Abstract: A device for maintaining the crimping of textile fibers or filaments during subsequent setting treatment, located in a line for treating filaments by crimping and setting having a crimping machine (1), whereby this device is connected to the outlet of the crimping machine (1) and consists of two perforated conveyor belts (2), between which is fed the plug of textile fibers or filaments (3) coming from the crimping machine (1) and which pass through a setting oven or other setting machine to arrive at a filament uptake area. The device is provided with a member (6) for maintaining the continuity of the pressure on the plug of textile fibers or filaments (3) at the outlet of the crimping machine (1) and during the entire setting operation, whereby this member cooperates with the perforated conveyor belts (2).

Abstract: Thread-crimping machines with enhanced throughput are detailed. One or more drive rolls forming parts of the machines may be grooved to group centrally the entering threads without materially adversely impacting driving and crimping operations of the machines. Thread-focusing components also may be employed upstream of the inlet areas.

Abstract: A thread accumulation device includes a discharge chute (13) for receiving and guiding a strand that is formed by a thread take-up device and a carriage for taking up a thread spiral, guided on the discharge chute (13) and resting on the end of the strand of the side that is opposite to the thread take-up device. At the outlet of the thread take take-up device, the discharge chute (13) is equipped with a transport unit (16) that adapts to the inside shape of the discharge chute (13). The invention can be applied more particularly in the field of the textile industry, in particular the treatment of thread.

Abstract: Process for treating threads by knitting-unraveling includes: knitting several individual threads (2) on a multi-feed knitting machine (1); carrying out one or more heat, chemical or other treatments, in one or more chambers (7); carrying out, in an unraveling unit (4), an unraveling with pulling on the first knit thread and winding or beaming the unraveled threads (2) individually or carrying out on these individual threads another treatment operation or a production operation, optionally with an intermediate accumulation of the threads. The invention can be applied more particularly in the field of the textile industry, in particular the treatment of threads, particularly texturing by knitting-unraveling.

Abstract: The present invention relates to a machine for the thermal treatment of threads, which comprises a positioning means (8) and a position control means (9) acting on a very short area in the immediate proximity of each sealing head, where said positioning means (8) consists of an axle (10) for pivoting the frame or moving body holder (3), which is connected directly to said frame or moving body holder (3), and of an actuator (11) for pivoting the frame or moving body holder (3) acting on said frame or moving body holder (3) through the intermediary of a rod linkage (12), which is mounted between the edge of the frame or moving body holder (3) and said actuator (11). Machine characterized in that the device for positioning the conveyor belt (2) during its advance in the pressurized enclosure (1) is provided, on the side over which the sensor extends, namely below or above the conveyor belt (2), with a means for holding the conveyor belt (2) at a height separation with respect to the position control means (9).

Abstract: A device for maintaining the crimping of textile fibers or filaments during subsequent setting treatment, located in a line for treating filaments by crimping and setting having a crimping machine (1), whereby this device is connected to the outlet of the crimping machine (1) and consists of two perforated conveyor belts (2), between which is fed the plug of textile fibers or filaments (3) coming from the crimping machine (1) and which pass through a setting oven or other setting machine to arrive at a filament uptake area. The device is provided with a member (6) for maintaining the continuity of the pressure on the plug of textile fibers or filaments (3) at the outlet of the crimping machine (1) and during the entire setting operation, whereby this member cooperates with the perforated conveyor belts (2).

Abstract: A thread accumulation device includes a discharge chute (13) for receiving and guiding a strand that is formed by a thread take-up device and a carriage for taking up a thread spiral, guided on the discharge chute (13) and resting on the end of the strand of the side that is opposite to the thread take-up device. At the outlet of the thread take take-up device, the discharge chute (13) is equipped with a transport unit (16) that adapts to the inside shape of the discharge chute (13). The invention can be applied more particularly in the field of the textile industry, in particular the treatment of thread.

Abstract: The present relates to a device for positioning the conveyor belt running through machines for thermal treatment of filaments, essentially constituted by a pressurized chamber (1) traversed by a conveyor belt (2) enclosed at each end by a sealing head mounted on a frame or movable door (3) connected to the pressurized chamber (1) by means of a bellows (4), each sealing head comprising a head of horizontal superposed rollers (5, 6) which are pressed against the opposite surfaces of the conveyor belt (2). Device characterized in that it comprises a positioning means (8) and a position control means (9) acting on a very short region immediately adjacent each sealing head. The invention is more particularly applicable in the field of the textile industry, in particular of the field of treating filaments by means of thermal treatment machines currently called heat setting machines.

