What is the production process of black masterbatch?-Huizhou Heyi Plastic Industry Co., Ltd.|Black Masterbatch|TPU|TPR

What is the production process of black masterbatch?

Release time:

2022-08-26

What is the production process of black masterbatch?

Black masterbatch is a color masterbatch, but its influence is different from other masterbatches. Black masterbatch is a very common color masterbatch in plastic production and processing, and it is also a relatively large masterbatch. Black masterbatch is a plastic additive made from a high proportion of colorants or preservatives and thermoplastics with good dispersibility. The epoxy resin used in it has excellent wetting and dispersing of additives and is compatible with the raw materials to be colored. Has excellent compatibility, namely: colorant medium preservative = masterbatch. So what is the production process of black masterbatch? Let's take a look at it together:

(1) Ink method: Frankly speaking, it is the production method of selecting ink pearl powder in the production of masterbatch, that is, through three-roll grinding, the surface of the color paste is covered by a low molecular structure. The ground fine pearl powder is then mixed with a medium epoxy resin, melted with a two-roll plastic mill (also known as a two-roll internal mixer), followed by a single-screw extruder or twin single-screw extruder. The screw extruder is used for granulation.

(2) Washing method: According to the diamond grinding head, use color paste, water and thickener to make the color paste particles less than 1μm, transfer the color paste to the oil phase according to the phase migration method, and then dry to prepare the color masterbatch. The solvent and its relative solvent recovery equipment can be used during phase inversion.

(3) Kneading method: After mixing the color paste and the oil-soluble medium, the color paste is lipophilic, and the color paste is washed from the water phase to the oil phase according to the pre-plasticization. In addition, the surface layer of the colorant is covered by the oil-soluble medium, so that the colorant is dispersed and stabilized, and the cohesion of the colorant is avoided.