KR20180022554A - Decoration sheet and manufacturing method of the decoration sheet - Google Patents

Abstract

According to one disclosure of the present invention, provided are a method of manufacturing a decoration sheet and a decoration sheet manufactured by the method. A decoration sheet with excellent quality can be manufactured through the method of the present invention by pattern-printing so as to have excellent surface strength, waterproof effect and appearance in the process of applying an adhesive and pattern-printing. According to one embodiment, a method of manufacturing a decoration sheet using gravure printing can be provided.

Description

[0001] DESCRIPTION [0002] Decoration sheet and manufacturing method of the decoration sheet [

The present invention relates to a decoration sheet producing method and a decoration sheet using the manufacturing method.

With the development of printing technology, various apparatuses and methods have been developed for coating a coating liquid on a coating material such as paper, synthetic resin film, or fabric.

Typical coating methods include Mayer Bar Coating method and gravure coating method, and a typical example of the gravure coating method is Doctor Chamber Type Gravure coating method.

The Meyer Bar Coating method uses a wire having a diameter of about 19 mm, and has a problem that scratches are frequently generated. The gravure coating method is preferred because it has less loss of coating solution and uniformity of coating as compared with other coating methods.

The gravure coating method is classified into a general gravure coating method (generally using a gravure roller having a diameter of 100 mm or more) and a micro gravure coating method (using a gravure roller having a diameter of 50 mm or less). The doctor chamber type gravure The method corresponds to a general gravure coating method.

Deco tiles are generally used as interior decorations for interior decorations. They are generally made of high-priced veneers. Deco tiles are made of relatively inexpensive synthetic resin panels as an alternative. Such a decorative tile is applied to products such as a desk, a dining table, a building interior material, a car interior, a frame, and the like, and is used as a substitute for a veneer to have the same or similar effect as a veneer.

In order to form a decorative tile made of such a synthetic resin panel, a printed thermal transfer film is transferred to the surface of a synthetic resin panel, which is a adherend, by a thermal transfer method to form a printed pattern on the panel surface to form a decor tile Respectively.

Therefore, in order to form such a transfer sheet, a transfer layer for the decorative layer is formed on the surface of the thermal transfer film, a printing layer is formed on the surface of the release layer, And then transferring the printed layer of the film to the surface of the adherend by thermal transfer to form a grain pattern on the surface of the adherend panel.

However, in the conventional transfer paper for a decorative tile, when the print layer is formed by simply printing a grain pattern, the texture of the print surface expressed on the surface of the panel, which is the adherend, is not the same as the pattern using the wood, It has the disadvantage that the quality of the decor tiles is deteriorated by being expressed as printed.

Korean Patent Publication No. 10-200800006586 (published Jan. 16, 2008) Japanese Patent Application Laid-Open No. 2014-533764 (published on December 15, 2014) Japanese Patent Application Laid-Open No. 2014-180760 (published on September 29, 2014)

According to an embodiment of the present invention, it is an object of the present invention to achieve a higher productivity by switching to a process of automating a work process of a deco sheet, which has been done by hand.

According to one embodiment, a decorative sheet manufacturing method using gravure printing can be provided. In this method, a corona-treated polyester film on both sides of a monolayer is adhered to a monolayer of PVC to protect the monolayer A step of forming a polyester film layer, a step of applying an adhesive primer to both sides of the polyester film to form a primer layer, a step of forming a pattern print layer by pattern printing on one side of a primer layer formed on one side of the polyester film Forming a deflector film layer by sequentially applying a deflector film after drying the applied pressure-sensitive adhesive, and forming a deflector film layer on one surface of the deflector film layer using a gravure roll, To give a melamine resin, a mixture of a crosslinking agent and a thermosetting agent was added to an amorphous synthetic silica gel To form a textured layer by applying a textured coating agent added in an amount of 15 to 40% by weight to the surface of the primer layer formed on the other side of the polyester film.

In addition, the step of forming the pattern print layer includes an ink pan for supplying the conductive ink for printing electronic elements, and an ink pan disposed on the upper side of the ink pan to measure the position of the mark of the film and the mark of the printed material at the time of printing the electronic element A doctor blade disposed at a predetermined interval from the mark measuring camera, and a pattern roll positioned between the mark measuring camera and the doctor blade for printing a pattern print layer on the primer layer. The printing apparatus may be used.

