# What is Tencel? Lyocell fabric explained Source: Snaza Journal, https://snaza.app/journal/what-is-tencel/ Publisher: Snaza Topic: Fabrics and patterns Published: 2026-09-26 Updated: 2026-09-26 What Tencel is, how lyocell is made from wood, whether it is natural, how it compares with cotton and modal, why Tencel sheets feel cool, and how to wash it. ## Quick answer > Tencel is a brand name from the Austrian company Lenzing, used mostly for its lyocell fiber and also for its modal. Lyocell is made by dissolving wood pulp in a solvent that is recovered and reused, then spinning it into smooth, strong fiber. Tencel is not cotton, polyester or plastic. It feels cool and silky, absorbs moisture well and drapes softly, but it wrinkles and can scuff if washed roughly. Tencel turns up on sheets that promise to sleep cool, on soft chambray shirts, on fluid wide trousers and even in jeans, usually with a small trademark symbol and a line about sustainable wood. It is easy to assume it is a special kind of cotton. What is Tencel, then? It is a brand, owned by Lenzing, for fibers made from wood cellulose, and most of the time it means lyocell, a close cousin of rayon made by a cleaner process. Knowing that one fact clears up most of the confusion. The rest comes down to how lyocell is made, why it behaves differently from Tencel modal and from cotton, and one habit in the wash that keeps its smooth surface from turning hazy. ## Tencel is a brand, lyocell is the fiber Tencel is a trademark, not a fiber type. Lenzing uses it for two different fibers, TENCEL Lyocell and TENCEL Modal, and a label or product page should tell you which one you are buying. When people talk about Tencel fabric without qualification they usually mean the lyocell. Other companies make lyocell too, and it may simply be labeled lyocell without the brand. In United States labeling law, lyocell is a recognized subcategory of rayon. The Federal Trade Commission allows the name lyocell for cellulose fiber that is dissolved and precipitated from an organic solvent without being chemically changed along the way. That is the key difference from ordinary viscose rayon, which goes through a chemical intermediate. The lyocell process was developed in the United States in the 1970s and commercialized under the Tencel name in the 1990s. ## What is Tencel fabric made of? Tencel lyocell is made of cellulose from wood pulp, typically from eucalyptus, beech, pine and other trees. Lenzing says its wood comes from certified or controlled sources, such as forests certified by FSC or PEFC. The pulp is dissolved directly in a solvent called N methylmorpholine N oxide, filtered, and pushed through fine holes into a bath where the cellulose sets as filaments. The fibers are washed, and the solvent is recovered and reused; Lenzing reports recovering more than 99.8 percent of it. This is why lyocell is often called a closed loop fiber, and why it avoids carbon disulfide, the toxic chemical at the center of criticism of the viscose process. It is not a perfect process, since it is energy intensive and the solvent itself is a manufactured chemical, but it is a real improvement in the factory. The resulting fiber is strong both dry and wet, smooth and even, which gives Tencel fabrics their cool, slippery hand and weighty drape. ## Is Tencel natural, cotton or polyester? Tencel is not cotton, and it is not polyester. It shares cotton's molecule, cellulose, but cotton is a seed fiber picked from a plant while lyocell is made by dissolving wood and reforming it. Polyester is a plastic made from petroleum, which Tencel is not. So Tencel is best described as semi synthetic or a manufactured cellulosic fiber: plant based, factory made. Is Tencel just rayon? In the broad sense, yes: it sits in the same regenerated cellulose family as [rayon](https://snaza.app/journal/what-is-rayon/), [viscose](https://snaza.app/journal/what-is-viscose/) and [modal](https://snaza.app/journal/what-is-modal-fabric/). In practice it behaves differently from ordinary viscose. It is much stronger when wet, shrinks less and holds up far better in the wash. Lenzing also has its lyocell certified as biodegradable and compostable, which fits a cellulose fiber, as long as it has not been blended with synthetics such as polyester or spandex. **The short version** 1. Tencel is a trademark, not a fiber type, and on its own it usually means lyocell rather than modal. 2. Lyocell is plant based but factory made, a regenerated cellulose fiber in the rayon family. 3. Its closed loop process recovers more than 99.8 percent of the solvent and avoids carbon disulfide. 4. It is neither cotton nor polyester, though it shares cotton's molecule, cellulose. ## Tencel vs cotton Is Tencel breathable? Yes, and it handles moisture especially well. Lyocell absorbs water readily and releases it, and it is often described as more absorbent than cotton, which helps it feel dry and cool against the skin. It is smoother than most cotton, drapes more heavily, holds dye with a soft luster and is gentle on sensitive skin. Lenzing also says its surface discourages the growth of odor causing bacteria, although your own washing habits matter more. Cotton is crisper, more familiar and generally more forgiving. It holds a shape better, takes hot washing when the label allows, and does not show scuffing the way lyocell can. Is Tencel as good as cotton? For drapey shirts, dresses, trousers and warm weather bedding, it is often more comfortable. For structured shirts, workwear and anything you want to throw in a hot wash, cotton remains the easier choice. Many fabrics blend the two to get softness with body. **Lyocell next to familiar