JP2009068145A - Method for modifying fiber or fiber product and apparatus therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for modifying fibers or a fiber product, by which the dyeability or the like of the fibers or a fiber product containing cellulosic fibers or animal fibers can safely be modified in a simple operation at room temperature to save energy, and to provide an apparatus therefor. <P>SOLUTION: This method for modifying the fibers or fiber product containing the cellulosic fibers or animal fibers includes irradiating the fibers or fiber product containing the cellulosic fibers or animal fibers with light in the presence of a compound producing a radical by the irradiation with light and a compound having a carbon-carbon double bond in which an electron-attracting group is directly bound to carbon atoms having the double bond, or the method for modifying the fibers or fiber product containing the cellulosic fibers or animal fibers includes irradiating the fibers or fiber product containing the cellulosic fibers or animal fibers with light in the presence of a compound producing a radical by the irradiation with light and then being treated with a compound having a carbon-carbon double bond in which an electron-attracting group is directly bound to carbon atoms having the double bond. The compound producing the radical by the irradiation with light is preferably a peroxide. The method also includes an embodiment that the fibers or fiber product is treated with a reducing agent after the irradiation with light. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a method for modifying a fiber or a fiber product including cellulosic fibers or animal fibers, and an apparatus for carrying out the method.

  Currently, blended fibers including cellulosic fibers or animal fibers are widely used in large quantities as raw materials for clothing and the like. These fiber products are generally modified to impart performances such as dyeing processability that are lacking in the raw materials themselves (see, for example, Non-Patent Documents 1, 2, and 3).

  However, since many of these reforms are performed by high-temperature treatment, it is a multi-consumption type process that requires a large amount of energy, which involves the release of a large amount of carbon dioxide. There was a problem that it took a long time for the temperature to stabilize at a high temperature, and wasteful energy was required during that time.

  Also, these modification methods often physically apply functional substances such as various resins, salts, metals, organic compounds, etc., so that the functional substances may become fibers or fibers after long-term use or washing. There was also a problem that it was detached from the product and the effect was not fully exhibited.

  For this reason, it is also carried out by modifying and imparting a function by a chemical reaction to the fiber, but this chemical reaction is usually carried out by physical means such as high temperature treatment or plasma or electron beam, and in any case This is an energy intensive process, and there are also disadvantages that special conditions such as large equipment and high vacuum are sometimes required.

And, in many cases, the modification of a fiber product containing or containing a cellulosic fiber or animal fiber, or a fiber product made of the fiber or the fiber containing the fiber, carried out by a chemical reaction used in this case. There is also a problem that the function is gradually lost due to washing or the like because of loss.
Kazuo Shiozawa, Dyeing Finishing Technology, Jinshokan, 1991, 3.5, 3.7-3.9, Section 3.12, and Chapters 6 and 7 Japan Society for the Promotion of Science, 120th Committee on Textile / Polymer Functional Processing, Gakushinban Dyeing Functional Processing Overview, Color Dyeing Company, 2003, Chapters 7, 8 Edited by Textile Society, Basic knowledge of gentle fibers, published by Nikkan Kogyo Shimbun, 2004, Chapter 9

  The present invention has been made in order to overcome such problems, and is a fiber or fiber that is an energy-saving type and contains cellulosic fibers or animal fibers safely at room temperature and with a simple operation. It is an object of the present invention to provide a method and an apparatus for facilitating product modification.

  As a result of diligent studies to solve the problems of the prior art, the present inventors have found that a fiber or a fiber product containing cellulosic fibers or animal fibers contains a compound that generates radicals by light irradiation and an electron-withdrawing group. It has been found that a method of irradiating light in the presence of a compound having a carbon-carbon double bond directly bonded to a carbon-carbon double bond is very effective, and the present invention has been made based on this finding.

