JPS58177138A - Liquid absorbable molded substance - Google Patents

Abstract

PURPOSE:To obtain a molded substance for an aromatic agent high in a perfume absorbing amount and, therefore, excellent in aroma releasability and aroma holding life, by a method wherein water is added to a mixture consisting of synthetic calcium silicate and baked gypsum in an amount of 10 times or less on the basis of wt. and the resulting composition is molded and dried. CONSTITUTION:Water is added to a mixture consisting of synthetic calcium silicate and baked gypsum in an amount of 10 times on the basis of wt. and the resulting composition is molded and dried to prepare a liquid absorbable molded substance. Because this molded substance can be molded into an optional shape and has characteristics absorbing and holding a large amount of a liquid substance such as liquid perfume or volatile deodorant, it is applied to an aromatic decorative article or an ornament used as a deodorant and the utilization range thereof is wide. For example, it is used as an aromatic agent or a deodorant molded into a figurine or an animal shape, a picture frame or accessories having aromatic as well as has lasting property of aroma relesability and, therefore, utility thereof is high.

Description

[Detailed description of the invention] The present invention relates to a molded article with enhanced liquid adsorption ability.

2. Description of the Related Art It has been known that objects shaped like dolls, animals, etc. are impregnated with fragrance and are sold as interior decorations that also serve as an air freshener. However, it has been pointed out that conventional products of this type do not have enough fragrance to diffuse the fragrance throughout the room due to the small amount of fragrance adsorbed, and have shortcomings such as short fragrance retention life.

A main object of the present invention is to provide a molded article for a fragrance that has a large number of fragrance adsorption lids and therefore has excellent fragrance release properties and a long fragrance retention life.

Another object of the present invention is to provide a highly liquid-absorbing molded article that has enhanced adsorption ability not only for perfumes but also for other liquids such as volatile liquid deodorants.

The inventor of the present invention previously discovered that a molded product of synthetic calcium silicate could be used as a fragrance adsorption carrier and was useful as an aromatic agent, and filed a patent application (Japanese Patent Application No. 117229/1983).
The molded product in this prior application can be manufactured economically when the target is a relatively simple molded product such as a plate or a sphere, but it can be manufactured economically if the molded product is a relatively simple molded product such as a plate or a sphere. The disadvantage of this method is that it requires manual work one by one, resulting in poor productivity. That is, if a slurry of calcium silicate was poured into a mold for a doll or the like to avoid manual labor, it would take a long time to dry.

The present inventors have developed a molding method that allows mass production of complex-shaped molded products such as dolls, elliptical materials for use, and
As a result of intensive consideration of the formulation, we added Yakinisho to synthetic calcium silicate and made it into a slurry with water.
We found that the molded product obtained by pouring it into a mold and drying it served the intended purpose, and that the addition of a cellulose compound that exhibits thermal gelling properties during heating and drying was effective in improving the fi [fi] of the molded product. The present invention has now been completed.

To explain the present invention in detail, first, as the synthetic calcium silicate used in the present invention, a liquid fragrance having a large adsorption capacity, for example, at least 501%, preferably about 100%, is used.
- Synthetic calcium silicate that can adsorb 250% by weight is preferred; furthermore, the surface area of the synthetic calcium silicate powder is 99 d/f or more, preferably about 100 to 150 gin/y1
The particle size is desirably 20/gu or less.

Next, as the calcined gypsum used in the present invention, calcium sulfate (C, SO cloudy +HmO), which is obtained by heating and dehydrating calcium sulfate dihydrate (C, SO4.2HsO) to form a hemihydrate salt, is used. There are no particular restrictions on the manufacturing method and particle size.

In the present invention, the ratio of calcined gypsum to synthetic calcium silicate is 10 times that of calcined gypsum for 100 parts of synthetic calcium silicate in Toro ratio, depending on the strength of the desired molded product or the amount and type of liquid to be adsorbed. However, from the viewpoint of the balance between the strength of the molded product and the liquid absorption ability, the range below 2.
It is preferred to use ~10 times the amount of water. In addition, if you want to obtain a molded product that takes advantage of the adsorption ability of synthetic calcium silicate without increasing the strength of the molded product with other powders described later, reduce the amount of calcined gypsum.For example, for 100 parts by weight of synthetic calcium silicate, A quantitative ratio such as using 10 parts by weight of calcined gypsum may also be selected.

When drying the molded product of the present invention, either natural drying or heat drying may be used as a drying method, but heat drying is preferable in consideration of productivity during mass production. When heat-drying methods are used, cracking or distortion of the molded product tends to occur, so cellulose with heat gel properties is used to prevent this and to add toughness to the molded product. Hydroxyglobil cellulose and methyl cellulose are commonly used as this type of cellulose powder, which is preferably added to the powder in advance. The amount used is 5 to 201 i' for the combination of synthetic calcium silicate and calcined gypsum! Ikqb is appropriate.

