JPH04168100A - Decorative adhesive sheet and its manufacture - Google Patents

Abstract

PURPOSE:To obtain chromatic contrast and thereby draw any appropriate pattern on a surface to improve decorative properties by forming an uneven part on one surface of a tinted transparent film of a decorative adhesive sheet and laminating a reflective film with high light reflection factor or an adhesive layer on a surface where the uneven part is formed. CONSTITUTION:A decorative adhesive sheet 10 has a projecting part (a recessed part is acceptable) formed on one surface of a tinted transparent film 11, and also has a reflective film 13 with high reflection factor laminated on a surface where the projecting part 12 is formed. In addition, an adhesive layer 15 is laminated on the reflective film 13. The decorative adhesive sheet 10 constituted as described makes a wall or a floor decorative by peeling off a peel-off sheet 16 and attaching the adhesive layer 15 to the wall or the floor. As a projecting part 12 is formed on one surface of a tinted transparent film 11 of the decorative adhesive sheet 10, the tinted transparent layer becomes thick and therefore, a thick color appears in the projecting part 12 and a pale color appears in the other part. Thus a thick color can be developed by the projecting part 12 and a striped pattern can be drawn on the surface of the decorative adhesive sheet 10.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a decorative pressure-sensitive adhesive sheet and a method for manufacturing the same.

(Prior Art) Conventionally, a reflective decorative pressure-sensitive adhesive sheet has been provided in which a colored transparent resin is laminated on a white film containing titanium.

(Problem to be Solved by the Invention) However, with the above-mentioned conventional method, the problem is that the color of the colored transparent film reflected by the white film appears monotonously on the surface of the decorative adhesive sheet, and its value as a decorative adhesive sheet is low. was there.

(Means for Solving the Problems) The decorative pressure-sensitive adhesive sheet of the present invention has an uneven portion formed on one side of a colored transparent film, and a reflective film with high light reflectance is laminated on the surface on which the uneven portion is formed. In addition, an adhesive layer is laminated on the reflective film.

Further, the decorative pressure-sensitive adhesive sheet of the present invention has an uneven portion formed on one side of a colored transparent film, and an adhesive layer having a high light reflectance is laminated on the surface on which the uneven portion is formed.

Furthermore, the method for producing a decorative pressure-sensitive adhesive sheet of the present invention is a method in which a colored transparent resin sol is supplied onto a process paper through a comma coater and a colored transparent film is formed by a casting method, and the colored transparent resin sol is formed by a casting method by slightly vibrating the comma coater. Protrusions are formed on the top surface of the transparent film at appropriate intervals, and then a reflective film with high light reflectivity and an adhesive layer are sequentially formed on the top surface of the colored transparent film, or a light reflecting layer is formed on the top surface of the colored transparent film. This is a method for forming an adhesive layer with a high adhesive rate.

(Function) By forming uneven parts on one side of the colored transparent film of the decorative adhesive sheet, and laminating a reflective film or adhesive layer with high light reflectance on the surface where the uneven parts are formed, the uneven parts are In some areas, the transparent layer becomes thicker and a darker color appears, while in other areas a lighter color appears. In this way, by appropriately forming the uneven portions to create different shades of color, an appropriate striped pattern is drawn on the surface of the decorative pressure-sensitive adhesive sheet.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the structure of a decorative pressure-sensitive adhesive sheet according to claim 1.

The decorative pressure-sensitive adhesive sheet 10 includes a colored transparent film 11 with convex portions (or concave portions) 12 formed on one surface, and a reflective film 1 with high light reflectance on the surface on which the convex portions 12 are formed.
3 is laminated, and an adhesive layer 15 is further applied to the reflective film 13.
are laminated.

The colored transparent film 11 is made of a colored transparent vinyl chloride resin, and is formed to have a thickness of, for example, about 20 to 50 μm, preferably 30 μm.

Further, the color of the colored transparent film 11 may be any color, such as red, blue, yellow, etc., as long as it has sufficient transparency for the light reflected by the reflective film 13.

Convex portions 12 formed on one side of the colored transparent film 11
In the illustrated example, these are semicircular in side view and are formed in the width direction at predetermined intervals.

The height h of the convex portion 12 is approximately 2 to 20μ, preferably 5 to 20μ.
10μ is good, and the width l of the convex portion 12 is 500μ to 1000μ.
The distance between the protrusions 12 and 12 is about 2 to 20 squares, preferably 5 to 10 squares. Note that the shape of the convex portion 12 is not limited to a semicircle, but may be any shape such as a rectangle, a triangle, or a trapezoid.

The reflective film 13 is made of white opaque vinyl chloride resin containing titanium oxide, for example,
It is formed to have a thickness of about 50μ, preferably 50μ. Note that the reflective film 13 is not limited to white, and may be of any color as long as it has a high light reflectance, has a strong contrast with the color of the colored transparent film 11, and is bright.

