JPH0825347B2 - Postcards and their manufacturing methods - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a postcard coated so that a part of a postcard cannot be seen. It relates to postcards and their manufacturing methods, where the legitimate recipients can view the secrets as appropriate.

(Prior Art) In recent years, the number of mail items that describe confidential matters such as bankbooks such as bank deposit balances has increased, but the column for describing confidential matters is hidden during mailing, making it easy for authorized recipients. It is desired to develop a postcard formed so that its contents can be seen. For example, as shown in Japanese Utility Model Publication No. 54-37089, a part, for example, a part in a frame is partially peeled,
A postcard has been developed that allows you to see the secrets beneath it.

(Problems to be solved by the invention) However, in order to enable partial peeling in this way, as seen in JP-B-54-37089, the entire surface of the cover sheet is dried. The adhesive is applied to form a bonding surface, and the other postcard base is subjected to a peeling treatment such as silicon processing so that only the inside portion of the frame can be peeled off, for example. Need to be partially removable.
Therefore, at the time of manufacturing them, a coating process of dry glue is required on the cover side, and a peeling treatment process such as silicon processing is required on the postcard mount side.
Inevitably, the structure of the postcard becomes complicated, and the number of manufacturing processes increases, resulting in an increase in manufacturing cost.

Moreover, since this postcard has nothing to hook a finger or nail in the frame, it is difficult to peel it off.

Therefore, the main object of the present invention is that it is not necessary to apply a surface treatment to the postcard mount, and it can be partially peeled off by a post-treatment (heating) of a partial temporary sticking adhesive material that covers secret matters and the like. By dividing the part into a part that can be bonded and a part that is completely bonded, secret items are hidden during mailing, and the legitimate recipient can easily peel off the partial temporary adhesive patch and see the contents. It is to provide a method for manufacturing postcards and their postcards.

(Means for Solving Problems) A first invention includes a postcard mount and a partial temporary adhesive patch that is adhered to the postcard and covers at least a part thereof. , The heat-adhesive resin layer is formed on the main surface of the base material, and the main surface of the heat-adhesive resin layer has an adhesion-inhibiting layer that partially reduces the adhesive strength of the heat-adhesive resin layer and weakly adheres it to the postcard mount. The adhesion-inhibiting layer is formed such that, when the thermo-adhesive resin layer is heated and adhered, it exhibits adhesiveness at a higher temperature than the thermo-adhesive resin layer or does not exhibit adhesiveness, The part of the base material on which the adhesion-inhibiting layer is formed is a postcard in which a cut is formed from one end to the other end, and the base is detachably formed by the cut.

A second invention is a step of printing / coating an image line on a postcard mount, a heat-adhesive resin layer is formed on a main surface of a base material, and a heat-adhesive resin layer is partially bonded on the main surface of the heat-adhesive resin layer. When the heat-adhesive resin layer is heated and adhered by weakly adhering the heat-adhesive resin to the postcard backing paper and adhering at a higher temperature than the heat-adhesive resin layer, The step of forming an adhesion-inhibiting layer so as not to show the step of manufacturing a partial temporary-adhesive patch, and the base material of the partial temporary-adhesive patch is from one end to the other end where the adhesion-inhibiting layer is formed. The step of forming a cut line and the heat-adhesive resin layer side of the partial temporary sticking adhesive material are joined to the postcard mount, and the partial temporary sticking adhesive material is heated and pressed to attach the heat adhesive resin layer to the postcard mount. This is a method of manufacturing a postcard including a process of making.

(Operation) According to the present invention, the adhesive surface of the partially-temporarily-adhesive patch on the postcard mount is weakly postcard because the adhesive force between the exposed portion of the thermoadhesive resin layer and the thermoadhesive resin layer is reduced. Since it is divided into an adhesion-inhibiting layer that adheres to the backing paper, when it is heated and applied to the postcard-backing paper, the exposed portion of the heat-adhesive resin layer is strongly adhered to the postcard-backing paper, forming an adhesion-inhibiting layer. In the part that has been attached, it is weakly adhered to the postcard mount.

The part of the base material on which the adhesion-inhibiting layer is formed is easily torn and separated by the cut line formed from one end to the other end.

