The present invention relates to a preparation comprising a light stabilizer, its use for the production of a transfer medium, a process making the same, as well as a transfer medium and its use.

The present invention relates to a preparation comprising a light stabilizer, its use for the production of a transfer medium, a process making the same, as well as a transfer medium and its use.

Provided is, for example, a compound excellent in light fastness and storage stability. The compound is characterized by having a structure represented by the following formula (1) or (2).

##STR00001##

Provided is, for example, a compound excellent in light fastness and storage stability. The compound is characterized by having a structure represented by the following formula (1) or (2).

##STR00001##

An object of the present invention is to provide a compound exhibiting a cyan color having properties such as high chroma, high light fastness, and high solubility. The compound is represented by the following General Formula (1).

##STR00001##

In Formula (1), R.sub.1 R.sub.2 each independently represent a linear, branched, or cyclic alkyl group having 6 or more and 12 or fewer carbon atoms, R.sub.3 represents a 4-alkylphenyl group, a 4-halogenated phenyl group, or a 3-alkoxyphenyl group, R.sub.4 represents a linear, branched, or cyclic alkyl group having 1 or more and 8 or fewer carbon atoms, and R.sub.5 represents a linear, branched, or cyclic alkyl group having 1 or more and 8 or fewer carbon atoms or a benzyl group.

The present invention relates to a preparation comprising a light stabilizer, its use for the production of a transfer medium, a process making the same, as well as a transfer medium and its use.

The present invention relates to a preparation comprising a light stabilizer, its use for the production of a transfer medium, a process making the same, as well as a transfer medium and its use.

In a thermal transfer recording sheet including a base material and a colorant layer, the colorant layer includes a yellow dye layer containing a yellow dye, a magenta dye layer containing a magenta dye, and a cyan dye layer containing a cyan dye, and the cyan dye includes a compound represented by Formula (1a) or Formula (1b): ##STR00001##
where R.sub.1 to R.sub.7 are substituents, X.sup. is an anion, and the compound of Formula (1b) has at least one anionic substituent.

In a thermal transfer recording sheet including a base material and a colorant layer, the colorant layer includes a yellow dye layer containing a yellow dye, a magenta dye layer containing a magenta dye, and a cyan dye layer containing a cyan dye, and the cyan dye includes a compound represented by Formula (1a) or Formula (1b): ##STR00001##
where R.sub.1 to R.sub.7 are substituents, X.sup. is an anion, and the compound of Formula (1b) has at least one anionic substituent.

A thermal transfer sheet which can prevent a kick and a scumming, and can form a photographic tone color image of high quality with a continuous tone image by sublimation transfer; a coating liquid for colorant layer to be used for forming the colorant layer of this thermal transfer sheet; a method for manufacturing this thermal transfer sheet; and image forming method employing this thermal transfer sheet. The problem is solved by a thermal transfer sheet (1) in which at least a colorant layer (3) is layered on a substrate sheet (2), wherein the colorant layer (3) contains a predetermined solvent, a colorant (10x) dispersible in the predetermined solvent, a dispersant, and a binder resin, and the dispersant being one or more selected from the group consisting of polyether-based dispersants, graft type polymer dispersants, acryl-based block type polymer dispersants, urethane-based polymer dispersants and azo-based dispersants.