Further, according to an embodiment, a step of forming a glitter layer by applying a glitter solution to one surface of the pattern print layer, which is formed between the pattern print layer and the deflector film layer, and a step of extruding the decoration sheet containing the glitter layer into an embossing roll Thereby forming a diffuse reflection function on the decoration sheet.

The step of forming the texture layer may be characterized in that the decoration sheet having the textured layer is aged at a temperature of 80 to 90 캜 for 60 hours.

 The step of forming the decorating sheet on the surface of the roll includes the steps of forming a diffused reflection pattern in which a plurality of groups of gravure cells each having a depth varying in the axial direction of the roll are formed in the rotation direction of the roll, Wherein the gravure cell is formed at a depth of 11 to 32 탆 on the surface of the roll, and the depth is changed so that a difference of 1 탆 is produced per inch. have.

According to one embodiment, the decorating sheet of the present invention can improve the surface strength by enhancing the adhesion due to primer application by corona treatment on both sides.

According to one embodiment, the decorating sheet of the present invention is manufactured by using the roll-to-roll gravure element printing apparatus, thereby ensuring the superimposed printing technique and improving the printing speed and printing accuracy.

According to one embodiment, the roll-to-plate method is continuously performed to freely perform lamination printing, thereby improving printing efficiency.

According to one embodiment, the protection function can be enhanced from foreign substances such as water drops, dust, etc. by forming the deflector layer.

1 is a schematic view illustrating a printing process of a conventional gravure roller and a coating material using the same.
2 is a flow chart illustrating a method of manufacturing a decoration sheet using gravure printing, according to an embodiment of the present invention.
3 is a schematic view showing a cross-section of a decoration sheet using gravure printing according to an embodiment of the present invention.
4 is a view for explaining a process of printing an electronic element using a printing apparatus according to an embodiment of the present invention.
5 is a view showing a gravure roller for guiding diffused reflection according to an embodiment of the present invention.

Hereinafter, an embodiment according to the present invention will be described with reference to the accompanying drawings. The present embodiments are not intended to be limiting.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" May be used to readily describe an element or component and other element or components of the correlation. Spatially relative terms should be understood to include, in addition to the orientation shown in the drawings, terms that include different orientations of members during use or operation. For example, "upper" can be interpreted as "lower" when a member shown in the drawing is inverted. The members can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprises, "and / or" comprising ", as used herein, unless the recited element, step, operation and / Or additions.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

1 is a schematic view illustrating a printing process of a conventional gravure roller and a coating material using the same.

The gravure printing method is a concave printing method using a copper plate, unlike ordinary paper printing. More specifically, the gravure printing method is a printing method in which a recessed portion of a plate is filled with ink and pressure is applied, and is used mainly in packaging materials such as vinyl.

1, the coating liquid 300 is supplied to the gravure roller 200, and the gravure roller 200 is rotated in contact with the coating material 400, So that the coating liquid 300 applied to the gravure cell 201 of the gravure roller 200 is applied to the material 400 to be coated.

2 is a flow chart illustrating a method of manufacturing a decoration sheet using gravure printing, according to an embodiment of the present invention.

In step S210, a decorative sheet manufacturing apparatus according to an embodiment of the present invention attaches a polyester film corona-treated on both sides of a monolayer to a monolayer of PVC to protect the monolayer, Layer can be formed.

In step S220, an apparatus for manufacturing a decoration sheet according to an embodiment of the present invention can form a primer layer by applying an adhesive primer on both sides of a polyester film.

In step S230, the decorating sheet manufacturing apparatus according to an embodiment of the present invention can form a pattern printed layer by pattern printing on one side of a primer layer formed on one side of a polyester film.

In step S240, an apparatus for manufacturing a decorating sheet according to an embodiment of the present invention includes a step of applying a pressure-sensitive adhesive on one side of a pattern print layer using a gravure roll, drying the applied pressure-sensitive adhesive, A deflector film layer can be formed.

In step S250, an apparatus for producing a decorating sheet according to an embodiment of the present invention includes a melamine resin in which a mixture of a crosslinking agent and a thermosetting agent is mixed with 15 to 40% by weight of an amorphous synthetic silica gel to give a matting effect to one surface of the deflecting film layer A textured coating can be applied to form a textured layer.

In step S260, the apparatus for manufacturing a decoration sheet according to an embodiment of the present invention may be printed on one side of a primer layer formed on the other side of a polyester film to form a veneer print layer.