Abstract: Device for joining yarns between two machines for treating yarns. The present invention relates to a device for joining yarns between two machines for treating yarns, such as thermofixing and winding or beaming machines or steaming and winding or beaming machines or between means of feeding a multitude of yarns and weaving or tufting machines, characterized in that it is primarily made up of a supporting frame (1), a means (2) for individually guiding the yarns coming from the downstream machine and inserting these yarns in the means (3) for joining by entangling, by fusion or otherwise, a means (4) of individually bringing in and temporarily holding the yarns coming from the upper machine (4), a device (5) for inserting these yarns in the means (3) for joining by entangling, by fusion or otherwise, sets (6 to 8) for locking the yarns in position before and during the joining by entangling, by fusion or otherwise, and a means of cutting the free ends of the yarns before said joining.

Abstract: The present invention relates to a process and device for knotting a yarn on a package. The process consists essentially in gripping the end (3) of the yarn and positioning the yarn under tension in prolongation of the last wound turn, in producing a slack loop parallel to the end (3) of the tensioned yarn, then in forming a twist by twisting a length of the slack loop with end (3) of the tensioned yarn, in then tightening the obtained twist on the package (1) and in cutting the remaining end of the yarn. The invention is more particularly applicable in the field of the textile industry, in particularly for the winding of yarns and particularly knotting an end of the yarn on a package.

Abstract: Device for joining yarns between two machines for treating yarns. The present invention relates to a device for joining yarns between two machines for treating yarns, such as thermofixing and winding or beaming machines or steaming and winding or beaming machines or between means of feeding a multitude of yarns and weaving or tufting machines, characterized in that it is primarily made up of a supporting frame (1), a means (2) for individually guiding the yarns coming from the downstream machine and inserting these yarns in the means (3) for joining by entangling, by fusion or otherwise, a means (4) of individually bringing in and temporarily holding the yarns coming from the upper machine (4), a device (5) for inserting these yarns in the means (3) for joining by entangling, by fusion or otherwise, sets (6 to 8) for locking the yarns in position before and during the joining by entangling, by fusion or otherwise, and a means of cutting the free ends of the yarns before said joining.

Abstract: A method for crimping yarn wherein the yarn is fed into a compaction channel of a stuffer box to obtain uniform crimping, and the crimped yarn is pre-set and guided to the outlet of the stuffer box by a pre-setting fluid. A pre-setting and guiding chamber of the stuffer box has a cross-section of generally polygonal shape that is larger than that of the compaction channel.

Abstract: A method for crimping yarn wherein the yarn is fed into a compaction channel of a stuffer box to obtain uniform crimping, and the crimped yarn is pre-set and guided to the outlet of the stuffer box by a pre-setting fluid. A pre-setting and guiding chamber of the stuffer box has a cross-section of generally polygonal shape that is larger than that of the compaction channel.

Abstract: The present invention relates to a process and device for knotting a filament on a bobbin.

Abstract: A process of dyeing by deposition of spots of dyebaths of different colors on moving filaments, in a series of application stations, by abrupt cyclic or pseudo-random interruption of the deposition in the application stations, and a device for practicing this process. The process is characterized in that, in each application station, the moving filaments are abruptly taken out of contact with the dyebath by a linear or pseudo-linear actuating device acting on the dyebaths or on the moving filaments. The invention is more particularly applicable to the field of the textile industry, in particular the treatment of filaments, particularly by dyeing of the “spaced dyeing” type.

Abstract: A machine for continuously dyeing textile yarns (20) comprises at least one dye application station (15A). The latter comprises dye-sprayer (14) and protective sheat (21) through which the yarns (20) extend, and which has an open portion (21a) situated in line with the dye-sprayer (14) and in which the yarns (20) are opposite dye-sprayer (14). A shutter (16) is arranged between the textile yarns (20) and the dye-sprayer (14) in order alternately to intercept or let through the jet (17) of dye sprayed towards the yarns (20).

Abstract: In a method for continuously dyeing textile yarns (14), the yarns travel continuously in front of a succession of stations (15a, 15b, 15c) for applying dyes of different colors, each station applying a series of spots onto the yarns (14), so that each yarn includes a succession of spots forming a pattern extending over a certain length (L) of the yarn (14) and which is continuously repeated. The stations (15a, 15b, 15c) for applying the dye are commanded individually in order to corrupt the repetitiveness of the successive patterns. The method is useful for improving the quality of carpets obtained from textile yarns (14).