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Title:
MULTILAYER FINISHING PRODUCT FOR SURFACE FINISHING OF SKINS, FABRICS, PAPER OR MICROFIBER
Document Type and Number:
WIPO Patent Application WO/2018/025156
Kind Code:
A1
Abstract:
Described is a multi-layer finishing product (10) for the surface finishing of leather, fabrics, paper or microfibre comprising a transparent adhesive layer (2), a polymer layer (1) and a transparent protective layer (4). The polymer layer (1) is interposed between the transparent adhesive layer (2) and the transparent protective layer (4). The transparent adhesive layer (2) is configured to penetrate imperfections of a layer of leather, fabric, paper or microfibre (3) allowing the polymer layer (1) and the transparent protective layer (4) to anchor and level the surface of the layer of leather, fabric, paper or microfibre (3), in a configuration for heating and melting the multi-layer finishing product (10).

Inventors:
PETROSELLI, Remo (Via Poggiadorno 5, Castelfranco di Sotto, 56022, IT)
Application Number:
IB2017/054649
Publication Date:
February 08, 2018
Filing Date:
July 31, 2017
Export Citation:
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Assignee:
CHIMONT INTERNATIONAL SPA (Via Barsanti 32, Montopoli in Val d'Arno, 56020, IT)
International Classes:
B32B27/06; B32B27/12; B32B7/12; B32B9/02; B32B9/04; B32B5/02; B32B29/00; B32B29/06; B32B3/00; B32B7/02
Attorney, Agent or Firm:
BUSSU, Christian (Viale A. Gramsci 42, Firenze, 50132, IT)
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Claims:
CLAIMS

1. A multi-layer finishing product (10) for the surface finishing of leather, fabric, paper or microfibre comprising

a transparent adhesive layer (2),

a polymer layer (1 ),

a transparent protective layer (4),

wherein the polymer layer (1) is interposed between the transparent adhesive layer (2) and the transparent protective layer (4),

and wherein the transparent adhesive layer (2) is configured to penetrate imperfections of a layer of leather, fabric, paper or microfibre (3) allowing the polymer layer (1 ) and the transparent protective layer (4) to anchor and level the surface of the layer of leather, fabric, paper or microfibre (3), in a configuration for heating and melting the multi-layer finishing product (10).

2. The multi-layer finishing product (10) according to claim 1 , wherein the polymer layer (1) is transparent.

3. The multi-layer finishing product (10) according to claim 1 , wherein the polymer layer (1) is tinted.

4. The multi-layer finishing product (10) according to any one of the preceding claims, wherein the polymer layer (1) comprises at least two polymer sub-layers having different characteristics to each other.

5. The multi-layer finishing product (10) according to claim 1 , wherein the transparent adhesive layer (2) is configured to melt between a temperature value of approximately 70°C and approximately 120°C, preferably 95°C.

6. The multi-layer finishing product (10) according to any one of the preceding claims, wherein the multi-layer finishing product is such as to penetrate in imperfections of the layer of leather, fabric, paper or microfibre (3) using the action of a compression element.

7. A leather product (P) comprising a multi-layer finishing product according to any one of claims 1 to 6.

8. A fabric product (P) comprising a multi-layer finishing product according to any one of claims 1 to 6.

9. A paper product (P) comprising a multi-layer finishing product according to any one of claims 1 to 6.

10. A microfibre product (P) comprising a multi-layer finishing product according to any one of claims 1 to 6.

Description:
Multilayer finishing product for surface finishing of skins, fabrics, paper or microfiber

DESCRIPTION

Technical field

This invention relate to a multi-layer finishing product for the surface finishing of leather, fabrics, paper or microfibre.

Background art

This surface finishing is achieved in the prior art for example by spraying, by means of a roller or with a curtain coating machine. Currently, the finishing product (resin, varnish etc.) is applied directly in a liquid form (with H20 and/or solvents).

Disadvantageously, the leather (but also the fabric, the paper and the microfibre) has imperfections which can be, for example, due to small holes or scars present on the skin of the animal. The treatments listed above cover perfectly these imperfections, resulting in a surface which is not perfectly flat, and, therefore, such as to require further processing which requires time and money.

Not all of the material is deposited on the surface with the spray method and even approximately half of the product bounces off and is lost.

The application by roller causes a loss of material in the start-up step and during the regular maintenance of the latter; also, on account of the heating of the roller, there is evaporation of the product since it is in a liquid form.

The.curtain coating machine operates by depositing product in a cascade fashion; it is therefore a process with excess product, with consequent waste.

Water and solvents also penetrate into the leather (and also into the fabric, paper and microfibre), resulting in shrinkage and hardening of the latter. Moreover, further processing is necessary to give strength, sheen and a better feeling when touched.

Disclosure of the invention An aim of this invention is to provide means for overcoming the drawbacks of the prior art.

More specifically, this invention relates to a multi-layer finishing product as defined in the accompanying claims.

Brief description of the drawings

Further features and advantages of the invention are described in more detail below, with reference to a preferred, non-limiting embodiment of the multi-layer finishing product with reference to the accompanying drawing in which:

- Figure 1 shows the multi-layer finishing product in a step of applying on a layer of, for example, leather.

- Figure 2 shows the multi-layer finishing product applied on a layer of, for example, leather.

Detailed description

A multi-layer finishing product 10 is described below with reference to the embodiment of Figures 1 and 2.

Reference will be made hereinafter to a layer of leather but this invention may also be applied on layers of fabric, paper and microfibre.

The multi-layer finishing product 10 for the surface finishing of leather comprises two layers: a polymer layer 1 and a transparent adhesive layer 2 and a transparent protective layer 4.

The transparent adhesive layer 2 is the one which is in direct contact with a layer of leather 3 and is configured to penetrate into the imperfections normally present in it. Moreover, the adhesive layer 2 allows the polymer layer 1 and the protective layer 4 to anchor to the layer of leather 3 and therefore level it, finishing it superficially in a configuration for heating and melting the multi-layer finishing product 10.

This transparent adhesive layer 2 is configured for melting between a temperature value between approximately 70°C and 120°C, preferably 95°C.

As an alternative to what is illustrated in Figure 1 , the polymer layer 1 may be formed by several layers of polymer having different characteristics to obtain specific degrees of transparency and cover, brightness and intensity.

The multi-layer finishing product 10 is also such as to penetrate in the imperfections of the layer of leather 3 using the action of a compression element.

Figure 2 shows a portion of a leather product "P" comprising a multi-layer finishing product 10 as described above. It is understood that this invention may be applied on fabric, paper or microfibre products.