Emissivity Measurement of Semitransparent Textiles

الملخص EN

In the textiles production industry it is more and more common to advertise new textiles, especially for sportswear, by claiming their ability to emit IR radiation in the long wave band at a higher degree with respect to normal clothes, that is highly beneficial to improve sporting performances.

Three textiles are compared, one normal and two “special,” with Ag+ ions and carbon powder added, with different colors.

The emissivity of the textiles has been measured to determine if it is increased in the “special” textiles with respect to the normal one.

No substantial increase has been noticed.

Nonetheless, the test implied some nonstandard procedures due to the semitransparent nature of the textiles, in comparison with the normal procedure that is commonly used on opaque surfaces.