CN112829449A - Strong migration type transfer printing printed matter - Google Patents
Strong migration type transfer printing printed matter Download PDFInfo
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- CN112829449A CN112829449A CN202110103822.2A CN202110103822A CN112829449A CN 112829449 A CN112829449 A CN 112829449A CN 202110103822 A CN202110103822 A CN 202110103822A CN 112829449 A CN112829449 A CN 112829449A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/02—Transfer printing apparatus for textile material
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/08—Cellulose derivatives
- C09D101/26—Cellulose ethers
- C09D101/28—Alkyl ethers
- C09D101/286—Alkyl ethers substituted with acid radicals
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D103/00—Coating compositions based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09D103/02—Starch; Degradation products thereof, e.g. dextrin
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
- C09D171/02—Polyalkylene oxides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Abstract
The invention relates to a strong migration type transfer printing printed object, which comprises a support body, and a protective layer, a receiving and accommodating layer and an ink migration layer which are sequentially arranged on the support body. According to the invention, the multidimensional particle stacking structure coating is constructed on the surface of the support body, so that the Z-direction (longitudinal) migration and XY-direction (transverse) spreading of the water-based dispersed ink on the fabric cloth in a directional manner in a transfer printing process can be obviously promoted, and the series problems of whitening (yarn turning) after reverse rubbing of the elastic/sports outdoor fabric and the fabric cloth with higher tightness and gram weight, easy exposure of unprinted white bottom after stretching, large front-back color difference and the like are solved.
Description
Technical Field
The invention relates to a strong-migration type transfer printing printed matter, and belongs to the technical field of transfer printing.
Background
The thermal sublimation transfer printing technology is a dry printing process without liquid phase medium, which prints the pictures and texts on the printed matter (usually thermal transfer printing paper) by the way of ink-jet printing, screen printing, gravure printing and the like with water-based dispersion printing ink with thermal sublimation characteristic, then the printed matter printed with pictures and texts is attached to the fabric cloth, the water-based dispersion printing ink is sublimated to be converted into gas state under the condition of hot pressing, and the gas state is transferred to the polyester fabric cloth. Compared with the traditional textile printing, the thermal sublimation transfer printing technology has the advantages of energy and water conservation (no need of post-treatment such as steaming, washing and the like), small pollution, individuality diversification, fine patterns, clear layers and the like. At present, the thermal sublimation transfer printing process is listed in a clean production technology guide catalog (first batch) 45 of China's national committee for trade and trade, the application prospect is very optimistic, according to statistics, the yield of the thermal sublimation transfer printing paper in the country in 2018 reaches about 19 ten thousand tons, and the total energy in 2019 is improved to about 22 ten thousand tons.
However, two major bottleneck problems exist which restrict the application of the thermal sublimation transfer printing technology in the field of textile printing: 1) in the thermal sublimation transfer printing stage, because most of pigments in the water-based dispersed ink only migrate to the upper surface layer (transversely spread and form an ink layer) of the fabric cloth, the fabric cloth (such as elastic/sports outdoor fabric and fabric containing draw frame polyester fiber) is easy to whiten (turn over) after being rubbed reversely, and white bottom/needle eye lines which are not printed inside are easy to expose after being stretched; 2) the fabric printed by thermal sublimation transfer printing has different colors of the front side and the back side, and particularly the fabric with higher tightness and gram weight has larger color difference of the front side and the back side.
The currently known technology mainly adopts two ways of introducing functional compounds or designing a migration-aid coating and improving ink to solve the bottleneck problem. The inventor of the present application has developed a paper base or a film base as an intermediate transfer medium, and adds one or more functional compounds in the basic coating formulation, or coats a migration-aid functional coating on the surface of the intermediate transfer medium. However, although the technology can solve the problems of exposed ground color, yarn turning, large front-back color difference and the like of the conventional fabric cloth after transfer printing, when the coating weight of the transfer-assisted coating is large or the functional compound accounts for a large amount in the coating composition, a small part of ink seeps into the interior of paper (namely, is absorbed by the base paper), so that the treatment effect on the elastic/sports outdoor fabric and the fabric with high tightness and gram weight is weakened.
