The present invention relates to the use of a viscose fibre for the production of a transparent cosmetic mask. The viscose fibre is a flat fibre, the cross-section of the viscose fibre has a width-to-thickness ratio of 6:1 to 30:1, and the titre of the viscose fibre ranges from 1.0 dtex to 4 dtex.本發明是關於一種用於透明美容膜產品的黏性纖維的應用。此黏性纖維是一種扁平纖維,黏性纖維的剖面的寬厚比為6:1至30:1,且黏性纖維的纖度介於1.0 dtex至4 dtex之間。