That is, according to this application, the following invention is provided.
<1> Cellulose fibers (aspects) in the presence of a compound that generates radicals upon light irradiation and a compound having a carbon-carbon double bond in which an electron-withdrawing group is directly bonded to a carbon atom that forms a carbon-carbon double bond. A fiber or textile product characterized by irradiating light to a fiber or textile product containing animal fibers) or a fiber product containing a ratio of 300 or less and an abundance ratio of 60% or more of cellulosic fibers. Quality method.
<2> Fibers including cellulosic fibers (excluding cellulosic fibers having an aspect ratio of 300 or less and an abundance ratio of 60% or more) or animal fibers in the presence of a compound that generates radicals upon irradiation with light. Alternatively, the fiber or fiber product is treated with the compound having a carbon-carbon double bond after being irradiated with light.
<3> A compound that generates radicals by light irradiation is applied to only a part of a fiber or a fiber product including cellulosic fibers or animal fibers, and is irradiated with light <1> or <2> Reforming method.
<4> The reforming method according to any one of <1> to <3>, wherein the compound that generates radicals by light irradiation is a peroxide.
<5> The modification method according to any one of <1> to <4>, wherein light irradiation is performed through a light beam or a mask.
<6> A method for modifying a fiber and a fiber product, wherein the fiber and the fiber product are treated with a reducing agent after the light irradiation according to any one of the above <1> to <5>.
<7> A reforming apparatus for performing the method according to any one of <1> and <3> to <6>, wherein the compound generates a radical by light irradiation together with a light source and the carbon-carbon double bond. An apparatus for modifying a fiber or fiber product comprising means for irradiating the fiber or fiber product with light in the presence of a compound having cellulosic fibers or animal fibers.
<8> A reformer for performing any one of the above methods <2> to <6>, wherein cellulosic fibers or animal fibers are combined with a light source in the presence of a compound that generates radicals by light irradiation. An apparatus for modifying a fiber or a textile product, comprising: means for irradiating the fiber or textile product with light; and means for treating the compound having a carbon-carbon double bond after the light irradiation.

  According to the method and apparatus of the present invention, modification of fibers or textile products including cellulosic fibers or animal fibers can be performed safely at room temperature using a simple apparatus, and the fibers and textile products are also described above. It is possible to realize a new function and an improved dyeability by expanding the modification range. In addition, the method and apparatus of the present invention greatly contributes to resource saving, energy saving, and environmental load reduction technologies necessary for sustainable social development.

  The fiber containing cellulosic fibers or animal fibers referred to in the present invention means a fiber composed of a plurality of fibers other than the individual single fibers in addition to the cellulosic fibers alone or the animal fibers alone. Here, fibers other than cellulosic fibers or animal fibers refer to synthetic fibers such as polyester and nylon, semi-synthetic fibers such as acetate, and the like.

  Examples of cellulosic fibers that are the subject of the present invention include plant fibers and regenerated fibers. Examples of plant fibers include cotton, hemp, bamboo fibers, nanofibers obtained from bacteria and other raw materials, and examples of regenerated fibers include viscose rayon, polynosic, sufu, tencel, cupra, etc. Cellulosic regenerated fibers are also targeted. In addition, examples of animal fibers that are the subject of the present invention include silk and wool. In addition to these, any fibers derived from animals can be used.

  As fiber products containing cellulosic fibers or animal fibers, in addition to products mainly made of cellulosic fibers or animal fibers, composites with other materials, etc. Any of these products may be used when the product made from the above-mentioned products contains fibers derived from cellulosic fibers or animal fibers.

  In the present invention, the modification of fibers or fiber products containing cellulosic fibers or animal fibers refers to new functions, performances, properties, etc. that are different from the functions, performances, properties, etc. inherent to the fibers and fiber products. It means that it is given, and if a new function, performance, property, etc. are given, it may have the function, performance, property, etc. originally possessed.

  Specific modifications of fibers and textile products include dyeability, darkness, deep color, texture, shrinkage resistance, hydrophilicity, water repellency, waterproofness, lipophilicity, shape memory, conductivity, wrinkles Processability, wrinkle resistance, flame retardancy, resin processability, insect resistance, mold prevention, deodorization, processability, weight loss processing, grafting, cross-linking, SR, electromagnetic wave shielding, plating, aromatic, Examples include, but are not limited to, these functions, properties, etc., and new functions, performances, properties, etc. that are different from the functions, performances, properties, etc. inherent to the fibers and fiber products. What is necessary is just to give.

  The irradiation light used in the present invention may be selected in consideration of the function, performance, properties, efficiency for application, etc. provided by the purpose, but in general, it is 120 to 800 nm, preferably 190. It is desirable to use ultraviolet light or visible light (hereinafter also referred to as ultraviolet visible light) of ˜600 nm. The UV-visible light source is not particularly limited and may be continuous light or pulsed light, and ordinary light sources such as low-pressure mercury lamp, high-pressure mercury lamp, xenon lamp, black light, various LEDs, and various excimer lamps can be used. It is not limited and a conventionally well-known light source can be used suitably. Although there is no restriction | limiting in particular in irradiation light intensity, as a continuous light source of ultraviolet visible light, a light source of 0.1 mW-10 kW is suitable.

