Fiber materials (for example, yarns, knitted goods and woven goods) are provided which sustain texture characteristics of a natural fiber such as silk, are effectively prevented from yellowing over time due to light or sweat, are less contaminated with a residual toxic gas, and are effectively prevented from worsening in warmth retention and strength over time, but which can be produced at a lower cost. More specifically, the fiber materials having improved qualities required for clothes are obtained by bringing a chemical fiber containing 0.01 to 5.0% by weight of titanium oxide together with a natural fiber.
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