Cosmetics brush pull-out testing
![Cosmetics brush pull-out [PDV14098] Cosmetics brush pull-out [PDV14098]](/sites/default/files/styles/case_study_gallery_540w/public/case-study/2024-04/1661-PDV14098-4-web.jpg.webp?itok=Auw8uhIp)
![Cosmetics brush pull-out Cosmetics brush pull-out](/sites/default/files/styles/case_study_gallery_540w/public/case-study/2024-04/1557-PDV14098-3.jpg.webp?itok=oBT9txRg)
Customised engineering example
Our client is a major cosmetics company using a variety of brushes for all applications and wished to tensile test the integrity of the bristles.
Gripping the awkwardly-shaped handles and bristle tips in a repeatable way, demanded more than a single standard vice grip.
Mecmesin designed a system of overlapping plates with cutouts for each brush head profile. The plate served to gather and trap the bristles uniformly in a vice action so that they were axially aligned under the loadcell.
A lathe-chuck grip held the handle securely for reliable and accurate pull-off testing.
![Cosmetics brush pull-out [PDV14098] Cosmetics brush pull-out [PDV14098]](/sites/default/files/styles/case_study_gallery_540w/public/case-study/2024-04/1661-PDV14098-4-web.jpg.webp?itok=Auw8uhIp)
![Cosmetics brush pull-out Cosmetics brush pull-out](/sites/default/files/styles/case_study_gallery_540w/public/case-study/2024-04/1557-PDV14098-3.jpg.webp?itok=oBT9txRg)
![Cosmetics brush strength Cosmetics brush strength](/sites/default/files/styles/case_study_gallery_540w/public/case-study/2024-04/490-pdv12118-7.jpg.webp?itok=QJgjGwhb)