Method for improving brilliance and tinting strength of polyester fiber
A polyester fiber and vividness technology, which is applied in the field of chemical fiber manufacturing, can solve the problems of insufficient fiber vividness and tinting strength, and achieve the effects of improving polyester vividness and tinting strength, stable pressure, and obvious cost and energy consumption
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Embodiment 1
[0024] The method for improving the brightness and tinting strength of polyester fibers involved in the present embodiment may further comprise the steps:
[0025] S1. Preparation of colored masterbatch: the prepared colored masterbatch contains 20-30% of pigment, 5-10% of ethylene acrylate copolymer, 2-5% of dispersant, and the balance is carrier resin. Ethylene acrylate copolymer has polar groups at both ends, one end can be combined with polyester molecules, and the other end can be combined with pigments. It can improve the binding ability of polyester molecules and pigments. The used pigments are purchased toner powders that can be used for polyester stock solution coloring, and the colors can be red, blue and other colors.
[0026] The coloring masterbatch prepared in this step contains 20% of pigment, 5% of ethylene acrylate copolymer, 2% of dispersant, and the rest is carrier resin. The choice of the carrier resin is the same as that of the prepared chemical fiber ra...
Embodiment 2
[0036] A kind of method for improving the vividness and tinting strength of polyester fibers involved in this embodiment, the difference from Embodiment 1 is that the prepared coloring masterbatch contains 25% pigment, 7% ethylene acrylate copolymer, 3 % of dispersant, the balance is carrier resin. The dispersant used is prepared by mixing polyethylene wax and simethicone in a ratio of 4:1.
Embodiment 3
[0038] A kind of method for improving the vividness and tinting strength of polyester fibers involved in this embodiment, the difference from embodiment one is that the prepared coloring masterbatch contains 30% pigment, 10% ethylene acrylate copolymer, 5% % of dispersant, the balance is carrier resin. The dispersant used is prepared by mixing polyethylene wax and simethicone in a ratio of 3:1.
[0039] The method for improving the vividness and tinting strength of polyester fibers involved in the present invention is different from the previous factory production, in order to increase the vividness of the color, and artificially increase the concentration of pigment content, or search for pigments with higher tinting strength and higher price, To meet the color vividness requirements in the market. It uses ethylene acrylate copolymer on the basis of the existing pigments, which improves the vividness of the color and achieves a lower added cost than the ordinary market. The...
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