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Preparation and efficacy verification of three-dimensional printed partitioned multi-effect precision-care gel facial mask / Junli Chen in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 46, N° 2 (04/2024)
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[article]
Titre : Preparation and efficacy verification of three-dimensional printed partitioned multi-effect precision-care gel facial mask Type de document : texte imprimé Auteurs : Junli Chen, Auteur ; Chunqiao Liufu, Auteur ; Wenfang Zhang, Auteur ; Chunhong Luo, Auteur ; Kaixia Fu, Auteur ; Jianchang Lin, Auteur ; Jiawei Liang, Auteur ; Wei Yang, Auteur ; Fenglan Song, Auteur ; Fan Yang, Auteur Année de publication : 2024 Article en page(s) : p. 209-227 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cosmétiques
Dermo-cosmétologie
Gels -- Emploi en cosmétologie
Impression tridimensionnelle
Masques (cosmétique)
Peau -- Soins et hygiène
Visage -- Soins et hygièneIndex. décimale : 668.5 Parfums et cosmétiques Résumé : - Objective : A partition multi-effect precision-care gel facial mask conforming to facial skin characteristics was prepared using three-dimensional (3D) printing technology.
- Methods : First, the hydrogel matrix and humectant of a 3D-printed gel for facial masks were screened, and three 3D-printed gels of arbutin, hexapeptide, and salicylic acid were prepared with whitening, wrinkle removal, and oil control functions, respectively. Skin irritation tests were performed on the gels. Physicochemical properties such as pH, heat and cold tolerance were evaluated. The efficacy of three 3D-printed gels was assessed by measuring melanin value, wrinkle depression score, and oil secretion. Finally, the facial mask model design and printing parameters were studied, and a partition multi-effect precision-care gel facial mask was printed in line with facial skin characteristics.
- Results : For the 3D-printed facial mask, the gel prescription with 2% hydroxyethyl cellulose gel as matrix and 7% glycerol as humectant was the best. The prepared 3D-printed gel did not irritate the human skin, and its physicochemical properties met the Chinese facial mask industry standard (QB/T2872-2017). We showed that three types of 3D-printed gels containing arbutin, hexapeptide, and salicylic acid could be applied to the corresponding parts of the face to solve different problems, such as facial skin dullness, wrinkles, and oil secretion. Therefore, according to facial physiological characteristics, the facial mask model was designed for the forehead and nasolabial fold, which needs to be anti-wrinkled; the cheek, which needs to be whitened; and the nose and chin, which need oil control. The optimal printing parameters were 0.26 mm nozzle diameter, 90 mm/s printing speed, 30% filling density, 140% wire extrusion ratio, and 0.25 mm layer height. Different skin care effects can be achieved using a three-nozzle printer to print arbutin, hexapeptide, or salicylic acid gel on the mask's forehead and nasolabial fold, cheek, and nose and chin, respectively.
- Conclusion : The 3D-printed partition multi-effect care gel facial mask prepared according to the skin features of different parts of the face can overcome the problem of the single skincare effect of the mass-produced facial masks.Note de contenu : - MATERIALS AND METHODS : Materials - Screening of facial mask gel matrix - Screening of humectants in facial mask formulations - Characterization of physicochemical properties of facial mask gel - Model design and 3D printing of partition care facial mask - Screening of facial mask 3D printing parameters - Skin irritation test of facial mask gel - Efficacy evaluation of facial mask gel - Whitening efficacy verification - Anti-wrinkle efficacy verification - Oil control efficacy verification - Statistical analysis
- RESULTS : Screening results of 3D facial mask gel matrix - Screening results of facial mask humectants - Test results of physicochemical properties of facial mask gel - Screening of 3D printing parameters and
preparation of partition care facial mask - Skin irritation test results of facial mask gel - Efficacy evaluation results of facial mask gelDOI : https://doi.org/10.1111/ics.12925 En ligne : https://drive.google.com/file/d/1JhXfAJ8dsok-vfL4v-OclUkrqUcN6xJ3/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40908
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 46, N° 2 (04/2024) . - p. 209-227[article]Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire Preparation of polysiloxane coating for laser application with improved curing property based on copolymerization modification / Tian-Yu Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 4 (07/2022)
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Titre : Preparation of polysiloxane coating for laser application with improved curing property based on copolymerization modification Type de document : texte imprimé Auteurs : Tian-Yu Wang, Auteur ; Wei Yang, Auteur ; Hao-Hao Hui, Auteur ; Xiang-Yang Lei, Auteur ; Qing-Hua Zhang, Auteur ; Jian Wang, Auteur ; Qiao Xu, Auteur ; Xue-Ran Deng, Auteur Année de publication : 2022 Article en page(s) : p. 1233-1241 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Copolymérisation
Lasers -- Applications industrielles
Nanoparticules
Revêtement antireflet
Revêtements -- Propriétés mécaniques
Revêtements multicouches
SiliceLa silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux.
La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...).
Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale.
SiliconesLes silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki).
Sol-gel, ProcédéIndex. décimale : 667.9 Revêtements et enduits Résumé : The sol-gel method is an important process for the preparation of laser frequency conversion components, such as dihydrogen phosphate (KDP), which are often employed in high-power laser facility. Methyltriethoxysilane (MTS) precursor is a typical matrix to prepare polysiloxane under hydrolysis and polycondensation process. Further coating and curing procedure is applied to obtain desired polysiloxane coating which acts as the moisture-proof and refractive index matching layer. Subsequently, an antireflective coating is prepared over this polysiloxane coating (a bilayer coating system) to realize ultrahigh transmission at desired wavelengths. Due to the low curing temperature (limited by the phase transition temperature of KDP), current MTS-polysiloxane coating could not be completely cured and inter-coating permeation between this bilayer coating system would lead to deterioration of coating properties. Thus, copolymerization of MTS and tetraethylorthosilicate (TEOS) is adopted to fabricate the polysiloxane coating with improved curing property (denser structure and higher hardness after curing). It is found that under certain molar ratio of MTS to TEOS, the structure of modified polysiloxane coating could be effectively densified and the coating hardness increases significantly. Meanwhile, the bilayer coating system still exhibits excellent transmission, high laser-induced damage threshold as well as satisfactory moisture resistance. Note de contenu : - MATERIALS AND METHODS : Materials - Synthesis of polysiloxane solution - Preparation of silica nanoparticle sol - Fabrication of polysiloxane coating and antireflective bilayer coating system - Characterization
- RESULTS AND DISCUSSION : Synthesis process - Molecular structure of polysiloxane - Mechanical properties - Bilayer performanceDOI : https://doi.org/10.1007/s11998-021-00605-7 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00605-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38050
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