JP2001239777A - Postcard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a postcard capable of suitably and temporarily concealing a front surface of a postcard mounting sheet without processing such as releasing the front surface of the mounting sheet and allowing the mounting sheet to be difficult to be curled in the case of adhering a covering material even by using a heat adhesive resin as an adhesive. SOLUTION: The postcard 10 comprises a postcard mounting sheet 12, and an adhering material to be adhered to a part of a front surface of the sheet 12. In this case, the adhering material has a sheet base material 16 dimension stabilized by a dimension stabilizer, a first heat adhesive resin layer 20 formed on a main surface of the material 16, made of the heat adhesive resin having a delayed tackiness and having a weak adhesive force, and a second heat adhesive resin layer 22 formed at a part of the surface of the layer 20, made of a heat adhesive resin having the delayed tackiness and having a strong adhesive force. The adhesive material is heated at a position separate from the sheet 12, activated at the layers 20 and 22, and adhered to the front surface of the sheet 12 by the layers 20 and 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a postcard, and more particularly to a postcard capable of temporarily hiding a secret matter formed on the surface of a postcard mount.

[0002]

2. Description of the Related Art FIG. 21 is a perspective view showing a conventional postcard, and FIG. 22 is a sectional view taken along line XXIII-XXIII in FIG. The postcard 1 includes a postcard backing 2 formed in a government-made postcard size, and a covering material 3 attached to a part of the postcard backing 2. The coating material 3 is a sheet-like base material 4
including. A concealing layer 5 is formed on the main surface of the substrate 4.
On the surface of the hiding layer 5, a laminate layer 6 made of polyethylene is formed. Further, an adhesive layer 7 made of a pressure-sensitive adhesive is formed on the surface of the laminate layer 6. The covering material 3 is adhered to a part of the postcard backing paper 2 by the adhesive layer 7.

[0003]

In such a conventional postcard, the surface of the postcard mount can be hidden, but there were cases where an error occurred in attaching the covering material to the postcard mount.

[0004] As a postcard for solving this problem, a postcard using a heat-adhesive resin as an adhesive has been developed. In such a postcard, the positions of the covering material and the postcard board are confirmed, and then the heat-adhesive resin layer is melted, and the covering material is attached to the postcard board. Therefore, when attaching the covering material to the postcard mount, an attachment error is less likely to occur.

[0005] However, when the covering material is adhered to the postcard board in such a postcard, the postcard board may be curled because the postcard board is also heated when the heat-adhesive resin layer is heated. .

A laminate formed so that a part, for example, a part in a frame can be partially peeled off,
Dry glue is applied over the entire surface of the paper to form an adhesive surface, and the other substrate is peeled off by, for example, silicon processing so that only the portion inside the frame can be peeled off, for example. By performing the treatment, it is necessary to partially peel off one of the laminates in the laminate structure. Therefore, at the time of their manufacture, a step of applying a dry paste is required for one of the laminates, and a peeling process such as silicon processing is required for the other laminate,
Inevitably, the structure of the laminate is complicated, and the number of manufacturing steps is increased, so that the manufacturing cost is increased.

Therefore, a main object of the present invention is to allow the surface of a postcard mount to be suitably and temporarily hidden without subjecting the surface of the postcard mount to processing such as peeling.
Moreover, even if a heat-adhesive resin is used as the adhesive, the present invention is to provide a postcard in which the postcard mount is not easily curled when the covering material is attached.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a postcard including a postcard mount and a sticking material stuck to at least a part of the surface of the postcard mount, wherein the sticking material is a dimensional stabilizer. A sheet base material dimensionally stabilized by the first heat-bondable resin layer which is formed on the main surface of the sheet base material, is made of a delayed-tack heat-bondable resin, and has a weak adhesive force;
A second heat-adhesive resin layer formed on a part of the surface of the first heat-adhesive resin layer and made of a delayed-adhesive heat-adhesive resin and having a strong adhesive force; The first heat-adhesive resin layer and the second heat-adhesive resin layer are activated after the first heat-adhesive resin layer and the second heat-adhesive resin layer are activated at a position separated from the postcard mount and activate the delayed tack property. Is a postcard adhered to the surface of a postcard mount by the heat-adhesive resin layer of No.

