A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
NEEDLE FELT
The invention relates to a binderless needle felt (1) of mineral wool, comprising a plurality of fibers arranged predominantly in parallel to the large areas of the needle felt (1), and individual fibers at needling points which arranged predominantly transversely to the large areas by a needling process and by which the fibers of the needle felt (1) are felted such that the needle felt (1) is adapted to be handled as one element. This needle felt (1) is characterized in that the density of the needling points at a first large area (2) is at least 15 needling points/cm2, that the number of the fibers arranged transversely to the large areas decreases from the first large area (2) toward an opposite second large area (3) of the needle felt (1), and that a near-surface region at the second large area (3) is substantially free from fibers arranged transversely to the large areas. Thus, an improved needle felt is achieved which avoids the drawbacks in prior art and comprises an improved insulating effect with at least equivalent handling properties.
NEEDLE FELT
The invention relates to a binderless needle felt (1) of mineral wool, comprising a plurality of fibers arranged predominantly in parallel to the large areas of the needle felt (1), and individual fibers at needling points which arranged predominantly transversely to the large areas by a needling process and by which the fibers of the needle felt (1) are felted such that the needle felt (1) is adapted to be handled as one element. This needle felt (1) is characterized in that the density of the needling points at a first large area (2) is at least 15 needling points/cm2, that the number of the fibers arranged transversely to the large areas decreases from the first large area (2) toward an opposite second large area (3) of the needle felt (1), and that a near-surface region at the second large area (3) is substantially free from fibers arranged transversely to the large areas. Thus, an improved needle felt is achieved which avoids the drawbacks in prior art and comprises an improved insulating effect with at least equivalent handling properties.
NEEDLE FELT
NADELFILZ
FEUTRE AIGUILLETÉ
BIHY LOTHAR (author) / BUGERT KARL-HANS (author) / EVERT DANILO (author) / LANGE HAKAN (author) / LECOMTE ROMAIN (author) / MEHRLÄNDER THOMAS (author) / PASSON ULRICH (author) / RENNHOLZ GERHARD (author) / ZYSIK ANTON (author)
2017-05-17
Patent
Electronic Resource
English
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