[article]
| Titre : |
Lime-free unhairing : Part 2 : Influence of added salts on NaOH unhairing and on hide properties |
| Type de document : |
texte imprimé |
| Auteurs : |
Virgilijus Valeika, Auteur ; J. Balciuniene, Auteur ; Kestutis Beleska, Auteur ; A. Skrodenis, Auteur ; V. Valeikienè, Auteur |
| Année de publication : |
1998 |
| Article en page(s) : |
p. 95-98 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
The influence of the system containing NaOH, Na2S and a salt such as NaCl, Na2SO4, HCOONa or Na2HPO4 on the properties of pelt in the unhairing process was investigated.
The process of unhairing was separated into two stages : (i) degradation of the hair and (ii) opening up the dermal structure. The opening up stage was carried out in the liquor from the hair degradation after dilution with water.
It was established that the above salts added to the solution for opening up the dermal structure influence the kinetics of the removed collagen and non-collagen proteins and also swelling of the hide. The supplementary use of salts is not convenient because it is more convenient to regulate the properties of the pelt by using a suitable quantity of water in the opening up the stage.
The technology of lime-free production of pelt was developed based on the results of these investigations. Application of this technology of lime-free production of pelt was developed based on the results of these investigations. Application of this technology showed that the quality indexes of the garment leather produced using this method meet the manufacturer's requirements. |
| Permalink : |
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in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 82, N° 3 (05-06/1998) . - p. 95-98
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Lime-free unhairing : Part 2 in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 82, N° 3 (05-06/1998)
