mozambique kain edit 2011.ppt 12-04-2011
DESCRIPTION
TECHNOLOGY OF WEAVING PROCESSMoekarto MoelionoTECHNOLOGY OF WEAVING PROCESS 1. 2. 3. 4. 5. 6. INTRODUCTION WEAVING PREPARATION WEAVING PROCESS WEAVING DESIGN WEAVING PRODUCTION WEAVING QUALITYFABRIC TYPES Woven Fabric Constructed by Crossing or Interlacing between Warp Yarn and Weft Yarn Knitted Fabric Constructed by Looping System of Weft knit or Warp Knit Non Woven Constructed by Fiber LayersFABRIC GROUPS(Non Woven) Woven Fabrics Knitted FabricsWOVEN FABRIC Woven fabriTRANSCRIPT
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TECHNOLOGY OF WEAVING PROCESS
Moekarto Moeliono
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TECHNOLOGY OF WEAVING
PROCESS
1. INTRODUCTION
2. WEAVING PREPARATION
3. WEAVING PROCESS
4. WEAVING DESIGN
5. WEAVING PRODUCTION
6. WEAVING QUALITY
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FABRIC TYPES
Woven Fabric
Constructed by Crossing or Interlacing
between Warp Yarn and Weft Yarn
Knitted Fabric
Constructed by Looping System of Weft
knit or Warp Knit
Non Woven
Constructed by Fiber Layers
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FABRIC GROUPS
Woven Fabrics Knitted Fabrics
(Non Woven)
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WOVEN FABRIC
Woven fabric consist of crossing or interlacing between horizontal and vertical yarn
Vertical yarn to be called warp yarn
Horizontal yarn to be called weft yarn
Crossing between warp yarn and weft yarn result woven fabric
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ELEMEN T OF FABRICS
WARP
WEFT
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PROCESS OF WEAVING
1. Weaving Preparation
2. Weaving Process
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FLOW PROCESS OF WEAVING
RAW MATERIAL
WINDING WINDING
DOUBLING PIRN
TWISTING
WARPING
TYING-IN
WEAVING
WARP YARN WEFT YARN
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WEAVING PREPARATION
PURPOSE :
1. Yarn preparation involve some
process to improve the yarn’s
weaveability, so that no difficulty in the
next weaving process
2. Make a suitable winding shape and
volume according to the next process
requirement.
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WEAVING PREPARATION
Generally weaving preparation process consist of :
1. Winding
2. Doubling
3. Twisting
4. Warping
5. Drawing-in
6. Pirn Rewinding
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Twisting
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Winding
Doubling
Twisting
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YARN CONDITION
YARN QUALITY :
Yarn Count Average
Yarn Twist Average
Tenacity and Elongation
Grade
Evenness
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RAW INVENTORY
100 100 100 100 100 X X X X
X X 100 100 100 100 100 X X
X
- - - - - 2 2 2 1 1
OUTPUT
WASTE
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MATERIAL (YARN)
Yarn Count : Indirect Count (the bigger yarn’s diameter means the rawer yarn
and the smaller yarn’s count)
Type : Ne (1, 2, 3, and 4) and Nm
Ne1 20 means number of 20 hanks strands in 1
pound of mass (1 Hank = 840 yard = 768 meter and 1 pound = 453,6 gram)
Nm 50 means number of 50 meters length in 1 gram of mass
Ne1 = Yarn length (hanks)/Yarn weight (pound)
Nm = Yarn length (meter)/ Yarn weight (gram)
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THE MEANING OF HANK
• Ne1 One hank = 840 Yard
• Ne2 One hank = 300 Yard
• Ne3 One hank = 560 Yard
• Ne4 One hank = 256 Yard
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MATERIAL (YARN)
Yarn Count : Direct Count (the smaller yarn’s diameter means the smoother
yarn and the smaller yarn’s count)
Type : Tex and Td
100 Tex means number of 100 grams of mass per 1000 meters length
150 D means number of 150 grams of mass per 9000 meters in length
Tex = 1000 x weight (gram)/length (meter)
Td = 9000 x Berat (gram)/Panjang (meter)
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WINDING PROCESS
Purpose :
1. Rewinding yarns onto pirn sizes
2. Improve the quality of yarn that will be
processed, including : tenacity,
evenness, smoothness, and remove
unwell knotting
3. Repair the yarn’s winding
4. Improve production efficiency
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Winding Machine
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SCHEME OF WINDING MACHINE
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Purpose :
1. To make doubling yarn according to the
next process in need
2. Prepare yarns that will be twisted
Basically in doubling process, the machine even
the process that will be used are same with
winding process. The different is only more than
one yarn feeding.
