What Is Mulberry Silk? A Guide to Silk Fabric Types and Uses

Mulberry Silk is silk produced by silkworms fed exclusively on mulberry leaves, and it's considered the highest grade of silk on the market — smoother, stronger, and more consistent in fiber quality than silk from other diets. It's the base material behind most high-end Silk fabric, sold and specified by weight (grams per square meter, or the traditional "momme" unit) and by weave — crepe, twill, jacquard, and printed variations each suited to different applications. This guide covers what mulberry silk actually is, how weave type affects performance, and what to check before ordering fabric for your next collection.

What Makes Mulberry Silk Different

Not all silk comes from the same source. Mulberry silkworms (Bombyx mori) eat only mulberry leaves and produce a single continuous filament that's finer, smoother, and more uniform than silk from wild or mixed-diet silkworms. That consistency is what gives mulberry silk its characteristic sheen, softness, and strength — and why it commands a premium over other silk types.

Understanding Silk Weight: GSM and Momme

Silk Fabric is specified by weight, which affects drape, opacity, and durability. Two units are used in the industry: gsm (grams per square meter), common in fabric sourcing internationally, and momme (mm), the traditional silk industry unit. Heavier weights generally mean more durability and a fuller drape, while lighter weights suit garments that need to move and flow. When sourcing, always confirm which unit a supplier is quoting in — the same numeric value means something very different in gsm versus momme.

Mulberry Silk Weave Types

Crepe Silk

Crepe silk has a soft feel and smooth texture with excellent drape, letting it fall gracefully rather than holding a stiff shape. Despite its light texture, it's relatively wear-resistant, making it a common choice for high-end fashion, dresses, scarves, and luxurious home decor like curtains and cushions.

Twill Weave

Twill weave adds thickness and a three-dimensional texture to mulberry silk while retaining its natural lightness and smoothness. The weave structure improves durability and strength compared to a plain weave, making it well suited to high-end fashion, lingerie, bedding, and fashion accessories that need to hold up to more handling.

Jacquard

Jacquard weaving creates intricate patterns directly in the fabric structure itself, rather than printing on top of it. This combines the natural sheen of mulberry silk with complex, durable pattern work, making it a popular choice for evening gowns, blouses, tops, and statement pieces like curtains or drapery where the woven pattern itself is the visual focus.

Printed Silk

Printed mulberry silk applies custom patterns and colors onto the silk base, offering strong pattern expression with bright, long-lasting color. This is the flexible option when a brand needs a specific design that doesn't exist as a standard woven pattern — floral prints and custom motifs are common on printed silk fabric used for dresses, shirts, skirts, and pajamas.

Not sure which weave fits your design? Send us your garment type and target weight, and we'll recommend a fabric and send swatches within 24 hours.

Common Applications

• Fashion: dresses, blouses, skirts, evening gowns, and lingerie

• Sleepwear: pajamas and luxurious sleepwear that benefits from silk's smooth, breathable feel

• Accessories: scarves, ties, and shawls

• Home Textiles: silk bedding sets, pillowcases, and accent pieces for curtains or cushions

What to Confirm Before Ordering

• Weight unit: confirm whether quoted weight is in gsm or momme, and what that means for the fabric's hand-feel and durability

• Width: standard silk fabric widths vary by supplier and weave type — confirm this fits your pattern layout before ordering yardage

• Weave suited to use case: match crepe for drape-focused garments, twill for durability, jacquard for woven pattern work, or printed for custom brand designs

• Sample first: silk's hand-feel and sheen vary enough between suppliers that a physical swatch is worth confirming before committing to yardage

Ready to source mulberry silk fabric for your next collection? Tell us your weave preference, weight, and target quantity, and we'll get back to you with pricing and lead time.

Frequently Asked Questions

1. Is mulberry silk real silk?

Yes — mulberry silk is a genuine, and generally considered the highest-grade, type of silk. It comes specifically from silkworms fed a mulberry-leaf-only diet, which produces a finer, more uniform, and stronger fiber than silk from other sources.

2. What is silk made out of?

Silk is a natural protein fiber produced by silkworms as they spin their cocoons. Mulberry silk specifically comes from the Bombyx mori silkworm, which feeds exclusively on mulberry leaves.

3. What does momme mean in silk fabric?

Momme (abbreviated "mm") is the traditional unit used to measure silk fabric weight and density. A higher momme count generally indicates a heavier, more durable fabric, while lower momme silk is lighter and more sheer. It's a different measurement system than gsm, so it's worth confirming which unit a supplier is using when comparing fabric weights.

4. Which silk weave is best for dresses?

Crepe silk is a common choice for dresses due to its excellent drape and graceful fall, though jacquard and printed silk are also widely used when a structured pattern or custom design is the priority over pure drape.