Stitch Types Name : MAZADUL HASAN SHESHIR ID: 2010000400008 Batch: 13th Batch (Session 2009-2013) Department: Wet Processing Technology Email: mazadulhasan@yahoo.com (FB) Blog: www. Textilelab.blogspot.com Southeast University,Bangladesh Department of Textile Engineering PREPARED BY ©right Stitch Types Lockstitch Chainstitch Oscillating shuttle Rotary hook * Domestic * Industrial Rotary looper Oscillating looper * Button Stitching * 2T- chain Overlock Coverseam Stitch Type 301 N B Lockstitch Lock Stitch  Lockstitch, has a needle thread and a bobbin thread.  Stitch is formed by a needle thread introduced from one side of the material interlacing with an under thread  The needle & under thread cross over in the middle of the fabric  Most common of the stitch types  Does not unravel easily,  Poor extention.  Stitch is reversible  Uses least amount of thread  Excellent seam security  Lower productivity  More susceptible to thread breaks  Used in wide range of end uses. Stitch Type 301 Stitch Type 304 N B ZIG ZAG ONE STEP LOCKSTITCH  Lockstitch zig zag, has a needle thread and a bobbin thread.  Has same benefits as 301 viz:  security of seam  reversibility  wont unravel easy  Has better extension due to the zig zag configuration.  Used mostly on lingerie , foundation wear and underwear, where a secure seam with good extension is required. Stitch Type 304 Stitch Type 304 ZIG ZAG ONE STEP LOCKSTITCH Stitch Type 401 N L Two Thread Chain Stitch [...]... loop is interconnected with two loops of one underthread  The needle & underthreads cross over on the underside of the fabric  Higher seam strength and seam stretch than a lock stitch  Higher productivity  Seam runback (unraveling) is a big problem  Seam security not as good as lock stitch  Increased bulk under the seam  Used for joining trouser panels, riser seams and felled seams in jeans  Stitch... stitch types in one, 504 and 401 Good extention, very strong If one fails the other can absorb the strain  Used for  joining panels where seam stretch is critical  or joining seams where security of seam is important Jeans (inside legs) side seams and sleeves on shirts, overalls etc   High seam elasticity Stitch Type 516 5 Thread Overlock (2 needle & 3 Looper Threads) Stitch Type 602 Cover Seam. .. together  However this is not a tight stitch and seam security could be a problem  Bulky seams  Stitch Type 504 3 Thread Overlock (1 needle & 2 Looper Threads) Stitch Type 512 4 Thread Overlock (2 needle & 2 Looper Threads) N1 N2 L1 L2 Stitch Type 512 Mock safety stitch, has 2 needle and 2 looper threads  Very good extension, will not unravel easy  Side seams, join panels, attach sleeves, join shoulders... Cover Seam Stitch (2 Needle & 1 Looper Thread) N1 N2 L Stitch Type 406 Cover seam stitch, has 2 needle and 1 looper thread  Excellent extention, easy to unravel  Used for :  T shirts/knits sleeves and bottom hems  stitching of belt loops in jeans & trousers  Gives very good extension, and is mostly used to cover a raw edge in the fabric after the fabric has been hemmed etc  Stitch Type 406 Cover Seam. .. good extension, will not unravel easy  Side seams, join panels, attach sleeves, join shoulders etc on knitted fabrics, tee shirts, polos  Side seams, join panels, etc on swimwear and on aerobic wear, cycle pants etc  Where there is a need for a secure seam that needs very good extension  512 is more secure than 504 (3 thread overlock) but less secure than 516 (5 thread safety stitch)  Stitch Type... used to cover a raw edge in the fabric after the fabric has been hemmed etc  Stitch Type 406 Cover Seam Stitch (2 Needle & 1 Looper Thread) Stitch Type 407 Cover Seam Stitch (3 Needle & 1 Looper Thread) N1 N2 N3 L Stitch Type 407 Cover Seam Stitch (3 Needle & 1 Looper Thread) Stitch Type 504 3 Thread Overlock (1 needle & 2 Looper Threads) N L1 L2 3 Thread Overlock (1 needle & 2 Looper Threads) Stitch... cover seam stitch, has 2 needle, 1 looper and 1 spreader thread  Used :  as a stitch to cover the joint between binding and the garment (necks of knitts) as a decorative stitch on night gowns & sweat shirts for stitching legs of aerobic wear and straps on swimwear to stitch/attach binding to knitted night gowns Sweat shirts etc Has excellent extension, when a small stitch is used excellent seam. .. wear and straps on swimwear to stitch/attach binding to knitted night gowns Sweat shirts etc Has excellent extension, when a small stitch is used excellent seam cover is achieved  Stitch Type 602 Cover Seam Stitch, Top and Bottom (2 Needle, 1 Looper and 1 Spreader Thread) . productivity  Seam runback (unraveling) is a big problem  Seam security not as good as lock stitch  Increased bulk under the seam  Used for joining trouser panels, riser seams and felled seams. thread loop is interconnected with two loops of one underthread  The needle & underthreads cross over on the underside of the fabric  Higher seam strength and seam stretch than a lock. of seam  reversibility  wont unravel easy  Has better extension due to the zig zag configuration.  Used mostly on lingerie , foundation wear and underwear, where a secure seam with