machine, and uniformly mixing the bamboo pulp and the bleached sulfate pine pulp after pulping, wherein the concentration of the bamboo pulp is 6.5%, the pulping degree after pulping is 36 DEG SR, the concentration of the bleached sulfate needle wood pulp is 5.5%, the pulping degree after pulping is 28 DEG SR, and the mass ratio of the bamboo pulp after pulping to the bleached sulfate needle wood pulp is 100:65, so as to obtain mixed pulp;
2) Ultrasonically dispersing graphene oxide into mixed acid, mixing the mixed acid with sulfuric acid and nitric acid in a volume of 4:1, wherein the concentration of the sulfuric acid is 12mol/L, the concentration of the nitric acid is 10mol/L, performing acidification, wherein the mass ratio of the graphene oxide to the mixed acid is 100:285, the temperature of the acidification is 90 ℃, the time of the acidification is 4 hours, filtering, washing with deionized water, drying to obtain the acidified graphene, dispersing the acidified graphene into a mixed solution of ethanol, ammonia water and deionized water, uniformly mixing, adding tetraethyl orthosilicate, reacting for 5 hours at 25 ℃, washing with deionized water, centrifuging at a centrifuging rate of 6000r/min, and vacuum drying for 8 hours at 60 ℃ to obtain the silicon dioxide coated graphene;
ultrasonically dispersing the silicon dioxide coated graphene into N, N-dimethylformamide, adding sodium hydroxide and hexadecenyl succinic anhydride, uniformly mixing, adding 4-dimethylaminopyridine, and reacting at 60 ℃ for 5 hours, wherein the mass ratio of the N, N-dimethylformamide to the silicon dioxide coated graphene to the sodium hydroxide to the hexadecenyl succinic anhydride to the 4-dimethylaminopyridine is 1500:100:2:65:5, filtering after the reaction is finished, washing with deionized water, and drying at 80 ℃ for 12 hours to obtain modified silicon dioxide coated graphene;
3) Adding mixed slurry, modified silicon dioxide coated graphene, nano cellulose, sizing agent cationic starch and loosening agent sodium silicate with the mass ratio of 100:8:1:1.2:0.2 into a batching pool, uniformly mixing, pumping into a headbox, forming by a fourdrinier, dehydrating, squeezing and drying, controlling the vacuum degree to be 0.09MPa, controlling the drying temperature to be 105 ℃ and controlling the moisture to be 5%, and obtaining a base material;
(2) Coating
Uniformly mixing an ink absorbing material sodium carboxymethyl cellulose, a disperse dye fixing agent cetyltrimethylammonium chloride, silicon dioxide coated graphene and an organosilicon leveling agent in a mass ratio of 65:3:5:0.2 to obtain a mixed coating;
the mixed paint is coated on the substrate prepared in the step one in a coating mode, wherein the coating amount is 2.5g/m 2 Drying at 55 ℃ after coating is completed to obtain a coated substrate;
(3) Working a curled finished product
After the coated substrate is subjected to calendaring leveling treatment by using a controllable medium-high soft roll calender, the roll is 120kN/m in the calendaring leveling process 2 The temperature of the surface of the roller is 125 ℃, the roller is rolled, and a high-speed paper machine is used for slitting, rewinding and packaging to obtain the heat transfer paper with ultra-low expansion rate.
