Here, we introduce a novel concept for the fabrication of colored materials with significantly reduced dye leaching through covalent immobilization of the desired dye using plasma-generated surface radicals. This plasma dye coating (PDC) procedure immobilizes a pre-adsorbed layer of a dye functionalized with a radical sensitive group on the surface through radical addition caused by a short plasma treatment. The non-specific nature of the plasma-generated surface radicals allows for a wide variety of dyes including azobenzenes and sulfonphthaleins, functionalized with radical sensitive groups to avoid significant dye degradation, to be combined with various materials including PP, PE, PA6, cellulose, and PTFE. The wide applicability, low consumption of dye, relatively short procedure time, and the possibility of continuous PDC using an atmospheric plasma reactor make this procedure economically interesting for various applications ranging from simple coloring of a material to the fabrication of chromic sensor fabrics as demonstrated by preparing a range of halochromic materials.

中文翻译：

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等离子体染料涂层是一种简单且广泛适用的将染料固定在聚合物材料上的方法。


在这里，我们引入了一种新颖的概念，用于制造有色材料，通过使用等离子体产生的表面自由基共价固定所需染料，显着减少染料浸出。这种等离子体染料涂层 (PDC) 程序通过短时间等离子体处理引起的自由基加成，将自由基敏感基团功能化的染料预吸附层固定在表面。等离子体产生的表面自由基的非特异性性质允许多种染料（包括偶氮苯和磺酞）与自由基敏感基团功能化以避免显着的染料降解，与各种材料（包括 PP、PE、PA6、纤维素、和聚四氟乙烯。广泛的适用性、低染料消耗、相对较短的程序时间以及使用大气等离子体反应器进行连续 PDC 的可能性，使得该程序对于从材料的简单着色到铬传感器织物的制造等各种应用都具有经济意义，如制备一系列卤致变色材料。