Patent CN109487578A discloses a preparation process of high-permeability sublimation ink, which selects sublimation disperse dye with low molecular weight, and uses sodium o-phenylphenol as disperse dye carrier capable of plasticizing fiber and reducing intermolecular force of fiber, so that the disperse dye is easy to enter into fabric fiber during transfer printing. However, the ink has a relatively remarkable effect on a relatively thin fabric, but has a poor effect on a relatively thick fabric, and the price of the ink is relatively high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a strong migration type transfer printing printed matter, and the invention can obviously promote the water-based dispersed ink to be oriented on the fabric cloth to finish Z-direction (longitudinal) migration and XY-direction (transverse) spreading in the transfer printing process by constructing a multi-dimensional particle stacking structure coating on the surface of a support body, thereby solving the series problems of whitening (yarn turning) after reverse rubbing of an elastic/motion outdoor fabric and the fabric cloth with higher tightness and gram weight, easy exposure of unprinted white background after stretching, large front-back color difference and the like.
In order to achieve the purpose, the invention adopts the technical scheme that: a strong migration type transfer printing object comprises a support, and a protective layer, a receiving layer and an ink migration layer which are sequentially arranged on the support,
the coating composition of the protective layer comprises the following components in parts by weight: 30-80 parts of inorganic pigment and filler, 5-40 parts of bio-based adhesive, 1-15 parts of modifier and 5-20 parts of additive,
the coating composition for receiving the accommodating layer comprises the following components in parts by weight: 20-60 parts of cellulose ether, 30-60 parts of starch and 5-20 parts of additive,
the coating composition of the ink migration layer comprises the following components in parts by weight: 30-80 parts of permeation/dialysis assisting compound, 20-60 parts of sodium carboxymethyl cellulose and 1-20 parts of additive.
The invention constructs a protective layer capable of regulating and controlling water-based dispersed ink permeation and capillary dialysis, a receiving and accommodating layer for receiving and absorbing solvent water in the water-based dispersed ink and an ink migration layer containing a permeation-assisting/dialysis type compound on the surface of a support. The support of the coating laminated body is used as a printing object to be subjected to ink-jet printing, then the printing object is attached to a fabric, and the permeation-assisting/dialysis-type compound can effectively induce more ink pigment particles to be oriented into a liquid layer formed by melting the fabric under a hot-pressing environment, so that Z-direction migration and XY-direction spreading of the fabric are realized.
The water-based dispersion ink is not particularly limited in type, and a commercially available or self-made product of the public can be used.
The hot pressing environment is not particularly limited as long as the conditions for closely adhering the fabric cloth and the object to be printed and transferring the ink from the object to be printed to the fabric cloth can be achieved.
In a preferred embodiment of the object to be printed according to the present invention, the support is a 3D mesh structure formed by interweaving natural fibers, and the support is a low-openness thermal sublimation transfer base paper having a basis weight of 40 to 80g/m2The tightness is 0.7 to 1.1g/m3The air permeability is 250-400 mL/min, and the transverse expansion rate is less than or equal to 2.0%.
In a preferred embodiment of the printed matter of the present invention, the coating amount of the protective layer is 2 to 10g/m in terms of dry solid content per one surface2The coating amount of the receiving and accommodating layer is 2-10 g/m in terms of dry solid component per single surface2Application of the ink transfer layerThe amount of the solid component is 6-15 g/m2。
Preferably, the coating amount of the protective layer is 3-6 g/m in terms of dry solid component amount per single surface2The coating amount of the receiving and accommodating layer is 3-8 g/m in terms of dry solid component per single surface2The coating weight of the ink migration layer is 8-12 g/m in terms of dry solid component per single surface2。
As a preferred embodiment of the printed matter of the present invention, the coating composition of the protective layer comprises the following components in parts by weight: 50-70 parts of inorganic pigment and filler, 10-30 parts of bio-based adhesive, 5-15 parts of modifier and 10-20 parts of additive.
In a preferred embodiment of the object to be printed, the inorganic pigment and filler in the protective layer is at least one of china clay, light calcium carbonate, precipitated calcium carbonate, aluminum silicate and talc, the bio-based adhesive is at least one of partially alcoholyzed polyvinyl alcohol, fully alcoholyzed polyvinyl alcohol, carboxyl modified polyvinyl alcohol, hydrophobically modified starch and hydroxypropyl modified cellulose, the modifier is at least one of saturated aldehyde, unsaturated aldehyde, melamine formaldehyde resin, polyamide-epichlorohydrin and boric acid, and the additive is at least one of wax emulsion, styrene-butadiene latex, olefin copolymer emulsion, thickener, lubricant and preservative.
