| 摘要 |
A dyeing bobbin is provided to prevent the deformation of the bobbin due to high pressure even when yarns are dyed under high pressure, by forming the bobbin of which size is shrinkable or restorable. A plurality of side boards(13) are formed by bending a rolled board having predetermined width and thickness, wherein each of the side boards has bent portions, an upper support portion, and a lower support portion. A plurality of grooves are formed in the side boards. A plurality of joining rings(17) are inserted into the grooves of the side boards to constitute a cylinder type dyeing bobbin(10). An upper support member(14) and a lower support member(15) are respectively joined to the upper support portions and the lower support portions of the side boards. The upper support member and the lower support member have an upper movement part and a lower movement part, respectively. The side boards moves within the upper movement part and the lower movement part to shrink or restore the dyeing bobbin. |
