阅读说明：本技术 热转印色带及其制备方法 (Thermal transfer ribbon and preparation method thereof ) 是由 华育 于 2020-12-08 设计创作，主要内容包括：本发明属于打印墨带技术领域,具体涉及热转印色带的制备方法,在载体基膜一面上涂布背涂层后干燥,在载体基膜的另一面涂布底层,在底层上采用凹版涂布机涂布热熔油墨,获得热转印色带。本发明提供的热转印色带能够实现连续使用,并且打印效果完整清晰。本发明提供的TTR制备方法,具有现实可行性与社会效益,更便于建造现地化加工生产线,提高生产质量,涂布速度可有原来的100m/分增加到250m/分,产率提高2倍以上。(The invention belongs to the technical field of printing ink ribbons, and particularly relates to a preparation method of a thermal transfer ribbon. The thermal transfer ribbon provided by the invention can be continuously used, and the printing effect is complete and clear. The TTR preparation method provided by the invention has practical feasibility and social benefits, is more convenient to build an in-situ processing production line, improves the production quality, increases the coating speed from the original 100 m/min to 250 m/min, and improves the yield by more than 2 times.)

1. The preparation method of the thermal transfer ribbon is characterized by comprising the following steps:

s1, mixing and heating 20-30 parts by weight of resin, 5-20 parts by weight of paraffin, 10-30 parts by weight of dye and 1-3 parts by weight of accelerator into a molten state to obtain a molten substance;

s2, uniformly stirring and dispersing the molten material in the step S1, and then carrying out basket grinding to obtain the hot-melt ink;

s3, preparing a bottom layer by using wax emulsion or silicone grease;

s4, adding a solvent into organic silicon resin, and adding a curing agent to prepare a back coating with the concentration of 3-10%;

s5, coating the back coating in the step S4 on one side of the carrier basement membrane, and then drying, wherein the coating weight is 0.1-1 g/square meter;

s6, coating the bottom layer in the step S3 on the other side of the carrier base film, wherein the coating thickness is 0.1-0.2 microns;

s7, the hot-melt ink is coated on the base layer in the step S6 by a gravure coater in an amount of 1 g/m to obtain a thermal transfer ribbon.

2. The method of manufacturing a thermal transfer ribbon according to claim 1, wherein in step S1, the resin is a chlorinated polyvinyl chloride resin, an epoxy resin, a polyamide resin, a petroleum resin, a polyketone resin, or polystyrene.

3. The method for preparing a thermal transfer ribbon according to claim 1, wherein in step S1, the accelerator includes a dispersant, a leveling agent, a defoaming agent, an anti-settling agent, and an adhesion promoter, and the weight ratio of the dispersant, the leveling agent, the defoaming agent, the anti-settling agent, and the adhesion promoter is 2:1:4: 5.

4. The method of manufacturing a thermal transfer ribbon according to claim 1, wherein in step S3, the wax emulsion is palm wax or montan wax emulsion.

5. The method of manufacturing a thermal transfer ribbon according to claim 1, wherein in step S4, the solvent is butanone, cyclohexanone, or ethyl acetate.

6. The method of manufacturing a thermal transfer ribbon according to claim 1, wherein in step S5, the support base film is a high temperature resistant polyester film, and the thickness of the support base film is 3 to 6 μm.

7. The method of manufacturing a thermal transfer ribbon according to claim 1, wherein the drying in step S5 is hot air drying at 100 ℃ or higher.

8. A thermal transfer ribbon prepared according to the method of any one of claims 1-7.

Technical Field

The invention belongs to the technical field of printing ink ribbons, and particularly relates to a thermal transfer ribbon and a preparation method thereof.

