A frog closure is a decorative sewing notion used to close a garment, often made from silk ribbons or cords. They can be bought or made at home, and are often used on capes, jackets, and formal uniforms. The knot work distributes pressure and adds style to a garment.
A frog closure is a sewing notion that can be used like a button to close a garment. Frogs are often highly ornamental, designed to enhance the garment they are sewn onto as well as act as a closure. Many sewing stores have frog closures made in a variety of sizes, styles, and colors, and it’s relatively easy to make your own, too. Whether you buy one or make your own, make sure the opening is a snug fit, so the zipper doesn’t come open.
Silk ribbons or cords are used to make a frog closure. One end of the ribbon is folded over on itself several times, creating a knotted pattern that is used to secure the frog closure to the garment. The other end is used to make a loop or ball of cord. Two parts are needed for each frog closure: a loop and a ball of string to slide through it. The ball is forced through the loop, which holds the ball so that the garment remains closed. On some garments, the cord string is replaced with a wooden, ivory, or metal peg.
The name is likely a reference to the fact that a frog closure extends over a garment, like the limbs of a frog. In addition to being ornamental, the knot work of a frog closure also distributes pressure, which can be valuable on a tightly buttoned garment.
Capes, jackets, formal uniforms, and Chinese-inspired designs often use frog clasps instead of buttons. On an otherwise plain garment, a frog closure can add a touch of style, and on an ornate garment, a frog closure can complement embroidery, beading, and other accents. The clasps can also be easily removed and sewn back on, making garments with frog clasps somewhat adjustable. As a general rule, the frog closure is tailored to the textile used to make the garment, so that it blends in slightly.
When making a frog closure by hand, most sewers use stiff braided cord, and may starch or glue it to ensure the knot will hold. The frog clasp knot should be securely sewn so it won’t come apart, and the cord string should be sealed to prevent unraveling. Knot patterns are limited only by the artisan’s imagination, and can be of any size, from very large to small and simple.
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