Example 2
A preparation process of thermal transfer paper with ultralow expansion rate comprises the following steps:
(1) Preparing a substrate
1) Respectively pulping the bamboo pulp and the bleached sulfate pine pulp in a pulping machine, and uniformly mixing the bamboo pulp and the bleached sulfate pine pulp after pulping, wherein the concentration of the bamboo pulp is 7%, the pulping degree after pulping is 37 DEG SR, the concentration of the bleached sulfate needle wood pulp is 6%, the pulping degree after pulping is 30 DEG SR, and the mass ratio of the bamboo pulp after pulping to the bleached sulfate needle wood pulp is 100:95, so as to obtain mixed pulp;
2) Ultrasonically dispersing graphene oxide into mixed acid, mixing the mixed acid with sulfuric acid and nitric acid in a volume of 4:1, wherein the concentration of the sulfuric acid is 12mol/L, the concentration of the nitric acid is 10mol/L, performing acidification, wherein the mass ratio of the graphene oxide to the mixed acid is 100:310, the temperature of the acidification is 92 ℃, the time of the acidification is 3.5 hours, filtering after the treatment is completed, washing with deionized water, drying to obtain the acidified graphene, dispersing the acidified graphene into a mixed solution of ethanol, ammonia water and deionized water, uniformly mixing, adding tetraethyl orthosilicate, reacting at 30 ℃ for 4 hours, washing with deionized water after the reaction is completed, centrifuging, and vacuum drying at 60 ℃ for 8 hours to obtain silicon dioxide coated graphene;
ultrasonically dispersing the silicon dioxide coated graphene into N, N-dimethylformamide, adding sodium hydroxide and hexadecenyl succinic anhydride, uniformly mixing, adding 4-dimethylaminopyridine, reacting at 65 ℃ for 4.5 hours, wherein the mass ratio of the N, N-dimethylformamide to the silicon dioxide coated graphene to the sodium hydroxide to the hexadecenyl succinic anhydride to the 4-dimethylaminopyridine is 1650:100:3:75:7, filtering after the reaction is finished, washing with deionized water, and drying at 80 ℃ for 12 hours to obtain modified silicon dioxide coated graphene;
3) Adding mixed slurry, modified silicon dioxide coated graphene, nano cellulose, sizing agent cationic starch and bulking agent sodium silicate with the mass ratio of 100:10:1.5:1.5:0.24 into a batching pool, uniformly mixing, pumping into a headbox, forming by a fourdrinier, dehydrating, squeezing and drying, controlling the vacuum degree to be 0.12MPa, controlling the drying temperature to be 108 ℃ and controlling the water content to be 5.5%, and obtaining a base material;
(2) Coating
Uniformly mixing an ink absorbing material sodium carboxymethyl cellulose, a disperse dye fixing agent cetyltrimethylammonium chloride, silicon dioxide coated graphene and an organosilicon leveling agent according to the mass ratio of 75:4:6:0.3 to obtain a mixed coating;
the mixed paint is coated on the substrate prepared in the step one in a coating mode, wherein the coating amount is 2.8g/m 2 Drying at 60 ℃ after coating is completed to obtain a coated substrate;
(3) Working a curled finished product
After the coated substrate is subjected to calendaring leveling treatment by using a controllable medium-high soft roll calender, the roll is 130kN/m in the calendaring leveling process 2 The temperature of the surface of the roller is 140 ℃, the roller is rolled, and a high-speed paper machine is used for slitting, rewinding and packaging to obtain the heat transfer paper with ultra-low expansion rate.
Example 3
A preparation process of thermal transfer paper with ultralow expansion rate comprises the following steps:
(1) Preparing a substrate
1) Respectively pulping the bamboo pulp and the bleached sulfate pine pulp in a pulping machine, and uniformly mixing the bamboo pulp and the bleached sulfate pine pulp after pulping, wherein the concentration of the bamboo pulp is 7%, the pulping degree after pulping is 37 DEG SR, the concentration of the bleached sulfate needle wood pulp is 6%, the pulping degree after pulping is 30 DEG SR, and the mass ratio of the bamboo pulp after pulping to the bleached sulfate needle wood pulp is 100:95, so as to obtain mixed pulp;
