CN114261220B - Thermal transfer printing resin thermal transfer ribbon for various types of base materials and preparation method thereof - Google Patents
Thermal transfer printing resin thermal transfer ribbon for various types of base materials and preparation method thereof Download PDFInfo
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Abstract
The invention relates to the technical field of thermal transfer printing, in particular to a thermal transfer printing resin carbon ribbon for multiple types of base materials and a preparation method thereof. The resin carbon ribbon comprises a base layer, wherein a back coating layer and a pigment layer are respectively arranged on two sides of the base layer, and a bonding layer is also arranged on the pigment layer; the components of the following layer are resin and organic solvent, and the resin comprises one or more of polyester resin, aldehyde resin, polyurethane and methacrylic acid. The resin carbon belt can be transferred on different substrates and has a good transfer effect, the transfer capability and the transfer quality of the resin carbon belt on various transferred substrates are improved by the aid of the adhesion layer, and meanwhile, patterns after transfer printing have good scratch resistance and solvent resistance.
Description
Technical Field
The invention relates to the technical field of thermal transfer printing, in particular to a thermal transfer printing resin carbon ribbon for multiple types of base materials and a preparation method thereof.
Background
The thermal transfer printing is a printing method in which an ink ribbon with a transferable pigment layer is heated and pressurized by a thermal printing head through a thermal transfer printer, and the pigment layer is transferred to a substrate under the action of energy.
Compared with a wax-based color ribbon and a mixed-based color ribbon, the resin color ribbon has better printing quality, weather resistance and the like. With the increase of the application field of thermal transfer printing, the types of base materials are more complicated, the material types of the base materials are greatly different, the roughness of the surface of the base materials is greatly different, the application environments are different, and the requirements on the resin color ribbon are increased.
Aiming at the situation, the existing method usually develops different resin colors to correspondingly match the base materials, but the method has obvious defects along with the continuous increase of the base material types, the color tape is frequently replaced during printing, the workload during printing is increased, the printing speed is reduced, the use of the color tape is greatly wasted, the development work of the resin color tape is increased, and the method cannot adapt to the continuous expansion of the application field of thermal transfer printing.
In the thermal transfer printing resin carbon ribbon in the prior art, when the thermal transfer printing resin carbon ribbon is transferred to different base materials, the transfer printing capability is uneven, and the types of the adapted base materials are limited; moreover, after each substrate is transferred, the color quality, lines, scratch resistance and solvent resistance of the transferred pattern can be difficult to ensure, resulting in severe limitation of the application range of these resin carbon tapes.
Disclosure of Invention
The invention aims to solve the technical problem of providing a thermal transfer printing resin carbon ribbon for various types of base materials and a preparation method thereof.
The technical scheme for solving the technical problems is as follows:
the invention relates to a thermal transfer printing resin carbon ribbon for various types of base materials, which comprises a base layer, wherein a back coating layer and a pigment layer are respectively arranged on two sides of the base layer, and a bonding layer is also arranged on the pigment layer; the adhesive layer comprises resin, wherein the resin comprises one or more of polyester resin, aldehyde resin, polyurethane and methacrylic acid.
The technical scheme of the invention has the beneficial effects that: by adopting the adhesive layer made of the resin material, the resin carbon tape can have good transfer printing effect on different substrates. Specifically, the adhesive layer has good adhesion and embedding performance to transferred substrates with different materials and different roughness, and the pigment layer can be tightly adhered to various transferred substrates by virtue of strong adhesion with the transferred substrates and the pigment layer, so that the transfer capability of the pigment layer on the transferred substrates and the quality of transferred patterns are remarkably improved. Meanwhile, the excellent adhesion of the adhesion layer and the pigment layer makes the scratch resistance and the solvent resistance of the transferred pattern good.
The invention can be realized by the following further technical scheme:
furthermore, the components of the resin and the parts by mass of the components are 20-80 parts of polyester resin, 20-80 parts of polyaldehyde resin, 20-40 parts of polyurethane and 5-20 parts of methacrylic acid.
The beneficial effect of adopting the further technical scheme is that: experiments prove that the specific resin of the formula has the best adhesion and embedding performance.
