EP1266040B1 - Spritzgegenstand zum veredeln von nachbearbeitetem leder - Google Patents

Spritzgegenstand zum veredeln von nachbearbeitetem leder Download PDF

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Publication number
EP1266040B1
EP1266040B1 EP99962502A EP99962502A EP1266040B1 EP 1266040 B1 EP1266040 B1 EP 1266040B1 EP 99962502 A EP99962502 A EP 99962502A EP 99962502 A EP99962502 A EP 99962502A EP 1266040 B1 EP1266040 B1 EP 1266040B1
Authority
EP
European Patent Office
Prior art keywords
layer
transfer member
layers
combination
coat layer
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
EP99962502A
Other languages
English (en)
French (fr)
Other versions
EP1266040A1 (de
Inventor
Pushpinder Kumar Kaushik
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.)
Max India Ltd
Original Assignee
Max India Ltd
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Filing date
Publication date
Application filed by Max India Ltd filed Critical Max India Ltd
Publication of EP1266040A1 publication Critical patent/EP1266040A1/de
Application granted granted Critical
Publication of EP1266040B1 publication Critical patent/EP1266040B1/de
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

Definitions

  • This invention relates to a transfer member for treatment of leather so as to impart gloss properties thereto.
  • split leather was subjected to 'the step of lamination, pigmentation or transfer foil so as to upgrade or improve the quality of split leather.
  • split leather is impregnated with binder and waxes so that when compressed a release takes place from the plate. After impregnation it is then laminated, pigmented or treated with a transfer foil.
  • a disadvantage is that the fiber bundles do not get concealed and continue to be in a standing position.
  • a transfer foil is disclosed in JP-A- 05 124 394. This is constituted of a base film, peeling layer and colouring adhesive layer. This prior art relates to applying design to artifical leather or synthetic leather.
  • An object of this invention is to propose a transfer member for treatment of leather and so as to impart gloss properties thereto.
  • Another object of this invention is to propose a transfer member for treatment of leather and so as to provide a uniform feel to leather.
  • Still another object of this invention is to propose a transfer member for treatment of leather and which provides good plate releasing properties.
  • Yet another object of this invention is to propose a transfer member for treatment of leather and which provides a good sealing of fibers.
  • a further object of this invention is to propose a transfer member for treatment of leather and which provides grain flatness.
  • Another object of this invention is to propose a transfer member for imparting a gloss together with a colour, print or metallic finish to leather.
  • a transfer member for imparting gloss properties to leather comprising a gloss film of at least two co-extruded layers and, wherein, the inner layer is the active or gloss layer and the outer layer is a colayer, a carrier or substrate layer releasably held to said outer layer.
  • the gloss film preferably comprises three coextruded layers and wherein the inner layer has the gloss properties, an intermediate layer is the colayer which contributes to the bulk properties of the film and further is a storage layer for the migratory chemicals, and an outer layer which is a colayer.
  • a carrier such as paper is adhered to the outer layer.
  • the inner layer comprises a resin layer of isotactic polypropylene alone or in combination with random ethylene propylene copolymer present in an amount of 0 to 40% by weight.
  • the intermediate layer comprises isotactic polypropylene and migratory additives, which are antistatic and slip agents.
  • the outer layer also comprises isotactic polypropylene with an additive, which is an antiblock agent.
  • a stiffener such as paper is adhered to the outer layer by means of an adhesive.
  • the inner layer may additionally comprise migratory chemicals present in the amount of 0-5%, migratory chemicals being antistatic and slip agents selected from erucamide stearamide, silicon oil, stearic acid and stearates used alone or in any combination thereof. Further, the inner layer may comprise an antiblock agent present in the amount of 500-4000 PPM. The antiblock agents are selected from silica, silicate, clay, talc and quartz alone or in any combination thereof. The haziness or glossyness of the inner layer is varied by changing the thickness of the inner layer and quantity of migratory chemicals and antiblock agents in the composition.
  • the migratory chemicals comprising said antistatic and slip agents are present in the amount of 500-10000 PPM by weight in the intermediate layer.
  • the outer layer is identical to the inner layer and comprises isotactic polypropylene in combination with random co-polymer of ethylene propylene, and where ethylene propylene is present in the amount of 0 to 40% by weight.
  • the film further comprises a paper layer adhered to the outer layer.
  • the paper layer is a cellulosic paper such as cromo art paper and having a grammage of 30 to 100 g/m 2 .
  • the isotactic polypropylene present in the layers has an average molecular wt. of 25000 to 1,000,00, a melt flow index of 1-25 at 230°C/2.16 kg and density of 0.892 to 0.92.
  • an antiblock agent is provided in the outer layer.
  • the antiblock agent may or may not be provided in the outer layer.
