eval ( evoh) for hermetic bags & other agricultural fims - sep 2014
TRANSCRIPT
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“EVALTM EVOH FOR HERMETIC BAGS & AGRICULTURAL FILMS
SPECIALITY FILMS AND FLEXIBLE PACKAGING GLOBAL CONFERENCE -2014
25 – 26 SEPTEMBER 2014 ,MUMBAI ,INDIA
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CONTENTS
• INTRODUCTION OF GAS BARRIER RESIN
“EVAL™”
• HERMETIC BAG
• EVAL TM FOR HERMETIC BAG
• EVALTM FOR AGRICULTURAL FILMS &
ALLIED APPLICATIONS
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EVOH,
a random copolymer of
Ethylene and Vinyl-ALcohol
(CH2-CH2)m (CH2-CH)n
OH
32
35
27
24
38
44
48
Higher Barrier
Higher Flexibility Better thermal stability
mol% ethylene content
grades
What is EVALTM ?
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EVALTM Barrier Comparison
MATERIAL OTR @ 20degC65%RH (cc,20µm/m²,day,atm)
0.2-3.2
PVDC 3.0~18 16
Oriented PET 50 Oriented NYLON 40
LDPE 8250 HDPE 3000
Oriented PP 3000 PS 7000
EVALTM
PAN
1mm EVAL = 10meter PE
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LDPE
Monolayer
EVAL™
multilayer
Structure
(µm)
LDPE
100
LDPE/ tie/ EVAL-F/ tie /LDPE
42.5/ 5 / 5 / 5 / 42.5
OTR
(cc/m2,day,atm) 1650 1.6
EVAL™ provides excellent oxygen barrier
Condition: 20C-65%RH(out)/65%RH(in)
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HERMETIC BAG
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EVAL TM FOR FUMIGATION FILM
EVAL TM FOR SILAGE FILM
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What is fumigation?
and
Why need EVAL?
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Fumigation is needed for “Kill disease or weeds”
Disease increase by continuous cropping/grow same crop and same area continuously.
For efficient farming
bacterium Nematoda
Fumigants
Fumigant Risk Status
Methyl bromide ozone layer destruction Decided full phase-out untill Y15 by Montriol Protocol.
Chloropichrin strong tear gas/smell Increasing as alternative. Developed by Nazi as wepone.
Dichloropropene carcinogen Increasing as alternative.
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Fumigant Methyl bromide
Chloropicrin
1,3-Dichloropropene
Methyl iodide
STD
(Standard film)
Fumigated soil
PE
PE
PE
TIF
(Totally Impermeable Film)
PE
EVALTM
PE
Film
EVAL TM FOR FUMIGATION FILM
• Increase the fumigation efficiency • Higher yield and/or lower fumigant cost
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“Economical merit”
552
639
921
991 1020 1006
975
526
595
781 829
945 914
991
300
400
500
600
700
800
900
1000
1100
Control = 0 lb/ac
Pic-Clor60 = 50 lb/ac
Pic-Clor60 = 100 lb/ac
Pic-Clor60 = 200 lb/ac
Pic-Clor60 = 300 lb/ac
Pic-Clor60 = 400 lb/ac
MBPic = 350 lb/ac
gra
ms m
ark
eta
ble
fru
it / p
lan
t
Strawberry Yield
TIF
75% reduction
TIF
(EVAL)
STD
(LDPE)
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THANK YOU