Further, the components of the adhesive layer and the parts by mass of the components are 1 to 30 parts of resin and 75 to 85 parts of organic solvent.
The beneficial effect of adopting the further technical scheme lies in that: the formula can ensure that the adhesive layer has good stability.
Furthermore, the components of the pigment layer and the parts by mass of the components are 20-60 parts of polymer resin, 3-10 parts of wax, 5-15 parts of pigment and 66-75 parts of organic solvent.
The beneficial effect of adopting the further technical scheme lies in that: the above formulation can provide the pigment layer with good stability and tinting strength.
Further, the components of the polymer resin and the mass parts of the components are 50-70 parts of polyester resin, 5-20 parts of methacrylic resin, 3-10 parts of polyolefin resin, 5-10 parts of styrene resin and 10-15 parts of ethylene-vinyl acetate copolymer.
The beneficial effect of adopting the further technical scheme is that: the pigment layer has good embedding affinity to various types of transferred substrates by the optimal matching use of various resins; and simultaneously has good solvent resistance effect.
Further, the back coating comprises one or more of polyurethane modified organic silicon resin, acrylic acid modified organic silicon resin, polyvinyl acetal resin and polyvinyl butyral resin.
The beneficial effect of adopting the further technical scheme lies in that: the back coating layer may be formulated to prevent adverse effects such as stickiness or wrinkle due to heating of the temperature-sensitive heating head during thermal transfer.
Further, the thickness of the base layer is 4-10 μm, the thickness of the pigment layer is 0.3-1.2 μm, the thickness of the adhesion layer is 0.01-0.5 μm, and the thickness of the back coating is 0.5-1.2 μm.
The beneficial effect of adopting the further technical scheme lies in that: the structure of each layer with the thickness can ensure that the transferred pattern has good solvent resistance and scratch resistance and clear pattern lines when the thermal transfer printing resin carbon belt is used for transfer printing.
Further, a release layer is arranged between the base layer and the pigment layer; the release layer comprises, by mass, 3 parts of wax, 2-3 parts of polyester resin, 1-2 parts of methacrylic resin and 92-94 parts of an organic solvent.
The beneficial effect of adopting the further technical scheme lies in that: from the type layer can help pigment layer rendition, improves the rendition ability, prevents that pigment layer excessively bonds the basic unit and leads to being difficult to the problem of rendition when the heating.
Further, the thickness of the release layer is 0.05-0.5 μm.
The beneficial effect of adopting the further technical scheme lies in that: the release layer with the thickness has a good auxiliary effect.
The invention also provides a preparation method of the thermal transfer printing resin carbon ribbon, which comprises the following steps:
respectively preparing solutions of the pigment layer, the adhesion layer and the back coating layer;
corona is applied to two side faces of the base layer;
coating the solution of the back coating layer on one side of the base layer and drying, and coating the solution of the pigment layer on the other side of the base layer and drying;
and coating the solution of the adhesion layer on the pigment layer and drying.
The preparation method has the characteristics of simple operation, low cost and high efficiency; the prepared thermal transfer ribbon can be suitable for base materials made of various materials and can be widely applied.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of a thermal transfer resin ribbon for multiple types of substrates according to the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of a thermal transfer resin ribbon for multiple types of substrates according to the present invention;
fig. 3 is a pattern of the thermal transfer resin carbon ribbon for multiple types of substrates, in which the carbon ribbon of example 2 is transferred on a silver-coated paper and subjected to a scratch resistance test;
FIG. 4 is a pattern of a thermal transfer resin carbon ribbon for multi-type substrates according to the present invention, the carbon ribbon of example 2 was transferred on coated paper and subjected to a scratch resistance test;
FIG. 5 is a pattern of a thermal transfer resin ribbon for a multi-type substrate according to the present invention, in which the ribbon of comparative example 1 was transferred on a silver-backed paper and subjected to a scratch resistance test;
FIG. 6 is a pattern of a carbon tape of a thermal transfer resin for multi-type substrates according to the present invention, which is a comparative example 1, transferred on coated paper and subjected to a scratch resistance test;
FIG. 7 is a pattern of a thermal transfer resin ribbon for a multi-type substrate according to the present invention, in which the ribbon of comparative example 2 was transferred on a silver-backed paper and subjected to a scratch resistance test;
fig. 8 is a pattern of a thermal transfer resin ribbon for multi-type substrates according to the present invention, in which the ribbon of comparative example 2 was transferred on coated paper and subjected to a scratch resistance test.
