Color-accurately-controllable composite fiber

Abstract

The invention relates to the technical field of textile fibers, in particular to a color-accurately-controllable composite fiber. Dyeing master batches in corresponding colors are selected according to required colors and then subjected to mixed fusion with a high polymer to form spinning solution melt, and the spinning solution melt is extruded from a spinneret component to obtain the composite fiber with the cross section in a multi-component structure. Fiber compounding according to the required colors can be realized, the composite fiber in the required colors can be prepared according toa red-green-blue color model principle, and the prepared composite fiber is uniform, stereo and bright in color. By changing of a slice area ratio of various colors in the fiber, fibers in different colors can be prepared, the requirement on the fibers in any different colors can be met, and accuracy in fiber color control is achieved. In addition, color uniformity of the composite fibers in different batches can be guaranteed while color difference is avoided, and high production efficiency and environmental friendliness are realized.

Description

technical field [0001] The invention relates to the technical field of textile fibers, in particular to a composite fiber with precise and controllable color. Background technique [0002] The development trend of fiber technology in the world today is high quality, high function, low energy consumption, and low emission. The fiber technology of dope color is a new technology developed to adapt to this development trend. Compared with traditional dyeing methods, dope color has more advantages It has the advantages of simple process, green environmental protection, uniform product color and good color fastness. The stock solution color method is to add an appropriate color agent to the spinning solution, and after fully mixing, dissolving and filtering, it can also be quantitatively injected into the color agent or colored stock solution before entering the spinneret, and then spun into a colored product after being mixed by a static mixer. fiber. Compared with traditional ...

AI Technical Summary

Problems solved by technology

[0006] However, the above patents still have the following disadvantages: First, the color cannot be precisely controlled, because the above two patents both use the method of first mixing the colorant with the spinning solution, and then In the preparation process of spinning, although dyed nanocellulose is used as a colorant or aliphatic polyester polyol is used as a colorant carrier for uniform coloring, neither of them fundamentally solves the technology of precise color control question

Second, when producing different batches of composite fibers, it is difficult to ensure that there will be no weighing errors in the raw materials between batches. Therefore, when errors exist, the color difference of fibers between different batches will inevitably occur, so it cannot be very accurate. Control the color of composite fibers

Third, the preparation process is complicated and the production efficiency is low. When using the base color to mix different colors, it is necessary to prepare a small sample for comparison with the sample. When there is a certain weighing error, it needs to be re-prepared. In repeated tests, it also increases energy consumption, resulting in low production efficiency

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