Parts of sewing machine needle

Basic Skills-
To use Industrial machinery efficiently, you should be able to select and set a needle; adjust the stitch length regulator, pressure regulator, and knee lift; Identify balanced tension and adjust as needed; and select appropriate thread.

1. Parts of Sewing Machine Needle By Introcanvas https://introcanvas.wordpress.com/ https://twitter.com/introcanvas https://fb.com/introcanvas

2. Objective By the end of this session we would be able to understand Selection of needles Part of the machine needles and standard needles Needle size and their relevance to the type of fabric and design

3. Selection of Needles © All Rights Reserved 3 Basic Skills To use Industrial machinery efficiently, you should be able to select and set a needle; adjust the stitch length regulator, pressure regulator, and knee lift; Identify balanced tension and adjust as needed; and select appropriate thread. Setting the Needle In the apparel industry, there are literally thousands of different machines, each requiring a different needle type. On most newer machines, the needle type for that particular machine is identified on the machine head. However, each needle manufacturer identified its needles in a different way; the needles for the same type of system may have several different names or numbers, depending on the manufacturer.

4. Directions © All Rights Reserved 4 Begin with the power switch off. Hand wheel until the needle moves machines; you will turn the counterclockwise - the direction operating. Use a screwdriver or Allen wrench to loosen the screw in the needle bar just enough to release the needle. Changing the needle Remove the needle from the needle bar. If the needle is broken, remove any broken parts that may have dropped into the machine. If part of the shank remains in the needle bar after the screw is loosened, tap the needle bar with the handle of the screwdriver. If it still does not Fall out, turn the machine on, raise the presser foot, and stitch slowly until the vibration causes the needle to drop out.

5. Directions © All Rights Reserved 5 Dispose of the needle safely. Note To make a safe container for disposing needles; punch a small hole in the top of a discarded film container. Check the new needle for straightness by rolling it on the machine table. If the needle is straight, the blade of the needle will remain parallel to the table surface when it is rolled. Check the needle point for burrs by running your fingertip over the point. To check the needle and thread compatibility, thread the needle with a short length of thread. Hold the thread taut at each end in vertical position. The needle should spin slowly dawn and around the thread. If It slides slowly down and around the thread. If it slides too quickly or does not slide at all, try a different size needle or select another thread.

6. Directions © All Rights Reserved 6 Use your thumbnail to locate the long groove on the needle. This will help you to set the needle correctly. Hold the new needle between your right thumb and forefinger at the base of the shank where the groove begins. Locate the last thread guide on the needle bar. On straight-stitch machines, the guide is generally to the left of the needle. Insert the needle into the needle bar so that the groove is facing the side with the last thread guide (left) and the eye is in line with the arm of the machine. Check to be sure the needle is inserted into the needle bar as high as possible. Tighten the needle bar screw. Tighten the machine and stitch slowly. If the needle is positioned correctly, there will be no skipped stitches and no unexpected noises. If it is not set properly, remove the needle and reset it.

7. Part of The Machine Needles © All Rights Reserved 7 Butt: A small pyramid at the upper end of the shank. It is designed to make a single-point contact with the hole in the needle bar. Shank: The upper end of the needle that is held in the needle bar by the needle screw. The shank is usually round, but it can have one or two flat sizes. Designed to support and stabilize the needle blade, the diameter of the shank is usually larger than the diameter of the blade. Shoulder: The beginning of the shank just above the needle blade. Blade: The thin section of the needle that extends from the shank to the eye. It is easily bent and should be examined for straightness periodically.

8. Part of The Machine Needles © All Rights Reserved 8 Scarf (needle scarf, clearance above the eye, clearance cut, or spot): A small indentation above the eye that permits the hook or looper to pick up the thread loop. On some needles, the scarf is elongated and/or deeper to ensure that the needle thread loop will be large enough to prevent skip stitching. Land: A small hump on the blade immediately above the eye. Used instead of a scarf, its purpose is to enable the needle thread to make a larger loop and form a stitch. Eye: An opening in the needle blade at the lower end of the long groove that carries the thread into the material to the hook or looper to make a stitch. The size of the eye is proportional to the diameter of the blade.

9. Part of The Machine Needles © All Rights Reserved 9 Point: The tapered end. It is often considered the most critical aspect of the needle. The most common needles have a round point, a ballpoint, or a cutting point. Generally round points and ballpoints’ are used for woven and knit fabrics because they can penetrate the fabric by spreading the fibers or deflecting the yarns without damaging them. By contrast, needles with cutting points are used for leather. Tip: The part of the needle that pierces the material. Needle groove (long groove): A g channel on the black it is located on the side on which the need dread enters the eye a provides a Protective guide for the thread when the needle is rising and the needle- thread loop is enlarging.

10. Standard Needles Universal needle © All Rights Reserved 10 Uses: Safest needle choice for most fabrics. Configuration: Has slightly rounded point and elongated scarf to enable almost foolproof meeting of needle and bobbin hook. Troubleshooting: When fabric is not medium-weight woven, consider needle specifically suited to fabric. For example, size 18 universal needle works on heavy denim, but size 18 jeans needle works better.

11. Standard Needles Ballpoint and stretch needles © All Rights Reserved 11 Uses: Ballpoint needle for heavier, looser sweater knits; stretch needle for highly elastic fabrics, like Spandex, or Lycra. Configuration: Both have rounded points that penetrate between fabric threads rather than pierce them. (Stretch-needle point is slightly less rounded than ballpoint.) Troubleshooting: Test-stitch knits with ballpoint, stretch, and universal needles to see which doesn't cut yarn and yields best results. If ballpoint skips stitches, try stretch needle.

12. Standard Needles Microtex and sharp needles © All Rights Reserved 12 Uses: Sewing microfiber, silk, synthetic leather; precisely stitching edges; and heirloom sewing. Configuration: Has an acute point. Troubleshooting: Essentially trouble-free, but fabric may require a Teflon, roller, or even/dual-feed presser foot.

13. Standard Needles Leather needle © All Rights Reserved 13 Uses: Excellent for sewing natural leather. Configuration: Has slight cutting point (almost like an arrowhead). Troubleshooting: On synthetic leather, unless it's very heavy synthetic, cuts rather than pierces stitch hole and can tear leather. Most synthetic leathers require Microtex or sharp needle.

14. Standard Needles Hemstitch (wing) needle © All Rights Reserved 14 Uses: Hemstitching or heirloom embroidery on linen and batiste. Configuration: Has fins on sides of shank to create holes as you sew. Troubleshooting: Stitch is more effective when needle returns to same needle hole more than once. If needle pushes fabric into needle hole, put stabilizer under fabric.

15. Needle Size and Relevance of Type of the Material To Be Stitched © All Rights Reserved 15

16. Classification of Needle According To Point © All Rights Reserved 16 Normal round point needle They are used for woven materials etc Example; DB X 1 Light ball point needles They are used for thin material, silk etc., & button hole sewing. Example: DP x Si Medium ball point needles They are used for hosiery material etc., Example: IJY 128 GAS Heavy ball point needles They are used for sewing heavy weight materials like rubber etc. Stub point needles They are used for sewing buttons.

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