Relationship between structure and application properties of acid dyes
The molecular structure of dyestuffs has a very close relationship with the application properties of dyestuffs on fibers, such as light resistance, wet treatment resistance (washing, soaping), shrinkage resistance, level dyeing performance and dyeing rate in the dyeing process, etc. Therefore, some laws between the molecular structure of dyestuffs and their application properties have been paid attention by dyestuff workers. Therefore, some laws between the molecular structure of dyestuffs and their application properties have been emphasized by dyestuff workers.
2023-11-21
Fluorescein, rhodamine and Anna dyes are widely used for labeling oligonucleotides, most of which can be used as phosphoramidite reagents or support-bound reagents in solid-phase oligonucleotide syntheses, and this synthetic method is usually the most convenient for preparing fluorescently labeled oligonucleotides, but in some cases other methods are desired, especially those more sensitive to the conditions of deprotection of the basic oligo fluorophores. If the fluorophore is not incorporated during solid-phase synthesis
2023-11-21
Do you understand what dyeing is? What are the different types of dyeing methods
Direct dyes are generally soluble in water because they contain water-soluble groups in their molecular structure. There are also a few dyes need to add some soda ash to help dissolve, he can not rely on other additives and direct dyeing of cotton, linen, silk, wool and viscose and other fibers, so called direct dyes. Direct dyes complete color spectrum, bright colors, low prices, easy dyeing methods, color uniformity, but its color fastness to washing is poor, color fastness to sunlight is not good. In addition to light colors, generally have to solid color treatment.
2023-11-21
The industry of dyes is very good, because of the more benefits for the enterprise when used, so it is favored by the customers, in order to make you more familiar with it, the next step is to talk about some of the relevant information of the dyes? I hope to bring help to more people.
2023-11-21
Relationship between the molecular structure of dyestuffs and the fastness of wet treatment
Dyestuffs must have a certain degree of wet processing fastness, including resistance to washing, soaping, wet rubbing, alkaline boiling and shrinkage fastness. Wet processing fastness is directly related to the diffusion properties of the dye molecules in the fiber, the relative molecular mass of the dye, the molecular configuration and the binding force between the dye and the fiber.
2023-11-21
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