JP2002069837A - Deodorizing cloth - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cloth having a deodorizing performance against both acidic and basic smells, and having washing resistance of the deodorizing performance. SOLUTION: This deodorizing cloth is obtained by fixing at least an inorganic compound with the cloth through a binder resin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a fabric having deodorizing performance.

[0002]

2. Description of the Related Art Various methods have been considered as a method for deodorizing fiber fabrics. The problem common to these fiber fabrics is that deodorant fabrics that are effective against basic odors such as ammonia and trimethylamine are sulfurized. Deodorizing performance against acidic odors such as hydrogen and lower fatty acids is low, and conversely, fiber fabrics effective against acidic odors have only low deodorizing performance against basic odor.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fiber cloth which exhibits deodorizing performance against both acidic odor and basic odor, and further has washing durability of deodorizing performance. It is in.

[0004]

The present invention provides a deodorizing cloth comprising at least an inorganic compound immobilized on a fiber cloth via a binder resin.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The fiber fabric in the present invention is not particularly limited, and includes all fiber fabric products such as general woven fabric, knitted fabric, and nonwoven fabric. Examples of the types of fibers constituting the fiber fabric include natural fibers such as cotton and wool, synthetic fibers such as polyester fibers and nylon fibers, regenerated fibers such as rayon, and semi-synthetic fibers such as triacetate fibers.

In the present invention, the term "inorganic compound" refers to an inorganic compound having a deodorizing performance, and more specifically, an amphoteric metal compound, a basic metal compound, and an acidic metal compound. From the viewpoint of safety to human body and coloring,
Oxides or hydroxides of zinc, aluminum and tin are preferably used as amphoteric metal compounds, oxides or hydroxides of magnesium are preferably used as basic metal compounds, and titanium and silicon are used as acidic metal oxides. Is used.

From the viewpoint of improving the deodorizing performance of the obtained deodorant cloth, the particle diameter of the inorganic compound is preferably 30 μm or less, more preferably 5 μm or less.
Further, the inorganic compound is more preferably in a microporous state. In order to exhibit deodorizing performance on both acidic odor and basic odor, it is preferable to use a mixture of two or more of the above inorganic compounds, and to use a mixture of an amphoteric metal compound and an acidic metal compound. Is more preferred. In particular,
By mixing and using an amphoteric metal compound and an acidic metal compound at a weight ratio in the range of 1: 9 to 9: 1, a fabric excellent in deodorizing performance can be obtained.

[0008] In the present invention, the binder resin for fixing the inorganic compound to the fiber cloth is not particularly limited, and may be a urethane resin, an acrylic resin, a silicone resin, a polyamide resin, a polyester resin, a urea resin, or the like. Various resins can be used. In general, it is preferable to use a urethane resin or an acrylic resin from the viewpoint of feeling and washing durability of deodorizing performance.

[0009] In order to further improve the washing durability of the deodorant performance of the obtained deodorant fabric, various crosslinking agents can be added to the binder resin. As a crosslinking agent,
Isocyanate-based, melamine-based or epoxy-based ones can be preferably used. In the present invention, a processing method for immobilizing an inorganic compound on a fabric via a binder resin is not particularly limited, and a pad-
Various methods such as a dry method, a printing method, a coating method, and a spray method can be used.

The proportion of the inorganic compound added to the binder resin is preferably in the range of 1: 0.1 to 1:20 in terms of solid content. If the addition ratio is less than 1: 0.1, it becomes difficult to obtain deodorant performance. If the addition ratio exceeds 1:20, the washing durability of the deodorant performance may be insufficient. The total adhesion amount of the binder resin and the inorganic compound to the fiber cloth is desirably 0.1 to 20% by weight in terms of solid content. If the adhesion amount is less than 0.1% by weight, it becomes difficult to obtain deodorant performance. On the other hand, if the amount exceeds 20% by weight, the feeling of the cloth becomes coarse and hard, which is not preferable.

In producing the deodorant fabric of the present invention,
If necessary, before, during or after applying the inorganic compound, antistatic processing, water absorption processing, softening processing, antibacterial processing,
Various processes such as a water-repellent process may be performed.

[0012]

The present invention will be further described below with reference to examples and comparative examples. “Parts” in the examples indicates “parts by weight”. In addition, the deodorization rate measurement method, the washing method, etc. in the examples were performed by the following methods. (1) The deodorization rate was measured in a 500 ml plastic container.
After suspending a 0 cm ² fabric test piece, generating an odor gas in a plastic container in a closed state, leaving it at room temperature for 30 minutes, measuring the concentration of the odor gas in the plastic container with a gas detector tube, and performing a blank test. Was calculated from the following formula.

Deodorization rate (%) = [(Gas concentration in blank test−
Gas concentration of a plastic container with fabric) / Gas concentration in blank test]
× 100 As a bad odor gas, a basic odor of ammonia was used in an amount of 200 ppm (gas concentration in a blank test), and as an acidic odor, hydrogen sulfide was used in an amount of 20 ppm (gas concentration in a blank test). .