For the adhesive layer 15, for example, an acrylic adhesive is used. A release paper 16 is attached to the adhesive layer 15.

The decorative adhesive sheet 10 configured in this way has a release paper 1
By peeling off the adhesive layer 6 and pasting the adhesive layer 15 on the wall or floor, the wall or floor can be decorated. Here, since the decorative pressure-sensitive adhesive sheet 10 has a convex portion 12 formed on one side of the colored transparent film 11, the thickness of the colored transparent layer becomes thicker in the convex portion 12, and a dark color appears. A light color appears in some areas. By exposing the dark colored portions using the convex portions 12 in this manner, a striped pattern can be drawn on the surface of the decorative adhesive sheet 10.

For example, when the convex portions 12 are formed in the width direction using a red colored transparent film 11 as in this example, a deep red color appears in the width direction where the convex portions 12 are located, and a light red color appears in other parts. As a result, a dark red striped pattern appears on the surface of the decorative adhesive sheet 10. That is, by changing the shape of the convex portion 12, a pattern corresponding to the shape can be appropriately drawn.

Next, a case in which the decorative pressure-sensitive adhesive sheet 10 configured as described above is manufactured by a sol casting method will be briefly described.

As shown in FIG. 2, process paper 22 wound around a roll 21
is supplied between the roller 23 and a comma coater 25 provided above the roller 23, and a colored transparent vinyl chloride resin sol 26 containing a pigment of an appropriate color is supplied by the comma coater 25 from before the comma coater 25. is applied onto the process paper 22. At this time, by slightly vibrating the comma coater 25, semicircular convex portions 12 are formed on the upper surface of the vinyl chloride resin sol 26 coated on the processing paper 22 at regular intervals in the width direction perpendicular to the feeding direction. be done. The slight vibration of the comma coater 25 can be realized by adjusting the resistance force accompanying the coating of the vinyl chloride resin sol 26 and the fixing strength of the comma coater 25. By heating and drying the vinyl chloride resin sol 26 in which the convex portions 12 are formed to solidify it, the colored transparent film 11 is formed on the processing paper 22. Next, as shown in FIG.
A white vinyl chloride resin sol 27 containing titanium oxide is applied to the colored transparent film 11 to a certain thickness, and then the vinyl chloride resin sol 27 is heated and dried to harden it, thereby forming a reflective film 13. to form. Thereafter, as shown in FIG. 4, the adhesive layer 15 and the release paper 16 are laminated on the reflective film 13 by rollers 28 and 29, and the process paper 22 is peeled off from the thus laminated material. A decorative adhesive sheet 1o shown in the figure is molded.

Further, the release paper 16 is not necessarily necessary. In other words, if the surface of the colored transparent film 11 and the adhesive layer 15 have the required releasability when rolled up in a roll without a release paper like a normal tape and are used, the peeling will be possible. Paper 16 is not necessary.

Furthermore, FIG. 5 shows the structure of the decorative pressure-sensitive adhesive sheet according to claim 2.

The decorative adhesive sheet 30 includes a colored transparent film 31 with a convex portion 32 formed on one surface, and an adhesive layer 33 with high light reflectance laminated on the surface on which the convex portion 32 is formed.

The colored transparent film 31 is made of a colored transparent vinyl chloride resin, and is formed to have a thickness of, for example, about 20 to 50 μm, preferably 30 μm.

Further, the color of the colored transparent film 31 may be any color, such as red, blue, yellow, etc., as long as it has sufficient transparency to the light reflected by the adhesive layer 33.

Convex portion 32 formed on one side of colored transparent film 31
In the illustrated example, these are semicircular in side view and are formed in the width direction at predetermined intervals. Height h of the convex portion 32
is about 2 to 20 μm, preferably 5 to 10 μm, the width l of the convex portion 32 is about 500 μ to 1000 μm, and the interval between the convex portions 32.32 is about 2 to 20 m, preferably 5 to Low. is good. Note that the shape of the convex portion 32 is not limited to a semicircular shape, but may be any shape such as a rectangle, a triangle, or a trapezoid.

The adhesive layer 33 is made of a white acrylic adhesive containing titanium oxide, and is formed to have a thickness of, for example, about 30 to 50 μm, preferably 40 μm. this is,
This is to prevent a decrease in tackiness due to increasing the content of titanium oxide to increase hiding power and white color. Note that the adhesive layer 33 is not limited to white, and may be of any color as long as it has a high light reflectance, has a strong contrast with the color of the colored transparent film 31, and is bright.

A release paper 35 is attached to the adhesive layer 33.

The decorative adhesive sheet 30 configured in this way has a release paper 3
By peeling off the adhesive layer 33 and pasting the adhesive layer 33 on the wall or floor, the wall or floor can be decorated. Here, since the decorative adhesive sheet 30 has a convex part 32 formed on one side of the colored transparent film 31, the thickness of the colored transparent layer becomes thicker in the convex part 32, and a dark color appears, and other A light color appears in some areas. By exposing the dark colored portions using the convex portions 32 in this manner, a striped pattern can be drawn on the surface of the decorative adhesive sheet 30.

