Note: Descriptions are shown in the official language in which they were submitted.
2012438
SPECIFICATION
TITLE OF THE INVENTION
POSTCARD AND ITS MANUFACTURING METHOD
BACKGROUND OF THE INVENTION
FIELD OF THE INVENTION
The present invention relates to a special kind of post-
card with a part thereof covered to be invisible, more
particularly to a post-card with the part wherein secret
information is shown is kept covered during mailing and the
due recipient can see it on his own discretion, and a method
of manufacturing it.
DESCRIPTION OF THE PRIOR ART
Recently mails containing secret information such as
the balance of a person's bank deposit has been increasing.
It has, therefore, been desired to develop a kind of post~
card, a part of which containing secret information is kept
covered during mailing, and the due recipient can see it
without difficulty. And, as seen from the text of Japanese
Utility Model Publication NO.3789/'79, a kind of post card,
of which a part, for instance, a marked part is kept covered
until it is uncovered by the due recipient to see the secret
information hidden thereunder.
To make it partly uncoverable, however, as seen from
the text of the aforementioned Japanese Utility Model
2~)12438
Publication No. 3789/'79, the entire surface of a covering
paper has to be coated with a dryiny paste to form an
adhesive film and the postcard material is partly, for
instance, in the marked part has to be coated with a silicone
release agent or the like so that the covering paper can be
peeld off partly. Thus, since the covering paper has to be
coated with a drying paste and the postcard material
has to be partly treated with a release agent such as
one based on silicone, the construction of such post-card
becomes inevitably complicated and the increased number of
the manufacturing steps results in an increased manufacturing
cost. .
SUMMARY OF THE INVENTION
Therefore, it is a principal object of the present
invention to provide a postcard, in which surface treatment
of the postcard material is not required any only by post~
processing by pressing and so on of the sticking material for
covering a secret information, a part whi~h is possible to be
peeld off partly and a part which is adhered completely are
: : .
divided, in which the secret imformation is covered during
.:, ~,
mailing by post and the due recipient can see the secret
information easily, and a manufacturing method thereof. ~;
: ~: . .
A first invention involved relates to a kind of a ;~ -
postcard comprising: a postcard material; and a sticking ~ .
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material which is formed integral with said postcard material
and is stuck to at least a part of said postcard materi~l in
a folded-back fashion ; said sticking material comprising ~
a base material opaque at least partly; an inter-layer peel
ply formed on the principal surface of said base material; a
synthetic resin layer formed on the principal surface of
said inter-layer peel ply, being transparent at least
partly; and an adhesive layer formed on the principal
surface of said synthetic resin layer, being transparent in
the part corresponding to the transparent part of said
synthetic resin layer.
A second invention involved relates to a method of
manufacturing a postcard comprising : a process of
preparing a postcard stuff comprising a postcard material and
a base material which is formed integral with said postcard
material, and stuck to at least part of said postcard
material in a folded-back fashion ; a process of
manufacturing a sticking material comprising the
. ,
following steps (A) to (D), namely (A) a step of preparing
a synthetic resin film or sheet for forming a synthetic -; ~ :
resin layer transparent at least partly on one principal . :~
surface of the base material ; (B) a step of forming on one
principal surface of said synthetic resin film or sheet
an adhesive layer transparent in the part corresponding to
the transparent part of said synthetic resin film or sheet; ~.
Z01243~3
(C) a step of printing or coating an inter-layer release
agent on one principal surface of said base material
or said synthetic resin film or sheet; (D) a step of
forming an inter-layer peel ply between said base
material and said synthetic resin film or sheet by
laminating said synthetic resin film or sheet on said base
material using said inter-layer release agent; and a step
of sticking said sticking material with its adhesive
layer on the principal surface of said postcard material in
a folded-back fashion. ;
A third invention involved relates to another method
of manufacturing a postcard comprising: a process of
preparing a postcard stuff comprising a postcard material
and a base material which is formed integral with said
postcard material, and stuck to at least part of said
postcard material in a folded-back fashion ; a process of
manufacturing a sticking material comprising the
following steps ~A1 to (C), namely (A) a step of forming
an inter-layer peel ply by printing or coating a inter-layer
release agent on the princiapl surface of said base
material; (B) a step of forming a synthetic resin
layer transparent at least partly by printing or
coating a synthetic resin agent on the principal surface
of said inner-layer peel ply; ~C) a step of forming an
adhesive layer on the surface of said synthetic resin layer
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said adhesive layer being transparent in the part
corresponding to the transparent part of said synthetic
resin layer; and a step of sticking said sticking
material with said adhesive layer on the principal surface
of said postcard material in a folded~back fashion.
According to the present invention, the sticking
material has the inter-layer peel ply between the opaque base
material and the synthetic resin layer and the aforementioned
synthetic resin layer is stuck to the postcard material by
means of the adhesive layer, and the base material of the
sticking material can be peeled off with a relative ease as
it is stuck to the transparent synthetic resin layer
relatively weakly where the inter-layer peel ply is formed,
while the synthetic resin layer is kept stuck to the postcard
material relatively strongly by the adhesion of the adhesive
layer even after the base material of the sticking material
is peeled off.
According to the present invention, the synthetic resin
layer is stuck to the postcard material by means of the
adhesive layer relatively strcngly,- while the base material
of the sticking material is stuck to the synthetic resin
layer by means of the inter-layer peel ply relatively
weakly and is stuck to the postcard material still weaker,
hence the base material of the sticking material can be
peeled off the postcard material, that is, the synthetic
20~243~3
resin layer formed thereon. After the base material of the
sticking material has been peeled off the postcard material,
the secret information on the principal surface of the
postcard ~laterial can be seen through the transparent part of
the synthetic resin layer.
Moreover, by sticking the sticking material without
processing the postcard material, a postcard, which can be
divided into the base material stuck weakly on the postcard
material and the synthetic resin layer stuck completely,
can be obtained, and the user is required only to do a simple
pasting work, this making this type of postcard widely
applicable.
Furthermore,the postcard is just needed to be processed
to the sticking material in manufacturing and the postcard
material is not necessary to be processed, so that its
manufacturing process as well as an adhesion machine of a
sticking material can be simplified with ease for the user.
The aforementioned objects and other objects, features
and advantages of the present invention will become more
apparent from reading of the detailed description of the
embodiments given below under reference to the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. lA and FIG. lB are perspective views showing a
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postcard embodying of the present invention.
FIG. 2A and FIG. 2B are sectional views showing the
above embodiment.
FIG. 3 is an illustrative view showing an exa~ple of the
method of manufacturing the embodiment shown in FIG. 1.
FIG. 4 is an illustrative view of a manufacturing
apparatus showing an example of a method of manufacturing a
postcard material.
FIG. 5 and FIG. 6 are views showing a variation of the
aforementioned embodiment, of which FIG. 5 is a sectional
view and FIG. 6 is a partly broken-out perspective view.
FIG. 7 and FIG. 8 are illustrative views showing an
example of the manufacturing method for the embodiment shown
in FIG. 5.
FIG. 9A and FIG. 9B are perspective views showing
another embodiment, and FIG.lOA and FIG.lOB are sectional
views of the embodiment illustrated in fig. 9A.
FIG. 11 is a sectional view showing a variation of the
embodiment illustrated in FIG.lOA, and FIG. 12 is an
illustrative view showing the method of manufacturing it.
FIG. 13 is a view showing another variation thereof.
FIG. 14 is a plan view showing an another embodiment
:: . .::
of the invention.
FIG. 15 is a plan view showing a modification of the
embodiment of FIG. 14.
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DESCRIPTION OF THE PREFERRED EMBODIMENT . :
FIG. 1~ and FIG. lB are perspective views showing a ~ -
postcard embodying the present invention.
FIG. 2A and FIG. 2B are sectional views of the
aforementioned embodiment.
This postcard comprises a postcard stuff 10, and the
postcard stuff lO comprises a postcard material 11 formed in
the size of the government postcard and a sticking material,
that is to say, a covering material 12 stuck to part of this
postcard material 11. The covering material 12 is formed
integral with the postcard material 11 in a manner of
extending from one end thereof and is stuck to the postcard
material 11 in a folded-back fashion. - ~ `
This covering material 12 includes a transparent base -~
material 14 which is formed integral with the postcard ~ ~;
material 11 in a manner of extending from one end thereof.
This basematerial 14 is formedof a relatively soft ;~
material such as paper or a synthetic resin film.
This base material 14, which is required to be opaque
and have a suppressiveness, has to be made capable of
covering by maklng it opaque by, for instance, printing it
with a silver ink or the like to thereby form a suppression
layer or laminating it with a film or foil having
suppressiveness such as aluminum foil by the use of an
adhesive or the like.
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The surfaceof the suppression layer hasformed therein
a lottery part 16 wherein are shown letters such as "WINNING"
or "BLANK".
The principal surface of the lottery part 16 of the
aforementioned base material 14 is printed or coated with a
wax and there is formed an inter-layer peel ply 18, a part of
which is made transparent so that the lottery part 16 can be
seen through.
As the wax forming this inter-layer peel ply 18 may be
used any of the aminal, vegetable, mineral and petroleum-
derived waxes, for instance, natural waxes such as paraffin
wax, microcrystalline wax or petrolatum wax. Besides, also
usable are, among others, Fischer tropush wax and its
derivatives, synthetic hydrocarbons such as low-molecular
polyethylene and its derivatives, modified waxes such as
montan wax derivatives , paraffin wax derivatives and
microcrystalline wax derivatives, aliphatic alcohols and
acids such as cetyl alcohol and stearic acid, fatty acid
esters such us glyceryl stearate and polyethylene glycol ;
stearate, hydrogenated waxes such as glyceride, castor wax
and opal wax, synthetic ketone amine amides such as armor
wax and acra wax and, further, chlorinated bydrocarbons,
synthetic aminal waxes, synthetic waxes such as alpha-olefin
wax are as well usable. It is also possible to use mixed
waxes containing any of the aforementioned waxes. -
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Z0~2438
On one principal surface of the inter-layer peel plyl8,
there is formed a synthetic resin layer 20 transparent at
least partly.
This synthetic resin layer 20 is formed by laminating a
synthetic resin film or sheet on the base material 14 by the
use of the adhesion of the aforementioned inter-layer peel
ply 18 or by printing or coating a synthetic resin dissolved
in a solvent or dispersed in water.
On the principal surface of the aforementioned synthetic
resin layer 20, an adhesive layer 22 is formed by printing or
coating an adhesive of the pressure sensitive type.
As the synthetic resin used for forming the
aforementioned synthetic resin layer 20 may be used any
of polyethylene, ethylene-ethylacrylate copolymer
resin, ethylene-acrylic acid copolymer resin,
ethylene-methyl acrylate copolymer resin, ethylene-
methylmethacrylate copolymer resin, ethylene-methacrylic acid
copolymer resin, ionomer resin, polymethyl pentene 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,and polyurethane resin. For printing or
coating with any thereof, the selected synthetic resin may be
, ~ .
dissolved in a proper solvent or dispersed in water.
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Z0~2438
The lottery part 16 may be formed either on the surface
of the aforementioned synthetic resin layer 20 or on the
surface of the postcard material 10 to be vis-ble through the
synthetic resin layer 20. For that, however, the synthetic
resin layer 20 and the adhesive layer 22 have to be made
transparent or translucent. The lottery part 16 may as well
be formed on the surface of the inter-layer peel ply 18, and
in this case the inter-layer peel ply 18 need not be
transparent or translucent.
Now, the method of manufacturing a postcard of this
kind is described.
First, continuous paper for forming the postcard stuff
10 is prepared. The postcard material 11 portion and the
base material 14 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 11 and the
length of the base material 14.
If the base material 14 of this continuous paper is
insufficient, either principal surface thereof is solid-
printed with a silver ink by a known printing method such as
offset printing or by coatiny to thereby form a suppression
layer.
Meanwhile, an adhesive layer 22 is preformed thereon by
application of an adhesive of pressure sensitive type on the
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2~)1Z438
principal surface of a release sheet 24 coated with a release
agent. A laminate 26 is to be prepared by laminating the
synthetic resin film or sheet used for forming the synthetic
resin layer 20 on the surface of a laminate with.
This laminate 26 in a rolled form is mounted on the
holding roller 32 of a manufacturing equipment 30 for the
covering material. Meanwhile, the postcard stuff 10 also in
a rolled form, is mounted on the holding roller 34 of
the same equipment 30.
Then, one end of the rolled-up laminate 26 is pulled out
and led into the coating apparatus 36.
This coating apparatus 36 is for coating the surface of
the synthetic resin layer 20 with an inter-layer release
agent 18a for formation of the inter-layer peel ply thereon,
comprising two rollers 38a and 38b and also a storage vessel
40 and serves to apply by coating the heated and molten
inter-layer release agent 18a with the rollers 38a and 38b
being revolved.
...
As this coating apparatus 36, a coating machine such as
gravure roll coater or reverse roll coater may be used as
well as an well-known printing machine such as offset
printing machine or screen prlnting machine.
Thus, the laminate 26 coated with the inter-layer
release agent 18a is led into a laminating machine 42 for
...... ..
further lamination with the base material 14 of the ~`~
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12 ~`
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201.2438
postcard stuf f 10 as shown in FIG. 3.
The laminating machine 42 is for laminating a
base material portion 14a to serve as the base
material 14 on the surface of the inter-layer release agent
18a coated on the laminate 26, is arranged on the path
for the laminate 26, and includes a holding roller 34 ;
for holding the base material 14 in roll form.
This postcard stuff 10 has one end pulled out and this
is introduced between the roller 44a and the opposing
roller 44b. Then, the laminate 26 coated with the inter-
layer release agent 18a is being led between the rollers 44a
and 44b, hence between these rollers 44a and 44b the base
material portion 14a of the postcard stuff 10 is laid on the
laminate 26 with the inter-layer release agent 18a in
between. Thus, the laminate 26 with the base material
portion 14a to serve as the base material 14 laid thereon is ~-~
led through a cooler 46 or cooling roller ~not shown).
The cooler 46 is for cooling the inter-layer release
agent 18a applied between the laminate 26 and the base
material portion 14a. -~ ~~
In the cooler46, the inter-layer release agent 18a ;~
sandwiched between the laminate 26 and the base material
portion 14a is cooled and solidified to form the inter-layer
peel ply 18. !;~
The laminate 26 forms the inter-layer peel ply 18 is
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2012~8
around round a take-up roller 48.
Subse~uently, this postcard stuff 10 is led to a
covering material sticking apparatus 50 sticking this
covering material 12 to the postcard material 11. 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 12, it is
necessary to print proper characters in advance on a proper
place, for example, the lower column of the surface of the
postcard material 11.
In addition, in the case of making this covering
material 12 adhere, for example, to the lower column of the
postcard, as shown in Fig. 4, the release sheet 24 is
stripped and the postcard material 10 is fed sequentially,
and it is folded back at the boundary between the postcard
material 11 portion and the covering material 12 portion, and
the covering material 12 and the postcard material 11 are
bonded. Then, the surface of postcard material 10 is pressed
by a pressing roller, and the covering material 12 is stuck
to the surface of a postcard material 11. Then, the postcard
stuff 10 is cut in a proper size, and the postcard of the
present invention is formed.
Thus, by adhesion of the postcard material 11, the
covering material 12 adheres strongly to the postcard
material 11 by the adhesive power of the adhesive layer 22,
14
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2012438
and the base material 14 adheres weakly thereto by the inter-
layer peel ply 18. Accordingly, as shown in Fig. lA and Fig.
lB, the base material 14 of the covering material 12 can be
separated comparatively simply from the postcard material 11.
Although in the aforementioned embodiment continuous
paper in roll form was selected as the postcard stuff 10, it
may as well be separated in sheet form.
The surface of the base material 14 may be printed in
a mode suited for the postcard stuff 10, and when the base
material 14, inter-layer peel ply 18 and synthetic resin
layer 20 are formed to be continuous, marks for checking the
feeding pitch of the covering material 12 such as black
arrows may be printed as shown in FIG. lA.
FIG. 5 is a view showing a postcard as a variation of
the aforementioned embodiment.
As shown in FIG. 5, this postcard includes a postcard -~
material 61 and a covering material 62 which is formed
integral with the postcard material 61 in a manner of
extending from one end thereof and is stuck to the surface
of the postcard material 61, and the covering material 62
includes a base material 64, lottery part 66, inter-layer
peel ply 68, transparent synthetic resin layer 70 and
adhesive layer 72.
In this covering material 62, a part of the synthetic
resin layer 70 is spotly stuck directly to the base material
~; ''
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Z012A38
`
64, as shown in FIG. 6.
Hence, where the inter-layer peel ply 68 is not formed, -
,.. ~
the base material 64 is stuck to the synthetic resin layer 70
relatively strongly so that there is little risk of the base ~;
material 64 being accidentally peeled off the synthetic resin
layer 70 even where the inter-layer peel ply 68 is present.
Now, described below is the method of manufacturing the
covering material 62 illustrated in FIG. 5, referring mainly ~-
to FIG. 7 and FIG. 8. -
FIG. 7 is an illustrative view showing an example of -
manufacturing equipment for a laminate 76 formed by
laminating the base material 64, inter-layer peel ply 68 and
:. :;
synthetic resin layer 70. ; -
The illustrated manufacturing equipment 80 for this
laminate 76 includes a holding roller 82 for holding the ~ -
postcard material 60 which is formed integral with the base
material 64 in roll form. ~he postcard stuff 60 held by
the holding roller 82 has one end thereof pulled out and this
end is led into an inter-layer release agent coating unit 84.
This inter-layer release agent coating unit 84 is for
printing or coating the surface of the base material 64 of
the postcard stuff 60 with an inter-layer release agent 68a ; ~
such as wax, and includes two rollers 86a and 86b. ~-
The roller 86a has its lower part kept dipped in the ;
inter-layer release agent 68a in a pan. Hence, when
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201Z43~3
the rollers 86a and 86b are revolved, the surface of
the base material 64 being led therebetween is printe-d or
coated with the inter-layer release agent 68a except for
spots.
As the inter-layer release agent coating unit 84 may as
well be used a coating machine of some other type or a known
printing machine such as offset printing machine or screen
printing machine.
The postcard stuff 60 printed or coated with this
inter-layer release agent 68a is then led through a drying
unit 88 for solidification of the inter-layer release agent
68a.
The laminate with the inter-layer release agent 68a
solidified on its surface in the drying unit 88 is then led
through a synthetic resin coating unit 90 for formation of a
transparent synthetic resin layer 70 thereon.
In this synthetic resin coating unit 90, the surface of
the inter-layer peel ply 68 of a proper thickness formed by
solidification of the aforementioned inter-layer release
agent 68a is printed or coated with a synthetic resin
agent 70a for formation of a synthetic resin layer 70
thereon.
The laminate 76 coated with the synthetic resin
agent 70a in this synthetic resin coating unit is properly
wound up in roll form after solidification of the synthetic
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20~2438
:
resin agent 70a.
And the laminate 76 wound up in roll form as shown in
FIG. 8 is then loaded in a laminating unit 94 for formation
of an adhesive layer 72.
In this laminating unit 94 a release sheet 74 is loaded
, :
in roll form, one end thereof is pulled out and is led into ; -~
an adhesive coating unit 96 for having the surface of the
release sheet 74 printed or coated with an adhesive 72a such
as an adhesive of the pressure sensitive type.
. .
The adhesive coating unit 96 includes two rollers 98a ~ ~ ~
: ::. ~.,.: .
and 98b. ~ ;
The roller 98b has its lower part kept dipped in the
adhesive 72a in the bottom portion of a pan 98c. Hence when
the rollers 98a and 98b are revolved, the surface of the ;
release sheet 74 is printed or coated with the adhesive 72a.
As this adhesive coating unit 96 may as well be used a
coating machine of some other type or a printing machine of a
known type such as offset printing machine or screen printing
machine.
The release sheet 74 thus printed or coated with the
adhesive 72a lS then led through a drying unit lûO including, -
for example, a heater. In the drying unit lO0, the adhesive
72a applied to the surface of the release sheet 74 by
printing or coating is dried to form the adhesive layer 72. ;~
The release sheet 74 with the adhesive layer 72 formed
18 i ; ;
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20~Z438
thereon is led into a laminating unit 102.
Meanwhile, the aforementioned laminate 76 is held in
roll form on a separate holding roller 104, one end thereof
is pulled out and this end is led into the laminating unit
102. The laminating unit 102 includes two rollers 106a and
106b. Between these two rollers 106a and 106b, the laminate
of the release sheet 74 and the adhesive layer 72 is passed
through together with the laminate 76 so that the synthetic
resin layer 70 of the laminate 76 is stuck to and laminated
on the adhesive layer 72. When these rollers 106a~and 106b
are revolved, the laminate of the adhesive layer 72 et cetra
and the synthetic resin layer 70 of the laminate 76 passing
therethrough are stuck together and the covering material 62
is formed thereby.
The covering material 62 formed is wound round a take-
up roller 110 to be kept in roll form.
And it is folded back at the boundary between the
postcard material 61 portion and the covering material 62
portion, and the covering material 62 and the postcard
material 61 are bonded. In addition, by pressing the
surface of postcard stuff 10 by a pressing roller, the
covering material 62 is stuck to the surface of the postcard
material 61. Then, the postcard stuff 60 is cut in a proper
size, and the postcard of the present invention is formed.
FIG. 9A and FIG. 9B are perspective views showing
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another embodiment, and FIG.lOA and FIG.lOB are sectional
views of the embodiment shown in FIG. 9A.
FIG. 9A and FIG. lOA are views showing the original
state, and FIG. 9B and FIG. lOB are views showing the
released state.
In this embodiment, cuts 128a and 128b are made in a
covering material 122 stuck to the postcard material 121,
where the inter-layer peel ply 126 is formed, continuously
from one end to the other end in parallel and in relative
proximity in the vicinity of the left end of a base material
124 so as to allow parting of the base material 124.
. .
Moreover, the base material 124 between the cuts 128a and ;;
128b is formed sunken to be easily caught by a finger or -~
nail so that the base material 124 between the cuts 128a -
and 128b can be parted with ease. Alternatively, a -
projection may be provided at the fore end of the base
material 124 between the cuts 128a and 128b to facilitate
picking instead of the aforementioned sinking.
. , ,. ,::
Also, in the vicinity of right edge, a cut 132 for
parting is provided so that the covering material 122 peeled
off the postcard material 121 can be parted from the
plart securely stuck by means of the synthetic resin
layer 130. In this embodiment a lottery part 136 is
provided on the postcard material 121 side to be visible
through the synthetic resin layer 130.
.
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2~ 12438
These cuts 128a and 128b as well as the cut 132 for
parting are formed, when the base material 124 is made
of paper, along the fiber direction so that the base material
124 can be parted with a relative ease. By the way, in this
embodiment, the synthetic resin layer 130 is directly stuck
in theviciniti~s of both edges of the base material 124 lest ~ ~
it should be peeled off accidentally. ~ -
FIG. 11 is a sectional view showing another variation
of the embodiment shown in FIG. lOA, and FIG. 12 is an
illustrative view showing the method of manufacturing it. ~ ;
In this variation, a base material 141 and a synthetic
resin layer 142 are strongly stuck together with an adhesive
layer 144 in between.
As seen from FIG. 12, the method of manufacturing
the postcard of this variation consists of steps of first
forming an adhesive layer 144 on the surface of the
.:.:-: ~
base material 141 of the postcard stuff 140 by printing ;~
or coating with an adhesive of the pressure sensitive
type, then peeling off a release paper 146 and having ~-
it laminated on the surface of the synthetic resin layer
142.
Fig. 13 is a view showing still another variation, in
which a base material 151 and an adhesive layer 152 are ~` ;-
,.. ~
directly stuck together to preclude accidental peeling off of
the base material 151. ` ~;-
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.... .
In each embodiments, the cuts may be formed along all
edges of the base material of the covering material. When
the cuts are formed like that, the center portion of the
covering material is peeled off easily. In this case, as
shown in FIG. 14, when each cuts are constituted with a
linear cut portion and a curvilinear cut portion respectively
so as to overlap a part of one cut 224 and a part of the next
cut 224 in a direction for peeling the covering material
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 easily, as shown in FIG.
15, 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
these embodiments, the covering material is stuck to cover
the whole surface of the postcard material.
In the postcard as shown in FIG. 14 and FIG. 15, by
pulling the covering material in the direction as shown by an
arrow, 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.
The present invention, preferred embodiments thereof,
having thus been described and illustrated in detail, it is
22
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to be understood that such description and illustration made
above are solely for the purpose of explanation and are b-y no
means limitation, and the spirit and scope of the resent
invention is limited only by the appended claims.
23
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