Processed fiber as well as processed fiber product and producing method thereof

Abstract

To provide a processed fiber having a large collagen fixation amount and antibacterial property, and to provide a processed fiber product including the processed fiber, and a producing method thereof.SOLUTION: A processed fiber 10 includes a fiber 1, which is a cellulose-based fiber or an animal fiber, along with collagen 2, an antibacterial agent 3, and an additive 4 that are fixed to the fiber 1, with the amount of collagen fixed being 200 μg / g-fiber or more. The processed fiber product includes the processed fiber 10. This processed fiber product is produced through a producing method that involves a collagen treatment step in which a fiber product containing fibers that are cellulose-based or animal fibers is brought into contact with a collagen treatment aqueous solution containing collagen and additives, then heated and dried to react the fibers, collagen, and additives, and an antibacterial treatment step in which the fiber product is brought into contact with an antibacterial treatment aqueous solution containing an antibacterial agent and then heated and dried.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a processed fiber having collagen and an antibacterial agent fixed thereto, and also to a processed fiber product containing the processed fiber and a method for producing the same. [Background technology]

[0002] A known process is to attach proteins such as collagen, which have functions such as moisture retention, to fibers to improve comfort, such as feel on the skin. For example, Patent Document 1 discloses collagen-containing gloves for cosmetic use, which are made by plating knitting a predetermined yarn as a base yarn and a plating yarn to form a row of ridges that are approximately parallel and can come into contact with the surface of the hand worn by the wearer, and which have a rubber yarn knitted section at the bottom of the palm and plated sleeves with a row of adjacent ridges, and which are characterized in that the base knitted yarn is made of fibers that contain collagen. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3154903 Summary of the Invention [Problem to be solved by the invention]

[0004] Synthetic fibers such as nylon tend to have poor adhesion of collagen and poor washing durability. By increasing the amount of collagen that adheres to them, it is thought that textile products with improved functionality can be provided. Furthermore, in recent years, with the increasing awareness of hygiene, there has been a demand for textile products that have antibacterial properties.

[0005] Under these circumstances, the present invention aims to provide a processed fiber having a high amount of collagen adhered thereto and having antibacterial properties, as well as a processed fiber product containing the processed fiber and a method for producing the same. [Means for solving the problem]

[0006] The present inventors have conducted extensive research to solve the above problems and have found that the following inventions meet the above objectives, thereby completing the present invention.

[0007] <1> A processed fiber comprising a fiber that is a cellulosic fiber or an animal fiber, collagen and an antibacterial agent adhered to the fiber, and an additive that adheres the collagen to the fiber, wherein the amount of adhered collagen is 200 μg / g-fiber or more. <2> The fiber is any fiber selected from the group consisting of rayon, cotton, paper yarn, diacetate, and triacetate, the antibacterial agent is a metal-based antibacterial agent, the additive is one or more selected from the group consisting of an isocyanate-based compound, an epoxy-based compound, glutaraldehyde, and cyanuric chloride, and the amount of collagen adhered is 300 μg / g-fiber or more. <1> The processed fiber described in <3> The fiber is wool or silk, the antibacterial agent is a metal-based antibacterial agent, the additive is at least one selected from the group consisting of an isocyanate-based compound, an epoxy-based compound, glutaraldehyde, and cyanuric chloride, and the amount of collagen adhered is 200 μg / g-fiber or more. <1> The processed fiber described in <4> The aforementioned <1> from <3> A processed fiber product comprising the processed fiber according to any one of the preceding items. <5> The aforementioned <4> The method for producing the processed textile product described in the above item 1 includes a collagen treatment step of contacting a textile product containing fibers that are cellulosic fibers or animal fibers with an aqueous collagen treatment solution containing collagen and additives, and then heating and drying the resulting product to react with the fibers, collagen, and additives, and an antibacterial treatment step of contacting the textile product with an aqueous antibacterial treatment solution containing an antibacterial agent, and then heating and drying the resulting product. [Effects of the Invention]

[0008] The present invention aims to provide a processed fiber having a high amount of collagen adhered thereto and having antibacterial properties. It is also an object of the present invention to provide a processed fiber product containing the processed fiber and a method for producing the same. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a partially enlarged schematic view of a processed fiber of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] The following describes in detail an embodiment of the present invention, but the following description of the constituent elements is one example (typical example) of an embodiment of the present invention, and the present invention is not limited to the following content unless the gist of the present invention is changed. Note that when the expression "to" is used in this specification, it is used as an expression including the numerical values ​​or physical property values ​​before and after it.

