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EP1138788B1 - Cuir et son traitement - Google Patents

Cuir et son traitement Download PDF

Info

Publication number
EP1138788B1
EP1138788B1 EP01107634A EP01107634A EP1138788B1 EP 1138788 B1 EP1138788 B1 EP 1138788B1 EP 01107634 A EP01107634 A EP 01107634A EP 01107634 A EP01107634 A EP 01107634A EP 1138788 B1 EP1138788 B1 EP 1138788B1
Authority
EP
European Patent Office
Prior art keywords
leather
reactor
matrix material
plasma
refining method
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.)
Expired - Lifetime
Application number
EP01107634A
Other languages
German (de)
English (en)
Other versions
EP1138788A1 (fr
Inventor
Werner Ing. Schmitz
Gottfried Ing. Holzer
Wolfgang Di Vogl
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.)
Lederfabrik Vogl GmbH
Original Assignee
Lederfabrik Vogl GmbH
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 Lederfabrik Vogl GmbH filed Critical Lederfabrik Vogl GmbH
Publication of EP1138788A1 publication Critical patent/EP1138788A1/fr
Application granted granted Critical
Publication of EP1138788B1 publication Critical patent/EP1138788B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/62—Plasma-deposition of organic layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/12—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to leather
    • 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
    • C14C11/00—Surface finishing of leather

Definitions

  • the invention relates to a novel leather and a Dressing process to obtain special property profiles.
  • the proteins and collagen of the skins become durable Connections converted without typical properties of leather such as Toughness, elasticity, breathability and others are affected.
  • the leather obtained after tanning can also be treated be subjected to the leather surfaces against chemical and To largely protect mechanical influences, an even color and gloss Spread over the entire leather surface and special visual as well as handy To obtain properties of the leather.
  • the dressing consists of an increase in the value in use of the leather.
  • These finishing measures are currently in the wet process carried out by spraying suitable materials, which has the disadvantage that the leather is then subjected to a drying process again got to.
  • the prior art regarding the known types of dressing for leather are the books “Dressing and Testing of Leather” Vol. 3 Part 1 by W. Grassmann (Springer Verlag, Vienna 1998) and “Library of Leather” by Hans Herfeld (Umschau Verlag, Frankfurt am Main 1989).
  • the surface of the leather and that Collagen scaffold is covered with a functional protective layer, covering the pores stay unclogged.
  • the surface of the leather consists of a layer of protein fibers, while underneath is the collagen structure consisting of collagen fibers is located, whose webs run irregularly crisscross collagen fibers form.
  • the framework is connected across the width of the leather.
  • the leather according to the invention is characterized in that the surface located protein fibers individually from a protective layer z. B. made of silicone or Polyurethane are sheathed without the fibers sticking to the breathability with special needs. The same applies to the fibers of the collagen structure without the Pores are glued.
  • This dressing is carried out according to the invention in plasma technology at atmospheric pressure.
  • suitable materials such as. B. silicone and / or polyurethane, with which a change and new acquisition of properties of the tanned leather is made in the invention without a noticeable increase in volume of the treated leather takes place because of the strength of the Sheathing is in the nanometer range.
  • suitable materials such as. B. silicone and / or polyurethane
  • the leather is treated with plasma technology to achieve the implantation and coating. It has surprisingly been shown that when the tanned leather is treated as a substrate with gas ionized by discharge under atmospheric pressure, the matrix particles are deposited on the surface of the leather, that is to say the individual protein fibers, and the leather is collared or implanted.
  • the matrix particles preferably consist of silicone or polyurethane.
  • functional layers include: B. SiO 2 , TiO 2 , PU, silicone and indium doped with TiO (known in the art as ITO) as UV protection.
  • the art of the type of finishing according to the invention is that wafer-thin layers are applied to and / or into the leather without impairing the appearance and natural properties such as suppleness and breathability.
  • the collagen structure is like a random fiber fleece. In contrast to textile fiber fleece, the fibrous structure is a coherent fiber structure.
  • Each scaffold fiber is sheathed. The particles can also be implanted. The scaffold remains open and is not sealed.
  • the dressing according to the invention has the advantage that it takes place dry, instead of the known wet treatment, followed by drying, and wherein more importantly, a coating of the surface and a The collagen structure is sheathed without the natural properties of the Leather substrates such as suppleness and breathability are impaired, as is the case with the known dressing methods.
  • the leather is trimmed according to the invention with a dry plasma treatment become.
  • This type of treatment has the advantage that not only of the matrix the leather surface, but also the underlying collagen structure is recorded. This dressing process is also very energy efficient. No water is used and polluted.
  • the Matrix particles have high kinetic energy and turbulent movements in run in different directions.
  • the pulses can have the same polarity.
  • the atmospheric plasma is particularly characterized in that the treatment takes place under atmospheric pressure and the gas discharge current through the Use of multiple plasma torches from so-called guns is generated.
  • the matrix material is in the form of a powder or in liquid form introduced the gas stream.
  • the matrix material is atomized by the plasma flow worn and applied to the substrate with great energy.
  • Both known methods of atmospheric plasma is with gaseous (monomers) and liquid matrix materials.
  • Powdery matrix material can also adhere firmly to the fibers and scaffold to be brought.
  • the leather skin consists of a more or less dense network of collagen fibers, that should be as uniform as possible and what also with one good leather is the case.
  • the collagen network is made by the plasma treatments coated with the matrix particles and even partially penetrated without chemical properties of the leather are changed and especially breathability preserved. With the application of this treatment, a refined Product that has never existed in this quality.
  • the leather according to the invention is against UV radiation as well resistant to the evaporation of fats without suffering from suppleness, because the fats remain inside the leather. This will stop using the so treated leather even at high temperatures, for example in summer in Inside of a motor vehicle possible, since drying out is avoided.
  • the coating increases the abrasion resistance and makes cleaning easier.
  • the leather according to the invention is more universal usable and can often replace artificial leather, so that the environment less with the emissions of carbon dioxide that arise during the production of synthetic leather is burdened, because artificial leather is a petroleum derivative, in its manufacture and disposal carbon dioxide is generated. Natural leather is in contrast to Artificial leather is a renewable raw material that is carbon dioxide neutral.
  • the pre-programming of different substrate properties through the choice suitable reaction gases and matrix materials also enable an anti-fungicide and antibacterial treatment of the leather according to the invention so that it can also find its way into medical technology. It is also within the Possibilities of cleaning the leather substrate before starting the finishing process undergo activation, d. H. the substrate for the or Dressing is made more receptive.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Claims (9)

