Algas Fiber

We Don’t Need to Cut Forests to Make Fibers.

Altfibr delivers the performance of softwood kraft—without the forest footprint. Lower cost. Higher efficiency. No compromises.

Our awards

MassChallenge 2025 Award Winner

Recognized for reshaping fiber supply chains with scalable, high-performance alternatives to forest-based materials.

Trusted by Innovators Across Industry and Research

Leading manufacturers and research partners choose Altfibr to drive performance, unlock new materials, and scale real-world impact—beyond just sustainability.

Why Us

Why Altfibr Delivers What Others Can’t

Stronger. Better. Proven.

When blended with Southern Bleached Kraft Pulp, Altfibr boosts tensile and burst strength by up to 100%—delivering measurable performance gains without reengineering your process.

Consistent Supply, Zero Guesswork

Unlike wheat straw or corn, which are harvested just once a year, Altfibr’s feedstocks come from crops harvested every week—delivering year-round fiber at scale. And because we don’t rely on forest-based or annual crops, we help you avoid the regulatory risks tied to conventional fiber sourcing.

Technically Advanced Inputs

We engineer our fibers from high-yield agricultural byproducts like banana stems, pineapple leaves, and seaweed—designed for performance, not just sustainability.

Drop-In Compatibility

Engineered to work with your existing machinery. No slowdowns. No retooling. No trade-offs on drainage or runnability.

Applications

Built to Perform Across Industries

Kraft Pulp Replacement Solution

Our Non-Wood Kraft Pulp (NWKP) blends seamlessly with SBSK and boosts tensile and burst strength by up to 100%—delivering next-level performance without the NBSK price tag.

Lightweight Textile Fiber for Fashion

Our novel cellulose fibers land between cotton and linen—offering performance, comfort, traceability, and a lower carbon footprint. All the impact, none of the luxury markup.

Bio-Based Barriers for Packaging

Altfibr’s NWKP is processed into nano-cellulose barriers that rival incumbent technologies—while slashing energy use and eliminating petroleum-based inputs.

Products

Engineered Fiber Products That Outperform the Status Quo

KraftMax™ NWKP

Kraft Pulp Replacement

EcoTex™ Fibers

Lightweight Textile Fiber for Fashion

BioBarrier™ NWKp

Bio-Based Barriers for Packaging

Our Values

What Drives Us Forward

Performance-Driven, Always

We build for speed, scale, and strength—because your materials have a job to do. Sustainability is the bonus, not the baseline.

Innovation is Our Default

We rethink fiber from the molecule up—using science and engineering to unlock what nature can do, faster and smarter than before.

Built Around the Operator

Our tech works where you work. Seamless integration, minimal disruption, and a deep understanding of what your team actually needs.

Real Impact, at Industrial Scale

We’re committed to being your partner of choice and delivering solutions that exceed expectations at industrial scale, not just lab scale.

Tired of the Same Fiber Story?

We are too. Let’s talk about how Altfibr can replace legacy materials, beat your KPIs, and unlock new supply chain flexibility—without cutting trees.

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