JPH08175055A - Concealable mail form - Google Patents

Abstract

PURPOSE: To provide a mail form for a postcard large in data quantity, high in the degree of freedom of a design and capable of being mailed in such a state that confidential data is concealed. CONSTITUTION: In a mail form obtained by folding back a plurality of slip pieces connected through a folding perforation along the filding perforation to seal them under pressure, a light shielding ink layer 3, a re-releasable pressure-sensitive self-adhesive layer 2 and a printing layer are successively formed on the surface of the base material of the slips closely bonded in a re-releasable manner. The light shielding ink layer 3 is formed by solid printing or pattern printing using ink of high conc. and the pressure-sensitive self-adhesive layer 2 contains a white fine granular substance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mail form in which a confidential information is concealed and sent in a postcard.

[0002]

2. Description of the Related Art Conventionally, information typified by a tri-fold mail form is used to conceal and notify confidential information such as pension payments, deposit balances, unpaid tax invoices, etc. from financial institutions and government agencies. The medium is becoming mainstream. The address information and confidential information can be printed on the same side of the mail form at the same time with a non-impact printer, so consistency can be achieved and the work of enclosing in the envelope is unnecessary.
Furthermore, it is because the postage can be reduced by processing the whole sheet into one sheet so that it can be processed within the requirements of postcards stipulated by the Postal Law.

As shown in FIG. 4 (a), a three-fold mail form 21 is provided with marginal punches 22 on both sides and two folding perforations 23 and 24 in the central part flow direction, and is fixed at right angles to the flow direction. 25 horizontal perforations for separation at intervals
The necessary format is printed so that the area sandwiched by the horizontal perforations 25 becomes a personal-addressed form 26 sent to the individual. The individual address form 26 is divided into an address information recording area X and confidential information recording areas Y and Z by folding perforations 23 and 24. This mail form 21 is printed along the folding perforations 23 and 24 after the address information is printed in the X area and the personal confidential information and the like in the Y and Z areas by the output device of the computer. (3) is folded in three in a Z shape to remove the marginal punches 22 at both ends, and then cut along the horizontal perforations 25 to be cut into individual personal address sheets 20 and finally When pressed by a press roller, it is pressed onto a single postcard-sized sheet. In this case, the confidential information recording areas Y and Z, which are indicated by thin halftone dots, are provided with a removable pressure-sensitive adhesive layer on the entire surface, and the address information recording area X indicated by the dark halftone dots and the confidential information recording area Y are indicated. The back surface of is provided with an adhesive layer that cannot be removed again. Further, on the back surface of the address information recording area X where dark dots and diagonal lines overlap, a light-shielding ink layer is provided on a non-peelable adhesive layer to form a light-shielding surface S.

The mail form 3 shown in FIG.
1 is the economy type of the tri-fold mail form shown in FIG. 4, and the total area of the form is 1/2 of the tri-fold mail form. This mail form 31 is provided with marginal punches 32 on the left and right and folding perforations 33 in the flow direction of the central portion, and is provided with lateral perforations 34 for separation at regular intervals in the flow direction, and the area sandwiched by the lateral perforations 34 is The necessary format is printed so that the form 35 is sent to an individual. The print area of each individual address form 35 is divided into an address information recording area X and confidential information recording areas Y and Z. In the mail form 35, the address information is printed in the X area and the personal confidential information is printed in the Y and Z areas by the output device of the computer. The confidential information of the area is hidden, and the mail form 30 addressed to an individual as shown in FIG. 4B is created. The confidential information recording areas Y and Z are provided beforehand with removable pressure-sensitive adhesive layers indicated by thin dots. Further, in the above mail form, the confidential information may be readable even when the confidential information recording areas Y and Z are seen through with the illumination light even after the pressure is applied in three-fold or two-fold state and the entire surface is sealed. On the opposite surface of the confidential information recording area Z, a light-shielding surface S indicated by diagonal lines with a light-shielding ink layer is provided by solid printing using high-density ink or by printing a color pattern or a continuous pattern in advance. . In addition, FIG. 3 shows Y, Z
The BB 'cross section of the outside form piece which conceals the confidential information of the area is shown. That is, in the conventional form, as shown in FIG. 3, a print layer 14 for recording confidential information is provided on the inner surface of the base paper 11 provided with the double-sided adhesive layer 12, and a light-shielding ink layer 13 is provided on the outer surface. Each is formed.

