CN108360298B - Spherical composite film thermal sublimation transfer printing digital paper - Google Patents

Spherical composite film thermal sublimation transfer printing digital paper Download PDF

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Publication number
CN108360298B
CN108360298B CN201711457003.8A CN201711457003A CN108360298B CN 108360298 B CN108360298 B CN 108360298B CN 201711457003 A CN201711457003 A CN 201711457003A CN 108360298 B CN108360298 B CN 108360298B
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spherical composite
composite film
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resin
mass
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CN108360298A (en
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林贤福
吕德水
陈志春
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HANGZHOU HUADA HAITIAN TECHNOLOGY CO LTD
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Hangzhou Runchang Digital Technology Co ltd
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • 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
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42—Intermediate, backcoat, or covering layers
    • B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
    • 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
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/40—Coatings with pigments characterised by the 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
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/46—Non-macromolecular organic compounds
    • 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
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/52—Cellulose; 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D21H19/826—Paper comprising more than one coating superposed two superposed coatings, the first applied being pigmented and the second applied being non-pigmented

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

The invention relates to the technical field of thermal sublimation transfer printing, and discloses spherical composite film thermal sublimation transfer printing digital paper which sequentially comprises base material paper (1), a spherical composite film (2) and a surface channel layer (3) from bottom to top; the spherical composite membrane (2) is an interpenetrating network spherical composite membrane consisting of hydrophilic network resin and a porous inorganic substance or cyclodextrin or a composition of the porous inorganic substance and the cyclodextrin, and the hydrophilic network resin is an interpenetrating network resin formed by respectively crosslinking an acrylic resin composition and sodium carboxymethylcellulose with cationic polyacrylamide; the spherical composite membrane (2) can expand to trap dye, so that dye molecules and water molecules are separated in multiple layers, and the network density is adjusted to improve the water permeability. The spherical composite film (2) is directly connected with the base paper (1) to realize the rapid drying of the ink. The coating has a two-layer structure, is simple and convenient in production process, can be printed as dry as possible, can quickly absorb ink, has a good transfer effect, and meets the requirements of quick printing and efficient manufacturing.

Description

Spherical composite film thermal sublimation transfer printing digital paper
Technical Field
The invention relates to the technical field of thermal sublimation transfer printing, in particular to spherical composite film thermal sublimation transfer printing digital paper.
Background
The thermal transfer printing technology is a special process of printing contents such as characters, figures and the like on common paper or high-precision printing paper by using thermal printing ink, heating the contents to 180-230 ℃ within a few minutes by using corresponding thermal transfer printing equipment, and transferring image colors on the paper to different materials realistically. The transfer printing digital paper is a carrier of patterns and ink, and the patterns are transferred and printed on different material media when heated to 180-230 ℃, so that dye molecules are basically and completely transferred to the media materials.
The patent application number is 201410849229.2 self-adhesive quick-drying sublimation transfer printing digital paper, discloses a transfer printing digital paper which comprises a substrate paper, a hydrophobic layer, a water absorbing layer, an ink absorbing layer and a net-shaped surface layer from top to bottom in sequence. The transfer printing digital paper is provided with the hydrophobic layer between the water absorbing layer and the base paper, and is used for isolating water molecules in ink from entering base paper fibers, so that the water molecules can only volatilize in one direction through the net-shaped surface layer, and the defect of low drying speed exists.
In addition, the transfer digital paper needs to be provided with a water absorption layer and an ink absorption layer at the same time to realize the ink absorption and water permeation functions. After the ink absorbing layer in the transfer printing digital paper absorbs the dye, the interpenetrating network resin in the ink absorbing layer can be rapidly expanded to 'pocket' the dye, so that the effect of increasing the ink absorbing amount is achieved, but water molecules in the ink can also be 'pocket', and the transmittance of the water molecules is very low. Therefore, the ink absorbing layer in the prior art cannot independently meet the requirement of improving the water permeability while increasing the ink absorbing amount.
Patent application No. 201610737097.3 discloses that the high blotting heat sublimation of dry type promptly rendition digital paper, this digital paper includes substrate paper, the permeable bed that absorbs water, porous string bag layer and surface channel layer, "water channel" has been constructed in the hole between porous string bag layer and the permeable bed that absorbs water, make the hydrone in the ink can get into substrate paper, dry through the desicator, can follow surface channel layer simultaneously again and volatilize, realize two-way volatilization, the realization is printed and is done the effect promptly.
However, the coating of the thermal sublimation transfer digital paper is of a three-layer structure, and the instant drying effect is realized through three-layer coating; because each coating liquid has different properties, the production of coating layer by layer is generally realized by three coating heads, the process is complex, the product quality is influenced, and the energy consumption is high; or the production is realized through two coating heads, wherein one coating head needs two layers of coextrusion coating, and the matching of two coating liquids also has requirements; the requirements for equipment and coating process control are higher, and the coating yield is often influenced.
Disclosure of Invention
Aiming at the defects of complex three-coating structure and coating process and low coating yield in the prior art, the invention provides the spherical composite film thermal sublimation transfer printing digital paper with the two-layer structure, the transfer printing digital paper has the characteristics of drying immediately after printing, quick ink absorption and good transfer printing effect, the coating process is simple and convenient, and the production can be realized only by two coating heads.
In order to solve the technical problem, the invention is solved by the following technical scheme:
the spherical composite film thermal sublimation transfer printing digital paper sequentially comprises base material paper, a spherical composite film and a surface channel layer from bottom to top; the spherical composite membrane is an interpenetrating network spherical composite membrane consisting of hydrophilic network resin and porous inorganic matter or cyclodextrin or a composition of the porous inorganic matter and the cyclodextrin, and the spherical composite membrane comprises the following components in percentage by mass:
11-38% of hydrophilic network resin;
62-89% of a porous inorganic substance or cyclodextrin or a composition of the porous inorganic substance and the cyclodextrin.
