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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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