EP0414923A1

EP0414923A1 - Post card and method of its production

Info

Publication number: EP0414923A1
Application number: EP90904676A
Authority: EP
Inventors: Noboru Matsuguchi; Tadashi Matsuguchi
Original assignee: Daimatsu Kagaku Kogyo Co Ltd
Current assignee: Daimatsu Kagaku Kogyo Co Ltd
Priority date: 1989-03-17
Filing date: 1990-03-16
Publication date: 1991-03-06
Also published as: NL9020378A; CA2028810A1; LU87844A1; AU5266690A; GB9024264D0; GB2243112A; WO1990011192A1; EP0414923A4

Abstract

A postcard comprising a postcard material (1) and a covering material (14) formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof, said covering material comprising a base material (18) having a suppresiveness (20), a primer layer (22) formed at a principal surface of the base material, and a heat adherent resin layer (24) formed on a principal surface of the primer layer, or a first heat adherent resin layer (28) and a second heat adherent resin layer (29), with a strong adhesion on a first heat adherent resin layer said covering material is adhered to a surface of the postcard material with the heat adherent resin layer or the first and second heat adherent resin layer.

The adhesion of the first heat adherent resin layer is increased by the primer layer. Therefore, the first heat adherent resin layer is adhered strongly to the base material or the suppression.

When peeled off the base material, the base material, the primer layer and the first heat adherent resin layer are peeled off from the postcard material in the postcard material including the base material having the suppressiveness, while, the base material, the suppression layer, the primer layer and the first heat adherent resin layer are peeled off from the postcard material in the postcard material including the suppression layer having the suppressivess. Therefore, the surface of the postcard can be seeing.

According to the present invention, a postcard which is able to cover preferably and temporarily an information matter of the surface of the postcard material without any process on the surface of the postcard material, and a manufacturing method thereof are obtained.

Description

Technical field

The present invention relates to a postcard and a manufacturing method thereof, more specifically, the present invention relates to a postcard for covering temporarily a portion provided with a confidential matter formed on a surface of a postcard material by adhereing it the portion, and a manufacturing method thereof.

Background Art

As a conventional postcard which constitutes a background of this invention, there is material including a postcard material formed a confidential matter on a surface thereof, and a sticking material which a pressure sensitive adhesive layer is formed on the reverse side of postcard material.
In this conventional postcard, a surface of a postcard material can be covered by adhereing it on the surface of the postcard material, however, it is not preferably used for covering temporarily the confidential matter, since the sticking material is hardly peeled off from the surface of the postcard material.
In order to facilitate peeling the sticking material from the surface of the the material, it is thinking that a peeling process such as silicon processing is applied on the surface of the postcard material so as to be peeled off the sticking material. However, an applying the peeling process on the postcard material complicates a machinery, and the cost for manufacturing increases. Therefore, it is hardly to apply the peeing process. And, further, if peeling process is applied on the surface of the postcard material, the sticking material is separated from the postcard material inadvertently.

