Masterbatch coloring, also known as liquid color, namely ordinary spinning resin mixed with a resin containing a small amount (20 ~ 5O%) a high concentration of the pigment (masterbatch), followed by melt spinning preparation colored fibers.

Masterbatch mainly by the pigment, and dispersant composed of polymer carrier. Which process comprises grinding pigment fully kneaded, materials and various additives, granulation in three steps. After the selected basic chromatography, pigment, carrier and other additives into a kneader heated and kneaded, so that a highly dispersed pigment, and then extruded sheet was cooled pulverizing, pelletizing extruder with a screw, to obtain a polypropylene meet the quality requirements masterbatch. The quality of the main raw material of the process, there are strict requirements.

  
pigment

Selected pigments include inorganic and organic pigments into two categories. Conventional inorganic pigments include titanium dioxide (TiO2), zinc white (znO), carbon black, organic pigments are widely used are phthalocyanine, azo, restore and other pigments. Polypropylene coloring pigment in many properties have strict quality requirements, several key indicators of the requirements in Table 1.

Polymer carrier

Should use some good mixed and polypropylene have idle capacity and wet, and with anti-flocculation of pigments (pigments by grinding up to a certain fineness, in spinning and reunion phenomenon called flocculation) and good dispersion polymers, such as molecular weight polyethylene or MI = generally low 20g / 10min melting point than the spinning of polypropylene resin.

Dispersant

Selection of pigments deflocculating polymer melt flow properties and improved performance, improved spinnability polyolefin or low molecular monomers, cationic or anionic surfactants do dispersion media, such as low molecular weight polyethylene wax, a heterocyclic tertiary amine , sodium dodecyl sulfate, liquid paraffin and the like.

We Zhejiang color masterbatch New Materials Co., Ltd. specializes in the development, production, fine choice of materials, sophisticated equipment, has been committed to high, fine, sharp, new, special masterbatch manufacturing. For our masterbatch product details, please call us Oh! We offer a better solution for you!