The paper starts from the people on the bedroom wall decorative material selection,production,design point of view with the material color purity as the breakthrough point,and by exploring on natural color purity,painting color purity and digital color purity expatiates the source and way expressing from the reason and emotion on the color purity of bedroom wall decorative material. It emphasizes that in the social work of home beautification object-human and human-human are reason and emotion from an indivisible whole.%从人们对卧室墙面装饰材料选择、生产、设计的角度出发，以材料色彩纯度层面研究为切入点，通过对自然色彩纯度、绘画色彩纯度、数字色彩纯度的探究，提出卧室墙面装饰材料色彩纯度理对情表达的根源与途径，并强调在家居美化的社会劳动中，物与人以及人与人是理与情的整体不可分割的关系。
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