The cost of energy and present market demand for special dyeing effects have created a situation which has resulted in a number of mechanical innovations designed to change the character of textile dyeing. The present work investigates a novel machinery concept and unconventional continuous dyeing process. The process is accomplished by applying the dye liquor to the fabric using the 'FKO system' (Foster Khaled Oulton). The original concept involves preheating and removal of air from the fabric by saturated and superheated steam under pressure in a continuous manner. After passage through a labyrinth seal, the FKO system heats the ecru fabric using saturated or superheated steam under pressure and the fabric then passes through the dye liquor. When the ecru fabric is presented to the dye liquor, it is hot, swollen and air free. A variety of fabrics have been tested, including cotton, polyester, wool, cotton/polyester and cotton/wool union fabrics. The use of compressed air fed labyrinth seals allows high speed, non-contact expression of surplus liquid. Expression perfonnance is found to be equal to, or better than, that produced by the heaviest available mangle systems and gives more controlled variable expression values. The application of different types of computer feedback control is discussed. Methods for the control of temperature, pH and level parameters of the dye liquor in the FKO system are suggested.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:602947 |
| Date | January 2002 |
| Creators | Hamam, Khaled K. K. |
| Publisher | University of Manchester |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
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