  Various lasers can be used as the light source, and the laser light may be pulsed light or continuous irradiation light, but excimer laser (ArF excimer laser, KrF excimer laser, XeCl excimer laser, XeF excimer laser, etc.), argon ion laser, krypton The second and third harmonics of an ion laser and a YAG laser can be used, but the present invention is not limited to these, and a conventionally known laser can be used as appropriate.

  Although there is no special restriction | limiting as an ultraviolet-visible laser beam, It is desirable to use a wavelength about 140-800 nm, Preferably about 190-600 nm.

  Although there is no restriction | limiting in particular also in laser irradiation light intensity | strength, 0.1 mJ / pulse-1 kJ / pulse is suitable for pulsed light, and 0.1 mW-10 kW light source is suitable for continuous light.

  A light beam can be used for light irradiation. As such a light beam, use of various lasers is suitable. However, if an ordinary light source can be used to irradiate light in a specific direction using various optical systems such as lenses and mirrors, the beams are parallel. Even if it is not a light beam, it can be used. By moving these light beams by using an optical system such as various mirrors, it is possible to irradiate a fiber or a fiber product including a target cellulosic fiber or animal fiber.

  Moreover, light irradiation can also be performed through a mask. When light irradiation is performed using a mask, the mask may be placed at any position between a light source and a target fiber or fiber product including cellulosic fibers or animal fibers. Any of the light sources can be used. In addition, an optical system such as various lenses and mirrors is installed between the light source and the mask and / or between the mask and the target cellulosic fiber or animal fiber, or between the fiber or the fiber product, and the mask pattern. Can be reduced, enlarged or deformed.

  Also, in normal light irradiation, light irradiation with a light beam, and light irradiation using a mask, the intensity of the light in the light irradiation surface is enhanced by using the characteristics of the light source and / or optical systems such as various lenses and mirrors. It is also possible to add gradation to the degree of modification of fibers or fiber products including cellulosic fibers or animal fibers.

  The light irradiation time is appropriately determined by considering the type of cloth, thickness, form, type and concentration of solution, and the type and intensity of irradiated ultraviolet-visible light. When using various lasers, it is usually sufficient to use 1 μsec to 30 minutes for a continuous laser and usually 1 to 1000 pulses for a pulsed laser. Light irradiation may be performed for a time necessary for the occurrence of the above.

  Examples of the compound that generates radicals upon irradiation with light used in the present invention include various peroxides and various photopolymerization initiators, and hydrogen peroxide and peracids are particularly preferable. Instead, it is sufficient that the compound generates radicals, radical cations, or radical anions by light irradiation alone or by interaction with other compounds.

  The compound having a carbon-carbon double bond in which an electron-withdrawing group used in the present invention is directly bonded to a carbon atom that forms a carbon-carbon double bond includes an aromatic compound, and modification of fibers and fiber products by light irradiation. As long as it does not significantly inhibit the above, a compound having a carbon-carbon double bond in which a conventionally known electron-withdrawing group is bonded to a carbon atom directly forming a carbon-carbon double bond can be used. Further, a compound having a plurality of carbon-carbon double bonds in the molecule, a compound in which any of the compounds having the carbon-carbon double bond is a polymer compound, and a site having the carbon-carbon double bond being a polymer A compound or the like grafted to the compound can also be used as the compound having the carbon-carbon double bond. In addition, any of these compounds having a carbon-carbon double bond may be used alone, but a mixed system composed of a compound having a plurality of the carbon-carbon double bonds may also be used.

  There is no limitation on the number of substituents and the type of substituents of the carbon-carbon double bond to which the electron-withdrawing group is directly bonded, and any other substituents such as hydrogen, electron-donating group, and electron-withdrawing group can be used. A hydrocarbon group having characteristics, a hydrocarbon group having various functional groups, various functional groups, and the like can be used as appropriate.

