Yarn Purchasing
There are various commonly used popular Yarn Formation Systems.Some of them are Cotton woolen or worsted, staple, Filament yarn formation systems. Also some of the common types of yarns like mercerized, dyed, grindle or twisted, yarns are discussed in this page.
Dyed Yarn
For making the stripes and jacquard design fabrics, the dyed yarns are used. Yarns are dyed by manually and by sophisticated machines. In manual yarn dyeing, we can not expect the consistency of shades, yarn strength, and better quality. Hence it is always advised to dye the yarns with the latest machines only.
For yarn dyeing, only combed yarns are used. Also, the yarn should have more yarn strength. It is called Count Strength Product (CSP).
Popular Yarn Formation Systems
Cotton Yarn Formation On removing the cotton from the bales, the cotton is opened up, blended and mixed with cotton from other bales. Finally, the fibers are formed into a thin partially oriented continuous web of intertwined fibers called a picker lap. The picker lap, in turn, undergoes carding to remove short fibers and remaining trash and to provide additional orientation to the fibers.
The cotton sliver from carded machines is combed before feeding to drawing in order to further straighten and orient the fibers and to remove additional short tangled fibers. The drawing portion of the operation is referred to as the drafting process.
Research
The three basic classifications of textile yarn include Staple Fiber Yarn, which uses mostly short natural fibers to make yarn; Ply yarns, which involve one or more strands of staple fiber yarn wound together; and filament yarn, which is wound from one or more long continuous filaments.
Thread is a subset of yarn. Both are lengths of spun interlocked fibers. Yarn is the word commonly used for the kind of fiber material that goes into the loom or needles from which textiles are woven or knitted. Thread is the word used for fiber material that sews pieces of textiles together.
As nouns the difference between fiber and yarn
is that fiber is (countable) a single elongated piece of a given material, roughly round in cross-section, often twisted with other fibers to form thread while yarn is (uncountable) a twisted strand of fiber used for knitting or weaving.