CHARACTERISTICS OF NON-WOVEN FABRIC

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Parts of Circular Knitting Machine and Their Function.

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Circular Knitting Machine: Circular knitting machine  is widely used through out the knitting industry to produce fabric. This machine can be built in almost any reasonable diameter and the small diameter of up to five, which are used for wear.  Machine for outerwear and under wear may vary from 12 inch to 60 inch in diameter according to manufactures requirement. This machine can be used either as fabric or for making garments completely with fancy stitch.  Latch needles  are commonly employed in all modern circular machines because of their simple action and also their ability to process more types of yarns.   Circular knitting machine   Important Parts of Circular Knitting Machine: C reel:  Creel is a part of a knitting machine. Hear yarn package are store and ready to feed in the machine.  Photo: Creel. VDQ Pulley:  It is a very important part of the machine. It controls the quality of the product. Altering the position of...
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Loop transfer stitches /What is Loop Transfer | Properties of the Transferred Stitch

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What is Loop Transfer?   A loop that is displaced after being formed so that it combines with an adjacent loop, or so that it appears in a different wale, is said to have been transferred.  Loop transfer is done to achieve shaping, produce a design, or change the stitch structure. Transferring is used to generate holes in the fabric to form lace-like effects. Transferring can be used to produce structural effects by inclining wales of both plain and rib fabrics. This is also used to produce cables by exchanging two or more groups of wales with one another.  Properties and uses of the Transferred Stitch : Loop transfer is widely used in flat knitting for various reasons, some of which are described below:  1. Changing from rib to plain:  Often, garments are produced with a rib welt, which provides elastic properties, and then continues as a plain construction to reduce thickness and weight. In these cases, all the loops participating in the production of...
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Robbing Back

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Robbing Back: Knapton and Munden suggested the phenomenon of ' robbing back ' to be the reason why the measured  loop length  in a  knitted structure  is smaller than the theoretical loop length when calculated from the depth of the  stitch cam setting , as well as the reason for fluctuations in input tension producing large variations in loop length. As the needles descend the stitch cam, the tension required to pull yarn from the package increases rapidly and it becomes easier to rob back yarn in the opposite direction from the already-formed loops of needles further back that are then beginning to rise from their lowest (knock-over) position. With reference to Fig. 22.3, it was suggested that, under the dynamic conditions of loop formation, yarn tension increases (according to Amontons' Law of Friction) as it passes over the  knitting  elements from point A. Robbing back occurs from needles on the other side of the stitch cam. The lowest point of...
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