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Method of producing a building panel using digital printing

A technology of architectural paneling and digital printing, applied in the post-processing of printing, copying/marking methods, printing, etc., which can solve the problems of low quality, difficulty, etc., and achieve the effect of avoiding duplication

Active Publication Date: 2015-08-05
VÄLINGE INNOVATION AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Printing with water-based inks on thermoplastic surfaces has proven difficult
Droplets of water-based inks do not stay, but tend to flow on thermoplastic surfaces, resulting in low-quality prints

Method used

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  • Method of producing a building panel using digital printing
  • Method of producing a building panel using digital printing
  • Method of producing a building panel using digital printing

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0155] White PVC foils for LVT were treated with a primer comprising 30 g / 100 ml of NaCl dissolved in deionized water, corresponding to 84% of the saturation point of NaCl in water. The foil is allowed to dry before further processing. The contact angle of the primer on the PVC foil was measured to be about 90°.

[0156] The primed foils were printed with water-based inks by means of a digital printing press. The print was dried at 60°C for 10 minutes. The printed foil was bonded to the PVC transparent protective foil for LVT in a hot / cold press process at 185° C. and a pressure of about 6 bar for 70 seconds, followed by cooling to 25° C. at a pressure of about 5 bar. The bond between the printed PVC foil and the protective foil is good.

[0157] Due to the difference in surface tension between the primer and the LVT foil, the primer cannot be applied uniformly on the surface of the foil. The printed image was not evenly fixed due to poor application of the primer.

example 2

[0159] White PVC foils for LVT were treated with a primer comprising 30 g / 100 ml of NaCl dissolved in deionized water, corresponding to 84% of the saturation point of NaCl in water. 2.0 wt% BYK345 was added to the primer solution as a wetting agent. It is measured that the contact angle of the primer on the PVC foil is less than 40°. The foil is allowed to dry before further processing.

[0160] The primed foils were printed with water-based inks by means of a digital printing press. The print was dried at 60°C for 10 minutes. The printed foil was bonded to the PVC transparent protective foil for LVT in a hot / cold press process at 185° C. and a pressure of about 6 bar for 70 seconds, followed by cooling to 25° C. at a pressure of about 5 bar. The bond between the printed PVC foil and the protective foil is good.

[0161] The primer is evenly applied on the surface of the LVT foil. The printed image was not uniformly fixed due to insufficient NaCl concentration in the prim...

example 3

[0163] White PVC foils for LVT were treated with a primer comprising 35 g / 100 ml of NaCl, corresponding to 97% of the saturation point of NaCl in water, dissolved in deionized water. 2.0 wt% BYK345 was added to the primer solution as a wetting agent. It is measured that the contact angle of the primer on the PVC foil is less than 40°. The foil is allowed to dry before further processing.

[0164] The primed foils were printed with water-based inks by means of a digital printing press. The print was dried at 60°C for 10 minutes. The printed foil was bonded to the PVC transparent protective foil for LVT in a hot / cold press process at 185° C. and a pressure of about 6 bar for 70 seconds, followed by cooling to 25° C. at a pressure of about 5 bar. The bond between the printed PVC foil and the protective foil is good.

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Abstract

The present invention relates to a method of producing a building panel (1)such as a floor panel, comprising providing a carrier (3) comprising a thermoplastic material,applying a primer comprising at least one salt, preferably a metal salt,on a first surface of the carrier (3),printing by means of digital printing a first print (10) on said first surface of the carrier (3) with an aqueous pigment ink composition, and applying a protective layer (4) on the carrier (3) and applying the carrier (3) on a core (2) comprising a thermoplastic material, and pressing by applying heat and pressure the protective layer (4), the carrier (3) and the core (2) together to form a building panel (1).The present invention also relates to a method for forming a decorative substrate.

Description

technical field [0001] The invention relates to a method of manufacturing building panels comprising a core and a printed carrier forming a decorative layer, said printed carrier consisting of a thermoplastic material. The invention also relates to a method of forming a decorative substrate. Background technique [0002] In recent years, so-called luxury vinyl tiles and floors (LVT) have enjoyed increasing success. These types of floor panels generally comprise a thermoplastic core, a thermoplastic decorative layer arranged on the core, a protective layer on the decorative layer and a coating applied on the protective layer. The thermoplastic material is usually PVC. The decorative layer is printed with patterns resembling natural stone, wood, ceramics and the like. The pattern is usually printed by rotogravure printing or direct printing. However, rotogravure or direct printing does not provide the desired flexibility in changing the design of the pattern and adapting t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M1/30E04F15/10
CPCB41M5/0047E04F15/107B41M7/00B41M5/0017B41M5/0064B44C5/04B41M5/0041B41M7/0027
Inventor N·哈坎松J·雅各布松M·吕贝格R·里廷格G·齐格勒M·博格林
Owner VÄLINGE INNOVATION AB
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