2) Ultrasonically dispersing graphene oxide into mixed acid, mixing the mixed acid with sulfuric acid and nitric acid in a volume of 4:1, wherein the concentration of the sulfuric acid is 12mol/L, the concentration of the nitric acid is 10mol/L, performing acidification, wherein the mass ratio of the graphene oxide to the mixed acid is 100:310, the temperature of the acidification is 92 ℃, the time of the acidification is 3.5 hours, filtering after the treatment is completed, washing with deionized water, drying to obtain the acidified graphene, dispersing the acidified graphene into a mixed solution of ethanol, ammonia water and deionized water, uniformly mixing, adding tetraethyl orthosilicate, reacting at 30 ℃ for 4 hours, washing with deionized water after the reaction is completed, centrifuging, and vacuum drying at 60 ℃ for 8 hours to obtain silicon dioxide coated graphene;
ultrasonically dispersing the silicon dioxide coated graphene into N, N-dimethylformamide, adding sodium hydroxide and hexadecenyl succinic anhydride, uniformly mixing, adding 4-dimethylaminopyridine, reacting at 65 ℃ for 4.5 hours, wherein the mass ratio of the N, N-dimethylformamide to the silicon dioxide coated graphene to the sodium hydroxide to the hexadecenyl succinic anhydride to the 4-dimethylaminopyridine is 1650:100:3:75:7, filtering after the reaction is finished, washing with deionized water, and drying at 80 ℃ for 12 hours to obtain modified silicon dioxide coated graphene;
3) Adding mixed slurry, modified silicon dioxide coated graphene, nano cellulose, sizing agent cationic starch and bulking agent sodium silicate with the mass ratio of 100:12:2.5:1.8:0.28 into a batching pool, uniformly mixing, pumping into a headbox, forming by a fourdrinier, dehydrating, squeezing and drying, controlling the vacuum degree to be 0.12MPa, controlling the drying temperature to be 108 ℃ and controlling the water content to be 5.5%, and obtaining a base material;
(2) Coating
Uniformly mixing an ink absorbing material sodium carboxymethyl cellulose, a disperse dye fixing agent cetyltrimethylammonium chloride, silicon dioxide coated graphene and an organosilicon leveling agent according to the mass ratio of 75:4:6:0.3 to obtain a mixed coating;
the mixed paint is coated on the substrate prepared in the step one in a coating mode, wherein the coating amount is 3.2g/m 2 Drying at 60 ℃ after coating is completed to obtain a coated substrate;
(3) Working a curled finished product
After the coated substrate is subjected to calendaring leveling treatment by using a controllable medium-high soft roll calender, the roll is 130kN/m in the calendaring leveling process 2 The temperature of the surface of the roller is 140 ℃, the roller is rolled, and a high-speed paper machine is used for slitting, rewinding and packaging to obtain the heat transfer paper with ultra-low expansion rate.
Example 4
A preparation process of thermal transfer paper with ultralow expansion rate comprises the following steps:
(1) Preparing a substrate
1) Respectively pulping the bamboo pulp and the bleached sulfate pine pulp in a pulping machine, and uniformly mixing the bamboo pulp and the bleached sulfate pine pulp after pulping, wherein the concentration of the bamboo pulp is 8%, the pulping degree after pulping is 38 DEG SR, the concentration of the bleached sulfate needle wood pulp is 7%, the pulping degree after pulping is 31 DEG SR, and the mass ratio of the bamboo pulp after pulping to the bleached sulfate needle wood pulp is 100:115, so as to obtain mixed pulp;
2) Ultrasonically dispersing graphene oxide into mixed acid, mixing the mixed acid with sulfuric acid and nitric acid in a volume of 4:1, wherein the concentration of the sulfuric acid is 12mol/L, the concentration of the nitric acid is 10mol/L, performing acidification, wherein the mass ratio of the graphene oxide to the mixed acid is 100:340, the temperature of the acidification is 95 ℃, the time of the acidification is 3 hours, filtering, washing with deionized water, drying to obtain the acidified graphene, dispersing the acidified graphene into a mixed solution of ethanol, ammonia water and deionized water, uniformly mixing, adding tetraethyl orthosilicate, reacting for 3 hours at 35 ℃, washing with deionized water, centrifuging at a centrifuging rate of 6000r/min, and vacuum drying for 8 hours at 60 ℃ to obtain the silicon dioxide coated graphene;
