When the cocoon is boiled, the hard cocoon becomes a loose ball of strong, flexible filament measuring over 1,000 meters.
Usually, this ball is uncoiled and wrapped onto a spindle for use in the textile industry making everything from clothing to rugs.
During silk comforter production, however, the silk filament is not unraveled, but rather stretched into a flat tangled web and layered to form silk floss.
The cocoons are first boiled to loosen the sericin holding the filaments together and remove the silkworm. Each cocoon is expanded outwardly by hand on a U-shaped wooden rack, and the ball of thread becomes a sheet of tangled fibers. This sheet is then hand-stretched again on a larger rack along with several other cocoons to make a thick, cottony bundle called silk floss.
It takes hundreds of these bundles to make a silk comforter.
Once enough silk cocoons have been stretched into bundles, the comforter begins to take shape. Workers grab the edges of the bundle and stretch it wide to match the dimensions of the desired comforter, and layer by layer the comforter begins to take shape. It can take anywhere between
100 and 400 of these thin layers to make a comforter, depending on bed dimensions and desired thickness. Since it takes many cocoons to make each layer, a silk comforter may be composed of thousands of silk cocoons.
Once the silk fiber layers are stacked together, they are sealed inside silk or cotton fabrics and the comforter is complete. The result is extremely light-weight despite the silk comforter's thickness. Silk
comforters provide excellent insulating properties similar to down, but tend to be less bulky than down duvets. Silk is a breathable fabric, making silk comforters comfortable in a wide temperature range. Thin silk comforters are used even in the summer.
Silk is a natural insulator: Depending on the temperature, silk duvets either draw heat away from the body, or traps in the warmth. In the winter, the large fibres in silk quilts reduce heat loss from the body, but in summer, the silk fleece sheds surplus heat by wicking away moisture from your body - keeping you cool and comfortable. This also means that one silk quilt will satisfy two sleepers with different warmth needs.
Silk is naturally hypoallergenic: Silk quilts are resistant to dust and house mites, mildew, mould, and rot that attacks other fibres. Sufferers of asthma, blocked sinuses or other hay fever symptoms, can find relief in silk quilt bedding, as well as those with allergies to down or other synthetic material.
Silk is composed of 18 amino acids: The same amino acids that are found in our own bodies. Medical studies have show that this can help blood circulation and your digestion system during sleep. It also helps to reduce the discomfort of itchy skin and aids in preventing vascular sclerosis.
Silk duvets are also suited to children: Their lightweight nature and breathable qualities ensure a
regulated, even, sleep temperature with no added chemicals for a healthier sleeping environment.
Silk quilts provide the same warmth as down quilts: They are comfortable all year round due to their insulating properties. Grams per metre (gsm) are the amount of silk (by weight) inside the cotton casing, on a square metre basis.
So now you know why so many people talk about loving their silk quilts or duvets.