Saujanya Dye Stuffs M Brand Dyes (Dichlorotriazine)

Saujanya Dye Stuffs M BRAND DYES are highly reactive requiring comparatively milder conditions in dye fixation. They are primarily of interest in dyeing at normal room temperature (about 25º - 30º Deg. C) using Soda Ash or Sodium Bicarbonate. Saujanya Dye Stuffs M BRAND dyes are applicable to cellulosic textiles by Batch-wise, Semi-continuous and Continuous methods in conventional textile machinery like open-vat, Package, Jet, Jig, Winch and padding mangle. The versatility in various application procedures and the availability of wide range of bright and fast shades are the outstanding features of this class of dyestuffs.

General Characteristics Of 'M' Brand Dyes

Stability

The dyestuff should be stored in cool and dry conditions. The containers should be tightly closed when not in use. High temperature, Humidity and alkaline pH conditions reduce the stability of the dyes in solution.

Water supply

Soft of the softened water should be employed, avoiding alkalinity especially while dissolving the dyes, when hard along is available, it should be softened with sequestering agents. In dyeing, the pH of the water supply should be within the limits pH -7-8.

Method Dyeing

Receive cold water in the dye bath (Recommended m/l ratio 1 to 15), add required quantity of common salt or gluber salt. Paste required dyes with the water and dissolve by adding water 30º C to same. Add dissolved dye to the dye bath. Enter material, run 15 to 20 minutes. Add required amount of soda ash (as solution), run material for 45 to 60 minutes, squeeze, wash with water and soap at boil with 2g/L soap, wash with water and dry. Soaping treatment is highly essential to remove unfixed dye to produce dyeings of high washing fastness.

Reactive Cold Brand Dyes Manufacturer & Exporter in Ahmedabad Gujarat India Asia

High Exhaust Dyes (Reactive 'HE' Dyes)

HE Dyes are Reactive Dyes for cellulosic material and are designed to give high fixation by exhaust dyeing methods when applied at the temperature 75" 90º C. HE dyes are suitable for dying cotton and other cellulosic materials. These dyes process significantly higher exhausation and Fixation efficiency which result in appreciable cost reduction, in compariso to Conventional reactive dyes. Some advantages of HE Dyes have:-

(i) Excellent compatibility (ii) Good built up. (iii) Excellent Reproducibility (iv) Wide Applicability
(v) Outstading built up and consistency.

Method Of Dyeing

Set the dye bath at 50 and add dyestuff. Run for 15 Minutes. Add half of the glauber salt and continue Dyeing Raise the temperature to 80º-85º c and run for 15 minutes. Add soda Ash solution and run 30-60 minutes. Wash properly the material.

Soaping After Exhaust Dyeing

(A) Rinse cold water (10-20 min.)
(B) Soaping at boil water (15-30 min.)
(C) Rinse warm water (10 min.)

Saujanya Dye Stuffs H Brand Dyes (Monochlorotriazine)

Saujanya Dye Stuffs H BRAND DYES are monochlorotriazine reactive dyes having a low reactivity and low substantivity. Since these dyes have low reactivity, they requires more severe conditions for fixation with cellulosic materials. They are readily soluble by pouring water of 80º-85º C on powder & stirring well. They are applicable on cellulosic materials by both dyeing as well as printing methods.

In comparison with cold brand dyes, the 'H' brand dyes requires either a long steaming time or a high thermofixation temperature (with urea) for optimum fixation. H dyes of low to medium substantivity may lead to migration problem in dyeing prior to fixation.

When low concentration of highly substantive dyes are used, trailing becomes evident. trailing is avoided by selecting dyes of low or medium substantivity, using small padding troughs fed to constant level and operating at the highest running speed commensurate with the needs of the rest of the process.

These dyes contains very good fastness properties and suitable for printing cotton, viscose, cuprammonium rayons and natural silk.

