JP2002096551A - Material for preparing display matter which can be seen through and method of preparing the display matter using the material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a material enabling easy preparation of display matter that can be seen through and makes it possible to visually recognize the outside from inside, while making it hard to visually recognize the inside from outside. SOLUTION: The material 3 for preparing the display matter that can be seen through is constituted of a recording material 1 that can be seen through and has a transparent base 11 which is provided with a dot pattern 112 having hiding properties and of which one surface at least has ink jet recording characteristics, and of an ink absorbing member 2 that has through holes 23 corresponding to the dot pattern 112.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material for producing a see-through display object which makes it possible to visually recognize the outside from the inside while it is difficult to see the inside from the outside, and to produce a see-through display material using the same. About the method.

[0002]

2. Description of the Related Art Hitherto, some films for window application have been required to have such a performance that the outside can be visually recognized from the inside, but the inside cannot be easily recognized from the outside.
Various films have been proposed to meet such demands (Japanese Utility Model Laid-Open No. 1-68498). These are obtained by printing a halftone dot having a concealing property on a transparent base material, and then printing an image by superimposing the halftone dot on the halftone dot. That is, while the outside can be visually recognized from the inside (the side that prevents visual recognition) through the non-concealed portion of the transparent substrate, attention is drawn to the image formed on the outside surface, so that the outside can be seen. This has the effect of making it difficult to see the inside from above.

[0003]

However, in this method, since a plurality of different colors must be printed on a halftone dot having a small area, a complicated plate-making process such as manufacturing a plurality of plates is required. Therefore, it was practically difficult to produce an original transparent display material at an individual level.

[0004]

The inventor of the present invention has made intensive studies to solve the above-mentioned problems, and as a result, has accomplished the present invention.

That is, the material for producing a see-through display material of the present invention comprises a see-through recording material having at least one surface of a transparent base material having a halftone dot pattern having a hiding property and having an inkjet recording characteristic; And an ink absorbing member having a through hole corresponding to the halftone dot pattern.

Preferably, the transparent recording material and the ink absorbing member are laminated so as to be peelable so that the through holes correspond to the halftone dot pattern.

Further, according to the method for producing a see-through display material of the present invention, the transparent base material having a halftone dot pattern having a concealing property has an ink-jet recording material in which at least one surface has ink-jet recording characteristics. An ink absorbing member having a through-hole corresponding to the halftone dot pattern is laminated on a recordable surface so that the through-hole corresponds to the halftone dot pattern. After outputting the image by
The ink absorbing member is removed.

[0008] According to such a material for producing a see-through display material, the purchaser does not need a complicated plate-making process, and only uses a commercially available ink-jet printer to produce the see-through display material consisting of the original image. It can be easily manufactured.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a material 3 for a transparent display object of the present invention will be described.

[0010] Material 3 for making a transparent display object of the present invention
Has a transparent recording material 1 having at least one surface having an ink jet recording characteristic and a through hole 23 corresponding to the halftone dot pattern 112. And an ink absorbing member 2 (FIG. 1).
Or FIG. 5). Hereinafter, embodiments of each component will be described.

The transparent recording material 1 has at least one surface of a transparent substrate 11 (hereinafter sometimes simply referred to as “transparent substrate 11”) having a halftone dot pattern 112 having a concealing property. It has an ink jet recording characteristic, and after recording an image 5 with an ink jet printer, it is adhered to a transparent body such as a window glass 4 so that the outside can be visually recognized from the inside, while the inside can hardly be seen from the outside. (FIGS. 6 and 7). That is, while the outside can be visually recognized from the inside through a portion (non-concealed portion) other than the halftone dot pattern 112, a person who is outside is deprived of attention by the image 5 directed to the outside, and visually recognizes the inside. It is difficult.

The material of the transparent substrate 11 is not particularly limited as long as it has such transparency that the opposite side can be seen through from the non-concealed portion when it is adhered to the window glass 4. A plastic film 111 such as polyester, polycarbonate, polyethylene, polypropylene, and polystyrene is preferably used.

The transparent substrate 11 has a halftone dot pattern 112 having concealing properties. The halftone dot pattern 112 having such a concealing property can be obtained by performing printing such as screen printing or electrophotographic printing on the plastic film 111 or the like,
1 is formed by providing a photosensitive layer, exposing and developing the halftone dot pattern 112, and the like.

When the halftone dot pattern 112 having concealing properties is formed by screen printing, the halftone dot pattern 112 is mainly composed of a binder resin and a coloring agent.
Examples of the binder resin include vinyl acetate, polyurethane, polyester, and alkyd resins. As the colorant, dyes, organic pigments, inorganic pigments and the like can be used. For white color, titanium oxide and barium sulfate can be used, and for black color, carbon black and the like can be used.

