the surface of roller 46 and the part of the back surface of product 1 u2032 that is pressed against the roller the ultimate fibre binding takes place by the provision of blade 30 which in this constitution exists of a flat blade with a working surface 33 the blade is connected to a semi spherical body 50 which serves as a heat capacitor three intermediate products 1 u2032 were made to be subjected to a fibre binding process according to the invention these products are described in table 1 all three products were based on non woven primary backings available from freudenberg weinheim germany under the tradename lutradur u2122 viz lutradur t6412 and lutradur eco respectively two different types of yarns were used the first yarn was pa6 2600 240 rdd du of aquafil arco tn italy which yarn has an uncompressed yarns thickness of about 1 mm the second one was a yarn made from recycled pet obtainable from pharr yarn mc adenville n c usa which yarn has an uncompressed yarn thickness of 1 3 mm it is noted that the latter yarn is indicated to be a u201c polyester u201d yarn by the manufacturer the yarns were applied to the backings by forming loops at the back of the backing material while at the same time extending through this backing to form piles at the front surface two cut piles as well as one loop pile intermediate product were made.