Latest News and Updates on Textile Auxiliaries and Dyes

1. The pH of the dye bath should be controlled at 5 to 6The pH of the dye bath should be controlled at 5 to 6, which must be adjusted with acetic acid. It is best to use 1 to 2 g/L ammonium acetate or sodium acetate as a buffer. Do not use the so-called "buffer" containing inorganic acids (S-1, C1-)

When using acid dyes for dyeing, you often encounter problems such as color flowers, discoloration, yellowish light, and insufficient level dyeing. In addition to poor quality of dyes, improper process operation or failure to handle details are also among the reasons for these problems.
Therefore, taking acid dye dyeing of nylon as an example, we will discuss the dyeing process of acid dyes and the issues that should be paid attention to during production.

Media Black PV, como un tinte de medios basado en ácido, tiene una amplia gama de aplicaciones en la cromatografía de lana debido a su excelente uniformidad y solidez a color, pero hay problemas como la contaminación ambiental y el daño fibroso causado por los agentes de alta temperatura y tintura.

Media black PV, as a acid -based media dye, has a wide range of applications on wool chromatography due to its excellent uniformity and coloring fastness.

Para preparar una categoría de tinte de fotosíntesis que se puede usar para la lana, el artículo sintetiza un colorante de piramida salado de amonio trimestral con 2,3,3, y la estructura de su estructura se realiza a través de la espectrometría de masas.

In order to prepare a category of photosynthesis dye that can be used for wool, the article synthesizes a quarterly ammonium salted pyramide dye.

1. Materiales, productos químicos e instrumentos experimentales importantesTeñido de tela de lana, lana blanca, amoníaco, amoníaco, sulfato diluido, carbonato de sodio, nitrato de sodio, ácido acético, tetable de etyleina de sodio, glicerina, copa de quemaduras, tubo, termómetro, grillo de porcelana

1. Important experimental materials, chemicals and instrumentsDyeing wool fabric, white wool, ammonia, ammonia, dilute sulfate, sodium carbonate, sodium nitrate, acetic acid, sodium ethyleine tetable, glycerin, burn cup, amount tube, thermometer, porcelain cricket.

La tinción de lana tradicional usa principalmente tintes ácidos, tintes de medios ácidos y tintes complejos de metal.

The traditional wool stain mainly uses acidic dyes, acid media dyes and metal complex dyes.

los colorantes ácidos tradicionales se refieren a los colorantes solubles en agua que contienen grupos ácidos, y la gran mayoría de los grupos ácidos contienen sulfonato de sodio en las moléculas de colorante.

Learning Guide: Traditional acid dyes refer to water -soluble dyes containing acid groups, and the vast majority of acid groups contain sodium sulfonate exist on dye molecules.