Preparation method of master batch with high concentration and high color fastness

Abstract

The invention discloses a preparation method of master batch with high concentration and high color fastness. The preparation method comprises the following steps: 1) weighing raw materials consistingof, in parts by weight, 8-20 parts of PET, 0-50 parts of PBT, 0-50 parts of a coloring agent, 0.2-2 parts of an ultraviolet light absorber, 0.2-2 parts of a light stabilizer, 6-20 parts of cooling powder, 1-3 parts of a composite toughening agent, 0.2-1 part of an antioxidant, 0.3-1.5 parts of a dispersing agent and 0.5-1.2 parts of a rheological modifier; 2) slicing PET and PBT in the raw materials, and carrying out crushing and drying; 3) fully stirring and uniformly mixing the dried powder and other components in the raw materials; and 4) putting a mixture obtained in the previous step into a twin-screw extruder for extrusion granulation. The master batch colorant prepared by using the method is high in concentration, allows the dyeing rate and color fastness of fibers to be improved and enables the fibers to have good weather resistance and a good instant cooling function.

Description

technical field [0001] The invention relates to a preparation method of a masterbatch with high concentration and high color fastness. 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,...

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