JP2008274475A - Molded fiber processed material - Google Patents

Abstract

An object of the present invention is to provide a fiber processed product having antifungal properties and washing durability superior to conventional products.
A microcapsule comprising a controlled release capsule body 111 having micropores 110 and encapsulating an antifungal agent 14 made of an organic / existing chemical compound composite containing PHMB and diiodomethyl-p-tolylsulfone as main components. 11 is configured. And the said microcapsule 11 is made to adhere to the surface of the natural fiber (cotton) 10, and the anti-mold hand towel 1 is comprised.
[Selection] Figure 2

Description

  The present invention relates to a technique for improving the quality of processed textiles such as towels, hand towels, cloths, towels, and the like, and more particularly, to a technique that achieves both long-term maintenance of antifungal properties in towels and improvement of washing durability.

The hand towel (hand wet towel) is provided to customers who come to a restaurant or the like after appropriately moistening a rectangular cloth piece, which is a fiber processed product. The hand towel is generally wrapped or rolled in a wet state, individually wrapped as necessary, and stored for a predetermined period until use.
When the fiber is in a wet state, mold attached to the fiber from the atmosphere easily propagates. This problem is particularly noticeable for hand towels that are stored in a wet and warm state for a certain period of time, such as in winter. Hand towels with mold growth generate a foul odor and give customers an unpleasant impression when used, as well as sanitary problems. In general, hand towels are collected by specialists after use, and are used again after being subjected to decoloring (chlorine) treatment, washing treatment, shaping treatment, etc. in order. However, when mold grows, the fibers are eroded and deteriorated, and the washing durability is lowered. Therefore, there is an economic problem that the number of reuse is reduced.

  On the other hand, conventionally, measures are taken to prevent mold growth by attaching a fungicide to the fiber surface. Various types of inorganic and organic materials are used for the fungicide. Specifically, silver materials and quaternary ammonium salts (Patent Document 4) are used as inorganic materials, and PHMB (polyhexanide hydrochloride, polyhexamethylene biguanide) materials are used as organic material examples (Patent Document 1,). 2, 3).

Here, the PHMB-based material has higher performance than other anti-fungal agents, has many advantages such as excellent safety to the human body, and has relatively good adhesion of the anti-fungal agent to fibers.
JP-A-8-226077 JP 2003-286115 A JP-A-3-39310 JP 2006-149989 A Japanese Patent Laid-Open No. 2004-300638

However, the conventional mold-proof hand towel has the following problems.
Compared to the frequency of use and washing of commercially available processed fiber products, the hand towel industry generally repeats the product delivery and collection cycle after use in a relatively short period of time, and after collection, it is decolorized with relatively high strength (chlorine). ) Processing and washing processing are performed. In such a use environment, the fixing property between the fiber and the antifungal agent is not sufficient, and the antifungal agent may drop off in several cycles, and it is difficult to maintain sufficient antifungal property. Moreover, since the fungicide is exposed to a large amount of water or a chlorine solution during washing, there is a problem that it is excessively eluted. As described above, when PHMB is used as an antifungal agent, the degree of elution is lower than that of other antifungal agents, but it is still difficult to maintain the antifungal property over an ideal period.

The above-mentioned problem of mold-proofing hand towels is irrelevant when using disposable paper towels or the like. However, in consideration of recent environmental problems, recycling is also desired in the hand towel industry, and it is still a problem to be solved immediately. Moreover, even if it is a disposable hand towel, it is a common problem in that sufficient anti-fungal measures are desired until use.
Furthermore, since each problem similar to the above also exists for general anti-mold fiber processed products such as clothes and gloves other than hand towels, there is room to be solved.

  This invention is made | formed in view of the above subject, Comprising: It aims at providing the textile processed goods provided with the antifungal property and washing durability outstanding compared with the conventional product.

In order to solve the above-mentioned problems, the present invention comprises a microcapsule containing a fungicide in a microcapsule body having a plurality of micropores communicating with a hollow interior, the microcapsule being formed into a fiber. It was set as the mold-proof fiber processed material attached.
Here, as the antifungal agent, one containing one or more component compositions selected from PHMB, diiodomethyl-p-tolylsulfone, and methyl (benzimidazol-2-yl) carbamate can be used.

