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A hemicyanine fluorescent reactive cationic dye : synthesis and applications on wool fabrics / Wei Zhang in COLORATION TECHNOLOGY, Vol. 131, N° 4 (08/2015)
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Titre : A hemicyanine fluorescent reactive cationic dye : synthesis and applications on wool fabrics Type de document : texte imprimé Auteurs : Wei Zhang, Auteur ; Yan Zhang, Auteur ; Yanqiu Cheng, Auteur ; Chuanxiang Qin, Auteur ; Guoqiang Chen, Auteur Année de publication : 2015 Article en page(s) : p. 316-321 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Colorants -- Propriétés tinctoriales
Colorants -- Synthèse
Fluorescence
Hemicyanine
Laine
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : A novel hemicyanine fluorescent reactive cationic dye was synthesised by the reaction between the free amino group of a hemicyanine fluorescent dye and 2,3-dibromopropionyl chloride. The dye was characterised by proton nuclear magnetic resonance spectroscopy, high-resolution mass spectrometry, ultraviolet-visible absorption spectrometry, and single-photon fluorescence spectrometry. The prepared dye was applied to wool fabrics to give fluorescent orange shades. The colour fastness of the dyed wool fabrics was tested. Results show that dyed fabrics using the novel hemicyanine fluorescent reactive cationic dye could be used as fluorescent clothing. Note de contenu : - EXPERIMENTAL : Materials - Synthesis - Dyeing process - Measurements
- RESULTS AND DISCUSSION : Characterisation - Dyeing properties - Fluorescent properties of the dyed wool fabricsDOI : 10.1111/cote.12159 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12159 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24432
in COLORATION TECHNOLOGY > Vol. 131, N° 4 (08/2015) . - p. 316-321[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17353 - Périodique Bibliothèque principale Documentaires Disponible Hemp-based lyocell fiber for apparel application / Frank Meister in CHEMICAL FIBERS INTERNATIONAL, Vol. 70, N° 4 (12/2020)
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Titre : Hemp-based lyocell fiber for apparel application Type de document : texte imprimé Auteurs : Frank Meister, Auteur ; Birgit Kosan, Auteur ; Ina Sigmund, Auteur ; Jürgen Paulitz, Auteur Année de publication : 2020 Article en page(s) : p. 133-135 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Chanvre et constituantsLe chanvre ou chanvrier (Cannabis sativa L.) est la seule espèce du genre botanique Cannabis. Ce terme latin est souvent utilisé aussi comme nom vernaculaire pour distinguer les variétés de chanvre cultivé à usage industriel des variétés de cannabis à usage récréatif ou médical. C'est une espèce de plante annuelle, de la famille des Cannabaceae. La graine de chanvre s'appelle le chènevis.
Fibres cellulosiques
FilatureIndex. décimale : 677.5 Autres textiles Résumé : A sustainable and environmentally friendly cellulose man-made fiber based on new hemp dissolving pulps was developed by a German-Czech project consortium. The Lyohemp fibers exhibit very good dyeing properties and humidity management and high-comfort wearing characteristics. Note de contenu : - Table 1 : Characteristics of developed hemp pulp
- Table 2 : Spinning dope and fiber characteristics of developed Lyohemp fibers
- Fig. 1 : Process condition and decrease of lignin content while modified soda cooking process
- Fig. 2 : Changes in MWP and DP of hemp pulp by enzymatic treatment
- Fig. 3 : Properties of Lyohemp yarns compared to natural hemp fiber and cellulose man-made fiber yarns
- Fig. 4 : Knitted women's nightdress made of 100% LyoHempEn ligne : https://drive.google.com/file/d/10mNDEYnPLLrR0HQSoL3PbDUjRmZSHgak/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35021
in CHEMICAL FIBERS INTERNATIONAL > Vol. 70, N° 4 (12/2020) . - p. 133-135[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22511 - Périodique Bibliothèque principale Documentaires Disponible 22474 - Périodique Bibliothèque principale Documentaires Disponible Heterologous expression of alkaline metalloproteinases in bacillus subtilis sck6 for eco-friendly enzymatic unhairing of goatskins / Shihao Zhang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 3 (03/2022)
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Titre : Heterologous expression of alkaline metalloproteinases in bacillus subtilis sck6 for eco-friendly enzymatic unhairing of goatskins Type de document : texte imprimé Auteurs : Shihao Zhang, Auteur ; Ruoshi Zhang, Auteur ; Xiaoguang Li, Auteur ; Zhe Xu, Auteur ; Yongqiang Tian, Auteur Année de publication : 2022 Article en page(s) : p. 113-123 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux de chèvres
Epilage enzymatique
Matériaux -- Coloration
Métalloprotéinases
Wet-blue (tannage)Peau tannée au chrome (le chrome donne une couleur bleue)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In this study, alkaline metalloprotease gene 1067 was cloned from Planococcus halotolerans SCU63T and heterologously expressed in Bacillus subtilis SCK6. Using Luria Bertani (LB) broth medium as the initial medium, the optimal medium was obtained through a series of fermentation and culture optimization (g/L): yeast extract (10), soybean powder (15), urea (20), potassium chloride (6.7), calcium chloride (13.3), NaCl (10). On the basis of the optimal medium, the highest enzymatic activity of 1259.21 U/mL could be obtained by culturing at 30°C for 40 h. with pH 8, inoculation amount of 4% and filling amount of 50 mL. EDTA inhibits protease activity and PMSF promotes it, indicating that it was a metalloprotease rather than a serine protease. The optimum reaction temperature of the protease is 70°C, and the optimum pH is 9. The metal ions Zn 2+, Co2+ and surfactant β-ME, Tween 80 can improve the activity of the protease. The results of unhairing, SEM and staining show that this metalloprotease can completely dehair goatskin. Compared with the conventional chemical method, the goatskin after enzymatic unhairing has softer texture and smoother surface, and there is no obvious damage to the goatskin. Note de contenu : - MATERIALS AND METHODS : Materials - Construction of recombinant plasmid and expression of 1067 in B. subtilis SCK6 - Optimization of fermentations conditions - Purification of protease 1067 - Enzyme assay - Analysis of enzymatic properties - Unhairing function of protease 1067 - Characterization of protease 1067 unhairing