[0005]

The mail form that can be mailed as a postcard is extremely advantageous in cost as compared with the conventional mail form. However, since the non-removable surface and the light-shielding surface are required, the printing and the printing area are reduced, and the amount of information to be transmitted is limited. Also, the outer surface of the postcard is where I want to print eye catching public information or illustrations, but if the space is occupied by solid or pattern printing as a light shielding surface, the freedom of designing the mail form is lost. There is a problem that it ends up. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and by eliminating the light blocking layer from the outer surface of the postcard, the amount of information transmitted in the mail form is increased, and at the same time, the concealable mail form which expands the degree of freedom in designing the mail form. For the purpose of providing.

[0006]

The present invention made to solve the above problems has the following points. (1) In a mail form in which a plurality of form pieces connected through fold perforations are folded back at the fold perforations and sealed under pressure, the base is placed on the base material surface of the form that is removably adhered. A light-shielding ink layer, a removable pressure-sensitive adhesive layer, and a printing layer are formed in order from the material surface. (2) The light shielding ink layer is formed by solid printing or pattern printing using high-concentration ink. (3) The pressure-sensitive adhesive layer contains a white fine particulate material.

[0007]

According to the present invention, the light-shielding ink layer is provided on the printing side, and the white fine particles are mixed in the adhesive layer, so that the information can be easily read by printing, and restrictions on the design of the outer surface of the postcard can be prevented. Lost. Furthermore, since the adhesive coating is performed after the light shielding ink layer printing and the public information printing, the adhesive layer on the surface of the postcard can be omitted in the case of the tri-fold mail form, and the material cost can be reduced.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view of a personalized mail form 10 of a concealable mail form according to the present invention. For the surface of this mail form, please refer to the conventional personal mail form 2
Although the configuration is the same as 0, the address information recording area X
Has no releasable adhesive layer indicated by thin dots. On the back side, the light shielding surface S in the conventional outer form piece for concealing confidential information is eliminated, and a public information printing area W is newly added instead, which is a major change, which is the point of the present invention. Also, the public information print area W
In addition, the conventional non-removable adhesive layer shown by the dark halftone dot is also eliminated. FIG. 2 shows the concealing outer form piece A- of the present invention.
It is an A'sectional view. As shown in this cross-sectional view, a light-shielding ink layer 3 is provided on the paper base material 1 by printing in advance, and a re-peelable adhesive layer 2 in which a white fine particulate substance is mixed is provided on the light-shielding ink layer 3. A print layer 4 for confidential information is provided on the top. Further, the public information printing ink layer 5 is previously formed on the back surface. In the conventional case, a pressure-sensitive adhesive that adheres to both sides of the mail form paper by applying pressure to each other is applied, and printing or printing is performed thereon, but in the present invention, printing is the first. The pressure sensitive adhesive layer is provided on the printed layer. Printing is done by the printer as before.

The light-shielding ink layer 3 is a thick ink layer formed by solid printing or pattern printing, and shields the printing of confidential information when a pressure-sealed postcard is viewed through light. It is camouflaged and unreadable. The white fine particulate matter mixed in the removable adhesive layer 2 has the effect of covering the light-shielding ink layer 3 with fine particulate matter having a strong hiding power and whitening it, and making the print thereon easier to read. There is. The white fine particles are silica,
Calcium carbonate, titanium oxide and the like are preferably used. These are originally used as an adhesive strength adjusting agent for pressure-sensitive adhesives, and in the present invention, the amount is increased within the range where the adhesive strength is allowed. In the conventional concealing outer form sheet made of high-quality paper, the dark color of the light-shielding ink layer 13 on the outermost surface easily penetrates the form sheet and appears on the print surface, so that the print density and the contrast of the paper surface are lowered, and it is difficult to read. There were cases. However, according to the present invention, the whiteness of the printing surface is increased and the printing with contrast is obtained, so that the confidential information is easy to read.

As shown in FIG. 2, in the present invention, since the light-shielding ink layer 3 is provided on the printing side, the surface of the base material 1 opposite to the confidential information writing area Z is the paper surface. However, public information, illustrations, etc. can be freely printed in advance, and the amount of information increases as compared with the conventional one.

Fine paper can be used as usual for the concealable mail form of the present invention. A flexographic printing method using a rubber relief plate can be suitably used to provide an adhesive layer on the whole surface or a part thereof. The pressure-sensitive adhesive used in the present invention will be described in detail below. The removable pressure-sensitive adhesive used in the mail form of the present invention does not adhere even when the adhesive layer comes into contact with the high-quality paper of the base material, and does not adhere until pressure contact between the adhesive layers occurs, and it is removable again. The adhesive main agent, the adhesive strength adjusting agent, the additives and the like are mixed in the following proportions. 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 0-100 (preferably 5-30) parts by weight When the above substances are mixed 10 to 100 parts by weight Additives Wax 0 to 20 parts by weight Ultraviolet absorber Small amount defoaming agent Small amount defoaming aid Small 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 in order to adjust the adhesive strength of the main adhesive 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 has an affinity and has 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.