Moreover, PHMB can also be included in the microcapsule in a concentration range of 10 ppm or more and 50000 ppm or less as a component composition of the antifungal agent.
Furthermore, the microcapsules can be made of a water-insoluble material (for example, a silica material), and the fibers can be made of cotton.
The microcapsules can be attached to the fibers using a binder.

The binder is configured to include one or more component compositions selected from vinyl chloride, vinyl acetate, acrylic, sodium alginate, urethane, silicone, phenol, natural rubber resin, starches, sugars, and proteins. Can do.
The fiber processed product may be in the form of a towel.

In the antifungal fiber processed product of the present invention having the above-described configuration, the antifungal agent introduced into the microcapsule is released to the outside through the countless micropores of the microcapsule, and the antifungal property is exhibited. For this reason, the fungicide is less likely to scatter and volatilize around at once.
Therefore, the antifungal property is exhibited over a long period of time compared to the conventional case, and the growth of mold on the fiber can be prevented, so that malodor and discoloration of the fiber can be suppressed. Inhalation of mold fungi spores may cause damage to the lungs in the human body, but this problem can be expected to be reduced by effectively preventing mold growth in the above-described configuration.

Such various effects are particularly useful in hand towels that are stored in a wet state for a certain period of time before use. Specifically, it is considered to be very effective when the mold propagation environment is high, such as a hand towel stored in a humidified and warmed state.
Normally, hand towels that have become moldy before use are collected by a contractor and recycled or discarded, which may increase business costs and reduce credit. According to the present invention, such a hand towel problem can be drastically reduced, and a great effect can be expected in providing low-cost and stable quality.

Furthermore, since the present invention has a configuration in which microcapsules encapsulating a fungicide are adhered to the fiber surface, the washing durability is superior to the conventional configuration in which the fungicide is directly adhered to the fiber surface. That is, when the fiber processed product is wetted, even if it is subjected to decolorization (chlorine) treatment and washing treatment with a certain degree of strength after use, the fungicide is not lost early.
Here, by using low-elution agents such as PHMB and diiodomethyl-p-tolylsulfone as the anti-fungal agent, it is possible to achieve both higher anti-fungal properties and early elution reduction. Thereby, excellent antifungal properties can be expected over the normal life of the hand towel body (generally, the number of uses of 30 to 40 cycles).

Note that if the microcapsules are made of a highly water-insoluble material such as silica material, the washing durability of the capsule body can be improved, which is more effective for the long-term retention of the above-mentioned mold resistance.
In addition, since the silica material is excellent in adhesion to natural fibers, if the microcapsules are made of the material, the microcapsules can be firmly fixed to the fibers, and improvement in washing durability can be expected.

  When the capsule is attached to the fiber with a binder, the binder material is selected from vinyl chloride, vinyl acetate, acrylic, sodium alginate, urethane, silicone, phenol, natural rubber resin, starches, sugars, proteins). In addition, when a material containing one or more component compositions is used, the microcapsules can adhere strongly to natural fibers (such as cotton) regardless of the affinity between the fibers and the capsules, thereby enhancing the durability of washing. It is advantageous.

  In addition, the technique itself using a microcapsule in order to add a fragrance | flavor etc. with respect to a fiber is well-known (for example, patent document 5). However, the present invention has been found by diligently examining the components of the antifungal agent optimal for use in a towel, and has a specific effect in terms of achieving both improved washing durability. It has a clear difference from the prior art.

Embodiments of the present invention will be described below, but the present invention is naturally not limited to these forms, and can be appropriately modified and implemented without departing from the technical scope of the present invention.
(Structure of mold resistant hand towel 1)
FIG. 1 is a schematic external view showing an antifungal hand towel 1 according to Embodiment 1 (hereinafter simply referred to as “wet towel 1”) as an example of the antifungal fiber processed product of the present invention. FIG. 2 is a partially enlarged view of the towel 1, and FIG. 3 is a partially enlarged view of the fibers of the towel 1.

