Title:
METHOD FOR REUSING SOLID TANNING SCRAPS
Document Type and Number:
WIPO Patent Application WO/2020/230072
Kind Code:
A3
Abstract:
The present invention relates to a method for the exploitation and reuse of solid tanning scraps to be reused within the same tanning production cycle. The solid scraps are treated by a process that allows to obtain a hydrolysed collagen to be used as a soaking, retanning or dyeing agent during the leather treatment steps.
Inventors:
BERTOLUTTI CLAUDIO (IT)
Application Number:
PCT/IB2020/054567
Publication Date:
December 17, 2020
Filing Date:
May 14, 2020
Export Citation:
Assignee:
SCIARADA IND CONCIARIA S P A (IT)
International Classes:
C08H1/06; C08L89/06; C14C3/00
Domestic Patent References:
| WO2006067801A1 | 2006-06-29 |
Foreign References:
| EP3109288A1 | 2016-12-28 | |||
| US20060137102A1 | 2006-06-29 | |||
| CN102559952A | 2012-07-11 | |||
| CN101113481A | 2008-01-30 |
Other References:
MARIA J. FERREIRA ET AL: "Alkaline Hydrolysis of Chromium Tanned Leather Scrap Fibers and Anaerobic Biodegradation of the Products", WASTE AND BIOMASS VALORIZATION, vol. 5, no. 4, 4 August 2013 (2013-08-04), NL, pages 551 - 562, XP055344597, ISSN: 1877-2641, DOI: 10.1007/s12649-013-9252-9
I F PAHLAWAN ET AL: "Hydrolysis of leather shavings waste for protein binder", IOP CONFERENCE SERIES: EARTH AND ENVIRONMENTAL SCIENCE, vol. 230, 19 February 2019 (2019-02-19), pages 012083, XP055658578, DOI: 10.1088/1755-1315/230/1/012083
ALVIN ASAVA ET AL: "Recovery of Collagen Hydrolysate from Chrome Leather Shaving Tannery Waste through Two-Step Hydrolysis using Magnesium Oxide and Bating Enzyme Recovery of Collagen Hydrolysate from Chrome Leather Shaving Tannery Waste through Two-Step Hydrolysis using Magnesium Oxide and Bating Enzyme INTRODUCTION", vol. 103, 10 April 2019 (2019-04-10), XP055658575, Retrieved from the Internet [retrieved on 20200116]
I F PAHLAWAN ET AL: "Hydrolysis of leather shavings waste for protein binder", IOP CONFERENCE SERIES: EARTH AND ENVIRONMENTAL SCIENCE, vol. 230, 19 February 2019 (2019-02-19), pages 012083, XP055658578, DOI: 10.1088/1755-1315/230/1/012083
ALVIN ASAVA ET AL: "Recovery of Collagen Hydrolysate from Chrome Leather Shaving Tannery Waste through Two-Step Hydrolysis using Magnesium Oxide and Bating Enzyme Recovery of Collagen Hydrolysate from Chrome Leather Shaving Tannery Waste through Two-Step Hydrolysis using Magnesium Oxide and Bating Enzyme INTRODUCTION", vol. 103, 10 April 2019 (2019-04-10), XP055658575, Retrieved from the Internet
Attorney, Agent or Firm:
MASALA, Gian Tomaso et al. (IT)
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