CN112552726A - Heat-resistant coating material for thermal transfer ribbon and preparation method and use method thereof - Google Patents
Heat-resistant coating material for thermal transfer ribbon and preparation method and use method thereof Download PDFInfo
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J31/00—Ink ribbons; Renovating or testing ink ribbons
- B41J31/05—Ink ribbons having coatings other than impression-material coatings
- B41J31/06—Ink ribbons having coatings other than impression-material coatings the coatings being directly on the base material, i.e. below impression transfer material; Ink ribbons having base material impregnated with material other than impression material
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- 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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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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Abstract
The invention discloses a heat-resistant coating material for a thermal transfer ribbon, which comprises the following components in parts by mass: 1-3 parts of titanium acetylacetonate, 220 parts of dimethyl silicone oil, 18-22 parts of methacryloxypropyltrimethoxysilane, 2.8 parts of dibutyltin dilaurate and 8850 parts of organic solvent 7850-. According to the heat-transfer carbon ribbon heat-resistant coating material provided by the invention, the acetylacetone titanium is mixed into the polymer chains of the dimethyl silicone oil, the methacryloxypropyl trimethoxy silane, the dibutyltin dilaurate and the like, so that the activation energy of the polymer chains is improved, a higher energy barrier needs to be overcome when the polymer chains are degraded, the high-temperature resistance of the heat-transfer carbon ribbon heat-resistant coating is effectively improved, the effective printing temperature of the carbon ribbon can be increased to 128 ℃, the high-temperature resistance of the carbon ribbon exceeds the high-temperature resistance of an imported carbon ribbon at 125 ℃, and the probability of fusion fracture of a base film in the printing process is remarkably reduced.
Description
Technical Field
The invention relates to the field of heat-resistant coating materials for thermal transfer ribbons, in particular to a heat-resistant coating material for thermal transfer ribbons, and a preparation method and a use method thereof.
Background
The thermal digital printer transfers a specific information carrier onto a substrate by using a thermal transfer ribbon to form a two-dimensional code, a bar code, a picture, characters and the like. The heat transfer printing technology is widely applied to the fields of modern bills, clothing labels, medicine packaging, manufacturing industry and the like, and has wide application and large using amount due to the automatic identification function.
The transfer carbon belt is a core material in the operation process of a thermal transfer printer, consists of 4 parts of a heat-resistant coating, a PET base film, a bottom coating, ink and the like, and can bear the action of instantaneous high temperature and pressure generated by a thermal head of the printer when thermal transfer printing is carried out. The carbon tape base tape is a PET film with the thickness of 4.5-6 μm, and the PET film begins to deform at the temperature of about 210 ℃. Under the combined action of high temperature and stretching external force, the base film of the carbon tape product is easy to melt and break. In order to secure the printing effect, it is necessary to apply a heat-resistant coating layer on the back surface of the base film. The following requirements are made for the heat-resistant coating in practical production: it is required to have high heat resistance to ensure that the PET substrate is not damaged when contacting the thermal print head, a friction coefficient when contacting the thermal print head is required to be small to ensure that the transfer process is smoothly performed, and the heat-resistant coating layer is required to have good adhesion to the PET base film to ensure that the thermal print head is not polluted in the printing process.
In recent years, reports on environmental protection performance and printing performance of thermal transfer ribbons show explosive growth, and an invention patent "an environmental-friendly water-based thermal transfer ribbon and a preparation method thereof" (CN202010411129.7) reports an environmental-friendly water-based thermal transfer ribbon, wherein a release layer and a heat-resistant coating of the environmental-friendly thermal transfer ribbon both adopt water-based resin materials to replace butanone, toluene, cyclohexanone and the like as solvents, so that the environmental protection performance of the thermal transfer ribbon is improved to a certain extent. The invention patent of thermal transfer ribbon suitable for printing bills (CN201910930458.X) reports a thermal transfer ribbon used in a bill printing process, wherein a residual ink layer after printing can be easily scraped, and no printing trace is left on a base tape. The invention discloses an ionic liquid modified bar code carbon ribbon back coating paint and a preparation method thereof (CN201810674167.4), and reports that a polyacrylate back gluing high molecular chain is introduced into an ionic liquid containing double bonds in a block polymerization mode to produce a high molecular heat-resistant coating material with low resistivity, and the bar code carbon ribbon is coated, so that the printing quality of a thermal transfer carbon ribbon is improved. The invention discloses an organic silicon modified acrylate emulsion and a preparation method thereof, a thermal transfer printing back coating liquid, a thermal transfer printing carbon ribbon back coating and a carbon ribbon (CN201910669619.4), and reports the organic silicon modified acrylate emulsion which can be used for preparing a thermal transfer printing carbon ribbon heat-resistant coating material, so that the problems of high curing temperature, poor adhesion with a base material and the like in the production process when an organic silicon resin system is adopted are relieved, and the organic silicon modified acrylate emulsion has the advantages of convenience in operation, low preparation cost, simple process, convenience in large-scale production and the like. However, in the field of thermal transfer ribbon, the heat resistance and adhesion performance of the heat-resistant coating material are not sufficient, and the key problems of ribbon breakage and ribbon jamming under the production condition of high-temperature continuous printing are not completely solved, and the heat resistance and adhesion of the heat-resistant coating material are still to be improved.
