| Titre : |
Influence of proteoglycan removal on opening-up in the beamhouse |
| Type de document : |
texte imprimé |
| Auteurs : |
K. T. W. Alexander, Auteur ; Betty M. Haines, Auteur ; M. P. Walker, Auteur |
| Année de publication : |
1986 |
| Article en page(s) : |
p. 85-102 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Increased understanding of the role played by proteoglycans in determining opening-up, which in many bovine leather processes occurs concurrently with depilation, has enabled us to advance the whole concept of beamhouse work.
By combining selected proteolytic enzymes with conventional unhairing chemicals the tanner is provided with a range of options which include :
1. Accelerated processing
2. Increased opening-up of the fibre structure
3. Improved pulping and/or reduction of the requirement for sulphide
4. Replacement of the traditional bating step
5. Reduction of growth and mottle
6. Increased strength of grain leather
7. Increased area yield
Initial studies with bovine hide showed that the proteolytic action during liming speeded up removal of dermatan sulphate proteoglycan and accelerated the opening-up of the collagen fibre structure, allowing a reduction in sulphide unhairing/liming time from 18 hours to six hours. The effect was most marked in the comparatively difficult to open-up neck region and grain layer. In practical terms this greatly facilitates production of well opened-up wet blue under the constraints of a 24 hour raw to wet blue process.
|
| En ligne : |
https://drive.google.com/file/d/18-j6ZDcC3cnCx99XgsckcNc86iIySiGg/view?usp=share [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9125 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXI (Année 1986) . - p. 85-102
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Influence of proteoglycan removal on opening-up in the beamhouse in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXI (Année 1986)
