JPS626978A - Deodorizing quilting cloth - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides deodorizing quilting fabric, specifically for use in handicapped persons,
The present invention relates to a deodorizing quilted fabric suitable as bedding or heat-insulating wear for people who have difficulty self-managing their bowels, such as bedridden patients and bedwetting patients.

[Conventional technology]

Bedclothes and heat-insulating lids used by people who have difficulty self-managing their bowels retain urine odor over time, causing discomfort to room-mates and visitors.

As a method for eliminating such odors, for example, a masking method using an aromatic substance or bedding lined with activated carbon as seen in Japanese Utility Model Application No. 57-81667 is used.

[Problem that the invention seeks to solve]

However, for example, in a patient's bedroom where the defecation is handled by a nurse, the odor of excrement permeates into the bedding and clothing during long-term treatment, and there is no masking method to prevent the odor emitted from the bedding and clothing. It has little effect and does not relieve the discomfort of room mates and caregivers. Additionally, using a futon lined with activated carbon like the one mentioned above can remove odors to some extent, but it inevitably lowers the cushioning properties and heat retention, which impairs its function as bedding and a heat-insulating lid, so it is not commonly used. has not yet been achieved.

As a result, the bedrooms of long-term care patients are not only full of odors, even more so than the patients are aware of, but the odor also permeates the patients themselves. This becomes a major factor in making visitors and caregivers feel uncomfortable and alienating the patients, which leads to social harm in that the patients gradually become closed-minded and their personalities become more sinister.

The present invention provides a quilted fabric that is suitable for the above-mentioned bedding and thermal wear for medical patients, has an odor eliminating function, and is capable of maintaining its deodorizing effect for a long period of time.

[Means for Solving the Problems] The deodorizing quilting fabric of the present invention is characterized in that at least a portion of the filling contains m-fibers carrying 1% by weight or more of metal phthalocyanine/polycarboxylic acid and 0.1% of metal ions. It is composed of fibers supported in an amount of at least % by weight.

As the metal phthalocyanine polycarboxylic acid which is a deodorizing component, for example, metal phthalocyanine tetracarboxylic acid of the following formula or metal phthalocyanine octacarboxylic acid of the following formula is used. Two or more types may be used simultaneously.

In each of the above formulas, for example, Fe, Go, Mn, T
Examples include metals such as i, V, old, Cu, Zn, Mo, and W. Among these metals, iron and cobalt are preferred from the viewpoint of deodorizing effect. Further, the metal phthalocyanine/polycarboxylic acid is supported by physically contacting the fibers or by being chemically bonded to the fibers.

The required amount of metal phthalocyanine polycarboxylic acid to be supported is:
1% by weight or more is required. The larger the supported amount, the more deodorizing activity will be obtained; if the supported amount is smaller, the desired level of deodorizing activity will not be obtained.
Furthermore, the durability of the deodorizing activity is also poor. However, there is a limit to the amount of metal phthalocyanine polycarboxylic acid that can be supported on the fibers, and the preferred amount is in the range of 1 to 20% by weight.

The metal ions supported on the fibers are transition metal ions,
For example, copper, iron, cobalt, and nickel are preferable, and among metal ions other than transition metals, calcium, barium, and magnesium are preferable. The metal ions to be supported may be used alone or in combination of two or more. Although it is desirable that the amount of metal ions supported be as large as possible, from the viewpoint of economy and the strength and shape retention of the supported fibers, about 0.1 to 20% by weight is appropriate. The above-mentioned metal ions are supported on the fibers by direct physical contact with them, or are supported by being chemically bonded to the polymers of the fibers. In the latter example, a polymer metal complex is formed by an intramolecular chelate complex of polyvinyl alcohol and copper ions, a complex of polyvinylamine and iron ions, etc. Further, the compound containing the metal ion may be carried by physically contacting the fiber, or may be carried by being chemically bonded to the polymer of the fiber.

