Lyocell and modal often appear in the same conversations about soft, comfortable clothing. You may also see the name TENCEL™ alongside either one, making the labels a little confusing.
Both fibres belong to the regenerated cellulose family, but they are made differently. Understanding that distinction—and how fibre becomes yarn—can help you choose more confidently for your next project.
What does TENCEL™ mean?
TENCEL™ is a brand, while lyocell and modal are fibre types.
Lenzing produces both TENCEL™ Lyocell and TENCEL™ Modal. A label that says “TENCEL™ Lyocell” identifies a particular branded lyocell fibre; “modal” on its own does not identify the manufacturer. Lenzing: TENCEL™ Brand
For a useful comparison, start with the full fibre description rather than treating TENCEL™ and modal as opposites.
What do lyocell and modal have in common?
Both are manufactured from cellulose, commonly sourced from wood pulp. The cellulose is processed and formed into new textile fibres, which is why they are called regenerated cellulose fibres.
Their plant-based origin does not make them natural fibres in the same sense as cotton, which grows in fibre form on the plant. Textile Exchange: Manmade Cellulosic Fibres
Both can be used in clothing and blended with other fibres. Their shared origin, however, does not mean they follow the same production route or produce identical fabrics.
The main difference is how they are made
Lyocell production dissolves cellulose directly in a solvent system before forming it into fibres. Lenzing uses NMMO, an organic solvent, and recovers it for reuse.
Modal follows a modified viscose process. The cellulose undergoes chemical conversion before being dissolved and regenerated into fibres. Process adjustments give modal its characteristic wet performance.
These are different manufacturing routes. Lyocell’s solvent-recovery figures should therefore not be used to describe modal production. Lenzing: Fibre Technologies
| Aspect | Lyocell | Modal |
|---|---|---|
| Fibre family | Regenerated cellulose | Regenerated cellulose |
| Typical raw material | Wood pulp | Wood pulp |
| Production route | Direct dissolution of cellulose | Modified viscose process |
| Available under TENCEL™? | Yes | Yes |
| What to check when buying yarn | Full composition, construction, gauge and care | Full composition, construction, gauge and care |
How do they feel?
Both can produce soft fabrics, so “which is softer?” rarely has a useful answer without comparing specific yarns.
Lenzing highlights softness and moisture management for its TENCEL™ fibres. Its lyocell information also emphasises fibre strength, while its modal information describes softness retained through repeated washing and drying under the conditions supporting those claims. These are characteristics of the producer’s specified fibres—not promises about every finished yarn or garment. Lenzing: TENCEL™ Lyocell, Lenzing: TENCEL™ Modal
For makers, it helps to separate three impressions:
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Surface feel: Does the fabric feel smooth, silky, dry or softly textured?
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Drape: Does it fall freely or hold a more defined shape?
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Recovery: After gentle stretching, how well does it return to its original dimensions?
A yarn can feel soft without having much spring. A fabric can drape beautifully without being suitable for a close-fitting neckline. Look for the combination your design needs.
the pattern’s gauge is important, but matching its fabric behaviour matters too.
What if you are comparing lyocell with Modal-Cotton?
That is a comparison between a fibre or yarn composition and a blend.
A 100% lyocell yarn and a Modal-Cotton yarn differ in more than the presence of modal. Cotton content, yarn thickness, twist and construction may all influence the result.
Read the percentages first. Then compare equivalent swatches rather than assuming that any difference comes entirely from lyocell versus modal.
Is lyocell more sustainable?
The production route is relevant, but it does not provide a complete environmental ranking.
Wood sourcing, energy, chemical recovery and wastewater management all matter. Textile Exchange identifies raw-material sourcing as an important consideration for manufactured cellulosic fibres. Lenzing documents recovery systems for its own production, but one manufacturer’s data should not be applied to every supplier. Textile Exchange: Material Sourcing, Lenzing: Production Technologies
Look for documented information about the particular fibre you are buying. A brand name or fibre label is a starting point for those questions, not a substitute for the answers.
Choosing with the finished fabric in mind
Lyocell and modal offer different routes from cellulose to textile fibre. Neither label, on its own, tells you exactly how your finished piece will feel, fit or wash.
Check the composition, follow the yarn’s care instructions and work a generous swatch. Wash it, let it dry fully, then assess its dimensions, feel and movement.
The most useful choice is the yarn that gives you the fabric you want to make—and wear.
Explore our yarn collections to find materials for your next project.