Preferably, the hydrophilic network resin is interpenetrating network resin formed by respectively crosslinking the acrylic resin composition and the sodium carboxymethyl cellulose with the cationic polyacrylamide through polyisocyanate.
The spherical composite membrane is an interpenetrating network spherical composite membrane formed by respectively crosslinking an acrylic resin composition, sodium carboxymethyl cellulose and a porous inorganic substance with cationic polyacrylamide through polyisocyanate, or an interpenetrating network spherical composite membrane formed by respectively crosslinking an acrylic resin composition, sodium carboxymethyl cellulose and cyclodextrin with cationic polyacrylamide through polyisocyanate, or an interpenetrating network spherical composite membrane formed by crosslinking a composition of an acrylic resin composition, sodium carboxymethyl cellulose, a porous inorganic substance and cyclodextrin with cationic polyacrylamide through polyisocyanate.
The polyisocyanate is the combination of any one or two of tris (4-isocyanatophenyl) thiophosphate and triphenylmethane triisocyanate and any one of 1,2, 4-benzene triisocyanate, 1,2, 6-benzene triisocyanate and 1,3, 5-benzene triisocyanate.
The cationic polyacrylamide is a combination of polyacrylamide-hydroxyethyl acrylate-methyl acrylate copolymer and polyacrylamide, the cationic reagent used for cationization comprises quaternary ammonium salt and tertiary amine salt, the quaternary ammonium salt is N, N, N-trimethyl-2- (2-methyl-1-oxo-2-propenyl oxy) ethyl ammonium chloride-acrylamide-methyl acrylate copolymer, and the tertiary amine salt is dimethylamino propyl acrylamide hydrochloride-acrylamide-methyl acrylate copolymer.
Preferably, the acrylic resin composition is two or more of acrylate-sodium acrylate-hydroxyethyl acrylate terpolymer, acrylate-acrylic acid-2-sodium methacrylate terpolymer, cellulose-acrylate-hydroxyethyl acrylate terpolymer and sodium polyacrylate.
Acrylic resin composition has hydrophilic end and hydrophobic end simultaneously, and hydrophilic end adsorbs the hole with the hydrone in the ink in, and hydrophobic end promotes the hydrone to transmit substrate paper, and substrate paper and desicator direct contact have guaranteed hydrone rapid draing, do benefit to the printing drying, have shortened dielectric material's drying time, have realized printing and have done the effect promptly to satisfy the preparation demand of rapid draing.
Preferably, the porous inorganic substance is two or more selected from kaolin, montmorillonite, diatomaceous earth, alumina, silica, and calcium carbonate. The porous structure in the porous inorganic substance can provide pores for the hydrophilic network resin, so that the spherical composite membrane can rapidly and fully absorb ink, the ink absorption amount is increased, the transfer printing time is shortened, and the production efficiency is improved.
The cyclodextrin is a hollow cylindrical three-dimensional annular structure with a slight taper, and the hollow structure can be hydrophilicThe water network resin provides pores, so that the spherical composite film can rapidly and fully absorb ink, the ink absorption amount is increased, the drying time is shortened, and the printing production efficiency is improved. In the hollow structure, the larger opening end at the outer side is formed by C2And C3Is composed of secondary hydroxyl groups, the smaller open end being composed of C6The primary hydroxyl group of (a) is hydrophilic, while the inner side forms a hydrophobic region due to shielding by a C-H bond.
The microstructure of the spherical composite membrane is more beneficial to the rapid separation of dye molecules and water. After the ink enters the spherical composite membrane, dye molecules in the ink are mainly 'caught' by the expanded hydrophilic network resin, the dye molecules and water molecules are separated in a multi-layer manner, and meanwhile, the composition and the proportion of the hydrophilic network resin and a porous inorganic substance or cyclodextrin or the composition of the porous inorganic substance and the cyclodextrin are adjusted to improve the water permeability.
Pores are formed between the hydrophilic network resin and the porous inorganic substance or the cyclodextrin or the composition of the porous inorganic substance and the cyclodextrin, so that the spherical composite film has more tiny 'water channels' -micro channels which are directly communicated with the surface channel layer and the substrate paper, water molecules can be volatilized through the surface channel layer, and the water molecules can be quickly volatilized by utilizing a drier which is directly contacted with the substrate paper, so that the drying speed is improved, the drying effect is realized, and the requirement of the existing printing speed of 100-2000 m/h on quick printing can be met.
Preferably, the mass of the spherical composite film per square meter of the base paper is 8.0 to 18.0 g. At the moment, the ink absorption time is short and the drying is rapid; when the mass of the spherical composite film on each square meter of base paper is less than 8.0g, the ink absorption time is prolonged, and the drying speed is slowed; when the mass of the spherical composite film on each square meter of base paper is more than 18.0g, the ink absorption time and the drying speed are both excellent, but the material cost and the production cost are increased.
Preferably, the surface channel layer comprises the following components in percentage by mass:
60-92% of a resin compound;
8-40% of porous silicon dioxide;
wherein the resin compound is two or more of cellulose-sodium carboxymethylcellulose, vinyl alcohol-vinyl acetate copolymer, ethylene-vinyl alcohol-vinyl acetate copolymer, and cellulose-hydroxyethyl cellulose copolymer.
The resin compound of the surface channel layer has hydrophilicity, but the ink absorption speed is relatively slow, the invention adopts porous silicon dioxide to effectively control the pores of the surface channel layer, and simultaneously utilizes different proportions of the silicon dioxide and the resin compound to adjust the pore size of the surface channel layer, thereby effectively improving the ink absorption speed of the surface channel layer.