ultrasonically dispersing the silicon dioxide coated graphene into N, N-dimethylformamide, adding sodium hydroxide and hexadecenyl succinic anhydride, uniformly mixing, adding 4-dimethylaminopyridine, and reacting at 70 ℃ for 4 hours, wherein the mass ratio of the N, N-dimethylformamide, the silicon dioxide coated graphene, the sodium hydroxide, the hexadecenyl succinic anhydride and the 4-dimethylaminopyridine is 1800:100:4:85:9, filtering after the reaction is finished, washing by using deionized water, and drying at 80 ℃ for 12 hours to obtain modified silicon dioxide coated graphene;
3) Adding mixed slurry, modified silicon dioxide coated graphene, nanocellulose, sizing agent cationized starch and loosening agent sodium silicate with the mass ratio of 100:13:3:2:0.3 into a batching pool, uniformly mixing, pumping into a headbox, forming by a fourdrinier machine, dehydrating, squeezing and drying, controlling the vacuum degree to be 0.15MPa, controlling the drying temperature to be 110 ℃ and controlling the moisture to be 6%, and obtaining a substrate;
(2) Coating
Uniformly mixing an ink absorbing material sodium carboxymethyl cellulose, a disperse dye fixing agent cetyltrimethylammonium chloride, silicon dioxide coated graphene and an organosilicon leveling agent in a mass ratio of 85:5:8:0.4 to obtain a mixed coating;
the mixed paint is coated on the substrate prepared in the step one in a coating mode, wherein the coating amount is 3.5g/m 2 Drying at 65 ℃ after coating is completed to obtain a coated substrate;
(3) Working a curled finished product
After the coated substrate is subjected to calendaring leveling treatment by using a controllable medium-high soft roll calender, the roll is 140kN/m in the calendaring leveling process 2 The temperature of the surface of the roller is 150 ℃, the roller is rolled, and a high-speed paper machine is used for slitting, rewinding and packaging to obtain the thermal transfer paper with ultra-low expansion rate.
Comparative example 1
A preparation process of thermal transfer paper with ultralow expansion rate comprises the following steps:
(1) Preparing a substrate
1) Respectively pulping the bamboo pulp and the bleached sulfate pine pulp in a pulping machine, and uniformly mixing the bamboo pulp and the bleached sulfate pine pulp after pulping, wherein the concentration of the bamboo pulp is 7%, the pulping degree after pulping is 37 DEG SR, the concentration of the bleached sulfate needle wood pulp is 6%, the pulping degree after pulping is 30 DEG SR, and the mass ratio of the bamboo pulp after pulping to the bleached sulfate needle wood pulp is 100:95, so as to obtain mixed pulp;
2) Adding mixed slurry, graphene oxide, nanocellulose, sizing agent cationic starch and loosening agent sodium silicate with the mass ratio of 100:12:2.5:1.8:0.28 into a batching pool, uniformly mixing, pumping into a headbox, forming by a fourdrinier machine, dehydrating, squeezing and drying, controlling the vacuum degree to be 0.12MPa, controlling the drying temperature to be 108 ℃ and controlling the moisture to be 5.5%, and obtaining a base material;
(2) Coating
Uniformly mixing an ink absorbing material sodium carboxymethyl cellulose, a disperse dye fixing agent cetyltrimethylammonium chloride, silicon dioxide coated graphene and an organosilicon leveling agent according to the mass ratio of 75:4:6:0.3 to obtain a mixed coating;
the mixed paint is coated on the substrate prepared in the step one in a coating mode, wherein the coating amount is 3.2g/m 2 Drying at 60 ℃ after coating is completed to obtain a coated substrate;
(3) Working a curled finished product
After the coated substrate is subjected to calendaring leveling treatment by using a controllable medium-high soft roll calender, the roll is 130kN/m in the calendaring leveling process 2 The temperature of the surface of the roller is 140 ℃, the roller is wound, and a high-speed paper machine is used for slitting,Rewinding and packaging to obtain the heat transfer paper with ultra-low expansion rate.
