The two 'bamboo' fabrics you can source are made by very different chemistry, sell at very different price points, and carry the same legal labeling duty. Here is how to spec and label each one correctly.
Both start with bamboo pulp, but the resemblance ends there. Bamboo lyocell is spun in a closed-loop system using a non-toxic solvent (NMMO) that is recovered and reused, while bamboo viscose/rayon is made by a conventional multi-stage process using caustic soda and carbon disulfide. Lyocell is more sustainable, stronger, and pricier; viscose is softer to the touch and cheaper. Both must be labeled as rayon in the US.
Why 'bamboo' is not the fiber name
This is the single most important thing a B2B buyer needs to understand before writing a spec. When bamboo is chopped, mechanically softened, and spun without dissolving it, you get a coarse, linen-like 'bamboo linen' that is genuinely bamboo fiber. Almost nobody sells that as bedding. The soft, silky 'bamboo' sheets on the market are made by dissolving bamboo cellulose in chemicals and regenerating it into a new filament. Once cellulose is dissolved and regenerated, the resulting fiber is rayon, no matter which plant supplied the pulp.
The US Federal Trade Commission (FTC) has enforced this repeatedly. Under the Textile Fiber Products Identification Act and 16 CFR Part 303, a regenerated-cellulose textile made from bamboo pulp must be labeled and advertised as 'rayon' or 'rayon made from bamboo' (viscose is an accepted synonym for rayon on labels). Calling it simply 'bamboo,' or claiming it keeps bamboo's natural antimicrobial or eco properties, is treated as deceptive.
How bamboo lyocell is made (closed-loop)
Lyocell uses a direct-dissolve process. Bamboo pulp is dissolved in N-methylmorpholine N-oxide (NMMO), an organic solvent, then extruded into a water bath where the cellulose regenerates as fiber. The spent solvent and water are captured and distilled, and roughly 99% of the NMMO is recovered and cycled back into production. There is no xanthation step and no carbon disulfide, so worker exposure and effluent are dramatically lower. This closed-loop chemistry is why lyocell is the sustainability leader among regenerated-cellulose fibers.
One brand note buyers ask about constantly: TENCEL is a registered brand of lyocell (and modal) fibers made by Lenzing AG of Austria. All TENCEL Lyocell is lyocell, but not all lyocell is TENCEL. Generic mill-run bamboo lyocell uses the same NMMO closed-loop route without the trademark. Only use the TENCEL name on a product if the fiber is genuinely Lenzing-branded and you are authorized; otherwise call it 'lyocell' or 'lyocell made from bamboo.'
How bamboo viscose/rayon is made (conventional)
Viscose rayon is the older, cheaper route. Bamboo pulp is steeped in sodium hydroxide (caustic soda), aged, then treated with carbon disulfide to form cellulose xanthate, dissolved into a honey-like 'viscose' solution, and finally extruded through spinnerets into an acid bath that regenerates the cellulose. It is a multi-day, multi-chemical process. Unless the mill runs solvent recovery and closed-loop effluent treatment, carbon disulfide and sulfur byproducts pose real worker-safety and wastewater concerns. Most commodity 'bamboo' bedding is viscose rayon.
| Bamboo lyocell | Bamboo viscose/rayon | |
|---|---|---|
| Process | Direct-dissolve in NMMO solvent, single closed-loop step | Multi-stage: caustic soda + carbon disulfide (xanthation) |
| Sustainability | Closed-loop; ~99% solvent recovered; low effluent | Higher chemical load; needs strong recovery to be clean |
| Feel | Smooth, crisp, dry-cool, silky drape | Very soft, slippery, fluid drape |
| Durability | Stronger fiber; better wet strength and pilling resistance | Weaker, especially when wet; pills more with washing |
| Cost | Higher fiber and finished-goods cost | Lower cost; commodity price point |
| US FTC labeling | Label as 'lyocell' (or 'lyocell made from bamboo') | Label as 'rayon' or 'rayon made from bamboo' (not 'bamboo') |
Feel, durability, and cost for your buyers
Positioning matters when you brief a mill. Lyocell reads as premium: it has a smooth, dry, cool hand with a crisp drape that hotels and better-retail brands like, plus higher wet strength and better resistance to pilling over repeated industrial laundering. Viscose reads as ultra-soft and fluid, which sells beautifully at retail on touch alone, but it is weaker (especially wet) and pills faster. Cost tracks quality: lyocell fiber and finished goods sit well above commodity viscose, so match the fiber to the channel and the laundry cycle.
How to label bamboo bedding correctly
- Never label regenerated-cellulose bedding as just 'bamboo.' Use the generic fiber name: 'rayon' / 'viscose' or 'lyocell.'
- For viscose-route fabric, 'rayon made from bamboo' (or 'viscose made from bamboo') is the FTC-accepted phrasing.
- For lyocell-route fabric, 'lyocell' or 'lyocell made from bamboo' is correct.
- Do not carry over 'antimicrobial,' 'antibacterial,' or 'eco' claims from the raw bamboo plant unless the finished fiber is tested and substantiated; the FTC has found those plant properties do not survive the viscose process.
- Use the TENCEL name only for genuine Lenzing-branded fiber you are authorized to reference, and never imply endorsement.
- Keep fiber content, country of origin, and care on the permanent label per each destination market's textile rules.
If cellulose is dissolved and regenerated into a new fiber, it is rayon, whatever plant supplied the pulp. Bamboo is the source, not the fiber name.
Which should you source?
Choose bamboo lyocell when you are selling on sustainability, durability, and a premium cool-touch story, or supplying hospitality that runs hard laundry cycles. Choose bamboo viscose when your channel is price-driven and buyers want maximum initial softness. Whichever you pick, get OEKO-TEX Standard 100 certification (tested for harmful substances at the article level) and lock the correct fiber labeling into your artwork before the first production run, not after.
BeddingTextilePro supplies Lyocell/Tencel bedding factory-direct from Nantong, China with correct rayon/lyocell labeling built into every spec, 100-set MOQ, full OEM/ODM, and OEKO-TEX Standard 100 certified fabric.
Frequently asked questions
- Can I just label my bamboo sheets 'bamboo' for the US market?
- No. The US FTC requires regenerated-cellulose fabric made from bamboo pulp to be labeled by its generic fiber name, 'rayon' (or 'viscose') for the conventional process, or 'lyocell' for the closed-loop process. 'Rayon made from bamboo' is acceptable; 'bamboo' alone is treated as deceptive.
- Is bamboo lyocell the same as TENCEL?
- Not exactly. TENCEL is a registered brand of lyocell fibers made by Lenzing AG. All TENCEL Lyocell is lyocell, but generic bamboo lyocell from other mills uses the same NMMO closed-loop process without the trademark. Only use the TENCEL name for authentic Lenzing-branded fiber you are authorized to name.
- Which is more sustainable, bamboo lyocell or bamboo viscose?
- Bamboo lyocell. Its closed-loop process recovers about 99% of the non-toxic NMMO solvent and avoids carbon disulfide, so effluent and worker exposure are far lower. Bamboo viscose can be produced responsibly only if the mill runs strong chemical recovery and wastewater treatment.
- Which fabric is more durable for hotel laundering?
- Bamboo lyocell. It has higher wet strength and better resistance to pilling under repeated industrial washing, which is why it suits hospitality and better-retail programs. Viscose is softer initially but weaker when wet and pills faster over time.
Sources & references
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