JPH0899397A - Surface material and production thereof - Google Patents

Abstract

PURPOSE: To obtain a surface material capable of expressing a highly three- dimensional feeling/depth feeling even with respect to a thin semi-hard film or sheet and suitable for a wall material or furniture. CONSTITUTION: Embossing processing is applied to a transparent thermoplastic resin film or sheet by a precise embossing roll formed by photographic plate making technique to form predetermined embossed patterns having protruding parts provided with a large number of ridge groups to the transparent thermoplastic resin film or sheet. An ink coating part 5 of color patterns is formed on the single surface of a thermoplastic resin base film or sheet 4 and a heat seal layer 6 is provided on this surface to be doubled with the transparent thermoplastic resin film or sheet 1 in a thermally softened state and the protruding parts and ridge groups of the transparent thermoplastic resin film or sheet are embedded in the heat seal layer 6 to obtain a surface material laminated in such a state that air 7 is interposed between the protruding parts and ridges.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a covering material and a method for manufacturing the same, and is suitable for a covering material for walls, a covering material for furniture, etc., particularly a three-dimensional feeling, a depth feeling, and a lacquer protruding from the inside. The present invention relates to a surface covering material capable of expressing a tone texture and the like, and a manufacturing method thereof.

[0002]

2. Description of the Related Art Conventionally, (a) a printing method for expressing a motif as a more realistic three-dimensional effect by photolithography on a surface material, and (b) printing or embossing (also called grain) on a base material. , A transparent thermoplastic resin film or sheet or a transparent sol is applied on the transparent layer method to express depth and transparency, and (c) a squeeze roll having a three-dimensional texture chair to perform mechanical squeezing. A diaphragm method that expresses a three-dimensional effect as it is, a print tuning diaphragm method that expresses a three-dimensional effect by combining (d) the printing method (a) and the diaphragm method (c), and the like are adopted.

[0003]

In each of the above methods, general stereoscopic effect and depth feeling can be expressed. However, in the printing method (a), the transparent layer method (b), and the drawing method (c), the taste of printing and the taste of drawing can be expressed individually. Further, in the (d) print tuned diaphragm method, it is necessary to synchronize (pattern matching) the printed matter (print) and the diaphragm shape, and this work requires extremely skill. Further, in any of the methods (a) to (d), it is difficult to express a three-dimensional effect and a depth feeling with a thin semi-rigid film or sheet, for example, a semi-rigid film or sheet having a thickness of about 0.18 mm, and finely patterned. Not suitable for small things.

The object of the present invention is to solve the above-mentioned conventional problems and to express the stereoscopic effect and the depth feeling to a higher degree, and also express the stereoscopic effect and the depth effect to a thin semi-rigid film or sheet. An object of the present invention is to provide a cover material that can be manufactured and a method of manufacturing the cover material that can easily manufacture the cover material.

[0005]

In order to achieve the above object, the cover material of the present invention is formed with a plurality of convex portions in a predetermined pattern, and a protrusion is formed on the top of the convex portions. The transparent thermoplastic resin film or sheet and the thermoplastic resin base film or sheet in which a large number of ridge groups formed with intervals are formed, with respect to the surface on which the convex portion of the transparent thermoplastic resin film or sheet is formed, It is characterized by being laminated via a heat seal layer.

In the cover material of the present invention, the group of ridges formed on the transparent thermoplastic resin film or sheet includes a group of ridges formed by a large number of ridges at predetermined intervals and a ridge of the group of ridges. It is desirable that at least two kinds of ridge groups among other ridge groups formed with a large number of ridges having different angles from the ridges are formed.

Further, in the surface covering material of the present invention, it is desirable that the top of the protrusion formed on the transparent thermoplastic resin film or sheet is provided with an ink application portion. Further, it is desirable that printing is performed on the joint surface side of the thermoplastic resin base film or sheet with the heat seal layer, and each ridge formed on the transparent thermoplastic resin film or sheet in the heat seal layer. It is preferable that the projecting end side is embedded and laminated so that air is present in the groove part between the projecting parts of the transparent thermoplastic resin film or sheet and the groove part between each projecting ridge.

