DECORATION MATERIAL

Abstract

The present application can provide a decoration material in which a printed layer having various designs and colors to meet demands and needs is formed on a basic material layer to have clearness and high adhesion. The present application can also provide a transfer film for manufacturing the decoration material and a method for manufacturing a decoration material using the transfer film.

Claims

1. A decorative material, comprising: a base material layer; and a decorative layer formed on the base material layer, wherein an adhesive strength of the decorative layer to the base material layer is 1.6 kgf/2.0 cm or more at a peeling angle of 180 degrees and a peeling speed of 200 mm/min.

2. The decorative material of claim 1, wherein a generation amount per hour of TVOC is 5 mg/m.sup.3 or less, and a generation amount per hour of formaldehyde is 0.1 mg/m.sup.3 or less.

3. The decorative material of claim 1, wherein the decorative layer comprises a printed layer and an adherend-dependent peel force variable layer.

4. The decorative material of claim 3, wherein the printed layer or the adherend-dependent peel force variable layer comprises polyurethane.

5. The decorative material of claim 3, wherein the adherend-dependent peel force variable layer comprises a silicone resin or a fluorine compound; and a resin emulsion, wherein the resin emulsion is included in the adherend-dependent peel force variable layer in a ratio of 70 to 170 parts by weight, relative to 100 parts by weight of the silicone resin or the fluorine compound.

6. The decorative material of claim 5, wherein the adherend-dependent peel force variable layer further comprises 30 to 130 parts by weight of polyvinyl chloride, relative to 100 parts by weight of the silicone resin or the fluorine compound.

7. The decorative material of claim 5, wherein the adherend-dependent peel force variable layer further comprises 1 to 20 parts by weight of a metal salt, relative to 100 parts by weight of the resin emulsion.

8. The decorative material of claim 5, wherein the adherend-dependent peel force variable layer further comprises 10 to 100 parts by weight of an inorganic filler, relative to 100 parts by weight of the resin emulsion.

9. The decorative material of claim 1, further comprising a transparent layer formed on the decorative layer and including polyvinyl chloride.

10. The decorative material of claim 1, further comprising a white layer formed between the decorative layer and the base material layer and including polyvinyl chloride.

11. A decorative material comprising: a white layer; a printed layer formed on one surface of the white layer; an ink receiving layer formed on the printed layer; and a transparent layer formed on the ink receiving layer.

12. The decorative material of claim 11, further comprising a primer layer between the ink receiving layer and the transparent layer.

13. The decorative material of claim 11, further comprising a coating layer on the transparent layer.

14. The decorative material of claim 12, wherein the ink receiving layer comprises a resin emulsion, and the primer layer comprises a silicone or fluorine compound and polyvinyl chloride.

15. The decorative material of claim 11, which exhibits a peel strength of 1.6 kgf/2.0 cm or more at a peel angle of 180 degrees and a peel rate of 200 mm/min.

16. The decorative material of claim 1, wherein an ink dot size on a surface of the decorative material is 10 to 100 nm.

17. The decorative material of claim 11, further comprising a base material layer formed on the other surface of the white layer.

18. A transfer film comprising: a base material film; and an adherend-dependent peel force variable layer formed on the base material film, wherein a peel strength of the adherend-dependent peel force variable layer to the base material film is 1,000 gf/inch or less, and an adhesive strength of the adherend-dependent peel force variable layer to a polyvinyl chloride layer is 2.0 kgf/2.0 cm or more at a peeling angle of 180 degrees and a peeling speed of 6 inch/min.

19. The transfer film of claim 18, further comprising a printed layer on the adherend-dependent peel force variable layer, wherein the printed layer or the adherend-dependent peel force variable layer comprises polyurethane.

20. The transfer film of claim 18, wherein the adherend-dependent peel force variable layer comprises a silicone resin or a fluorine compound; and a resin emulsion, wherein the resin emulsion is included in the adherend-dependent peel force variable layer in a ratio of 70 to 170 parts by weight, relative to 100 parts by weight of the silicone resin or the fluorine compound.

21. The transfer film of claim 20, wherein the adherend-dependent peel force variable layer further comprises 30 to 130 parts by weight of polyvinyl chloride, relative to 100 parts by weight of the silicone resin or the fluorine compound.

22. The transfer film of claim 20, wherein the adherend-dependent peel force variable layer further comprises 1 to 20 parts by weight of a metal salt, relative to 100 parts by weight of the resin emulsion.

23. The transfer film of claim 20, wherein the adherend-dependent peel force variable layer further comprises 10 to 100 parts by weight of an inorganic filler, relative to 100 parts by weight of the resin emulsion.

24. A transfer film comprising: a base material film; an ink receiving layer formed on the base material film; and a printed layer formed on the ink receiving layer.

