Continuous indigo dyeing device and dyeing method for cotton sliver

Abstract

The invention discloses a continuous indigo dyeing device for cotton sliver. The device comprises a pre-treatment device, a dyeing device, a raw cotton feeding device and a post-treatment device, all of which are orderly arranged. The pre-treatment device comprises the raw cotton feeding device, a loosening roll, a carding roll, a collection and slivering device, a cotton sliver wetting device, a scouring groove, a scouring rotary drum and a pair of liquid pressing rolls A. The continuous indigo dyeing device for cotton sliver has the following beneficial effects: sliver equipment, sliver scouring, sliver dyeing and water scrubbing and drying processes are effectively integrated so that phenomena in the prior art are avoided during a sliver processing and production process such as non-uniformity and broken ends due to accidental stretching; and high efficiency short-flow production of denim indigo is achieved. The invention further discloses a method for dyeing with the dyeing device.

Description

technical field [0001] The invention belongs to the technical field of textiles, and relates to a continuous dyeing device for cotton sliver indigo, and also relates to a dyeing method using the dyeing device. Background technique [0002] Traditional indigo denim fabric preparation methods include warp dyeing and interweaving, fabric dyeing, and loose fiber dyeing. The warp dyeing method includes warp beam multi-dyeing tank dyeing paste combined process, warp beam single dyeing tank circular dyeing process (or coil dyeing process). Dyeing and sizing process), ball warping and rope dyeing process. There are advantages and disadvantages in each of the above methods. The warp yarn dyeing method adopts the method of multiple padding and padding dyeing in parallel arrangement of multiple warp yarns. high. Fabric dyeing can adopt a variety of dyeing equipment, which has high efficiency and low cost, but because this method is the simultaneous dyeing of warp and weft yarns, the ...

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Problems solved by technology

There are advantages and disadvantages in each of the above methods. The warp yarn dyeing method adopts the method of multiple padding and padding dyeing in parallel arrangement of multiple warp yarns. high

A variety of dyeing equipment can be used for fabric dyeing, which has high efficiency and low cost. However, since this method is for simultaneous dyeing of warp and weft yarns, it cannot form the yarn-dyed effect of denim fabrics.

Loose fiber dyeing can realize the maximum flexible processing method, but due to the limitation of the principle of indigo dyeing, the reduction-oxidation action needs to be carried out many times during the dyeing process, resulting in fiber accumulation and agglomeration during the dyeing process of loose fiber, the dyeing process is cumbersome and the dyeing process is difficult. Uneven etc.

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