Preparation process of hidden change type compound product

The invention relates to the technical field of preparation of hidden variable compound products, in particular to a preparation process of a hidden variable compound product. The technical problem to be solved by the invention is that a large amount of dye liquor is adsorbed in the textile, and the dye liquor is difficult to remove only by washing with clear water. According to the technical scheme, the preparation process of the hidden variable compound product comprises the following steps: a, inspecting a blank; the imitated cashmere yarn blanks purchased from the outside are inspected, and the unqualified imitated cashmere yarn blanks are removed; b, threading; and sleeving the qualified cashmere-like yarn blank on a dyeing rod according to the specified number of strands. The textile dyeing device has the beneficial effects that the spiral water squeezing mechanism, the reciprocating squeezing mechanism and the flushing mechanism are used in cooperation, synchronous squeezing of the inner side and the o