25. The transfer film of claim 24, further comprising a primer layer between the base material film and the ink receiving layer.

26. The transfer film of claim 25, wherein the ink receiving layer comprises a resin emulsion, and the primer layer comprises a silicone or fluorine compound and polyvinyl chloride.

27. A manufacturing method of a decorative material, comprising: contacting the adherend-dependent peel force variable layer of the transfer film of claim 18 with a base material layer; and removing a base material film from the transfer film.

28. A manufacturing method of a decorative material, comprising: transferring the printed layer of the transfer film of claim 24 onto a white layer to be attached; removing a base material film from the transfer film; and forming a transparent layer on an ink receiving layer from which the base material film is removed.

Description

DESCRIPTION OF DRAWINGS

[0162] FIGS. 1 to 3 are schematic diagrams showing a structure of an exemplary decorative material.

[0163] FIG. 4 is a view showing the results of comparing ink dot sizes of an example and a comparative example.

[0164] FIG. 5 is a view showing results of comparing CIE color properties of decorative materials.

[0165] FIG. 6 is a view showing a process of measuring peel strength.

BEST MODE FOR IMPLEMENTATION OF THE INVENTION

[0166] Although the present application is specifically described through the following examples, the scope of the present application is not limited by the following examples.

Example 1

[0167] Manufacture of Transfer Film

[0168] Two kinds of coating solutions were prepared to form an adherend-dependent peel force variable layer having a two-layer structure. Evonik's Protect 5000 product and PVC as a silicone-based compound were dissolved in water as a solvent in a weight ratio of about 5:4 (silicone-based compound: PVC) to prepare a first coating solution. At this time, PVC having a weight average molecular weight of about 26,000 was used.

[0169] Meanwhile, a cationic acrylic resin emulsion, MgCl.sub.2 as a metal salt, silica (average particle diameter (D50 particle diameter): about 1.8 μm), and other components (thickener, leveling agent, and antifoaming agent) were mixed with water as a solvent in a weight ratio of (resin emulsion:metal salt:silica:other components) of 6:0.5:3:0.5 to prepare a second coating solution.

[0170] The cationic acrylic resin emulsion was formed by polymerizing methyl methacrylate, butyl acrylate, and hydroxyethyl methacrylate as monomers in water in a weight ratio of about 1:1:1, wherein acetic acid used as a surfactant was used in about 10 parts by weight, relative to 100 parts by weight of the total monomers.

[0171] First, the first coating solution was coated on one surface of a PET film, and maintained at a temperature of 80° C. for 15 seconds to form a first layer (primer layer) having a thickness of about 1 μm. Then, the second coating solution was coated on the first layer, and maintained at a temperature of 130° C. for about 1 minute to form a second layer (ink receiving layer) having a thickness of about 2 μm, so that an adherend-dependent peel force variable layer having a two-layer structure was formed.

[0172] The adherend-dependent peel force variable layer was formed so that about 30% by weight of the cationic acrylic resin emulsion were included, and a weight ratio of the cationic acrylic resin emulsion and the silicone compound was about 6:5 (resin emulsion: silicone compound).

[0173] Then, a printed layer was formed on the adherend-dependent peel force variable layer. The printed layer was formed by a digital printing method. At this time, ink obtained by mixing water-based ink LK series products obtained from Ink Tech Co., Ltd. and polyurethane in a weight ratio of about 6.6:3.5 (polyurethane: ink product) was used as ink. At this time, the polyurethane prepared using a polycarbonate polyol and having a glass transition temperature of about −25° C. was used.

[0174] In the same manner as described above, a transfer film in which a base material film, an adherend-dependent peel force variable layer, and a printed layer were sequentially formed was manufactured.

[0175] A proportion of the polyurethane in the adherend-dependent peel force variable layer of the transfer film was about 22% by weight, and a weight ratio of the resin emulsion and the polyurethane was about 6:6.6 (resin emulsion: polyurethane).

[0176] Manufacture of Decorative Material

[0177] A decorative material was manufactured using the transfer film. In the manufacture of the decorative material, a base material layer having a typical PVC white layer formed on one surface of a PVC board usually used as a base material layer for flooring materials, and a typical balance layer formed on the other surface was used as the base material layer.

[0178] The adherend-dependent peel force variable layer of the transfer film was brought into contact with the white layer of the base material layer. Then, after the base material film was peeled off, a PVC transparent layer and a UV coating layer were formed on the surface where the base material film was peeled off to manufacture the decorative material.

Example 2

[0179] A decorative material was manufactured in the same manner as in Example 1, except that a coating solution including no PVC was used as a first coating solution.

Example 3

[0180] A decorative material was manufactured in the same manner as in Example 1, except that ink not mixed with polyurethane was used as ink.

