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CN-121992547-A - Production method of blended bunchy yarn

CN121992547ACN 121992547 ACN121992547 ACN 121992547ACN-121992547-A

Abstract

The invention discloses a production method of a blended bunchy yarn, which is characterized by comprising the steps of raw material preparation, simple blowing-carding, uniform drawing and optional bunchy roving, ring roving, bunchy spinning and ring spinning, wherein the raw materials are polyester and viscose, cotton bales are adopted for mixing, the simple blowing-carding sequentially carries out disc cotton grabbing, cotton mixing, porcupine cotton opening, automatic cotton feeding and cotton carding to obtain a polyester-viscose mixed strip, the uniform drawing adopts two processes, the quality of the sliver is optimized, and the subsequent combination is carried out through different working procedures to produce the blended bunchy yarn with rich fancy effect.

Inventors

  • LI GUANGAI
  • DING LIPING

Assignees

  • 杭州勤想实业有限公司

Dates

Publication Date
20260508
Application Date
20260131

Claims (10)

  1. 1. The production method of the blended bunchy yarn is characterized by comprising the following steps of: the preparation of raw materials comprises selecting polyester fiber and viscose fiber, adopting a single mark, and controlling the mixing proportion in a cotton bale mixing mode; The simple blowing-carding-drawing machine sequentially comprises the procedures of disc cotton grabbing, cotton mixing and opening, porcupine cotton opening, automatic cotton feeding and cotton carding to obtain polyester-viscose mixed strips; The uniform drawing process comprises the steps of adopting two drawing processes, wherein the first process is to prepare eight polyester-viscose mixed semi-finished products of the polyester-viscose mixed semi-finished products, the second process is to prepare eight polyester-viscose mixed semi-finished products of the polyester-viscose mixed semi-finished products, and the total draft multiple of the two drawing processes is larger than the total number of fed strips; feeding the polyester-viscose mixed cooked strips into a roving frame with a bamboo joint device, and setting pitch length, pitch and pitch thickness parameters to prepare polyester-viscose bamboo joint roving; And a ring spinning step, namely feeding the polyester viscose slub roving into a common ring spinning frame, and setting draft multiple, twist parameters and environmental temperature and humidity to obtain the blended slub yarn.
  2. 2. The method for producing the blended bunchy yarn of claim 1, wherein in the preparation of the raw materials, the strength of the polyester fiber is 4.5cNdtex, the elastic recovery rate is 85%, the hygroscopicity of the viscose fiber is 13%, and the mixing ratio of the polyester fiber to the viscose is 60:40.
  3. 3. The method for producing the blended bunchy yarn according to claim 1, wherein in the disc cotton grabbing process, the rotation speed of a cotton grabbing trolley is 1.2rmin, the rotation speed of a cotton grabbing beater is 900rmin, the distance between the extending ribs of the blade is 3mm, and the intermittent descending distance of the beater is 3mm.
  4. 4. The method for producing the blended bunchy yarn according to claim 1, wherein in the cotton blending process, the running speed of a corner nail curtain is 8mm in, the rotation speed of a cotton homogenizing roller is 300 mm in, and the spacing between dust bars is 8mm.
  5. 5. The method for producing the blended bunchy yarn of claim 1, wherein in the porcupine cotton opening process, the rotation speed of a porcupine beater is 800rmin, and the distance between dust bars is 10mm.
  6. 6. The method for producing the blended bunchy yarn according to claim 1, wherein in the automatic cotton supplying process, the pressure of the intermittent air compressing mechanism is 0.3MPa, the intermittent time is 5s, the forward cotton feeding speed of a cotton box is 6mmin, and the cotton storage amount of a lower cotton box is 20kg.
  7. 7. The method for producing the blended bunchy yarn according to claim 1, wherein in the cotton carding process, the rotating speed of the licker-in is 800rmin, the gauge of the licker-in and a cotton feeding plate is 0.3mm, the gauge of the licker-in and the cylinder is 0.18mm, and the gauge of the cylinder and a cover plate is 0.2mm.
  8. 8. The method for producing the blended bunchy yarn according to claim 1, wherein in the uniform drawing process, the total drawing multiple of the first drawing is 8.5 times, the roller speed is 300mmin, the diameter of a flare opening is 4mm, and the total drawing multiple of the second drawing is 8 times.
  9. 9. The method for producing the blended bunchy yarn according to claim 1, wherein in the bunchy roving process, the pitch length is 50-60mm, the pitch is 300-350mm, the pitch thickness is 200-220%, the draft multiple of a roving frame is 4.8-5 times, and the twist is 3.5-3.8 twist m.
  10. 10. The method for producing the blended bunchy yarn according to claim 1, wherein in the ring spinning process, the spinning frame spindle speed is 12000r/min, the draft multiple is 30 times, the twist is 80 turns m, the ambient temperature is 25 ℃, and the humidity is 65%.

