WO2003086776A1

WO2003086776A1 - Seal type letter paper

Info

Publication number: WO2003086776A1
Application number: PCT/KR2003/000700
Authority: WO
Inventors: Hack-Churl You
Original assignee: Hack-Churl You
Priority date: 2002-04-12
Filing date: 2003-04-08
Publication date: 2003-10-23
Also published as: AU2003219588A1; KR200280858Y1

Abstract

The present invention provides seal type letter paper with one or more folding and/or cutting lines marked on it vertically as well as horizontally and its certain edges are treated with adhesive in a manner that it yields a sealed envelope form when it is completely folded and/or cut along the folding/cutting lines, the letter paper comprising one or more transparent windows to enable certain contents written thereon are exposed outwardly through the transparent windows when it is folded to an envelope form, each edges of the windows being treated with disposable adhesive that loses adhesive strength once the surfaces adhered with the adhesive are separated from each other, and thus, allowing the windows to be fixed to the letter paper without requiring an additional transparent film made of synthetic resin.

Description

SEAL TYPE LETTER PAPER

Technical Field of the Invention

The present invention relates to seal type letter paper, in particular, to letter paper which can be folded and sealed by an automatic mail sealing device without requiring an additional envelope and/or other sealing means.

Background Art

Generally, a mail is dispatched after letter paper has been put into an envelope carrying addresses of a sender as well as of a receiver, and then the envelope has been sealed. However, problems with such mailing with separate letter paper and envelope are that it takes costs and time, since envelopes shall be manufactured in addition to letter paper, addresses shall be indicated on the envelope, the letter paper shall be folded to fit in the envelope, and then, the envelope shall be sealed.

In order to solve these problems, conventional seal type letter paper has been introduced, wherein letter paper and envelope have been integrated into one element, comprising adhesive at certain edges thereof, to allow automatic sealing of the letter paper by an automatic sealing device to a sealed envelope.

In the following, constructions and effects of conventional seal type letter paper are described making reference to the attached drawings. As shown in Figs, la through lc, conventional seal type letter 1 is made of a customary letter paper comprising sections 2 divided by horizontal folding lines 3, vertical folding lines 4 as well as a plurality of holes 5 formed along the vertical folding lines, a transparent window 7 made of thin transparent synthetic resin film 7 at a predetermined place in each two or three sections, a horizontal adhesive part 8 formed along the horizontal folding line 3, vertical adhesive parts 10 formed along the vertical folding lines 4, and opening lines 9 formed at inside of the vertical adhesive parts 10 to enable easy opening of the sealed envelope.

Figs, la and lb show construction of a double fold seal type letter paper, wherein Fig. la shows the inside and Fig. lb shows the outside of a sealed envelope after a conventional seal type letter paper has been fully folded.

Fig. lc shows construction of another embodiment of the conventional seal type letter paper, wherein a triple fold method is used.

A conventional seal type letter paper 1 is first folded by the horizontal folding lines 3 formed parallel to the horizontal adhesive part 8 as illustrated in Fig. Id in case of a double fold type as illustrated in Fig. le in case of a triple fold type, then, folded by the vertical folding lines 4 formed along the holes 5 to further folded as illustrated in Fig. If, and finally, the horizontal as well as the vertical adhesive parts 8, 10 are applied with adhesive and then, sealed, to result in a sealed envelope k as illustrated in Fig. 1 g. Here, the horizontal and the vertical adhesive parts 8, 10 can also be prior treated with adhesives at the time of manufacturing the seal type letter paper.

The receiver who has received the above sealed envelope k could easily open the envelope by pulling the opening line 9.

Thus, a conventional seal type letter paper, by indicating the receiver information on the letter paper at locations facing the transparent windows 6, allows to identify the receiver information through the transparent window 6 from outside, and further allows various additional information material to be enclosed with it, the letter itself being carried on the letter paper which functions at the same time as an envelope.

However, problems with the conventional seal type letter paper are: It causes frequent malfunction of automatic mail sorting machine if the transparent synthetic resin film 7 is not properly fixed to the transparent window 6; it cannot be admitted as a mail envelope or a mail card if the transparent windows 6 are not properly sealed by transparent synthetic resin film 7, which leads to enhanced manufacturing costs and complicated manufacturing processes. Moreover, there arise also environmental concerns, because synthetic resin film waist as large as a soccer playground of about 900m is produced per year for production of 10000 sheets of the conventional seal type letter paper.

