Sueding means in a textile fabric-producing machine
AssigneeGuilford Mills, Inc.
InventorsArne Nielsen, Majid Moghaddassi
Life of this patent
Estimating the term…
Abstract
A textile warp knitting machine is equipped with a driven sandpaper-covered sueding roll extending the full width of the fabric take-up section of the machine for peripheral engagement of the warp knitted fabric with the sueding roll to produce a raised suede-like nap on one fabric surface. The sueding roll is driven oppositely to the direction of fabric travel. The fabric is guided to contact the sueding roll periphery at two opposite locations thereon.
Claims23
In a textile fabric-producing machine of the type having means for manipulating yarn to form a fabric in flat open-width form and a location following the yarn manipulating means for take-up of the fabric, the improvement comprising means for sueding the fabric in full width form intermediate the yarn manipulating means and the take-up location, the sueding means comprising a sueding roll having an abrasive peripheral surface, means for directing the fabric to t ravel intermediate the yarn manipulating means and the take-up location in peripheral surface engagement with the sueding roll, the fabric directing means including dancer rolls means for monitoring tension and speed fluctuations in the fabric and adjusting the fabric directing means in relation thereto, and means for driving rotation of the sueding roll at a peripheral surface speed compatibly related to the traveling speed of the fabric.
In a textile warp knitting machine of the type having at least one needle bar for manipulating yarn to knit a fabric in flat open-width form and a driven take-up roll for winding of the fabric, the improvement comprising means for sueding the fabric in full width form intermediate the needle bar and the take-up roll, the sueding means comprising a sueding roll having an abrasive peripheral surface formed of sandpaper, a plurality of guide rolls for directing the fabric to travel intermediate the needle bar and the take-up roll in peripheral surface engagement with the sueding roll at two distinct locations thereon, dancer roll means for monitoring tension and speed fluctuations in the fabric and associated with the take-up roll for adjusting the driven speed thereof in relation to the fluctuations, and means for driving rotation of the sueding roll at a peripheral surface speed compatibly related to the peripheral surface of the sueding roll opposite the direction of the travel of the fabric.
In a textile fabric-producing machine of the type having means for manipulating yarn to form a fabric in flat open-width form and a location following the yarn manipulating means for take-up of the fabric, the improvement comprising means for sueding the fabric in full width form intermediate the yarn manipulating means and the take-up location, the sueding means comprising a sueding roll having an abrasive peripheral surface, means for directing the fabric to travel intermediate the yarn manipulating means and the take-up location in peripheral surface engagement with the sueding roll, and means for driving rotation of the sueding roll at a peripheral surface speed compatibly related to the traveling speed of the fabric, the fabric directing means being arranged for engaging the fabric with the peripheral surface of the sueding roll at two distinct locations thereon, and the fabric directing means being operative for tensioning the fabric at the locations of its peripheral surface engagement with the sueding roll to maintain engagement therebetween and for developing a relatively lesser force of engagement of the fabric with the sueding roll at the location of first engagement with the sueding roll sufficient generally only to raise the engaged surface of the fabric and a relatively greater force of engagement of the fabric with the sueding roll at the location of second engagement with the sueding roll sufficient to cut constituent yarns of the fabric.
In a textile fabric-producing machine of the type having means for manipulating yarn to form a fabric in flat open-width form and a location following the yarn manipulating means for take-up of the fabric, the improvement comprising means for sueding the fabric in full width form intermediate the yarn manipulating means and the take-up location, the sueding means comprising a sueding roll having an abrasive peripheral surface, means for directing the fabric to travel intermediate the yarn manipulating means and the take-up location in peripheral surface engagement with the sueding roll, and means for driving rotation of the sueding roll at a peripheral surface speed compatibly related to the traveling speed of the fabric, the driving means including clutch means selectively operable for idling rotation of the sueding roll for non-sueding operation of the fabric-producing machine.
In a textile warp knitting machine of the type having at least one needle bar for manipulating yarn to knit a fabric in flat open-width form and a driven take-up roll for winding of the fabric, the improvement comprising means for sueding the fabric in full width form intermediate the needle bar and the take-up roll, the sueding means comprising a sueding roll having an abrasive peripheral surface formed of sandpaper, a plurality of guide rolls for directing the fabric to travel intermediate the needle bar and the take-up roll in peripheral surface engagement with the sueding roll at two distinct locations thereon, and means for driving rotation of the sueding roll at a peripheral surface speed compatibly related to the traveling speed of the fabric and in a direction at the peripheral surface of the sueding roll opposite the direction of travel of the fabric, the driving means including clutch means selectively operable for idling rotation of the sueding roll for non-sueding operation of the knitting machine.
Dependencies are inferred from the claim text.