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Analysis of the coloring principle of Polyester masterbatch ‌!

1. Composition of polyester color masterbatch

Polyester color masterbatch is a kind of granular substance containing colorant, its main components include colorant, dispersant, auxiliary and so on. Colorant is the main component of polyester color masterbatch, it can be selected according to different needs of different types and colors. Dispersant is the material that helps the polyester masterbatch to disperse evenly in the polyester fiber, and the auxiliary agent plays the role of assisting dissolution, suspension and thickening.

Second, the coloring principle of polyester masterbatch

The coloring principle of polyester masterbatch is based on the physical interaction between dye molecules and polyester molecules. When the polyester masterbatch is added to the dyeing solution of the polyester fiber, the colorant molecules will be released in the dyeing solution, and then dispersed evenly in the polyester fiber with the help of dispersing agents and additives. With the continuous penetration and diffusion of the dyeing solution, the physical interaction between the dye molecules and the polyester molecules inside the polyester fiber will also occur, so that the dye molecules are adsorbed on the polyester molecules, thus completing the coloring of the polyester fiber by the polyester masterbatch.

Third, the action mechanism of polyester masterbatch

The action mechanism of the polyester masterbatch is to form a protective shell between the polyester fiber and the dyeing solution to prevent the dye molecules from directly combining with the polyester molecules, so as to ensure the uniformity and firmness of the dyeing. Under the action of the polyester masterbatch, the dye molecules can be fully dispersed in the polyester fiber, and at the same time, they can form physical adsorption with the polyester molecules to achieve uniform coloring of the polyester fiber.

Fourth, the production process of polyester masterbatch

The production process of polyester masterbatch mainly includes the steps of pigment selection, pretreatment, dispersion and drying. In the selection of pigments, it is necessary to select pigments with certain temperature and light stability according to different polyester fibers and fabric requirements. Pretreatment is to disperse and filter the pigment to remove some impurities and insoluble substances to ensure the quality and stability of the polyester masterbatch. Dispersion is to mix the pigment and the dispersant after pretreatment, and make the pigment molecules evenly dispersed in the dispersant through the action of mechanical force and shear force. Finally, the disperse pigment is dried to make polyester masterbatch.

Conclusion:

In this paper, the coloring principle of polyester color masterbatch is analyzed in detail from the aspects of composition, coloring principle, action mechanism and production technology, and the action mechanism and application range of polyester color masterbatch in polyester fiber and fabric are expounded. Through in-depth understanding, we can better apply polyester masterbatch to polyester coloring, and realize uniform dyeing and color beauty of polyester fiber and fabric.

Longkou Huacai Plastic Industry Co., Ltd is a modern industrial enterprise integrating technology, production and sales with strong technical strength, advanced equipment and vigor. Specializing in the production of polypropylene masterbatch, polyamide masterbatch, polyester masterbatch, non-woven fabric masterbatch, plastic masterbatch, functional masterbatch, modified plastics, etc., can be widely used in chemical fiber, non-woven fabric, injection molding, blow molding, extrusion and other industries.