JP6207860B2 - Chemical volatilization fiber structure - Google Patents

Description

  The present invention can be molded into any shape such as a thin and bent shape compared with a conventional liquid absorbent core, has excellent volatility, and has a good component balance to the end with a chemical solution such as a fragrance or insecticide. The present invention relates to a chemical volatilization fiber structure that can volatilize.

  Conventionally, a variety of products from a simple device to a complicated device have been on the market as a device for volatilizing chemicals such as fragrances and insecticides. The most widespread product is a volatilization device of a type in which a suction core is brought into contact with a liquid containing a drug, the drug is sucked through the suction core, and the drug is volatilized in a room or the like. Of these volatilization devices, the method of using various fiber structures for the sucking core is from the type that used felt in the past, natural fibers and synthetic fibers having various characteristics, alone or in multiple use Various types of products are commercially available up to products of the type using the prepared fiber structure.

  There are many proposals for a chemical volatilization device that uses a fiber structure as a wick. For example, a proposal of a liquid absorbent core with a porosity of 60%, a diameter of about 4 cm, and a length of about 20 cm, in which polyvinyl alcohol or sodium polyacrylate is attached to another synthetic fiber and coated (Patent Document 1), plant fiber Heat treatment is applied to the fiber stack structure in which at least the heat-sealable thermoplastic resin is mixed, and the volatile structure fixed integrally at the intersection is sheet-like, rod-like, cylindrical, prismatic, etc. (Patent Document 2) in which a shape of the shape is formed, and a top or sliver-shaped acrylic, nylon, or polyester synthetic resin fiber is thermally cured by any one of melamine, phenol, urea, or a combination thereof For example, there is a proposal (Patent Document 3) in which a stick-shaped liquid-absorbing core having a diameter of 8 mm and a length of 73 cm is formed by bonding and heat-molding with a functional resin.

  In addition, the liquid absorption core in which a plurality of porous liquid absorption volatilization layers are arranged around the retentive agent disposed in the substantially central portion, and the volatilization of the drug that is insufficient with the central core alone is perforated around it. Proposal to improve by providing a quality volatilization layer (Patent Document 4), rayon having an average fiber length of 1-50 and 5-500 parts by weight of reinforcing fiber of one or more types of hemp are uniformly dispersed in 100 parts by weight of phenol resin Proposal in which phenol resin powder is dispersed in reinforcing fibers such as rayon in a liquid absorbent core bonded in a state, heated under pressure and molded into a sheet (Patent Document 5), thermal fluidity of 60 to 160 mm A proposal for sintering and molding a mixture of 100 parts by weight of thermosetting phenol resin powder, 10 to 50 parts by weight of cellulose powder and 10 to 50 parts by weight of glass fiber powder at 140 to 200 ° C. (Patent Document 6). Fiber or A liquid-absorbing core, the periphery of which is coated with a fiber braid, the fiber braid being coated with a silicone polymer and a silicone varnish, and the fiber liquid-absorbing layer and the fiber braid There is a proposal of an endothermic core in which an object is fixed by the silicone varnish (Patent Document 7).

  Furthermore, a structure in which silica as inorganic particles is adhered as an aggregate to a fiber structure such as paper, woven fabric, and non-woven fabric is obtained by packing silica colloid into voids inside the fiber structure and densely filling it. Although it is shape maintenance and stabilization of volatilization, it is difficult to make the thing of arbitrary shapes, such as a bent shape, and is not suitable for volatilization of a small amount of chemical | medical agents (patent document 8). Further, the top or sliver of the synthetic resin fiber is bonded and molded with a thermosetting resin, and the liquid absorbent core is immersed in a polymer compound solution consisting of methyl cellulose or an analog thereof for 1 hour or more, and then dried. There is a proposal of a liquid absorbent core for fragrance heating transpiration that imparts and maintains a desired liquid absorbency to the liquid absorbent core (Patent Document 9).

  These proposals are proposals to improve chemicals such as fragrances and insecticides in products that have been volatilized for about a month so that they do not remain in the container and can be volatilized to the end. Suffered from defects such as clogging and changes in the composition of the chemicals that volatilize when used for a long time.

  In addition, most of these proposals have a diameter of the absorbent core as thick as 1 to 5 cm in order to prioritize volatility, and many of them have a cylindrical shape. In recent years, with emphasis on fashionability, thinner, various shapes can be prepared, liquid cores that do not feel uncomfortable as interior goods, and do not impair upholstery, and proposals for new types of liquid cores that consumers demand Was strongly sought after.

Patent No. 4402792 JP 2005-58550 A Japanese Patent No. 2668291 Japanese Patent No. 3727830 JP-A-8-131045 JP-A-6-277269 Japanese Patent No. 3032853 JP 2010-88427 A Patent No. 3690759

  The present invention can be molded into any shape such as a thin and bent shape compared with a conventional liquid absorbent core, has excellent volatility, and has a good component balance to the end with a chemical solution such as a fragrance or insecticide. The present invention relates to a chemical volatilization fiber structure that can volatilize.

  In recent years, the present inventors have developed a rod-shaped drug volatilizer using a bleached and dried product of rattan (coconut family Tou Ren), a plant material native to tropical Asia, as a liquid-absorbing core emphasizing fashionability. We focused on products that were soaked in a transparent container filled with scent and released aroma. This product is also marketed as “Reed Diffuser”, and is certainly a highly fashionable and promising product. However, regarding the volatility of chemicals, the volatilization performance of water-based products is particularly low, and because it is a natural product, there are concerns about securing supply stability and quality performance, and depending on the nature of the volatilized chemicals It was found that it was difficult to modify the dimensions and materials, and it was already completed by itself.

