Transcript שקופית 1

Carmel Resins
Starch Adhesives
Additives
Carmel Resins
Corrugated board is a construction whose strength
depends on its "bonding points".
The strength depends on:
 Type of starch
 Glue formulation
 Temperature
 Paper quality
 Glue penetration
 Running speed
The bonding quality determines the final
strength of the corrugated board.
Carmel Resins
Carmel Resins Additives
•Our premium resin products for corrugated
container industry has set quality standards since its
introduction in 1988.
•All of our resins are the result of continuous
development to meet our customers needs and the
new environment regulations.
Carmel Resins
Carmel Resins Additives
•All of our resins are listed by the FDA Regulation 21
CFR §175.105 and consequently can be safely used
as a component of articles intended for use in
packaging, transporting or holding food.
•All of our resins meet the updated legislation
requirements of the EU and USA
Carmel Resins
Carmel Resins Additives
•Water resistance additives
•Corrugator performance enhancers.
•Adhesive penetration enhancers.
•Rheological modifier and viscosity stabilizer
Carmel Resins
Water Resistance
Starch glue, even if prepared properly, is water
soluble.
Starch glue weakens in
a humid environment.
In water, the board
loses its strength until a
total separation occurs.
Quick test: 1.4 minutes
Carmel Resins
Water Resistance.
Water resistant corrugated board is required in a
variety of industries:
•Foods and beverages
• Frozen foods
• High humidity areas
• Tobacco
• Fruits and vegetables
• Flower packaging
• Outdoor storage
• Hi-Tech consumer products
Carmel Resins
Water Resistance.
The level of water resistance required from a corrugating
adhesive varies depending upon the application.
1.
Moisture Resistant Adhesive
Used for the least demanding
applications.
2.
Water Resistant Adhesive
Medium level of performance
W
p
A
3.
ater roof dhesive
Highest level of performance
Quick test: 6.1 minutes
Carmel Resins
Mechanism of Water Resistance
Water resistance is achieved by a cross linking
reaction between the starch/cellulose and the resin,
in which a grid of covalent bonds is formed.
The grid is formed after gelatinization of the glue.
This chemical bond is stable in water, and thus the
glue acquires water resistant qualities.
The reaction is dependent on
temperature and PH.
Carmel Resins
Mechanism of Water Resistance
Dry Starch Adhesive is water soluble
Resin is water soluble
Dry Starch Adhesive + Resin (pH >11 + temp >120°C)
Polymer which is insoluble in water
Optimum results occur after a required stacking
period of 4-24h.
Carmel Resins
•Starch and Cellulose are Isomers
Carmel Resins
Proposed Mechanism
Condensation reaction between Resin and Hydroxylcontaining polymers , like starch and cellulose:
O
HO-CH2-CH2-C-CH2-CH2-OH + HO-Polymer
NaOH,
O
Polymer-O-CH2-CH2-C-CH2CH2-O-Polymer + H2O
Polymer = α -1,4 Polyglucoside (starch - amylose or
amylopectin) and β-1,4 Polyglucoside (cellulose)
Carmel Resins
Tests
Wet pin adhesive test (PAT)
Carmel Resins
Tests
Wet box compression test (BCT)
Carmel Resins
Tests
Quick test - testing of the water resistance of corrugated board.
Soak a piece of cardboard in water at 50ºC.
The results relate to the time needed for it to open by itself
with just a touch of the hand.
Opening period
up to 5 min.
5-10 min.
10-30 min.
over 30 min.
Resistance Evaluation
no resistance
low resistance
medium resistance
very good resistance
Quick test
Carmel Resins
Tests
FEFCO No 9 (European Fed. of Cardboard Manuf.)
The water resistance of the glue of corrugated fiberboard is
measured by the length of time during which a predetermined
combination of glue lines, immersed in water, resists the pull
of a suspended weight in the plane vertical axis of the board,
at a right angle to the glue lines.
Carmel Resins
Enhanced adhesive performance
Green Bond and High Speed
Side delamination issues arising on the corrugator
is well known, in order to reduce this phenomena
the decreasing of the corrugator’s speed is needed.
The result is lower productivity and line efficiency,
and higher costs.
Carmel Resins
Green Bond and High Speed
Side delamination can be overcome by increasing
the tackiness of the wet glue leading to better
bonding which allows working at higher speeds.
Thus productivity and line efficiency increases,
and costs decrease.
Carmel Resins
Enhanced Properties
A group of resins specifically designed to produce
early green tackiness. ( CP-88/LV CP-88/LA, CP88/LV20D)
These polymers are film formers and possess a high
concentration of polar chemical groups which cling
to the cellulose of the board by hydrogen and
physical bonds.
The strong bonds allow higher
running speeds with less waste,
and accelerate production.
Carmel Resins
Enhanced adhesive penetration – CP-88/P
This additive enables rapid migration of liquid starch
adhesive into paper assisting the bonding of recycled
liners, liners coated with synthetic polymers,
preprinted liners and other difficult to penetrate
substrates.
