DE202006007957U1 - Reverse-finished leather comprises an organic finishing layer containing polysiloxane prepolymer particles on a structured gloss-determining silicone rubber base layer - Google Patents

Reverse-finished leather comprises an organic finishing layer containing polysiloxane prepolymer particles on a structured gloss-determining silicone rubber base layer Download PDF

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Publication number
DE202006007957U1
DE202006007957U1 DE200620007957 DE202006007957U DE202006007957U1 DE 202006007957 U1 DE202006007957 U1 DE 202006007957U1 DE 200620007957 DE200620007957 DE 200620007957 DE 202006007957 U DE202006007957 U DE 202006007957U DE 202006007957 U1 DE202006007957 U1 DE 202006007957U1
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DE
Germany
Prior art keywords
silicone rubber
structured
gloss
reverse
rubber base
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Expired - Lifetime
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DE200620007957
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German (de)
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BASF SE
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Individual
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Priority to DE200620007957 priority Critical patent/DE202006007957U1/en
Publication of DE202006007957U1 publication Critical patent/DE202006007957U1/en
Priority to AT0057806U priority patent/AT9762U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C14C11/003—Surface finishing of leather using macromolecular compounds

Abstract

Reverse-finished leather comprises an organic finishing layer containing 1-8 wt.% polysiloxane prepolymer particles with a size of 3-13 mu m on a structured gloss-determining silicone rubber base layer.

Description

Die Erfindung betrifft ein Leder mit einer polymeren Zurichtung, die ganz oder teilweise im Umkehrverfahren hergestellt wurde. Insbesondere betrifft die Erfindung ein im umkehrverfahren hergestelltes Leder bei dem die Zurichtung auf einer strukturierte Silikonkautschukunterlage ganz oder teilweise hergestellt wurde. Das bedeutet, das zumindest immer die Finishschicht des Leders auf der Silikonkautschukunterlage hergestellt wurde und die Struktur und den Glanzgrad von der Silikonkautschukunterlage erhältThe The invention relates to a leather having a polymeric finish, the wholly or partly by inversion. Especially The invention relates to a reversibly produced leather in which the dressing on a structured silicone rubber pad wholly or partly made. That means that, at least always the finishing layer of the leather on the silicone rubber backing and the structure and gloss level of the silicone rubber backing receives

Um bestimmte Eigenschaften, vor allem aber die Farbabriebeigenschaften zu verbessern und die Haptik angenehmer zu gestalten ist es bekannt und erforderlich der obersten Finishschicht des Leders ein sogenanntes Griffmittel auf Basis einer Silikonemulsion, die der organischen Kunststoffdispersion zugeschlagen wird, zu verwenden.Around certain properties, but especially the Farbabriebeigenschaften it is known to improve and make the feel more pleasant and required the topmost finish layer of the leather a so-called Handle based on a silicone emulsion, the organic Plastic dispersion is added to use.

Die Silikonemulsion besitzt beim Umkehrverfahren, wenn Silikonkautschukmatrizen eingesetzt werden, den Nachteil, dass sich der Glanzgrad und die Struktur der Silikonkautschukmatrize nach wenigen Abformungen verändern (glänzend wird), weil sich die niedermolekularen Bestandteile der Silikonemulsion auf der Oberfläche der Silikonkautschukmatrize zu einem Film aufbauen, der schmierig ist und nur mit Lösungsmittel entfernt werden kann.The Silicone emulsion possesses in the reversal process when silicone rubber matrices be used, the disadvantage that the gloss level and the Change the structure of the silicone rubber matrix after a few impressions (becomes shiny), because the low molecular weight components of the silicone emulsion on the surface to build up the silicone rubber matrix into a film that is greasy is and only with solvent can be removed.

Der Erfindung liegt die Aufgabe zugrunde die positiven Vorteile des mitverwendeten Silikons am fertigen Produkt zu erhalten und die Nachteile bei der Produktion, welche durch die Ablagerungen des niedermolekularen Silikons entstehen, auszuschließen.Of the Invention is the object of the positive benefits of to get used silicone on the finished product and the Disadvantages in the production, which are due to the deposits of low molecular weight silicone arise, exclude.

Die Aufgabe wird dadurch gelöst, indem anstelle einer niedermolekularen Silikonemulsion, die beim Trocknen cremig, schmierige Filme hinterlässt, eine Silikondispersion verwendet wird deren Partikel aus einem Polysiloxanprepolymer bestehen und die Partikel eine Größe zwischen 3 μ und 13 μ besitzen. Diese reaktiven Polysiloxanpartikel bilden nach Wasserentzug einen Film der folienartige elastomere Eigenschaften aufweist.The Task is solved by instead of a low molecular weight silicone emulsion used in the Dry creamy, greasy films leaves, a silicone dispersion is used whose particles consist of a Polysiloxanprepolymer and the particles are a size between 3 μ and Own 13 μ. These reactive polysiloxane particles form a film after removal of water having film-like elastomeric properties.

Diese mehr oder weniger, bei der Verarbeitung festen Partikel emigrieren nicht weil sie fest in der organischen polymeren Dispersion verankert sind, dadurch bilden sie keine Ablagerungen auf der Silikonkautschukunterlage und erleichtern auch die Verklebung der vorfabrizierten Finishschicht auf der Unterlage mit weiteren Schichten.These more or less, emigrate when processing solid particles not because they are firmly anchored in the organic polymeric dispersion, As a result, they do not form deposits on the silicone rubber backing and also facilitate the bonding of the prefabricated finish layer on the surface with further layers.

