Review on development and application of 4D-printing technology in smart textiles

4D printed products can change shape under external stimulation, and the deformation design of material structure is directly built into material, which simplifies manufacturing process from concept to physical object allows be automatically assembled conformed, realizing integration product design, manufacturing, assembly. In recent years, printing technology has also received widespread attention in smart textile industry. This paper aims promote diversified efficient development industry expand scope application additive technology. First, evolution its intrinsic relationship with 3D are examined. Then, types technologies their characteristics presented, influence relevant parameters each type on molding quality, mechanism, driving performance models discussed. Materials for textiles further described, including memory materials, hydrogels, elastic liquid crystals. To adapt specific properties applications, developed structural level create adjustable shapes, properties, or functions. applications different fields summarized. Finally, some problems currently faced by discussed, prospects projected.