According to the method of manufacturing a cover material of the present invention, a plurality of recesses are formed in a predetermined pattern by a photomechanical process, and a plurality of grooves are formed at the bottom of the recesses at predetermined intervals. A precision embossing roll in which groups are formed is produced, and one side of the transparent thermoplastic resin film or sheet is squeezed through the precision embossing roll to form the recess and groove on one side of the transparent thermoplastic resin film or sheet. To form a convex portion and a ridge corresponding to each, and then the transparent thermoplastic resin film or sheet and the thermoplastic resin base film or sheet are thermocompression-bonded via a heat-sealing layer, and each protrusion of the ridge is formed. The part side is embedded in the heat seal layer.

[0009]

According to the surface covering material of the present invention, the projecting ridges formed on the thermoplastic resin film or sheet are joined while maintaining their shapes, and therefore, are embedded in the heat seal layer. The shape of the ridges formed on the convex portion of the transparent thermoplastic resin film or sheet and the color of the thermoplastic resin base film or sheet are combined to express a stereoscopic effect and a sense of depth.

In particular, when a plurality of ridge groups having different angles are provided, the reflection effect, the three-dimensional effect, and the depth sensation of each ridge group are more highly exhibited. Further, when the ink coating portion is formed on the top of the protrusion of the convex portion formed on the thermoplastic resin film or sheet, and further printing is performed on the heat seal layer side of the thermoplastic resin base film or sheet, these A unique design effect is produced by the synergistic effect of the printed pattern. Furthermore, when the protrusion end side of each protrusion formed on the transparent thermoplastic resin film or sheet is embedded in the heat seal layer and air is present in the groove between each protrusion and the groove between each protrusion, that portion Diffuse reflection in 3D gives a higher sense of depth and stereoscopic effect.

According to the method for manufacturing a covering material of the present invention, the thermoplastic resin film or sheet is thermocompression-bonded to the thermoplastic resin base film or sheet directly without thermocompression bonding through the heat-sealing layer. , A transparent resin film or sheet having a convex and concave shape formed on a thermoplastic resin film or sheet can be joined while maintaining its shape, and a concavo-convex shape is formed by precision embossing Since the heat seal layer is thermocompression bonded, a thin semi-rigid film or sheet, for example, a thin film or sheet of about 0.14 to 0.30 mm can be used.

[0012]

EXAMPLES Examples of the covering material of the present invention will be described below with reference to FIGS.
It will be described based on. FIG. 1 shows a pattern of a pattern when an embossing roll (reflection knurl) is created. First, in forming the pattern of this pattern, in the present embodiment, first to fifth plate-making films are formed.

In the first plate-making film, as shown in the figure, the pattern A has a large number of bias lines a at an angle of -45 °.
Is a positive film formed at predetermined intervals. The second plate-making film is a positive film in which a pattern B as shown in the figure is formed with a large number of bias lines b at a predetermined interval at an angle of 30 °. In the third plate-making film, the pattern C as shown is a positive film in which a large number of bias lines c are formed at predetermined angles at an angle of −30 °. The fourth plate-making film is a positive film formed in a so-called vine state without a bias line in a pattern D as shown. The fifth plate-making film is a positive film in which a pattern E as illustrated is formed with a large number of bias lines e at an angle of 45 ° at predetermined intervals.

These plate-making films are composed of, for example, patterns A, B, and C as a base, and patterns D and E are made to be able to cover the bases of patterns A, B, and C.
A precision embossing roll is prepared by photolithography such as baking and etching so as to form the edges of the pattern E. On this precision embossing roll, there is formed a diaphragm having an uneven portion having a pattern corresponding to the plurality of positive films.

Next, when the transparent thermoplastic resin film or sheet is pressed by a precision embossing roll, irregularities corresponding to the irregularities formed on the precision embossing roll are formed. FIG. 2 is a perspective view showing the transparent thermoplastic resin film or sheet after the pressing processing, and FIG. 3 is a cross-sectional view of the main part thereof. In this transparent thermoplastic resin film or sheet 1,
A concave portion 2 corresponding to the convex portion of the precision embossing roll and a protrusion 3 corresponding to the groove of the precision embossing roll are formed.

In the above structure, the transparent thermoplastic resin film or sheet 1 is made of a thermoplastic resin such as polyvinyl chloride, polyvinylidene chloride, acetate, polyethylene, polypropylene, polyester, polystyrene, polycarbonate, polyvinyl alcohol or polyamide. Although the following film or sheet can be used, a film or sheet containing polyvinyl chloride and a plasticizer is suitable from the viewpoint of hardness adjustment, processability and transparency.