Further, according to an embodiment, a step of forming a glitter layer by applying a glitter solution to one surface of the pattern print layer, which is formed between the pattern print layer and the deflector film layer, and a step of extruding the decoration sheet containing the glitter layer into an embossing roll Thereby forming a diffuse reflection function on the decoration sheet.

The step of forming the texture layer may be characterized in that the decoration sheet having the textured layer is aged at a temperature of 80 to 90 캜 for 60 hours.

For example, the step of forming the pattern printed layer includes an ink pan for supplying a conductive ink for printing an electronic element, and an ink pan disposed at an upper portion of the ink pan to position the mark of the film and the mark of the printed material A doctor blade which is installed at a predetermined interval from the mark measuring camera and a pattern roll which is located between the mark measuring camera and the doctor blade and prints a pattern print layer on the primer layer, And a printing apparatus provided therein is used.

As another example, the step of forming the pattern print layer may include a horizontal moving part provided on the upper part of the main body so as to be movable left and right and upward and downward, An inclined moving part provided at an upper portion of the moving part and moving along an inclined angle formed by a distance shifted to the left and right of the horizontal moving part, an ink pan positioned at an upper part of the inclined moving part and supplying conductive ink for printing an electronic element, A mark measuring camera disposed at an upper portion of one side of the ink pan for measuring the position of the mark of the film and the mark of the printed material at the time of printing the electronic element, a doctor blade installed at a predetermined interval from the mark measuring camera, And a pattern roll which is located between the doctor blade and prints a pattern print layer on the primer layer is used It can be made.

The step of forming the decorating sheet on the surface of the roll includes the steps of forming a diffused reflection pattern in which a plurality of groups of gravure cells each having a depth varying in the axial direction of the roll are formed in the rotation direction of the roll, The gravure cell is formed on the surface of the roll at a depth of 11 μm to 32 μm and is characterized in that the depth is changed so that a difference of 1 μm or less per inch is generated .

3 is a schematic view showing a cross-section of a decoration sheet using gravure printing according to an embodiment of the present invention.

The decorating sheet 10 using gravure printing comprises an original layer 100, a polyester film layer 101, a primer layer 102, a pattern print layer 103, a deflector film layer 105, a texture layer 106, , And a vedic print layer 104. [

More specifically, the decorative sheet of the present invention comprises a PVC single-layer 100, a double-sided corona-treated polyester film layer 101 adhered to both sides of the single layer to protect the single layer, A pattern print layer 103 formed by pattern printing on one surface of a primer layer 102 formed on one side of a polyester film, a pattern print layer 103 ), A deflector film layer 105 formed by applying a pressure-sensitive adhesive on a gravure roll, drying the applied pressure-sensitive adhesive and continuously layering a deflector film continuously, a melamine resin A textured layer 106 formed by applying a textured coating agent containing 15 to 40% by weight of amorphous synthetic silica gel to a mixture of a crosslinking agent and a thermosetting agent, and a polyester film On a surface of a primer layer formed on the other surface formed with a lop lop printing may include printing layer 104. The

The fabric is 0.07 mm thick, the polyester film is 60-80 μm thick, the primer layer is 50-100 μm thick, the pattern print layer is 0.15-0.36 mm thick, the texture layer is 10- The thickness of the laminate layer is 30 mu m, and the thickness of the laminate layer is 20 mu m to 40 mu m.

According to one embodiment, the polyester film 101 is used as a base film, and it is preferable to polish both sides by corona treatment. Since the corona treatment serves to increase the interlayer adhesion by imparting polarity to the polyester film 101, it is preferable to conduct corona treatment on both sides in order to form a layer on both sides of the polyester film 101.

The primer layer 102 is formed on both sides of the polyester film 101 to improve adhesion between the polyester film and the ink layer. At this time, the thickness of the primer layer is preferably 1 to 3 mu m. When the thickness of the primer layer is less than 1 탆, there is a problem that the adhesive strength is insufficient. When the thickness is more than 3 탆, there is a problem that delamination occurs.

According to an exemplary embodiment, the pattern printing layer 103 may further include a glitter layer formed between the pattern print layer 103 and the deflector film layer 105 and formed by applying a glitter solution on one side of the pattern print layer 103, And the decorating sheet is extruded into the embossing roll so that the decorating sheet has a diffuse reflection function.

The Vedic Printed Layer 104 improves the opacity of the film and is preferably formed on the surface of the film attached to furniture or the like when it is attached to furniture or an interior material.

