Supercritical carbon dioxide hairball dyeing kettle and waterless dyeing method thereof

Abstract

The invention relates to a supercritical carbon dioxide hairball dyeing kettle which comprises a cylinder body and a hairball dyeing barrel body fixed in the cylinder body, wherein a movable sealing cover is fixed at the upper end of the cylinder body, and the lower end of the cylinder body is provided with a carbon dioxide liquid outlet; a carbon dioxide liquid inlet is arranged at the upper part of the cylinder body; a heating clamping sleeve is fixed outside the cylinder body; a heating medium outlet is arranged at the upper end of one side of the heating clamping sleeve, and a heating medium inlet is arranged at the lower end of the other side of the heating clamping sleeve; the supercritical carbon dioxide hairball dyeing kettle is characterized in that a hole III is formed in the wall of the hairball dyeing barrel body; a central pipe is fixed to the centre of the hairball dyeing barrel body, and at least one upper limiting cover is fixed to the central pipe; the central pipe has a multi-pore shaft structure; a hole I is formed in a supporting plate at the bottom of the barrel body; a central hole Ia is corresponding to an internal chamber of the central pipe; and a hole II is formed in the upper limiting cover. According to the supercritical carbon dioxide hairball dyeing kettle increased, the direct contacting surface area of the a hairball and the dyeing liquid can be increased, and improves the influence due to the gravity in hairball dyeing can be improved, and the dyeing speed and the dye pickup can be improved, as well as the dyeing uniformity is improved.

Description

technical field [0001] The invention belongs to the field of textile printing and dyeing, and relates to a supercritical carbon dioxide wool ball dyeing kettle and an anhydrous dyeing method thereof, and more specifically relates to a dyeing kettle suitable for wool ball dyeing in a supercritical carbon dioxide dyeing device. Background technique [0002] The traditional wool top dyeing is to dye the wool top raw material into top balls. When dyeing, the top balls are first strung on the mandrel, the mandrel is put into the dyeing cylinder, and then the dyeing cylinder containing the wool top balls is put into the dyeing kettle for dyeing. After the dyeing is finished, the residual liquid needs to be drained, and the floating color should be removed by washing with water or soaping multiple times. The tops are then dried. Because wool top balls go through multiple processes such as dyeing and cleaning, the fibers in the dried wool top balls are relatively chaotic, and the ...

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Problems solved by technology

[0003] At present, in the dyeing kettle of the supercritical carbon dioxide dyeing device, the hair balls are entangled on the dyeing rack. When dyeing, the dyeing rack in the dyeing device has less quality for holding the hair balls, and the contact area between the dye liquor and the fibers is insufficient; loading and unloading before and after dyeing Difficult; and it is impossible to realize the support of the dyeing frame to the hair ball during dyeing and ensure the level dyeing property

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