Examples of fibers carrying metal phthalocyanine φ polycarboxylic acid and fibers carrying metal ions include regenerated cellulose fibers, hygroscopic synthetic fibers, porous fibers, and porous hollow fibers.
50-500% regenerated cellulose fiber is preferred.

[Effect]

The metal phthalocyanine/polycarboxylic acid supported on the batting fibers of the quilting fabric of the present invention has an oxidation-reduction ability, and its action oxidizes and decomposes malodorous substances such as hydrogen sulfide and mercaptan, making them odorless. . That is, the metal M coordinated to the metal phthalocyanine polycarboxylic acid becomes an active center, and the oxidation reaction proceeds.

For example, taking the oxidation of mercaptan as an example, the oxidation is shown by the following chemical reaction formula.

2R-9R+ 20H-→2R-9-+2H20,,,
, , , , (1) 2R-3-+ 2H20+ 02→
R-S-9-R+ H2O2+ 200-0(2)(1
The thiolate anion produced in the reaction of formula ) coordinates with oxygen to porphyrin and porphyrazine to become an active species that is a ternary complex. The thiolate anion coordinated to this active species is trimerized into a disulfide shown by the formula (2) via a thiyl radical, and is incorporated into the fiber to become odorless.

This reaction is very similar to in vivo enzymatic oxidation reactions. All oxidation reactions by enzymes are aerobic reactions. In other words, most of them undergo oxygen oxidation reactions. Examples of oxidation reactions of odor-like substances by oxidizing enzymes include those shown in the following table.

Enzyme reaction system Reaction example H2SO3+ H2O+ 02→H2SO4+ H20
2 Oxygenase type Double bond cleavage Cleavage gate of indole nucleus As mentioned above, oxidation (deodorization) of mercaptan compounds, sulfonation (water solubilization, deodorization), quinonation (deodorization) of phenolic compounds, indole nucleus 2 Cleavage of heavy bonds (deodorization) takes place. The oxidation reaction of metal phthalocyanine and polycarboxylic acid proceeds in the presence of a small amount of moisture at room temperature, and the reaction rate is fast and the reaction rate is high.

Odor substances made of ammonia or various amine compounds can be removed by the oxidative decomposition action of metal phthalocyanine/polycarboxylic acid, but furthermore, metal ions form metal ammine complexes with ammonia and various amines in the presence of water, making them odorless. do. For example, the reaction in which ammonia is adsorbed to copper ions and forms a complex is a reaction in which a complex is exchanged between the water molecules of the hydric copper ions and the floating ammonia molecules, as shown by the following formula.

[Cu(OH2)] 42 ・ + 4NH3+
[Cu(NH3)412+ + 4H20 This complex exchange reaction has a fast reaction rate and a very high reaction rate, and the formed metal ammine complex is also adsorbed very stably.

〔Example〕

Example 1. - A rayon staple with a blow swelling degree of approximately 24 oz and a length of 31 mm is immersed in an aqueous solution of iron phthalocyanine polycarboxylic acid (aqueous solution concentration 3 g/l, PH 12), and then dehydrated and dried to reduce the iron phthalocyanine polycarboxylic acid to approximately 2 A fiber (hereinafter referred to as A@fiber) with a weight percent support was obtained. Copper acetate aqueous solution (concentration 5g/
The fibers were dipped in water and then dehydrated and dried to obtain fibers (hereinafter referred to as Ba fibers) carrying about 2% by weight of copper acetate. A fiber lm
A web having a basis weight of approximately 400 g/m2 is made by mixing 35% B fiber and 30% commercially available crimped polyester M fiber (A separation 31 mm). As shown in Figure 1,
The web was made into a quilted fabric 4 by using batting l and covering it with breathable outer fabrics 2 and 3, and adding stitches 8. Then, this quilting fabric 4 is sewn to the size of the mattress and the size of the comforter. It was used as an overlay on the mattresses and inside the comforters of six patients who were isolated in separate rooms because they had difficulty managing their own toilets. As a result of continuous use for about 6 months, no strange odor was observed, confirming the deodorizing effect and its sustainability.

