Durable surface functionalisation and pigment coloration of cellulosic fabrics using bioactive additives / Nabil A. Ibrahim in COLORATION TECHNOLOGY, Vol. 137, N° 6 (12/2021)  

[article]  inCOLORATION TECHNOLOGY > Vol. 137, N° 6 (12/2021) . - p. 645-657 Titre : Durable surface functionalisation and pigment coloration of cellulosic fabrics using bioactive additives Type de document : texte imprimé Auteurs : Nabil A. Ibrahim, Auteur ; Enas M. R. El-Zairy, Auteur ; Basma M. Eid, Auteur ; Shimaa S. Abd Allah, Auteur Année de publication : 2021 Article en page(s) : p. 645-657 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Additifs Additifs anti rayonnement ultraviolet Additifs biosourcés Aloe vera et constituants Antibactériens Arganier et constituants Caractérisation Fibres cellulosiques Gingembre et constituants Jojoba et constituants Neem et constituants Pigments Résistance au lavage Surfaces fonctionnelles Teinture -- Fibres textiles synthétiques Index. décimale : 667.3 Teinture et impression des tissus Résumé : The main goal of this study is to develop a facile eco-friendly method for antibacterial/ultraviolet (UV)-blocking functionalisation using various green bioactive functional additives namely neem, jojoba, argan, aloe vera, ginger, and tulsi. In addition, pigment coloration of cellulosic substrates including cotton, viscose, cotton/viscose, and cotton/linen using pigment colourants and appropriate printing auxiliaries in one step was used. The experimental results revealed that the durability, improvement in the imparted antibacterial/UV-blocking functional properties and enhancement in the depth of the obtained pigment prints followed a decreasing order: tulsi > ginger > aloe vera > argan > jojoba > neem ≫ none, keeping other parameters constant. The obtained data also demonstrated that the developed pigment prints exhibited remarkable functionalities and depth of shade after 15 washing cycles. Moreover, it was observed that improvement in the imparted functional and coloration properties were a function of types of cellulosic substrate and the kind of colourant. Scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX) analysis for selected samples confirmed the surface modification, morphology changes and immobilisation of the used active ingredients onto the treated substrates. Note de contenu : - EXPERIMENTAL : Materials - Methods - RESULTS AND DISCUSSION : Type and concentration of the natural functional additive - Effect of natural additive type and kind of cellulosic blend - Type of pigment colourant - Durability to wash - Characterisation DOI : https://doi.org/10.1111/cote.12555 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12555 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36794 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
23068	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Study of the swelling of a composite based on argan nut, urea-formaldehyde and water as a non-polluting solvent / Fouad Babty in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 31, N° 5 (10/2021)  

[article]  inREVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 31, N° 5 (10/2021) . - p. 297-300 Titre : Study of the swelling of a composite based on argan nut, urea-formaldehyde and water as a non-polluting solvent Type de document : texte imprimé Auteurs : Fouad Babty, Auteur ; Abdelilah Hachim, Auteur ; M'barka Mourabit, Auteur ; Soumia Mordane, Auteur ; Amina Bettachy, Auteur ; Abdeslam El Assyry, Auteur Année de publication : 2021 Article en page(s) : p. 297-300 Note générale : Bibliogr. Langues : Français (fre) Catégories : Arganier et constituants Biomatériaux Composites à fibres végétales Copolymère urée formaldéhyde Coquille de noix d'argan Gonflement (physique) Index. décimale : 668.4 Plastiques, vinyles Résumé : In the center and southwest of Morocco, there is an endemic tree "Argania Spinosa" known as the ironwood. The miraculous product of this millenary tree is argan oil. Known for its therapeutic and cosmetic properties. Only 20% of the fruit of the argan tree is intended for the manufacture of argan oil while the shell, which represents 80%, remains an unexploited resource. This hull, which is sold by farmers at low prices, is used as fuel for baths and Moorish bakeries. In order to value the shells ; first, we sort, grind and sieve them. Second, we bind the particles into adhesive. Three biomaterials are based on three particle sizes of shell grains. The designed particles are bound with an adhesive powder that is produced from a pre-catalyzed urea-formaldehyde resin. Moreover, the water used is a non-polluting solvent. The biomaterials and two samples of Red and Beech Wood were immersed in water for 15 days, with mass measurements that were done on a daily basis. It was concluded that the swelling coefficient of the large distribution of biomaterial is smaller than the small distribution of biomaterial. However, Red and Beech Wood have the highest coefficient. Note de contenu : - Procedure - Swelling rate measurement - Table 1 : Nut-shells of Argan particles distribution 3. Results and Discussion DOI : https://doi.org/10.18280/rcma.310505 En ligne : https://www.iieta.org/download/file/fid/63485 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37687 [article]

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire

Vitalisation of dermal stem cells for skin rejuvenation / Daniel Schmid in PERSONAL CARE EUROPE, Vol. 4, N° 3 (09/2011)  

[article]  inPERSONAL CARE EUROPE > Vol. 4, N° 3 (09/2011) . - p. 99-101 Titre : Vitalisation of dermal stem cells for skin rejuvenation Type de document : texte imprimé Auteurs : Daniel Schmid, Auteur ; Esther Belser, Auteur ; Fred Zuelli, Auteur Année de publication : 2011 Article en page(s) : p. 99-101 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Arganier et constituants Cellules souches Cellules végétales Dermatologie Peau -- Soins et hygiène Index. décimale : 668.5 Parfums et cosmétiques Résumé : Stem cells are unspecialised cells with the capacity to self-renew over the whole life period of the organism. When needed, stem cells produce cells that undergo differentiation to specialised tissue cells. Only embryonic stem cells are pluripotent, meaning that they can develop into all cell types of the body, and are thus capable of forming an entire organism. In adult tissues, only multi- or unipotent stem cells are found, indicating that they can differentiate into more than one cell type or only one cell type, respectively. Stem cells are found in virtually all adult tissues where they are responsible for a continuous supply of new cells essential for repair and regeneration. Because adult stem cells are an ethically correct source, research on stem cells of adult tissues has advanced considerably in recent years and new findings are revolutionising the field of regenerative medicine. Note de contenu : - The rarely explored stem cells of the dermis - A new assay to measure dermal stem cell activity - Plant tissue culture technique to produce Argan cell material - Stem cells of the argan tree for vitalisation of human dermal stem cells En ligne : https://drive.google.com/file/d/11PmfSdH9u86Ng4gHQCgWaZQ3TQsSc4jv/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12855 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
13351	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 3 / 3)