Latest News and Updates on Textile Auxiliaries and Dyes

i. Selection of dyeing auxiliaries: In the dyeing process, in order to improve the dyeing performance of dyes, dyeing auxiliaries are usually added. The auxiliary uses anionic and non-anionic leveling agents, and the dosage is 0.5g/l-1.0g /l, if the dosage is too high, the dispersibility at high tem Read More

i. Coverage: Polyester fibers have undergone various heat treatments during the manufacturing process, resulting in uneven physical structures such as fiber crystallinity, distribution and molecular orientation, resulting in differences in dye uptake, resulting in so-called stripes, warp Shadow. (Th Read More

Direct dyes refer to dyes that can be directly dissolved in water, have high directness to cellulose fibers, and do not need to use relevant chemical methods to color fibers and other materials. The principle of direct dyesDirect dyes have water-soluble groups such as sulfonic acid group (-SOH) or c Read More

According to the latest information, affected by the continuous raging epidemic, all parts of East China have recently upgraded prevention and control measures, announcing the temporary closure of expressway exits and service areas.Either "can't make an appointment with the driver", or "have an appo Read More

La amilasa es el nombre general de las enzimas que hidrolizan el almidón y el glucógeno. Por lo general, cataliza la hidrólisis de la suspensión de almidón en los tejidos por la amilasa. Debido a la alta eficiencia y especificidad de la amilasa, la tasa de desencolado de la enzima es alta y el desencolado es rápido. Menos contaminación, el producto es más suave que el método ácido y el método alcalino, y no daña la fibra. Hay muchos tipos de amilasa, dependiendo de la tela, la combinación de equipos es diferente y el flujo del proceso también es diferente. Read More

Suavizante aniónico Además de jabón, aceite sulfonado, etc., el suavizante aniónico se compone principalmente de compuestos catiónicos o compuestos aniónicos y no iónicos con alcanos de cadena larga como estearil succinato sulfonato de sodio y estearil éster sulfato. En general, tiene buena humectabilidad y estabilidad térmica, se puede usar en el mismo baño con un agente blanqueador fluorescente y se puede usar como suavizante para telas extrablancas. También es más adecuado para fibras celulósicas, que pueden dar a las telas una mejor absorción de agua, pero su adsorción a las fibras es similar a la de los tintes directos, que es relativamente débil, por lo que el efecto suavizante es pobre y es fácil de lavar. . Además, debido a que tiene un efecto suavizante en el baño, se puede utilizar para fregar la seda para evitar arañazos (rayaduras grises). Read More

Tal vez, nunca supiste de los tintes de plantas, o sabías que algunas plantas y alimentos se pueden teñir, como el añil, la cebolla, la morera, el aguacate, etc., pero quizás no creas que existen tantos tipos de plantas y tintes naturales. que se puede teñir, el color será tan rico. Read More

Perhaps, you never knew about plant dyeing, or you knew that some plants and food can be dyed, such as indigo, onion, mulberry, avocado, etc., but you may not believe that there are so many types of plants and natural dyes that can be dyed , the color will be so rich. Read More

According to chemical structure, disperse dyes are mainly divided into two categories: azo type and anthraquinone type, as well as those containing heterocyclic structures such as nitrostyrene and benzimidazole. According to application performance and color fastness, it is usually divided into:(1) Read More

Since disperse dyes are insoluble in water and only use water as a medium, they are directly dissolved in fibers during dyeing, using fibers as a solvent, and dyes as a dissolution process of the solute. Since both the solvent and the solute are solid, it is called "solid solution theory". Polyester Read More

Acid dyes, direct dyes and reactive dyes are all water-soluble dyes, and the output in 2001 was 30,000 tons, 20,000 tons and 45,000 tons respectively. However, for a long time, my country's dye enterprises have paid more attention to the development and research of new structural dyes, while the res Read More

With the use of small liquor ratio and continuous dyeing process, the degree of automation of printing and dyeing has been continuously improved, the emergence of automatic fillers and pulp mixing, and the introduction of liquid dyes require the preparation of high-concentration and high-stability d Read More