Latest News and Updates on Textile Auxiliaries and Dyes

The Secretary-General of the World Health Organization Tan Desai recently stated that in the four weeks of July, the number of confirmed cases around the world increased by 80%. Southeast Asia, which is ravaged by the Delta variant virus, is currently the most severely hit by the epidemic. The indus Read More

4 factors to consider when choosing dyes1.Select dyes according to the cost of dyes: When choosing dyes, not only must consider the shade and fastness, but also consider the cost of dyes and the auxiliary agents used, and the source of goods.2. Select dyes according to the mechanical properties of d Read More

What is Dye ink and its application? Dye ink generally refers to water-soluble ink, but in fact, solvent-based inks made of alcohol-soluble/oil-soluble dyes are also available. Pigment ink is insoluble in water, so it needs to be superfinely dispersed before it can be applied. The ink produced with Read More

Reactive Brilliant Blue Discharging Technology The conventional reactive dye discharge printing process uses the strong reducibility of the white powder to destroy the chromophoric groups of the background color. The color is colored with reducing agent-resistant vat dyes, and Degulin is used as a d Read More

The application of medium temperature reactive dye impregnation auxiliaries should be correctApplication of electrolyte1. The amount of electrolyte appliedAfter testing, most medium-temperature reactive dyes are dyed in dark colors, and the maximum amount of electrolyte should be less than 70g/L; fo Read More

La longitud de onda de absorción de la solución de tinte cambia con la polaridad del solvente. Cuando el tinte se disuelve en un solvente polar, la polaridad del tinte aumenta a medida que aumenta la polaridad del solvente, de modo que la energía de excitación se reduce, la longitud de onda de absorción se mueve hacia la dirección de onda larga y el color de la solución de tinte se intensifica. Read More

Los pasos clave para identificar los tipos de colorantes en las fibras de celulosa son el muestreo y el pretratamiento de la muestra. Al tomar la muestra, se debe tomar la parte del mismo colorante. Si la muestra contiene varios tonos, se debe tomar cada tono. Si la identificación de la fibra es requerido, el tipo de fibra debe confirmarse de acuerdo con la norma FZ / TO1057. Si hay impurezas, grasa y lodo en la muestra que afectan el experimento, debe tratarse con un detergente en agua caliente a 60-70 ℃ durante 15 minutos, lavado y secado. Si se sabe que la muestra está acabada con resina, utilice los siguientes métodos respectivamente. Read More

In transfer printing, the dye is printed on the transfer printing paper first, and then the dye in the pattern is transferred to the textile through processing during the transfer printing, and fixed to form the pattern. According to different transfer methods, transfer printing can be divided into Read More

There are many kinds of color fastness, such as washing fastness, rubbing fastness, perspiration fastness, chlorine fastness, light fastness, sublimation fastness, etc. This article mainly discusses sublimation fastness.Sublimation fastness: refers to the migration and vaporization of dye molecules Read More

What are reactive dyes and their advantages and disadvantagesReactive dyes are a new type of water-soluble dyes that appeared in the 1950s. Reactive dye molecules contain reactive groups that can react with hydroxyl groups in cellulose and amino groups in protein fibers, and form covalent bonds with Read More

6. Роль ЮаньминфэньИногда кислотно-комплексные красители необходимо окрашивать с pH ниже 4, поэтому сульфат натрия можно использовать в качестве замедлителя окрашивания. Напротив, если значение pH среды красильной ванны выше 4, использование сульфата натрия не подходит, потому что он увеличивает тен Read More

1. Тщательно выбирайте красители.Металлокомплексные красители, содержащие медь, хром и никель, представляют собой красители, которые заранее готовят в металлокомплексы с красителями определенной структуры и комплексообразователями металлов. Есть 93 кислотных металлокомплексных красителя. Европейский Read More