  Therefore, in order to confirm the mechanism of rattan drug uptake, bamboo-shaped rattan was cut into rings. Then, many circular holes of the vascular bundle tube of about 0.2 to 0.3 mm, which is the internal tissue of the plant, are distributed, and this penetrates the inside in the long axis direction of bamboo-like rattan. Therefore, it was expected that the drug was sucked up by capillary action through this vascular duct and volatilized. However, after immersing rattan in the staining solution and observing it with a stereomicroscope, surprisingly, the vessel itself of the vascular bundle is not involved in sucking up at all, and is distributed concentrically at a distance of about 50 μm from the vessel. It was confirmed that the drug solution was sucked up through the phloem tubule tissue. Therefore, for the purpose of simulating the sucking up of such tissues, a commercially available octopus yarn was impregnated with a melamine resin prepolymer, heated and solidified, and immersed in a fragrance solution containing a dyeing solution. It has been found that the detailed structure derived from the roaring shows the same dyeing aspect as that of the phloem tubule tissue, and it is possible to sufficiently absorb and volatilize the fragrance.

  Therefore, after various investigations, a thermosetting resin such as a melamine resin prepolymer was mixed and dispersed in water, stirred, and made into a transparent solution, and then a thickener was added and mixed in this solution. A cured resin polymer-thickening agent solution is obtained, silica gel is mixed and dispersed in this solution, a thermosetting resin-silica gel dispersion is prepared, the dispersion is applied to a twisted yarn, and heated to obtain a chemical volatilization agent. It was found that when the fiber structure was immersed in a chemical solution such as a fragrance, the drug was sucked up very well and could be volatilized while maintaining the component balance for a long time without clogging, thus completing the present invention.

Thus, the present invention provides the following.
(1) After mixing the thickener aqueous solution with the thermosetting resin prepolymer aqueous solution, the curing agent is mixed and dissolved to obtain a thermosetting resin polymer-thickener solution, and silica gel is mixed and dispersed in the solution to heat. A fiber structure for chemical volatilization obtained by preparing a cured resin-silica gel dispersion, applying the dispersion to a twisted yarn, and heating at 100 to 150 ° C.
(2) The fiber structure for chemical volatilization according to (1), wherein the thermosetting resin prepolymer is a melamine resin prepolymer.
(3) The fiber structure for chemical volatilization according to (1) or (2), wherein the thickener is a water-soluble cellulose ether.
(4) The fiber structure for chemical volatilization according to any one of (1) to (3), wherein a dye or a pigment is further added to and mixed with the thermosetting resin-silica gel dispersion.

  According to the present invention, it can be molded into any shape such as a thin and bent shape compared to a conventional liquid absorbent core, has excellent volatility, and has a good balance of ingredients such as fragrance, insecticide and the like. A fiber structure for chemical volatilization that can volatilize a chemical solution (hereinafter simply referred to as a chemical volatilization product) can be manufactured by a simple method. It becomes.

  Hereinafter, the present invention will be described in more detail.

  The thermosetting prepolymer used in the present invention is a melamine resin prepolymer, urea resin prepolymer, ethylene urea glyoxal resin prepolymer, benzoguanamine resin prepolymer, phenol resin prepolymer (novolak, resole), resorcinol resin prepolymer, Although a furfural resin prepolymer etc. can be mentioned, it is not necessarily limited to these. These prepolymers can be subjected to addition condensation of corresponding raw materials by an acid-base catalyst by a generally known method, but commercially available products can also be used.

  The method for preparing the thermosetting resin prepolymer aqueous solution is performed as follows. For example, in the case of a melamine resin prepolymer, 0.35 to 1.5 parts by weight, preferably 0.55 to 1 part by weight of water is mixed with respect to 1 part by weight of the melamine resin prepolymer, and 5 minutes to 15 minutes. After stirring for about 5 minutes, the mixture is allowed to stand for 5 to 10 minutes to obtain a colorless viscous liquid. The mixing ratio of the thermosetting resin prepolymer and water and the steps of stirring and standing are such that the thermosetting resin prepolymer is completely dissolved in water to obtain a highly uniform liquid, and has a good strength. Is important to get. Although it is somewhat inferior in long-term stability, a commercial product of such a concentrated aqueous solution state melamine resin prepolymer is also available on the market and can also be used.

  Further, the thickener used in the present invention may be any thickener that can be mutually dissolved in the aqueous prepolymer, for example, water-soluble cellulose ether, guar gum, pectin, glucomannan, polyvinyl alcohol. However, the present invention is not limited to these.

  The thickener is prepared as an aqueous solution in advance, and mixed and dissolved in the thermosetting resin prepolymer aqueous solution. The mixing ratio of the thickener and water when preparing the thickener aqueous solution is 50 to 1000 parts by weight, preferably 100 to 400 parts by weight of water with respect to 1 part by weight of the thickener. Depending on the type of the agent, in some cases, hot water dispersion or the like is performed to prevent the formation of mamako (dama, insoluble part solidified) when preparing the thickener aqueous solution. Although it depends on the type of thickener, for example, in the case of water-soluble cellulose ether, generally when the amount of water is less than 50 parts by weight, the viscosity of the liquid becomes too high and handling becomes difficult. Is more than 1000 parts by weight, the viscosity is too low to disperse the added silica gel uniformly and stably, the adhesion to the fiber is lowered, and the permeability to the fiber is too high to be applied. This is not preferable because the properties are lowered.