When the ink is printed at normal temperature, the pores in the surface channel layer can transfer the ink to the spherical composite film, so that the ink absorption speed is high; during the rendition, high temperature (180 ~ 230 ℃) makes intermolecular hydrogen bond fracture in the surface channel layer, and surface channel layer forms more or bigger hole, and the dyestuff molecule in the ink fully sublimates fast from spherical composite film rendition digital paper, and the rendition is efficient, can keep picture and text bright in color to can guarantee that high efficiency transmits the ink to spherical composite film in.
Preferably, the mass of the channel layer on the upper surface of the base paper per square meter is 1.5-3.0 g. At the moment, the surface channel layer has good ink absorption speed under the condition of normal-temperature printing and can transfer ink into the spherical composite film; during transfer printing, intermolecular hydrogen bonds of the surface channel layer are broken at high temperature (180-230 ℃), more or larger pores are formed on the surface channel layer, dye molecules are quickly and fully sublimated from the transfer printing digital paper of the spherical composite film, and the transfer printing effect is ideal.
When the mass of the channel layer on the upper surface of each square meter of base paper is less than 1.5g, the conditions that ink is not dry and patterns are easy to blur in the rolling process can occur when printing dark patterns, and the transfer effect is directly influenced to generate a defective product problem; when the mass of the channel layer on the upper surface of the base paper per square meter is more than 3.0g, the sublimation of dye molecules is influenced by the too thick channel layer, the transfer effect is also poor, and the production cost is directly increased.
Due to the adoption of the technical scheme, the invention has the following remarkable technical effects:
(1) according to the spherical composite film thermal sublimation transfer printing digital paper provided by the invention, the surface channel layer forms pores between the resin composites through the porous silicon dioxide, the ink enters the surface channel layer through the pores, the absorption speed of the ink is improved, the ink is rapidly transferred to the spherical composite film, and dye molecules are effectively separated from water molecules, so that the pattern transferred to the medium material is perfect and vivid, the color is saturated and bright, the image details are clear, and the ink is also saved;
(2) the coating of the spherical composite film thermal sublimation transfer printing digital paper has a simple structure and only two layers, wherein the microstructure of the spherical composite film is more beneficial to the rapid separation of dye molecules and water. The hydrophilic network resin is an interpenetrating network resin formed by respectively crosslinking an acrylic resin composition and sodium carboxymethyl cellulose with cationic polyacrylamide through polyisocyanate. After the spherical composite membrane absorbs ink, on one hand, dye molecules are mainly 'caught up' by the expanded hydrophilic network resin, and the dye molecules and water molecules are separated in a multi-layer manner, so that the beneficial result of increasing the ink absorption amount is achieved; on the other hand, the composition and proportion of the hydrophilic network resin and the porous inorganic substance or the cyclodextrin or the composition of the porous inorganic substance and the cyclodextrin are controlled, the network density of the spherical composite membrane is adjusted to improve the water permeability, water molecules rapidly enter the base material paper, and the beneficial result of obviously increasing the drying speed of the transfer digital paper is achieved.
(3) More 'water channels' -micro channels are constructed between the interpenetrating network spherical composite membrane consisting of the hydrophilic network resin and the porous inorganic substance or the cyclodextrin or the composition of the porous inorganic substance and the cyclodextrin, the micro channels are directly communicated with the surface channel layer and the substrate paper, water molecules can be volatilized through the surface channel layer, water molecules can be quickly volatilized by a drier directly contacting the substrate paper, the two-way volatilization function is realized, the drying speed is improved, the effect of drying immediately after printing is realized, and the requirement of quick printing at the existing printing speed of 100-2000 m/h can be met.
(4) The spherical composite film transfer digital paper has a two-layer structure, the coating production process is simpler and more convenient, the production can be realized by two coating heads, the coating yield is improved, the production cost is reduced, the functions of drying during printing, quick ink absorption, good transfer effect and the like can be realized, and the requirements of quick printing and efficient manufacturing can be met.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the spherical composite membrane of fig. 1.
Fig. 3 is a schematic structural view of the spherical structure in fig. 2.
Fig. 4 is a top view of the spherical structure of fig. 2.
The names of the parts indicated by the numerical references in the drawings are as follows: 1-substrate paper, 2-spherical composite film, 21-spherical structure, 22-resin structure, 23-microchannel, and 3-surface channel layer.
Detailed Description
The following examples are intended to illustrate the invention in further detail, but are not intended to limit the scope of the invention.
Example 1
A transfer digital paper of a spherical composite film is shown in figures 1-4 and sequentially comprises a base material paper 1, a spherical composite film 2 and a surface channel layer 3 from bottom to top, wherein the spherical composite film 2 comprises a spherical structure 21 and a resin structure 22, the spherical structure 21 and the resin structure 22 are compounded to form the spherical composite film 2, and a micro channel 23 is arranged on the spherical structure 21.
The spherical composite membrane 2 is an interpenetrating network composite membrane consisting of hydrophilic network resin and porous inorganic matters, and the spherical composite membrane 2 comprises the following components in percentage by mass:
11% of hydrophilic network resin;
89% of porous inorganic matter;
the hydrophilic network resin is interpenetrating network resin formed by crosslinking 40 mass percent of acrylic resin composition, 32 mass percent of sodium carboxymethyl cellulose and 23 mass percent of cationic polyacrylamide through 5 mass percent of polyisocyanate.
The acrylic resin composition consists of 50 mass percent of acrylate-sodium acrylate-hydroxyethyl acrylate terpolymer and 50 mass percent of acrylate-acrylic acid-2-sodium methacrylate terpolymer.
The polyisocyanate consists of 80 mass percent of thiophosphoric acid tri (4-isocyanate phenyl ester) and 20 mass percent of 1,2, 6-benzene triisocyanate.
The porous inorganic substance is composed of 40% by mass of kaolin and 60% by mass of montmorillonite.
The cationic polyacrylamide comprises 40 mass percent of cationized polyacrylamide homopolymer and 60 mass percent of polyacrylic acid-hydroxyethyl acrylate copolymer, and the cationic reagent used for cationization is N, N, N-trimethyl-2- (2-methyl-1-oxo-2-propenyl oxy) ethyl ammonium chloride-acrylamide copolymer.