In the drawings, the reference numbers indicate the following list of parts:
1. a base layer; 2. a pigment layer; 3. a bonding layer; 4. back coating; 5. and a release layer.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
As shown in FIG. 1, the invention provides a thermal transfer printing resin carbon ribbon for multi-type base materials, which comprises a base layer 1, wherein a back coating layer 4 and a pigment layer 2 are respectively arranged on two sides of the base layer 1, and an adhesion layer 3 is also arranged on the pigment layer 2; the component of the following layer 3 is resin, and the resin comprises one or more of polyester resin, aldehyde resin, polyurethane and methacrylic acid.
The thermal transfer resin carbon belt for various types of base materials adopts the adhesive layer 3 made of the resin material, so that the resin carbon belt has good transfer printing effect on different base materials. Specifically, the adhesive layer 3 of the present invention has good adhesion and embedding properties to the transferred substrates of different materials and different roughness, and by virtue of its strong adhesion to the transferred substrates and the pigment layer, the pigment layer 2 can be closely adhered to various transferred substrates, thereby significantly improving the transfer capability of the pigment layer 2 on the transferred substrates and the quality of the transferred patterns. Meanwhile, the excellent adhesion of the adhesion layer 3 to the pigment layer provides good scratch resistance and solvent resistance of the transferred pattern.
For the adhesive layer 3 of the present invention, the components of the resin and the parts by mass of each component are 20 to 80 parts of polyester resin, 20 to 80 parts of polyaldehyde resin, 20 to 40 parts of polyurethane and 5 to 20 parts of methacrylic acid; experiments prove that the specific resin of the formula has the best adhesion and embedding performance, for example, polyester resin has the best adhesion to silver-coated paper, and aldehyde resin has the best adhesion to coated paper.
In the above embodiment, the components of the adhesive layer 3 and the parts by mass of the components are preferably 1 to 30 parts by mass of the resin and 75 to 85 parts by mass of the organic solvent.
In the above embodiment, it is preferable that the thickness of the adhesion layer 3 is 0.01 to 0.5 μm; experiments prove that the thickness range of the adhesive layer 3 can ensure that the transfer printing carbon tape has enough thickness to keep good adhesion capability, and meanwhile, the transfer printing carbon tape is not too thick to cause increase of production cost.
Further preferably, the thickness of the adhesion layer 3 is 0.1 to 0.3 μm; the adhesion layer 3 in this thickness range also has a function of assisting the pigment layer 2 to maintain a good transfer effect.
For the pigment layer 2, the components and the parts by mass of each component of the pigment layer 2 are 20-60 parts of polymer resin, 3-10 parts of wax, 5-15 parts of pigment and 66-75 parts of organic solvent; the pigment layer 2 has good embedding affinity to various types of transferred substrates by the preferred matching use of various resins; and simultaneously, the solvent resistance and the scratch resistance of the transfer printing pattern are further improved.
In the above examples, the components of the polymer resin and the parts by mass of each component are preferably 50 to 70 parts of polyester resin, 5 to 20 parts of methacrylic resin, 3 to 10 parts of polyolefin resin, 5 to 10 parts of styrene resin, and 10 to 15 parts of ethylene-vinyl acetate copolymer.
In the above embodiment, preferably, the wax is one or more of PE wax, carnauba wax, and EVA wax.
In the above embodiment, preferably, the pigment is an inorganic pigment.
The back coating 4 of the present invention comprises one or more of polyurethane-modified silicone resin, acrylic-modified silicone resin, polyvinyl acetal resin, and polyvinyl butyral resin; by providing the back coat layer 4, adverse effects such as stickiness or generation of wrinkles due to heating of the temperature-sensitive heating head during thermal transfer can be prevented.
In the above examples, it is preferable that inorganic fine particles such as talc, kaolin, calcium carbonate, aluminum hydroxide, silica, graphite, boron nitride and the like are further added to the components of the back coat layer 4 in some cases.
