Device and method for detecting water color fastness of filter tank for textiles

The invention discloses a filter water color fastness detection device for textiles. The device comprises a detection cylinder; the detection slide way is arranged above the detection cylinder and comprises a front slide way and a rear slide way, and the front slide way and the rear slide way are arranged in parallel in the length direction of the detection cylinder; the lifting assembly comprises a first motor, a second motor, an upper lifting shaft, a lower fixing shaft, a lifting connecting piece and a transverse moving lead screw. The sample fixing assembly comprises a detection center body, and the detection center body is of a hollow cuboid structure. Compared with the prior art, the detection shaft reciprocating in the length direction of the cylinder body is arranged above the rectangular test cylinder, the detection body similar to a human body in structure is arranged on the detection shaft, and the detection shaft drives the detection body to reciprocate along the test cylinder, so that correspondi