4. Functional properties and physicochemistry

4.1 Sensory and functional properties

Consumer demands, coupled with regulations, have made it possible to identify the essential properties that a varnish must have, namely: color, homogeneity, consistency, odor, spreadability, appearance, drying, filming, opacity, gloss, durability and, more recently, human and environmental safety. These properties are referred to as sensory or applicative, and derive mainly from how the person using the product feels about it. Figure 14 summarizes the applicative properties of nail polish and the constituents that have the greatest impact on each of these properties.

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Performance tests

Bibliography

(1) - GUPCHUP (G.V.), ZATZ (J.L.) - Structural characteristics and permeability properties of the human nail. - A review, J. Cosmet. Sci. 50, p. 363-385 (1999).
(2) - MATHIEU (M.) - Influence des cosmétiques sur la qualité de vie : préférence de l'association...

Websites

http://www.legifrance.gouv.fr

http://www.cosmebio.org

http://cosmeticsandskin.com/ded/polish.php

https://cosmeticobs.com/fr/

...

Events

Perfumes and Cosmetics Congress – Regulatory issues, takes place every year in Chartres, France.

http://www.congres-parfumscosmetiques.com/fr/

Cosmetagora tradeshow, held every year in Paris

http://www.cosmetagora.fr/

...

Regulations

Directive 2004/42/EC of the European Parliament and of the Council on the limitation of emissions of volatile organic compounds due to the use of organic solvents in certain paints and varnishes and vehicle refinishing products and amending Directive 1999/13/EC, since incorporated into Directive 2010/75/EU.

Regulation (EC) No 1907/2006 of the European Parliament and of the Council of 18 December 2006...