l direct dyes These dyes do not need to rely on other agents and can be dyed cotton, hemp, silk, wool and other fibers on the name. The staining method is simple, Advertising Feather Flags chromatography is complete, Yard Flags For Sale low cost. Washing and light fastness is poor, such as post-processing, as appropriate, to improve the fastness of the dyeing finished.
Insoluble azo dyes such dyes are essentially two dye intermediates, coupling in the fabric forming insoluble pigment. Ice in the dyeing process, also known as ice dyes. It's washable, light fastness is generally better than the more homogeneous, chromatography, a rich ruby color, low prices, Custom Advertising Feather Flags so widely used in dyeing and of cellulose fibers.
Three reactive dyes, also known as reactive dyes. Customized Monogram Garden Flags The type of dye is 50 years before developing a new type of dye. Its molecular structure contains one or more of the active genes, under appropriate conditions, can react chemically with the fiber to form a covalent bond. It can be used for dyeing cotton, hemp, silk, wool, viscose rayon, nylon, polyvinyl alcohol and other textiles.
4, vat dyes, such dyes are not soluble in water, dissolved in alkaline solution with the reductant were stained, stained after oxidation into the insoluble dye firmly fixed on the fiber. Stronger dye alkaline, generally not suitable for dyeing wool, silk and other protein fibers. Complete this type of dye chromatography, bright color, Decorative Flags And Banners good color fastness, but the price is high, and difficult to uniformly stained.
Dyes, soluble vat dyes it into sulfate sodium salt of the leuco vat dyes system, become able to directly dissolved in water is called soluble vat dyes can be used as a variety of fiber dyeing. Yard Flags For Sale Complete this type of dye chromatography, bright color, dyeing and color fastness. But its price is even higher than the vat dyes, while the affinity below the vat dyes, it is generally only applicable to dyed light-colored fabrics. Swooper Feather Flags Wholesale
6 most of the sulfur dyes such dyes do not dissolve in water and organic solvents, but dissolved in the sodium sulfide solution dyed fibers can be dissolved. But also because of the dye too alkaline, not suitable for dyeing protein fibers. Type of dye chromatography is more homogeneous, low price, good color fastness, Yard Flags For Sale but colored light is not bright.
Sulfide vat dyes curing vat dyes, chemical structure and manufacturing methods are the same as the general sulfur dyes, and its color fastness and dyeing properties between sulfide and vat dyes between the vat dyes, so called vulcanization. Staining can be used caustic soda – sodium hydrosulfite or sodium sulfide – sodium hydrosulfite dissolved dye.
Phthalocyanine dyes phthalocyanine dyes often as – a dye intermediate, fabric condensation and metal atom complexation from color lakes. Chromatogram of such dyes is only blue and green, but because of the high color fastness, shade distinct and pure, so promising.
Certain aromatic amines compounds oxidized dye in the fiber oxidation and condensation reaction, the insoluble dye, called oxidation dyes. Essence of such a pigment dye can only say that fastness attached to the fiber.
10 polycondensation dye in its structure, the introduction of different types of dye mother with a thiosulfate-based intermediates formed temporarily insoluble dye. In dyeing, the dye can shrink the synthesis of macromolecules to gather deposited on the fibers, resulting in excellent color fastness.
11 disperse dyes These dyes are low solubility in water, very fine particles, was in the dye in the dispersion, is a non-ionic dye is mainly used for the dyeing of polyester, the color fastness higher. Yard Flags For Sale
12 acid dyes such dyes are water-soluble, mostly containing sulfonic acid groups, carboxyl and other water-soluble gene. In acidic, weakly acidic or neutral media dyeing protein fibers, but the wet fastness is poor.
13 dyes such dyes in acidic media and acid-containing media, including the two. Yard Flags For Sale A dye itself does not contain the metal ion for the mordant before dyeing or dyed after the fabric is treated with mordant treatment for metal ions; the other is in the manufacture of dyes, pre-dye and metal ion complexation, the formation containing media metal complex dyes, dyes before dyeing or staining without mordanting treatment, light fastness, wash fastness of such dyes acid dyes, but the color is more darker, mainly for wool dyeing.