摘要:
A thermal transfer printing sheet comprising a substrate having a coating comprising a dye of the formula:D--AwhereinD is a cationic chromophore andA is a soft anionic base,suitable for use in a thermal transfer printing process.
摘要:
Disazo dyestuffs of the formula: ##SPC1##Wherein B represents a 1,4-phenylene radical which may be substituted by CH.sub.3, OCH.sub.3, NHCOCH.sub.3 or NHCONH.sub.2 or a 1,4-naphthylene radical which may be substituted by OCH.sub.3 or SO.sub.3 H, and Z represents NH.sub.2 or OCH.sub.3, and their manufacture by conventional condensation methods. These dyes are brown cellulose-reactive dyes, (including bluish-brown, orange-brown and reddish-brown shades) which exhaust well on to the fibre from saline dyebaths with high fixation of the absorbed dye, so that deep shades of high tinctorial strength can be obtained; the resulting shades have excellent fastness to light and to washing tests, in which latter there is a remarkably low level of staining, and above all, excellent fastness to bleach treatments.
摘要:
A method of applying a moisture barrier seal to a fiber optic coil includes mounting a fiber optic coil in a vacuum deposition chamber, so as to expose a large exterior surface area of the fiber optic coil to an interior portion of the deposition chamber. The method further includes reducing the air pressure within the chamber to a value that is less than ambient pressure outside of the chamber. The method further includes introducing a vapor form of a non-porous material, preferably parylene, into the chamber. The vapor form of the non-porous material changes into a solid state upon contact with the fiber optic coil, so as to form a conformal coat on the fiber optic coil.
摘要:
Substituted β-lactones (oxetanones) corresponding to the formula I, wherein R1, R2 and n have the meanings given in the specification, and pharmaceutical compositions which contain these compounds and have a pancreatic lipase-inhibiting action, as well as a process for the preparation of the compounds of Formula I and intermediate products of this process.
摘要:
An optical fiber coil assembly includes an optical fiber wound about an axis of rotation. A first section of the fiber, from the intermediate point to the first end, is wound around a bobbin in a first direction about the axis of rotation. A second section of the fiber, from the intermediate point to the second end, is wound, at least partially, around the bobbin in a second direction opposite the first direction. A reversal of the fiber, however, allows an end portion of the second section to be wound around the bobbin in the first direction, along with an end portion of the first section. The coil assembly further includes an epoxy zipper disposed between the first and second sections of the fiber, forming a fiber lead pair. An epoxy bridge disposed between the fiber lead pair and the bobbin secures the fiber lead pair to the bobbin.
摘要:
The invention relates to polyurethanes, inks comprising polyurethanes and their use in ink jet printing where the polyurethane comprises a colored water-dissipatable polyurethane obtainable by chain-terminating a polyurethane prepolymer with a colorant.
摘要:
Phthalocyanine compounds substituted by from 1 to 8 substituents of formula (—O—R—O—) wherein R is a 1,2-arylene group are provided. Preferably, the phthalocyanine compounds are substituted by catechol. Additional substituents which may be present include hydrocarlyloxy, hydrocarbylthio, halogen and sulphonic acid or a salt thereof.
摘要:
An ink composition comprising: (i) a dye of Formula (1) or a salt thereof: ##STR1## wherein: A is optionally substituted phenylene; B and E each independently is optionally substituted phenylene or optionally substituted naphthylene; D is a coupling component; each R.sup.1 independently is H or optionally substituted alkyl; X is a labile or non-labile atom or group; each Z independently is --OR.sup.3, --SR.sup.3, --NR.sup.4 R.sup.5 or --Y--SO.sub.3 H in which Y is O or S; and R.sup.3, R.sup.4 and R.sup.5 each independently is H, optionally substituted alkyl, optionally substituted alkenyl, cycloalkyl, optionally substituted aralkyl, optionally substituted aryl or R.sup.4 or R.sup.5 together with the nitrogen atom to which they are attached form a 5 or 6 membered ring; and (ii) a medium comprising a low melting point solid, an organic solvent, or a mixture of water and one or more water-soluble organic solvent(s). Also claimed is a process for ink jet printing using the inks, a process for ink jet printing of textiles using the inks and a toner containing a dye with at least one group of Formula (1).
摘要:
A monoazo compound of the Formula (1) and salts thereof: ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3, independently, represents H, halogen, alkyl, alkoxy or acylamino, or R.sup.1 and R.sup.2 together form an optionally substituted benzo ring; L.sup.1 represents --OR.sup.4 , --SR.sub.4 or --NR.sup.5 R.sup.6 wherein each of R.sup.4, R.sup.5 and R.sup.6, independently, represents H or optionally substituted hydrocarbyl or R.sup.5 and R.sup.6 together with the attached nitrogen atom form a 5- or 6-membered ring; and L.sup.2 represents a substituted amino group selected from; ##STR2## in which either R.sup.7 is H and R.sup.8 and R.sup.9 together represent --CH.sub.2 CH.sub.2 --or R.sup.9 is H and R.sup.7 and R.sup.8 together represent --CH.sub.2 --CH.sub.2 --, ##STR3## in which X represents an optionally substituted alkylene group containing 2 or more carbon atoms and each of R.sup.10 and R.sup.11, independently, represents H or optionally substituted hydrocarbyl, the compounds of Formula (1) being free from fiber-reactive groups and any carboxyl substituents present in the compounds being attached in the form of one or more residue of the following formulae: ##STR4## Also claimed are ink compositions comprising the above compound; a process for printing substrates with the ink compositions using an ink-jet printer; paper, project slides and textile materials printed with the ink compositions; and a process for coloration of textile materials with the ink compositions.
摘要:
A monoazo compound of the Formula (1) and salts thereof: ##STR1## wherein each of R.sup.1 and R.sup.2, independently, represents H, halogen, alkyl, alkoxy or acylamino; each of R.sup.3, R.sup.4 and R.sup.5, independently, represents H or optionally substituted hydrocarbyl other than groups comprising the residue --A'NR.sup.7 R.sup.8 wherein A represents an optionally substituted alkylene group containing 2 or more carbon atoms and each of R.sup.7 and R.sup.8, independently, represents H or optionally substituted hydrocarbyl or R.sup.7 and R.sup.8 together with the attached nitrogen atom form a 5- or 6-membered ring and R.sup.6 represents an optionally substituted hydrocarbyl group not comprising the residue --A--NR.sup.7 R.sup.8 wherein A, R.sup.7 and R.sup.8 are as defined above; or R.sup.3 and R.sup.4 together with the attached nitrogen atom and/or R.sup.5 and R.sup.6 together with the attached nitrogen atom form a 5- or 6-membered ring other than a piperazine ring, the compounds of Formula (1) being free from fibre-reactive groups and any carboxyl substituents present in the compounds being attached in the form of one or more residue of the following formulae: ##STR2## also claimed are ink compositions comprising the above compound; a process for printing substrates with the ink compositions using an ink-jet printer; paper, project slides and textile materials printed with the ink compositions; and a process for coloration of textile materials with the ink compositions.