The shape and distribution of the halftone dot are not particularly limited, unlike the flat halftone used in photoengraving. Accordingly, the shape of the halftone dot is not limited to a circle, but may be an ellipse, a semicircle, a polygon, or the like. The distribution may be uniform or random, and the number per unit area is not limited at all. It is preferable that a large number of halftone dots having relatively large diameters be distributed and the area occupied by the halftone dots in the transparent substrate 11 be 60% or more. By doing so, it is possible to make it difficult to visually recognize the inside from the outside and to easily view the outside from the inside without damaging the obtained image of the see-through display object.

In the transparent recording material 1, at least one surface of the transparent substrate 11 has ink jet recording characteristics. The ink jet recording characteristics are not necessarily required on the entire surface of the recording material 1 which can be seen through, but only the halftone dot pattern 112 is sufficient. In order to provide ink jet recording characteristics, the ink receiving layer 12 is provided on the halftone dot pattern 112 (see FIGS. 1 and 2), and the ink receiving layer 12 is provided on the surface opposite to the halftone dot pattern 112 ( This can be achieved by making the halftone dot pattern 112 have both the concealing property and the ink receiving property (see FIG. 5). In addition,
The surface on which ink jet recording is possible may be both surfaces of the transparent base material 11 (see FIG. 4). In the case of both surfaces, it is possible to form an image on each surface, and from either side, the other side can be used. The side can be made hard to see.

The surface having ink jet recording characteristics is
Mainly composed of a water-soluble resin, but if necessary, a mixture of additives such as a polymer compound such as a water-resistant resin or a water-insoluble resin or an extender, an ultraviolet absorber, and a leveling agent. There may be.

Examples of the water-soluble resin include synthetic resins such as polyvinyl alcohol, polyvinylpyrrolidone, hydroxycellulose, acrylic acid and acrylate, and natural resins such as gelatin, casein, starch, chitin and chitosan. As water-resistant water-soluble resin,
Those obtained by reacting with a water-soluble resin through an ionic bond, a coordinate bond, a covalent bond, a hydrogen bond, or the like. Examples of the water-insoluble resin include styrene / maleic acid copolymer, vinyl chloride / vinyl acetate copolymer, acrylic resin, cellulose resin, polyvinyl acetal and the like.

The surface having the ink jet recording characteristics may contain a hot melt resin, a thermoplastic resin, a crystalline plasticizer, a tackifier and the like in addition to the water-soluble resin described above. By adding a hot melt resin or the like in an appropriate combination, it is possible to attach the surface on the front side having the ink jet recording properties to the window glass 4 by heating, and after applying an adhesive as a post-treatment. The work efficiency can be improved as compared with sticking to the window glass 4 (FIG. 7). Further, since the image 5 is sandwiched between the window glass 4 and the plastic film 111 and protected, there is no need to provide a separate protective film or the like.

In order to make the surface having ink jet recording properties exhibit adhesiveness, "only hot melt resin"
"Hot melt resin and tackifier", a method of adding "thermoplastic resin and crystalline plasticizer" or "thermoplastic resin, crystalline plasticizer and tackifier", but in any case, add The total content of the resin and the like is preferably in the range of 100 to 1000% by weight based on the water-soluble resin. When the content is 100% by weight or more, sufficient adhesiveness can be obtained, and when the content is 1000% by weight or less, the ink receiving performance is not hindered. As such a hot melt resin, a thermoplastic resin, a crystalline plasticizer, and a tackifier, conventionally known ones can be used.

In order to express the concealing property and the ink receptivity only by the halftone dots, a paint mainly composed of a water-soluble resin and a colorant is used, and the paint is screen-printed (FIG. 5). As the water-soluble resin and the colorant, the same ones as those exemplified above can be used. In this way, only the halftone dot expresses the concealing property and the ink receiving property,
When the see-through recording material 1 does not have the ink receiving layer 12, the transparency of the non-concealed portion becomes good,
This is preferable in that it is easy to visually recognize the outside from the inside (FIG. 6).

The transparent recording material 1 preferably has an adhesive layer 13 on the surface opposite to the surface on which the ink absorbing member 2 described later is laminated (see FIG. 5).
When the adhesive layer 13 is provided, it is not necessary to separately apply an adhesive when sticking to the window glass 4 as a transparent display object, so that workability can be improved (see FIG. 6). ). As the adhesive constituting the adhesive layer 13, a conventionally known adhesive can be used. It is preferable that a release film 14 is provided on the adhesive layer 13 in consideration of transportation to an ink jet printer (FIG. 5).