[0009]

Since the heat-adhesive resin layer is formed of a delayed-adhesion heat-adhesive resin, it can be adhered to a postcard after heating the covering material.

The first heat-adhesive resin layer is weakly adhered to the postcard board, and the second heat-adhesive resin layer is strongly adhered to the postcard board. Therefore, the sheet base material is not inadvertently detached from the postcard mount by the force applied to the portion where the second heat-adhesive resin layer is formed. Also, in this state, the surface of the postcard mount is hidden by the hiding layer.

[0011] Then, if the sheet base material or the like is cut off at the portion where the second heat-adhesive resin layer is not formed, and then peeled off,
The concealing layer and the first heat-adhesive resin layer together with the sheet substrate are peeled off from the postcard mount. Therefore, the surface of the postcard mount can be seen.

[0012]

According to the present invention, the surface of a postcard mount can be suitably and temporarily hidden without subjecting the surface of the postcard mount to processing such as peeling. Further, even when a heat-adhesive resin is used as an adhesive in a postcard, the postcard mount is unlikely to curl when the covering material is attached.

The above objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

[0014]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along line II-II in FIG.

The postcard 10 includes a postcard backing 12 formed into a large postcard, and a covering material 14 attached to a part of the postcard backing 12.

Next, a covering material 14 to be attached to the surface of the postcard backing 12, particularly to a portion where confidential matters are described, for example, for financial or insurance information, will be described mainly with reference to FIG. I do.

The covering material 14 includes a sheet-like base material 16. The base material 16 is formed of a relatively flexible material, such as paper or a synthetic resin film, which can be cut with scissors or the like.

On one main surface of the base material 16, a hiding layer 18 is formed. The hiding layer 18 is formed by, for example, solid silver printing with silver ink or the like,
Alternatively, it is formed by laminating a film material having a hiding power such as aluminum foil with an adhesive or the like.

On the surface of the concealing layer 18, a heat-adhesive resin having a delayed tack property and a weak adhesive force is applied.
The first heat-adhesive resin layer 20 is formed by extrusion coating while heating, or by dissolving in a solvent or dispersing in water and printing such as gravure or silk screen.

The first heat-adhesive resin layer 20 is formed so as to be melted at a temperature of, for example, 100 ° C. to 200 ° C. and adhered to a postcard backing paper 12 made of paper, for example.

The heat-adhesive resin has a delayed tack property, and basically comprises a polymer and a solid plasticizer,
It preferably contains a tackifier and may further include an antioxidant and other additives.

Examples of the polymer include polyvinyl acetate, polybutyl methacrylate, vinyl chloride-vinylidene chloride copolymer, synthetic rubber, vinyl acetate-2-ethylhexyl copolymer allyl, vinyl acetate-ethylene copolymer, vinyl pyrrolidone-styrene copolymer. , Styrene-butadiene copolymer, vinyl pyrrolidone-ethyl acrylate copolymer, and the like.

The solid plasticizer includes a crystallized plasticizer and an amorphous plasticizer. The crystallized solid plasticizer has no tackiness. On the other hand, an amorphous solid plasticizer has tackiness.

Examples of such a solid plasticizer include dicyclohexyl ortho-phthalate, diphenyl ortho-phthalate, dihexyl ortho-phthalate, dihydroabiethyl ortho-phthalate, dimethyl isophthalate, sterulose benzoate, ethylene glycol dibenzoate, Trimethylolethane tribenzoate, glyceride tribenzoate, pentaerythritol tetrabenzoate, sterulose octaacetate, tricyclohexyl citrate, N-cyclohexyl-p-toluenesulfonamide, dehydroabiethylamine carbonate, methoxyethyl stearate-urea Complexes.

Examples of the tackifier include indene resin, ethyl cellulose, petroleum resin (hydrocarbon resin), terpene resin, rosin derivative (polymerized rosin, hydrogenated rosin, pentaerythritol ester of rosin, resin acid dimer) and the like.

