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.