Properties and uses of silk
Properties and uses of silk depend on the variation of production. There are some important part need to take care. To define properties of silk we need to define its physical and chemical properties. Thereafter we also need to clarify about the uses of silk. Here we will discuss step by step properties and uses of silk.
Properties of silk
Microscopic structure of silk
Silk has its distinctive properties. It is soft, supple, sturdy lighter in weight than the other fibre. Silk is priced for its weight. Silk could be a natural macromolecule fibre wherever the macromolecule fibroin is command by a viscid substance
Microscopic properties of silk
Strength: Silk is that the strongest fibre. it’s a purpose of two.4 to 5.1 grams per denier. a lot of over smoothness of the silk filament yarn reduces the matter of wear and tear from abrasion. The strength of the spun silk yarns depends on the length of silk staple.
Shape and appearance: Silk filaments square measure terribly fine and long. they regularly live regarding one thousand to 1300 yards long. The breadth of the silk is from nine to eleven microns.
Elasticity: it’s associate elastic fibre and its physical property varies because it is fibre. Silk fibre could also be stretched from 1/7 to 1/5 its original length before breaking.
Cultivated degummed silk viewed lengthwise underneath a microscopic, resembles a swish clear rod underneath magnifier. Silk within the gum has rough irregular surface. Wild silk tend to be quite uneven and is a few what dark. it’s going to have longitudinal striations.
Resilience: Silk retains the form and resists wrinkling very well. this is often a lot of in materials made of pure silk instead of spun silk or weighted silk.
Drapabilty: Silk encompasses a pliability and suppleness’ that motor-assisted by its physical property and resilience offers it glorious drapability.
Heat conductivity: Since silk could be a macromolecule fibre. it’s a non conductor of warmth like wool. thence it’s used for winter attire.
Absorbency: the great absorbtive property of silk additionally contributes to its impact in hotter atmosphere. Silk usually absorbs regarding 11 November of its weight in wet that makes silk for straightforward dying and printing.
Cleanliness and wash ability: Silk is hygienical material as a result of its swish surface doesn’t attract dirt. It also can be simply clean by delicate soaps and cleansing.
Shrinkage: as a result of the filament long, swish surface silk have traditional shrinkage which might be simply rehabilitated by ironing at moderate heat and damp conditions.
Effect of lightweight: Continous exposure to light weakens silk quicker than either cotton or wool.
Resistance to mildew: Silk won’t be full of mildew unless left for time in damp state or underneath extreme conditions of tropical damp.
Reaction to alkalis: Silk isn’t as sensitive as wool to alkalis.It is effective in high concentration and temperature. Cold focused solutions of alkali like soda or hydroxide has slight action on silk. Heated resolution dissolved silk.
Reaction to acids: focused mineral acids dissolve quicker than wool. Organic acids don’t hurt them whereas medium focused HCL can dissolve silk.
Affinity for dyes : Silk has superb affinity for acid dyes however lightweight fastness is unacceptable.
Resistance to perspiration: Silk materials square measure broken by perspiration. The silk itself deteriorated within the presence of perspiration.
Reaction to bleach: Sturdy bleaches contain disinfectant can deteriorate silk. Delicate bleaches like metal perborate and peroxide also we can use with traditional caution.
Uses of silk
Silk is a rich luxury cloth. We use silk for creating totally different clothes. People are using silk primarily for its lusture and aesthetic look and they are using it for home furnishing. Silk is extraordinarily versatile and it spreads of materials from sheer chiffons to significant stunning brocades and velvets. Thanks to silk permeableness. It is applicable for heat weather wear. Thanks to its low physical phenomenon for weather wear, also in furnishing silk that commonly intermingled with alternative fibres to feature soft luster for furnishing cloth. sometimes costly hands created rugs square measure made of silk