For example, when the convex portions 32 are formed in the width direction using a red colored transparent film 31 as in this example, a deep red color appears in the width direction where the convex portions 32 are located, and pale red appears in other parts. As a result, a dark red striped pattern appears on the surface of the decorative adhesive sheet 30. That is, by changing the shape of the convex portion 32, a pattern corresponding to the shape can be appropriately drawn.

Next, a case in which the decorative pressure-sensitive adhesive sheet 30 configured as described above is manufactured by a sol casting method will be briefly described.

As shown in FIG. 6, process paper 42 wound around a roll 41
is supplied between the roller 43 and a comma coater 45 provided above the roller 43, and a colored transparent vinyl chloride resin sol 46 containing a pigment of an appropriate color is supplied by the comma coater 45 from before the comma coater 45. is applied onto the process paper 42. At this time, by slightly vibrating the comma coater 45, semicircular convex portions 32 are formed on the upper surface of the vinyl chloride resin sol 46 coated on the processing paper 42 at regular intervals in the width direction perpendicular to the feeding direction. be done. The slight vibration of the comma coater 45 can be realized by adjusting the resistance force accompanying the coating of the vinyl chloride resin sol 46 and the fixing strength of the comma coater 45. By heating and drying the vinyl chloride resin sol 46 in which the convex portions 32 are formed to solidify it, a colored transparent film 31 is formed on the processing paper 42 . Next, as shown in FIG. 7, the colored transparent film 31 is placed on the process paper 42.
The white adhesive layer 33 and release paper 35 are laminated on the colored transparent film 31 by rollers 47 and 48, and the process paper 42 is peeled off from the thus laminated film, as shown in FIG. A decorative adhesive sheet 30 is molded.

Note that the release paper 35 is not necessarily required. In other words, if the surface of the colored transparent film 31 and the adhesive layer 33 have the required releasability when rolled up into a roll without a release paper like a normal tape and are used, the peeling will be possible. Paper 35 is not necessary.

(Effects of the Invention) As described above, according to the present invention, an uneven portion is formed on one side of a colored transparent film of a decorative pressure-sensitive adhesive sheet, and the surface on which the uneven portion is formed has a light reflectance. By laminating a highly reflective film and adhesive layer, the thickness of the color transparent layer becomes thicker in the convex parts, resulting in a dark color, and a lighter color appears in other parts. In this way, by appropriately forming the uneven portions to create shading of color, an appropriate pattern can be drawn on the surface of the decorative pressure-sensitive adhesive sheet, and a highly decorative decorative pressure-sensitive adhesive sheet can be provided.

In addition, by slightly vibrating the comma coater, a convex portion is formed on the top surface of the colored transparent film, so the operator can constantly
There is no need to carefully monitor the process, it can be automated, and there is no need for additional equipment.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the structure of the decorative adhesive sheet according to claim 1, FIGS. 2 to 4 are diagrams explaining the manufacturing order of this decorative adhesive sheet, and FIG. 5 is the decoration according to claim 2. FIGS. 6 and 7 are diagrams showing the structure of the decorative adhesive sheet, and are diagrams illustrating the manufacturing order of this decorative adhesive sheet. 10.30 Decorative adhesive sheet 11.31 Colored transparent film 12.32 Convex portion (uneven portion) Work 3 Reflective film 15.33 Adhesive layer 16.35 ...Release paper patent applicant Sekisui Chemical Co., Ltd. Representative Hiroshi 1) Kaoru Figure 1 Figure 2 Figure 3 Figure 4 Fi:J Figure 5 Figure 6 Inkstone Figure 7

Claims (1)

[Claims] 1) An uneven portion is formed on one surface of a colored transparent film,
A decorative pressure-sensitive adhesive sheet characterized in that a reflective film with high light reflectance is laminated on the surface on which the uneven portions are formed, and an adhesive layer is further laminated on the reflective film. 2) An uneven portion is formed on one side of the colored transparent film,
A decorative pressure-sensitive adhesive sheet characterized in that a pressure-sensitive adhesive layer with high light reflectance is laminated on the surface on which the uneven portions are formed. 3) A method in which a colored transparent resin sol is supplied onto process paper via a comma coater to form a colored transparent film by a sol casting method, in which the comma coater is slightly vibrated to form convex portions at appropriate intervals on the upper surface of the colored transparent film. Then, a reflective film with high light reflectance and an adhesive layer are sequentially formed on the top surface of the colored transparent film, or an adhesive layer with high light reflectance is formed on the top surface of the colored transparent film. The method for producing a decorative pressure-sensitive adhesive sheet according to claim 1 or 2.