Preferably, the wax emulsion is a BYK wax emulsion.
As a preferred embodiment of the printed matter of the present invention, the coating composition of the receiving layer comprises the following components in parts by weight: 30-50 parts of cellulose ether, 40-60 parts of starch and 10-20 parts of additive.
In a preferred embodiment of the print receiving layer of the present invention, the cellulose ether is at least one of sodium carboxymethylcellulose, cross-linked carboxymethylcellulose, methylcellulose, and hydroxypropylmethylcellulose, the starch is at least one of potato starch, corn starch, tapioca starch, and modified starch, and the additive is at least one of a flow improver, an acrylate emulsion, a polyurethane emulsion, silica, an antifoaming agent, and an antiseptic.
As a preferred embodiment of the printed matter of the present invention, the coating composition of the ink migration layer comprises the following components in parts by weight: 50-70 parts of permeation/dialysis assisting compound, 30-50 parts of sodium carboxymethyl cellulose and 10-20 parts of additive.
In a preferred embodiment of the object to be printed according to the present invention, the permeation-assisting/dialysis-assisting compound in the ink transfer layer is at least one of industrial white sugar, edible white sugar, xylitol, peregal, sodium diisooctyl sulfosuccinate, sodium di-sec-octyl maleate sulfonate, alkylphenol ethoxylate, a condensate of fatty alcohol and ethylene oxide, and fatty alcohol polyoxypropylene ether, and the additive is at least one of a wetting agent, a cationic fixing agent, an antifoaming agent, precipitated silica, fumed silica, and a preservative.
In a preferred embodiment of the object to be printed according to the present invention, the protective layer, the receiving layer, and the ink transfer layer are coated on the inside or outside of the printing apparatus by a doctor blade, an air knife, or a curtain coating method.
Compared with the prior art, the invention has the beneficial effects that:
(1) the raw materials are cheap and easy to obtain, and the production operation is simple and convenient. Most raw materials related by the technology are common chemical materials of pulp mills and printing and dyeing mills, and are low in price and easy to obtain; when preparing the strong-mobility water-based disperse dye transfer printing printed matter, the coating equipment such as a conventional scraper (a scraping bar), an air knife, curtain coating and the like is adopted, the existing equipment is not required to be newly arranged and designed, and the operation is relatively simple and convenient.
(2) Can obviously reduce the fabric white exposure, yarn turning and front and back color difference. According to the technology, the protective layer, the laminated body for receiving the accommodating layer and the ink migration layer are constructed on the surface of the support body, so that the longitudinal migration and the transverse spreading of the water-based dispersed ink on fabric cloth in a directional mode in a transfer printing process can be effectively regulated and controlled, and the series of problems that the elastic/sports outdoor fabric and the fabric cloth with higher tightness and gram weight are easy to turn over, the bottom color is exposed, the color difference between the front side and the back side is large and the like after being scraped/stretched are solved more effectively.
(3) The printing processing cost is reduced, the environmental load is low, and the requirements of green and environment-friendly production are met. In order to solve the problems of white color exposure, large front-back color difference and the like of fabric (such as polyethylene terephthalate fiber cloth) dyeing, a printing and dyeing mill usually adopts a small molecular dye with synchronous coloring, a temperature rise rate regulation and control method, a high-temperature carrier consumption increasing method, a preimpregnation treatment method and the like, and a strong-mobility water-based disperse dye transfer printing printed object produced by adopting the technology can partially replace the related processes of the printing and dyeing mill, so that the total cost of printing and processing is reduced, the drainage load is reduced, and the requirements of current green and environment-friendly production are better met.
Drawings
FIG. 1 is a schematic structural diagram of a strong migration type transfer printing printed matter of the invention, wherein, 1, a support body; 2. a protective layer; 3. a receiving layer; 4. an ink migration layer; 5. a permeation/dialysis aid type compound; 6. and a solid phase dispersion ink layer.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples.
The schematic structure of the strong migration type transfer printing printed matter is shown in figure 1. The printed matter structure for the transfer printing of the water-based dispersion ink with strong migration comprises: the thermal transfer base paper is used as a support body 1; a protective layer 2 which is arranged on the support body and can regulate and control the permeation and capillary dialysis of the water-based dispersed ink; a receiving layer 3 provided on the protective layer and capable of receiving and absorbing water as a solvent in the water-based dispersion ink; the top layer is an ink transfer layer 4 containing a permeation/permeation assisting type compound (No. 5).
