The Adventures of CRC Smartprint

8/22/2019 The Adventures of CRC Smartprint

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Co-operative Research Centres

A CRC is a legal arrangement between industry, research

providers, and the Australian Federal Government.

CRCs are divided into a number of segments of value to the Australian economy:

Information & Communication Technology

Mining & Energy

Agriculture & Rural Based Manufacturing

Environment

Medical Science & Technology

CRC Smartprint is part of the Manufacturing Technology grouping.


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Smartprint Structure

Research Providers

Industry Partners


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CRC Programs

Program 1. Surface Measurement & Liquid Penetration

(ANU). Fundamental studies of liquid/substrate interactions

Program 2. Development of New Products

(CSIRO). Formulation of new products to match opportunities

Pro rams 3 & 4. Surface Interactions & Rheolo ical Investi ations

(Monash) Research into commercial applications

Advanced rheology of suspensions & solutions

High speed printing & coating processes

Program 5. Education

Training of PhD and MSc students

Program 6. PRINT Laboratory

Applications LaboratoryTechnology Transfer

Industry Troubleshooting Service


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Penetration of Fluids Into Paper

Fluid follows fibre surfaces

Fluid does not fill pores

Results showed that film flow is the dominant mechanism for fluid penetration.

This research changes the view from the Lucas-Washburn approach.


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Phase Contrast X-ray Microscopy

Light chemical elements are difficult to resolve with normal X-ray microscopy

ANU CT scanner

Cellulose fibres

normal contrast level

-

Cellulose fibres

with phase contrast

ANU algorithms resolve fibres by phase contrast


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3D X-ray Construction of Paper

Using the National Supercomputer in Canberra, ANU research has developed

3 dimensional X-ray pictures of paper that can rotated through 360 degrees


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Printing Process Research

DigitalScreen & other

5%

10%

Digital

20%

40%

LithoFlexo

25%

Gravure

Print processes that we have known for centuries are rapidly changing to accept the digital revolution.


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Modified Substrate Surfaces

Ink jet head

Paper Modi ied sur ace

Ink Jet printing is often spoiled by ink spreading after printing an effect called wicking


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Filler Pigments SEM Analysis

Custom-designed fillers for paper to optimise ink acceptability.


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Advanced Print Fidelity

Improved paper surfaces give better receptivity to ink and prevent wicking.


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Lithography Research

Printing offset ink from ice disproves the old hypothesis that litho ink transfer is a function of surface tension.


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Litho Ink Emulsion Study

40

45

50

Water Content

25

30

35

10%

20%

30%Vol.

10

15

20

0

5

0.25 0.75 1.25 1.75 2.25 2.75 3 4 5 6 7 8

Dro let radius P

Water droplet numbers decrease but size increases with concentration in the ink.


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High Speed Coater

High speed pilot paper coating machine designed and built under the CRC program at Monash Uni.


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Coater Design

Close up of high speed coater applicator roll


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Tissue Creping

The high speed coated can also be configured to produce creped (tissue) paper


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Recycling of Newsprint

Before treatment

Current rec clin rocesses use stron chemicals and are hard on the fibres

Pilot flotation separator built for CRC

Modify ink removal step and separation techniques to increase efficiency.


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Currency Printing

Working with industry participant Note Printing Australia to advance polymer note technology


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Active Barcodes

Firstreadable

state

Second

readablestate

Active barcodes provide additional information on package contents through barcode readers


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Chemical Indicator Systems

Indication of Target Molecules

H S Hydrogen Sulphide

SO2

Sulphur Dioxide

RNH2 Amines

Removal of Target Molecules

H2C-CH2 eg. Ethylene

omp ex orma on

Complexing cations: eg. Heavy metals

Tem erature Indicators Overheat and freeze/thaw

Humidity Indicators Controlled water absorption


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Time Temperature Indicators

Initial Partially Further

activated activation

Printable time temperature indicators provide cheap and simple cold chain history for packaging


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Simple Moisture Indicator

Wet state

Simple indicators provide information about packaged materials at a glance


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Education

During the course of the CRC

The Centre has trained 34 PhD and MSc students

a o a cos o . m on


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PRINT = Print Research Involving New Technology

The CRC is a Commonwealth initiative,the National Printing Laboratory - PRINT is jointly

funded by the Victorian Government and Monash University.

1. An applications and testing facility for developments of the CRC.

. .


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National Printing Laboratory - PRINT

One of the most best equipped printing technology laboratories in the world.


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www.CRC-FCS.com

Cooperative Research Centre for Functional Communication Surfaces

The Adventures of CRC Smartprint

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