(Advantageous Effects of the Invention) According to the present invention, the adhesive surface of the partially-temporarily-adhesive patch on the postcard mount has a portion where the thermoadhesive resin layer formed on the main surface of the base material is exposed and the thermal adhesiveness. The part that reduces the adhesive strength of the resin layer and is weakly adhered to the postcard mount and is divided into the part where the adhesion-inhibiting layer is formed, and the part where the heat-adhesive resin layer is exposed when heated and adhered to the postcard mount In (1), it is completely adhered to the postcard mount, and in the portion where the adhesion-inhibiting layer is formed, it is bonded weaker than the postcard mount. Therefore,
In the adhesion-inhibiting layer portion, the partial temporary sticking adhesive can be separated relatively easily from the postcard mount, and various information formed on the main surface of the postcard mount can be seen.

Moreover, the postcard divided into the temporarily adhered part and the completely adhered part can be obtained by heating and adhering the partial temporary adhesive patch to the postcard mount without processing the postcard mount. In the manufacturing of postcards, it is only necessary to heat the postcards, and the range of use is wide.

Then, a legitimate recipient can easily tear through the cuts formed in the base material of the partial temporary sticking patch.

Moreover, at the time of manufacturing, it is only necessary to process the partial temporary sticking material, and there is no need to process the postcard mount,
The manufacturing process can be simplified, and the sticking device for sticking material used for manufacturing a postcard can be easily simplified.

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

(Embodiment) FIG. 1 is a perspective view showing a postcard according to the present invention.

 FIG. 2 is a partial sectional view of the above embodiment.

This postcard includes a postcard mount 10 formed in the size of a government-made postcard and a partial temporary adhesive patch 12 attached to a part of the postcard mount 10.

The partial temporary sticking adhesive material 12 includes a base material 12, and the base material 14
Is formed of a relatively flexible material such as paper, synthetic resin film and the like, which can be cut with scissors,
A concealing layer 16 is formed on one main surface of the base material 14.

The hiding layer 16 is formed by, for example, solid silver printing using silver ink or the like, or 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 16, for example, a heat-adhesive resin is extruded for coating while being heated, or is dissolved in a solvent or dispersed in water and printed by gravure or silk screen to form a heat-adhesive resin layer 18. Are formed.

This heat adhesive resin layer 18 is, for example, 100 ° C to 200 ° C.
It is formed so that it can be melted at a temperature of 10 ° C. and can be completely bonded to a postcard board 10 made of paper, for example.

On the main surface of the heat-adhesive resin layer 18, an adhesion-inhibiting layer 20 that partially reduces the adhesive force of the heat-adhesive resin layer 18 and weakly adheres it to the postcard mount 10 is partially formed. In this embodiment, a portion for completely adhering the heat-adhesive resin layer 18 is formed on the left and right edge sides of the postcard mount 10.

This adhesion-inhibiting layer 20 is, for example, the thermo-adhesive resin layer 18 described above.
When heated and melted, a resin having no adhesiveness or a resin having an adhesiveness only at a temperature higher than the resin selected as the thermal adhesive resin forming the thermal adhesive resin layer 18 is appropriately selected and printed. -It is formed by coating.

An EVA adhesive can be selected as an example of the heat adhesive resin. The composition of this adhesive is composed of EVA (ethylene-vinyl acetate copolymer resin), tackifier, wax and antioxidant, and a plasticizer and a filler may be supplementarily added.

Examples of the tackifier include glycerin ester of partially hydrogenated rosin, glycerin ester of rosin, pentaerythritol modified rosin, petroleum resin, α-methylstyrene / vinyltoluene copolymer, terpene oil polymer and terpene phenol polymer.

As the wax, paraffin wax, microcrystalline wax, low molecular weight polyethylene wax,
Fischer-Tropsch wax, castor wax,
Chlorinated paraffin, etc.

As antioxidants, hindered phenolic compounds,
Examples include salicylic acid compounds, benzophenone compounds, benzotriazole compounds, phosphorus compounds, sulfur compounds, and organometallic compounds.

