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| Home Rapid Dyes |
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DYCROPID
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| SR.NO. |
SHADE |
DYCROPID |
| 1 |
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L. YELLOW 3GH |
| 2 |
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G. YELLOW IGK |
| 3 |
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G. YELLOW 2RA |
| 4 |
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ORANGE MRH |
| 5 |
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RED / SP |
| 6 |
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BORDEX - RX |
| 7 |
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BROWN GGH |
| 8 |
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BLUE BN |
| 9 |
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BLACK GH |
| 10 |
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VIOLET MX |
| 11 |
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KHAKHI |
| 12 |
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RUST |
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| BRIEF PROCESS OF RAPID FAST (AZOIC) DYES ON COTTON/ VISCOSE TEXTILES. |
| The Rapid Fast are stabilized Azoic Dyestuffs specially prepared for printing. They are applied to the fiber in one operations. When developed under acid condition bright full shades are obtained which possess very good fastness properties. Due to cross coupling which may occur between certain Rapid Fasts, proper care should be taken when using mixtures of Rapid Fast as resultant shade obtained is un-predictable. Dyestuffs of others groups may be used to supplement the color range, particularly for greens and blues. As the Rapid Fast can be developed by either neutral or Acid ageing colors of Rapid Fast vat or Rapid Sols may be printed alongside. In some cases Rapid Sols can also be printed in admixture with Rapid Fast eg., For producing Green shade, Rapid Fasts are largely used in block and screen printing, some printers prefer particularly for Rapid Fast L.Y. 3 GH, RED RH, G.Y. 2 RA, G.Y. IGK, to expose undeveloped print to sunlight and then acid developed. |
| PRINTING RECIPE FOR RAPID-FAST. |
| Rapid Fast Dyestuffs (Powder) |
50 Parts |
40 parts |
| Caustic Soda Solution (1:2) 33% W/W |
30 Parts |
30 Parts |
| Methylated Spirit |
20 Parts |
20 Parts |
| Boiling Water |
200 Parts |
200 Parts |
| Thickening (Neutral) |
695 Parts |
700 Parts |
| Wetting Agent |
5 Parts |
5 Parts |
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1000 Parts |
1000 Parts |
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| After printing the material is dried and developed by one of the following processes. |
- STEAMING PROCESSES:- The printed material
is steamed for 2 to 4 minutes and then developed in following
dye bath at 160 Dec. to 175 Dec. F.
40 CC ACETIC ACID - PER LITRES
25 GMS GLAUBER SALT - PER LITRES
- HANGING PROCESS :- The printed material
is hang for 12 to 14 Hrs. in moist and warm rood and then
passed through following bath at 80 Dec. to 90 Dec.
30 gms SULPHURIC ACID - PER LITRES
30 gms SODIUM NITRITE - PER LITRES
The printed material is then washed immediately in cold water
with little soda-ash, till all traces of acid neutralized.
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| © Copyright 2011 JAGSON COLORCHEM Ltd., All Rights Reserved. |
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