8/19/2019 Stenter Machine
1/20
Mazadul Hasan Shishir , Southeast University
1
Stenter Machine
8/19/2019 Stenter Machine
2/20
Prepared By : Mazadul Hasan sheshir ID: 201000040000813 th Batch (session 200 !2013"Depart#ent : $et Processin% &echnolo%y'#ail: #azadulhasan yahoo)co#Blo% : ***) &e+tilela,),lo%spot)co# (-isit"
Southeast UniversityDepartment Of Textile Engineering
I/A !1" ! Te#gaon Dha$a %angla&e sh
'repare& %y (
© right
8/19/2019 Stenter Machine
3/20
Main Units
A padder to uniformly wet-out fabricsand apply nishing agents, !eft-straightening devicesand control e"uipment
Mazadul Hasan Shishir , Southeast University
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8/19/2019 Stenter Machine
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Uses
#he stenter is a continuous types of machineand can be used before or afterdyeing$printing%
#he stenter frame used for followingprocesses%&% '"ualizing(s)ew and bow control*+% rinted design control
% .abric width setting/% Application of nishing chemicals0% 1rying
*
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
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rocess stages!
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
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Stenter .rame+
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
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Stenter .rame
Mazadul Hasan Shishir , Southeast University
,
8/19/2019 Stenter Machine
8/20
rocess 1escription
#he selvedges are held by two endless chainstypically /2 to 32 metres in length and the fabricis conveyed through a series of heatedcompartments or bays% Hot air is directed onto thefabric e"ually from above and below% #heselvedges are held either on pins about 0 mm longmounted in base plates or by clips that grip theselvedges between smooth surfaces% 4ubrication
of the chain is important and this ta)es placeautomatically during running% #he lubricant mustbe completely stable during continuous high-temperature operation%
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Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
9/20
Some features
Stenter speeds range from only &2 m$min for heavyweightfurnishings up to &22 m$min for lightweight dressgoods%5verfeed is fre"uently necessary to compensate for warp waystretch in previous processing and to minimise shrin)age inwashing and dry-cleaning%
#he speed of the fabric through the stenter is controlled bythe motion of the pin chain, but the fabric entry can bead6usted independently by the entry rollers%
#emperature uniformity over the entire area of fabric isensured
#oo low temperatures do not allow a good setting while toohigh temperatures and too long setting times cause yellowing( A and elastic bres*, sti7 hand (acrylics*, and loss ofelasticity (elastic bres*%
.
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
10/20
#he setting temperature used is
above #g% 8n heat setting, inter-chain bonds, such as hydrogenand dipole bonds, brea)% #hisallows the molecular chains to
move and adopt new, stress-freepositions% 9ew intermolecularbonds then form with the fabric ina rela:ed condition at the settingtemperature% After cooling, thepolymer molecules in the
laments become frozen in place% #he new bonds are stable up tothe heat setting temperature% #he
reorganized internal polymerstructure and the material;s
Heat setting1
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
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#emperature
8/19/2019 Stenter Machine
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'"ualizing (S)ew$ =ow*1
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
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S)ew and =ow1)
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
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1esign 1eviation1*
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
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1!
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
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How to control it>1+
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
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!eft Straightening 1evice1,
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
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Mahlo or =ianco 4ocation
Mazadul Hasan Shishir , Southeast University
1-
8/19/2019 Stenter Machine
19/20
&% Actualweftcon guration +% Actualdistortion (in?*
% 32mintrenddiagrams
(s)ew andbow*
@ontroling Monitor1.
Mazadul Hasan Shishir , Southeast University
8/19/2019 Stenter Machine
20/20
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