[0011] <Processed fiber of the present invention> The present invention relates to a processed fiber (hereinafter sometimes referred to as "the processed fiber of the present invention") that includes a fiber that is a cellulosic fiber or an animal fiber, collagen and an antibacterial agent that are adhered to the fiber, and an additive that adheres the collagen to the fiber, and the amount of adhered collagen is 200 μg / g-fiber or more.

[0012] The inventors of the present invention have discovered that the combined use of specific fibers and additives can increase the amount of collagen adhered and also impart antibacterial properties. The processed fibers of the present invention have a high amount of collagen adhered, excellent moisture retention, and antibacterial properties.

[0013] Figure 1 is a partially enlarged schematic diagram of a processed fiber of the present invention. As shown in Figure 1, the processed fiber 10 of the present invention includes fiber 1 to which collagen 2 and antibacterial agent 3 are fixed. The collagen 2 is fixed to fiber 1 by additive 4. It is believed that the antibacterial agent 3 adheres to the gaps between fibers 1 that have become narrow due to the fixed collagen 2, or is fixed to fiber 1 via additive 4.

[0014] (fiber) The fibers constituting the processed fibers of the present invention are cellulosic fibers or animal fibers.

[0015] Examples of cellulose-based fibers include regenerated cellulose fibers, natural cellulose fibers, and semi-synthetic cellulose fibers, with regenerated cellulose fibers being preferred. Examples of regenerated cellulose fibers include rayon, cupra, polynosic, and lyocell. Examples of natural cellulose fibers include cotton, paper yarn, and hemp. Examples of semi-synthetic cellulose fibers include acetate and triacetate.

[0016] Animal fibers include wool and silk.

[0017] The fibers constituting the processed fiber of the present invention are preferably any one selected from the group consisting of rayon, cotton, paper yarn, acetate, triacetate, wool and silk, and more preferably rayon or wool.

[0018] (collagen) The processed fiber of the present invention contains collagen. The collagen is natural collagen or a derivative thereof. The natural collagen may be extracted from the skin or bones of animals or fish, but fish collagen is preferred. Specific examples of collagen include natural collagen, atelocollagen, alkali-treated collagen, gelatin, collagen peptide, succinylated atelocollagen, and myristyl-succinylated atelocollagen. The collagen may contain one type alone or two or more types.

[0019] (Amount of collagen adhered) The amount of collagen adhered to the processed fiber of the present invention is 200 μg / g-fiber or more. For example, the amount of collagen adhered to the processed fiber of the present invention is 200 μg / g-fiber to 5000 μg / g-fiber or 250 μg / g-fiber to 4500 μg / g-fiber.

[0020] Here, the amount of adhered collagen is a value determined by the following procedure. 1) A portion of the processed fiber is sampled, and the moisture content is measured using a moisture meter MS-70 manufactured by A&D Co., Ltd., and the bone dry mass of the processed fiber (weight of the sampled processed fiber - measured moisture content) is calculated. 2) The processed fiber was treated with a 17.5% aqueous solution of hydrochloric acid at 120°C for 10 hours to decompose the collagen, and the dissolved collagen-specific amino acid hydroxyproline was converted to pyrrole by reacting with chloramine T, which was then reacted with Ehrlich's reagent to develop color. The absorbance of the colored liquid at 560 nm was measured using a JASCO V-650 UV-Visible Spectrophotometer, and the amount of collagen was quantified using a calibration curve prepared in advance using aqueous collagen solutions of different concentrations. 3) The amount of collagen thus determined was divided by the bone dry mass of the processed fiber to obtain the amount of collagen adherence (μg / g-fiber).

[0021] When the fibers are cellulosic fibers, the amount of collagen adhered to the processed fibers of the present invention is preferably 300 μg / g-fiber or more, and may be 400 μg / g-fiber or more, 500 μg / g-fiber or more, 600 μg / g-fiber or more, 700 μg / g-fiber or more, 800 μg / g-fiber or more, 900 μg / g-fiber or more, 1000 μg / g-fiber or more, etc. There is no particular upper limit to the amount of collagen adhered, but it may be, for example, 5000 μg / g-fiber or less, 4500 μg / g-fiber or less, or 4000 μg / g-fiber or less.

