JP2549800B2 - Image reading sheet material and copying machine using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading sheet material used when a printed matter is copied by a copying machine, a method of copying the printed matter by the copying machine using the image reading sheet material, and the image. The present invention relates to a copying machine equipped with a reading sheet material as a glass plate.

[0002]

2. Description of the Related Art Conventionally, when a printed matter is copied using a copying machine, the printed matter is left as it is, or a blank sheet of the printed matter is cut and pasted on a transparent glass plate of the copying machine. It was usual to close the cover and make a copy.

[0003]

In any case, since the printed matter and the transparent glass plate of the copying machine are brought into close contact with each other, the image of the copying machine becomes transparent, so that the corners of the printed matter and the shape lines cut and pasted. However, it appeared to be black streaks and could not be used for some purposes.

In view of the above-mentioned conventional technique and its problems, the present invention is an image reading sheet used in general image reading devices for reading reflected light after exposing a document, for example, laser copying, facsimile, electrophotographic device, lithograph and the like. By providing the material and using the image reading sheet material, an extremely clear copy can be obtained without the corners of the printed matter and the cut and pasted shape lines appearing as black stripes. Providing reading sheet material,
Furthermore, it is an object of the present invention to provide a method of copying a printed matter by using the image reading apparatus of the type described above.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems and objects, and is transparent on one surface of a transparent base material sheet so that the one surface becomes uneven. An image reading sheet material, in which various bead layers are formed.

[0006]

The present invention also relates to one side of a transparent substrate sheet.
Apply embossing to the surface on one side so that the surface becomes uneven.
The sheet material for image reading is characterized in that uneven surface grooves having a predetermined shape are formed.

Furthermore, the present invention is characterized in that, in the above-mentioned image reading sheet material, the uneven surface grooves are formed in a concentric shape, a spiral shape, a linear shape, and a radial shape. .

Further, the present invention includes two image-reading sheet material described above is, that at least respective one end has a bonded <br/> file shape image reading sheet material, wherein is there. At this time, the above two image reading sheets
Select the same or different sheet material as the material.
Is possible. For example, both sheets have a bead layer
In the case of sheet material with two surface grooves,
One is a sheet material with a bead layer, and the other is a surface groove.
In the case of a sheet material having

[0010]

[0011]

Furthermore, the present invention is a copying machine wherein the image reading sheet material is mounted as a glass plate of a copying machine.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The image reading sheet material of the present invention will be described below in more detail with reference to the accompanying drawings.

FIG. 1 is a partially enlarged sectional view showing an embodiment of an image reading sheet material of the present invention. In FIG. 1, reference numeral 1 indicates the image reading sheet material of the present invention as a whole.
The image reading sheet material 1 is composed of a transparent substrate sheet 2 and uneven surface grooves 3 and 3 formed on the surface of the substrate sheet 2.

Here, the substrate sheet 2 is preferably composed of a transparent material, and for example, glass, glass, polycarbonate (PC), acrylic resin, transparent synthetic resin such as polystyrene and the like are used. It is possible. In addition, even if it is other than this, it is transparent, does not hinder the passage of light, maintains the light guiding performance,
Any substrate sheet 2 can be used as long as it has various properties such as elasticity and durability according to the intended use.

The thickness of the substrate sheet 2 can be appropriately selected depending on the application. For example, for mount, 50 to 5
It is preferably about 000 μm.

In order to improve the function of the image reading sheet material 1, the surface grooves 3 and 3 are shown in FIG.
As shown in Fig. 2 (d), as shown in Fig. 2 (b), as shown in Fig. 2 (b), as shown in Fig. 2 (c), as shown in Fig. 2 (c). It is preferable to make them radial.

The cross-sectional shape of the surface grooves 3 and 3 and the pitch of the grooves are not particularly limited. For example, the pitch of the grooves is appropriately about 10 μm to 2000 μm.

Further, as a method of forming such a groove on the surface of the substrate sheet 2, (1) a template having concave and convex grooves of a predetermined shape is pressed against a plastic plate, and at the same time, the template and the plastic plate are formed. A vacuum is applied between the mold and the plastic plate to form a concavo-convex pattern on the mold plate, so-called "vacuum molding method". (2) A transparent plastic plate is formed with a large number of fine concavo-convex patterns on the roll surface. A so-called "hot press method" in which unevenness is formed on the surface by finishing with a pressing / cooling roll (so-called "mat roll") or the like can be adopted.

