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Application of acrylic resin coating agent modified by nano SiO2 / Ma Jianzhong in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 5 (09-10/2006)
[article]
Titre : Application of acrylic resin coating agent modified by nano SiO2 Type de document : texte imprimé Auteurs : Ma Jianzhong, Auteur ; Zhang Zhijie, Auteur ; Liu Lingyun, Auteur ; Hu Jing, Auteur Année de publication : 2006 Article en page(s) : p. 188-192 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Air
Composites
Cuir -- Nettoyage
Cuirs et peaux -- Finition
Cuirs et peaux -- Propriétés mécaniques
Dioxyde de silicium
Formulation (Génie chimique)
Nanoparticules
Perméabilité
Polyacryliques
Résistance à l'abrasion
Revêtements organiques
Vapeur d'eauIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : An acrylic resin and an acrylic-resin/nano-SiO2 composite prepared as coating agents were applied in leather finishing and various properties of the finished leathers were determined. The results show that the physicalmechanical properties and cleaning properties of the leather samples finished with the acrylic-resin/nano-SiO2 composite increase noticeably. As examples, water vapour penetration and air permeability improved by 11.5% and 15.4%, dry rub fastness and folding strength [flexing] of the leather finished with the composite resin were also, to a degree, superior to that finished by the acrylic resin. The surface morphology observed by SEM (scanning electron microscope-energy spectrum of X-ray analysis) and AFM (atomic force microscope) indicated that the surface of the leather finished with the composite resin is smoother than that of leathers finished with the acrylic resin. Note de contenu : - EXPERIMENTAL PROCEDURES : Materials - Instruments - Synthesis of nano composite acrylic resin - Application in leather finishing - Tests of the finished leather’s performances
- RESULTS AND DISCUSSION : Air permeability of the finished leathers - Water vapour penetration of the finished leathers - Dry and wet rub fastness of the finished leather samples - Folding endurance - Observation of the finished leathers by SEM-EDS - Observation of the finished leathers by AFM
- Table 1 : The formulae for finishing
- Table 2 : Air permeability of different leather samples
- Table 3 : Water vapour penetration of different leather samples
- Table 4 : Grades of dry and wet rub fastnessEn ligne : https://drive.google.com/file/d/1JicRME_BV_7V1HagPpLnWEYMWD296N8a/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39054
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 90, N° 5 (09-10/2006) . - p. 188-192[article]Comparison of dry cleaning test methods / A. W. Landmann in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 63, N° 6 (11-12/1979)
[article]
Titre : Comparison of dry cleaning test methods Type de document : texte imprimé Auteurs : A. W. Landmann, Auteur Année de publication : 1979 Article en page(s) : p. 109-113 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuir -- Nettoyage
Essais (technologie)
Nettoyage à secIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : There is an increasing tendency to specify the performance of leather. For clothing leather, its behaviour to dry cleaning is an essential property and poor performance is probably the greatest source of consumer complainte. The original UK method for testing leather was based on tumbling with solvent using conditions recommended by Davis and Nursten. Experience with this procedure in the textile industry showed poor correlation with actual dry cleaning and the method was modified by the addition of steel discs. This procedure was subsequently adopted by the textile industry and forms the basis of both ISO and BSI procedures ; it has also been adopted by the SLTC as method SLF 12.5 However, it does not involve detergents and its main drawback so far as leather is concerned is that no re-oiling is involved. This means that the test gives rather worse ratings for leather because removal of oil in the test causes an optical loss of colour which in commercial dry cleaning is restored by addition of oil to a rinse bath or applied as a subsequent spray.
On the Continent, alternative methods have been developed in Germany and Switzerland specifically for leather. The IULTCS Fastness Tests Commission (IEKL) is now considering which of these methods to adopt. Both German and Swiss methods involve detergent addition and some form of oil replacement. In order to provide some factual comparative evidencq, this comparison of methods and some variations in procedure were undertaken so that the IEKL would have a reasonable basis on which to come to a decision. The present position where specifications are based on different methods is clearly unsatisfactory.
