57results about How to "Reduce yarn breakage" patented technology

The invention discloses a manufacturing process of a polyester cotton yarn-dyed fabric. The manufacturing process comprises the following technological steps: selecting a polyester cotton blended yarn; sequentially performing scouring, blanching, dyeing, soap-boiling, water washing and drying, wherein beam dyeing is adopted, and in the dyeing process, the winding density of a warp of a warping machine is 0.46-0.48 g/cm<3>; before dyeing, adding 0.2-0.4 g/L sodium sulfate into water required by dyeing, performing stirring for 8-10 min; adding sodium carbonate first at the water temperature of 35-40 DEG C; after 12-15 min, adding sodium sulfate for 12-15 min; and maintaining for 42-46 min when the temperature rises to 62 DEG C. According to the manufacturing process, the dyeing effect is improved, more uniform dyeing is achieved, the dyeing freshness is guaranteed, the static property of a spun polyester thread is reduced by an anti-static agent, the static ratio of the polyester cottonyarn-dyed fabric which is woven is favorably reduced on the whole, in addition, triple-jump, yarn breakage and yarn sinking are reduced, and the sizing percentage is increased.

The invention provides a processing agent for polyurethane elastomer fiber, a method of processing of polyurethane elastomer fiber and a polyurethane elastomer fiber, wherein the processing agent for polyurethane elastomer fiber has excellent dispersion stability,allows less scum and soft sides in post processing, and can adapt recent tendency of high level requirements of excellent production of polyurethane elastomer fibers. A composition comprising a specific slipping agent, specific amino modified silicone, and specific higher aliphatic acid salt, can be the processing agent for polyurethane elastomer fibers.

The invention discloses an automatic drafting machine and a drafting method thereof. The machine comprises a heddle, a rail, a crochet hook and a wallboard. The rail is half-enclosed, is composed of an upper concave block and a lower concave block which are oppositely arranged, and one side of the rail is fixed to the wallboard. The heddle is arranged on one side of the rail. A heddle eye is arranged at the position, corresponding to the position of the rail, of the heddle. After the crochet hook hooks a warp yarn, the crochet hook passes through the heddle eye and the rail, and then the drafting is completed. Nozzles are uniformly distributed in the length direction of the rail. The beneficial effects of the machine are that the nozzles are uniformly mounted in the rail through which the crochet hook passes; the nozzles are connected to an external air compression device, and the nozzles inject air in the rail; and when the crochet hook normally hooks the yarn and passes through the rail, the yarn which is attached on the surface of the rail as static electricity is generated due to friction can be blown out of the rail, so that mistakes can be reduced.

The double twisting framework includes the engine frame, the spindle dial running intercalated on the said engine frame, the guiding yarn setting and the winding setting intercalated on the said engine frame, the said guiding yarn is located between the storing yarn canister and the winding yarn setting, the said guiding yarn setting includes the guiding yarn bracket, the threading yarn board is located on the said guiding yarn bracket, the bearing is located on the said threading yarn board. In the practice appliance, the yarn is missive pass the spindle dial from the storing yarn canister, the spindle dial is tail-wagging, the yarn is tail-wagging drive by the spindle dial to realize the twisting and coiling handle of the yarn, when the yarn passes the guiding yarn setting, the yarn is drilled through the bearing, then the yarn is coiled the tension bearing piece, the yarn can drive the inside track of the bearing to eddy, so the tatty degree of the yarn can be depressed, the filoplume produced from the yarn is reduced to ensure the intension of the yarn and reduce the breaking yarn phenomenon.

The invention discloses an improved technology for cone yarn dyeing aftertreatment. The improved technology comprises the following steps: firstly washing a cone yarn for 8 minutes with water at the temperature of 80 DEG C, then discharging the water out a dyeing machine, continuously washing for 8 minutes again with water neutralized by HAC, maintaining water temperature to be 60 DEG C, then discharging the water again, then washing for 8 minutes with the water at the temperature of 80 DEG C, then discharging the water, then adding a saponifying agent into water at the temperature of 98 DEG C, carrying out high temperature soap boiling for 16 minutes twice, discharging liquid once the soap boiling is finished, then sequentially washing for 16 minutes with the water at the temperature of 98 DEG C, washing for 8 minutes with the water at the temperature of 80 DEG C, washing for 8 minutes with water at the temperature of 60 DEG C, and washing for 8 minutes with water at the temperature of 45 DEG C, finally adding a color fixing agent, a softening agent and a smoothing agent into the water at the temperature of 45 DEG C, and carrying out softening treatment for 32 minutes. High temperature soaping is carried out twice for treating the cone yarn, so that salt, alkali and unfixed dyes can be removed.

A frictional false twister is disclosed. The twister has a plurality of rotating friction plates located between the nip of the front rollers and the yarn guide. The friction plates are staggeringly arranged for rubbing a twisted yarn. The spinning direction of the twisted yarn is opposite to the rotating direction of the friction plates. Through the action of the frictional false twister, the twist of the yarn between the false twisting device to the front nip can be increased, shortening the twisting triangle height, and increasing the spinning strength. As the yarn and the outer surface of the friction plate make relative sliding and rubbing, the friction damping force correspondingly reduces the spinning tension in the twisting triangle.

