JP3208075U - Exhibition panel base plate - Google Patents

Abstract

An object of the present invention is to provide an exhibition panel base plate that can be easily and neatly pasted with a printed matter in a store or company that does not have special equipment for bonding the printed matter and the display panel base plate. In an exhibition panel base plate in which an adhesive layer 2 is formed on one or both sides of a plate-like substrate 1 and a release paper is further laminated thereon, an average thickness d of the adhesive layer 2 is 25 to 25. 1 to 3 parts by mass of non-adhesive fine particles 4 having an average particle diameter M of 30 to 70 μm with respect to 100 parts by mass of the adhesive, and the average thickness d of the adhesive layer and the average of non-adhesive fine particles The condition that the value of the particle diameter M is d <M is satisfied. [Selection] Figure 2

Description

  The present invention relates to a display panel to which advertising / advertisement paper is pasted.

  When exhibiting sheet-like exhibits made up of printed materials such as digitally output photographs, advertisements, and posters, it is widely practiced to attach the exhibits to a base plate to form an exhibition panel. 2. Description of the Related Art Conventionally, as a display panel base plate to which such objects to be displayed are attached, a plate-like polystyrene extruded foam or a veneer plate coated with an adhesive is often used. In particular, those using polystyrene foam as a base plate have been favorably used in recent years due to their light weight and workability (see, for example, Patent Document 1 and Patent Document 2).

  An exhibition panel that has exhibition objects such as exhibition photos and posters affixed to such a base plate, the photos and posters are affixed neatly without any surface blistering or deviation from the base plate due to its use Is required. Therefore, when attaching photographs or posters to the base plate, pay close attention not to cause misalignment of photographs or posters due to poor positioning, and to prevent air from being trapped in the adhesive. It was necessary, and skill was required for the pasting.

JP 2005-265997 A JP 2008-139634 A

  However, the display board shown in the above-mentioned conventional patent document 1 has a problem that it is difficult to align the printed material and the mount, causing a shift or wrinkles, and deteriorating the beauty.

  Moreover, in the display panel base plate shown in the above-mentioned conventional Patent Document 2, when a printed product and the display panel base plate are bonded together, a heating roll is required. There was a problem that it could not be pasted.

  The purpose of the present invention is to provide a display panel base plate that can be printed easily and easily without wrinkles in stores and companies that do not have special equipment for bonding the printed material and display panel base plate. It is in.

  As shown in FIGS. 1 and 2, the first aspect of the present invention is an exhibition in which an adhesive layer 2 is formed on one or both sides of a plate-like substrate 1, and a release paper 3 is laminated thereon. In the panel base plate 10, 1 to 3 parts by mass of non-adhesive fine particles 4 having an average thickness d of the adhesive layer 2 of 25 to 50 μm and an average particle diameter M of 30 to 70 μm with respect to 100 parts by mass of the adhesive. And the condition that the value of the average thickness d of the adhesive layer and the value of the average particle diameter M of the non-adhesive fine particles satisfy d <M is satisfied.

  In the display panel base plate according to the first aspect of the present invention, the adhesive layer 2 is formed on one side or both sides of the plate-like substrate 1, and the average thickness d of the adhesive layer 2 is 25 to 50 μm and the average particle diameter M 1 to 3 parts by mass of 30 to 70 μm of non-adhesive fine particles 4 with respect to 100 parts by mass of the adhesive, and the average thickness d of the adhesive layer and the average particle diameter M of the non-adhesive fine particles Since the value is d <M, as shown in FIG. 3, when adhering the adherend 5 such as a poster or printed matter, the contact area with the adhesive layer becomes small, and repositioning is performed until a desired position is obtained. Easy to do. By applying more force, the adherend surface and the adhesive surface can be brought into close contact with each other, so that it can be neatly bonded without requiring skill, and the loss due to a mistake in bonding can be reduced. it can.

It is a cross-sectional block diagram of the base plate for display panels of this invention. It is sectional drawing of the adhesion layer of the base plate for display panels of this invention. It is sectional drawing of the state which stuck the to-be-adhered material to the base plate for display panels of this invention.