Während bei der niedermolekularen Emulsion die Silikonkautschukunterlagen nur max. 300 Abformungen aushielten werden beim Einsatz der Silikondispersion 800 Abformungen und mehr erreicht.While at the low molecular weight emulsion the silicone rubber pads only Max. 300 impressions are sustained when using the silicone dispersion Achieved 800 impressions and more.

Der anorganische Anteil ist in der fertigen polymeren Finishschicht mit einem Gewichtsanteil zwischen 1 % und 8 % vorhanden und analythisch leicht nachzuweisen weil alle anderen Bestandteile außer vielleicht einiger Pigmente organisch sind.Of the inorganic content is in the finished polymeric finish layer present with a weight proportion between 1% and 8% and analytic easy to prove because all other ingredients except maybe of some pigments are organic.

Claims (1)

Im Umkehrverfahren zugerichtetes Leder (1) mit einer organischen Finishschicht (3) die ein Silikon enthält und die auf einer strukturierten, auch den Glanzgrad bestimmenden Silikonkautschukunterlage hergestellt wurde, dadurch gekennzeichnet, dass die anorganische Kunststofffinischschicht (3) zwischen 1 und 8 Gewichtsprozent Polyisiloxankautschuk enthält, welcher in Teilchengröße zwischen 3 μ und 13 μ in der Finishschicht (3) eingelagert ist und das diese Finishschicht (3) mit einer oder mehreren Schichten (2) mit dem Lederträger (1) fest verbunden ist.Reversed leather ( 1 ) with an organic finishing layer ( 3 ) which contains a silicone and which has been produced on a structured, even gloss-determining silicone rubber backing, characterized in that the inorganic plastic-Finnish layer ( 3 ) contains between 1 and 8% by weight of polyisiloxane gum which has a particle size between 3 μ and 13 μ in the finish layer ( 3 ) and that this finishing layer ( 3 ) with one or more layers ( 2 ) with the leather carrier ( 1 ) is firmly connected.
DE200620007957 2006-05-18 2006-05-18 Reverse-finished leather comprises an organic finishing layer containing polysiloxane prepolymer particles on a structured gloss-determining silicone rubber base layer Expired - Lifetime DE202006007957U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200620007957 DE202006007957U1 (en) 2006-05-18 2006-05-18 Reverse-finished leather comprises an organic finishing layer containing polysiloxane prepolymer particles on a structured gloss-determining silicone rubber base layer
AT0057806U AT9762U1 (en) 2006-05-18 2006-07-27 A COATED LEATHER COMPRISING A FINISHING LAYER MADE OF AN ORGANIC PLASTIC DISPERSION CONTAINING A SILICONE BASED HANDLING AGENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200620007957 DE202006007957U1 (en) 2006-05-18 2006-05-18 Reverse-finished leather comprises an organic finishing layer containing polysiloxane prepolymer particles on a structured gloss-determining silicone rubber base layer

Publications (1)

Publication Number Publication Date
DE202006007957U1 true DE202006007957U1 (en) 2006-07-20

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DE200620007957 Expired - Lifetime DE202006007957U1 (en) 2006-05-18 2006-05-18 Reverse-finished leather comprises an organic finishing layer containing polysiloxane prepolymer particles on a structured gloss-determining silicone rubber base layer

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AT (1) AT9762U1 (en)
DE (1) DE202006007957U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT506075B1 (en) * 2008-05-09 2009-06-15 Schaefer Philipp COATED LEATHER
EP2247439A1 (en) * 2008-02-27 2010-11-10 Basf Se Multi-layer composite materials comprising a cellulose-containing layer, corresponding method of production and use thereof
US9234071B2 (en) 2007-03-21 2016-01-12 Basf Se Aqueous dispersions and their use for the production of sheet-like substrates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9234071B2 (en) 2007-03-21 2016-01-12 Basf Se Aqueous dispersions and their use for the production of sheet-like substrates
EP2247439A1 (en) * 2008-02-27 2010-11-10 Basf Se Multi-layer composite materials comprising a cellulose-containing layer, corresponding method of production and use thereof
AT506075B1 (en) * 2008-05-09 2009-06-15 Schaefer Philipp COATED LEATHER

Also Published As

Publication number Publication date
AT9762U1 (en) 2008-03-15

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20060824

R197 New subsequently filed claims on ip dossier
R163 Identified publications notified

Effective date: 20061215

R081 Change of applicant/patentee

Owner name: BASF SE, DE

Free format text: FORMER OWNER: SCHAEFER, PHILIPP, 30175 HANNOVER, DE

Effective date: 20070509

R081 Change of applicant/patentee

Owner name: BASF SE, DE

Free format text: FORMER OWNER: BASF AG, 67063 LUDWIGSHAFEN, DE

Effective date: 20080421

R150 Term of protection extended to 6 years

Effective date: 20090701

R151 Term of protection extended to 8 years
R151 Term of protection extended to 8 years

Effective date: 20120814

R152 Term of protection extended to 10 years
R152 Term of protection extended to 10 years

Effective date: 20140814

R071 Expiry of right