EP4092140A1 - Procédé de décoration d'un cuir exotique - Google Patents

Procédé de décoration d'un cuir exotique Download PDF

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Publication number
EP4092140A1
EP4092140A1 EP22173467.6A EP22173467A EP4092140A1 EP 4092140 A1 EP4092140 A1 EP 4092140A1 EP 22173467 A EP22173467 A EP 22173467A EP 4092140 A1 EP4092140 A1 EP 4092140A1
Authority
EP
European Patent Office
Prior art keywords
leather
exotic
decorating
exotic leather
semi
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.)
Granted
Application number
EP22173467.6A
Other languages
German (de)
English (en)
Other versions
EP4092140C0 (fr
EP4092140B1 (fr
Inventor
Elena Lodi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP4092140A1 publication Critical patent/EP4092140A1/fr
Application granted granted Critical
Publication of EP4092140C0 publication Critical patent/EP4092140C0/fr
Publication of EP4092140B1 publication Critical patent/EP4092140B1/fr
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
    • 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
    • C14B19/00—Hand tools specially adapted for the treatment of hides, skins, or leather in the manufacture of leather and furs
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00—Tanning; Compositions for tanning
    • C14C3/02—Chemical tanning
    • C14C3/04—Mineral tanning
    • C14C3/06—Mineral tanning using chromium compounds

Definitions

  • the present invention relates to a method for decorating an exotic leather and an exotic leather decorated according to the proposed method.
  • the sector of reference is the tanning industry, specifically the production of artworks on exotic leathers or objects made from exotic leathers.
  • Exotic leathers here means leathers from exotic animals, such as alligators, crocodiles, caimans, lizards, ostriches, pythons and the like.
  • Document ITRN20000038 A1 shows a process for indelibly decorating natural tanned leather and equivalent synthetic leather, which comprises a step of positioning a perforation element in a predetermined point of a leather; a step of only partially perforating the thickness of the leather by means of the perforation element; repeating in sequence the positioning and perforating steps, with the production of holes in a predetermined number and position according to a defined design, until forming overall at least part of a precise, planned decoration.
  • Document WO2020/173532 A2 describes a method of manufacturing footwear that comprises the following steps: - providing a leather base layer - providing a leather attachment layer, - fixing the leather base layer and the leather attachment layer with an intermediate application of adhesive between them, - activating the applied adhesive - forcing the leather base layer and the leather attachment layer against each other under pressure with the adhesive between them - curing the adhesive and thereby bonding the leather base layer and the leather attachment layer to each other, and - integrating the bonded leather base layer and the leather attachment layer as part of the footwear.
  • Document ITRM20080107 A1 proposes a method for producing a decoration on tanned leather or the like, comprising the steps of: (a) providing a portion of tanned leather or the like, said portion of leather having an aesthetic surface, said aesthetic surface having already been subjected to a polishing operation; and (b) making a plurality of perforations on said aesthetic surface and injecting a coloured substance into each of said perforations.
  • Exotic leathers are characterised by irregular surfaces (for example, scaly surfaces are present in the case of crocodile leathers), which impede the application of pigments as described in the above-cited patent.
  • the application of a solvent on an exotic leather would not only not help the subsequent decorating step, but would also result in aesthetic damage to the exotic leather, which would cause its rejection.
  • the technical task at the basis of the present invention is to propose a method for decorating an exotic leather and a decorated exotic leather that overcome the above-mentioned drawbacks of the prior art.
  • the object of the present invention is to propose a method for decorating an exotic leather that assures an optimal and faithful decoration also in the case of irregular leather surfaces.
  • Another object of the present invention is to provide a method for decorating an exotic leather that allows an optimal absorption of colour by the exotic leather.
  • a further object of the present invention is to propose a method for decorating an exotic leather that allows a regular between-scale and inter-scale absorption and the production of a faithful decoration.
  • the number 1 indicates an exotic leather.
  • the exotic leather 1 referred to is a product in its own right.
  • the decoration may take place on an exotic leather of an object.
  • the method comprises a step of preparing an exotic leather 1 in a semi-finished state.
  • the exotic leather 1 is of the unfinished tanned type.
  • this type of semi-finished product is known by the name of "crust" leather.
  • This semi-finished state refers to a leather that has been tanned and dried, but not coloured.
  • the step of preparing an exotic leather 1 in a semi-finished state comprises a step of tanning the exotic leather 1 with chromium. This step is carried out in such a way that the exotic leather 1 in a semi-finished state contains a percentage of chromium comprised in the range of 6%-10%.
  • the method comprises a step of decorating the exotic leather 1 in a semi-finished state by tattooing with water-based acrylic colours.
  • the colours are then blended together to obtain different shades and tones.
  • the method preferably comprises a step of mixing the water-based acrylic colours with resin in percentages ranging from 3% to 70%. The percentage will depend on the degree of brightness desired for the final product.
  • the step of decorating the exotic leather 1 preferably takes place by means of an apparatus for tattooing on human skin of a known type. In this manner it will be possible to speed up the tattooing operations compared to painting by hand. Furthermore, the use of machinery already known for the tattooing technique enables the method to be easily exploited.
  • the method preferably comprises a step of applying a water-based fixative. This operation takes place during or after the step of decorating the exotic leather 1. The operation preferably takes place after the decoration of the leather so as to allow time for the colours to dry.
  • the water-based fixative serves to protect the decoration from aging and/or from any atmospheric agents which would impair the work.
  • the exotic leather 1 is not subjected to dyeing before being decorated. Similarly, the exotic leather 1 is not treated with a solvent.
  • the present invention also relates to an exotic leather comprising one or more decorations obtained according to the method proposed above.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP22173467.6A 2021-05-18 2022-05-16 Procédé de décoration d'un cuir exotique Active EP4092140B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102021000012848A IT202100012848A1 (it) 2021-05-18 2021-05-18 Metodo per la decorazione di una pelle esotica