Further, on the surface of the first thermo-adhesive resin layer 20, a second thermo-adhesive resin layer 22 having a strong adhesive force is formed. In this embodiment, the second thermo-adhesive resin layer 22 is formed with a certain width on both sides in the longitudinal direction of the postcard backing paper 12, that is, on both upper and lower ends of the covering material. Further, the second heat-adhesive resin layer 22 is formed in a spot shape on both sides in the width direction of the postcard backing paper 12, that is, on both right and left ends of the covering material. The second heat-adhesive resin layer 22 is formed by partially applying a heat-adhesive resin having a strong adhesive force to the surface of the first heat-adhesive resin layer 20. In this case, for example, the material of the thermo-adhesive resin having a strong adhesive strength may contain a larger amount of tackifier or no release agent at all as compared with the material of the thermo-adhesive resin having a weak adhesive strength. . The second heat-adhesive resin layer 22 may be formed on the surface of the first heat-adhesive resin layer 20 only at the upper and lower ends or at both the left and right ends of the covering material 14. In this case, the second thermoadhesive resin layer 22 may be formed with a certain width, or may be formed in a spot shape.

As shown in FIG. 3 and FIG.
In the portion where the second heat-adhesive resin layer 22 is not formed, the base material 16, the concealing layer 18 and the first heat-adhesive resin layer 20 are cut and peeled off from the postcard backing sheet 12 relatively easily. be able to. Then, the surface of the postcard mount 12 can be seen.

In the postcard of the present invention, the first and second thermo-adhesive resin layers 20 and 22 are formed by a delayed tack adhesive and have adhesive properties as an adhesive. The delayed tack adhesive is a kind of hot melt adhesive and has a long open time. Therefore, after heating the covering material 14, the postcard
Can be adhered to.

FIG. 5 shows a postcard mount 1 of such a covering material 14.
FIG. 5 is an illustrative view showing one example of a method of sticking to No. 2; First, the coating material 14 is held on the holding reel 24. Coating material 14
Is unwound at one end and sent into the dryer 26. Then, the coating material 14 is heated in the dryer 26. Thereafter, the coating material 14 is cut at the location indicated by the arrow A, and is further sucked into the vacuum device 28. Further, between the vacuum device 28 and the pressing roller 30, the covering material 14 is attached to the postcard backing paper 12.

As described above, since the covering material 14 is adhered to the postcard mount 12 after being heated, the postcard mount 12
Is not heated, and the postcard mount 12 is hard to curl.

FIGS. 6 and 7 show another embodiment of the present invention. FIG. 6 is a perspective view thereof, and FIG. 7 is a sectional view taken along line VII-VII of FIG. In this embodiment, in particular, the upper and lower ends of the base material 16, the concealing layer 18, and the first thermo-adhesive resin layer 20 are formed at the portions where the second thermo-adhesive resin layer 22 is not formed. Along the edge of the adhesive resin layer 22, cutouts 32a and 32b, for example, made of perforations are formed. These cuts 32a and 32b are formed by a cut forming apparatus including, for example, a roll with cut teeth, a so-called die roll, or a cut forming apparatus including a die cutter having cut teeth.

Therefore, in this embodiment, as shown in FIG. 8 and FIG. 9, in the portion where the second heat-adhesive resin layer 22 is not formed, the base material 16, the concealing layer 18 and the first heat-adhesive resin layer 22 are formed. The conductive resin layer 20 can be cut off at the cuts 32a and 32b, and can be peeled off the postcard backing sheet 12 relatively easily. Then, the surface of the postcard mount 12 can be seen.

10 and 11 show still another embodiment of the present invention. FIG. 10 is a perspective view of the embodiment, and FIG. 11 is a sectional view taken along line XI-XI in FIG. In this embodiment, another cut 32 c is formed in the base material 16, the concealing layer 18, and the first thermo-adhesive resin layer 20, particularly inside the cut 32 b. This cut 32c is formed together with the cuts 32a and 32b by, for example, a die roll. Further, between the cuts 32b and 32c, at one end of the base material 16, the concealing layer 18, and the first heat-adhesive resin layer 20, for example, a flat semicircular cutout 28 is formed.