Examples of heat-adhesive resins other than the above examples include polyethylene, ethylene-ethyl acrylate copolymer resin, ethylene-acrylic acid copolymer resin, ethylene-methyl acrylate copolymer resin, ethylene-methyl methacrylate copolymer resin, ethylene. -Methacrylic acid copolymer resin, ionomer resin, polymethylpentene resin, ethylene-vinyl alcohol copolymer resin, vinylidene chloride resin, vinyl chloride-
Vinyl acetate copolymer resin, polyamide resin, styrene-acrylic acid copolymer resin, polystyrene resin, polyacrylic acid copolymer resin, polyester resin, polyurethane resin, waxes and the like can be selected. When printing or coating with these, it is preferable to use them while heating or by dissolving them in a solvent or dispersing them in water.

Further, the adhesion-inhibiting layer 20 is formed of a material that exhibits adhesiveness at a temperature higher than that of the thermoadhesive resin or does not exhibit adhesiveness at all when the thermoadhesive resin layer is heated and adhered. It Of course, although there are various structures, for example, even if the adhesion-inhibiting layer 20 is formed on the surface of the heat-adhesive resin layer 18, it is coarsely or discontinuously formed like a mesh when viewed microscopically. The heat-adhesive resin layer 18 is formed so that it oozes out during heating, and the heat-adhesive resin layer 18 is formed during heat-adhesion.
Although it inhibits the adhesive strength of 18, it may be configured to adhere lightly.

For example, an ultraviolet curable ink can be selected, and this ultraviolet curable ink is composed of a colorant, a prepolymer, a monomer, a photoinitiator and an additive. As the prepolymer, epoxy acrylate, polyol acrylate,
Examples include polyester acrylate, polyether acrylate, unsaturated polyester, cationic polymerizable resin, melamine acrylate, unsaturated polybutadiene, acrylate of drying oil, and silicone acrylate.

Monomers such as 2-ethyl acrylate, 2-hydroxyethyl acrylate, 2-hydroxypropyl acrylate and 2-hydroxyethyl methacrylate, monofunctional acrylates, 1,3-butanediol diacrylate, 1,4-butanediol diacrylate, 1,6-
Hexanediol diacrylate, diethylene glycol diacrylate, neopentyl glycol diacrylate, polyethylene glycol # 400 diacrylate,
Bifunctional acrylates such as hydroxybivalic acid ester neobenzyl glycol diacrylate, diethylene glycol dimethacrylate, polyethylene glycol # 200 dimethacrylate, trimethylolpropane triacrylate, pentaerythritol triacrylate, trimethylolpropane trimethacrylate, trimethylolethane trimethacrylate, Examples thereof include polyfunctional acrylates such as tetramethylolmethane tetraacrylate and dipentaerythritol hexaacrylate. Furthermore, vinyl ethers, itaconic esters and N-vinylpyrrolidone are also used.

As the photoinitiator, biacetyl, acetophenone, benzophenone, Michler's ketone, benzyl, benzoin, benzoin isobutyl ether, benzyl dimethyl ketal, tetramethyl thiuram sulfide, azobisisobutyl nitrile, benzoyl peroxide, 1-
Examples thereof include hydroxycyclohexyl phenyl ketone, α-hydroxyisobutylphenone and p-isopropyl-α-hydroxyisobutylphenone, and benzophenone and its derivatives are particularly used.

As the sensitizer, n-butylamine, di-n-butylamine, triethylamine, aliphatic amines such as diethylaminoethyl methacrylate, aromatic group-containing amines, nitrogen heterocyclic compounds such as piperidine, allyl compounds,
Sulfur compounds such as O-tolylthiourea, sodium diethyldithiophosphate, and soluble salts of aromatic sulfinic acid, N, N-disubstituted-p-aminobenzonitrile compounds, tri-n-butylphosphine, sodium diethylthiophosphate, etc. Phosphorus compounds, Michler's ketone,
Examples thereof include N-nitrosohydroxylamine derivatives, nitrogen compounds such as oxazoline compounds, carbon tetrachloride, and chlorine compounds such as hexachloroethane.

Examples of the additive include an anti-mist agent, a slip agent, an antioxidant, a drying agent, a wetting agent, and a wax.

