Production method of black antibacterial low-shrinkage FDY fibers

Abstract

The invention relates to the technical field of fiber preparation, and particularly relates to a production method of black antibacterial low-shrinkage FDY fibers. An optical polyester melt is used asa raw material, and the optical polyester melt is pressurized by a booster pump through a melt conveying pipeline and then enters a melt cooler; after the melt is cooled by using the melt cooler, black antibacterial master batches are added online, and are fed into a spinning box body after passing through a dynamic mixer; after being metered by a metering pump, the mixture is filtered by the spinning assembly in the spinning box body and then is extruded; after the spinning is cooled by a side air blowing process, the fibers enter a winding oil wheel for being subjected to oiling, pre-networking, hot roller heating process and a main network; and next, the fibers are subjected to supplemental heat setting through a rear heating plate device, and finally the fibers are rolled and formed through an ACW winding head. According to the production method of the black antibacterial low-shrinkage FDY fibers, the product has high antibacterial performance, and meanwhile, the boiling water shrinkage rate of the product is reduced from 5% to about 2.5%. The product is suitable for novel fields such as suede fabric, fiber blending and the like.

Description

technical field [0001] The invention relates to the technical field of fiber preparation, in particular to a method for producing black antibacterial and low-shrinkage FDY fibers. Background technique [0002] Polyester fiber is currently the largest and most widely used synthetic fiber in the world. However, due to its own characteristics, its macromolecular chain is regular and there are few hydrophilic groups, its colorability is poor, and the conventional dyeing of polyester is in It is carried out under high temperature and high pressure conditions. Due to the survival and physical and chemical treatment of polyester, it is difficult to ensure the uniform distribution of its internal structure crystal region and amorphous region, resulting in deviations in dyeing and dyeing speed, resulting in color difference, color spots and other defects. With the improvement of people's living standards, the requirements for fabrics are getting higher and higher, and the exploration...

AI Technical Summary

Problems solved by technology

[0002] Polyester fiber is currently the largest and most widely used synthetic fiber in the world. However, due to its own characteristics, its macromolecular chain is regular and there are few hydrophilic groups, its colorability is poor, and the conventional dyeing of polyester is in It is carried out under high temperature and high pressure conditions. Due to the survival and physical and chemical treatment of polyester, it is difficult to ensure the uniform distribution of its internal structure crystal region and amorphous region, resulting in deviations in dyeing and dyeing speed, resulting in defects such as color difference and color spots.

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