Naia™

Overview

Eastman’s cellulose-acetate textile brand. Product variants and recycled-content offerings should be distinguished.

Feel and behavior

Depends on the specified fiber grade, yarn and fabric construction.

Where you find it

See the linked underlying material and the producer’s product-specific documentation.

Source and geography

Naia is the cellulose acetate textile brand of Eastman Chemical Company, headquartered in Kingsport, Tennessee, where Eastman began commercial Naia production in 2017. The generic fiber is acetate: cellulose from wood pulp chemically esterified with acetyl groups. The range includes continuous filament yarn and, later, staple fiber. Naia Renew is a variant that Eastman describes as about 60% wood pulp and 40% certified recycled waste processed through its molecular recycling technology.

Worth knowing

• A drop of acetone on a hidden seam allowance is a classic home test: acetate softens or dissolves while viscose, cotton and silk do not.
• Eastman cites a Woods Hole Oceanographic Institution study in which Naia disintegrated and biodegraded in seawater within months.

Types, grades and fabrics

Types and grades

Naia comes in three main forms. Naia filament yarn, the original 2017 product, is continuous cellulose acetate for wovens and knits with a silk-like luster. Naia staple fiber, which Eastman showed at Premiere Vision in 2020, is cut fiber for blending with other fibers in spun yarns, mainly for knitwear. Naia Renew, available as filament and staple, is described by Eastman as 60% wood pulp and 40% certified recycled waste plastics, with the recycled content allocated by an ISCC-certified mass balance method; Naia Renew ES is a version Eastman says carries increased recycled content. Within each form, deniers, filament counts and luster levels distinguish specific yarns.

Fabrics and products

Naia filament is used in satins, crepes, charmeuse-like wovens, jacquards and linings, in blouses, dresses and eveningwear, and in fluid knits. Staple Naia blends appear in sweaters, cardigans and T-shirt knits, where Eastman highlights softness and reduced pilling. Acetate's classic role as a lining persists alongside cupro and viscose. Eastman announced H&M as the first brand to adopt Naia Renew, in a Conscious Exclusive collection. Because acetate is thermoplastic, it is also used where heat-set pleats or moire effects are wanted.

Buying and care

How to judge quality

The label must say acetate, not Naia alone and not 'silk'. For filament wovens, look for a dense, smooth weave with no seam slippage and even luster; acetate satins with loose weaves slip at seams under stress. Test a hidden spot before using nail polish remover or perfume nearby: acetone dissolves acetate, and a genuine acetate fabric is marked by it. For Naia Renew, ask how the 40% recycled content is allocated: under mass balance, the recycled molecules are credited on paper across production, not physically traceable in each fiber. Eastman lists ISCC and GRS-related certifications; confirm the certificate covers the product.

Care in detail

Hand wash in cool water or use a delicate cycle at 30 C in a mesh bag, with mild detergent; many acetate garments are labeled dry clean only, and linings in tailored garments should be dry cleaned with the outer fabric. Never wring or twist. Roll in a towel and hang or dry flat, away from heat; do not tumble dry. Iron at the lowest setting (the one-dot range, about 110 C) on the reverse with a press cloth, because acetate glazes and can melt. Keep acetone, nail polish remover and some perfumes and alcohol-based sprays away. Store on padded hangers to avoid shoulder marks.

Care at a glance

Follow the finished product’s care label. A trademark does not specify the care needs of every blend or construction.

Environmental and social footprint

Eastman's claims are that Naia production recovers its solvents in a closed loop, and that Naia Renew has a lower carbon footprint than standard Naia; it also cites a study with the Woods Hole Oceanographic Institution showing Naia disintegrating and biodegrading in the ocean within months. Independent evidence adds context. In a 2019 washing study (Yang and colleagues, Environmental Pollution), acetate fabric released the most microfibers of the three fabrics tested, up to about 74,800 per square meter per wash. A 2023 study (Tan and colleagues) found cellulose acetate tow and film lost under 3% of weight after 16 weeks in river water or seawater, showing that degradation depends strongly on degree of substitution, form and microbial conditions. Biodegradability claims should therefore be read against their stated test conditions.

Tradeoffs

Producer claims apply to defined products and comparisons. This atlas does not independently certify performance, sourcing or environmental claims.

A useful question to ask: Which exact grade, composition and current producer documentation apply to this product?

Science

Data sheet

Cellulose ester

Cellulose is chemically modified by acetylation. This is different from regenerating cellulose as viscose or lyocell.

Structure and chemistry

Acetate is a cellulose ester, not regenerated cellulose. In cellulose diacetate most, but not all, of the three hydroxyl groups on each anhydroglucose unit are replaced by acetyl ester groups, which removes much of the hydrogen bonding that makes cellulose insoluble and hydrophilic. The result is a thermoplastic, acetone-soluble polymer with lower moisture uptake than viscose. Dry-spun acetate filaments typically have a lobed or crenulated cross-section formed as solvent leaves the filament surface, contributing to acetate's characteristic luster.