Examples of colorants include organic pigments, extender pigments, carbon black, titanium white, and metal powder.

In this partial temporary sticking adhesive material 12, cuts 22a and 22b are formed relatively close to each other and continuously from one end to the other end in the vicinity of the left end edge in the portion where the adhesion inhibition layer 20 is formed. The base material 14 is formed so that it can be separated. Moreover, the base material 14 between the cuts 22a and 22b is recessed so that a finger or a nail can be easily hooked.
The base material 14 between 22 and 22b can be separated.
A concave piece may be formed at the tip of the base material 14 between the cuts 22a and 22b for easy picking with a finger.

Further, in the vicinity of the right edge, the partial cut-off adhesive material 12 peeled off from the postcard mount 10 can be cut off from the portion completely adhered by the heat-adhesive resin layer 18 so as to cut off the cut 24.
Are formed.

 Next, a method for manufacturing this postcard will be described.

First, a method of manufacturing the partial temporary sticking material will be described.

First, a paper for forming the base material 14 is prepared, and the concealment layer 16 is formed on one main surface of the paper by solid printing with silver ink, for example, by a known printing method such as offset printing or coating. .

Next, as shown in FIG. 4, the laminate obtained by winding the base material 14 on which the hiding layer 16 is formed into a roll is loaded on the holding roller 32 of the partial temporary sticking patch manufacturing device 30.

The base material 14 held by the holding roller 32 has its one end unwound and is guided to the thermal adhesive resin application device 34.

This heat-adhesive resin coating device 34 includes a cover layer 16 for the base material 14.
On the surface of the side, for example, for printing and applying the heat-adhesive resin 18a whose main component is the above-mentioned ethylene-vinyl acetate copolymer resin, the heat-adhesive resin 18a is applied while heating to an appropriate temperature. To do.

Then, the base material 14 on which the heat-adhesive resin 18a is printed / applied is guided to a dryer 36 including a device for blowing cold air, and the heat-adhesive resin 18a is dried to form a heat-adhesive resin layer 18.

Next, the base material on which the heat-adhesive resin layer 18 is formed is guided to the printing / application device 40 for the adhesion inhibitor 20a.

The adhesion inhibitor coating device 40 is a printing / coating device that uses a known printing / coating method such as letterpress printing, gravure printing, silk screen printing, and offset printing.

When printing and applying the above-mentioned ultraviolet curable ink, for example, a letterpress printing device is selected, and the ultraviolet curable ink is applied at 4 to 6 g / m ² .

Next, the substrate 14 on which the adhesion inhibitor 20a is printed / applied.
Is led to the solidification device 44. As the solidifying device 44,
In this embodiment, a high pressure mercury lamp is adopted and
It is formed to irradiate 160 W / cm.

In this way, as shown in FIG. 5, the hiding layer 16, the heat-adhesive resin layer 18, and the adhesion-inhibiting layer 20 are sequentially provided on both main longitudinal sides of the base material 14 at predetermined longitudinal intervals on the main surface of the base material 14. A laminated partial temporary attachment material 12 is formed.

This partial temporary sticking adhesive material 12 is continuously guided to a notch forming device 48 that forms the notches 22a, 22b and the notches 24 for separation, and at intervals, the notches 22a, 22b and the notches 2 for separation.
Form 4 and roll up again.

The cuts 22a and 22b and the cut-off cut 24 are formed on the substrate 14
When the sheet is formed of paper, it is formed along the flow direction of the paper, that is, along the eyes of the fibers, and the base material 14 is relatively easily separated.

Subsequently, the base material 14 wound into a roll is guided to a partial temporary sticking adhesive material sticking device 50 for sticking the partial temporary sticking adhesive material 12 to the postcard mount 10, as shown in FIG. Get burned. At this time, the postcard backing paper 10 may be a postcard-made postcard that has been cut and shaped in advance, or a plurality of postcards may be continuously formed via appropriate cuts. However, in order to cover a secret item such as a bank deposit balance formed on a part of the surface of the postcard with this partial temporary sticking adhesive material 12, it is necessary to preliminarily select an appropriate part of the postcard, for example, an appropriate column on the lower surface of the postcard. It is necessary to print the characters in advance.