  Next, embodiments for carrying out the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the display panel base plate 10 of the present invention has an adhesive layer 2 formed on one or both sides of a plate-like substrate 1, and a release paper 3 is further laminated thereon. Thus, the pressure-sensitive adhesive layer 2 contains non-sticky fine particles 4. Moreover, as shown in FIG. 3, when bonding the adherends 5 such as posters and printed materials, the contact area with the adhesive layer is reduced, and repositioning can be facilitated until a desired position is obtained. By applying more force, the adherend surface and the adhesive surface can be brought into close contact with each other, so that it can be neatly bonded without requiring skill, and the loss due to a mistake in bonding can be reduced. it can.

  The plate-like substrate 1 may be a thermoplastic resin plate-like foam or a laminate of sheet-like surface materials on both surfaces of a thermoplastic resin plate-like foam with an adhesive interposed therebetween, and the latter form is warped. A difficult display panel base plate is obtained.

  The thermoplastic resin plate-like foam used for the plate-like base material 1 can be used without particular limitation as long as a base material mainly composed of a thermoplastic resin is foamed by a chemical or physical method. Specifically, polypropylene, polyethylene, ethylene-vinyl acetate copolymer, or polyolefin resin, polyester resin, polyvinyl chloride, ABS, polystyrene, polyacrylonitrile, polyurethane formed by appropriately mixing two or more of these, Melamine resins, phenol resins, and the like are suitable, but polyolefin resins are particularly preferred from the viewpoints of lightness, surface smoothness, and environmental properties of the target laminate. The foaming ratio of the resin is practically 5 to 20 times, and the thickness is suitably 1 to 20 mm in view of processability and cost.

  As the adhesive layer 2, a rubber-based or acrylic resin-based adhesive can be used. The main rubber raw material is natural rubber or styrene / butadiene rubber. In natural rubber, a rosin resin, a plasticizer and the like are added, and coating is usually performed using normal hexane as a solvent. When styrene / butadiene rubber is the main raw material, it is melted and applied. In the acrylic resin system, it is made by polymerizing acrylic monomers such as 2-ethylhexyl acrylate, butyl acrylate, ethyl acrylate, acrylic acid, and β-hydroxyethyl acrylate. Depending on the polymerization method, an organic solvent such as ethyl acetate or toluene can be used, or an emulsion type polymerized while emulsifying in water using a surfactant can be used.

  Non-adhesive fine particles 4 added to the adhesive include acrylic resin, silicon resin, urethane resin, vinyl acetate resin, Teflon resin, polyamide resin, vinyl chloride resin, styrene resin, phenol resin, epoxy resin, styrene-butadiene. -Organic substances such as styrene block copolymer resin, styrene-butylene-styrene block copolymer resin, styrene-isoprene-styrene block copolymer resin, or inorganic substances such as silica, calcium carbonate and glass.

  As shown in FIG. 2, the non-adhesive fine particles 4 preferably have an average particle diameter d of 30 to 70 μm, the thickness M of the adhesive layer is preferably 25 to 50 μm, and the average thickness d of the adhesive layer It is desirable that the value and the value of the average particle diameter M of the non-adhesive fine particles satisfy d <M. Here, the value of the average thickness d of the pressure-sensitive adhesive layer and the value of the average particle diameter M of the non-sticky fine particles are d <M. When d ≧ M, This is because the contact area becomes large and position adjustment becomes difficult. In addition, the reason why the average thickness d of the adhesive layer is limited to 25 to 50 μm is that when it is less than 25 μm, there is a problem that the adhesion between the display panel base plate and the adherend such as a poster becomes insufficient, and 50 μm If it exceeds, the surface of the coating film of the pressure-sensitive adhesive layer is covered in the drying step, and the water inside the coating film is poorly drained and blistering occurs. Further, the average particle diameter M is limited to the range of 30 to 70 μm because when the adherend is pasted, the contact area with the adhesive layer becomes large when pasting the adherend, and the position adjustment becomes difficult. This is because it is difficult to bring the wearing surface and the adhesive surface into close contact with each other.