Therefore, a heat-resistant coating material for a thermal transfer ribbon, a preparation method and a use method thereof need to be designed.
Disclosure of Invention
In order to overcome the defects in the prior art, a heat-resistant coating material for a thermal transfer ribbon, a preparation method and a use method thereof are provided.
The invention is realized by the following scheme:
a heat-resistant coating material of a thermal transfer ribbon comprises the following components in parts by mass: 1-3 parts of titanium acetylacetonate, 220 parts of dimethyl silicone oil, 18-22 parts of methacryloxypropyltrimethoxysilane, 2.8 parts of dibutyltin dilaurate and 8850 parts of organic solvent 7850-.
The organic solvent is one or more of dimethylbenzene, butanone and cyclohexanone.
A preparation method of a heat-resistant coating material of a thermal transfer ribbon comprises the following steps:
step one, weighing 1-3 parts of titanium acetylacetonate, 220 parts of simethicone 200 and 18-22 parts of methacryloxypropyltrimethoxysilane, adding into an organic solvent, and stirring at room temperature for 40-60 hours to obtain an organic solution of titanium acetylacetonate;
step two, continuously adding the organic solvent into the solution obtained in the step one and stirring for 2-4 hours;
step three, weighing 2.8 parts of dibutyltin dilaurate, adding the dibutyltin dilaurate into an organic solvent, and stirring for 15 minutes at room temperature;
step four, adding the solution obtained in the step three into the solution obtained in the step two, keeping the total amount of the organic solvent at 7850-8850 parts, and stirring for 10-20 minutes to obtain the finished product of the heat-resistant coating material for the thermal transfer ribbon.
The organic solvent is one or more of dimethylbenzene, butanone and cyclohexanone.
A method for using a heat-resistant coating material of a thermal transfer ribbon comprises the following steps:
firstly, driving a PET base film to move by a driving shaft, fixing a coating plate, and uniformly coating the finished product of the heat-resistant coating material of the heat-transfer printing carbon ribbon on the surface of the PET base film;
secondly, scraping redundant heat-transfer printing carbon ribbon heat-resistant coating material finished products on the surface of the PET base film by using a fixed scraper, and keeping the thickness of the heat-transfer printing carbon ribbon heat-resistant coating material finished products coated on the surface of the PET base film consistent;
and thirdly, driving the PET base film coated with the heat-transfer carbon ribbon heat-resistant coating material finished product to horizontally pass through a drying oven by a driving shaft, and drying to obtain the heat-transfer carbon ribbon heat-resistant coating on the surface of the PET base film.
The invention has the beneficial effects that:
1. according to the heat-transfer carbon ribbon heat-resistant coating material provided by the invention, the acetylacetone titanium is mixed into the polymer chains of the dimethyl silicone oil, the methacryloxypropyl trimethoxy silane, the dibutyltin dilaurate and the like, so that the activation energy of the polymer chains is improved, a higher energy barrier needs to be overcome when the polymer chains are degraded, more energy is absorbed, the high-temperature resistance of the heat-transfer carbon ribbon heat-resistant coating is effectively improved, the effective printing of the carbon ribbon can be improved to 128 ℃, the high-temperature resistance of the carbon ribbon exceeds the 125 ℃ of an imported carbon ribbon, and the probability of fusion fracture of a base film in the printing process is obviously reduced.
