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Properties of a new nitrogen-free additive as an alternative to urea and its application in reactive printing / Chenglong Wang in COLORATION TECHNOLOGY, Vol. 138, N° 2 (04/2022)
[article]
Titre : Properties of a new nitrogen-free additive as an alternative to urea and its application in reactive printing Type de document : texte imprimé Auteurs : Chenglong Wang, Auteur ; Yongfang Xian, Auteur ; Hongmei Wang, Auteur ; Minghua Wu, Auteur ; Yijia Wang, Auteur ; Deyou yu, Auteur ; Lili Wang, Auteur Année de publication : 2022 Article en page(s) : p. 137-145 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Additifs
Bleu (couleur)
Colorants réactifs
Eaux usées -- Teneur en azote ammoniacal
Eaux usées -- Teneur en azote total
Formulation (Génie chimique)
Impression sur étoffes
Pâtes d'impression
Produits chimiques -- Suppression ou remplacement
Sérigraphie
Solidité de la couleur
Teinture -- Fibres textiles
Urée
ViscoseIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The development of a urea substitute with little nitrogen has become a hot research topic for cleaner production in reactive printing. In the current study, a mixture made from glycerol and 1,4-butanediol (1:1, w/w), namely, urea substitute glycerol butanediol (USGB), was used instead of urea in the printing paste formulation. USGB’s abilities of moisture adsorption, swelling fibres and solubilisation to reactive dyes were compared with those of urea. The printing properties of USGB on different fabrics with reactive dyes were intensively investigated in comparison with urea and commercial 391-H. The results showed that USGB’s ability to swell viscose fibres was superior to that of urea. When the dosage of USGB was within 8-10 wt% in the printing paste, the colour yield of USGB on viscose fabrics drew near to that of urea and was higher than that of 391-H. During viscose printing of reactive blue dyes with different shades and structures, the colour performance of USGB was close to that of urea and higher than that of 391-H. Furthermore, USGB could obtain good printing effects in deep printing with Reactive Turquoise K-GL on different fabrics. Compared with urea, the content of ammonia-nitrogen and total nitrogen in the printing wastewater using USGB were greatly reduced, which is of huge significance for lowering ammonia-nitrogen emissions in the printing industry. Note de contenu : - EXPERIMENTAL : Materials - Determination of the hybroscopicity, swellability and solubility of printing additives - Reactive printing pastes - Screen printing technique - Printing performance of the printed fabrics
- RESULTS AND DISCUSSION : The hygroscopicity, swellability and solubility of printing additives - Colour performances of printing additives with different dosages in reactive printing - Colour performances of printing additives in different printing pastes - Colour performances of printing additives in viscose printing of different reactive dyes
- Table 1 : The formula of reactive printing paste
- Table 2 : Hygroscopicity, swellability of viscose fibre ans solubilisation to reactive turquoise K-GL using urea and urea substitute glycerol butanediol (USGB) as printing additives
- Table 3 : Colour performances of urea, urea substitue glycerol butanediol (USGB) and 391-H on different fabrics during deep printing with Reactive Turquoise K-GL
- Table 4 : Hand parameters of the printed fabrics using urea, urea substitute glycerol butanediol (USGB) and 391-H as printing additives during deep printing with Reactive Turquoise K-GL
- Table 5 : Colour fastness of the printed fabrics using urea, urea substitute glycerol butanediol (USGB) and 391-H as printing additives during deep printing with Reactive Turquoise K-GL
- Table 6 : Ammonia-nitrogen and total nitrogen content in reactive printing wastewaterDOI : https://doi.org/10.1111/cote.12576 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12576 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37844
in COLORATION TECHNOLOGY > Vol. 138, N° 2 (04/2022) . - p. 137-145[article]Réservation
Réserver ce documentTitanium dioxide grafted with silane coupling agents and its use in blue light curing ink / Lili Wang in COLORATION TECHNOLOGY, Vol. 136, N° 1 (02/2020)
[article]
Titre : Titanium dioxide grafted with silane coupling agents and its use in blue light curing ink Type de document : texte imprimé Auteurs : Lili Wang, Auteur ; Xiaying Jiang, Auteur ; Chenglong Wang, Auteur ; Yi Huang, Auteur ; Yiding Meng, Auteur ; Jianzhong Shao, Auteur Année de publication : 2020 Article en page(s) : p. 15-22 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Angle de contact
Bleu (couleur)
Caractérisation
Dioxyde de titane
Dispersions et suspensions -- Stabilité
Encre
Encre -- Propriétés mécaniques
Fourier, Spectroscopie infrarouge à transformée de
Granulométrie
Greffage (chimie)
Photoréticulation
Réaction de couplage
Rhéologie
Silanes
ThermogravimétrieIndex. décimale : 667.2 Colorants et pigments Résumé : To improve the properties of titanium dioxide particles and realise their firm anchorage in blue light curing film, three modified titanium dioxide particles were prepared by grafting 3-(trimethoxysilyl)propyl methacrylate, 3-aminopropyltriethoxysilane and hexadecyltrimethoxysilane. The surface changes of titanium dioxide particles after modification were characterised. The dispersion stability, photo-polymerisation, rheological and mechanical properties of modified titanium dioxide blue light curing inks were investigated. Results showed that compared with native titanium dioxide, modified titanium dioxide particles were more appropriate for blue light curing ink. The particle sizes of the three modified titanium dioxide particles became smaller, their surfaces exhibited hydrophobicity, and the viscosity of the modified titanium dioxide inks decreased slightly. Of the three modified titanium dioxide particles, 3-(trimethoxysilyl)propyl methacrylate- and hexadecyltrimethoxysilane-modified titanium dioxide particles exhibited better dispersion stability in blue light curing ink. In particular, 3-(trimethoxysilyl)propyl methacrylate-modified titanium dioxide blue light curing ink showed the best photo-polymerisation and mechanical properties, which indicated the participation of the pigment grafted by double bonds in the blue light curable polymerisation. Using modified titanium dioxide in blue light curing ink, the dry/wet rubbing fastness of the printed fabrics improved. Note de contenu : - EXPERIMENTAL : Materials - Grafting of silane coupling agent onto the surface of titanium dioxide particles - Preparation of blue light curing ink - Preparation of blue light curing - Characterisations
- RESULTS AND DISCUSSION : FT-IR spectroscopy of modified titanium dioxide - Thermogravimetric analysis of modified titanium dioxide - Elemental analysis of modified titanium dioxide - Particle size analysis of modified titanium dioxide - Contact angle analysis of modified titanium dioxide - Dispersion stability of modified titanium dioxide - Rheological porperties of modified titanium dioxide bluelight curing inkDOI : https://doi.org/10.1111/cote.12434 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12434 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33696
in COLORATION TECHNOLOGY > Vol. 136, N° 1 (02/2020) . - p. 15-22[article]Réservation
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