Latest News and Updates on Textile Auxiliaries and Dyes

a) The semi-products before dyeing do not meet the requirements. If the dyed semi-finished product has insufficient mercerization, the mercerization will be alkali-colored, which will change the shade. For example, after sulfide dyeing, the cloth surface will be red and not black.b) Hard water is us Read More

Light fastness Sunlight has wave-particle duality, and the sunlight that transfers energy in the form of photons has a strong impact on the molecular structure of the dye. When the basic structure of the coloring part in the dye structure is destroyed by photons, the color of the light emitted by th Read More

Flat screen printing featuresThe printing method of the flat screen is that after the scraper runs in the weft direction, the cloth surface moves forward after the screen is lifted up and down, which is more suitable for patterns that express the pattern effect in the warp direction.Because it is a Read More

1) Heating requirements:Control the temperature rise, otherwise the temperature rises too fast, it will cause the dye to be dyed too fast, and the phenomenon of color difference will appear.① Colored flowers: refers to uneven dyeing.② Mid-way heat preservation (90℃*5') Purpose: to heat up the dye af Read More

Printing paste refers to a polymer compound that acts as a thickening agent in the color paste and can be dispersed in water to make a thick colloidal solution with a certain concentration. In the actual textile printing process, the paste is the carrier that transfers the dyes and chemicals in the Read More

In the quality inspection of textile color fastness, rubbing color fastness is one of the very important inspection items, and the test result is directly related to the overall color fastness of the fabric. Because some dyes with poor color fastness can cause different degrees of harm to the human Read More

Reasons for poor rubbing fastness:After the fabric is dyed, although the dye is combined with the fiber, there is a large dye concentration gradient between the dyed cloth to be tested and the white cloth to be tested. In the absence of external force, the molecules will spontaneously transfer from Read More

Unreasonable formulation of the process or improper operation produces color fretting;The process is unreasonable (for example, the temperature rises and falls too fast)Poor operation, knotting during dyeing, and power outage during dyeing;The temperature rises too fast and the heat preservation tim Read More

Looking back at the historical power curtailment situation, since 2003, China has had at least five large-scale “power curtailment”. The impact of “power curtailment” on the economy can generally be summarized into two aspects: on the one hand, continuous “power curtailment” directly Drag down indus Read More

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

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

From January to July 2021, my country’s printing and dyeing industry will continue to recover as a whole in terms of quality and efficiency, and business operations will continue to improve. However, under the influence of domestic and foreign epidemics, domestic flood conditions and other uncertain Read More