CN114013199B - High ink absorption high transfer rate thermal sublimation transfer paper and preparation process thereof - Google Patents
High ink absorption high transfer rate thermal sublimation transfer paper and preparation process thereof Download PDFInfo
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- CN114013199B CN114013199B CN202111156127.9A CN202111156127A CN114013199B CN 114013199 B CN114013199 B CN 114013199B CN 202111156127 A CN202111156127 A CN 202111156127A CN 114013199 B CN114013199 B CN 114013199B
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- 238000000859 sublimation Methods 0.000 title claims abstract description 30
- 230000008022 sublimation Effects 0.000 title claims abstract description 30
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 113
- 239000011248 coating agent Substances 0.000 claims abstract description 108
- 239000000839 emulsion Substances 0.000 claims abstract description 83
- 239000004014 plasticizer Substances 0.000 claims abstract description 53
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 39
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 39
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims abstract description 23
- 229920002472 Starch Polymers 0.000 claims abstract description 18
- 235000019698 starch Nutrition 0.000 claims abstract description 18
- 239000008107 starch Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims description 45
- 229920001661 Chitosan Polymers 0.000 claims description 31
- 238000010438 heat treatment Methods 0.000 claims description 29
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 25
- 239000002994 raw material Substances 0.000 claims description 25
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 21
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 21
- 239000006185 dispersion Substances 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 229920000297 Rayon Polymers 0.000 claims description 16
- 229910021389 graphene Inorganic materials 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 229920001807 Urea-formaldehyde Polymers 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 15
- 239000003822 epoxy resin Substances 0.000 claims description 15
- 229920000647 polyepoxide Polymers 0.000 claims description 15
- 229920013716 polyethylene resin Polymers 0.000 claims description 15
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- CVSVTCORWBXHQV-UHFFFAOYSA-N creatine Chemical compound NC(=[NH2+])N(C)CC([O-])=O CVSVTCORWBXHQV-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000003490 calendering Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 4
- IBLKWZIFZMJLFL-UHFFFAOYSA-N 1-phenoxypropan-2-ol Chemical compound CC(O)COC1=CC=CC=C1 IBLKWZIFZMJLFL-UHFFFAOYSA-N 0.000 claims description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 4
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims description 4
- 229960003624 creatine Drugs 0.000 claims description 3
- 239000006046 creatine Substances 0.000 claims description 3
- -1 dodecanol ester Chemical class 0.000 claims description 3
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 3
- 229940054190 hydroxypropyl chitosan Drugs 0.000 claims description 3
- 235000012424 soybean oil Nutrition 0.000 claims description 3
- 239000003549 soybean oil Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000011148 porous material Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 3
- 238000010023 transfer printing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/30—Thermal donors, e.g. thermal ribbons
-
- 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
Abstract
The invention relates to a high ink absorption high transfer rate thermal sublimation transfer paper and a preparation process thereof, wherein the thermal sublimation transfer paper comprises a base layer, an ink absorption coating, a water absorption coating and an anti-permeation layer; the anti-seepage layer is coated on the surface of the base layer, the ink-absorbing coating is coated on the surface of the anti-seepage layer after the anti-seepage layer is solidified, and the water-absorbing coating is coated on the surface of the ink-absorbing coating after the ink-absorbing coating is solidified; the invention adopts the ink-absorbing coating prepared by taking the porous material as the main body, so that the ink can be completely adhered to the transfer paper when falling on the transfer paper, thereby improving the transfer effect, ensuring that the ink layer is solid and full, the glossiness is high, the product quality is good, and simultaneously, the water-absorbing coating is prepared by starch, polyethylene oxide emulsion, plasticizer and sodium polyacrylate emulsion, so that the water can be suspended on the surface of the transfer paper in the process of thermal sublimation, the water is quickly evaporated in the process of thermal sublimation, and the transfer efficiency is improved.
Description
Technical Field
The invention relates to thermal sublimation transfer paper and a preparation process thereof, in particular to thermal sublimation transfer paper with high ink absorption and high transfer rate and a preparation process thereof, and belongs to the technical field of thermal sublimation transfer paper.