The hand towel 1 shown in FIG. 1 is formed by rounding and shaping a rectangular cloth piece having a side of about 40 cm. The hand towel body 1X is mainly formed by knitting natural fibers (cotton) 10 (see FIG. 2). It is comprised by moistening moderately.
The fiber 10 that can be used for the towel body 1X is not limited to cotton, but may be other natural fibers. Furthermore, recycled fibers such as viscose and rayon, semi-synthetic fibers such as acetate and rayon, and synthetic fibers such as polyester, nylon, and acrylic may be used. Etc., it may be used as a composite fiber. Disposable hand towel fibers, such as paper towel materials, can also be used. In this case, although washing durability is not requested | required, the effect similar to the case where another fiber is used can be anticipated about the anti-mold performance with time.

It is preferable to select an optimal combination of the fiber materials in consideration of the affinity with the microcapsule material (adhesiveness) described later.
(Configuration of microcapsule 11)
As shown in FIG. 2, microcapsules 11 having a diameter of about 10 μm are dispersed and applied to the surface of the fibers 10 of the towel 1. As shown in FIG. 3, the microcapsule 11 has a laminated structure in which a capsule body 111 having a hollow sphere inside and an antifungal agent 14 (see FIG. 6D) are contained therein. The capsule body 11 is made of a silica (for example, containing silicon dioxide) material, and about 50,000 micropores 110 communicating with the inside are individually formed on the surface thereof. The weight ratio of the capsule body 11 and the fungicide 14 contained therein is, for example, 6: 4 in the same order.

With this configuration, the fungicide 14 is eluted outside through the micropores 110. The microcapsule 11 is attached to the peripheral surface of each fiber 10 using a binder (binder) 13.
According to such a configuration, there is an advantage that a strong adhesive force can be obtained in proportion to the deposition area of the binder 13. However, the micropores 110 on the surface of the capsule body 111 are buried by the binder 13, and the antifungal agent 14 is not eluted to the surroundings, so that the antifungal effect may be lost. For this reason, attention should be paid to thickness adjustment of the binder 13 and material selection. As binder materials, organic rubber materials such as vinyl chloride, vinyl acetate, acrylic, sodium alginate, urethane, silicone, and phenol, natural rubber resins such as gum arabic, starches, sugars, and proteins are used. You can also.

  Note that the size of the microcapsule 11 is not limited to the above, and can be set, for example, in the range of several μm to several thousand μm. The material of the microcapsule 11 is not only a silica material but also a water-insoluble material (for example, urethane resin, acrylic resin, vinyl, etc.) in consideration of the decoloration (chlorine) treatment of the hand towel 1 after use and excessive elution during the washing treatment. Organic materials such as resins and cellulose resins) can be used.

In the configuration shown in FIG. 3, all the microcapsules 11 have the same size, but the present invention is not limited to this. For example, as shown in FIG. 4, microcapsules 11a to 11c having different sizes may be used.
Even in such a configuration, the same effect as the configuration of FIG. 2 can be expected. If the microcapsule 11c having a small size is used, it is preferable that even a fiber processed product having a relatively high fiber density can be dispersed and adhered to the surface of the intricate fiber 10.

Here, the microcapsule 11 is not limited to the method of attaching the fiber 10 to the fiber 10 with the binder 13, and may be directly attached using the affinity between the capsule body 111 and the fiber 10.
FIG. 5 shows a configuration in which the microcapsule 11 is directly attached to the peripheral surface of each fiber 10 at the attaching portion 12 using a known dipping method. FIG. 6 shows a configuration in which the microcapsules 11a to 11c having different sizes are attached to the fiber 10 by the attaching portions 12a to 12c corresponding to the capsules.

Since the capsule body 111 made of a silica material is more porous than other microcapsule materials, it is easily physically entangled with the fiber 10 that is a natural fiber (cotton) and has an affinity (binding property) with the fiber 10. ) Has a high nature. Therefore, as shown in FIGS. 5 and 6, once the microcapsule 11 is once attached to the fiber 10 by the dipping method, it does not fall off easily by chlorination or washing. For this reason, it can be expected to exhibit good antifungal properties over a certain period.
(Composition of the fungicide 14)
As the antifungal agent 14 used in the present invention, various conventional materials can be used, but it can be composed of an organic composite synthetic agent. In this case, among biguanides (for example, PHMB), tolylsulfone (for example, diiodomethyl-p-tolylsulfone), and benzimidazole (for example, methyl (benzimidazol-2yl) carbamate). When one or more components selected from the above are included in the composition, it is suitable for maintaining the antifungal property. With this composition, the drug stability temperature can be set in the range of -40 ° C or higher and 400 ° C or lower, and, like other organic and agrochemical fungicides, the cell walls of bacteria and fungi are destroyed. The ability to inhibit the biosynthesis of proteins, DNA, SH groups, etc., which are constituents of.

