BLACK COLORS     CATIONIC BLACK 2GH     CATIONIC BLACK 2GN     CATIONIC BLACK GH MEDIUM : HEAVY COLORS DYEING     CATIONIC YELLOW 3GRL        CATIONIC RED GTL 200%     CATIONIC BLUE GRL     CATIONIC BLUE FRL     PALE : MEDIUM COLORS DYEING         CATIONIC GOLDEN YELLOW GL 200%     CATIONIC RED GRL     CATIONIC BLUE GRL NAVY BLUE COLORS     CATIONIC NAVY BLUE 2BL(BLUISH TYPE)     CATIONIC NAVY BLUE MRL     (REDDISH TYPE)-NO STAINING OF OTHER FIBERS     CATIONIC NAVY BLUE 2RL 혼방사 염색용(Dyeing for mixed yarn)     CATIONIC BLACK BLH     CATIONIC BLACK GGL     CATIONIC BLACK GLL     CATIONIC BLACK FRH     CATIONIC BLACK 3GRL BLUE COLORS     CATIONIC BLUE FCL     CATIONIC BLUE NBLH     기타염료(the others)     CATIONIC YELLOW 3G     CATIONIC RED 4G     CATIONIC RED 6B     CATIONIC PINK FG     CATIONIC BLUE BG     CATIONIC RED RP     CATIONIC BORDEAUX RB CONC     CATIONIC BROWN YRB CONC     CATIONIC D/BROWN 3RL Dye excellent in fastness among other basic dyes is called YURIM CATIONIC DYES and bad BASIS DYES. YURIM CATONIC DYES produce the most clear color and excellent in color field. As cationic dyes has a positive(+) charge, they are fixed with fibers by the ion bond which has acid radical     like acryl fibers. Using cationic dyes together with those with negative (direct dye, acid dye, reactionary dye, dispersion dye,     etc) causes precipitation, it is necessary to use anti-precipitation chemicals. Dye stains can be prevented by using the dye lenitive, whereas dye stains can develop when the speed of     dye coloring differs in case of combined dye of different colors.     Therefore the use of dyes which have about the same speed of coloring, or have good compatibility is advised.     The classification of YURIM cationic dyes in terms of their use can be categorized into nine levels from AA,     which has a good fastness of coloring to EE, which is slow in coloring by indicating Mixture Index     (abbr., I-Mix). In Europe, K-Value(Fast 1 to Slow5) is categorized into five levels. Metallic ion dissolving in water and active chlorine can influence on dyeing and coloring. Among metallic ions,     Cu++, Fe++ inflence on the shade of color, and Ca++, Mg++ on fatness of dyeing.     Therefore using soft water is recommended if possible.     Besides, it needs noting that if the pH of the using water is high, some dyestuffs discolor. YURIM cationic and basic dyes are used for C.D. Polyester, paper, ink, and wood acryl fibers, but mainly for     acryl fibers. Dissolution of dyestuff     It should be completely dissolved by applying boiling water over 80℃ after a good stirring of the dyestuff     in the nitric acid of half quantity of the stuff.     Since there is a huge gap in fusibility between high and low temperature, the dissolution of dyestuff should     be made in high water(70-90℃) . Bath stability     Some of the cationic dyestuffs dissolve in dyeing bath of pH 3.5-4.5 or in the high temperature without dyed     stuff. However, in actual dyeing, the dyestuffs are absorbed as the temperature rise and fibers are there,     making the absorbed dyestuffs safe.     Therefore, in actual dyeing, required color can be obtained even though the stuff dissolves in the bath     stability testing in which the fabrics are not contained. Influence of pH     As cationic dyestuffs have the property of dissolving in an alkaline bath and in a strong acid one and     changes to colorless, the pH of dyeing bath needs to be adjusted to 2.5-4.5.     One of the reasons of reproduction of a bad color lies in failing to maintain the pH according to its change     by controling the quantity of acid. 1. About 0.8% of dyeing is needed for Y.R.WHITE AWS like other cationic dyestuffs by fixing PH 4~5 with the     density of 0.W.F. 2. Y.R.WHITE ATR Conc     zinc hydrochloric acid - 5%     oxalic acid - 1.5%     Sodium Nitride - 1.5%     ATR Conc(dyestuff) - 0.1.~0.2% with these proportions, it becomes PH 3~3.5. Raise the temperature slowly by putting the fiber into this salt bathing and take out after boiling for 5 to 10 minutes at 100℃