[0022] Furthermore, when the fibers are animal fibers, the amount of collagen adhered to the processed fibers of the present invention is preferably 250 μg / g-fiber or more, and may be 260 μg / g-fiber or more, 280 μg / g-fiber or more, etc. Furthermore, there is no particular upper limit to the amount of collagen adhered, but it may be, for example, 5000 μg / g-fiber or less, 4000 μg / g-fiber or less, 3000 μg / g-fiber or less, 2000 μg / g-fiber or less, 1000 μg / g-fiber or less, etc.

[0023] (Antibacterial agent) The processed fiber of the present invention contains an antibacterial agent. The antibacterial agent may be inorganic, organic, or natural, but inorganic antibacterial agents are preferred. Inorganic antibacterial agents include metal-based antibacterial agents such as metal ion water and metal-supported materials in which a metal or metal ion is supported on a carrier; inorganic-organic antibacterial agents such as composites of quaternary ammonium and layered compounds; photocatalytic oxides such as titanium oxide; and mineral antibacterial agents containing natural minerals such as iron, potassium, aluminum, titanium, natural zeolite, and calcium. Among these, metal-based antibacterial agents such as silver-based antibacterial agents, copper-based antibacterial agents, and zinc-based antibacterial agents are preferred. Examples of metals in metal ion water and metal-supported materials include silver, copper, and zinc, and examples of carriers for metal-supported materials include zeolite, glass, silicates such as magnesium aluminometasilicate, phosphates such as zirconium phosphate and calcium phosphate, and oxides such as silica. Organic antibacterial agents include cationic antibacterial agents such as quaternary ammonium salts. Natural antibacterial agents include those derived from plants or animals, such as catechins, chitin, chitosan, etc. The antibacterial agent may contain one type of these alone or two or more types.

[0024] (additives) The processed fiber of the present invention contains an additive for fixing collagen. Examples of the additive include isocyanate compounds, glutaraldehyde, cyanuric chloride, and epoxy compounds, with isocyanate compounds being preferred. Examples of isocyanate compounds include blocked isocyanate compounds such as SU-315V from Meisei Chemical Industry Co., Ltd., BAYPRET (registered trademark) USV from Tanatex Chemical Japan Co., Ltd., and MERSTARK372N from Kitahiro Chemical Co., Ltd. Examples of epoxy compounds include ethylene glycol diglycidyl ether, trimethylolpropane triglycidyl ether, and Denacol EX-321 from Nagase ChemteX Corporation.

[0025] Preferred embodiments of the processed fiber of the present invention include the following fibers (i) and (ii). (i) A processed fiber containing any fiber selected from the group consisting of rayon, cotton, paper yarn, diacetate, and triacetate, collagen, a metal-based antibacterial agent, and one or more additives selected from the group consisting of an isocyanate compound, an epoxy compound, glutaraldehyde, and cyanuric chloride, wherein the amount of collagen adhered is 300 μg / g-fiber or more. (ii) A processed fiber containing wool or silk, collagen, a metal antibacterial agent, and one or more additives selected from the group consisting of an isocyanate compound, an epoxy compound, glutaraldehyde, and cyanuric chloride, and having a collagen adhesion amount of 200 μg / g-fiber or more.

[0026] Further, other preferred embodiments of the processed fiber of the present invention include the following fibers (iii) and (iv). (iii) A processed fiber containing regenerated cellulose fiber, collagen, a metal antibacterial agent, and one or more additives selected from the group consisting of an isocyanate compound, an epoxy compound, glutaraldehyde, and cyanuric chloride, wherein the amount of collagen adhered is 300 μg / g-fiber or more. (iv) A processed fiber containing regenerated cellulose fiber, collagen, a silver-based antibacterial agent, and an isocyanate-based compound, the amount of collagen adhered being 300 μg / g-fiber or more.

[0027] <Processed textile product of the present invention> The processed textile product of the present invention contains the processed fiber of the present invention described above. The processed textile product of the present invention may contain only one type of the processed fiber of the present invention, or may contain two or more types of the processed fiber of the present invention. Furthermore, the processed textile product may contain both the processed fiber of the present invention and a fiber other than the processed fiber of the present invention. Specific examples of the processed textile product include socks, gloves, clothing, masks, bandages, hats, scarves, and other processed textile products that come into direct contact with the skin.

[0028] The processed fiber product of the present invention can also have a predetermined washing retention rate. For example, when the washing retention rate is defined as the percentage of the collagen amount fixed after washing according to the A-2 method of JIS L0844 (2011) "Testing methods for color fastness to washing" (soap 5 g / L, bath ratio 1:20, 50°C, 30 minutes), divided by the collagen amount fixed before washing, the washing retention rate of the processed fiber product of the present invention can be 50% or more.

