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Innovative solutions for sustainable
paper packaging by BASF
Avnish Kumar Verma
Technical Manager – Paper Coating Chemicals
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Contents
Purpose of packaging – Basics and KPIs
Sustainability for Paper Packaging
Paper Packaging – Trends and Challenges
BASF Solutions for Paper Packaging
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Purpose of Packaging
For barrier (from gas, moisture, contaminants, oil etc)
For information transmission (medicine boxes)
For Market Communication
For convenience of handling, transporting and distribution
For Security (tampering proof)
For physical protection of enclosed material (mechanical shock, vibrations etc)
150 years150 yearsPaper PackagingSustainability is the Key
Currently 1/3rd packaging is with paper/paperboard and will grow
Responsible use of available resources
Raw material used for “Paper/Board Manufacturing” (pulp, waste paper)
Raw material used in “Converting Operations” to achieve barrier properties (PE)
Food safety / Food Contact Material regulations getting stricter
Generally Impacts:
Social
Environment
Economy
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Paper Packaging - KPIs
Mineral oil barrier (MOB)
Contaminants – MOSH (Mineral oil of saturated hydrocarbons)
– MOAH (Mineral oil of aromatic hydrocarbons)
Source – Printing ink coming along with recycled furnish (eg. Printed news print)
Application – Food items are directly packed in the box made with recycled furnish (DCGB
and WB) and stored for long time. In few countries, there are limits specified for the
contamination of the food.
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Barrier for Gases, Aroma, Moisture etc
Water Repellence Heat sealable Coffee/Beverages/Ice cream cups, frozen
applications of paperboard, kraft etc. Cobb (30 min) < 10 gsm
Oil and Grease Resistance (OGR) Short term resistance against absorption of oil,
occasionally heat-sealed. Example – plates, clam shells, mini buckets used for
serving food in quick service restaurant
Paper Packaging - KPIs
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Paper Packaging Trend and associated challenges
Paper/Board Manufacturing
Increased usage of recycled furnish
o Barrier against migration of contaminants coming from printing inks (MOSH and MOAH)
o Long Term barrier
Achieving required barrier within the premises of paper mill
Converting Operations
Elimination of non-biodegradable materials like PE
Increased usage of bio-degradable/compostable plastics
Usage of water based coating to get required barrier in converting operations including
printing
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Principle of BarrierDiffusion thru defects
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Principle of BarrierSelective Barrier
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Principle of BarrierPaper/Board is a challenging substrate for barrier coating
Capillaries
Structure of uncoated sheet under SEM
Surface Cross Section (MD)
Hills & Valleys
Porosity and Roughness is a challenge to develop BARRIER
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Principle of BarrierPaper/Board is a challenging substrate for barrier coating
Capillaries
Structure of coated/calendared sheet under SEM
Surface Cross Section (MD)
Hills & Valleys
Porosity and Roughness is a challenge to develop BARRIER
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Principle of BarrierBarrier coating on Paper
Example – water vapor
If base is corrected for porosity and roughness, a thin layer of functional coat is sufficient
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Barrier coating on Paper
Materials used in barrier coating on Paper
BASF Approach
Bio-degradable/Compostable plastic
Water based dispersions
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Barrier coating on Paper
Barrier application – BASF Approach
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Barrier coating on Paper
Barrier application – BASF Approach
Conventional Paper/Board coating Equipments (on machine/off machine)
Air Knife
Bar Coater
Film Press
Blade
Extruder
Printing Machine Flexo Offset Rotogravure
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BASF solutions for Paper Packaging
grains
Box made with recycled board
Functional coat to provide barrier for mineral oils
MOB Mineral Oil Barrier
OGROil & Grease Resistance
Water andMoisture Barrier
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Summary
Our products for paper packaging can be applied on paper thru various applications
like conventional coating in a paper mill, at printing press or at convertors/extruders.
We have developed necessary BARRIER testing facilities in our PAPER
APPLICATION CENTRE at Mumbai to support paper industry for the needs on
packaging
Packaging industry and especially paper & board packaging industry can benefit by
availing the packaging solutions
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Questions ??
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