Abstract: The present invention relates to a method for producing floor covering (including carpet and carpet tiles) with recycled content, comprising the steps of gaining CaCO3 from ground or surface water during a softening process by adding a grain to the water, grafting the CaCO3 to the grain, adding the CaCO3 to the (fluid) backing material for a carpet or carpet tile (precoat or heavy coating layer), using the thus obtained backing material in a carpet or carpet tile manufacturing process, wherein the grain comprises essentially CaCO3.

Abstract: Besides a method for manufacturing a carpet, the invention further relates to a carpet with a LRV higher than 30. In particular such carpet comprises yarns are made of PP/PA/PET/PTT/PBT, which are either white based or solution dyed based, and tufted on a white or very light woven or web substrate, such as PET and/or PP, pre-coated with a polyolefin such as HYPOD or SBR which is whitened with a filler, such as MgCO3, TiO2, ATH, and/or CaCO3, and which may comprise, in particular in the case of loose laid tiles, a secondary heavy coating consisting of a very light coloured secondary heavy coating such as a specific polyolefin, PVC, PVB, EVA or a (synthetic) bitumen, loaded with a filler pre-selected on lightness and purity as CaCO3 and/or ATH and/or specific salts, e.g. NaCl or TiO2.

Abstract: Carpet, comprising high piles and low piles, wherein a majority of the fibres which the high piles comprise is lighter in weight than the smaller fibres which the low piles comprise, and wherein particularly the high piles comprise fibres with a diversity of weights, wherein some of the fibres of the high piles have a weight of less than 15 dTex, and preferably less than 5 dTex, and the remaining fibres of the high piles have a weight of less than 25 dTex.