Examples of the electron-withdrawing group include NR ₃ ⁺ , SR ₂ ⁺ , NH ₃ ⁺ , NO ₂ , SO ₂ R, CN, SO ₂ Ar, COOH, F, Cl, Br, I, OAr, COOR, OR, COR, SH, SR, OH, Ar, alkyne, alkene (where Ar represents an aromatic group) and the like can be mentioned (see Non-Patent Document 4), but are not limited thereto.
J. March, Advanced Organic Chemistry, 4th Ed, John Wiley & Sons, New York, 1992, pp. 17-19 Carbon-carbon with an electron-withdrawing group directly attached to a carbon atom forming a carbon-carbon double bond Examples of the compound having a double bond include carboxylic acids conjugated with carbon-carbon double bonds such as acrylic acid and methacrylic acid, and carbon-carbon double bonds such as various esters, amides, acrylonitrile, and fumaronitrile of these carboxylic acids. Various alkyl enol ethers such as nitriles conjugated with vinyl, hexyl ether, carbonyl compounds conjugated with carbon-carbon double bonds such as methyl vinyl ketone, vitamin K and vitamin C, and carbon-carbon doubles such as nitroethylene Nitroolefins conjugated with bonds, sulfonic acids conjugated with carbon-carbon double bonds such as vinyl sulfonic acid, and various esters thereof Steroids such as testosterone, styrene, cyclohexadiene, butadiene, hexatriene, various carotenes, compounds having conjugated carbon-carbon double bonds such as vitamin A, polynuclear aromatic compounds such as fullerene and anthracene, hinokitiol, etc. Examples include, but are not limited to, those in which a plurality of electron-withdrawing groups are conjugated with a carbon-carbon double bond, etc. Carbon-carbon in which an electron-withdrawing group is directly bonded to the carbon-carbon double bond Any compound having a double bond may be used. Examples of the compound having a plurality of carbon-carbon double bonds in the molecule include arachidonic acid and the like mentioned above, a compound in which the compound having the carbon-carbon double bond is a polymer compound, Examples of the compound in which a site having a carbon-carbon double bond is grafted to a polymer compound include polyacrylic acid ester and polymethacrylic acid ester of polyvinyl alcohol, but are not limited thereto. A compound having a plurality of carbon double bonds in the molecule, a compound in which the compound having the carbon-carbon double bond is a polymer compound, a compound in which a site having the carbon-carbon double bond is grafted to the polymer compound, etc. If it is.

  Further, in the present invention, fibers and fiber products after light irradiation are used for stabilization of new functions, performances, properties, etc. imparted by the modification, and for further modifications of the functions, performances, properties, etc. It is also possible to adopt a method of treating with a reducing agent.

The reducing agent is not particularly limited and any conventionally known reducing agent can be used. Examples of such reducing agents include sodium thiosulfate, hydrosulfite, sodium borohydride, Rongalite, sodium sulfite, sodium hydrogen sulfite, hydrazine and the like, or organic compounds such as vitamin C having a reducing property, various aldehydes, formic acid, etc. However, the present invention is not limited to these, and any material having reducibility may be used. In addition, any of these reducing agents may be used alone, but a mixture of a plurality of reducing agents can also be used. The compound that generates radicals upon irradiation with light of the present invention and the electron-withdrawing group are directly carbon- Regarding the action of the compound having a carbon-carbon double bond bonded to the carbon atom forming the carbon double bond on the fiber or the fiber product, the above-mentioned action is performed depending on the radical (radical, radical cation, radical anion) species generated by light irradiation. It is considered that the modification occurs when radicals are generated on the surface of the fiber or the fiber product, and the radical species thus generated react with the carbon-carbon double bond to form a bond. Alternatively, polymerization of the compound having a carbon-carbon double bond occurs on the fiber or fiber product due to radical species generated by light irradiation, and the resulting polymer compound is physically added to the fiber or fiber product. It is also conceivable that modification occurs due to adhesion. Furthermore, a radical is generated in the fiber or the fiber product by the radical species generated by light irradiation, and the carbon in the polymer of the compound having the carbon-carbon double bond generated in the fiber or the fiber product is generated. It is considered that modification by bonding a polymer of a compound having a carbon-carbon double bond to the fiber or fiber product by a radical reaction is caused by the reaction with the carbon double bond. It is organically known that such an addition reaction of a radical to a carbon-carbon double bond occurs widely for a carbon-carbon double bond having an electron-withdrawing group (see, for example, Non-Patent Document 5). ). In addition, it is reasonable to consider that the same radical reaction occurs not only in a compound having one carbon-carbon double bond in the molecule but also in a compound having a plurality of carbon-carbon double bonds in the molecule.