In the above embodiment, preferably, one or more of a leveling agent, a dispersing agent and an antistatic agent is often added to the components of the back coating layer 4; giving the back coating 4 a smooth, uniform or antistatic behaviour.
In the above embodiment, it is preferable that a crosslinking agent such as an isocyanate compound is further added to the components of the back coating layer 4; enabling the back coating 4 to remain stable.
In the above embodiment, it is preferable that the thickness of the back coat layer 4 is in the range of 0.5 to 1.2 μm, and it is further preferable that the thickness of the back coat layer 4 is in the range of 0.4 to 0.6 μm; through experiments, the thickness range can enable the anti-sticking and anti-wrinkling effect of the back coating 4 to be optimal.
The base layer 1 of the present invention is one of a polyethylene terephthalate (PET) film, a 1, 4-polycyclohexylenedimethylene terephthalate film, a polyethylene naphthalate (PEN) film, a polyphenylene sulfide film, a Polystyrene (PS) film, a polypropylene (PP) film, a Polyethylene (PE) film, a polyvinyl chloride film, a nylon film, and a polyimide film.
The base layer 1 has a thickness of 4 to 10 μm, preferably 4 to 6 μm.
In one embodiment of the present invention, the thicknesses of the base layer 1, the pigment layer 2, the adhesion layer 3 and the back coating layer 4 are respectively as follows: the thickness of the base layer 1 is 4-10 μm, the thickness of the pigment layer 2 is 0.3-1.2 μm, the thickness of the following layer 3 is 0.01-0.5 μm, and the thickness of the back coating layer 4 is 0.5-1.2 μm; the thermal transfer printing resin carbon belt with the thickness has a good transfer printing effect.
As shown in fig. 2, a release layer 5 is further disposed between the base layer 1 and the pigment layer 2 of the thermal transfer ribbon of the present invention; the release layer 5 comprises wax, polyester resin, methacrylic resin, EVA resin and organic solvent; release layer 5 can help pigment layer 2 rendition, improves the rendition ability, prevents that pigment layer 2 from excessively bonding basic unit 1 when heating and leading to the problem that is difficult to the rendition.
In the above embodiment, preferably, the thickness of the release layer 5 is 0.05 to 0.5 μm; the thickness of the release layer 5 and the selection of the resin type can improve the scratch resistance and solvent resistance of the pattern after transfer printing.
In the above embodiment, it is preferable that the Tg of the methacrylic resin is >100 ℃.
In the above embodiment, preferably, the wax is one or more of carnauba wax, PE wax, and EVA wax.
The organic solvent in each layer is dried and volatilized in the following preparation process.
The preparation method of the thermal transfer printing resin carbon ribbon comprises the following steps:
respectively preparing solutions of the pigment layer 2, the adhesive layer 3 and the back coating layer 4; corona is applied to two side surfaces of the base layer 1; firstly, coating a solution of a back coating layer 4 on one side of a base layer 1 and drying, and then coating a solution of a pigment layer 2 on the other side of the base layer 1 and drying; the solution of the adhesion layer 3 is coated on the pigment layer 2 and dried.
The method comprises the following specific steps:
1) The solution of the pigment layer 2 is prepared by dissolving 20-60 parts of polymer resin, 3-10 parts of wax and 5-15 parts of pigment by using an organic solvent 2-butanone and toluene according to the parts by mass; the solution of the following layer 3 is prepared by dissolving 1-30 parts of resin in 75-85 parts of 2-butanone or toluene; the solution of the back coat layer 4 is prepared by mixing the components of the back coat layer 4.
2) Corona is applied to both side surfaces of the base layer 1.
3) The solution of the back coating layer 4 is applied on one side of the base layer 1, coated with a 200-250 line ceramic anilox roll using a gravure coater, and dried at 60-100 ℃.
4) Coating the pigment layer 2 on the other side of the base layer 1, coating with a 100-230 line ceramic anilox roller by a gravure coater, and drying at 60-100 deg.C.
5) The solution of the subsequent layer 3 is coated on the pigment layer 2, coated with a ceramic anilox roll of 200-250 lines, applied with a gravure coater, and dried at 60-100 ℃.
