Technique for directly printing metal-like or wood-like grain on plastic section bar surface

Abstract

The invention relates to a technique of directly printing metal imitation lines or wood imitation lines on the surfaces of plastic profiles, which is characterized in that the metal imitation lines or wood imitation lines are directly printed on the surfaces of plastic profiles by adopting the thermal transfer printing technology. The concrete steps are as follows: (1) cleaning and oil removing; (2) preheating; (3) coating the prime paint in rolling; (4) thermal transfer printing: a high temperature-resistance transfer printing rubber roller with 200-300 DEG C hot stamps the transfer printing film on the surfaces of the profiles with 50kg pressure; (5) coating ultraviolet proof resin in roll and packaging. The technique has the advantages that: the transfer printing press is adopted to directly print the metal imitation lines or wood imitation lines on the surfaces of plastic profiles. The surface treatment orders of small, medium and large plastic profiles can be accepted with flexible production quantity. The customized design requirements can be satisfied. The transfer printing press is low in manufacturing cost; the operating technology is lower than the extrusion process. The labor productivity and the qualification rate are high and the energy consumption is small. A large quantity of metal imitation materials can be saved.

Description

technical field

[0001] The invention belongs to the manufacturing process of plastic profiles, in particular to a process method for directly printing imitation metal or imitation wood textures on the surface of plastic profiles. Background technique

[0002] In addition to white, the plastic profiles used to make doors and windows sold on the market also have a wood-like texture surface, which can conform to the architectural style and increase the aesthetic feeling. The surface effect of this kind of plastic profile is to use a special mold to press the imitation wood texture on the surface of the profile at the same time when the profile is extruded. It consumes a lot of electric energy and heat energy, and is only suitable for mass production. Contents of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned technologies, and provide a process method for directly printing imitation metal or imitation wood te...