  • an antiblock agent is provided in the outer and in the inner layer.
  • the outer layer may be subjected to a corona treatment, flame treatment or chemical treatment so as apply an adhesive thereon to secure a paper layer therewith.
  • the paper layer acts as a stiffener and absorbs excess heat during the plating of the leather.
  • the transfer member of the present invention has a thickness of 8-45 x 10 -6 m (8 to 45 microns). If the thickness is greater than 45 x 10 -6 m (microns), it does not affect the workability or properties of the film, but no advantages are derived therefrom and only adds to the end cost of the film. If the thickness is less than 8 x 10 -6 m (microns), the required quality and properties are then not achieved. Both the inner and outer layers should have sufficient thickness in the instance of two layers film, in order to store and release the chemicals therefrom. Similarly, the inner, intermediate and outer layers should have sufficient thickness in a three layers structure for storage and release of said chemicals. Preferably the transfer member has a thickness of 12-45x10 -6 m (12 to 45 microns).
  • the inner and intermediate layers have each a thickness of 2-8x10 -6 m (2 to 8 microns) and preferably a thickness of 2-5x10 -6 m (2 to 5 microns). If the thickness of the inner layer is less than 2x10 -6 m (microns), then gloss would reduce. If the thickness is more than 8x10 -6 m (microns), and the outer, intermediate and inner layers are extruded then problems may arise in the coextrusion of the layers.
  • transfer member comprising only the gloss film on a carrier or substrate.
  • the transfer member of the present invention also envisages, a transfer member having a foil in addition to the gloss film, said foil being selected from a colour, print or metallized foil.
  • the transfer member comprises a carrier or substrate having the gloss film, the foil being provided on said film.
  • the foil comprises of a plurality of layers with at least an outermost layer being an adhesive layer adapted to contact the leather surface, an inner most layer being a release layer in contact with the film and an active layer provided therebetween, and wherein the active layer is either a print, colour or metallized layer.
  • the colour foil further comprises a feel modifier layer with or without top protecting coat layer on said release coating, said colorant layer provided onto said feel modifier layer.
  • the intermediate layers comprise a top coat layer on said release layer, said metallized layer being provided onto said top coat layer to provide metal finish to the leather.
  • the print foil intermediate layers comprise a feel modifier layer provide onto said release layer, a print coat layer provided onto said feel modifier layer.
  • a top coat layer may or may not be provided on said feel modifier layer.
  • the feel modifier layer in itself comprises a plurality of layers.
  • the feel modifier layer comprises at least two layers.
  • One of said layers is a mixture of feel modifiers and a top coat or feel modifier and cover coat.
  • the feel modifier layer comprises three layers namely a feel modifier layer adjacent to the release layer, a top coat layer adjacent to the feel modifier layer, and a covering layer adjacent the top coat layer.
  • the feel modifier layer comprises a combination of or only a single wax such as microcrystalline wax, paraffin, natural or synthetic waxes in solution or emulsion form.
  • the waxes incorporated in the feel modifier imparts a waxy feel to leather.
  • the feel modifier layer also comprises oils used alone or in combination with polydialkyl siloxane, olefin modified siloxanes, diethylene modified silicon oils, epoxy modified silicon oils, alcohol modified silicon oils.
  • the feel modifier layer comprises a combination of waxes and lubricants as this also improves the scuff resistance properties. If a waxy feel is required, then the content of waxes present in the feel modifier layer is greater than that of the lubricants. However, if a silky feel is required then the content of lubricants present in the feel modifier layer is greater than the waxes.
  • the feel modifier layer can consist of a combination of waxes and lubricants, or separate layers of waxes and lubricants.
  • the top coat layer is a protective coating for protecting the cover coat layer.
  • the coat layer consists of lacquer and lacquer emulsions of various resins, such as nitrocellulose copolymer of vinyl chloride and vinyl acetate, polyurethane and polyamides with or without cross linking agents with or without fillers, such as silica.
  • the cover coat layer comprises essentially of natural resins such as shellac, caesin, albumin and gelatine or plasticizers.
  • the cover coat layer may be selected from natural resins or synthetic resins such as acrylic, methacrylic, synthetic rubber, vinyl resin, nitrocellulose resins or polyurethane.
  • the natural resin may be present with the synthetic resin.
  • the cover coat layer may also include colourants with or without dispersing agents, with or without cross linking or curing agents.
  • the colourants may be selected from metallic pigments, pearl pigments of organic or inorganic nature or dyestuffs.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Decoration By Transfer Pictures (AREA)
  • Laminated Bodies (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Gloves (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (21)