On the other hand, FIG. 3 is a partially enlarged sectional view showing another embodiment of the image reading sheet material of the present invention. In FIG. 1, reference numeral 1'indicates the image reading sheet material of the present invention as a whole,
Basically, the image reading sheet material 1'comprises a transparent substrate sheet 2'and a bead layer 3'formed by coating on the upper surface of the substrate sheet 2 '.

Here, the same material as described above can be used as the base sheet 2.

The bead layer 3'is composed of a base layer synthetic resin 5 in which one or more bead particles 4 made of urethane resin, vinyl chloride resin, acrylic resin, glass, vitreous or the like are mixed. It is what is done.

The bead particles 4 are preferably 5 to 95% by weight, based on the synthetic resin of the base layer. If the amount is 5% by weight or less, the copying effect cannot be expected.
This is because if the content of the bead particles is more than 5% by weight, the bead particles 4 are not well fixed to the synthetic resin 5 and the bead particles may easily fall off.

In this case, the particle size of the bead particles 4 is preferably about 1 to 100 μm in view of its copy effect, but it is also possible to mix at least two kinds of beads having different particle sizes. is there.

Further, the bead layer 3 ′ is completely embedded in the resin layer 5 in the synthetic resin 5 of the base layer, and partially embedded in the resin layer 5, and at least Bead particles partially protruding from the resin layer 5 may be mixed.

As the synthetic resin 5 of the base layer, a two-component curing type using an acrylic resin as a main component mixed with the bead particles and an isocyanate type synthetic resin as a curing agent depends on the kind of the bead particles. From the viewpoint of workability and strength, it is preferable to use a resin and set the thickness to about 15 to 20 μm (the thickness not including the bead particles). However, the kinds of bead particles and the synthetic resin of the base layer may be other than those described above as long as they are combinations that can expect an image reading effect, and are not particularly limited. In addition,
The well-known "blade coater roll" method may be used to coat the bead layer 3'containing the bead particles on the upper surface of the base material sheet 2. For example, "MB roll" (manufactured by Musashino Kikai Co., Ltd.) ), “Comma roll” (manufactured by Hirano Techseed Co., Ltd.) and the like.

As shown in FIG. 4, the image reading sheet material of the present invention having the above-mentioned structure is used for copying the printed matter 6 into the copying machine 7.
When copying using, the printed matter 6 as it is or the printed matter 6 cut and pasted is placed at a predetermined position on the main image reading sheet material 1 (1 ′), and the copying machine 7 is used.
It is placed on the transparent glass plate 8 and the cover 9 of the copying machine is closed to make a copy.

In this case, as shown in FIGS. 5 (a) and 5 (b), the uneven surface grooves 3 and 3 formed on the surface of the image reading sheet material 1 or the bead particles of the bead layer 3 '. 4 and
Since the space 10 is formed between the printed matter 6 and the image of the copying machine, the image of the copying machine becomes opaque, the corners of the printed matter, the cut and pasted shape lines, etc. do not appear in black stripes, and the bead layer 3 ′ is formed. The image itself is transparent, and the image becomes clear,
It is possible to obtain extremely clear copies.

Furthermore, FIG. 6 shows another embodiment of the image reading sheet material of the present invention, in which at least one end of the image reading sheet material 1 (1 ') is polymerized ( 11 and 12), the cut-and-pasted printed matter 6 is easily arranged and is prevented from falling off.

Further, as shown in FIG. 7, the image reading sheet material 1 (1 ') of the present invention is mounted (13) as a glass plate of the copying machine 7, whereby the glass plate 1 is attached.
The above-mentioned clear copy can be obtained only by placing the printed matter 6 on the copy sheet 3 and making a copy.

Example 1 A transparent acrylic plate having a thickness of 2.5 mm was heated and softened, and a template having spiral concave and convex grooves with a groove pitch of 500 μm formed on the surface of the acrylic plate was pressed and pressed. Guess
Spiral grooves were formed on the surface of the acrylic plate.

