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Unformatted text preview: R C, 5 g/L of Superclear R 80-N, and 455 mL of water. 4. Saturate the fabric in the dye dispersion and run it through the padder many times. 5. Weigh and calculate the %WPU of the fabric and dry. 6. Create a hydro reduction bath with 25 mL of NaOH, 1.5 g of sodium hydrosulfite, 15 mL of sodium chloride, and 485 mL of water. 7. Place bath in gibbs machine and heat to 70-80 o C. Immerse remaining fabric in bath for 20 minutes. 8. Remove fabric, squeeze excess bath, cut in half, and dry one half of the fabric. 9. Create an 800 mL scouring bath with 32 mL of 5% stock soap solution and 768 mL of water. Place remaining fabric in bath over hot plate for 10 minutes, rinse, extract and dry. 10. Compare the differences in appearance of three fabric strips. 11. Use AATCC Test Method 8 to test all three samples for color fastness to crocking with the AATCC Chromatic Transference Scale....
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- Spring '10
- Sodium, Sodium chloride, Sodium hydroxide, Dye, C.I. Vat Orange, Basogal R C