Tri-channel asynchronous drafting, clustering and spinning device, colored spun yarn three-primary-color mixing effect regulation and control device and mixed color section colored yarn

Abstract

The invention relates to a tri-channel asynchronous drafting, clustering and spinning device, a colored spun yarn three-primary-color mixing effect regulation and control device and mixed color section colored yarn. The tri-channel asynchronous drafting, clustering and spinning device is characterized by comprising a tri-channel asynchronous drafting device, a tri-channel yarn guiding device and a tri-channel clustering device; the tri-channel asynchronous drafting device comprises a combined rear roller, a middle roller and a front roller, the combined rear roller is composed of a first rear roller, a second rear roller and a third rear roller which are driven independently; the tri-channel clustering device comprises a tri-channel clustering groove special-shaped pipe, a tri-channel clustering groove is formed in the surface of the tri-channel clustering groove special-shaped pipe and comprises three clustering grooves, and the tail ends of the three clustering grooves intersect at a yarn intersection point. By effectively holding and clustering of tri-channel yarns, an intersection twisting point of three yarns is fixed in position, and a twisting triangular area is stable in form. Area ratio of primary-color fibers on a yarn outer layer is regulated and controlled to regulate and control color mixing effect of color phase, brightness and saturation degree of mixed-color yarn.

Description

technical field [0001] The invention relates to a three-channel asynchronous drafting cluster spinning device, a method for regulating and controlling the mixed color effect of three primary colors of colored spinning yarn, and a mixed color section colored yarn. Background technique [0002] Color spun yarn is made by blending short fibers of different colors. It can present natural and bright colors, soft and warm tones, and the fabrics woven have hazy three-dimensional effects, so they are very popular in the market. In recent years, the production technology of dope-dyed chemical fibers (such as colored viscose, colored polyester, colored acrylic and other colored fibers) and the loose fiber dyeing technology of various natural fibers have become increasingly mature, laying a good foundation for the development of color spinning industry. Base. After more than ten years of development, my country has taken the lead in forming a textile product industry chain centered on...

AI Technical Summary

Problems solved by technology

Due to the random movement of the twisting points of multi-channel digital color spinning, the shape of the twisting triangle is unstable, so it is impossible to control the distribution of colored fibers on the surface of the color spinning yarn, so it is impossible to achieve precise control of mixed colors and precise control of mixed color differences , resulting in a large difference between the actual color mixing effect and the theoretical color mixing effect

For example, in CN201310369692.2, CN201410176434.7, CN201320516412.1, after drafting, the twisted triangular shape formed by the strands of the two rovings at the nip of the front roller will change due to the change of the draft ratio of the two rovings. Changes, due to the fluctuation of the ply twisting area of ​​the two strands, the yarn structure changes, resulting in a drastic fluctuation in the area ratio of the distribution of the fibers of various colors on the surface of the melange yarn and deviating from the set value, thereby affecting the color mixing effect (including Hue, lightness, saturation) uniformity and stability

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