Publications (3)

Publication Number Publication Date
EP4092140A1 true EP4092140A1 (fr) 2022-11-23
EP4092140C0 EP4092140C0 (fr) 2025-07-09
EP4092140B1 EP4092140B1 (fr) 2025-07-09

Family

ID=77127009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22173467.6A Active EP4092140B1 (fr) 2021-05-18 2022-05-16 Procédé de décoration d'un cuir exotique

Country Status (2)

Country Link
EP (1) EP4092140B1 (fr)
IT (1) IT202100012848A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRN20000038A1 (it) 2000-09-27 2002-03-27 Givuesse S R L Procedimento e apparecchiatura per decorare indelebilmente pelle conciata naturale e pelle sintetica equivalente; pelle decorata cosi ottenu
EP1570092A2 (fr) 2002-12-13 2005-09-07 Berluti Proc d pour r aliser un d cor sur du cuir
ITRM20080107A1 (it) 2008-02-28 2009-08-29 Filippo Piccolo Metodo di realizzazione di una decorazione su pelle conciata o simile e porzione di pelle con una decorazione realizzata secondo tale metodo.
EP3415193A1 (fr) * 2017-06-12 2018-12-19 MT Derm GmbH Dispositif d'introduction d'aiguille pour un dispositif de piquage de peau et dispositif de piquage de peau
WO2020173532A2 (fr) 2019-02-26 2020-09-03 Ecco Sko A/S Procédé de fabrication d'un article chaussant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRN20000038A1 (it) 2000-09-27 2002-03-27 Givuesse S R L Procedimento e apparecchiatura per decorare indelebilmente pelle conciata naturale e pelle sintetica equivalente; pelle decorata cosi ottenu
EP1570092A2 (fr) 2002-12-13 2005-09-07 Berluti Proc d pour r aliser un d cor sur du cuir
ITRM20080107A1 (it) 2008-02-28 2009-08-29 Filippo Piccolo Metodo di realizzazione di una decorazione su pelle conciata o simile e porzione di pelle con una decorazione realizzata secondo tale metodo.
EP3415193A1 (fr) * 2017-06-12 2018-12-19 MT Derm GmbH Dispositif d'introduction d'aiguille pour un dispositif de piquage de peau et dispositif de piquage de peau
WO2020173532A2 (fr) 2019-02-26 2020-09-03 Ecco Sko A/S Procédé de fabrication d'un article chaussant

Also Published As

Publication number Publication date
EP4092140C0 (fr) 2025-07-09
EP4092140B1 (fr) 2025-07-09
IT202100012848A1 (it) 2022-11-18

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