JPH0755600B2 - Decorative display panel and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a panel for decorative display which has different optical characteristics (transmittance, reflectance, hue, etc.) when viewed from the front side and the back side. The present invention relates to a method for manufacturing the above panel, in which electrostatic recording is used as part of the manufacturing process in forming the decorative display panel.

(Prior Art) Conventionally, when forming a decorative display having different optical characteristics on the front and back, there is a method of manufacturing by a printing method, a transfer method, an etching method, or the like. For example, in the case of a printing method, a fine pattern resin, a masking layer, and a colored layer for color display are sequentially printed and laminated on the substrate, and the resin is peeled off from the substrate by a chemical or mechanical treatment. It was formed by peeling the resin from the substrate. In particular, in a printing method such as silk screen or gravure, a plate is required to form all layers, and for example, when it is desired to color many colors, plate making is required for all colors. Further, the increase in the number of times of plate making complicates the manufacturing process, increases the time required for manufacturing, and increases the cost.

(Object of the Invention) The decorative display panel of the present invention is a plateless system using electrostatic recording when color display is performed on the entire surface or a part of the base material for the panel, eliminating the complexity of plate making for each color display. The purpose is to speed up the manufacturing process and reduce the price.

(Structure of the Invention) The present invention comprises a transparent or semi-transparent substrate having at least a conductive layer in a fine pattern, a recording layer having a latent image charge and having an insulating property on the upper surface thereof, and an entire surface on the upper surface or Partly provided with a colored layer by electrostatic recording, or a colored layer, a layer having conductivity, a recording layer having an insulating property for holding a latent image charge on the upper part thereof, and an electrostatic recording on the whole or a part of the upper part. The decorative display panel is characterized in that the colored layers according to (3) are laminated, each layer is laminated without misregistration, and the front and back surfaces of the substrate have different optical characteristics.

Further, the present invention provides a transparent or semitransparent substrate on which a substrate having at least a conductive layer, a latent image charge, and an insulating property are formed over the entire surface of a resin layer having no adhesiveness with the substrate formed in a fine pattern. After forming a recording layer having this in this order, or a colored layer, a layer having conductivity, and a recording layer having an insulating property that retains latent image charges in this order, the entire surface or one surface of the recording layer is formed by gas discharge in a non-contact state. The method for producing a decorative display panel is characterized in that the substrate and the resin layer are separated by a chemical or mechanical treatment after providing a colored layer by electrostatic recording on the part.

That is, the present invention is a transparent or semi-transparent substrate, a negative such as halftone dots, a lattice, a line, and a grain formed by using a resin having a low adhesive force to the substrate, or a positive plain net-like fine pattern. A resin layer, a conductive layer having adhesiveness to the substrate and having conductivity, and a recording layer having adhesiveness to the conductive layer and having white or bright to dark latent image charge and insulating property And a second colored layer on which a character, a design, a pattern, etc., which is applied by electrostatic recording to the entire surface or a part thereof is displayed, and which has a low adhesive force to the substrate by the chemical or mechanical treatment. The decorative display panel has different optical characteristics on the front and back sides obtained by peeling the resin.

In addition, the present invention is a transparent or semi-transparent substrate, a negative such as halftone dots, a lattice, a line, and a grain formed by using a resin having a low adhesive strength to the substrate, or a positive plain net-like fine pattern. A resin layer, a first colored layer having an adhesive force to the substrate and displaying characters, a pattern, a pattern, etc .; a conductive layer having an adhesive force to the first colored layer and having conductivity; A recording layer having a white or light or dark color latent image charge having an adhesive force to the layer and having an insulating property, and a character, a pattern, a pattern, etc. to be applied by electrostatic recording on all or a part thereof are displayed. A decorative display panel comprising a second colored layer and having different optical characteristics on the front and back sides obtained by peeling the substrate and the resin having a low adhesive force to the substrate by a chemical or mechanical treatment.