Disclosure of Invention

Therefore, it is a principal object of the present invention to provide a postcard material, which is able to cover preferably and temporarily a part of surface of the postcard material without any process on the surface of the postcard material, and a manufacturing method thereof.
The first invention is a postcard comprising a postcard material, and a covering material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof, said covering material comprising a base material having a suppresiveness, a primer layer formed at a pincipal surface of the base material, and a heat adherent resin layer formed on a principal surface of the primer layer, said covering material is adhered to a surface of the postcard material by the heat adherent resin layer.
The second invention is a method for manufacturing a postcard of claim 1 comprising a step for preparing a postcard stuff including a postcard material, and a base material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof, a step for manufacturing a covering material by (A) a step for forming a primer layer on one principal surface of the base material, and (B) a step for forming a heat adherent resin layer on a surface of the primer layer, and a step for adhering the covering material to a part of surface of the postcard material with the heat adherent resin layer in a folded-back fashion.
The third invention is a postcard comprising a postcard material, and a covering material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof, said covering material comprising a base material, a suppression layer formed on one principal surface and having a suppresiveness, a primer layer formed at a pincipal surface of the suppression layer, and a heat adherent resin layer formed on a principal surface of the primer layer, and said covering material is adhered to a surface of the postcard material with the heat adherent resin layer.
The forth invention is a method for manufacturing a postcard of claim 3 comprising a step for preparing a postcard stuff including a postcard material, and a base material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof, a step for manufacturing a covering material by (A) a step for forming a suppression layer having a suppressiveness on one principal suface of the base material, (B) a step for forming a primer layer on one principal surface of the suppression layer, and (C) a step for forming a heat adherent resin layer on a surface of the primer layer, and a step for adhering the covering material to a part of surface of the postcard material with the heat adherent resin layer in a folded-back fashion.
The fifth invention is a postcard comprising a postcard material, and a covering material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a partof surface thereof, said covering material comprising a base material having a suppresiveness, a primer layer formed at a pincipal surface of the base material, a first heat adherent resin layer with a weak adhesion formed on a principal surface of the primer layer, a second heat adherent resin layer with a strong adhesion formed on a principal surface of the first heat adherent resin layer, and said covering material is adhered to a surface of the postcard material with the heat adherent resin layer.
The sixth invention is a method for manufacturing a postcard of claim 5 comprising a step for preparing a postcard stuff including a postcard material, and a base material formed integral with the postcard material and adhered to a part of surface of the postcard materialin, a folded-back fashion and covering a part of surface thereof a step for manufacturing a covering material by (A) a step for forming a primer layer on one principal surface of the base material, (B) a step for forming a first heat adherent resin layer with a weak adhesion on a surface of the primer layer and (C) a step for forming a second heat adherent resin layer with a strong adhesion or a surface of the first heat adherenst resin layer, and a step for adhering the covering material to a part of surface of the postcard material with the heat adherent resin layer in a folded-back fashion.
The seventh invention is a postcard comprising a postcard material, and a covering material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof, said covering material comprising a base material, a suppression layer formed on one principal surface and having a suppresiveness, a primer layer formed at a pincipal surface of the suppression layer, and a first heat adherent resin layer with a weak adhesion formed on a principal surface of primer layer, a secomd heat adherent resin layer with a strong adhesion formed on a principal surface of the first heat adherent resin layer, and said covering material is adhered to a surface of the postcard material with the heat adherent resin layer.
The eighth invention is a method for manufacturing a postcard of claim 7 comprising a step for preparing a postcard stuff including a postcard material, and a base material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof, a step for manufacturing a covering material by (A) a step for forming a suppression layer having a suppressiveness on one principal suface of the base material, (B) a step for forming a primer layer on one principal surface of the suppression layer, (C) a step for forming a first heat adherent resin layer with a weak adhesion on a surface of the primer layer, and (D) a step for forming a second heat adherent resin layer with a strong adhesion on a surface of the first heat adherent resin layer, and a step for adhering the covering material to a part of surface of the postcard material with the heat adherent resin layer in a folded-back fashion.
The above and other objects, features, aspect and advantages of the present invention will become more apparent from the following detailed description of the embodiments made in connection with the accompanying drawings.

Brief Description of Drawings

Fig. 1A and Fig. 1B are perspective views showing one embodiment of the present invention.
Fig. 2A and Fig. 2B are sectional views showing an aforementioned embodiment.
Fig. 3 is a diagrammatical view showing one example of manufacturing process of the postcard shown in Fig. 1A and Fig. 2A.
Fig. 4 is a perspective view of a continuous postcard stuff.
Fig. 5 is a diagrammatical view showing a state which a continuous covering material of a postcard stuff is adhered to postcard material in a folded-back fashion.
Fig. 6A and Fig. 6B are views showing an another embodiment of the present invention, in which Fig. 6A is a perspective view thereof, and Fig. 6B is a sectional view thereof.
Fig. 7A and Fig. 7B are views showing a state which the base material of the postcard shown in Fig. 6A and Fig. 6B is peeled off from the postcard material, in which Fig. 7A is a perspective view thereof, and Fig. 7B is a sectional view thereof.
Fig. 8A and Fig. 8B are views showing a separate embodiment of the present invention, in which Fig. 8A is a perspective view thereof, and Fig. 8B is a sectional view thereof.
Fig. 9A and Fig. 9B are views showing a state which a narrow part of the base material of the postcard shown in Fig. 8A and Fig. 8B is peeled off, in which Fig. 9A is a perspective view thereof, and Fig. 9B is a sectional view thereof.
Fig. 10 is a sectional view showing a postcard as a separate embodiment of the present invention.
Fig. 11 is a sectional view showing a state which a covering material of the aforementioned embodiment is cut and is peeled off from the postcard material.
Fig. 12 is an illustrative view showing an embodiment of a method for manufacturing a postcard shown in Fig. 10.
Fig. 13 is a sectional view showing a separate embodiment of the present invention.
Fig. 14 is a sectional view showing a state whilch the covering material of the postcard shown in Fig. 13 is peeled off.
Fig. 15 is a plane view showing a separate embodiment of the present invention.
Fig. 16 is a plane view showing a separate variation of the postcard shown in Fig. 15.

