CERTIFICATE OUTDOOR LIGHTFASTNESS

SQS 2

SQSUV INK

Result

Good – slight colour changes after 3 years

Testing Parameters

The lightfastness was tested according to ISO 16474-2 (paints and varnishes – methods of exposure to laboratory light sources – part 2: Xenon-arc lamps). The test was performed in a Xenotest 440 by Atlas Material Testing Solutions, using the following parameters:

Energy 60 W/m²Chamber temperature 38 °CBlack standard temperature 65 °CRelative humidity 50 %

The light irradiated by the Xenotest 440 equals 10 times the force of natural outdoor light of an average Central European day. The testing periods of 40, 80 and 120 days is equivalent to one, two and three years of outdoor irradiation.

Kilian Hintermann Marco Eicher Product Manager Ink Head of Ink Laboratory

Kriessern, August 2019

SQS 3

Primary (CMYK), secondary (RGB) and tertiary (K 340%) colours

Reference sample Exposed sample

1 2 3

Not irradiated reference 1 = 1 year irradiation time

2 = 2 years irradiation time

3 = 3 years irradiation time

This image is not colour-binding, it only serves to show the changes.

SQS 4

Measurement results

Delta E values: ∆E00 < 6.3 @ 3 years (CMYK + W and colour combinations)Colorimetrical values L*, a* and b* measured with Barbieri LFP qB Spectral Photometer (Log Nr. swissQprint 1125)

0

2

4

6

8

Schwarz 340 %

Blau

Grün

Rot

Weiss

Schwarz

Gelb

Magenta

Zyan

3210.50.25

SX1

Exposure (Years)

∆E*

00∆

E*00

0

2

4

6

8

Schwarz 340%

Blau

Grün

Rot

Weiss

Schwarz

Gelb

Magenta

Zyan

3210.50.25

SQS

Exposure (Years)

0

2

4

6

8

Black 340%

Blue

Green

Red

White

Black

Yellow

Magenta

Cyan

3210.50.25

0

2

4

6

8Schwarz 340%

Blau

Grün

Rot

Weiss

Schwarz

Gelb

Magenta

Zyan

3210.50.25

KX1/FR1

G-Ink

T-Ink

0

2

4

6

8Schwarz 340%

Blau

Grün

Rot

Weiss

Schwarz

Gelb

Magenta

Zyan

3210.50.25

Eposure (Years)

∆E*

00∆

E*00

∆E*

00

Eposure (Years)

Eposure (Years)

office@swissqprint.com

www.swissqprint.com

Schützenwiese 8

CH-9451 Kriessern

This information has been carefully compiled. It is based on experience gained in laboratory

conditions. Product behaviour and suitability in practice depend on the actual conditions of use.

General Conditions of Sale and Delivery apply.

Subject to technical change. © swissQprint 8-2019