  The curing agent used in the present invention is, for example, paratoluenesulfonic acid, xylenesulfonic acid, formic acid, oxalic acid, phosphoric acid, ammonium chloride, zinc chloride for melamine resin prepolymer and urea resin prepolymer. Of the phenol resin prepolymer and resorcinol resin prepolymer, hexamethylenetetramine is used in combination as a crosslinking agent for a prepolymer prepared with an acid catalyst, such as a novolac phenol resin prepolymer. In addition, a known curing agent or crosslinking agent may be used as a conventional technique, but is not limited thereto. In general, combinations of curing agents that can be used for thermosetting resin prepolymers may be based on information provided by the prepolymer manufacturer / distributor, etc., and in many cases, recommended or designated by these manufacturers. Appropriate hardeners can be obtained together. Some types and properties of the prepolymer do not require a curing agent and can be cured simply by heating. In this case, a method that does not use a curing agent may be employed to simplify the process.

  The silica gel used in the present invention may be a commercially available product having a particle size of 10 to 300 μm, preferably 60 to 250 μm. If the particle size is less than 40 μm, the performance of the completed chemical volatilizer is deteriorated, dust is likely to fly and there is a problem in handling, and if the particle size exceeds 300 μm, the silica gel in the thermosetting resin-silica gel dispersion is not preferred. This is not preferable because stable dispersion cannot be performed, and even when applied to a twisted yarn, it is difficult to apply uniformly, and there is a problem that silica gel is noticeably peeled off from the completed chemical volatilization body.

  The twisted yarn used in the present invention is generally referred to as a yarn, and is obtained by twisting natural fibers and / or chemical fibers. Examples of natural fibers include plant fibers such as cotton, hemp, and linen; animal fibers such as wool, silk, cashmere, and alpaca. Synthetic fibers include, for example, nylon (polyamide), vinylon (polyvinyl alcohol-based acetal fiber), polyester (polyethylene terephthalate / PET, etc.) except polypropylene and polyethylene, which are excluded from problems of heat resistance and flexibility. Examples thereof include, but are not limited to, fibers such as acrylic (polyacrylonitrile), polyurethane, and halogen-containing fibers. These yarns are sold as yarns having a durable structure by drawing and bundling thin raw yarns and twisting them. There are various techniques such as arranging several yarns that have been twisted once and rotating them in the opposite direction to form a single yarn, but any of them can be used in the present invention. Various types of fibers can be used depending on the application, but from the viewpoints of heat resistance, price, flexibility, etc., cotton, polyacrylonitrile, polyethylene terephthalate, jute hemp, nylon are generally preferred. it can. In particular, cotton, polyacrylonitrile, and polyethylene terephthalate are preferable because they are inexpensive and can be easily obtained in various ways of punching and winding.

  The thickness of the thread to be used is not particularly limited, but may be about 1.5 to 10 millimeters, preferably about 3 to 5 millimeters if it is a cotton octopus thread or a gold-tung cotton thread. However, it is not limited to these.

  Next, a thermosetting resin-silica gel dispersion is applied to the twisted yarn. For example, a twisted yarn is wound around a metal plate or metal frame at a predetermined interval, and a cylinder filled with the thermosetting resin-silica gel dispersion is wrapped around this. For example, the dispersion may be placed on the substrate, followed by manual or mechanical tracing of the twisted yarn, and sufficient application so that there is no unpainted residue. After application, the prepolymer is cured by heating in a thermostat. For example, although it is good to heat at 120 degreeC for 30 minutes, it can also be hardened rapidly if it makes it still higher temperature. However, in consideration of the discoloration of the resin and the heat resistance of the fiber, the temperature is 180 ° C. or lower, preferably 150 ° C. or lower. In heat curing, it may be left on the metal plate or metal frame when prepolymer is applied, but after applying the prepolymer, it can be deformed into any shape as long as the flexibility of the fiber allows, and the shape is maintained. It is possible to heat mold as it is.

  In addition, by combining a rotating roller that can be controlled with high precision by a stepping motor or the like and continuously pulling out the completed chemical volatilization body, the fiber is kept in tension, and at the other end, Apply an excessive amount of slurry of thermosetting resin-silica gel dispersion to the surface of the fiber, penetrate the fiber through a perforated rubber membrane and scrape the excess amount of the dispersion, then electric heating, microwave heating The method of curing by, for example, can be continuously produced and is advantageous in the case of mass production. In the case of microwave heating, electromagnetic energy is efficiently supplied to a prepolymer slurry having a large number of dipoles, and the thermosetting resin itself absorbs microwaves, so that it can be adopted as an industrially advantageous method. . The slurry recovered as an excess can be reused, and the chemical volatilized material sent out with a roller after heat curing is rigid enough to be self-supporting, so it is automatically cut on a regular scale by a machine compared to the fiber before curing. It has the characteristic that it is easy.

