Class 200: is a hand stitch type, is formed by single thread passed from one side of the material to the other in successive needle penetrations.. Class 300:is a lock stitch type, is for
Trang 1Stitch
Trang 2Prepared By : Mazadul Hasan sheshir ID: 2010000400008
13th Batch (session 2009-2013) Department : Wet Processing Technology Email: mazadulhasan@yahoo.com Blog : www Textilelab.blogspot.com (visit)
Southeast University Department Of Textile Engineering I/A 251,252 Tejgaon Dhaka Bangladesh
Prepared By :
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Trang 3Stitch is a Unit or Loop in a seam Which is produced by three principle Inter looping, Intra looping, Inter lacing
Inter looping : Loop of one thread passes through the loop of another thread
Intra looping : Loop of one thread passes through the loop of same thread
Inter Lacing: One thread passes over another thread
Stitch:
Trang 5Textile stitch types-classification and terminology, stitches are catalogued into six classes (as per BS3870/ASTM D-6193/ISO 4915:1991) The international and standardization uses the identical numbering.
Stitch quality
Stitch quality is measured with stitch size (stitch length, width, and depth) tension, sequence, elongation, elasticity, resilience, fabric distortion, yarn severance, abrasive strength
Class 100:
is chain stitch type, is formed with one or more needle threads introduced from one side of the material only
chain stitch is elastic and thicker than lockstitch and can easily be ravelled;
particular care is required to prevent runback from the last stitch
Used for temporary stitching or for Blind stitching
Class 200:
is a hand stitch type, is formed by single thread passed from one side of the material to the other in successive needle penetrations
a slow process and need huge manpower to finish bulk order
Used for handwork
Stitch types of designation
Trang 6Class 300:
is a lock stitch type, is formed by a needle thread or threads, introduced from one side of the material, interlacing with an under thread
supplied from a bobbin on the other side
low bulk and thin, good strength and abrasion resistance
Poor elasticity, non ravel
limited sewing length, need to replace bobbin thread
for seams requiring stretch
Class 400:
is multi thread chain stitch type, is formed with two/more groups of threads having general characteristic of interlacing interloping of the loops of the two groups
non ravel, strong, good elasticity, less likely to cause seam pucker due to structural jamming
good seam stretch
does not need to wind bobbin
lower resistance to runback and have increased bulk under the seam
Trang 7Class 500:
is over lock over edge stitch type, is formed with one or more needles and/or loopier threads with at least one thread passing round the edge
of the material being sewn
Excellent stretchable good recovery
Seam or edge neatening
suitable for many types of fabric
subject to fraying or slippage
Class 600:
is formed with two or more groups of threads, has for a general characteristic that two groups of thread cover surfaces of the material
High elasticity, seam neatening and Flat seam stitch, Bulk, Fast machine speed
No need of Bobbin
Greater thread consumption
Covering stitches for decorative purpose, Can be used to join two raw edges, suitable for knitted garments
Stitch types of designation
Trang 8Types of Stitch:
1 Stitch Class- 100 (Single thread chain stitch).
2 Stitch Class- 200 (Hand Stitch).
3 Stitch Class- 300 (Lock Stitch).
4 Stitch Class- 400 (Multi thread chain stitch).
5 Stitch Class- 500 (Over lock stitch).
6 Stitch Class- 600 (Covering chain stitch).
Types of Stitch:
Trang 9Stitch Class-100(Single thread chain stitch):
1. In this stitch -one loop passing through another loop of same thread
2. Security of this seam is poor/not satisfactory
3. Only one needle thread is used for making this stitch
4. It is also used blind stitch purpose
Subclass:
Stitch Class 103 (Blind Stitch); use in Heming
Stitch Class 103 (Blind Stitch); use in Heming
Usages:
Hemming, button attaching, button holing, gathering and temporary positioning of garment component and purpose
Stitch Class-100 (Single thread chain stitch):
Trang 10Sub-Classes: Stitch Class-100
Sub-Class - 101:
Uses: It is used for blasting (temporary stitching) e.g Blazer components joining before final sewing to cooperate sewing.
Sub-Class -103: Blind Stitch.
Feature:
One side is invisible and other side is like chain
Use: Bottom hemming of dress pants.
Trang 11Stitch Class-200(Hand Stitch):
This stitch is produced for longer length sewing
Use for costly garments
Need more time and skilled operator
Sub-Classes:
Sub-Class- 202: This type of stitch is formed by hand
Sub-Class- 209: This type of stitch is formed by “Pique Stitch Machine’’
Uses: Lapel of Blazer, collar of shirt, saddle stitch etc
Saddle Stitch: A special type of stitch which is formed by Pique Stitch Machine using Thick thread It is used in Cowboy Jeans
Stitch Class-200 (Hand Stitch)
Trang 12Stitch Class-200 (Hand Stitch)
This type of stitch is formed with one thread It is a machine made version of traditional hand stitching sometimes referred to as Saddle Stitch.