The invention relates to a twisting device of a direct twisting machine. The twisting device comprises a uniform twisting device, a guide wheel, an inner yarn tensioning device, a spindle tank, a spindle and an electric spindle motor, wherein the middle part of the uniform twisting device is of a hollow structure and the upper part of the uniform twisting device is provided with a light-weight shock absorption connection device; the uniform twisting device is fixedly connected with a wall plate above the twisting device of the direct twisting machine through the shock absorption connection device. The stress of the electric spindle motor is alleviated by changing the mounting position of the uniform twisting device; the structure of the guide wheel is changed, so that the clamping phenomenon of the guide wheel is avoided and the service life of the electric spindle motor is prolonged; furthermore, a top cover made of a wear-resisting material of the inner yarn tensioning device is additionally arranged, so that a yarn breaking phenomenon is effectively reduced.

The invention pertains to the use of a multifilament yarn spinning process comprising individually washing each filament of a multifilament yarn and, if neutralized, individually neutralizing each filament of the multifilament yarn, for preventing yarn breakage during the spinning process, the spinning process comprising spinning of a polymer through a spinneret to obtain the multifilament yarn, washing the yarn, and optionally neutralizing and/or drying the yarn and winding the yarn onto a bobbin Preferably the yarn is washed with jet washers.

The invention discloses a yarn winding adjustment device applied to a weft accumulator. The yarn winding adjustment device comprises an installing mechanism and an adjusting mechanism. The installing mechanism comprises an electromagnet sucker, a telescopic rod and a yarn feeding plate. The electromagnet sucker is connected to the left end of the telescopic rod, and the yarn feeding plate is connected to the right end of the telescopic rod. A yarn feeding opening is formed in the yarn feeding plate. A wire distributing wheel and a yarn guide rod are connected to the upper end of a machine body. A yarn guide ceramic ring is arranged on the yarn guide rod. An air cylinder is installed in the machine body. A piston rod is arranged in the air cylinder and connected with the yarn guide rod. A sliding rail is installed in the air cylinder. Sliding blocks are connected to the left side and the right side of the sliding rail respectively. Pressure sensors are installed on the sliding blocks and matched with the yarn guide rod. As the yarn guide ceramic ring and the air cylinder are additionally arranged, with the help of the air cylinder, the yarn guide ceramic ring conveys weft yarns to the yarn storage drum uniformly, mutual knotting is avoided, the probability of yarn breaking is remarkably reduced, friction damage to the yarn storage drum is minimum, the service life of the yarn storage drum can be prolonged, and the actual yarn storage amount of the yarn storage drum can be increased.

The invention relates to an edge weaving method of a weaving machine. The edge weaving method is characterized in that a cloth fell is formed through horizontally transverse swinging and vertically up-and-down motion of a lower hank yarn and vertically up-and-down motion of an upper hank yarn, and accordingly the function of weaving edges of the two hank yarns is achieved. By adopting the edge weaving method, the hank yarns have short motion paths, tension of the hank yarns can be controlled easily, and yarn breaking is reduced. In addition, the hank yarns are simple in motion, good in stability, suitable for a new generation of water spray high-speed weaving machine and capable of meeting market demands.

The invention relates to a production process for producing a run-resistant anti-snagging underwear by adopting a cylinder loom. The production process comprises the following steps of covering yarns;weaving; sewing; dyeing; shaping; clipping and stitching. According to the production process provided by the invention, without increasing the input of novel equipment, the underwear is produced bydirectly adopting a common cylinder loom; and in accordance with the principle of attractiveness in price and quality, the breathable and warm underwear capable of being worn for all seasons, coveringthe body wrinkles and spots, and tightening skin can be manufactured. Secondly, the underwear gives the body light shape and balances the body curve. Again, the underwear has anti-snagging and run-resistant functions, the service life of the underwear is prolonged, and the cost performance of the underwear is further improved.

The invention relates to a reducing comb-type yarn controller which comprises a fixed comb and a plug-type comb, wherein the fixed comb and the plug-type comb are fixed together in parallel. The yarn controller is characterized in that one side of the fixed comb is provided with a plurality of first comb teeth, the side, the same as the fixed comb, of the plug-type comb is provided with a plurality of rubber connectors, the rubber connectors are inserted into second comb teeth, the radiuses of the first comb teeth are equal, and the radiuses of the second comb teeth are unequal. The reducing comb-type yarn controller overcomes defects in the prior art, due to the fact that the fixed comb is matched with the plug-type comb in use, large holding force is exerted on yarns, meanwhile, fluctuation of tension can be buffered through toothed sleeves installed on the comb teeth, broken yarns can be reduced, by inserting and pulling out the second comb teeth of different quantities and different radiuses, the holding force of the yarn controller on the yarns can be adjusted at will, the yarn controller is convenient to use and angles can be flexibly adjusted.

The invention relates to the technical field of plied yarn processes, in particular to a production device and process method of plied yarn for ground retreating. The production process method of the plied yarn for external retreating on the ground comprises the following steps: rotating a raw yarn cake to a creel, firstly passing through a probe yarn guide eye on the creel, then passing through a yarn guide bar on a suspension yarn regulator, continuously passing through a stand column yarn guide eye, then passing through a yarn guide eye beam splitting wheel on the ground, and finally passing through a yarn guide eye of a winder and a V-shaped guide wheel in the horizontal direction to enter the winder; plied yarns are obtained; and the yarn enters the winder at an angle of 42 degrees through the V-shaped guide wheel. According to the production process method for the ground twisted yarn for external retreating, the use efficiency of the twisted yarn product for external retreating is improved, and the quality requirement of customers for the product is guaranteed. The invention also provides a production device.