Knitted jean production process and equipment

Abstract

The invention relates to a knitted jean production process. The process comprises the following steps of: 1) grouping raw cotton yarns (single yarns) into 500 to 16,000 pieces to form a flaky yarn; 2) repeatedly dyeing and press-drying the flaky yarn obtained in the step 1) for multiple times; 3) winding the flaky yarn into an axial yarn by using a multi-head coiling machine; and 4) winding the axial yarn into a finished yarn, wherein the finished yarn is knitted cheese or a colored weft yarn. In the design, the multi-head winding machine is used for winding the yarn, leasing and mounting processes are not needed, the production efficiency is extremely high; the yarns are arranged to be flaky during production, and a yarn fabric has a uniform color and higher product grade; meanwhile, the process has low requirement on a dye which can be recycled and the environment is not polluted by the processing method. The flaky dyed multi-head coiling machine is used in the production of a knitted fabric or tatted jean, so high production efficiency is guaranteed and the energy consumption is saved.

Description

Technical field [0001] The invention relates to a knitted denim production process and a sheet-like dyeing multi-head winder device used for winding yarn during production. Background technique [0002] At present, there are two methods for dyeing knitting yarn in the industry: The first method is cheese dyeing. The whole spindle is piled in a large dyeing vat. The dyeing is carried out through high temperature and high pressure. After dyeing, the remaining dye liquor cannot be recycled. After the whole package is dyed Drying consumes a lot of energy, and all vat dyes are not suitable for package dyeing. The most representative denim indigo is vat dye. The second method of dyeing knitting yarn is rope dyeing. The disadvantage of rope dyeing is that there are many edges. Twenty-four ribbons are forty-eight edges. The yarns on each edge are loose and not dry, which affects the color restoration, resulting in large differences in shades between the yarns. The warping process is ev...

AI Technical Summary

Problems solved by technology

The disadvantage of rope dyeing is that there are many edges. Twenty-four bundles of yarn tapes are forty-eight edges. The yarns on each edge are looser and will not dry out, which will affect the color restoration, resulting in a large difference in depth between the yarns, and the separation process is even more rope-like. The restriction point of dyeing is that a bundle of yarn with about 400 yarns is hovered in the drum under zero tension, and after being squeezed by the weight of the yarn itself, it is divided into warp, and the yarns are twisted together, which is easy to break. The efficiency of the upper cylinder is low, and the fabric surface is eventually perforated. It is more difficult to produce more than 32 yarns

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