[0029] <Method of manufacturing the processed textile product of the present invention> The processed textile product of the present invention is preferably produced by a production method including a collagen treatment step in which a textile product containing fibers that are cellulosic fibers or animal fibers is contacted with an aqueous collagen treatment solution containing collagen and additives, and then the fibers, collagen, and additives are reacted while heating and drying, and an antibacterial treatment step in which the textile product is contacted with an aqueous antibacterial treatment solution containing an antibacterial agent, and then the antibacterial treatment solution is heated and dried.

[0030] This manufacturing method allows for the easy production of textile products with a large amount of collagen attached and antibacterial properties. In particular, the above manufacturing method allows for the collagen and antibacterial agent to be attached to final products or semi-finished products to which no collagen or the like has been attached in post-processing, thereby imparting moisture retention and antibacterial properties.

[0031] [Collagen processing process] The collagen treatment step is a step in which a textile product containing fibers that are cellulosic fibers or animal fibers is contacted with an aqueous collagen treatment solution containing collagen and additives, and then the fibers, collagen, and additives are reacted with each other while being heated and dried. By contacting the textile product with the collagen treatment aqueous solution and then heating it, the textile product is dried and at the same time, a reaction of the additives to fix the collagen to the fibers proceeds, allowing a larger amount of collagen to be firmly fixed to the fibers.

[0032] (Textile products) Although primary or secondary processed textile products may be used, it is preferable to use final or semi-finished products that come into direct contact with the skin, such as socks, gloves, clothing, masks, bandages, hats, and scarves. By subjecting a final textile product to collagen treatment and antibacterial agent treatment, the treated textile product can be used as a finished product. Alternatively, semi-finished textile products (e.g., knitted tights) can be subjected to collagen treatment and antibacterial agent treatment, and then subjected to final processing (e.g., embroidery) to produce a final product. The fibers that make up the textile product may contain cellulosic fibers, animal fibers, or both cellulosic and animal fibers. The fibers that make up the textile product may also contain fibers other than cellulosic and animal fibers.

[0033] (Aqueous solution for collagen treatment) In the collagen treatment step, an aqueous collagen treatment solution containing collagen and additives is used. The additives contained in the aqueous collagen treatment solution are intended to fix the collagen to the fibers. The aqueous collagen treatment solution may contain components other than collagen and the additives for fixing the collagen to the fibers. For example, as described below, when the collagen treatment step and the antibacterial agent treatment step are carried out simultaneously, an aqueous solution containing collagen, an antibacterial agent, and an additive (hereinafter referred to as "aqueous solution A") can be used as the aqueous collagen treatment solution.

[0034] (collagen concentration) The collagen concentration in the collagen treatment aqueous solution is preferably 0.01% owf to 30% owf (on the weight of fiber). If the collagen concentration is too low, the amount of collagen that is fixed may be insufficient. The lower limit of the collagen concentration is more preferably 0.05% owf or more, and even more preferably 0.08% owf or more. If the collagen concentration is too high, there is a risk that the collagen that remains unfixed will be lost. The upper limit of the collagen concentration can be 20% owf or less, 10% owf or less, 5% owf or less, etc.

[0035] (additive concentration) The additive concentration in the collagen treatment aqueous solution is preferably 0.01% owf to 30% owf. If the additive concentration is too low, the amount of collagen adhered may be insufficient. The lower limit of the additive concentration is more preferably 0.1% owf or more, and even more preferably 1% owf or more. If the additive concentration is too high, the processed fiber may become hard, which may impair the texture. The upper limit of the additive concentration may be 20% owf or less, 10% owf or less, or 5% owf or less, for example.

[0036] The method for contacting a textile product with the collagen treatment aqueous solution is not particularly limited. For example, the textile product may be immersed in the aqueous solution contained in a liquid tank or the like. Furthermore, for products that come into contact with the skin, such as clothing, socks, gloves, masks, bandages, hats, and scarves, the surface that comes into contact with the skin may be brought into contact with the aqueous solution with the surface that comes into contact with the skin facing inward, or with the surface that comes into contact with the skin facing outward.