The mass of the spherical composite film 2 per square meter of the base paper 1 was 8.0 g.
The surface channel layer 3 comprises the following components in percentage by mass:
92% of a resin compound;
8% of porous silica;
wherein the resin compound consists of 70 mass percent of vinyl alcohol-vinyl acetate copolymer and 30 mass percent of ethylene-vinyl alcohol-vinyl acetate copolymer.
The mass of the surface passage layer 3 per square meter of the base paper 1 was 3.0 g.
After the ink enters the surface channel layer 3, the ink enters the spherical composite film 2 through the pores, and after the spherical composite film 2 absorbs the ink, on one hand, dye molecules are mainly trapped by the expanded hydrophilic network resin, and the spherical composite film 2 separates the dye molecules and water molecules in multiple layers, so that the beneficial result of increasing the ink absorption amount is achieved; on the other hand, the composition and proportion of the hydrophilic network resin and the porous inorganic substance or the cyclodextrin or the composition of the porous inorganic substance and the cyclodextrin are controlled, the network density of the spherical composite film 2 is adjusted to improve the water permeability, water molecules rapidly enter the substrate paper 3, and the beneficial result of obviously increasing the drying speed of the transfer digital paper is achieved.
Meanwhile, more 'water channels' -micro channels 23 are constructed between the interpenetrating network spherical composite film consisting of the hydrophilic network resin and the porous inorganic substance or the cyclodextrin or the composition of the porous inorganic substance and the cyclodextrin, the micro channels 23 are directly communicated with the surface channel layer 3 and the base paper 1, water molecules can be volatilized through the surface channel layer 3, a dryer which is directly contacted with the base paper 1 can be used for quickly volatilizing the water molecules, the drying speed is improved, the effect of drying after printing is realized, and the requirement of the existing printing speed of 100-2000 m/h on quick printing can be met.
Example 2
A transfer digital paper of a spherical composite film is shown in figures 1-4 and sequentially comprises a base material paper 1, a spherical composite film 2 and a surface channel layer 3 from bottom to top, wherein the spherical composite film 2 comprises a spherical structure 21 and a resin structure 22, the spherical structure 21 and the resin structure 22 are compounded to form the spherical composite film 2, and a micro channel 23 is arranged on the spherical structure 21.
The spherical composite membrane 2 is an interpenetrating network composite membrane consisting of hydrophilic network resin and porous inorganic matters, and the spherical composite membrane 2 comprises the following components in percentage by mass:
20% of hydrophilic network resin;
80% of porous inorganic substance;
the hydrophilic network resin is interpenetrating network resin formed by crosslinking 33 mass percent of acrylic resin composition, 40 mass percent of sodium carboxymethyl cellulose and 23 mass percent of cationic polyacrylamide respectively through 4 mass percent of polyisocyanate.
The acrylic resin composition consists of 60 mass percent of acrylate-sodium acrylate-hydroxyethyl acrylate terpolymer and 40 mass percent of cellulose-acrylate-hydroxyethyl acrylate terpolymer.
The polyisocyanate consists of 70 mass percent of thiophosphoric acid tri (4-isocyanate phenyl ester) and 30 mass percent of 1,3, 5-benzene triisocyanate.
The porous inorganic substance is composed of 40% by mass of kaolin and 60% by mass of diatomite.
The cationic polyacrylamide comprises 40 mass percent of cationized polyacrylamide homopolymer and 60 mass percent of polyacrylic acid-hydroxyethyl acrylate copolymer, and the cationic reagent used for cationization is dimethylamino propyl acrylamide hydrochloride-acrylamide copolymer.
The mass of the spherical composite film 2 per square meter of the base paper 1 was 10.0 g.
The surface channel layer 3 comprises the following components in percentage by mass:
75% of a resin compound;
25% of porous silicon dioxide;
wherein the resin compound consists of 50 mass percent of ethylene-vinyl alcohol-vinyl acetate copolymer and 50 mass percent of cellulose-sodium carboxymethyl cellulose.
The mass of the surface channel layer 3 per square meter of the base paper 1 was 2.0 g.
Example 3
A transfer digital paper of a spherical composite film is shown in figures 1-4 and sequentially comprises a base material paper 1, a spherical composite film 2 and a surface channel layer 3 from bottom to top, wherein the spherical composite film 2 comprises a spherical structure 21 and a resin structure 22, the spherical structure 21 and the resin structure 22 are compounded to form the spherical composite film 2, and a micro channel 23 is arranged on the spherical structure 21.
The spherical composite membrane 2 is an interpenetrating network composite membrane consisting of hydrophilic network resin and porous inorganic matters, and the spherical composite membrane 2 comprises the following components in percentage by mass:
25% of hydrophilic network resin;
75% of porous inorganic substance;
the hydrophilic network resin is interpenetrating network resin formed by crosslinking 30 mass percent of acrylic resin composition, 38 mass percent of sodium carboxymethyl cellulose and 25 mass percent of cationic polyacrylamide through 7 mass percent of polyisocyanate.
The acrylic resin composition consists of 20 mass percent of acrylate-sodium acrylate-hydroxyethyl acrylate terpolymer, 40 mass percent of acrylate-acrylic acid-2-sodium methacrylate terpolymer and 40 mass percent of cellulose-acrylate-hydroxyethyl acrylate terpolymer.
The polyisocyanate consists of 60 mass percent of thiophosphoric acid tri (4-isocyanate phenyl ester) and 40 mass percent of 1,2, 4-benzene triisocyanate.
The porous inorganic substance is composed of 35% by mass of kaolin and 65% by mass of alumina.
The cationic polyacrylamide comprises 40 mass percent of cationized polyacrylamide homopolymer and 60 mass percent of polyacrylic acid-hydroxyethyl acrylate copolymer, and the cationic reagent used for cationization is dimethylamino propyl acrylamide hydrochloride-acrylamide copolymer.