  The effect is exhibited with a small amount of MIC value of 25 ppm or less. This addition amount is about 1/5 compared to general organic and agricultural chemicals, and about 1/50 compared to inorganic systems, which means that a sufficient effect can be obtained. Bacteria whose biosynthesis is inhibited by the fungicide 14 transmit danger information to the same bacteria, but this prevents the bacteria from coming close to the fungicide 14 (repellent effect), and the attached bacteria are finally Die due to lack of nutrients.

The concentration of the fungicide 14 in the microcapsule can be expected to have a certain effect at any concentration, but according to the study of the present inventor, a concentration range of PHMB of 10 ppm to 50000 ppm is appropriate. For example, it is preferable to adjust to 500 ppm or 600 ppm.
As a component of the antifungal agent 14, a known organic antibacterial and antifungal agent can be used alone or in combination with each other in addition to the above-mentioned organic composite synthetic agent. Thiabendazole, carbendazine, captan, fluorophorpet, chlorxylenol, chlorcresol, chlorothalonil, 1,2-dibromo-2, 4-dicyanobutane, sodium pyrithione, zinc pyrithione, IPBC, 2-methyl-4-isothiazoline-3 -On and 5-chloro-2-methyl-4-isothiazolin-3-one mixed solutions (“The latest antibacterial and antifungal technologies and the actual state of DDS”, published on April 7, 2005, published by NTS) See).
(Effective properties)
In the hand towel 1 having the above configuration, the following effects are synergistically exhibited.

First, the antifungal agent 14 introduced into the microcapsule 11 is released to the outside through the innumerable micropores 110 of the capsule body 111, thereby exhibiting antifungal properties. Therefore, compared with the structure in which the antifungal agent 14 is directly attached to the surface of the fiber 10, the antifungal agent 14 does not scatter and volatilize around at once.
Therefore, antifungal properties are exhibited for a relatively long period of time with respect to the conventional configuration, and fungus grows on the surface of the fiber 10, and malodors and discoloration caused by mold can be prevented. Once mold occurs, the spore may drift to the surroundings even in a slight breeze, and there is a possibility that a person may inhale the lungs, but the present invention prevents these problems by preventing mold growth as described above. Can be reduced.

  The antifungal effect is obtained by releasing the antifungal agent 14 to the outside through the countless micropores 111 arranged on the surface of the capsule body 111 in the towel 1. This effect is particularly useful when the condition of mold growth is high, such as when the hand towel is kept in a wet state for a certain period of time (in some cases, it is further wrapped with a resin film for a certain period of time) and stored before use.

Furthermore, when the hand towel 1 is stored in a humidified and warm state, such as in winter, the mold breeding environment is further increased, but even in this case, the mold prevention performance is exhibited very effectively.
In addition, hand towels with molds usually contact the contractor without being used, and are promptly collected by the contractor, and are subject to decolorization (chlorine) treatment, washing treatment, disposal processing, etc. to remove mold It is said. However, such a service is not desirable in nature and may cause a drop in the quality of hand towels, impair the reliability of customers, and increase business costs. Therefore, if the mold-proof hand towel 1 of the present invention is used, it is possible to drastically reduce the labor involved in collecting such unnecessary hand towels, so that both the provision of stable hand towels and the reduction of business costs are realized. It is expected to have a great effect on business activities with high reliability.

