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Digital binder and powder print

A technology of digital printing and liquid binder, applied in printing, printing process, post-processing of printing, etc., can solve the problems of time-consuming, opaque, low productivity of 3D printing machine, etc., to avoid positioning and low cost. , cost-saving effect

Active Publication Date: 2015-10-28
CERALOC INNOVATION AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: they are not very transparent and the decorative pattern is covered with a layer of gray which interferes with the printed pattern
3D printing machines have very low productivity and the build of even small objects can take hours
[0106] Known methods do not provide any solution to the major problems associated with the bonding between powder and liquid binders applied on surfaces

Method used

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  • Digital binder and powder print
  • Digital binder and powder print
  • Digital binder and powder print

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0327] Example 1-Raw ink containing water and glycol

[0328] Kyocera piezoelectric print heads designed for inks with a viscosity of 5-6 cps form a raw ink formulation. Mix 60.8% deionized water with 38.0% polyethylene glycol PEG400, 1.0% Surfynol wetting agent, and 0.2% Actidice MBS for bacteria and fungus control.

example 2

[0329] Example 2-Ink based on dry fiber

[0330] Dry ink powder is prepared by mixing 20% ​​by weight of spray-dried melamine formaldehyde resin particles, 20% dark brown pigment and 60% pine wood fiber (average length is about 0.2mm and thickness is about 0.05mm) Got. The mixture is applied as a 1 mm thick layer on the steel belt by means of a spreading device. Thereafter the powder mixture is heated and moisture is applied by steam from deionized water. The mixture is dried by hot air, so that a hard and stable powder-based surface layer is obtained using a semi-cured melamine binder. The dry layer is removed from the belt by scraping and the dry wood particles coated with the pigment and melamine resin are ground and sieved into dry ink colorants having a size similar to that of individual wood fibers. A dry ink containing a colorant is obtained with a wood fiber body and a surface covered by a pigment bonded to the fiber by a semi-cured melamine resin.

[0331] Example 3-Di...

Embodiment

[0334] 1. A method of forming a digital print (P) on a surface (2), wherein the method comprises the following steps:

[0335] · Apply the colorant (7) to the surface (2);

[0336] Use an adhesive (11) to bond a part of the colorant to the surface (2); and

[0337] • Remove the unbound colorant (7) from the surface (2), so that the combined colorant (7) forms a digital print (P).

[0338] 2. The method as described in embodiment 1, wherein the colorant (7) comprises a pigment (12) mixed with the binder (11).

[0339] 3. The method as described in embodiment 1 or 2, wherein the binder (11) contains a thermosetting resin.

[0340] 4. The method according to any one of the preceding embodiments, wherein the binder (11) comprises a thermoplastic resin.

[0341] 5. The method according to any one of the preceding embodiments, wherein the binder (11) is powder.

[0342] 6. The method according to any one of the preceding embodiments, wherein the surface (2) is a paper layer or foil.

[0343] 7. T...

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Abstract

The disclosure relates to a method and equipment to form a digital print by displacing a panel under a digital drop application head (30') for applying a liquid binder (11) on a surface (2) of the panel, applying colourants (7) on the surface, bonding a part of the colourants to the surface with the liquid binder, removing non-bonded colourants and permanently bond the colourants to the surface by applying heat and pressure.

Description

Technical field [0001] The present invention generally relates to the field of digitally formed decorative surfaces for building panels such as floors and wall panels. The present invention relates to a method and apparatus for applying and combining powder-based colorants to form digital prints on such surfaces. [0002] Application field [0003] The embodiments of the present invention are particularly suitable for application in floors that can be formed from floor panels that include a core or body, a decorative layer and a preferably transparent wear-resistant structural layer located above the decorative layer. Preferred embodiments are traditional laminate flooring, powder-based flooring, wood flooring, plastic-based LVT flooring and tiles. Therefore, the following description of the technology, the problems of the known technology, and the purpose and characteristics of the present invention will be used as a non-limiting example mainly for this application field and espe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M5/00
CPCB41M3/006B41M7/00B41M7/02B44C3/025B44C5/04B41J3/407B41J2/2114B41J2/0057B41J11/0024C09D11/322C09D11/38G03G15/2021G03G15/2096G03G15/2064
Inventor D·佩尔万T·佩尔万
Owner CERALOC INNOVATION AB
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