2. This application drive shaft drive coating PET base film after resistant passes through the oven, has improved the drying speed and the production speed of heat-resisting coating greatly. Meanwhile, after the solvent is volatilized, the acetylacetone titanium can be subjected to a crosslinking reaction with active groups such as hydroxyl, amino and the like in the PET base film, so that the molecular weight is increased after a bridge is formed, and the adhesive force of the heat-resistant coating material and the PET base material is improved.
3. The method has simple process, can better meet the requirement of the actual production process of a factory, and improves the enterprise competitiveness while improving the performance of the heat-resistant coating of the heat transfer ribbon.
Drawings
FIG. 1 is a schematic diagram of a thermal transfer ribbon structure.
FIG. 2 is a schematic view of the molecular structure of titanium acetylacetonate in accordance with the present invention.
FIG. 3 is a schematic diagram of the drying process of the PET base film according to the present invention.
In the figure: 1-heat resistant coating; 2-PET base film; 3-a base coat; 4-ink; 5-a reel; 6-PET basement membrane after coating the heat-resisting coating material; 7-a transfer wheel; 8-oven.
Detailed Description
The invention is further illustrated by the following specific examples:
a heat-resistant coating material of a thermal transfer ribbon comprises the following components in parts by mass: 1-3 parts of titanium acetylacetonate, 220 parts of dimethyl silicone oil, 18-22 parts of methacryloxypropyltrimethoxysilane, 2.8 parts of dibutyltin dilaurate and 8850 parts of organic solvent 7850-. The molecular structure of the titanium acetylacetonate is shown in fig. 2.
The organic solvent is one or more of dimethylbenzene, butanone and cyclohexanone.
A preparation method of a heat-resistant coating material of a thermal transfer ribbon comprises the following steps:
step one, weighing 1-3 parts of titanium acetylacetonate, 220 parts of simethicone 200 and 18-22 parts of methacryloxypropyltrimethoxysilane, adding into an organic solvent, and stirring at room temperature for 40-60 hours to obtain an organic solution of titanium acetylacetonate;
step two, continuously adding the organic solvent into the solution obtained in the step one and stirring for 2-4 hours;
step three, weighing 2.8 parts of dibutyltin dilaurate, adding the dibutyltin dilaurate into an organic solvent, and stirring for 15 minutes at room temperature;
step four, adding the solution obtained in the step three into the solution obtained in the step two, keeping the total amount of the organic solvent at 7850-8850 parts, and stirring for 10-20 minutes to obtain the finished product of the heat-resistant coating material for the thermal transfer ribbon.
The organic solvent is one or more of dimethylbenzene, butanone and cyclohexanone.
A method for using a heat-resistant coating material of a thermal transfer ribbon comprises the following steps:
firstly, driving a PET base film to move by a driving shaft, fixing a coating plate, and uniformly coating the finished product of the heat-resistant coating material of the heat-transfer printing carbon ribbon on the surface of the PET base film;
secondly, scraping redundant heat-transfer printing carbon ribbon heat-resistant coating material finished products on the surface of the PET base film by using a fixed scraper, and keeping the thickness of the heat-transfer printing carbon ribbon heat-resistant coating material finished products coated on the surface of the PET base film consistent;
and thirdly, driving the PET base film coated with the heat-transfer carbon ribbon heat-resistant coating material finished product to horizontally pass through a drying oven by a driving shaft, and drying to obtain the heat-transfer carbon ribbon heat-resistant coating on the surface of the PET base film. In practice, the length of the oven is 15 meters.
Based on the heat-resistant coating of the thermal transfer ribbon, the structure of the prepared thermal transfer ribbon is shown in fig. 1, wherein the heat-resistant coating 1 is prepared by adopting the heat-resistant coating material of the thermal transfer ribbon, the heat-resistant coating 1 is correspondingly connected with a PET base film 2, the PET base film 2 is correspondingly connected with a primer layer 3, and the primer layer 3 is correspondingly connected with ink 4. The process that this application PET base film was dried is shown in fig. 3, and spool 5 and transfer gear 7 drive PET base film 6 after coating the heat-resisting coating material of heat-transfer ribbon horizontal migration in the oven, and the oven will be through the heat-resisting coating material of heat-transfer ribbon stoving.
