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Method for producing laminate

A technology for laminating materials and solid materials, applied in the directions of lamination, lamination auxiliary operations, chemical instruments and methods, etc., can solve problems such as alumina particles that cannot be reliably avoided, shorten debugging time, reduce material costs, The effect of simplifying cost reduction

Active Publication Date: 2013-08-28
SURFACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not possible to reliably avoid aluminum oxide particles protruding from the surface

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] MDF boards with a size of about 2×3m are cleaned, leveled and tempered. Apply an acidic hardener for urea-formaldehyde adhesives (hardener 2547 - Akzo Nobel) at ambient temperature with an application weight of 5-8 g / m² by means of a roller coater and light initial drying with an IR radiant , so that the layer is resistant to subsequent glue (urea-formaldehyde glue 1206 - Akzo Nobel) to an applied weight of 30-40g / m 2 roller coating. Lay down the printed decorative paper by roller on the still wet glue and in the calender at 160kN / cm 2 The pressing was carried out with a roll temperature of 190°C. The paper is then cut in the gaps between the individual boards. The gap between the individual plates introduced into the calender is regulated so that the decorative paper is placed on each plate in a recorded precise manner. Penetration of the liquid binder through the paper is avoided by properly adjusting the binder application and the viscosity of the binder. The bo...

Embodiment 2

[0043] MDF boards with a size of about 2×3m are cleaned, leveled and tempered. The acidic hardener for urea-formaldehyde adhesives (hardener 2547—Akzo Nobel) was applied by means of a roller coating device at ambient temperature with an application weight of about 8 g / m 2 and light initial drying was carried out with an IR irradiator. Approx. 40 g / m is applied thereon again using a roller 2 (Urea-formaldehyde glue 1206 - Akzo Nobel) glue layer. Lay by roller on still wet adhesive layer with a weight per unit area of ​​60 g / m 2 and pressed in a calender at a roll temperature of 160 kN / cm and 190° C., wherein the binder was at least partially cured. Here the outer surface of the paper is unchanged, ie the glue does not penetrate. The paper is then cut in the gaps between the boards. The plates are immediately conveyed to a printing station where the decoration is printed on in the first color by means of indirect gravure printing. The second color and the third color are ap...

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Abstract

The invention relates to a method for producing a decorated laminate having a plate-shaped core made of wood or wood material, a decorative layer on at least one side of the core, and a cover layer made of aminoplast on the decorative layer, comprising the following steps: attaching the decorative layer, applying a layer made of an aqueous solution of an aminoplast precursor to form a cover layer on the decorative layer, at least partially drying the cover layer, curing the aminoplast under pressure and heat, wherein a part of said solution of said aminoplast precursor is initially applied and the partial layer thus generated is dried and said step is repeated at least twice, in order to form the final cover layer.

Description

technical field [0001] The invention relates to a method for producing laminates, in particular laminates having a wood-based material-based carrier, with decorations and aminoplast-containing layers. Background technique [0002] Such laminates are used in a variety of ways, for example for floors, baseboards and ceiling panels, panels and furniture. Decorative objects may imitate, for example, other materials such as wood, ceramics, natural or artificial stone, or be considered from an artistic or practical point of view. The decoration is usually protected against abrasion by a covering of more or less transparent thermosetting plastic. It is common for the surface of such a covering to be provided with a structure which corresponds to the material imitated by the decoration and which is referred to as a synchronpore. [0003] Technological developments to date have mainly resulted in two different classes of materials for the cover layer. So-called lacquer layers are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B21/06B44C5/04B32B29/00D21H27/26D21H27/28
CPCB32B2317/125B32B2038/0076D21H27/28D21H27/26B44C3/02B32B38/164B44C5/043B32B2317/16B32B21/04B32B21/08
Inventor C·博尔曼
Owner SURFACE TECH
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