Best Mode for carrying out the Invention

Fig. 1A and Fig. 1B are perspective views showing one embodiment of the present invention.
Fig. 2A and Fig. 2B is a sectional views showing an aforementioned embodiment.
The postcard comprises a postcard stuff 10. The postcard stuff 10 comprises a postcard material 12 of standard postcard size and a covering material 14 adhered on a part of the postcard material 12. The covering material 14 is formed integral with the postcard material 12 in a manner of extending from one end thereof and is stuck to the postcard material 12 in a folded-back fashion.
Further, on the surface of the postcard material 12, a lottery part 16a such as a letter "winning" or "lose" and a confidential matter 16b such as a information of the finance or the insurance are formed. The lottery part 16a and the confidential matter 16b are formed by printing on the surface of the postcard material 12. Meanwhile, the lottery part 16a and the confidential matter 16b may be formed by writing with a pen.
The covering material 14 compreses a base material 18 which is formed integral with a postcard material 12 in a manner of extending from one end thereof.
The base material 18 is formed with a relatively soft material such as paper, synthetic resin film and the like which can be cut by a scissors or the like.
A suppression layer 20 is formed on one main surface of the base material 18. The suppression layer 20 is formed by printing a silver ink and the like or laminating a film material such as an aluminum foil having a suppressiveness with adhesives.
On the surface of the suppression layer 20, a primer layer 22 for increasing an adhesion of a heat adherent resin layer 24 discribed later is formed. The primer layer 22 is formed by coating a resin such as vinyl chloride-vinyl acetate copolymer on the surface of the suppression layer 20.
On the surface of the primer layer 22, the heat adherent resin layer 24 is formed by coating a heat adherent resin as heating and extruding it, or by gravure or silk screen printing as dissolving it in a solvent or despersing in water.
The heat adherent resin layer 24 is formed to melt at about 100°C to 200°C so as to be adhered to the postcard material 12 made of paper or the like.
As an example of said heat adherent resin, adhesives of EVA group may be selected. The composition of the adhesive comprises an EVA (ethylene-vinyl acetate copolymerized resin), a tackifier, a wax and an anti-oxidant, to which sometimes a release agent such as silicon for reducing the adhesion, a plasticizer and a filler are added as an adjutant.
As the tackifier, there are glycerin of partially hydrogenated rosin, glycerin-ester of rosin, pentaerythritol modified rosin, petroleum resin, α-methylstyrene/vinyl toluene copolymer, terpene oil polymer and terpene-phenol polymer, etc.
As the wax, there are paraffin wax, microcrystalline wax, low molecular weight polyethylene wax, Fischer-Tropsch wax, caster wax and chlorinated paraffin, etc.
As the anti-oxidant, there are hindered phenol group compound, salicylic acid group compound, benzophenone group compound, benzotriazol group compound, phosphorus group compound, sulfur group compound, organic metal group compound, etc.
As the heat adherent resins other than the aforesaid examples, there are stylene-butadiene-stylene copolymer, stylene-isoprele-stylene copolymer, polyethylene, ethylene-ethylacrylate copolymerized resin, ethylene-acrylic acid copolymerized resin, ethylene-methyl acrylate copolymerized resin, ethylene-methyl methacrylate, ethylene-methacrylic acid copolymerized resin, ionomer resin, polymethylpentene resin, ethylene-vinylalcohol copolymerized resin, vinylidene chloride resin, vinyl chloride-vinyl acetate copolymerized resin, polyamide resin, stylene-acrylic acid copolymerized resin, polystylene resin, polyacrylic acid copolymerized resin, polyester resin, polyurethane resin, waxes, etc. When printing and coating, these resins can be suitably used as heating or dissolving in a solvent or dispersing in water.
Next, a method of manufacturing the postcard will be explained.
First, continuous paper for forming the postcard stuff 10 is prepared. The postcard material 12 portion and the base material 18 portion are formed continuously in the direction of width of this continuous paper. Accordingly, the length of the continuous paper in the direction of width is a sum of the length of the postcard material 12 and the length of the base material 18. And the suppression layer 20 is formed on one main surface of the base material 18 of the continuous paper by allover printing with a silver ink, for example, by the known printing method as the offset printing or coating.
As showing Fig. 3, a rolled laminate comprising the postcard stuff 10 formed with the suppression layer 20 is mounted on a hold roller 32 of a manufacturing machine 30 for the covering material.
The postcard stuff 10 held by the hold roller 32 is loosen at one end and led to a resin coater 34. The resin coater 34 is designed to print and coat the resin 22a such as the aforesaid vinyl chloride-vinyl acetate copolymer on the suppression layer 20 of the base material 18.
The base material 18 onto which the resin 22a is printed and coated is then guided to a dryer 36, whereby the resin 22a is dried and the primer layer 22 is formed.
Next, the base material 18 formed with the primer layer 22 is directed to a heat adherent resin coater 40 for printing and coating the heat adherent resin 24a containing, for example, the aforesaid ethylene-vinyl acetate copolymerized resin as a main component. The heat adherent resin coater 40 is a printing or coating machine utilizing known printing and coating methods such as a typographic printing, gravure printing, silk screen printing, offset printing or the like.
