JP2589096Y2 - Deodorant and anti-mite fabric - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorant and anti-mite fabric.

[0002]

2. Description of the Related Art In recent years, diseases such as allergic asthma and rhinitis caused by various pests have become a serious problem due to changes in lifestyle. In particular, ticks that are likely to occur on futons and rugs are said to be the culprit. Eighty percent of pediatric asthma patients are thought to be caused by Dermatophagoides farinae, and the importance of extermination of ticks and ticks that cause discomfort from numerous outbreaks has been shown. Proposed.

For example, JP-A-3-59178, JP-A-3-161571 and the like disclose techniques for preventing mites from attracting mites by imparting a drug having a high repellent effect to futon cotton or fabric. . However, the use of such repellents causes problems such as a considerable effect on the human body due to their toxicity, a shortage of washing durability, and a remarkable reduction of the mites repelling effect after washing.

Japanese Unexamined Patent Publications Nos. 3-279473 and 3-40850 disclose a technique in which a cloth, through which mites cannot pass, is used for a side of a futon or the like. However, application of such a fabric having an extremely small fiber gap may cause discomfort during use due to insufficient air permeability and moisture permeability, and may cause unpleasant odors such as sweat and body odor.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a fabric having both deodorizing performance and anti-mite properties.

[0006]

Means for Solving the Problems To solve the above problems, the present invention has the following configuration. That is, a fabric made of polyamide deodorant fibers, a carboxyl group content in the fabric 5 × 10 ^-5 eq / g fabric or more,該Ka
At least a part of the ruboxyl group is H ⁺ , Cu ²⁺ and Z
It is substituted with at least one cation n ^2+, or
The air permeability of the fabric is ² cc / cm ² · sec or more , and
A deodorant-preventive tick fabric characterized by having a gap between yarns constituting the fabric of 0.1 mm or less.

The fabric referred to in the present invention is a fabric made of polyamide deodorant fiber.
It includes a nonwoven fabric and the like. Further, a cloth made of only polyamide deodorant fiber may be used, a cross-woven fabric using polyamide deodorant fiber for a part of warp or weft, a cross-knitted fabric using polyamide deodorant fiber for a part of knitting yarn, polyamide deodorant. A nonwoven fabric in which odor fibers are partially mixed may be used.

[0008] The form of the polyamide deodorant fiber as the main component of the fabric may be either long fiber or short fiber, and in the case of long fiber, either processed yarn or raw yarn. Also,
Mixed yarns or long and short composite yarns partially containing these polyamide fibers may be used.

The polyamide deodorant fiber used as a main component in the fabric of the present invention has a carboxyl group content of 5 × 10 ⁻⁵ equivalent / g from the viewpoint of improving the deodorizing performance of the entire fabric.
Polyamide fibers having fibers or more are preferred.

In the present invention, the polyamide is a polymer having a polyamide-based polymer represented by nylon 6 or nylon 66 as a basic skeleton.

In the present invention, the amount of carboxyl groups in the fabric is set to 5 × 10 ⁻⁵ equivalent / g or more. 5
If the content is less than × 10 ⁻⁵ equivalent / g, the fabric cannot exhibit sufficient deodorizing performance as a whole. In addition,
In general, it is difficult to increase the amount of carboxyl groups in the cloth to 4 × 10 ^-2 equivalents / g or more of the cloth without coarsely curing the feeling of the cloth.

In the present invention, examples of a method for incorporating a carboxyl group into the polyamide deodorant fiber include a method of kneading a compound having a carboxyl group and a method of copolymerizing a monomer having a carboxyl group with a polyamide polymer. . From the viewpoint of improving the washing durability, the latter method of copolymerization is preferable, and further, ease of processing,
Considering versatility, a method of graft copolymerizing an acrylic acid-based monomer or a methacrylic acid-based monomer having a carboxyl group is particularly preferable.

From the viewpoint of preventing a decrease in dyeing fastness and a rough hardening of the texture, the amount of carboxyl groups in the polyamide deodorant fiber is 4 × 10 ⁻³ equivalent, though it depends on the mixing ratio of the deodorant polyamide fiber in the fabric. / G fiber or less. However, depending on the use, these problems may not be regarded as important, and it is also possible to use a polyamide deodorant fiber or fabric having a carboxyl group content exceeding the above range.

In the present invention, in addition to the free carboxyl group and a carboxyl group, the counter ion of the carboxyl group anion as cation other than hydrogen ion, Cu ²⁺ Oyo
And those substituted with at least one of Zn ²⁺ . That is, in the present invention, the carboxy
At least part of the hydroxyl group is a small amount of H ⁺ , Cu ²⁺ and Zn ²⁺ .
It is important that at least one cation is substituted.
is there. Such cationic substituted polyamide deodorant fibers, there is a change in the deodorizing capability for statutory four major malodorous was a
For example, when the counter ion is replaced by a hydrogen ion, it is possible to provide an agent which exhibits an effect on deodorizing ammonia and trimethylamine, and at least a part of the counter ion is composed of Cu ²⁺ and when it is substituted with at least one cationic fine Z n ^2+, in addition to the deodorant of ammonia and trimethylamine, hydrogen sulfide, it is possible to provide what is effective in deodorizing methyl mercaptan
You. Of course, the hydrogen ion part of such counterions, Ru can also be the metal ions and the remainder, that is the carboxy
At least a portion of the sill group H ^+, of Cu ²⁺ and Zn ²⁺
Substituted with at least one cation, optionally,
A shall be able to appropriately modify adjust its function.

[0015]

The fabric of the present invention has an air permeability of ² cc / cm ² · se.
c or more. If the air flow rate is less than ² cc / cm ² · sec, there is a problem that insufficiency in use is caused due to insufficient air permeability and moisture permeability. In addition, the gap between yarns described later is 0.
Generally, the air flow rate is 20 cc / cm ² from the condition of 1 mm or less.
-It is difficult to make the fabric longer than sec.

The fabric of the present invention has a gap between the yarns of 0.1 mm.
The following is assumed. If the interfilament space exceeds 0.1 mm, larvae of Dermatophagoides farinae and claw mite may pass through. In addition, it is generally difficult to make the inter-filament space 0.01 mm or less from the relationship with the above-mentioned air permeability. Here, the space between yarns refers to the maximum value of the space formed between adjacent yarns constituting the fabric.

A sufficient effect can be expected by further adding a deodorant and / or a mitic repellent to the fabric of the present invention. However, in consideration of the case where the cover is used as an infant / children's brim cover, it is more preferable not to add these deodorants and / or mites repellents.

By using the fabric of the present invention as a futon side and using futon cotton having deodorizing performance and / or mite repellent effect, a futon excellent in deodorizing performance and / or anti-mite effect is obtained. Is preferred.

The method of evaluating the fabric of the present invention for tick resistance and deodorization will be described below. ＜ <Air permeability of cloth> It was measured by the Frazier method among JIS L 1096 general textile test methods.

<Gap between yarns of cloth> The cloth was observed with a scanning electron microscope at a magnification of 100 times, and the maximum value of the gap between yarns constituting the cloth was measured.

<Mite-preventing effect> Powder feed during mite propagation (Clea Japan Co., Ltd. CE-2)
1 g is spread evenly on a Petri dish with a diameter of 200 mm.
Powder feed without mite on this (15% moisture)
0.5 g is wrapped in 1 g of polyester futon cotton, and a simulated futon in which four sides of a sample fabric are adhered with double-sided tape is put on the cotton. Next, room temperature 25 ° C ± 2 ° C, humidity 70-8
After placing in an incubator adjusted to a range of 0% and leaving it for 40 hours, the whole dish is subjected to dry heat treatment at 120 ° C. for 2 hours to kill all mites. Next, the dead bodies of the mites attached to the mock futon were removed, and the number of dead mites remaining in the cotton and the feed was measured.

<Ammonia deodorizing property> 3 g of a fabric sample was placed in a 500 ml polyethylene container adjusted to have an initial ammonia concentration of 200 ppm, left for 20 minutes, and the residual ammonia concentration after 20 minutes was measured. Done.

<Hydrogen Sulfide Deodorizing Property> 3 g of a fabric sample was placed in a 500-ml polyethylene container adjusted to have an initial hydrogen sulfide concentration of 40 ppm, left for 20 minutes, and the residual hydrogen sulfide concentration after 20 minutes was measured. It was done by doing.

[0025]

The present invention will be described in more detail with reference to the following examples. (Examples 1 to 3) A woven fabric obtained by alternately arranging polyethylene terephthalate long fibers (hereinafter, high shrinkage PET fibers) and nylon 6 long fibers (hereinafter, NY fibers) obtained by copolymerizing isophthalic acid into a warp and a weft is used. After scouring, the fibers were treated in a relaxed state at 130 ° C. for 30 minutes to sufficiently shrink the highly shrinkable PET fibers. Next, a mixed monomer of acrylic acid and methacrylic acid (weight ratio of 3: 7) was graft-polymerized to NY fibers using ammonium persulfate as a polymerization catalyst, washed and dried (Example 1). The air permeability was 4.5 cc / cm ² · sec, and the yarn gap was 0.08 ± 0.01 mm. The amount of carboxyl groups introduced into the NY fibers was determined by neutralization titration to be 2.0%.
× 10 ⁻³ equivalent / g fiber, and the amount of carboxyl groups in the fabric was 1.0 × 10 ⁻³ equivalent / g fabric.

A part of the cloth subjected to the above treatment was collected, immersed in a 10 g / l aqueous solution of soda ash (Na ₂ CO ₃ ),
For 30 minutes, and after washing with water, treated at 80 ° C. for 30 minutes in an aqueous solution in which 15% zinc sulfate heptahydrate was added to the object to be treated, washed with water and dried (Example 2). The ventilation volume is 4.8cc
/ Cm ² · sec, and the yarn gap was 0.08 ± 0.01 mm.

Similarly, instead of zinc sulfate heptahydrate, copper sulfate 5
The same treatment as in Example 2 was conducted except that hydrate was used (Example 3). The air permeability was 4.6 cc / cm ² · sec, and the yarn gap was 0.08 ± 0.01 mm. Table 1 shows the evaluation results of these fabrics.

[0028]

[Table 1]

As is evident from Table 1, the fabric of the present invention prevents mites from invading and has a certain amount of ventilation, so that there is no stuffiness.

(Comparative Example 1) The same fabric as in Example 1 was tension set at 190 ° C to suppress shrinkage of the fabric, and then scoured at 80 ° C for 30 minutes.
The treatment was performed in the same manner as in Example 1. The ventilation rate is 10.1cc / cm ²
・ Sec, the yarn gap was 0.3 ± 0.02 mm. N
The amount of carboxyl groups introduced into the Y fiber is 2.2 × 10 ^-3
Equivalent / g fiber, and the amount of carboxyl groups in the fabric is 1.
It was 1 × 10 ⁻³ equivalent / g of fabric. The evaluation results of this fabric are also shown in Table 1. The yarn gap is large and ticks pass through the fabric gap.

Comparative Example 2 The same treatment as in Example 1 was carried out except that the amount of the mixed monomer was reduced and the amount of the carboxyl group introduced into the NY fiber was reduced to 6.0 × 10 ⁻⁵ equivalent / g polyamide. Done. The amount of carboxyl groups in the fabric was 3.0 × 10 ⁻⁵ eq / g fabric, the air permeability was 5.2 cc / cm ² · sec, and the yarn gap was 0.0
9 ± 0.01 mm. Table 1 shows the evaluation results of this cloth.
Are shown together. The deodorizing performance, particularly the deodorizing performance for ammonia was insufficient.

Comparative Example 3 The same fabric as that produced in Example 1 was subjected to scouring and relaxing without graft polymerization. The amount of carboxyl groups in the fabric is substantially traces, and the air permeability is 5.
1cc / cm ² · sec, yarn gap 0.09 ± 0.01mm
Met. The evaluation results of this fabric are also shown in Table 1. It had no deodorizing performance at all.

(Comparative Example 4) The same fabric prepared and treated in Example 1
The fabric was flattened by calendering at ℃. The amount of carboxyl groups in the fabric is 1.0 × 10 ⁻³ equivalent / g fabric, the air permeability is 1.5 cc / cm ² · sec, and the yarn gap is 0.02 ±
It was 0.02 mm. The evaluation results of this fabric are also shown in Table 1. Although the deodorizing performance was sufficient, there was a possibility that stuffiness might occur due to low air permeability.

[0034]

[Effect of the invention] It is non-toxic and has no effect on the human body at all, has sufficient washing durability, and has excellent breathability and moisture permeability, is comfortable and efficiently removes unpleasant odors such as sweat and body odor. A fabric capable of deodorizing and having both deodorizing performance and anti-mite properties can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of an example in which a fabric of the present invention is formed of a woven fabric.

[Explanation of symbols]

 1: deodorant and anti-mite fabric 2: polyamide deodorant fiber 3: polyamide fiber or fiber other than polyamide 4: void between yarns

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-142561 (JP, A) JP-A-3-279473 (JP, A) JP-A-3-106395 (JP, U) 19102 (JP, B1) (58) Fields investigated (Int. Cl. ⁶ , DB name) D06M 11/00-14/36

Claims (3)

(57) [Scope of request for utility model registration] 1. A cloth comprising polyamide deodorant fiber, wherein the amount of carboxyl groups in the cloth is 5 × 10 ⁻⁵ equivalent / g.
In fabric above, and at least a portion of the carboxyl group
Is at least one cation of H ⁺ , Cu ²⁺ and Zn ²⁺
And the air permeability of the fabric is 2 cc / cm.
A deodorant-prevention and / or mite cloth characterized by having a gap of not less than ² · sec and a gap between yarns constituting the cloth of 0.1 mm or less. 2. The deodorizing and anti-mite fabric according to claim 1, wherein said polyamide deodorizing fiber is a polyamide fiber having a carboxyl group of 5 × 10 ⁻⁵ equivalent / g fiber or more. Wherein the carboxyl groups of the polyamide deodorant in fiber, 4 × 10 ^-3 extinguishing Nioibo mite fabric according to any one of claims 1-2, wherein the equivalent / g fibers or less.