The pattern is printed on the printed object containing the coating laminated body through ink-jet printing, screen printing, gravure printing and other modes, then the printed object printed with the pattern is attached to a fabric cloth to be transferred, and is pressed through a thermal transfer printing device, the permeation-assisting/dialysis-type polymer 5 can effectively induce more ink pigment particles to enter a liquid layer formed by melting the fabric in an oriented mode, so that the water-based dispersion ink can be obviously improved to be oriented on the fabric cloth in the transfer printing process to finish Z-direction (longitudinal) migration and XY-direction (transverse) spreading, and therefore the series problems that the elastic/motion outdoor fabric and the fabric cloth with higher tightness and gram weight are whitened (turned over) after being reversely rubbed, unprinted white bottom is easy to expose after being stretched, large in positive and negative surface color difference and the like are solved.
Example 1
The strong migration type transfer printing object comprises a support, and a protective layer, a receiving and accommodating layer and an ink migration layer which are sequentially arranged on the support, wherein the preparation method comprises the following steps:
the method comprises the following steps: adopts a self-made 50g/m2The tightness degree is 0.7g/m3The thermal sublimation base paper with the air permeability of 250mL/min and the transverse expansion rate of less than or equal to 2.0 percent is used as a coating support body, a protective layer is coated on the surface of the thermal sublimation base paper by adopting an air knife coating mode, and the coating comprises the following components in percentage by mass: 60 parts of precipitated calcium carbonate, 25 parts of polyvinyl alcohol with a complete alcoholysis degree, 10 parts of glyoxal, 5 parts of olefin copolymer emulsion, 0.2 part of preservative, 30 percent of solid content of coating, and the coating weight is 4g/m in terms of dry solid component per single side2。
Step two: coating a receiving layer on the surface of a support containing a protective layer by adopting an air knife coating mode, wherein the coating formula comprises the following components in percentage by mass: 40 parts of sodium carboxymethylcellulose, 50 parts of corn starch, 5 parts of polyurethane emulsion, 5 parts of silicon dioxide, and 20% of solid content of coating, wherein the coating weight is 6g/m of dry solid content per single surface2。
Step three: coating an ink migration layer on the surface of a support body containing a receiving layer and a protective layer by adopting a curtain coating mode, wherein the coating formula comprises the following components in percentage by mass: 50 parts of condensation compound of fatty alcohol and ethylene oxide, 40 parts of sodium carboxymethylcellulose, 5 parts of cationic color fixing agent, 10 parts of precipitated silicon dioxide, 0.5 part of defoaming agent, the solid content of the coating is 25%, and the coating weight is 10g/m of dry solid content per side2And drying by a hot air drying cylinder to obtain the water-based disperse dye transfer printing printed matter with strong migration.
Step four: the print was printed with a CMYK evaluation pattern based on sublimation ink using an eprinogen inkjet printer equipped with a low-density (2.5%) sublimation water-based dispersion ink.
Step five: selecting the elastic polyester fabric fiber fabric with a tensile frame (the gram weight is 151 g/m)2) The pattern surface of the object to be printed and the fabric fiber fabric were bonded together by hot pressing using a thermal transfer pyrograph machine at 220 ℃ for 20 seconds. And (3) after transfer printing, detecting and calculating the reverse osmosis promotion rate (the reverse ink light color density of the back side of the printed matter/the reverse ink light color density after the first transfer printing in the comparative example, the reverse osmosis promotion rate is high and represents that the quantity of the ink transferred to the back side of the fabric is large, and the color difference of the front side and the back side is small) by using a spectral densitometer, and evaluating the white and white bottom exposure condition of the fabric after reverse rubbing by cutting by a visual observation method.
Example 2
The strong migration type transfer printing object comprises a support, and a protective layer, a receiving and accommodating layer and an ink migration layer which are sequentially arranged on the support, wherein the preparation method comprises the following steps:
the method comprises the following steps: the same as in example 1.
