Uncovering the Carbon Footprint of Industrial Inkjet

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Uncovering the Carbon
Footprint of Industrial Inkjet
Clive Ayling
Prepared for IPI conference (23-24 Nov)

Edward Colson
https://en.wikipedia.org/wiki/Edward_
Colston#Philanthropic_works

Edward Colson
https://en.wikipedia.org/wiki/Edward_
Colston#Philanthropic_works
didn’t accept the need to stop
enriching h...

why us?
• moral case for us to be involved
• (not just our accounts department)
• (not just our PR or marketing department...

climate change trivia quiz
▪ IPCC
Intergovernmental Panel on Climate Change
part of the United Nations who perform peer gr...

Global Climate Change
▪ 19 of the last 20 years are the hottest on record
▪ unprecedented rate of temperature increase
▪ 1...

SPM 1b
Variations of the Earth’s temperature for the past 1000 years

SPM 1b
Variations of the Earth’s temperature for the past 1000 years

Variations of Earth’s temperature for the past 160,000 years

419 ppm
Variations of Earth’s temperature for the past 160,000 years

Carbon dioxide 419 ppm
Methane 1888 ppb
Methane
(ppb)
Temperature
Degrees C
Carbon
dioxide
(ppm)
Vostok ice core, Antarcti...

what links these facts?
▪ Greenhouse effect: solar heating reflected back by Earth’s atmosphere
• rapid increase in greenh...

Greenhouse modelling

~3%
methane 24%
carbon dioxide 63%
nitrous oxide 10% others 3%
Greenhouse gas contributions to warming

we’re good at farming

Summary of the context to this presentation
▪ Global warming
• measurable sensor values and science
• weather issues in ou...

contents
▪ context
▪ Inkjet’s footprint
• running the inkjet process
• making the consumables
• making the printer
▪ what ...

Inkjet’s carbon footprint
running an inkjet printer
creating an inkjet printer
creating inkjet ink

energy as a proxy for Carbon Footprint
Ourworldindata.org 2020 figures

Carbon footprint gCO2e/m2 of inkjet print
0.1
1
10
100
Manufacture of the printer Use of Printer Ink manufacture

running an inkjet printer
unprinted media becomes printed media
using electric power
to separate small amounts of ink from...

Head Actuation
▪ Electricity is fed to inkjet print heads via Meteor Head Driver Cards
▪ energy efficiency (Joules/meter2)...

Ink fixing (UV cure)
▪ UV light breaks bonds in the ink which reform cross-linking previously unlinked
molecules.
▪ Nomina...

Ink fixing (solvent and water)
▪ To avoid transfer of ink when media is rolled up, electrically-generated
heat is used to ...

Summary of energy used to run an inkjet printer
▪ “if it doesn’t feel hot to touch, it’s not using much energy”

Carbon footprint gCO2e/m2 of inkjet printing
everything
else
Drying
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7

minimising energy use in running an inkjet machine
▪ use UV-cure, or,
maximize efficiency of directing heat to the water/s...

Carbon Footprint in the creation of an inkjet printer
▪ Footprint shown is the product’s
share of:
1. Scope 1 your energy ...

carbon labelling

Inkjet manufacturing and end-of-life
▪ Meteor electronics per head 5 kgCO2e ?
▪ each Printhead 10 kgCO2e ?
▪ Mechanics?
▪ ...

Carbon footprint of inkjet ink
▪ 1L of inkjet ink…
▪ 1.2 kgCO2e to manufacture
▪ >0.35 kgCO2e to dry
▪ 1L of conventional ...

Carbon footprint gCO2e/m2 of inkjet print
0.1
1
10
100
Manufacture of the printer Use of Printer Ink manufacture
Log10 sca...

Digital Printing or Conventional Printing?
▪ even if conventional printing is lower carbon footprint in power and consumab...

Conclusion
▪ the World should like inkjet printing because it is an improvement on
conventional printing
▪ and because eac...

simple steps 1
▪ company travel policy
• choose low carbon method of transport
• click the “offset my carbon” button

simple steps 2
▪ company power policy

simple steps 3
▪ estimate and offset your remaining “tier 1” and “tier 2”
• heating
• un-offset travel

simple steps 4
▪ set up a task force and lead it
• company culture
• visiting speakers at vegan lunches
• estimate your “T...

Publicity
▪ if you’re in a company of <500 employees join https://businessclimatehub.org/
sponsored by inter alia by the I...

your next action on walking away from this presentation
▪ take those simple actions
• train not plane
• source power from ...

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