JP2000155403A - Lining method and lining material of photograph - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lining material which is strong to changes in heat, temperature and humidity, is strong to bending and tearing by external pressure and has restitutive force by numerously arranging peaks of adhesive on the photograph adhesive surface of the lining material of the photograph apart suitable spacings to a dotty or linear form. SOLUTION: The numerous peaks of the slightly hard adhesive 2 having the high adhesive power to immediately restore the original form in spite of crushing and high self-holding force (cohesive force) are arranged on the upper part of the flat lining material 1 such that the photograph 3 is held to slightly ride on the peak part of the adhesive 2. For example, synthetic rubber, EVA, acryl, ethylene, olefinic system, etc., having the enhanced cohesive force and used as the adhesive 2 and are properly selected by the kind of the photograph, poster, etc., to be adhered. As a method for applying the adhesive 2 to the dotty form, the peaks are preferably so arranged that the area per 1 piece of the peaks of the adhesive 2 to be arranged in the dotty form is <=0.7 square millimeter, by which the peaks of the adhesive 2 of >=200 pieces per 1 inch square are arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of backing a photograph and a backing material, and more particularly, to displaying a photograph in a mirror-like state, that is, a method in which the surface is not uneven when the photograph is framed or displayed. The present invention relates to a backing method and a backing material for a photograph, which can be stuck in a state, prevent warpage and waving of the photograph, and secure flatness.

[0002]

2. Description of the Related Art The surface of a photograph is originally flat, but the appearance of the emulsion surface differs depending on whether the base material is a paper base or a plastic base. Has a mirror-like finish, and even if there are slight irregularities, the overall appearance deteriorates. Therefore, it is very important to maintain the mirror-like state.

[0003] In photographs for display and decoration, the surface temperature rises due to the influence of the heat of a spotlight or the like, and the heat is transmitted to the backing material, causing it to undulate or be distorted, losing its flatness. May devalue.

In order to prevent such a situation from occurring, the thickness of a backing material which is generally used at present and is made of a plastic material such as vinyl chloride or acrylic is increased to 2 to 4 mm.
The method of making it about the thickness is adopted. As another method, there is a method of fixing aluminum plates on both surfaces of a plastic material.

[0005] However, the number of photographs usually used in photo exhibitions is 30 to 50, and when all of them are backed, about 20 to 34 kg using a 2-mm thick vinyl chloride backing material is used. It would be a very difficult job if women would carry it on foot from a lab or the like. Also, when storing it, it is easy to be scratched due to its weight, and the strength of the storage place becomes a problem, and furthermore, its thickness requires a large space.

[0006] Although there is a single material that is resistant to heat (polycarbonite, etc.), it is only required to say that it is resistant to heat or hard to melt. When heated, these materials also distort and undulate, similar to PVC. For this reason, it is now common to use inexpensive vinyl chloride plates.

On the other hand, as a method of applying an adhesive to a backing material for adhering a photograph, there are generally a method of applying a double-sided tape on the entire surface and a method of applying the adhesive in a dotted or planar manner over the entire surface. It is a target. In the case of double-sided tape covering the entire surface, air pools and adhesive pools are easily formed, and the adhesive swells due to the pressure of hands and rollers.For hard photographic paper, a small adhesive like soft soft paper photographic paper Since the pool is not absorbed, the unevenness appears on the surface of the photograph innumerably, and the appearance deteriorates (FIG. 9A). In addition, when the adhesive is applied in the form of a sheet, a photo is placed on the surface and it is rubbed with a roll, but in the case of an adhesive with high viscosity, the adhesive cannot move smoothly at that time, and ridges are formed. Also, unevenness is likely to appear on the surface of the photograph (FIG. 9B).

[0008] There are two types of methods for applying the adhesive in the form of dots, one of which is a method used for bonding postcards or the like. This method uses a roller to press the photo of the base material and crushes the pile of adhesive to create an air pocket, giving an adhesive strength close to the entire surface, but lacks resilience due to the soft adhesive. On the other hand, in the case of a hard photograph, irregularities are formed on the surface, and the appearance tends to be poor (FIG. 10A).

