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Unformatted text preview: be used for pH control. C. The substrates being treated are two 10 g samples of Orlon 75 acrylic woven fabric and two multifiber strips. D. 1. The first step in the process is to weigh the two acrylic fabrics and attach a multifiber strip to each one. 2. Prepare DYEBATH A with just water and the dye. Prepare DYEBATH B with the dye, retarder, sodium sulfate, acetic acid, Renex 36, EDTA, and water. 3. If needed adjust the pH with acetic acid in baths to 4.0-4.5. 4. Place the fabric samples on spiral holders and into the beakers in their appropriate baths. The beakers are then place in the Gibbs machine and heated to 95 o C and maintained for 20 minutes. 5. Remove beakers, rinse in warm water, and remove all chemicals through padder. 6. Evaluate multifiber strips using the Chromatic Transference Scale. 7. Make color measurements using the portable spectrophotometer....
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- Spring '10