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R&d of new technologies for - hides mechanical dehairing; production of stabilised hides after deliming / bating phase

Objective



In the traditional tanning cycle, dehairing of hides is carried out in a chemical bath with water, sulphides, lime and other chemicals. The liquid waste derived from this phase is highly pollutant so as to cause frequent troubles in the waste waters depurator. Therefore it should be very interesting to set up a technology for a mechanical dehairing of hides, instead of the chemical/biochemical treatments employed at present. Such an innovation could enable: - not to use sulphide compounds and therefore to reduce the pollutant load in liquid effluents; - to improve hides cleaning (dehairing); - to carry out at the same time dehairing and fleshing; - to recycle uncontaminated hair besides shreds of flesh; - to improve hides quality ( for the absence of sulphides in liming step) Another interesting new technology substituting pickel phase could be developed. After the hides deliming-bating step, traditional tanning cycle could be modified in order to obtain a semifinished product resulting "stabilised"; that is to say fit for mechanical processes like splitting and shaving, and then fit for the next tanning step. Some important advantages may be got, as: - improvement of hides quality; - elimination of pickel phase; - reduction of Chrome salts consumption owing to the decreased hides surface being tanned and the increased hides reactivity; - higher exhaustion of chrome bath in tanning step, for the higher reaction efficiency. - elimination of re-tanning phase.

Coordinator

CONCERIA INCAS SPA
Address
Via E. Mattei 11
56022 Castelfranco Di Sotto
Italy

Participants (16)

A.L.P.A. SpA
Italy
Address
Via S. Veniero 40
20148 Milano
ASOCIACION DE INVESTIGACION DE LAS INDUSTRIAS DEL CURTIDO Y ANEXAS
Spain
Address
78,Avenida Pla. De La Massa S/n
08700 Igualada
C.M. SpA - Tannery Machines
Italy
Address
Via Christoforo Colombo 17
56029 S Croce Sull'arno
CENTRO TECNOLOGICO DAS INDUSTRIAS DO COURO
Portugal
Address
Sao Pedro Apartado 158
2380 Alcanena
Christoulakis S.A.
Greece
Address
Viomihaniko Parko
73400 Tsikalaria
Curtumes GAMA S.A.
Portugal
Address
230,Rua Direita De Francos 230
4100 Porto
Curtumes Miguel Branco Lda
Portugal
Address
Lugar Da Avda. - S. Vicente De Pereira
3880 Ovar
Curtumes kappeler Portuguesa S.A.
Portugal
Address
Lugar Do Sobreiro
4520 Santa Maria Da Feira
ELKEDE TECHNOLOGY AND DESIGN CENTER S.A.
Greece
Address
Lamias National Road, 12Th Km Of Athens, Moraitini
14452 Metamorfosis
ENEA - Ente per le Nuove Tecnologie, l'Energia e l'Ambiente
Italy
Address
23,Via Vasco Viviani 23
56124 Pisa
Industrial Igualadina S.L.
Spain
Address
37,Avenida Angel Guimera 37
8700 Igualada
Industrias Bertran S.L.
Spain
Address
18,Badalona 18
8700 Igualada
Rethimniaki Leather Industry S.A.
Greece
Address
Nea Sfagia
74100 Rethimno
Studio Delta Srl
Italy
Address
Via Puccioni 4
56029 Santa Croce Sull'arno Pisa
Theodoros N. Kourtesis Tannery
Greece
Address
10,P. Ralli 10
18233 Rentis
UNIVERSIDADE DO MINHO
Portugal
Address
Largo Do Paço Campus De Gualtar
4710-057 Braga