  The non-adhesive fine particles 4 contained in the adhesive layer 2 are preferably 1 to 3 parts by mass, and if the content is less than 1 part by mass, the contact area with the adhesive layer increases when the adherend is bonded. Adjustment becomes difficult, and if it exceeds 3 parts by mass, the adherend surface and the adhesive surface cannot be brought into close contact with each other, which causes peeling of the adherend.

  As a manufacturing method of the display panel base plate 10, there is a method in which the adhesive layer 2 is provided on the release paper 3, the adhesive layer 2 and the plate-like substrate 1 are overlapped, and pressure-bonded with a press roll or the like, or a plate-like substrate There is a method in which the adhesive layer 2 is directly formed on 1 and bonded to a release paper.

  Equipment for providing the adhesive layer 2 includes air knife coater, blade coater, bar coater, roll coater, slot nozzle, slot die, rotary screen printer, gravure coater, offset gravure coater, hot melt wheel, spiral spray, etc. The type and application amount of the pressure-sensitive adhesive, the necessity to give a pattern to the applied pressure-sensitive adhesive, and the like may be appropriately selected according to the application.

  An embodiment of the display panel base plate 10 according to the present invention will be specifically described together with a comparative example.

<Example 1>
As an adhesive, 100 parts by mass of an emulsion-type acrylic adhesive (manufactured by Koyo Sangyo Co., Ltd .: KR-159), a crosslinked polymethyl methacrylate having an average particle diameter of 30 μm as non-adhesive fine particles 4 (manufactured by Sekisui Plastics Co., Ltd.) : Technopolymer MBX-30) was added and mixed to prepare a pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition is coated on the entire surface of one side of the release paper 3 so that the average thickness is 25 μm (in a dry state), and is kept in a drying furnace at a temperature of 100 ° C. for 1 minute for drying. The display panel base plate 10 was obtained by forming the layer 2 and further affixing it to the plate-like base material 1 (goo! Panel PRO manufactured by Koyo Sangyo Co., Ltd.). This display panel base plate 10 was taken as Example 1.

<Example 2>
An ethylene-vinyl acetate copolymer resin powder (manufactured by Sumika Chemtex Co., Ltd .: RP-100S) having an average particle size of 70 μm was used as the non-adhesive fine particles, and the average thickness of the pressure-sensitive adhesive composition was 50 μm (dry state). Except that, an exhibition panel base plate was obtained in the same manner as in Example 1. This display panel base plate was referred to as Example 2.

<Example 3>
1 part by mass of cross-linked polymethyl methacrylate having an average particle size of 50 μm (manufactured by Sekisui Plastics Co., Ltd .: Technopolymer MBX-50) is added as non-adhesive fine particles to 100 parts by mass of the adhesive and mixed. A base plate for an exhibition panel was obtained in the same manner as in Example 1 except that the average thickness of the pressure-sensitive adhesive composition was 40 μm (dry state). This display panel base plate was referred to as Example 3.
<Example 4>
As non-adhesive fine particles, 3 parts by mass of cross-linked polymethyl methacrylate having an average particle diameter of 50 μm (manufactured by Sekisui Plastics Co., Ltd .: Technopolymer MBX-50) is added and mixed with respect to 100 parts by mass of the adhesive. A base plate for an exhibition panel was obtained in the same manner as in Example 1 except that the average thickness of the pressure-sensitive adhesive composition was 40 μm (dry state). This display panel base plate was referred to as Example 4.

<Comparative Example 1>
A display panel base plate was obtained in the same manner as in Example 1 except that the average thickness of the pressure-sensitive adhesive composition was 20 μm (dry state). This display panel base plate was referred to as Comparative Example 1.
<Comparative example 2>
An ethylene-vinyl acetate copolymer resin powder (manufactured by Sumika Chemtex Co., Ltd .: RP-100S) having an average particle diameter of 70 μm was used as the non-adhesive fine particles, and the average thickness of the pressure-sensitive adhesive composition was 60 μm (dry state). Except that, the display panel base plate was obtained in the same manner as in Example 1. This display panel base plate was referred to as Comparative Example 2.