When the thermal transfer ribbon has the release layer 5, after step 3) is completed, the solution of the release layer 5 is coated on the other surface of the base layer 1 and dried, step 4) is performed, the pigment layer 1 is coated on the release layer 5, and then step 5) is performed continuously.
The preparation method has the characteristics of simple operation, low cost and high efficiency; the prepared thermal transfer ribbon can be suitable for base materials made of various materials and can be widely applied.
The technical solution of the present invention is illustrated by the following examples:
the invention provides specific formulations and thicknesses of the thermal transfer ribbon of examples 1 to 9; among them, examples 1 to 7 are thermal transfer carbon tapes not including the release layer 5, and examples 8 and 9 are thermal transfer carbon tapes including the release layer 5.
The base layer 1 of each example was a polyethylene terephthalate (PET) film.
The pigment layer 2 formulations and thicknesses for the examples are shown in table 1:
TABLE 1 parts by mass and thicknesses of the constituents of the pigment layer 2 of examples 1 to 9
The formulation and thickness of the adhesion layer 3 for each example are shown in table 2:
TABLE 2 parts by mass and thickness of each component of adhesive layer 3 in examples 1 to 9
The back coating 4 of each embodiment has the same formula, and comprises the following specific components in parts by weight:
150 parts of 2-butanone, 150 parts of toluene, 10 parts of polyurethane modified organic silicon resin, 8 parts of acrylic modified organic silicon resin, 4 parts of polyvinyl acetal resin, 4 parts of polyvinyl butyral resin, 1 part of isocyanate, 3 parts of talc, 2 parts of alumina, 2 parts of silica, 2 parts of leveling agent, 2 parts of dispersing agent and 2 parts of antistatic agent.
In each example, the thickness of the back coat layer 4 was 0.4 μm.
The preparation method of the solution of the back coating 4 is that firstly the polyurethane modified organic silicon resin, the acrylic acid modified organic silicon resin, the polyvinyl acetal resin and the polyvinyl butyral resin are added into the mixed solvent of 2-butanone and toluene to be dissolved, then the talc, the alumina, the silicon dioxide, the flatting agent, the dispersing agent and the antistatic agent are added and fully stirred and evenly mixed for 2 hours, then the isocyanate is added and stirred for 0.5 hour, and the solution of the back coating 4 is obtained.
The formulation and thickness of release layer 5 of examples 8 and 9 are shown in table 3:
table 3 parts by mass and thickness of each component of release layer 5 of examples 8 and 9
| Examples | 8 | 9 |
| Brazil wax | 0 | 1 |
| |
1 | 1 |
| |
2 | 1 |
| |
3 | 2 |
| (meth) |
2 | 1 |
| 2-butanone | 46 | 47 |
| Toluene | 46 | 47 |
| Thickness of | 0.2μm | 0.2μm |
According to the recipes of the above examples, thermal transfer carbon tapes of examples 1 to 9 were prepared by the method of the present invention, respectively, and the transfer effect of the carbon tape of each example on the transferred substrates of different materials was tested.
For comparative test of transfer effect, comparative example 1 not containing the adhesive layer 3 of the present invention and comparative example 2 containing only 15 parts of a single polyester resin in the adhesive layer 3 were also prepared.
In this test, using example 2 of the present invention in comparison with comparative examples 1 and 2, the patterns of the test were transferred to silver-coated paper and coated paper, respectively, and the same degree of scratching was performed.
And grading the scraped pattern, wherein the pattern is clear, the outline is complete and is marked as A, the pattern is recognizable as a whole, the outline is missing to a certain extent and is marked as B, and the pattern is unclear and cannot be recognized and is marked as C.
The results after scratching of example 2 and the transfer patterns of comparative examples 1 and 2 are shown in table 4:
table 4 rating of example 2 after scratching of transfer pattern with comparative examples 1 and 2
| Transfer effect of silver paper | Transfer effect of coated paper | |
| Example 2 | A | A |
| Comparative example 1 | C | C |
| Comparative example 2 | B | B |
Example 2 the pattern transferred on the silver-less paper is shown in fig. 3, and the pattern transferred on the coated paper is shown in fig. 4; comparative example 1 the pattern transferred on the silver-less paper is shown in fig. 5, and the pattern transferred on the coated paper is shown in fig. 6; comparative example 2 the pattern transferred on the silver-coated paper is shown in fig. 7, and the pattern transferred on the coated paper is shown in fig. 8.
