Wool is the natural fully crimped textile fiber obtained from sheep and other animals. Wool is the primary fibers to be spun into yarn and into fabrics. Its surface encompasses a collection of serrated scales, which overlap every single other like as scales of fish. It has a stronger ignition threshold than many other fibers and is flame retardant up to six hundred point Celsius.
Silk fiber:
Silk is a natural protein fiber constituted of the silk worm. It is barely one non-hinder filament fiber amongst the diversified natural fiber. It also is the optimum impressive textile fiber. So, silk is is thought as queen of fiber.
Fig: Wool and silk fiber
Distinguish between Wool and Silk Fiber:
Wool is constituted of fur of animals.
Silk is constituted of cocoons of silkworms.
Outer Surface
Uneven scale
Very tender, normal and confident
It is a staple fiber and is fuzzy and duration is 2-8 cm
It is likewise a filament and is tender and duration is 300-2000 meter
It has extra amorphous locations and extra absorbent.
It is amazingly crystalline and is less absorbent.
Elasticity
It is extra elastic and resilient.
It is less elastic and resilient.
Wool doesnt have a shine.
Silk has a tender, shimmery visual attraction.
10 m to twenty m
Wool keratin polymer is a helical configuration crosslink polymer.
The silk fibron polymer is a linear fibroin polymer.
Amino acid
Wool polymer consists of twenty preference amino acids.
Silk is polymer consists of sixteen preference amino acids.
Disulphide bond
Wool comprise disulphide bonds i.e. cystine.
Silk doesn't comprise any disulphide bonds.
Polymer duration
Wool polymer is shorter than the silk polymer.
Silk polymer is about on condition that a hundred and forty nm.
Effect of acids
It is degraded reduce than silk.
It is degraded extra than wool ensuing from absence of disulphide bonds, perspiration this could be acidic will spark off breakdown of silk polymer.
Dimensional steadiness
It has 4 gives you in its fiber charter and as a outcome shrinks and felts.
It is a reputable fiber.
Repeating unit
Repeating unit of wool is the Peptide Bond.
Repeating unit of silk also is the Peptide Bond.
Chemical bond
Chemical bonding groupings of the wool polymer are hydrogen bonds, salt linkages, peptide and disulfide bonds and the like.
Chemical bonding groupings of the silk polymer are hydrogen bonds, the carboxyl and amino corporations which give rise to the salt linkages.
Attraction of polymer
Attraction between wool polymers are theory to be hydrogen bonds and Van der wall forces.
Attraction between silk polymers are theory to be hydrogen bonds.
Polymer arrangement
Keratin polymer lies in cross-associated and helical sample.
Fibroin polymers would have to as a outcome lie closer together than this reduce than facet nm.
Amorphous charter
Crystal charter
Hydroscopic nature
It is extra absorbent.
Since it has an absolutely crystalline polymer mechanical device, it only is less absorbent than wool.
Resistant to abrasion
Resistant to sun dwindled
Wool has specialist resistant in festival to sun dwindled.
Continuous publicity to dwindled weakens silk swifter than cotton or wool.
Thermal properties
It is less sensitive to warmth.
It is extra sensitive to warmth.
Wool is distinctly used for iciness apparel.
Silk is ceaselessly used for formal clothes.
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