Disclosure of the Invention

The present invention, conceived to solve the above problems, aims to provide seal type letter paper capable of fixing transparent windows outwardly exposing the receiver as well as the sender information without using a transparent synthetic resin film.

In order to achieve the above objectives, the present invention provides seal type letter paper with one or more folding and/or cutting lines marked on it vertically as well as horizontally and its certain edges are treated with adhesive in a manner that it yields a sealed envelope form when it is completely folded and/or cut along the folding and/or cutting lines, the letter paper comprising one or more transparent windows to enable certain contents written thereon are exposed outwardly through the transparent windows when it is folded to an envelope form, each edge of the windows being treated with disposable adhesive that loses adhesive strength once the surfaces adhered with the adhesive are separated from each other and thus, allowing the windows to be fixed to the letter paper without requiring an additional transparent film made of synthetic resin.

The present invention further provides seal type letter paper with one or more folding and/or cutting lines marked on it vertically as well as horizontally and its certain edges are treated with adhesive in a manner that it yields a sealed envelope form when it is completely folded and/or cut along the folding/cutting lines, the letter paper comprising one or more transparent windows to enable certain contents written thereon are exposed outwardly through the transparent windows when it is folded to an envelope form, each edge of the windows being treated with disposable adhesive that loses adhesive strength once the surfaces adhered with the adhesive are separated from each other, and further comprising a free space at one end thereof capable of wrapping and sealing the letter paper when the letter paper is completely folded to an envelope.

Adhesives used in the present invention can be a pressure type adhesive and/or a heat type adhesive.

Brief Description of the Drawings

Figs, la and lb show construction of a conventional double fold seal type letter paper.

Fig. 1 c shows construction of another conventional seal type letter paper, wherein a triple fold method is used.

Fig. Id shows a conventional double fold seal type letter paper while it is folded vertically by the vertical folding lines. Fig. le shows a conventional triple fold seal type letter paper while it is folded vertically by the vertical folding lines.

Fig. If shows folding process of a conventional triple fold seal type letter paper to yield an envelope form.

Fig. lg shows a conventional seal type letter paper after completion of the folding and sealing processes.

Fig. 2 shows inside of a seal type letter paper in accordance with the present

I invention.

Fig. 3 a shows the seal type letter paper in Fig. 2 as it is folded to a half by the vertical folding line. Fig. 3b shows rear side of the seal type letter paper in Fig. 3a.

Fig. 4 shows the seal type letter paper in Fig. 3b after it has been further folded by the horizontal folding line to yield an envelope form.

Fig. 5 shows another embodiment example of seal type letter paper in accordance with the present invention. Fig. 6a shows the seal type letter paper in Fig. 5 as it is folded to a half by the vertical folding line.

Fig. 6b shows rear side of the seal type letter paper in Fig. 6a.

Fig. 6c shows the seal type letter paper in Fig. 6b after the invoice part has been up-folded by the horizontal folding line to yield an envelope form. Fig. 7a shows front side of a seal type letter paper in accordance with the present invention after it has been fully sealed.

Fig. 7b shows rear side of a seal type letter paper in accordance with the present invention after it has been fully sealed.

<Description of the main components in drawings> 100: seal type letter paper 200: paper part

210: first paper part 212: sender information

214: receiver information 216: space for advertisements

218: space for notices 220: second paper part

222: first transparent window 224: second transparent window

226: adhesive 300: remittance form

310: receipt 320: remittance request

330: invoice 400: folding line

500: free space

Best Mode for Carrying Out the Invention

A detailed description of the preferred embodiments of the present invention is given below making reference to the accompanying drawings. Fig. 2 shows inside of a seal type letter paper in accordance with the present invention.

As shown in Fig. 2, a seal type letter paper in accordance with the present invention 100 comprises a first paper part 210 which includes a sender information part 212 for carrying sender's name, address, etc., a receiver information part 214 for carrying receiver's name, address, etc., an advertisement part 216 for various advertisements, and a notice part 218 for notices to the receiver; a second paper part 220 which includes a first window 222 and a second window 224 at places corresponding to the sender information part 212 and the receiver information part 214, respectively, to enable the sender information and the receiver information to be exposed outwardly when the seal type letter paper 100 is fully folded to an envelope form, whereby edges of the first window 222 as well as of the second window 224 are treated with disposable adhesive 226 that loses adhesive strength once the surfaces adhered with the adhesive are separated from each other; a remittance form part 300 consisting of a receipt part 310 for the paying party, a remittance request part 320 for the receiving party, and an invoice part 300 for the financial institution effecting the remittance; and folding lines 400 which separate the above parts.