However, in the method of the present invention, regardless of the estimated reaction mechanism described above, in the presence of a compound that generates radicals by light irradiation, fibers or fiber products including cellulosic fibers or animal fibers are irradiated with light. Of course, it is sufficient that the reforming occurs.
Hideo Togo, Organic Free Radical Chemistry, Kodansha Scientific, published in 2001 There are no particular restrictions on the embodiment of the present invention, but preferred embodiments include fibers containing cellulosic fibers or animal fibers. Or, fiber products are irradiated with light by immersing or suspending them in a chemical solution containing a compound that generates radicals by light irradiation and a compound having a carbon-carbon double bond in which an electron-withdrawing group is directly bonded to the carbon-carbon double bond. Or a method of irradiating the chemical solution with light, or a method of irradiating the chemical solution with the above-mentioned fibers or fiber products by applying, spraying, etc., but is not limited thereto. It is not a thing.

  In particular, when applying or spraying the chemical liquid onto the fiber or fiber product, not only applying the chemical liquid to the entire fiber or fiber product using an air brush or brushes, but also part of the object It is also possible to cause partial reforming by applying to, and by this partial reforming, it is possible to cause reforming having a form such as a character, a chart or the like. Moreover, these light irradiation can be performed in the state which the said fiber or textiles left still, or the state which is moving.

  Instead of simultaneously treating with a chemical solution containing a compound that generates radicals by light irradiation and a compound having a carbon-carbon double bond in which an electron-withdrawing group is directly bonded to a carbon atom that forms a carbon-carbon double bond, light irradiation is performed. The operation of irradiating the fiber or fiber product treated with the compound that generates radicals by the above and the operation of treating the fiber or fiber product treated in this way with the compound having the carbon-carbon double bond are performed separately. It is also possible to use the technique used in the above simultaneous processing in each operation.

  A compound that generates a radical by light irradiation and a compound having a carbon-carbon double bond in which an electron-withdrawing group is directly bonded to a carbon atom that forms a carbon-carbon double bond may be a solution thereof. The solvent is not particularly limited as long as it does not substantially absorb irradiation light and does not significantly inhibit modification of fibers and fiber products by light irradiation, and a conventionally known solvent can be appropriately used.

  Examples of such solvents include polar solvents such as acetonitrile, dimethyl sulfoxide, and dimethylformamide, aliphatic hydrocarbons such as decane, dodecane, and tetradecane, and aromatic hydrocarbons such as toluene and xylene (within the molecule). Non-polar solvents such as aromatic hydrocarbons having aliphatic groups), protic solvents such as propylamine, ethylenediamine, various carboxylic acids, various polycarboxylic acids, and the like, but are not limited thereto. It is not a thing.

  Any one of these solvents may be used alone, but a mixed solvent composed of a plurality of solvents may be used.

  In addition, a compound having a carbon-carbon double bond in which a compound that generates radicals by light irradiation and an electron-withdrawing group are directly bonded to a carbon atom that forms a carbon-carbon double bond, or a fiber and a fiber product of the solution In order to increase the permeability of the surfactant, a surfactant may be allowed to coexist.

  As the surfactant, any conventionally known surfactant can be used as long as it does not significantly inhibit the modification of fibers and fiber products by light irradiation. Examples of such surfactants include anionic surfactants such as higher fatty acid alkali salts, alkyl sulfates, alkyl sulfonates, alkyl aryl sulfonates, sulfosuccinate esters, higher amine halogenates, halogens, and the like. Illustrative examples include cationic surfactants such as alkyl pyridinium fluoride and quaternary ammonium salts, nonionic surfactants such as polyethylene glycol alkyl ethers, polyethylene glycol fatty acid esters, sorbitan fatty acid esters, and fatty acid monoglycerides, and amphoteric surfactants such as amino acids. Is done.

  Further, any of these surfactants may be used alone, but a mixture of a plurality of surfactants can also be used.

  A solution of these surfactants can also be used. Examples of such a solvent include water, alcohols, chain or cyclic hydrocarbons, single solvents such as ethers, and mixed solvents thereof. It is done. The surfactant content is not particularly limited as long as it is equal to or lower than the saturation concentration of the surfactant with respect to the solvent, but is preferably 0.0001 to 50% by weight, more preferably 0.01 to 10% by weight, based on the solvent. Is appropriate.

  Next, some typical reforming apparatuses for carrying out the method of the present invention are exemplified below, but the present apparatus is not limited to these.

