Polyamide fibers, fiber structure using same, and clothing
a technology of polyamide fibers and fiber structures, applied in the direction of application, weaving, filament/thread forming, etc., can solve the problems of insufficient improvement of limited application of clothing to clothing, and low moisture absorption and water absorption, so as to achieve high-efficiency control of humidity
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example 1
[0041](Production of Polyamide Fibers)
[0042]Nylon-6 having a reduced viscosity of 1.80 dL / g (at a concentration of 1 g / dL in orthoclorophenol at 30° C.) was used as a polyamide component (component A), and a thermoplastic modified polyvinyl alcohol (modified PVA) (product of Kuraray Co., Ltd. having a saponification degree of 98.5, an ethylene content of 8.0 mol %, and a degree of polymerization of 390) was used as a soluble component (component B). The components A and B were separately melted in different extruders, and a conjugated fiber having a cross section shown in FIG. 1 was injected through a multi-component fiber-spinning nozzle with a ratio of nylon-6:modified PVA set at 60:40 (weight ratio). Subsequently, a thread injected through a spinneret was cooled using a horizontal cooling air blower having a length of 1.0 m. Thereafter, water-free spinning oil including, as its components, an anti-static agent and a lubricating agent was applied to the thread. The thread was then...
example 2
[0065]A polyamide fiber was produced in the same manner as in Example 1, except that polyethylene terephthalate (copolymerized PET) having a limiting viscosity number [1] of 0.52 dL / g and copolymerized with 8 wt. % of polyethylene glycol having a molecular weight of 2000 and 5 mol % of 5-sodium sulfoisophthalic acid was used as the component B. The degree of orientation, the moisture absorption rate, the water absorption extension rate, and the crimp extension rate of this polyamide fiber were measured, and the evaluation of knitted fabric of the fiber was performed through a wear test. The results of these measurements and evaluation are shown in Table 1.
examples 3 and 4
[0066]As shown in Table 1, a polyamide fiber of each of these examples was produced in the same manner as in Example 1, except that nylon-6,6 (Example 3) or nylon-6 / 12 (Example 4) was used as the component A. For each fiber, the degree of orientation, the moisture absorption rate, the water absorption extension rate, and the crimp extension rate were measured, and the evaluation of knitted fabric of each fiber was performed through a wear test. The results of these measurements and evaluation are shown in Table 1.
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