4 results about "Color strength" patented technology

The application discloses a kind of green display photoresist color paste with dimer phthalocyanine dye and its synthesis method, the synthesis method includes the following steps: (1) coupling reaction: using phthalic dinitrile and binary alcohol, binary acid or binary ester coupling reaction occurs, after treatment, get bridging intermediate B;(2) cyclization reaction, using zinc salt and bridging intermediate B and functional phthalic dinitrile cyclization reaction occurs, after treatment, get dimer phthalocyanine dye compound C.The application provides a new type of dimer phthalocyanine dye molecule, which can be used for the preparation of green display photoresist color paste, and the heat resistance and light resistance are obviously improved compared with monomolecular dye color paste.In addition, the dimer phthalocyanine dye color paste of the application has high transmittance, high contrast, good dispersibility, color strength and other advantages.

This invention relates to the field of polymer material composition technology, and discloses a composite wax for engineering plastic masterbatch and its preparation process, comprising: eutectic melting of nonpolar polyethylene pyrolysis wax and polar oxidized polyethylene wax to construct a homogeneous eutectic system; maintaining a specific isothermal induction temperature to cause the nonpolar polyethylene pyrolysis wax to undergo phase transformation and precipitate into solid microcrystalline nuclei, while the polar oxidized polyethylene wax remains in a liquid state and impregnates and coats the surface of the solid microcrystalline nuclei to produce a microscopic core-shell precursor; and using a heat exchange molding unit to implement high-speed cooling, freezing the phase state to obtain a composite sheet with a core of pyrolysis wax and a shell enriched with oxidized wax. This invention utilizes the difference in crystallization kinetics to induce the directional evolution of the microstructure, solving the problem of uneven dispersion caused by the release of polar components, and directional enrichment of polar functional groups on the particle surface, providing interfacial adhesion, achieving efficient dispersion of pigments in the resin matrix, and improving color strength.

This invention relates to the field of C09D11 / 38 dispersants, and more specifically, provides an aqueous dispersant and its preparation method. The aqueous dispersant provided by this invention comprises: ethyl polyethylene glycol, tert-butyl polyethylene glycol, naphthyl polyethylene glycol, and deionized water. It can be adsorbed onto the surface of pigment particles through different anchoring groups, and further enhanced by steric hindrance groups, allowing the pigment particles to maintain a stable dispersion state while retaining low viscosity, thus improving the performance of the aqueous dispersant. Furthermore, it imparts excellent gloss and color strength to the pigment, making it suitable for industrial production.

A method for obtaining indigo-dyed yarn with controlled ring dyeing is provided. A system and apparatus for indigo dyeing yarn are also provided, which produce dyed yarn with uniform color intensity.