Background

The Thermal Transfer technology is to Transfer the carbon powder coating on the TTR to paper or other materials in a heating mode by using a Transfer Ribbon (TTR) through a working principle similar to a printing head of a fax machine, and because the coating substance on the TTR can be selected according to requirements, stronger adhesive force is generated, and the printed handwriting can be better ensured not to be influenced by the outside due to the selection of a printing medium. How to heat the label can be controlled by a computer, and various software specially used for printing the label is developed at present, so that the label printing machine is very convenient for a user. The basic composition of TTR: a) thin and strong dacron or other high-density material tape base; b) the bottom coating on the front surface of the tape base ensures the uniform ink color and the complete transfer of the ink color during printing; c) a wax or resin based ink layer; d) the outer coating on the ink color layer is used for protecting the ink color and enhancing the adhesiveness with a printed material during printing; e) the back coating with the base plays roles in static electricity prevention, heat equalization and friction reduction, can protect the printing head and prolongs the service life. In the prior art, in the process of preparing TTR, silk rod printing is adopted, the production speed is slow, and in-situ production and manufacturing with practical feasibility cannot be realized.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a preparation method of a thermal transfer ribbon, aiming at solving the technical problems that in the prior art, in the process of preparing TTR, silk rod printing is adopted, the production speed is slow, and the in-situ production and manufacture with practical feasibility cannot be realized. The invention also provides a thermal transfer ribbon prepared by the method.

The invention provides a preparation method of a thermal transfer ribbon, which has the following specific technical scheme:

the preparation method of the thermal transfer ribbon comprises the following steps:

s1, mixing and heating 20-30 parts by weight of resin, 5-20 parts by weight of paraffin, 10-30 parts by weight of dye and 1-3 parts by weight of accelerator into a molten state to obtain a molten substance;

s2, uniformly stirring and dispersing the molten material in the step S1, and then carrying out basket grinding to obtain the hot-melt ink;

s3, preparing a bottom layer by using wax emulsion or silicone grease;

s4, adding a solvent into organic silicon resin, and adding a curing agent to prepare a back coating with the concentration of 3-10%;

s5, coating the back coating in the step S4 on one side of the carrier basement membrane, and then drying, wherein the coating weight is 0.1-1 g/square meter;

s6, coating the bottom layer in the step S3 on the other side of the carrier base film, wherein the coating thickness is 0.1-0.2 microns;

s7, the hot-melt ink is coated on the base layer in the step S6 by a gravure coater in an amount of 1 g/m to obtain a thermal transfer ribbon.

In certain embodiments, in step S1, the resin is a chlorinated polyvinyl chloride resin, an epoxy resin, a polyamide resin, a petroleum resin, a polyketone resin, or polystyrene.

In certain embodiments, in step S1, the accelerator includes a dispersant, a leveling agent, a defoaming agent, an anti-settling agent, and an adhesion promoter, and the weight ratio of the dispersant, the leveling agent, the defoaming agent, the anti-settling agent, and the adhesion promoter is 2:1:4: 5.

In certain embodiments, in step S3, the wax emulsion is palm wax or montan wax emulsion.

In certain embodiments, in step S4, the solvent is butanone, cyclohexanone, or ethyl acetate.

In certain embodiments, in step S5, the carrier base film is a high temperature resistant polyester film, the carrier base film having a thickness of 3 to 6 microns.

In certain embodiments, the drying in step S5 is a hot air flow drying above 100 ℃.

The invention also provides the thermal transfer printing color ribbon prepared by the method.

The invention has the following beneficial effects: the thermal transfer ribbon provided by the invention can be continuously used, and the printing effect is complete and clear. The TTR preparation method provided by the invention has practical feasibility and social benefits, is more convenient for building an in-situ processing production line, improves the production quality and effectively improves the yield.

Drawings

Fig. 1 is a flow chart of a method for manufacturing a thermal transfer ribbon according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings 1 in conjunction with specific embodiments.

Example 1

The specific technical scheme of the preparation method of the thermal transfer ribbon provided by the embodiment is as follows:

the preparation method of the thermal transfer ribbon comprises the following steps:

s1, mixing and heating 20 parts by weight of chlorinated polyvinyl chloride resin, 5 parts by weight of paraffin, 10 parts by weight of dye and 1 part by weight of accelerator (dispersing agent, leveling agent, defoaming agent, anti-settling agent and adhesion promoter are mixed according to the weight ratio of 2:1:4: 5) to be in a molten state to obtain a molten substance;

s2, uniformly stirring and dispersing the molten material in the step S1, and then carrying out basket grinding to obtain the hot-melt ink;

s3, preparing a bottom layer by using palm wax emulsion;