(2) The washing process is performed according to JIS L0217.
Performed according to the 103 method. (3) The amount of adhesion (% by weight) was calculated by the following equation. Amount (weight%) = [(weight of processed fabric−weight of unprocessed fabric) / weight of unprocessed fabric] × 100 Example 1, Comparative Example 1 20 parts of microporous zinc oxide powder, 10 parts 68 parts of water is added to the part of microporous titanium dioxide powder,
0.5 parts of a tamol-based dispersant and 1.5 parts of carboxymethylcellulose are added, mixed by a ball mill for 3 hours, and zinc oxide having a solid content of 30% (average particle diameter 2 μm).
+ A titanium dioxide (average particle size: 2 μm) dispersion A was obtained.
Next, 2 parts of Implanter DLS (urethane resin, solid content 40%) manufactured by Bayer and 88 parts of water were added to 10 parts of the dispersion A to prepare a working fluid.

The polyester fabric is immersed in the processing liquid, squeezed with a mangle, dried using a hot air oven, and dried at 170 ° C.
For 1 minute to obtain a deodorant cloth having a binder resin-to-inorganic compound weight ratio of 1: 3.8 and an adhesion amount of binder resin + inorganic compound of 2.7% by weight. As Comparative Example 1, a polyester fabric was used on Nicepol F manufactured by Nikka Chemical Co., Ltd.
Using a 1% aqueous solution of E26 (antistatic agent) as a processing liquid, processing was performed in the same processing method as in Example 1 to obtain a comparative processed cloth.

Table 1 shows the results of the evaluation of the deodorizing performance of each of the processed fabrics.

[0017]

[Table 1]

From the results in Table 1, the work cloth of Example 1 is
It can be seen that both before and after washing, they exhibit deodorizing performance against both acidic odor and basic odor. On the other hand, the processed fabric of Comparative Example 1 does not have sufficient deodorizing performance. Example 2, Comparative Example 2 15 parts of microporous aluminum hydroxide powder, 1 part
Using 5 parts of microporous titanium hydroxide powder, aluminum hydroxide having a solid content of 30% (average particle diameter of 2 μm) + titanium hydroxide (average particle diameter of 2 μm) in the same manner as in Example 1.
m) A dispersion B was obtained. Next, 20 parts of Newcoat S2170 (acrylic resin, solid content 50%) manufactured by Shin-Nakamura Chemical Co., Ltd. were added to 80 parts of the dispersion B to prepare a working liquid.

1 for polypropylene spunbond nonwoven fabric
The working fluid was transferred using a gravure machine using a 00 mesh roll, and heat treatment was performed at 100 ° C. for 1 minute. The weight ratio of the binder resin to the inorganic compound was 1: 2.4, and the adhesion of the binder resin and the inorganic compound was performed. An amount of 6.2% by weight of the deodorant fabric was obtained. As Comparative Example 2, 100 parts of Newcoat S2170 was used as a processing liquid and processed in the same processing method as in Example 2 to obtain a comparative processed cloth.

Table 2 shows the results of the evaluation of the deodorizing performance of each of the processed fabrics.

[0021]

[Table 2]

From the results in Table 2, it can be seen that the processed fabric of Example 2 exhibits deodorizing performance both before and after washing. On the other hand, the processed fabric of Comparative Example 2 does not have sufficient deodorizing performance. Example 3, Comparative Example 3 15 parts of microporous zinc oxide powder, 5 parts of microporous silicon dioxide powder, 70 parts of dimethylformamide and 10 parts of Chrisbon 8006 manufactured by Dainippon Ink and Chemicals, Inc. Urethane resin, solid content 30%)
The mixture was mixed by a ball mill for 3 hours, and zinc oxide having a solid content of 23% (average particle diameter 1 μm) + silicon dioxide (average particle diameter 1
μm) Dispersion C was obtained. Next, 40 parts of Crisbon 8006 and 3 parts of Vernock D500 (isocyanate-based crosslinking agent) manufactured by Dainippon Ink and Chemicals, Inc. were added to 60 parts of the dispersion C.
Was added to prepare a working fluid.

After coating the processing liquid on the nylon fabric by the floating knife method, the urethane resin is coagulated and desolventized in water, dried, and then heat-treated at 160 ° C. for 1 minute to obtain a weight of the binder resin and the inorganic compound. A deodorant fabric having a ratio of 1: 0.87 and an adhesion amount of binder resin + inorganic compound of 10% by weight was obtained. As Comparative Example 3, 4
A comparatively processed cloth was obtained by processing the same processing method as in Example 3 using 0 parts of crisbon 8006 + 60 parts of dimethylformamide as the processing liquid.

Table 3 shows the results of the evaluation of the deodorizing performance of each of the processed fabrics.

[0025]

[Table 3]

From the results in Table 3, it can be seen that the processed fabric of Example 3 exhibits deodorizing performance both before and after washing. On the other hand, the processed fabric of Comparative Example 3 does not have sufficient deodorizing performance.

[0027]

According to the present invention, a deodorant fabric is provided. This deodorant fabric has washing durability, and exhibits a deodorizing effect on both acidic odor and basic odor, whereby various odors generated in a living environment can be used in all situations. Desirable deodorant effect is expected.

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Claims (5)

[Claims] 1. A deodorant cloth comprising at least an inorganic compound fixed to a fiber cloth via a binder resin. 2. The fabric according to claim 1, wherein the inorganic compound is an amphoteric metal compound, a basic metal compound and / or an acidic metal compound. 3. The fabric according to claim 2, wherein the amphoteric metal compound is an oxide or hydroxide of zinc, aluminum or tin. 4. The fabric according to claim 2, wherein the basic metal compound is a magnesium oxide or hydroxide. 5. The fabric according to claim 2, wherein the acidic metal compound is an oxide or hydroxide of titanium or silicon.