Latest News and Updates on Textile Auxiliaries and Dyes

Precautions for Plastic Dyeing Plastic dyeing is a process that involves imparting color to plastic materials. To achieve high - quality, consistent, and long - lasting results, several precautions need to be taken. 1. Compatibility of Dyes and PlasticsDye Type: Different plastics require specific t Read More

Yarn dyeingYarn (including filament) dyeing has a history of nearly a thousand years and has long been dyed using twisted yarn. It was not until 1882 that the first cylinder dyeing patent was granted in the world, followed by warp dyeing.1： Twisted yarn dyeingThe dyeing method of converting short or Read More

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Precautions for Silk DyeingSilk is a delicate and luxurious fabric, and dyeing it requires careful attention to ensure the best results. Here are some important precautions to keep in mind during the silk dyeing process.1. Preparation of SilkBefore dyeing, it is essential to prepare the silk properl Read More

Nano liquid dye wash-free printing: the core secret of green printing and dyeingTraditional printing and dyeing rely on a lot of water washing to remove floating colors, while nano liquid dyes have completely subverted this process through three technological innovations:1. Nano-level penetrationDye Read More

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

When dyeing cotton fabrics with vat dyes, issues such as no coloration, wrong shade, or uneven dyeing are common complaints among dyeing technicians. However, the root cause of these problems often lies not in the dye itself, but in incorrect dyeing procedures, especially during the pre-reduction st 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