When the partial temporary sticking adhesive material 12 is adhered to the lower column of a postcard, for example, as shown in FIG. 6, the postcard mount 10 is sequentially fed and the partial temporary sticking adhesive roll is wound. Cut out one end of the material 12, cut it to an appropriate size with a cutter etc., and then join one piece of the partially tacked adhesive material 12 that has been cut to an appropriate part of the postcard mount 10 sent in. Postcard mount 10 with heating roller
While pressing the surface of the heat-adhesive resin layer 18 and the exposed part of the heat-adhesive resin layer 18 and the heat-adhesive resin layer 18 under the adhesion-inhibiting layer 20 are activated by heating, and may be attached to the surface of the postcard mount 10. .

If the postcard mount 10 is heat-bonded in this manner, the partial temporary adhesive patch 12 is strongly adhered to the postcard mount 10 at the exposed portion of the heat-adhesive resin layer 18, and the part where the adhesion-inhibiting layer 20 is formed. In, the lower thermoadhesive resin layer 18 is weakly adhered. Therefore, as shown in FIGS. 3A and 3B, in the portion where the adhesion-inhibiting layer 20 is formed, the partial temporary-adhesive patch 12 can be separated relatively easily from the postcard mount 10.

As an example of the base material 14, other than the above-mentioned embodiment, synthetic paper,
A film such as cellophane, polyethylene, polyester, or an aluminum foil can be used. When an adhesive piece obtained by separating the adhesive material 12 is attached to the postcard mount 10,
It is preferable to select a relatively soft material so that this adhesive piece will not be inadvertently peeled off from the postcard mount 10 against the adhesive force of the heat-adhesive resin layer 18 by forming the adhesion-inhibiting layer 20.

Further, when a material having excellent hiding property such as aluminum foil is selected as the base material 14, the hiding layer 16 may not be formed as in the above-described embodiment.

In addition, as the base material 14, continuous paper wound in a roll shape is selected in the above-mentioned embodiment, but a so-called single-wafer type base material separated into each sticking piece may be selected.

Further, the surface of the base material 14 may be appropriately subjected to printing suitable for the properties of the postcard, and in the case of continuous ones as in the above-described embodiment, for example, detection for detecting the feed pitch of the base material 14. The mark (arrow) may be printed in black or the like.

In the above-mentioned embodiment, the adhesion-inhibiting layer 20 is formed in a strip shape at appropriate intervals in the width direction of the base material 14, but as shown in FIG. In the vicinity, a portion where the adhesion-inhibiting layer 20 is not formed may be provided in a spot shape. By doing so, a portion where the heat-adhesive resin layer 18 is exposed in a spot shape is formed in the vicinity of both end edges of the base material 14, and this adhesive material 12 is used as a postcard mount.
It is possible to prevent the adhesive material 12 from being inadvertently peeled from the postcard mount 10 from the vicinity of the longitudinal edge of the base material 14 when the adhesive material 12 is attached to the base material 14.

[Brief description of drawings]

FIG. 1 is a perspective view of a postcard which is an embodiment of the present invention. FIG. 2 is a partial sectional view of the above embodiment. FIG. 3A is a perspective view showing a state in which the partial temporary adhesive patch is peeled off, and FIG. 3B is a partial sectional view thereof. FIG. 4 is an illustrative view of a manufacturing apparatus showing an example of a method for manufacturing a partial temporary sticking patch. FIG. 5 is a perspective view of a partial temporary sticking material. FIG. 6 is an illustrative view of a manufacturing apparatus showing a method for sticking the above-mentioned embodiment to a postcard mount. FIG. 7 is a modification of the partial temporary sticking material. In the figure, 10 is a postcard mount, 12 is a partial temporary adhesive patch, and 14
Is a base material, 16 is a hiding layer, 18 is a heat-adhesive resin layer, 20 is an adhesion-inhibiting layer, and 22a and 22b are notches.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-83578 (JP, A) JP-A-54-34898 (JP, A) Actual opening 61-128672 (JP, U) Actual opening 62- 9571 (JP, U) Actually opened 62-9279 (JP, U) Actually opened 53-140533 (JP, U) Actually opened 61-133531 (JP, U)