  1. Cuir tanné de toute nature pour une utilisation dans l'ensemble du secteur du traitement du cuir
    caractérisé en ce que
    la surface à base de fibres protéiques du cuir et les fibres de collagène se trouvant au-dessous et formant l'ossature sont enveloppées par la technologie des plasmas sous pression atmosphérique avec une couche de protection laissant les pores ouverts.
  2. Procédé pour le greffage d'un cuir tanné de toute nature selon la revendication 1,
    caractérisé en ce que,
    le cuir est exposé en tant que substrat à un traitement au plasma dans un réacteur sous pression atmosphérique, dans lequel le matériau de matrice est porté par le flux de plasma sous une forme nébulisée et est appliqué et entraíné avec une grande énergie sur le substrat.
  3. Procédé pour le greffage selon la revendication 2,
    caractérisé en ce que,
    le cuir est activé et/ou nettoyé dans le réacteur au moyen d'un gaz de réaction inerte.
  4. Procédé pour le greffage selon la revendication 2,
    caractérisé en ce que,
    du silicone est utilisé comme matériau de matrice dans le réacteur plasma.
  5. Procédé pour le greffage selon la revendication 2,
    caractérisé en ce que,
    du polyuréthanne est utilisé comme matériau de matrice dans le réacteur.
  6. Procédé pour le greffage selon la revendication 2,
    caractérisé en ce que,
    de l'indium (TTO) dopé avec de l'oxyde de titane (ITO) est utilisé comme matériau de matrice.
  7. Procédé pour le greffage selon la revendication 4, 5 ou 6,
    caractérisé en ce que,
    le matériau de matrice est envoyé comme liquide dans le flux de gaz du réacteur.
  8. Procédé pour le greffage selon la revendication 4, 5 ou 6,
    caractérisé en ce que,
    du matériau de matrice pulvérulent est ajouté au flux de gaz du réacteur.
  9. Procédé pour le greffage selon la revendication 2 en liaison avec une ou plusieurs des revendications précédentes,
    caractérisé en ce que,
    une tension pulsée est superposée au champ électrique du réacteur, la fréquence des impulsions individuelles se situant dans la zone des ultrasons et la tension maximale dans et la zone des kiloélectronvolts.
EP01107634A 2000-03-30 2001-03-28 Cuir et son traitement Expired - Lifetime EP1138788B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10015555 2000-03-30
DE10015555A DE10015555A1 (de) 2000-03-30 2000-03-30 Leder und dessen Zurichtung

