KR20090063322A - Floor tile having improved stain resistance - Google Patents

Abstract

A floor tile is provided to place embossing beneath a transparent film so as to prevent the surrounding of embossing from being stained, while giving stereoscopic effect through the embossing. A floor tile comprises a printed layer(2) formed beneath a transparent film(5), mechanical embossing(4) formed by pressing the lower surfaces of the transparent film and the printed layer, a base layer consisting of first and second base layers(1a,1b) laminated beneath the printed layer, and a dimension reinforcement layer(7) interposed between the first and the second base layer. The printed layer is manufactured by printing pearl ink or aluminum paste ink onto a soft white sheet, including plasticizer 10~30 parts by weight to base resin 100 parts by weight, in part or in whole and drying it and then printing general ink onto the dried sheet.

Description

Floor tile having improved stain resistance

The present invention relates to a floor tile which can be manufactured by a continuous or press method and has a three-dimensional effect and deep emboss is present in the lower portion of the transparent film. And it relates to a bottom tile embossed embossed at the bottom of the print layer.

Conventionally, the method of realizing the appearance reality of vinyl chloride floor tiles, which can be manufactured by a continuous or press method in which printed matter is inserted, is limited to flat expression by printed matter and surface emboss, and when the surface emboss is deep, There was a serious disadvantage of contamination.

The floor tiles expressing the appearance with conventional printed matters were subjected to gravure printing or rotary printing on the white vinyl chloride resin sheet layer, and then the printed layer was protected by transparent vinyl chloride resin, and the appearance was variously expressed by the reality of printing. Depth and three-dimensional effects have been limited since the eye has been given a sense of depth or three-dimensional effect by focusing on the optical illusion such as hologram effect.

Korean Utility Model Registration No. 230941 is a synthetic material having a texture similar to a carpet yarn in either a vinyl chloride resin sheet layer or a vinyl chloride resin interlayer layer that forms a surface layer in a floor tile composed of a surface layer, a base layer, and a back layer from above. Disclosed is a floor tile that gives the carpet an external appearance by directly mixing the fibers.

Republic of Korea Utility Model Registration No. 299622 is a floor decorative material consisting of a back layer, a base layer and a surface layer from below, wherein the surface layer is a multi-stereoscopic pattern layer, a transparent filling layer, a printing layer, a transparent layer and a surface containing a pearl pigment from below Disclosed is a flooring material comprising a treatment layer.

Japanese Utility Model Registration No. 3082410 includes a base layer made of vinyl chloride resin containing inorganic fillers, a colored layer made of vinyl chloride resin containing colorants, a pearlescent film layer of vinyl chloride resin, and a vinyl chloride resin on the surface thereof. The bottom tile which consists of the transparent film layer of this invention, and provided the nonuniform heterogeneous light transmission layer by crimping the chip of vinyl chloride resin between the pearlescent film layer and the transparent film layer of the surface is disclosed.

In Japanese Patent Laid-Open Publication No. 194-64108, after a polyvinyl chloride resin paste is immersed into a nonwoven fabric, a printed sheet is formed on the upper surface of which is transferred a pattern layer by ink, and the transparent sheet is made of transparent vinyl chloride resin on the upper layer. A vinyl chloride tile material is disclosed in which a polyvinyl chloride resin substrate is bonded to a film and a lower layer to form a laminated material, and then an embossed shape is formed by tuning a patterned layer on the upper surface of the laminated material.

Korean Utility Model Registration No. 349827 devised by the present inventors includes a printed matter stacked on top of a base layer, and has a negative mechanical emboss pattern formed simultaneously on the base layer and the printed matter by a squeeze roll. Disclosed is a vinyl chloride floor tile comprising a colored sol or transparent sol filled in an embossed pattern and having a steric effect by the printed matter, the mechanical embossed pattern and the colored sol or transparent sol.

In the case of the present invention, the mechanical embossing is applied to the surface of the printed material, and then, by filling a colored sol or transparent sol on the upper surface, the three-dimensional effect is realized. However, the process is complicated by coating the sol on the mechanical embossed pattern.

In order to simplify the process, the present inventors removed the sol coating process and laminated the base layer under the emboss. However, due to the space occupied by the emboss, bubbles were generated during plywood, resulting in a deterioration in appearance and physical properties.

Accordingly, an object of the present invention is to simplify the method for implementing the three-dimensional effect, to solve the problem of appearance and physical properties caused by the bubble generation, the emboss is present in the lower portion of the transparent film can significantly improve the surface contamination during actual use It is to provide a floor tile and a method of manufacturing the same.

The present invention, in order to achieve the above object, a print layer is formed on the lower portion of the transparent film, and the embossed mechanical emboss is formed on the transparent film and the print layer at the same time provides a floor tile.