  In addition, since the thermosetting resin-silica gel dispersion applied to the fiber is a slurry composed of an aqueous solution and a solid, the dye used in the present invention is preferably a water-soluble one in consideration of solubility thereof. is there. For example, Red No. 2, Red No. 106, Blue No. 1, Orange No. 205, Yellow No. 4, Green No. 401 and the like can be mentioned, but not limited thereto. Naturally derived pigments such as gardenia, turmeric, cochineal, onion skin and hot water extract of chestnut iga can also be used. For dyeing with these pigments, built dyeing (Vatt's dyeing) can be used in some cases. In order to obtain a desired color, dyes may be appropriately mixed and used. Since the water-soluble dye is completely incorporated into the resin structure after the resin is fully cured, it does not elute even if it is exposed to a fragrance composition, and may be discolored by oxidation. Low.

  Oil-soluble dyes can also be used in a different manner from water-soluble dyes. For example, oil-soluble natural pigments such as paprika pigment, annatto pigment, tomato pigment, marigold pigment, Dunaliella carotene, carrot carotene, palm oil carotene, β-carotene, astaxanthin, canthaxanthin, lycopene and chlorophyll; and acid dyes , Basic dyes, metal complex dyes, salt-forming dyes, azine dyes, anthraquinone dyes, phthalocyanine dyes, triphenylmethane dyes, and other dyes that are emulsified and dispersed by a conventional emulsification method in a slurry state. A mode in which the resin-silica gel dispersion is mixed, or as described in the following description of the use of the pigment, the oil-soluble dye is mixed with the thermosetting resin-silica gel dispersion in an appropriate particle size as it is in a slurry state. It is also possible to use it. Oil-soluble dyes are generally brighter than water-soluble dyes and have the property of high stability to heat and light.

  In addition, if a fluorescent dye is used as a pigment, the chemical volatilizer emits various fluorescent light such as blue, green, and red in the dark, and it is possible to produce an effective visual effect. Can be significantly increased.

  Furthermore, pigments other than the above-mentioned dyes can be used for the purpose of coloring. In the present invention, since the slurry-state thermosetting resin-silica gel dispersion is used, it is possible to easily disperse the composition in a slurry state by adding a pigment as a solid by an ordinary method. The pigments used in the present invention are inorganic pigments that prevent heat curing of the resin due to strong basicity, for example, white slag (iron oxide), Prussian blue, titanium dioxide, excluding precipitated calcium carbonate, etc. Strontium yellow, precipitated barium sulfate, activated carbon, various lake pigments and the like, and organic pigments include azo dyes such as Solvent Red 27, copper phthalocyanine, etc., but are not limited thereto. Absent. For example, a fluorescent pigment excited by ultraviolet rays or visible light is used to change the color rendering properties, and vivid luminescent color development can be obtained in a dark place by irradiation with long wavelength ultraviolet rays. Similarly, it is possible to use the phosphorescent pigment for the production purpose such that the drug volatilizer emits light in the dark place at the time of irradiation with ultraviolet light or visible light or after irradiation. Further, in the present invention, a visual effect and a beautiful product can be made by using a lame-based material such as a shimmering metal piece in a slurry-like thermosetting resin-silica gel dispersion.

  Moreover, as a chemical | medical agent volatilized using the fiber structure for chemical | medical agent volatilization of this invention, 1 type or 2, such as a fragrance | flavor which has volatility, a deodorant, an insecticide, an insecticide, a disinfectant, a repellent, etc. The additive component more than a seed | species can be mentioned.

  First, as perfumes that can be used in the present invention, specifically, anise oil, bergamot oil, citronella oil, lemon oil, eucalyptus oil, geranium oil, lavender oil, rose oil, jasmine oil, lilac oil, orange oil In addition to natural fragrances such as neroli oil and rosemary oil, Perfume Chemical Directory, 1, 2, 3 [Osamu Okuda, Yodogawa Shoten Publishing], Perfume and flavor Chemicals, 1, 2 [by Steffen Arctander], synthetic fragrances [Into Genichi Kagaku Kogyo Nippo Publishing Co., Ltd.] and Patent Gazette Known, Common and Technical Techniques First, Second, Third, etc. But is not limited to these. In addition, some natural fragrances and synthetic fragrances, alone or in combination, have many effects such as insect repellent, sterilization, repellent, deodorization, etc., and these effects can be expected in addition to use as a fragrance. .

  Drugs such as fragrances, deodorants, insect repellents, insecticides, disinfectants, and repellents are usually dissolved in a solvent and used as drug solutions. When the solvent used is oil-soluble, an oily drug solution is obtained, and when it is water-soluble, an aqueous drug solution is obtained. For example, examples of the oil-soluble solvent include isoparaffin solvents, limonene, α-pinene, 1,8-cineol, and benzyl alcohol. Although depending on the strength of the scent of the product to be designed and the period of use, generally 0.1 wt% to 10 wt% of the drug is dissolved and used in these solvents. Furthermore, examples of the water-soluble solvent include ethyl alcohol, 2-propanol, diethylene glycol dimethyl ether (diglyme), and dipropylene glycol methyl ether. Although depending on the strength of the scent of the product to be designed and the period of use, generally 1 wt% to 50 wt% of the drug is dissolved in these solvents. In general, there are many oil-soluble drugs, but water-based bases based on water are preferred from the viewpoint of fire safety and cost. Therefore, in order to use oil-soluble drugs as water-based bases, There is a method in which a water-soluble solvent is used as an amphiphilic solvent, and further, a surfactant is used to help dissolve the drug, and the solvent is transparently dispersed in a large excess amount of water. Examples of such surfactants include polyoxyethylene alkyl ether (for example, Kao Corporation, Emulgen 420: registered trademark), diethylhexyl sodium sulfosuccinate (Nikko Chemicals, Nikkor OTP-75: registered trademark), Examples thereof include, but are not limited to, polyoxyethylene sorbitan monooleate (polysorbate 20), polyoxyethylene hydrogenated castor oil, polyoxyethylene octyl phenyl ether (Triton X-100), and the like. By adding about 50 to 300% by weight of these surfactants with respect to the drug, the solubility of the drug can be greatly improved and can be kept stable for a long time.