Step two: coating a receiving layer on the surface of a support body containing a protective layer by adopting a bar coating mode, wherein the coating formula comprises the following components in percentage by mass: 30 parts of cross-linked sodium carboxymethylcellulose, 60 parts of potato starch, 10 parts of polyurethane emulsion, 0.2 part of defoaming agent, and 23% of solid content of coating, wherein the coating amount is 5g/m of dry solid content per side2。
Step three: coating an ink migration layer on the surface of a support body containing a receiving layer and a protective layer by adopting a curtain coating mode, wherein the coating formula comprises the following components in percentage by mass: 50 parts of alkylphenol polyoxyethylene, 40 parts of sodium carboxymethylcellulose, 5 parts of cationic color fixing agent, 10 parts of precipitated silicon dioxide, 0.5 part of defoaming agent, wherein the solid content of the coating is 25%, and the coating weight is 9g/m of each single-side dry solid component2And drying by a hot air drying cylinder to obtain the water-based disperse dye transfer printing printed matter with strong migration.
The fourth and fifth steps are the same as example 1.
Example 3
The strong migration type transfer printing object comprises a support, and a protective layer, a receiving and accommodating layer and an ink migration layer which are sequentially arranged on the support, wherein the preparation method comprises the following steps:
the method comprises the following steps: adopts a homemade 65g/m2The tightness is 1.1g/m3The thermal sublimation base paper with the air permeability of 400mL/min and the transverse expansion rate of less than or equal to 2.0 percent is used as a coating support body, a protective layer is coated on the surface of the thermal sublimation base paper by adopting an air knife coating mode, and the coating comprises the following components in percentage by mass: 70 parts of porcelain clay, 20 parts of polyvinyl alcohol with partial alcoholysis degree, 10 parts of glyoxal, 10 parts of preservative, 25% of solid content of coating, and coating weight of 5g/m in terms of dry solid component per single surface2。
The second, third and fourth steps are the same as in example 1.
Step five: pure polyester fabric fiber fabric (gram weight 186 g/m) is selected2) The pattern surface of the object to be printed and the fabric fiber fabric were bonded together by hot pressing using a thermal transfer pyrograph machine at 220 ℃ for 20 seconds. And detecting and calculating the reverse osmosis lifting rate by using a spectral densitometer after transfer printing, and evaluating the whitening of the fabric after reverse rubbing and white bottom exposure after stretching by using a visual observation method.
Example 4
The strong migration type transfer printing object comprises a support, and a protective layer, a receiving and accommodating layer and an ink migration layer which are sequentially arranged on the support, wherein the preparation method comprises the following steps:
the first and second steps are the same as those of example 2.
Step three: coating an ink migration layer on the surface of a support body containing a receiving layer and a protective layer by adopting a bar coating mode, wherein the coating comprises the following components in percentage by mass: 70 parts of diisooctyl sulfosuccinate sodium, 20 parts of sodium carboxymethylcellulose, 5 parts of cationic color fixing agent, 5 parts of precipitated silicon dioxide, 0.3 part of defoaming agent, wherein the solid content of the coating is 25%, and the coating weight is 8g/m of dry solid content per single side2And drying by a hot air drying cylinder to obtain the water-based disperse dye transfer printing printed matter with strong migration.
Step four: the print was printed with a CMYK evaluation pattern based on sublimation ink using an eprinogen inkjet printer equipped with a medium-density (5%) sublimation water-based dispersion ink.
Step (ii) ofFifthly: selecting the elastic polyester fabric fiber fabric with a tensile frame (the gram weight is 151 g/m)2) The pattern surface of the object to be printed and the fabric fiber fabric were bonded together by hot pressing using a thermal transfer pyrograph machine at 220 ℃ for 20 seconds. And (3) after transfer printing, detecting and calculating the reverse osmosis promotion rate (the reverse ink light color density of the back side of the printed matter/the reverse ink light color density after second transfer printing, wherein the high reverse osmosis promotion rate represents that the quantity of the ink transferred to the back side of the fabric is large, and the color difference of the front side and the back side is small) by using a spectral densitometer, and evaluating the white and white bottom exposure condition of the fabric after reverse rubbing by cutting by a visual observation method.