Trang 13Stitch Class-300(Lock Stitch):
1. Both Sides are same
Lock stitch is extensively used for joining fabrics collar, cuff, pocket, facing etc Top stitching is used for button holing, attaching, blind stitching etc
Stitch Class-300 ( Lock Stitch):
Subclass: 301, 304.
Trang 14Sub-Classes : Stitch Class-300
Trang 15This type of stitch is formed with two threads: one needle thread (A) and one bobbin thread (B) A loop of thread (A) is passed through the material and interlaced with thread (B) Thread (A) is then pulled back so that the interlacing is midway between surfaces of the material or materials being sewn Ideally, this stitch should have a 1 : 1 ratio of needle to bobbin thread.
The 304 stitch formation is commonly referred to as the Zig-Zag Lockstitch To produce the zig-zag appearance, the needle bar moves laterally as the material is fed This type of stitch is formed with two threads: one needle thread (A) and one bobbin thread (B) A loop of thread (A) is passed through the material and interlaced with thread (B) Thread (A) is then pulled back so that the interlacing is midway between surfaces of the material or materials being sewn Ideally, this stitch should have a 1 : 1 ratio of needle to bobbin thread
Sub-Classes : Stitch Class-300
Trang 16Stitch Class- 400(Multithread chain stitch):
1. Security is higher than lock stitch
2. One or more thread is used
3. One group is called upper thread and another group is called looper thread (under thread)
4. Higher production than lock stitch due to use large package
5. It is widely use for making knitted garments
Hemming: Hem is the end of the garment and the process of making hem is called hemming
Stitch Class- 400 (Multithread chain stitch)
Trang 17Stitch Class- 400 (Multithread chain stitch)
Subclass:
401(1n+1l); Use in Jens
406(2n+2l); Use in T-Shirt (Heming) (Flat Lock)
407(3n+1l) Use in Brief’s (Flat Lock)
Usages:
This type of stitches is used foe sewing lace, braid and elastic Stitch type-401 is used in jeans and trouser
Trang 18Sub-Classes : Stitch Class- 400
Trang 19Sub-Classes : Stitch Class- 400
This type of stitch is formed with two threads: one needle thread (A) and one looper thread (B) Loops of thread (A) are passed through the material and interlaced and interlooped with loops of thread (B) These interloopings are drawn up against the underside of the bottom ply of the material being sewn
The 404 stitch formation is commonly referred to as the Zig-Zag Chainstitch Its formation is similar to the 401stitch To produce the zig-zag appearance, the needle bar moves laterally as the material is fed This type of stitch is formed with two threads: one needle thread (A) and one looper thread (B) Loops of thread (A) are passed through the material and interlaced and interlooped with loops of thread (B) These interloopings are drawn up against the underside of the bottom ply of the material being sewn
Trang 20Sub-Classes : Stitch Class- 400
This type of stitch is formed with three threads: two needle threads (A & A1) and one looper thread (B) Loops of the needle threads (A & A1) are passed through the material and interlaced and interlooped with loops of thread (B) These interloopings are then drawn against the underside of the material being sewn
This type of stitch is formed with fourthreads: three needle threads (A, A1 & A2) and one looper thread (B) Loops of the needle threads (A, A1 & A2) are passed through the material and interlaced and interlooped with loops of thread (B) These interloopings are then drawn against the underside of the material being sewn
Trang 21Sub-Classes : Stitch Class- 400
This type of stitch is formed using five threads; two needle threads (A & A1), two looper threads (B & B1) and one Top covering thread (C) This stitch is two rows
of 401 two thread chainstitch with a top covering thread laid on the upper surface of the material being sewn
Loops of the threads (A & A1) are passed through the material and interlaced and interlooped with loops of threads (B & B1) The top covering thread (C) is laid between and around the needle threads on the surface of
the material The interloopings of the neeedle and looper threads are drawn up against the underside of the bottom ply of the material being sewn
Trang 22Stitch Class- 500(Over Lock Stitch):
1. To prevent fraying out of loss yarn
2. Use to make knitted garments
3. Also use for decorative purpose
Subclass:
British Standard:
503(1n+1l); Use for edging
504(1n+2l); Use for edging & light seaming
514(2n+2l); Use edging & Heavy seaming
American Standard: Combination Stitch
515(401 + 503); Use for edging & sewing
516(401 + 504); Use for edging & sewing
Usages: This stitch type can be used to make a decorative edge
Stitch Class- 500 (Over Lock Stitch)
Trang 23Uses: For edging & heavy seaming
Sub-Classes : Stitch Class- 500
Trang 24Sub-Classes : Stitch Class- 500