Locations at which additive 226 is applied are not limited to those illustrated in Fig. 2, but rather comprise other appropriate locations capable of producing an envelope form when the seal type letter paper 100 is folded to half by the vertical folding line. Thus, the adhesive 226 in Fig. 2 can additionally be applied to the outer edges of the first paper part 210 and of the invoice 330, or only to the outer edges of the first paper part 210 and of the invoice 330.

Furthermore, advertisements and notices can also be carried at inside of the second paper part 220 in addition to the surface where the first as well as the second windows 222, 224 are provided. Fig. 3 a shows the seal type letter paper in Fig. 2 as it is folded to a half by the vertical folding line.

If a seal type letter paper 100 as in Fig. 2 is folded in a manner that the second paper part 220, the receipt 310 and the remittance request 320 are laid on the first paper part 210 and the invoice 330, respectively, the letter paper 100 is folded by the vertical folding line and adhered by the adhesive 226 applied to outer edges of the second paper part 220 as well as of the receipt 310 and the remittance request 320, to produce a shape illustrated in Fig. 3a. When the seal type letter paper 100 is folded as in Fig. 3a, sender information 212 is exposed outwardly through the first window 222, and receiver information 214 is exposed outwardly through the second window 224, while contents indicated on the inside of the first and the second paper parts 210, 220 other than the sender information 212 and the receiver information 214 are not exposed.

Fig. 3b shows rear side of the seal type letter paper in Fig. 3 a.

Since outer edges of the rear side of the invoice 330 is applied with adhesive 226 as shown in Fig. 3b, if the seal type letter paper 100 as folded in Fig. 3a is further folded by folding line 400 formed horizontally, rear side of the invoice 330 is tightly sealed with rear side of the first paper part 210 by adhesive 226.

If the seal type letter paper 100 is folded and sealed as shown in Fig. 4, edges of the first window 222 and the second window 224 are tightly adhered to inside of the first paper part 210 so that the sealed envelope can be recognized as a mailing envelope or a letter card without requiring a transparent film to be attached to each of the first window 222 and the second window 224. Accordingly, a seal type letter paper folded and sealed as in Fig. 4 can be mailed without requiring an envelope. Fig. 5 shows another embodiment example of seal type letter paper in accordance with the present invention.

The seal type letter paper 100 shown in Fig. 5, being of 216mm x 356mm size and made of legal paper used mainly for office purposes, comprises a free space 500 in addition to a first paper part 210, a second paper part 220, and a remittance form 300. In the present embodiment example, the free space 500 is not cut off, because a new cut off process would be required for cutting off the free space 500 from the first and the second paper parts 210, 220.

In the seal type letter paper 100 of Fig. 5, the first paper part 210, the second paper part 220, and the remittance form 300 are placed at the far bottom part of a legal paper so that a free space 500 is created at the top part of the legal paper. Further, outer edges of the second paper part 220 and the receipt 310, as well as edges of one half of the free space 500 are treated with disposable adhesive 226 so that the letter paper 100 can be folded and sealed to half by a vertical folding line 400. Since the other constructions of the seal type letter paper as per this embodiment example are the same as those of the seal type letter paper in Fig. 2, an explanation thereof is omitted.

Fig. 6a shows the seal type letter paper in Fig. 5 as it is folded to a half by the vertical folding line.

If the seal type letter paper 100 as shown in Fig. 5 is folded to half by the vertical folding line 400, the second paper part 220, the receipt 310 and the remittance request 320 are laid on the first paper part 210 and the invoice 330, respectively, and the free space 500 is also folded to a half, and the letter paper 100 is sealed by adhesive 226 applied to outer edges of the second paper part 220 as well as of the receipt 310 and the free space 500, to produce a shape illustrated in Fig. 6a. If the seal type letter paper 100 is folded as in Fig. 6a, sender information 212 is exposed outwardly through the first window 222, and receiver information 214 is exposed outwardly through the second window 224, while contents indicated on the inside of the first and the second paper parts 210, 220 other than the sender information 212 and the receiver information 214 are not exposed.

Fig. 6b shows rear side of the seal type letter paper in Fig. 6a.

As shown in Fig. 6b, on the rear side of the seal type letter paper 100, outer edges of the first paper part 210, the invoice 330, and the free space 500 are treated with disposable adhesive 332.

Fig. 6c shows the seal type letter paper in Fig. 6b after the invoice part has been up-folded by the horizontal folding line to yield an envelope form.

