fingertip hand abrasion tester

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Functionality of a product is considered as a matter of course, so the perception of quality is determined primarily by the visual appearance. Damage to a surface by the human hand is one of the main reason for disturbance of the products quality perception.

The hand abrasion is a very complex chemical and mechanical combination. By touching a surface the human hand performs a mechanical strike followed by a push-slide force. The human hand consists of a visco elastic material containing a rough
and structured surface. In addition, sweat or hand cream creates a severe chemical environment.

Hand Abrasion Tester / soft-chemo-mechanical fingertip amp; hand abrasion tester is designed to do
real life testing of finished products or lab samples in regards of resistance to hand abrasion. The
set-up of it is exactly reproducing the complex chemo mechanical system of the human hand abrasion according to international standards.

The flexible design of the tester allows various options and delivers reproducible results.

Specifications:
International Norm: EC 68-2-70
European Norm: EN 60068-2-70
German Norm: DIN 60068-2-70
Abrasion of markings and letterings caused by
rubbing of fingers and hands.

Technical data
Normal load: 1, 5, 10 N (20N optional)
Friction path: 1 - 40mm
Number of cycles: 1 -100 million
Fluid feed: cyclic
Fabric feed: cyclic
Power supply: 110 V / 230V

Mechanical options
Standard fabric;
Simulation of human skin acc.
ISO 12947-1/IEC 68-2-70

Dirt affinity
Simulation of soiling of materials.
Cotton soiled with carbon back/oil (IEC).

Abrasion of leather
Simulation of rub resistance of leather.
Standard wool felt.

Abrasion Pads
Simulation of high-abrasive mechanical wear.

Abrastion Pad sbquo;Scotch test
Simulation of abrasion with sbquo;scotchlsquo; pads.
More options on request.

Chemical options
Artificial Sweat
Artificial Sweat according to ISO 105 E04
or DIN 53160-2.

Hand cream / Sun lotion
Hand cream and Sun lotion according to customer specification.
More options on request.

Applications
Automotive market:
- Printing on switches
- Coating of door handles

White goods:
- Printing
- Painted surface

Computer industry:
- Keyboard
- Mouse