  1. Ein Transferelement, um Leder Glanzeigenschaften zu verleihen, mit einem Glanzfilm aus wenigstens zwei koextrudierten Schichten, wobei die innere Schicht die aktive oder Glanzschicht ist und die äußere Schicht eine Zusatzschicht, einer Träger- oder Substratschicht, die lösbar an der genannten äußeren Schicht gehalten ist.
  2. Ein Transferelement gemäß Anspruch 1,
    wobei der genannte Glanzfilm drei Schichten umfasst, die die genannte innere Schicht, eine Zwischenschicht und die genannte äußere Schicht sind.
  3. Ein Transferelement gemäß Anspruch 1,
    wobei die innere Schicht isotaktisches Polypropylen allein oder in Kombination mit einem beliebigen Ethylenpropylen-Copolymer enthält, das in der Menge von 0 bis 40 Gewichts-% vorliegt, und optional Additiven die Antistatik- und Gleitmittel sind, die in einer Menge von 0 bis 5 Gewichts-% vorliegen, und optional einem weiteren Additiv, das ein Antiblockmittel ist, das in einer Menge von 500 - 4000 ppm nach Gewicht von isotaktischem Polypropylen vorliegt.
  4. Ein Transferelement gemäß Anspruch 2,
    wobei die Zwischenschicht isotaktisches Polypropylen enthält und die genannten Additive, die in der Menge von 500 - 10000 ppm nach Gewicht von isotaktischem Polypropylen vorliegen.
  5. Ein Transferelement gemäß Anspruch 1,
    wobei die äußere Schicht isotaktisches Polypropylen allein oder in Kombination mit einem beliebigen Ethylenpropylen-Copolymer enthält.
  6. Ein Transferelement gemäß den Ansprüchen 1 bis 5,
    wobei die genannten antistatischen und Gleitmittel gewählt werden von Erucamidsteramid, Siliconöl, Stearinsäure und Stearaten, die allein benutzt werden oder in jeglicher Kombination, wobei das genannte Antiblockmittel gewählt wird aus Silika, Silikalehm, Talk und Quarz alleine oder in jeglicher Kombination davon.
  7. Ein Transferelement gemäß Anspruch 1,
    wobei die Dicke von jeder der genannten inneren und äußeren Schichten 2 - 8 x 10-6 m (2 bis 8 Micron) ist.
  8. Ein Transferelement gemäß Anspruch 1,
    wobei die Dicke des Elementes 8 - 45 x 10-6 m (8 bis 45 Micron) ist.
  9. Ein Transferelement gemäß Anspruch 1,
    das eine Folie enthält, die auf dem genannten Film vorgesehen ist,
    wobei die Folie gewählt wird aus einer Druck-, Farb- oder metallisierten Folie.
  10. Ein Transferelement gemäß Anspruch 9,
    wobei jede der genannten Folien eine Vielzahl von Schichten enthält, mit wenigstens einer äußersten Schicht, die eine Haftschicht ist, die angepasst ist, um die Lederschicht zu kontaktieren, und einer innersten Schicht, die eine Löseschicht in Kontakt mit dem Film ist, und einer aktiven Schicht, die dazwischen vorgesehen ist, und wobei die aktive Schicht entweder eine Druck-, Farb- oder metallisierte Schicht ist.
  11. Ein Transferelement gemäß Anspruch 10,
    wobei die Druck- und Farbfolie jeweils eine Gefühlveränderungsschicht haben, die eine Vielzahl von Schichten enthalten, und wobei eine der Schichten eine Gefühlveränderungsschicht ist und die andere Schicht ist eine oberste Mantelschicht oder eine Abdeckmantelschicht.
  12. Ein Transferlement gemäß Anspruch 10,
    wobei die Druck- und Farbfolie jeweils eine Gefühlveränderungsschicht hat, die eine Vielzahl von Schichten enthält und wobei eine dieser Schichten eine Gefühlveränderungsschicht ist, benachbart zu der Lösebeschichtung, eine oberste Mantelschicht benachbart zu der Gefühlveränderungsschicht und eine Abdeckschicht benachbart zu der obersten Mantelschicht.
  13. Ein Transferelement gemäß Anspruch 10,
    wobei die metallisierte Folie eine oberste Mantelschicht auf der genannten Lösemantelschicht enthält.
  14. Ein Transferelement gemäß Anspruch 11 und 12,
    wobei der Gefühlveränderer eine Kombination von Wachsen oder nur ein einzelnes Wachs enthält wie mikrokristallines Wachs, Paraffin, natürliche oder synthetische Wachse in Lösung oder Emulsionform.
  15. Ein Transferelement gemäß Anspruch 11 und 12,
    wobei die Gefühlveränderungsschicht ebenfalls Öle enthält, die einzeln oder in Kombination benutzt werden mit Polydiaekylsyloan, Olein modifizierte Syloane, Dyethylen modifizierte Siliconöle, Epoxymodifizierte Siliconöle, Alkohol-modifizierte Siliconöle.
  16. Ein Transferelement gemäß Anspruch 11 und 12,
    wobei die Gefühlveränderungsschicht Kombinationen enthält von Wachsen und Schmiermitteln von unterschiedlichen Schichten von Wachsen und Schmiermitteln.
  17. Ein Transferelement gemäß Anspruch 11 bis 13,
    wobei die oberste Mantelschicht Lack enthält und Lackemulsionen verschiedener Harze, wie Nitrozellulosecopolymer von Vinylchlorid und Vinylacetat, Polyurethan und Polyamiden mit oder ohne Vernetzungsmittel, mit oder ohne Füller wie Silicon.
  18. Ein Transferelement gemäß Anspruch 11 und 12,
    wobei die Abdeckmantelschicht im Wesentlichen besteht aus natürlichen Harzen wie Schellack, Kasein, Albumin und Gelatine oder Weichmachern.
  19. Ein Transferelement gemäß Anspruch 11 und 12,
    wobei die Abdeckmantelschicht synthetisches Harz enthält wir Acryl-, Methacryl-, synthetisches Gummi, Vinylharz, Nitrocelluloseharze oder Polyurethane oder eine Kombination der genannten natürlichen und synthetischen Harze.
  20. Ein Transferelement gemäß Anspruch 11 und 12,
    wobei die Abdeckmantelschicht ebenfalls Farbmittel enthalten kann mit oder ohne Dispergiermittel, mit oder ohne Vernetzungs- oder Aushärtmittel.
  21. Ein Transferelement gemäß Anspruch 13,
    wobei eine Druckmantelschicht zwischen der genannten metallisierten Schicht und der obersten Mantelschicht ist.
EP99962502A 1999-11-01 1999-11-01 Spritzgegenstand zum veredeln von nachbearbeitetem leder Expired - Lifetime EP1266040B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IN1999/000058 WO2001032938A1 (en) 1999-11-01 1999-11-01 A transfer member for imparting a finish leather