  Moreover, although it is an insect repellent that can be used in the present invention, any volatilizing insect repellent can be used. Specific examples include, but are not limited to, empentrin (pyrethroid), paradichlorobenzene, naphthalene, camphor and the like. Usually, stable volatilization can be performed by using it by dissolving in a paraffin solvent.

  Moreover, although it is a repellent which can be used by this invention, pyrethroid ester compounds, such as metfurthrin, a profluthrin, and transfluthrin generally used as a repellent with respect to a flying insect etc .; p-menthane-3,8-diol , Diol compounds such as p-menthane-1,8-diol, and 2-ethyl-1,3-hexanediol; amino acid ester compounds such as 3- (Nn-butyl-N-acetyl) aminopropionic acid ethyl ester Diethyl oxalate, dimethyl malonate, diethyl malonate, dimethyl succinate, diethyl succinate, dipropyl succinate, dibutyl succinate, dimethyl glutarate, diethyl glutarate, diethyl adipate, dipropyl adipate, dibutyl adipate, sebacine Diethyl acid, phthalate Dibasic acid ester compounds such as dimethyl, dibutyl phthalate, dibutyl maleate, and dibutyl fumarate; orange oil, cassia oil, grapefruit oil, clove oil, cedarwood oil, citronella oil, cinnamon oil, cinnamon leaf oil, geranium Plant essential oils such as oil, thyme white oil, peppermint oil, mint oil, pimento oil, fennel oil, penny royal oil, peppermint oil, bergamot oil, lavender oil, roux oil and lemongrass oil; citronellal, turpineol, menthol, limonene, Non-limiting examples include volatile compounds such as geraniol, citronellol, citral, l-carvone and camphene, and any mixtures thereof.

  In addition, many of the components exemplified as perfumes that can be used in the present invention have an effect as a deodorant and an antibacterial agent, and by selecting the type and mixing ratio depending on the purpose, volatile It can be used as a deodorant and antibacterial agent.

  Next, it is a specific method for preparing the chemical volatilization fiber structure. For example, a melamine resin prepolymer as a thermosetting resin is mixed and dispersed in water, and then stirred to obtain a transparent solution. Add and mix water-soluble cellulose ether, which is a thickener, to obtain a thermosetting resin polymer-thickening agent solution that is a clear solution, and mix and disperse silica gel in this solution to obtain a thermosetting resin-silica gel dispersion. The method of preparing and apply | coating this dispersion to a twisted-yarn body, and heating at 100-150 degreeC can obtain the method of obtaining the fiber structure for chemical volatilization can be mentioned.

  In addition, the chemical volatilization fiber structure of the present invention includes metal salts, metal sequestering agents, antioxidants, pH adjusters, antifoaming agents, alcohols, glycols, which are used in general chemical volatilization bodies as desired. , Solvents such as glycol ethers, polyols, substituted alcohols, hydrocarbons, esters; parabens such as methylparaben; preservatives such as benzoates; inorganic alkalis such as sodium hydroxide and potassium hydroxide; Neutralizing agents such as organic alkalis such as triethanolamine and 2-amino-2-methyl-1,3-propanediol; salts such as calcium chloride, calcium lactate and potassium chloride; ultraviolet absorbers; surfactants; stabilization And additives that improve aesthetics and stability, such as an agent.

  The chemical volatilization fiber structure can absorb the chemical, suck it up, and volatilize it in the atmosphere by immersing it in a container containing the chemical solution. The outer diameter of the chemical volatilization fiber structure of the present invention varies depending on the thickness of the yarn used and the type of the thermosetting resin-silica gel dispersion to be applied, but is about 2 to 20 mm, preferably about 4 to 8 mm. Can be mentioned. Even a thin one with an outer diameter of about 5 to 8 mm can absorb and volatilize a drug surprisingly efficiently, stably without clogging for a long period of time, and has a good fragrance without any change in the composition of the drug It is possible to keep the balance and volatilize the target drug around.

  Moreover, since the chemical volatilization body fiber structure of the present invention can be easily formed into a rod-like shape, a rod-like tip portion having an arbitrary shape such as an 8-shape, an arc shape, a heart shape, etc. It is possible to design products that imitate characters and have high design.

  Furthermore, the chemical volatilization fiber structure of the present invention is the most common usage method that is vertically immersed in a container filled with a drug solution, but the chemical volatilization fiber structure of the present invention has one end. Can be sucked and volatilized to the opposite end even if not in the vertical direction, if the container is devised, the chemical volatilization fiber structure of the present invention is attached to the wall or It can be installed in any direction from the ceiling, and can be designed to match the surrounding environment.

  EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention further more concretely, it is not necessarily limited to these.

