A Brief Introduction to the Production Technology and Characteristics of Non - woven Masterbatch

Non-woven masterbatch main components are generally divided into colorants, carriers, dispersant three parts. It is the development of the last century set of plastic, fiber and other colored new products, is the pigment super constant uniform contained in the resin and the polymer obtained in the complex.

China has 330 production of masterbatch enterprises, including plastic grade masterbatch plant has reached 300, fiber grade masterbatch plant for the 30, these masterbatch production plants are mainly distributed in Fujian, Guangdong, Shandong, Zhejiang Jiangsu, Shanghai, Liaoning, Tianjin, Beijing, Hebei and other provinces and cities. In recent years, the production capacity of serious excess, resulting in the domestic masterbatch industry generally started, in addition to new production equipment growth too fast, lack of product orders and other factors; one of the important factors is the domestic masterbatch product structure is single, incomplete, Products accounted for a large proportion, and high concentrations and high concentrations, multi-functional masterbatch and fine denier fiber masterbatch accounted for less proportion. In contrast to the higher level of masterbatch technology, pigments, dispersants and other raw materials range, has formed a series and specialized product structure.

In the variety of development, China's masterbatch manufacturers have developed a non-woven masterbatch, black masterbatch, chemical masterbatch, film masterbatch, wire and cable masterbatch, polyolefin masterbatch , PVC masterbatch, injection products with masterbatch. Non-woven masterbatch production process is generally divided into: rinse method, ink method, kneading method, metal soap method of the four, the following non-woven masterbatch four production process to do the following specific description:

Rinse method

Is the pigment, water and dispersant through the sanding, the pigment particles less than 1μm, and through the phase transfer method, the pigment into the oil phase, and then dry to produce masterbatch. The organic solvent is required for phase conversion, and the corresponding solvent recovery unit.

The process: fine paste rinse evaporate concentrate drying into the carrier extrusion granulation.

Ink method

As the name suggests, in the masterbatch production in the use of ink color paste production methods, that is, through the three-roll grinding, the surface of the paint coated with a layer of low molecular protective layer. The finely ground paste is then mixed with the carrier resin and then plasticized by means of a two-roll mill (also known as a two-roll mill) and finally granulated by a single screw or twin screw extruder.

The process is as follows: Ingredients stir the thick paste three roller grinding fine paste two roll plastic extrusion extrusion granulation.

Metal soap method

Is the pigment after grinding the particle size of about 1μm, and at a certain temperature by adding soap, so that each pigment particle surface layer is evenly wet by the soap to form a layer of saponification solution, when the metal salt solution after adding the pigment The surface of the saponification layer chemical reaction to produce a layer of metal soap protective layer (magnesium stearate), so that after the grinding of the pigment particles will not cause flocculation, while protecting a certain degree of fineness.

Kneading method

Is the pigment and oily carrier after blending, the use of pigment lipophilic this feature, through the kneading of the pigment from the water into the oil phase. At the same time by the oily carrier will paint the surface coating, the pigment dispersion and stability, to prevent the pigment cohesion.

Polypropylene non-woven masterbatch characteristics:

1, polypropylene non-woven masterbatch has a good quality and stability, especially good dispersion, quality to be guaranteed;

2, can be used directly with the mixed resin, do not pollute the container, easy to change color. The product is made of high quality organic pigments and inorganic pigments and additives, which is characterized by good filter performance, bright colors, good weather resistance, no migration, especially for polypropylene spunbond nonwovens, polypropylene filament, polypropylene Short wire, polypropylene BCF wire used.

Proportion and method of colorless masterbatch for polypropylene nonwoven fabric

Non-woven masterbatch with the raw material resin according to a certain proportion (specific according to non-woven specifications and user requirements may be), by simple mixing evenly (without adding any additives) directly use, you can achieve the required Color effect.

Polypropylene non-woven masterbatch technical indicators, serial number, project, technical indicators:

1 appearance of cylindrical particles uniform, consistent color

2 excellent spinnability

3 heat resistance ≥ 230 ℃

4 resistance to migration ≥ 4 level

5 light fastness ≥ 6 level

6 Water content (%) ≤0.2

7 Total color difference (CIELAB) ΔE <1.5

Polypropylene non-woven color masterbatch use and dosage ratio:

The product and the polyolefin resin to 1.5 to 3% ratio (specifically according to the opening performance requirements of the product) mixed evenly, and then can be normal processing.

Rui Ze Masterbatch Co., Ltd. specializing in the production of non-woven masterbatch, polypropylene masterbatch, functional masterbatch and other masterbatch products. If you need, please call us!