Kenaf

Overview

Production: about 200,000 tonnes (world kenaf and allied fibers, 2021/22). Main producers: India (about 49%), China (about 20%). [1]

Bast fiber from Hibiscus cannabinus, with a woody core that can have separate uses.

Feel and behavior

Coarse plant fiber, often used for structure.

Where you find it

Cordage, pulp, nonwovens and composite reinforcement.

Source and geography

Kenaf is Hibiscus cannabinus (Malvaceae), an annual herbaceous plant with a long history of cultivation in Africa that is now grown mainly in Asia. Reported global production of kenaf and allied fibers has been roughly 200 thousand tonnes a year, with India and China accounting for about 49 and 20 percent respectively in 2021/22. Malaysia has promoted kenaf as a strategic crop, and interest extends to pulp, boards and composites alongside fiber.

Worth knowing

• Kenaf is a hibiscus, Hibiscus cannabinus, in the same genus as roselle and ornamental hibiscus.
• In a hydroponic study, cadmium stress increased cell wall polysaccharides in kenaf roots, which may help hold the metal in the roots and limit its transport to shoots.

Types, grades and fabrics

Types and grades

Kenaf is sold as two fractions of the same stalk with very different uses: long bast fiber from the outer bark and short, absorbent core fiber from the woody center, often called kenaf core. Bast fiber is judged by extraction route, fineness, color and cleanliness; water-retted fiber is finer and brighter than fiber from fast chemical or purely mechanical routes, which tend to be shorter or weaker. Buyers also meet kenaf as whole-stalk pulp for paper and as needle-punched or thermally bonded nonwoven mats. Cultivars differ in fiber yield and maturity, so seed choice depends on region. Trade statistics often group kenaf with jute and allied fibers, and EU labels may call it jute, which makes separate figures and products hard to trace.

Fabrics and products

Kenaf's biggest textile-adjacent market is technical. Nonwoven mats of kenaf, often combined with polypropylene or other binders, are heated and pressed into molded interior panels for vehicles and into composite boards. Traditional products are sacking, twine, rope and coarse burlap-like cloth. Spun kenaf can be blended with cotton for heavier fabrics, but its coarseness limits it to bags, upholstery and home textiles. The core fraction becomes animal bedding, oil and liquid absorbents, potting media and lightweight board, and whole stalks can be pulped for paper.

Buying and care

How to judge quality

For fiber and yarn, look for long, clean strands with little adhering core or bark and an even cream to light tan color; dark specks and stiff patches usually mean incomplete retting. Water-retted fiber is generally finer and better for spinning. For nonwoven mats, ask for areal weight in grams per square meter, the fiber-to-binder ratio and moisture content, because kenaf absorbs water and moisture variation affects molding. Since EU rules can apply the jute name to kenaf, a jute label does not rule kenaf out. Claims about carbon capture or soil cleanup should be supported by data for the specific product.

Care in detail

Kenaf fabrics are usually coarse, jute-like home textiles, and the label governs. General guidance is to spot clean or hand wash in cool water with mild detergent, avoid long soaking, and dry flat in shade, because wet bast fiber is weaker and can shrink or distort. Iron on a medium to hot setting while slightly damp if needed. Keep kenaf goods dry in storage, since damp fiber mildews and smells. Sunlight yellows the lignin, so rotate upholstery and keep bags out of strong sun. Molded kenaf panels in cars need no care beyond cleaning the covering surface. Kenaf core absorbents and bedding are single-use and should be disposed of according to what they absorbed.

Care at a glance

Follow the complete product’s care label. Blends, dyes, finishes and construction can change suitable washing, drying and storage.

Environmental and social footprint

Kenaf is an annual crop grown mainly in India and China. A 2025 review in Science of the Total Environment grouped it with hemp, ramie, jute and flax as bast crops with potential for carbon uptake, use of marginal land and phytoremediation. That potential cuts both ways: hydroponic work shows kenaf roots accumulate cadmium, and a 2023 study found that intercropping kenaf with soybean on mining soil raised cadmium in kenaf leaves, so fiber from polluted land may carry metals. Water retting, which gives the best fiber, can load ponds and streams with organic matter, while chemical retting adds alkaline effluent. No widely accepted cradle-to-gate footprint for kenaf textile fiber was found, and sequestration claims usually describe growing biomass rather than long-term storage.

Tradeoffs

Origin, processing inputs, labor, product construction and useful lifetime all need specific evidence. The name alone does not establish responsible production.

A useful question to ask: What exact material, product form and documented producer stand behind this name?

Science

Data sheet

Cellulose-rich plant material

Seed, stem, leaf or other plant structure. Extraction and preparation vary.

Structure and chemistry

The stalk has two distinct tissues: an outer bast layer, about 35 to 40 percent of stem weight, containing long phloem fiber bundles, and a woody core of 60 to 65 percent made of short fibers. The bast fibers are lignocellulosic cells with thick secondary walls, in which the S2 layer makes up most of the wall thickness. Reported composition ranges widely, about 31 to 72 percent cellulose and 6 to 20 percent lignin, depending on variety, age and extraction. Single fibers or small bundles are commonly about 50 to 145 microns across, with density about 1.2 to 1.5 g/cm3.