Therefore, in this embodiment, the coating material 14
12 and 13 when peeling off the central portion in the vertical direction of FIG.
As shown in (1), first, the base material 16, the concealing layer 18 and the first heat-adhesive resin layer 20 are peeled at the narrow portion between the cuts 32b and 32c. In this case, if a finger is put on the notch 34, the base material 1 is formed in a narrow portion between the cuts 32b and 32c.
6, the concealing layer 18 and the first heat-adhesive resin layer 20 can be easily peeled off. Then, the surface of the postcard backing paper 12 can be seen by bending or cutting the central portion of the covering material 14 in the vertical direction at the cut 32a.

In the embodiment shown in FIGS. 10 and 11, instead of forming the notch 34, a projecting piece extending outward between the cuts 32b and 32c may be formed.
By doing so, the narrow portion of the covering material 14 can be more easily removed by pinching the protruding piece.

14 and 15 show another embodiment of the present invention. FIG. 14 is a perspective view of the embodiment, and FIG. 15 is a sectional view taken along line XV-XV in FIG. In this embodiment, in particular, the covering material 14 extends from one end of the postcard backing sheet 12 and is integrally formed, and is folded back and adhered to the postcard backing sheet 12.

Also in this embodiment, as shown in FIGS. 16 and 17, in the portion where the second heat-adhesive resin layer 22 is not formed, the base material 16, the hiding layer 18 and the first heat-adhesive resin Layer 20 can be cut and peeled off postcard mount 12 relatively easily. Then, the surface of the postcard mount 12 can be seen.

The base material 16 is dimensionally stabilized by a dimension stabilizer. Examples of dimensional stabilizers include:
Latex such as butadiene-styrene latex, butadiene-acrylonitrile latex, butadiene-methyl methacrylate latex, chloroprene latex, vinylidene chloride latex, acrylate latex, urea resin, melamine resin, phenol resin, PV
Examples include water-soluble thermosetting resins such as A (polyvinyl alcohol) and solvent-based resins such as polyester resins, vinyl chloride resins and shellac resins.

These are coated or impregnated alone or as a mixture of two or more kinds or together with a cross-linking agent.
Stabilize the dimensions of 6. Examples of the crosslinking agent include epoxy resin, glyoxal, aminoaldehyde resin, zirconium carbonate, and the like.

FIG. 18 shows a laminate layer 3 by the T-die method.
8 is an illustrative view showing a forming method of No. 8; FIG. The laminate layer material 38a is thinned by the T-die 40 to form the laminate layer 38.

The other main surface of the substrate 16 may be coated with an anti-curl agent to form an anti-curl layer. The anti-curl layer is formed to prevent curling. That is, the concealing layer 18, the laminate layer 38, the first
Since the heat-adhesive resin layer 20 and the second heat-adhesive resin layer 22 are formed, for example, when paper is used as the base material 16, expansion and contraction of the surface of the base material 16 on the side of the concealing layer 18 is prevented.
Therefore, if the paper constituting the base material 16 absorbs and releases moisture from the surface of the base material 16 on the side opposite to the concealing layer 18 side, the paper expands and contracts and curls. Therefore, to eliminate the change in the water content of the paper constituting the base material 16,
Alternatively, it is formed so that curling can be prevented by making it small. As the anti-curling agent, an acrylic emulsion, a vinylidene chloride resin, a polyethylene emulsion, a wax such as a paraffin wax or a microcrystalline wax, a metallic soap, or the like is used in an emulsion form or by heat melting. These are used alone or in combination of two or more, and coated or impregnated to form an anti-curl layer. In addition, as an anti-curl layer, the surface of the base material 16 opposite to the side of the concealing layer 18
Like the laminate layer 38, it may be formed by laminating polyethylene.

Further, when a non-stretchable material such as a resin film is used as the base material 16, the shrinkage of the concealing layer 18, the first heat-adhesive resin layer 20, and the second heat-adhesive resin layer 22 are reduced. As a result, curl occurs on the side of the concealing layer 18 of the base material 16. Therefore, as the anti-curl agent, a water-soluble polymer such as polyvinyl alcohol, polyethylene oxide and polyvinyl methyl ether, a natural polymer such as starch and casein, a latex and an aminoaldehyde resin are used. These are applied to form an anti-curl layer, and the function of the anti-curl layer cancels and prevents curl.