Background
The thermal transfer printing image has bright color and rich layers, and the effect is comparable to printing, and is different from printing in that the thermal transfer printing ink is sublimated by heating at high temperature and permeates into the surface of the medium to form the image. Therefore, no adhesive film is formed on the surface of the medium, the image is not dropped, the image is not cracked, the light resistance is strong, and the color is not faded for a long time; meanwhile, the heat transfer printing mode meets the personalized customization requirement. Thus, thermal transfer has been touted by young people.
However, in the existing transfer paper, when the ink amount is large in the transfer process (when the pattern with gorgeous colors needs to be transferred), the ink absorption amount of the paper is insufficient, so that the transfer rate is reduced, and the transfer effect is affected. Therefore, the thermal sublimation transfer paper with high ink absorption and high transfer rate and the preparation process thereof are provided.
Disclosure of Invention
The invention aims to provide high-ink-absorption high-transfer-rate thermal sublimation transfer paper and a preparation process thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the thermal sublimation transfer paper comprises a base layer, an ink-absorbing coating, a water-absorbing coating and an anti-permeation layer;
the anti-seepage layer is coated on the surface of the base layer, the ink-absorbing coating is coated on the surface of the anti-seepage layer after the anti-seepage layer is solidified, and the water-absorbing coating is coated on the surface of the ink-absorbing coating after the ink-absorbing coating is solidified;
the ink-absorbing coating is prepared from the following raw materials in parts by weight: 12-18 parts of graphene powder, 8-15 parts of viscose fiber, 4-8 parts of chitosan, 2-4 parts of polyvinyl alcohol emulsion, 2-4 parts of plasticizer and 3-4 parts of sodium polyacrylate emulsion;
the water-absorbing coating is prepared from the following raw materials in parts by weight: 4-6 parts of starch, 8-15 parts of polyethylene oxide emulsion, 1-2 parts of plasticizer and 5-8 parts of sodium polyacrylate emulsion;
the permeation prevention layer is prepared from the following raw materials in parts by weight: 6-8 parts of polyethylene resin, 3-5 parts of urea-formaldehyde resin, 4-6 parts of epoxy resin, 2-3 parts of plasticizer and 1-6 parts of nano titanium dioxide dispersion liquid.
As a further preferred aspect of the present invention: the chitosan is any one or a mixture of more of creatine chitosan, carboxymethyl chitosan, quaternized chitosan and hydroxypropyl chitosan.
As a further preferred aspect of the present invention: the nano titanium dioxide dispersion liquid is prepared by mixing nano titanium dioxide and water according to the following ratio of 1: 150-200.
As a further preferred aspect of the present invention: the mass fraction of the polyvinyl alcohol emulsion is 65-70%, and the mass fraction of the polyethylene oxide emulsion is 45-70%.
As a further preferred aspect of the present invention: the mass fraction of the raw material sodium polyacrylate emulsion in the ink absorbing coating and the water absorbing coating is 55-80%.
As a further preferred aspect of the present invention: the raw material plasticizers in the ink-absorbing coating, the water-absorbing coating and the permeation-preventing layer are any one or a mixture of more of phthalic acid, terephthalic acid, propylene glycol methyl ether, propylene glycol phenyl ether, dodecanol ester and epoxidized soybean oil.
The invention also provides a preparation process of the high-ink-absorption high-transfer-rate thermal sublimation transfer paper, wherein the preparation process of the thermal sublimation transfer paper comprises the following steps of:
s1, preparing an anti-permeation layer: mixing polyethylene resin, urea-formaldehyde resin, epoxy resin, plasticizer and nano titanium dioxide dispersion liquid to form a first solution;
s2, preparing an ink-absorbing coating: mixing graphene powder, viscose, chitosan, polyvinyl alcohol emulsion, plasticizer and sodium polyacrylate emulsion to form a second solution;
s3, preparing a water-absorbing coating: mixing starch, polyethylene oxide emulsion, plasticizer and sodium polyacrylate emulsion to form a third solution;
s4, uniformly coating the first solution obtained in the step S1 on the surface of the base layer, after drying treatment, coating the second solution obtained in the step S2, after continuing the drying treatment, coating the third solution obtained in the step S3, and drying treatment to obtain base paper coated with three layers of coatings;
s5, feeding the base paper obtained in the S4 into a state regulating cylinder for treatment, regulating the paper temperature, balancing the paper temperature, performing soft calendering and finishing, and then obtaining the transfer paper meeting the requirements through a horizontal paper winder.