According to one embodiment, a coating layer coated with an ultraviolet curing paint or an overcoating agent may be additionally formed on the upper side of the pattern print layer 103. The coating layer serves to increase the surface strength of the entire film and to protect the printing layer.

Although ultraviolet curing paints differ from each other in application, it is more preferable to use ultraviolet curing paints based on urethane resin as a whole. Urethane ultraviolet ray curing paints have an advantage of having a high light resistance, so they are more effective when used as ultraviolet ray curing paints.

Here, the overcoating agent may be formed by applying any one of overcoating agents selected from the group consisting of a polyester overcoat, a polyurethane overcoat, an acryl polyol overcoat, and an epoxy overcoat.

Even when the overcoating agent is applied, it has a role of protecting the printing layer as well as the case of applying the ultraviolet curing paint. Preferably, the ultraviolet curing paint has an advantage of scratch resistance and solvent resistance, do.

According to one embodiment, each layer shown in FIG. 3 is preferably formed sequentially, and when the order of the layers is reversed, there is a problem that the scratch resistance, solvent resistance, and adhesion to a panel are inferior.

Further, it is more preferable that the respective layers are formed on both sides of the polyester film. When each layer is formed on both sides of the polyester film, the veneer layer formed on the back surface of the polyester film not only enhances the hiding power but also hardener contained in the printing ink reacts with the adhesive when adhering to the panel, It has an advantage that it has an adhesive strength that is higher than that of a conventional PVC film.

According to one embodiment, the deflector film layer 105 may be formed by a gravure coating method. Gravure coating has the advantage of less coating liquid loss and uniform coating compared to other coating methods.

It is preferable that the gravure copper plate used for gravure coating has a depth of 150 to 200 占 퐉 and a shape of 45 to 60 占 slant lines or dot patterns, and proceeds with intaglio printing. When the depth of the gravure copper plate is less than 150 탆, the coating amount of the water-based pressure-sensitive adhesive is lowered to cause defects. If the thickness exceeds 200 탆, the overcoating of the water-based pressure-sensitive adhesive may exceed the masking range of the deflector film.

The coating amount of the pressure-sensitive adhesive during gravure coating is preferably 30 to 45 占 퐂 / m 2. For satisfactory adhesion of the deflector film, it is preferable to include 25 占 퐂 or more after application and drying of the pressure-sensitive adhesive. Therefore, in order for the amount of coating after drying to satisfy the tacky reference value, it is preferable that the amount of tacky coating is 30 to 45 / / m 2 when the coating is gravure-coated.

4 is a view for explaining a process of printing an electronic element using a printing apparatus according to an embodiment of the present invention.

According to one embodiment, the pattern print layer may be formed using the printing apparatus 120 according to an embodiment of the present invention.

The main body 110 is supported on the bottom surface to support the printing apparatus 120 and the film transfer control unit 130.

The printing apparatus 120 is provided on the upper portion of the main body 110 so as to be movable left and right and upward and downward to print the electronic element 104 on the film 102.

The printing apparatus 120 includes a horizontal moving part 121 capable of moving left and right, an inclined moving part 122 capable of moving up and down, an ink pan positioned at an upper part of the inclined moving part 122, A mark measuring camera 124 for measuring the printing marks of the electronic element 104; a Doctor Blade 125 spaced apart from the mark measuring camera 124; ) 126, which are shown in FIG.

The horizontal moving part 121 is installed so as to be able to move left and right on a horizontal line within a predetermined section of the main body 110. The horizontal movement of the horizontal movement portion 121 is performed through a linear motor.

The inclined moving part 122 is provided on the upper part of the horizontal moving part 121 and is inclined upward and downward along a predetermined inclination angle. For example, the inclined moving part 122 is inclined upward and downward along an inclination angle formed by a distance shifted left and right from the original position as the horizontal moving part 121 moves leftward and rightward from the original position.

The ink pan 123 is provided at an upper portion of the inclined moving portion 122 and serves to supply conductive ink for printing the electronic element 104. [ After the printing is completed, the ink pan 123 is instantly brought into contact with the pattern roll 126 which rotates by rising through the cylinder air pressure. In addition, the ink pan 123 can be removed by wiping off unnecessary ink on the non-lead portion via the doctor blade 125 in such a manner that the ink is lowered upon printing of the electronic element 104 to stop the ink supply, To be printed.