The thickness of the transparent thermoplastic resin film or sheet 1 varies depending on the use of the covering material, but is 60 to 1
A thickness of 40 μm is desirable. When the thickness of the transparent thermoplastic resin film or sheet 1 is thinner than the depth of the ridges, the back side of the transparent thermoplastic resin film or sheet 1 becomes uneven, while when it is thicker than 140 μm, the thermoplastic resin base film or sheet When 4 and the transparent thermoplastic resin film or sheet 1 are combined via the heat seal layer 6, the thickness becomes unnecessarily large, which is inconvenient in workability and transportation.

Further, the pitch of the ridges formed on the surface of the convex portion by the pressing process applied to the transparent thermoplastic resin film or sheet 1 is 300 to 100 mesh per inch, and therefore the ridges are formed. Pitch is 84-254μ
m. On the other hand, the width of the top of the ridge is 42 to 127 μm. Next, the depth between the protrusions is preferably 15 μm to 50 μm. If the depth between the ridges is less than 15 μm, it will be difficult to form the groove group in the manufacture of the squeeze roll, while if it is more than 50 μm, the reflection effect due to the groove group, depth feeling, stereoscopic effect, etc. It becomes difficult to express delicately.

The ridges formed on the surface of the convex portion of the transparent thermoplastic resin film or sheet 1 consist of a large number of ridges formed at a predetermined interval, but preferably a large number of ridges are formed at a predetermined interval. It is preferable that at least two kinds or more of the other projected ridge groups formed by forming a large number of the projected ridges and the ridges of the projected ridge group having different angles from each other are formed. . In this case, a unique design effect can be expressed by the reflection effect due to the difference in the reflection direction due to the protrusion groups embedded in the heat seal layer 6 and having different angles.

Next, as shown in FIGS. 4 and 5, an ink application portion 5 having a predetermined color pattern is formed on the surface of the thermoplastic resin base film or sheet 4. As the thermoplastic resin base film or sheet 4, a resin similar to the resin used for the transparent thermoplastic resin film or sheet 1 can be used. The thickness of the thermoplastic resin base film or sheet 4 varies depending on the use of the covering material, the height of the convex portions formed on the transparent thermoplastic resin film or sheet 1, and the like, but is preferably about 60 to 140 μm, for example.

Next, the ink application portion 5 formed on the thermoplastic resin base film or sheet 4 has an arbitrary pattern according to the arrangement state of the convex portions formed on the lower surface of the transparent thermoplastic resin film or sheet 1. Color pattern can be selected. The ink application portion 5 is formed not only in the concave portion 2 of the transparent thermoplastic resin film or sheet 1 but also in the portion corresponding to the portion of the ridge 3, and expresses a unique three-dimensional effect by the synergistic effect of the color pattern of the both. be able to.

Next, a heat seal layer 6 is provided on the thermoplastic resin base film or sheet 4. For the heat seal layer 6, for example, an adhesive such as an adhesive selected from the group of vinyl chloride-vinyl acetate-based, ethylene-acrylate-based, polyester-based, ethylene-vinyl acetate-based, polyurethane-based, and polycarbonate-based adhesives is used. can do. Of these adhesives, it is desirable to select one that is compatible with the respective resins constituting the transparent thermoplastic resin film or sheet 1 and the thermoplastic resin base film or sheet 4. The heat seal layer 6 is preferably transparent, and may be colored and transparent if necessary.
Further, the seal layer 6 is preferably dry and has a thickness of about 5 μm to 10 μm.

Next, with the heat seal layer 6 on the thermoplastic resin base film or sheet 4 being heated and softened, the ridges 3 of the transparent thermoplastic resin film or sheet 1 were formed on the surface of the heat seal layer 6. When the surfaces are faced to each other and joined, a laminated state as shown in FIG. 7 is obtained.

In this case, the softening temperature of the transparent thermoplastic resin film or sheet 1 depends on the number of parts of the plasticizer compounded and the like.
The heat sealing layer 6 has a softening temperature of about 70 to 90 ° C., although it depends on the kind of the adhesive. Therefore, at the softening temperature of the heat seal layer 6, the transparent thermoplastic resin film or sheet 1 can maintain its shape without softening.

