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The detection of sperm oil in leather and oil mixtures / A. W. Landmann in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 66 (Année 1982)
[article]
Titre : The detection of sperm oil in leather and oil mixtures Type de document : texte imprimé Auteurs : A. W. Landmann, Auteur ; W. S. Berwick, Auteur Année de publication : 1982 Article en page(s) : p. 134-140 Langues : Anglais (eng) Catégories : Chimie analytique
Chromatographie en phase gazeuse
Cuirs et peaux -- Analyse
Huile de spermaceti
Mélanges (chimie)
Produits de nourriture du cuirIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : GLC represents a technique for recognising sperm oil and even its semi-quantitative determination by the use of an integrator. However, the technique must be used with care and intelligence. It is important to ensure that there is first of an a reasonably clear response. For reasons which are not absolutely clear, response to injection of the required amount of sample can be poor on occasions. Amplification of the signal can be used though this rules out any possibility of a quantitative evaluation. A low response considerably reduces the detection limt of sperm oil which is 5 % of the total extract but can be improved under good conditions and be worse if these conditions depart in the other direction. Considerable work on examination of leathers and mixed fatliquors confirms that sperm oil can be recognised at this level. Note de contenu : - Towards an identification method for the presence of sperm oil
- Outline of the method
- Examples of oils and mixtures examined according to the proposed method
- Appendix : Method for the detection of sperm oil in fatliquors and leathers : Scope - Principle - Apparatus - Preparation of solution for injection - Procedure - Perkin-Elmer FII stainless steel columns - Procedure-Sigma 3 WCOT column SE-30 silicone gum coated - Notes
- Table 1 : Percentage Distribution of Fatty Acids According to Carbon Numbers
- Table 2 : Composition of Winterised Sperm Oil by Gas Liquid ChromatographyEn ligne : https://drive.google.com/file/d/13EvivMp1tRFyhbeos6P8I_tG7N_VTeii/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34220
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 66 (Année 1982) . - p. 134-140[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007129 - Périodique Bibliothèque principale Documentaires Disponible The effect of fatliquor emulsion on the physical properties of resultant leather / Zongcai Zhang in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 88, N° 3 (05-06/2004)
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Titre : The effect of fatliquor emulsion on the physical properties of resultant leather Type de document : texte imprimé Auteurs : Zongcai Zhang, Auteur ; Hong Dai, Auteur ; Juan Du, Auteur Année de publication : 2004 Article en page(s) : p. 110-112 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chromatographie en phase liquide à hautes performances
Cuirs et peaux -- Propriétés physiques
Emulsions
Granulométrie
Produits de nourriture du cuir
Tension superficielleIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : This paper reports on a study of the effects of fatliquor emulsion parameters on leather performance. The results show that the emulsion properties, including particle size distribution of emulsion, surface tension and oil (active fat/ neutral oil) content have a great impact on the performance of the resultant leather. The work provides a theoretical foundation for the development of fatliquoring agents. Note de contenu : - MATERIALS AND METHODS : Reagents - Particle size distribution of emulsion - Emulsion stability of fatliquor - Surface tension - Effective component content - Active component contents of the effective component - Stratigraphic testing - Bound oil in leather - Physical properties of resultant leather
- RESULTS : Emulsion characteristics of fatliquors - Results of stratigraphic testing - Physical properties of resultant leather
- DISCUSSION : Emulsion characteristics and extracted fat content of resultant leather - Emulsion properties and physical properties of resultant leather
- Table 1 : HPLC conditions
- Table 2 : Emulsion properties of fatliquoring agents
- Table 3 : Extracted oil content in the 3 splits of the resultant leather
- Table 4 : Physical properties of resultant leathersEn ligne : https://drive.google.com/file/d/1LcRnJiFM9i2WpYATw_Z1neYP4WbTywwn/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39637
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 88, N° 3 (05-06/2004) . - p. 110-112[article]The effect of palm oil sulfatation time on fatliquor quality and finished leather product / Rihastiwi Setiya Murti in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 5 (05/2020)
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Titre : The effect of palm oil sulfatation time on fatliquor quality and finished leather product Type de document : texte imprimé Auteurs : Rihastiwi Setiya Murti, Auteur ; Emiliana Kasmudjiastuti, Auteur ; Ono Suparno, Auteur Année de publication : 2020 Article en page(s) : p. 184-189 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Allongement à la rupture
Chimie analytique
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux -- Propriétés physiques
Douceur (toucher)
Fourier, Spectroscopie infrarouge à transformée de
Huile de palme et constituants
Microscopie électronique à balayage
Produits de nourriture du cuir
Résistance à la traction
SulfatationIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Fatliquoring process is an important process in leather manufacturing as the process affects the properties of leather such as softness, oil content, tensile strength, elongation at break and tear strength. In this study, sulfated oil was made from palm oil by sulfatation process using 25% sulfuric acid (98% content) with variation of sulfatation times (0, 1, 2, 3, and 4 hours). The study aimed to know the influence of sulfatation time on the production of sulfated oil to the quality of oil and finish leather produced. The results showed the sulfatation time affected the quality of sulfated oil and tanned leather. The optimum time for sulfatation process of palm oil was three hours. The quality of sulfated oil had water content of 6.47%, pH of 8, oil content of 81.28%, saponification number of 192.74%, total alkalinity of 0.25%, ash content of 2.77% and SO3 levels bond of 7.68%. The quality of finished leather were tensile strength of 286.50 N/mm2, elongation at break of 63.33%, softness of 3.92 mm and oil content of 10.15%. Note de contenu : - EXPERIMENTAL : Materials and equipment - Synthesis of fatliquor from bulk palm oil using sulfatation process - Fatliquoring - Gas chromatography (GC) analysis - FT-IR analysis - Chemical properties - Physical properties - Microscopic studies
- RESULTS AND DISCUSSION : FT-IR analysis - Chemical properties - Physical properties - Tensile strength - Elongation at break - Softness - Oil content - Scanning Electron Microscopy (SEM)DOI : https://doi.org/10.34314/jalca.v115i5.3812 En ligne : https://drive.google.com/file/d/1HnkY-yLwM5EnR7PYbK1QUJjPWRQ-zzir/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34164
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXV, N° 5 (05/2020) . - p. 184-189[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21742 - Périodique Bibliothèque principale Documentaires Disponible The impact of milling on leather properties and fatliquor distribution / Richard L. Edmonds in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 6 (11-12/2017)
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Titre : The impact of milling on leather properties and fatliquor distribution Type de document : texte imprimé Auteurs : Richard L. Edmonds, Auteur ; Adriano Peruzzi, Auteur ; Sue M. Cooper, Auteur Année de publication : 2017 Article en page(s) : p. 312-317 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Croûte (cuir) On entend par "cuir en croûte" des cuirs ayant subi les opérations jusqu'au tannage, à l'exclusion de toute opération de corroyage ou de finissage, mais qui, par opposition aux wet-blue ont été séchés.
Cuirs et peaux -- Analyse
Cuirs et peaux -- Teneur en matières grasses
Douceur (toucher)
Echantillonnage
Epaisseur -- Mesure
Fragmentation
Lipides
Produits de nourriture du cuir
Résistance à la déchirureIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Leather samples were produced With five different types of fatliquor and were treated with a standard milling process. The leathers were assessed before and after milling for strength and softness using standard rnethods and fatliquor distribution was analysed. Milling was pound to increase softness and thickness, and increased the strength of the leather for four of the five different fatliquored samples. The fatliquor distribution was determined using a novel technique where image analysis of a series of photomicrographs of cross sections stained with Sudan III/IV was carried out. It was found that
different fatliquors were distributed slightly differently in the leathers. There were peaks of fat in the grain and lower corium with much less in the upper corium. When the fatliquored crust leather was milled the overall distribution of fat through the cross section remained unchanged indicating that changes in physical properties brought about by milling were not the result of bulk fatliquor redistribution.Note de contenu : - MATERIALS AND METHODS : Leather preparation - Physical testing - Staining procedure - Microscope image analysis
- RESULTS AND DISCUSSION : Absolute fat content - Tear strength, thickness and softness - Redistribution of fat with mechanical actionEn ligne : https://drive.google.com/file/d/1d5JimwdFOymORe-NiEQi18bf2LpHzaME/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29671
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 101, N° 6 (11-12/2017) . - p. 312-317[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19446 - Périodique Bibliothèque principale Documentaires Disponible The influence of quantity of fatliquor offered and type of finish on the flex resistance of leather / H. W. Arnoldi in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 54, N° 9 (09/1970)
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Titre : The influence of quantity of fatliquor offered and type of finish on the flex resistance of leather Type de document : texte imprimé Auteurs : H. W. Arnoldi, Auteur ; A. W. Landmann, Auteur Année de publication : 1970 Article en page(s) : p. 316-324 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cuirs et peaux -- Finition
Cuirs et peaux -- Propriétés mécaniques
Essais (technologie)
Essais dynamiques
Flexion (mécanique)
Humidité -- Absorption:Eau -- Absorption
Plan d'expérience
Polissage
Produits de nourriture du cuir
Rupture (mécanique)Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : The leathers were fatliquored with sulphited sperm or sulphated sperm and raw sperm oil at levels between 1 and 5 % oil as received based on shaved weight. The leathers were unfinished, casein finished, resin finished or nitrocellulose finished.
The results indicate that the type of finish has a marked effect on break, particularly at lower fatliquor levels. For good fiexibility of the leather and finish the higher level of fat is desirable and this is close to the maximum for good adhesion in the DMS process.Note de contenu : - EXPERIMENTAL : Factors and levels of the factors investigated - Plan of experiment - Experimental details
- TEST APPLIED : Analytical tests - Uniformity of buffing - Water absorption in the grain rub test - Break - Flexing resistance - Set after preforming test - Microscopical examinations
- RESULTS AND DISCUSSION : Analytical results - Uniformity of buffing - Water absorption - Break - Flexing resistance - % set after preforming - Microscoipcal examinationEn ligne : https://drive.google.com/file/d/1GV7LxaAgC9ZadjaNfO7lmLRrYDPFsmgJ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37018
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 54, N° 9 (09/1970) . - p. 316-324[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 007086 - Périodique Bibliothèque principale Documentaires Disponible The use of inert oplymer spheres in retannage and fatliquoring floats. Reduced chemical use and environmental advantage / R. P. Daniels in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 105, N° 2 (03-04/2021)
PermalinkUpgrading of rural garad-tanned crust leathers / A. E. Musa in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 96, N° 1 (01-02/2012)
PermalinkUse of natural fat emulsions in fatliquoring process and investigation of fatty spue formation / Gökhan Zengin in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 3 (03/2011)
PermalinkValorization of sustainable vegetable oil deodorizer distillate as a novel fatliquor / El-Shahat H. A. Nashy in COLLAGEN AND LEATHER, Vol. 5 (2023)
PermalinkWater hardness as an important parameter of the fatliquoring process / Krzysztof Smiechowski in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 101, N° 6 (11-12/2017)
PermalinkWaterproofing of sole leather / P. L. Muthiah in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 54, N° 5 (05/1970)
PermalinkWet processing upholstery enhancement through technique / R. Kraus in WORLD LEATHER, Vol. 7, N° 1 (02/1994)
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