摘要:
Anthraquinone dyes of the formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 independently of one another are hydrogen or are substituted or unsubstituted C.sub.1 -C.sub.12 alkyl, X.sub.1 and X.sub.2 independently of one another are chlorine or fluorine, B.sub.1 is a C.sub.2 -C.sub.12 alkylene radical which is unsubstituted or substituted by hydroxyl, sulfo or sulfato and is uninterrupted or is interrupted by oxygen; or is a cyclohexylene radical, C.sub.1 -C.sub.4 alkylene-cyclohexylene radical, cyclohexylene-C.sub.1 -C.sub.4 alkylene radical, C.sub.1 -C.sub.4 alkylene-cyclohexylene-C.sub.1 -C.sub.4 alkylene radical or cyclohexylene-methylene-cyclohexylene radical which is unsubstituted or is substituted in the cyclohexylene ring by C.sub.1 -C.sub.4 alkyl; or is a C.sub.1 -C.sub.4 alkylene-phenylene radical, phenylene-C.sub.1 -C.sub.4 alkylene radical or C.sub.1 -C.sub.4 alkylene-phenylene-C.sub.1 -C.sub.4 alkylene radical which is unsubstituted or is substituted in the phenylene ring by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkanoylamino, sulfo, halogen or carboxyl, B.sub.2 is an aromatic bridge member, Y is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.12 alkyl, or a radical of the benzene or naphthalene series, and m is the number 0 or 1, with the proviso that, if m is the number 0, the radical Y contains a fibre-reactive group with the formula ##STR2## in which Hal is halogen and R' is hydrogen or C.sub.1 -C.sub.4 alkyl, are particularly suitable for the dyeing or printing of cellulosic fibre materials or natural or synthetic polyamide fibre materials, with a high dyeing yield, and give dyeings and prints having good fastness properties.
摘要:
Compounds of the formula ##STR1## in which the variables are as defined in the claims, and which are suitable as fibre-reactive dyes for dyeing and printing widely varying fibre materials, are described.
摘要:
A boundary-layer microphone may obtain a frequency independent, hemispherical directional characteristic with a high tonal quality. The geometrical configuration of the mounting plate and the installed location of the membrane within the surface of the mounting plate are chosen so that a flat frequency response is obtained at the installed location of the membrane, i.e., the superposition of the incident primary sound field on the secondary sound field created by diffraction will not cause any deviation from a flat frequency response and a smooth, hemispherical polar pattern. The mounting plate may be triangular. The membrane may be installed in the vicinity of the center of gravity of a scalene triangle.
摘要:
An overcurrent trip system including a rectifier which derives its current from current carrying lines to be protected and a voltage regulator for controlling the rectified voltage. The trip network of the system responds to a overcurrent condition by outputting a signal to the regulator for increasing output voltage, which in turn effects tripping of a circuit breaker.