  The apparatus shown in FIG. 1 is an example of a reforming apparatus that is preferably used for modifying fibers or fiber products containing natural fibers in the form of threads or fabrics. The apparatus of FIG. 1 has a carbon-carbon double bond directly formed on a fiber or fiber product including cellulosic fibers or animal fiber fibers, and a compound that generates radicals upon irradiation with light in a chemical solution tank and an electron-withdrawing group. A compound having a carbon-carbon double bond bonded to the carbon atom to be formed is imparted, and the fiber or the entire fiber product is irradiated with light, and then an excessive chemical solution or the like is removed in a washing tank.

  According to this apparatus, the fiber or the fiber product can be immersed in a chemical solution and irradiated to the place where it is pulled up.

  The apparatus shown in FIG. 2 is another example of a reforming apparatus that is preferably used for modifying fibers and fiber products including cellulosic fibers or animal fibers in the form of threads or fabrics. In the apparatus of FIG. 2, a compound that generates radicals by light irradiation in a chemical solution tank and an electron-withdrawing group directly forms a carbon-carbon double bond on the entire fiber or fiber product including cellulosic fibers or animal fibers. A compound having a carbon-carbon double bond bonded to a carbon atom is applied, and a light beam is used to irradiate a part of the fiber or fiber product, and then an excess chemical solution is removed in a washing tank. Then, it is treated with a reducing agent in a reduction treatment tank.

  According to this device, the above-mentioned fiber or textile product is immersed in a chemical solution, and light irradiation is performed by moving the light beam using an optical system at the pulled-up position, so that modification with an arbitrary pattern is possible at a required location. It becomes. By treating with a reducing agent, unstable substances such as carbonyl groups and peroxides generated during light irradiation can be converted into stable compounds such as alcohol.

  The apparatus shown in FIG. 3 is still another example of a reforming apparatus that is preferably used for modifying fibers and fiber products, including cellulosic fibers or animal fibers in the form of threads or fabrics. The apparatus of FIG. 3 is a chemical solution filled with a compound that generates radicals upon light irradiation and a compound having a carbon-carbon double bond in which an electron-withdrawing group is directly bonded to a carbon atom that forms a carbon-carbon double bond. Fibers or fiber products containing cellulosic fibers or animal fibers are introduced into the tank, and light irradiation is performed while stirring the chemical solution and the fibers or fiber products.

  According to this apparatus, it is easy to modify the above-mentioned small fiber or fiber product, which is difficult to handle, by immersing the fiber or fiber product in a chemical solution and performing light irradiation while stirring while injecting the chemical solution as necessary. And

  The apparatus shown in FIG. 4 is an example of a reforming apparatus that is preferably used for modifying fibers and textile products including woven or molded cellulosic fibers or animal fibers. The apparatus of FIG. 4 partially imparts a compound that generates radicals by light irradiation by spraying or the like to a part of the fiber or fiber product including cellulosic fiber or animal fiber, and the fiber or fiber product by a light beam. A portion of the substrate is irradiated with light, and then the excess chemical solution is removed in the washing tank, and then in the chemical solution tank, the electron-withdrawing group is directly bonded to the carbon atom forming the carbon-carbon double bond. Treatment with a compound having a carbon double bond is performed.

  According to this apparatus, in order to perform light irradiation after spraying the above-mentioned fiber or fiber product targeted for a chemical solution, the above-mentioned function is given by adding a movable function such as a robot arm to spraying a compound that generates radicals by light irradiation. A chemical solution can be applied to a necessary place regardless of the form of the fiber or the fiber product, and by controlling the three-dimensional light irradiation, the necessary place can be obtained regardless of the form of the fiber or the fiber product. Modification is possible.

