Needle Loop & Sinker Loop
- 2. PRIMEASIA UNIVERSITY PRESENTATION DAY / /2012 PREPARED BY Amirul Eahsan ID: 112-015-041 SECTION:A1 PRESENTATION ON-NEEDLE LOOP AND SINKER LOOP
- 3. Loop:
- 4. Needle loop: The needle loop include a head and two side limbs . The upper part of the loop produce by the needle drawing the yarn is called as needle loop. Needle loop formed by the top arc and the two legs of the weft knitted loop. So we can say, Needle loop = Top arc + Two legs
- 5. There are three types of needle we use in needle loop. They are The most used needle among them is the Latch needle. We can see a diagram of Latch needle below,
- 7. Sinker loop: The lower part of the knitted loop is technically referred as sinker loop. It is the connection of tow legs belonging to the neighboring stitches lying laterally. The yarn portion that connects two adjacent needle lops belonging in the same knitted course. Bottom arc also called sinker loop.
- 8. Sinker Sinker is a thin metal plate with action at right angles to and fro between adjoining needles. It may perform one or more of the following functions: 1. Loop formation 2. Holding down, and 3. Knocking over.
- 9. Fig: Different parts of a sinker
- 10. Sinkers Operation 1. The held loop is positioned in the throat of the sinker when the sinker moves forward and the needle moves upward for clearing. The held loop is held by the throat and hence its movement along the needle is restricted. 2. The sinker remains at its forward position when the needle attains its clearing position.
- 11. 3. The sinker retracts when the needle comes down after feeding. At this stage, due to sinkers retraction, fabric or held loop is eased out. Also the sinker belly supported the fabric or held loop and hence its movements along the needle is prevented. 4. Sinker remains in backward position and the needle descends to its lowest position drawing the new loop through the old one.
- 12. 5. Before the needle ascends, the sinker moves forward to push the knitted fabric a little and to hold the old loop away from the head of the needle and to be in a position to control the fabric. So we can see, The main object of a sinker is to assist the needles in loop formation by sinking or knitting the newly laid yarns into a loop. As its forward edges of catch advantages between the two adjoining needles. This is only for bearded needle where as in case of latch needles and warp knitting loop formation is not the function of sinkers.
- 13. It also holds down the loops at a lower level of the needle stems and prevents the old loops from being lifted as the needles raise to clear them for their hooks. The third function is a knocking over at which the needle passes through the old loop by drawing a new loop. We can understand the function of sinker more clearly by this following diagram,
- 15. Now we can differentiate the needle loop and sinker loop through the figure shown in below,
- 16. Both needle loop and sinker loop has great importance in the field of knitting technology. And to know more about knitting we must have a clear idea about these two vital concept.
- 17. Thank You all…