[Example 1] Preparation example 1 of a chemical volatilizer
To a 50 mL plastic cup, weigh 5 g of Nicalendin S-260 (Nippon Carbide Industries Co., Ltd. methylol melamine prepolymer; registered trademark) as a melamine resin prepolymer, add 5 g of purified water, and immediately stir vigorously. After 5 minutes, a viscous mixture (melamine resin prepolymer aqueous solution) was obtained. The mixture was allowed to stand to remove bubbles to obtain a clear liquid. Separately, 20 g of Metrolose 60SH-4000 (Hydroxypropylmethylcellulose manufactured by Shin-Etsu Chemical Co., Ltd .; registered trademark) as a cellulose ether thickener was placed in 980 g of hot water at 85 ° C. in a 2 L glass beaker. The mixture was added with stirring, and the resulting grayish white dispersion was slowly cooled with stirring to replenish the evaporated water to 1 kg of a 2 wt% aqueous solution, thereby obtaining a colorless and clear thickener aqueous solution. When 5 g of this thickener aqueous solution is mixed with the above melamine resin prepolymer aqueous solution while stirring, it immediately becomes cloudy. Then, when stirring is continued for about 1 to 2 minutes, a uniform colorless and clear viscous liquid is obtained again. It became. As a curing agent, 0.5 g of a 30% by weight aqueous solution of paratoluenesulfonic acid (weighed as a monohydrate) was added and mixed to obtain a colorless and clear viscous liquid. When 1.25 g of silica gel (manufactured by Kanto Chemical Co., Inc., spherical neutral silica gel, particle size distribution 63 to 200 μm) was added to this viscous liquid and stirred, a white slurry was obtained. For coloring this slurry, 1 g of a 1% aqueous solution of Blue No. 1 (Brilliant Blue FCF) was added.

  As a fiber material, 5.5 m of acrylic (polyacrylonitrile) string (made in Edo, 3 mm in diameter) was prepared, and a metal frame (25 cm long, 25 cm long, made of stainless steel (SUS304) round pipe with an outer diameter of 13 mm and a wall thickness of 1 mm. The above slurry was applied. Then, when the heat curing process was performed for 30 minutes in a 120 degreeC thermostat, it became a diameter of about 5 mm. By cutting this into 18 cm lengths, 20 rod-shaped drug volatilization bodies (Invention 1) were obtained.

[Example 2] Preparation example 2 of chemical volatilization body
20 chemical volatilizers with a diameter of about 5 mm and a length of 18 cm (invention product) in the same manner as in Example 1 except that a cotton string (3 mm in diameter) is used instead of an acrylic string. 2) was obtained.

[Example 3] Preparation example 3 of chemical volatilization body
In place of the 2% Metrose 65SH-4000 aqueous solution of Example 1, a 4% polyvinyl alcohol “polyvinyl alcohol 1500 (Pure Chemical)” aqueous solution was used in the same manner as in Example 1, but the diameter was about 5 mm and long. Twenty 18 cm chemical volatilizers (Invention 3) were obtained.

[Example 4] Preparation example 4 of drug volatilizer
The prepolymer slurry prepared in the same manner as in Example 1 was applied to a cotton string (gold hammered, 3 mm in diameter) instead of an acrylic string, and then cut into a length of 26 cm before heat-curing treatment, and then released. One end of the rod-shaped main body was bent into an 8-shaped curve on one end of the rod-shaped body on an 8-mesh wire mesh thinly coated with liquid paraffin as an agent. Next, it was cured in a state where the shaped shape was maintained by heat curing treatment according to the method of Example 1, and was formed into a curved shape having a diameter of about 5 mm, a straight portion of 18 cm, and a tip portion of 8 in shape. Twenty drug volatilizers (Invention 4) were obtained.

[Example 5] Preparation example 5 of a chemical volatilizer
15.7 g of 40% glyoxal aqueous solution and 30 g of methyl cellosolve are added to 5.1 g of melamine and mixed with stirring. 4 g of 10% formic acid aqueous solution was added to this suspension, heated in a 700 W microwave reactor to obtain a uniform liquid, and then concentrated under reduced pressure at a water bath temperature of 50 ° C. to give a pale yellow melamine / glyoxal resin prepolymer. A liquid (solid content 50%) is obtained. In the same manner as in Example 1 with respect to 8 g of this prepolymer solution, 4 g of a 2% aqueous solution of Metrolose 60SH-4000 as a thickener and a 30 wt% paratoluenesulfonic acid (monohydrate) aqueous solution as a curing agent were added. .4 g was added and mixed, and 1 g of silica gel (manufactured by Kanto Chemical Co., Inc., spherical neutral silica gel, particle size distribution 63 to 200 μm) was added to obtain a white slurry. This slurry was applied to a cotton string (made in Edo, 3 millimeters in diameter) and thermally cured to obtain 20 pale yellow chemical volatilizers (Invention 5) having a diameter of about 5 mm and a length of 18 cm.

[Example 6] Preparation example 6 of chemical volatilization body
60 g of urea was added to 120 g of 37% formaldehyde aqueous solution, pH was adjusted to 8.5 with 10% sodium hydroxide aqueous solution, stirred at 85 ° C. for 3 hours, and then concentrated under reduced pressure at 50 ° C. to give a prepolymer solution having a solid content of 50%. To be obtained as a colorless viscous liquid. In the same manner as in Example 3 above, 8 g of this prepolymer liquid was mixed with a thickener, a curing agent, and silica gel, applied to an acrylic string (Edo strike, 3 mm in diameter), and thermally cured to obtain a diameter. 20 white drug volatilization bodies (invention 6) having a length of about 5 mm and a length of 18 cm were obtained.