The mass of the spherical composite film 2 per square meter of the base paper 1 was 13.0 g.
The surface channel layer 3 comprises the following components in percentage by mass:
60% of a resin compound;
40% of porous silicon dioxide;
wherein the resin compound consists of 45 mass percent of ethylene-vinyl alcohol-vinyl acetate copolymer and 55 mass percent of cellulose-sodium carboxymethyl cellulose.
The mass of the surface channel layer 3 per square meter of the base paper 1 was 2.4 g.
Example 4
A transfer digital paper of a spherical composite film is shown in figures 1-4 and sequentially comprises a base material paper 1, a spherical composite film 2 and a surface channel layer 3 from bottom to top, wherein the spherical composite film 2 comprises a spherical structure 21 and a resin structure 22, the spherical structure 21 and the resin structure 22 are compounded to form the spherical composite film 2, and a micro channel 23 is arranged on the spherical structure 21.
The spherical composite membrane 2 is an interpenetrating network composite membrane consisting of hydrophilic network resin and porous inorganic matters, and the spherical composite membrane 2 comprises the following components in percentage by mass:
11% of hydrophilic network resin;
89% of porous inorganic matter;
the hydrophilic network resin is interpenetrating network resin formed by crosslinking 33 mass percent of acrylic resin composition, 37 mass percent of sodium carboxymethyl cellulose and 25 mass percent of cationic polyacrylamide through 5 mass percent of polyisocyanate.
The acrylic resin composition consists of 20 mass percent of acrylate-sodium acrylate-hydroxyethyl acrylate terpolymer, 40 mass percent of sodium polyacrylate and 40 mass percent of cellulose-acrylate-hydroxyethyl acrylate terpolymer.
The polyisocyanate consists of 30 mass percent of thiophosphoric acid tri (4-isocyanatophenyl ester), 30 mass percent of triphenylmethane triisocyanate and 40 mass percent of 1,3, 5-benzene triisocyanate.
The porous inorganic substance is composed of 40% by mass of diatomite and 60% by mass of calcium carbonate.
The cationic polyacrylamide comprises 40 mass percent of cationized polyacrylamide homopolymer and 60 mass percent of polyacrylic acid-hydroxyethyl acrylate copolymer, and the cationic reagent used for cationization is dimethylamino propyl acrylamide hydrochloride-acrylamide copolymer.
The mass of the spherical composite film 2 per square meter of the base paper 1 was 18.0 g.
The surface channel layer 3 comprises the following components in percentage by mass:
80% of a resin compound;
20% of porous silica;
wherein the resin compound consists of 66 mass percent of vinyl alcohol-vinyl acetate copolymer and 34 mass percent of cellulose-hydroxyethyl cellulose copolymer.
The mass of the surface channel layer 3 per square meter of the base paper 1 was 1.5 g.
Example 5
A transfer digital paper of a spherical composite film is shown in figures 1-4 and sequentially comprises a base material paper 1, a spherical composite film 2 and a surface channel layer 3 from bottom to top, wherein the spherical composite film 2 comprises a spherical structure 21 and a resin structure 22, the spherical structure 21 and the resin structure 22 are compounded to form the spherical composite film 2, and a micro channel 23 is arranged on the spherical structure 21.
The spherical composite membrane 2 is an interpenetrating network composite membrane consisting of hydrophilic network resin and porous inorganic matters, and the spherical composite membrane 2 comprises the following components in percentage by mass:
30% of hydrophilic network resin;
70% of porous inorganic substance;
the hydrophilic network resin is interpenetrating network resin formed by crosslinking 33 mass percent of acrylic resin composition, 40 mass percent of sodium carboxymethyl cellulose and 21 mass percent of cationic polyacrylamide through 6 mass percent of polyisocyanate.
The acrylic resin composition consists of 60 mass percent of sodium polyacrylate and 40 mass percent of acrylate-sodium acrylate-hydroxyethyl acrylate terpolymer.
The polyisocyanate consists of triphenylmethane triisocyanate with the mass percent of 60% and 1,3, 5-benzene triisocyanate with the mass percent of 40%.
The porous inorganic substance is composed of 40 mass percent of kaolin, 25 mass percent of montmorillonite and 35 mass percent of calcium carbonate.
The cationic polyacrylamide comprises 40 mass percent of cationized polyacrylamide homopolymer and 60 mass percent of polyacrylic acid-hydroxyethyl acrylate copolymer, and the cationic reagent used for cationization is N, N, N-trimethyl-2- (2-methyl-1-oxo-2-propenyl oxy) ethyl ammonium chloride-acrylamide copolymer.
The mass of the spherical composite film 2 per square meter of the base paper 1 was 15.0 g.
The surface channel layer 3 comprises the following components in percentage by mass:
65% of a resin compound;
35% of porous silica;
wherein the resin compound consists of 74 percent by mass of ethylene-vinyl alcohol-vinyl acetate copolymer and 26 percent by mass of cellulose-hydroxyethyl cellulose copolymer.
The mass of the surface channel layer 3 per square meter of the base paper 1 was 2.7 g.
Example 6
A transfer digital paper of a spherical composite film is shown in figures 1-4 and sequentially comprises a base material paper 1, a spherical composite film 2 and a surface channel layer 3 from bottom to top, wherein the spherical composite film 2 comprises a spherical structure 21 and a resin structure 22, the spherical structure 21 and the resin structure 22 are compounded to form the spherical composite film 2, and a micro channel 23 is arranged on the spherical structure 21.
The spherical composite membrane 2 is an interpenetrating network composite membrane consisting of hydrophilic network resin and cyclodextrin, and the spherical composite membrane 2 comprises the following components in percentage by mass:
30% of hydrophilic network resin;
70% of cyclodextrin;
the hydrophilic network resin is interpenetrating network resin formed by crosslinking 35 mass percent of acrylic resin composition, 38 mass percent of sodium carboxymethyl cellulose and 20 mass percent of cationic polyacrylamide through 7 mass percent of polyisocyanate.
