Bamboo Silk Rugs

A bamboo silk rug is not silk. The fiber the rug trade calls bamboo silk is bamboo viscose — cellulose dissolved out of bamboo stalks and spun back into a smooth filament, which puts it in the rayon family. It is soft, cool to the touch and high in sheen, and it behaves like viscose rather than silk or wool.

It is also not woven from bamboo in any form you would recognize on the plant. The name describes an origin and a look, not a material you could find in a stalk. What follows is what the fiber actually is, how it came by the name, how it behaves under a spilled glass and under a chair leg, and which rooms it belongs in.

What bamboo silk actually is

It is viscose rayon made from bamboo pulp.

The route is the one the Turkish workshops describe in shorthand as soaking the stalk and turning it to pulp. In full: mature stalks are chipped and cooked in a caustic solution until the cellulose separates from the woody lignin around it. The pulp is aged, treated with carbon disulfide, and dissolved into a thick amber liquid — the viscose the fiber is named for. That liquid is forced through a spinneret into an acid bath, where it hardens back into cellulose as a continuous filament. The filament is washed, drawn, cut or left long, spun into yarn, dyed and woven.

Two things follow. The first is that none of the plant's own structure survives the process. The finished filament is regenerated cellulose, and in a woven rug it is not distinguishable from viscose made out of beech, eucalyptus or cotton waste. The second is that the labeling rules know this: in the United States the Federal Trade Commission requires textiles made by the viscose process to be described as rayon or viscose rather than as bamboo, and it has acted against retailers who called rayon goods bamboo.

Bamboo fiber in the literal sense does exist — the stalk broken down mechanically and combed like flax, sold in clothing as bamboo linen. It is coarse and stiff and almost never appears in floor rugs. A bamboo mat, split cane laid side by side and bound at the edges, is a third thing again and shares nothing with either.

One qualification on the plant, since it is usually the selling point. Bamboo grows fast and needs little land or irrigation. The conversion is the opposite: carbon disulfide and caustic soda do the work, and how much of them a mill recovers is what separates one bamboo viscose from another. The raw material and the fiber are two separate questions and deserve two separate answers.

Why it looks like silk, and where the resemblance ends

The sheen is real, and it comes from the same place silk's does.

Both are extruded filaments: smooth, round in section, without the overlapping scales that cover a wool fiber. A surface like that reflects light in one direction rather than scattering it, so a bamboo viscose rug changes value as you walk around it, pale from one end of the room and deep from the other. Wool does the opposite, because the scales and the crimp along each fiber break the light up.

The resemblance ends at strength. Silk is the strongest natural fiber by weight and loses little of it wet. Viscose is weak by comparison and gives up roughly half its strength when it is saturated, which is why moisture matters so much here. Wool springs back from being crushed because the crimp acts as a spring. Bamboo viscose has no crimp, so a path worn across it flattens and stays flat. Compare the fiber against a pure silk rug in person if you can — the difference in weight alone settles the question.

What water does to it

Water is the single thing that decides how long a bamboo silk rug lasts.

The fiber is absorbent and takes a spill in fast. As the wet area dries it wicks upward and carries dissolved soil and cellulose breakdown products to the tips of the pile, where they dry as a yellow-brown ring at the edge of the stain. Rug cleaners call it browning, and the Turkish care notes describe the same effect as yellowing after a spill. It is the reason the advice is always to dry the spot quickly rather than thoroughly.

Rubbing is worse than the spill itself. Wet viscose filaments split lengthwise under friction, and a split fiber scatters light instead of reflecting it, so the patch reads as a dull white mark that no cleaning brings back. Blot straight down with a white cloth, keep the water to the smallest area possible, and move air across it so it dries in hours rather than overnight.

Bamboo viscose, wool and real silk compared

	Bamboo viscose ("bamboo silk")	Wool	Real silk
What the fiber is	Regenerated cellulose from bamboo pulp; rayon family	Animal hair, scaled and crimped	Protein filament from the silkworm cocoon
Sheen	High, cool, directional	Low, matte, warm	High, warm, shifts with the angle of light
Feel underfoot	Cool and slippery-soft, low pile	Springy, warm, resilient	Cool, dense, very fine
Wet strength	Loses about half its strength saturated	Holds up; wool is washed routinely	Holds up well
Recovery from crushing	Poor — traffic paths stay flat	Good	Moderate
Where it belongs	Bedrooms, formal sitting rooms, low traffic	Anywhere, including daily-use rooms	Rooms that are looked at more than walked on
Cleaning	Dry methods; professional washing only	Vacuum and professional wash every 12–18 months	Professional only

For the winter-and-daily-use half of that table, see wool rugs; for how real silk is identified, the silk rug guide sets out the tests, including the old one — a strand of real silk burns to a brittle ash and smells of burnt hair, while viscose smells of burning paper and leaves a soft gray ash.

