China direct dyes Manufacturers Factory Suppliers
Dec 16, 2019 · direct dyes are mainely used for to dye cellulose materials, such as cotton. this dyes is windely used in paper industry. it is also be used for proteins fibre such as, silk and...
Direct dyeing, in which the dye in the aqueous solution is in contact with the material and is gradually absorbed into the fibers because of the inherent substantivity. (ii) Dyeing with a soluble...
The dye-bath temperature is raised to 90-95oC in 15 to 20 minutes. In order to overcome unlevel dyeing, salt may be added after about 15 minutes of initial dyeing. For improving the fastness to...
Note: Salt Free R.O. direct dyes, Low Salt, Nil Salt direct dyes & Liquid direct dyes (For Paper, Ink, Textile) CI Name Product Name CAS NO. CI No. Direct Blue 15: Sky Bue FF: 2429-74-5: 24400:...
Conventional, common direct dyes are positively (+) charged molecules that are attracted to negatively (-) charged areas of hair. These direct dyes are bigger than couplers and precursors...
Direct Dyes comprise dyestuff class that can be directly applied to substrate in alkalin/neutral bath. These textile direct dyes assist in producing full shades on cotton, linen, silk, wool and...




