3results about How to "Good coloring effect" patented technology

A method for preparing colored radiant cooling wood is disclosed. The purpose of this invention is to solve the application problems of existing microstructured colored radiant coolers, such as difficulty in preparation, high production costs, and lack of environmental friendliness. The preparation method includes: 1. Immersing dried wood in a lignin removal solution under vacuum conditions, followed by a water bath reaction at 75–80°C; 2. Dispersing fluorescent dye in an organic solvent, mixing it with methyl methacrylate monomer, adding the initiator azobisisobutyronitrile (AIBN), and prepolymerizing at 70–90°C; 3. Permeating the delignified wood into a prepolymerized dye / MMA mixed solution under vacuum; 4. Heating and polymerizing at 70–90°C. The delignified wood used in this invention is green and environmentally friendly. While maintaining excellent mechanical strength, the shape and size of the colored radiant cooler can be rationally set according to the needs of different scenarios, taking into account both flexibility and toughness, and is cost-effective.

This invention provides a hair dyeing device based on an immersion mechanism, comprising a dyeing section, a liquid storage section, and a pumping section. The pumping section pumps the hair dye paste from the liquid storage section to the dyeing section. The dyeing section includes a front outer shell and a front upper cover arranged in a relatively open and closed manner. The front end of the front outer shell has a discharge structure communicating with the liquid storage section. A vibration mechanism is installed inside the immersion chamber. The discharge structure forms an immersion chamber with the front upper cover. During hair dyeing, the hair section is located in the immersion chamber and comes into contact with the hair dye paste inside. The vibration mechanism immerses the hair section in the hair dye paste through vibration. This invention, by forming an immersion chamber in the dyeing section, ensures that the hair section is completely enveloped and immersed in the hair dye paste. Simultaneously, the built-in vibration mechanism drives the hair dye paste to fully mix and contact with the hair section, effectively avoiding the problem of uneven distribution of hair dye paste among the hair strands, significantly improving color uniformity and coloring effect, and enabling scientific control of the amount of hair dye paste used, avoiding waste.

This invention discloses a high near-infrared reflectance yellow inorganic pigment, its preparation method, and its application, belonging to the field of inorganic pigment technology. The invention uses La, Y, and Cr sources as raw materials, and formulates them according to stoichiometric ratios. A LaY pigment with a perovskite structure is synthesized via a sol-gel method. 1‑X Cr X O3 (0)