Through tests, compared with comparative examples 1 and 2, the patterns transferred by the carbon belts of the above examples have better scratch resistance, better definition and complete lines on the base materials made of the materials.
For the solvent resistance test of the transferred pattern, comparative example 3 in which the pigment layer 2 contained only a single resin was also prepared.
Through testing, compared with the pattern transferred by the carbon ribbon of the comparative example 3, the pattern transferred by the carbon ribbon of each example has better solvent resistance effect after the pattern transferred by the alcohol solvent is treated.
In the description of the present invention, it should be noted that the terms "thickness", "upper", "one side", "the other side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "printing", "mounting" and "fixing" are to be interpreted broadly, and those skilled in the art can specifically understand the meaning of the above terms in the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (9)
1. A thermal transfer printing resin carbon ribbon for multi-type base materials comprises a base layer (1), wherein a back coating layer (4) and a pigment layer (2) are respectively arranged on two sides of the base layer (1), and the thermal transfer printing resin carbon ribbon is characterized in that a bonding layer (3) is further arranged on the pigment layer (2);
the adhesive layer (3) comprises resin, and the resin comprises 3 parts by mass of polyester resin, 9 parts by mass of aldehyde resin, 5 parts by mass of polyurethane and 3 parts by mass of methacrylic resin.
2. The thermal transfer resin ribbon for multi-type substrates according to claim 1, wherein the components of the adhesion layer (3) and the parts by mass of the components are 1-30 parts of resin and 75-85 parts of organic solvent.
3. The thermal transfer printing resin carbon ribbon for the multi-type base material according to claim 1 or 2, characterized in that the components of the pigment layer (2) and the parts by mass of the components are 20-60 parts of polymer resin, 3-10 parts of wax, 5-15 parts of pigment and 66-75 parts of organic solvent.
4. The thermal transfer printing resin carbon belt for multiple types of substrates as claimed in claim 3, wherein the components of the polymer resin and the parts by mass of the components are 50-70 parts of polyester resin, 5-20 parts of methacrylic resin, 3-10 parts of polyolefin resin, 5-10 parts of styrene resin and 10-15 parts of ethylene-vinyl acetate copolymer.
5. The thermal transfer resin ribbon for multi-type substrates according to claim 1 or 2, wherein the composition of the back coating layer (4) comprises one or more of polyurethane-modified silicone resin, acrylic-modified silicone resin, polyvinyl acetal-based resin, and polyvinyl butyral-based resin.
6. The thermal transfer resin ribbon for multi-type substrates according to claim 1 or 2, wherein the thickness of the base layer (1) is 4 to 10 μm, the thickness of the pigment layer 2 is 0.3 to 1.2 μm, the thickness of the adhesion layer 3 is 0.01 to 0.5 μm, and the thickness of the back coating layer 4 is 0.5 to 1.2 μm.
7. The thermal transfer resin ribbon for multiple types of substrates according to claim 1 or 2, wherein a release layer (5) is further disposed between the base layer (1) and the pigment layer (2);
the release layer (5) comprises, by mass, 3 parts of wax, 2-3 parts of polyester resin, 1-2 parts of methacrylic resin and 92-94 parts of organic solvent.
8. The thermal transfer resin ribbon for multi-type substrates according to claim 7, wherein the release layer (5) has a thickness of 0.05-0.5 μm.
9. A method for manufacturing a thermal transfer resin ribbon according to any one of claims 1 to 8, comprising the steps of:
respectively preparing solutions of the pigment layer (2), the adhesion layer (3) and the back coating layer (4);
corona is applied to two side faces of the base layer (1);
coating the solution of the back coating layer (4) on one side of the base layer (1) and drying, and coating the solution of the pigment layer (2) on the other side of the base layer (1) and drying;
and coating the solution of the adhesion layer (3) on the pigment layer (2) and drying.
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| CN114261220A (en) | 2022-04-01 |
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