As a result, the group of ridges formed on the transparent thermoplastic resin film or sheet 1 is embedded in the heat seal layer 6 while maintaining its shape. By adjusting the degree of pressure bonding of the transparent thermoplastic resin film or sheet 1 to the heat seal layer 6, air 7 is present in the grooves between the protrusions as shown in FIG. 7
The transparent thermoplastic resin film or sheet 1 and the thermoplastic resin base film or sheet 4 can be laminated via the heat-sealing layer 6 with the heat sealing layer 6 interposed therebetween. When such air 7 intervenes, diffuse reflection occurs at the boundary between the air 7 and the resin, and the decorative sheet can have a three-dimensional effect and a sense of depth.

8 and 9 show another embodiment of the decorative sheet of the present invention. In this embodiment, as shown in FIG. 8, the transparent thermoplastic resin film or sheet 1 is provided with an ink application portion 8 on the top of each ridge, and a makeup formed by using the transparent thermoplastic resin film or sheet 1. The sheet has a sectional structure as shown in FIG. In particular, when an ink application portion 8 of pearl ink is formed on the top of the ridge 3 and a three-dimensional effect, a depth impression, etc. are imparted by the reflection effect of this part, especially when the top of the ridge is as much as possible by photoengraving technology. The smaller width is desirable.

A pearl ink is used for the ink application section 8, but an ink having another brightness, for example, a metallic ink may be used instead of the pearl ink. In addition, when a normal coloring ink is used without using a brilliant ink such as a pearl ink or a metallic ink on the top of the ridge, the thermoplastic resin base film or sheet 4 has a brilliant property. A sheet colored with ink can also be used.
Pearl ink, especially on the top of multiple ridges with different angles
When an ink having a brightness such as a metallic ink is applied, the harmony of the color of the thermoplastic resin base film or the sheet 4 and the color of the reflection effect by the ink having the brightness are woven, for example, to a lacquered texture. Can also be expressed.

A backing material is bonded to the lower surface side of the thermoplastic resin base film or sheet 4 (that is, the surface side corresponding to the bonding surface of the transparent thermoplastic resin film or sheet 1). In this case, as the lining material, for example, plywood or the like is used when the covering material is a furniture-furnishing material, and when the covering material is a wall material, a knitted fabric,
Woven cloth, non-woven cloth, paper and the like can be used. Particularly in the case of paper, if flame-retardant paper, aluminum hydroxide paper, glass fiber paper, asbestos paper or the like is used, the flame-retardant effect of the covering material can be enhanced.

The surface of the transparent thermoplastic resin film or sheet 1 preferably has a glossy state in order to form delicate expressions such as a reflection effect, a sense of depth and a three-dimensional effect.
If necessary, in order to reduce the luster of the surface of the film or sheet to make it matte, a matte surface embossing or matte surface treatment may be performed when joining the backing material. Further, the transparent thermoplastic resin film or sheet 1 does not necessarily have to be colorless and transparent, and as long as it does not have a concealing power such that the effect of the ink application part formed in the projecting group can be expressed on the surface, so-called, It may be colored and transparent.

As described above, according to this embodiment, the ink application portion 8 on the top of the ridge formed on the surface of the convex portion of the transparent thermoplastic resin film or sheet 1 embedded in the heat seal layer 6 is exposed to light. Reflection of three-dimensional effect and unique depth feeling, and also thermoplastic resin base film or sheet 4
The ink application part 5 formed in 1) can give a unique lacquer-like texture by the synergistic action of the unique embossed concavo-convex pattern and the color pattern. In addition, since the angle, depth and pitch of the ridges can be changed respectively as a feature of this surface covering material, the so-called post-reflection feature is that the pattern appears to change intricately depending on how the light is received from the viewing angle and direction. . In addition to this, a combination of bright ink such as pearl ink at the top of the ridges and metallic ink, and color pattern of the base film or sheet combine to create a thinner and more three-dimensional and depth-like surface material. Can be expressed inside.

