FLOORING TILE PRODUCIBLE BY CONTINUOUS PROCESS AND HAVING THREE-DIMENSIONAL EFFECT, AND PROCESS FOR PREPARING THE SAME

• US 20070166516A1
• Filed: 10/16/2006
• Published: 07/19/2007
• Est. Priority Date: 01/18/2006
• Status: Abandoned Application

• Current Assignee: LG Chem Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Park, Chang-Hwan, Kim, Chang-Il, Kim, Gyu-Yull
• Application Number:
  US11/549,736
• Publication Number:
  US 20070166516A1
• Time in Patent Office: Days
• US Class Current: 428/172
• CPC Class Codes: B32B 2250/246 All polymers belonging to those covered by groups B32B27/32 and B32B27/30
• CPC Class Codes: B32B 2255/10 on synthetic resin layer or on natural or synthetic rubber layer
• CPC Class Codes: B32B 2255/26 Polymeric coating
• CPC Class Codes: B32B 2262/101 Glass fibres
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2307/734 Dimensional stability
• CPC Class Codes: B32B 2307/75 Printability
• CPC Class Codes: B32B 2327/06 PVC, i.e. polyvinylchloride
• CPC Class Codes: B32B 2419/04 Tiles for floors or walls
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/22 using plasticisers
• CPC Class Codes: B32B 27/304 comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
• CPC Class Codes: B32B 3/30 characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs apertured layer B32B3/266; layer with cavities or internal voids B32B3/26
• CPC Class Codes: B32B 38/06 Embossing
• CPC Class Codes: B32B 38/145 Printing
• CPC Class Codes: B32B 5/16 characterised by features of a layer formed of particles, e.g. chips, powder or granules layer formed of natural mineral particles B32B19/00; layer being formed of wood fibres, chips or particles B32B21/02
• CPC Class Codes: B44C 5/04 Ornamental plaques, e.g. decorative panels, decorative veneers
• CPC Class Codes: Y10T 428/24612 Composite web or sheet

Abstract

Disclosed are a flooring time including a substrate layer, printed layer, and transparent film, which are laminated from the bottom, and concave patterns mechanically embossed on the substrate layer and printed layer at the same time, and a process for preparing the flooring tile. The laminating and embossing operation of the respective layers are successively performed by use of a series of successively arranged rolls.

Claims

1. A flooring tile comprising a substrate layer, a printed layer, and a transparent layer laminated in this sequence from the bottom,

wherein mechanically embossed concave patterns are formed on both the substrate layer and the printed layer at the same time and the transparent layer is filled in the mechanically embossed concave patterns,

whereby the flooring tile is provided with a three-dimensional pattern effect.

2. The flooring tile according to claim 1, wherein the transparent layer is a transparent film.

3. The flooring tile according to claim 1, wherein the mechanically embossed patterns are continuously connected to one another in a direction.

4. The flooring tile according to claim 1, wherein the mechanically embossed patterns have a depth of 0.05˜

0.9 mm and each pattern includes double and triple angled portions in a longitudinal cross section.

5. The flooring tile according to claim 2, wherein the transparent film has an embossed upper surface.

6. The flooring tile according to claim 2, wherein the transparent film has a lower surface formed with embo-pins.

7. The flooring tile according to claim 1, wherein a balance sheet is laminated at a lower surface of the substrate layer, and a surface finishing layer is laminated at an upper surface of the transparent layer.

8. The flooring tile according to claim 1, wherein the printed layer is formed by performing a primary printing using pearl ink or silver powder on a part of or throughout a semi-hard white sheet containing 100 parts by weight of a base resin and 10˜

50 parts by weight of a plasticizer, and performing a secondary printing using conventional inks on the primarily printed sheet.

9. A process for preparing a flooring tile comprising a substrate layer, a printed layer, and a transparent film laminated in this sequence from the bottom, with concave patterns mechanically embossed on both the substrate layer and the printed layer at the same time,

wherein laminating and embossing of each layer are successively performed by use of a series of successively arranged rolls.

10. The process according to claim 9, comprising:

producing the substrate layer, a white printing sheet, and the transparent film;

laminating the white printing sheet on the substrate layer by use of a first laminating roll;

performing a transcription printing on the white printing sheet by use of a transcription printing roll to form the printed layer;

forming mechanically embossed patterns on the substrate layer and the printed layer by use of a mechanical embossing roll; and

laminating the transparent film on the printed layer by use of a second laminating roll.

11. The process according to claim 9, comprising:

producing the substrate layer, the printed layer, and the transparent film;

laminating the printed layer on the substrate layer while forming mechanically embossed patterns on the printed layer and the substrate layer by use of a mechanical embossing roll; and

laminating the transparent film on the printed layer by use of a second laminating roll.

12. The process according to claim 10, wherein the mechanical embossing roll has embossed convex patterns, which are continuously connected to one another in an advancing direction of the tile.

13. The process according to claim 11, wherein the mechanical embossing roll has embossed convex patterns, which are continuously connected to one another in an advancing direction of the tile.

14. The process according to claim 10, further comprising:

forming an embossed surface portion at an upper surface of the transparent film by use of a surface embossing roll, and subsequently, forming a surface finishing layer on the embossed surface portion; and

laminating a balance sheet at a lower surface of the substrate layer.

15. The process according to claim 11, further comprising:

forming an embossed surface portion at an upper surface of the transparent film by use of a surface embossing roll, and subsequently, forming a surface finishing layer on the embossed surface portion; and

laminating a balance sheet at a lower surface of the substrate layer.