This document provides information about operating and setting heat parameters for a stenter machine at MAA Garment & Textiles Factory in Ethiopia. It discusses the objective of using a stenter machine to control fabric dimensions, apply heat setting and finishing chemicals. It then lists functions of the stenter machine like heat setting, width control, and moisture control. Details are given about a specific stenter machine brand and its specifications. The document concludes with standard heat setting parameters for different buyers and fabric types.

1. STENTER MACHINE
OPERATION & HEAT
SET
MAA Garment &
Textiles Factory
PO Box 1976, Quiha, Mekelle, Ethiopia.

2. Stenter M/c Side View

3. Objective of stenter
A machine or apparatus for stretching or
stentering fabrics. The purpose of the stenter
machine is to bringing the length and width
to pre determine dimensions and also for
heat setting and it is used for applying
finishing chemicals and also shade variation
is adjusted. The main function of the stenter
is to stretch the fabric widthwise and to
recover the uniform width.

4. Function of stenter Machine
1. Heat setting is done by the stenter for lycra fabric , synthetic and blended fabric.
2. Width of the fabric is controlled by the stenter.
3. Finishing chemical apply on fabric by the stenter.
4. Loop of the knit fabric is controlled.
5. Moisture of the fabric is controlled by the stenter.
6. Spirility controlled by the stenter.
7. GSM of the fabric is controlled by stenter.
8. Fabric is dried by the stentering processs
9. Shrinkage property of the fabric is controlled.
10. Curing treatment for resin, water repellent fabric is done by the stenter.

5. 1 Brand Name Monforts
2 Origin Germany
3 Year of manufacture 2007
4 Speed range 5-80 M/Min
5 Temperature range 50-250 C
6 Used utilities Electricity, Thermal oil, Compress air, Steam
7 Production capacities 8 ton /day (24 hours)
8 No. of chamber 5
9 Maximum fabrics width 105”
10 Minimum fabric width 30”
11 Steam pressure 2 bar
12 Air pressure 10 bar
13 Applied for Open tube fabric
14 No. of ratamatic burner 5
15 Extra Attachment Mahlo weft straightener
16 M/C parts Nozzle, Exhaust air fan, Over feed roller, Suction
fan, Chain
Specification of a Stenter Machine:

6. The fabric is collected from the batcher to the scray and then it is passed through
the padders where the finishes are applied and some times shade variation is
corrected. The fabric is entered into the mahlo (weft straigtner) the function of the
mahlo is to set the bow and also weave of the fabric is griped by the clips and pins
are also provided but the pins has a disadvantage that they pins make holes at the
selvedge but the stretching of the pins are greater than the clips. these clips and
pins are joined to endless chain. there are 5 chambers provided on the machine
each chamber contains a burner and filters are provided to separate dust from air.
the circulating fans blow air from the base to the upper side and exhaust fans
sucks all the hot air within the chambers. Attraction rollers are provided to stretch
the warp yarn.
After stentering we can increase the width of the fabric up to 1.5-2 inch. The speed
of the machine is about 7-150 m/min.3 meters fabric can run in each chamber.
temperature is adjusted that according to the fabric as for,
1. PC 210 c
2. Cotton 110-130 c
After dyeing 160-170c and after print 130-140c.
Working Procedure of Stenter Machine:

8. STANDARD OPERATING
PROCEDURE
Stenter Machine
Batch Card
1 Check Buyer, Dia, Gauge, Stitch Length, Required GSM
2 Match with Standard Parameter Sheet
Parameter
1 Set Temp, Width, Overfeed, Speed As a Standard Parameter Sheet.
2 If Not match with Standard Parameter sheet then Inform to Shift head.
3 Prepare Softener as Buyer standard.
Manpower
1 Set Manpower, Back 1 person, Operation area 1 person & Delivery side 1 person.
2 Re-check set parameter & standard parameter.
Check
1 Temperature, Air Pressure & Water if set up & actual same.
2 Now can started machine.
3 Check after delivery, GSM, Width, Hand feel & Shade , If ok as buyer standard then continue