If the seal type letter paper 100 as folded in Fig. 6b is up-folded by the folding line 400 formed between the first paper part 210 and the invoice 330, and adhered by adhesive 332 applied at rear side of the first paper part 210 and the invoice 330, a shape as in Fig. 6c is produced. After that, if the free space 500 is down-folded by the folding line 400 formed between the free space 500 and the first paper part 210, and adhered by adhesive 332 applied at rear side of the free space 500, the sealing procedure is completed and a shape as illustrated in Fig. 7b is produced.

In addition, since bottom parts of the receipt 310 as well as of the remittance request 320 of Fig. 5, and of the invoice 330 of Fig. 6b can be fixed by adhesion of the free space 500, treatment of these parts with adhesive can be saved in this embodiment example.

Fig. 7a shows front side of a seal type letter paper in accordance with the present invention after it has been fully sealed, while Fig. 7b shows rear side of a seal type letter paper in accordance with the present invention after it has been fully sealed.

If the seal type letter paper 100 is completely folded as in Figs. 7a and 7b, only sender information 212 and receiver information 214 are exposed outwardly through the first window 222 and the second window 224, respectively, and all other information is not exposed, whereby the first window 222, the second window 224, and the free space 500 are firmly fixed to the seal type letter paper 100, allowing the latter to be recognized as a mailing envelope or a letter card and to be mailed without requiring an envelope.

The above utilization of a free space enables not only to save an additional process of cutting off of such empty space, but also to enhance sealing power of the seal type letter paper 100.

Furthermore, the folding lines 400 used in this embodiment to simply mark places of the seal type letter paper 100 to be folded, can be replaced by cutting lines consisting of small holes or grooves with prescribed intervals where the seal type letter paper is desired to be cut off along the folding lines 400. Even where folding lines are replaced by cutting lines, the seal type letter paper has the same construction except for the difference that it is cut off by the cutting lines instead of being folded. Thus, a further explanation thereof is omitted.

Although the present invention has been described above with reference to the preferred embodiments and accompanying drawings, it should be noted that the scope of the rights of the present invention is not limited thereto, but rather shall be determined by the appended claims, allowing various alterations, modifications and adjustments as those skilled in the art will understand.

For example, although the seal type letter paper in accordance with the present invention has been described above comprising remittance forms, the present invention is not limited thereto, and applies to general mailing paper as well.

Industrial Applicability

As described above, seal type letter paper in accordance with the present invention can be mailed without requiring an (additional) envelope; can easily be manufactured; and allows transparent windows to be fixed without requiring any transparent film made of synthetic resin, thus, contributing to reduce problems relating to recycling of resources and to environment.

Claims

1. A seal type letter paper with one or more folding and/or cutting lines marked thereon vertically as well as horizontally and certain edges of said letter paper are treated with adhesive in a manner that said letter paper yields a sealed envelope form when said letter paper is completely folded and/or cut along the folding/cutting lines, to allow said letter paper to be mailed without requiring an envelope, wherein said letter paper comprises one or more transparent windows to enable certain contents written thereon be exposed outwardly through said transparent windows when said letter paper is folded to an envelope form, whereby each edge of said windows are treated with disposable adhesive that loses adhesive strength once surfaces adhered with said adhesive are separated from each other.

2. The seal type letter paper of Claim 1, wherein said adhesive is a pressure type adhesive.

3. The seal type letter paper of Claim 1, wherein said adhesive is a heat type adhesive.

4. The seal type letter paper as set forth in any one of Claims 1 through 3, wherein said letter paper comprises a remittance form.

5. A seal type letter paper with one or more folding and/or cutting lines marked thereon vertically as well as horizontally and certain edges of said letter paper are treated with adhesive in a manner that said letter paper yields a sealed envelope form when said letter paper is completely folded and/or cut along the folding/cutting lines, to allow said letter paper to be mailed without requiring an envelope, wherein said letter paper comprises one or more transparent windows to enable certain contents written thereon be exposed outwardly through said transparent windows when said letter paper is folded to an envelope form; and a free space at one end thereof for wrapping and sealing part or whole of said letter paper when said letter paper is completely folded, whereby each edge of said windows are treated with disposable adhesive that loses adhesive strength once surfaces adhered with said adhesive are separated from each other.

6. The seal type letter paper of Claim 5, wherein said adhesive is a pressure type adhesive.

7. The seal type letter paper of Claim 5, wherein said adhesive is a heat type adhesive.

8. The seal type letter paper as set forth in any one of Claims 5 through 7, wherein said letter paper comprises a remittance form.