The present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of the present invention, in which a binder having a low adhesiveness to the substrate, such as polyvinyl alcohol or a relatively small amount of a binder component or a relatively large amount of an extender pigment component, is provided on a substrate 1 such as polyethylene terephthalate. The fragile ink is used to form the halftone dot pattern 2 of the negative plain unwoven mesh by the silk screen method. On the substrate 1 on which the pattern 2 is formed, an ink having an adhesive property with the substrate 1, for example, an ink using conductive carbon black as a pigment in a varnish of polyester ink is used as a pigment by a silk screen method on the entire surface of the pattern 2. Apply. This is the conductive layer 3. Then, a white or light color ink (blue, green, yellow, a mixed color ink of white and red, etc.) on the conductive layer 3 is applied to the entire surface of the conductive layer 3 by a silk screen method. The ink has an adhesive force to the conductive layer 3,
Resin having latent image charge and insulating property, for example, vinyl chloride vinyl acetate copolymer resin, vinyl chloride resin, saturated or unsaturated polyester resin, alkyd resin, polybutyral resin, acrylic acid resin, methacrylic acid resin, The recording layer 4 is made of a maleic acid resin, an epoxy resin or the like and a pigment such as titanium oxide, calcium oxide or magnesium oxide. The recording layer 4 may have a two-layer structure or a laminated structure of more than two layers, and may have different colors (for example, a white layer and a light color layer) as long as the same resin is used. Next, solid or characters of one or several colors, characters, patterns, etc. are applied to the entire surface or a part thereof by electrostatic recording. This is the second colored layer 5. In this way, the peeling support layer 6 on which the peeling support layer 6 is provided after the second colored layer 5 is formed is provided by sticking an ordinary cellophane adhesive tape onto the substrate 1. Further, the peeling support layer 6 may be provided by a silk screen method using a transparent or colored dried ink having a tensile strength.

In this way, a decorative display panel having the laminated structure of FIG. 1 is formed. When the decorative display panel of the present invention is used, the peeling support layer 6 lifts off the fine pattern 2 portion from the substrate 1, and FIG. 2 is a side view thereof. By lifting off the peeling support layer 6, the fine pattern 2 is peeled from the substrate 1, and the conductive layer 3, the recording layer 4, and the second colored layer 5 remain on the substrate 1. In this way, the decorative display panel can be formed.

In this decorative display panel, as shown in FIG. 2, a fine display pattern 7 having a negative relationship with the fine pattern 2 is formed,
The transparent portion 8 is formed at the lifted-off portion.

FIG. 3 is an embodiment of the present invention, and like FIG. 1, on a substrate 1 made of polyethylene terephthalate or the like, a binder having low adhesiveness to the substrate, for example, polyvinyl alcohol or a binder component is relatively small. Alternatively, the relatively weak brittleness of the extender pigment component is formed by the ink, and the halftone dot pattern 2 of the negative plain mesh is formed by the silk screen method. On the substrate 1 on which the pattern 2 is formed, with an ink having an adhesive property with the substrate 1, for example, a polyester ink,
Print characters or designs of one or more colors. This is the first colored layer 9. Next, on this, the substrate 1 and the coloring layer 9
An undercoat layer 10 is provided by a silk screen method with an ink that has adhesiveness and is composed of an insulating resin like the recording layer 4. The undercoat layer 10 may be colored,
A color that does not affect the first colored layer 9 is desirable. Further, the undercoat layer 10 is a layer provided for alleviating the unevenness caused by the first colored layer 9, and is not necessary if, for example, the colored layer 9 is a solid layer provided on the entire surface of the substrate 1. An ink having adhesiveness with the colored layer 9 or the undercoat layer 10 on the substrate 1 on which the colored layer 9 or the undercoat layer 10 is formed, for example, a pattern 2 with an ink using conductive carbon black as a pigment in a varnish of polyester ink It is applied by the silk screen method on the entire surface. This is the conductive layer 3. Then, a white or bright color ink (blue, green, yellow, mixed color ink of white and red, etc.) is applied on the entire surface of the conductive layer 3 in a solid form by a silk screen method.
The ink has adhesiveness to the conductive layer 3 and retains latent image charge and has an insulating property, for example, vinyl chloride vinyl acetate copolymer resin, vinyl chloride resin, saturated or unsaturated polyester resin, alkyd resin, Polybutyral resin,
Acrylic acid type resin, methacrylic acid type resin, maleic acid type resin, epoxy resin and the like and pigments such as titanium oxide and calcium oxide magnesium oxide. This is the recording layer 4. The recording layer 4 may have a two-layer structure or a laminated structure of more than two layers, and may have different colors (for example, a white layer and a light color layer) as long as the same resin is used. Next, solid or characters of one or several colors, characters, patterns, etc. are applied to the entire surface or a part thereof by electrostatic recording. This is used as the second colored layer 5
After the colored layer 5 is formed, the peeling support layer 6 is provided. The peeling support layer 6 is provided by sticking an ordinary cellophane adhesive tape on the substrate 1. The release support layer 6 may be provided by a silk screen method using a transparent or colored ink having a tensile strength after drying.

In this way, a decorative display panel having the laminated structure shown in FIG. 3 is formed.