Publications (2)

Publication Number Publication Date
EP1266040A1 EP1266040A1 (de) 2002-12-18
EP1266040B1 true EP1266040B1 (de) 2004-09-22

Family

ID=11076674

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EP99962502A Expired - Lifetime EP1266040B1 (de) 1999-11-01 1999-11-01 Spritzgegenstand zum veredeln von nachbearbeitetem leder

Country Status (7)

Country Link
EP (1) EP1266040B1 (de)
CN (1) CN1177941C (de)
AT (1) ATE277201T1 (de)
DE (1) DE69920535T2 (de)
HK (2) HK1047962A1 (de)
TR (1) TR200201184T2 (de)
WO (1) WO2001032938A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2424256C2 (ru) * 2006-08-04 2011-07-20 Плейтекс Продактс, Инк. Изделия с хорошей смазываемостью, аппликатор тампона, ствол и плунжер аппликатора тампона
JP5209280B2 (ja) * 2007-11-20 2013-06-12 株式会社ジェイテクト 密封装置
CN104074057B (zh) * 2014-06-26 2016-05-04 江苏宝泽高分子材料股份有限公司 一种合成革用变色抛光处理剂及其制备方法
CN105755187A (zh) * 2016-02-19 2016-07-13 北京泛博化学股份有限公司 一种抗静电剂及其制备方法和应用
CN111548241A (zh) * 2020-06-28 2020-08-18 上海集瀛汽车安全技术有限公司 一种新型mgg用气体发生剂

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS602989B2 (ja) * 1977-08-01 1985-01-25 スコツト ペ−パ− コンパニ− 剥離シ−ト及びその製造方法
DE3401677A1 (de) * 1984-01-19 1985-07-25 Oike Industrial Co., Ltd., Kyoto Abdruckfolie
JPH05124394A (ja) * 1991-11-07 1993-05-21 Toppan Printing Co Ltd 皮革表現転写箔

Also Published As

Publication number Publication date
CN1177941C (zh) 2004-12-01
DE69920535T2 (de) 2005-09-29
EP1266040A1 (de) 2002-12-18
CN1375014A (zh) 2002-10-16
HK1047962B (zh) 2005-07-15
ATE277201T1 (de) 2004-10-15
WO2001032938A1 (en) 2001-05-10
TR200201184T2 (tr) 2002-09-23
HK1047962A1 (en) 2003-03-14
DE69920535D1 (de) 2004-10-28

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