Preparation method of high-concentration colorful antibacterial master batch

Abstract

The invention discloses a preparation method of a high-concentration colorful antibacterial master batch. The preparation method comprises the following steps that 1) raw materials comprising, by weight, 10-30 parts of PET, 0-50 parts of PBT, 0-48 parts of pigments, 0.5-2 parts of a light stabilizer, 0.5-1.5 parts of an ultraviolet light absorber, 6-18 parts of antibacterial powder, 0.1-0.5 part of an antioxidant, 0.3-1.5 parts of a dispersing agent and 0.5-1.2 parts of a rheological modifier are obtained; 2) the PET and the PBT in the raw materials are sliced and crushed to obtain 30-mesh powder, and then the obtained powder is subjected to vacuum drying; 3) the dried powder and other components in the raw materials are put into a high-speed mixer, and the raw materials are stirred and mixed to obtain a mixture; 4) the obtained mixture is put into a double-screw extruder for extrusion and water cooling, and granulation is conducted to prepare the high-concentration colorful antibacterial master batch. The double-screw extruder is provided with a vacuumizing device, the process temperature during extrusion is 245-280 DEG C, and the rotation speed of screws is 245-400 rpm. The prepared master batch is high in color pigment concentration and high in coloring strength; moreover, the functionality of the master batch is improved, and the application range is wide.

Description

technical field [0001] The invention relates to a preparation method of high-concentration color antibacterial masterbatch. Background technique [0002] With the gradual improvement of people's quality requirements for textiles, their environmental protection and functionality have become two aspects that people pay more and more attention to. Traditional textiles can no longer meet the needs of the modern market. The research and development of functional fibers has become the main development direction of modern fibers. At present, most of the colored functional fibers or textiles are obtained through printing and dyeing and functional finishing, but this method has problems such as high energy consumption, large amount of waste water, and unsustainable functionality. Now, it is also useful to give fibers different colors and functions by adding color masterbatches and functional masterbatches. The way of using masterbatch can effectively solve these problems, and the pr...

AI Technical Summary

Problems solved by technology

However, the toner concentration of the masterbatch in the prior art is low, which will directly determine the final coloring effect of the product, and the obtained fiber color content is also low, and the heat migration resistance is poor, and the washing fastness is poor.

In addition, when spinning deep-dyed colored functional PET fibers, the spinnability is poor, there are many broken ends, the service life of the spinning components is short, and the replacement is frequent