9. STANDARD FINISHING PARAMETER
MAA Garment & Texile Factory
P .O Box No-1976, Quiha, Mekelle, Ethiopia
Standard Finishing Parameter Update: 21/07/2016
From: 06/1/2016
SL Buyer Fabrication Colour
Knitting Parameter Required Stenter Parameter Required After Stenter
Count Dia Gauge
Stitch
Length
Grey Width Grey GSM Req Width Req GSM
Temperatur
e
Speed Overfeed Width Set Width GSM Next
1
H&M
Lycra S/J White 36 30 28 2.88 174 170 170 160 130 15 50% 170 170-175 150-155 Compactor
2 Lycra S/J White 36 30 28 2.7 174 180 170 180 130 15 60% 165 165-170 165-170 Compactor
3 Lycra S/J White 36 34 28 2.7 180 190 180 130 15 60% 185 185-190 165-170 Compactor
4 Lycra S/J Black 36 30 28 2.88 170 175 160 160 15 50% 175 175-180 150-155 Compactor
5 Single Jersey White 28 30 28 2.85 145 180 145 130 15 50% 180 180-185 140-145
6 Single Jersey White 30 30 28 2.70 216 138 170 160 130 15 50% 170 170-175 155
7 Single Jersey Black 30 30 28 3.00 125 190 145 180 20 50% 190 190-195 140-145 New
8 Single Jersey Junbug 28 30 28 2.95 135 190 145 170 16 50% 190 190-195 140 New
9
NJ
Single Jersey White 28 30 28 2.85 145 180 145 130 15 50% 180 180-185 140-145
10 Single Jersey White 28 30 28 2.70 155 170 160 140 15 50% 170 170-175 150-158
11 Single Jersey Black 28 30 28 2.90 135 185 160 170 18 50% 180 180-185 150-158
12 Single Jersey Turquist 28 30 28 2.75 150 175 160 160 16 50% 175 175-180 155-160
13 Single Jersey Green 28 30 28 2.75 150 175 160 160 16 50% 175 175-180 155-160
14 Single Jersey Orange 28 30 28 2.75 155 175 160 160 16 50% 175 175-180 155-160
15 Single Jersey Black 28 30 28 3.10 125 195 145 170 18 50% 195 195-200 140-145
16 Single Jersey Mellange 28 30 28 2.85 145 180 160 160 16 50% 175 175-180 150-158
17 Single Jersey Black (PC) 28 30 28 2.95 214 135 185 160 170 15 50% 180 180-185 155-160 New
18 Single Jersey White(PC) 28 30 28 2.85 145 190 160 160 18 50% 180 180-185 155-160 New
19 Single Jersey Navy 28 30 28 2.90 140 185 160 170 16 50% 185 185-190 155-160 New
20
NJ
Primark
Single Jersey Mellange 28 30 28 3.1 125 190 140 160 16 50% 190 190-195 136-140
21 Single Jersey White 28 30 28 2.85 145 180 140 130 15 50% 180 180-185 136-140
22 Single Jersey Black 28 30 28 3.1 125 190 140 180 18 50% 195 190-195 136-140
23 Single Jersey Charcol 28 30 28 2.9 130 180 140 160 16 50% 185 180-185 136-140
Prepare Check Approved

10. MAA Garment & Texile Factory
P .O Box No-1976, Quiha, Mekelle, Ethiopia
Standard Finishing Parameter Update: 21/07/2016
From: 06/1/2016
SL Buyer Fabrication Colour
Knitting Parameter Required Stenter Parameter Required After Stenter
Count Dia Gauge
Stitch
Length
Grey
Width
Grey GSM
Req
Width
Req GSM
Temperatu
re
Speed Overfeed Width Set Width GSM Next
24
KIK
Single Jersey White 26 34 24 2.78 180 160 140 15 50% 180
185-
190
152-160
25 Single Jersey Black 26 34 24 2.90 190 160 170 18 50% 180
185-
190
155-160
26
Tezenise
Single Jersey Black 28 30 28 3.1 125 195 145 170 18 50% 195
195-
200
140-145
27 Single Jersey White 28 30 28 2.85 145 180 145 130 15 50% 180
180-
185
140-145
28
Poly
Concept
Pique
Dark
Colour 24 30 24 2.85 234 175 215 200 170 10 60% 220
215-
220
200-210 Compactor
29 Pique
White/M
ellance 24 30 24 2.75 234 185 215 200 170 10 60% 220
215-
220
190-200 Compactor
30
Beconect
Single Jersey White 28 30 28 2.85 145 180 140 130 15 50% 180
180-
185
136-140
31 Single Jersey Black 28 30 28 3.1 125 190 140 180 18 50% 195
190-
195
136-140
32 Takeza Single Jersey White 20 34 24 3.25 175 195 180 160 18 50% 195
195-
200
175-180
33
VF Asia
Single Jersey White 30 30 28 2.65 145 165 160 160 15 50% 165
165-
170
156-160 New
34 Single Jersey Navy 30 30 28 2.75 140 170 160 160 15 50% 170
170-
175
154-158
35 Lycra S/J
Navy/
White
40 30 28 2.85 165 170 160 160 15 50% 170
165-
170
150-155 Compactor
Prepare Check
Approve
d
STANDARD FINISHING PARAMETER

11. KEEPING RECORD IN FINISHING

13. Heat Setting
Heat-setting is a heat treatment by which shape retention, crease resistance,
resilience and elasticity are imparted to the fibers. It also brings changes in
strength, stretch ability, softness, dyeability and sometimes on the colour of
the material. All these changes are connected with the structural and
chemical modifications occurring in the fibre.
This operation is crucial for fabrics made of synthetic fibres (PE, PA,
elastomers), for triacetate, and partly for PAC fibres (setting), since it grants
excellent dimensional stabilization and crease proof properties, maintained
till the fabric is exposed (by air blowing) to temperatures exceeding the heat
setting one (after being treated with water at a temperature above the
second order glass transition temperature, i.e. 80-85°C for acrylics).
Heat setting is carried out on gray fabrics (scarcely applied), on scoured
fabrics (frequently applied) and on dyed fabrics (scarcely applied). The
process grants excellent dimensional stability and good crease-proof
properties. As far as operating conditions are concerned, the fabric must be
treated in accurately controlled moisture and temperature conditions.