The acrylic resin composition consists of 60 mass percent of acrylic ester-acrylic acid-2-sodium methacrylate terpolymer and 40 mass percent of cellulose-acrylic ester-hydroxyethyl acrylate terpolymer.
The polyisocyanate consists of 60 mass percent of 1,2, 6-benzene triisocyanate and 40 mass percent of triphenylmethane triisocyanate.
The cationic polyacrylamide comprises 40 mass percent of cationized polyacrylamide homopolymer and 60 mass percent of polyacrylic acid-hydroxyethyl acrylate copolymer, and the cationic reagent used for cationization is N, N, N-trimethyl-2- (2-methyl-1-oxo-2-propenyl oxy) ethyl ammonium chloride-acrylamide copolymer.
The mass of the spherical composite film 2 per square meter of the base paper 1 was 9.5 g.
The surface channel layer 3 comprises the following components in percentage by mass:
72% of a resin compound;
28% of porous silica;
wherein the resin compound consists of 40 mass percent of cellulose-sodium carboxymethyl cellulose and 60 mass percent of cellulose-hydroxyethyl cellulose copolymer.
The mass of the surface channel layer 3 per square meter of the base paper 1 was 1.7 g.
Example 7
A transfer digital paper of a spherical composite film is shown in figures 1-4 and sequentially comprises a base material paper 1, a spherical composite film 2 and a surface channel layer 3 from bottom to top, wherein the spherical composite film 2 comprises a spherical structure 21 and a resin structure 22, the spherical structure 21 and the resin structure 22 are compounded to form the spherical composite film 2, and a micro channel 23 is arranged on the spherical structure 21.
The spherical composite membrane 2 is an interpenetrating network composite membrane consisting of hydrophilic network resin, a composition of a porous inorganic substance and cyclodextrin, and the spherical composite membrane 2 comprises the following components in percentage by mass:
35% of hydrophilic network resin;
65% of the combination of porous inorganic substance and cyclodextrin;
the hydrophilic network resin is interpenetrating network resin formed by crosslinking 35 mass percent of acrylic resin composition, 39 mass percent of sodium carboxymethyl cellulose and 21 mass percent of cationic polyacrylamide through 5 mass percent of polyisocyanate.
The acrylic resin composition consists of 55 mass percent of acrylic ester-acrylic acid-2-sodium methacrylate terpolymer and 45 mass percent of cellulose-acrylic ester-hydroxyethyl acrylate terpolymer.
The polyisocyanate consists of 55 mass percent of triphenylmethane triisocyanate and 45 mass percent of 1,2, 4-benzene triisocyanate.
The composition of the porous inorganic substance and the cyclodextrin consists of 70 mass percent of kaolin and 30 mass percent of cyclodextrin.
The cationic polyacrylamide comprises 40 mass percent of cationized polyacrylamide homopolymer and 60 mass percent of polyacrylic acid-hydroxyethyl acrylate copolymer, and the cationic reagent used for cationization is N, N, N-trimethyl-2- (2-methyl-1-oxo-2-propenyl oxy) ethyl ammonium chloride-acrylamide copolymer.
The mass of the spherical composite film 2 per square meter of the base paper 1 was 12.4 g.
The surface channel layer 3 comprises the following components in percentage by mass:
83% of a resin composite;
17% of porous silica;
wherein the resin compound comprises 35% by mass of ethylene-vinyl alcohol-vinyl acetate copolymer, 35% by mass of cellulose-sodium carboxymethylcellulose and 30% by mass of cellulose-hydroxyethyl cellulose copolymer.
The mass of the surface channel layer 4 per square meter of substrate paper 1 was 1.8 g.
Example 8
A transfer digital paper of a spherical composite film is shown in figures 1-4 and sequentially comprises a base material paper 1, a spherical composite film 2 and a surface channel layer 3 from bottom to top, wherein the spherical composite film 2 comprises a spherical structure 21 and a resin structure 22, the spherical structure 21 and the resin structure 22 are compounded to form the spherical composite film 2, and a micro channel 23 is arranged on the spherical structure 21.
The spherical composite membrane 2 is an interpenetrating network composite membrane consisting of hydrophilic network resin, a composition of a porous inorganic substance and cyclodextrin, and the spherical composite membrane 2 comprises the following components in percentage by mass:
38% of hydrophilic network resin;
62% of the combination of porous inorganic substance and cyclodextrin;
the hydrophilic network resin is interpenetrating network resin formed by crosslinking 35 mass percent of acrylic resin composition, 39 mass percent of sodium carboxymethyl cellulose and 21 mass percent of cationic polyacrylamide through 5 mass percent of polyisocyanate.
The acrylic resin composition consists of 55 mass percent of acrylic ester-acrylic acid-2-sodium methacrylate terpolymer and 45 mass percent of sodium polyacrylate.
The polyisocyanate consists of 30 mass percent of thiophosphoric acid tri (4-isocyanatophenyl ester), 35 mass percent of triphenylmethane triisocyanate and 35 mass percent of 1,2, 4-benzene triisocyanate.
The composition of the porous inorganic substance and the cyclodextrin consists of 25 mass percent of montmorillonite, 40 mass percent of calcium carbonate and 35 mass percent of cyclodextrin.
The cationic polyacrylamide comprises 40 mass percent of cationized polyacrylamide homopolymer and 60 mass percent of polyacrylic acid-hydroxyethyl acrylate copolymer, and the cationic reagent used for cationization is N, N, N-trimethyl-2- (2-methyl-1-oxo-2-propenyl oxy) ethyl ammonium chloride-acrylamide copolymer.
The mass of the spherical composite film 2 per square meter of the base paper 1 was 15.8 g.
