The invention relates to a process for printing cellulose textile fibre material or cellulose/polyester mixed textile fibre material, characterised in that the fibre material is treated with a printing paste or printing ink containing a disperse dye of the formula

##STR00001##

wherein
R.sub.1-R.sub.3 are each independently of the other hydrogen, halogen, C.sub.1-C.sub.8-alkyl or C.sub.1-C.sub.8-alkoxy,
R.sub.4 denotes hydrogen, C.sub.1-C.sub.8-alkyl or a group of the formula SO.sub.2NR.sub.6R.sub.7,
wherein R.sub.6 and R.sub.7 each independently of the other denote hydrogen,
C.sub.1-C.sub.8-alkyl which is unsubstituted or substituted by hydroxy, halogen, C.sub.1-C.sub.8-alkoxy or C.sub.6-C.sub.24aryl, or
C.sub.6-C.sub.30aralkyl which is unsubstituted or substituted by hydroxy, C.sub.1-C.sub.8alkyl, C.sub.1-C.sub.8alkoxy or halogen,
R.sub.5 represents hydrogen, C.sub.1-C.sub.8-alkyl or a radical of the formula

##STR00002##

wherein R.sub.1-R.sub.4 are as defined above.

The invention provides an anthracene-based organic dye and a preparation method thereof. The organic dye provided by the invention has a structure of formula (I) or formula (II), wherein R.sub.a, R.sub.b, and R.sub.2-1 to R.sub.2-4 are as defined herein. The organic dye provided by the invention is obtained by modifying an anthracene with R.sub.a and R.sub.b or modifying anthracene-based groups decorated with an aryl group or a heteroaryl group with R.sub.a and R.sub.b, thereby the power conversion efficiency of a dye sensitized solar cell is significantly improved when the organic dye prepared according to the present invention is applied in a dye-sensitized solar cell. Furthermore, the preparation method of the organic dye according to the present invention is quite simple together with abundant raw materials and low cost, making it possible to be commercialized.

Disclosed is a color material dispersion liquid for a color filter, the dispersion liquid being capable of forming a high-luminance coating film with excellent light resistance; a color resin composition for a color filter, the composition being capable of forming a high-luminance coating film with excellent light resistance; a color material that has, while it can form a high-luminance coating film, excellent light resistance; a high-contrast, high-luminance color filter; a liquid crystal display device including the color filter; and a light-emitting display device including the color filter. The color material dispersion liquid for a color filter, includes: (A) a color material, (B) a dispersant and (C) a solvent, wherein the color material (A) contains a cerium lake color material of an acid dye.

Disclosed is a color material dispersion liquid for a color filter, the dispersion liquid being capable of forming a high-luminance coating film with excellent light resistance; a color resin composition for a color filter, the composition being capable of forming a high-luminance coating film with excellent light resistance; a color material that has, while it can form a high-luminance coating film, excellent light resistance; a high-contrast, high-luminance color filter; a liquid crystal display device including the color filter; and a light-emitting display device including the color filter. The color material dispersion liquid for a color filter, includes: (A) a color material, (B) a dispersant and (C) a solvent, wherein the color material (A) contains a cerium lake color material of an acid dye.

The present invention relates to a coloring resin composition exhibiting pleochroism comprising 100 parts by weight of a transparent thermoplastic resin (A); 0.01 to 0.03 parts by weight of a dye for coloring a resin (B) which is one selected from the group consisting of an azo-based dye (b1), an anthraquinone-based dye (b2), and a methine dye (b3); and 0.1 to 0.3 parts by weight of a functional black dye (C) obtained by mixing an anthraquinone-based dye (c1) and a perinone-based dye (c2). A resin molded article manufactured by the coloring resin composition exhibiting pleochroism of the present invention is characterized by exhibiting different colors of light according to thicknesses although the resin molded article is irradiated with light sources in a single wavelength.

The invention provides an anthracene-based organic dye and a preparation method thereof. The organic dye provided by the invention has a structure of formula (I) or formula (II), wherein R.sub.a, R.sub.b, and R.sub.2-1 to R.sub.2-4 are as defined herein. The organic dye provided by the invention is obtained by modifying an anthracene with R.sub.a and R.sub.b or modifying anthracene-based groups decorated with an aryl group or a heteroaryl group with R.sub.a and R.sub.b, thereby the power conversion efficiency of a dye sensitized solar cell is significantly improved when the organic dye prepared according to the present invention is applied in a dye-sensitized solar cell. Furthermore, the preparation method of the organic dye according to the present invention is quite simple together with abundant raw materials and low cost, making it possible to be commercialized.

Dyed articles, such as sutures, and methods for making the same by treating with a supercritical liquid are disclosed. The articles may be made at least partially, if not entirely, from ultra-high molecular weight polyethylene (UHMWPE). The dye may be D&C Violet #2.

The present invention relates to a coloring resin composition exhibiting pleochroism comprising 100 parts by weight of a transparent thermoplastic resin (A); 0.01 to 0.03 parts by weight of a dye for coloring a resin (B) which is one selected from the group consisting of an azo-based dye (b1), an anthraquinone-based dye (b2), and a methine dye (b3); and 0.1 to 0.3 parts by weight of a functional black dye (C) obtained by mixing an anthraquinone-based dye (c1) and a perinone-based dye (c2). A resin molded article manufactured by the coloring resin composition exhibiting pleochroism of the present invention is characterized by exhibiting different colors of light according to thicknesses although the resin molded article is irradiated with light sources in a single wavelength.

The present invention relates to a coloring resin composition exhibiting pleochroism comprising 100 parts by weight of a transparent thermoplastic resin (A); 0.01 to 0.03 parts by weight of a dye for coloring a resin (B) which is one selected from the group consisting of an azo-based dye (b1), an anthraquinone-based dye (b2), and a methine dye (b3); and 0.1 to 0.3 parts by weight of a functional black dye (C) obtained by mixing an anthraquinone-based dye (c1) and a perinone-based dye (c2). A resin molded article manufactured by the coloring resin composition exhibiting pleochroism of the present invention is characterized by exhibiting different colors of light according to thicknesses although the resin molded article is irradiated with light sources in a single wavelength.

The present disclosure relates generally to multimeric dyes, colored dielectric polymer materials, methods of making them and uses thereof. In particular, the application concerns a colored dielectric polymer material comprising a multimeric dye with structure

##STR00001##

wherein each D is independently a chromophoric unit; each L is independently absent or is a linking group comprising no more than 10 atoms in length as measured in the shortest path from D to A; A is a bridging group; and n is an integer in the range of 1 to 3.