JPH0354041Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an envelope that emits a fragrance when opened.

(Prior art) It has been conventional practice to print envelopes with ink containing a fragrance or to adhere the pasted part with glue containing a fragrance to make the user feel the fragrance. (Jikko No. 24-4974). However, in this envelope, the fragrance agent evaporates over time, so even if you do this in advance, you will not be able to feel the fragrance when you receive the sealed letter after a long period of time.

In addition, even if you simply add microcapsules containing perfume to the ink and print a pattern on the envelope to prevent the aroma from evaporating, it is necessary to destroy the microcapsules by rubbing them with your fingernails to generate the aroma. The fragrance will not emit unless the person receiving the envelope does so.

(Problems to be solved by the invention) The present invention solves the above-mentioned drawbacks of the conventional technology. It is an object of the present invention to provide an envelope that can reliably emit a fragrance when opened, without the need for special operations that destroy microcapsules.

(Means for solving the problem) In the present invention, by using a glue containing microcapsules containing fragrance,
The microcapsules are destroyed by the force of opening the envelope, making it possible to emit a fragrance. have,
It concerns an envelope that emits a fragrance when opened.

(Function) When opening the envelope of the present invention, force is applied to the glue part of the sealing flap part of the envelope, the microcapsules contained in the glue part are destroyed, and the fragrance contained in the microcapsules is vaporized.

(Example) Figures 1 and 2 show examples of the present invention. Figure 1 shows a horizontally long envelope, and Figure 2 shows a vertically long envelope. It has a glue part 3 in the part. Here, as the envelope 1 itself, a conventionally known one or one having a shape as shown in FIG. 3, which will be described later, can be used.

Various types of glue can be used to form the glue portion 3, including water-based emulsion adhesives and pressure-sensitive adhesives such as EVA emulsion and vinyl acetate emulsion. When using an adhesive, it is preferable to further laminate a releasable sheet on the adhesive part 3.

In addition, as the glue constituting the glue portion 3, rewetting glue using an aqueous dextrin solution, an aqueous gum arabic solution, etc. may be used, and its activity as an adhesive is restored by wetting it with water when desired.

The glue in the glue part 3 further contains microcapsules containing a fragrance.

Here, the fragrance may be one or a mixture of fragrances used in perfumes, cosmetics, food, drinks, soaps, detergents, flowers, fruits, etc., diluted as appropriate.

The material for the wall of the microcapsule can be selected as appropriate, but it is best to use a material that is not attacked by the contents and components contained in the glue or by the solvent used when applying the glue, and if the glue is a water-based one. If so, the walls of the microcapsules are made of a hydrophobic resin, and the contents of the microcapsules are perfume dissolved in water or the perfume itself.

As the microcapsules themselves, commercially available products (eg, Nippon Capsule Products Co., Ltd. and 3M Co., Ltd.) can be used, and these usually have walls made of hydrophobic resin.

Such microcapsules containing fragrance do not leak out the fragrance unless they are broken, but when they are opened at the adhesive part, they are pulled together with the glue and destroyed.

Although the present invention has the above configuration, in order to further ensure the effects of the present invention, it is effective to make the following modifications.

Figure 3 shows an example of such modification.
Margin area 4 where no glue is applied to the center top of flap area 2
Therefore, when such an envelope 1 is sealed, the margin part 4 is floating and is not glued, which is convenient because the sealed part is easily opened. Although the margin portion 4 is approximately semicircular in FIG. 3, it may have a shape other than this. Note that the blank space 4 may be used to print something that looks like a sticker 5 as shown in FIG. 4.

Figures 5 and 6 show other modified examples,
The one shown in FIG.
There is a
The envelope 1 is sealed with the glue part 3 and mailed. In FIG. 6, a booklet 9 is attached to the flap part 2 of the envelope 1 through perforations 6, and when it is desired to provide an application form, the paper 10 in front of the booklet 9 can be separated at the perforations 6. Good.

In addition, the microcapsules used for the adhesive part should be made with relatively weak mechanical strength such as the breaking strength of the wall material, or whose wall structure is not perfect, and where there is a boundary between the wall and the contents, so that it is easy to break when opening. It is better to use a wall with unclear or uneven wall thickness.

Furthermore, the envelope of the present invention can be made to emit a fragrance that matches the contents of the envelope. For example, if you are putting a food advertising pamphlet inside an envelope, if the glue contains microcapsules of flavorings with the smell of the food, the image of the food can be sensed olfactorily, increasing the advertising effect and making a strong impression. can be made stronger.

(Effect of the invention) When the envelope of the present invention is sealed by folding the sealing flap part and then opened again, force is applied to the adhesive part in the direction of opening, and the force is applied to the microcapsules contained. The capsule is ruptured and the fragrance content can evaporate and emit a fragrance.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams showing the state of the envelope of the present invention before use, Figure 3 is an explanatory diagram showing a modified example of the present invention, and Figure 4 is an illustration of the envelope of Figure 3 with its flap folded. An explanatory diagram showing the state, and FIGS. 5 and 6 are explanatory diagrams showing other modified examples. Explanation of symbols, 1...Envelope, 2...Flap section, 3...Adhesive section, 4...Margin section, 5...Seal, 6...Perforation, 7...Application form , 8
...Flyer, 9...Booklet, 10...Paper.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) An envelope that has an adhesive part containing microcapsules containing a fragrance in the sealing flap part of the envelope, and emits a fragrance when opened. (2) The envelope as defined in Paragraph 1 of the Claims for Utility Model Registration, in which the glue part is made of rewet glue.