Claims (17)

[Claims] 1. A postcard mount, and a partial temporary sticking adhesive that is adhered to the postcard mount and covers at least a part thereof, wherein the partial temporary sticking adhesive has thermal adhesiveness to a main surface of a base material. A resin layer is formed, and on the main surface of the heat-adhesive resin layer, an adhesion-inhibiting layer that partially weakens the adhesive force of the heat-adhesive resin layer and weakly adheres to the postcard mount is formed. Is formed so that, when the heat-adhesive resin layer is heated and bonded, it exhibits adhesiveness at a temperature higher than that of the heat-adhesive resin layer or does not exhibit adhesiveness, and an adhesion-inhibiting layer is formed. A postcard in which a cut is formed from one end to the other end of the base material of the above portion, and the base material is detachably formed by the cut. 2. The postcard according to claim 1, wherein the partial temporary adhesive patch is adhered to a confidential matter portion on the surface of the postcard mount. 3. The postcard according to claim 1 or 2, wherein the heat-adhesive resin layer is coated with a heat-adhesive resin agent over the entire one main surface of the base material. 4. The cover material according to claim 1, wherein the base material has a concealment layer formed on the main surface on the side where the heat adhesive resin layer is formed.
A postcard according to any one of items 1 to 3. 5. The postcard according to claim 1, wherein the concealing layer is formed by printing and coating silver ink. 6. The postcard according to claim 1, wherein the concealing layer is formed by laminating aluminum foils. 7. The postcard according to any one of claims 1 to 6, wherein the adhesion-inhibiting layer is formed by printing and coating an ultraviolet curable ink. 8. The postcard according to any one of claims 1 to 7, wherein the base material is made of paper, and the cut line is formed along a flow direction of paper making. . 9. A step of printing / coating an image on a postcard board, a heat-adhesive resin layer is formed on a main surface of a base material, and the heat-adhesive resin layer is partially formed on the main surface of the heat-adhesive resin layer. When the heat-adhesive resin layer is adhered to the postcard board by weakening the adhesive force of the adhesive resin layer and then the heat-adhesive resin layer is heated and adhered, it exhibits adhesiveness at a temperature higher than that of the heat-adhesive resin layer, or A step of forming an adhesion-inhibiting layer so as not to exhibit adhesiveness to produce a partial temporary-adhesive patch, and the base material of the partial temporary-adhesive patch is one end of a part where the adhesion-inhibiting layer is formed To the other end, and a step of forming a notch, the heat-adhesive resin layer side of the partial temporary sticking adhesive material and the postcard mount are joined, and the partial temporary sticking adhesive material is heated and pressed to heat-bond the resin layer. A method of manufacturing a postcard, which includes a step of attaching the postcard to a postcard mount. 10. The partial temporary sticking patch is stuck to a portion of the surface of a postcard board on which confidential matters are stated.
Manufacturing method of postcards described in paragraph. 11. The thermoadhesive resin layer is formed by printing / coating a thermoadhesive resin agent over the entire one main surface of the substrate.
A method for manufacturing a postcard according to claim 9 or 10. 12. The method of manufacturing a postcard according to claim 9, wherein a concealing layer is formed on the main surface of the base material on which the heat-adhesive resin layer is formed. 13. The concealing layer is formed by printing / coating with a silver ink.
The method of manufacturing a postcard as described in any of the items. 14. The method of manufacturing a postcard according to claim 9, wherein the hiding layer is formed by laminating aluminum foil. 15. The method of manufacturing a postcard according to claim 9, wherein the adhesion-inhibiting layer is formed by printing and coating an ultraviolet curable ink. 16. The partial temporary sticking patch is formed of a sticky paper that is long and rolled into a roll, and is attached to a postcard board while cutting the long partial temporary sticky patch. A method of manufacturing a postcard according to any one of claims 9 to 15, which is to be worn. 17. The method according to any one of claims 9 to 16, wherein the base material of the partial temporary sticking patch is made of paper, and the cut line is formed along the flow direction of the paper during paper making. How to make a postcard on the crab.