▎ 摘　　要

NOVELTY - Preparing graphene nylon and polyester eddy current blended yarn involves mixing graphene nylon fiber and polyester fiber through fiber pretreatment, spinning into strips before the mixed fibers. The mixed fiber strips are made into yarn to obtain the required graphite. The 60% polyester and 40% graphene nylon obtained by the opening treatment are mixed with pre-mixed cotton, and then used for 24 hours. The polyester fiber and the graphene-polyamide fiber are alternately fed into the upper cotton box, and then the horizontal layered discharge of the two fibers is realized by the conveying of the swing bucket, then the two fibers are uniformly mixed by longitudinally grasping the mixed fiber layer. The continuous mixed fiber bundle is obtained, and the mixed fiber bundle is directly transported to the carding machine to obtain a mixed fiber sliver. USE - Method for preparing graphene nylon and polyester eddy current blended yarn used in spinning device (MVS) for spinning pure cotton. ADVANTAGE - The method realizes effective control of two kinds of fibers with different length in the drafting, improves the drafting effect, by controlling the different holding state of the back end of the two fibers with different lengths on the twisting resistance ring. DETAILED DESCRIPTION - Preparing graphene nylon and polyester eddy current blended yarn involves mixing graphene nylon fiber and polyester fiber through fiber pretreatment, spunning into strips before the mixed fibers. The mixed fiber strips are made into yarn to obtain the required graphite. The 60% polyester and 40% graphene nylon obtained by the opening treatment are mixed with pre-mixed cotton, and then used for 24 hours. The polyester fiber and the graphene-polyamide fiber are alternately fed into the upper cotton box, and then the horizontal layered discharge of the two fibers is realized by the conveying of the swing bucket, then the two fibers are uniformly mixed by longitudinally grasping the mixed fiber layer. The continuous mixed fiber bundle is obtained, and the mixed fiber bundle is directly transported to the carding machine to obtain a mixed fiber sliver. The large-gauge process ideas are used to reduce fiber damage, mixed fiber strips, the required graphene nylon and polyester eddy current blended yarn is obtained through three draw frames in turn and directly through the spun yarn. The rear top roller uses polyurethane top roller, and the front top roller uses a 86° 16.5MM top roller to reduce winding. The four-roller three-zone drafting system is used. The first control roller with the same rotation speed as the rear roller pair and a second control roller with the same rotation speed as the middle and rear roller pairs are set up in the middle drafting zone. The third control roll that keeps the same rotation speed as the middle and rear roller pairs, and the fourth control roll that keeps the same rotation speed as the middle and front roller pairs is set inside, so that the control roll at the rear can stably control the shorter polyester fibers during the drafting process, the control roller at the front has a straightening and finishing effect on the longer graphene nylon fibers, improving the drafting effect. The mixed whiskers obtained by drafting then entering the yarn forming cup, and the mixed whiskers first entering twist-resisting ring located at the top of the yarn forming cup, under the action of the twist-resisting ring, the polyester fiber with short length is separated from the grip of the front roller pair, so that more than 90% of the length of the front portion of the fiber directly enters the spinning channel. The graphene nylon fiber with a longer length is still held by the front roller, so that the length within 10% of the front portion of the fiber also enters the spinning channel to become the yarn core, when the graphene nylon fiber ends After being separated from the front roller pair, the yarn is adsorbed to the entrance of the yarn forming cup under the centrifugal action of the inner eddy current and is radially provided by the rotating airflow. The tail end of the yarn-forming cup falls on the front-end cone surface of the yarn-forming cup. The tail end of the shorter section of the polyester fiber interlaced with it is simultaneously driven to fall correspondingly. The rotation of the eddy current is controlled, and the longer section of the lodging graphene nylon fiber is wrapped around the outside of the yarn core, forming an external wrapping yarn, and the shorter section of the lodging polyester fiber protrudes out of the yarn body to form a certain short hairiness to obtain product.