By the heat adherent resin coater 40, the heat adherent resin 24a is printing or coating on the surface of the primer layer 22.
The base material 18 onto which the heat adherent resin 24a is printed or coated is led to a dryer 42, whereby the heat adherent resin 24a is dried and the first heat adherent resin layer 24 is formed.
Thus, as shown in Fig. 4, the covering material 14 of the postcard stuff 10 is formed with the suppression layer 20, the primer layer 22 and the heat adherent resin layer 24 on the surface of the base material 18.
The continuous postcard stuff 10 is wound round a take-up roller 44 again.
In this embodiment, as shown in Fig. 2A and Fig. 4, the suppression layer 20 is formed on one main surface of the base material 18, the primer layer 22 is formed on the surface of the suppression layer 20, and the heat adherent resin layer 24 is formed on the surface of the primer layer 22. The adhesion of the heat adherent resin layer 24 is increased by the primer layer 22. Therefore, the heat adherent resin layer 24 is adhered strongly to the base material 18, and adhered weakly to the postcard material 12.
When the aluminum foil and the like having a good suppressiveness is selected as the base material 18, the suppression layer 20 is not necessary. In this case, the primer layer 22 is formed on one main surface of the base material 18.
Further, as a material of the postcard stuff 10, a rolled continuous paper is selected, but a loose paper, that is to say, a separated paper may be selected.
Also, on the base material 18, any suitable printing which fits to properties of the postcard may be performed, or When the continuous material is used as aforesaid embodiments, for example, a detecting mark(arrow) for detecting feeding pitches of the base material 18 may be printed with a black color or the like.
Subsequently, this postcard stuff 10 is led to a covering material sticking apparatus sticking this covering material 14 to the postcard material 12. At this time, to cover a confidential matter such as a residual amount deposited in a bank which is formed on part of the surface of the postcard with the covering material 14, it is necessary to print proper characters in advance on a proper place, for example, the lower column of the postcard material.
In addition, in the case of making this covering material 14 adhere, for example, to the lower column of the postcard, as shown in Fig. 5, the postcard stuff 10 is fed sequentially, and it is folded back at the boundary between the postcard material 12 portion and the covering material 14 portion, and the covering material 14 and the postcard material 12 are bonded. Then, the surface of postcard stuff 10 is pressed by a pressing roller, and the covering material 14 is stuck to the surface of the postcard material 12. Then, the postcard stuff 10 is cut in a proper size, and the postcard of the present invention is formed.
In the adhered covering material 14, the adherent resin layer 24 is adhered strongly to the base material 18, and suppression layer 20 is adhered weakly to the postcard material 12. Thus, as shown in Fig. 1A and Fig. 1B, the covering material 14 can be peeled off relatively easily from the postcard material 12 by cutting it.
Also, the covering material 14 can be peeled off relatively easily by not cutting.
And, the lottery part 16a and the confidential matter 16b formed on a surface of the postcard material 12 can be seeing.
Fig. 6A and Fig. 6B are views showing an another embodiment of the present invention, in which Fig. 6A is a perspective view therof, and Fig. 6B is a sectional view thereof.
In this embodiment, cuts 26a and 26b forming with parforations are formed specifically in the upside and the downside of the base material 18, the suppression layer 20, the primer layer 22 and the heat adherent resin layer 24. The cuts 26a and 26b are formed by a perforator including a cutter roll so-called die roll or by a perforator including a die cutter having a cutter blade.
In this embodiment, when the center portion of the covering material 14 in the up-and-down direction is peeled off, as shown in Fig. 7A and Fig. 7B, the center portion can be peeled off relatively easily from the postcard material 12 by cutting the covering material 14 at the cuts 26a and 26b. Then, the lottery part 16a and the confidential matter 16b on the surface of the postcard material 12 can be seeing.
Fig. 8A and Fig. 8B are perspective views showing a separate embodiment of the present invention, in which Fig. 8A is a perspective view thereof, and Fig. 8B is a sectional view thereof. In this embodiment, a separate cut 26c is formed specifically in the base material 18, the suppression layer 20, the primer layer 22 and the heat adherent resin layer 24 on the inside of the cut 26b. The cut 26c is formed by a die roll together with the cuts 26a and 26b. Furthermore, a half circle cut portion 26d is formed at one end of the base material 18, the suppression layer 20, the primer layer 22 and the heat adherent resin layer 24 in between the cuts 26b and 26c.
In this embodiment, when the center portion of the covering material 14 in the up-and-down direction is peeled off, as shown in Fig. 9A and Fig. 9B, a narrow portion between the cuts 26b and 26c is peeled off, first. In this case, the narrow portion between the cuts 26b and 26c can be peeled off easily by hooking a finger to the cut portion 26d. Then, the lottery part 16a and the confidential matter 16b can be seen by bending the center portion of the covering material 14 in the up-and-down direction at the cut 26a or by cutting it at the cut 26a.
Meanwhile, in the embodiment shown in Fig. 8A and Fig. 8B a projection extending to the outside in between the cuts 26b and 26c may be formed in place of the cut portion 26d. Thus, the narrow portion of the covering material 14 is peeled off more easily by hooking the projection.
