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Thermal transfer ribbon

A thermal transfer ribbon and transfer printing technology, which is applied in printing, printing devices, copying/marking methods, etc., can solve the problems of protective layer burrs, defects, resins that are difficult to combine durability and transfer adaptability, etc. Achieve the effect of suppressing burrs and defects

Active Publication Date: 2021-04-13
TOPPAN PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the configurations described in Patent Documents 1 and 2, it is difficult for the resin used as the protective layer to have both durability and transferability.
As a result, when the protective layer is too tough and the foil machinability is poor, or when the base material and the resin layer are difficult to separate, the formed protective layer may have burrs or chips

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0202] In the above-mentioned base material with a heat-resistant lubricating layer, corona treatment is performed on the side where the heat-resistant lubricating layer is not provided. Next, using the ink for forming the yellow dye layer, the ink for forming the magenta dye layer, the ink for forming the cyan dye layer, and the ink A for forming the first layer, a yellow dye layer was sequentially formed on the substrate by the gravure coating method. , a magenta dye layer, a cyan dye layer, and the first layer. The dried film thickness of each dye layer was 0.7 μm, and the dried film thickness of the first layer was 0.5 μm.

[0203] Finally, the second layer was formed on the first layer by the gravure coating method using the ink for forming the second layer. The film thickness of the second layer after drying was 0.5 μm.

[0204] As described above, the thermal transfer ribbon of Example 1 was produced.

Embodiment 2

[0206] The thermal transfer ribbon of Example 2 was produced by the same procedure as Example 1 except having used the ink B for 1st layer formation instead of the ink A for 1st layer formation.

Embodiment 3

[0208] The thermal transfer ribbon of Example 3 was produced by the same procedure as Example 1 except having used the ink C for 1st layer formation instead of the ink A for 1st layer formation.

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Abstract

A transferable protective layer in a thermal transfer ribbon has a first layer formed upon a substrate and a second layer formed upon the first layer, said thermal transfer ribbon having a dye layer and the transferable protective layer repeatedly formed on one surface of the substrate. The first layer comprises: an acrylic resin (X) including a methyl methacrylate; an acrylic resin (Y) including a styrene-based resin; and a polyester resin (Z). The weight-average molecular weight of X is at least 120,000, the mass ratio between X and Y is 1:9-9:1, the mass of Z is 1%-3% of the total mass of X and Y.

Description

technical field [0001] The present invention relates to thermal transfer ribbons. This patent application claims the priority of Japanese Patent Application No. 2018-124785 filed on June 29, 2018, and cites its content. Background technique [0002] Thermal transfer ribbon refers to the ink ribbon used in thermal transfer printers, also known as thermal ribbon. A general thermal transfer ink ribbon has a configuration in which a thermal transfer ink layer is provided on one surface of a substrate, and a heat-resistant lubricating layer (back coat layer) is provided on the other surface of the substrate. The ink in the thermal transfer ink layer is sublimated (sublimation transfer method) or melted (melt transfer method) by the heat generated by the thermal head of the printer, and transferred to the thermal transfer image-receiving sheet side. [0003] Corresponding to the high functionality of printers, the sublimation transfer method can easily form various images in ful...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/382B32B27/20B32B27/30B32B27/36
CPCB41M5/382B41M5/38264B41M5/38214B41M2205/30B41M2205/38B41M2205/40B41M2205/02B41M5/44B41M5/385B41M5/41
Inventor 本桥晃
Owner TOPPAN PRINTING CO LTD
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