How long do thermal photo prints last?

How long do thermal prints last?

It depends on the paper and how you keep it. Koehler, a thermal paper maker, says prints on its papers stay readable for 10 years when stored like documents: 18–25°C, 40–60% humidity and out of the light.

Long-life grades exist too, and Koehler rates its Blue4est paper at 35 years. Everyday thermal paper is far more common, so treat a thermal photo as a keepsake that rewards careful storage rather than an archival print.

What makes thermal prints fade?

Thermal paper darkens where the printer heats it, so heat after printing works against the image. Koehler lists long spells above 40°C, damp storage, direct sunlight, and contact with oils, alcohol or the plasticisers in PVC film.

• A car dashboard or sunny windowsill, where heat and light combine
• Clear PVC sleeves, some magnetic albums and self-adhesive tape
• Hand cream, sanitiser and sweaty fingers
• A damp drawer, bathroom shelf or storeroom

Jujo Thermal, another paper maker, adds that fluorescent light fades prints over long periods, and that scratching or pressure can mark the surface.

How do you keep thermal photos looking good?

Keep prints somewhere cool, dry and dark, the way you would store important papers. Jujo recommends sleeves made of polyester or polyolefins such as polypropylene, and keeping printed faces from rubbing against each other.

• Use polyester or polypropylene photo sleeves, not PVC
• Hold prints with photo corners or a starch or PVA glue instead of tape
• Store albums flat and away from windows
• Handle prints by the edges with clean, dry hands

Can you put them in an album, frame or phone case?

Yes. A thermal photo album or scrapbook works well when its pockets are polypropylene or polyester. Avoid self-adhesive magnetic albums, whose plastic film and glue can fade the image.

A frame protects a print from hands and dust. Hang it out of direct sunlight, and away from lamps or other sources of heat.

Many guests slip a print behind a clear phone case. It's a lovely way to carry one around, but the phone's warmth and the case plastic can fade it sooner. If a print really matters to you, move it to an album after a while.

Keeping the photo when the print changes

At a Monotone receipt photobooth, guests take photos on their own phones and collect a black-and-white print. Every photo and optional message is also saved in the host's digital guestbook, so the picture stays even as the paper ages.

The print is the keepsake guests hold on the night, and the guestbook is the record the host keeps. If you want prints on photo paper, a conventional booth may suit you better. Photo booth formats compared sets out the choices.

Deciding between print types? Thermal prints vs Instax vs Polaroid compares look, size, speed and cost per photo.