What is the difference between flexographic printing machine and relief printing machine

Author： Powerful Plastic Machinery Time：2022-10-13 15:05:59 Read：272

Flexographic printing machine: What is the difference between flexographic printing machine and relief printing machine

Different processes

1. Flexographic printing machine: the fluid ink with strong fluidity is used. The ink is transferred to the graphic part of the printing plate from the ink bucket rubber roller and the anilox ink transfer roller and inked, and then the printing pressure is applied by the pressure cylinder to transfer the ink on the printing plate to the substrate, and finally the printing process is completed through the dry surface.

2. Letterpress printing machine: the printing process of using lead plate and photosensitive resin plate is: preparation before plate loading → plate loading → printing → quality inspection.

 Different characteristics

1. Flexographic printing machine: The machine is simple in structure, so it is easy to operate and maintain. The price of flexographic printing machine with the same function is about 30-50% of that of offset printing machine or gravure printing machine; The genetic material has strong adaptability, and satisfactory printing results can be obtained from 0. plastic film to corrugated cardboard.

2. Relief printing machine: The paper back of the printed matter has slight raised marks, the lines or dot edges are neat, and the printing ink appears light in the center. The raised image edges are under heavy pressure, so there are slight raised marks. The ink color is thick (the thickness of the ink layer is about 7 μ m）。 It can be printed on rough substrate. The color reproduction is general.

Structure of flexographic printing machine:

1. The flexographic printing machine is mainly composed of four parts, namely, unwinding and feeding parts, printing parts, drying parts and rewinding and receiving parts. In modern flexographic printing machines, there are generally tension control, edge control, register control, print observation and other measurement and control devices, as well as mechanical condition monitoring and fault diagnosis systems.

2. In addition, in order to expand the scope of application, some flexographic printing machines are also equipped with devices such as glazing, film covering, bronzing, slitting, die cutting, punching, silk screen printing, and gravure printing units, becoming a flexographic joint production line.