Spunbond nonwoven is the fastest growing non-woven products in the industry, accounting for about 40% of total non-woven fabrics. Polypropylene spunbond nonwovens products are widely used in medical materials, sanitary materials, furniture fabrics, carpet fabrics, decorative materials, protective materials, automotive industry and so on.

Polypropylene is a pure linear saturated hydrocarbon polymer, macromolecules do not contain polar groups and active groups, with a high degree of chemical stability. Polypropylene fibers have high crystallinity, dense structure and strong hydrophobicity. These characteristics make it difficult for polypropylene to provide dyeing seats, and dye molecules can not or hardly diffuse into the interior. Therefore, in order to improve the practicality and aesthetics of polypropylene non-woven fabrics, the use of masterbatch before spinning in the production of dyeing. In this paper, the choice of non-woven masterbatch non-woven spunbond production impact analysis.

Non-woven masterbatch ingredients used Masterbatch refers to the pigment by 20% to 80% by grinding or twin-screw extruder uniformly dispersed in the resin and the resulting color particles, with excellent coloring effect, ease Automatic measurement and transportation, energy conservation, no dust, no pollution and so on. The international masterbatch market is concentrated in the United States, Western Europe and Japan. China's masterbatch manufacturers are mainly located in Guangdong, Zhejiang, Jiangsu, Shandong, Beijing and Shanghai. Spunbond polypropylene production, non-woven masterbatch selected from the following aspects of the main considerations.

1, pigment

2, carrier

3, dispersant;

4, Masterbatch comprehensive index;

5, the amount of masterbatch added;

6, mixing masterbatch position;

7, other aspects: In order to reduce the color of the finished product, pay attention to the following links in the production. (1) Establish a standard sample of each color masterbatch at a certain ratio, proof test the mixed masterbatch according to the ratio of the standard sample, and compare with the standard sample; (2) Of the same species, the same batch of masterbatch mixing, with the same species, different batches of masterbatch also have to be mixed; (3) masterbatch into the screw before, we should try to remove the particles are too large and too small color masterbatch Grain, in order to ensure that it melts evenly and completely in the screw; (4) Try not to change masterbatch batch number midway in producing a color number.

Color is a non-ferrous spunbond polypropylene non-woven fabric production of a common phenomenon, masterbatch composition and the correct choice of the correct process control can be the maximum color difference in a reasonable range, improve product quality.