[0031]

As described above, according to the covering material of the present invention,
It is possible to provide a covering material having a higher degree of three-dimensional effect and a superior feeling of depth, and to express a delicate embossed pattern inside a semi-hard film or sheet having an extremely thin thickness. In particular, when an ink application part is provided, it is possible to express a three-dimensional effect and a sense of depth that emerge due to the fusion of the diaphragm embedded inside the heat seal layer and the ink application part at the top of the ridge, and the color of the base ( A lacquer-like texture can also be expressed by the harmony of the colors woven by the thermoplastic resin base film or sheet) and the ink application portion by the reflection effect.

Further, according to the method for manufacturing a covering material of the present invention, the covering material having the above-mentioned characteristics is drawn, printed,
It can be manufactured by the usual simple steps of chipping and doubling.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a pattern of a positive film at the time of photoengraving in the method for manufacturing a cover material of the present invention.

FIG. 2 is a perspective view of a main part of a transparent thermoplastic resin film or sheet according to the present invention.

3 is a cross-sectional view of the main parts of FIG.

FIG. 4 is a perspective view of a thermoplastic resin base film or sheet in the cover material of the present invention.

5 is a cross-sectional view of the main parts of FIG.

FIG. 6 is a cross-sectional view in which a heat seal layer is provided on the thermoplastic resin base film or sheet according to the present invention.

FIG. 7 is a cross-sectional view of essential parts showing an embodiment of a facing material of the present invention.

FIG. 8 is a sectional view of an essential part showing another example of the transparent thermoplastic resin film or sheet of the present invention.

FIG. 9 is a sectional view of an essential part showing another embodiment of the covering material of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transparent thermoplastic resin film or sheet 2 Recesses 3 Protrusions 4 Thermoplastic resin base film or sheet 5 Ink application part 6 Heat seal layer 7 Air 8 Ink application part

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location B32B 31/12 9349-4F 31/20 9349-4F // B29L 7:00

Claims (8)

[Claims] 1. A transparent thermoplastic resin film in which a plurality of protrusions are formed in a predetermined pattern, and a protrusion group in which a plurality of protrusions are formed at a predetermined interval is formed on the top of the protrusions. Alternatively, a sheet and a thermoplastic resin base film or sheet are laminated via a heat seal layer on the surface of the transparent thermoplastic resin film or sheet on which the convex portions are formed, and a covering material. 2. The ridge group formed on the transparent thermoplastic resin film or sheet has a plurality of ridge groups formed at predetermined intervals and the ridge groups of the ridge group have different angles. 2. The covering material according to claim 1, wherein the ridge comprises at least two or more ridge groups among other ridge groups formed in large numbers at predetermined intervals. 3. The depth between the protrusions forming the protrusion group is 15 to 50 μm, and the pitch of the protrusions is 84 to 2
The covering material according to claim 1, which has a thickness of 54 μm. 4. The cover material according to claim 1, wherein an ink application portion is provided on a top portion of a ridge formed on the transparent thermoplastic resin film or sheet. 5. The covering material according to claim 1, wherein printing is performed on a joint surface side of the thermoplastic resin base film or sheet with the heat seal layer. 6. The heat-sealing layer comprises an adhesive selected from the group consisting of vinyl chloride-vinyl acetate-based, ethylene-acrylate-based, polyester-based, ethylene-vinyl acetate-based, polyurethane-based, and polycarbonate-based adhesives. The covering material according to claim 1, which is characterized in that. 7. The heat seal layer is embedded by laminating the projecting end sides of the respective projections formed on the transparent thermoplastic resin film or sheet, and is laminated between the convex portions of the transparent thermoplastic resin film or sheet. Air is intervening in the groove between the groove and each of the ridges, and the covering material according to claim 1. 8. A precision embossing roll having a plurality of recesses formed in a predetermined pattern by a photoengraving method, and a groove group having a plurality of grooves formed at predetermined intervals at the bottom of the recesses. And pressing on one side of the transparent thermoplastic resin film or sheet through the precision embossing roll to form protrusions and protrusions corresponding to the recesses and grooves on one side of the transparent thermoplastic resin film or sheet. Forming a strip, and then thermocompression-bonding the surface of the transparent thermoplastic resin film or sheet on which the projections and the strips are formed and the thermoplastic resin base film or sheet through a heat-sealing layer, and each of the strips is formed. The method for manufacturing a facing material, wherein the tip end side of the is embedded in the heat seal layer.