The surface channel layer 3 comprises the following components in percentage by mass:
92% of a resin compound;
8% of porous silica;
wherein the resin compound consists of 80 mass percent of vinyl alcohol-vinyl acetate copolymer and 20 mass percent of cellulose-sodium carboxymethyl cellulose.
The mass of the surface channel layer 4 per square meter of substrate paper 1 was 2.8 g.
Example 9
A transfer digital paper of a spherical composite film is shown in figures 1-4 and sequentially comprises a base material paper 1, a spherical composite film 2 and a surface channel layer 3 from bottom to top, wherein the spherical composite film 2 comprises a spherical structure 21 and a resin structure 22, the spherical structure 21 and the resin structure 22 are compounded to form the spherical composite film 2, and a micro channel 23 is arranged on the spherical structure 21.
The spherical composite membrane 2 is an interpenetrating network composite membrane consisting of hydrophilic network resin, a composition of a porous inorganic substance and cyclodextrin, and the spherical composite membrane 2 comprises the following components in percentage by mass:
11% of hydrophilic network resin;
89% of the combination of porous inorganic substance and cyclodextrin;
the hydrophilic network resin is interpenetrating network resin formed by crosslinking 37 mass percent of acrylic resin composition, 36 mass percent of sodium carboxymethyl cellulose and 19 mass percent of cationic polyacrylamide through 8 mass percent of polyisocyanate.
The acrylic resin composition consists of 35 mass percent of acrylate-acrylic acid-2-sodium methacrylate terpolymer, 20 mass percent of acrylate-acrylic acid-hydroxyethyl acrylate terpolymer and 45 mass percent of cellulose-acrylate-hydroxyethyl acrylate terpolymer.
The polyisocyanate consists of 40 mass percent of thiophosphoric acid tri (4-isocyanatophenyl ester), 35 mass percent of triphenylmethane triisocyanate and 25 mass percent of 1,2, 6-benzene triisocyanate.
The composition of the porous inorganic substance and the cyclodextrin consists of 20 mass percent of alumina, 30 mass percent of silicon oxide and 50 mass percent of cyclodextrin.
The cationic polyacrylamide comprises 40 mass percent of cationized polyacrylamide homopolymer and 60 mass percent of polyacrylic acid-hydroxyethyl acrylate copolymer, and the cationic reagent used for cationization is N, N, N-trimethyl-2- (2-methyl-1-oxo-2-propenyl oxy) ethyl ammonium chloride-acrylamide copolymer.
The mass of the spherical composite film 2 per square meter of the base paper 1 was 17.9 g.
The surface channel layer 3 comprises the following components in percentage by mass:
60% of a resin compound;
40% of porous silicon dioxide;
wherein the resin compound consists of 50 mass percent of cellulose-sodium carboxymethyl cellulose and 50 mass percent of cellulose-hydroxyethyl cellulose copolymer.
The mass of the surface channel layer 4 per square meter of substrate paper 1 was 2.3 g.
Example 10
A transfer digital paper of a spherical composite film is shown in figures 1-4 and sequentially comprises a base material paper 1, a spherical composite film 2 and a surface channel layer 3 from bottom to top, wherein the spherical composite film 2 comprises a spherical structure 21 and a resin structure 22, the spherical structure 21 and the resin structure 22 are compounded to form the spherical composite film 2, and a micro channel 23 is arranged on the spherical structure 21.
The spherical composite membrane 2 is an interpenetrating network composite membrane consisting of hydrophilic network resin, a composition of a porous inorganic substance and cyclodextrin, and the spherical composite membrane 2 comprises the following components in percentage by mass:
38% of hydrophilic network resin;
62% of the combination of porous inorganic substance and cyclodextrin;
the hydrophilic network resin is interpenetrating network resin formed by crosslinking 39 mass percent of acrylic resin composition, 34 mass percent of sodium carboxymethyl cellulose and 21 mass percent of cationic polyacrylamide through 6 mass percent of polyisocyanate.
The acrylic resin composition consists of 25 mass percent of acrylate-acrylic acid-2-sodium methacrylate terpolymer, 30 mass percent of cellulose-acrylic acid-hydroxyethyl acrylate terpolymer and 45 mass percent of sodium polyacrylate.
The polyisocyanate consists of 45 mass percent of thiophosphoric acid tri (4-isocyanate phenyl ester) and 55 mass percent of 1,3, 5-benzene triisocyanate.
The composition of the porous inorganic substance and the cyclodextrin comprises 30 mass percent of diatomite, 30 mass percent of montmorillonite and 40 mass percent of cyclodextrin.
The cationic polyacrylamide comprises 40 mass percent of cationized polyacrylamide homopolymer and 60 mass percent of polyacrylic acid-hydroxyethyl acrylate copolymer, and the cationic reagent used for cationization is dimethylamino propyl acrylamide hydrochloride-acrylamide copolymer.
The mass of the spherical composite film 2 per square meter of the base paper 1 was 8.8 g.
The surface channel layer 3 comprises the following components in percentage by mass:
71% of a resin compound;
29% of porous silica;
wherein the resin compound comprises 30 mass percent of vinyl alcohol-vinyl acetate copolymer, 25 mass percent of cellulose-sodium carboxymethyl cellulose, 20 mass percent of cellulose-hydroxyethyl cellulose copolymer and 25 mass percent of ethylene-vinyl alcohol-vinyl acetate copolymer.
The mass of the surface channel layer 4 per square meter of substrate paper 1 was 2.7 g.
Example 11
A transfer digital paper of a spherical composite film is shown in figures 1-4 and sequentially comprises a base material paper 1, a spherical composite film 2 and a surface channel layer 3 from bottom to top, wherein the spherical composite film 2 comprises a spherical structure 21 and a resin structure 22, the spherical structure 21 and the resin structure 22 are compounded to form the spherical composite film 2, and a micro channel 23 is arranged on the spherical structure 21.