[0037] The contact temperature when bringing the textile product into contact with the collagen treatment aqueous solution can be set taking into consideration factors such as ease of dissolving the collagen, antibacterial agent, and additives, the likelihood of fiber damage, and ease of handling due to minimal changes in concentration. This temperature is preferably controlled by adjusting the temperature of the collagen treatment aqueous solution. For example, the temperature of the collagen treatment aqueous solution can be set to about room temperature to about 80°C, or about 40 to 70°C, for contact. The contact time can also be set appropriately within the range in which collagen adheres, depending on the various contact conditions described above. For example, the contact time can be set to about 1 minute to 2 hours, or about 10 minutes to 1 hour.

[0038] (heating) In the collagen treatment step, a heat treatment is carried out after the textile product has been brought into contact with the collagen treatment aqueous solution. The heat treatment is preferably carried out after the textile product that has been brought into contact with the collagen treatment aqueous solution has been dried at room temperature. This makes it possible to more firmly fix the collagen while suppressing deterioration of the textile product. The heating temperature is preferably 50°C to 150°C, more preferably 80°C to 120°C. The heating time is 1 to 30 minutes, 2 to 20 minutes, or 3 to 10 minutes, for example. Usually, hot air drying is used, but the heating method is not particularly limited.

[0039] [Antibacterial treatment process] The antibacterial treatment step is a step in which a textile product containing cellulosic or animal fibers is brought into contact with an aqueous solution for antibacterial treatment containing an antibacterial agent, and then heated and dried.

[0040] (Antibacterial treatment solution) In the antibacterial treatment step, an antibacterial treatment aqueous solution containing an antibacterial agent is used. The antibacterial treatment aqueous solution may contain components other than the antibacterial agent, and may contain components such as a crosslinker as appropriate depending on the type of antibacterial agent. As will be described later, when the collagen treatment step and the antibacterial treatment step are carried out simultaneously, an aqueous solution containing collagen, an antibacterial agent, and an additive (hereinafter referred to as "aqueous solution A") can be used as the antibacterial treatment aqueous solution.

[0041] (antibacterial agent concentration) The antibacterial agent concentration in the antibacterial treatment aqueous solution is preferably 0.00001% to 30%. If the antibacterial agent concentration is too low, the antibacterial properties may be insufficient. The lower limit of the antibacterial agent concentration is more preferably 0.00005% or more, and even more preferably 0.0001% or more. If the antibacterial agent concentration is too high, there is a risk of interfering with collagen processing. The upper limit of the antibacterial agent concentration can be 20% or less, 10% or less, 5% or less, etc.

[0042] The contact method and temperature of the textile product with the aqueous antibacterial treatment solution in the antibacterial treatment step are the same as the contact means and temperature of the textile product with the aqueous collagen treatment solution in the collagen treatment step.

[0043] In the antibacterial treatment step, the textile product is brought into contact with an antibacterial treatment aqueous solution, followed by heating and drying. The drying treatment may be performed in combination with room temperature drying as long as it includes at least heat drying, and it is preferable to perform heating after room temperature drying. This makes it possible to strengthen the adhesion of the antibacterial agent while suppressing deterioration of the textile product. The heating temperature is preferably 50°C to 150°C, more preferably 80°C to 120°C, and the heating time is 1 to 30 minutes, 2 to 20 minutes, or 3 to 10 minutes, for example.

[0044] The collagen treatment step and the antibacterial agent treatment step may be carried out in whole or in part simultaneously, or may be carried out separately.

[0045] Specific examples of methods for simultaneously performing both the collagen treatment step and the antibacterial treatment step include (I) a method in which a textile product containing cellulosic or animal fibers is contacted with an aqueous solution A containing collagen, an antibacterial agent, and an additive, and then the fiber, collagen, and additive are reacted while heating and drying. In the manufacturing method (I), after contacting the textile product with aqueous solution A, it is preferable to dry the textile product at room temperature as appropriate and then treat it under the same heating conditions as in the collagen treatment step.

[0046] An example of a method for simultaneously performing part of the collagen treatment step and part of the antibacterial treatment step is a method for simultaneously performing heat drying in the collagen treatment step and heat drying in the antibacterial treatment step. Specifically, there is (II) a method in which a textile product containing cellulosic or animal fibers is contacted with a collagen treatment aqueous solution containing collagen and additives, and then the textile product is contacted with an antibacterial treatment aqueous solution containing an antibacterial agent, and then the textile product is heated and dried while reacting the fibers, collagen, and additives. In the production method (II), after contacting the textile product with the antibacterial treatment aqueous solution, it is preferable to dry the textile product at room temperature as appropriate and then treat it under the same heating conditions as in the collagen treatment step. Alternatively, the textile product may be brought into contact with an antibacterial treatment aqueous solution, and then brought into contact with a collagen treatment aqueous solution, and then dried at room temperature as appropriate, and then heated.