In addition to dirt attached to wet towel fibers, the mold erodes the fibers themselves as nutrients and continues to breed after use and before decolorization (chlorine) treatment. However, in the present invention, such mold growth can also be prevented by the fungicide 14, so that the erosion degradation of the fiber 10 can be effectively suppressed, and the waste rate of hand towels after collection can be reduced.
Secondly, in the hand towel 1 of the present invention, the anti-fungal agent 14 is included in the microcapsule 11, and most of the anti-fungal agent 14 is covered by the capsule body 111. Therefore, even during the decoloring process and the washing process, the amount of contact with the chlorine solution or the cleaning liquid is small, and the elution is difficult. As a result, compared with the conventional configuration in which the antifungal agent is directly attached to the fiber, it is less susceptible to the influence of the outside world, and therefore has excellent characteristics in washing durability.

Moreover, even if the hand towel 1 after use is recovered after use and subjected to each regeneration treatment, the mold resistance is not excessively lost by this, and the normal life of the towel body 1X (generally, the recovery after use is 30 to 30%). Up to 40 cycles), excellent antifungal property can be expected to be maintained.
When the capsule body 111 is made of a highly water-insoluble material such as silica material, the durability of the capsule 11 at the time of decoloring and washing can be improved, and the affinity for the fiber 10 is high. Therefore, strong adhesion can be secured. Therefore, it is beneficial for maintaining long-term mildew resistance in the towel 1.

The bad smell of hand towels may be caused by the propagation of germs due to unevenness of chlorine and washing treatment after collection (including lack of sterilization treatment) in addition to the above-mentioned mold propagation. However, in the present invention, the use of the above-mentioned organic composite synthetic agent as the antifungal agent 14 having excellent performance in both antifungal and bactericidal properties can effectively reduce such malodorous odor and is suitable. .
Therefore, in the present invention, there is no need to treat the wet towel after use with high-concentration chlorine for the purpose of enhancing the sterilizing effect as well as the antifungal property as in the prior art. Damage can be reduced and an improvement in the cycle life of the fiber 10 can be expected.

In addition, the microcapsule 11 encapsulates the antifungal agent 14 and allows the antifungal agent 14 to be retained for a long period of time, thereby enabling hygiene management over time for various germs (various E. coli, Salmonella, Staphylococcus aureus, etc.) The effect of prevention of infectious diseases of users can be expected sufficiently.
Therefore, according to the present invention, the hygiene management can be carried out without special mechanical equipment and countermeasures such as ozone sterilization, high-temperature steam, treatment with a special detergent, etc. Is advantageous.

When the microcapsule 11 is attached to the fiber 10 with the binder 13, the microcapsule can be strongly attached regardless of the affinity of the fiber and the microcapsule. Therefore, there is an advantage that the microcapsule 11 can be more effectively prevented from falling off even when friction between fibers or physical vibration is applied during the decoloring / washing process.
(Manufacturing method of the microcapsule 11)
Hereinafter, the manufacturing process of the microcapsule 11 based on the interfacial polymerization method will be described with reference to FIG. The manufacturing process is roughly divided into four stages (a) to (d). For convenience of explanation, the microcapsule 11 being formed is represented by a schematic cross-sectional view, but it is actually a sphere having a laminated structure as described above.

  First, a solution containing the fungicide 14 introduced into the capsule body 111 is prepared. In the present invention, in consideration of washing durability, it is desirable to use an antifungal agent having a relatively low water solubility, and PHMB and diiodomethyl-p-tolylsulfone are used as examples of components that satisfy this. Since PHMB is liquid at normal temperature and diiodomethyl-p-tolylsulfone is in powder form, diiodomethyl-p-tolylsulfone is dissolved in PHMB to produce a mixture of both. If necessary, a solvent is added little by little.

The adjusted fungicide solution is put into an oil-based solvent (FIG. 7 (a)).
Next, the oil-based solvent is stirred with a stirrer, and liquid droplets of the fungicide solution are diffused into the oil-based solvent, so that the entire solution is made into an emulsion (emulsion). This forms a water-in-oil (W / O type) dispersion solution (FIG. 7B).
Subsequently, while maintaining the stirring state, a microcapsule material containing a water-insoluble silica material and adjusted to be water-soluble in the entire solution is put into the solution (FIG. 7C).