The through hole 23 corresponding to the halftone dot pattern 112
The ink-absorbing member 2 (hereinafter, also simply referred to as “ink-absorbing member 2”) having the following is a transparent recording material 1.
The halftone dot pattern 112 is laminated so as not to cover the surface side having the ink jet recording characteristics of
The ink-jet recording is performed only on the halftone dot pattern 112 of the recording material 1 which can be seen through the through hole 23, and the other portion of the recording material 1 which can be seen is prevented from being stained with ink. As the ink absorbing member 2, not only a substrate 21 itself such as a paper or a fiber cloth having an ink absorbing property but also an ink absorbing property, and an ink jet member having an ink receiving layer 22 formed on a substrate 21 such as a plastic film. A recording film or the like provided with a large number of through holes 23 by a punch press or the like can be used.

The ink absorbing member 2 is discarded in principle, but if it has a concealing property, at the same time as the transparent type transparent display material based on the transparent base material 11 (FIGS. 6 and 7), It is also possible to obtain a perforated display (FIG. 8). In that case, the shape of the halftone dot
It is preferable that a large number of halftone dots having a medium diameter are distributed, and the area occupied by the halftone dots in the transparent base material 11 is 40 to 60%. In this manner, any type of transparent display object does not impair the obtained image, makes it difficult to visually recognize the inside from the outside, and makes it easy to visually recognize the outside from the inside.

The through holes 23 exactly correspond to the shape and distribution of the halftone dots of the transparent substrate 11, and are formed by a punch press or the like.

The ink absorbing member 2 having the through holes 23 preferably has an adhesive layer 24 having holes corresponding to the through holes 23 (see FIG. 2). By having such an adhesive layer 24, the lamination work with the transparent base material 11 described above is facilitated, and when the transparent base material is adhered to the window glass 4 as a perforated displayable material. In addition, there is no need to separately apply an adhesive, and the workability can be improved (FIG. 8). One having such an adhesive layer 24 can be obtained by forming the adhesive layer 24 on the base material 21 and then forming a large number of through holes 23 by a punch press or the like.

As the adhesive constituting the adhesive layer 24, a conventionally known adhesive can be used. In addition, the through hole 2
It is preferable to provide a release film on the adhesive layer 24 in order to improve workability such as when forming 3.

Material 3 for making a transparent display object of the present invention
Are the above-described transparent recording material 1 and ink absorbing member 2
Are used such that the through holes 23 correspond to the halftone dot patterns 112 (FIGS. 2 to 5). In this case, it is essential that the ink absorbing member 2 be removable from the laminate. And

The means for laminating is not particularly limited as long as it satisfies the above essential requirements. For example, the recording material 1 and the ink absorbing member 2 which can be seen through use of an adhesive or a tape, or when the ink absorbing member has the adhesive layer 24, use the adhesiveness of the adhesive layer 24 (FIG. 2). Are laminated so as to be peelable. It is to be noted that a method in which the transparent recording material 1 and the ink absorbing member 2 are simply overlapped with each other may be used. However, the above-described means of temporarily bonding the two members with an adhesive or the like is more suitable for recording with an inkjet printer. This is preferable because the positions of the two members do not shift during printing, and there is little possibility that an image is recorded in a portion other than the halftone dot portion and that the inside of the ink jet printer becomes dirty.

When an adhesive is used, the adhesive force of the adhesive itself to be used is adjusted or the adhesive is partially applied so that the transparent recording material 1 and the ink absorbing member 2 can be peeled off. It is preferable to reduce the adhesive force by bringing the adhesive into contact with the adherend (for example, a matrix adhesive layer in which an adhesive is formed in a matrix), or to previously perform a release treatment on any member. .

In order to laminate the through-holes 23 so as to correspond to the halftone dot patterns 112, there is a means for providing registration marks for positioning in the transparent recording material 1 and the ink absorbing member 2. Here, it is preferable that the transparent recording material 1 and the ink absorbing member 2 are laminated so that they can be re-attached and re-peeled in order to facilitate position correction when laminating both members.

Each layer such as the ink receiving layer and the adhesive layer described above is formed by applying and drying a coating solution obtained by dissolving or dispersing the above-mentioned resin or the like in a solvent on a substrate by a known coating method such as bar coating. Can be formed.

