EP2154255B1 - Machine for roller finishing natural skins, leather and the like, functioning with the so-called "synchro" method - Google Patents

Machine for roller finishing natural skins, leather and the like, functioning with the so-called "synchro" method Download PDF

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Publication number
EP2154255B1
EP2154255B1 EP09162652A EP09162652A EP2154255B1 EP 2154255 B1 EP2154255 B1 EP 2154255B1 EP 09162652 A EP09162652 A EP 09162652A EP 09162652 A EP09162652 A EP 09162652A EP 2154255 B1 EP2154255 B1 EP 2154255B1
Authority
EP
European Patent Office
Prior art keywords
machine
roller
cylinder
leather
skins
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09162652A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2154255A1 (en
Inventor
Gianni Maitan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GE MA TA SpA
Original Assignee
GE MA TA SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GE MA TA SpA filed Critical GE MA TA SpA
Publication of EP2154255A1 publication Critical patent/EP2154255A1/en
Application granted granted Critical
Publication of EP2154255B1 publication Critical patent/EP2154255B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00—Manufacture of leather; Machines or devices therefor
    • C14B1/44—Mechanical treatment of leather surfaces
    • C14B1/56—Ornamenting, producing designs, embossing

Definitions

  • the present finding concerns the manufacture of a machine for roller finishing natural skins, leather and the like, functioning with the so-called "synchro" method; the finding also concerns the use of a gravure cylinder, of the per se known type, to be used in the aforementioned machine.
  • roller spreading machines are particularly used, commonly called “coating machines", in which the skin is conveyed by a lower roller or belt and where a opposing upper spreading roller, made up of a steel gravure cylinder, pressing down on the surface of the skin, countered by the underlying cylinder or belt, deposits a film of liquid product, previously distributed on the surface of the aforementioned upper roller, through a doctor blade, onto the aforementioned surface.
  • a perfect outcome of the finishing operation of the skins apart from depending on a regular and constant pulling of the product in the spreading area, i.e., the area comprised between the upper roller and the underlying lower roller or conveyer belt, mainly depends on the spreading or "coating" action, i.e., the depositing action of liquid product on the entire surface of the material to be treated.
  • the chemical product held inside the incisions, commonly called “pits" and formed on the surface of the spreading cylinder, is released either only at the surface areas of the skin, leaving out the cavities and the nicks of the skin itself, when a covering process is carried out or only on the incisions, depressions, cavities and scratches when a filling operation is carried out.
  • the purpose of the present finding is to make a machine for roller finishing skins, leather and the like, in which the gravure cylinder for spreading, which rotates in synchrony, or rather with a direction in agreement with the advancing of the skin, positioned above the lower roller or conveyer belt, uniformly deposits the chemical product on the entire surface of the skin, on both the ridges and depressions, and on the cavities and nicks.
  • an upper spreading roller consisting of a metal cylinder, the surface of which is covered by a highly deformable elastic material, such as an elastomer or natural or synthetic rubbers, which enters into contact with the entire surface of the skin, adapting to its entire profile, or rather with the flat part, with the possible protrusions and also with the depressions, the incisions, the nicks and concavities.
  • a highly deformable elastic material such as an elastomer or natural or synthetic rubbers
  • the upper roller or gravure cylinder of the finishing machine wholly indicated with the reference numeral 1 and which operates "synchro" or “direct” mode, comprises a metal drum 2 covered, on its outer part, by a layer of highly deformable elastic material 3, the incised surface 4 of which conveys the liquid covering product, such as dye or fixatives "C", from the doctor blade "R”, up to the depositing on the surface "S2" of the skin "P", supported and pulled by an underlying belt 5 or roller 6.
  • the surface "S1" of the gravure cylinder deforms and exactly covers the profile of the surface "S2" of the skin "P", or rather complete contact between the two aforementioned surfaces is obtained, in both the protruding areas "H", and the concavity areas "K", all to obtain a regular and homogeneous deposit of chemical product. It is also possible to foresee that the outer surface of the cylinder be only partially incised. Moreover, it is possible to foresee that the outer surface of the gravure cylinder prints a drawing.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Soil Working Implements (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
EP09162652A 2008-08-05 2009-06-15 Machine for roller finishing natural skins, leather and the like, functioning with the so-called "synchro" method Active EP2154255B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVI2008A000187A IT1390925B1 (it) 2008-08-05 2008-08-05 Macchina per la rifinizione a rullo di pelli naturali, cuoio e simili, funzionante con il metodo cosiddetto "sincro".

Publications (2)

Publication Number Publication Date
EP2154255A1 EP2154255A1 (en) 2010-02-17
EP2154255B1 true EP2154255B1 (en) 2010-12-22

Family

ID=41404364

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09162652A Active EP2154255B1 (en) 2008-08-05 2009-06-15 Machine for roller finishing natural skins, leather and the like, functioning with the so-called "synchro" method

Country Status (5)

Country Link
EP (1) EP2154255B1 (it)
AT (1) ATE492654T1 (it)
DE (1) DE602009000461D1 (it)
ES (1) ES2358237T3 (it)
IT (1) IT1390925B1 (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR201907080T4 (tr) * 2015-06-11 2019-06-21 Ge Ma Ta Spa Deri eşyaların kesintisiz boyanmasına yönelik makine.
EP3150728A1 (en) 2015-10-02 2017-04-05 GE.MA.TA. S.p.A. Machine for roller finishing natural hides and leather
ITUA20161537A1 (it) * 2016-03-10 2017-09-10 Ge Ma Ta Spa Linea per rifinire pelli che avanzano in modo continuo ed automatico per l'intero ciclo di rifinizione
IT201700037050A1 (it) * 2017-04-04 2018-10-04 Ge Ma Ta Spa Apparato per la deposizione in continuo di due differenti sostanze chimiche su una pelle e metodo per la deposizione in continuo
IT201800007456A1 (it) * 2018-07-24 2020-01-24 Macchina per la rifinizione di superfici laminari flessibili di rivestimento di oggetti

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387983B (de) * 1985-07-17 1989-04-10 Schmidt Alexander Gmbh Durchlaufdruck- und buegelmaschine, insbesondere fuer leder
AT8762U1 (de) * 2005-05-27 2006-12-15 Schaefer Philipp Verfahren und vorrichtung zum gestalten der narbenseite eines leders sowie ein an der narbenseite mit einer zurichtung versehenes leder

Also Published As

Publication number Publication date
ITVI20080187A1 (it) 2010-02-06
ES2358237T3 (es) 2011-05-06
ATE492654T1 (de) 2011-01-15
IT1390925B1 (it) 2011-10-19
EP2154255A1 (en) 2010-02-17
DE602009000461D1 (de) 2011-02-03

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