[0009] The other one is designed so that even a layman can easily attach a photograph from the size of a quarter to the entire size of a sheet. In addition, the adhesive is widely spaced (about 180 to 200 pieces per square inch) to reduce the adhesive strength.
The glue shape is flat on the top and a small pile of glue is created in the center. In this case, the area of the top of the adhesive is large, and the portion appears as a convex portion in the case of a hard photograph, so that the appearance is deteriorated (FIG. 10B).

[0010]

As described above, there are many problems with the conventional photographic backing material and the backing method, and the present invention has no such problems, that is, the heat, temperature, humidity, etc. Strong against changes, strong against bending and tearing due to external pressure and resilient, relatively thin and light, has strong stiffness and tension, does not warp, does not easily cause distortion, can be cut with scissors or knives, amateur However, it is an object of the present invention to provide a backing material and a backing method which are easy to handle and enable a mirror finish of a photograph.

[0011]

SUMMARY OF THE INVENTION According to the present invention, an infinite number of piles of adhesive are arranged on a photo bonding surface of a backing material of a photo at appropriate intervals in a dot or line shape, or The above-mentioned object is attained by a method of backing a photograph, characterized in that a fine uneven shape or a fine through-hole is densely formed, and a photograph is bonded on a backing material coated with an adhesive so as to fill the concave part. did.

The present invention also relates to acrylic, vinyl chloride,
Calcium carbonate to plastic materials such as polypropylene,
Backing material for photographs consisting of thin plastic plates mixed with sawdust, carbon or other particulate or powdery material, or paper or cloth impregnated with plastic resin, or plastic resin fibers such as glass or carbon The above problem was solved by using a backing material of a photograph formed of a plastic thin plate which was formed by taking in the shape of a line, a net or the like.

[0013] The present invention also relates to a laminated backing material comprising a base material sandwiched between plastic surface materials, wherein the upper and lower surface materials are formed by cutting a long object, and the upper and lower surfaces thereof are provided. Each upper surface side of the material should be the common side of either the front or back surface of the raw material, and the front end side of the upper surface material when cutting the raw material and the front end side of the lower surface material when cutting the raw material overlap. The above problem was solved by using a backing material of a photograph characterized by laminating upper and lower surface materials.

The present invention further relates to a laminated backing material comprising a base material sandwiched between plastic surface materials and bonded thereto, wherein at least one of the bonding surfaces of the base material and the surface material is provided with irregularities. Or the backing material of the photo with micropores, a base material with a lower heat-resistant temperature is arranged in the middle, and a plastic surface material with a higher heat-resistant temperature is arranged on both sides of the backing material. A backing material, or a surface material adhered to both surfaces of the substrate, and a material having good heat conductivity such as aluminum or copper is deposited on the front side or the back side of the surface material on the side to which a photograph of the surface material is adhered. The above problem was solved by using a backing material of a photograph characterized by the above.

[0015]

Embodiments of the present invention will be described with reference to the accompanying drawings. The first aspect of the present invention is to back up a photograph with a backing material in which a number of peaks of the adhesive 2 are arranged in countless numbers at appropriate intervals on the photo-bonding surface of the backing material.

FIG. 1 shows an infinite number of ridges of a hard adhesive 2 having a strong adhesive force and a high self-holding force (cohesive force) which can be immediately restored even if crushed, on the flat backing material 1. And the photograph 3 is lightly placed on the top of the adhesive 2, and no air is trapped between the backing material 1 and the photograph 3.

As the adhesive 2 in this case, for example, synthetic rubber, EVA, acryl, ethylene, olefin or the like having an increased cohesive force is used, and is appropriately selected according to the type of the photograph, poster or the like to be bonded. The fixation of the adhesive 2 on the backing material 1 is generally performed by a roll coater method using a roll having an infinite number of recesses for filling the adhesive around the roll.

FIG. 2 shows that the surface of the backing material 1a is
An infinite number of small irregularities are formed with or without an interval, and the adhesive 2 is fixed on the convex portions 4. The adhesive 2 in this case may be the same as that in the case of the above example, but may be inferior in restorability. The adhesive 2 may be crushed by placing the photograph 3 and pressing. There is no problem.