Description

Production method of blended bunchy yarn Technical Field The invention relates to the technical field of textile, in particular to a production method of blended bunchy yarns. Background The slub yarn is taken as a fancy yarn with irregular slub type rough and fine details, and the unique structure of the slub yarn endows the fabric with unique appearance and performance, so that the slub yarn is deeply favored by the market. In the current textile industry, consumers demand increasingly diversified fabrics and clothes, which not only pursues beauty, but also pays attention to various performances such as comfort, functionality and the like. The blended bunchy yarn can integrate the characteristics of different fibers, and meets the diversified requirements. However, the existing production method of the blended bunchy yarn still has some problems in the actual operation process. For example, some methods have complicated process flows, which results in high production cost, some methods have poor control on fiber mixing uniformity, which affects yarn quality stability, and other methods have too high dependence on equipment during production, and small differences or faults of the equipment may have a large influence on yarn quality. Therefore, the development of the blended bunchy yarn production method which is concise in flow, controllable in cost and capable of guaranteeing yarn quality has important practical significance. Disclosure of Invention The invention aims to provide a production method of a blended slub yarn, which improves the uniformity of fiber mixing, reduces the production cost by optimizing the production flow, and simultaneously ensures that the yarn has good quality and unique slub style so as to meet the market demand for high-quality and diversified blended slub yarns. In order to solve the problems, the technical scheme of the invention is that the production method of the blended bunchy yarn is characterized by comprising the following steps: the preparation of raw materials comprises selecting polyester fiber and viscose fiber, adopting a single mark, and controlling the mixing proportion in a cotton bale mixing mode; The simple blowing-carding-drawing machine sequentially comprises the procedures of disc cotton grabbing, cotton mixing and opening, porcupine cotton opening, automatic cotton feeding and cotton carding to obtain polyester-viscose mixed strips; The uniform drawing process comprises the steps of adopting two drawing processes, wherein the first process is to prepare eight polyester-viscose mixed semi-finished products of the polyester-viscose mixed semi-finished products, the second process is to prepare eight polyester-viscose mixed semi-finished products of the polyester-viscose mixed semi-finished products, and the total draft multiple of the two drawing processes is larger than the total number of fed strips; feeding the polyester-viscose mixed cooked strips into a roving frame with a bamboo joint device, and setting pitch length, pitch and pitch thickness parameters to prepare polyester-viscose bamboo joint roving; And a ring spinning step, namely feeding the polyester viscose slub roving into a common ring spinning frame, and setting draft multiple, twist parameters and environmental temperature and humidity to obtain the blended slub yarn. Further, in the preparation of the raw materials, the strength of the polyester fiber is 4.5cNdtex, the elastic recovery rate is 85%, the hygroscopicity of the viscose fiber is 13%, and the mixing ratio of the polyester fiber to the viscose is 60:40. Further, in the disc cotton grabbing procedure, the rotation speed of the cotton grabbing trolley is 1.2rmin, the rotation speed of a cotton grabbing beater is 900rmin, the distance between the blade extending out of the rib is 3mm, and the intermittent descending distance of the beater is 3mm. Further, in the cotton mixing procedure, the running speed of the angle nail curtain is 8mmin, the rotation speed of the cotton homogenizing roller is 300rmin, and the distance between dust bars is 8mm. Further, in the porcupine cotton opening process, the rotating speed of a porcupine beater is 800rmin, and the distance between dust bars is 10mm. Further, in the automatic cotton feeding process, the pressure of the intermittent air compressing mechanism is 0.3MPa, the intermittent time is 5s, the forward cotton feeding speed of the cotton box is 6mmin, and the cotton storage amount of the lower cotton box is 20kg. Further, in the cotton carding process, the rotating speed of the licker-in is 800rmin, the gauge of the licker-in and the cotton feeding plate is 0.3mm, the gauge of the licker-in and the cylinder is 0.18mm, and the gauge of the cylinder and the cover plate is 0.2mm. In the uniform drawing process, the total drawing multiple of the first drawing is 8.5 times, the roller speed is 300mm in, the diameter of a bell mouth is 4mm, and the total drawing multiple of the second drawin