The floor tile of the present invention has a deep embossing under the transparent layer to improve the reality of the appearance, so that the stain resistance is significantly improved in actual use.

In the present invention, the base layer is laminated under the printed layer, and the dimensional reinforcement layer may be laminated under the base layer for the purpose of dimensional reinforcement. Typically, the base material layer is a vinyl chloride resin layer, and glass fiber or nonwoven fabric is used as the dimensional reinforcement layer. Thus, when the base layer and the dimensional reinforcement layer are composed of heterogeneous materials, curling occurs, so that the base layer is made of two layers. It is preferable to construct and insert a dimensional reinforcement layer therebetween, and according to this symmetrical structure, it is possible to secure stable balance and improve dimensional stability of the product.

In the present invention, the printing layer uses a semi-rigid or soft white sheet containing 10 to 30 parts by weight of plasticizer with respect to 100 parts by weight of the base resin in consideration of printability, and the front surface or the pearl ink or aluminum paste ink for maximum three-dimensional impression It is preferable to partially print the first printing and then to dry second printing with general ink, and in order to maximize the depth, 10 to 40 parts by weight of pearl pigment is added to 100 parts by weight of the base resin when preparing a semi-hard or soft white sheet. The pearl sheet may be manufactured and printed.

In the present invention, the mechanical emboss is formed in a double to triple angle in the same pattern on the longitudinal section, thereby maximizing the three-dimensional effect. The recessed depth of the mechanical emboss is suitably 10 to 70% of the sum of the thickness of the transparent film and the printed layer.

In the bottom tile of the present invention, in order to provide balance and surface properties of the bottom, a balance sheet may be stacked below the base layer, and a surface treatment layer may be formed on the transparent film.

In addition, the present invention comprises the steps of forming a transparent film; Forming a printed layer on the lower portion of the transparent film; Simultaneously forming embossed mechanical emboss on the transparent film and the printed layer; It provides a method of manufacturing a floor tile comprising the step of plywood the substrate layer under the printing layer by a press or a continuous method.

In providing the floor tile of the present invention, mechanical embossing can be formed using embossed rolls and embossing plates. In case of using embossing roll, automated work by continuous process is possible. In case of using embossing plate, it becomes manual work by intermittent process. In addition, it is possible to automate work by continuous process when using press which can press the fabric and base layer with embossed embossing on the transparent film and lower part of printing layer continuously when plywood, and by using intermittent process when using multi-stage press. It becomes the manual form.

As described above in the present invention, it is preferable that the base layer is composed of two layers and a dimensional reinforcing layer is laminated therebetween, a balance sheet is laminated on the lower base layer, and a surface treatment layer is formed on the transparent film. Do.

According to the present invention, a three-dimensional effect is imparted to the product by embossing mechanical embossing applied to a semi-finished product composed of a transparent film and a printing layer, and the emboss is present in the lower part of the transparent film, thereby improving the problem of contamination on the embossing portion during actual use. In addition, the dimensional reinforcement layer is used inside the product when necessary, and there is an advantage that the gap opening is improved as compared with the conventional vinyl chloride floor tile.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 are cross-sectional views and plan views of the pressing roll and the emboss plate required for the three-dimensional pattern implementation. The pattern shown in the drawings is exemplary only, and any pattern may be used. In case of using embossing roll, automated work by continuous process is possible. In case of using embossing plate, it becomes manual work by intermittent process. The pressing roll and the embossing plate are formed with embossed concave and convex patterns to impart mechanical embossing to the lower portion of the printing layer. Preferably, double or triple angles are provided in the same pattern to maximize a three-dimensional effect. At this time, the depth of the main portion of the compression roll and emboss plate that can give a pattern is suitable for 10 to 70% of the thickness of the transparent film and the printed layer thickness. In this way, it is possible to maximize the three-dimensional appearance and the reality of appearance.

5 is a cross-sectional view of a fabric in which the print layer 2 is laminated on the lower portion of the transparent film 5 according to an embodiment of the present invention.

The transparent film (5) layer is processed by calendering to a certain thickness through the mixing, preheating process, after mixing the vinyl chloride resin, plasticizer, stabilizer in order to improve the durability of the product surface.

The printing layer 2 may be a semi-hard or soft white sheet (including 10 to 30 parts by weight of plasticizer based on 100 parts by weight of base resin) or a pearl sheet (10 to 30 parts by weight of plasticizer relative to 100 parts by weight of base resin) 10 to 40 parts by weight of pearl pigments), the first and full- or partial printing of pearl ink, aluminum paste ink and / or silver powder in order to maximize the three-dimensional impression and dried, and then produced by secondary printing with ordinary ink do. In the case of primary printing using pearl ink, aluminum paste ink and / or silver powder, it is advantageous to realize a three-dimensional effect by maximizing light scattering and diffuse reflection effects of light.