Example 2 Polyethylene terephthalate (PET) having a thickness of 200 μm (“trade name?”, Manufactured by Dia foil Co., Ltd.) was used as a substrate.

On the upper surface of this base material, a coating base material containing acrylic beads (particle diameter: 10 to 100 μm) (40 parts by weight) (“RUB coating agent”, manufactured by Dainichiseika Co., Ltd.) (60
"PTC LN curing agent" (manufactured by Dainichiseika Co., Ltd.) as a curing agent for 100 parts by weight of resin composed of
15 to 20 μm thick with the addition of parts by weight on the upper surface
“MB roll” (manufactured by Musashino Kikai Co., Ltd.) was applied so as to have a (bead-free thickness).

The results of the characteristic test on this sheet material are as follows.

Optical characteristics--Total light transmittance ... 90 (%)
(Based on JIS K 7105 A method) Haze ... 84 (%) (based on JIS K 7105)

[0036]

In the thus constructed image reading sheet material of the present invention, if the main image reading sheet material is used as a mount and a printed matter is placed on it, and the printed material is applied to a copying machine, the main image reading is performed. Since a space is formed between the unevenness of the surface grooves formed on the surface of the sheet material or the bead particles of the bead layer and the printed matter, the image of the copying machine becomes opaque, and the corners of the printed matter, and The cut-and-pasted shape lines and the like do not appear as black stripes, and the bead layer itself has a light-transmitting property, so that the image becomes clear and an extremely clear copy can be obtained.

Further, among the image reading sheet materials of the present invention, when the above-mentioned image reading sheet material has a file shape in which at least one end thereof is polymerized, cut and pasted printed matter is easy to arrange and portable. It is something that will not fall out.

Further, when the above-mentioned image reading sheet material of the present invention is mounted as a glass plate of a copying machine, the above-mentioned clear copy can be obtained only by placing a printed matter on the glass plate and copying. It becomes possible.

[Brief description of drawings]

FIG. 1 is a partially enlarged sectional view showing an embodiment of an image reading sheet material of the present invention.

FIG. 2 is a top view of the image reading sheet material of the present invention.

FIG. 3 is a partially enlarged sectional view showing another embodiment of the image reading sheet material of the present invention.

FIG. 4 is a perspective view illustrating a state in which a printed matter is copied by a copying machine using the image reading sheet material of the present invention.

FIG. 5 is a partially enlarged sectional view illustrating a state in which a printed matter is copied by a copying machine using the image reading sheet material of the present invention.

FIG. 6 is a perspective view showing still another embodiment of the image reading sheet material of the present invention.

FIG. 7 is a perspective view showing a copying machine using the image reading sheet material of the present invention.

[Explanation of symbols]

 1, 1 '... Sheet material for image reading 2, 2' ... Substrate sheet 3 ... Surface groove 3 '... Bead layer 4 ... Bead particles 5 ... Synthetic resin layer 6 ... Printed matter 7 ... Copying machine 8 ... Transparent glass plate 9 ... Cover 10 ... Space 13 ... Glass plate

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Katsuhiko Otani 5-2-14 Asakusabashi, Taito-ku, Tokyo Asakusabashi Heights 402 (56) References JP-A-59-33447 (JP, A) JP-A 5-48787 (JP, A) JP 58-33270 (JP, A) JP 5-88520 (JP, A) Actually open 62-196458 (JP, U) Actually open 56-172057 (JP, U)

Claims (4)

(57) [Claims] 1. Image reading for reading reflected light after exposing a document
A transparent sheet material used in a take-up device, characterized in that a transparent bead layer is formed on the surface of one side of a base material sheet so that the surface on one side becomes uneven. Image reading sheet material. 2. An image reading for reading reflected light after exposing a document.
It is a transparent sheet material used for a take-up device, and an uneven surface groove of a predetermined shape is formed by embossing on the surface of one side of the base material sheet so that the surface on one side becomes uneven. An image reading sheet material. 3. An image reading sheet material, wherein at least one end of each of the two image reading sheet materials according to claim 1 or 2 is joined. 4. A copying machine, wherein the image reading sheet material according to claim 1 or 2 is mounted as a glass plate of a copying machine.