OHZEHN-TEX vs Kintra: Bio-Nylon vs Bio-Polyester

1. The chemistry, in one paragraph each

OHZEHN-TEX™ (bio-nylon, PA6.10)

OHZEHN-TEX is a plant-derived performance fabric platform built on PA6.10, a bio-based polyamide polymerized from castor-oil-derived sebacic acid. The polymer is roughly 62 percent bio-based by mass. Combined with bio-based stretch chemistry, finished OHZEHN-TEX™ fabric is 99.5 percent plant-derived. Mechanical profile is nylon-class: high tensile strength, high rebound, compression-grade recovery. Manufactured at four Fuzhou factories with a US operating entity for sample distribution and account service.

Kintra Fibers (bio-polyester, PBS / PBST)

Kintra is a Brooklyn-based bio-polyester program building fibers in the PBS (polybutylene succinate) family from corn-derived succinic acid. The chemistry is bio-polyester, not bio-nylon. Mechanical profile is polyester-class with a softer, drapier hand than PA6.10, and PBS-family polymers biodegrade under industrial-composting conditions. Positioning is centered on drape-driven and end-of-life-focused applications. Production is scaling.

2. Side-by-side comparison

Pick by end-use: stretch-heavy (leggings, bras, swim, shapewear) → PA6.10 bio-nylon. Drape-heavy or biodegradation-focused (base layers, lounge, woven) → PBS bio-polyester.

3. Why the chemistry family drives the pick

Founders shopping "plastic-free performance fabric" often collapse the category into a single option. That collapse costs money. The chemistry family drives the mechanical profile, and the mechanical profile drives whether the finished garment holds up.

If the product is stretch-heavy: leggings, sports bras, swim bottoms, compression shorts, shapewear, seamless intimates. Bio-nylon (PA6.10) is the pick. PBS-family bio-polyester has not yet demonstrated compression-grade rebound at scale. A leggings program built on PBS will show elongation at the knee within weeks of consumer wear.

If the product is drape-heavy: base layers, lounge sets, lightweight lounge dresses, drape-forward silhouettes. Bio-polyester (PBS/PBST) delivers a softer hand than bio-nylon. It is the closer analog to silk-like drape without silk's cost, and it biodegrades cleanly in industrial-composting conditions.

If the product needs true end-of-life biodegradation as the primary story: Kintra's PBS-family chemistry has the more mature composting profile today. OHZEHN-TEX's third-party biodegradation certification is pending; the fabric has a plant-derived polymer spine but we do not publish a certified figure until the Miami lab returns.

4. Where OHZEHN-TEX wins on operations

• Published pricing. OHZEHN-TEX publishes the $15.50 per yard baseline and the full GSM chart on the bio-based nylon pricing page. Kintra and most competitors quote case by case. Founders shopping plastic-free performance fabric are usually tired of "let's schedule a call" as the answer to a pricing question. Kintra Fibers pricing is not published; the company operates a case-by-case quote model as of 2026. OHZEHN-TEX pricing is published at $15.50/yd at 220 GSM baseline; see the full chart.
• Manufacturing at scale today. Four Fuzhou factories with OEKO-TEX Standard 100 Class II, GRS v4.0, ZDHC and SAC membership, a PVH-accredited in-house lab, and Bureau Veritas verification. Production is at commercial scale on day one, not a scaling story.
• Licensed-ingredient hangtag program. Brands that spec OHZEHN-TEX™ license the hangtag and mark. Consumers encounter the brand through the badge on licensee garments, the Gore-Tex model applied to plastic-free fabric.
• US operating entity. Ohzehn LLC (Pennsylvania) handles sample distribution, account service, and hangtag program administration. Sampling and communication windows compress relative to Italy-based (Fulgar) or Brazil-based (Solvay) alternatives.

5. Where Kintra wins

• End-of-life biodegradation certification maturity. PBS-family chemistry has a more established industrial-composting profile today. Programs that lead with the compost story have a shorter path with Kintra.
• Drape-driven categories. Silky hand, softer recovery, closer to the aesthetic profile of viscose or silk than PA6.10 will deliver.
• US-founded narrative. Brooklyn-based, US-founded story fits certain brand narratives more cleanly.

6. Can a program use both?

Yes, and this is the answer we give when a brand's line spans both stretch-heavy and drape-heavy pieces. A leggings program on OHZEHN-TEX bio-nylon and a matching lounge program on Kintra bio-polyester is a reasonable dual-source setup. Both fabrics can carry a plastic-free positioning honestly, and the fiber-content label on each piece tells the truth without cross-contamination.

The mistake to avoid is picking one chemistry for the whole line by default. The chemistry needs to match the end use, or the brand ships a fabric that under-delivers on one category to keep supply-chain simplicity.

7. What about Fulgar EVO and Solvay Amni Soul Eco?

Both are relevant reference points. Fulgar EVO uses the same PA6.10 chemistry as OHZEHN-TEX; Fulgar is Italian, Euro-priced, and historically stronger in hosiery and legwear channels than in the American activewear stack. Solvay Amni Soul Eco is petroleum-derived PA6.6 with a biodegradation additive, not bio-based; it is Brazil-based with weak US warehouse presence. See the full four-way comparison on the plastic-free performance fabric guide.

8. Frequently asked questions