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Cosmetics and personal

Mecmesin Solutions for Testing in Cosmetics and Personal Care

The performance and quality of cosmetics, in the same way as food texture analysis, can be tested for objectively. Texture data from products subjectively tested as meeting the right customer expectations can be applied to computerised mechanical testing. This can then be applied to product formulation and routine quality testing for reliable, accurate and repeatable results.

One feature of many cosmetics is their integration with packaging, so that the packaging is also a dispenser, whether a twist delivery as for lipsticks, a pull-off cap for a lip tint, an applicator brush as for mascara, or a roll-on for antiperspirant. Many suitable tests for these can be found under consumer packaging.

See also:  Transit Packaging

 Test to international test standards or internal design specification.


cosmetics-personal

See examples of our capabilities

Click these examples of products our clients are testing using Mecmesin systems

 

Brushes


Affordable testers and expert service, for brushes

pull off pullout Flexure bend coefficient of friction    
pull-off / pull-out flexure friction    

The quality of all brushes is in their ability to provide a lasting flexible contact with the intended surface. From a resilience point of view, tufts and bristles need to provide a consistent bending force, and remain separated and without fracturing or shedding of filaments. Handles and heads can be tested for bending strength, filaments can be flexed, and surface friction measured. How good are your brushes for their intended tasks?
Mecmesin testing machines can flexibly perform any of these tests, whether for the largest industrial machine brush heads, a paintbrush, toothbrush, or very small wire-wound surgical or cosmetics brush.

 
 

 

Closures, caps, corks and stoppers


Affordable testers and expert service, for closures, caps, corks and stoppers

closure torque test penetration test pull-off pull-out test tensile strength test torque to turn test
closure torque penetration resistance pull-off / pull-out tensile strength torque to turn

Are your closures working for your customers? How likely are leaks or customer frustrations with difficulty in openability? Regular testing is affordable and protects brand integrity . Consumer packaging, especially in beverages, cosmetics and pharmaceuticals, employs a wide variety of closures, from flip-caps to wine corks. Many are fitted with tamper-evident, pilfer-proof or child-resistant features.

Testing for design, quality assurance, or for the closure process, require rapid turn-around with fixtures that may require an element of customisation for best fit. Mecmesin testers range from digital cap-testing instruments operated by hand, to semi-automated torque and force machines to remove cork stoppers. With Mecmesin’s Emperor™ control and data analysis software and a Vortex torque tester, slip torque, bridge torque, removal torque and reverse ratchet torque can all be measured, to understand the total performance of a screw-cap closure. Flip caps, push-fit closures and elastomeric vial closures can all be measured using Mecmesin MultiTest stands, for tensile measurement.

 

Visit our new dedicated site for closure testing, focused on the specific requirements for the quality testing of all types of closures.

 

 
 

 

Cosmetics


Affordable testers and expert service, for cosmetics

penetration resistance test pull-off pull-out test      
penetration resistance pull-off / pull-out      

If your cosmetics products are only subjectively tested by experts, you could benefit by capturing the experience and applying it as objective test data. In many respects, cosmetics are like food when it comes to testing. Texture, strength, resistance to penetration, spreadability, firmness etc. are all features requiring regular production-line testing. Preparations are formulated, and typically poured, formed and compressed for daily, repeated use. At the formulation stage, testing the texture of the product against objective data relating to customer expectation is vital for product consistency and improvement.

Mecmesin testers provide the ability to capture the objective data underlying user experience, and use this in preference to reliance on subjective testing. Mecmesin universal testers are also available with touch-screen operation, making them ideally suited to production environments.

