Laminating is a very practical method for daily office work, teaching, and document storage. It not only makes documents more sturdy, waterproof, and stain-resistant, but also helps maintain clear colors and prevents fading for a long time.
So, what is the ideal temperature for laminating documents with film? Today, YIDU factory, with 32 years of experience in heat-sealing film production, will provide you with a detailed answer.
1. Laminating temperature is related to material structure.
The common laminating film structure is PET + EVA:
PET layer: provides protection and support;
EVA layer: melts and bonds the document when heated.
The melting point of the EVA adhesive layer is typically between 90℃ and 130℃. Too low a temperature will result in weak adhesion or air bubbles, while too high a temperature can easily cause the film surface to fog up, curl, or even deform.
Therefore, YIDU recommends: For ordinary office documents (80mic–100mic): Recommended temperature 100℃–110℃
For thick films or cards (125mic–150mic): Recommended temperature 110℃–130℃
For high-thickness protective films (175mic–250mic): Recommended temperature 120℃–140℃
2. Temperature and laminating machine speed must be coordinated.
Besides temperature, laminating speed is also crucial. Too high a speed will result in the EVA layer not fully melting before passing through the machine, leading to poor sealing or bubbling; too low a speed will cause yellowing or edge lifting due to prolonged heating.
YIDU recommends adjusting the machine speed according to different film thicknesses to ensure even heating and a strong seal.
3. Recommendations for selecting different thicknesses of laminating film.
Different document types can be fitted with different thicknesses of laminating film:
|
Document Type |
Recommended Thickness |
Suggested Temperature |
|
Regular Documents / Teaching Materials |
80mic–100mic |
100–110℃ |
|
ID Cards / Menus / Brochures |
125mic |
110–120℃ |
|
Posters / Photos / Certificates |
150mic |
120–130℃ |
|
Long-Term Archive Documents |
175mic–250mic |
125–140℃ |
Temperature is a key factor in the effectiveness of laminating film. By mastering the correct temperature range and choosing high-quality laminating film, you can achieve smooth, clear, and durable documents.
YIDU reminds you: Temperature should be adjusted flexibly depending on the thickness and intended use.
Want to learn more about laminating techniques? Contact YIDU factory now!
Contact information
Contact number: +8613923634841
WhatsApp：+8613923634841
Fax: 86-752-2612495
Email: film@gangyuefilm.com