[0047] When the collagen treatment step and the antibacterial agent treatment step are carried out separately, either step may be carried out first. Specifically, the following production methods (III) and (IV) can be mentioned. (III) A method of carrying out a collagen treatment step in which a textile product containing cellulosic or animal fibers is brought into contact with an aqueous collagen treatment solution containing collagen and additives, and then the resulting product is heated and dried to react with the fibers, collagen, and additives, and then an antibacterial treatment step in which the textile product is brought into contact with an aqueous antibacterial treatment solution containing an antibacterial agent, and then the resulting product is heated and dried. (IV) A method of carrying out an antibacterial treatment step in which a textile product containing cellulosic or animal fibers is brought into contact with an antibacterial treatment aqueous solution containing an antibacterial agent, followed by heating and drying, and then carrying out a collagen treatment step in which the textile product is brought into contact with a collagen treatment aqueous solution containing collagen and additives, followed by heating and drying while reacting the fiber, collagen, and additives.

[0048] Furthermore, the processed textile products of the present invention are preferably produced by a method in which a pre-processing step of treating the textile product by dry processing is followed by a collagen treatment step and an antibacterial treatment step. This further increases the amount of collagen and antibacterial agent adhered to the fibers. It is believed that collagen adhesion can be prevented by subjecting the textile product to an appropriate dry processing treatment in advance, thereby improving fiber-protein interaction. Pre-treatment allows for efficient processing and reduces the amount of collagen, antibacterial agent, and additives used, making this a textile processing technology with a low environmental impact. It is also expected to improve wash retention, shorten processing time, and ease processing conditions. Furthermore, dry processing has the advantage of changing (modifying) the properties of fibers in a dry state, eliminating the need for the addition of water or chemicals, their disposal, and the drying process.

[0049] Examples of dry processes include ultraviolet treatment, ozone treatment, plasma treatment, corona treatment, electron beam treatment, and flame treatment.

[0050] Ultraviolet treatment is a method of treating textile products by irradiating them with ultraviolet rays. For ultraviolet treatment, it is preferable to irradiate with ultraviolet rays capable of generating ozone, and it is preferable to use ultraviolet rays with wavelengths of deep ultraviolet or UV-C (wavelength 100 to 280 nm). For example, a low-pressure mercury lamp with wavelengths of 185 nm and 254 nm or an excimer lamp with a wavelength of 172 nm can be used.

[0051] The treatment time for ultraviolet treatment may be 30 seconds or more, 1 minute or more, or 5 minutes or more. There is no particular upper limit to the ultraviolet irradiation time, but if it is done for a long time, the effect may saturate or the temperature may become too high, causing damage to the fiber. Therefore, an upper limit may be set, such as 60 minutes or less, 30 minutes or less, 20 minutes or less, or 15 minutes or less, or the treatment may be done multiple times with intervals. The irradiation intensity is several mW / cm. 2 to several W / cm 2The higher the UV radiation intensity, the greater the amount of modification and the shorter the modification time, and it is preferable to adjust the UV radiation intensity along with the distance from the object to be treated. When UV radiation is applied in air, it is believed that oxygen in the air is converted into ozone, and the ozone combines with the object to be treated, resulting in modification.

[0052] For example, a low-pressure mercury lamp is used, and the irradiance is 0.1 J / cm 2 ~500J / cm 2 UV treatment can be performed with an integrated light dose of 0.5 J / cm2. 2 ~300J / cm 2 The range of 1 J / cm is preferred. 2 ~150J / cm 2 The range of 5 J / cm is more preferable. 2 ~100J / cm 2 The range of 10 J / cm is more preferable. 2 ~80J / cm 2 is more preferable, and 15 J / cm 2 ~60J / cm 2 More preferably, 20 J / cm 2 ~50J / cm 2 The range is more preferable.

[0053] Ozone treatment is a process in which textile products are treated with ozone gas. A known ozone generator can be used for the ozone treatment, and the generation method is not particularly limited.

[0054] Plasma treatment is a method of treating textile products by irradiating them with plasma. It can be performed as a low-vacuum plasma treatment using gases such as standard air, nitrogen (N2), or hydrogen (H2) / N2 mixed gas. The degree of vacuum can be about 10 to 200 Pa, or about 20 to 100 Pa.