Area change after simulated dry cleaning tests has not been incorporated in the SLTC methods, but is referred to in German publications. In this work dimensional changes have been reported on leather conditioned at 20°C, 65 % r.h. initially and after drying. This procedure will tend to maximise recorded shrinkage in tests where solvent is removed at 60°c subject to hysteresis effects.Note de contenu : - EXPERIMENTAL : Grain, change of pattern - Flesh side - Change in pattern - Staining of fabric - Area shrinkage
- CONCLUSIONS : Suggestions for a leather dry cleaning test
- TABLE 1 : Average performance of leathers subjected to seve laboratory cleaning tests (high numbers = good performance)
- TABLE 2 : Cumulative frequency of grey scale ratings (% samples achieving grade or better) after cleaning. Colour change on the grain surface
- TABLE 3 : Percentage cumulative frequency of grey scale ratings (% samples achieving grade or better) after cleaning on the flesh side (suede)
- Table 4 : Percentage cumulative frequency of change in sample area after cleaning (% samples)
- Appendix 1 : Methods of dry cleaning
- Appendix 2 : The effect of cleaning on colour (grain/flesh
- Appendix 3 : The effect of cleaning test on colour of cotton bagEn ligne : https://drive.google.com/file/d/1ufd7vZiWSHnLk-vaW9vICZP_uYkKaBYw/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34134
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 63, N° 6 (11-12/1979) . - p. 109-113[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007123 - Périodique Bibliothèque principale Documentaires Disponible
[article]
Titre : Garment leather testing : Fastness requirements for nappa and suede garment leathers and common complaints Type de document : texte imprimé Auteurs : Joachim Lange, Auteur Année de publication : 1993 Article en page(s) : p. 54-56 Langues : Anglais (eng) Catégories : Cuir -- Nettoyage
Cuir nappa
Cuirs et peaux de daims
Essais de résilience
Essais dynamiques
Vêtements en cuirIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Increasing demand for leather garments let the German leather industry and German leather garment industry trade associations to tackle the matter of quality standards as far back as 1978-80. Minimum performance values were tabulated by a leather garment trade group together with the West German Leather College (Westdeutsche Gerberschule). Initially these were consumer-requirement orientated with an evaluation of complaints in the areas of manufacture, use and care of leather garments taken into consideration. A review of technical feasibility in the manufacturing of the principal types of garment leathers and colours was employed in the formulation of the properties. Note de contenu : - Fundamental light fastness via the pickled pelt - wet blue route
- Nappa comes into the picture
- The 'nappa effect'
- Cleaning the garment
- The problems of washability
- Table 1 : Quality requirement
- Table 2 : Optional testsEn ligne : https://drive.google.com/file/d/1F4qQDLuIlpSxW97vb8_KyVVgoMREMjMp/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35179
in WORLD LEATHER > Vol. 6, N° 6 (10-11/1993) . - p. 54-56[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008095 - Périodique Bibliothèque principale Documentaires Disponible Study of cleaning materials and methods for stains on parchment / Gomaa Abdel-Maksoud in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 4 (07-08/2006)
[article]
Titre : Study of cleaning materials and methods for stains on parchment Type de document : texte imprimé Auteurs : Gomaa Abdel-Maksoud, Auteur Année de publication : 2006 Article en page(s) : p. 146-154 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorimétrie
Cuir -- Nettoyage
Cuirs et peaux -- Analyse
Cuirs et peaux -- Propriétés mécaniques
Essais accélérés (technologie)
Evaluation
Morphologie (matériaux)
Parchemin
TachesIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Parchment is a very beautiful material; very strong but also very fragile in an unsuitable storage environment. Actually, as regards to the dust and grime accumulated in normal museums and library storage, the cleaning of parchment is a fairly simple task. Stains on parchment which are due to damp, dust, mould, ink, colour migration and etc. are a problem for conservators, but with care and patience may usually be treated successfully. This study uses artificial stains (similar to the natural stains, which can be found on historical parchment) on new and aged parchment (prepared by the author) to evaluate the materials and methods used in cleaning processes. The advantages and disadvantages of bleaching materials used after a cleaning process were also recorded.
Colour was measured by spectrophotometer and the surface morphology examined by the use of a scanning electron microscope. Mechanical properties were determined and Energy Dispersive X-Ray Analysis was also used to evaluate the cleaning materials and methods.The results have shown that mechanical cleaning methods have certain advantages for the object since nothing is added during the cleaning. In chemical cleaning, water should not be used alone but must be used mixed with an organic solvent. Mechanical cleaning methods are safer than chemical cleaning methods.Note de contenu : - MATERIALS AND METHODS : New parchment - Artificial stains applied on new parchment - Stain application details - Accelerated ageing - Cleaning materials and methods
- EVALUATION METHODS
- RESULTS AND DISCUSSION : Change of colour - Investigation of the surface morphology by SEM - Energy Dispersive X-Ray Analysis - Elemental levels compared to control sample - Mechanical propertiesEn ligne : https://drive.google.com/file/d/1f_YIyVqRzh089TQbCcvU8s-37BAQjx1B/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39112
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 90, N° 4 (07-08/2006) . - p. 146-154[article]