Adhesion of windowed security threads

Tuesday, 07 September 2021 / Published in
The security thread is usually a 1-3 mm wide metallised strip that lies within the paper, as it is already introduced into the paper mass during substrate production. A variant is the window security thread, which lies open in sections by reducing the thickness of the paper as with a watermark. This is usually 3-6 mm wide and can also be provided with additional optical or invisible properties.

Lifetime test of banknotes

Friday, 03 September 2021 / Published in
The test procedure is used to simulate the durability of banknotes in relation to physical and chemical influences. The test can draw conclusions about how the durability of the banknote develops during circulation and how the optical appearance changes due to soiling.

Simulation of hand abrasion

Thursday, 02 June 2016 / Published in
Nowadays, the flawless functionality of a product is taken for granted by customers. Our perception of quality is therefore primarily shaped by the visual appearance. Abrasion marks on the surface - produced by the human hand - are mainly responsible for the reduced quality perception of a product. The abrasion can cause lasting damage to the surface and thus leads to a reduction in value and a quality defect of a product. With the TRIBOTOUCH testing device, we simulate the abrasion of the human hand on the finished product. The qualified test statement thus prevents annoying quality defects.

Examination of the new 50 Swiss Franc banknote

Friday, 15 April 2016 / Published in
Tagesanzeiger.ch/Newsnet wanted to know: What can the new 50 note withstand? They commissioned Ugra's testing laboratory to carry out three tests with the brand new banknote.