FIBRE ABSORBING IN NEAR INFRARED AREA AND FIBROUS ITEM THAT APPLIES IT Russian patent published in 2010 - IPC D06M11/48 

FIELD: textile, paper.

SUBSTANCE: invention relates to technology for production of fibres, which are able to absorb infrared radiation of solar light and may be used to produce winter clothes, interiors and leisure goods with improved ability to hold heat. Fibre, which absorbs in near infrared area, includes microparticles of tungsten oxide, level of content of which makes from 0.001 to 80 wt %. Microparticles have grain size from 1 nm to 800 nm and represent microparticles of tungsten oxide of common formula WO_x, where 2.45≤x≤2.999, and microparticles of complex tungsten oxide of common formula M_yWO_z, where M - Cs or Rb, 0.001≤y≤1.0; and 2.2≤z≤3.0.

EFFECT: fibre holds heat well, demonstrates high transparency, which does not deteriorate design of produced garments, and is cheap.

11 cl, 1 tbl, 10 ex