JPS5855965A - Manufacture of display panel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a method of manufacturing an exhibition panel. To.

A weather-resistant, beautiful, and sharp display panel? This article relates to a method for manufacturing display panels that is highly efficient.

Exhibition panels consisting of transparencies that are illuminated from the back side with fluorescent lights through diffusers for purposes such as advertising and interior decoration are identical in nature (many of them are manufactured, and 1st person! Because eye-catching beauty is required, those who use color photography are made of flannel! - In order to do so, paintings, letters, etc. (hereinafter simply ``one sheet'') are printed on the surface of the exhibition panel using a photochemical method. It is well known that display panels manufactured by photographic methods are expensive and have poor weather resistance. The color is fragile and fades quickly. Advertising display panels are illuminated from the back with fluorescent lights, so the color fades easily.

It is difficult to print on plastic plates such as acrylic plates or glass plates, which are usually used as substrates for exhibition strip panels, especially those installed outdoors, and it is not possible to obtain satisfactory prints using the M4 stamp. .

SUMMARY OF THE INVENTION Therefore, the object of the present invention is to create a method for manufacturing an exhibition panel in which a flannel board has good weather resistance and very little fading, and is capable of forming a sharp and beautiful painting board using a simple process. 'Y: There is a K to serve WIk.

In order to achieve the above purpose, one-shot #i4 includes a step of forming a release layer t on one side of the printing paper and a transparent ink-carrying layer on top of it, and a process of forming a transparent ink-carrying layer on top of this ink-carrying layer with printing ink. A multiple printing process in which a plurality of single layer NIj are stacked and attached in a state where they are aligned with each other, an adhesion process in which the panel substrate and printing paper are bonded to each other while facing the panel substrate, and the back side of the printing paper is The step of infiltrating the stripping liquid to swell and dissolve the peeling #11Y, and leaving the l1ki image layer and ink carrying layer t panel substrate on the printing paper Y
It is characterized by the process and features of @#.

An embodiment of the present invention will be described below with reference to Drawing Y.

In FIG. 1, reference numeral 1 indicates a printing paper, and a release layer 2 is first formed on one side of the printing paper. The material for this release layer 2 is 1, for example, partially saponified polyvinyl alcohol with a low degree of polymerization (hereinafter simply KP), which is coated on the back of stamps and stamps.
Water characteristics such as VA)! '4＠＠material is low cost (optimal, its ft[ is polyvinyl methyl ether, a copolymer of polyvinyl methyl ether and maleic anhydride,
Alternatively, polyacrylamide and copolymers are suitable.

The above peeling 1112 is formed on the printing paper 1.

If it is printing paper or sheet-like paper, you can apply it with a PVA solution using a spray gun or apply it with a brush, and if it is a long piece of paper rolled into a coil, as described later. , it can be applied continuously with a roll.

Next, as shown in FIG. 2, a transparent ink carrying layer (hereinafter simply referred to as an ink carrying layer) 3v is formed on the peeling layer 2. When the release layer 2 is a rewetting adhesive layer, the material of the ink carrying layer 3 is generally a so-called transparent coating material. This transparent coating material generally gives paper a strong gloss and improves printing transparency and waterproofness.
149 11-.

There are synthetic resin emulsions and synthetic resin liquids dissolved in organic solvents.

Since the above-mentioned nitrocellulose lacquer dries quickly at room temperature, it is convenient to apply K to sheets of paper by spraying or brushing. In addition, the synthetic resins commonly used as synthetic resin emulsions include polyvinyl chloride, polyvinylidene chloride, polyacrylic acid esters, and styrene copolymer.
Add inorganic substances and natural polymers.

Synthetic resin solutions mixed with organic solvents KfIj, including nitrocellulose lacquers, include, for example, polyethylene resins with a medium degree of polymerization mixed with toluene-based aromatic hydrocarbons tK#.

Any of the coating materials and coatings used for the transparent coating of cotton described above can be used as they are in forming the ink carrying layer 3 of the present invention.

In addition, when the printing paper is long and rolled up, as shown in FIG. In tank 4, a coating roll SK coats one side of the printing paper with PVAm liquid.

A release layer Y is formed using a drying device 6V, for example, a nitro-7-lulose lacquer sgv is applied to the release layer 2117, and an etrocellulose lacquer solution is applied onto the release layer using an applicator roll 5. Blow it out to flatten it and dry it at the same time! If the ink carrying layer is formed quickly, the release layer and the ink carrying layer can be formed continuously and efficiently. The obtained single layer is multi-layer IJ.
-Print in a state that matches. It's true.

