Color masterbatch for fibers suitable for high-temperature rinsing and disinfection and preparation method of color masterbatch

Abstract

The invention provides color masterbatch for fibers suitable for high-temperature rinsing and disinfection. The color masterbatch is prepared from components in parts by weight as follows: 10-90 partsof PET, 0-40 parts of PBT, 0-35 parts of pigment and 0-5 parts of an assistant, wherein the intrinsic viscosity of PET is 0.66-0.82 dl/g, and the intrinsic viscosity of PBT is 0.82-1 dl/g. The invention further provides a preparation method of the color masterbatch. With adoption of the color masterbatch for the fibers suitable for high-temperature rinsing and disinfection, the problems about mass dyeing and spinnability can be solved, drift filaments and broken filaments can be reduced, the service cycle of a spinning assembly can be prolonged, and the problems that dyeing fastness cannot meet the standard, the environment is polluted and the like can be solved. In order to guarantee the spinnability (fewer drift filaments and broken filaments and slow boosting of the assembly), relatedindicators of the masterbatch are controlled strictly, the intrinsic viscosity of the masterbatch is controlled at 0.35-0.55 dl/g, and the FPV (filtering performance) of the masterbatch is controlledat 0.01-1.00 MPa.

Description

technical field [0001] The invention relates to a fiber color masterbatch suitable for high-temperature rinsing and disinfection and a preparation method thereof. Background technique [0002] High-temperature rinsing and disinfection treatment requires high color fastness of fibers, so white or black fibers are generally used in the market, and there are few colored fibers. Because the original dyeing process is basically unsatisfactory in terms of color fastness, and the cost is relatively high. It is also difficult to meet the color fastness requirement by using ordinary pre-spinning dope coloring. In order to meet the color fastness requirement, some special pigments must be selected as raw materials. However, these pigments all have certain common features, that is, it is difficult to disperse, resulting in unsatisfactory spinning conditions during downstream spinning (flying yarn, severe end breakage), fast boosting of components, and high loss. [0003] Color fastne...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of masterbatch for fiber that is suitable for high-temperature rinsing and disinfection and its preparation method. Poor spinnability, reduce yarn drifting and end breakage, and prolong the service life of spinning components