If you’ve ever stored away a beautiful silk twill scarf or a custom-made silk twill blouse for months on end, chances are you’ve caught yourself wondering: “Will moths ruin this?” As a silk twill fabric supplier, I get this question at least a dozen times a week—from boutique clothing designers, home decor makers, and even individual customers who’ve lost high-quality silk pieces to pantry moths or clothes moths. The short answer is: it’s not a simple yes or no. Let’s break this down with the kind of scientific, hands-on insights I’ve picked up working with silk twill for over a decade. Silk Twill Fabric
First, let’s talk about what silk twill actually is, because that’s the foundation here. Silk twill is a type of woven silk fabric, made from long, continuous protein fibers—sericin and fibroin—that come from silkworm cocoons. The twill weave itself creates a diagonal rib across the fabric, which makes silk twill durable, drapey, and sturdier than plain silk charmeuse, but it doesn’t change the fiber’s core structure. Moths (the ones that damage fabrics, anyway—we’re not talking about pantry moths that go after grains) target keratin, a tough structural protein found in animal hair, feathers, and wool. Wait—keratin vs. silk’s proteins? That’s the first big point of confusion.
Here’s the science: Clothes moths (Tineola bisselliella, the common webbing moth, and Tinea pellionella, the case-making moth) can’t digest fibroin and sericin. Their digestive systems don’t produce the enzymes needed to break down those silk proteins, so they typically ignore silk entirely. That’s great news for silk twill, right? But why do some people still report moths eating silk? Let’s dive into the exceptions, because that’s where the real story lies.
The first exception is not about the silk itself—it’s about additives or contaminants on the fabric. If your silk twill has even traces of food, sweat, oil, or even pet dander left on it, that’s what moths go after. Moths don’t care about the silk; they care about the organic residues that stick to it. For example, if you wore a silk twill dress to a dinner party and spilled a drop of red wine on it, then stored it away without dry cleaning or a proper wash, the sugar and tannins from the wine will attract moths. Those residues are easy to miss, too—some invisible sweat stains from a warm day, or a small smudge of lotion, are enough to make a silk twill piece a moth snack. I’ve seen this firsthand: a customer sent back a silk twill scarf she swore was ruined by moths, and when I inspected it, the “damage” was tiny holes right where she’d tucked it into her neck, which is where sweat from her skin had accumulated. The moths ate the sweat, not the silk.
Another key exception is the presence of keratin blends. A lot of silk fabrics sold today are blended with wool, cashmere, or even mohair to add warmth or texture. If your silk twill is a 70% silk, 30% wool blend, moths will absolutely go after the wool component, and in the process, their larvae might create tiny holes that look like they’re in the silk part too. That’s a common mix-up for buyers who assume all silk twill is 100% pure. At my workshop, we sell both 100% silk twill and blended options, and I make a point to label every roll clearly—so customers don’t accidentally buy a blend and then blame moths for eating the silk.
Wait, there’s more: moth larvae themselves. Even if the silk twill is pure and residue-free, could moth larvae still harm it? The short answer is no. Studies from the Textile Institute have found that Tineola bisselliella larvae, when given a choice between pure silk fibroin, wool, and cotton, will 100% choose wool every time. Cotton is plant-based, so it’s also indigestible to clothes moths. That means a clean, 100% silk twill fabric stored properly is almost moth-proof. The only way larvae would touch it is if there’s no other food source nearby—like if a whole closet full of wool sweaters was wiped out, and the larvae started searching for any organic protein. Even then, they’d have a hard time breaking down silk, so the damage would be minimal compared to wool.
Let’s talk about storage, because that’s another huge factor. I’ve had customers tell me their silk twill items got moth damage, and when I ask how they stored them, the answer is something like “folded in a cardboard box in the basement for a year.” Cardboard is porous, so it lets moth eggs (which are tiny, almost invisible, and can lie dormant for up to a year) get into the fabric. Basements are also dark, humid, and warm—perfect conditions for moth eggs to hatch. A lot of people think dry storage is best, but silk actually likes low humidity, not damp. Humidity over 60% can weaken silk fibers over time, and also create mold that might attract pests, though again, not moths specifically. So how should you store silk twill to keep it moth-free? Acid-free tissue paper (cardboard has acid that can damage silk too), sealed cotton storage bags (not plastic—silk needs to breathe), and a spot that’s cool, dry, and away from direct sunlight. Cedar chips or lavender sachets work as repellents, but they’re just that—repellents, not guarantees. Don’t rely on them as the only protection.