Thereby, the microcapsule material surrounds the droplets of the antifungal solution, and a microcapsule structure is formed.
Thereafter, the capsule is taken out from the antifungal solution. Then, when excess water / solvent is volatilized and dried, the microcapsule 11 is completed (FIG. 7D).
FIG. 7 shows an example of forming a water-in-oil (W / O type) dispersion system solution. However, if the characteristics of the fungicide and the microcapsule material are oil-based, the oil-in-water droplets are combined accordingly. A (O / W type) dispersion solution may be formed.

Further, in FIG. 7A, a dummy aqueous solution can be used instead of introducing the antifungal agent solution, and only the microcapsule body can be formed first. In this case, the dummy aqueous solution is removed from the capsule body after the step of FIG. Thereafter, the capsule body is taken out and put into a fungicide solution. When the solution is stirred, the fungicide penetrates into the inside of the capsule body through the micropores. Thereby, the microcapsule 11 similar to FIG. 7D is obtained.
(How to attach microcapsules to the hand towel body)
In the present invention, any known method can be applied as a method of bonding the microcapsule 11 to the fiber 10. For example, known coating methods such as exhaustion method (immersion absorption method), printing method, pad method, spray method, gravure method, knife method and the like can be mentioned. Can adhere to the surface.

FIG. 8 illustrates a method of joining the microcapsules 11 to the fibers 10 based on the exhaust method.
In the method shown in the figure, first, an uncut banded towel body 1X, rollers 101 to 105, and a microcapsule dispersion liquid (including microcapsules 11 and binder 13) charged in a bat are prepared. A roller 101 is a feeding roller, and rollers 102 to 104 are heating rollers, and each peripheral surface is heated to a predetermined heating temperature (for example, 90 ° C.). The roller 105 is a take-up roller.

  At the time of performing the joining process, first, as shown in FIG. 8, the hand towel body 1X is suspended in the dispersion liquid between the rollers 101 and 102 while being suspended from the rollers 101 to 105 from the upstream side toward the downstream side. Like that. When the rollers 101 to 105 are rotationally driven in this state, the hand towel body 1X fed out by the feeding roller 101 is sequentially immersed in the dispersion. And in the said dispersion liquid, the microcapsule 11 adheres to the surface of the fiber 10 with the binder 13. FIG. In this state, the processed hand towel body 1Y pulled up from the dispersion liquid by the heating rollers 102 to 104 is heated on the heating peripheral surfaces of the heating rollers 102 to 104, and the solvent components are volatilized and removed. Thereby, the binder 13 gradually fixes the microcapsule 11 to the fiber 10 and is dried. The processed towel body 1 </ b> Y after being dried is taken up by the take-up roller 105. After that, when it is cut into a predetermined size and processed into a wet state, the mold-proof hand towel 1 is completed.

(About washing durability)
The antifungal hand towel of the examples (antifungal agent 0.2% to 2.0% added product) was prepared by the above method, and the antifungal washing durability was examined.
Specifically, the anti-mold hand towel of the produced example was subjected to chlorination (decolorization) and washing in order, and this was repeated as 30 sets.

Next, the mold resistance test (accelerated environment promotion test equivalent to 5 years) was performed on the mold-proof hand towel after the completion of the above 30 sets of treatments, and the condition of mold growth was confirmed.
Each processing condition was as follows.
The antifungal hand towel of the example was immersed in an aqueous solution of 350 ppm sodium hypochlorite (or bleached powder) for 3 minutes. Then, it exposed to the hot water vapor | steam heated at 100 degreeC or more for 10 minutes, and sterilized.

Subsequently, using a washing solution containing linear alkylbenzene sulfonate sodium and sodium metasilicate as a washing solution, washing treatment was performed at room temperature for 1 hour (washing time in an internal washing machine was about 20 minutes).
The mold resistance test was performed according to the following procedure.
First, 45 types of preselected test bacteria were applied to an inorganic agar medium with a mixed spore suspension of about 10 ⁶ cells / ml. The mold-proof hand towel of the Example which implemented the said chlorination process and the selection process was arrange | positioned to this, and the presence or absence of the reproduction | regeneration of mold | fungi after having been mounted at room temperature for 21 days or more was examined visually. In addition, the said test ensures the evaluation property which exceeds the official test intensity | strength of JISZ2911 or more in each conditions, such as a test bacterial count, culture | cultivation time, and a culture medium.

As a result of the experiment, it was confirmed that the mildew-proof hand towel of the example maintained the same mildew-proof property as a new article. That is, according to the present invention, it is considered that highly reliable antifungal properties are exhibited over a long life similar to that of a normal hand towel.
(Other matters)
In Embodiment 1 described above, the fibers of the hand towel body are knitted and configured, but a nonwoven fabric may be used.

  The fiber processed product of the present invention can be applied to towels and hand towels in addition to hand towels, but is not limited to flat cloth pieces, and may be processed products such as clothes, gloves, and socks. In this case, particularly good antifungal and antibacterial effects are expected when sportswear including sword tool lining, clothing for work sites, rain gear, etc. is assumed to be used continuously in a wet state with sweat or rain. can do.

Alternatively, an antifungal fiber may be prepared in advance, and the fiber may be used as a primary processed product, and various fiber processed products (secondary processed products) may be manufactured using the fiber.
Furthermore, the microcapsule 11 in the present invention is not limited to the so-called spherical mononuclear structure shown in FIG. 2, and may be a spherical multinuclear structure or an amorphous mononuclear / multinuclear structure. In addition, the capsule body 111 is not limited to the hollow structure, and may be configured by a low-density body having voids inside, and the capsule body 111 may include the antifungal agent 14.

  In the first embodiment, the configuration of the microcapsule 11 having the micropore 110 is illustrated. However, in the present invention, the microcapsule 11 is not formed, and the microcapsule 11 is gradually collapsed over time or physically, thereby preventing the microcapsule 11. The mold may be released to the surroundings. However, from the viewpoint of both long-term maintenance of washing durability and antifungal properties, it is desirable that the capsule body 111 itself be configured so as not to be crushed by using micropores.

  The mold-proof fiber processed product of the present invention can be widely used for, for example, medical treatment, bedding, and building materials (wallpaper, carpet, etc.) in addition to hand towels.

It is an external view of the anti-mold hand towel in this Embodiment 1. FIG. It is the elements on larger scale which show the structure of the fiber of a moldproof hand towel. It is the elements on larger scale which show the structure of a microcapsule. It is the elements on larger scale which show another embodiment of a microcapsule. It is the elements on larger scale which show another attachment form of a microcapsule. It is the elements on larger scale which show another attachment form of a microcapsule. It is a figure which shows the manufacturing method of a microcapsule. It is a figure which shows the adhesion method of the microcapsule to a towel body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mold-proofing hand towel 1X Wetting body 10 Fiber 11, 11a-11c Microcapsule 12, 12a-12c Adhering part 13 Binder 14 Mold prevention agent 111 Capsule body 110, 110a-110c Micropore

Claims (9)

A microcapsule containing an antifungal agent in a microcapsule body having a plurality of micropores communicating with the hollow interior formed on the surface,
An antifungal fiber processed product obtained by attaching the microcapsule to a fiber. The anti-fungal agent comprises one or more component compositions selected from PHMB, diiodomethyl-p-tolylsulfone, and methyl (benzimidazol-2-yl) carbamate. Anti-mold fiber processed product. The antifungal fiber processed product according to claim 2, wherein PHMB is contained in the microcapsule as a component composition of the antifungal agent in a concentration range of 10 ppm to 50000 ppm. The said microcapsule is comprised with the water-insoluble material. The moldproof fiber processed material in any one of Claims 1-3 characterized by the above-mentioned. The mold-resistant fiber processed product according to claim 4, wherein the water-insoluble material is a silica material. The said fiber is cotton. The mold-proof fiber processed material in any one of Claims 1-5 characterized by the above-mentioned. The mold-resistant fiber processed product according to any one of claims 1 to 6, wherein the microcapsule is attached to a fiber with a binder. The binder comprises one or more component compositions selected from vinyl chloride, vinyl acetate, acrylic, sodium alginate, urethane, silicone, phenol, natural rubber resin, starches, sugars, and proteins. The processed mold-proof fiber according to claim 7. The processed fiber product according to any one of claims 1 to 8, wherein the processed fiber product is a wet towel.

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