摘要:
An aqueous black ink composition which enables the formation of an excellent black recorded image having extremely high ozone gas resistance and a neutral and achromatic color. The ink composition comprises: a dye which includes at least one compound represented by specific formula (1) or at least one tautomer or salt of the compound; a dye which includes at least one compound represented by specific formula (3) or at least one tautomer or salt of the compound; and a dye which includes at least one compound represented by specific formula (4) or at least one tautomer or salt of the compound.
摘要:
A dichroic dye represented by the formula (I) or (II): ##STR1## wherein the substituents are as described in the specification. The dichroic dyes (I) and (II) exhibit excellent dichroism and can be prepared from 2,2'-ditrifluoromethylbenzidine having no toxicity, such as mutagenicity.
摘要:
The invention relates to light-polarizing films based on water-soluble organic polymers, more particularly polyvinyl alcohol (PVAL), which contain one or more dichroic bis-, tris- or tetrakis-azo dyes.
摘要:
The present invention relates to a photosensitive member containing a specific azo compound for a charge generating material represented by the following general formula (I); ##STR1## wherein A represents an aromatic hydrocarbon group or a heterocyclic group, which may be bonded through a bonding group; R.sub.1 and R.sub.2 are independently selected from the group consisting of hydrogen, a halogen atom, an alkyl group which may have a substitutent, an aralkyl group which may have a substitutent, an aryl group which may have a substituent, a condensed poly-cyclic group which may have a substitutent and a hetero-cyclic group which may have a substitutent; R.sub.1 and R.sub.2 may combinedly form a cyclic ring; and n represents an integer of 1, 2, 3, or 4, which is improved in photosensitive properties, in particular, sensitivity.
摘要翻译:本发明涉及含有下列通式(I)表示的电荷产生材料的特定偶氮化合物的光敏元件; 其中A表示可以通过键合基团键合的芳族烃基或杂环基; R 1和R 2独立地选自氢,卤素原子,可具有取代基的烷基,可具有取代基的芳烷基,可具有取代基的芳基,缩合多环基 其可以具有可以具有取代基的取代基和杂环基团; R1和R2可以组合形成环状环; 并且n表示1,2,3或4的整数,这在光敏性,特别是灵敏度方面得到改善。