Also, a center portion of the covering material 14 may be formed so as to peel off from the postcard material 12 by forming a cut along the surrounding of the base material 18, the suppression layer 20, the primer layer 22 and the heat adherent resin layer 24,
Also, the lottery part 16a and the confidential matter 16b may be formed on the surface of the suppression layer 20 or the surface of the postcard material 12 when having the the suppression layer 20, and may be formed on one main surface of the base material 18 or the surface of the postcard material 12 when not having the suppression layer 20.
Fig. 10 is a sectional view showing a postcard as a separate embodiment of the present invention.
Fig. 11 is a sectional view showing a state which a covering material of the aforementioned embodiment is cut and is peeled off from the postcard material.
This postcard comprises a postcard stuff 10. The postcard stuff 10 comprises a postcard material 12 formed in the size of the goverment postcard, and a covering material 12 stuck to part of this postcard material 12. The covering material 14 is formed integral with the postcard material 12 in a manner of extending from one end thereof and is stuck to the postcard material 12 in a folded-back fashion.
A lottery part 16a wherein are shown letters such as "winning" or "blank" and a confidential matter 16b such as a information of the finance or the insurance are formed on the surface of the postcard material 12.
The covering material 14 comprises a base material 18 formed integral with the postcard material 12 in a manner of extending from one end thereof.
The base material 18 is formed with a relatively soft material such as paper, synthetic resin film and the like which can be cut by a scissors or the like. And on one main surface of the base material 18 a suppression layer 20 is formed.
On the surface of the suppression layer 20, a primer layer 27 for increasing an adhesion of a heat adherent resin layer 28 discribed layer is formed. The primer layer 27 is formed by coating a resin such as vinyl chloride-vinyl acetate copolymer on the surface of the suppression layer 20.
On the surface of the primer layer 27, the first heat adherent resin layer 28 is formed by coating a heat adherent resin with a weak adhesive strength as heating and extruding it, or by gravure or silk screen printing as dissolving it in a solvent or despersing in water and the firsts heat adherent resin layer 28 has a weak adhesive strength.
The first heat adherent resin layer 28 is formed to melt at about 100°c to 200°C so as to be adhered to the postcard material 12 made of paper or the like with a weak adhesive strength.
As an example of said heat adherent resin having a weak adhesive strength, the same adhesives as adhesives of the aforementioned embodiment shown in Fig. 1 may be selected.
Further, on the surface of the first heat adherent resin layer 28, a second heat adherent resin layer 29 having a strong adhesive strength is formed. In this embodiment, the second heat adherent resin layer 29 is formed at both sides in the lengthwise direction of the postcard material 12, that is, in the fixed width at the upside and downside of the covering material 14. Moreover, the second heat adherent resin layer 29 is formed at both sides in the breadthwise direction of the postcard material 12, that is, at right and left ends of the covering material 14 in spots. The second heat adherent resin layer 29 is formed by coating a heat adherent resin having a strong adhesive strength, for example adhesives of EVA group, stylene-butadiene-stylene copolymer, stylene-isoprele-stylene copolymer in parts.
In this case, for example, the tackifier is mixed more as compared with the heat adherent resin having a weak adhesive strength or the release agent is mixed less as compared with the heat adherent resin having a weak adhesive strength, in the heat adherent resin having a strong adhesive strentgth. The second heat adherent resin layer 29 may be formed at only both sides of upside and downside or both right side and left sides of the covering material 14.
In this case, the second heat adherent resin layer 28 may be formed in a fixed width or spots.
Next, a method of manufacturing the postcard shown in Fig. 10 will be explaned.
First, continuous paper for forming the postcard stuff 10 is prepared. The postcard material 12 portion and the base material 18 portion are formed continuously in the direction of width of this continuous paper. Accordingly, the length of the continuous paper in the direction of width is a sum of the length of the postcard material 12 and the length of the base material 18.
As showing Fig. 12, a rolled laminate comprising the postcard stuff 10 formed with the suppression layer 20 is mounted on a hold roller 132 of a manufacturing machine 130 for the covering material.
The postcard stuff 10 held by the hold roller 132, is loosen at one end and led to a resin coater 134. The resin coater 134 is designed to print or coat the resin 27a such as the aforesaid vinyl chloride-vinyl acetate copolymer on the suppression layer 20 of the base material 18.
The base material 18 onto which the resin 22a is printed or coated is then guided to a dryer 136, whereby the resin 22a is dried and the primer layer 27 is formed.
Next, the postcard stuff 10 formed with the primer layer 27 is directed to a heat adherent resin coater 140 for printing or coating the heat adherent resin 28a with a weak adhesion containing, for example, the aforesaid ethylene-vinyl acetate copolymerized resin as a main component. The heat adherent resin coater, 140 is a printing or coating machine utilizing known printing and coating methods such as a typographic printing, gravure printing, silk screen printing, offset printing or the like.