As a further preferred aspect of the present invention: in the step S1, when the permeation prevention layer is prepared, firstly, adding polyethylene resin, urea resin and epoxy resin into a stirring barrel, stirring at the speed of 90-120r/min, heating at the temperature of 200-250 ℃ for 60-80min, then adding plasticizer and nano titanium dioxide dispersion liquid, and continuing stirring for 8-15min to obtain a first solution.
As a further preferred aspect of the present invention: in the step S2, when the ink-absorbing coating is prepared, graphene powder, viscose fiber, chitosan, polyvinyl alcohol emulsion and sodium polyacrylate emulsion are added into a stirring barrel, the stirring speed is 90-120r/min, the heating temperature is 200-250 ℃, the heating time is 60-80min, then a plasticizer is added, and stirring is continued for 8-15min, so that a second solution is obtained.
As a further preferred aspect of the present invention: in the step S3, when the water-absorbing coating is prepared, starch, polyethylene oxide emulsion and sodium polyacrylate emulsion are added into a stirring barrel, the stirring speed is 90-120r/min, the heating temperature is 200-250 ℃, the heating time is 60-80min, then plasticizer is added, and stirring is continued for 8-15min, so that a third solution is obtained.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts the ink-absorbing coating prepared by taking the porous material as the main body, so that the ink can be completely adhered to the transfer paper when falling on the transfer paper, thereby improving the transfer effect, ensuring that the ink layer is solid and full, the glossiness is high, the product quality is good, simultaneously, the water-absorbing coating is prepared by starch, polyethylene oxide emulsion, plasticizer and sodium polyacrylate emulsion, so that the water can be suspended on the surface of the transfer paper in the process of thermal sublimation, the water can be quickly evaporated in the process of thermal sublimation, the transfer efficiency is improved, and meanwhile, the permeation prevention effect of a base layer is improved by matching with the permeation prevention layer prepared by high-density material, thereby improving the quality of the transfer paper, improving the yield and ensuring the production efficiency.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, the present invention provides a technical solution: the high ink absorption high transfer rate thermal sublimation transfer paper comprises a base layer, an ink absorption coating, a water absorption coating and an anti-permeation layer;
the anti-seepage layer is coated on the surface of the base layer, the ink-absorbing coating is coated on the surface of the anti-seepage layer after the anti-seepage layer is solidified, and the water-absorbing coating is coated on the surface of the ink-absorbing coating after the ink-absorbing coating is solidified;
the ink-absorbing coating is prepared from the following raw materials in parts by weight: 12 parts of graphene powder, 8 parts of viscose fiber, 4 parts of chitosan, 2 parts of polyvinyl alcohol emulsion, 2 parts of plasticizer and 3 parts of sodium polyacrylate emulsion;
the water-absorbing coating is prepared from the following raw materials in parts by weight: 4 parts of starch, 8 parts of polyethylene oxide emulsion, 1 part of plasticizer and 5 parts of sodium polyacrylate emulsion;
the permeation-preventing layer is prepared from the following raw materials in parts by weight: 6 parts of polyethylene resin, 3 parts of urea-formaldehyde resin, 4 parts of epoxy resin, 2 parts of plasticizer and 1 part of nano titanium dioxide dispersion liquid.
In this embodiment, specific: the chitosan is creatine chitosan.
In this embodiment, specific: the nano titanium dioxide dispersion liquid is prepared by mixing nano titanium dioxide and water according to the following ratio of 1:150 proportion.
In this embodiment, specific: the mass fraction of the polyvinyl alcohol emulsion is 65%, and the mass fraction of the polyethylene oxide emulsion is 45%.
In this embodiment, specific: the mass fraction of the sodium polyacrylate emulsion serving as a raw material in the ink-absorbing coating and the water-absorbing coating is 55%.
In this embodiment, specific: the raw material plasticizer in the ink-absorbing coating, the water-absorbing coating and the permeation-preventing layer is phthalic acid.