The transparent film layer 5 and the printed layer 2 are integrated using a thermal lamination method or a press method to produce a semifinished product fabric.

FIG. 6 is a cross-sectional view of the fabric to which the mechanical emboss 4 is applied to the fabric of FIG.

The mechanical emboss 4 is compressed by pressing a pressing roll or emboss plate (FIGS. 1 to 4) provided with a pattern of a certain shape on the lower half of the semi-finished fabric in which the transparent film 5 layer and the printing layer 2 are laminated. The embossed concave-convex pattern of the roll or emboss plate is transferred to the lower portion of the transparent film 5 and the printed layer 2. In this case, in order to maximize the steric effect, the pressing roll or the embossing plate used, as shown in FIGS. 1 to 4, is preferably used to give a double to triple angle in the same pattern.

Thus, by pressing with an embossed pressing roll or emboss plate, a fabric comprising the transparent film layer 5 and the printed layer 2 to which the embossed mechanical emboss pattern 4 is applied is formed from the bottom.

FIG. 7 is a cross-sectional view of the fabric layer laminated with the base layer 1 and the balance sheet 3 on the fabric of FIG. 6 by using a continuous or intermittent press method.

The base material layer 1 is a vinyl chloride resin layer, which is a rolled sheet of a vinyl chloride resin, a plasticizer, a stabilizer, and a calcium carbonate as a main component. It is cut to a certain size, wherein the calcium carbonate can be used up to 200 to 500 parts by weight in 100 parts by weight of vinyl chloride resin.

The balance sheet (3) is a vinyl chloride resin sheet, in which a raw material containing vinyl chloride resin, a plasticizer, a stabilizer, and calcium carbonate as a main component is wound through a calender at a predetermined thickness through a half-barrier, mixing, and preheating process. will be.

8 is a cross-sectional view of a fabric in which the dimension reinforcing layer 7 is inserted into the base layer 1 of FIG. 7 according to another embodiment of the present invention.

The dimension reinforcing layer 7 is a layer reinforced with glass fiber or nonwoven fabric, and is laminated between the base layers 1 in order to prevent gap opening occurring during use of the product and to realize stable dimensional safety of the floor tile.

In this embodiment, in order to prevent the curling phenomenon that occurs when the base material layer 1 and the dimensional reinforcement layer 7 are composed of heterogeneous materials, the base material layer 1 is formed of the first base material layer 1a and the second base material layer ( It consists of the double structure of 1b), and inserts the dimension reinforcement layer 7 between them, and comprises a symmetrical structure.

9 is a cross-sectional view of the floor tile completed by performing a surface treatment on the top of the fabric of FIG.

The surface treatment layer 6 is formed by coating a paint containing polyurethane as a main component for improving the stain resistance of the product.

10 is a photograph of a floor tile according to an embodiment of the present invention, it can be seen that the three-dimensional effect is given to the product by the embossed mechanical embossing.

Example 1

Transparent film 5 for imparting durability is 100 parts by weight of vinyl chloride resin having a degree of polymerization of 1,000 to 1,300, 35 parts by weight of dioctylphthalate, 3 parts by weight of barium-zinc compound, 3 parts by weight of epoxy resin by kneading with a half-barrier mixer. Then, the heat-softened compound was rolled with a calendar at 170 ° C. to prepare a transparent film 5 which is a 0.5 mm thick sheet.

100 parts by weight of a vinyl chloride resin having a polymerization degree of 800 to 1,300, 18 parts by weight of dioctylphthalate, 3 parts by weight of barium-zinc compound, 3 parts by weight of epoxy resin, and 20 parts by weight of titanium dioxide as a pigment by kneading with a semi-barrier mixer The compound is rolled with a calender at 170 ° C. to produce a sheet for white prints of 0.08 mm, and the front sheet is printed with primary pearl printing or silver powder on the white sheet, and a gravure printing machine with a desired pattern such as marble or wood is used on the top of the sheet. The printing layer 2 was manufactured by carrying out.

While the transparent film 5 and the printed layer 2 are integrated by a thermal lamination or press method, the recess depth is crimped with an embo roll or embossed plate having a depth of 10 to 70% of the sum of the thickness of the transparent film 5 and the printed layer 2. To produce a semi-finished product given the embossed mechanical emboss (4).

100 parts by weight of a vinyl chloride resin having a polymerization degree of 800 to 1,300, 40 parts by weight of dioctylphthalate, 3 parts by weight of barium-zinc compound, 3 parts by weight of epoxy resin, and 300 parts by weight of calcium carbonate by kneading with a half-barrier mixer and heat-softened compound The polyvinyl chloride resin substrate layer (1), which is a sheet having a thickness of 1 mm, was prepared by rolling a calendar at 170 ° C.

