JPS59186912A - Perfume-containing soluble film - Google Patents

Abstract

PURPOSE:A portable perfume film being soluble with water, sweat, humors, etc. to start release of perfume, having a long duration time of aroma, obtained by dispersing or blending a water-soluble high polymer film with a perfume-containing material. CONSTITUTION:A water-soluble high polymer film, for example, PVA, dextrin, etc., especially a PVA film having 300-1,200 polymerization degree and 87-93 saponification value, is dispersed or blended with a perfume-containing material. A material obtained by blending a water-soluble high polymer material having lower solubility than a base film, making the blend into partcles, making them hard, water-soluble microcapsule containing perfume fragrance, permeable microcapsule, etc. may be used as the perfume-containing material, and control of duration time of aroma and change in fragrance with time are made possible by using any of them alone or a combination of them. A contraceptive film with aroma can be obtained by dispersing a spermium-destroying contraceptive into the perfume film.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-purpose dissolvable perfume film, and is particularly suitable for use in mobile phones with a long duration of fragrance release, which is characterized by being dissolved by water, sweat, body fluids, etc. and starting to release fragrance. The purpose is to provide a convenient cosmetic film.

Traditionally, fragrances have been used either in fragrance atomizers to enjoy the scent or to counteract body odor, or as perfume paper (insoluble paper impregnated with perfume), or as water-soluble gels. It has been used as a sustained-release gel fragrance in which fragrance and surfactant are dispersed. But fragrance! Atomizers have the drawbacks of being a heavy container and having a short duration of scent release after being sprayed.Perfume paper is convenient for carrying, but the scent does not last long after the packaging is punctured. The drawbacks are that the time is short and that a residue remains after the fragrance is released.

In addition, although there has been significant improvement in the duration of fragrance release of sustained-release gel fragrances, the volatile components evaporate first, so the duration is longer. Not only is it difficult to create natural scents and deep scents due to restrictions on formulations, but the packaging is heavy, making it unsuitable for carrying around, and like perfume paper, there are a lot of residues. be.

The present invention solves such conventional drawbacks and problems by providing a soluble film in which a perfume-containing material is dispersed or mixed in a water-soluble polymer film.
If you simply try to disperse cosmetics and fragrances using conventional methods for manufacturing water-soluble polymer films, the aromatic components (particularly volatile aromatic components) will evaporate along with the water during the drying and curing process, resulting in a product with no commercial value. It has been difficult to make dissolvable cosmetic films.

In the present invention, this difficulty is solved by improving the drying and curing process, using soluble granules containing dispersed perfume materials, or using water-soluble or permeable microcapsules containing perfume materials. In addition, by balancing the dissolution rate of the perfume-containing material, we provide a new perfume carrier that keeps the fragrance components constant over time. It also opens up a new genre of fragrances that allow you to enjoy the designed changes over time.

In the simplest case of the present invention, that is, a soluble cosmetic film containing a highly retentive fragrance with few volatile components, water-soluble polymers such as polyvinyl alcohol, which are safe for the human body and odorless, In order to maintain the flexibility of the film, a plasticizer such as glycerin and water are added to the material and thoroughly stirred to form a slightly fluid viscous solution. Next, a fragrance prepared by mixing a fragrance consisting of a plant fragrance, an animal fragrance, and a synthetic fragrance is mixed with an emulsifier if necessary, and then mixed into the solution and stirred. The film-forming stock solution thus produced is cast onto a drying drum or belt heated to a lower temperature (60° C. to 90° C.) than usual to form a film.

The film is spray treated with an aqueous solution of boric acid or borax, depending on its condition, and heat treated at a temperature of 120°C to 180°C for a relatively short period of time. The dissolvable cosmetic film thus produced has strong initial wettability (and excellent fragrance retention).

Here, as the water-soluble polymer material, in addition to polyvinyl alcohol, an amylose such as dextrin may be used, or a mixture thereof may be used.

In particular, polyvinyl alcohol having a degree of polymerization of 300 to 1,200 and a degree of saponification of 87 to 93 is suitable, and dextrin may be added thereto.

In addition to glycerin, plasticizers include trimethylolpropane, diethylene glycol, and diethylene glycol, but glycerin is preferred. In addition, the fragrances are plant-based 7 μm fragrances such as p-s, jasmine, bell orchid, lilac,
Acacia, etc., lovely green scents of young leaves, and animal fragrances such as musk, civet, ampercris, castoreum, and musk tibata, but these days most of them have been replaced by synthetic fragrances.

Next, we will explain the soluble cosmetic film in which perfume materials containing a relatively large amount of volatile components are dispersed. The film is cast onto a film forming plate or a film forming belt, and as shown in Figure 1, it is dehumidified and dried at a low temperature in a closed chamber at a temperature below the decomposition temperature of the volatile components to remove only moisture and form the film. Let it harden.

A film-forming plate or a film-forming belt 2 on which a film-forming stock solution 3 is cast is installed inside the closed chicken bar 1, and moisture and volatility evaporated from the film-forming stock solution 3 are removed by a drying air flow from a 77-ton 6 for forced circulation. The flavor component is sent to the freezing device 4. The freezing device 4 freezes only water, and volatile flavor components circulate as gas. The airflow further passes through an indirect heating device 5 maintained at a temperature below the decomposition temperature of the volatile components, and sends a drying airflow into the chamber.

