Patterning process for rotationally-molded product

Abstract

The invention relates to the technical field of manufacture of plastic products, in particular to a patterning process for a rotationally-molded product. The process is based on a rotational molding process, and comprises the following steps of: attaching a layer of colored solvent to a part to be patterned according to the shape and size of a pattern in a mold, closing the mold, feeding raw materials for producing the rotationally-molded product, and patterning the rotationally-molded product by using the rotational molding process to integrate the colored solvent with the rotationally-molded product. The obtained pattern can be more firmly combined with the product, difficultly falls, and is fadeless, bright, durable, long in service life and attractive and elegant in appearance, and the combined part of the pattern and the product is flat and smooth; moreover, the patterning process is simpler, low in investment cost, in line with industrial production and utilization and favorable for industrial upgrading, and the production efficiency and the quality are greatly improved; and the patterning process is applied to the manufacture of multicolor and multiform patterns, the service life of the pattern is the same as that of the rotationally-molded product, and the pattern is high in cost performance.

Description

technical field [0001] The invention relates to the technical field of plastic product production, in particular to the technical field of rotational molding process production of plastic products. Background technique [0002] At present, the production of plastic products is mainly realized through injection molding process and rotational molding process. The rotational molding process is also called rotational molding and rotational casting molding. Inside, through the heating of the mold and the vertical and horizontal rolling and rotation, the material is evenly filled with the inner cavity of the mold by its own gravity and centrifugal force and melted, and the hollow product is obtained after being demolded after cooling. For plastic products made by rotomolding technology, they are usually only single-color products. To make patterns on rotomolded products, the current method is to paste them or directly form them in one piece. One-piece molding can only make pattern...

AI Technical Summary

Problems solved by technology

For plastic products made by rotomolding technology, they are usually only single-color products. To make patterns on rotomolded products, the current method is to paste them or directly form them in one piece. One-piece molding can only make patterns of the same color as rotomolded products. , the color is not bright, and can not play a good role in marking or beautifying; and using paste, mainly through marking and then sticking to the surface of the rotational molding product, or by transfer printing, this mode can be realized in Patterns of different colors are made on the surface of rotational molding products, but the manufacturing process is complex, low in efficiency, and high in cost. Moreover, due to poor surface adhesion of rotational molding products, the adhesion strength cannot meet the requirements of the use effect, and the quality is poor and there are exposed edges. Frequent shedding, fading, etc., short service life