FIG. 3 shows a backing material 1b in which unevenness is densely formed on the surface of the backing material 1b, and the adhesive 2 is arranged up to the height of the convex portion so as to fill the concave portion. Instead of backing material 1b, the back side of photo 3 is subjected to unevenness processing,
Both may be subjected to uneven processing. As will be described later, when this method is used for bonding the laminated boards, it is possible to form an interleaf sheet having the same thickness as a whole.

As a method of applying the adhesive in a dot form,
Preferably, the area per one peak of the adhesive to be arranged in the form of dots is arranged to be 0.7 square millimeter or less,
At least 200 piles of adhesive are arranged per square inch.

As the backing material 1, a polyvinyl chloride plate or an acrylic plate is generally used, and these are easily affected by heat because they have a higher water absorption rate and a lower heat deformation temperature than PET or polyethylene. For this reason, some expansion and contraction are repeated even at room temperature.

In the case of the backing material 1 made of vinyl chloride or acrylic, a peak of the adhesive 2 is applied in a dot-like manner, and a photograph having PET or polyethylene as a base material is attached thereto.
Adheres to both the backing material 1 and the photograph 3, but as described above, the backing material 1 expands and contracts even at room temperature, so that the mountain of the adhesive 2 moves. In the case where the backing material 1 is a material having a higher thermal expansion and contraction rate than the base material in Photo 3, at a certain temperature,
Does not expand or contract, but the backing material 1 expands and contracts. As the backing material 1 expands and contracts, the ridges of the adhesive 2 stick together in the contracted state and pull in the expanded state.
As a result, irregularities may appear on the surface of the photograph. Then, when the temperature rises, the smoothness of the backing material 1 itself is lost, causing undulation, and the unevenness of the photographic surface is promoted.

Therefore, as a material of the backing material 1, a material having the same or equivalent thermophysical properties as a photographic base material within a temperature range (-20.degree.
It is desired to employ T, polyethylene, polypropylene, or the like. By doing so, even if there is a large change in temperature and humidity, since the photograph 3 and the backing material 1 expand and contract in the same manner, the peak of the adhesive 2 does not move.

[0024] Further, the unevenness processing may be one in which fine through holes and grooves are densely provided. Furthermore, it is also possible to make it easy to determine the bonding position of the photograph by bonding the grid release paper to the photograph bonding surface of the backing material.

A second embodiment of the present invention is a plastic sheet, paper or cloth formed by mixing granules or powders such as calcium carbonate, sawdust and carbon into a plastic material such as acrylic, vinyl chloride or polypropylene. A thin plate formed by impregnating plastic into a plastic, or a thin plate formed by incorporating glass, carbon, or the like into a linear, net, or fibrous shape and incorporating the plastic into a plastic is used as a backing material for photographs.

Such a plastic thin plate has a small distortion due to heat and can have a uniform shape of the distortion. FIG. 4 shows the state exaggeratedly. FIG. 4 (A) shows a case where only plastic materials such as acrylic and vinyl chloride are used, and FIG. 4 (B) shows a case where the impurities according to the present invention are mixed. And the like.

When only a single plastic material is used, when heat is applied from above, the deformation is large and the shape of the deformed raised portion 5 is not constant, so that it is not suitable as a backing material for photographs. In the case where impurities are mixed, the deformed protruding portions 5 are formed into a small circular shape at the center, which is suitable as a backing material for photographs. It is considered that such a difference occurs between the two in the present invention because impurities mixed therein function as a crosslinking agent and a crosslinking effect occurs.

When the backing material 1c is used, it may be used as it is if its surface is smooth (mirror surface). However, in the case of a material having small irregularities on the surface, it may be of the same type or different type. The resin material having the same melting temperature is smoothed by heat fusion before use. In addition, backing material 1
In the case where c is a material to which an adhesive is unlikely to adhere, it is preferable to subject the backing material 1c to a treatment such as a primer treatment, a corona discharge treatment, a plasma treatment, and a sandblasting process before the adhesion.

