Knitting and type of knitting

Knitting, type of knitting, Interweaving, Intertwining, Interlooping, knitting machine, knitting machine feature

There are three principal methods of mechanically manipulating yam into textile fabrics: interweaving intertwining and interloping

knitting


1.Interweaving is the intersection of two sets of straight threads, warp, and weft, which cross and interweave at right angles to cache other Weaving is by far the oldest and the most common method of producing continuous lengths of straight-edged fabric.

2. Intertwining and twisting includes a number of techniques, such as braiding and knotting, where threads are caused to intertwine with each other at right angles or some other angle.

3. Interlooping consists of forming yarn(s) into loops, each of which is typically only released after a succeeding loop has been formed and intermeshed with it so that a secure ground loop structure is achieved. The loops are also held together by the yarn passing from one to the next.

Knitted structures are progressively built-up from row after row of intermeshed loops. The newly-fed yarn is converted into a new loop in each needle hook. The needle then draws the new loop headfirst through the old (fabric) loop, which it has retained from the previous knitting cycle 



Knitted structures are progressively built-up from row after row of intermeshed loops. The newly-fed yarn is converted into a new loop in each needle hook. The needle then draws the new loop headfirst through the old (fabric) loop, which it has retained from the previous knitting cycle


 CLASSIFICATION OF KNITTING

Knitting is primarily classified as weft knitting and warp knitting.

 weft knitting

This classification is based on the direction of movement of yam with respect to the direction of fabric formation If the yarns run-in the width or crosswise direction with reference to the direction of the fabric formation during knitting, then the process of knitting is called the weft knitting. The yams in the knitted structure are just like weft yams in woven fabrics. Such structures are called weft-knitted fabrics or jersey fabrics, and the machines m which such structures are produced are called weft knitting machines.

warp knitting

In case the yams run in length direction, i.e. the direction of fabric formation during knitting, the process is called warp knitting The yarns inside the knitted fabrics are just like the warp yams in woven fabric Such knitted fabrics are called warp knitted fabrics, and the machine which produces such fabne known as warp knitting machine. Direction of movement of yarn in weft and warp knitting is shown figures. Till date, most of the fabrics we use in our daily life as apparel belong to weft knitting, and hence to knitting learners knitting means weft knitting 


THE MAIN FEATURES OF THE KNITTING MACHINE

 A knitting machine is thus an apparatus for applying mechanical movement, either hand or power derived, primary knitting elements, in order to convert yam into knitted loop structures The main features of a knitting machine are as follows

1.The fame or carcass, normally free standing and either circular or rectilinear according to needle bed shape, provides the support for the majority of the machine's mechanisms

2. The machine control and drive system co-ordinates the power for the drive of the devices and mechanisms.

3 The yam supply consists of the yarn package or beam accommodation, tensioning devices, yarn feed control and yarn feed carriers or guides

4. The knitting system includes the knitting elements. their housing, drive and control. as well as associated pattern selection and garment-length control device (if equipped)

5. The fabric take-away mechanism includes fabric tensioning, wind-up and accommodation devices . The quality control system includes stop motions, fault detectors, automatic oilers and lint removal systems. 



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