Next, based on an Example, this invention is demonstrated still in detail. Of course, the present invention is not limited by the following examples.
Example 1
A cotton cloth is impregnated with an aqueous solution containing 3 mol / L acrylic acid and 5% hydrogen peroxide, and a 15 W low-pressure mercury lamp is irradiated for 60 minutes to the pulled-up place, followed by water, methanol, water, neutral detergent, and water in this order. After washing, it was dried overnight under reduced pressure. When the obtained cloth was dyed with a differential dye (Kayastin), it showed a remarkable red-purple color compared to the untreated cotton cloth, indicating that the surface structure of the cotton cloth changed and the cotton cloth was modified. .
Example 2
A cotton cloth is impregnated with an aqueous solution containing 0.9 mol / L methacrylic acid and 5% hydrogen peroxide, and the pulled-up place is irradiated with a 15 W low-pressure mercury lamp for 60 minutes. Water, methanol, water, neutral detergent, water After washing in order, it was dried under reduced pressure overnight. When the obtained cloth was dyed with a differential dye (Kayastin), it showed that the surface structure of the cotton cloth was changed and the cotton cloth was modified due to the remarkable blue-purple color compared to the untreated cotton cloth. . The blue-violet color was more noticeable on the light-irradiated surface.
Example 3
A mercerized cotton cloth is impregnated with an aqueous solution containing 3 mol / L acrylic acid and 5% hydrogen peroxide, and the pulled-up place is irradiated with a 15 W low-pressure mercury lamp for 60 minutes, water, methanol, water, neutral detergent, water After washing in this order, it was dried under reduced pressure overnight. When the obtained cloth was dyed with a differential dye (Kayastin), it showed a remarkable red-purple color compared to the untreated cotton cloth, indicating that the surface structure of the cotton cloth changed and the cotton cloth was modified. . The degree of reddish purple was more prominent than normal cotton cloth.
Example 4
A mercerized cotton cloth is impregnated with an aqueous solution containing 0.9 mol / L methacrylic acid and 5% hydrogen peroxide, and the pulled-up place is irradiated with a 15 W low-pressure mercury lamp for 60 minutes, and water, methanol, water, neutral detergent After washing in order of water, it was dried under reduced pressure overnight. When the obtained cloth was dyed with a differential dye (Kayastin), it showed that the surface structure of the cotton cloth was changed and the cotton cloth was modified due to the remarkable blue-purple color compared to the untreated cotton cloth. . The blue-violet color was more noticeable on the light-irradiated surface. The degree of blue-violet color was more prominent than normal cotton cloth.
Example 5
Tencel cloth was impregnated with an aqueous solution containing 3 mol / L acrylic acid and 5% hydrogen peroxide, and the pulled-up place was irradiated with a 15 W low-pressure mercury lamp for 60 minutes, followed by water, methanol, water, neutral detergent, and water in that order. And then dried under reduced pressure overnight. When the obtained cloth was dyed with a differential dye (Kayastin), it showed a remarkable reddish purple color compared to the untreated Tencel cloth. found.
Example 6
Tencel cloth was impregnated with an aqueous solution containing 0.9 mol / L methacrylic acid and 5% hydrogen peroxide, and the pulled-up place was irradiated with a 15 W low-pressure mercury lamp for 60 minutes. Water, methanol, water, neutral detergent, water After washing in this order, it was dried under reduced pressure overnight. When the obtained cloth was dyed with a differential dye (Kayastin), it showed a remarkable blue-purple color compared to the untreated Tencel cloth. found. The blue-violet color was more noticeable on the light-irradiated surface.
Example 7
Tencel cloth was impregnated with an aqueous solution containing 0.3 mol / L maleic acid and 5% hydrogen peroxide, and the pulled-up place was irradiated with a low-pressure mercury lamp of 15 W for 60 minutes, water, methanol, water, neutral detergent, water After washing in this order, it was dried under reduced pressure overnight. When the obtained cloth was dyed with a differential dye (Kayastin), the surface structure of the tencel was changed due to a slightly greenish color compared to the untreated tencel cloth, and the tencel cloth was modified. It has been found.
Example 8
A polynosic cloth is impregnated with an aqueous solution containing 3 mol / L acrylic acid and 5% hydrogen peroxide. The pulled-up place is irradiated with a 15 W low-pressure mercury lamp for 60 minutes, followed by water, methanol, water, neutral detergent, and water in that order. And then dried under reduced pressure overnight. When the obtained fabric was dyed with a differential dye (Kayastin), it showed a remarkable reddish purple color compared to the untreated polynosic fabric, indicating that the surface structure of the polynosic was changed and the polynosic fabric was modified. found. Reddish purple was more remarkable on the light-irradiated surface.
Example 9
A polynosic cloth is impregnated with an aqueous solution containing 0.9 mol / L methacrylic acid and 5% hydrogen peroxide, and the pulled-up place is irradiated with a 15 W low-pressure mercury lamp for 60 minutes. Water, methanol, water, neutral detergent, water After washing in this order, it was dried under reduced pressure overnight. When the obtained cloth was dyed with a differential dye (Kayastin), it showed a remarkable blue-purple color compared to the untreated polynosic cloth, indicating that the polynosic cloth was modified and the polynosic cloth was modified. found. The blue-violet color was more noticeable on the light-irradiated surface.
Example 10
A polynosic cloth is impregnated with an aqueous solution containing 0.3 mol / L maleic acid and 5% hydrogen peroxide, and the pulled-up place is irradiated with a 15 W low-pressure mercury lamp for 60 minutes. Water, methanol, water, neutral detergent, water After washing in this order, it was dried under reduced pressure overnight. When the obtained cloth was dyed with a differential dye (Kayastin), the surface structure of the polynosic changed due to a slightly greenish blue compared to the untreated polynosic cloth, and the polynosic cloth was modified. It has been found.
Example 11
A cupra cloth is impregnated with an aqueous solution containing 3 mol / L acrylic acid and 5% hydrogen peroxide, and a 15 W low-pressure mercury lamp is irradiated for 60 minutes to the pulled-up place, followed by water, methanol, water, neutral detergent, and water in that order. And then dried under reduced pressure overnight. When the obtained cloth was dyed with a differential dye (Kayastin), it showed a remarkable red-purple color compared to the untreated cupra cloth, which indicated that the surface structure of the cupra was changed and the cupra cloth was modified. found.
Example 12
A cupra cloth is impregnated with an aqueous solution containing 0.9 mol / L methacrylic acid and 5% hydrogen peroxide, and the pulled-up place is irradiated with a 15 W low-pressure mercury lamp for 60 minutes, and water, methanol, water, neutral detergent, water After washing in this order, it was dried under reduced pressure overnight. When the obtained cloth was dyed with a differential dye (Kayastin), it showed a remarkable blue-purple color compared to the untreated cupra cloth, indicating that the surface structure of the cupra was changed and the cupra cloth was modified. found.
Example 13
The cupra cloth was impregnated with an aqueous solution containing 0.3 mol / L maleic acid and 5% hydrogen peroxide, and the pulled-up place was irradiated with a 15 W low-pressure mercury lamp for 60 minutes, water, methanol, water, neutral detergent, water After washing in this order, it was dried under reduced pressure overnight. When the obtained cloth was dyed with a differential dye (Kayastin), it was found that the surface structure of the cupra was changed and the cupra cloth was modified due to darkening compared to the untreated cupra cloth.

