JPS6013700B2 - gel deodorant air freshener - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an improved gel deodorizing fragrance.

Currently, inorganic or organic water-containing gel-like materials formed as appropriate are used as base materials for the purpose of eliminating strange or bad odors and imparting pleasant aromas to the interiors of toilets, kitchens, living rooms, car necks, aircraft, ships, etc. Various types of gel deodorizing fragrances are commercially available, which are obtained by adding aromatic agents (fragrances) to gel deodorizing fragrances.

Conventionally, in the production of such gel swamp odor fragrances, carrageenan, gum arabic, gelatin, agar, carboxymethyl cellulose, etc. have been used as base materials.

However, in deodorant air fresheners containing such base materials, the water and base material may separate due to temperature rise during storage, or the inside of the gel may be in a wet state. Only the surface dries, making it difficult for moisture and fragrance to evaporate.Also, the amount of moisture and fragrance released is large at the beginning of use, but as time passes, the amount of moisture and fragrance released gradually decreases. On the other hand, t
Polyvinyl alcohol with a saponification degree of 50-100% is used as a gel deodorant air freshener that solves the problems mentioned above.
A product consisting of a water-soluble thermosetting resin initial condensate and a fragrance (see Hakama-Seki Publication No. 52-3832) has been proposed; In addition to emitting a foul odor, formalin has the disadvantage of being toxic.

In order to eliminate the disadvantages and drawbacks of the conventional gel deodorant air fresheners, the present invention has been completed through intensive research. {0} style General formula (where RI is a hydrogen atom or a methyl group or a methoxy group, R2 is an amino group or a hydroxyl group, R3 is a hydrogen atom or an amino group, R4 and R5 are each a hydrogen atom or -S03Na) "R6 represents a hydrogen atom/group or -SQNa, respectively.

However, when R4 is a hydrogen atom, R5 and R6 are each an amino group or -S03Na. X3 represents a hydrogen atom, a hydroxyl group, or a carboxyl group, respectively.

However, at least one of X2, X3, X4 and X5 is a hydroxyl group or a carboxyl group.

Next, the present invention will be explained in detail.

First of all, as the 'A' component in the present invention, polypynyl alcohol has a degree of saponification of 80 to 100% and a degree of polymerization of 30%.
0 to 3,000 can be suitably used, and in the present invention, partially esterified, etherified or acetalized modified polyvinyl alcohol tovinyl ester and other monomers can be used. Copolymers such as ethylene-vinyl acetate copolymers, vinyl chloride-vinyl acetate copolymers, and the like can also be used as long as they do not significantly lose their properties as polyvinyl alcohol.

Polyvinyl alcohols with a saponification degree of less than 80% do not gel, and therefore polyvinyl alcohols with a saponification degree of less than 80% cannot be applied to gel aroma odor control agents.

In addition, if the degree of polymerization is less than 30 degrees, the gelled product is too soft and difficult to maintain in a certain shape.
On the other hand, if the degree of polymerization exceeds 3,000, the gelled product becomes too hard and it becomes difficult to wick away moisture, and such products cannot be suitably applied to gel fragrance deodorants.
Next, it is used in the present invention. The 'component is used to gel the polyvinyl alcohol, which is a diazo compound represented by the general formula (1) and/or a phenol represented by the general formula (0). It is a compound. In the above general formula (1), R1, R2, R
3, R4, R5 and R6 each represent an atom or group as described above, but in the present invention, R4 in the formula
When is a hydrogen atom, R5 and R6 each need to be an amino group or -S03Na. Examples of the diazo compound represented by the general formula (1) include Congo Red (CoRed C.1.
0irectRed 28), Congo Corinth (Co
NGOCorinth, C. 1. DirectRedl
0), Japanol Violet Extra (C.I.
1. DirectViolet12), Benzova-Purine Crab (C.1.DirectRed 2), Direct Blue Wave (C.1.DirectBlue6), Direct Sky Blue $ (C.1-DirectB1u15)
) etc. are exemplified. In addition, in the above general formula (0), X1,
X2, X3, X4 and x5 each represent Fujiko or a group as described above, but in the present invention,
, X3, X4 and x5 is essential to be a hydroxyl group or a carboxyl group.

Examples of the phenolic compound represented by the general formula (b) include catechol, resorcinol, hydroquinone, phloroglucin, gallic acid, 1,2,3-trioxybenzene, 1,2,4-trioxybenzene, etc. be able to. The ratio of the {i} component and the 'o} component is as follows: [0.
It may be 5 to 1 part by weight, but the amount used depends on the degree of saponification of the polyvinyl alcohol as a component,
It goes without saying that the degree of polymerization can be adjusted as appropriate within the above range depending on the type of the (o' component, etc.). It is produced by mixing and gelling a gelling agent (O-component) and fragrances such as rose, jasmine, violet, lemon, and chinese pear.