A third embodiment of the present invention is a laminated backing material comprising a base material sandwiched between plastic sheets. 5 and 6, the upper and lower plastic sheets are obtained by cutting a long object, and each of the upper and lower plastic sheets is a common surface on one of the front and back surfaces of the raw material. In addition, the upper and lower plastic sheets are bonded together such that the front end of the upper plastic sheet when cutting the raw material overlaps with the front end of the lower plastic sheet when cutting the raw material. This is the backing material 1d.

As shown in FIG. 5 and FIG.
d is manufactured by laminating two plastic sheets (surface materials) 7, 8 obtained by cutting the raw material 6 of the rolled plastic sheet into a predetermined size with another resin base material 9 interposed therebetween. Is done. In this case, the front ends of the plastic sheets 7 and 8 at the time of cutting, that is, the sides A and B overlap the sides A 'and B'. At this time, without turning the plastic sheet 7 or 8 over, the corners A and A '
And overlap.

The reason for this is to prevent curling by focusing on the direction of the eyes formed in the raw material. In other words, in the process of manufacturing the raw material by the stretching method, the heated material is wound while being tensioned while being cooled, and the eyes often change from the imbalance in tensile strength in each direction at that time, In many cases, an eye in an oblique direction is strong in one of the left and right directions and weak in the other direction, as indicated by arrows in FIG.

In the present invention, the two sheets 7 and 8 are overlapped so that the eyes face in the same direction.
It is the conclusion obtained as a result of having repeated the test by the present inventor in various different ways. In the case of using another polymerization method as shown in FIG. 7, all curls occur from the corners.

The base material 9 sandwiched by the plastic sheets 7 and 8 is made of, for example, a polypropylene resin as a main material, to which an inorganic filler and a small amount of additives are added. Preferred is a multilayer synthetic paper having an infinite number of micropores inside.

In the example shown in FIG. 8, as another example of the structure of the laminated backing material, at least one of the bonding surfaces of the base material 11 and the surface materials 12 and 13 is subjected to unevenness processing. In the figure, (A) shows the surface of the surface materials 12 and 13 subjected to unevenness processing, (B) shows the surface of the base material 11 subjected to unevenness processing on both surfaces, and (C) shows the result. The bonding surfaces of the surface materials 12 and 13 and the bonding surfaces of both surfaces of the substrate 11 are subjected to unevenness processing.

The concave / convex processing is performed by embossing, sand blasting or the like. An adhesive layer 14 is interposed between the bonding surfaces. As the adhesive layer 14, an adhesive sheet may be used, or an adhesive may be applied. Thus, the substrate 11
By pressing the surface materials 11 and 12 uniformly over the entire surface by narrowing the gap, the adhesive escapes to the gap between the concave and convex portions, and each convex portion is in contact with the base material 11 ((A)). The same applies to the case of (1), and a backing material having a smooth overall thickness and a uniform thickness can be obtained.

As another example of the construction of the laminated backing material, a base material having a lower heat-resistant temperature is provided in the middle, and a plastic surface material having a higher heat-resistant temperature is provided on both sides of the base material. It is conceivable that the materials are integrated into a laminated state by fusing, bonding or the like.

As still another configuration example of the laminated backing material, a material having good heat conductivity such as aluminum or copper is deposited on the front side or the back side of the surface material to which the photograph is adhered among the surface materials. Things are conceivable. This is intended to conduct heat conduction quickly and uniformly to the entire backing material when subjected to heat to give a uniform temperature change and to adjust expansion and contraction.

When a photograph is to be attached to the above-mentioned laminated type backing material, an adhesive is applied by the above-described method of scattering or other appropriate method, but if necessary, the adhesive surface on the backing material side and / or the photograph side may be uneven. Apply processing. Further, the uneven portion in the laminated type backing material may be replaced with a fine hole or a fine groove.

[0039]

The present invention is as described above. According to the present invention, anyone can easily attach a mirror to a photograph, is resistant to changes in heat, temperature, and humidity, and is bent by external pressure. Resilient and resistant to tearing, relatively thin and light, has a strong stiffness and tension, does not warp, does not easily distort, can be cut with scissors or a knife, etc. There is an effect that a backing material capable of mirror finishing can be obtained.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of the present invention.

FIG. 2 is a diagram showing another embodiment of the present invention.

