Product category:
R&D, Test and Evaluation Services
News Release from: Lloyd Instruments | Subject: LFPlus
Edited by the Processingtalk Editorial
Team on 22 November 2004
Breaking news on Lipstick production
tests
The formulations and production processes used in the manufacture of lipsticks play a key role in the strength of the final product: testing measures resistance to breaking whilst in use
The formulations and production processes used in the manufacture of lipsticks play a key role in the strength of the final product Of particular importance is resistance to breakage while the lipstick is in use
This article was originally published on Processingtalk on 18 May 2004 at 8.00am (UK)
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Leading cosmetics manufacturers in France have purchased the Lloyd Instruments LFPlus materials testing machines equipped with a special grip for lipstick testing.
These high performance systems are used both in product development and quality control.
The special grip was developed by Lloyd Instruments S.A.S., France, in close co-operation with the cosmetics houses.
The fixture is supplied in two parts and will accommodate lipsticks up to 20 mm diameter.
The lower part of the fixture provides a gripping mechanism to hold the main part of the lipstick during the test, while the upper fixture is an inverted "Y" shape and attaches directly to the loadcell.
By applying a force directly to the lipstick using this fixture, a bending action can be simulated which is equivalent to that experienced by the product when in use.
The break strength can then be measured.
The fixture has a maximum capacity of 50 N and is therefore perfectly suited for use with the LFPlus single column universal materials tester, which is designed for material testing and force measurement applications up to 1 kN (225 lbf).
Test speeds range from 0.05 to 1270 mm/min with an accuracy greater than 0.2%.
Tests can be fully automated through the addition of Nexygen MT control software.
Other tests that can be perfomed using the instrument are the burst strength of cosmetic tubes and the extrusion force of cosmetic products in tubes. Request a free brochure from Lloyd Instruments ...
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