JPH1160358A - Ceramic tile having various sharp pattern - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceramic tile having various, sharp, precise and accurate colors and patterns with durability at a low cost by a simple and convenient method. SOLUTION: A lower coating layer 2 is formed by applying an epoxy resin in such a manner that the surface of the layer 2 is made flat on a ceramic tile base 1 which is first sintered. Then, a copolymer of vinyl chloride and vinyl acetate added with a small amt. of unsatd. dicarboxylic acid is dissolved in a usual org. solvent and the obtd. liquid is applied on the layer 2 to form an adhesive layer 3. Then, a plastic film layer 6 usually used for heat transfer process is applied on the adhesive layer 3 in such a manner that a printed ink layer 5 formed by gravure printing is present under the plastic film layer 6, and that an adhesive layer 4 having the same properties as those of the adhesive layer 3 for the lower coating layer 2 is present for the printed ink layer 5 under the printed ink layer 5. These layers are adhered by a transfer method by heating.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to ceramic tiles having multiple fine and diverse patterns on the surface, and more particularly to a ceramic tile having a primary sintered material that does not require resintering or the like. The present invention relates to a ceramic tile having a fine-pattern printed layer.

[0002]

2. Description of the Related Art In general, ceramic tiles have a single color surface or have various patterns on the surface, and a ceramic is applied on a primary-sintered ceramic base. It is obtained by resintering the ceramic base, drawing or coloring letters and patterns on it with mineral pigment printing ink, and then resintering the so obtained at high temperature. Can be

[0003] Therefore, in the conventional method, the method is complicated because the ceramic base has to be sintered twice or three times, thereby increasing its manufacturing cost and also its printed or drawn characters. The pattern or pattern is not sharp because of the unevenness of the ceramic base surface, and cannot express fine and clear characters and figures.

[0004] In other words, the surface of the initially sintered base ceramic is so rough that it is difficult to fill and print by transfer methods such as silk screen printing and fine and accurate gravure printing.

[0005] More specifically, in the case of ceramic tiles, the inks for forming the printed surfaces, such as letters and graphics, may be scorched or burned to maintain the original printed pattern or color. It must not volatilize at the high temperatures of sintering ceramics several times and must use mineral pigments, and therefore cannot present various clear and sharp patterns and characters.

Therefore, it has not been possible to produce ceramic tiles having various colors and figures in detail and sharply.

[0007]

SUMMARY OF THE INVENTION Accordingly, one of the objects of the present invention is to solve the limitations and problems of the above-mentioned conventional ceramic tiles for forming various patterns, greatly reduce the production cost, and reduce the production cost of the product. The object of the present invention is to provide ceramic tiles having detailed and precise various colors and patterns, which are characterized by simplifying the process, improving product productivity and quality, and producing various patterns of products.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings.

An undercoating layer 2 is first formed on a ceramic tile base 1 which has been first sintered by impregnating the surface of this layer 2 with an epoxy resin so that the surface of the layer 2 is flattened. On top of layer 2, an adhesive layer 3 for this layer 2 is formed, and then a layer 6 of a conventional plastic film for thermal transfer is placed on top of this adhesive layer 3 and a layer of gravure printing ink for thermal transfer underneath. 5 is printed and laminated under this printing ink layer 5 such that a layer 4 of an adhesive for the printing ink layer 5 of the same composition as that for the lower coating layer 2 is coated. The adhesive layer 4 faces the adhesive layer 3 for the lower covering layer 2;
The resulting material is transferred by heating,
The film was removed, and a conventional transparent coating layer containing a typical UV absorber (hereinafter, referred to as "the following") was formed on the exposed printing surface.
UV coating layer), and the adhesive forming each of the adhesive layers 3 and 4 may be a ketone such as acetone, methyl ethyl ketone, methyl propyl ketone, methyl isopropyl ketone and cyclohexanone, or ethyl acetate or the like. Includes a solution of a copolymer of vinyl chloride and vinyl acetate containing a small amount of unsaturated dicarboxylic acid dissolved in esters such as butyl acetate, and the method of applying the adhesive comprises: It is any method selected from all conventional methods such as spraying, roller coating, screen printing and brushing.

[0010]

According to the ceramic tile of the present invention,
Since the lower coating layer 2, the adhesive layer 4 for the printing ink layer 5, the gravure printing ink layer 5 and the UV coating layer 6 are formed in this order on the first sintered ceramic base 1, the surface is rough. It has a flat, sharp and clear multi-colored design, and has excellent corrosion resistance due to the UV coating layer, and has excellent abrasion resistance and strength without causing scratches and cracks.

In addition, since multiple sintering processes are not performed, as is the case with conventional multiple-sintered ceramic tiles, they can be easily and conveniently manufactured, thereby reducing fuel and operating costs. And the cost goes down,
At the same time, mass production is possible by shortening the manufacturing time.

In addition, an adhesive layer 3 for the undercoat layer
And since the adhesive layer 4 for the printing ink layer 5 is made of a material having the same properties and has excellent adhesion to metals, it is adhered by the lower coating layer 2 of the tile base 1 and the thermal transfer method. The printing ink layers 5 of the film layer 6 are strongly adhered to each other without separation.

Accordingly, the ceramic tiles of the present invention have a wide variety of distinct coloring and design characteristics, and are precise, distinct, durable and inexpensive.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a ceramic tile made according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceramic tile base 2 Lower coating layer 3 Adhesive layer for lower coating layer 4 Adhesive layer for printing ink layer 5 Gravure printing ink layer 6 Film or ultraviolet coating layer

Claims (3)

[Claims] The lower coating layer (2) is made flat by coating the base (1) of the ceramic tile (1) which has been first sintered by infiltration with an epoxy resin. And the resulting layer (2)
On which an adhesive layer (3) for this layer (2) is formed and then a layer (6) of a conventional plastic film for thermal transfer on top of this adhesive layer (3), A gravure printing ink layer (5) for printing is printed, and under this printing ink layer (5), a printing ink layer (5) of the same composition as the layer (3) for the undercoat layer (2). The adhesive layer (4) is laminated so as to be coated such that the adhesive layer (4) faces the adhesive layer (3) for the lower coating layer (2), and so on. Transferred by heating, then the film is removed, and a normal transparent coating layer containing a typical ultraviolet absorber is formed on the obtained exposed printing surface. Ceramic tiles with diverse and clear patterns. 2. An adhesive forming each of the adhesive layers (3, 4) may be a ketone such as acetone, methyl ethyl ketone, methyl propyl ketone, methyl isopropyl ketone and cyclohexanone, or an adhesive such as ethyl acetate or butyl acetate. The ceramic tile having a diverse and well-defined pattern according to claim 1, comprising a solution of a copolymer of vinyl chloride and vinyl acetate containing a small amount of unsaturated dicarboxylic acid dissolved in esters. 3. The method for coating the adhesive with a spray method,
The ceramic tile having a diverse and well-defined pattern according to claim 1, which is any method selected from all conventional methods such as roller coating, screen printing and brushing.