JPH0213064B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a deodorizing quilted fabric, specifically a deodorizing quilted fabric suitable for use as bedding or thermal wear for people who have difficulty managing their own bowel movements, such as physically disabled people, bedridden patients, and bedwetting patients. It is related to. [Prior Art] Bedclothes and thermal clothing used by people who have difficulty self-controlling their toilets retain urine odor over time, causing discomfort to room-mates and visitors. Methods for eliminating such odors include, for example, masking methods using aromatic substances or bedding lined with activated carbon as seen in Japanese Utility Model Application Publication No. 57-81667. [Problems to be solved by the invention] 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, Masking methods have little effect on the emitted odor, and cannot relieve the discomfort of room mates and caregivers. Additionally, using a futon lined with activated carbon as described above can remove odors to a certain extent, but it inevitably reduces the cushioning properties and heat retention properties, impairing its function as bedding and thermal clothing, so it is not commonly used. has not yet been reached. 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 alienating patients by making visitors and nurses feel uncomfortable, and causes social harm in that 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 has at least a portion of the filling containing fibers carrying 1% by weight or more of metal phthalocyanine/polycarboxylic acid and 0.1% by weight or more of metal ions. It is composed of supported fibers. The metal phthalocyanine polycarboxylic acid, which is a deodorizing component, has the following formula, for example: metal phthalocyanine polycarboxylic acid
polycarboxylic acid or Metal phthalocyanine octacarboxylic acid with the following formula is used. Two or more types may be used simultaneously.
In each of the above formulas, M is, for example, Fe, Co, Mn,
Metals such as Ti, V, Ni, Cu, Zn, Mo, and W are listed. 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 supported is 1% by weight or more. 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, and the sustainability of the deodorizing activity will also be 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 preferably transition metal ions, such as copper, iron, cobalt, and nickel, while calcium, barium, and magnesium are preferable as metal ions other than transition metals. The metal ions to be supported may be used alone or in combination of two or more. It is desirable that the amount of metal ions supported be as large as possible, but from the viewpoint of economic efficiency and the strength and shape retention of the supported fibers.
Approximately 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 polymeric metal complex is formed of 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 the metal phthalocyanine/polycarboxylic acid-supported fibers and metal ion-supported fibers include regenerated cellulose fibers, hygroscopic synthetic fibers, porous fibers, and porous hollow fibers. 500% regenerated cellulose fiber is preferred. [Function] 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. Becomes odorless. That is, the metal M coordinated to the metal phthalocyanine polycarboxylic acid serves as 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−SH＋2OH ⁻ →2R−S ⁻ +2H ₂ O …(1) 2R−S ⁻ +2H ₂ O＋O ₂ →R−S−S−R+H ₂ O ₂ +2OH ⁻ …(2) Produced by the reaction of formula (1) The thiolate anion coordinates with oxygen to polyphyllin and polyphyllazine to form an active species that is a ternary complex. The thiolate anion coordinated to this active species is dimerized into a disulfide shown in formula (2) via a thiyl radical, and is incorporated into the fiber, making it 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 perform oxygen oxidation reactions. Examples of oxidation reactions of odor-like substances by oxidizing enzymes include those shown in the following table.

〔Example〕

Example 1 A rayon staple with a primary swelling degree of approximately 240% and a length of 31 mm is immersed in an aqueous solution of iron phthalocyanine/polycarboxylic acid (aqueous solution concentration 3 g/, PH 12), then dehydrated and dried to form iron phthalocyanine/polycarboxylic acid of approx. A fiber carrying 2% by weight (hereinafter referred to as fiber A) was obtained. The rayon staple was immersed in an aqueous copper acetate solution (concentration: 5 g/min) and then dehydrated and dried to obtain fibers (hereinafter referred to as B fibers) carrying about 2% by weight of copper acetate. A mixture of 35% A fiber, 35% B fiber, and 30% commercially available crimped polyester fiber (fiber length 31 mm) with a basis weight of approximately 400 g/m ²
Make it into a cow web. As shown in FIG. 1, the web was made into a quilted fabric 4 by using batting 1 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/m ² is made from the A fibers, B fibers, and polyester fibers described in Example 1, and made into quilting fabric in the same manner as in Example 1. A gown-shaped thermal garment was sewn using the quilted fabric. 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 mixed with A fiber and B fiber in Example 1 was arranged in the upper and lower layers, and polyester crimped fiber 6 was arranged in the middle layer ^. The web was used as batting, covered with breathable outer materials 2 and 3, and stitches 8 were added to make quilted 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, the insole, of course,
It was confirmed that almost no odor remained in the futon, and urine odor was effectively removed. Example 4 Rayon staples were dipped in cobalt chloride (aqueous solution concentration 10 g/) and then dehydrated and dried to produce fibers (hereinafter referred to as C
(called fiber). 65% of the A fibers obtained in Example 1 above and 35% of the C fibers were mixed to form a web having a basis weight of about 400 g/m ² . Example 1 on this web
Quilting fabric 4 (see Figure 1)
Build and evaluate the same. A sufficient deodorizing effect was obtained. Example 5 Ferrous acetate (aqueous solution concentration) on rayon staple
After soaking in 20g/), dehydrating and drying the acetic acid No. 1
A fiber (hereinafter referred to as D fiber) carrying about 5% by weight of iron was obtained. Quilting fabric 4 was prepared in the same manner as in Example 1 using a web having a basis weight of approximately 300 g/m ² by mixing 85% of A fiber and 15% of this D fiber, and evaluated in the same manner. A sufficient deodorizing effect was obtained. [Effects of the Invention] As described above, the deodorizing quilting fabric according to the present invention includes fibers in which at least a portion of the filling carries 1% by weight or more of metal phthalocyanine/polycarboxylic acid and 0.1% by weight or more of metal ions. Since it is composed of fibers, 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 made of fiber, it has excellent cushioning and moisture retention properties, and since it is quilted, there is no movement of the filling, making it easy to sew futons and thermal clothing, as well as gowns and tanned clothing for medical patients. It can be widely used for outwear such as front and waist wraps.

[Brief explanation of drawings]

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. 1... Filling, 2, 3... Outer material, 4... Quilting fabric, 5... Mixed cotton, 6... Intermediate layer fiber, 8
……stitch.

Claims (1)

[Scope of Claims] 1. At least a portion 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 featuring: 2. The deodorant quilting 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 deodorant quilting fabric according to claim 1, wherein the metal ion is a copper ion.