What are the printing methods of BOPP color thermal synthetic paper?

The printing method of BOPP (Bidirectional polypropylene) color thermal synthetic paper is mainly based on its material characteristics and market demand, and a variety of printing technologies can be used. Here are some common printing methods:

1. Thermal printing

Definition: Thermal printing is a colorless thermal dye layer transferred to paper, when the graphic part of the heating, that is, the production of color printing method. This method is especially suitable for thermal synthetic paper, because thermal paper can make physical or chemical properties of substances (color developers) change under the action of heat to obtain images.

Type:

Direct thermal printing: the thermal agent is applied to the paper to make it a thermal recording paper, and the thermal recording paper is directly colored under the action of heat.

Indirect thermal printing: Using common printing methods, the thermal ink is coated on the transfer paper, and then the paper is in direct contact with the substrate, passing between the thermal printing head and the impression cylinder, due to heating and pressure, the ink is melted and transferred to the substrate.

Advantages: Thermal printing equipment small size, compact structure, no noise, good reliability, strong adaptability, can be used for a variety of substrates, including plastics such as BOPP synthetic paper.

2. Gravure printing

Features: Intaglio printing of the layout of the graphic part of the concave, while the blank part still maintains the original plane. When printing, ink is filled into the concave graphic portion and then transferred to the substrate. This method is suitable for large-area, high-precision color printing, including BOPP color thermal synthetic paper.

Advantages: Gravure printing can present rich color levels and delicate image effects, which is very suitable for packaging printing and other fields.

3. Flexographic printing

Features: Flexographic printing uses a soft photosensitive resin plate as a printing plate, and the ink is transferred to the printing plate through the mesh roller, and then transferred to the substrate. This method is suitable for printing on a variety of materials, including BOPP synthetic paper.

Advantages: Flexographic printing has a wide range of substrate materials, low printing pressure, thick ink layer, bright colors and other characteristics, and the plate making cycle is short, low cost.

4. Inkjet printing

Features: Inkjet printing is a non-contact printing method, through the nozzle ink in the form of tiny ink droplets sprayed onto the substrate to form an image. This method is especially suitable for short plate printing, personalized printing and other fields.

Advantages: Inkjet printing has the characteristics of fast speed, low cost, strong flexibility, and can achieve full color printing.

5. Other printing methods

In addition to the above common printing methods, according to the specific needs and equipment conditions, BOPP color thermal synthetic paper can also use other printing methods, such as letterpress printing, screen printing and so on. These printing methods have their own characteristics and application range, and can be selected according to the actual situation.

In summary, there are a variety of printing methods for BOPP color thermal synthetic paper, including thermal printing, gravure printing, flexographic printing, inkjet printing and so on. When selecting the printing method, it is necessary to consider many factors such as material characteristics, printing effect, cost effectiveness and so on.