摘要:
Azo dyestuffs of the formula ##SPC1##Wherein A stands for the residue of the diazo component, R stands for hydrogen or methyl, R.sub.1 is a non-ionic substituent, M is a number from 0 to 2, R.sub.2 stands for hydrogen or for an aliphatic, araliphatic, or aromatic radical, R.sub.3 and R.sub.4 are independently selected from the group consisting of hydrogen, alkyl, alkoxy methyl, aryl, carboxy, carboalkoxy, said dyestuff being free of sulphonic acid groups and being adapted for use in dyeing and printing synthetic fiber materials. The quaternary salts of the dyestuffs are also adapted for use in such dyeing and printing.
摘要:
The present invention relates to a dye mixture comprising as component (A) at least one dye of formula as component (B) at least one dye of formula wherein the substituents R1, R2, R3 and R4 are as defined in claim 1, and to the use of that mixture in the dyeing or printing of semi-synthetic or synthetic hydrophobic fiber materials.
摘要:
Disclosed are novel azo dyes of the structureX--N.dbd.N--C'wherein X represents the diazonium component comprising phenyl or a heterocyclic group commonly used in azo dyes and which is substituted by one or more fluorinated carboxylic or sulphonic ester groups. Additionally, X may be substituted by any of the groups commonly used in diazonium components such as nitro, cyano, halogen and the like. C' represents an aniline, tetrahydroquinoline or benzomorpholine coupler of the type commonly used in azo dyes. The dyes can be used in both the dyeing and heat transfer printing of textiles, are surprisingly bathochromic in shade, exhibit a good balance of properties such as light, crock, wash, and gas fastness, leveling, pH stability, and dyeability, and have unexpected thermal and hydrolytic stability as compared for example, to the hydrogen analogues. The dyes have particular utility on polyester fibers especially as regards lightfastness.
摘要:
The present invention relates to an electrode layer comprising a porous film made of oxide semiconductor fine particles sensitized with a methine dye having a counter anion capable of absorbing electromagnetic radiation having a wavelength in the range of from 400 nm to 1000 nm. Moreover the present invention relates to a photoelectric conversion device comprising said electrode layer, a dye sensitized solar cell comprising said photoelectric conversion device, an organic electronic device comprising said photoelectric conversion device and to novel methine dyes having a counter anion capable of absorbing electromagnetic radiation having a wavelength in the range of from 400 nm to 1000 nm.
摘要:
Disclosed are azo compounds having the formula ##STR1## in which R.sup.4 is straight or branched lower alkylene, Z is 1-3 groups selected from such heteroatom groups as --OH, lower alkanoyloxy, lower alkoxy, lower alkoxycarbonyl, lower alkoxyalkoxy, mono- or dialkylamino, --CN, carbamoyl, formamide, lower alkyl substituted carbamoyl, lower alkoxycarbonylamino, lower alkanoylamino, hydroxy substituted lower alkoxy, halogen, lower alkylthio, lower alkylsulfonyl, and various heterocyclic groups such as furyl and pyrrolidono, R is selected from straight or branched lower alkyl, phenyl and phenyl substituted with straight or branched lower alkyl, halogen, or straight or branched lower alkoxy, R.sup.2 is hydrogen or lower alkyl, and A is an aniline, tetrahydroquinoline, or benzomorpholine coupler component which may be substituted with a wide variety of groups. These azo compounds produce red to blue shades on polyamide, polyester and cellulose acetate fibers and exhibit markedly improved properties such as fastness and dyeability, particularly on synthetic polyamide fibers.