IR 염색기를 이용한 천연염색에 관한 연구

A Study on the Natural Dyeing with IR Dyeing Machine

Although the number of naturally dyed products is increasing, natural dyeing companies still use their cottage industrial system. However, as companies have increasingly applied for a patent and developed technology, technological advancement for color diversity and mass production is necessary. Therefore, we compared the color strength，, color difference, and color fastness to washing’ between dyed goods made through natural dyeing and ones made by infrared ray dyeing machine. The overall results were came out as below. 1. When we dyed indigo, soppan wood, and turmeric, the fabrics which were dyed by using infrared ray dyeing machine showed higher color strength compared to ones that were naturally dyed. To be specific, Horizontal-type machine was more effective than Rotary-type machine in dyeing the material with higher color strength and evener level dyeing. By looking these results, we could notice that dyeing with machines showed evener heat treatment and better stirring effect, and Horizontal-type is better than Rotary-type for level dyeing. 2. When we dyed indigo, soppan wood, and turmeric, the results of color difference，were showed as follows: IR Rotary-type machine(Domestic) = IR Rotary-type machine(Imported) < IR Horizontal-type machine. Although the results of color difference，made by Horizontal-type machine’s beating technique were not distinguished with the naked eye, we could find out that it dyed the materials with higher color strength through computer color matching system. 3. When we dyed fabric by indigo, soppan wood, and turmeric, natural dyeing and dyeing with ER machine had almost no difference with color fastness to washing’. From this result, we could imply that the method of dyeing does not give a big influence to color fastness to washing，