JP2942862B2 - Aromatic sheet member and method for producing the same - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to various aromatic cards, pamphlets, sheet members such as direct mails, and a method for producing the same.

[Conventional technology]

Conventionally, various sheet-like members having fragrance have been known, and the general configuration thereof is as shown in FIG.
A binder in which microcapsules 21 in which a fragrance is encapsulated are previously mixed in a predetermined portion of the surface of the sheet-like base material 20.
22 is applied. It is also known to use a printing ink as the binder 22, and it has been proposed to print the surface of the sheet-like substrate 20 by, for example, screen printing (see Japanese Utility Model Laid-Open No. 62-199774).

[Problems to be solved by the invention]

However, conventionally, since the microcapsules 21 containing the fragrance and the binder 22 are applied in a mixed state, the microcapsules buried in the binder 22 are applied.
The microcapsules 21 which are applied together with the binder 22 have only a part of the microcapsules 21 exposed on the surface of the binder 22, and only exert the scenting action.

Therefore, in the related art, there is a drawback that the intensity of perfume is not sufficient and the fragrance is weak as compared with the usage amount of the microcapsules 21 in which the perfume is sealed. Further, when it is desired to use sustained-release microcapsules, there is a disadvantage that the binder component covers the microcapsules for sustained release of the fragrance, and the sustained-release property is substantially lost,
Practical application was difficult. Further, a solvent that dissolves or disperses certain components of the binder 22 or the binder 22,
By penetrating into the microcapsules 21 encapsulating the fragrance mixed with the binder 22, the fragrances are altered, or conversely, the fragrances are extracted from the microcapsules by the binder 22 or the solvent in which the binder 22 is dissolved or dispersed. Therefore, once mixed, they cannot withstand long-term storage, and in some cases have to be discarded even in an unused state, which is disadvantageous in that it is uneconomical. In addition, a coating device that applies the microcapsules together with the binder also requires a special device that does not destroy the microcapsules.For example, when using printing ink as the binder 22, the coating device is a printing device. However, an offset printing device or a letterpress printing device which exerts pressure during printing cannot be used, and a silk screen printing device has to be used.

An object of the present invention is to solve these drawbacks and to provide an aromatic sheet-like member capable of maintaining sufficient aromaticity for a long period of time and a method for producing the same.

[Means for solving the problem]

In order to achieve the above object, the aromatic sheet-like member of the present invention is provided with a predetermined printing layer of ultraviolet curable ink on a predetermined portion of at least one surface of a sheet-like substrate such as various cards, pamphlets, and direct mails. A microcapsule in which a fragrance is sealed is fixed on the surface of the printing layer.

In addition, the method for producing an aromatic sheet-like substrate of the present invention is characterized in that, after providing a predetermined printing layer with an ultraviolet curable ink on a predetermined portion of at least one surface of the sheet-like substrate, the printing layer is cured before the printing layer is cured. A microcapsule in which a fragrance is sealed is attached to the surface, and then the printing layer is cured by irradiating ultraviolet rays, and the microcapsule is fixed to the surface of the printing layer to form the microcapsule.

[Action]

Since the microcapsules encapsulating the fragrance are fixed to the surface of the printing layer made of the ultraviolet curable ink, all the used microcapsules are exposed and contribute to the scenting action, while only the required amount is used. Without waste,
In addition, before use, the microcapsules and the ultraviolet curable ink are stored separately, so that they do not adversely affect each other and do not deteriorate. Further, since scenting can be achieved only by providing a printing layer with an ultraviolet curable ink, it is simple.

〔Example〕

Hereinafter, a preferred embodiment in which the present invention is applied to a telephone card will be described in detail with reference to FIGS. 1 to 3 of the accompanying drawings, but it is needless to say that the present invention is not limited to this embodiment.

Here, FIG. 1 is an explanatory view schematically showing a preparation process, FIG. 2 is a plan view showing a prepared telephone card,
FIG. 3 is a partially enlarged sectional view of FIG.

As shown in FIG. 1, a card substrate 1, which is a sheet-like substrate made of an appropriate material such as plastic or paper, is processed in advance to have a function as a telephone card, and is stacked in a predetermined state. The sheets are sequentially fed out onto the transfer belt 3 one by one by the transfer roller 2 from the top one. The card substrate 1 sent to the printing unit 4 by the transfer belt 3 is subjected to predetermined printing with an ultraviolet curable ink 11 (see FIG. 3), and a printing layer is provided (see FIG. 2). The UV-curable ink 11 acts as a binder, and a varnish component in the vehicle of the ink has a binder effect.

The card substrate 1 provided with the print layer is further transported by the transport belt 5 and has a particle size of 7 to 7 in which the fragrance is encapsulated.
Microcapsules 12 of about 10 μm and particle size of 10-20 μm
The UV curable ink 11 is allowed to pass through the fragrance capsule containing section 6 in which a protective material 13 such as corn starch or silica is mixed and contained. Here, the microcapsules 12 and the protective material 13 adhere only to the surface of the printing layer, which is the portion where the ultraviolet-curable ink 11 is applied.