s4, adding ethyl acetate into organic silicon resin, adding p-hydroxybenzene sulfonic acid, and preparing a back coating with the concentration of 3%;

s5, coating the back coating in the step S4 on one side of the high temperature resistant polyester film, and drying by hot air flow with the temperature of more than 100 ℃, wherein the coating weight is 0.1 g/square meter;

s6, coating the bottom layer in the step S3 on the other side of the high-temperature resistant polyester film, wherein the coating thickness is 0.1 micron;

s7, the hot-melt ink is coated on the base layer in the step S6 by a gravure coater in an amount of 1 g/m to obtain a thermal transfer ribbon.

The embodiment also provides the thermal transfer ribbon prepared by the method.

Example 2

The specific technical scheme of the preparation method of the thermal transfer ribbon provided by the embodiment is as follows:

the preparation method of the thermal transfer ribbon comprises the following steps:

s1, mixing and heating 30 parts by weight of epoxy resin, 20 parts by weight of paraffin, 30 parts by weight of dye and 3 parts by weight of accelerator (dispersing agent, leveling agent, defoaming agent, anti-settling agent and adhesion promoter are mixed according to the weight ratio of 2:1:4: 5) to form a molten state, and obtaining a molten substance;

s2, uniformly stirring and dispersing the molten material in the step S1, and then carrying out basket grinding to obtain the hot-melt ink;

s3, preparing a bottom layer by adopting montan wax emulsion;

s4, adding butanone and p-hydroxybenzene sulfonic acid into organic silicon resin to prepare a back coating with the concentration of 10%;

s5, coating the back coating in the step S4 on one side of the high temperature resistant polyester film, and drying by hot air flow with the temperature of more than 100 ℃, wherein the coating weight is 1 g/square meter;

s6, coating the bottom layer in the step S3 on the other side of the high-temperature resistant polyester film, wherein the coating thickness is 0.2 microns;

s7, the hot-melt ink is coated on the base layer in the step S6 by a gravure coater in an amount of 1 g/m to obtain a thermal transfer ribbon.

The embodiment also provides the thermal transfer ribbon prepared by the method.

Example 3

The specific technical scheme of the preparation method of the thermal transfer ribbon provided by the embodiment is as follows:

the preparation method of the thermal transfer ribbon comprises the following steps:

s1, mixing and heating 15 parts by weight of resin polyamide resin, 15 parts by weight of paraffin, 20 parts by weight of dye and 2 parts by weight of accelerator (dispersing agent, leveling agent, defoaming agent, anti-settling agent and adhesion promoter are mixed according to the weight ratio of 2:1:4: 5) to form a molten state, and obtaining a molten substance;

s2, uniformly stirring and dispersing the molten material in the step S1, and then carrying out basket grinding to obtain the hot-melt ink;

s3, preparing a bottom layer by adopting silicone grease;

s4, adding cyclohexanone serving as a solvent into organic silicon resin, and adding p-hydroxybenzene sulfonic acid to prepare a back coating with the concentration of 3-10%;

s5, coating the back coating in the step S4 on one side of the high temperature resistant polyester film, and drying by hot air flow with the temperature of more than 100 ℃, wherein the coating weight is 0.5 g/square meter;

s6, coating the bottom layer in the step S3 on the other side of the high-temperature resistant polyester film, wherein the coating thickness is 0.15 micron;

s7, the hot-melt ink is coated on the base layer in the step S6 by a gravure coater in an amount of 1 g/m to obtain a thermal transfer ribbon.

The embodiment also provides the thermal transfer ribbon prepared by the method.

In conclusion, the thermal transfer ribbon provided by the invention can be continuously used, and the printing effect is complete and clear. The TTR preparation method provided by the invention has practical feasibility and social benefits, is more convenient to build an in-situ processing production line, improves the production quality, increases the coating speed from the original 100 m/min to 250 m/min, and improves the yield by more than 2 times.

The above description is only for the purpose of illustrating preferred embodiments of the present invention and is not to be construed as limiting the invention, and the present invention is not limited to the above examples, and those skilled in the art should also be able to make various changes, modifications, additions or substitutions within the spirit and scope of the present invention.