Comparative example 2
A preparation process of thermal transfer paper with ultralow expansion rate comprises the following steps:
(1) Preparing a substrate
1) Respectively pulping the bamboo pulp and the bleached sulfate pine pulp in a pulping machine, and uniformly mixing the bamboo pulp and the bleached sulfate pine pulp after pulping, wherein the concentration of the bamboo pulp is 7%, the pulping degree after pulping is 37 DEG SR, the concentration of the bleached sulfate needle wood pulp is 6%, the pulping degree after pulping is 30 DEG SR, and the mass ratio of the bamboo pulp after pulping to the bleached sulfate needle wood pulp is 100:95, so as to obtain mixed pulp;
2) Ultrasonically dispersing graphene oxide into mixed acid, mixing the mixed acid with sulfuric acid and nitric acid in a volume of 4:1, wherein the concentration of the sulfuric acid is 12mol/L, the concentration of the nitric acid is 10mol/L, performing acidification, wherein the mass ratio of the graphene oxide to the mixed acid is 100:310, the temperature of the acidification is 92 ℃, the time of the acidification is 3.5 hours, filtering after the treatment is completed, washing with deionized water, drying to obtain the acidified graphene, dispersing the acidified graphene into a mixed solution of ethanol, ammonia water and deionized water, uniformly mixing, adding tetraethyl orthosilicate, reacting at 30 ℃ for 4 hours, washing with deionized water after the reaction is completed, centrifuging, and vacuum drying at 60 ℃ for 8 hours to obtain silicon dioxide coated graphene;
ultrasonically dispersing the silicon dioxide coated graphene into N, N-dimethylformamide, adding sodium hydroxide and hexadecenyl succinic anhydride, uniformly mixing, adding 4-dimethylaminopyridine, reacting at 65 ℃ for 4.5 hours, wherein the mass ratio of the N, N-dimethylformamide to the silicon dioxide coated graphene to the sodium hydroxide to the hexadecenyl succinic anhydride to the 4-dimethylaminopyridine is 1650:100:3:75:7, filtering after the reaction is finished, washing with deionized water, and drying at 80 ℃ for 12 hours to obtain modified silicon dioxide coated graphene;
3) Adding mixed slurry, modified silicon dioxide coated graphene, nano cellulose, sizing agent cationic starch and bulking agent sodium silicate with the mass ratio of 100:12:2.5:1.8:0.28 into a batching pool, uniformly mixing, pumping into a headbox, forming by a fourdrinier, dehydrating, squeezing and drying, controlling the vacuum degree to be 0.12MPa, controlling the drying temperature to be 108 ℃ and controlling the water content to be 5.5%, and obtaining a base material;
(2) Working a curled finished product
After the base material is subjected to calendaring leveling treatment by using a controllable medium-high soft roll calender, the roll is 130kN/m in the calendaring leveling process 2 The temperature of the surface of the roller is 140 ℃, the roller is rolled, and a high-speed paper machine is used for slitting, rewinding and packaging to obtain the heat transfer paper with ultra-low expansion rate.
The graphene oxide used in the examples and comparative examples of the present invention was a multilayer graphene oxide available from su-state Hengqiu technologies, inc. (purity > 95wt%, thickness 3.4-8nm, platelet diameter 10-50 μm); the cationized starch is purchased from Guangdong Hongxin biotechnology limited company with the product number of 88688; nanocellulose was purchased from rennet materials technologies (Shanghai) limited, cat No. 9112; sodium carboxymethyl cellulose was purchased from hebei yan chemical company limited; sodium silicate was purchased from the company of the chemical industry limited in the yellow mountain she county; other reagents are commercially available.
