Technology of Yarn Spinning 2 min read
EFFECT OF MACHINE DEFECTS
The irregularities that may be caused by machine defects are usually independent of those caused by the material characteristics. However,…
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The Effect of Fiber Properties
The fiber properties likely to affect the degree of fiber entanglement in a tuft, and therefore, nep formation, are 1.…
Technology of Yarn Spinning 5 min read
THE IMPORTANT FIBER CHARACTERISTICS AND PROPERTIES FOR YARN PRODUCTION
If we consider the points made earlier about what constitutes a yarn, we can make reasonable deductions as to what…
Technology of Yarn Spinning 3 min read
PRINCIPLES OF YARN PRODUCTION
It can be reasoned that to obtain a high degree of fiber parallelism in a yarn, the fibers must be…
Technology of Yarn Spinning 4 min read
DIMENSIONS OF A YARN
Straightening the yarn length to measure the diameter involves tensioning the yarn, which also narrows the cross section by bringing…
Technology of Yarn Spinning 2 min read
Assumptions and Geometrical Relations for Helix Yarn Model
We must consider several important limitations to the basic model. • Many fibers do not have circular cross sections. Furthermore,…
Technology of Yarn Spinning 2 min read
THE IMPORTANCE OF YARNS IN FABRICS
Textile fabrics cover a vast range of consumer and industrial products made from natural and synthetic fibers. Figure 1.2 illustrates…
Technology of Yarn Spinning 4 min read
Fundamentals of Yarns and Yarn Production
Man’s cultural history goes back about 10,000 to 12,000 years, when some tribes changed from being nomadic forager-hunters, who followed…
Technology of Yarn Spinning 2 min read
Twist distribution in spun yarns
If someone twists your head, it is your neck that suffers most. That is because the neck is a ‘thin’…
Technology of Yarn Spinning 3 min read
Effect of twist level on yarn strength
The level of twist is usually expressed in number of turns per metre (tpm). Number of turns per inch or…
Technology of Yarn Spinning 3 min read
Yarn twisting methods
Twist is the number of turns per unit length (cm, m or inch). In the manufacture of staple fibre yarns,…
Technology of Yarn Spinning 2 min read
Yarn count and moisture content
Regardless of the yarn count system used, it is necessary to measure the weight and length of a yarn in…
