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Fibres · Plant

Paper (Washi)

The most unexpected fibre in knitting: a ribbon of Japanese paper twisted into yarn, extremely light and crisp. It has no elasticity, and precisely for this reason it makes sculptural fabrics that hold their shape like no other yarn.

Translated from Italian. A native knitter has not reviewed this translation yet.

paper Broussonetia papyrifera (paper mulberry, "kozo") JapanKoreaChina
paper mulberry
Paper mulberry

History

In Japan paper has been spun for centuries. From the tradition of washi, the handmade paper obtained from the bark of kozo, came "kami-ito", paper thread, and from weaving it "shifu", the paper cloth used in the Edo period for clothes, linings and light garments when silk was a forbidden luxury. From that craft heritage paper yarn has come back into fashion in summer knitwear and contemporary design accessories.

How the yarn is made

It is not spun from loose fibre: it starts from a sheet. The paper is cut into very thin continuous strips, then moistened and twisted on itself until it becomes a round, strong yarn. Some modern yarns use certified wood pulp or abaca fibre instead of kozo, but the principle is the same: a ribbon of paper turned into yarn by twist.

Why it is prized

It is valued for what other fibres cannot do. It weighs very little, is cool and breathable in summer, and its total stiffness makes it structural: a knitted hat, bag or basket stands up on its own, without linings or stiffeners. The matt, slightly papery surface gives garments a modern, graphic look.

Dyeing

Being cellulose, it takes direct and reactive dyes well, often applied to the sheet before cutting. Japanese tradition dyed it with indigo, which on twisted paper gives deep blues and beautiful irregular shading. Shades tend to stay matt and natural, without brilliance.

Care

Wash it gently, by hand in cold water: when wet the paper temporarily loses strength, so do not wring or twist it. Many paper yarns, however, improve with use and with the first wash, softening and losing their sharper stiffness. It does not pill and should be kept away from strong, continuous abrasion.

End of life

It is paper: pure cellulose, biodegradable and compostable when not coated or blended with synthetics. Coming from paper, it is also recyclable, and the best versions start from certified pulp from responsibly managed forests.

How to recognise it

HandExtremely light, dry and crisp, cool to the touch like a sheet of paper. It is stiff and has no springiness at all: you can tell at once it is not a classic textile fibre.
LookMatt with no sheen, with a slightly papery surface and the typical ribbon twist clearly visible. No lustre, no halo: the result is clean and graphic.
BehaviourIt does not recover after stretching and has no elastic return: instead it holds the fold and structure you give it. It drapes in a stiff, angular way, and softens a little with washing and wear.
Burn testCellulosic signature, identical to paper: it burns quickly with a bright yellow flame, smells of burning paper or wood, and leaves a light, crumbly grey ash, with no melted bead.
Home testsBurn test: quick yellow flame, smell of burning paper, light ash · Wet test: when moistened it loses strength and weakens, like a sheet of paper · Fold test: crushed, it holds its shape instead of springing back
Confused withNatural raffia, also crisp and matt: but paper shows the twist of a continuous ribbon · Viscose or synthetic ribbons imitating it: in the flame they melt into a hard bead instead of turning to ash
Only in a labWorking out which raw material the pulp comes from (kozo, abaca or wood) and telling it from other cellulose with certainty requires laboratory microscopic analysis (ISO 9184, fibre furnish analysis of paper, board and pulps).

Physical facts

PropertyValueSource
elastic memoryNone (very stiff)research
sagLowresearch
haloNoneresearch
felting riskNoneresearch
fineness (µm)—research
moisture regain (%)7.0estimate
typical shrinkage (%)0–5estimate
staple length (mm)—research

measured = a measurement with a reference · iso = a standard · research = a verified source · estimate = plausibility only

Good for

bags and baskets that hold their shape · hats and structured accessories · light, breathable summer garments · home furnishings · graphic and sculptural work

Less good for

stretchy, close-fitting knitwear · ribs and cuffs that must spring back · soft, fluid drape · warm winter garments

Certifications

FSCOEKO-TEX