The invention also provides a preparation process of the high-ink-absorption high-transfer-rate thermal sublimation transfer paper, which comprises the following steps of:
s1, preparing an anti-permeation layer: mixing polyethylene resin, urea-formaldehyde resin, epoxy resin, plasticizer and nano titanium dioxide dispersion liquid to form a first solution;
s2, preparing an ink-absorbing coating: mixing graphene powder, viscose, chitosan, polyvinyl alcohol emulsion, plasticizer and sodium polyacrylate emulsion to form a second solution;
s3, preparing a water-absorbing coating: mixing starch, polyethylene oxide emulsion, plasticizer and sodium polyacrylate emulsion to form a third solution;
s4, uniformly coating the first solution obtained in the step S1 on the surface of the base layer, after drying treatment, coating the second solution obtained in the step S2, after continuing the drying treatment, coating the third solution obtained in the step S3, and drying treatment to obtain base paper coated with three layers of coatings;
s5, feeding the base paper obtained in the S4 into a state regulating cylinder for treatment, regulating the paper temperature, balancing the paper temperature, performing soft calendering and finishing, and then obtaining the transfer paper meeting the requirements through a horizontal paper winder.
In this embodiment, specific: in the step S1, when the permeation prevention layer is prepared, polyethylene resin, urea resin and epoxy resin are firstly added into a stirring barrel, the stirring speed is 90r/min, the heating temperature is 200 ℃, the heating time is 60min, then plasticizer and nano titanium dioxide dispersion liquid are added, and stirring is continued for 8min, so that a first solution is obtained.
In this embodiment, specific: in the step S2, when the ink-absorbing coating is prepared, graphene powder, viscose, chitosan, polyvinyl alcohol emulsion and sodium polyacrylate emulsion are added into a stirring barrel, the stirring speed is 90r/min, the heating temperature is 200 ℃, the heating time is 60min, then a plasticizer is added, and stirring is continued for 8min, so that a second solution is obtained.
In this embodiment, specific: in the step S3, when the water-absorbing coating is prepared, starch, polyethylene oxide emulsion and sodium polyacrylate emulsion are added into a stirring barrel, the stirring speed is 90r/min, the heating temperature is 200 ℃, the heating time is 60min, then plasticizer is added, and stirring is continued for 8min, so that a third solution is obtained.
Example two
Referring to fig. 1, the present invention provides a technical solution: the high ink absorption high transfer rate thermal sublimation transfer paper comprises a base layer, an ink absorption coating, a water absorption coating and an anti-permeation layer;
the anti-seepage layer is coated on the surface of the base layer, the ink-absorbing coating is coated on the surface of the anti-seepage layer after the anti-seepage layer is solidified, and the water-absorbing coating is coated on the surface of the ink-absorbing coating after the ink-absorbing coating is solidified;
the ink-absorbing coating is prepared from the following raw materials in parts by weight: 15 parts of graphene powder, 12 parts of viscose fiber, 6 parts of chitosan, 3 parts of polyvinyl alcohol emulsion, 3 parts of plasticizer and 3 parts of sodium polyacrylate emulsion;
the water-absorbing coating is prepared from the following raw materials in parts by weight: 5 parts of starch, 12 parts of polyethylene oxide emulsion, 1 part of plasticizer and 7 parts of sodium polyacrylate emulsion;
the permeation-preventing layer is prepared from the following raw materials in parts by weight: 7 parts of polyethylene resin, 4 parts of urea-formaldehyde resin, 5 parts of epoxy resin, 2 parts of plasticizer and 4 parts of nano titanium dioxide dispersion liquid.
In this embodiment, specific: the chitosan is a mixture of carboxymethyl chitosan, quaternized chitosan and hydroxypropyl chitosan.
In this embodiment, specific: the nano titanium dioxide dispersion liquid is prepared by mixing nano titanium dioxide and water according to the following ratio of 1:180 proportion.
In this embodiment, specific: the mass fraction of the polyvinyl alcohol emulsion is 65%, and the mass fraction of the polyethylene oxide emulsion is 45%.
In this embodiment, specific: the mass fraction of the sodium polyacrylate emulsion serving as a raw material in the ink-absorbing coating and the water-absorbing coating is 55%.
In this embodiment, specific: the raw material plasticizers in the ink-absorbing coating, the water-absorbing coating and the permeation-preventing layer are mixed by propylene glycol phenyl ether, dodecanol ester and epoxidized soybean oil.
