申请人:Natural Fiber Welding, Inc.
公开号:US10011931B2
公开(公告)日:2018-07-03
A dyeing and welding process may be configured to convert a substrate into a welded substrate having at least some color imparted thereto via a dye and/or coloring agent by applying a process solvent having a dye and/or coloring agent therein to the substrate, wherein the process solvent interrupts one or more intermolecular force between one or more component in the substrate. The substrate may be configured as a natural fiber, such as cellulose, hemicelluloses, and silk. The process solvent may include a binder, such as dissolved biopolymer (e.g., cellulose). After application of a process solvent comprised of a dye and/or coloring agent, the substrate may be exposed to a second application of a process solvent comprised of a binder, which second application may occur before or after a process temperature/pressure zone, process solvent recovery zone, and/or drying zone.
染色和焊接工艺可配置为通过向基材施加含有染料和/或着色剂的工艺溶剂,将基材转化为焊接基材,该基材通过染料和/或着色剂至少被赋予一些颜色,其中工艺溶剂中断基材中一个或多个组分之间的一个或多个分子间作用力。基材可配置为天然纤维,如纤维素、半纤维素和丝。加工溶剂可包括粘合剂,如溶解的生物聚合物(如纤维素)。在施用由染料和/或着色剂组成的工艺溶剂后,基材可接触到由粘合剂组成的工艺溶剂的第二次施用,第二次施用可发生在工艺温度/压力区、工艺溶剂回收区和/或干燥区之前或之后。