Example 1
The preparation method of the heat-resistant coating material of the thermal transfer ribbon (organic solvent is dimethylbenzene):
(1) weighing 1g of titanium acetylacetonate, 200g of simethicone, 18g of methacryloxypropyltrimethoxysilane and 1000g of xylene, uniformly mixing, and stirring at room temperature for 40 hours to obtain an organic solution of titanium acetylacetonate;
(2) adding 2000g of xylene into the solution obtained in the step (1) and stirring for 2 hours;
(3) weighing 2.8g of dibutyltin dilaurate, adding 4850g of dimethylbenzene into the dibutyltin dilaurate, and stirring the mixture at room temperature for 15 minutes;
(4) and (3) adding the solution obtained in the step (3) into the solution obtained in the step (2), and stirring for 10 minutes to obtain the heat-resistant coating material for the thermal transfer ribbon.
The driving shaft drives the PET basal membrane to move at the speed of 290 m/min. The coating plate was fixed, and the heat-resistant coating material for the thermal transfer ribbon prepared in example 1 was transferred thereto at a uniform speed and uniformly coated on the surface of the PET base film. And scraping redundant heat-transfer printing carbon ribbon heat-resistant coating materials on the surface of the PET base film by using a fixed scraper so as to ensure that the coating thickness is consistent. The PET base film coated with the heat-resistant transfer carbon tape heat-resistant coating material passes through a 15-meter-long oven at a speed of 290 m/min to improve the bonding performance of the heat-resistant transfer carbon tape heat-resistant coating material and the PET base film, wherein the temperature of the oven is 105 ℃. In the case that the thermal transfer ribbon prepared in this example adopts all-black printing: the effective printing temperature step of the carbon tape can be increased to 128 ℃ set in the Sichuan printer S621C, the label paper has no flaw, and the PET basal film has no crack. 63 sheets per minute can be printed in continuous printing.
Example 2
The preparation method of the heat-resistant coating material of the thermal transfer ribbon (the organic solvent is butanone):
(1) weighing 2g of titanium acetylacetonate, 210g of simethicone, 20g of methacryloxypropyltrimethoxysilane and 2000g of butanone, and stirring at room temperature for 50 hours to obtain an organic solution of the titanium acetylacetonate;
(2) adding 2000g of butanone into the solution obtained in the step (1) and stirring for 3 hours;
(3) weighing 2.8g of dibutyltin dilaurate, adding 4000g of butanone, and stirring at room temperature for 15 minutes;
(4) and (3) adding the solution obtained in the step (3) into the solution obtained in the step (2), and stirring for 15 minutes to obtain the heat-resistant coating material for the thermal transfer ribbon.
The driving shaft drives the PET basal membrane to move at the speed of 300 m/min. The coating plate was fixed, and the heat-resistant coating material for the thermal transfer ribbon prepared in example 2 was transferred thereto at a uniform speed and uniformly coated on the surface of the PET base film. And scraping redundant heat-transfer printing carbon ribbon heat-resistant coating materials on the surface of the PET base film by using a fixed scraper so as to ensure that the coating thickness is consistent. The PET base film coated with the heat-transfer carbon tape heat-resistant coating material passes through a 15-meter-long oven at a speed of 300 m/min to improve the bonding performance of the heat-transfer carbon tape heat-resistant coating material and the PET base film, wherein the temperature of the oven is 110 ℃. When the prepared thermal transfer ribbon adopts full-black printing: the effective printing temperature of the carbon tape can be increased to 128 ℃, the label paper has no flaw, and the PET basal membrane has no crack. When the printing is continuously carried out, 65 sheets can be printed every minute.
Example 3
The preparation method of the heat-resistant coating material of the thermal transfer ribbon (the organic solvent is cyclohexanone):
(1) weighing 3g of titanium acetylacetonate, 220g of simethicone, 22g of methacryloxypropyltrimethoxysilane and 1500g of cyclohexanone, and stirring at room temperature for 60 hours to obtain an organic solution of the titanium acetylacetonate;
(2) adding 1500g of cyclohexanone into the solution obtained in the step (1) and stirring for 4 hours;
(3) weighing 2.8g of dibutyltin dilaurate, adding 5850g of cyclohexanone into the dibutyltin dilaurate, and stirring the mixture at room temperature for 15 minutes;
(4) and (3) adding the solution obtained in the step (3) into the solution obtained in the step (2), and stirring for 20 minutes to obtain the heat-resistant coating material for the thermal transfer ribbon.
