SPACE FLIGHT UNDERWEAR Russian patent published in 2009 - IPC B64G6/00 A41B9/00 D04B1/24 

FIELD: textile, paper.

SUBSTANCE: invention relates to spaceman flight clothes and can be used in manufacturing of underwear designed for everyday wearing in standard conditions of long-term flights. According to the invention the underwear is made out of knitted fabric produced from natural silk twisted threads. In the elbow, hip and knee zones it is made from natural silk twisted threads and physically modified flax-like polyamide complex twisted threads which are simultaneously knitted into stitches. The latter threads consist of elementary profiled threads which are characterised by the following nondimensional parametres of cross section geometrical shape modification: filling level - 0.34±10%, deformation level - 1.8±10%, branching level - 75±10%, irregularity level - 1.45±10%.

EFFECT: production of light, durable, wear resistant, soft, elastic flight underwear which does not produce dust irritating skin, mucous membranes of nasopharynx and breathing passages.

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