Latest News and Updates on Textile Auxiliaries and Dyes

Nylon/cotton fabrics are usually dyed by two-bath over-dyeing, that is, dyeing nylon with neutral, acid or disperse dyes, and then dyeing cotton with medium-temperature reactive dyes. The two-bath over-dyeing method is used for dyeing. The advantage is that the color (shade, shade) of nylon and cott Read More

Industry experts believe that in the second half of this year, the cost of dyes will continue to show an upward trend driven by the price increase of bulk raw materials, which is undoubtedly worse for the dye industry, which is currently under greater operating pressure. In the face of increasing co Read More

The cold-rolling process is a processing process at room temperature. Because the cold-rolling process technology has many advantages such as low investment cost, low energy consumption, low water consumption, high flexibility and productivity, strong process adaptability, and small loss of fabric s Read More

There are two main methods of fabric printing and dyeing, one is traditional paint printing and the other is reactive printing and dyeing as opposed to paint printing and dyeing.Reactive printing and dyeing means that the active gene of the dye is combined with fiber molecules under certain conditio Read More

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

1. Direct dyes Structural properties: Direct dyes are a kind of water-soluble anionic dyes. Most of the dye molecules contain sulfonic acid groups, and some have carboxyl groups. The dye molecules and cellulose molecules are combined by van der Waals forces and hydrogen bonds. Dyeing objects and met Read More

1. Dyeing process The dyeing process can be roughly divided into three stages: A. Absorbing Adsorption is the process in which the dye attaches to the surface of the fiber; the dye is adsorbed by the fiber in the solution due to the intermolecular force and the electrostatic attraction between ions. Read More

Factors affecting the light fastness of dyes 1. The wavelength of the light source and the irradiated light; 2. Environmental factors; 3. The chemical properties and organizational structure of the fiber; 4. Bonding strength between dye and fiber; 5. The chemical Read More

Cold pad-batch dyeing, as a semi-continuous dyeing method, realizes environmentally friendly dyeing of cotton knitted fabrics through processes such as semi-product pretreatment, pad dyeing solution, coiling, stacking, washing, soaping, washing and drying. 1. Pre-processing preparationThe cold pad-b Read More

The development, quality improvement, and upgrade of certain varieties of cotton and its blended knitted fabrics require mercerizing treatment and reasonable selection of mercerizing methods. Now give an example for discussion. 1. It can improve the quality of knitwear Knitted outerwear fabrics such Read More

Why is the wet fastness and rubbing fastness poor when the reactive dyes dye the dark color of cotton? How to deal with it?(1) Reasons for poor fastness. Unlike direct dyes dyeing cotton, neutral (or acid) dyes dyeing nylon, disperse dyes dyeing polyester, reactive dyes dyeing cotton are not combine Read More

Cause： When the medium-temperature reactive turquoise blue is dip dyed, it is easy to produce color spots and stains, because the reactive turquoise blue has the defects of poor salt resistance and alkali solubility stability. The meso-temperature reactive turquoise blue has good salt dissolution st Read More