Cosmetics brush pull-out testing

14 Jun 2019
Mecmesin
www.mecmesin.com/publications/cosmetics-brush-pu...

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.

Caption: Images show brush pull-out and strength tests.

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Page pull strength test

Mecmesin collaborated with a customer to design and develop a force measurement system to determine book binding adhesive strength in retaining individual pages.

Jo Webb
Product Info
English
Created 14 Jun 2019
Modified 07 Dec 2021
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Cosmetics brush pull-out testing

See also

Fast food tray crush testing

Top-load testing of plant-based PLA material bottles

Tensile testing wire joining systems

Extreme sports waterproof bio-textile mechanical properties

Automated syringe break-loose and glide force system

Edge Crush Test (ECT) of corrugated cardboard

Wine can pop-and-tear opening force

Release torque testing of Champagne and sparkling wine corks

Adhesive test on capsulated cork stoppers

Vial stopper needle penetrability residual seal force and torque testing

Torque testing CRC closures with a pneumatically-controlled downward force

PET Screen Protector Release Liner Peel Testing

Lipstick shear force resistance

Hand sanitiser dispenser pump testing

Adhesion peel strength of COVID-19 tapes and stickers

Peel strength of foam band on PPE face visors

Edge Crush Test (ECT) of corrugated cardboard

Break-loose and sustaining force tests of pre-filled drug cartridges to ISO 11608-3

Vaccine delivery device and packaging testing

PET preforms - repurposing production for COVID-19 test kits

Probiotic drink packaging testing

Testing Ventilator and Breathing Assistance Apparatus Components

Face mask strength testing

Pharmaceutical tablet crush and break strength

Surgical rubber glove tensile strength testing

Lipstick tube force and torque testing

Mecmesin's materials testers

Top-load crush of plastic bottle with semi-automated test process

Dispensing pump assembly testing

Powdered drink container - Mecmesin's compressive strength & lid peel tests

Retort packaging 90 degree peel and lid strength testing

Page pull strength test

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