Reactive dye duplex printing method

The invention discloses a reactive dye duplex printing method and belongs to the technical field of textile inkjet printing .The reactive dye duplex printing method comprises the steps that fabric is padded with a pretreatment working solution containing an opacifying agent and a penetrating preventing agent, the pretreatment working solution is uniformly applied to the front and back sides of the fabric, the fabric is dried, the front side of the fabric is subjected to inkjet printing with reactive dye ink and dried, then the back side of the fabric is subjected to inkjet printing with the reactive dye ink and dried, steaming is carried out for fixation, and washing, drying and tentering are carried out .The reactive dye duplex printing method is suitable for duplex printing of pure-spun or blended fabric made of cellulose fibers .The double-side floral designs of the fabric obtained after inkjet printing do not influence each other and are high in fineness, bright in color, high in expressive force and rich in layering sense .