Lamination - to protect documents

Important documents and documents made of paper or cardboard require special protection, as otherwise signs of use such as kinks, cracks or stains quickly become visible. Especially when documents are in regular use, lamination is a good way to protect them from damage and keep them in mint condition. Laminating not only ensures reliable protection, but also optical refinement.

What does lamination mean?

Lamination is the process by which paper or another carrier material and a protective film, the so-called laminate, are joined together. The lamination requires a laminator and a special laminating film.

  • Laminating ensures permanent finishing & sealing
  • Protection against water and abrasion
Laminiertes Dokument geschützt vom Wasser

Hot lamination

Especially the hot lamination is used. The film is heated in the laminator, creating a bond between the document and the film. Depending on the thickness of the laminating film, it is heated in the device between 80 ° C and 120 ° C.

Advantages of hot lamination

  • Depending on the thickness of the film results in a high strength
  • Washable
  • Documents become forgery-proof


Cold lamination

Cold lamination uses a laminating film coated with adhesive that sticks at normal temperatures. (This foil is not suitable for hot lamination!). The film, which works like a double-sided tape, is pressure-bonded to the paper and works without a laminator.

Compared to hot lamination, the glued-on foil can peel off more easily and is therefore more of a short-term solution for particularly heat-sensitive documents. Most materials like paper or photos are heat stable, but some documents may not be heated. (for example, receipts, tickets or ultrasound pictures). Cold lamination is also useful if you later want to separate the document from the film without residue. However, there is no 100% protection guarantee.

Advantages of cold lamination

  • There is no need for a laminator
  • One-sided lamination possible
  • The film is easier to separate from the material

What can be laminated?

Lamination is used in many areas. Many important documents are already laminated from the beginning (badges) to provide increased protection against counterfeiting and to protect them. Also, documents that are in regular use or are to be made particularly durable, are laminated.

Laminators are also useful for do-it-yourself projects. Even tinkered photos, cards or individual crafting components are laminated particularly stable and last longer.

In particular, documents that are particularly important and need to be stored for a long time should be laminated (e.g., certificates). It is important to note that the method is not suitable for all documents. One such exception is tickets that lose their validity after lamination.

These include:

  • Business Cards
  • papers
  • Awards
  • poster
  • flyer
  • Advertising Materials
  • Price lists
  • warnings
  • checklists
  • work instructions

Tips for proper lamination with a hot laminator

To laminate paper and other documents, you need a laminator and laminating film. Laminating films are available in different sizes and thicknesses, so it is important to make sure the laminating film is compatible with the device.

Warm up the device

For hot lamination, the device is first warmed up. For best results, it is recommended that you do not begin lamination until the unit is fully preheated. In addition, you do not have to wait long, because the heated silicone rollers have a short heat-up time, so you can start almost directly.

It is important to choose the right temperature for the film. Too cold lamination will cause the film to not adhere properly. On the other hand, laminating too hot can even damage your documents. If you need to laminate cold, you can simply use the laminators Dahle 70104 and Dahle 70103, because the devices have both functions integrated.

Laminiergerät mit Kaltfunktion und Warmfunktion

Prepare the laminating foil

While your device is warming up, you prepare and align the document and the pouch. Make sure that the paper is centered and has a margin of at least 4 mm at the edge. This area is important so that there is enough room for merging. Before laminating, check that the document and the film are free of lint, hair and other contaminants. If your laminating film is much larger than the document being laminated, that's no problem. Excess film then cuts off. It is also possible to laminate several documents in one film. For example, side by side postcards or business cards.

Lamination with the hot laminator

Once the device has reached its optimum temperature, you give the document to be laminated with the closed film opening in the device. Make sure that the film is pulled in straight. Lamination then takes place automatically as the heated rollers slowly guide the film and document through the device.

Further processing of laminated documents

Immediately after lamination, the film is still very hot and easy to bend, so you should wait a few minutes. Then you can cut the laminated documents into the right size.

Laminators from Dahle

Laminators are efficient helpers to protect documents permanently. Especially practical are laminators that are both hot and cold laminating. This makes you flexible and does not require multiple devices. Before you buy, think about the purposes for which you need your laminator and then decide which model suits you best.

There are the appropriate device for the different document sizes, e.g. A3 laminators and A4 laminators as well as the appropriate laminating film sizes. You can also laminate smaller formats with A4 devices and then trim them.


The advantages of lamination at a glance:

  • Protection against liquids, dirt and cracks
  • Increase in strength (depending on the film thickness)
  • Increasing the service life
  • Increase the color quality
  • Optically higher quality effect
  • Protection against counterfeiting