FIG. 3 is a diagram showing still another embodiment of the present invention.

FIG. 4 is a diagram showing still another embodiment of the present invention.

FIG. 5 is a view showing a manufacturing method according to still another embodiment of the present invention.

FIG. 6 is a diagram showing a manufacturing method of the embodiment shown in FIG. 5;

FIG. 7 is a diagram showing a defect in the case of manufacturing by a method other than the embodiment shown in FIG. 5;

FIG. 8 is a diagram showing still another embodiment of the present invention.

FIG. 9 is a diagram showing a defect of a conventional backing method.

FIG. 10 is a diagram showing a conventional backing method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Backing material 1a Backing material 1b Backing material 1c Backing material 2 Adhesive 3 Photograph 4 Convex part 5 Deformation raised part 6 Thickness 7 Plastic sheet 8 Plastic sheet 9 Base material 11 Base material 12 Surface material 13 Surface material 14 Adhesive layer

Claims (18)

[Claims] 1. A method of backing a photograph, comprising: arranging a myriad of adhesive peaks on a photograph bonding surface of a backing material of a photograph in an infinite number of dots or lines at appropriate intervals. 2. The photograph according to claim 1, wherein the peaks of the adhesive are dot-shaped, the area is 0.7 square millimeters or less, and 200 or more are arranged per square inch. Backing method. 3. The photographic backing method according to claim 1, wherein the backing material is a material having the same or similar physical properties as a photographic base material. 4. The photographic backing method according to claim 1, wherein a fine uneven shape is formed on a photographic adhesive surface of the backing material, and the adhesive is applied on the convex portion. 5. A method of backing a photograph, wherein a fine uneven shape is densely formed on a photograph bonding surface, and the photograph is bonded to a backing material coated with an adhesive so as to fill the concave portion. 6. A backing material for photographs, wherein the fine uneven shape according to claim 4 or 5 is a fine through hole or groove. 7. A backing material for photographs made of a plastic thin plate formed by mixing granules or powders such as calcium carbonate, sawdust and carbon into a plastic material such as acrylic, vinyl chloride or polypropylene. 8. A backing material for photographs made of a plastic thin plate formed by impregnating a paper or cloth with a plastic resin, or incorporating a fiber such as glass or carbon into the plastic resin in a linear or net shape. 9. A laminated backing material comprising a base material sandwiched between surface materials, wherein the upper and lower surface materials are formed by cutting a long material, and the upper and lower surface materials have respective upper surfaces. So that the front side of the upper surface material when cutting the raw material and the front end side of the lower surface material when cutting the raw material overlap, and The backing material of the photograph, characterized by laminating the surface materials. 10. A laminated backing material comprising a base material sandwiched and adhered by a surface material, wherein the backing material is a photograph in which at least one of the bonding surfaces of the base material and the surface material is subjected to unevenness processing. Lining material. 11. A laminated backing material comprising a base material sandwiched between surface materials and adhered thereto, wherein said both surface materials are subjected to unevenness processing or formed by forming fine holes or fine grooves. Backing material. 12. A laminated backing material comprising a base material sandwiched between surface materials and adhered thereto, wherein the base material is a honeycomb structural member made of paper, metal, plastic, or the like. Backing material in the photo. 13. The photographic backing material according to claim 12, wherein the surface material is made of an ultraviolet-permeable material. 14. A backing material for photographs, comprising a base material having a lower heat-resistant temperature disposed in the middle, and a plastic surface material having a higher heat-resistant temperature disposed on both sides of the base material. 15. A material comprising a surface material adhered to both surfaces of a substrate,
A backing material for photographs, wherein the hardness or thickness of the front side material and the back side material is different. 16. A surface material is adhered to both sides of a base material,
A backing material for photographs, wherein a material having good thermal conductivity such as aluminum or copper is vapor-deposited on the front side or the back side of the surface material on the side to which the photograph is bonded among the surface materials. 17. The backing material for a photograph according to claim 6, wherein the backing material is roll-wound and cut to a required amount at the time of use to be usable. 18. The backing material for a photograph according to claim 6, wherein a grid separation paper is covered on the photograph bonding surface.