By the heat adherent resin coater 140, the heat adherent resin 28a having a weak adhesive power is printing or coating on the surface of the primer layer 27.
The postcard stuff 10 onto which the heat adherent resin 28a is printed or coated is led to a dryer 142, whereby the heat adherent resin 28a is dried and the first heat adherent resin layer 28 is formed.
Then, the postcard stuff 10 formed with the first heat adherent resin layer 28 or the like led to a heat adherent resin coater 144 for printing or coating the heat adherent resin 29a having the strong adhesion. The heat adherent resin coater 144 is a printing or coating machine utilizing known printing and coating methods such as a typographic printing, gravure printing, silk screen printing, offset printing or the like. By the heat adherent resin coater 144, the heat adherent resin 29a having the strong adhesion is printed or coated partially on the surface of the first heat adherent resin layer 28.
The postcard stuff 10 onto which the heat adherent resin 29a is printed or coated is led to a dryer 146, whereby the adherent resin 29a is dried and the second heat adherent resin layer 29 is formed.
Thus, as shown in Fig. 10, the postcard stuff 10 is formed with the base material 18 on which the suppression layer 20, the primer layer 27, the first heat adherent resin layer 28 and the second heat adherent resin layer 29 is formed in order.
The postcard stuff 10 is wound round the take-up roller 148 again.
In this embodiment, as shown in Fig. 10, the suppression layer 20 is formed on one main surface of the base material 18, the primer layer 27 is formed on the surface of the suppression layer 20, and the first heat adherent resin layer 28 is formed on the surface of the primer layer 27. The adhesion of the first heat adherent resin layer 28 is increased by the primer layer 27. Therefore, the first heat adherent resin layer 28 is adhered strongly to the base material 18.
In this embodiment, the second heat adherent resin layer 29 is formed on a surface of the first heat adherent resin layer 28 in the fixed width at the upside and downside of the covering material 14. Moreover, the second heat adherent resin layer 29 is formed on a surface of the first heat adherent resin layer 28 at right and left ends of the covering material 14 in spots.
Therefore, at a portion which the second heat adherent resin layer 29 is formed, the covering material 14 is adhered to a postcard material 12 strongly, and at a portion which the second heat adherent resin layer 29 is not formed, the covering material 14 is adhered to it weakly.
Thus, as shown in Fig. 11, at the portion where the second heat adherent resin layer 29 is not formed, the base material 18, the suppression layer 20, the primer layer 27 and the first heat adherent resin layer 28 can be relatively easily cut and peeled off from the postcard material 12. In this case, at a portion which the second heat adherent resin layer 29 is formed in spots the base material 18, the suppression layer 20, the primer layer 27 and the first heat adherent resin layer 28 can be relatively easily peeled off. Then, the lottery part 16a and the confidential matter 16b on the surface of the postcard material 12 can be seeing.
Fig. 13 is a sectional view showing a separate embodiment of the instant invention. In this embodiment, cuts 26a and 26b forming with parforations are formed specifically along the surrounding of the second heat adherent resin layer 28 in the upside and the downside of the base material 18, the suppression layer 20, the primer layer 22 and the first heat adherent resin layer 28.
In this embodiment, as shown in Fig. 14, the base material 18, the suppression layer 20, the primer layer 27 and the first heat adherent resin layer 28 can be peeled off relatively easily from the postcard material 12 by cutting at the cuts 26a and 26b, in a portion where the second heat adherent resin layer 28 is not formed. Then, the lottery part 16a and the confidential matter 16b on the surface of the postcard material 12 can be seeing.
In the aforementioned embodiment, the cut is formed along the surrounding of the covering material, a center portion of the covering material can be cut by the cut.
In this case, as shown in Fig. 15, when each cuts are constituted with a linear cut portion 224a and a curvilinear cut portion 224b respectively so as to overlap a part of one cut 224 and a part of the next cut 224 in a direction for peelingoff the covering mateial 212, the center portion of the covering material 212 can be peeled off easily. In addition, for peeling off the center portion of the covering material 312 easily, as shown in Fig. 16, for example, each linear cuts 324 may be formed along edges of the base material 314 on a slant so as to overlap a part of one cut 324 and a part of the next cut 324 in a direction for peeling off the covering material 312.
In the postcard shown in Fig. 15 and Fig. 16, by pulling the covering material between the adjacent perforations is broken as the direction thereof is shown by an arrow of dash-dot line, and the covering material of the portion encompassed by the perforation is peeled off.
However, as shown in Figs. 15 and 16, the same covering material as the postcard material may be formed and the covering material may be formed so as to be stuck to cover the whole surface of said postcard material.
While the present invention has been particularly described and shown, it is to be understood that it is for the purpose of illustration and example and not for limitation. The spirit snd scope of the invention is therefore to be determined solely by the accompanying claims.

