Yarn dyeing device

Abstract

The invention discloses a yarn dyeing device having the advantages that the bath ratio is low, the dyeing time is short, and disordered yarns, broken yarns, rod imprints and an uneven strip sense canbe avoided. The device comprises a rack and a circulating pump, a heat exchanger, dyeing cylinders and a buffering tank are arranged on the rack, and an inlet of the circulating pump is connected withan output port of the heat exchanger; an outlet of the circulating pump is connected with the dyeing cylinders and the buffering tank through an output pipeline, and the output pipeline comprises a main output pipe and output flow dividing pipes connecting the dyeing cylinders, the buffering tank and the main output pipe; a liquid inlet pipe is arranged on the main output pipe, and the top of themain output pipe is higher than the buffering tank and is provided with an overflow pipe; each dyeing cylinder comprises a dyeing cylinder body and a turnover cover, each dyeing cylinder body is internally provided with a yarn hanging pipe, a jet port is formed in each yarn hanging pipe, and blocking sealing mechanisms cooperating with the yarn hanging pipes are arranged on the turnover covers; abackflow passage is formed among the buffering tank, the dyeing cylinders and the thermal exchanger; a heating device is arranged in the heat exchanger. The above-mentioned yarn dyeing device can besuitable for various yarns.

Description

technical field [0001] The invention relates to a dyeing device used in the dyeing and finishing industry, in particular to a yarn dyeing device. Background technique [0002] At present, when dyeing yarn, there are no more than three methods, namely cabinet dyeing, bobbin dyeing and jet cylinder dyeing. These three methods have disadvantages: the dyeing bath for tank dyeing is relatively large, usually around 1:20, and usually only some yarns with poor elasticity such as puffed yarns can be dyed, and the dyed yarns are easily messy and easy to break , easy to fluff; because it is necessary to turn the bobbin yarn into a hank yarn for dyeing, the hank yarn must be turned into a bobbin yarn after dyeing, which increases the intermediate link, thereby increasing the production cost and reducing the production efficiency. Moreover, the dyed There are rod marks in the yarn. In the process of converting the bobbin yarn into skein yarn and then from skein yarn to bobbin yarn, ran...

AI Technical Summary

Problems solved by technology

These three methods have disadvantages: the dyeing bath for tank dyeing is relatively large, usually around 1:20, and usually only some yarns with poor elasticity such as puffed yarns can be dyed, and the dyed yarns are easily messy and easy to break , easy to fluff; because it is necessary to turn the bobbin yarn into a hank yarn for dyeing, the hank yarn must be turned into a bobbin yarn after dyeing, which increases the intermediate link, thereby increasing the production cost and reducing the production efficiency. Moreover, the dyed There are rod marks in the yarn. In the process of converting the bobbin yarn into skein yarn and then from skein yarn to bobbin yarn, random yarn and thread breakage will inevitably occur, which will greatly increase the number of yarn joints. During the weaving process of sequence, it is easy to form holes

The yarn dyeing of the bobbin cylinder also has great limitations. It can only dye cotton yarn and solid acrylic yarn; moreover, the yarn dyed by bobbin cylinder dyeing has poor bulk and softness, which is sensitive to Colors such as army green, brown, etc. will also have a color difference between the inner layer and the outer layer

The disadvantages of yarn dyeing by jet cylinder are between the cabinet cylinder and the bobbin cylinder, and the dyed yarn also has disadvantages such as bad hand feeling, insufficient texture, easy to mess up and break, etc.

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