Here's an Plastic film blowing with two color gravure printing machine overview of the process :
1. Plastic Film Blowing:
The plastic film blowing process involves extruding plastic resins, typically polyethylene (PE), polypropylene (PP), or other suitable materials, into thin plastic films using a film blowing machine.
The film blowing machine can be configured for co-extrusion, enabling the simultaneous extrusion of two different plastic materials, each with its own distinct color.
The two-color plastic film is formed by combining the extruded layers from the co-extrusion process.
2. Gravure Printing:
Gravure printing is a high-quality, high-speed printing process that uses engraved cylinders or plates to transfer ink onto the plastic film.
In a two-color gravure printing machine, there are two separate printing units, each dedicated to a specific color. These units are equipped with engraved cylinders or plates that correspond to the design and color required for each layer of the film.
The plastic film is fed through the gravure printing machine, and each color is applied sequentially to create the final printed design.
3. Lamination and Conversion (Optional):
After printing, the plastic film can undergo additional processes such as lamination, where multiple layers are bonded together to enhance barrier properties or add functionality.
The printed and laminated film can then be converted into various packaging products, such as bags, pouches, labels, and wraps.