Example 5
The strong migration type transfer printing object comprises a support, and a protective layer, a receiving and accommodating layer and an ink migration layer which are sequentially arranged on the support, wherein the preparation method comprises the following steps:
the method comprises the following steps: adopts a homemade 65g/m2The tightness degree is 0.9g/m3The thermal sublimation base paper with the air permeability of 380mL/min and the transverse expansion rate of less than or equal to 2.0 percent is used as a coating support body, a protective layer is coated on the surface of the thermal sublimation base paper by adopting an air knife coating mode, and the coating comprises the following components in percentage by mass: 60 parts of china clay, 20 parts of polyvinyl alcohol with complete alcoholysis degree, 10 parts of glyoxal, 20 parts of preservative, 25% of solid content of coating, and coating weight of 6g/m in terms of dry solid component per single surface2。
Step two: coating a receiving layer on the surface of a support containing a protective layer by adopting an air knife coating mode, wherein the coating formula comprises the following components in percentage by mass: 50 parts of sodium carboxymethylcellulose, 40 parts of starch-based polyelectrolyte complex, 10 parts of acrylate emulsion, 0.5 part of defoaming agent, and 20% of coating solid content, wherein the coating weight is 7g/m of dry solid content per side2。
The third, fourth and fifth steps are the same as example 4.
Example 6
The strong migration type transfer printing object comprises a support, and a protective layer, a receiving and accommodating layer and an ink migration layer which are sequentially arranged on the support, wherein the preparation method comprises the following steps:
the first and second steps are the same as in example 4.
Step three: coating an ink migration layer on the surface of a support body containing a receiving layer and a protective layer by adopting a curtain coating mode, wherein the coating formula comprises the following components in percentage by mass: 60 parts of peregal, 30 parts of sodium carboxymethylcellulose, 10 parts of precipitated silicon dioxide, 0.3 part of defoaming agent, 25% of solid content of coating, and coating weight of 11g/m of dry solid content per side2And drying by a hot air drying cylinder to obtain the water-based disperse dye transfer printing printed matter with strong migration.
The procedure is as in example 4.
Step five: selecting a pure polyester fabric fiber fabric (the gram weight is 186 g/m)2) The pattern surface of the object to be printed and the fabric fiber fabric were bonded together by hot pressing using a thermal transfer pyrograph machine at 220 ℃ for 20 seconds. And (3) after transfer printing, detecting and calculating the reverse osmosis promotion rate (the reverse ink light color density of the back side of the printed matter/the reverse ink light color density after second transfer printing, wherein the high reverse osmosis promotion rate represents that the quantity of the ink transferred to the back side of the fabric is large, and the color difference of the front side and the back side is small) by using a spectral densitometer, and evaluating the white and white bottom exposure condition of the fabric after reverse rubbing by cutting by a visual observation method.
Comparative example 1
Comparative example 1 was made using conventional thermal sublimation transfer paper, and the remaining steps were the same as in example 1.
Comparative example 2
Comparative example 2 was made using conventional thermal sublimation transfer paper, and the remaining steps were the same as in example 4.
Effect example 1
The test results of examples 1 to 6 and comparative examples 1 to 2 are shown in Table 1.
TABLE 1
As can be seen from table 1, in examples 1 to 6, the printed matter of the strong migration type transfer printing of the present invention has a good reverse-bleeding improvement rate, and effectively solves a series of problems of easy yarn turning, large bottom exposure, large color difference between front and back surfaces, and the like after rubbing/stretching of an elastic/sports outdoor fabric and a fabric cloth with a high tightness and a high grammage.
Effect example 2
In order to investigate the influence of the amount of the coating composition of each layer of the object to be printed on the performance, test groups 1 to 5 and control groups 1 to 2 were provided. In the test groups 1 to 5 and the control groups 1 to 2, only the amount of the coating composition used was different in each layer, and as shown in table 2, the specific material and the preparation method of the coating composition in each layer were the same. Meanwhile, the test groups 1-5 and the control groups 1-2 were tested, and the test results are shown in Table 3.
