Tuurlijk weet ik een antwoorD op deze vraag (antwoord is geen werkwoord, maar een zelfstandig naamwoord): eerste hit in google gaf de volgende (Engelse) uitleg:
Polyamide powder is a chemically inert (about pH 7) very pure Nylon-6 powder produced by sophisticated proprietary Direct Polymerisation Technology. The manufacturing process yields a cosmetic grade ingredient of a uniform particle structure and of a very tight size distribution near 7 µm. Its chemical purity, pH and inert character result in a material suited for a wide range of personal care applications.
Polyamide powder forms a uniform thin, non-occlusive layer of spherical particles when applied to the skin, leaving an elegant and silky feel. Its nearly spherical shape, optimum size and narrow particle size distribution will not interrupt the routine but vital physiological exchange of gases and liquids between the skin and the external environment.
Polyamide powder can easily be incorporated into all types of loose and pressed or compacted powder products. It is also ideal for virtually all forms of pigmented cosmetic and for emulsions, gels, or serums. Its structure, porosity and lipophilic nature make it an excellent choice for sebum control positioning.
Bron:
http://www.com.hide.cz/alchimica/e/chemie_7.html