Doubling Process
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PRODUCTION OF WINDING MACHINE
(SURFACE SPEED)
MOTOR
DRUM
3,14 X D X N
P1
T5 T3
T3
T2
T4 T1
P1
T2 X
P2
X X
X X X
P2
T4
T2
T1 T5
D
X D
X N
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TWISTING PROCESS
Twisting process is doubling some yarns and then gived certain twist
TPC : Twist per cm TPI : Twist per Inchi TPM : Twist per meter
The purpose of twisting process is to improve quality
and performance of yarns even woven fabric from those
yarns, i.e : - Twist balancing - Tenacity - Bursting strength - Fancy effect - Luster fabric - Twill effect will be more clear (for weaving design)
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Three kinds of twisting :
1. Down Twisting
2. Up Twisting
3. TFO
TWISTING
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TWISTING ANIMATION
TWISTING
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Down Twisting
Key :
1. Bobbin creel
2. Bar
3. Feeding Rol
4. Pig tail (lappet)
5. Bobbin pirn
6. Spindle
7. Thin Rol
8. Spindle tape
9. Ring Rail
10. Traveler
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Up Twisting
Key :
1. Thin Roller
2. Spindle Tape
3. Spindle
4. Bobbin
5. Pig tail
6. Traverse Guide
7. Drum
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TFO TWISTING
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THE DIRECTION OF YARN TWIST
S Z S-TWIST Z-TWIST
There are 2 (two) kinds yarn twist : S-Twist and Z-Twist
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Scheme of Twisted Yarn
Z
S
Z S S S S S
Z
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THE RELATION BETWEEN RAW MATERIAL AND TWISTED YARN
• THE LENGTH OF YARN TO BE RESULTED = 500 METRES
• TWIST CONSTRACTION = 6 %
• THE LENGTH OF YARN BEFOREHAND (BEFORE TWISTED)
= 100/100 – 6 x 500
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THE INFLUENCES TWIST DIRECTION ON FABRIC APPEARANCE
DULL BRIGHT
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SEVERAL OF FANCY YARNS
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- An operation where yarn is transferred from single
packages of yarn to an even sheet of yarn
representing hundreds of ends and then wound
onto a warp beam.
THE AIM :
TO WIND YARN ON TO THE WEAVING BEAM,
that will be installed on weaving machine with
the position yarn horizontally
WARPING PROCESS
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THE RESULT OF GOOD WARPING :
1. Warped Yarn shall be same in length
2. Position of warped yarn shall be parallel
3. Warped yarn in a weaving beam shall not too much full fill
4. Width of whole yarns in the weaving beam wider than reed width
5. Yarn length shall be longer than fabric length that will be weaved
6. Yarn surface on the beam shall be flat/ smooth
7. Cakra Beam shall not skewing
WARPING PROCESS
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Type of Warping Device
1. Hand warper
2. Sectional warping machine
3. Direct warping machine
Warping Process
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1
2
3
5 6 7 8
9
4
warping process
Scheme of Sectional Warping Machine
Key :
1. Yarn creel 6. Feeder Rol
2. Feeder Rol 7. Drum
3. Crossing Reed 8. Tension Rol
4. Warping Reed 9. Beam weaving
5. Warping Length Counter
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Warping Process
Direct Warper Machine
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Yarns in a weaving beam before
weaved needs drawing-in process
Drawing-in process including this
following process :
- Draws all the warp ends through the drop
wires
- Draws all the warp ends through the healds
- Draws all the warp ends through reed
According to the weaving design
DRAWING-IN PROCESS
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TYING - IN TOOLS
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TYEING – IN PROCESS
When mass producing the same fabric by simply
typing each end of a new beam to its
corresponding end of the old beam
TYEING – IN ON HARNESS WITH HAND
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Tyeing - in machine
Tyeing-in process
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WARP KNOTTING
HAND
TOOLS
PORTABLE
ELEMENT
MACHINE
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KNOTED YARN WITH HAND
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KNOTTED YARN WITH SPECIAL TOOL
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Purpose :
To rewind the yarns from hanks, cone
or cylinder shapes onto weft bobbin
shape or pirn
PIRN WINDING PROCESS
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Attention to the following tips:
1. The longer yarn winding in the pirn is
better to increase efficiency
2. Choose the right type of pirn according
to the shuttle in used
PIRN WINDING PROCESS
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Winding Position
PIRN WINDING PROCESS
Beginning traverse Ending traverse
Winding surface
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WEAVING PROCESS DEFINITION :
Weaving is the making of woven fabric which being carried by interlacing warp yarn and weft yarn.
