Latest News and Updates on Textile Auxiliaries and Dyes

First, in a color-fixing bath where salt and alkali coexist, the dye will have a higher concentration of electrolyte (salt, alkali), a greater salting-out effect, and the occurrence of "elimination reaction" of the active group of ß-hydroxyethyl sulfone sulfate. , the water-solubility of its own plu Read More

1 Why is it required to use a small amount of cold water to mix the slurry first, and the temperature of the chemical should not be too high?(1) The purpose of first mixing with a small amount of cold water is to make the dye easily and fully soaked. If the dye is directly poured into the water, the Read More

Migrating after dyeing means that after polyester is dyed with disperse dyes, when treated at high temperature (such as heat setting), disperse dyes can produce a kind of thermal migration due to the influence of additives. Thermal migration is a redistribution phenomenon of disperse dyes in two-pha Read More

The recent overseas situation is not optimistic. BASF declared force majeure, Mitsui Chemicals closed its factories, and the supply of various chemicals plummeted.BASF: The 400,000-ton/year MDI unit at the Geismar plant in North America suffered from an unexpected equipment failure that affected the Read More

La estampación reactiva, como su nombre lo indica, significa que nuestros colorantes de estampación se procesan mediante estampación y teñido reactivos. Los elementos de diseño de la estampación reactiva son más diversos: plantas y flores, figuras geométricas, letras inglesas y diferentes bloques de colores se combinan orgánicamente para expresar diferentes estilos de diseño a través de técnicas de diseño. Dichos tejidos son adecuados para una amplia gama de grupos y tienen un período de aplicación más prolongado. Read More

El análisis del tinte original mencionado aquí se refiere a la prueba y el análisis de las propiedades físicas y químicas del tinte original para las necesidades del procesamiento del tinte. Después de años de investigación, se ha descubierto que el postratamiento no es un simple proceso físico. Antes de procesar el tinte, es necesario analizar muchos indicadores, como la intensidad, el tono, la hidrofilia, la forma de cristal, el nivel de energía y el contenido de impurezas del tinte original para determinar Proporcionar datos básicos con una tecnología de procesamiento razonable. Read More

Силиконовая защитная пленка представляет собой разновидность вязкой защитной пленки из ПЭТ. Как правило, на пленку-основу наносится силиконовое покрытие, которое после отверждения прикрепляется к разделительной пленке (силиконовая защитная пленка с низкой вязкостью может быть прикреплена к оригиналь Read More

La película protectora de silicona es un tipo de película protectora de PET viscoso. Read More

1. Test method for color fastness to lightThe light fastness test refers to placing the textile samples together with a set of blue wool standard samples under the artificial light source and exposing them to the specified conditions, and then comparing the two colors to evaluate the color fastness. Read More

Watermark means that the dyed semi-finished products are dripped or splashed with water droplets before dyeing, in the process of dyeing and fixing and after dyeing, so that the dyes and chemical auxiliaries on the fabrics that are dripped and splashed with water droplets are diluted and destroyed, Read More

2.3 Choose the right dyeing processThe dyeing process has a great influence on the color fastness of the dyed product. For example: Improper chemical materials, hydrolysis of dyes, and excessively hard water quality, resulting in dye aggregation and precipitation; improper color-fixing conditions, l Read More

1. Methods and ways to improve the color fixing rateImproving the fixation rate of reactive dyes can be considered from the selection of dyes and the dyeing process: dyes with high directness and low reactivity have a large amount of adsorption by fibers and are not easy to be hydrolyzed. Fixation r Read More