Alcantara S.p.a.

Omar Teofrasti

Carmine Carlo Ammirati

Walter Cardinali

Eraldo Spila

An artificial leather having a suede appearance and colors within the grey-black range and high color fastness comprising a microfibrous component and an elastomeric matrix; the microfibrous component consisting of polyester microfibers having a count of 0.01 to 0.50 dtex; the elastomeric matrix consisting of polyurethane consisting of soft and hard segments; the ratio between the elastomeric matrix and the microfibrous component ranging from 20/80 and 50/50 by mass; the microfibrous component containing carbon black pigment in a percentage of 0.05 to 2.00% by mass; the elastomeric matrix containing carbon black pigment in a percentage of 0 to 10% by weight; the carbon black always having an average dimension smaller than 0.4 microns. The average length of the tassel is between 200 and 500 microns. The soft segments consist of at least one polycarbonate diol selected from polyalkylene carbonate diols and at least one polyester diol. The hard segments consist of urethane groups deriving from the reaction between free isocyanate groups and water. The total content of carbon black is between 0.025 and 6% by weight.

Microfibrous fabric having a suede appearance, within the colour range of grey and black, with a high light fastness, and preparation method thereof

In one embodiment, a process is disclosed for the preparation of a multilayer intermediate product impregnated with polyurethane that is useful for the production of soft synthetic leather having enhanced mechanical resistance. The process comprises the steps of: a. producing a microfibrous non-woven intermediate product that includes microfibers of one or more polymers selected from the group consisting of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyacrylonitrile, and polyamide; b. producing an intermediate multilayer product by adhesive coupling, the intermediate multilayer product including at least one layer of the non-woven microfibrous intermediate product and at least one layer of a reinforcing textile product; and c. impregnating the multilayer intermediate product with one or more polyurethane solutions, thereby obtaining a multilayer intermediate product impregnated with polyurethane.

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Avigliano Umbro, Italy

Omar Teofrasti