[Comparative Example 1] Drug Volatilizer Using Rattan Commercially available rattan (diameter: about 5 mm, Diffuser Rattan Sticks, Holla Fragrance) was cut to a length of 18 cm to obtain 20 drug volatilizers (Comparative Product 1).

Comparative Example 2 Drug Volatilizer Using Commercial Cotton Absorbent Core A drug volatilizer (Comparative Product 2) which is a commercial cotton hydrophilic liquid absorbent core having a thickness of 1.5 cm, a width of 4 cm, and a length of 18 cm was prepared. .

[Vaporization test of aromatic liquid]
Table 1 shows the composition of the fragrance used in the evaluation. This fragrance has a rose-like fragrance, and contains a highly volatile top note component to a less volatile last note component. According to the composition of Table 2, this perfume is fragranced to an artificial isoparaffin mixture is an oily aromatic liquid, and according to Table 3, a fragrance is added to a hydrous alcohol aqueous solution containing a surfactant for solubilization. It is a fragrance liquid. Both the oily fragrance liquid and the aqueous fragrance liquid are fluid and uniform and transparent liquids.

  100 g of an oily and aqueous fragrance liquid prepared according to the composition of Tables 1 to 3 was filled into a glass container with a screw cap of 10 cm in height and 6 cm in diameter.

  The lid of the container is made of resin, and a pilot hole is drilled with a hand drill with a 1 mm diameter drill blade, and then the drug volatilizers of Examples 1 to 6 are formed using an electric drill with a 5 mm diameter drill blade. Just expanded to a size that can be passed. By providing a hole with a diameter of 5.5 to 6 mm in the lid, when the drug volatilizer is inserted into this hole, the inside of the glass container filled with the aromatic liquid solution becomes a semi-sealed state, and the upper part due to the liquid level change accompanying volatilization This is to suppress the change in the exposed area.

  Prepare glass containers with 10 such holes for the number of chemical volatilizers to be volatilized, insert 10 chemical volatilizers into each glass container, attach the lower end to the bottom of the container, and add the aromatic liquid. The amount of volatilization was observed over time, and the aroma characteristics of the perfume were sensorially evaluated (volatilization test). Therefore, the degree of volatilization was shown by the remaining amount of the aromatic liquid in the glass container accompanying the volatilization of the aromatic liquid by 10 chemical volatilization bodies. In the case of the comparative product 2, a 1.5 cm × 4 cm rectangular hole was provided in the lid of the glass container, and the chemical volatilization body of the comparative product 2 was attached thereto, and a volatilization test was performed.

[Results of volatilization test using oily aromatic liquid]
Table 5 shows the results of volatilization tests using the oily aromatic liquids for Inventions 1 to 5. However, since the chemical volatilizer absorbs the chemical solution on the day when the volatilization test was started, but no volatilization occurred, the number of days from the day after the volatilization started and the remaining amount of the chemical solution in the glass container are listed in Table 5. Table 6 shows the evaluation results of aroma changes by 10 well-trained panels.

  As can be seen from this result, in the case of Invention 1, the remaining amount was 63% on the 10th day and 5% on the 40th day, and the remaining amount became zero on the 45th day. In the case of Invention 2, the remaining amount was 72% on the 10th day and 11% on the 40th day, and the remaining amount became zero on the 52nd day. In the case of Invention 3, the remaining amount was 60% on the 10th day and 11% on the 30th day, and the remaining amount became zero on the 35th day. In the case of Invention 4, the remaining amount was 48% on the 10th day and 9% on the 20th day, and the remaining amount became zero on the 24th day. In the case of Invention 5, the remaining amount was 71% on the 10th day and 10% on the 40th day, and the remaining amount became zero on the 50th day. In the case of Invention 6, the remaining amount was 68% on the 10th day and 8% on the 40th day, and the remaining amount became zero on the 43rd day. Moreover, as shown in Table 6, there was almost no change of the quality and intensity | strength of volatilization which all the invention products 1-6 volatilize during the period of a volatilization test, and it was able to maintain favorable and uniform volatilization. Furthermore, the applied thermosetting resin-silica gel dispersion was colored vivid blue, and the decorative effect was also good visually.

  On the other hand, the comparative product 1 had a larger residual amount than the inventive products 1 to 6, that is, the volatility was poor, the top aroma was weak on the 40th day, and the aroma balance was broken.

  Moreover, it was confirmed that the comparative product 2 cannot absorb an oily aromatic liquid, is not volatilized, and is unsuitable as a chemical volatilization body.

[Results of volatilization test using aqueous fragrance solution]
Next, Tables 7 and 8 show the results of the volatilization test using the aqueous fragrance liquid and the change in fragrance for Inventions 1 to 4.

  As can be seen from this result, in the case of Invention 1, the remaining amount is 65% on the 10th day and 12% on the 50th day, and on the 66th day, the fragrance components in the glass container are almost completely lost due to volatilization. Thus, 4.5% of the remaining amount was 1% when 3.5% of the surfactant part was subtracted. In the case of Invention 2, the remaining amount is 70% on the 10th day and 8% on the 50th day. On the 56th day, the fragrance components in the glass container are almost completely lost due to volatilization. When 4.5% of the surfactant part was subtracted from 4.5%, it was 1% as in the case of Invention 1. In the case of Invention 3, the remaining amount is 62% on the 10th day and 7% on the 50th day, and on the 56th day, the fragrance component in the glass container has almost disappeared due to volatilization. When 4.5% of the surfactant part was subtracted from 4.5%, it was 1% as in the case of Invention 1. In the case of Invention 4, the remaining amount is 52% on the 10th day and 16% on the 20th day, and on the 24th day, the fragrance component in the glass container has almost disappeared due to volatilization. When 4.5% of the surfactant part was subtracted from 4.5%, it was 1% as in the case of Invention 1.

