Cleaning and caring for photocards without damage

What damages a card

Fingers are the first cause. Skin leaves sebum, a greasy film invisible at the time, which attracts dust and sets the marks over the following weeks. On a gloss or holographic surface, the print becomes visible in raking light and never fully lifts again. A card handled unprotected for a year carries the memory of every hand that held it, including the hands that felt clean when they picked it up.

The other causes work more slowly, but their effects are more permanent. Direct light fades the print, reds and yellows first. Damp warps the board and can stick two cards together. Heat softens the varnish and deforms the card. Finally, soft plastics of the PVC type release plasticisers that migrate into the ink: after a few years the card stays stuck to its sleeve and the image comes away with it.

• Sebum: marks set over time, above all on gloss surfaces.
• Light: gradual fading, and it is irreversible.
• Damp: warped board, cards stuck to each other.
• Heat: softened varnish, deformed card.
• PVC: plasticisers that migrate into the ink.

Handling a card

The rule comes down to three habits. Hands washed and completely dry, with no cream and no hand gel, whose residual alcohol attacks the varnish. A grip by the edges, between thumb and forefinger, never flat on the printed face. And a clean, dry work surface to set the card on, rather than a bed, a rug or a kitchen table, where dust, crumbs and moisture collect. Those three habits alone prevent most marks.

The riskiest moment is going into a protection, or coming out of one. A card slid in at an angle scratches along its whole length, and a card pulled out too fast bends at the corner. Do it calmly, card flat, without forcing. If the card catches, the protection is the wrong size: change the protection rather than push harder, because the board always gives way before the plastic does.

Dry cleaning

Cleaning a photocard is done dry, with no exceptions. A clean, dry microfibre cloth, wiped without pressure and in a single direction, lifts dust and most fresh marks. For a stubborn speck, a blower bulb or a soft lens brush does the job without contact. Nothing else is needed, and above all nothing else is safe for a print that has no protective coat designed to take that kind of treatment.

What should never be used fits in a short list: water, alcohol, wipes, household cleaner, eraser, adhesive tape. Water warps the board and makes the ink bleed. Alcohol dissolves the varnish and leaves a permanent matte patch. A wipe combines both effects. On a holographic card the rule is stricter still: never rub, at all, because the effect layer scratches under the slightest pressure and the damage shows in any light.

• Dry microfibre cloth, no pressure, one direction only.
• Blower bulb or soft brush for dust.
• Never water, alcohol, wipes or household cleaner.
• On a holographic card: blow the dust off, do not rub.

Warped, bent or stuck cards

A card slightly warped by damp can often be stabilised. Put it in a clean sleeve, then flat between two rigid surfaces, under moderate and even weight, in a dry room, for several days. The board returns to shape slowly. Forcing it, ironing it or holding it near a heat source does the opposite: a sharp, permanent crease, exactly where the pressure was applied, and the card is then worse off than before.

Two cards stuck together by damp are a more delicate case. Do not pull: the printed layer would stay on the other card. Let the pair dry for several days somewhere dry, then try a very slow separation starting from one corner. If it resists, stop. A marked but intact card holds more value than a card with a third of its surface torn off, and tearing cannot be undone by any means.

One limit has to be accepted. A crease, a deep scratch, a crushed corner and fading are permanent. No method erases them, and the known attempts make the card worse rather than better. The right move is to stabilise: put the card in a sleeve, store it flat, away from light, and stop handling it. That is the only action that keeps the fault from spreading further, and it costs nothing but the decision to leave the card alone.

Where to keep a collection

A collection keeps best in a dry room, at a stable temperature, out of direct sun. Three places are worth ruling out: the windowsill, where light and heat add up; the bathroom, where humidity rises with every shower; the cellar or the loft, where temperature swings hard from one season to the next. A closed shelf in an ordinary living room does the job perfectly well, and costs nothing to set up.

In a humid climate, a desiccant sachet placed in the box or in the binder limits warping of the board. Replace it once it is saturated. Check the materials that touch the cards as well: acid-free polypropylene is the standard for sleeves and pages. A sleeve that smells strongly of plastic straight out of its packaging is a bad sign and has no business sitting against a printed surface for months on end.

• Dry room, stable temperature, out of direct sun.
• Avoid: windowsill, bathroom, cellar, loft.
• Acid-free polypropylene for anything touching the card.
• Strong plastic smell: do not use it.

Carrying, mailing and storage

A card carried around travels badly. In a pocket, a wallet or a phone case, it takes body heat, moisture and rubbing all at once. If you want to take a card with you, put it in a sleeve inside a rigid holder, flat, in an inside pocket of a bag. A card kept on you through a summer day comes back marked, and the fault sometimes only shows once you are back in daylight.

For a postal shipment, the card has to be immobile and protected on both faces. Sleeve, rigid holder, then two stiffening boards on either side, held together without the tape ever touching the card or the sleeve. A padded envelope on its own is not enough: it absorbs shocks but does not prevent a crease. A card travels as badly as the parcel around it is soft, and a crease picked up in transit can never be undone.

For the choice of protections themselves, sleeve, toploader or binder, and for organising a collection as it grows, the pocabase photocard storage guide covers the question in detail. This guide stops at care: what damages, what cleans, what can be stabilised. The two complement each other, and one does not replace the other: a well-stored card that is badly handled still gets damaged, and a well-handled card still fades if it waits in the sun.

Frequently asked questions

On pocabase

• Photocards — Red Velvet, Chill Kill
• Photocards — ITZY, GOLD
• Photocards — NCT, WALK
• Photocards — P1Harmony, SAD SONG
• Red Velvet
• P1Harmony