The spherical composite membrane 2 is an interpenetrating network composite membrane consisting of hydrophilic network resin, a composition of a porous inorganic substance and cyclodextrin, and the spherical composite membrane 2 comprises the following components in percentage by mass:
38% of hydrophilic network resin;
62% of the combination of porous inorganic substance and cyclodextrin;
the hydrophilic network resin is interpenetrating network resin formed by crosslinking 45 mass percent of acrylic resin composition, 34 mass percent of sodium carboxymethyl cellulose and 18 mass percent of cationic polyacrylamide through 3 mass percent of polyisocyanate.
The acrylic resin composition consists of 15 mass percent of acrylate-acrylic acid-2-sodium methacrylate terpolymer, 20 mass percent of acrylate-acrylic acid-hydroxyethyl acrylate terpolymer, 25 mass percent of sodium polyacrylate and 40 mass percent of cellulose-acrylate-hydroxyethyl acrylate terpolymer.
The polyisocyanate consists of 65 mass percent of triphenylmethane triisocyanate and 35 mass percent of 1,3, 5-benzene triisocyanate.
The composition of the porous inorganic substance and the cyclodextrin comprises 10 mass percent of kaolin, 20 mass percent of montmorillonite, 10 mass percent of diatomite, 30 mass percent of alumina, 10 mass percent of silicon oxide, 10 mass percent of calcium carbonate and 10 mass percent of cyclodextrin.
The cationic polyacrylamide comprises 40 mass percent of cationized polyacrylamide homopolymer and 60 mass percent of polyacrylic acid-hydroxyethyl acrylate copolymer, and the cationic reagent used for cationization is dimethylamino propyl acrylamide hydrochloride-acrylamide copolymer.
The mass of the spherical composite film 2 per square meter of the base paper 1 was 8.8 g.
The surface channel layer 3 comprises the following components in percentage by mass:
90% of a resin compound;
10% of porous silica;
wherein the resin compound consists of 40 mass percent of ethylene-vinyl alcohol-vinyl acetate copolymer, 20 mass percent of vinyl alcohol-vinyl acetate copolymer and 40 mass percent of cellulose-hydroxyethyl cellulose copolymer.
The mass of the surface channel layer 4 per square meter of substrate paper 1 was 2.5 g.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.

Claims (7)

1. Spherical composite film thermal sublimation rendition digital paper, its characterized in that: the composite paper comprises base paper (1), a spherical composite film (2) and a surface channel layer (3) from bottom to top in sequence; the spherical composite membrane (2) is an interpenetrating network spherical composite membrane consisting of hydrophilic network resin and porous inorganic matter or cyclodextrin or a composition of the porous inorganic matter and the cyclodextrin, and the components and the content of the spherical composite membrane (2) are respectively as follows according to the mass percentage:
11-38% of hydrophilic network resin;
62-89% of a porous inorganic substance or cyclodextrin or a composition of the porous inorganic substance and the cyclodextrin, wherein the hydrophilic network resin is interpenetrating network resin formed by respectively crosslinking an acrylic resin composition, sodium carboxymethyl cellulose and cationic polyacrylamide through polyisocyanate.
2. The spherical composite film thermal sublimation transfer digital paper according to claim 1, wherein: the acrylic resin composition is two or more of acrylate-sodium acrylate-hydroxyethyl acrylate terpolymer, acrylate-acrylic acid-2-sodium methacrylate terpolymer, cellulose-acrylate-hydroxyethyl acrylate terpolymer and sodium polyacrylate.
3. The spherical composite film thermal sublimation transfer digital paper according to claim 1 or 2, characterized in that: the polyisocyanate is the combination of any one or two of tris (4-isocyanatophenyl) thiophosphate and triphenylmethane triisocyanate and any one of 1,2, 4-benzene triisocyanate, 1,2, 6-benzene triisocyanate and 1,3, 5-benzene triisocyanate.
4. The spherical composite film thermal sublimation transfer digital paper according to claim 1, wherein: the porous inorganic substance is two or more of kaolin, montmorillonite, diatomite, alumina, silicon oxide and calcium carbonate.
5. The spherical composite film thermal sublimation transfer digital paper according to claim 1, wherein: the mass of the spherical composite film (2) on each square meter of base paper (1) is 8.0-18.0 g.
6. The spherical composite film thermal sublimation transfer digital paper according to claim 1, wherein: the surface channel layer (3) comprises the following components in percentage by mass:
60-92% of a resin compound;
8-40% of porous silicon dioxide;
wherein the resin compound is two or more of cellulose-sodium carboxymethylcellulose, ethylene-vinyl alcohol-vinyl acetate copolymer, and cellulose-hydroxyethyl cellulose.
7. The spherical composite film thermal sublimation transfer digital paper according to claim 1, wherein: the mass of the channel layer (3) on the upper surface of the base paper (1) per square meter is 1.5-3.0 g.
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EP2979890A1 (en) * 2013-03-29 2016-02-03 Dai Nippon Printing Co., Ltd. Protective layer transfer sheet and intermediate transfer medium
CN106364205A (en) * 2016-08-28 2017-02-01 杭州润畅数码科技有限公司 Instant dry type heat sublimation transfer digital paper
CN106394050A (en) * 2016-08-28 2017-02-15 杭州华大海天科技有限公司 Instant-drying type thermal sublimation transfer printing digital PET film

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Publication number Priority date Publication date Assignee Title
EP2979890A1 (en) * 2013-03-29 2016-02-03 Dai Nippon Printing Co., Ltd. Protective layer transfer sheet and intermediate transfer medium
CN106364205A (en) * 2016-08-28 2017-02-01 杭州润畅数码科技有限公司 Instant dry type heat sublimation transfer digital paper
CN106394050A (en) * 2016-08-28 2017-02-15 杭州华大海天科技有限公司 Instant-drying type thermal sublimation transfer printing digital PET film

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