The mark measuring camera 124 is disposed at an upper portion of one side of the ink pan 123 to measure the mark of the film 102 and the mark of the printed material formed at the position where the electronic element 104 is to be printed. The mark measuring camera 124 measures the print mark of the electronic element 104 after the stop of the feeding of the film 102 in the printing process of the electronic element 104 and detects the direction in which the impression plate 131 crosses and the film 102 are controlled in the direction in which they are fed so as to be capable of multilayer printing.

The doctor blade 125 is spaced apart from the mark measuring camera 124 at regular intervals. The doctor blade 125 moves up to the side of the impression plate 131 together with the ink pan 123 in the process of printing the pattern print layer on the film 102, The conductive ink is wiped off.

The pattern roll 126 is positioned between the mark measurement camera 124 and the doctor blade 125 to print the electronic element 104 on the film 102. [ The pattern roll 126 is provided with a storage space 126a for storing conductive ink for printing electronic devices at regular intervals. The pattern roll 126 rotates in the direction in which the film 102 is conveyed, that is, clockwise, so that the electronic device 104 can be printed on the film 102. The pattern roll 126 is connected in the same axis as the ink pan 123 so as not to interfere with the supply of the conductive ink when the ink ribbon is moved upward, downward, leftward and rightward.

The pattern roll 126 and the doctor blade 125 are installed below the impression plate 131 and the idler roller 132. The imprint plate 131 and the impression roller It is possible.

The inclined moving part 122 having the above configuration, the ink pan 123, the mark measuring camera 124, the doctor blade 125, and the pattern roll 126 are connected by the same single shaft, Down direction to perform the corresponding process.

The idler rollers 132 are rotatably provided at both ends of the impression plate 131 to switch the conveyance direction of the film 102.

The guide rollers 133 are spaced apart from the idle rollers 132 at regular intervals to guide the transport of the film 102.

The pressing roller 134 is installed on one side of the heating chamber 140 and conveys the film 102 conveyed via the heating chamber 140 to a desired position. The pressing roller 134 may be formed of any one of rubber, urethane, and silicone.

The feeder 135 is disposed at a position adjacent to the pressing roller 134, and is rotatably installed to feed the film 102. The feeder 135 receives the rotational power from the motor 136 and is rotated. The feeder 135 may be involved in the pitch movement control of the film 102.

The film 102 transported through the film transport control unit 130 having the above-described structure is transported in a stop and go manner.

The heating chamber serves to dry the electronic element 104 printed on the film 102, which is provided on the upper portion of the film transfer control unit. The heating chamber 140 dries the film 102, which is transported in a stop-and-go manner at the lower portion of the impression plate, by controlling the drying time to a predetermined time.

5 is a view showing a gravure roller for guiding diffused reflection according to an embodiment of the present invention.

The gravure roller 50 for inducing irregular reflection of FIG. 5 is formed by forming a cell group 20 in the axial direction a of the roll 10 to form a plurality of cell groups 20 in the rotational direction d of the roll 12 The gravure roller 50 for inducing irregular reflection of FIG. 3 forms the cell group 30 in the rotation direction b of the roll 12 and forms the cell group 30 in the axial direction a of the roll 10 30, the cell groups 20, 30 are formed by using the gravure cells 21 whose depths are gradually different from each other. This is because the material to be coated (the paper on which the reflection layer is formed, the synthetic resin film, Fabric, etc.) 90 may have various shapes and patterns as long as the ink 60 is bent so as to have a diffused reflection effect. For example, the cell group 20 is formed in the oblique direction of the roll 12, and the like.

On the other hand, in the point that the gravure cell 21 is gradually changed in depth in any direction of the roll 12, the depth is gradually changed instead of always changing the depth, It may be possible to make it different. In addition, the minimum depth of the gravure cell is 12 占 퐉, the maximum depth is 30 占 퐉, and the cell group 30 can be formed while gradually changing the depth to 1 占 퐉 per 1 inch. This feature is not visible to the naked eye but is effective for diffuse reflection.

The ink that is printed on the coating material 90 by the gravure cell 21 is expressed in a substantially square shape. However, since the gravure cell 21 is represented by a square shape, the gravure cell 21 may be circular And may be grooves of various shapes.

The gravure printing apparatus having the gravure roller for guiding diffuse reflection according to the present invention includes any one of the gravure rollers for guiding the diffusive reflection and the ink supply unit for supplying the ink 60 to the surface of the gravure roller for guiding the diffusive reflection, The ink (60) is characterized in that it is a coloring agent for use in flocculation.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined only by the appended claims.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

Claims (1)

Manufacturing method of decoration sheet

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