[0055] The plasma irradiation time for the plasma treatment can be 10 seconds or more. The plasma treatment time may be 30 seconds or more, 1 minute or more, or 5 minutes or more. There is no need to set an upper limit to the plasma irradiation time, but since the effect may saturate if the treatment is performed for a long time and the production time may increase, an upper limit may be set, such as 60 minutes or less, 30 minutes or less, 20 minutes or less, or 15 minutes or less.

[0056] Flame treatment is a process that modifies the surface of textiles by burning a combustible gas containing silicone or silica to form a silicon oxide film on the surface. This treatment is performed by reciprocating the gas so that it hits the textile parallel to the surface to ensure uniform treatment, and may be performed for two or more, four or more, or even sixteen or more reciprocations. There is no particular upper limit to the number of treatments, but increasing the number of reciprocations may saturate the effect or damage the fibers to the flame, so an upper limit such as 100 or 50 reciprocations may be set. The irradiation intensity can be adjusted by the gas output, but it must also be adjusted along with the distance from the treated object.

[0057] Among these, ultraviolet treatment is preferred as the pretreatment, and ultraviolet and ozone treatment is more preferred.

[0058] Furthermore, the processed textile product of the present invention can also be obtained by using a textile product treated with an antibacterial agent, appropriately carrying out pretreatment, and then carrying out a collagen treatment step. [Example]

[0059] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to the following examples as long as the gist of the present invention is not changed.

[0060] [Example 1] A rayon (Tubifast®) sample was immersed in an aqueous solution containing 1% owf collagen (Kyokuyo Chemical Industry Co., Ltd.'s "Fish Collagen Peptide SVF"), 5% owf additive (Tanatex Chemical Japan Co., Ltd.'s "BAYPRET® USV"), and an antibacterial agent (a silver aqueous solution (silver ion water) with a silver ion concentration of approximately 3 wtppm), and treated at 25°C for 60 minutes. The sample was then dried at room temperature and then subjected to a drying reaction at 120°C for 5 minutes. The sample was then washed with water and dried to produce a collagen-modified sample. The amount of collagen adhered to the obtained sample was determined to be 342.2 μg / g-fiber.

[0061] [Reference example 1] A sample of PET (attached white cloth (JIS L 0803 compliant)) was prepared and pretreated by irradiating it with UV light for 5 minutes using a low-pressure mercury lamp (20 mW / cm2). Next, the PET was immersed in an aqueous solution containing 1% owf collagen (Kyokuyo Chemical Industry Co., Ltd.'s "Fish Collagen Peptide SVF"), 5% owf additive (Tanatex Chemical Japan Co., Ltd.'s "BAYPRET (registered trademark) USV"), and an antibacterial agent (Takahashi Rensen Co., Ltd.'s "DEOFACTOR (registered trademark)" (mineral antibacterial agent), a silver aqueous solution, or Shichifuku Chemical Co., Ltd.'s SOK (chitosan Sol.)), and treated at 25°C for 60 minutes. After drying at room temperature, the PET was subjected to a drying reaction at 120°C for 5 minutes. The sample was then washed with water and dried to prepare a collagen-modified sample. The amount of collagen adhered to the obtained sample was determined, and the results are shown in Table 1.

[0062] [Table 1]

[0063] [Reference example 2] Three samples of rayon (Tubifast®) were prepared, and two samples were illuminated with a low-pressure mercury lamp (0.167 W / cm) manufactured by Heraeus. 2) were used, and pretreatment by UV irradiation was performed as described in Table 1. Next, the rayon was immersed in an aqueous solution containing 1% owf collagen ("Fish Collagen Peptide SVF" from Kyokuyo Chemical Industry Co., Ltd.) and 5% owf additive ("BAYPRET (registered trademark) USV" from Tanatex Chemical Japan Co., Ltd.) and treated at 25°C for 60 minutes. Next, it was dried at room temperature, and then subjected to a drying reaction at 120°C for 5 minutes. After that, it was washed with water and dried to prepare a collagen-modified rayon sample. The amount of collagen adhered to the obtained sample was determined, and the results are shown in Table 2.

