Preparation method of novel magnetic self-assembled three-dimensional paper chip

The invention relates to a preparation method of a three-dimensional paper chip, in particular to a preparation method of a novel magnetic self-assembled three-dimensional paper chip. The preparationmethod comprises the following steps: with hydrophobic magnetic ink, carrying out screen printing to obtain a channel layer, a pretreatment reagent layer and a detection layer of the paper chip separately; printing a pretreatment agent on the pretreatment reagent layer with a squeegee through patterned reagent printing silk screen; printing a detection agent in a detection area on the detection layer with a squeegee through the patterned reagent printing silk screen; and stacking the channel layer, the pretreatment reagent layer and the detection layer in sequence on a pad made of a magnetic material, so as to obtain the three-dimensional paper chip. The preparation method of the novel magnetic self-assembled three-dimensional paper chip provided by the invention adopts a screen printing technology, an additional