This additive Improves bond quality and corrugator
speeds on all grades of paper including heavy
weights, double wall and triple wall.
Carmel Resins
RHEOLOGICAL MODIFIRE AND VISCOSITY STABILIZER– CP-88/VS
Affecting the adhesive film.
Reduce adhesive consumption.
Keeping adhesive viscosity stable for more than 24
hours without stirring or circulating.
Carmel Resins
Types of Additives
By appearance:
Liquid:
Can be applied at the kitchen or at the line. Exists in different
concentrations from 30-65% solids (CP-88, CPV 25 and
CPAV 37) .
The high concentration resins ( LH5, LH6, LH8 ) are raw
materials for different formulations.
Powder:
Can be applied at the adhesive blending tank
or blended with one bag mix –OBM ready to use
starch adhesive (TP1)
Carmel Resins
Additives Types
By application:
Thermoseting Resins for water resistance: CP-88/I, CP-88/LI, CP88/LH 5, CP-88/LH6, CP-88/TP1.
•different levels of water resistance according to resin
concentration. Curing time 4-24h
Poly-phenolic natural extract for water resistance:
Does not contain formaldehyde.
CP 88/T40 -
Carmel Resins
Additives Types
Enhanced adhesion and mechanical properties resins :
CPAV 37, CPV 18, CPV-25, CP88-P - Do not contain
formaldehyde.
increases tackiness of the glue to allow higher speeds
for the corrugator.
Carmel Resins
Blends with combined properties
Specific blends of proprietary resins:
corrugators performance, water resistance, bond
improvement and production speed enhancersCP-88/LV, CP88/LA , CP-88/LV20D
Can be adjusted for costumer requirements.
• Reduces curing time.
• Early or immediate converting.
• Increases green bond.
• Increases running speed.
Carmel Resins
Cost
Using Resins
Save costs
Wet Tack
Running speed
Productivity
SAVE $
Wet Tack
Green bond
Energy
SAVE $
Penetration
Adhesive
Energy
SAVE $
Stable Viscosity
Adhesive
Dry strength
BCT,ECT
Stable Viscosity
wet BCT
Energy
Scrap
paper gramage
Humid store
price
SAVE $
SAVE $
SAVE $
Carmel Resins
Cost
Using resins in adhesives
SAVES
production costs
Carmel Resins
FF<0.5%
FF<0.2%
FF<0.1%
Penetration
%Solids
% Dosage
for total Adhesive
LIQUIDS ketone aldehyde
CP 88/ID
CP 88/LID
CP 88/LIDEX
CP 88/LIDP
CP 88/I
CP 88/LI
CP 88/LIEX
CP 88/LIP
CP 88/H5
CP 88/LH5
CP 88/LH5EX
CP 88/LH5P
CP 88/H6
CP 88/LH6
CP 88/LH6EX
CP 88/LH6P
CP 88/H8
CP 88/LH8
CP 88/LH8EX
CP 88/LH8P
LIQUIDS Modified Keton aldehyde
CP 88/V
CP 88/LV
CP 88/LVEX
CP 88/LVP
CP 88/V20D CP 88/LV20D
CP 88/LV20DEX
CP 88/LV20DP
CP 88/A
CP 88/LA
CP 88/LAEX
CP 88/LAP
CP-88/AC
CP-88/LAC
CP-88/ACEX
CP-88/LACP
LIQUIDS non formaldehyde resins
CPV 18
CPV 25
CPAV - 37
CP88/T40
CP-88/VS
Rheological modified and viscosity stabilizer new product
CP-88/P
Penetration Aid new product
SOLID blend powder resins
CP 88/TP1
CP-88/CAL
CP-88/CALL
38
43
54
65
79
1.8
1.6
49
32
1.7
2.5
59
1.8
18
25
39
45
3
2
1
1.5
0.3-1
*
*
0.1-3
CP88/TPL1
-
100%
1
-
-
100%
1.2
Carmel Resins
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Carmel Resins
%Solids
Penetration
FF<0.1%
FF<0.2%
(P)
(EX)
(L)
LIQUIDS ketone aldehyde
38
√
√
√
CP 88/ID
43
√
√
√
CP 88/I
54
√
√
√
CP 88/H5
65
√
√
√
CP 88/H6
79
√
√
√
CP 88/H8
LIQUIDS Modified Keton aldehyde
49
√
√
√
CP 88/V
32
√
√
√
CP 88/V20D
√
√
√
CP 88/A
59
√
√
√
CP-88/AC
LIQUIDS non formaldehyde resins
18
CPV 18
25
CPV 25
39
CPAV - 37
45
CP88/T40
Rheological modified and viscosity stabilizer
CP-88/VS
Penetration Aid
CP-88/P
SOLID blend powder resins
100%
√
CP 88/TP1
100%
√
CP-88/CAL
FF<0.5%
% Dosage
for total Adhesive
1.8
1.6
*
*
1.7
2.5
1.8
3
2
1
1.5
0.3-1
0.1-3
1
1.2