<Comparative Example 3>
Other than using cross-linked polymethyl methacrylate having an average particle size of 20 μm as non-adhesive fine particles (manufactured by Sekisui Plastics Co., Ltd .: Technopolymer MBX-20), the average thickness of the pressure-sensitive adhesive composition was 20 μm (dry state). Obtained the display panel base plate in the same manner as in Example 1. This display panel base plate was referred to as Comparative Example 3.
<Comparative example 4>
Other than using cross-linked polymethyl methacrylate having an average particle size of 100 μm as non-adhesive fine particles (manufactured by Sekisui Plastics Co., Ltd .: Technopolymer MBX-100), the average thickness of the pressure-sensitive adhesive composition is 50 μm (dry state). Obtained the display panel base plate in the same manner as in Example 1. This display panel base plate was referred to as Comparative Example 4.

<Comparative Example 5>
A display panel base plate was obtained in the same manner as in Example 1 except that 0.5 part by mass of non-adhesive fine particles was added to and mixed with 100 parts by mass of the adhesive. This display panel base plate was referred to as Comparative Example 5.
<Comparative Example 6>
A display panel base plate was obtained in the same manner as in Example 1 except that 4 parts by mass of non-adhesive fine particles were added to 100 parts by mass of the adhesive and mixed. This display panel base plate was referred to as Comparative Example 6.

<Comparative test 1 and evaluation>
About the display panel base plates of Examples 1 to 4 and Comparative Examples 1 to 6, an evaluation test of drying property, position adjustment property, and adhesiveness was performed. Drying was performed as follows. The pressure-sensitive adhesive composition was applied to a specified thickness and left in a dryer at 100 ° C. for 1 minute to check whether the water content of the coating film was less than 12%. When the moisture content of the coating film was less than 12%, it was rated as “◯”, and when it was 12% or more, it was marked as “x”.

  The position adjustability evaluation test was performed as follows. The release paper on the display panel base plate was peeled off, and the adherend was placed in contact with the adhesive layer. Coated paper was used as the adherend. At that time, it was confirmed whether the adherend moved in parallel on the surface of the adhesive layer. When the adherend was able to move in parallel, “◯” was indicated, and when the adherend was stuck to the adhesive surface, “X” was assigned.

  The stickiness evaluation test was performed as follows. Coated paper as an adherend was stuck to the display panel base plate at a constant pressure and cured for 24 hours. Thereafter, the display panel base plate with the adherend was left for 12 hours under an environment of 40 ° C. and 80% humidity and for 12 hours under an environment of 40 ° C. and 25% humidity, and an environmental test was conducted. If there was no abnormality such as blistering or peeling on the surface of the adherend, “◯” was given, and if an abnormality was found, “X” was given.

  As a comprehensive judgment, in the evaluation tests of the above three items, “◯” was given for all items, and “x” was given for “x” for one item. The results are shown in Table 1.

  The display panel base plate 10 of the present invention can be effectively used as a support for a display that can be easily attached to a wall or the like while being able to easily attach printed matter or the like.

DESCRIPTION OF SYMBOLS 1 Plate-like base material 2 Adhesive layer 3 Release paper 4 Non-adhesive fine particle 5 Adhering material 10 Display panel base plate

Claims (1)

  In a display panel base plate in which an adhesive layer is formed on one or both sides of a plate-like substrate, and a release paper is further laminated thereon, the average thickness d of the adhesive layer is 25 to 50 μm and the average particle diameter 1 to 3 parts by mass of non-adhesive fine particles having M of 30 to 70 μm with respect to 100 parts by mass of the adhesive, and the average thickness d of the adhesive layer and the average particle diameter M of the non-adhesive fine particles A display panel base plate characterized in that a value satisfies a condition of d <M.

Images