With the rapid development of China's economy, chemical fiber masterbatch industry has also witnessed substantial development along with the development of related industries. The technical level of chemical fiber masterbatch has also been making unprecedented progress, and its application fields are constantly expanding. However, due to the impact of the traditional Chinese market competition mode, the product competitiveness is not strong, especially in terms of quality requirements. In particular, polypropylene manufacturers pay more attention to the quality of chemical fiber masterbatch on the quality of polypropylene. Today we will talk about this issue.

Chemical fiber masterbatch in polypropylene fiber dispersion
 With a variety of colors of polypropylene fiber, pigment particles in the polypropylene fiber evenly dispersed due to the key is the pigment particles are fully refined, and evenly distributed in polypropylene fibers (mixed). Fine dispersion is the pigment aggregates or reunion broken, so that the particles to a minimum, and the key lies in uniform dispersion, the effect of dispersion of colored polypropylene fiber luster, transparency, gloss, fiber strength, elongation, resistance to aging , Electricity rate, etc. have an impact.

 In general, the pigment dispersed particle size less than 1um can be used for fiber or ultra-thin film, and more than 5um will lead to the fiber surface matte, more than 10um will lead to fiber surface spots, streaks, and with increasing particle size Fiber rupture strength, elongation declining. The finer the color strength, the better the dispersion, while the smaller the particle size, the larger the surface, resulting in an increase in hiding power.

As the state of the pigment particles are primary particles, aggregates, reunion three general commodity pigment particles are larger than the circle of particles (about 75-250um), it must be dispersed, the so-called pigment dispersion is the reunion Body crushing refinement process.

Pigment dispersion, the first wetting pigment with a wetting agent, coated on the pigment surface, reducing the cohesion between pigments, reducing the energy required to crush the pigment reunion, followed by the pigment grinding and refining, leading among the pigment particles The free movement (impact stress) and the color reunion of particles around the media by the shear stress to the reunion particles broken. Pigment dispersed and refined, the particle size decreases, the surface area increases, the pigment surface free energy also increased the refined pigment instability, so the pigment surface to be further coated to reduce the newly formed interface surface To prevent re-agglomeration, the pigment is then mixed and dispersed in the melt. The wetted and comminuted pigment is evenly dispersed throughout the material to be colored.