Production method of bastose wet spinning yarn

Abstract

The invention relates to a production method of a bastose wet spinning yarn. The production method of the bastose wet spinning yarn comprises the steps of heckling, degumming, scouring and bleaching, dyeing, drying and softening, then color mixture is carried out on two kinds or more than two kinds of ramie strips of different colors according to different color ratios, the ramie strips are mixed and drafted after 4-6 drawing working procedures, roving and wet spinning thinning working procedures are carried out on the ramie strips, and finally the ramie strips are dried, spooled and packaged to form a finished product. The production method of the bastose wet spinning yarn is characterized in that the heckling working procedure comprises a process of strip manufacturing and a process of ball formation, the process of strip manufacturing means that short fibers are removed and then long bastose fibers are manufactured into the ramie strips; and the process of ball formation means that the continuous ramie strips are wound layer by layer from inside to outside to form a hollow cylindrical bastose ball. The produced bastose wet spinning yarn is uniform in dyeing, bright in color, rich in level, and good in color fastness.

Description

technical field [0001] The invention relates to the technical field of long hemp spinning, in particular to a production method of hemp fiber wet-spun colored yarn used for knitted or woven garments and home textile fabrics. Background technique [0002] At present, domestic hemp spinning enterprises mainly produce monochromatic (white and primary color) hemp yarn varieties, and dyeing usually goes through the following methods: one is to dye white hemp yarns into different colors one by one, and then dye different colors according to needs. The colored linen yarn is yarn-dyed; the second is to dye the cloth woven with linen yarn according to needs. [0003] The above two methods have the following disadvantages: 1. The dyeing is not transparent, because the package is tightly wrapped, and the pectin remaining on the yarn prevents the dye from fully penetrating into the center of the package, resulting in a "white heart" phenomenon; 2. Uneven dyeing , gray cloth dyeing due ...

AI Technical Summary

Problems solved by technology

[0003] The above two methods have the following disadvantages: 1. The dyeing is not transparent, because the package is tightly wrapped, and the pectin remaining on the yarn prevents the dye from fully penetrating into the center of the package, resulting in a "white heart" phenomenon; 2. Uneven dyeing , gray cloth dyeing due to process and environmental errors caused by cylinder difference, head-to-tail color difference and side-to-side color difference; 3. High dyeing cost and great environmental pollution; 4. Single color, lack of three-dimensional color effect, and the appearance of the finished product is dull

The above-mentioned technical scheme adopts the flax short-spinning route, and its disadvantages and deficiencies are: (1) After the single finishing and refinishing processes, the combing noil is very high, the production rate is low, and the cost is high; (3) Poor yarn quality and poor weaving performance

The above technical solution only lists the names of the various processes, and the specific process is not disclosed, so those skilled in the art cannot implement

And the above-mentioned technological process is not different from conventional flax spinning except for the dyeing process. Its disadvantages and deficiencies are: (1) It cannot meet the package requirements for dyed hemp sliver, and the batch production efficiency is low; (2) Dyeing and drying of hemp sliver The post-sticking phenomenon is serious, and the subsequent process is difficult to process; (3) Poor spinnability, poor yarn quality, and poor weaving performance

The disadvantages and deficiencies of the above-mentioned technical solutions are: (1) Mixing in any proportion cannot be realized, and the color is single; (2) The finished product is the effect of two kinds of dyed yarns intertwisting, which cannot produce three-dimensional color effects; (3) The process is long and the efficiency is low , High cost; (4) All hemp fibers are dyed, which is more polluting than colored spinning and not environmentally friendly

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