150 years Innovative solutions for sustainable paper packaging by BASF Avnish Kumar Verma Technical Manager – Paper Coating Chemicals

150 years Contents  Purpose of packaging – Basics and KPIs  Sustainability for Paper Packaging  Paper Packaging – Trends and Challenges  BASF Solutions for Paper Packaging

150 years 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 years Paper Packaging Sustainability is the Key  Currently 1/3 rd 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

150 years 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.

150 years  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

150 years 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

150 years Principle of Barrier Diffusion thru defects

150 years Principle of Barrier Selective Barrier

150 years Principle of Barrier Paper/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

150 years Principle of Barrier Paper/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

150 years Principle of Barrier Barrier coating on Paper Example – water vapor If base is corrected for porosity and roughness, a thin layer of functional coat is sufficient

150 years Barrier coating on Paper Materials used in barrier coating on Paper BASF Approach  Bio-degradable/Compostable plastic  Water based dispersions

150 years Barrier coating on Paper Barrier application – BASF Approach

150 years 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

150 years BASF solutions for Paper Packaging grains Box made with recycled board Functional coat to provide barrier for mineral oils MOB Mineral Oil Barrier OGR Oil & Grease Resistance Water and Moisture Barrier

150 years 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

150 years Questions ??

150 years