Further, the surface of the base material 16 tends to release heat, and the surface tends to shrink. However, since the size of the base material 16 of this embodiment is stabilized by the size stabilizer, the surface of the base material 16 is not easily shrunk when the covering material 14 is manufactured and attached. Furthermore, on one main surface of the base material 16,
Since the anti-curl layer is formed by coating the anti-curl agent, the coating material 14 is unlikely to curl during its production and attachment.

In each of the above embodiments, the coating material 1
4 is configured to be peelable, for example, the second heat-adhesive resin layer 22 is coated with the covering material 14.
And a second heat-adhesive resin layer 2
A cut is formed in the base material 16, the concealing layer 18 and the first heat-adhesive resin layer 20 along the edge of 2, and the center portion of the covering material 14 is cut by the cut and can be peeled from the postcard mount 12. It may be configured as follows.

In this case, as shown in FIG.
One cut 32 is formed into a straight cut portion 42a so that adjacent cuts 32 overlap in the direction in which the 4 is peeled off.
And the arc-shaped cut portion 42b, the covering material 14
Can be easily peeled off. In order to easily peel off the central portion of the covering material 14 as described above, for example, as shown in FIG. Each linear cut 32 may be formed diagonally around the base material 16 so as to partially overlap.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a perspective view showing a state in which the covering material has been peeled off from the post card.

FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;

FIG. 5 is an illustrative view showing one example of a method of attaching a covering material to a postcard mount;

FIG. 6 is a perspective view showing another embodiment of the present invention.

FIG. 7 is a sectional view taken along line VII-VII in FIG. 6;

FIG. 8 is a perspective view showing a state where the narrow portion of the base material of the postcard shown in FIGS. 6 and 7 is peeled off.

FIG. 9 is a sectional view taken along line IX-IX in FIG. 8;

FIG. 10 is a perspective view showing still another embodiment of the present invention.

FIG. 11 is a sectional view taken along line XI-XI in FIG. 10;

FIG. 12 is a perspective view showing a state in which the narrow portion of the base material of the postcard shown in FIGS. 10 and 11 is peeled off.

FIG. 13 is a sectional view taken along line XIII-XIII in FIG. 12;

FIG. 14 is a perspective view showing another embodiment of the present invention.

FIG. 15 is a sectional view taken along line XV-XV in FIG. 14;

FIG. 16 is a perspective view showing a state in which the covering material of the postcard shown in FIGS. 14 and 15 is removed.

FIG. 17 is a sectional view taken along line XVII-XVII in FIG. 16;

FIG. 18 is a perspective view illustrating a method of forming a laminate layer by a T-die method.

FIG. 19 is a main part surface view showing still another embodiment of the present invention.

FIG. 20 is a fragmentary surface view showing a modification of the embodiment shown in FIG. 19;

FIG. 21 is a perspective view showing a conventional postcard.

FIG. 22 is a sectional view taken along line XXIII-XXIII in FIG. 21;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Postcard 12 Postcard mount 14 Coating material 16 Base material 20 1st thermoadhesive resin layer 22 2nd thermoadhesive resin layer

Claims (1)

[Claims] 1. A postcard comprising a postcard mount and an adhesive stuck to at least a part of a surface of the postcard mount, wherein the adhesive is dimensionally stabilized by a dimension stabilizer. A first heat-adhesive resin layer formed on a main surface of the sheet substrate, made of a heat-adhesive resin having delayed tack properties, and having a weak adhesive force; and the first heat-adhesive resin layer Is formed on a part of the surface of the base material, and is made of a delayed tacky thermo-adhesive resin, and includes a second thermo-adhesive resin layer having a strong adhesive force, wherein the adhesive material is located at a position away from the postcard mount. The first thermal adhesive resin layer and the second thermal adhesive property are activated after activating the first thermal adhesive resin layer and the second thermal adhesive resin layer having delayed tack properties. Affixed to the surface of the postcard mount by a resin layer, Ki.