The family they belong to
Modal and viscose are both regenerated cellulose fibers. Cellulose from plants, often wood pulp, is dissolved and then spun back into fiber. The result is soft, breathable and absorbent, takes dye richly, and drapes in a way synthetics struggle to imitate. That combination is why both appear across everyday hijabs, from plain rectangles to printed squares.
Within the family, processes differ. Modal is generally made to be stronger when wet and more stable in washing than standard viscose, which is why it is marketed as a premium version. Viscose, also called rayon in the United States, is the broader and more widely used fiber, and it comes in many fabric types: light woven, crinkle, jersey and blends. The exact properties of any fabric depend on the yarn, construction and finishing, not on the fiber name alone, so the sample, not the listing, is what a buyer approves.
How they compare in a hijab
| Point | Modal | Viscose (rayon) |
|---|---|---|
| Hand feel | Very soft, smooth, slightly cool | Soft; varies more by fabric type |
| Drape | Fluid, falls in long folds | Soft drape; crinkle types hold texture |
| Breathability | Good | Good |
| Washing stability | Generally more stable; confirmed by test | More prone to shrinkage if not pre-treated; confirmed by test |
| Printing | Takes prints well, rich color | Takes prints well; texture affects detail on crinkle |
| Common forms | Woven modal, modal jersey, modal blends | Woven viscose, crinkle viscose, viscose jersey |
| Typical role in a range | Premium everyday hijabs, custom prints | Everyday hijabs, crinkle styles, jersey basics |
Feel and drape on the head
Customers who like modal usually describe the feel first: smooth, soft and cool to the touch, with a drape that falls in long, even folds. It is forgiving to wrap and does not look stiff. Woven viscose is also soft, though more variable; a light viscose can feel almost as fluid as modal, while a crinkle viscose has a textured, springy surface that grips. Viscose jersey sits with the knits, closer to cotton jersey in how it wears but cooler and drapier.
Both fibers can be blended with polyester, cotton or spandex. Blends change the hand, the drape, the shrinkage and the label. If a supplier describes a fabric as "modal" or "viscose" without percentages, ask for the full composition before sampling.
Shrinkage and washing
This is where the two fibers differ most in practice. Regenerated cellulose fibers absorb water and can relax or shrink in washing. Modal is generally more stable than standard viscose, but neither is free of the issue, and pre-treatment at the mill or workshop makes a large difference. A hijab that loses length after the first wash becomes a return.
We do not state shrinkage figures in advance. Instead, the test plan names a shrinkage test on the approved fabric, the result is recorded, and the care label is written to match. Read shrinkage and colorfastness tests for how buyers usually set this up.
Printing and color
Both fibers take reactive dyes and digital prints well, which is why custom-printed ranges often start on modal. Colors come out rich and the hand stays soft, since the print sits in the fiber rather than on top. Viscose prints well too; on crinkle viscose the texture breaks up fine detail, which suits soft florals and abstracts better than sharp line work. For print planning, see custom printed hijabs.
Labeling: what the tag says
In the United States, the Textile Fiber Products Identification Act and FTC 16 CFR Part 303 require fiber content by generic name and percentage, country of origin, and the dealer's name or RN. Viscose appears as viscose or rayon. How modal is named on a US label is a detail to confirm with your compliance adviser before the labels are printed; what matters is that the label reflects the actual composition from the mill, including any blend.
A related point concerns fabrics made from bamboo cellulose. These are regenerated cellulose fibers too, and the FTC has acted against sellers that described them simply as bamboo. They are labeled as rayon or viscose from bamboo. See bamboo hijab labeling.
Flammability on light weights
Light and sheer viscose deserves extra care. Clothing textiles fall under 16 CFR Part 1610, which classifies fabrics with a 45-degree flame test; Class 3, rapid and intense burning, is not allowed for sale. The best-known scarf recall involved sheer rayon chiffon scarves, about 375,000 units recalled in 1995. If a viscose or modal hijab is sheer, plan a 1610 test on the fabric and confirm the plan with your compliance adviser.
Which to choose
Choose modal when the range is about softness, drape and print quality, and customers expect a premium everyday feel. Choose viscose when you want a broad, versatile base, including crinkle textures and jersey basics. Many brands run both: plain and printed modal as a signature line, with crinkle viscose and viscose jersey as everyday staples.
Reading supplier listings carefully
Listings in this category use the fiber names loosely. "Modal feel", "modal touch" or "silky viscose" may describe a polyester fabric finished to feel soft. "Premium modal" may be a blend with a modest share of modal. None of these phrases is a composition. Before a sample is approved, ask for the mill's fiber content in percentages, and if the price looks out of line with the fiber, ask again. The desk requests the composition in writing from the workshop and carries it onto the spec sheet, so the label, the product page and the fabric in the carton all say the same thing.
The hubs at modal hijabs and viscose and crinkle hijabs go further on each.
What to write on the spec sheet
- Composition. Fiber names and percentages from the mill, exactly as the label will show them.
- Fabric type. Woven, crinkle or jersey, with weight confirmed on the spec sheet from the approved sample.
- Pre-treatment. Whether the fabric is pre-shrunk, and the shrinkage test in the test plan.
- Print or color. Print method and strike-off, or lab dip for custom colors.
- Edge finish and size. Finished dimensions after washing, not only before.
- Care label. Wording that matches the test results.
Reference minimums for plain and printed runs are on MOQ and lead time and are confirmed in writing for each program.