摘要:
The liquid crystal composition of the present invention contains a compound represented by the following Formula (1) and a liquid crystal. In Formula (1), at least one among R1 to R7 is a liquid crystalline substituent, and those among R1 to R7 that are not a liquid crystalline substituent each independently represent a hydrogen atom or a substituent. X and Y each independently represent an alkyl group, a halogen atom, an alkoxy group, or an alkylthio group. Z represents an alkyl group having 3 or more carbon atoms, an acyl group, or an aryl group. A represents an oxygen atom, a sulfur atom, or a nitrogen atom. n represents 0 or 1. The liquid crystal device, reflection display material, and light modulating material of the invention contain the liquid crystal composition.
摘要:
The invention relates to a process for the dyeing and printing of polyester material in a weakly acid, neutral or alkaline solution of at least one altered dispersion dyestuff water-soluble at an intermediate stage and containing a carbacyl group which is bound by way of an oxygen atom, and which can be split off under the dyeing conditions, the said carbacyl group carrying at least one sulphonic acid or carboxylic acid group, to a process for the production of these dyestuffs water-soluble at an intermediate stage, as well as to new water-soluble dyestuffs. Compared with the conventional process of dispersion dyeing, this process offers certain definite advantages, namely, the dyestuffs need not be present as a dispersion, the complicated milling problems associated with dispersion dyestuffs are eliminated; no dispersing agents are required, which are mostly toxic and thus burden the effluent; and hence, furthermore, the troublesome foam problems normally occurring in large-scale dyeing plants are likewise avoided.
摘要:
Anthraquinone dyestuffs are dispersable dyestuffs having the formula
WHEREIN V represents a hydroxy group at one position and an amino group at the second position; X and Y represent halogen atoms; m and n represent integers from 0 - 3; and Z represents a hydrogen atom, a halogen atom or a methyl group substituted at a position adjacent the hydroxy groups in the molecule. The anthraquinone dyestuffs of this invention are prepared by reducing anthraquinone dyestuffs containing a nitro group and two hydroxy groups, and if necessary, further halogenating the products obtained.
IN WHICH A is hydrogen, chlorine, bromine or lower alkyl; R is alkylene of from 2 to 4 carbon atoms, vinylene, 1,2-benzene, 1,2cyclohexane, 1,8-naphthalene, or 1,2-cyclohex-4-ene; R'' is lower alkyl; and Y is hydrogen, hydroxy, chlorine, bromine, lower alkyl or lower alkoxy, are useful for dyeing synthetic, especially polyester, fibers.
摘要:
A SUBLIMATION TRANSFER DYEING METHOD WHICH IS CHARACTERIZED BY THE USE OF NOVEL AND IMPROVED COMPOUNDS OF THE GENERAL FORMULA:
1-((X,Y-PHENYL)-NH-),4-(HO-),(HO-)-ANTHRAQUINONE
IN WHICH X REPRESENTS A METHYL GROUP OR ETHYL GROUP AT ORTHO OR META POSITION WITH REGARD TO THE IMINO GROUP, AND Y REPRESENTS A HYDROGEN ATOM, METHYL GROUP, METHOXY GROUP, FLUORINE ATOM OR CHLORINE ATOM.
IN WHICH ONE X DENOTES A HYDROXY GROUP, THE OTHER X IS AN AMINO OR NITRO GROUP, AND R STANDS FOR A HYDROGEN ATOM OR A CHLORINE ATOM, AS WELL AS A PROCESS FOR THE PRODUCTION OF THESE DYESTUFFS CHARACTERISED IN THAT, 4,8-DINITRO-1,5-DIHYDROXY-ANTHRAQUINONE AND OR 4,5-DINITRO-1,8DIHYDROXY-ANTHRAQUINONE IS HEATED WITH ANILINES OF THE FORMULA
3-(F2-CH-),R-ANILINE
OPTICALLY IN THE PRESENCE OF INERT ORGANIC DILUENTS, AT TEMPERATURES OF ABOUT 100-200* C., AND THE NITRO GROUP CONTAINING RESULTANT DYESTUFFS ARE OPTIONALLY REDUCED IN KNOWN MANNER.