Method Of Dyeing

Take requisite quantity of water in dye bath (Recommended m/1 ratio 1 to 15), heat to 40º C, add common salt or glauber salt, soda ash and 1g/1 of resist. please requisite dyes with the water and dissolve by adding water at 80º C. Add dissolved dye to the dye bath. Enter material. Run at 40º C for 15 minutes. Raise temp, slowly to 80º C for 45 to 60 minutes, squeeze, wash with water and soap at boil with 2g/l soap, wash with water and dry. Soaping treatment is highly essentional to remove unfixed dye to produce dyeings of high washing fastness.

Standard Exhaust Methods for Hot Brand Reactive Dyes 

Depth of Shade %	Salt g/l (Dye Liquor)	Soda Ash g/l (Dye Liquor)
Up to 0.5	40	20
0.5 to 2.0	60	20
2.0 to 4.0	80	20
Above 4.0	100	20

Reactive "ME" Dyes (Bi-Functional)

ME Dyes are low temperature High exhaust Reactive Dyes suitable for Dyeing Padding and printing of all dyes of cellulosic material. These dyes offer high grade of all round fastness properties. They offer leveling properties and excellent alkalis stability. Fixation temperature of these dyes is 60º-45º C.

Method Of Dyeing

Set the dye bath at 20º-30º C and add Glauber's salt, now enter the material. Run for 20 minutes. Add half amount of the glauber's salt and continue dyeing Now gradually raise the temperature to 60º-65º and dyeing for 15 minutes further, now add soda Ash solution and continue dyeing for 60 minutes. Wash properly the material.

Depth of Shade %	Salt g/l (Dye Liquor)	Soda Ash g/l (Dye Liquor)
Up to 0.5	30	10
0.5 to 1.0	35	15
1.0 to 2.0	50	15
2.0 to 4.0	60	20
Above 4.0	80	20

Reactive ME Dyes FASTNESS PROPERTIES Light Washing Perspiration Hypochlorite Dischargeability Red ME4BL Red - 195   6 4-5 4-5 3 P Red ME6BL Red - 196/250   5 4-5 4 3-4 F Red ME3BL Red - 180   5-6 5 5 1 P Orange ME2RL Orange - 122   5 5 4 2 P G. Yellow MERL Yellow - 145   5 5 4 4 F Yellow ME3RL     6 4-5 4-5 1 F Yellow ME4GL Yellow-160/186   6 4-5 4-5 1 F Green ME4GL     4-5 4-5 4 1 F Blue ME2RL Blue - 158   4 5 4 1 F Navy Blue ME2GL Blue-194   4-5 4-5 4 1 F Navy Blue ME2GL Blue-194   4-5 4-5 4 1 F Jet Black HFGR     5-6 5 5 2 F Black HFGR     4 5 4 3 G Copper Blue BF Blue - 221   6-7 4 4 2 G Blue BF Blue - 222   4-5 4 4 2 G

Saujanya Dye Stuffs 'VS' Brand Dyes (Bi-Sulfatoethyl Sulfone Class)

Saujanya Dye Stuffs 'VS' BRAND DYES are Reactive Dyes possessing Vinyl sulphone as the reactive group. In presence of alkali, these dyes chemically react with the hydroxyl group of cellulose and form firm, convalent linkages. These dyes are versatile enough to suit different dyeing methods. Results are excellent and shades come clean and brilliant with no variation in dyeing as well as in printing.

'VS' dyestuffs posses poor affinity for cellulosic fibers in absence of salt and alkalis. For this reasons, they are suitable for use on pad. Their substantivity can be increased by addition of giauber's salt or common salt and alkali, making the dyestuff suitable on all conventional dyeing machine for loose material, yarn in hanks and packages and piece goods. The dyeing methods may therefore, be classified under the padding and exhaust processes, standing baths are not recommended, as in alkaline medium inactivation of the dyestuffs by reaction with water takes place as a side reaction.

Method Dyeing

Take requisite quantity of dyes and salt in the Dye bath at 30º C and Alkalis are added after 15-20 Minutes. The bath is then heated to recommended dyeing temperature within 20-30 minutes And Goods are dyed for 60-90 minutes, depending upon the dyeing temperature. Then wash properly the material.