What silk rugs are.
Hereke. Town near Istanbul, founded as an Ottoman imperial workshop in 1843. Pure silk rugs with knot densities reaching 1,500 knots per square inch, sometimes signed in a small calligraphic cartouche near the corner. The sheen is unmistakable — the rug appears to change colour as you walk around it because the silk catches and releases light directionally.
Qum (or Qom). City in central Iran. Silk Persians, often calligraphic, garden, or prayer designs, woven from the late twentieth century onward as the modern successor to the great Persian silk traditions. Knot density routinely exceeds 1,000 per square inch. The palette tends to ivory, cream, navy, terracotta — restrained, intricate, signed.
Persian silk — the broader category. Isfahan with wool-on-silk-foundation pieces. Tabriz workshop silks. Kashan silks. Each city's tradition has its own drawing, palette, and knot structure. Antique Chinese silk, finally, is its own world — nineteenth-century imperial pieces with dragon, garden, and medallion designs, woven on silk warps and wefts, with a finer pile and a different lustre than the Persian and Turkish silks of the same era. Each of these belongs to a tradition that requires its own calibration on the wash floor.
Why silk is the most delicate fiber.
A silk filament is between three and five microns thick — roughly a tenth the diameter of a human hair. Two thousand filaments are reeled together to form a single thread, which is then plied with one or more other threads to make the yarn that becomes a knot in the rug. The strength of silk by weight is astonishing — on a tensile-strength comparison, silk outperforms steel of the same diameter — but its tolerance for chemical, thermal, and mechanical stress is the lowest of any fiber used in rug-making.
Heat above sixty degrees Celsius starts to flatten the natural lustre. Alkaline soap (the chemistry of most household detergents) breaks down sericin, the natural gum that gives silk its tensile properties, leaving the fiber brittle. Ultraviolet light over time causes yellowing and fiber degradation; this is the slow damage that accumulates in any silk rug placed in direct sun. And mechanical agitation — a rotary brush, a powered vacuum head, a vigorous rub during a spill — pulls individual filaments out of the foundation, causing the surface lustre to break up into a flat, fuzzy patch.
Every step of caring for a silk rug is calibrated around these tolerances. Cool water, neutral pH soap, soft brushes by hand, controlled drying away from direct light. The discipline is the protection.
Cleaning: by hand, alone, never with wool.
Every silk rug we wash is washed individually on a dedicated section of the wash floor, in water reserved for that piece alone. Never alongside wool, never in a batch with other silks, never in the same bath as a different rug. The reason is dye chemistry — silk dyes can release subtly under contact with cleaning water, and a co-bath risks colour migration onto a neighbouring piece. The discipline is to wash each silk by itself.
The protocol starts with the dye-stability test on a discreet fringe thread, every colour on the rug. Where there is bleed risk, we adjust the wash plan — cooler water, a milder neutral-pH soap, shorter contact time, longer drying. The wash itself is done with soft brushes by hand, in the direction of the pile, with frequent rinses. Powered tools never touch a silk rug at our atelier. The rinse runs until the run-off is clear and the soap is fully gone — residue is what dulls the lustre over time, and the slow rinse is what protects it.
Drying is flat, on slatted frames, in a temperature-controlled room away from direct light. Never tumbled, never hung. Drying time on a silk rug runs three to seven days depending on the weight, the season, and the room conditions — we calibrate it to the piece, not to a schedule. Once dry, the rug is hand-groomed, inspected under raking light, and signed off by the master artisan before it goes back into wrap.
Storage: cool, dry, dark, rolled.
Silk rugs are stored rolled, never folded. A fold creates a crease that the silk fiber will not fully recover — the lustre breaks along the fold line and you see it across the room for the life of the rug. Roll with the pile facing inward, around an acid-free cardboard tube or a clean unstained wooden rod. The roll should be loose enough to slide a hand inside, never compressed.
Wrap the rolled rug in acid-free archival paper or in unbleached cotton muslin, never plastic. Plastic traps humidity and breeds mildew, the fastest way to destroy a silk rug in storage. The wrapped roll goes onto a shelf or rack off the floor — never on concrete, which leaches cold and moisture in unfinished basements — in a climate-controlled space at sixty to seventy degrees Fahrenheit and forty to sixty percent humidity. A dehumidifier in a damp summer climate is worth its cost ten times over for any storage room holding a silk rug.
Inspect twice a year. Unwrap, lay flat for an afternoon, check the underside for moth activity, refold the muslin if it has slipped, and rewrap. Silk in storage is not maintenance-free — it is just maintenance-light. Done as a discipline, a Hereke wrapped properly in 1990 looks the same in 2026 as the day it went in.
Light damage and protection.
Direct sunlight is the slow killer of silk. Ultraviolet light degrades the fiber and shifts the dye chemistry; over years, an unprotected silk in a sunny room fades to a chalky version of itself. The fade is not uniform — the strip closest to the window goes first, then the surrounding area, leaving a visible line that no wash can correct. Colour restoration on a sun-faded silk is one of the hardest crafts in the field, and even the best work cannot fully restore what UV has taken.
The prevention is simple. UV-filtering window film on south- and west-facing windows in any room with a silk rug. Sheer drapes drawn during the brightest hours. Rotation every six months so that any unavoidable light exposure is distributed across the rug rather than concentrated. And for the most valuable pieces — a museum-quality antique silk, a signed Hereke — consider a display position on a wall under directional lighting, or in a low-light room rather than a sunlit one.
Indoor lighting matters less, but it is not nothing. Halogen bulbs at close range emit UV; LED lighting is the safer choice. Track lighting directly above a silk rug should be diffused, not focused. The discipline accumulates — small protections over many years are what keep a silk looking the way it did when it was woven.
When to call the atelier.
Any spill on a silk rug needs same-week pickup. Blot immediately with a clean white cloth, change the cloth as it absorbs, do not rub, do not use any home stain remover. The longer a liquid sits on silk, the more dye migration accumulates. We schedule emergency silk pickups within forty-eight hours.
Annual hand-dusting and inspection is worth the visit for any silk rug of significant value — the master artisan checks for moth activity, dye stability, foundation integrity, and surface dust accumulation, and the rug is professionally hand-dusted at the inspection table. A full hand-wash is recommended every three to five years for residential silk rugs, more often where pets, children, or dining-room placement increase the soil load.
And any visible loss — a dulled patch where the lustre has broken up, a fringe that has started to unravel, a fade line, a pet stain that has not lifted — should come to the bench. Restoration on silk is one of the hardest crafts in the field, but it is one we do, by hand, in our atelier, for the pieces that warrant it.