In the present invention, the slurry liquid obtained by adding water to a mixture of synthetic calcium silicate and calcined gypsum has a value of 8.0 to 9.4. For example, when a liquid fragrance or deodorant liquid is adsorbed, depending on the type of fragrance, the emitted scent may change over time, or the volatilization of the active ingredient from the adsorbed deodorant liquid may be inhibited. When we investigated the cause, it became clear that the PH of the molded product, which is an adsorption carrier, was the cause. Therefore, when preparing the molded product of the present invention, it is a preferable means to adjust the PM of the molded product by mixing other powders depending on the type of liquid to be adsorbed.

For example, in order to avoid deterioration of fragrance over time, a slightly acidic powder substance, such as activated alumina powder, is added to a mixture of synthetic calcium silicate and calcined gypsum, and Pi
．． For example, it may be brought closer to the range of 0 to 7,6. Materials used for this purpose include powders of inorganic compounds such as silicon dioxide, activated alkali, or magnesium aluminate metasilicate.

Furthermore, when molding the molded product of the present invention, filler such as finely powdered calcium carbonate (
Addition of fillers), addition of various dyes or pigments for the purpose of coloring, or addition of mordants such as carboxymethyl cellulose, cellulose impurities such as droxyethyl cellulose, or baked alum for the purpose of improving the colorability of molded products. There is absolutely no problem with adding it. These may be mixed in powder form or in slurry.

To obtain the molded product of the present invention, the above-mentioned other powders are added as necessary to the mixture of synthetic calcium silicate and calcined gypsum, the mixture is uniformly mixed, water is added to form a slurry, and the mixture is poured into a desired mold and left to dry. It may be dried or heated.

In this case, it is not possible to use water mixed with a small amount of fragrance and aromatic alcohol, such as eau de cologne, or water with a small amount of a volatile deodorizing substance dissolved in water, such as a stabilized chlorine dioxide solution, as the slurry water. , there is no problem as long as it does not impair moldability and drying properties of the molded product.

The molded product of the present invention can be molded into any desired shape,
Moreover, since it has the feature of adsorbing and retaining a large amount of liquid substances such as liquid fragrances and volatile deodorants, it has a wide range of applications such as fragrant decorations and decorative ornaments that also serve as deodorizers.

For example, it can be used in air fresheners or deodorants in the shape of dolls, animals, etc., fragrant forehead frames, or accessories, and has a long-lasting fragrance that is not found in conventional products, making it highly effective.

Examples will be shown below, where parts and parts are by weight, respectively.

Example 1 100 parts of commercially available synthetic calcium silicate (trade name Fluorite R1 manufactured by Tokuyama Soren Co., Ltd.) and 1 liter of calcined gypsum were added.

1 part and 5 parts of activated alumina powder (manufactured by Mizusawa Chemical Industry Co., Ltd.), 400 parts of water was added to this to make it as hard as oil clay, and this was filled into a dog mold. After 2 days, it was removed from the mold and air-dried for 7 days to obtain a 50F molded product of the present invention. Add Chanelna 5 types of liquid fragrance to this molded product (
The product to which 60 parts (manufactured by Ushida Kogyo Co., Ltd.) was adsorbed continued to emit a fragrance for about 5 months when left open as an aromatic ornament.

Example 2 Commercially available synthetic calcium silicate powder (trade name Microcell E,
100 parts of imported product), 1900 parts of calcined gypsum, and 55 parts of hydroxypropyl cellulose (trade name: Metrose, manufactured by Shin-Etsu Chemical Co., Ltd.) were mixed, and 1β00 parts of water was added to form a slurry. The pH of this slurry was 7.6. 50
This slurry was poured into a frame with a frame size of % x 120%, and after one day, it was taken out from the frame and dried at 80 to 90°C for 2 hours to obtain a molded product of the present invention. This forehead tab (5O1) adsorbed with 25 parts of rose flower-like liquid fragrance had a fragrance retention period of about 8 months as an aromatic ornament.

Example 8 100 parts of the synthetic calcium silicate used in Example 1, 800 parts of calcined gypsum, go part of heavy calcium carbonate powder and go part of hydroxyethyl cellulose powder (trade name: Fujihex, Fujike Dencal Co., Ltd. as>so part) were uniformly mixed. After that, water
, goo part was added thereto to make a slurry and poured into a 90%φ dish-shaped mold.After one day, the frame was removed and dried at Bθ to 70°C for 6 hours. As seen in this way, 10.000 ppm of stabilized chlorine dioxide solution (
A product to which 80 parts (trade name: Biotalk, manufactured by Sukegawa Chemical Co., Ltd.) was adsorbed maintained a deodorizing effect for about 40 days when placed in a tool refrigerator.

Example 4 A mixture of 100 parts of synthetic calcium silicate used in Example 2 and 1,000 parts of calcined gypsum was added with 0. To stabilize O8-, a chlorine oxide solution was added little by little and applied to the affected area as a cast for a patient with a sprain. After curing, 8 parts of deodorant fragrance was applied to the entire surface and adsorbed, which was found to be effective in deodorizing sweatiness and the like, and the effect lasted for about 10 days.

(that's all) Patent applicant: Enkura Business Co., Ltd. (1

Claims (1)

[Claims] A liquid-absorbing molded product characterized by adding water to a mixture of synthetic calcium silicate rain 1 and calcined gypsum in an amount of 10 times or less in weight ratio, and molding and drying the mixture.