From source to yarn

Stalks are harvested manually or mechanically, then the bast is separated from the core by retting and decortication. Water retting relies on microbes to degrade pectin and produces the finest fibers, reported at about 3.2 to 3.7 tex, and relatively high strength. Chemical (alkali), enzymatic and mechanical routes are faster but can shorten or weaken fibers; enzymatic extraction tends to preserve structure better than harsh chemicals. The core fraction is used for absorbents, animal bedding and boards. Fiber is dried, softened and spun into coarse yarns, or processed into nonwoven mats for automotive panels and composites.

Performance in use

Kenaf is a stiff bast fiber with reported tensile strength of about 223 to 1,193 MPa, modulus of about 11 to 60 GPa and elongation of roughly 1.6 to 5.7 percent. It absorbs moisture readily, which helps comfort in blends but weakens bonding to hydrophobic polymers and promotes swelling in wet service. Alkali and other surface treatments are standard before composite use. Like jute, lignin causes yellowing in light. It takes direct, reactive and sulfur dyes typical of cellulosics, but its coarseness limits it to heavier fabrics, cordage and industrial textiles.

How it is identified

Burn tests are indicative only: kenaf burns like other cellulosic bast fibers with a paper or wood smell and gray ash. Under the microscope it resembles jute, appearing as bundles of lignified cells with visible lumens. Distinguishing kenaf from jute and roselle (Hibiscus sabdariffa) is difficult by appearance alone and may require detailed anatomy or DNA methods. Kenaf core material in panels is a different, woody fraction.

History

Timeline

1. c. 4000 BCEKenaf cultivation is traced back to about 4000 BC in ancient Africa. [1]
2. 2021/22India produced about 100,000 tonnes and China about 41,000 tonnes of kenaf and allied fibers, about 49% and 20% of the world total. [1]
3. 2023Field work on mining soil found that intercropping kenaf with soybean raised cadmium in kenaf leaves, a caution for fiber from polluted land. [2]
4. 2024Hydroponic work described how kenaf roots tolerate and sequester cadmium under stress. [3]
5. 2025A review grouped kenaf with hemp, ramie, jute and flax as bast crops with potential for remediation of degraded land. [4]

Kenaf entered commerce alongside other jute-like bast fibers. Industrial interest later extended to pulp, panels and composite products.

The deeper record

Kenaf is thought to have been cultivated in Africa for thousands of years, and it later spread through South and Southeast Asia where it entered commerce alongside jute for sacking and cordage. Industrial interest later extended to kenaf as a fast-growing source of pulp and board, and to its use as a reinforcement for natural fiber composites in vehicle interiors. Recent studies promote it for marine and construction composites, while noting persistent problems with moisture uptake and fiber variability.

Labeling and law

In the EU, Regulation (EU) No 1007/2011 governs textile fibre names; its Annex I definition of jute, as we read it, extends the jute name to bast fibers of certain other species including Hibiscus cannabinus, so kenaf may appear as jute on EU labels. Readers should confirm against the current consolidated Annex. In the US, the Textile Fiber Products Identification Act (15 U.S.C. 70 et seq.) and 16 CFR Part 303 require common-name disclosure for covered textiles. Composite panels and pulp are generally outside textile labeling rules.

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

Frequently asked

Is kenaf the same as jute?

No. Kenaf is Hibiscus cannabinus, while jute comes from Corchorus species. Both give coarse bast fibers used for sacking and twine, and the jute definition in Regulation (EU) No 1007/2011 extends to kenaf, so an EU jute label may cover it. Telling them apart in finished goods usually needs laboratory work.

Why is kenaf used in car interiors?

Kenaf bast is stiff and light, and nonwoven mats of kenaf with a thermoplastic binder can be heated and pressed into shaped panels. Research reviews name moisture sensitivity and fiber variability as the main technical hurdles, which surface treatments and binders are meant to address.

Does growing kenaf clean polluted soil?

Studies show kenaf tolerates and accumulates cadmium, which is why it is investigated for phytoremediation. That does not make every kenaf product a cleanup product, and fiber grown on contaminated land may contain metals that should be tested before it is used in consumer goods.

Sources

• Food and Agriculture Organization: Jute and hard fibres
• Materials (2025): Kenaf fiber-reinforced biocomposites for marine applications, a review
• EUR-Lex: Regulation (EU) No 1007/2011 on textile fibre names
• eCFR: 16 CFR Part 303, Rules and Regulations Under the Textile Fiber Products Identification Act
• Science of the Total Environment (2025): Sustainable environmental remediation with bast fiber crops
• Frontiers in Plant Science (2024): Cd tolerance and detoxification mechanisms in kenaf under Cd stress
• Environmental Science and Pollution Research (2023): Intercropping of kenaf and soybean and uptake of cadmium and lead in mining soil

Cite this page

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