100 parts by weight of a vinyl chloride resin having a polymerization degree of 800 to 1,300, 30 parts by weight of dioctylphthalate, 3 parts by weight of barium-zinc compound, 3 parts by weight of epoxy resin, and 60 parts by weight of calcium carbonate by kneading with a half-barrier and heating the softened compound. The polyvinyl chloride resin balance sheet 3 having a thickness of 0.5 mm was prepared by rolling with a calendar at 170 ° C.

The vinyl chloride resin base material layer (1) and the vinyl chloride resin balance sheet (3) were integrated by using a thermal lamination method or a press method on a fabric in which the transparent film 5 and the printing layer 2 were integrated. The thickness was adjusted by the thickness of the base material layer 1.

At this time, the conditions of the multi-stage press are performed by hot pressure (140 ° C. × 30 minutes) ⇒ cold pressure (30 ° C. × 30 minutes), and the pressure is 18 kg / cm 2.

Finally, the surface coating layer 6 was formed by surface coating, and then cut to an appropriate size to complete the vinyl chloride resin floor tile according to the present invention.

Example 2

Except for inserting the dimensional reinforcing layer (7) in the base material layer (1) was prepared in the same manner as in Example 1, the dimensional reinforcing layer (7) is a glass fiber or non-woven fabric impregnated with polyurethane for dimensional stabilization of the finished product Used.

1 is a cross-sectional view of a pressing roll provided with a pattern of a certain type to impart mechanical embossing according to an embodiment of the present invention.

2 is a plan view of a pressing roll provided with a pattern of a certain type to impart a mechanical embossing in accordance with an embodiment of the present invention.

3 is a cross-sectional view of an embossed plate provided with a pattern of a certain type to impart a mechanical embossing according to another embodiment of the present invention.

4 is a plan view of a patterned embossed plate provided with a mechanical embossing according to another embodiment of the present invention.

5 is a cross-sectional view of a fabric in which a printing layer is fixed to a transparent film in one embodiment of the present invention.

FIG. 6 is a cross-sectional view of the fabric to which the mechanical emboss is applied to the fabric of FIG.

7 is a cross-sectional view of a fabric in which a base material layer and a balance sheet are fixed to the fabric of FIG. 6 according to one embodiment of the present invention.

8 is a cross-sectional view of a fabric in which a dimension reinforcing layer is inserted into the base layer of FIG. 7 according to another embodiment of the present invention.

9 is a cross-sectional view of the floor tile completed by performing a surface treatment on the top of the fabric of FIG.

10 is a photograph of a floor tile according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

1: substrate layer

2: printing layer

3: balance sheet

4: mechanical emboss

5: transparent film

6: surface treatment layer

7: Dimension reinforcement layer

Claims (9)

A print layer is formed under the transparent film, and embossed mechanical emboss is formed on the transparent film and the print layer at the same time. The floor tile according to claim 1, wherein the base layer is laminated under the printed layer, and the base layer is composed of two layers, and a dimension reinforcing layer is inserted therebetween. The general ink according to claim 1, wherein the printing layer is first or partially printed with pearl ink or aluminum paste ink on a semi-rigid or soft white sheet containing 10 to 30 parts by weight of plasticizer with respect to 100 parts by weight of the base resin and dried. Floor tiles, characterized in that the second printing. The bottom tile according to claim 1, wherein the printing layer is printed after preparing a pearl sheet by adding 10 to 40 parts by weight of a pearl pigment to 100 parts by weight of the base resin when preparing a semi-rigid or soft white sheet. The floor tile according to claim 1, wherein the mechanical emboss is formed in a double to triple angle in the same pattern on the longitudinal section, and the recess depth of the mechanical emboss is 10 to 70% of the sum of the thickness of the transparent film and the printed layer. The floor tile of claim 2, wherein a balance sheet is stacked below the base layer, and a surface treatment layer is formed on the transparent film. Forming a printed layer on the lower portion of the transparent film; Simultaneously forming embossed mechanical emboss on the transparent film and the printed layer; A method of manufacturing a floor tile comprising the step of plywood the substrate layer under the printing layer by a press or a continuous method. The method of manufacturing a floor tile according to claim 7, wherein the mechanical emboss is formed using an embossing roll or an embossing plate. The floor tile according to claim 7, wherein the base layer is composed of two layers, the dimensional reinforcing layer is laminated therebetween, a balance sheet is laminated below the base layer, and a surface treatment layer is formed on the transparent film. Manufacturing method.

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