What post-processing process is required for self-adhesive coated paper after printing?

After printing, in order to improve its appearance, protect the printed pattern and meet the specific needs of use, it is usually necessary to carry out a series of post-processing processes. These processes mainly include but are not limited to the following:

1. Die cutting

Function: The printed self-adhesive coated paper is cut according to the predetermined shape to form a single label or a specific shape of the product.

Process: The die-cutting machine is used to accurately cut the self-adhesive coated paper. The selection and adjustment of the die-cutting knife is very critical to ensure the smooth cutting edge and the accurate shape.

Note: In the process of die cutting, it is necessary to strictly control the pressure and Angle of the tool to avoid inaccurate cutting or damage to the label edge.

2. Waste disposal

Function: Remove the waste generated after die cutting, leaving only the required label part.

Process: The excess parts and waste generated in the die-cutting process are removed by the waste removal machine or manual method.

Note: Be careful when discharging to avoid damaging the edge and surface of the label.

3. Slitting

Function: The continuous printing of self-adhesive coated paper is cut according to the predetermined width or length to adapt to different use needs.

Process: Use the slitting machine to accurately slitt the self-adhesive coated paper to get the label or product of the right size.

Note: In the scuttling process, the parameters of the scuttling machine need to be precisely adjusted to ensure the accuracy of the scuttling size.

4. Inspection

Function: Check the quality of the label after cutting to ensure that the size, color and shape of the label meet the requirements.

Process: Through visual inspection, machine inspection and other ways, the label for a full range of quality inspection.

Precautions: The inspection process should be carried out in strict accordance with the standards, and the unqualified labels should be removed or reworked.

5. Packing

Function: Organize and package qualified labels for easy storage and transportation.

Procedure: Select an appropriate packaging method (such as roll packaging or sheet packaging) based on customer requirements and label features.

Precautions: During the packaging process, pay attention to protect the label to avoid damage during storage and transportation.

6. Laminating

Function: Cover the surface of the label with a transparent film to increase the gloss, wear resistance and water resistance of the label.

Process: Use the laminating machine to glue the film and label together, and finish the laminating film after drying and other processes.

Note: When laminating, the appropriate film material and laminating process should be selected to ensure good laminating effect.

7. Glazing

Function: Coat the label surface with a layer of gloss oil to increase the gloss, anti-fouling and moisture-proof of the label.

Process: Use the glazing machine to evenly apply the glazing oil on the label surface, and finish the glazing after drying.

Note: When glazing, the thickness and uniformity of the glazing oil should be controlled to avoid stripe or adhesion problems.

8. Gold stamping

Function: Hot stamping metal foil or pigment foil on the surface of the label to increase the beauty and grade of the label.

Process: The metal foil or pigment foil is heated and imprinted on the label surface using a gold stamping machine.

Precautions: When bronzing, make a bronzing board according to the graphics, and strictly control the temperature and time of bronzing to ensure good bronzing effect.

In summary, self-adhesive coated paper needs a series of post-processing processes after printing to improve its quality and meet specific needs. These processes include die-cutting, waste disposal, slitting, inspection, packaging, laminating, glazing and gilding. In actual operation, the appropriate post-processing process needs to be selected according to the specific requirements of the label and production conditions.