The heat transfer papers with ultra-low expansion ratio prepared in examples 1-4 and comparative examples 1-2 were used as samples for performance test, samples with similar gram weights were selected, standard reference GB/T451.2-2002 was selected for quantitative determination of paper box board, and after the samples were selected, the corresponding tests were as follows:
1) And (3) testing the expansion rate: testing according to the test standard of the retractility of GB/T459-2002 paper and paper boards;
2) Tensile strength test: testing according to the test standard of the GB/T12914-2018 paper and paperboard tensile strength measuring constant speed stretching method (20 mm/min);
3) Water absorption test: testing was performed according to the test standard of GB/T1540-2002 determination of the absorbency of paper and board (the Bo method);
the test results are shown in table 1:
TABLE 1
As can be seen from the test results in Table 1, examples 1-4 and comparative examples 1-2 have lower elongation and higher tensile strength, effectively improve the warpage problem, and have better water absorption, stronger ink carrying capacity, no penetration, and clearer pattern at the time of transfer.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A preparation process of thermal transfer paper with ultralow expansion rate is characterized by comprising the following steps: the method comprises the following steps:
step one: pulping the bamboo pulp and bleached sulfate softwood pulp in a pulping machine respectively, and uniformly mixing the bamboo pulp and the bleached sulfate softwood pulp after pulping to obtain mixed pulp;
transferring the mixed slurry into a batching pool, adding modified silicon dioxide coated graphene, nanocellulose, sizing agent and bulking agent, uniformly mixing, pumping into a headbox, forming by a fourdrinier, dehydrating, squeezing and drying, controlling the vacuum degree to be 0.09-0.15MPa, and controlling the drying temperature to be 105-110 ℃ and the moisture to be 5-6%, thus obtaining a substrate;
step two: uniformly mixing an ink absorbing material, a fixing agent, silicon dioxide coated graphene and a leveling agent to obtain a mixed coating;
coating the mixed coating on the substrate prepared in the first step in a coating mode, and drying at 55-65 ℃ after coating is finished to obtain a coated substrate;
step three: and (3) carrying out calendaring and leveling treatment on the coated base material by using a controllable medium-high soft roller calendar, rolling, slitting, rewinding and packaging by using a high-speed paper machine, and obtaining the thermal transfer paper with ultra-low expansion rate.
2. The process for preparing the thermal transfer paper with ultralow expansion ratio according to claim 1, which is characterized in that: the concentration of the bamboo pulp in the first step is 6.5-8%, the beating degree after beating is 36-38 DEG SR, the concentration of the bleached sulfate softwood pulp is 5.5-7%, and the beating degree after beating is 28-31 DEG SR; the mass ratio of the pulped bamboo pulp to the bleached sulfate needle wood pulp in the mixed pulp is 100:65-115.
3. The process for preparing the thermal transfer paper with ultralow expansion ratio according to claim 1, which is characterized in that: in the first step, the mass ratio of the mixed slurry to the modified silicon dioxide coated graphene to the nanocellulose to the sizing agent to the bulking agent is 100:8-13:1-3:1.2-2:0.2-0.3.
4. The process for preparing the thermal transfer paper with ultralow expansion ratio according to claim 1, which is characterized in that: the sizing agent in the first step comprises one of cationic polymer, rosin sizing agent and alkyl ketene dimer; the loosening agent in the first step comprises sodium silicate.
5. The process for preparing the thermal transfer paper with ultralow expansion ratio according to claim 1, which is characterized in that: the preparation method of the modified silicon dioxide coated graphene in the first step comprises the following steps:
(1) Ultrasonically dispersing graphene oxide into mixed acid, mixing the mixed acid with sulfuric acid and nitric acid with the volume of 4:1, performing acidification treatment, wherein the mass ratio of the graphene oxide to the mixed acid is 100:285-340, the acidification treatment temperature is 90-95 ℃, the acidification treatment time is 3-4 hours, filtering after treatment is finished, washing with deionized water, drying to obtain acidified graphene, dispersing the acidified graphene into a mixed solution of ethanol, ammonia water and deionized water, uniformly mixing, adding tetraethyl orthosilicate, reacting for 3-5 hours at 25-35 ℃, washing with deionized water after the reaction is finished, centrifuging at the centrifuging rate of 6000r/min, and vacuum drying for 8 hours at 60 ℃ to obtain silicon dioxide coated graphene;
(2) Ultrasonically dispersing the silicon dioxide coated graphene into N, N-dimethylformamide, adding sodium hydroxide and hexadecenyl succinic anhydride, uniformly mixing, adding 4-dimethylaminopyridine, reacting for 4-5 hours at 60-70 ℃, wherein the mass ratio of the N, N-dimethylformamide to the silicon dioxide coated graphene to the sodium hydroxide to the hexadecenyl succinic anhydride to the 4-dimethylaminopyridine is 1500-1800:100:2-4:65-85:5-9, filtering after the reaction is finished, washing with deionized water, and drying for 12 hours at 80 ℃ to obtain the modified silicon dioxide coated graphene.