Publications (2)

Publication Number Publication Date
EP1138788A1 EP1138788A1 (fr) 2001-10-04
EP1138788B1 true EP1138788B1 (fr) 2004-10-06

Family

ID=7636800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01107634A Expired - Lifetime EP1138788B1 (fr) 2000-03-30 2001-03-28 Cuir et son traitement

Country Status (4)

Country Link
US (1) US6610368B2 (fr)
EP (1) EP1138788B1 (fr)
AT (1) ATE278809T1 (fr)
DE (2) DE10015555A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7288293B2 (en) * 2001-03-27 2007-10-30 Apit Corp. S.A. Process for plasma surface treatment and device for realizing the process
KR20030039405A (ko) * 2001-11-13 2003-05-22 이규용 천연피혁개질 플라즈마장치 그리고 플라즈마로 처리한천연피혁 및 그 처리방법
WO2003060166A1 (fr) * 2002-01-15 2003-07-24 Conciaricerca Italia S.R.L. Procede de traitement du cuir
ITRM20020622A1 (it) * 2002-12-13 2004-06-14 Ct Sviluppo Materiali Spa Procedimento per la termospruzzatura al plasma di rivestimenti a base di ossidi semiconduttori drogati.
ITPD20030168A1 (it) 2003-07-22 2005-01-23 Pietro Balestra Precedimento per la copertura di pelli o simili
FI119923B (fi) * 2005-09-08 2009-05-15 Kemppi Oy Menetelmä ja laitteisto lyhytkaarihitsausta varten
US8945684B2 (en) * 2005-11-04 2015-02-03 Essilor International (Compagnie Generale D'optique) Process for coating an article with an anti-fouling surface coating by vacuum evaporation
US8664173B2 (en) * 2007-01-11 2014-03-04 Basf Se Premoistened cleaning disposable substrate for leather and method of preserving a leather surface by contacting said surface with said substrate
US8704120B2 (en) * 2008-07-03 2014-04-22 Esab Ab Device for handling powder for a welding apparatus
EP3415172A1 (fr) 2009-06-16 2018-12-19 TheraDep Technologies, Inc. Dispositif de soin des plaies
JP6974353B2 (ja) 2016-02-01 2021-12-01 セラデップ テクノロジーズ インコーポレイテッド 治療薬を送達するシステム及び方法
US11690998B2 (en) 2017-10-31 2023-07-04 Theradep Technologies, Inc. Methods of treating bacterial infections
WO2021117333A1 (fr) * 2019-12-09 2021-06-17 ＧＳＴ ＡｕｔｏＬｅａｔｈｅｒ Ｊａｐａｎ 合同会社 Stratifié

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JPS5854000A (ja) * 1981-09-29 1983-03-30 住化カラ−株式会社 皮革の着色方法
JPS6189372A (ja) * 1984-10-02 1986-05-07 カネボウ株式会社 立毛製品の撥水加工方法
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Also Published As

Publication number Publication date
US6610368B2 (en) 2003-08-26
US20020020024A1 (en) 2002-02-21
DE10015555A1 (de) 2001-10-18
ATE278809T1 (de) 2004-10-15
DE50103936D1 (de) 2004-11-11
EP1138788A1 (fr) 2001-10-04

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