| Summary: | 碩士 === 逢甲大學 === 纖維與複合材料學系 === 106 === Dyeing is an important part of the textile wet finishing process, dyeing can make fabric or fiber have a variety of colors which can meet the needs of people application. In the dyeing process, the waste water and pollutants is a major issue, it is a big burden to the enviromet.
Dyed yarn without dyeing steps, can effectively shorten the processing steps and can also reduce environmental pollution. This study divided into two part. At the first part, Span-80、Tween-80、Tween-40、Tween-80/Tween-40 were selected as dye microcapsule interface agent, to choose the most suitable wet spinning conditions. At the second part of the experiment, added dye and dye microcapsules to prepare PVA fiber which enhance the fiber’s end of the physical properties, for example: washing fastness, heat resistance etc.
Applied SEM, TGA, FT-IR, particle size, K/S value, dyeing fastness etc equipments and methods to observe the structure, type, size of sample. This study found that the dye was successfully coated in the microcapsules, and the microcapsules also exhibit a smooth and stable surface. Tween-80 + Tween-40 as the dye microcapsule interface agent can reach the minimum average particle size of 363.1 nm, the most suitable for wet spinning processing conditions. The addition of microcapsules and dyes did not destroy the chemical structure of PVA fibers, and the heat resistance after blending was improved. Blended microcapsules of fiber fade fastness in the 3-4 level, compared with a better fastness.
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