Abstract

2 fluid and an intermediate thereof. The reactive disperse dye has a longer alkane-chain bridging group between a chromophoric parent structure and an active group of the dye, which effectively promotes the donating-withdrawing effect on the electron cloud in the conjugated system, enhances the hyperchromic effect, effectively reduce the influence of the active group itself and its reaction on the dye coloring system, improves the color and stability against acid and alkali of the dye, and facilitate the improvement of the compatibility of the dye with supercritical fluid and the dyeing performance for natural fibers as well. The invention also discloses an intermediate of the reactive disperse dye, and a method for preparing the reactive disperse dye.

IPC Classes  ?

• C09B 62/085 - Monoazo dyes
• D06P 1/382 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using reactive dyes with a reactive group directly attached to the heterocyclic group
• C07C 245/08 - Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings with the two nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings, e.g. azobenzene
• C07D 251/44 - One nitrogen atom with halogen atoms attached to the two other ring carbon atoms
• D06P 1/94 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using dyes dissolved in solvents which are in the supercritical state

Abstract

22 fluid, and an intermediate thereof. A long alkane chain bridge group is comprised between a dye parent chromophore of the reactive disperse dye and an active group, the supply-absorption effect of an electron cloud of a conjugated system can be effectively promoted, the bathochromic effect is enhanced, the influences of the active group and a reaction thereof on a dye chromophore system are efficiently reduced, and the acid-alkali resistance stability of the dye color is improved. In addition, the compatibility between the dye and the supercritical fluid, and the dying performance on the natural fiber are also advantageously improved. Also disclosed are an intermediate of the reactive disperse dye, and a preparation method for the reactive disperse dye.

IPC Classes  ?

• C09B 62/085 - Monoazo dyes
• C07C 245/20 - Diazonium compounds
• C07C 245/06 - Azo compounds, i.e. compounds having the free valencies of —N=N— groups attached to different atoms, e.g. diazohydroxides with nitrogen atoms of azo groups bound to carbon atoms of six-membered aromatic rings
• D06P 1/18 - Azo dyes
• D06P 1/382 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using reactive dyes with a reactive group directly attached to the heterocyclic group

Abstract

Disclosed is a production method for a shuttle-woven air-storing light and warm fabric, the fabric design using a plain weave basic structure, and using an additional warp or weft as a floating line to set on the cloth bottom, using a plain crepe weave; by means of the design of the fabric structure, using different yarn shrinkage differences to increase the air storage space, so that the warmth of the cloth is increased; using a colour multi-filament yarn as a fabric bottom yarn and increasing the warmth retention thereof by means of brushing; using elastic yarn to produce a crepe fabric, the crepe effect thereof depending on wet finishing or dyeing near boiling point, and using tenter shaping to retain the required deformation; during post-treatment, using a felting and fluffing process to produce a smooth plush, such that the fabric is bulky but not exposed on the cloth surface. The present method produces a cloth having a bulky structure and an air-storing effect, the cloth having excellent warmth retention and a lightweight style.

IPC Classes  ?

• D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used