Disclosed is a weaving machine, including: a yarn tensioning system for keeping a pile-warp yarn under tension, including a local control unit, a drive motor Wand a drive roller; and a detection device for detecting abnormal variations in the pile-forming, including: a measuring system, for measuring, with the aid of the drive motor and the drive roller, pile-warp yarn consumption x.sub.m of the pile-warp yarn per cycle unit of one or more weft insertion cycles; a reference system, for determining for each cycle unit whether the pile-warp yarn is interlaced in a figure-forming manner and for determining the expected pile-warp yarn consumption x.sub.t; and a computing system, for comparing the measured with the expected pile-warp yarn consumption when the pile-warp yarn is interlaced in a figure-forming manner, and for detecting, on the basis of this comparison, abnormal variations.

In addition, disclosed is an associated method for detecting abnormal variations in pile-forming in a weaving machine.

Disclosed is a weaving machine, including: a yarn tensioning system for keeping a pile-warp yarn under tension, including a local control unit, a drive motor Wand a drive roller; and a detection device for detecting abnormal variations in the pile-forming, including: a measuring system, for measuring, with the aid of the drive motor and the drive roller, pile-warp yarn consumption x.sub.m of the pile-warp yarn per cycle unit of one or more weft insertion cycles; a reference system, for determining for each cycle unit whether the pile-warp yarn is interlaced in a figure-forming manner and for determining the expected pile-warp yarn consumption x.sub.t; and a computing system, for comparing the measured with the expected pile-warp yarn consumption when the pile-warp yarn is interlaced in a figure-forming manner, and for detecting, on the basis of this comparison, abnormal variations.

In addition, disclosed is an associated method for detecting abnormal variations in pile-forming in a weaving machine.

A method for weaving pile fabrics with pile-free zones, in which, on a weaving loom, in successive series of at least two successive weft insertion cycles in each case at least one ground weft thread (1) and at least two effect weft threads (2),(3) having mutually different appearance-determining properties are inserted at well-defined weft-insertion levels, in which the effect weft threads (2),(3) in each series are inserted in successive weft insertion cycles, and in which, in order to create a predetermined effect in at least one pile-free zone, the warp threads (4-7); (12-22); (101-104) are positioned with respect to the weft insertion levels such that at least one effect weft thread (2),(3) runs on the pile side substantially uncovered.

A method for weaving pile fabrics with pile-free zones, in which, on a weaving loom, in successive series of at least two successive weft insertion cycles in each case at least one ground weft thread (1) and at least two effect weft threads (2),(3) having mutually different appearance-determining properties are inserted at well-defined weft-insertion levels, in which the effect weft threads (2),(3) in each series are inserted in successive weft insertion cycles, and in which, in order to create a predetermined effect in at least one pile-free zone, the warp threads (4-7); (12-22); (101-104) are positioned with respect to the weft insertion levels such that at least one effect weft thread (2),(3) runs on the pile side substantially uncovered.

A method for manufacturing fabric that passes colonnaded light is described herein. The method includes weaving a first yarn and a second yarn to create a woven fabric and weaving a light emitting yarn through the woven fabric, wherein the light emitting yarn creates a plurality of loops of light emitting yarn on at least one side of the woven fabric. The method also includes finishing the woven fabric to create columns of light emitting yarn throughout the fabric by removing the plurality of loops.

The invention relates to various mutually combinable embodiments of a weaving machine or loom that comprises at least one guide device with at least one guide unit (32, 34) for the contacting guidance of a woven fabric (82) in the area of the weaving reed beat-up plane (14). In this regard, according to an embodiment, a control unit (15) is provided, which is embodied for controlling at least one drive (38, 39) for the at least one guide unit (32, 34), wherein for the actuation the control unit (15) processes informations that are related to the woven fabric structure in the area of the weaving reed beat-up plane (14), and/or informations regarding the position of the warp threads (80a, 80b) in the open loom shed. The invention also relates to methods for guiding a woven fabric in the area of the weaving reed beat-up plane (14).

Disclosed is a weaving machine, including: a yarn tensioning system for keeping a pile-warp yarn under tension, including a local control unit, a drive motor Wand a drive roller; and a detection device for detecting abnormal variations in the pile-forming, including: a measuring system, for measuring, with the aid of the drive motor and the drive roller, pile-warp yarn consumption x.sub.m of the pile-warp yarn per cycle unit of one or more weft insertion cycles; a reference system, for determining for each cycle unit whether the pile-warp yarn is interlaced in a figure-forming manner and for determining the expected pile-warp yarn consumption x.sub.t; and a computing system, for comparing the measured with the expected pile-warp yarn consumption when the pile-warp yarn is interlaced in a figure-forming manner, and for detecting, on the basis of this comparison, abnormal variations. In addition, disclosed is an associated method for detecting abnormal variations in pile-forming in a weaving machine.

Disclosed is a weaving machine, including: a yarn tensioning system for keeping a pile-warp yarn under tension, including a local control unit, a drive motor Wand a drive roller; and a detection device for detecting abnormal variations in the pile-forming, including: a measuring system, for measuring, with the aid of the drive motor and the drive roller, pile-warp yarn consumption x.sub.m of the pile-warp yarn per cycle unit of one or more weft insertion cycles; a reference system, for determining for each cycle unit whether the pile-warp yarn is interlaced in a figure-forming manner and for determining the expected pile-warp yarn consumption x.sub.t; and a computing system, for comparing the measured with the expected pile-warp yarn consumption when the pile-warp yarn is interlaced in a figure-forming manner, and for detecting, on the basis of this comparison, abnormal variations. In addition, disclosed is an associated method for detecting abnormal variations in pile-forming in a weaving machine.

A method for manufacturing fabric that passes colonnaded light is described herein. The method includes weaving a first yarn and a second yarn to create a woven fabric and weaving a light emitting yarn through the woven fabric, wherein the light emitting yarn creates a plurality of loops of light emitting yarn on at least one side of the woven fabric. The method also includes finishing the woven fabric to create columns of light emitting yarn throughout the fabric by removing the plurality of loops.

A weaving machine includes a shed forming device, a weft insertion device, and a weaving reed that beats up the weft threads at a beat up plane against an edge of the woven fabric. A guide device extends over a width of the woven fabric and is driven by a drive, the guide device being one or both of an upper guide unit that contacts a top surface of the woven fabric or a lower guide unit that contacts a bottom surface of the woven fabric. A control unit controls alternating movement of the guide unit along the direction of thickness of the woven fabric as the fabric is being woven based on information related to one or both of a structure of the woven fabric in the area of the beat up plane or a position of the warp threads in the open loom shed.