Preparation method of yarn with long and short fiber compound structure

Abstract

The invention discloses a preparation method of a yarn with a long and short fiber compound structure, belonging to the technical field of textile processing. The preparation method comprises the following steps of: feeding short fiber rove fiber strands unwound from a rove tube into a drafting zone through a yarn-guiding horn for drafting on a drafting mechanism of a ring spinning frame; feeding at least three filaments into a front jaw from the rear end of a front roller at an interval of 0.1-3mm; jointing the filaments and the rove fiber strands at the jaw part; outputting and feeding drafted rove fiber strands and the filaments from the front jaw into a twisting triangular zone; twisting the rove fiber strands and the filaments into the yarn and winding the yarn on a spun yarn bobbin; and forming compound yarns with different structures according to the space among the filaments and the different relative positions of the rove fiber strands. The invention can prepare yarns with a unique internal space structure and an external surface structure on the ring spinning frame, enhances the strength, the wear resistance and the bend resistance of the yarns, has favorable conformality of textures and can achieve the effect of wearing after washing. The invention realizes the preparation of the yarns with special structures and special functions on the traditional spinning equipment.

Description

technical field [0001] The invention relates to a spinning method for producing composite yarns with special internal space structure and surface structure on a ring spinning frame, which belongs to the technical field of textile processing. technical background [0002] With the continuous improvement of modern living standards and people's cultural accomplishment, people put forward higher requirements for the comfort, functionality, high sensitivity and health care of clothing. Both natural fibers and chemical fibers have their own advantages and disadvantages. A single type of fiber and a single structure of yarn has been difficult to meet people's requirements for clothing. The goal of realizing "diversification" of fiber raw materials and "diversification" of yarn structure in textiles is an ideal choice to meet people's requirements, and composite spinning technology has become an effective way to achieve this goal. Due to the essential difference between the ring sp...

AI Technical Summary

Problems solved by technology

[0004] Siro spinning can improve yarn strength and unevenness to a certain extent, but if a single yarn strand breaks during the yarn forming process, the entire spinning will fail. When it is large, it is easy to form a phenomenon that one single yarn sliver completely covers another single yarn sliver

The residual torque of Siro composite yarn is relatively large, but it is prone to problems such as weft skew and poor anti-friction performance in fabric processing such as knitting production

The Sirofill composite yarn also has a large residual torque, and the surface-coated short fibers are easy to slip due to the separation of the filaments and short fibers

During the weaving process, friction between healds, reeds and adjacent yarns can easily lead to fluffing and pilling of surface-coated short fibers, which directly affects processing efficiency

Although the Solo spinning technology can form a yarn structure similar to strands, this technology requires high precision in equipment modification. Fiber breakage is prone to occur during the fiber sliver splitting process, which affects the quality of the yarn, and production is relatively difficult.

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