TENACITY OF COTTON FIBER
Physical properties of fibers may be listed as below.
Colour,
Tensile strength,
Elongation at break,
Elastic recovery,
Specific gravity
Etc,.
Tensile strength.The strength properties,why strength is considered as a property ?.Because,what we are wearing the garments/clothing,should have strength,should have durability,should have resistance to tear and wear,should have resistance to other stress and strains.So,the garment or the fabric or the yarn to have strength,the base material fiber should have strength.
The yarn strength,fiber strength,garment strength,or the durability depends upon fiber strength.Fiber strength is not measured in Tensile.But it is measured in terms of Tenacity.Tenacity is a technical term used to measure the strength of the fiber.
The unit of measurement of tenacity is grams per denier/tex.Not only cotton,any other fibers tenacity is measured in unit of measurement is grams per denier/tex.Here,the cotton tenacity is 3 to 5 grams per denier.Because of this 3 to 5 grams per denier,fiber tenacity,it gives best durability to the yarn,fabric or garment/clothing strength.
And other important thing here is to consider the strength factor.If the cotton fiber is in a dried condition,it possessg around 3 to 3.5 grams per denier.But,when it is in the wet condition or when its gets wet,the material may be yarn or fabric or garment,the strength will increase by 20%.
Because of its morphological construction,cellulose present in cotton fiber is good substance in farming the cotton fiber.It is subjected to changes.If the cotton is in wet condition,wet,means if water particle goes into the fiber structure,the free space in the fiber structure is covered with water particle.That allow the fiber to increase the weight.But some fibers like synthetic fibers will not allow water particle into their structure.Cotton is easily allow,easily wet.
Cotton products are dyed easily,finished easily.Because it's having the cellulose polymers,are very flexible inside in the amorphous region with 11 to 13 % moisture regain value.
20% wet strength is more compared to dried fiber.The technical word tensile is not used for the fiber.But totally,when we talk about the textiles,the term tensile is used.And when we talk about material in the fiber form,the term tenacity is used.
Source:Based on educational qualification and experience of the Blogger/Author.

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