[0064] [Table 2]

[0065] [Reference example 3] Wool (merino wool socks) samples were used without pretreatment. PET (polyester socks (manufactured by World Globe Co., Ltd.)) samples were used under a low-pressure mercury lamp (20 mW / cm 2 ) and pretreated with UV irradiation for 5 minutes. Next, the hair or PET was immersed in an aqueous solution containing 1% owf collagen ("Fish Collagen Peptide SVF" from Kyokuyo Chemical Industry Co., Ltd.) and 5% owf additive ("BAYPRET (registered trademark) USV" from Tanatex Chemical Japan Co., Ltd.) and treated at 25°C for 60 minutes. Next, it was dried at room temperature, and then subjected to a drying reaction at 120°C for 5 minutes. After that, it was washed with water and dried to prepare a collagen-modified sample. The amount of collagen adhered to the obtained sample was determined, and the results are shown in Table 3.

[0066] [Table 3]

[0067] [Reference example 4] PET (attached white cloth (JIS L 0803 compliant)) was prepared and pre-treated as described in Table 4 using an ozone-free low-pressure mercury lamp UVL20PH-6 from Sen Special Light Sources Co., Ltd. and an ozone generator SK2002C from Shoken Techno Co., Ltd. (ozone generation amount: detector tube 280 ppm). Next, the PET or nylon was immersed in an aqueous solution containing 1% owf collagen ("Fish Collagen Peptide SVF" from Kyokuyo Chemical Industry Co., Ltd.) and 5% owf additive ("BAYPRET (registered trademark) USV" from Tanatex Chemical Japan Co., Ltd.) and treated at 25°C for 60 minutes. Next, it was dried at room temperature, and then subjected to a drying reaction at 120°C for 5 minutes. After that, it was washed with water and dried to prepare a collagen-modified sample. The amount of collagen adhered to the obtained sample was determined, and the results are shown in Table 4.

[0068] [Table 4]

[0069] [Reference example 5] Two pieces of PET (attached white cloth (JIS L 0803 compliant)) were prepared and pretreated with low-vacuum plasma exposure for 5 minutes using standard air (Air) using a gas introduction type vacuum plasma device YHS-G from Sakigake Semiconductor Co., Ltd. Next, one PET was immersed in an aqueous solution containing 1% owf collagen ("Fish Collagen Peptide SVF" from Kyokuyo Chemical Industry Co., Ltd.) and 5% owf additive ("BAYPRET (registered trademark) USV" from Tanatex Chemical Japan Co., Ltd.), and the other PET was immersed in an aqueous solution containing 1% owf collagen and no additive, and each was treated at 25°C for 60 minutes. Next, it was dried at room temperature, and then subjected to a drying reaction at 120°C for 5 minutes. After that, it was washed with water and dried to prepare a collagen-modified sample.

[0070] The amount of collagen adhered to the obtained samples was measured, and then the samples were washed using the A-2 method of JIS L0844 (2011) "Testing method for color fastness to washing" (soap 5g / L, bath ratio 1:20, 50℃, 30 minutes), and the amount of collagen adhered to the PET after washing was measured. The results are shown in Table 5.

[0071] [Table 5] [Explanation of symbols]

[0072] 1. Fiber 2. Collagen 3. Antibacterial agents 4 Additives 10. Processed Fibers

Claims

1. a fiber that is a cellulosic fiber or an animal fiber; collagen and an antimicrobial agent affixed to the fibers; an additive that bonds the collagen to the fibers; The processed fiber has an adhering amount of collagen of 200 μg / g-fiber or more.

2. The fiber is any fiber selected from the group consisting of rayon, cotton, paper yarn, diacetate, and triacetate; the antibacterial agent is a metal-based antibacterial agent, the additive is at least one selected from the group consisting of an isocyanate compound, an epoxy compound, glutaraldehyde, and cyanuric chloride; 2. The processed fiber according to claim 1, wherein the amount of the collagen adhered is 300 μg / g-fiber or more.

3. the fibers are wool or silk; the antibacterial agent is a metal-based antibacterial agent, the additive is at least one selected from the group consisting of an isocyanate compound, an epoxy compound, glutaraldehyde, and cyanuric chloride; 2. The processed fiber according to claim 1, wherein the amount of the collagen adhered is 200 μg / g-fiber or more.

4. A processed fiber product comprising the processed fiber according to any one of claims 1 to 3.

5. A method for producing the processed fiber product according to claim 4, a collagen treatment step in which a textile product containing a fiber that is a cellulosic fiber or an animal fiber is contacted with an aqueous collagen treatment solution containing collagen and an additive, and then the fiber, the collagen, and the additive are reacted while being heated and dried; and an antibacterial treatment step of contacting the textile product with an antibacterial treatment aqueous solution containing an antibacterial agent, followed by heating and drying.

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