First, as shown in FIG. 4, a layer 9 (hereinafter simply referred to as a layer) of printing ink having an ilm formed thereon is deposited on the ink carrying layer 3 by, for example, planographic printing or gravure printing. . For example, in the case of four-color printing, this drawing layer 9 is formed by four plates, and is shown in FIG.
The process of forming a layer image [11v] is no different from a normal printing process and can be carried out using a normal printing machine. In addition, in order to make drawings 11 clearer, in Figure 4 and other figures, it is assumed that the 11 sides of the layer 9 are smooth and the thickness of the ink layer is uniform. Needless to say, the irregularities are formed by minute columns of ink.

Next, on top of the painting layer 9 shown in FIG.
! Attach it in the same state. In this way, once again apply the same painting layer 9tl on top of the counterfeit 1st painting 49.
I! fbKf'! , first] The printing paper 1Y that was loaded on the art layer 9Y may be passed through the same printing machine again.

With current printing technology, the misregistration when reprinting 14 degrees of printed paper is at most a few tenths to a few tenths, even when automatic paper feeding is used. Of course, in the case of lithographic printing, there is a small amount of moisture! Since it is attached to the printing surface, some stretching of the paper will occur, but in this case, if you take enough time after stamping and properly control the humidity, the deviation of %1m, etc. can be reduced by 0.05~0. 11II8KK This degree of deviation can be achieved by suppressing it, but it is hardly a problem for large prints such as posters.

By overlapping the printing Y in this way, as shown in Figure 5, -1 layers 9 and 9 of multiple layers (two layers in Figure M5) on the ink carrying layer 3 are made to match each other. It can be laminated and attached.

Next, as shown in FIG.
1 and press the two to bring them into close contact with each other. At this time, it goes without saying that the adhesive 11 should be applied uniformly over the entire surface of the panel substrate 10 or the ink carrying layer 3, and should be applied by passing it through a pair of regular belt rolls (not shown) during pressure contact, or by applying it to the printing paper. The back side of 1 (the right side in the 6th factor) (it is best to rub it with a squeezer starting from 1. Note that the adhesive 1) has a chemical affinity for the printing ink that makes up 1 painting layer 9, In addition, a transparent material can be used) 8゜ From this, an example of an acceptor that satisfies the requirements is one based on vinyl chloride-vinyl acetate copolymer Y. Release liquid from the back side of the attached printing paper! The release layer 2 is allowed to penetrate and swell and dissolve. As mentioned above, when the material of the peeling JII layer is a rewetting adhesive such as PVA, the peeling liquid may be an anionic surfactant such as soap, sulfuric ester of higher alcohol, or alkylaryl sulfonate. Is an aqueous solution appropriate?

If you don't mind the time consuming process, you can use regular tap water. You can also use stamps and label remover from Ichiban.

In this way, once the release liquid has sufficiently penetrated into the release FI 2 and the release layer 2 has swelled and dissolved, one art layer 9.9 and The ink carrying layer 3't' is left on the panel substrate 10 and printed on the printing paper. At this time, a portion of the release layer 2 usually remains on the panel substrate side.

It can be washed with water if necessary, and 27 people can leave it as it is since it is transparent.

When the printing paper is peeled off in this manner, a transparent positive image formed with printing ink is formed on one side of the transparent panel substrate 10, as shown in FIG. ! I. Koto-.

The back side II (release layer 2) of the ink carrying layer 3 may feel slightly cloudy due to the fine irregularities of the ink carrier layer 3. In this case, clear liquid such as transparent lacquer may be used.
If you use vm cloth, it will be completely transparent. The Hanel board 10 looks like a gigantic color slide, and its sharpness is comparable to that of posters that are usually displayed on the street.

Through the process described above, the display panel according to the method of the present invention is completed, or in order to protect the painting layer 9.9 from damage, the supporting surface of the panel base [10, 111g11, etc. The seeds are planted with a circulation layer (not shown) made of plastic film or the like.This protective layer may be made of a milky white light-diffusing material, for example, depending on the purpose of use. .

The exhibition panel manufactured in this manner, having a milky white light-diffusing protective layer No. 4, is illuminated from the back side with a fluorescent lamp, etc., and is used as an illuminated panel to be illuminated by transmitted light.
Post m-meetings, etc. In this case, the illumination light from the back side will pass through this panel.

For example, compared to the case where the poster is illuminated from the back side, such as a regular poster printed on pulp paper K11ji, etc., those with metallic luster look much closer to the real thing. In addition, those with a transparent protective layer YV or those without a protective layer are set in, for example, an electric lighting advertising device having a light-diffusing luminance surface, and aii* etc. are posted using transmitted light.

