Rewritable materials play a significant role in reducing paper production and consumption, information storage and anticounterfeiting, etc. Rewritable textiles have attained much attention due to the flexibility, easy availability and functionality. How to develop a photochromic and mechanochromic dual-stimuli responsive fabric as a flexible rewritable media or display substrate is still rarely reported. In the present work, we present the rational design and synthesis of stimuli-responsive acrylate latex via emulsion polymerization with a spiropyran cross-linker. Spiropyran was chemically bonded into the polymer network of latex particles. Then cotton fabrics were spraying coated by the latex with different composition and add-on percentage. Writing without ink was carried out to investigate the photochromic and mechanochromic properties of the functionalized cotton fabrics. The functionalized cotton fabric still could change color under writing without ink after soaping for 50 times and light irradiation for 20 cycles. Our developed flexible cotton fabric can be used as a long-term, efficient, and stable rewritable media or flexible display substrate, even in the harsh environment such as washing.

可擦写材料在减少纸张生产和消耗、信息存储和防伪等方面发挥着重要作用。可擦写纺织品由于其灵活性、易获得性和功能性而备受关注。如何开发光致变色和机械致色双刺激响应织物作为柔性可重写介质或显示基板仍然很少见报道。在目前的工作中，我们提出了通过乳液聚合与螺吡喃交联剂合理设计和合成刺激响应性丙烯酸酯胶乳。螺吡喃化学键合到乳胶颗粒的聚合物网络中。然后用不同成分和添加百分比的乳液喷涂棉织物。进行无墨水书写以研究功能化棉织物的光致变色和力致变色性能。经皂洗50次、光照射20次后，功能化棉织物在无墨书写下仍能变色。我们开发的柔性棉织物可以用作长期、高效、稳定的可重写介质或柔性显示基板，即使在洗涤等恶劣环境中也是如此。