The driving shaft drives the PET basal membrane to move at the speed of 310 m/min. The coating plate was fixed, and the heat-resistant coating material for the thermal transfer ribbon prepared in example 3 was transferred thereto at a uniform speed and uniformly coated on the surface of the PET base film. And scraping redundant heat-transfer printing carbon ribbon heat-resistant coating materials on the surface of the PET base film by using a fixed scraper so as to ensure that the coating thickness is consistent. The PET base film coated with the heat-transfer carbon tape heat-resistant coating material passes through a 15-meter-long oven at a speed of 310 m/min to improve the bonding performance of the heat-transfer carbon tape heat-resistant coating material and the PET base film, wherein the oven temperature is 115 ℃. When the prepared thermal transfer ribbon adopts full-black printing: the effective printing temperature of the carbon tape can be increased to 128 ℃, the label paper has no flaw, and the PET basal membrane has no crack. When the printing is continuously carried out, 65 sheets can be printed every minute.
Example 4
The preparation method of the heat-resistant coating material of the thermal transfer ribbon (the organic solvent is butanone and cyclohexanone):
(1) weighing 3g of titanium acetylacetonate, 220g of simethicone, 22g of methacryloxypropyltrimethoxysilane, 1000g of butanone and 1000g of cyclohexanone, and stirring at room temperature for 60 hours to obtain an organic solution of titanium acetylacetonate;
(2) adding 1500g of butanone and cyclohexanone into the solution obtained in the step (1) respectively and stirring for 4 hours;
(3) weighing 2.8g of dibutyltin dilaurate, adding 1900g of butanone and cyclohexanone respectively, and stirring at room temperature for 15 minutes;
(4) and (3) adding the solution obtained in the step (3) into the solution obtained in the step (2), and stirring for 20 minutes to obtain the heat-resistant coating material for the thermal transfer ribbon.
The driving shaft drives the PET basal membrane to move at the speed of 295 m/min. The coating plate was fixed, and the heat-resistant coating material for the thermal transfer ribbon prepared in example 4 was transferred thereto at a uniform speed and uniformly coated on the surface of the PET base film. And scraping redundant heat-transfer printing carbon ribbon heat-resistant coating materials on the surface of the PET base film by using a fixed scraper so as to ensure the coating thickness to be consistent. The PET base film coated with the heat-transfer carbon tape heat-resistant coating material passes through a 15-meter-long oven at the speed of 300 m/min to improve the bonding performance of the heat-transfer carbon tape heat-resistant coating material and the PET base film, wherein the temperature of the oven is 115 ℃. When the prepared thermal transfer ribbon adopts full-black printing: the effective printing temperature of the carbon tape can be increased to 128 ℃, the label paper has no flaw, and the PET basal membrane has no crack. When the printing is continuously carried out, 66 sheets can be printed every minute.
Example 5
The preparation method of the heat-resistant coating material of the thermal transfer ribbon (organic solvents are dimethylbenzene and butanone):
(1) weighing 2.5g of titanium acetylacetonate, 210g of simethicone, 20g of methacryloxypropyltrimethoxysilane, 1000g of xylene and 1000g of butanone, and stirring at room temperature for 50 hours to obtain an organic solution of the titanium acetylacetonate;
(2) adding 1000g of xylene and butanone into the solution obtained in the step (1) and stirring for 3 hours;
(3) weighing 2.8g of dibutyltin dilaurate, adding 2000g of dimethylbenzene and butanone respectively, and stirring at room temperature for 15 minutes;
(4) and (3) adding the solution obtained in the step (3) into the solution obtained in the step (2), and stirring for 15 minutes to obtain the heat-resistant coating material for the thermal transfer ribbon.
The driving shaft drives the PET basal membrane to move at the speed of 290 m/min. The coating plate was fixed, and the heat-resistant coating material for the thermal transfer ribbon prepared in example 5 was transferred thereto at a uniform speed and uniformly coated on the surface of the PET base film. And scraping redundant heat-transfer printing carbon ribbon heat-resistant coating materials on the surface of the PET base film by using a fixed scraper so as to ensure that the coating thickness is consistent. The PET base film coated with the heat-transfer carbon tape heat-resistant coating material passes through an oven with the length of 15 meters at the speed of 290 meters/minute to improve the bonding performance of the heat-transfer carbon tape heat-resistant coating material and the PET base film, wherein the temperature of the oven is 109 ℃. When the prepared thermal transfer ribbon adopts full-black printing: the effective printing temperature of the carbon tape can be increased to 128 ℃, the label paper has no flaw, and the PET basal membrane has no crack. 63 sheets per minute can be printed in continuous printing.