14. 1. Heat setting is a heat treatment by which shape retention,
crease resistance, resilience and elasticity are imparted to the
fibers.
2. Change in strength, stretch ability, softness , dye ability and
sometimes in color.
3. Changes occur due to structural and chemical modification of
fibers.

15. Heat setting can be carried out at three different stages:
1. In grey condition
2. After scouring
3. After dyeing

16. 1. If heat setting is carried out in loom state, mineral oils and
non-ionic emulsifiers can modify the fiber.
2. Structure and rubbing and perspiration fastness may be
reduced due to the solubility of disperse dye in the coning oil.
3. However, grey heat setting is useful in warp knitting
industry as in that material carry less amount of lubricants.
4. Yellow color due to heat setting can be removed by
bleaching.
5. Fabric is less sensitive to crease formation in next processes.

17. Heat setting is done after scouring if it is suspected that:
1. goods will shrink .
2. Cloth has developed stretch or other properties
after scouring.

18. These fabric shows considerable resistance to stripping
compared with dyeing on unset fabric.
Disadvantage of this are:
1. Yellow color developed can not b removed.
2. Handle of cloth may get altered.
3. Risk of color to get fade.

19. 1. Structural changes
2. Dimensional stability
3. Stiffness
4. Crease recovery
5. Dyeability

20. HEAT SET PROCEDURE
1 Knitting Machine wise Batch Prepare.
2 Dyeing Machine wiae Batch Prepare.
3 In Batch Card should be write M/c Dia, Gauge, Stitch Length, Yarn count & Required GSM.
4 Sewing time follow Needle line.
5 Slitting time need to be carefully follow slitting line.
6 Grey GSM & Width check also compare with standard.
7 Stenter M/c parameter set as a Standard parameter sheet.
8 Width, Temperature & Speed Fixed If needed then adjust only overfeed.
9 Follow Colour wise After heat set GSM
10 After Heat set keep record Roll to roll & Within roll GSM.
11 Colour wise identify & Some rolls need to be write then not mix-up with another Colour.

21. HEAT SET PROCEDURE
Lycra Grey Fabrics Relaxation Procedure
1 Knitting
1. After knitting should be Relax stage not Roll stage
2. Maximum 24 Hours.
2 Store
1. Not More the 24 hours
2. Within 24 hours hand over to Batch Section
3 Batch Section 1. Batch Knitting M/c wise & Dyeing M/c Capacity wise
2. Withing 2 hours Handover to Slitting.
4 Slitting
1. Within one trolley Maximum 500 KG Keep.
2. After slitting Need 4 hours keeping.
5 Stenter 1. Check Grey GSM & Width.
2. After stenter Relax minimum 2 Hours

22. STANDARD HEAT SET PARAMETER
MAA Garment & Texile Factory
P .O Box No-1976, Quiha, Mekelle, Ethiopia
Heat Set Parameter
From:
06/1/2016
Update:
29/9/2016
SL Buyer
Fabricati
on
Colour
Knitting Parameter Required Stenter Parameter Required After Stenter
Count Dia Gauge
Stitch
Length
Grey
Width
Grey
GSM
Req
Width
Req
GSM
Teparatu
re
Speed
Overfee
d
Width
Set
Width GSM
1
H&M
Lycra
S/J
White 36/1 30 28 2.88 174 170 165 160 200 18
35-
40%
175 175
165-
170
2
Lycra
S/J
White 36/1 30 28 2.70 174 180 165 180 200 23 60% 165 175
185-
190
3
Lycra
S/J
White 36/1 34 28 2.70 180 180 195 180 200 23 60% 185 195
185-
190
4
Lycra
S/J
Black 36/1 30 28 2.88 180 165 170 160 200 18
30-
35%
175 175
150-
155
5
KIK
Lycra
S/J
Black 36/1 30 28 2.88 174 165 170 180 200 20 50% 170 170
180-
185
6
Lycra
S/J
Light
Color
36/1 30 28 2.88 174 165 170 180 200 20 60% 170 170
185-
190
7
VF Asia
Lycra
S/J
White 40/1 30 28 2.88 170 175 165 160 200 18 30-35% 170 170
165-
170
8
Lycra
S/J
Navy 40/1 30 28 2.88 170 175 165 165 200 18 25-30% 170 170
155-
160
Prepare
Check
By
Approve
d

24. Our Expectation Good Quality
with Quantity.