- RESULTS AND DISCUSSION : Construction of recombinant strain and identification of protease activity - Fermentation optimization - Purification and identification of protease 1067 - Effect of temperature on enzyme activity and stability - Effect of pH on enzyme activity and stability - Effect of metal ions on enzyme activity - Effects of chemicals on enzyme activity - Effect of organic solvents on enzyme activity - Analysis of unhairing - SEM and analysis of tissue staining
- Table 1 : Factors and levels for RSM
- Table 2 : ANOVA for quadratic model
- Table 3 : Effect of metal ions on enzyme activity
- Table 4 : Effect of chemicals on enzyme activity
- Table 5 : Effect of solvents on enzyme activity
- table 6 : Characterization of mechanical properties of wet blue skinDOI : https://doi.org/10.34314/jalca.v117i3.4892 En ligne : https://drive.google.com/file/d/1z4VjDZxnKDTJf0c5BtRxJKAwUieQ2jK9/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37602
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXVII, N° 3 (03/2022) . - p. 113-123[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23402 - Périodique Bibliothèque principale Documentaires Disponible Heterologous expression of metalloproteinases from planococcus halotolerans SCU63T and eco-friendly enzymatic dehairing of goatskin / Zhang Shihao in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 105, N° 3 (05-06/2021)
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Titre : Heterologous expression of metalloproteinases from planococcus halotolerans SCU63T and eco-friendly enzymatic dehairing of goatskin Type de document : texte imprimé Auteurs : Zhang Shihao, Auteur ; Ruoshi Zhang, Auteur ; Xiaoguang Li, Auteur ; Zhe Xu, Auteur ; Yongqiang Tian, Auteur Année de publication : 2021 Article en page(s) : p. 132-139 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Cuirs et peaux de chèvres
Enzymes microbiennes
Epilage enzymatique
Métalloprotéinases
Microscopie électronique à balayage
Peptidases
pH
Produits chimiques -- Purification
Travail de rivière (cuir)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : In this study, a metalloproteinase gene from Planococcus halotolerans SCU63 was cloned and expressed in Bacillus sp. SCK6. LB broth medium was used as the initial medium and for a series of fermentation optimisations. The most suitable medium components were as follows (g/l) : yeast extract powder (20), casein (13), tryptone (7), NaCl (10), urea (8). When the inoculation amount was 2%, the filling amount was 100mL, the culture time was 370C, and the pH was 7.0 for 40 hours the protease production reached the highest. The enzyme activity was completely inhibited by EDTA. Surfactants, such as Tween 20, Tween 80, and TritonX-100, could improve the enzyme activity, while SDS could inhibit the enzyme activity. Under protease action, goatskin can be completely depilated at 37oc and 28 hours. Compared with the conventional chemical dehairing, the enzymatic dehairing opened up the goatskin elastic fibre without any hair root in the hair follicle, and the skin was of high quality. Note de contenu : - MATERIALS AND METHODS : Materials - Construction of recombinant plasmid and expression of 1030 in B. subtilis SCK6 - Optimisation of fermentation conditions - Purification of proteases - Determination of enzyme activity - Characterisation of enzymatic properties - Dehairing function of protease 1030 - Analysis of dehairing
- RESULTS : Construction of recombinant plasmid and its expression in SCK6 - Optimisation of fermentation conditions and RSM - Purification and identification of proteases 1030 - Effect of temperature on enzyme activity and stability - Effect of pH on enzyme activity and stability - Effect of NaCl concentration on enzyme activity - Effect of metal ions on enzyme activity - Effect of chemicals on enzyme activity - Effect of organic solvents on enzyme activity - Analysis of enzymatic dehairing - Analysis of SEM and staining
- Table 1 : Factors and levels for RSM
- Table 2 : ANOVA for quadratic model
- Table 3 : Effect of metal ions on enzyme activity
- Table 4 : Effect of chemicals on enzyme activity
- Table 5 : Effect of solvents on enzyme activityEn ligne : https://drive.google.com/file/d/15BWASUeWYefKBb5gBjgfaEyNcAG7bjbz/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35833
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 105, N° 3 (05-06/2021) . - p. 132-139[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22745 - Périodique Bibliothèque principale Documentaires Disponible Hide and leather characteristics of afrikaner and friesland bulls and steers slaughtered at various ages between birth and 24 months / Alan E. Russell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61 et 62 (Années 1977 et 1978)
