PROCESS FOR COATING YARNS AND FIBRES IN TEXTILE OBJECTS
Textile bodies may be coated by physical or chemical vapour deposition in the gaseous phase. The layers deposited on the fibres or filaments have a high quality. It is thus possible to coat filaments or fibres without leaving any pores even with very thin layers, which cause however an imperceptible increase of the total volume of the textile object. Because of the high mobility of the coating material particles, even critical spots, such as the chaining spots in meshed or woven goods, are reliably coated. The same is valid also for complex designed, three-dimensional textile shaped bodies. Besides coatings by simple deposition, surface polymerisations may also be carried out, forming impenetrable layers on the textile material, which either protects it against the environment (allergy, sensitivity to air or light) or confer new properties to it (electric conductivity, antiadhesive coating). Coating in the gaseous phase also prevents in many cases the textile body to be processed from drying out.