High electrical conductivity waterborne inks for textile printing / Muhammad Ali in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 5 (09/2019) . - p. 1337-1349 Titre : High electrical conductivity waterborne inks for textile printing Type de document : texte imprimé Auteurs : Muhammad Ali, Auteur ; Long Lin, Auteur ; D. Cartridge, Auteur Année de publication : 2019 Article en page(s) : p. 1337-1349 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation Conduction électrique Dispersions et suspensions Encre d'imprimerie Encre en phase aqueuse Essais (technologie) Impression sur étoffes Liants Noir de carbone Pigments Textiles et tissus à usages techniques Index. décimale : 667.2 Colorants et pigments Résumé : Printing of conductive inks is an attractive means of manufacturing of electronic components on flexible substrates including textiles. The textiles thus produced are often referred to as “e-textiles.” When high electrical conductivity is required, inks are preferably made from metal nanoparticles such as silver. However, such inks are expensive and generally not known to withstand severe washing and wearing to which textiles are normally subjected during the end use. In the present study, which forms a part of a larger study by the authors, waterborne dispersions of conductive grades of carbon black were converted into finished inks followed by washing and creasing tests to ascertain the durability of these inks. We found that not only were the inks stable after letdown with different binders, but they possessed high electrical conductivity despite the fact that the final pigment loading in all of the formulated inks was significantly less than the pigment loading that is generally found in commercial conductive inks. In addition, the electrical conductivity after washing and creasing tests of the formulated inks was found to be significantly greater than that of the tested commercial conductive inks. This shows that using large surface area, highly conductive grades of carbon black pigments in relatively small amounts in inks for textile printing is beneficial in achieving some of the critically required characteristics, particularly those pertaining to durability of the ink film. Note de contenu : - MATERIALS : Pigment dispersions - Binders - Commercial conductive inks - Substrates - METHODS : Letdown procedure to formulate finished inks - Sample preparation - Durability testing of inks - Electrical characterization - RESULTS AND DISCUSSION : Letdown stability of finished inks - Printing and testing on textile substrates - Resistivity of multiple ink layers DOI : 10.1007/s11998-019-00214-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-019-00214-5.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33015 [article]

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Identification and characterisation of Aspergillus sp. from leather / Muhammad Ali in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 105, N° 6 (11-12/2021)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 105, N° 6 (11-12/2021) . - p. 307-311 Titre : Identification and characterisation of Aspergillus sp. from leather Type de document : texte imprimé Auteurs : Muhammad Ali, Auteur ; Faiza Sharif, Auteur ; Ahmad Ali Shahid, Auteur ; Muhammad Adnan Zafar, Auteur ; Muhammad Asif, Auteur Année de publication : 2021 Article en page(s) : p. 307-311 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Aspergillus Caractérisation Champignons microscopiques -- Identification Champignons pathogènes Cuirs et peaux -- Détérioration Cuirs et peaux de bovins Cuirs et peaux de buffles Cuirs et peaux de chèvres Cuirs et peaux de moutons Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Species of the genus Aspergillus are commonly known to be responsible for the degradation of tanned leather. In this study five species of Aspergillus (A. fumigatus, A. niger, A. flavus and A. ochraceopetaliformis) were isolated from tanned leather pieces of cow, goat, sheep and buffalo respectively. Among the isolated species A. ochraceopetaliformis was the first time reported from Pakistan. These isolated fungal strains were initially identified by their morphological and microscopic studies (conidial formation, conidial shape, size, colour, vesicle shape etc.) and then by means of molecular tools including genomic DNA isolation, PCR amplifications, genome sequencing and sequence analysis. Sequences were submitted to NCBI GenBank and accession numbers were assigned by NCBI. Phylogenetic analysis was also performed in order to calculate the percentage similarity as well as variation among the isolated species. Note de contenu : - MATERIAL AND METHODS : Collection of leather samples - Isolation of mycoflora - Molecular identification DNA isolation and amplification - PCR amplification - ITS data analysis - RESULTS : Morphological and microscopic identification of pathogenic fungi - Colony - Microscopic features - Table 1 : PCR amplification - Table 2 : Morphology and microscopy of leather degrading species of the genus aspergillus En ligne : https://drive.google.com/file/d/1sDLJtpYdUcYk1U48YAMWdrXv4UTQZRmF/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36723 [article]

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