Reusable thermal transfer printing colored tape and preparation method thereof

[0021] Example 1

[0022] A thermal transfer ribbon that can be used twice is composed of a tape base and a high-temperature color layer and a low-temperature color layer coated on the tape base in sequence.

[0023] The types and parts by weight of raw materials used in the high-temperature chromatography and low-temperature chromatography are shown in the following table. Among them, the selected hydrogenated rosin resin has a softening point of 90°C, a melting point of paraffin wax of 60°C, and a softening point of phenolic resin of 110°C.

[0024]

[0025] The preparation method of the above-mentioned reusable thermal transfer ribbon comprises the following steps:

[0026] a) Take each raw material in proportion, dissolve the phenolic resin with a mixed solvent composed of toluene and methyl ethyl ketone at a volume of 1:1 (the amount of the mixed solvent is 7 times the weight of the phenolic resin) to obtain a resin solution, and mix the resin solution with phthalo Este

[0028] Example 2

[0029] A thermal transfer ribbon that can be used twice is composed of a tape base and a high-temperature color layer and a low-temperature color layer coated on the tape base in sequence.

[0030] The types and parts by weight of raw materials used in the high-temperature chromatography and low-temperature chromatography are shown in the following table. Among them, the selected hydrogenated rosin resin has a softening point of 105°C, a melting point of paraffin wax of 55°C, and a softening point of phenolic resin of 120°C.

[0031]

[0032] The preparation method of the above-mentioned reusable thermal transfer ribbon comprises the following steps:

[0033] a) Take each raw material in proportion, dissolve the phenolic resin with a mixed solvent composed of toluene and methyl ethyl ketone at a volume of 1:1 (the amount of the mixed solvent is 7 times the weight of the phenolic resin) to obtain a resin solution, and mix the resin solution with phthalo Est

[0035] Example 3

[0036] A thermal transfer ribbon that can be used twice is composed of a tape base and a high-temperature color layer and a low-temperature color layer coated on the tape base in sequence.

[0037] The types and parts by weight of raw materials used in the high-temperature chromatography and low-temperature chromatography are shown in the following table. Among them, the hydrogenated rosin resin selected has a softening point of 90°C, a melting point of paraffin wax of 65°C, and a softening point of phenolic resin of 100°C.

[0038]

[0039] The preparation method of the above-mentioned reusable thermal transfer ribbon comprises the following steps:

[0040] a) Take each raw material in proportion, dissolve the phenolic resin with a mixed solvent composed of toluene and methyl ethyl ketone at a volume of 1:1 (the amount of the mixed solvent is 7 times the weight of the phenolic resin) to obtain a resin solution, and mix the resin solution with phthalo Este