According to the heat-transfer ribbon heat-resistant coating material and the preparation method and the using method thereof, titanium acetylacetonate is mixed into a macromolecular chain of organic matters such as dimethyl silicone oil, methacryloxypropyl trimethoxy silane, dibutyltin dilaurate and the like, so that the activation energy of the macromolecular chain is improved, a higher energy barrier needs to be overcome for degradation of the macromolecular chain, more energy is absorbed, and the high-temperature resistance of the heat-transfer ribbon heat-resistant coating is effectively improved. The prepared heat-transfer carbon ribbon heat-resistant coating has good high temperature resistance and strong adhesive force with the PET base film, and reduces the probability of melting and breaking of the PET base film in the printing process.
Although the invention has been described and illustrated in some detail, it should be understood that various modifications may be made to the described embodiments or equivalents may be substituted, as will be apparent to those skilled in the art, without departing from the spirit of the invention.
Claims (5)
1. A heat-resistant coating material for a thermal transfer ribbon is characterized by comprising the following components in parts by mass: 1-3 parts of titanium acetylacetonate, 220 parts of dimethyl silicone oil, 18-22 parts of methacryloxypropyltrimethoxysilane, 2.8 parts of dibutyltin dilaurate and 8850 parts of organic solvent 7850-.
2. The heat-resistant coating material for the thermal transfer ribbon as claimed in claim 1, wherein: the organic solvent is one or more of dimethylbenzene, butanone and cyclohexanone.
3. A preparation method of a heat-resistant coating material of a thermal transfer ribbon is characterized by comprising the following steps:
step one, weighing 1-3 parts of titanium acetylacetonate, 220 parts of simethicone 200 and 18-22 parts of methacryloxypropyltrimethoxysilane, adding into an organic solvent, and stirring at room temperature for 40-60 hours to obtain an organic solution of titanium acetylacetonate;
step two, continuously adding the organic solvent into the solution obtained in the step one and stirring for 2-4 hours;
step three, weighing 2.8 parts of dibutyltin dilaurate, adding the dibutyltin dilaurate into an organic solvent, and stirring for 15 minutes at room temperature;
step four, adding the solution obtained in the step three into the solution obtained in the step two, keeping the total amount of the organic solvent at 7850-8850 parts, and stirring for 10-20 minutes to obtain the finished product of the heat-resistant coating material for the thermal transfer ribbon.
4. The preparation method of the heat-resistant coating material of the thermal transfer ribbon according to claim 3, characterized in that: the organic solvent is one or more of dimethylbenzene, butanone and cyclohexanone.
5. The use method of the heat-resistant coating material of the thermal transfer ribbon is characterized by comprising the following steps:
firstly, driving a PET base film to move by a driving shaft, fixing a coating plate, and uniformly coating the finished product of the heat-resistant coating material of the heat-transfer printing carbon ribbon on the surface of the PET base film;
secondly, scraping redundant heat-transfer printing carbon ribbon heat-resistant coating material finished products on the surface of the PET base film by using a fixed scraper, and keeping the thickness of the heat-transfer printing carbon ribbon heat-resistant coating material finished products coated on the surface of the PET base film consistent;
and thirdly, driving the PET base film coated with the heat-transfer carbon ribbon heat-resistant coating material finished product to horizontally pass through a drying oven by a driving shaft, and drying to obtain the heat-transfer carbon ribbon heat-resistant coating on the surface of the PET base film.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113199884A (en) * | 2021-05-24 | 2021-08-03 | 福建鸣友新材料科技有限公司 | Heat-resistant back coating material for thermal transfer ribbon and preparation method and application thereof |
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| CN116144261A (en) * | 2022-11-18 | 2023-05-23 | 福建鸣友新材料科技有限公司 | Heat-resistant coating for thermal transfer carbon ribbon, preparation method and coating process thereof |
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