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Enhancing the watertightness of textile sheetlike constructions, textile sheetlike constructions thus enhanced and use thereof

  • US 20060156475A1
  • Filed: 12/21/2005
  • Published: 07/20/2006
  • Est. Priority Date: 12/27/2004
  • Status: Abandoned Application
First Claim
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1. A process for enhancing the watertightness of a porous textile sheetlike construction having fibers, comprising:

  • applying to the textile sheetlike construction in a dry state hydrophobic particles or nonhydrophobic particles having an average particle size in the range from 0.02 to 100 μ

    m, which become fixed to the fibers of the textile sheetlike construction and provide the surfaces of the fibers with a structure composed of elevations and/or depressions, wherein the elevations have a spacing in the range from 20 nm to 100 μ

    m and a height in the range from 20 nm to 100 μ

    m, and subsequently hydrophobicizing the nonhydrophobic particles.

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