This type of stitch is formed with two threads: one needle thread (A) and one looper thread (B) Loops of the needle thread (A) are passed through the material and brought to the edge where they are interlooped with thread (B) The loops of thread (B) are extended from this interlooping to the point of needle penetration of the next stitch and there are interlooped with thread (A)
This type of stitch is formed with three threads: one needle thread (A), one lower looper thread (B), and one upper looper thread (C) Loops of the needle thread (A) are passed through the material and
interlooped with loops of thread (B) at the point of penetration on the underside of the material
The loops of thread (B) are extended to the edge of the material and there interlooped with loops of the upper looper thread (C)
Trang 25Sub-Classes : Stitch Class- 500
This type of stitch is formed with three threads: one needle thread (A), one lower looper thread (B), and one upper looper thread (C) Loops of the needle thread (A) are passed through the material and interlooped with loops of thread (B) at the point of penetration on the underside of the material
The loops of thread (B) are extended to the edge of the material and there interlooped with loops of the upper looper thread (C) Loops of thread (C) are extended from this interlooping point of the needle penetration of the next stitch and there, they are interlooped with thread (A)
Stitch type 505 is very similar to stitch type 504 The main difference is that in stitch type 505 the lower looper thread (B) Is tighter and the needle thread (A)
is looser than in stitch type 504 Stitch type 505 is a three thread version of stitch type 503
Trang 26Sub-Classes : Stitch Class- 500
This type of stitch is formed with four threads: two needle threads (A & A1) a lower looper thread (B) and an upper looper thread (C) Loops of the needle threads (A & a1) are passed through the material and interlooped with loops of thread (B) at the point of penetration on the underside of the material
The loops of thread (B) are extended to the edge of the material and there interlooped with loops of thread (C) Loops of thread (C) are extended from this interlooping point of the needle penetration of the next stitch and there, interlooped with thread (A)
This type of stitch is formed with four threads: two needle threads (A & A1) a lower looper thread (B) and an upper looper thread (C) Loops of the needle threads (A & a1) are passed through the material and interlooped with loops of thread (B) at the point of penetration
on the underside of the material The loops of thread (B) are extended to the edge of the material and there interlooped with loops of thread (C)
Loops of thread (C) are extended from this interlooping point of the needle penetration of the next stitch and there, interlooped with threads (A & A1)
Trang 27Sub-Classes : Stitch Class- 500
This type of stitch is formed by simultaneously sewing one row of stitch 401, using threads (A
& B), a specified distance from the edge of the material, and one row of stitch type 503 using threads (A1 & B1) on the edge of the material
Trang 28Stitch Class-600(Covering Chain Stitch):
1. At least three (1n+2l) set of thread are use
2. This stitch is use in undergarments to attach lace, braid or elastic
3. This Stitch is also use to join side by side of fabric without increasing thickness
Subclass:
602; Use for decorative purpose
605; Use for decorative purpose
406; Use for T-Shirt/ Polo shirt heading
Usages:
This type of stitch is used for sewing under wear for attaching lace, braid elasticity
Stitch Class-600 (Covering Chain Stitch)
Trang 29Sub-Classes : Stitch Class-600
Sub-Classe-602: 2Needle + 2Looper
Use: Sleeve and bottom hem of T-shirt, Polo-shirt & decorative purpose
Sub-Classe-605: 3Needle + 2Looper
Uses: For decorative purpose & elastic attaching of under garments
Sub-Classe-606: 4Needle + 5Looper
Uses: Not used in our country
Trang 30Sub-Classes : Stitch Class-600
This type of stitch is formed with 4 threads: two needle threads (A) and (A1) ; one looper thread (B); and one cover thread (C) Loops of thread (A) and (A1) are passed through loops of thread (C) already cast on the surface of the material, and then through the material where they shall be interlooped with loops of thread (B) on the underside
This type of stitch is formed with 5 threads: three needle threads (A), (A1) & (A2) ; one looper thread (B); and one cover thread (C) Loops of thread (A), (A1) and (A2) are passed through loops of thread (C) already cast on the surface of the material, and then through the material where they shall be interlooped with loops of thread (B) on the underside
Trang 31Sub-Classes : Stitch Class-600
This type of stitch is formed with six threads: four needle threads (A), (A1), (A2), and (A3); one looper thread (B); and one cover thread (C) Loops of thread (A), (A1), (A2), and (A3) are passed through loops of thread (C) already cast on the surface of the material, and then through the material where they shall be interlooped with loops of thread (B) on the underside