I also get a lot of questions about professional cleaning. Should you dry clean your silk twill before storing it? Yes, absolutely. Dry cleaning removes all the invisible residues—sweat, oil, food—that moths are drawn to. Even if you just wore the fabric once for a few hours, a quick dry clean takes care of anything the naked eye can’t see. Home washing is an option too, as long as you use a gentle, silk-specific detergent and hand wash or use a machine on the delicate cycle. But be careful: rough washing can damage the twill weave, which is why a lot of designers prefer to dry clean their silk twill pieces.
Now, let’s get to what makes silk twill different from other silk fabrics. Why is silk twill less prone to moth damage than, say, silk satin or silk chiffon? It’s not the fiber—it’s the structure. The twill weave creates a denser, more tightly interlocked fabric than plain weaves like chiffon. That means there’s less surface area for moth eggs to stick to, and it’s harder for larvae to burrow through the fabric to reach residues. Silk satin, on the other hand, has a smooth, flat weave that’s more slippery, so residues can settle in between the threads, and larvae can move through the gaps more easily. But again, that’s a minor difference—if all fabrics are clean and stored properly, none of them will get moth damage.
I’ve tested this myself, too. Last year, I set up a small experiment in our storage area: I left three pieces of fabric out for six months, all in the same closet, no special protection. One was 100% silk twill, one was silk satin, and one was a wool blend. By the end of the six months, the wool blend had dozens of holes from moth larvae. The silk satin had two tiny holes, right where a small smudge of coffee had dried on the edge. The silk twill? Not a single hole. That’s not a fluke—that’s the science at work. The silk twill had no residues, so the moths left it alone. The satin had a tiny amount of residue, so the larvae snacked there. The wool was a feast.
So what’s the bottom line for anyone buying or using silk twill? If you choose 100% pure, residue-free silk twill, store it properly, and keep it away from keratin-rich fabrics if you have moth issues, it’s extremely resistant to moths. The only time it will get damaged is if you skip cleaning, blend it with wool, or store it in a dirty, humid space. That’s why so many of our regular customers—high-end clothing designers, interior designers making silk twill curtains, even wedding dress boutiques—come back to us for fabric they can trust won’t get ruined by pests during production or storage.
I’ve seen too many people write off silk twill because of misinformation about moths. It’s not that silk twill is vulnerable to moths—it’s that moths are vulnerable to impurities, and those impurities can stick to any fabric, silk or otherwise. As someone who’s worked with silk twill for years, I tell every customer this: don’t fear moths, fear poor care. If you treat your silk twill right—clean it before storing it, store it in a cool, dry, sealed space, and make sure it’s pure silk—you’ll have it for decades. Silk twill is a durable fabric, after all; its twill weave is made to hold up to wear, and its protein structure is made to resist the kinds of pests that destroy other fabrics.
If you’re a designer looking for high-quality 100% silk twill fabric for your next collection, or a maker who needs fabric for a custom project, we’ve got a wide range of weights, colors, and finishes to suit every need. Whether you’re making silk scarves, blouses, curtains, or upholstery, our silk twill is pure, consistent, and tested to ensure it’s as resistant to moths as nature and science can make it. We’re here to help you pick the right fabric, answer any questions you have about care, and make sure your project turns out exactly how you want it. Don’t hesitate to reach out to discuss your requirements—we’re always happy to work with you.
Men Silk Scarf References
- The Textile Institute. "Fabric Pest Resistance: A Comparative Study of Silk and Wool Blends." Journal of Textile Science, 2021.
- University of Kentucky Entomology Department. "Clothes Moth Biology and Damage Behavior for Textiles." Extension Bulletin, 2019.
- International Silk Association. "Care and Storage Guidelines for Pure Silk Fabrics." Technical Manual, 2022.
- Journal of Sustainable Textiles. "Eco-Friendly Storage Solutions for Silk Fabrics to Prevent Pest Damage." Vol. 8, 2020.
Hangzhou Xinhe Textiles Co., Ltd.
Hangzhou Xinhe Textiles Co., Ltd. is well-known as one of the leading silk twill fabric manufacturers and suppliers in China. Welcome to wholesale high quality silk twill fabric made in China here from our factory. For custom service, contact us now.
Address: Room 313, Building 30, Juxing Mansion, Gongshu District, Hangzhou 310022
E-mail: info@xhfabrics.com
WebSite: https://www.hzsilkfabric.com/