Finely divided substances Finely divided substances include microsilica, synthetic zeolite, activated alumina gel, calcium carbonate, zinc oxide, titanium oxide, talc, clay, kaolin, activated clay, acrylic beads, starch, cellulose, shirasu 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 for improving handleability, slipping property such as NIP transport performance, or blocking resistance, and ammonia for preventing deterioration are added. 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 adhesive main agent, adhesive force 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 a pressure-sensitive adhesive is 0.1 g / m ^{2 to} 10 g / m ² , preferably 1.0 after drying.
g / m ² ~3.0g / m ² is preferred. Within this range, it is possible to print or print from the pressure sensitive adhesive in the information recording areas Y and Z. In this case, the ink can penetrate through the pressure-sensitive adhesive and reach the base material, and transfer of the printing layer when peeled off can be prevented. The strong adhesive layer 14 that cannot be peeled off can be obtained by controlling the above-mentioned adhesive force adjusting agent. In the present example, adhesive layers are provided on opposing form surfaces, and the adhesive layers adhere to each other to exhibit weak adhesiveness with removability or strong adhesiveness that cannot be peeled off. The same effect may be exhibited between the material and the adhesive layer, and the type of adhesive is not limited to the above.

The concealable mail form according to the present invention is not limited to the above-mentioned embodiment, and various modifications can be made without departing from the gist of the present invention. For example, the form pieces may be further increased within a range not exceeding the postcard regulations, and the form design is not limited to the layout shown in FIG. Further, it is not necessary to provide the light shielding ink layer on the entire surface of the form piece, and only the portion to be hidden may be partially printed.

[0019]

According to the concealable mail form of the present invention, the light-shielding ink layer is provided on the printing side, and the white fine particles are mixed in the adhesive layer to make it easier to read the information by printing, and to prevent the outside of the postcard. It is possible to increase the degree of freedom in design by eliminating the restriction on the design of the form, and as a result, it is possible to increase the total amount of information that can be transmitted. Further, by performing the printing of the light shielding surface and the printing of the public information and then the partial coating of the adhesive, the adhesive layer on the form surface appearing on the outer surface of the postcard can be omitted altogether, so that the cost can be reduced.

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along the line A-A ′ of the outer form piece for concealing confidential information.

FIG. 3 is a BB ′ cross-sectional view of a conventional outer form piece for hiding confidential information.

[Figure 4] Conventional tri-fold mail form explanatory diagram

[Figure 5] Conventional half-fold mail form explanatory diagram

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper base material 2 Removable adhesive layer containing a mixture of white fine particles 2'Removable adhesive surface 3 Light shielding ink layer 4 Printing layer 5 Printing ink layer 6 Non-removable adhesive surface 10 Mail form for individuals according to the present invention 11 Conventional Paper Substrate 12 Conventional Removable Adhesive Layer 13 Conventional Light-Shielding Ink Layer 14 Conventional Printing Layer 15 Conventional Non-Removable Adhesive Layer 20 Tri-Fold Mail Form for Individuals 21 Tri-Fold Mail Form 22 Marginal Punch 23 Fold perforation 24 Fold perforation 25 Fold perforation 30 Individual double fold mail form 31 Double fold mail form 32 Marginal punch 33 Fold perforation 34 Fold perforation S Light shielding surface W Public information recording area X Address information recording area Y Confidential information recording area Z Confidential information recording area

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical display area C09J 7/02 JJN JKF JKK JKL G09F 3/02 N 3/10 B

Claims (3)

[Claims] 1. In a mail form in which a plurality of form pieces connected through fold perforations are folded back at the fold perforations and pressure-sealed, on a base material surface of the form that is removably adhered. A concealable mail form, characterized in that a light-shielding ink layer, a removable pressure-sensitive adhesive layer, and a printing layer are formed in this order from the base material surface. 2. The concealable mail form according to claim 1, wherein the light-shielding ink layer is formed by solid printing or pattern printing using high-concentration ink. 3. The concealable mail form according to claim 1, wherein the pressure-sensitive adhesive layer contains a white fine particulate material.