eval ( evoh) for hermetic bags & other agricultural fims - sep 2014
TRANSCRIPT
“EVALTM EVOH FOR HERMETIC BAGS & AGRICULTURAL FILMS
SPECIALITY FILMS AND FLEXIBLE PACKAGING GLOBAL CONFERENCE -2014
25 – 26 SEPTEMBER 2014 ,MUMBAI ,INDIA
CONTENTS
• INTRODUCTION OF GAS BARRIER RESIN
“EVAL™”
• HERMETIC BAG
• EVAL TM FOR HERMETIC BAG
• EVALTM FOR AGRICULTURAL FILMS &
ALLIED APPLICATIONS
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 ?
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
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)
HERMETIC BAG
EVAL TM FOR FUMIGATION FILM
EVAL TM FOR SILAGE FILM
What is fumigation?
and
Why need EVAL?
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.
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
“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)
THANK YOU