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Introduction 

Although
the new spinning technologies have solved the problem of production and
automation to a greater extent, the ring spinning still dominates over
others and is likely to continue as a most widely used form of spinning,
because it exhibits significant advantages in terms of yarn strength
and flexibility in comparison with the new spinning processes.
Increasing ring spindle speed with the existing machines in
consideration of yarn quality and running performance is…



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Yarns Required for Knitting:

The main raw material for Knitting process is Yarn. So its quality should be standardized. The quality of yarn should be like as follows :

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Yarn Twist:

In the manufacture of staple fibre yarns, twist is inserted into the fine strand of fibres to hold the fibres together and impart the desired properties to the twisted yarns. Without twist, the fine strand of fibres would be very weak and of little practical use. A change in the level of twist also changes many yarn properties, such as strength and softness.

Definition:
Twist may be defined as the spiral disposition of the components of a thread which is usually the result of…



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Fancy Yarn:

Yarn refers to a structure composed of continuous length of interlocked fibers. They are suitable for use in the production of textiles, sewing, crocheting, knitting, weaving, embroidery and rope making. However, fancy yarn deviates from the normal yarns. These deviations occur mainly due to introduction of deliberate decorative discontinuities in the form of colour, structure or both. The size and value of the market for fancy yarn is negligible. However, fancy yarns appear mainly…



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Melange Yarn:

Melange yarn is a blend of different colored fibers to develop various shades in the yarn. Different in ratio of fibers in the blend alters the uniqueness of spun melange yarn.

Definition:

Melange yarn may be defined as “the yarn produced by the combination of at least two or more than two fibers”. Conventionally, the term melange is used for such yarns which are produced by the combination of two fibers (whether of same type but different in color or type of…



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Introduction:

If we want to know anything, firstly we should to know about the history. If we know the history then attraction on those things will increase. In this review we will discuss the history of the yarn spinning and Classification of spinning techniques. Why conventional spinning has converted into modern or advance spinning? In conventional spinning process, production would be very less, higher wastage, unhealthy, environmental inappropriate and overall cost would be high. So, for…



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Common Steps Involved in Warp Preparation: The object of warp preparation is to transfer yarn from the spinner’s package to a weaver’s beam that can be placed behind a loom ready for weaving. A weaver’s beam usually contains several thousand ends and for a variety of reasons, it can seldom be made in one operation. It is usual to divide the warp preparation process onto four sections:

Warp preparation
1. Warp Winding: The main functions of warp winding are to rewind the yarns from the…



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Defects present in yarn can be classified in to five categories:

1) Count Variation: Variation in diameter along the length of yarn beyond acceptable range.

2) Unevenness or Irregularity: It is mass variation per unit length (cm). This fault is expressed as U% or CV% and evenness tester is used to measure it.

3) Frequently Occurring Faults: These are the faults that occur in range of the 10 to 5000 times per 1000 m of yarn. Yarns spun from staple fibers contain…



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Yarn Hairiness Yarn hairiness is in most circumstances an undesirable property, giving rise to problems in fabric production. Therefore it is important to be able to measure it in order to control it. However, it is not possible to representhairiness with a single parameter because the number of hairs and the length of hairs both vary independently. Theoretically a yarn may have a small number of long hairs or a large number of short hairs or indeed any combination in between. The problem is…



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