When the decorative display panel of the present invention is used, the peeling support layer 6 lifts off the fine pattern 2 portion from the substrate 1, and FIG. 2 is a side view thereof. Release support layer 6
The fine pattern 2 is formed on the substrate 1 by lifting off
The first colored layer 9, the undercoat layer 10, the conductive layer 3, the recording layer 4, and the second colored layer 5 remain on the substrate 1 after peeling. In this way, the decorative display panel can be formed.

In this decorative display panel, as shown in FIG. 4, a negative display fine display pattern 7 is formed with respect to the fine pattern 2.
The transparent portion 8 is formed at the lifted-off portion.

(Operation of the Invention) The present invention is obtained by laminating the conductive layer 3 on the substrate 1 via the recording layer 4 and the second colored layer provided on the entire surface or a part of the back side thereof by the electrostatic recording method, or the conductive layer 3 and A fragile ink is formed on the substrate 1 of a laminated structure in which a first colored layer and a second colored layer provided on the entire surface or a part of the back side of the first colored layer via the recording layer 4 are provided by electrostatic recording. The negative or positive fine pattern layer 2 can be lifted off to obtain a display panel on which a fine display pattern 7 having an opaque portion having a negative relationship with the fine pattern is formed. Positioning operations such as front and back printing and registration of fine pattern layers are not required.

It is actually used for partitions such as exhibition halls, stores, offices, advertisement display panels, decorative windows, road signs, etc. By providing the second colored layer in whole or in part by electrostatic recording method For example, when using it as a decorative window at a food and drink chain point, if you configure in advance the second color layer with a common design, information unique to each store, such as each store name, phone number, and address, can be immediately used as a single item. It can be created with, and can be applied to tickets, cards, etc. in various ways.

(Effects of the Invention) In the decorative display panel of the present invention, the first coloring layer and the second coloring layer are separately viewed from the front and back sides by the first coloring layer and the second coloring layer laminated on the transparent or semitransparent substrate. In addition, it is difficult to confirm the presence of fine patterns when viewed from a distance, and it can be viewed as a display panel on which transparent letters and pictures are printed on a transparent semitransparent substrate. The decorative display panel of the present invention exhibits a novel effect as various partitions, decorative windows, and the like. In addition, such a decorative display panel of the present invention has different decorative display effects on the front and back sides when observing the other side from one side of the panel through a transparent portion such as a mesh or dot shape of the panel. However, for that purpose, it is necessary that the colored layer applied to the other side is hidden. Since the method of the present invention uses the electrostatic recording system, the conductive layer or the recording layer can function as the above-mentioned concealing layer, and therefore it is not necessary to newly provide a concealing layer. Further, since the manufacturing is carried out by the lift-off method, it is extremely easy to produce by simply lifting off the ink which is sequentially laminated on the substrate only by the printing method or the electrostatic recording method.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the decorative display panel of the present invention,
2 is a cross-sectional view showing a state in which FIG. 1 is lifted off to prepare a display panel, FIG. 3 is a cross-sectional view of another embodiment of the decorative display panel of the present invention, and FIG. 4 is a lift-off of FIG. FIG. 6 is a cross-sectional view of a state in which it is created as a display panel. 1 ... Substrate, 2 ... Fine pattern, 3 ... Conductive layer, 4 ...
... Recording layer, 5 ... Second colored layer, 6 ... Peeling support layer, 7 ...
... Fine display pattern, 8 ... Transparent portion, 9 ... First colored layer, 10 ... Undercoat layer

Claims (2)

[Claims] 1. A transparent or semi-transparent substrate having at least a conductive layer in a fine pattern, a recording layer having an insulating property for holding a latent image charge thereon, and an electrostatic charge on the entire surface or a part thereof. Provided with a colored layer by recording, or a colored layer,
A substrate having a conductive layer, a recording layer having an insulating property for holding a latent image charge thereon, and a colored layer formed by electrostatic recording on the entire surface or a part of the upper layer, each layer being laminated without misregistration and a substrate A decorative display panel characterized by different optical characteristics on the front and back. 2. A transparent or semi-transparent substrate having a fine pattern formed on the resin layer having no adhesiveness to the substrate and having at least a conductive layer and an insulating property for holding latent image charges over the entire surface of the resin layer. The recording layer is formed in this order, or a colored layer, a conductive layer, and a recording layer having a latent image charge holding and insulating property are formed in this order, and then the whole or a part of the recording layer is formed by gas discharge in a non-contact state. A method for manufacturing a decorative display panel, comprising: providing a colored layer by electrostatic recording on the substrate, and then peeling the resin layer from the substrate by a chemical or mechanical treatment.