Latest News and Updates on Textile Auxiliaries and Dyes

Arabian Black: A Classic Symbol of Deep CharmIn the vast spectrum of black, "Arabic Black" stands proudly as a classic among classics with its unparalleled depth and purity. It goes beyond the scope of ordinary black, presenting an extreme richness that almost swallows light, exuding a solemn, myste Read More

Notes on direct dye dissolutionWater quality: Hard water is the enemy of dissolving direct dyes! Softened water must be used or a water softener (0.5-2 g/L sodium hexametaphosphate or EDTA) must be added. Hard water can cause dye precipitation, color change, reduced color yield and uneven dyeing.Slu Read More

Uses of Acid DyesAcid dyes are water-soluble anionic dyes that contain acidic groups such as sulfonic acid (-SO₃H) or carboxyl (-COOH) in their molecular structure. They are mainly used for dyeing in acidic to neutral dye baths. Their main uses are concentrated in the following aspects:Textile fiber Read More

What else is there in dyes besides dyes?Dye production is generally divided into three steps:1. Synthesis of dye intermediates2. Dye intermediates produce dye powder through chemical reaction3. Dye powder is processed to produce commercial dyes, that is, dye commercializationCommodity dyes are not j Read More

Are fluorescent whitening agents in textiles really harmful?1. Non-fluorescence is a marketing and hype behavior of many businessesIn order to promote their products, some businesses promote their products to be free of fluorescent whitening agents and promote that fluorescent whitening agents are h Read More

What are the fastnesses in the laboratory?1. Dyeing depthIn general: the darker the color, the lower its fastness to washing, rubbing, etc.;In general: the lighter the color, the lower its fastness to sunlight, chlorine bleaching, etc.2. Are the fastness to chlorine bleaching of vat dyes very good?F Read More

The most commonly used acid in printing and dyeing factories: acetic acidAcetic acid (chemical formula CH3COOH), commonly known as acetic acid, is an organic monobasic acid. Acetic acid with a content of 98% freezes at low temperatures and is commonly known as glacial acetic acid. The pH value of an Read More

Four elements of dyesDyes refer to colored organic compounds that can obtain color from fiber materials, but not all colored organic compounds can be used as dyes. As a dye, it generally has four elements.ChromaThe dye must be able to produce a certain concentration of color (with a certain dyeing i Read More

Pigment and dye inksIn terms of digital printer technology, inkjet is the preferred type for photographers and laboratories. Under the same type, two different inks made of dyes and pigments need to be distinguished.Dye inkMade from dyes from natural sources (such as certain plants) or synthetic sou Read More

Precautions for Dyeing Nylon Yarn When dyeing nylon yarn, several crucial aspects need to be taken into account to ensure high - quality results. 1. Pretreatment Before dyeing, nylon yarn should undergo proper pretreatment. This includes scouring to remove impurities such as spinning oils, dirt, and Read More

Test of textile fastness to nitrogen oxide, smoke, ozone, etc.The purpose of the color fastness test of textiles to atmospheric pollutants is to determine the ability of colored textiles to resist the effects of atmospheric pollutants. Atmospheric pollutants mainly include nitrogen oxide, gas smoke, Read More

When dyeing polyester yarn, several key points should be taken into account to ensure high - quality results. Pretreatment Before dyeing, proper pretreatment of polyester yarn is essential. First, the yarn needs to be thoroughly cleaned to remove any impurities, such as oil stains, dust, or spinning Read More