Latest News and Updates on Textile Auxiliaries and Dyes

Taking reactive dyes as an example, in theory, due to the covalent bond between dyes and fibers, washing with water cannot easily cause dye desorption, fading and bleeding. Therefore, the color fastness of reactive dyes to soaping depends on Quantity of unfixed dyes (hydrolyzed dyes and small amount Read More

1. Test method for color fastness to soapingSoaping color fastness is one of the most common color fastness assessment items. Soaping color fastness refers to the degree of fading of colored fabrics after soaping under specified conditions, which includes two evaluation contents: original fading and Read More

Brief Analysis of Economic OperationFrom January to November 2021, the printing and dyeing industry generally continued the development trend of steady recovery, and the industry production continued to improve. The output of printing and dyeing fabrics of enterprises above designated size reached a Read More

Chlorine gas is generally used as a disinfectant in tap water. Therefore, when washing clothes or swimming, the dyes in the clothes will react with a small amount of effective chlorine remaining in the tap water to degrade the dyes, resulting in changes in the color of the clothes. Dyes that are eas Read More

Los colorantes para cuero son colorantes que tienen afinidad por el cuero y se pueden usar para teñir el cuero. En la coloración de productos de piel se pueden utilizar colorantes ácidos, medios, directos, básicos, etc. Los más utilizados en la coloración en spray son los colorantes neutros. Read More

Los colorantes fluorescentes son sustancias que absorben ondas de luz de cierta longitud de onda y emiten ondas de luz de otra longitud de onda mayor que la absorción de luz. La mayoría de ellos son compuestos que contienen un anillo bencénico o un anillo heterocíclico y con doble enlace conjugado. Los colorantes fluorescentes se pueden usar solos o combinados en colorantes fluorescentes compuestos. Read More

Reactive dyes have a wide chromatogram, bright color, excellent performance and strong applicability, and their hue and performance are basically in line with the market's requirements for fibers and clothing. Reactive dyes can achieve high levels of fastness properties, especially wet fastness, wit Read More

According to incomplete statistics, since the beginning of 2022, the prices of dozens of chemical raw materials have risen, of which the price of lithium hydroxide and lithium carbonate per ton has risen by more than 10,000 yuan; 16 raw materials such as isobutyraldehyde, lithium iron phosphate, sil Read More

03 Важные моменты в процессе окрашивания холодным тампономИсследование технологии и применение холодного тампонного крашения в моей стране началось относительно поздно, и ее продвижение и применение на полиграфических и красильных предприятиях еще не популярно.Опираясь на собственный практический оп Read More

01 ПредисловиеОкрашивание холодным тампоном - это совершенно новый процесс окрашивания открытой ширины. Этот процесс окрашивания возник в Европе. Поскольку этот процесс окрашивания имеет высокую скорость фиксации цвета, хорошую стойкость цвета, энергосбережение, снижение загрязнения, удобное обслужи Read More

FirstIn the color-fixing bath where salt and alkali coexist, the dye will be water-soluble due to the high concentration of electrolyte (salt, alkali), the greater salting-out effect, and the occurrence of the "elimination reaction" of the active group of ß-hydroxyethyl sulfone sulfate. The ability Read More

The original dyes are mixed, ground, and processed into commercial dyes with a certain amount of fillers and auxiliaries, and the process of standardizing the dyes is called dye commercialization. The commercial processing of dyestuffs is crucial to stabilizing the quality of finished dyestuffs, imp Read More