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