Next, a microcapsule 12 in which a fragrance is sealed only in a predetermined portion where a printing layer is provided with an ultraviolet curable ink 11 and a protective material are provided.
The card base material 1 to which the microcapsules 13 are attached is transferred to the ultraviolet irradiation unit 8 by the transfer belt 7 and irradiated with ultraviolet light, whereby the ultraviolet curing ink 11 is hardened, and the microcapsules 12 and the microcapsules 12 are hardened. The protective material 13 is securely fixed to the printing layer, and the telephone card material 14 having fragrance is obtained. Then, they are sequentially deposited on the stacker 9.

As shown in FIG. 3, the telephone card 15 thus produced is exposed to the surface of the printing layer made of the ultraviolet-curable ink 11, and the microcapsules 12 containing the fragrance and the protective material 13 are joined together. The presence of the microcapsules 12 will contribute to the fragrance action. When the capsule is broken, the encapsulated fragrance is radiated to the outside and emits a scent, but in the present embodiment, the particle diameter is larger than that of the microcapsule 12. Since the protective material 13 is mixed, the capsule is not destroyed more than necessary when the telephone card 15 is handled, and a sufficient fragrance can be reliably maintained for a longer period of time.

In addition, if a sustained-release microcapsule having a coarse wall film is used, the encapsulated fragrance is gradually diffused to the outside without breaking the capsule. In addition, protective material 13
Need not necessarily be mixed, and even if this is not mixed, the used microcapsules all exhibit an effective fragrance, so that sufficient fragrance can be maintained for a long period of time. Further, in order to attach the microcapsules 12 encapsulating the fragrance to the printing layer made of the ultraviolet curable ink 11 provided on the card substrate 1, the microcapsules 12 enclosing the fragrances are passed through the fragrance capsule housing part 6 accommodating the microcapsules 12 encapsulating the fragrance. Alternatively, a method of spraying the microcapsules 12 containing the fragrance on the card base material 1 may be used. Alternatively, a printing layer may be provided on both sides of the card substrate 1 with an ultraviolet curable ink 11, and a microcapsule 12 containing a fragrance may be attached thereto. Further, the material of the card substrate 1 may be any material that can be formed into a sheet, such as plastic, paper, and synthetic paper. Further, it goes without saying that the present invention can be applied to various cards other than telephone cards, pamphlets, direct mails, and the like. In addition, it goes without saying that the configuration of the creation apparatus used in the present invention can be variously changed.

〔effect〕

As is clear from the above description, according to the aromatic sheet-shaped member of the present invention, the microcapsules encapsulating the fragrance are all exposed on the surface of the printing layer made of the ultraviolet-effect ink, so that sufficient aromaticity is maintained. In addition to being able to last for a long period of time, it is also possible to use microcapsules with sustained release, and the amount of microcapsules encapsulating fragrances and UV curable ink is also required to a minimum and remains unused It is economical because it is not discarded.Furthermore, since the microcapsules are directly fixed to the printing layer made of UV-curable ink, the sheet surface is almost smooth without large irregularities, and it is easy to handle. There is no risk that the microcapsules exposed during handling may unnecessarily rub against other members and be peeled or broken. In addition, according to the production method of the present invention, the curing of the ink and the fixing of the microcapsules can be performed simultaneously by one operation of irradiating ultraviolet rays, so that the method and time tolerance of the operation of attaching the microcapsules are large. Thus, there is an advantageous effect that an aromatic sheet-like member having many advantages as described above can be easily and efficiently produced.

[Brief description of the drawings]

1 to 3 show a preferred embodiment in which the present invention is applied to a telephone card, FIG. 1 is an explanatory view schematically showing a production process, and FIG. 2 is a plan view showing the produced telephone card. FIG. 3 is a partially enlarged sectional view of FIG. 2, and FIG. 4 is a partially enlarged sectional view of a conventional example. DESCRIPTION OF SYMBOLS 1 ... Card base material, 4 ... Printing part, 6 ... Perfume capsule storage part, 8 ... Ultraviolet irradiation part, 11 ... Ultraviolet curable ink, 12 ... Microcapsule containing perfume, 13 ... Protection Lumber, 15… phone card

Claims (2)

(57) [Claims] 1. A printed layer is provided on at least a predetermined portion of at least one surface of a sheet-like base material with an ultraviolet curable ink, and microcapsules containing a fragrance are directly fixed to the surface of the printed layer. An aromatic sheet-like member. 2. After providing a predetermined printing layer with an ultraviolet curable ink on at least one predetermined portion of the sheet-like substrate,
The fragrance is prepared by attaching microcapsules containing a fragrance to the surface of the print layer before the print layer is cured, and then curing the print layer by irradiating ultraviolet rays to fix the microcapsules on the surface of the print layer. How to make a sheet member.