Weaving principle:
1. Shedding motion, rising and lowering the warp yarns
1. Weft insertion, insert weft yarn in to warp yarn
3. Beating motion, beat the weft yarn, enclose the weft yarn
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SAMPLE-ANIMATION CONVENTIONAL WEAVING
Bill-Creation-Loom.flv
ANIMATION
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THE PRINCIPE OF WEAVING
PRIMARY MOTIONS
&
SECONDARY MOTIONS
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PRIMARY MOTIONS
Shedding Motion
Picking Motion
Beating Motion
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(Process of Shedding Motion)
ROL
DOBBY
JACQUARD
(Mech. and Elect.)
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THE SHAPE OF SHEDDING
UPPER SHAPE
LOWER
SIMETRICALLY
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Picking Motion
SHUTTLE
(SHUTTLELESS)
NON MACHINE AND
MACHINE
MACHINE
: GRIPPER
RAPIER (FLEXIBLE DAN RIGID)
PROJECTILE
AIR JET LOOM
WATER JET LOOM
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The Position of Beating Motion
CLOSED
OPENED
CROSSED
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Secondary Motion
Let - off Motion
Take - up Motion
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PART OF WEAVING SHUTTLE
Key :
1. Warp Beam
2. Cloth Beam
3. Shaft
4. Harness
5. Roller
6. Threadling
7. Beater
8. Beater shaft
9. Warp Yarn
10.Fabric
11. Shuttle
1
5
4
3
2
6
7
8
9 10
11
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DRAWING SYSTEM
• MANUAL
• SOFTWARE (WEAVE DESIGN, WEAVE POINT, DB-DESIGN, NED-GRAF ETC)
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WARP EFECT (WITH ROLLER – THREADLING)
1 2
1
2
1
2 3
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PRACTICE
ONE ROLLER SYSTEM
THREADLING
DIRECT
THREADLING
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THE WAY TO PLAN AND DRAW WEAVING DESIGN
AMERICA
SWISS
GERMANY
SCANDINAVIA
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AMERICAN SYSTEM
A. Weave
B. Drawing-in
C. Threadling D. Threading
A
B
C
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GERMANY - SWISS
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SCANDINAVIA
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CHASMERE-TWILL
• A. Weave
• B. Drawing-in, 1, 3, 2, 4
• C. Threadling, 1, 4, 2, 3
• D. Threading
• Heald 2 and 3 thread 1
• Heald 2 and 4 thread 4
• Heald 1 and 4 thread 2
• Heald 1 and 3 thread 3
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PEGGING PLAN
ROLLER – THREADLING DOBBY
DOBBY PIN
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CONSTRUCTION AND WEAVE
1. YARN COUNT
2. Yarn density
Number of yarns per cm or inch
– Warp dencity
– Weft dencity
CONS. FABRICS :
3. WEAVE
- PLAIN
- TWILL
- Satin
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The Basic Weave
• Plain
•Twill
• Satin
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SAMPLE FOR PEGGING PLAN PLAIN-TWILL-SATIN
PLAIN TWILL
SATIN
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PEGGING PLAN PLAIN-TWILL-SATIN WITH DOBBY
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PEGGING PLAN FOR COMBINATION DESIGN
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BASIC CONSEP IN MATERIAL CALCULATION
Fabric specification:
- Warp Ne1 30
- Weft Ne1 30
- Fabric width 110 cm
- Reed number 64/2
- Pick/inchi 64 (weft dencity)
- Warp shrinkage 13 % (ML)
- Weft shrinkage 10 % (MP)
- Warp waste 5 % (LL)
- Weft waste 3 % (LP)
- Fabric length 500 meter
- Selvedge 32 ends
Nm = 1,693 Ne1
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THE WEIGHT ABRV.
WARP WEIGHT :
100 100 WARP TOTAL
-------------- x -------------- x L FABRIC x ----------------- x 1 kg
100 - ML 100 - LL Ne1 x 1693
WEFT WEIGHT :
100 100 Pick x F WIDE
--------------- x -------------- x LF x ------------------------- x 1 kg
100 - MP 100 - LP Ne1 x 1693
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THE NEED OF YARN
WARP YARN :
100 100 (43,3. 64) + 32
--------- x -------------- x 500 x --------------------- x 1 kg
100 - 13 100 - 5 30 x 1693
= 22,80 kg
WEFT YARN :
100 100 64 x 43,3
--------------- x -------------- x 500 x -------------- x 1 kg
100 - 10 100 - 3 30 x 1693
= 23,81 kg
THE TOTAL YARN TO BE NEEDED : 46,61 kg
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THE MAGNITUDE OF PROD
• DEPEND ON :
• RPM FOR MACHINE
• WARP AND WEFT TOTAL
• YARN COUNT
• A KIND OF WEAVE
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Production of Weaving (PRO 8 HOURS EFFECTIVELY)
• NON MACHINE (2 - 5 KG)
•
• Shuttle (5 - 10 KG )
• MODERN MACHINE (MORE
THAN 10 KG)
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THANK YOU