6. The process for preparing the thermal transfer paper with ultralow expansion ratio according to claim 1, which is characterized in that: in the second step, the mass ratio of the ink absorbing material, the fixing agent, the silicon dioxide coated graphene and the leveling agent is 65-85:3-5:5-8:0.2-0.4.
7. The process for preparing the thermal transfer paper with ultralow expansion ratio according to claim 1, which is characterized in that: the coating weight in the coating process in the step two is 2.5-3.5g/m 2 。
8. The process for preparing the thermal transfer paper with ultralow expansion ratio according to claim 1, which is characterized in that: the ink absorbing material in the second step comprises one of sodium carboxymethyl cellulose, sodium carboxymethyl starch and sodium alginate.
9. The process for preparing the thermal transfer paper with ultralow expansion ratio according to claim 1, which is characterized in that: the fixing agent in the second step comprises one of dodecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride and octadecyl trimethyl ammonium chloride.
10. The process for preparing the thermal transfer paper with ultralow expansion ratio according to claim 1, which is characterized in that: in the step three, the rolling is 120-140kN/m in the flattening process 2 The temperature of the roll surface was 125-150 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311024442.5A CN117051616A (en) | 2023-08-15 | 2023-08-15 | Preparation process of thermal transfer paper with ultralow expansion rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311024442.5A CN117051616A (en) | 2023-08-15 | 2023-08-15 | Preparation process of thermal transfer paper with ultralow expansion rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117051616A true CN117051616A (en) | 2023-11-14 |
Family
ID=88665765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311024442.5A Pending CN117051616A (en) | 2023-08-15 | 2023-08-15 | Preparation process of thermal transfer paper with ultralow expansion rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117051616A (en) |
-
2023
- 2023-08-15 CN CN202311024442.5A patent/CN117051616A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6939441B2 (en) | Stock size for paper or board manufacture, method for preparation of size, use of size | |
| EP1573129B1 (en) | Fiber suspension of enzyme treated sulphate pulp and carboxymethylcellulose for surface application in paperboard and paper production. | |
| EP2701920B1 (en) | Media used in digital high speed inkjet web press printing | |
| US10458067B2 (en) | High bulk tissue comprising cross-linked fibers | |
| WO2018183335A1 (en) | Fibrous structures comprising acidic cellulosic fibers and methods of manufacturing the same | |
| US6858255B2 (en) | Thickeners for paper dye compositions | |
| CN110565442A (en) | production method of ultralow-quantitative biblical paper | |
| JP3765149B2 (en) | Pulp, paper and coated paper | |
| CN108411704A (en) | A kind of high interfacial bonding strength dumb light U.S. line paper and preparation method thereof | |
| CN117051616A (en) | Preparation process of thermal transfer paper with ultralow expansion rate | |
| JP2018178343A (en) | Base paper for thermal transfer paper and thermal transfer paper | |
| CN113652895B (en) | Novel digital thermal sublimation transfer printing paper suitable for sizing method and production process thereof | |
| FI63083C (en) | FOERFARANDE FOER ELIMINERING AV CONVENTIONAL YTAPPRETERING AVAPPER | |
| CN114541170A (en) | Coating composition for papermaking, gravure light coated paper and manufacturing method thereof | |
| JP3852470B2 (en) | Paper manufacturing method | |
| CN115478447B (en) | High-quantitative coated digital printing facing base paper and preparation method thereof | |
| JP4087373B2 (en) | Bulky paper manufacturing method | |
| JP2970019B2 (en) | Method for producing double-sided cast coated paper | |
| CN114940034B (en) | Uncoated thermal transfer printing paper and preparation method thereof | |
| CN117758543A (en) | Offset printing surface sizing solution and preparation method and application thereof | |
| CN115125767A (en) | Thermal sublimation transfer paper coated with nanocellulose on surface and preparation method thereof | |
| KR100520464B1 (en) | Pulp quantity increasing method and paper making method using the same | |
| CN112695566A (en) | Sizing process suitable for moisture regain resistant kraft liner box board paper | |
| CN115125770A (en) | Recyclable white cardboard and preparation method thereof | |
| CN115748298A (en) | Cultural paper and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |