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Acrylic syntans - versatile tanning materials / William C. Prentiss in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXX (Année 1975)
[article]
Titre : Acrylic syntans - versatile tanning materials Type de document : texte imprimé Auteurs : William C. Prentiss, Auteur ; Charles R. Sigafoos, Auteur Année de publication : 1975 Article en page(s) : p. 481-497 Note générale : Appendix - Bibliogr. Langues : Américain (ame) Catégories : Chaussures
Cuirs et peaux de porcs
pH
Polyacryliques
Prétannage
QuebrachoLe quebracho est un arbre à écorce ligneuse, mesurant 30 mètres de haut, à feuilles tannées et à fleurs tubulées blanches.
Quebracho est l'un des noms communs, en espagnol, d'au moins trois espèces similaires d'arbres originaires du Gran Chaco, en Amérique latine : Schinopsis lorentzii (quebracho colorado santiagueño), de la famille des Anacardiaceae ; Schinopsis balansae (quebracho colorado chaqueño), de la même famille ;
Aspidosperma quebracho-blanco (quebracho blanc), de la famille des Apocynaceae.
Ces trois espèces sont riches en tanin et fournissent un bois très dur, particulièrement résistant. Leur nom provient de l'espagnol quiebrahacha, qui signifie brise-hache.
Retannage
Syntans
Tannage au chrome
Tannage combinéLe tannage combiné se dit des tannages qui allient deux familles ou genre de tannage pour obtenir un résultat additionnant les qualités complémentaires des tannins mis en œuvre par exemple Chrome-Végétal ou Chrome-Synthétique
Tannage synthétique
Tannage végétal
Tige de la chaussure
VêtementsIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : Acrylic resins have been utilized for decades in the finishing of leather, and literature references are available for their use in finishing and in retanning processes. There is little in the current literature, however, on acrylic syntans for use in tanning or retanning, although such products have been available commercially since the early 1960's. In 1966, a Netherlands patent and, in 1969, a United States patent were issued covering the basic composition and use of an acrylic polymer prepared in the presence of a sulfated oll for use in the preparation of leather. A paper read at the Northampton group of the SLTC covered the known properties of one of these novel retanning materials. More recently, a patent was issued to cover copolymers of unsaturated acids and quaternized tertiary amines, although products of this type are not normally available. Note de contenu : - USE OF ACRYLIC SYNTAN WITH CHROME TANNING : As a chrome exhaust aid - As a pretannage
- USE OF ACRYLIC SYNTAN IN RETANNING OF CHROME LEATHER : Review of precious work - Effect of pH to control deposition - Buffered retannages - Combination retannages with vegetable extract
- CURRENT RETANNAGES FOR VARIOUS LEATHERS
- Table 1 : Acrylic syntan - typical values
- Table 2 : Syntan influence on chrome exhaustion
- Table 3 : Acrylic syntan compared as pretan or retan
- Table 4 : Acrylic syntan pretan in salt-free pickle chrome content of leathers
- Table 5 : Effect of pH of retannage on leather properties
- Table 6-A : Effect of buffers on leather properties
- Table 6-B : Effect of buffers on leather properties
- Table 7 : Acrylic syntan in combination with vegetable
- Table 8 : Buffered acrylic plus quebracho retannage
- Table 9 : Buffered retannage for white, full grain side leather
- Table 10 : Soft pigskin for garment leather
- Table 11 : Retannage for white pigskin
- Table 12 : Retannage for shoe side upper leather
- Table 13 : Retannage for softy shoe or bootEn ligne : https://drive.google.com/file/d/1tJOg67zIbIoqEV2WZUuL8IAHhtGEvESE/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38793
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXX (Année 1975) . - p. 481-497[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008509 - Périodique Archives Documentaires Exclu du prêt Isothiazolones for leather preservation. II. Military leather / William C. Prentiss in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXIV (Année 1979)
[article]
Titre : Isothiazolones for leather preservation. II. Military leather Type de document : texte imprimé Auteurs : William C. Prentiss, Auteur ; Charles R. Sigafoos, Auteur Année de publication : 1979 Article en page(s) : p. 322-328 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens
Cuirs et peaux -- Conservation
Isothiazolinone
Produits de conservation du cuirIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : In 1973, a new fungicide for the preservation of chrome stock was described at the Thirteenth Congress of the IULTCS in Vienna. The material, n-octyl-4-isothiasol-3-one, known commercially as Kathon LP, has been in use for six years worldwide with a very high level of acceptance include its broad spectrum of activity against fungi, its cost effectiveness relative to other commercially available products, and its complete inactivation in the effluent stream.
For many years p-nitro phenol has been specified as the preservative for military leathers and has beensuccessfully utilized in this application. Nevertheless, alternatives p-nitro phenol are desirable, and it was our feeling that n-octyl-4-isothiazol-3-one is a likely candidate. To qualify, however, there are several requirements. Among these are a suitable spectrum of activity, sufficient field experience to request EPA registration for this use, an analytical procedure to determine levels in submitted leathers, and evidence that the treated leathers will pass the stringent military tests conducted at the Natick R&D Command.
The first requirement is easily met, as indicated in Table 1. The purpose of this paper is to show how the other requirements are met : field experience, the state of the analytical procedure, and the laboratory test results.Note de contenu : - Field experience
- Analysis for N-octylisothiazolone in military leather
- Fungicidal resistance of leather
- Table 1 : Screening against fungi
- Table 2 : Aging stability
- Table 3 : Toxicity data
- Table 4 : Analysis of treated leather for kathon LP (percent, based on wet blue weight)
- Table 5 : Fungicide tests of paste dried leatherEn ligne : https://drive.google.com/file/d/126X2Et-1mbQFyOvAxoOpWcfV_JlUPiTK/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37224
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXIV (Année 1979) . - p. 322-328[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 008512 - Périodique Archives Documentaires Exclu du prêt