Where a bamboo silk rug works, and where it does not

Rooms that are looked at more than they are walked through.

• Bedrooms. Bare feet, light traffic, and a cool surface that suits spring and summer.
• Formal sitting rooms. Traffic parts around a coffee table rather than crossing the field, and the sheen does its work under a low light.
• Layered. A smaller bamboo viscose piece over a flat weave or a larger wool rug keeps it out of the walking line.
• Not entries, kitchens, corridors or under a dining table. Grit, spills and chair legs are the three things the fiber handles worst.
• Not over underfloor heating. Halıcızade advises against it, and sustained heat from below is hard on the fiber.

What to check before you buy

Ask for the fiber content in writing, because the trade names all point at the same fiber.

Bamboo silk, art silk, artificial silk and viscose are the same material under four labels. Beyond the name, three things determine what you are actually getting. The pile may be bamboo viscose throughout, or bamboo viscose only in the highlights of the pattern with acrylic or another synthetic carrying the ground — a common construction, and one the workshops use deliberately, since the added synthetic takes wear better than the viscose does. The foundation is usually cotton or polyester regardless. And the weave itself is nearly always machine work: handwoven bamboo viscose exists and has become more common, but it is the exception, and it needs a lighter hand in cleaning than a machine-woven rug of the same fiber. If the ground yarn turns out to be acrylic, read what an acrylic rug is before comparing prices.

Price follows the same logic it does everywhere in weaving: yarn quality, how much yarn the pile carries, size, and how much detail the pattern demands of the loom. A plain field costs less to make than a dense pattern, which is why runners in this fiber sit at the lower end.

Living with one

Vacuum on low suction with the beater bar off, moving slowly and in the direction the pile lies. Wipe only occasionally, with a cloth wrung out until it is barely damp, since a wet cloth on an absorbent pile is what produces the yellowing described above. Treat a stain with a rug shampoo rather than anything containing bleach, working in one direction without pressing down. A bamboo viscose rug does not go in a washing machine, and it does not shed loose fiber the way a new wool pile does. When it needs more than surface cleaning, it goes to a professional rug washer.

Frequently asked questions

Is bamboo silk real silk?

No. Bamboo silk is a trade name for bamboo viscose, a regenerated cellulose fiber in the rayon family, made from bamboo pulp rather than from a silkworm cocoon. In the United States the Federal Trade Commission requires such textiles to be labeled rayon or viscose.

What is a bamboo silk rug made of?

Bamboo stalks are chipped and cooked in a caustic solution, treated with carbon disulfide, dissolved into a viscose liquid and forced through a spinneret into an acid bath, where the cellulose hardens back into filament. That filament is spun into yarn, dyed and woven into the pile.

Is bamboo viscose different from ordinary viscose?

Only in where the cellulose came from. Once the pulp has been dissolved and regenerated into filament, viscose from bamboo behaves the same as viscose made from beech, eucalyptus or cotton waste, and the two cannot be told apart in a finished rug.

Can a bamboo silk rug get wet?

It should not stay wet. The fiber loses roughly half its strength when saturated, and as a wet patch dries it carries soil to the pile tips and leaves a yellow-brown ring. Blot straight down, never rub, and dry the area quickly with moving air.

Where should a bamboo silk rug not be used?

Entrances, kitchens, corridors, bathrooms and under dining tables. Grit, standing water and chair legs are the three conditions the fiber handles worst, and it should also be kept off floors with underfloor heating, which is hard on it over time.

Do bamboo silk rugs shed?

They do not shed loose fiber the way a new wool rug does in its first months. The pile is short and the filament is continuous rather than a mass of short hairs, so the usual settling-in period of a wool rug does not apply.

Should I choose bamboo silk or wool?

Bamboo viscose for sheen, a cool surface and a room with light traffic, particularly in spring and summer. Wool for warmth, resilience and anywhere used daily. Wool tolerates washing and crushing that bamboo viscose does not, and it is the more forgiving fiber in a busy house.

Related collections: machine-woven rugs · silk rugs