The Effect Of Sulfur Dyeing Conditions On The Functional Properties Of Jeans Trousers Fabrics Using Environmentally Safe Materials

It is well known that the textile industries used many chemicals in various industrial processes, and most of these chemicals cause pollution, Some have complaints and some of them have a reducing or oxidizing, which leads to damage to the hardware and fabrics, have also infect human disease or poisoning. Among the most important reduced materials for sulfur dyes are sodium sulfide, and sulfur dyeing pigments cause significant environmental problems, which frees sodium sulfide gas hydrogen sulfide, which causes many risks. However enzyme  treatment entry in fabrics make it productive Eco-friendly and confirms the success of enzymes effectiveness in dealing with fabrics and softening leading to improve the final quality of the product and enable competition both globally or local scale.SO that search was interested in finding a material reductase safe environmentally alternative to sodium sulfide and the use of the enzyme to increase the efficiency of the fabric used, in order to reach the most suitable conditions for  sulfur dyeing achieve the best functional properties of jeans trousers fabrics using environmentally safe materials.
* It was used 100% cotton fabric with a textile structure Twill 3/1, and the thread number for each of the warp and weft 30/1 ring spinning (English numbering), and after the primary treatment of fabric and then the samples treatment with cellulase enzyme in three concentrations (1, 2, 3) g / l for the most suitable concentration, then was the use of an enzyme processing time to three times (30,45, 60) minutes, was conducted laboratory tests to determine the most suitable concentration of the enzyme and the most appropriate time processing enzyme, and then applied when a sulfur dyeing process with replacement of sodium sulfide from the dye bath in three glucose concentrations (1.5, 3, 4.5) g.
After that was conducted laboratory tests to get a better concentration of glucose and comparison between samples of sodium sulfide and glucose, fabric used has been getting from Misr Company for spinning and Weaving in El-Mahalla El-Kobra and were conducted laboratory tests by a factor of quality in the same company.
* After reaching the results of these tests were appropriate statistical method applied and assess the overall quality of these results. The study foundthe following results:
1. The concentration of the used enzyme 2 g / l is the most appropriate for the measured functional properties by quality factor 83.52%, the concentration of the used enzyme 3 g / l is the least for the measured functional properties by the quality factor 79.35%.
2. Enzyme treatment time of 45 minutes is best for the measured functional properties by quality factor 91.32%, enzyme treatment time is 60 minutes at least for the measured functional properties by the quality factor 84.55%.
3. Fabric dyed using material reduced glucose concentration of 4.5 g of the solution is the best for the tensile strength and the percentage of elongation and in the directional warp and weft by a factor of quality 98.59%, fabric dyed using material reducing sodium sulfide is the least for tensile strength and percentage elongation and in the directional warp and weft by a factor of quality 90.42%.
4. Fabric dyed using material reducing glucose concentration of 1.5 g of the solution is the best for color depth and stability properties and that by a quality factor 76.10%, fabric dyed using quality material reducing sodium sulfide is the least for the color depth and the properties of the Stability by quality factor 66.00% .