In addition, it is preferable to use emulsifiers such as fatty acid salts of higher alcohols, anionic surfactants such as alkyl sulfates, nonionic surfactants such as sorbitan fatty acid esters, and polyoxyethylene fatty acid esters. There is no problem in adding preservatives, softeners, insect repellents, gelling aids such as boric acid, borax, calcium chloride, and bitter salt, coloring agents, and fillers such as clay, talc, and calcium carbonate. The gel deodorant air freshener of the present invention is environmentally safe, easy to manufacture and handle, has high gel strength, and does not change over time (creep).
In addition to the feature that only the surface of the gel does not harden, the release of water or fragrance is almost constant, and it is also excellent in water resistance.

Next, the present invention will be specifically explained with reference to Examples.
The present invention is not limited to this.

In addition, all parts in each example indicate parts by weight.

Examples 1 to 11 An aqueous solution of polyvinyl alcohol of the type shown in the table below, 10 types, and a diazo compound and/or a phenolic compound (gelling agent) in the amount shown in the table.
, plasticizer, 5 parts of fragrance, 0.2% emulsifier, and bulking agent were mixed using a stirrer at a temperature of 60°C for 10 minutes, the mixed liquid was poured into a conical mold, and left in the refrigerator (temperature: 5°C) for 4 hours. The mixture was gelated to obtain a gel deodorizing fragrance.

When the appearance and properties of these gel deodorizing fragrances were examined, they were as shown in the table below.

○ 〇〇 ○ thigh bonito pond Ichi 4 Loiro and other fine pongee Tsumugi Kazuna ※ * * and PVA4 as a 15% aqueous solution, PVA2
was used as a 10% aqueous solution, and PVA3 was used as a 20% aqueous solution.

Comparative Example 1 After heating and dissolving 2 parts of agar and 98 parts of water, the mixture was cooled to about 60°C, and then 5 parts of commercially available rose flavor and 1 part of glycerin were added and mixed for 1 minute using a stirrer.
This liquid was poured into a mold and allowed to cool to obtain a gel deodorizing fragrance.

Comparative Example 2 A 15% aqueous solution of polyvinyl alcohol with a degree of saponification of 98.8% and a degree of polymerization of 1760 was added to 10 parts of a commercially available rose fragrance, 1.5 parts of ethylene golicol, and 0.2 parts of sodium lauryl sulfate, and then mixed uniformly. After mixing, 0.5 part of borax was added to obtain a gel deodorizing fragrance.

When this gel deodorizing fragrance was left for one hour, it lost its shape and was found to be poor in shape retention. The gel deodorant air fresheners obtained above (Examples 1, 4, 5 and Comparative Example 1) were left indoors (temperature 27-2 0, humidity 80%), and the remaining weight was measured and the results are shown in the attached graph. It was shown to.

As is clear from this graph, it can be seen that the residual amount of the gel deodorizing fragrance made using the polyvinyl alcohol composition according to the present invention is larger than that of Comparative Example 1.

[Brief explanation of drawings]

The drawing shows a gel deodorizing fragrance using the polyvinyl alcohol composition of the present invention and a conventionally known gel deodorizing fragrance left in a room, and the residual weight thereof was investigated. Curve 1: Gel deodorizing fragrance obtained in Example 1, curve D
...Gel deodorizing fragrance obtained in Example 4, curve m・
...Gel deodorizing fragrance obtained in Example 5, curve W...
Gel deodorizing fragrance obtained in Comparative Example 1.

Claims (1)

[Claims] 1. (a) Polyvinyl alcohol with a saponification degree of 80 to 100%, and (b) (A) General formula ▲ Numerical formula, chemical formula, table, etc. ▼ (In the formula, R^1 is a hydrogen atom , a methyl group or a methoxy group, R^2 is an amino group or a hydroxyl group, R^3 is a hydrogen atom or an amino group, R^4 and R^5 are each a hydrogen atom or -SO_3Na, R^6 is hydrogen Each represents an atom, an amino group, or -SO_3Na. However, when R^4 is a hydrogen atom, R^5 and R^
6 is an amino group or -SO_3Na, respectively) and/or (B) General formula ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (In the formula, X^1, X^2, X^4 and X^5 each represent a hydrogen atom or a hydroxyl group, and X^3 represents a hydrogen atom, a hydroxyl group, or a carboxyl group, respectively.However, among X^1, X^2, X^3, X^4 and X^5, A gel deodorant fragrance comprising a phenol compound (at least one of which is a hydroxyl group or a carboxyl group), (c) a fragrance, and (d) water.