Example 2. A web with a basis weight of approximately 300 g/m2 is made from the A fibers, B fibers, and polyester fibers described in Example 1, and a quilted fabric is made in the same manner as in Example 1. The quilted fabric was used to create a gown-shaped thermal garment. When I interviewed patients wearing this heat-retaining clothing, they did not experience any unpleasant body odor like before, confirming the deodorizing effect of the quilted fabric of the present invention.

Example 3. As shown in Fig. 2, cotton 5, which is a mixture of A fiber and B fiber in Example 1, is arranged in the upper and lower layers, and polyester crimped fiber 6 is arranged in the middle layer, with a basis weight of 500 g/m.
The web of 2 is used as batting, and covered with a breathable outer material 2-3,
Add stitch 8 to make quilting fabric 4. This quilted fabric 4 was sewn to the size of a futon and used as an insole for a futon for children with nocturnal enuresis. After drying each time it got wet with urine water and using it repeatedly for 6 months, we found that not only the insole but also the futon had almost no odor, and it was confirmed that the urine odor was effectively removed. Ta.

Example 4. Rayon staples are immersed in cobalt chloride (aqueous solution concentration 10 g/41) and then dehydrated and dried to obtain fibers (hereinafter referred to as cam) carrying about 3% by weight of cobalt chloride. By mixing 65% of the A@ fiber obtained in Example 1 and 35% of this C fiber, the basis weight is approximately 400 g/m2.
web. Quilting fabric 4 (see Figure 1) is made from this web in the same manner as in Example 1 and evaluated in the same manner. A sufficient deodorizing effect was obtained.

Example 5. A rayon stable was immersed in ferrous acetate (aqueous solution concentration 20 g/Jl) and then dehydrated and dried to obtain fibers (hereinafter referred to as ferrous fibers) carrying about 5% by weight of ferrous acetate. Quilting fabric 4 was prepared in the same manner as in Example 1 using a web having a basis weight of approximately 300 g/m2 by mixing 85% of A fibers and 15% of this D fiber, and evaluated in the same manner. A sufficient deodorizing effect was obtained.

〔Effect of the invention〕

As described above, the deodorizing quilting fabric according to the present invention has fibers in which at least a portion of the filling carries 1% by weight or more of metal phthalocyanine/polycarboxylic acid and 0.0% of metal ions.
Since it is composed of fibers carrying 1% by weight or more, when the metal phthalocyanine/polycarboxylic acid and metal ions come into contact with odors such as urine or sweat, oxidation reactions and metal ammine complex formation reactions proceed. As a result, the deodorizing effect as described above is achieved, which is completely different from and superior to the deodorizing effect of activated carbon.

Furthermore, since the deodorizing material is fiber, it has excellent cushioning and heat retention properties, and since it is quilted, there is no movement of the filling, making it easy to form futons and heat retention. It can be widely used for outwear such as waistbands.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional perspective view of an embodiment of a quilted fabric to which the present invention is applied, and FIG. 2 is a same view of another embodiment. 113. Filling 2, 3, 1 Outer material 4...Quilting fabric 5...Mixed cotton 6...Middle layer fiber 8.
···stitch

Claims (1)

[Scope of Claims] 1. At least a part of the batting is composed of fibers carrying 1% by weight or more of metal phthalocyanine/polycarboxylic acid and fibers carrying 0.1% by weight or more of metal ions. A deodorizing quilted fabric that is characterized by: 2. The deodorizing quilted fabric according to claim 1, wherein the metal phthalocyanine polycarboxylic acid is iron phthalocyanine polycarboxylic acid. 3. The deodorizing quilted fabric according to claim 1, wherein the metal phthalocyanine polycarboxylic acid supported fibers are highly swellable regenerated cellulose fibers. 4. The deodorizing quilted fabric according to claim 1, wherein the metal ion is a copper ion.