Tufted fabric with pile height differential
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United States of America Patent
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Jul 18, 2017
Grant Date -
Oct 6, 2016
app pub date -
Apr 1, 2016
filing date -
Apr 1, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method for forming synthetic/artificial grass or turf products in which a series of tufts of artificial/synthetic grass filaments or yarns are formed in a backing material with various graphic pattern effects being formed therewith. The system generally will include a pair of needle bars each having at least one row of needles mounted along a tufting zone and reciprocated through the backing to a desired penetration depth, and will present a desired set or group of yarns to a series of gauge parts mounted at differing elevations. A first or upstream one of the needle bars will be shifted to an off-gauge position to move the needles thereof into positions so as to not be engaged by their associated gauge parts. The yarns fed to these needles further can be controlled to substantially pull back or otherwise prevent tufts of such yarns from being formed in the backing.
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