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Titre : Hide and leather characteristics of afrikaner and friesland bulls and steers slaughtered at various ages between birth and 24 months Type de document : texte imprimé Auteurs : Alan E. Russell, Auteur ; A. C. Galloway, Auteur ; R. L. Boccard, Auteur ; R. T. Naudé, Auteur Année de publication : 1978 Article en page(s) : p. 1-10 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bovins -- Races
Caractérisation
Cuirs et peaux -- Analyse
Cuirs et peaux -- Propriétés physiques
Cuirs et peaux de bovins
Mesures de rendementIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Investigation of the influence of breed, sex and age factors on hide and leather characteristics indicates that when young Afrikaner and Friesland bulls and steers are reared under intensive feedlot conditions, bulls have a higher yield of green hide mass than steers and exhibit more favourable leather properties than steers, especially with regard to tensile strength in Friesland bulls. With the onset of sexual maturity in bulls after 12 months of age, accompanying changes in leather physical properties were apparent and tensile strength showed a decline particularly in Friesland bull leathers. These changes in hide physical properties appear to parallel increases in the level of natural crosslinking of the collagen molecular structure during ageing and maturation. Main differences between the two breeds studied were that Afrikaner animals were superior in terms of hide and leather yield whereas the leather of Friesland cattle was qualitatively superior. Note de contenu : - EXPERIMENTAL : Yield measurements - Leather physical tests
- RESULTS : Yield measurements - Leather physical testsEn ligne : https://drive.google.com/file/d/1FtMtn1fZb-Y9MSws82wym_0sEszL0Hjr/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31844
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 61 et 62 (Années 1977 et 1978) . - p. 1-10[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008597 - Périodique Archives Documentaires Exclu du prêt Hide and leather characteristics of afrikaner and friesland bulls and steers slaughtered at various ages between birth and 24 months / Alan E. Russell in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 61, N° 1 (01-02/1977)
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PermalinkHigh-binding-fastness dye from functional extracts of Keemun black tea waste for dyeing flax fabric / Peng Wang in COLORATION TECHNOLOGY, Vol. 138, N° 3 (06/2022)
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PermalinkHigh carboxyl content cellulose nanofibers from banana peel via one-pot nitro-oxidative fabrication / Dung Van Nguyen in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 33, N° 2 (04/2023)
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PermalinkHigh electrical conductivity waterborne inks for textile printing / Muhammad Ali in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)
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PermalinkHigh performance leather based on in situ formation of reduced graphene oxide in chrome tanning / Xinle Yang in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXVII, N° 5 (05/2022)
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PermalinkHigh-performance natural rubber/graphene composites from a uniquely designed physical and chemical hybrid-network / B.-L. Yu in INTERNATIONAL POLYMER PROCESSING, Vol. XXXV, N° 2 (05/2020)
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PermalinkHigh silica-alumina-coated TiO2 pigment with improved dry hiding for flat paints in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 6 (11/2022)
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PermalinkHigh-speed imaging the effect of snap-off distance and squeegee speed on the ink transfer mechanism of screen-printed carbon pastes / Sarah-Jane Potts in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 2 (03/2020)
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PermalinkHigh-speed slot-die coating of primer layers for Li-ion battery electrodes : model calculations and experimental validation of the extended coating window depending on coating speed, coating gap and viscosity / Sandro Spiegel in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 2 (03/2024)
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PermalinkHigh temperature RTM370 polyimide composites fabricated by RTM : characterization and impact testing / K. C. Chuang in SAMPE JOURNAL, Vol. 49, N° 5 (09-10/2013)
PermalinkHighly improved UV-shielding and mechanical properties of UV-curable epoxy acrylate nanocomposites by incorporating functionalized aramid nanofibers / Ying Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 1 (01/2024)
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PermalinkA highly resistant structure between the cuticle and the cortex of human hair III : Characterization of the structure CARB / Toshie Takahashi in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 43, N° 2 (04/2021)
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PermalinkA highly selective and sensitive benzothiazole-based 'turn-on' fluorescent sensor for Hg2+ ion / Serkan Erdemir in COLORATION TECHNOLOGY, Vol. 131, N° 1 (02/2015)
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PermalinkA highly selective ratiometric fluorescent sensor for Hg2+ based on 1,8-naphthalimide / Xiangzhi Li in COLORATION TECHNOLOGY, Vol. 130, N° 3 (06/2014)
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PermalinkHighly transparent thermal stable silicone/titania hybrids with high refractive index for LED encapsulation / Yamen Lai in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 6 (11/2015)
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