In this way, only water is removed from the film-forming stock solution, and perfume components including volatile perfume components are retained within the film.

Since the dried and cured film has the property of not transmitting aroma components, if necessary, an aqueous solution of boric acid or borax is sprayed on the film and, after drying, the film surface is heat-treated at 40°C to 180°C.

The soluble cosmetic film thus produced can retain volatile fragrance components, resulting in a soluble cosmetic film with natural depth.

In order to increase the fragrance release duration after dissolution of the soluble cosmetic film, the soluble cosmetic film is made from a water-soluble polymer material with relatively low solubility such as polyvinyl alcohol with a high degree of saponification (93-96). The above-mentioned method uses polyvinyl alcohol with a relatively low degree of saponification (85 to 88) as a water-soluble polymer material. Mix it into the film-forming stock solution to create a soluble cosmetic film. When such a soluble cosmetic film is exposed to water, sweat, body fluids, etc., the film with high solubility dissolves first and begins to emit fragrance, and the less soluble cosmetic and fragrance-containing materials are liberated. The cosmetic fragrance-containing material begins to dissolve, and the fragrance state can be maintained further.

The same holds true even when water-soluble microcapsules containing a perfume are used as the perfume-containing material.

If the perfume material is hydrophilic, the water-soluble microcapsule containing the perfume material can be mixed into an oil liquid such as olive oil and stirred to create a colloid, or if the perfume material is lipophilic, it can be mixed with the oil liquid. It is mixed into an aqueous solution containing a relatively low solubility water-soluble polymer material such as polyvinyl alcohol with a relatively high degree of saponification (93-96) and a plasticizer such as glycerin, and stirred. ((Wlo)/W) or (control) type protective colloid aqueous solution, spray or
Composite microcapsules may be prepared by a dry method and used as a material containing cosmetics and fragrances. The duration can be further increased by using permeable microcapsules instead of water-soluble capsules.

By using a combination of these perfume-containing materials having different solubility, it is possible to create a perfume film in which the fragrance component is stably soluble.

For example, a base note with low volatility and rich retention is dispersed in a perfume-containing material that has a different solubility from the film part, and a middle note with medium volatility is divided into granules from the film. It is dispersed in a perfume-containing material with relatively low solubility or encapsulated in water-soluble microcapsules.

Highly volatile top notes are encapsulated in permeable microcapsules.

With this configuration, the more volatile the fragrance, the longer it takes to dissolve, and the less volatile the fragrance, the faster it dissolves, so that a substantially constant fragrance can be obtained over time.

Furthermore, by blending various fragrances, they are made into fragrance-containing materials (soluble granules, microcapsules) each having a different dissolution rate, and then mixed to form a soluble fragrance film. If you do this, you can enjoy the scent that changes over time.

For example, the scent can change from the faint scent of plum blossoms to the attractive scent of cherry blossoms, and then layered with the scent of young leaves.

On the other hand, it is also possible to obtain an aromatic contraceptive film by directly dispersing the spermicidal contraceptive in the above-mentioned soluble cosmetic film, or by mixing it in soluble granules or encapsulated in microcapsules. .

Since the soluble fragrance film of the present invention can have various functions as described above, it can be used as a fragrance carrier for women to carry, or as a portable indoor fragrance film that can be soaked with water and enjoyed. Not only can it be used, but it can also be used in combination with fresh flowers to create fragrant art, and can also be used as an aromatic contraceptive film.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle of the drying and curing apparatus. 1. Closed chamber; 2. Film forming plate or film forming belt, 3
．． Cast film-forming stock solution, 4. Refrigeration equipment, 5° heating equipment,
61 Forced circulation fan patent applicant Rei Takaguchi

Claims (1)

[Scope of Claims] 1. A soluble cosmetic film characterized in that a water-soluble polymer film has a perfume-containing material dispersed or mixed therein. 2. The perfume-containing material is used as a perfume compound perfume, and the drying and curing process of the perfume film is carried out in a closed chamber using a dehumidifier consisting of a combination of a moisture-freezing part and a heating part for temperature adjustment. Claim No. 1
Dissolvable cosmetic film. 3. Divide the soluble cosmetic film from the previous section into granules,
The soluble perfume film according to claim 1, wherein the hardened material is used as the perfume-containing material and is mixed into water-soluble polymer films having different solubility. 4. The soluble cosmetic film according to claim 1, wherein the cosmetic fragrance-containing material is composed of water-soluble microcapsules containing a cosmetic fragrance. 5. The soluble perfume film according to claim 1, wherein the perfume-containing material is composed of permeable microcapsules containing a perfume. 6. The dissolvable cosmetic film according to claim 1, characterized in that a plurality of types of the perfume-containing materials having different dissolution rates are mixed. 7. The dissolvable cosmetic film according to claim 1, characterized in that a plurality of types of perfume-containing materials containing different perfumes and having corresponding dissolution rates are mixed. 8. The soluble cosmetic film according to claim 1, wherein a spermicidal contraceptive agent is dispersed in the water-soluble polymer film.