Odor eliminating cloth and process for producing the same

The present invention relates to an odor eliminating cloth capable of effectively eliminating any types of odors of basic gases (e.g., ammonia gases, trimethylamine gases), acidic gases (e.g., acetic acid gases), neutral gases (e.g., acetaldehyde gases, formaldehyde gases), and sulphur series gases (e.g., hydrogen sulfide gases, mercaptan series gases) contained, for example, in the air of a room. It also related to a manufacturing method of the odor eliminating cloth.

A newly built recent housing is extremely improved in air-tightness, and it is said to require a time several times longer than that required for a conventional housing to replace the room air. Such high air-tightness causes easy trapping of odors in a room, resulting in discomfort. Thus, problems on living odors have become a big concern for modern people. Furthermore, a request for eliminating various odors in a room space of, e.g., an automobile, a train and an airplane has been increased.

In order to eliminate living life odors in a room, a cloth member, such as, e.g., a curtain and a carpet having an odor eliminating function has been proposed (see Patent Documents 1 to 3).

Patent Document 1 discloses an odor eliminating carpet in which a hydrazide compound, such as, e.g., adipic acid dihydrazide, is applied to and fixed to a pile portion or a base cloth. Patent Document 2 discloses a fibrous structure, such as, e.g., a curtain, a carpet and a vehicle interior material in which a composite oxide containing titanium and silicon and a hydrazide compound are adhered to the fiber surface with a resin. Patent Document 3 discloses an odor eliminating carpet in which hydrazine derivative and photocatalyst are adhered to the surface fiber layer with a resin and coconut activated carbon and hydrazine derivative are mixed in a backing resin layer.

In the meantime, as living odors in a room, there are various types of odors of gases, such as, e.g., basic gases (e.g., ammonia gas, trimethylamine gases), acidic gases (e.g., acetic acid gases), neutral gases (e.g., acetaldehyde gases, formaldehyde gases), sulphur series gases (e.g., hydrogen sulfide gases, mercaptan series gases). None of the aforementioned conventional odor eliminating clothes could effectively eliminate all of four types of gases (basic gases, acidic gases, neutral gases, and sulphur series gases).

The present invention was made in view of the aforementioned technical background, and aims to provide an odor eliminating cloth capable of effectively eliminating any types of odors of, for example, basic gases, acidic gases, neutral gases, sulphur series gases contained in the air of a room, and to provide a manufacturing method thereof.

In order to attain the aforementioned objects, the present invention provides the following means.

[1] An odor eliminating cloth, comprising:

an odor eliminating composition containing a porous inorganic substance, a metallic oxide, and an inorganic silicon compound carrying a polyamine compound;

a binder resin; and

a cloth,

wherein the odor eliminating composition is bonded to at least a part of the cloth by means of the binder resin.

[2] The odor eliminating cloth as recited in the aforementioned Item 1, wherein the odor eliminating composition further contains hydrazine derivative.

[3] The odor eliminating cloth as recited in the aforementioned Item 1 or 2, wherein the odor eliminating composition further contains metal hydroxide.

[4] The odor eliminating cloth as recited in any one of the aforementioned Items 1 to 3, wherein an average grain diameter of each odor eliminating component constituting the odor eliminating composition falls within a range of 10 nm to 100 μm.