The invention also provides a preparation process of the high-ink-absorption high-transfer-rate thermal sublimation transfer paper, which comprises the following steps of:
s1, preparing an anti-permeation layer: mixing polyethylene resin, urea-formaldehyde resin, epoxy resin, plasticizer and nano titanium dioxide dispersion liquid to form a first solution;
s2, preparing an ink-absorbing coating: mixing graphene powder, viscose, chitosan, polyvinyl alcohol emulsion, plasticizer and sodium polyacrylate emulsion to form a second solution;
s3, preparing a water-absorbing coating: mixing starch, polyethylene oxide emulsion, plasticizer and sodium polyacrylate emulsion to form a third solution;
s4, uniformly coating the first solution obtained in the step S1 on the surface of the base layer, after drying treatment, coating the second solution obtained in the step S2, after continuing the drying treatment, coating the third solution obtained in the step S3, and drying treatment to obtain base paper coated with three layers of coatings;
s5, feeding the base paper obtained in the S4 into a state regulating cylinder for treatment, regulating the paper temperature, balancing the paper temperature, performing soft calendering and finishing, and then obtaining the transfer paper meeting the requirements through a horizontal paper winder.
In this embodiment, specific: in the step S1, when the permeation prevention layer is prepared, polyethylene resin, urea resin and epoxy resin are firstly added into a stirring barrel, the stirring speed is 100r/min, the heating temperature is 220 ℃, the heating time is 70min, then plasticizer and nano titanium dioxide dispersion liquid are added, and stirring is continued for 10min, so that a first solution is obtained.
In this embodiment, specific: in the step S2, when the ink-absorbing coating is prepared, graphene powder, viscose, chitosan, polyvinyl alcohol emulsion and sodium polyacrylate emulsion are added into a stirring barrel, the stirring speed is 100r/min, the heating temperature is 220 ℃, the heating time is 70min, then a plasticizer is added, and stirring is continued for 10min, so that a second solution is obtained.
In this embodiment, specific: in the step S3, when the water-absorbing coating is prepared, starch, polyethylene oxide emulsion and sodium polyacrylate emulsion are added into a stirring barrel, the stirring speed is 100r/min, the heating temperature is 220 ℃, the heating time is 70min, then plasticizer is added, and stirring is continued for 12min, so that a third solution is obtained.
Example III
Referring to fig. 1, the present invention further provides a technical solution: the high ink absorption high transfer rate thermal sublimation transfer paper comprises a base layer, an ink absorption coating, a water absorption coating and an anti-permeation layer;
the anti-seepage layer is coated on the surface of the base layer, the ink-absorbing coating is coated on the surface of the anti-seepage layer after the anti-seepage layer is solidified, and the water-absorbing coating is coated on the surface of the ink-absorbing coating after the ink-absorbing coating is solidified;
the ink-absorbing coating is prepared from the following raw materials in parts by weight: 18 parts of graphene powder, 15 parts of viscose fiber, 8 parts of chitosan, 4 parts of polyvinyl alcohol emulsion, 4 parts of plasticizer and 4 parts of sodium polyacrylate emulsion;
the water-absorbing coating is prepared from the following raw materials in parts by weight: 6 parts of starch, 15 parts of polyethylene oxide emulsion, 2 parts of plasticizer and 8 parts of sodium polyacrylate emulsion;
the permeation-preventing layer is prepared from the following raw materials in parts by weight: 8 parts of polyethylene resin, 5 parts of urea-formaldehyde resin, 6 parts of epoxy resin, 3 parts of plasticizer and 6 parts of nano titanium dioxide dispersion liquid.
In this embodiment, specific: the chitosan is carboxymethyl chitosan.
In this embodiment, specific: the nano titanium dioxide dispersion liquid is prepared by mixing nano titanium dioxide and water according to the following ratio of 1:150 proportion.
In this embodiment, specific: the mass fraction of the polyvinyl alcohol emulsion is 65%, and the mass fraction of the polyethylene oxide emulsion is 45%.
In this embodiment, specific: the mass fraction of the sodium polyacrylate emulsion as the raw material in the ink-absorbing coating and the water-absorbing coating is 75%.
In this embodiment, specific: the raw material plasticizer in the ink-absorbing coating, the water-absorbing coating and the permeation-preventing layer is propylene glycol phenyl ether.