Comparative Example 1

[0181] A decorative material was manufactured in the same manner as in Example 1, except that ink not mixed with polyurethane was used as ink, and a coating solution including no PVC was used as a first coating solution.

Test Example 1

Peel Strength Evaluation

[0182] A peel strength of the decorative layer to the base material layer in the decorative 10 material was evaluated by referring to KS M 3802, decoration laboratory test standard. First, a specimen was manufactured by cutting the decorative material into a dogbone shape having a width of 20 mm, a length of 250 mm, and a thickness of about 5 mm. Then, the specimen was kept in hot water at about 80° C. for about 1 hour. Then, both ends of the specimen were fixed in a tensile tester, and the peel strength was measured at a peel rate of about 200 mm/min and a peel angle of 180 degrees. FIG. 6 is a view showing a process of measuring the peel strength.

[0183] A small tensile tester of AMATEK LLOYD INSTRUMENTS was used as the tensile tester used in the above process, and a 5 kN load cell was used as a load cell.

[0184] When the peel strength was measured through the above method, the strength at the time when interlayer peeling occurred in an arbitrary layer or when a mono-layer was torn and damaged was taken as the peel strength.

Test Example 2

Adhesive Strength Evaluation

[0185] The adhesive strength of an adherend-dependent peel force variable layer (=first layer+second layer) to a PET film as a base material film in a transfer film was evaluated in the same manner as in Test Example 1. However, in this case, the process of maintaining the specimen in hot water at about 80° C. for about 1 hour was not performed.

[0186] First, a specimen was manufactured by cutting a transfer film into a dogbone shape having a width of 20 mm, a length of 250 mm, and a thickness of about 5 mm. Then, both ends of the specimen were fixed in a tensile tester, and the adhesive strength was measured at a peel rate of about 200 mm/min and a peel angle of 180 degrees.

[0187] A small tensile tester of AMATEK LLOYD INSTRUMENTS was used as the tensile tester used in the above process, and a 5 kN load cell was used as a load cell.

[0188] When the adhesive strength was measured through the above method, the strength at the time when interlayer peeling occurred in an arbitrary layer or when a mono-layer was torn and damaged was taken as the adhesive strength.

Test Example 3

Ink Dot Size Measurement

[0189] The ink dot size of a printed layer was confirmed as follows. After a shape (image) seen on a monitor was captured by observing a printed layer at a magnification of 230× using Dino equipment (microscope) and software (Dinocapture), a measurement ratio was input, an actual dot size was measured, and the size of the dot was obtained by measuring a diameter in a spherical shape.

[0190] FIG. 4 is an image of the printed layer confirmed in this way, FIGS. 4A to 4C are images of Comparative Example 1, and FIGS. 4D to 4F are images of Example 1.

Test Example 4

CIE Color Coordinate Measurement

[0191] The CIE color coordinates of each case of Example 1 and Comparative Example 1 were measured.

[0192] At this time, the color coordinates were evaluated using a Konica Minolta's CN-5 instrument. In addition, when forming the printed layer, red, blue, and yellow colors were printed and color coordinates and color difference values were evaluated.

[0193] FIG. 5 is a view showing such results, FIG. 5B is results for an example, and 5A is results for the comparative example.

[0194] In the case of applying a method of Example 1, for a red color difference value, a blue color difference value, and a yellow color difference value of the decorative layer were measured in an SCI mode using a CM-5 chromameter, a* of red is about 13.8, b* of yellow was about 18.2, and b* of blue was about −13.4.

[0195] The results of Test Examples 1 to 3 were summarized and described in Table 1 below.

TABLE-US-00001 TABLE 1 Peel strength Adhesive strength Ink dot size Example 1 About 4.0 Kgf/ About 900 gf/inch About 20 to 30 μm 2.0 cm or more Example 2 About 3.0 Kgf/ About 900 gf/inch About 20 to 30 μm 2.0 cm or more Example 3 About 2.0 Kgf/ About 900 gf/inch About 35 μm 2.0 cm or more Comparative About 1.0 Kgf/ About 900 gf/inch About 40 μm Example 1 2.0 cm or less

[0196] In Table 1, the peel strength is a peel strength of the decorative material to the base material layer, and the adhesive strength is an adhesive strength of the adherend-dependent peel force variable layer film in the transfer film to the base material film.

[0197] From the results of Table 1, in the present application, it can be confirmed that the adhesive strength varies depending on the adherend, the adherend-dependent peel force variable layer suitable for a transfer process is effectively formed with such a change in adhesive strength, and printability of the variable layer is also excellent.

[0198] In addition, as a result of confirmation according to the KS M 0000-1 standard, an amount of generated TVOC was 0.08 mg/m.sup.3 or less per hour, and an amount of generated formaldehyde was 0.01 mg/m.sup.3 or less per hour for all decorative materials of the examples and comparative example.