Next, a method for manufacturing a transparent display object of the present invention will be described. First, at least one surface of the transparent base material 11 provided with the halftone dot pattern 112 having a masking property corresponds to the halftone dot pattern 112 on the ink jet printable surface of the transparent recording material 1 having ink jet printing characteristics. The ink absorbing member 2 having the through holes 23 is laminated so that the through holes 23 correspond to the halftone dot patterns 112 (FIGS. 2 to 5). Next, the image 5 is output to the halftone dot pattern 112 portion through the through hole 23 of the obtained laminate by an ink jet printer. Next, by removing the ink absorbing member 2 from the laminate, a displayable material is obtained (FIGS. 6 and 7).

When the see-through display material obtained in this manner has the adhesive layer 13 as the see-through recording material 1, as shown in FIG. In the case of containing such as shown in FIG. 7, it is used by sticking to the window glass 4. In the case where the see-through display itself does not have the above-described adhesive performance, the adhesive is applied to the window glass 4 by separately applying an adhesive to the surface having the inkjet recording characteristics or the surface on the opposite side. You. The see-through display attached to the window glass 4 can be viewed from the inside to the outside through the non-concealed portion, while the person on the outside is deprived of the image directed to the outside, This has the effect of making it difficult to see the image.

As described above, according to the production material 3 for a see-through display material of the present invention, the purchaser can easily make the see-through display material composed of the original image without requiring a complicated plate making process. Can be. Further, according to the method for manufacturing a transparent display object of the present invention, a transparent display object including an original image can be easily manufactured.

[0036]

The present invention will be further described with reference to the following examples.
Note that “parts” and “%” are based on weight unless otherwise specified.

Example 1 An aqueous ink (Aqua PAW-white: Teikoku Ink Mfg. Co., Ltd.) was used on a polyester film (Lumilar T60: Toray) 111 having a thickness of 100 μm, and the thickness after drying by a screen printing method. The dot pattern 112 having concealing properties and ink jet recording characteristics was formed such that the dot diameter was 15 μm (the dot diameter was 1.4 m).
m, area of halftone dots occupying 70% of the substrate). Next, an acrylic adhesive (SK Dyne 15) is applied to the surface of the polyester film 111 opposite to the surface on which the dot pattern 112 is formed.
01B: Soken Chemical Co., Ltd.) dissolved in a solvent, and applied and dried so that the thickness after drying becomes 5 μm.
3 is formed, a release film (MR) is formed on the adhesive layer 13.
F: Mitsubishi Chemical Polyester Film Co., Ltd.) 14 to obtain a transparent recording material 1 having an adhesive layer 13. Next, through holes 23 corresponding to the above-mentioned halftone dots are provided on a commercially available ink jet printer paper by a punch press, and an ink absorbing member 2 is manufactured. The ink absorbing member 2 is composed of the transparent recording material 1 and the ink absorbing member 2 obtained earlier. Thus, a material 3 for a see-through display object was obtained.

Example 2 A solvent ink (EG-white: Teikoku Ink Mfg. Co., Ltd.) was used on a polyester film (Lumilar T60: Toray) 111 having a thickness of 100 μm, and the thickness after drying was determined by screen printing. A halftone dot pattern 112 having a concealing property was formed so as to have a thickness of 10 μm (halftone dot diameter 1.2 mm, halftone area 70% of the base material).
%). Next, a coating liquid for an ink receiving layer having the following composition is applied on the halftone dot pattern 112 so that the thickness after drying becomes 15 μm, and dried to form an ink receiving layer 12. I got

<Coating liquid for ink receiving layer> 100 parts of thermoplastic resin (ethylene-vinyl acetate copolymer) (Movinyl 730: Hoechst Gosei Co., Ltd., solid content 46%) 150 parts of crystalline plasticizer (dicyclohexyl phthalate)・ 100 parts of tackifier (rosin-based ester) (SE-E-730-55: Arakawa Chemical Industries) ・ 100 parts of water-soluble resin (polyvinyl alcohol) (Gohsenol KH-17: Nippon Synthetic Chemical Industry)

Next, a coating liquid for an ink receiving layer having the following composition was applied on a 100 μm thick polyester film (Lumilar T60: Toray Industries, Inc.) so that the thickness after drying was 8 μm, and dried to receive the ink. Layer 22 was formed.