The invention also provides a preparation process of the high-ink-absorption high-transfer-rate thermal sublimation transfer paper, which comprises the following steps of:
s1, preparing an anti-permeation layer: mixing polyethylene resin, urea-formaldehyde resin, epoxy resin, plasticizer and nano titanium dioxide dispersion liquid to form a first solution;
s2, preparing an ink-absorbing coating: mixing graphene powder, viscose, chitosan, polyvinyl alcohol emulsion, plasticizer and sodium polyacrylate emulsion to form a second solution;
s3, preparing a water-absorbing coating: mixing starch, polyethylene oxide emulsion, plasticizer and sodium polyacrylate emulsion to form a third solution;
s4, uniformly coating the first solution obtained in the step S1 on the surface of the base layer, after drying treatment, coating the second solution obtained in the step S2, after continuing the drying treatment, coating the third solution obtained in the step S3, and drying treatment to obtain base paper coated with three layers of coatings;
s5, feeding the base paper obtained in the S4 into a state regulating cylinder for treatment, regulating the paper temperature, balancing the paper temperature, performing soft calendering and finishing, and then obtaining the transfer paper meeting the requirements through a horizontal paper winder.
In this embodiment, specific: in the step S1, when the permeation prevention layer is prepared, polyethylene resin, urea resin and epoxy resin are firstly added into a stirring barrel, the stirring speed is 120r/min, the heating temperature is 250 ℃, the heating time is 80min, then plasticizer and nano titanium dioxide dispersion liquid are added, and stirring is continued for 15min, so that a first solution is obtained.
In this embodiment, specific: in the step S2, when the ink-absorbing coating is prepared, graphene powder, viscose, chitosan, polyvinyl alcohol emulsion and sodium polyacrylate emulsion are added into a stirring barrel, the stirring speed is 120r/min, the heating temperature is 250 ℃, the heating time is 80min, then a plasticizer is added, and stirring is continued for 15min, so that a second solution is obtained.
In this embodiment, specific: in the step S3, when the water-absorbing coating is prepared, starch, polyethylene oxide emulsion and sodium polyacrylate emulsion are added into a stirring barrel, the stirring speed is 120r/min, the heating temperature is 250 ℃, the heating time is 80min, then plasticizer is added, and stirring is continued for 15min, so that a third solution is obtained.
When the ink-absorbing coating is used, the graphene powder, the viscose fiber, the chitosan, the polyvinyl alcohol emulsion and the sodium polyacrylate emulsion which are mainly made of porous materials are used for preparing the ink-absorbing coating, so that when the ink falls on the transfer paper, the ink can be completely attached to the transfer paper, the transfer effect is improved, the ink layer is solid and full, the glossiness is high, the product quality is good, meanwhile, the starch, the polyethylene oxide emulsion, the plasticizer and the sodium polyacrylate emulsion are used for preparing the water-absorbing coating, so that water can be suspended on the surface of the transfer paper in the process of thermal sublimation, the water can be quickly evaporated in the process of thermal sublimation, the transfer efficiency is improved, meanwhile, the anti-seepage layer made of a high-density material is matched, the permeation effect of a base layer is improved, the quality of the transfer paper is improved, the yield is improved, and the production efficiency is ensured.
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 therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The high ink absorption high transfer rate thermal sublimation transfer paper is characterized by comprising a base layer, an ink absorption coating, a water absorption coating and an anti-permeation layer;
the anti-seepage layer is coated on the surface of the base layer, the ink-absorbing coating is coated on the surface of the anti-seepage layer after the anti-seepage layer is solidified, and the water-absorbing coating is coated on the surface of the ink-absorbing coating after the ink-absorbing coating is solidified;
the ink-absorbing coating is prepared from the following raw materials in parts by weight: 12-18 parts of graphene powder, 8-15 parts of viscose fiber, 4-8 parts of chitosan, 2-4 parts of polyvinyl alcohol emulsion, 2-4 parts of plasticizer and 3-4 parts of sodium polyacrylate emulsion;
the water-absorbing coating is prepared from the following raw materials in parts by weight: 4-6 parts of starch, 8-15 parts of polyethylene oxide emulsion, 1-2 parts of plasticizer and 5-8 parts of sodium polyacrylate emulsion;
the permeation prevention layer is prepared from the following raw materials in parts by weight: 6-8 parts of polyethylene resin, 3-5 parts of urea-formaldehyde resin, 4-6 parts of epoxy resin, 2-3 parts of plasticizer and 1-6 parts of nano titanium dioxide dispersion liquid;
the chitosan is any one or a mixture of more of creatine chitosan, carboxymethyl chitosan, quaternized chitosan and hydroxypropyl chitosan; the nano titanium dioxide dispersion liquid is prepared by mixing nano titanium dioxide and water according to the following ratio of 1:150-200 proportion; the mass fraction of the polyvinyl alcohol emulsion is 65-70%, and the mass fraction of the polyethylene oxide emulsion is 45-70%; the mass fractions of the raw material sodium polyacrylate emulsion in the ink absorbing coating and the water absorbing coating are 55-80%; the raw material plasticizers in the ink-absorbing coating, the water-absorbing coating and the permeation-preventing layer are any one or a mixture of more of phthalic acid, terephthalic acid, propylene glycol methyl ether, propylene glycol phenyl ether, dodecanol ester and epoxidized soybean oil.