As is clear from the above explanation, since the present invention uses printing ink to form the image, the weatherability and fading resistance of the product is higher than that of the photochemically formed 1!11g1 etc. Sexuality improves dramatically. If a polyester film that does not transmit UV rays is attached to the front surface of the panel substrate or the back surface of the protective layer, or if the panel substrate or the protective layer itself is made of polyester resin,
Weather resistance is further increased.

In addition, for the same reason, the colors are made more vivid compared to those based on photog IIK, and the transparency of the Piji image layer is increased.

Sara [fta. l! I tried to form a kanji etc. by a number of layers (so I could use the current seal technique*V as it is).
#It depends on the degree of a and the contrast y and how freely the contrast can be applied.In other words, with the current printing technology and printing ink, it is difficult to apply one layer of ink or the thickness γ0.
It is difficult to achieve an ink level above about 0.01■, and with this level of ink storage, the contrast and density of one image using transmitted light are insufficient.
This dissatisfaction can be resolved by forming a kJ group.

Furthermore, a stripping layer was provided at the interface between the ink-carrying layer and the printing paper, and a stripping liquid was applied to this stripping layer to make it easier to separate the printing paper. This eliminates the need for the troublesome process of removing the printing paper by rubbing it off, which greatly improves work efficiency. iji by dropping
Various effects can be achieved, such as completely preventing discoloration such as 1!1'.

In addition, in the above explanation, the rewetting adhesive material T and the ink carrying layer KtX transparent coating material are used for the release layer. However, the technical scope of the present invention is not limited to the above (1) Various modified embodiments or examples are possible, such as using a so-called vinylon film as an ink-carrying layer. A polyvinyl alcohol film Y is used, and a vinyl chloride-vinyl acetate copolymer is used as the release layer.

That is, vinylon film was integrally pasted onto EDJ II paper using an adhesive based on the vinyl copolymer described above. Since vinylon film has high transparency and good printability, it can be used as an excellent ink-carrying layer.Furthermore, it has high resistance to organic solvents, so it does not dissolve in vinyl copolymer-based release layers, such as lacquer. An organic solvent such as thinner can be used as a stripper.

However, in this case, the adhesive that preferentially adheres to the groove layer and the ink carrying layer Z panel substrate is 1, for example, acrylic I.
! 2. It is necessary to use a thermosetting adhesive such as a resin that has high resistance to organic solvents.

! ! In addition, the printing paper is not necessarily made of pulp that has been processed to allow the surface to pass through printing! I don't mean 1
Peel off the surface! If the layer has good adhesion (and has a small gap that allows the release liquid to penetrate from the back surface), it can be molded into a thin layer so that it can be applied to a printing machine, for example, JIlfIj. Of course, it is also possible to use synthetic resin such as so-called PVA paper, which is made using PVA rutted fibers for stiffness.

[Brief explanation of the drawing]

Figures 1 and 2 show processing steps for printing paper.
Expanded sectional views to explain, Fig. 3 shows the continuous processing of printing paper. 1 is an enlarged sectional view illustrating the process. 1... Printing paper, 2... Peeling #[Im, 3... Ink carrying layer. 9... Image compensation layer, 10... Panel substrate, 11... Adhesive. Fig. 2 Fig. 1 Fig. 3 Fig. 4

Claims (1)

[Claims] 1. A step of forming a delamination on one side of printing paper. A step of forming a transparent ink carrying layer on this release layer, and a plurality of 111g! formed with printing ink on this ink carrying layer! A multi-layered process in which layers are laminated and adhered in a manner that matches their compatibility;
An adhesion step of V-bonding the panel substrate and printing paper facing the panel substrate, a step of infiltrating a release liquid from the back side of the printing paper to swell and dissolve the release layer, and a step of attaching the paper layer and the ink carrier layer t. A method for manufacturing an exhibition panel, comprising the step of peeling off the printing paper while leaving it on the panel substrate. 2. The method for manufacturing an exhibition panel as set forth in the Claims Collection, wherein the material of the peeling layer is a rewetting adhesive. 3. The method for manufacturing an exhibition panel as set forth in claim 1, wherein the material of the release layer is a synthetic resin treated with an organic solvent K111w6. 4. The method of manufacturing an exhibition panel according to claim 1 or 2, wherein the material of the ink carrying layer is a transparent coating layer. 5. The method for manufacturing an exhibition panel according to any one of claims 1 to 3, wherein the material of the ink carrying layer is a polyvinyl alcohol film.