Topic
Indanthrone blue
About: Indanthrone blue is a research topic. Over the lifetime, 9 publications have been published within this topic receiving 28 citations. The topic is also known as: Indanthrene & Vat Blue 4.
Papers
Patent•
17 Jan 1996
TL;DR: In this paper, the mixture of copper phthalocyanine group blue and indanthrone blue is used as a main component of the blue pigment to be included in the photosensitive resin.
Abstract: PROBLEM TO BE SOLVED: To provide a color filter, which can take a balance of the target color purity and quantity of light transmission, by mixing the copper phthalocyanine group blue with the indanthrone blue. SOLUTION: The mixture of copper phthalocyanine group blue and indanthrone blue is used as a main component of the blue pigment to be included in the photosensitive resin. Mixture ratio of the copper phthalocyanine group blue (a) and the indanthrone blue (b) is desirably set at (a):(b)=95:5-50:50. As the phthalocyanine group, α type non-crystal C.I. pigment blue 15:1 and C.I. pigment blue 15:2, in which crystal transference and crystal growth is hindered, is used. As the indanthrone blue to be mixed therewith, C.I. pigment blue 6 or the like is used. Blue color purity can be thereby improved.
9 citations
TL;DR: A series of new chromophores were synthesized which comprise carboximide and ureido auxochromic moieties attached to a perylene core as mentioned in this paper, which possesses a strong intramolecular push-pull effect as well as intermolecular hydrogen bonding.
6 citations
Patent•
15 Aug 1995
TL;DR: In this paper, a δ-indanthrone blue pigment having an average primary particle diameter in the range of 0.5 μm or less and having a chroma C* value of 20 or greater was described.
Abstract: A δ-indanthrone blue pigment having an average primary particle diameter in the range of 0.5 μm or less and having a chroma C* value of 20 or greater; a hue angle in the range of 274-283 when colorimetry is performed on a paint film made from a melamine alkyd paint in which the proportion of pigment in the solid portion is 9.6%; and containing δ-indanthrone blue pigment and titanium dioxide pigment in a ratio of 1 to 20 by weight.
5 citations
TL;DR: Comparison between the industrially applied preparation layers and the artistic paint layers applied by the heraldic painter was allowed, demonstrating a general delay of industrial materials into artist paints.
5 citations
Patent•
27 Sep 1996
TL;DR: In this paper, the authors proposed a method for producing an indanthrone blue pigment or a carbazole dioxazine violet pigment fine in particle sizes, homogeneous in particle shape and excellent in glossiness, coloring power and dispersibility without needing excessive time and energy on an industrial scale.
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an indanthrone blue pigment or a carbazole dioxazine violet pigment fine in particle sizes, homogeneous in particle shape and excellent in glossiness, coloring power and dispersibility without needing excessive time and energy on an industrial scale. SOLUTION: Coarse blocks of a crude indanthrone blue pigment or carbazole dioxazine violet pigment is crushed by a dry crusher to produce a pulverized crude pigment. The pulverized crude pigment is dispersed in water and/or an organic solvent. Subsequently, the suspension of the pigment in water and/or the organic solvent is finely pulverized in wet by a stirring bead mill, which is operated under the conditions of power density larger than 2.6kW per one litter of crushing space and an outer peripheral speed of the stirrer higher than 6.7m/sec in the presence of a crushing medium, to obtain the objective pigment. COPYRIGHT: (C)1997,JPO
4 citations
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2015 | 1 |
| 2003 | 1 |
| 2001 | 1 |
| 1996 | 3 |
| 1995 | 2 |