Industrial Applicability

The adhesion of the heat adherent resin layer is increased by the primer layer. Therefore, the heat adherent resin layer is adhered strongly to the base material or the suppression layer, and is adhered weakly to the postcard material. Then, the surface of the postcard is covered with the base material of the postcard including the base material having the suppressiveness or with the suppression layer of the postcard including the suppression layer having the suppressiveness.
When peeled off the base material, the base material, the primer layer and the heat adherent resin layer are peeled off from the postcard material in the postcard including the base material having the suppressiveness, while, the base material, the suppression layer, the primer layer and the heat adherent resin layer are peeled off from the postcard material in the postcard including the suppression layer having the supprssiveness. Therefore, the surface of the postcard material can be seeing.
The first heat adherent resin layer is adhered weakly to a postcard material and the second heat adherent resin layer is adhered strongly to the postcard material.
Also, the adhesion of the first heat adherent resin layer is increased by the primer layer. Therefore, the first heat adherent resin layer is adhered strongly to the base material or the suppression layer. Therefore, the base material is not accidentally peeled off from the material to be sticked with a force applied to the second heat adherent resin layer. Then, the surface of the postcard material is covered with the base material of the postcard material including the base material having the suppressiveness or with the suppression layer of the postcard material including the suppression layer having the suppressiveness.
When peeled off the base material, the base material, the primer layer and the first heat adherent resin layer are peeled off from the postcard material in the postcard material including the base material having the suppressiveness, while, the base mateial, the suppression layer, the primer layer and the first heat adherent resin layer are peeled off the postcard material in the postcard material including the suppression layer having the suppressiveness. Therefore, the surface of the postcard material can be seeing.
According to the present invention, a postcard which is able to cover preferably and temporarily an information matter of the surface of the postcard material without any process on the surface of the postcard material, and a manufacturing method thereof are obtained.

Claims

A postcard comprising;
a postcard material and a covering material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof;
said covering material comprising:
a base material having a suppresiveness;
a primer layer formed at a pincipal surface of the base material; and
a heat adherent resin layer formed on a principal surface of the primer layer;
said covering material is adhered to a surface of the postcard material by the heat adherent resin layer.
A method for manufacturing a postcard of claim 1 comprising:
a step for preparing a postcard stuff including a postcard material, and a base material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof;
a step for manufacturing a covering material by the following step (A) and (B):
(A) forming a primer layer on one principal surface of the base material;
(B) forming a heat adherent resin layer on a surface of the primer layer; and
a step for adhering the covering material to a part of surface of the postcard material with the heat adherent resin layer in a folded-back fashion.
A postcard comprising:
a postcard material, and a covering material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof;
said covering material comprising:
a base material;
a suppression layer formed on one principal surface and having a suppresiveness;
a primer layer formed at a pincipal surface of the suppression layer; and
a heat adherent resin layer formed on a principal surface of the primer layer; and
said covering material is adhered to a surface of the postcard material with the heat adherent resin layer.
A method for manufacturing a postcard of claim 3 comprising:
a step for preparing a postcard stuff including a postcard material, and a base material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof;
a step for manufacturing a covering material by the following step (A), (B) and (C):
(A) forming a suppression layer having a suppressiveness on one principal suface of the base material;
(B) forming a primer layer on one principal surface of the suppression layer;
(C) forming a heat adherent resin layer on a surface of the primer layer; and
a step for adhering the covering material to a part of surface of the postcard material with the heat adherent resin layer in a folded-back fashion.
A postcard comprising:
a postcard material; and a covering material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof;
said covering material comprising:
a base material having a suppresiveness;
a primer layer formed at a pincipal surface of the base material;
a first heat adherent resin layer with a weak adhesion formed on a principal surface of the primer layer;
a second heat adherent resin layer with a strong adhesion formed on a principal surface of the first heat adherent resin layer; and
said covering material is adhered to a surface of the postcard material with the heat adherent resin layer.
A method for manufacturing a postcard of claim 5 comprising:
a step for preparing a postcard stuff including a postcard material, and a base material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof;
a step for manufacturing a covering material by the following step (A), (B) and (C):
(A) forming a primer layer on one principal surface of the base material;
(B) forming a first heat adherent resin layer with a weak adhesion on a surface of the primer layer; and
(C) forming a second heat adherent resin layer with a strong adhesion or a surface of the first heat adherenst resin layer; and
a step for adhering the covering material to a part of surface of the postcard material with the heat adherent resin layer in a folded-back fashion.
A postcard comprising:
a postcard material; and a covering material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof;
said covering material comprising:
a base material;
a suppression layer formed on one principal surface and having a suppresiveness;
a primer layer formed at a pincipal surface of the suppression layer; and
a first heat adherent resin layer with a weak adhesion formed on a principal surface of the primer layer;
a second heat adherent resin layer with a strong adhesion formed on a principal surface of the first heat adherent resin layer; and
said covering material is adhered to a surface of the postcard material with the heat adherent resin layer.
A method for manufacturing a postcard of claim 7 comprising:
a step for preparing a postcard stuff including a postcard material, and a base material formed integral with the postcard material and adhered to a part of surface of the postcard material in a folded-back fashion and covering a part of surface thereof;
a step for manufacturing a covering material by the following step (A), (B), (C) and (D):
(A) forming a suppression layer having a suppressiveness on one principal suface of the base material.
(B) forming a primer layer on one principal surface of the suppression layer;
(C) forming a first heat adherent resin layer with a weak adhesion on a surface of the primer layer;
(D) forming a second heat adherent resin layer with a strong adhesion on a surface of the first heat adherent resin layer; and
a step for adhering the covering material to a part of surface of the postcard material with the heat adherent resin layer in a folded-back fashion.