From source to yarn

In the conventional acetate route that Naia follows, wood pulp is acetylated with acetic acid and acetic anhydride to form cellulose acetate, which is partly hydrolyzed to the diacetate and made into flake. The flake is dissolved in acetone to make a spinning dope, which is extruded through spinnerets into warm air where the acetone evaporates (dry spinning, without a water bath). Eastman states that the acetone and acetic acid are recovered and recycled in a closed loop. For Naia Renew, Eastman states that plastic waste is broken down to molecular building blocks that feed acetyl production.

Performance in use

Acetate has moderate moisture regain, lower than viscose but far above polyester, and modest strength that falls when wet. It is thermoplastic: it softens and can glaze at ironing temperatures and dissolves in acetone and some nail-polish removers. It is dyed with disperse dyes because acetylation removes the hydroxyl sites that reactive and direct dyes need. Eastman describes Naia as silky, breathable and, in staple form, reduced in pilling, and states that Naia Renew has a carbon footprint about 35% lower than standard Naia; these are producer claims.

How it is identified

Burn tests are indicative only: acetate burns and melts, dripping, with an acrid vinegar-like odor and a hard, irregular bead. A classic solubility check is that acetate dissolves in acetone while triacetate, viscose and cotton do not. FTIR shows ester carbonyl absorption that separates acetate from regenerated cellulose. Acetate is sometimes confused with viscose or described as silk in retail copy.

History

Timeline

1. 2017Eastman launched the reformulated Naia cellulose acetate filament yarn in January and began commercial-scale production at Kingsport, Tennessee. [2]
2. 2020Eastman introduced Naia staple fiber for blending in spun yarns, mainly for knitwear, at Premiere Vision. [3]
3. 2025Eastman showed Naia filament variants at Intertextile Shanghai. [4]

Naia builds on cellulose-acetate chemistry with a contemporary branded textile range. A brand-level claim should be checked against the exact yarn or staple product.

The deeper record

Cellulose acetate became a commercial artificial-silk fiber in the early twentieth century, and Eastman developed Naia from its long-established cellulosics business. It launched the reformulated Naia textile yarn in January 2017 and started commercial-scale production at Kingsport that year. It added staple fiber for knits and blends, then Naia Renew with recycled content from its carbon renewal (molecular recycling) technology, and later filament variants shown at trade fairs such as Intertextile Shanghai in 2025.

Labeling and law

Naia is a trademark, not a generic name. US labels must use acetate (or triacetate where applicable) under the TFPIA and 16 CFR Part 303, and EU labels acetate under Regulation (EU) No 1007/2011. Eastman states that the recycled waste in Naia Renew is certified under the Global Recycled Standard (GRS); buyers should ask how the recycled share is measured or allocated and which certificate covers the specific product.

This describes what rules and standards cover. It is not legal advice; jurisdiction, product form and current rule text control.

Frequently asked

Is Naia natural or synthetic?

Neither exactly. It is made from wood pulp cellulose that is chemically modified with acetyl groups, so it is a manufactured cellulose ester. Labels call it acetate. It behaves partly like a cellulose and partly like a thermoplastic.

Is Naia the same as silk?

No. Acetate imitates silk's luster and drape, but it is a wood-derived manufactured fiber. It is weaker than silk, especially when wet, and is damaged by acetone and high heat. Content labels must say acetate.

Is Naia biodegradable?

Eastman reports certifications for biodegradation in soil and freshwater and composting in industrial facilities, plus a marine study. Independent research shows acetate degradation varies strongly with conditions, and garments with dyes, blends or threads may behave differently, so check the stated test conditions.

What does 'mass balance' mean for Naia Renew?

Eastman feeds recycled plastic into its chemical production and allocates the recycled share to certain products through ISCC-certified bookkeeping. The recycled content is real at site level but cannot be measured in any individual fiber.

Sources

• Naia: Official product information
• Eastman: Naia cellulosic yarn and fiber
• Eastman: Naia Renew, sustainable cellulosic yarns and fibers (PDF)
• Textile World: Naia, not your run-of-the-mill cellulose acetate (2017)
• Naia by Eastman: Sustainability
• Eastman: Naia Renew product page
• Eastman: Naia cellulosic staple fiber debuts (2020)
• PR Newswire: H&M first to adopt Eastman Naia Renew cellulosic fiber in Conscious Exclusive collection
• Environmental Pollution: Microfiber release from different fabrics during washing (Yang et al., 2019)
• Polymers: Degradation characteristics of cellulose acetate in different aqueous conditions (Tan et al., 2023)

Cite this page

Chaos. (2026). Naia™. In Fibers of Earth: An independent textile atlas. https://www.hendrickresearch.com/fibers/materials/naia/