  Inventive products 1 to 3 have a good fragrance balance from the top note to the last note on the 40th day, and an inventive product 4 has a substantially good fragrance balance from the top note to the last note on the 20th day. In all of 1-4, during the period of the volatilization test, there was little change in the quality and strength of the fragrance, and good and uniform volatilization could be maintained.

  On the other hand, it was confirmed that the comparative product 1 has a very large remaining amount as compared with the inventive products 1 to 4, that is, the volatility is very poor and is unsuitable as a chemical volatilization body. Further, the fragrance on the 40th day was weak at the top, and the fragrance balance was broken.

  Further, the comparative product 2 had a larger remaining amount than the inventive products 1 to 4, and the remaining amount on the 50th day was 20% in order to cause clogging, and no further volatilization occurred. On the 10th day, the aroma of the top and middle was weak and the aroma balance was broken.

[Volatilization test of insect repellent fragrance solution]
A substance having an insecticidal action and an insect repellent (insect repellent) action can be used alone or in combination with a fragrance. An insect repellent fragrance solution having the composition shown in Table 4 was prepared, and the volatilization test of the insect repellent fragrance solution was carried out by the method of volatilization test of the fragrance solution using the chemical volatilization body shown in Example 1. The results are shown in Table 9.

  As can be seen from this result, in the case of Invention 1, the remaining amount was 70% on the 10th day and 6% on the 40th day, and the remaining amount became zero on the 43rd day. In the case of Invention 2, the remaining amount was 63% on the 10th day and 5% on the 40th day, and the remaining amount became zero on the 42nd day.

  In addition, during the period of the volatilization test, Inventions 1 and 2 were able to maintain good and uniform volatilization with almost no change in the quality and strength of the aroma to be volatilized. On the other hand, when insecticidal components such as empentrin and diet were analyzed by gas chromatography, it was confirmed that good and uniform volatilization was maintained throughout the volatilization test.

[Example 7] Preparation example 7 of chemical volatilizer
A chemical volatilizer having a diameter of about 5 mm and a length of 18 cm in the same manner as in Example 1 except that 1 g of 1% aqueous solution of green 401 is used instead of 1 g of 1% aqueous solution of blue 1 (brilliant blue FCF). 20 pieces (invention product 7) were obtained.

[Example 8] Preparation example 8 of chemical volatilization body
A chemical volatilizer having a diameter of about 5 mm and a length of 18 cm in the same manner as in Example 1 except that 0.3 g of activated carbon “purified white rabbit” is used instead of 1 g of 1% aqueous solution of Blue No. 1 (Brilliant Blue FCF). 20 pieces (Invention 8) were obtained.

[Example 9] Preparation example 9 of chemical volatilization body
30 well-ripe commercially available chestnut brown potatoes were placed in an alumite pan, 10 liters of tap water was added, and the mixture was heated and extracted at a temperature of 60 to 80 ° C. for 3 hours to obtain a brown pigment extract. . This was continued to be heated to 100 ml at normal pressure, and the water was distilled off to obtain a syrupy black brown liquid. A diameter of about 5 mm and a length of 18 cm were the same as in Example 1 except that 1 g of 1% aqueous solution of green 401 was used instead of 1 g of 1% aqueous solution of blue No. 1 (Brilliant Blue FCF) of Example 1. 20 chemical volatilizers (Invention 9) were obtained.

  Appearances of Invention 1 and Inventions 7-9 are shown in Table 10.

  Invention 1 and Inventions 7 to 9 have the appearances shown in Table 10 and are both modern and impressive colors that can be used in all situations such as living and business spaces such as Japanese-style houses and Western-style houses. Had an appearance. Therefore, it was confirmed that a commercially available synthetic pigment and natural pigment can be used, and a high value-added chemical volatilizer having a color tone variation can be obtained by adding the pigment.

  In addition, although the influence on preparation of a chemical volatilization body by dye addition was not seen, the volatilization test by an oil-based and aqueous | water-based aromatic liquid solution was done using the chemical volatilization body of the obtained invention products 7-9, all were invention. There was no difference from Product 1 and the result was good.

Claims (4)

After mixing the thickener aqueous solution with the thermosetting resin prepolymer aqueous solution, the curing agent is mixed and dissolved to obtain the thermosetting resin polymer-thickener solution, and the silica gel is mixed and dispersed in the solution, and the thermosetting resin- A fiber structure for chemical volatilization obtained by preparing a silica gel dispersion, applying the dispersion to a twisted yarn, and heating and curing at 100 to 150 ° C.   The fiber structure for chemical volatilization according to claim 1, wherein the thermosetting resin prepolymer is a melamine resin prepolymer.   The fiber structure for chemical volatilization according to claim 1 or 2, wherein the thickener is a water-soluble cellulose ether.   The fiber structure for chemical volatilization according to any one of claims 1 to 3, wherein a dye or a pigment is further added to and mixed with the thermosetting resin-silica gel dispersion.