<Coating liquid for ink receiving layer> 5 parts of water-soluble resin (polyvinyl alcohol) (Gohsenol KP-06: Nippon Synthetic Chemical Industry Co., Ltd.) 3 parts of water-soluble resin (polyvinyl alcohol) (Gohsenol NH-18: Japan (Synthetic Chemical Industry) ・ 90 parts of water ・ 3 parts of silica (Sylysia 435: Fuji Silysia Chemical)

Next, an acrylic adhesive (SK Dyne 1501) was applied to the surface opposite to the surface on which the ink receiving layer 22 was formed.
B: Soken Chemical Co., Ltd.) dissolved in a solvent, and applied and dried so that the thickness after drying becomes 5 μm.
Is formed, a release film (MRF:
(Mitsubishi Chemical Polyester Film Co., Ltd.).
Next, through holes 23 corresponding to the halftone dots were formed in the obtained material by a punch press, and an ink absorbing member 2 having an adhesive layer 24 was obtained. Next, the release film of the ink absorbing member 2 was peeled off and bonded to the transparent recording material 1 to obtain a transparent display material production material 3 (FIG. 2).

The material 3 for the transparent display material obtained in Example 1 is composed of the recording material 1 and the ink absorbing member 2 which are visible.
After bonding the four sides with a double-sided tape so that both can be peeled off (FIG. 5), the material 3 for the transparent display object obtained in Example 2 is left as it is (FIG. 2), Image 5 was output using a printer (BJC-420J: Canon Inc.).

Next, the ink absorbing member 2 is peeled off and removed from the material 3 for the see-through display on which the image 5 is recorded.
A transparent display was obtained. The displayable object thus obtained is placed on the window glass 4 so that the image 5 is on the outside.
When they were used by sticking them to (Fig. 6 and Fig. 7), all of them could be visually recognized from the inside to the outside, but it was difficult to visually recognize the inside from the outside.

The material 3 for the transparent display material of Examples 1 and 2 can easily produce the transparent display material composed of the original image without contaminating the inside of the ink jet printer. Met.

In the case of Example 1, since it had the adhesive layer 13, it could be stuck to the window glass 4 or the like as it was, and was excellent in convenience (FIG. 6).

The second embodiment can be stuck to the window glass 4 or the like by heating, and the image 5 is sandwiched between the window glass 4 and the plastic film 111. It was excellent in weather resistance (FIG. 7).

Further, according to the method for manufacturing a see-through display object of the embodiment, a see-through display object composed of an original image could be easily manufactured. Further, since the transparent recording material 1 and the ink absorbing member 2 are temporarily adhered to each other, the positions of the two members do not shift during recording by the ink jet printer, so that an image becomes uneven or the transparent recording is performed. An image was not recorded on a portion other than the halftone dot pattern 112 of the material 1, and the inside of the ink jet printer was not stained.

[0049]

According to the material for producing a see-through display object of the present invention, a purchaser can easily produce a see-through display object composed of an original image without requiring a complicated plate making process.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a material for forming a transparent display object of the present invention.

FIG. 2 is a cross-sectional view showing another embodiment of the material for producing a see-through display object of the present invention.

FIG. 3 is a cross-sectional view showing another embodiment of the material for producing a see-through display object of the present invention.

FIG. 4 is a cross-sectional view showing another embodiment of the material for producing a see-through display object of the present invention.

FIG. 5 is a cross-sectional view showing another embodiment of the material for forming a see-through display object of the present invention.

FIG. 6 is a cross-sectional view showing an embodiment of a see-through display object of the present invention.

FIG. 7 is a cross-sectional view showing another embodiment of a see-through display object of the present invention.

FIG. 8 is a sectional view showing an embodiment of a perforated display object of a perforated type.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Transparent recording material 11 ... Transparent base material 111 ... Plastic film 112 ... Halftone dot pattern 12 ... Ink receiving layer 13 ... Adhesive layer 14 ... Release film 2 ... Ink absorbing member 21... Base material 22. Ink receiving layer 23. Window glass 5 ... Image

Claims (3)

[Claims] 1. A transparent base material having a halftone dot pattern having a hiding property, wherein at least one surface has a transparent recording material having an ink jet recording characteristic, and an ink absorbing material having a through hole corresponding to the halftone dot pattern. And a member. 2. The transparent material according to claim 1, wherein the transparent recording material and the ink absorbing member are releasably laminated so that the through holes correspond to the halftone dot pattern. Materials for producing display items. 3. A transparent substrate provided with a halftone dot pattern having a masking property, wherein at least one surface of the transparent base material corresponds to the halftone dot pattern of a transparent recording material having ink jet recording characteristics. An ink absorbing member having a through hole is laminated so that the through hole corresponds to the halftone dot pattern, and after an image is output to the halftone dot pattern portion through the through hole by an inkjet printer, the ink absorbing member is removed. A method for producing a see-through display object, comprising: