JPH06127175A - Mail form - Google Patents

Abstract

PURPOSE:To provide a mail form which becomes a reply-paid postcard having a low postage, a low form cost, and confidentiality by adhering a mail sheet to become a reply-paid postcard to a main sheet to become a reply postcard to be integrated. CONSTITUTION:The mail form comprises a mail sheet to become a postcard sent to get a reply, a weak adhesive layer 12 to be adhered under pressure and a layer to be printed with secret information X provided substantially on an entire surface to be brought into close contact with a mail sheet base material to become a reply-paid postcard, a layer for printing reply address information Y, and a corner cut 14 provided at a peeling starting position of the layer 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mail form for use as a secret post having a weak adhesive layer formed on the entire surface of a base material, and in particular, a public postcard and a reply postcard are integrated with a weak adhesive layer. At the same time, it is a mail form that can conceal confidential information at the time of outgoing communication to give confidentiality.

[0002]

2. Description of the Related Art In the past, a round-trip postcard was generally used for notification of attendance at meetings, reply to questionnaires, etc. In addition, a letter was used for a confidential notice from a financial institution such as a securities company or a bank, or a government agency, and a reply postcard was enclosed for those requiring a reply. Recently, the secret information surface is bent with a three-fold mail form, etc. and adhered with an adhesive to send it as a two-way postcard, and the recipient can read the secret information by peeling and opening the mail form. For replying to the reply, a secret round-trip postcard that cuts off one leaf of the reply form and mails it is approved and partially implemented.

FIG. 5 is a view showing a conventional example of the secret reciprocating postcard. The secret reciprocating postcard 2 has mail sheets 31, 32, 33 arranged in a row and folded in three. The address information W is printed on the front side of the mail sheet 31, and the back side of the mail sheet 31 and the mail sheet facing it. Confidential information X is printed on the back side of 32 and reply address information Y is printed on the front side of the mail sheet 33. Mail paper 31, 3
The back side between the two is adhered to the entire surface with a weak adhesive layer 12 so as to be removable again.

[0004]

However, in the above-mentioned round-trip postcard, there is no concealment of the described notification data,
It couldn't be used for anything related to privacy. Also, in the case of confidential two-way mail, the method of mailing the message and reply postcard in an envelope will keep the concealment of the notification content, but it will take time and effort to put the message and reply postcard in the envelope. However, there are drawbacks such as high postage cost and high cost due to the large amount of printed matter. The tri-fold mail form has the drawback that the notification data can be concealed and the mailing cost is lower than that of the sealed letter, but the form cost is high.
It is an object of the present invention to provide a mail form that can keep the concealment of notification data and at the same time low shipping cost and low form cost.

[0005]

In order to solve the above-mentioned problems, the mail form according to the present invention is configured such that a base material consisting of a postcard part for outgoing credit and a postcard part for replying is adhered by pressure to almost the entire surface to be adhered. Forming a pressure-sensitive adhesive layer composed of a weak pressure-sensitive adhesive, printing confidential information and reply address information on the surface of the pressure-sensitive adhesive layer, folding or stacking the base material, and the pressure-sensitive adhesive layer on the opposite surface. After hiding the printed surface by closely contacting each other, it can be peeled from the pressure-sensitive adhesive layer,
A mail form characterized by integrating an outgoing credit postcard and a reply postcard. In addition, a corner cut is provided at the peeling start position of the mail sheet in order to facilitate peeling between the weak adhesive layers when reading the confidential information and separating the reply postcard.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The mail form of the present invention will be described in detail below with reference to the drawings and the like. FIG. 1 shows an embodiment of a mail form according to the present invention.
Is a plan view of the front surface of the mail form 1, (a ') is a plan view of the back surface of the mail form 1, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIGS. 3 (b) and 3 (b') show the same embodiment form. FIG. 4 is a perspective view in which the foam is to be brought into close contact with each other, FIG. 4C is a view in which the foam is brought into close contact with and integrated with each other, and FIG. 4 is a cross-sectional view taken along the line BB of FIG. The mail form 1 is, as shown in FIG.
Usually, the paper is twice the size of a postcard (standard size postcard), and is folded in two from the planned folding line p indicated by the one-dot chain line. FIG. 1 (a) is a diagram showing the surface of the mail form 1, in which the outgoing address information W is printed on the right lobe 21 of the planned folding line p, and the left lobe 22 of the planned folding line p is a reply postcard. On the back side, the reply information Z from the sender to the sender, such as a reply to confidential information from the sender or a reply to a questionnaire, can be entered. FIG. 1 (a ') is a view showing the back surface of the mail form 1, which is the right lobe 2 of the planned folding line p.
Reply address information Y, which is a private postcard for reply, is printed on 2 ', and confidential information X from the sender is printed on its left leaf 21'. FIG. 2 shows the mail form 1 cut along the line AA of FIG.
A weak pressure-sensitive adhesive layer 12 that adheres by pressure is formed on almost the entire surface of 1'and 22 ', and the secret information X is formed on the surface of the pressure-sensitive adhesive layer 12.
And a print layer of reply address information Y are formed. 3 (b) and 3 (b ') are perspective views of the front and back of the mail form 1 where the planned contact surfaces 21' and 22 'are bent at the planned bending line p. FIG. 3C shows a surface 21 ′ having a print layer of the confidential information X and a print layer of the reply address Y.
, 22 'are brought into close contact with each other, secret information is concealed, and a postcard for reply and a postcard for reply are integrated.

Next, the layer structure will be specifically described. The base material 11 is usually white fine paper,
If the surface is roughened by corona treatment or matte treatment, synthetic resin films such as PET, PE, PP and vinyl chloride can be used. Weak adhesive layer 12
The pressure-sensitive adhesive used for is adjusted so as to facilitate the adhesion and re-peeling of the adhered surface, and the adhesive main agent, the adhesion modifier, the additives, etc. described below are mixed in the following proportions. ing. Adhesive main agent 100 parts by weight Adhesion control agent In the case of needle-shaped substances 10-100 (preferably 10-50) parts by weight In the case of fine-grained substances 0-50 (preferably 5)
30) parts by weight When the above two substances are mixed 10 to 100 parts by weight Additive wax 0.01 to 20 parts by weight UV absorbers trace amount defoaming agent trace amount defoaming aid trace amount emulsifying component water 100 to 500 (preferably 200)
To 300) parts by weight emulsifier 0.5 to 2 parts by weight resin 1 to 50 parts by weight

[Adhesive Main Agent] The adhesive main agent is a natural rubber (N
R), esterified natural rubber, styrene butadiene rubber (SBR), chloroprene rubber, polyvinyl acetate, polymethylmethacrylate (PMMA) and the like, or a mixture thereof. In mixing these adhesive main agents, by appropriately adjusting the mixing ratio, the adhesiveness to the base material can be made higher than the adhesiveness while maintaining the self-adhesiveness between the pressure-sensitive adhesives. Preferably, a natural rubber having a high property of exhibiting self-adhesiveness between pressure-sensitive adhesives under pressure is added with polymethylmethacrylate or styrene-butadiene rubber for the purpose of enhancing the adhesiveness with a base material, that is, the anchor effect. Is mentioned. Polymethylmethacrylate is preferably used as a mixture with another adhesive main agent rather than used alone. As such an adhesive main agent, fine particles having a particle size of about 0.1 μm to 3 μm are usually used.

[Adhesive Strength Adjusting Agent] The adhesive strength adjusting agent is mixed to adjust the adhesive strength of the adhesive main agent, and a needle-like substance or a fine particulate substance or a mixture thereof is used. Needle-like substance As the needle-like substance, any of an inorganic substance and an organic substance may be used, as long as the shape thereof is substantially needle-like, flat, spiral,
Although it is arbitrarily selected from those having various forms such as scales, a needle-shaped substance is particularly preferable. The needle-shaped substance has an average length of 10 μm to 20 μm and an average diameter of 0.2.
It is preferably about μm to 0.5 μm. Needle-like substances
It is preferable that the pressure-sensitive adhesive be an emulsion and have an apparent specific gravity of 0.05 to 0.6 in order to reduce the sedimentation property when it is used as a coating agent. Further, in consideration of printing processing and NIP suitability, a needle-shaped substance Has an elastic modulus of 10000 kg / mm ²
It is preferably about 40,000 kg / mm ² . Examples of such needle-like substances include glass fiber, carbon fiber, P
AN-based fibers, metal crystals, metal compound crystals, and the like,
The adhesive main agent may be one that has no affinity (compatibility). A preferable acicular substance is a crystal of potassium 6-titanate (K ₂ O.6TiO ₂ ), which has no compatibility with water but an affinity and an apparent specific gravity of 0.2.
(True specific gravity = 3.3), elastic modulus 28,000 kg / mm ²
And is suitable as a pressure-sensitive adhesive component.

Fine particulate matter The fine particulate matter includes micro silica, synthetic zeolite, activated alumina gel, calcium carbonate, zinc oxide, titanium oxide, talc, clay, kaolin, activated clay, acrylic beads, starch, cellulose, silas balloon and the like. The particles having a particle size of 10 mμm to 30 μm, preferably 0.5 μm to 10 μm are suitable.
Further, by adding together with the needle-shaped substance, it is possible to reduce the addition amount of the fine-grained substance and prevent the fine-grained substance from falling off.

[Additives] As additives, waxes such as polyethylene wax and carnauba wax are added to improve handling properties, slipperiness such as NIP transport performance or blocking resistance, and ammonia is added to prevent deterioration. UV absorbers such as ethanolamine may be added. Further, as an antifoaming agent, a nonionic surfactant,
An anionic surfactant (mineral oil type) may be added, or silica or the like may be added as a defoaming aid.

[Emulsifying Component] The above-mentioned tackifying main agent, tackiness adjusting agent, and additives are dispersed in a medium such as water and applied to a substrate in an emulsion state. When emulsifying, an emulsifier is added if necessary. As the emulsifier, oleic acid soap, potassium castor oil soap, casein, glue, gelatin and the like can be used. Further, in order to prevent secondary aggregation of the adhesive main agent when emulsified, a resin having no affinity with the adhesive main agent can be added. As this resin, a water-dispersible polymer polyester,
Thermoplastic elastomer, low molecular weight polyethylene such as low density polyethylene, ionomer, vinyl acetate-olefin copolymer and the like can be preferably used.

The coating amount of such pressure sensitive adhesives, after drying ^{0.1g / m 2 ~10g / m 2} , preferably 1.0g
/ M ^{2 to} 3.0 g / m ² is preferable. Within this range, when printing or printing from the pressure-sensitive adhesive, the ink can penetrate through the pressure-sensitive adhesive and reach the substrate, and transfer of the printing layer when peeled off can be prevented. . Furthermore, blocking, piling (powder drop), etc. can be prevented, and sufficient adhesion and printability can be obtained.

Next, a method of using the mail form 1 will be described. In the mail form 1, the outgoing address information W is printed on the right side of the front surface 21, and the left side 22 of the planned folding line p can be filled with the reply information such as the reply from the replyer or the reply to the questionnaire. Reply address information Y is printed on the right side leaf 22 'of the back side of the mail form 1, and confidential information X from the sender is printed on the left side leaf 21' of the mail form 1, for example, a data such as a balance inquiry of a financial product, a printer such as NIP. To print. After this, the mail form 1 is bent from the planned bending line p, folded in half and pressed, and the weak adhesive layer 12
Put the postcards in close contact with each other and make the postcard and reply postcard integrated.

If the mail form 1 is mailed in this state, the postage will be treated as a postcard. When the recipient tries to open it, the corner cut portion 14 of the weak adhesive layer 12
By further separating the layers, it is possible to open the confidential information without damaging it. When making a reply such as an answer to the confidential information, one leaf of the reply form can be cut off and mailed. The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the present invention. The print area and print information are not particularly limited. It is desirable that the size and weight when folded are ordinary postcards defined by the Postal Law, but are not particularly limited in consideration of the usage form. The mail form may be continuous paper or single-cut paper when printing information, and the printer is not limited to NIP, and a dot impact printer or the like may be used. Information or the like that does not require confidentiality can be appropriately printed on this mail form.

[0016]

As described above in detail, according to the present invention, since the items to be written at the time of outgoing communication are concealed, there is no fear that the written information will be leaked to a third party, and the mailing cost and the form cost will be reduced. It is cheap. Also, to create this mail form,
There is a merit that you can use the processing machine and processing process of the two-fold and three-fold mail forms that are widely used now.

[0017]

[Brief description of drawings]

FIG. 1 is a plan view of a mail form according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view of the foam of FIG. 1 when folded.

FIG. 4 is a sectional view taken along line BB of FIG.

FIG. 5 is a view showing a conventional example of a tri-fold secret postcard.

[Explanation of symbols]

 1 Mail form 2 Tri-fold secret postcard 11 Base material 12 Weak adhesive layer 13 Printing layer 14 Corner cut 21, 22 Mailform surface 21 ', 22' Backside of mailform W Forwarding address information X Confidential information Y Replying address information Z Reply information p Bending line

Claims (2)

[Claims] 1. A pressure-sensitive adhesive layer made of a weak pressure-sensitive adhesive which is adhered by pressure is formed on substantially the entire planned adhesion surface of a base material comprising a postcard part for outgoing credit and a postcard part for reply, and the surface of the pressure-sensitive adhesive layer. After printing secret information and address information for reply, folding or stacking the base material, the pressure-sensitive adhesive layers on the opposite surfaces are adhered to each other to conceal the printed surface, and then from the pressure-sensitive adhesive layer. A mail form characterized by integrating a postcard and a reply postcard that can be peeled off. 2. The mail form according to claim 1, wherein a corner cut is provided at a peeling start position between the weak adhesive layers.