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Poster De Conférence Année : 2023

Valorization of flax shives in cosmetic: creation of an innovative secondary packaging

Résumé

The LENEFIN collaborative project involves designing of flax based perfume by u tilizing flax principally produced here in Normandy , ideally two products : fragrance and secondary packaging. The project consortium worked to explore the whole flax plant for its possible valori z ation [1]. About secondary packaging part , the obje ctive is to develop a modular and sustainabl e secondary packaging through employin g an eco design approach which is co nsisting of a central cylinder composed of long woven flax fibers and a base a s well as a lid of identical shape produced from a mineral matrix s upplemented with flax shives, a by product obtained during its scutching [2]. The work pres ented here will concern the base and the lid of the packaging. To achieve the desired shapes, the v iscosity of the optimiz ed formulation must allow the realization b y molding. The formulation of th e basic c ement matrix is as follows: 55% standard cement 42.5 MPa ; 45% fine sand 0 2 mm . The role of sand is to maintain proper mechanical strength and provid e a visually interesting mortar texture. This also makes it possib le to avoid a smooth t exture of a cement paste alone, which already exists i n t he market. To this basic mineral matrix, various concentrat ions of raw, crushed and mineralized flax shives [3; 4] ranging from 5 to 15% were attained Figure 1 ). Mechanical tes ts (compressive and flexural strength) at 28 days of hard ening as well as wetting drying test s to evaluate the resistance to water and temperature were carried out for all the formulations. The results indicat ed that 6% of flax shives previously crushed to 2 mm is the optim al dosage, whi le it was 8% in case of mineralized flax shives . The water resistance tests have also demonstrated a high resistance to water for all the formulations, which is extremely positive for use in a high humidity environment , thus mak ing it possible to envisage a wide range of applications for a second life.
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hal-04254868 , version 1 (23-04-2024)

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Feriel Bacoup, Hafida Zmamou, Séverine Tisse, Pascal Cardinaël, Nathalie Leblanc, et al.. Valorization of flax shives in cosmetic: creation of an innovative secondary packaging. Cosm'innov 2023, May 2023, Orléans, France. Unpublished, International Journal of Cosmetic Science, 2023, ⟨10.13140/RG.2.2.24515.99362⟩. ⟨hal-04254868⟩
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