Yes 13, the black disperse dye composition according to the present invention is excellent in washing fastness, rubbing fastness, sublimation fastness and yellowing test.The present invention relates to a yellow disperse dye represented by the following formula (1); A red disperse dye represented by the following formula (2); And at least one blue disperse dye selected from blue disperse dyes represented by the following general formulas (3) to (5). We will try our best to response ASAP! As a result, spandex and polyester exhibited very different dyeing curves. 9 On the other hand, spandex fibers are excellent in dyeability for acid dyes but poor for disperse dyes.
Color Index: ---CAS RN NO. PIGMENTS; MORDANTS; LAKESInfluencing the physical, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. We can provide samples depend on your detailed requirements.If we have products in stock, it takes less than 2 weeks. The present inventors have determined that anionic dyes will not have affinity for spandex because they are converted to anionic dyes by alkali during the reduction washing. PIGMENTS; MORDANTS; LAKESInfluencing the physical, e.g. Trading Company In Europe, it is called Elastan instead of spandex. 2000-0060609 discloses a black disperse dye composition for polyester / spandex blend fibers, but yellowing phenomenon and physical properties have not yet been specifically confirmed.In relation to polyester / spandex composites, many documents mention the importance of dyeing method, selection of preparation, dyeing temperature and post-treatment for improvement of washing fastness, and there is almost no related technique which suggests a clear solution I can not.Therefore, there is a need to develop dyes for dyeing polyester / spandex mixed materials having good color fastness, especially yellowing after dyeing, and having high fastness, while improving the aforementioned disadvantages.
7B is a photograph showing the dyeing stepwise.As shown in FIGS. 1997-006665, 2002-0009159, and 2008-0105458 disclose dyeing methods, selection of additives, dyeing temperature, and post-treatment steps to improve the fastness to washing of a polyester / spandex composite material But this is not for the disperse dye composition itself.
11, the disperse dye composition according to the present invention has significantly lower spandex contamination than KIWALON BLACK PUT-NRS The black dye composition (refinement 1) prepared according to Example 1 and the black dye composition (refinement 2) prepared according to Example 2 were subjected to the washing fastness, friction fastness, sublimation fastness and yellowing test The results are shown in Fig. PIGMENTS; MORDANTS; LAKESMonoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing groupDYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FORORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g.