| 摘要 |
Disclosed is a method for enzyme desizing cotton in a supercritical carbon dioxide fluid, belonging to the technical field of textile dyeing and finishing, and designed in order to solve the problems of conventional desizing processes, such as high energy consumption and detriment to the environment. The enzyme desizing method comprises the following steps: A. an appropriate amount of surfactant is dissolved in a mixed solution of alcohol and water having a volume ratio of 1:2 to 1:5; B. a desizing enzyme having a weight of 0.1% to 20% of the weight of the cotton product to be processed is added to the mixed solution, which is stirred until the system is clarified, to obtain a desizing working solution; C. the desizing working solution is placed into a desizing liquid storage kettle of an enzyme desizing apparatus, and the enzyme desizing apparatus is placed into a supercritical carbon dioxide fluid handling system having a circulating apparatus; D. after closing the system, the circulating apparatus is activated; under the conditions of a certain supercritical fluid, the desizing working solution enzymatically treats the slurry of the cotton product to be processed. The present invention achieves enzyme desizing pretreatment of a cotton product in a supercritical carbon dioxide fluid, and is energy-saving and environmentally friendly. |