TABLE 2
TABLE 3
As can be seen from table 3, the coating composition of the protective layer comprises the following components in parts by weight: 50-70 parts of inorganic pigment and filler, 10-30 parts of bio-based adhesive, 5-15 parts of modifier and 10-20 parts of additive, wherein the coating composition for receiving the accommodating layer comprises the following components in parts by weight: 30-50 parts of cellulose ether, 40-60 parts of starch and 10-20 parts of additive, wherein the coating composition of the ink migration layer comprises the following components in parts by weight: when 50-70 parts of permeation-assisted/dialysis compound, 30-50 parts of sodium carboxymethylcellulose and 10-20 parts of additive are adopted, the strong migration type transfer printing printed matter has better reverse osmosis lifting rate, and effectively solves the series problems of easy yarn turning, bottom exposure, large color difference of front and back surfaces and the like after the elastic/sports outdoor fabric and the fabric with higher tightness and gram weight are scratched/stretched.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A strong migration type transfer printing object to be printed is characterized in that the object to be printed comprises a support body, a protective layer, a receiving and accommodating layer and an ink migration layer which are sequentially arranged on the support body,
the coating composition of the protective layer comprises the following components in parts by weight: 30-80 parts of inorganic pigment and filler, 5-40 parts of bio-based adhesive, 1-15 parts of modifier and 5-20 parts of additive,
the coating composition for receiving the accommodating layer comprises the following components in parts by weight: 20-60 parts of cellulose ether, 30-60 parts of starch and 5-20 parts of additive,
the coating composition of the ink migration layer comprises the following components in parts by weight: 30-80 parts of permeation/dialysis assisting compound, 20-60 parts of sodium carboxymethyl cellulose and 1-20 parts of additive.
2. The photographic print as claimed in claim 1, wherein the support is a 3D network structure formed by interweaving natural fibers, and the support is a low-openness thermal sublimation transfer base paper with a basis weight of 40-80 g/m2The tightness is 0.7 to 1.1g/m3The air permeability is 250-400 mL/min, and the transverse expansion rate is less than or equal to 2.0%.
3. The print as claimed in claim 1, wherein the protective layer is applied in an amount of 2 to 10g/m in terms of dry solid content per one side2The coating amount of the receiving and accommodating layer is dry on each surfaceThe amount of the dry solid component is 2-10 g/m2The coating amount of the ink migration layer is 6-15 g/m in terms of dry solid component amount per single surface2。
4. The printed matter according to claim 1, wherein the coating composition of the protective layer comprises the following components in parts by weight: 50-70 parts of inorganic pigment and filler, 10-30 parts of bio-based adhesive, 5-15 parts of modifier and 10-20 parts of additive.
5. The print as claimed in claim 1, wherein the inorganic pigment and filler in the protective layer is at least one of china clay, light calcium carbonate, precipitated calcium carbonate, aluminum silicate and talc, the bio-based adhesive is at least one of partially alcoholyzed polyvinyl alcohol, fully alcoholyzed polyvinyl alcohol, carboxyl modified polyvinyl alcohol, hydrophobically modified starch and hydroxypropyl modified cellulose, the modifier is at least one of saturated aldehyde, unsaturated aldehyde, melamine formaldehyde resin, polyamide-epichlorohydrin and boric acid, and the additive is at least one of wax emulsion, styrene-butadiene latex, olefin copolymer emulsion, thickener, lubricant and preservative.
6. The printed matter of claim 1, wherein the coating composition of the receiving layer comprises the following components in parts by weight: 30-50 parts of cellulose ether, 40-60 parts of starch and 10-20 parts of additive.
7. The print receiving layer according to claim 1, wherein the cellulose ether is at least one of sodium carboxymethylcellulose, cross-linked carboxymethylcellulose, methylcellulose and hydroxypropylmethylcellulose, the starch is at least one of potato starch, corn starch, tapioca starch and modified starch, and the additive is at least one of a flow improver, an acrylate emulsion, a polyurethane emulsion, silica, an antifoaming agent and a preservative.
8. The printed matter according to claim 1, wherein the coating composition of the ink migration layer comprises the following components in parts by weight: 50-70 parts of permeation/dialysis assisting compound, 30-50 parts of sodium carboxymethyl cellulose and 10-20 parts of additive.
9. The print substrate of claim 1, wherein the permeation/dialysis assisting compound in the ink migration layer is at least one of white sugar, edible white sugar, xylitol, peregal, sodium diisooctyl sulfosuccinate, sodium di-sec-octyl maleate sulfonate, alkylphenol ethoxylates, condensates of fatty alcohols and ethylene oxide, and fatty alcohol polyoxypropylene ether, and the additive is at least one of a wetting agent, a cationic fixing agent, an antifoaming agent, precipitated silica, fumed silica, and a preservative.
10. The printed matter of claim 1, wherein the protective layer, the ink receptive layer, and the ink transfer layer are applied either in-machine or off-machine using a doctor blade, air knife, or curtain coating.
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