JP3265596B2 - Odor generation prevention member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a member for preventing the generation of offensive odors in a sanitary space, and more particularly to a member for preventing the generation of offensive odors mainly by ammonia by an enzymatic reaction.

[0002]

2. Description of the Related Art Conventionally, for the malodor of sanitary space, not only a method such as covering a generated part but also masking with an aromatic and neutralization by a chemical reaction have been generally used. The main focus was on countermeasures against odors.

[0003]

As sanitary, clean, natural, and the like have recently become keywords, it is a social background that the use of amenities in our living spaces is highly valued and evaluated.

[0004] Sanitary environmental control equipment has been developed and spread among them, and the filth discharged from the human body with the advancement of the equipment is quickly removed. The bad smell has become a problem.

For example, regarding a method of preventing the generation of offensive odor due to putrefaction of urine scattered on a floor member, a cleaning period is set at two times a week.
With the recent labor shortage and changes in lifestyles, the number of times has become a pressing issue.

[0006]

Means for Solving the Problems The present invention is silver thiosulfate as inhibitors of c nuclease or enzyme uricase
An object of the present invention is to provide a member which suppresses generation of offensive odor by adding and mixing a complex .

[0007]

FIG. 2 shows a mechanism for suppressing the offensive odor of urine scattered on floor members such as toilets. Thiosulfat for toilet floor members
By adding a silver complex by a method such as addition or coating,
Suppresses the enzymatic decomposition reaction of urea / uric acid, which is the main component in urine, to ammonia, and suppresses offensive odor due to ammonia. H
Osulfato silver complex is [Ag _X (S ₂ O ₃ ) _Y ] ^- (X
= 1, 2, 3,. . . , Y = 1, 2, 3,. . . ) Molecular structure
Complex.

[0008] Further, the mechanism of suppressing odor will be described. Enzymatic degradation of urea is hydrolysis by urease as shown in (Chemical Formula 1). Conditions for advancing this reaction are temperature (0 to 60 ° C.), pH (6 to 9) and the presence of urease, which is an enzyme that most bacteria in the surrounding environment possess. On the other hand, the conditions for suppressing this reaction are as follows:
Fat silver complexes act as inhibitors.

[0009] The silver thiosulfato complex also functions as an inhibitor for uricase involved in the decomposition reaction of uric acid. Uric acid is decomposed into urea to produce ammonia which eventually causes malodor, and thus the silver thiosulfato complex as an inhibitor of uricase also acts to prevent malodor.

[0010]

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, the main cause of odor caused by nitrogen-based wastes discharged from the human body is caused by decay. For example, the main cause of odor in toilets is decay of urine scattered on toilet floor members. When the malodor was generated, the malodor component was ammonia as shown in FIG. It is based on the fact that this ammonia is generated by a decomposition reaction of urea or uric acid, which is a main component in urine, by enzymes possessed by various bacteria.

Next, an embodiment of the present invention will be described.

[0013] (Embodiment 1) FIG. 4 is a sectional view of the toilet floor member, malodor prevention member 2 was supported thiosulfate silver complex body of silica gel unsaturated polyester resin 1 is about based on 100 parts by weight resin 3
It is mixed and dispersed at a ratio of parts by weight.

On the floor of the toilet, 30 cm of the configuration shown in FIG.
A member with a square and 5 mm thickness will be provided. A flush toilet is installed near the center of this floor.

As a result of a test on the generation of malodor due to flying urine when the toilet having the above configuration was actually used, almost no malodor was generated as compared with the flooring agent containing no inhibitor.

Further, in order to determine the amount of offensive odor, the above floor member and the same resin member containing no inhibitor were cut into 2 cm × 3 cm, respectively, and put into a 25 mmφ × 100 mm test tube together with 30 ml of urine and sealed. 4 at 25 ° C
After culturing for one day, the ammonia concentration in the urine upper space was measured with an ammonia detector tube.

FIG. 3 shows the characteristics of the inhibitory effect of the silver thiosulfato complex on the urease activity. As is clear from this figure, the silver thiosulfato complex exerts an inhibitory effect, inhibiting the urease enzyme reaction of urea and suppressing the production of ammonia, which causes malodor.

Table 1 shows the odor control characteristics.

(Table 1) Ammonia concentration (ppm) in urine upper space Inhibitor-containing resin (<0.1) Below detection limit Non-comprising resin 1.5 (Example 2) FIG. 5 shows a cage for small animals such as experimental animals . And a metal cage lattice 7, a metal cage floor 8, and a bat 9. The metal cage floor 8 is a net made of a 2mmφ metal wire in the shape of a mushroom.
The surface of the metal wire, are coated painted fluorine resin dispersed with malodor prevention member 10 was supported thiosulfate silver complex body of silica gel.

When the rats were bred in the small animal breeding cage having the above-described structure, the odor generated was significantly suppressed by replacing the rags with sterile sawdust as appropriate, as compared with the case of breeding in a normal small animal breeding cage.

(Embodiment 3) FIG. 6 is a partial sectional view of a disposable diaper,
1, a water absorbing layer 12 and a waterproof layer sheet 13 are laminated. The water-absorbing layer 12, thiosulfato silver complex body malodor prevention was supported on silica gel member 14 is the water-absorbent resin 10
It is mixed and dispersed at a ratio of about 1 part by weight to 0 part by weight.

When the disposable diaper having the above structure was used, an effect of suppressing odor during standing after use was recognized as compared with a normal diaper.

[0023]

As described above, when applied to, for example, a toilet floor member or a sheet, the odor generation preventing member of the present invention can prevent odor generation from flying urine with high safety to the human body and environment. Suppress. It can also be used for small animal breeding cages and disposable diapers.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an odor generation mechanism of a conventional example.

FIG. 2 is an explanatory diagram of an odor control mechanism according to the present invention.

FIG. 3 is a graph showing the characteristics of the inhibitory effect of a silver thiosulfato complex on urease activity.

FIG. 4 is a sectional view of a toilet floor member according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view of a small animal breeding cage according to another embodiment of the present invention.

FIG. 6 is a cross-sectional view of a disposable diaper according to another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Toilet member constituent resin 2 Odor generation prevention member 7 Metal cage lattice part 8 Metal cage floor part 9 Bat 10 Odor generation prevention member 11 Water permeable layer sheet 12 Water absorption layer 13 Waterproof layer sheet 14 Odor generation prevention member

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-17160 (JP, A) JP-A-1-124460 (JP, A) JP-A-1-153748 (JP, A) JP-A-3-153 117442 (JP, A) JP-A-61-257183 (JP, A) JP-B-61-22977 (JP, B1) US Patent 3,892,846 (US, A) US Patent 3920015 (US, A) Supervised by Maruo Bunji et al. Handbook, Japan, Asakura Shoten Co., Ltd., March 1, 1983, first edition, second edition, p. 583 (58) Field surveyed (Int.Cl. ⁷ , DB name) A61L 9/01 A01K 1/03 A61F 13/15 A61F 13/49 WPI / L (QUESTEL)

Claims (2)

(57) [Claims] 1. A member for preventing malodor generation, comprising a silver thiosulfato complex as an inhibitor of urease or uricase enzyme. 2. Inhibitors of the enzyme, according to claim 1 Symbol placement malodor prevention member, characterized in that it is supported on silica gel.