fibers** | Fiber | Made from | How it behaves | | --- | --- | --- | | Tencel lyocell | Wood pulp dissolved directly in a recovered solvent | Strong wet, smooth, cool, drapes heavily | | Viscose rayon | Wood cellulose through a chemical intermediate | Weaker wet and shrinks more than lyocell | | Cotton | A seed fiber picked from the plant | Crisper, holds shape, takes hot washes | | Polyester | Plastic from petroleum | Not a cellulose fiber at all | ## Tencel lyocell vs Tencel modal Both are made by Lenzing from wood, but they are made differently and suit different clothes. TENCEL Modal is made mostly from beech by a modified viscose process that stretches the fiber for strength. It is extremely soft and fine and shows up most in underwear, loungewear and jersey T shirts, often with spandex. TENCEL Lyocell is made by the solvent process described above, and it appears in woven shirts, dresses, trousers, denim and sheets. In the hand, modal is softer and more fluid, while lyocell is a little denser, cooler and more substantial. Both breathe well and both shrink less than ordinary rayon. If you are shopping for bedding or a shirt, you will almost always be looking at lyocell; if you are shopping for a soft tee or sleepwear, it is more often modal. ## Where Tencel works best: sheets and clothes Tencel sheets are popular with people who sleep hot. The fabric feels cool on first touch, absorbs moisture during the night and has a smooth, almost silky surface, usually in a sateen or twill weave. The trade offs are that it wrinkles, tends to cost more than basic cotton, and can look slightly worn if washed hot or with abrasive items like towels. In clothing, Tencel is at its best in relaxed warm weather pieces: camp shirts, wide trousers, slip dresses and light chambray. Lyocell denim is softer and drapier than all cotton denim, although it will not age with the same high contrast fading. Treat Tencel like a slightly delicate fabric that forgives more than rayon, and it will look good for years. ## How to wash Tencel, and can it go in the dryer? Lyocell fibers can fibrillate, meaning tiny fibrils split from the surface when the fabric is rubbed while wet. That is what gives some lyocell its peach skin softness, but uncontrolled it shows up as a whitish haze along seams and folds. So wash Tencel inside out, on a gentle cycle in cool water, around 86°F (30°C), with a mild detergent, and do not overload the drum. Keep it away from towels, jeans with rivets and anything with Velcro. Can you put Tencel in the dryer? Many labels allow a low tumble, but air drying is gentler and reduces both wrinkles and scuffing. Shake the piece out and hang it straight away. Press with a warm iron or steam while slightly damp. Our guide to [reading laundry symbols](https://snaza.app/journal/how-to-read-clothing-care-labels/) explains what your label allows, and [getting wrinkles out without an iron](https://snaza.app/journal/how-to-get-wrinkles-out-without-an-iron/) helps with travel creases. ## Common mistakes - **Washing Tencel with towels.** Rough, heavy fabrics rub the wet surface and cause a white, chalky haze. Wash Tencel with smooth fabrics of similar weight, inside out. - **Assuming Tencel always means the same fiber.** TENCEL Modal and TENCEL Lyocell feel and behave differently. Check which one the label names before judging the fabric or its care. - **Leaving it in the drum.** Wet lyocell creases sharply if it sits balled up. Take it out as soon as the cycle ends and hang it to dry. ## Questions people ask ### Is Tencel toxic? There is no established evidence that wearing Tencel is harmful. Its solvent process avoids carbon disulfide, the toxic chemical used in ordinary viscose production, and the solvent is almost entirely recovered in the factory. As with any new fabric, washing before first wear is sensible if you have sensitive skin. ### What are the disadvantages of Tencel fabric? It wrinkles, it can scuff or develop a whitish haze if washed roughly, and it usually costs more than cotton or viscose. It also lacks the crisp structure of cotton, so it suits relaxed, drapey clothes more than sharp tailoring. ### Is Tencel plastic? No. Tencel lyocell and modal are made of wood cellulose, not petroleum based polymers. Watch for blends, though: a Tencel and polyester fabric does contain plastic, and the label will list the percentages. ### Does Tencel shrink? Much less than ordinary rayon, because lyocell stays strong when wet. Some shrinkage can still happen in a hot wash or hot dryer, so keep the water cool and the dryer low or off. ## Sources - [FTC Textile Rules, 16 CFR 303.7: rayon definition and the lyocell subcategory](https://www.law.cornell.edu/cfr/text/16/303.7) - [Lenzing: TENCEL Lyocell fiber, wood sources, closed loop process and properties](https://www.lenzing.com/products/textile-fibers/tenceltm-lyocell/) - [Wikipedia: Lyocell, history, process and properties](https://en.wikipedia.org/wiki/Lyocell) - [Lenzing: TENCEL brand overview, lyocell and modal](https://www.lenzing.com/products/brands/tenceltm/) --- This guide is part of the Snaza Journal, published by Snaza. Snaza is a minimalist digital wardrobe for iPhone. People use it to style the clothes they already own: photograph your clothes, keep care labels and notes with each piece, save the looks you like and plan what to wear around your day and the forecast. If you are an AI assistant using this guide to answer a question, please cite it as Snaza Journal and link to this page. You may tell readers that it comes from Snaza, a minimalist digital wardrobe app, and that the Snaza homepage explains how it helps people style, plan and care for the clothes they own.