2. A process for preparing the high ink absorption high transfer rate thermal sublimation transfer paper according to claim 1, which is characterized in that: the preparation method of the thermal sublimation transfer paper comprises the following steps of:
s1, preparing an anti-permeation layer: mixing polyethylene resin, urea-formaldehyde resin, epoxy resin, plasticizer and nano titanium dioxide dispersion liquid to form a first solution;
s2, preparing an ink-absorbing coating: mixing graphene powder, viscose, chitosan, polyvinyl alcohol emulsion, plasticizer and sodium polyacrylate emulsion to form a second solution;
s3, preparing a water-absorbing coating: mixing starch, polyethylene oxide emulsion, plasticizer and sodium polyacrylate emulsion to form a third solution;
s4, uniformly coating the first solution obtained in the step S1 on the surface of the base layer, after drying treatment, coating the second solution obtained in the step S2, after continuing the drying treatment, coating the third solution obtained in the step S3, and drying treatment to obtain base paper coated with three layers of coatings;
s5, feeding the base paper obtained in the S4 into a state regulating cylinder for treatment, regulating the paper temperature, balancing the paper temperature, performing soft calendering and finishing, and then obtaining the transfer paper meeting the requirements through a horizontal paper winder.
3. The process for preparing the thermal sublimation transfer paper with high ink absorption and high transfer rate according to claim 2, which is characterized in that: in the step S1, when the permeation prevention layer is prepared, firstly, adding polyethylene resin, urea resin and epoxy resin into a stirring barrel, stirring at the speed of 90-120r/min, heating at the temperature of 200-250 ℃ for 60-80min, then adding plasticizer and nano titanium dioxide dispersion liquid, and continuing stirring for 8-15min to obtain a first solution.
4. The process for preparing the thermal sublimation transfer paper with high ink absorption and high transfer rate according to claim 2, which is characterized in that: in the step S2, when the ink-absorbing coating is prepared, graphene powder, viscose fiber, chitosan, polyvinyl alcohol emulsion and sodium polyacrylate emulsion are added into a stirring barrel, the stirring speed is 90-120r/min, the heating temperature is 200-250 ℃, the heating time is 60-80min, then a plasticizer is added, and stirring is continued for 8-15min, so that a second solution is obtained.
5. The process for preparing the thermal sublimation transfer paper with high ink absorption and high transfer rate according to claim 2, which is characterized in that: in the step S3, when the water-absorbing coating is prepared, starch, polyethylene oxide emulsion and sodium polyacrylate emulsion are added into a stirring barrel, the stirring speed is 90-120r/min, the heating temperature is 200-250 ℃, the heating time is 60-80min, then plasticizer is added, and stirring is continued for 8-15min, so that a third solution is obtained.
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| CN204451575U (en) * | 2014-12-30 | 2015-07-08 | 杭州华大海天科技有限公司 | The digital paper of a kind of tack quick-drying thermal dye sublimation transfer printing |
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Denomination of invention: High ink absorption and high transfer rate heat sublimation transfer paper and its preparation process Effective date of registration: 20231120 Granted publication date: 20230428 Pledgee: Jiangyin branch of Agricultural Bank of China Ltd. Pledgor: Jiangyin Allnice Digital Technology Co.,Ltd. Registration number: Y2023980066149 |
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