How does lamination come about

What is laminating?

Laminating is the process of joining paper or carrier material and film.

Cold lamination:

With cold lamination, the film is coated with an adhesive that has normal adhesive properties at all temperatures. In the connection between paper and film, the adhesive acts like a double-sided adhesive tape. Depending on the size of the laminated prints, lamination can be done without a laminating or laminating machine.


The film is fixed on one side and slowly stuck onto the picture by spreading it evenly over the print.


Advantage:

  • no machines are required for lamination

  • one-sided lamination possible

Disadvantage:

  • the laminated product does not become stronger

  • the edge peels off faster

  • not waterproof


Hot lamination:

Before the laminate comes into contact with the paper, the laminate is heated to between 80 ° C and 120 ° C, depending on the laminate thickness and laminating machine. The heating creates an irreversible bond between the paper and the laminate. There are a few digital printing machines with silicone-containing inks that allow the laminate to peel off.


Advantage:

  • waterproof with foil edge

  • high strength (depending on the laminate thickness)

  • washable

  • forgery-proof document


Single sided lamination:

The laminating film is only attached to one side of the paper. This is only possible with cold lamination. In the case of a hot laminate, the carrier material would roll. The one-sided lamination is used as a protective laminate - conditionally, this can also be a UV protective film.

Double-sided lamination:

The paper is pulled on from both sides with foil. Hot laminate is mainly used for this. The document is thus protected from both sides. The lamination is possible with a foil border or borderless.


Further processing options:

  • the laminated printed matter can have round or pointed corners

  • The laminated prints can be punched in large quantities with special drills

  • eyelets are also possible

  • special bracing for hanging up the laminated posters

Other trade names known on the market that can vary in type and function are, for example: Printsafe, Papersafe and Paperguard.


Material assembly:


Laminating rolls:


The laminating rolls are used on semi-automatic laminating machines or on fully automatic laminating lines. Large editions are processed fully automatically - in sizes from DIN A6 to DIN A1. The laminating rolls are available for posters up to a width of 140 cm (135 cm max. Paper format).


Laminating bags:


This option offers inexpensive lamination for small runs. The two foils are connected to one another approx. 1-2 mm on one side. The film is unfolded and the document is placed in the middle. After folding, the laminate film is let through a table laminator.