Introduction to the characteristics of dyes, the composition of common dyes

Reactive dye. There are nine main types according to different reaction groups, namely: (1) dichlorotriazine type. For example, China's X-type active focal dridy, foreign products such as Procion

mx。(2) Monochlorotriazine type. Such as K-type reactive dyes in China, foreign products such as Procion

d。(3) Vinyl sulfone type. Such as our KN type reactive dyes, foreign products such as remazol. (4) Monochlorotriazine and vinylsulfone double reactive groups. Such as China's M-type live dyes, foreign products such as Sumifix

supra。(5) Dichlorotriazine type A. For example, China's KE type is a reactive dye, and foreign products such as Procion

h-e。(6) Dichlorotriazine type B. Such as China's KP-type reactive dyes, foreign products such as Procion

sp。(7) Phosphonic acid type. Such as China's p-type reactive dyes, foreign products such as Procion

t。(8) Difluoromonochloropyrimidine.

Type. Such as China's F-type reactive dyes, foreign products such as drimarene

r,drimarene

k。(9) Pyridine carboxylic acid triazine type. Such as China's R-type reactive dyes, foreign products such as Kayacelon.

The components of common dyes include vegetable dyes, animal dyes, synthetic dyes (also known as artificial dyes), etc

1) Diaminostilbene disulfonic acid direct dyes: this kind of dyes have bright colors and moderate fastness, and direct light-resistant orange GGL (direct orange 39) is an environmentally friendly dye with good performance. Direct light fastness yellow 3bll (direct yellow 106) is a triazole direct dye, and the sun fastness is up to 6 7 grades.

Direct lightfastness green IRC (direct green 34) has a high dyeing rate and excellent dyeing fastness, with a light fastness of 6 7 and a washing fastness of 3 4.

2) Diaminodiphenylurea direct dyes: this type of dye is non-carcinogenic and has high fastness to sunlight. There are many varieties of applications, and it is an environmentally friendly dye.

Such as direct lightfast yellow RSC (direct yellow 50), direct lightfast red F3B (direct red 80), direct brown 112, direct brown 126, direct brown 152, etc.

3) Diaminobenzoyl tianiline direct dyes: this kind of dye has good fastness and is an environmentally friendly dye. Such as direct green N-B (direct green 89), direct yellow brown N-D3G (direct brown 223), direct black N-bn (direct black 166) and so on.

4) Diaminobenzene sulfonyl teaniline direct dyes: This kind of dyes are used to synthesize black direct dyes with diaminic compounds, and the dyeing performance and fastness are very good. It is widely used for dyeing cotton, linen, viscose, silk, leather.

Products that can replace banned direct dyes have been developed and screened, such as direct black 166 (direct black N-bn), acid black 210 (acid black NT), acid black 234, etc.

5) Diaminoheterocyclic direct dyes: This kind of dyes are direct dyes synthesized from diaminoheterocyclic compounds, such as dibenzodioxazine direct dyes, which have bright colors, high coloring strength and dyefastness, and a sun fastness of 7. Representative varieties include Direct Blue 106 (Direct Light Resistant Brilliant Blue FF2GL), Direct Blue 108 (Direct Light Fast Blue FFRL) and so on.

(1) Natural dye ingredients.

1. Hematoxylin 2, magenta (carmine) 3, indigo magenta (indigo carmine) 4, lichen red (orcein).

b) Artificial dye composition.

1. Acid fuchsin 2, Congo red (congo red) 3, methyl blue (methyl blue) 4, fast green (fast green) 5 aniline blue (aniline blue) 6, Sudan (sudan) 6, Sudan (sudan) 7, Sudan (sudan) 8, eosin (eosin) 9, basic (complex) red (basic fuchsin) 10, Crystal Violet 11, Gentian Violet 12, Neutral Red 13, Safranin 14, Methylene Blue or Methylene Blue 15, Methyl Green

Explanation of dyes [dye].

A natural or synthetic dyeing substance, whether soluble or not, used to dye the substance Detailed explanation of the colored substance that can adhere to various fibers and other materials directly or by the action of mordant, and some can be combined with the dyed substance. It is divided into two categories: natural and combined. The former such as alizarin, indigo, etc.; The latter is mainly chemically processed from coal tar fractionation products (or petroleum processing products).

The word decomposition of dye dye ǎ put something in the pigment to make the color: dye. Stain.

Dyehouse. Dye vat. Dyeing.

Feeling sick or getting into a bad habit or exposure to something: getting sick. Infect.

Infect. Contamination. In pristine condition.

radical : wood; Explanation of the material à estimated scratch resistance, conjecture: expected.

Anticipate. A substance that can be used to make something else: a material.

Material. Preparation. Cereals for feeding livestock:

Forage. A glass with a low melting point that is used to make utensils or crafts: feedware.

Cuisine. Measure word.

Commonly used fluorescent dyes include fluorescent green B (EGFP), fluorescent red (DSRED), fluorescent yellow (YFP), fluorescent violet (CFP), fluorescent orange (CFTR), etc.

Data Extension:

Fluorescent dyes are substances that emit another wavelength of light wave after the absorption cover collapses to emit another wavelength larger than the light wave that absorbs light. They are mostly compounds that contain benzene rings or heterocycles with conjugated double bonds. Fluorochromes can be used alone or in combination to form a composite fluorochrome.

Fluorescent dyes: Dyes that emit fluorescence. After absorbing ultraviolet or visible light, it can convert short-wavelength light into long-wavelength visible light waves and reflect them, showing shiny bright colors.

For example, acidic eosin, fluorescent yellow, red mercury, and some disperse dyes. Most of them are compounds that are round in substance, contain benzene rings or heterocycles, and have conjugated double bonds.

Fluorochromes can be used alone or in combination to form a composite fluorochrome. Among them, the composite fluorescent dye is a fluorescent dye synthesized by fluorescence resonance energy transfer technology, which is composed of a donor and an acceptor fluorescent molecule that are very close together and the energy can be transferred between each other.

The composite dye is excited at the excitation wavelength of the acceptor molecule, emitting a photon at the emission wavelength of the donor molecule. Fluorescent dyes are developing rapidly, and the fluorescent dyes that have been developed for scientific research and clinical applications have basically covered the entire spectral range from ultraviolet to visible and infrared.

Fluorescent dyes are often used in the preparation of fluorescent dye products, as well as brighteners in whitening laundry detergents, various fluorescent road marker paints for indicating signals, fluorescent sign clothing, etc.

Other uses of fluorescent dyes include leakage of water and industrial contaminants, connection systems, measurement of liquids discharged from power plants, leaks in toilets, illegal connection of sewage water pipes, monitoring of flow and mapping, analysis of corruption systems, and use in the printing and dyeing of fabrics and certain special signs (e.g., dark place symbols) and military tracing.

Fluorescent dyes, due to their high sensitivity and easy operation, have gradually replaced radioisotopes as detection markers, which are widely used in fluorescent immunoassay, fluorescent probes, cell staining, etc. Including specific DNA staining for chromosome analysis, cell cycle, apoptosis and other related studies.