 
 

 

Cosmetics packaging


Affordable testers and expert service, for cosmetics packaging

compressive burst test flexure bend test friction test peel test puncture resistance test
compressive burst flexure friction peel puncture resistance

What is the end-user experience of your cosmetics packaging towards end of use? Working well, or falling apart? Testing both helps your design and your quality assurance. Cosmetics packaging frequently features the means of application and dispensing, including propelling lipsticks, mascara brushes, pumps, sprays, and rollers. Many are designed for repeated use over considerable time. Mecmesin testers can meet the needs of the very light torque for a lipstick, through to the variety of tests required for assessing the integrity of more complex multi-part applicators.

 
 

 

Manual pump and spray dispensers


Affordable testers and expert service, for manual pump and spray dispensers

compression test        
compression        

Many of us know the frustration of a trigger spray or pump dispenser that simply does not work properly. Is your brand on that new, full container of a favourite product that’s going nowhere? Point of production testing ensures quality and protects customer confidence. Even a simple pump dispenser has around 10 components which may not be from a single source, and maybe you buy in your pump tops complete.

Quality assurance testing of pump and spray assemblies can show up potential problems, long before the production line has filled 10,000 faulty containers for despatch. Any drift away from specification in a batch can be detected for immediate investigation before faulty products are fitted. Mecmesin compression testers at the production line can be programmed for rapid sample throughput, applying instant-access programs run at the touch of a button.

 
 

 

Metal bottles and containers


Affordable testers and expert service, for metal bottles and containers

puncture test topload      
puncture resistance top-load      

The recyclability of metals makes them suitable for many containers, where rigidity and heat sensitivity, or resilience to contents also matter. As with any packaging, minimising the amount of metal required is an important element. Knowing the safe stacking height is important for storage, as is knowing the resistance to lateral forces in use.

International standard methods for column crush are reliably applied using Mecmesin MultiTest universal testers, with all the versatility for performing related test requirements on closures and transit packaging.

 
 

 

Plastic components and subassemblies


Affordable testers and expert service, for plastic components and subassemblies

compression test pull-off pull-out test tensile strength torque to turn  
compression pull-off / pull-out tensile strength torque to turn  

The only way to test the resilience of many products is to subject them to forces beyond specification, as complete assemblies. It is one thing to test component parts, but how they interact in a complex assembly can be less predictable. It may be the integrity of the item that requires being pulled, pushed or twisted, or a moving part needing to be taken to extremes, but it is the working of the whole together that needs testing.

Does one part distort or break first, and what does this lead to as a consequence? Mecmesin MultiTest tension and compression testers can apply forces from less than 1 kN up to 50 kN. The Emperor™ control and analysis software provides fully-programmed repeatable testing, with complete detail in the response of the assembly to the applied forces. The same tester can be used in tension of compression to apply a variety of tests, with programs recalled at the touch of a button.

 
 

 

Plastic bottles and containers


Affordable testers and expert service, for plastic bottles and containers

compressive burst test puncture resistance test top-load crush test    
compressive burst puncture resistance top-load    

How are you top-load testing your bottles? Will those sachets burst if they are packed too tightly? What are your stacking limits based on? Plastic bottles and containers combine attractive design with precise engineering to ensure economy of materials with user-attractiveness, ease of use, packing density, and strength.

Wall thickness and profiling are carefully adjusted, but physical testing ensures best design and quality assurance in production. Mecmesin test systems are designed for ease of use on the production floor in quality control, where repeated and rapid testing is required.

 
 

 

Seals and seams


Affordable testers and expert service, for seals and seams

compressive burst test lap shear test peel adhesion test pull-off pull-out test tensile strength
compressive burst lap shear peel pull-off / pull-out tensile strength

Seals and seams, whether elastic, adhesive or welded, are designed to hold under various forces that may drive or pull them apart. Failure may be due to internal pressure, peeling or tensile shear. Some seals are designed to fail at a given force, either for opening or to release pressure for safety. In all cases, the point of failure is important, and for all test types there is a suitable Mecmesin MultiTest, computer-controlled for repeatable testing at the touch of a button. Routine testing of seal strength is a vital part of quality assurance, and is best done at the point of production.