30results about How to "Good quality yarn" patented technology

The invention relates to a method for spinning staple fibres on ring-spinning machines, wherein a staple fibre composite is drawn in a drawing frame and, during exit from the drawing frame, is twistedto form a thread and is wound up by means of a traveler device. The fibre composite (F') which emerges from the drawing frame runs through a thread guide device (1) which has a twisting apparatus (10) which is equipped with a brake device (13, 13'). The completely twisted thread (F) is guided over a spindle attachment (33) which is provided with grooves (32, 35), immediately after leaving the twisting apparatus (10). The method is carried out by way of an apparatus for spinning staple fibres on ring-spinning machines, which apparatus comprises a thread guide device which has a twisting element which is arranged at a spacing above the upper end of the ring spindle and is coupled to the ring spindle via a magnetic force field. An attachment (33) which is arranged on the ring spindle (3) andhas grooves (32, 35) on its circumference for driving the thread (F) which emerges from the twisting element (10) is connected behind the twisting element (10).

The invention relates to textile machinery components, particularly to a yarn guiding device, which comprises an upper fixed plate and a lower fixed plate arranged in parallel, wherein center holes are both formed in the centers of the upper fixed plate and the lower fixed plate; more than three upper edge holes and lower edge holes are formed on the upper fixed plate and the lower fixed plate; a distance from the upper center hole to the upper edge holes on the upper fixed plate is larger than that from the lower center hole to the lower edge holes on the lower fixed plate; and yarn guides are arranged in the upper and lower center holes and the upper and lower edge holes. The yarn guiding device has the advantages that the structure is simple, silk yarns can be threaded conveniently, and compound yarn ballooning check twisting points can be directly formed on silk outlets of thermotropic silk and multistrand sewing threads. The yarn guiding device can precisely cover thermotropic silk quilt covers among the multistrand sewing threads, and therefore, the yarn guiding device solves the technical problems that in the prior art, the thermotropic silk quilt covers can not be covered among the ultistrand sewing threads precisely, the silk outlets can not directly form the compound yarn ballooning check twisting points, assembled structures are complex, the operation is difficult, and raw material and labor force are wasted, so that finished products of the yarns have poor quality.

The invention discloses flame-retardant anti-molten-drop antistatic core-spun yarn and a preparation method thereof. The preparation method of the flame-retardant anti-molten-drop antistatic core-spunyarn comprises the following steps that aramid fibers, flame-retardant viscose fibers and antistatic fibers are mixed and then subjected to combing, drawing and roving in sequence, and the mixture and mixed nylon filaments are subjected to core spun yarn spinning; spooling is carried out, and the core-spun yarn is obtained, wherein the nylon filaments are a mixture obtained through drawing and mixing of flame-retardant nylon filaments and non-flame-retardant nylon filaments. According to the method, the aramid fibers, the flame-retardant viscose fibers, the flame-retardant nylon filaments, the high-strength non-flame-retardant nylon filaments and conductive fibers serve as main components, and a flame-retardant anti-molten-drop fabric is prepared through blending spinning and weaving technologies. The fabric has the advantages of being retardant to flame, resistant to molten drops, high in strength, antistatic, easy to dye, low in cost, simple in process, good in yarn quality and thelike, can be used for meeting requirements in the aspect of special operations and can also meet requirements in the aspects of uniforms and the like.

The invention discloses an anti-droplet, wear-resistant, anti-static and flame-resistant nylon blended camouflage cloth and a preparation method thereof. The preparation method comprises the following steps: (1) After mixing aramid fiber, flame-retardant viscose fiber and antistatic fiber, sequentially combing, drawing and roving to obtain a roving; As the core, flame-retardant nylon filaments are wound on the outer layer, spun yarns are spun, and then winded to obtain blended wrapping core-spun yarns; (2) the blended wrapping core-spun yarns are woven to obtain gray cloth, and the The gray cloth is sequentially subjected to scouring, oxygen bleaching, mercerizing and camouflage printing to obtain printed cloth; the printed cloth is steamed to obtain the camouflage cloth. The fabric prepared by the invention has the advantages of flame retardancy, droplet resistance, high strength, easy dyeing, easy camouflage printing, antistatic, low cost, simple process, excellent yarn quality, etc., and is especially suitable for the needs of special operations. To meet the needs of other work clothes and other aspects.

The invention relates to a process for spinning three-in-one stretch yarn of wool, filament and urethane elastic fiber, is characterised in that: at first, a continuous yarn feed device and a spandex feed device is mounted on a spinning machine, spandex is applied with a certain pre-tension, then the spandex is positioned by a guide yarn, and fed in a roving strand which is performed with normal drafting at a front roller tongs mouth, the continuous yarn is also directly fed to the front roller tongs mouth via a yarn guide hole and is held with a certain distance from the strand, the continuous yarn and the strand in which spandex is envelopped are twisted together under the tongs mouth to form a twisting trigonum, and the twisted yarn is winded on a yarn tube to form a three-in-one stretch yarn of wool, continuous yarn and spandex. The invention has a low spinning cost, good quality yarns, simple production and less difficulty.

The invention provides a cheese fiber removal method for producing hemp / cotton and linen / high count cotton yarns, which comprises the following steps of: (1) winding blended spinning single yarns or blended spinning compound yarns on a loose type cheese winder into cheese; (2) controlling the following production conditions on a cheese dyeing machine: a temperature of between 60 and 100 DEG C, aliquor ratio of between 1:10 and 1:30, water exchange times of 1 to 6, a specific discharge of 50 to 70L / kg.min, and fiber removal time of 1 to 6 hours; and (3) removing water soluble PVA fibers fromthe cheese to obtain high count single yarns or high count compound yarns of hemp / cotton or linen / cotton. The single yarns or the compound yarns obtained after fiber removal by the method have the advantages of uniform fiber removal, capability of realizing high-speed unwinding without winding, and capability of being directly used in post processing of weaving and knitting, thereby laying the foundation for revealing the superior performances of the hemp / cotton and the linen / cotton, widening the application scope of hemp / cotton and linen / cotton products, and producing thin hemp / cotton and linen / cotton products with high quality.

The invention discloses a combined structure of a lower support double-runway conical ring and a steel wire ring, wherein an included angle alpha 1 between the inner runway (1a) of a lower support ring (1) and a horizontal coordinate axis is equal to 65-89 degrees; a dent with a depth of h1 is arranged on the outer side of the top of the lower support ring (1); the outer end of the dent is lower than the inner end of the dent so that an inclined surface with an inclined angle alpha 2 is formed; when yarns (3) run normally on the lower support ring (1) along with a lower support steel wire ring (2), the lower support steel wire ring (2) is at a lifting running state by means of an acting force of F; and simultaneously, the ab segment inner leg of the lower support steel wire ring (2) is tightly attached to the inner runway (1a) of the lower support ring (1) together, and the cd segment outer leg of the lower support steel wire ring (2) is tightly attached to the outer runway (1b) of the lower support ring (1) together. Through the structure, the contact area between the ring and the steel wire ring is increased, stable movement of the steel wire ring on the ring is ensured, the service life of the steel wire ring is prolonged, broken ends are reduced, and the spinning quality is improved.