ABREX® -

Human fingertip abrasion & hand abrasion tester with true simulation

If you want to have further information or would like to submit a demo test, please contact us.

Pneumatic Drive

With our 30-year experience and a full study of human physiology, it is concluded that a pneumatic actuation is the best and most efficient way to simulate human finger & hand abrasion.
ABREX^® is capable of translating the complex human fingertip and hand motions into a standardized testing machine. Compared with other systems which involve either linear drive, or gear system, only ABREX^® can simulate the human fingertip and hand movement.

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Applications

General abrasion is a common mechanical process on surfaces caused by scuffing, rubbing, or scratching under normal operation or under environmental exposure. Additionally, there is a special abrasion which is generated merely between human fingertip or hand and touched product surface. This special abrasion, namely ABREX^®-ABRASION leads to distinct patterns of damages on the materials and its surfaces. It widely appears in many types of consumer products.

Principle

ABREX^® -ABRASION, is a soft-chemo-mechanical fingertip & hand abrasion tester. The simulated wear pattern matches reality with 99% accuracy. It is a highly complex abrasion process which involves:

A 45° angle impact driven by a dynamic pneumatic cylinder attached with a viscoelastic fingertip under a defined load;
Then a friction rubbing or tumbling motion between the sample and a textile containing dirt, dandruff, oil, sweat or various types of testing liquids;
Followed by a retraction movement with or without the contact at the surface depending on the application.

Standards

IEC & DIN

ASD-Stan

OEM-Specifications

Others

Modules

Dynamic Fingernail Test Module

Performing fingernail scratch test
Supplied with the PMMA test disc
Additional 45° sample holder
Test path: 60 mm – 100 mm
Test load: up to 20 N

Dynamic Fingernail Test Module - Industrial

Performing industrial scratch test
The test tip (PVC, sharpened edge)
Scratch test under either 45° or 90° relatively to the test sample
Test path: 60 mm – 100 mm
Test load: up to 20 N

Dynamic Shoe Sole Test Module

Performing shoe sole scratch test on painted, coated, uncoated and laminated surface
Leather and SBR test disc
Additional 45° sample holder
Test path: 60 mm – 100 mm
Test load: up to 20 N

Fingerprint and Cleanability Test (BMW PR 506)

Affinity and cleanability property
Glossy piano paints and touchscreens, etc.
40mm fingerprint piston
Test gel or sebum
Microfiber or wool felt
Image processing toolkit

Steering Wheel hand Abrasion Test

A complete car or truck steering wheel is mounted directly on ABREX^®
No cutting for the lab samples
Feasible with an additional mobile 3D profilometer TRACEiT^® for further measurement
e.g. abrasion rate and surface roughness, topography and visual impression

Banknote Durability Test

Specially designed sample mounting adapter
Certain curvature for easy banknote fixing
Test with standard fabric, soiling fabric
Dry and wet condition

Banknote Limpness Test

Limpness is referred as the banknote paper is less stiff due to the frequent handling
Normally correlates with soiling and structural deterioration, which results in a marded lack of stiffness
Specially designed adapter
Simulation the limpness abrasion between the banknotes and human hands

Teeth Abrasion Test

Specially designed adapter
Durability test of tooth replacement materials
Abrasion counterpart can be customized.

Consumables

・Textile Options

Standard Fabric:

Simulates ABREX^®-abrasion according to DIN EN 60068-2-70 / IEC 68-2-70

Standard Textile Fine Wool:

Used for ABREX testing on thin and/or brittle coatings, touchscreen applications, etc.

Standard wool sebum textile

Used for ABREX Display and Touchscreen testing acc. to DFF Spec Touch, Swipe, Zoom etc.

Cotton-Batist Fabric (Denim):

Simulates abrasion with clothing materials (e.g. jeans) according to ISO 105 D01

Cotton-Lawn Fabric:

Simulates abrasion with fine-structured clothing materials (e.g. trouser pockets) acc. to ISO 405 F09

Soiling Fabric:

Simulates soiling behaviour with standard materials (by fats, soot) acc. to BMW GS 97034 and various standards. Two types of soiling fabric are available.

Standardized soiling textile fine

Simulates soiling behaviour with standard materials (fats, soot) acc. to BMW GS97034, GS-94011 for interior parts including displays and touch screen application and other specifications.