Red, orange, yellow, green, rainbow colors; TaoGongLiuLu flowers laugh, is the color of spring; trees and lush green, the color of the summer; golden harvest everywhere hope, the autumn colors. So what is the color of polypropylene yarn it? That is polypropylene masterbatch friends. PP masterbatch coloring pigment is based, so essential to select a pigment, it is related to the coloring effect is good or bad. You may ask, "how to choose paint that it?" Xiaobian Weapon, be sure to look carefully Oh!

Applicable pigment types:

Polypropylene colored pigment is mainly divided into organic pigments and inorganic pigments. Organic pigments are characterized more soluble in common solvents, transparency, tinting strength, the proportion of small, with less color bright, but poor heat resistance, prone to sublimation and pyrolysis and, therefore, use is restricted. Inorganic pigments are dyed before spinning polypropylene primary colorant, its good light and heat stability, weatherability and migration resistance is good and has been widely used. The downside is that some of the paint is faded, not bright, and easy to plug in the spinning process spinning nozzle assembly, these negative factors can be addressed through the continuous improvement of the quality of the dye.

Untreated aggregate or aggregates are not directly using a commercially available pigment mostly, otherwise it will inevitably appear for coloring polypropylene broken wire, wool yarn, color "blur" and serious plugging problems. So the polypropylene colorant has the following requirements:

Colorant for three requirements:

1. the characteristics of coloring polypropylene requirements

Poly pigment should have good compatibility rain terpene resins, additives and added good synergy; tinting strength, good dispersion; heat, weather and chemical resistance and good, and in the spinning process in the Pack firmly, no significant adverse effect on product performance

2. The requirement of thermal stability of the colorant

Polypropylene spinning generally carried out at 270 ~ 300 ℃, the heat and poor color pigment decompose, so the optimum temperature resistance should colorant is continuing 30min at 300 ℃ does not change color, can be relaxed to use cooling Masterbatch After 10min at 240 ℃ continuous colorant is not decomposed can be used.

3. The pigment is dispersed uniformly in favor of fine

PP masterbatch organic pigment particle size to 1 ~ 0.02um appropriate, inorganic pigments require 99% can not be too much to lum, generally the proportion of 0.3 ~ 0.6um higher, better dispersion. But also vary depending on the pigment, such as titanium dioxide 1 ~ 0.2um, black O.1 ~ 0.01um appropriate. If some paint too small, such as less than 0.2um particles is large proportion will be, first, re-flocculation of particles too difficult to maintain particle state; second, due to the diffraction of visible light to bypass wear pigment particles shot in the past, increased permeability of the coloring matter is difficult to stabilize the color, for example: red may become yellow, blue becomes greenish and so on.

Color selection is good or bad will not only affect the coloring effect, but also affect the quality of polypropylene fiber, as well as productivity. Therefore screening pigment, remember the above three criteria Oh! Improve staining quality is so so easy!

RAJ Yancheng Masterbatch Co., Ltd. Main polypropylene, nonwovens masterbatch, black masterbatch masterbatch products. If necessary, please call us!