The explanatory view of the typical reformer used in order to carry out the method of the present invention. Explanatory drawing of the other typical reforming apparatus used in order to implement this invention method. An explanatory view of still another typical reformer used for carrying out the method of the present invention. An explanatory view of still another typical reformer used for carrying out the method of the present invention.

Claims (8)

  Cellulose fibers (with an aspect ratio of 300) in the presence of a compound that generates radicals upon light irradiation and a compound having a carbon-carbon double bond in which an electron-withdrawing group is directly bonded to a carbon atom that forms a carbon-carbon double bond. In the following, a method for modifying a fiber or a fiber product, which comprises irradiating a fiber or a fiber product containing an animal fiber (excluding cellulosic fibers having an abundance ratio of 60% or more) or an animal fiber.   Fibers or fiber products containing cellulosic fibers (excluding cellulosic fibers having an aspect ratio of 300 or less and an abundance ratio of 60% or more) or animal fibers in the presence of a compound that generates radicals upon irradiation with light. On the other hand, after the light irradiation, it is treated with the compound having the carbon-carbon double bond.   The fiber according to claim 1 or 2, wherein a compound that generates radicals upon light irradiation is applied to only a part of a fiber or a fiber product including cellulosic fibers or animal fibers, and is irradiated with light. A method for modifying textile products.   The method for modifying a fiber or fiber product according to any one of claims 1 to 3, wherein the compound that generates radicals upon irradiation with light is a peroxide.   5. The method for modifying a fiber or fiber product according to claim 1, wherein light irradiation is performed through a light beam or a mask.   A method for modifying a fiber and a fiber product, wherein the fiber and the fiber product are treated with a reducing agent after the light irradiation by the method according to any one of claims 1 to 5.   A reformer for carrying out the method according to any one of claims 1, 3 to 6, in the presence of a compound that generates a radical by light irradiation together with a light source and a compound having the carbon-carbon double bond. An apparatus for modifying a fiber or a fiber product, comprising means for irradiating light to the fiber or the fiber product including cellulosic fibers or animal fibers.   A reformer for carrying out the method according to any one of claims 2 to 6, comprising a fiber or a cellulosic fiber or animal fiber in the presence of a light source and a compound that generates radicals by light irradiation. An apparatus for modifying a fiber or a textile product, comprising: means for irradiating a fiber product with light; and means for treating with a compound having a carbon-carbon double bond after the light irradiation.

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