CONCEAL® – Spiral Zipper YKK
| Articles: | CONCEAL® |
| Zipper type: | Coil zipper |
| Brand: | YKK |
| Country of Origin: | Japan |
CONCEAL® – hidden YKK spiral zipper. It got its name and popularity due to the invisible effect in the finished product and the graceful runner that remains in the public eye. The zipper retains the overall design of the garment. Ideal for dresses and skirts.
The slider of a hidden zipper can be painted in the shade of the zipper itself, or it can be a contrasting color.
The CONCEAL® is available with a semi-automatic lockout slider that allows the tongue to stay down and in the locked position, making it a great option for moving garments.
CONCEAL® – the highest quality hidden zipper!
Application:
- Women’s dresses/skirts
- Sport


YKK CONCEAL is a spiral zipper, specially designed to remain invisible from the front side of the product. Thanks to the design, in which the teeth and the slider are hidden behind the tape, the zipper is almost invisible after sewing. The effect of a smooth, continuous surface is especially appreciated in elegant women’s clothing, evening dresses, wedding dresses and models with a clean silhouette line.
The polyester spiral makes CONCEAL strong and durable, and the thin structure of the tape provides softness and flexibility during sewing and use.
Advantages
1. Completely invisible in the product
The main advantage of CONCEAL is its visual “invisibility”. After sewing, the zipper looks like a regular seam, not like a fastener, due to which the silhouette is clean and the appearance is impeccable.
2. Durability and reliability
Despite its thinness, the zipper can withstand regular loads, does not deform, is resistant to tearing and remains functional after repeated use and washing.
3. Softness and flexibility
The spiral design provides a smooth bend, due to which the zipper does not deform the fabric even when used in products made of silk, chiffon, cambric and other delicate materials.
4. Smooth running of the runner
The unique design of the runner, hidden under the tape, provides easy and silent sliding without jamming or catching. This is especially important when sewing evening and wedding clothes.
5. Versatility of application
CONCEAL is used not only in clothing. It is also suitable for decorative textiles, home decor, pillows, curtains, cosmetic bags, handbags and other accessories where a hidden fastener is needed.
6. Large selection of colors and lengths
The zipper is available in a wide range of colors, which allows you to accurately match the shade to the fabric. In addition, it is available in various lengths: from short 16 cm to long 60 cm and more — to order.
Technical specifications
- Zipper type: hidden, spiral
- Teeth material: polyester
- Tape: polyester, thin and soft
- Fastener width (teeth): about 3 mm
- Tape width: standard about 25 mm
- Slider: hidden, low profile
- Lengths: 16 cm, 20 cm, 22 cm, 25 cm, 30 cm, 40 cm, 60 cm, etc.
- Colors: more than 500 basic and individual shades
- Wash resistance: up to 60°C
- Manufacturer: YKK (Japan)
- Recommended needles for sewing in: No. 70–80
- Recommended foot: for concealed zipper
Where is the CONCEAL zipper used?
Clothing:
- Dresses (evening, wedding, cocktail);
- Skirts and trousers;
- Women’s blouses and shirts;
- Corsets and bodices;
- Children’s and teenage clothing;
- Overalls and sarafans.
Accessories:
- Bags, clutches;
- Cosmetics bags;
- Laptop and gadget covers;
- Theatrical costumes.
Textiles:
- Pillowcases and pillows;
- Bed linen;
- Decorative pillows;
- Curtains and drapes;
- Furniture covers.
Use recommendations
- For correct installation, it is recommended to use a special foot for hidden zippers, which allows you to sew as close to the spirals.
- The zipper is sewn in before stitching the parts, along the open edge.
- To avoid damaging the zipper, iron the tape on low heat before sewing.
- Suitable for machine and hand sewing.
- Can be used in both knitwear and lightweight fabrics — while the seam remains elastic and invisible.
Why choose YKK CONCEAL?
- Maximum aesthetics: the zipper is completely invisible after sewing
- Versatility: suitable for many types of products
- High quality materials: durability and wear resistance
- Ease of sewing: convenient for craftsmen of all levels
- Support of the YKK brand: reliability of the world leader in fittings
- Environmental friendliness: certified and safe production
Conclusion
The CONCEAL hidden spiral zipper from YKK is is the ideal solution for all those who value clean lines, elegance and reliability in every detail of the product. Thanks to its unique design, flexibility and strength, CONCEAL allows you to create truly professional products in which the clasp remains invisible, but fully performs its functions.







