Manufacturing method for textile products containing functional ingredients extracted from defatted rice bran

Abstract

To provide a textile product imparted with the antioxidant, moisturizing and antibacterial properties of the rice polyphenol components by extracting the rice polyphenol components contained in defatted rice bran, which is a food residue, and fixing the rice polyphenol components to the textile product. [Solution] The textile product of the present invention is a textile product in which rice polyphenol components contained in defatted bran are extracted and applied to fibers, thereby expressing the functionality of the applied rice polyphenol components, such as antioxidant properties, moisturizing properties, and antibacterial properties, and the expression of such functionality can be confirmed by measurement and evaluation. The textile product of the present invention is a textile product in which rice polyphenol components are applied to fibers by either of the following methods for applying the rice polyphenol components to fibers: a method for preparing a fiber processing agent containing rice polyphenol components as a main component and applying it to the textile product by auxiliary processing, or a method for binding the rice polyphenol components to fibers using a mordant and applying them.

Description

[Technical field]

[0001] This invention is a fiber-based textile product in which polyphenol components, which are functional components extracted from defatted bran, a food waste that has traditionally been discarded, are added to the fibers. Product It relates to a manufacturing method. [Background technology]

[0002] In recent years, the rise of products using functional ingredients derived from natural raw materials has been noticeable from the perspective of SDGs, carbon neutrality, and sustainability. In particular, products using rice bran are attracting attention not only for traditional consumption but also for beauty purposes such as lotions. Products using rice bran take advantage of the antioxidant, moisturizing, and antibacterial properties of the polyphenols contained in rice bran, and technology is being considered to apply these ingredients to textile products.

[0003] Patent Document 1 discloses an antioxidant and antibacterial fiber that uses deacetylated chitosan with polyphenol attached thereto. It is said that the fiber in Patent Document 1 can provide a fiber that is excellent not only in antioxidant and antibacterial properties but also in washing durability.

[0004] Patent Document 2 discloses rayon fibers to which rice oil and rice oil components are added as an active ingredient in the form of an emulsion. According to Patent Document 2, it is possible to provide fibers that combine sustained release properties and washing resistance.

[0005] Patent Document 3 discloses aliphatic polyester fibers and polylactic acid fibers in which a lipophilic moisturizing agent containing oil extracted from rice and an antioxidant skin conditioning agent containing polyphenols are fixed with a binder. According to Patent Document 3, it is possible to provide fibers with excellent tactile sensation that cause less physical irritation to the skin and can restore weakened skin resistance.

[0006] However, the technology of Patent Document 1 merely uses a special fiber formed from deacetylated chitosan and polyphenol components such as catechin as auxiliary components for the antioxidant and antibacterial properties of chitosan, and it cannot be said that the technology utilizes the effects and efficacy of polyphenol components as the main component.

[0007] The technology of Patent Document 2 is a fiber made by adding rice oil to rayon with moisture absorbing and releasing properties, and since there is no comparison in the examples with and without the addition, it is difficult to determine whether the effect is due to the moisture retaining properties of rayon or the added rice oil and rice oil-containing ingredients. Also, since there is no description that confirms whether the added ingredients really remain within the rayon fiber, it is difficult to determine whether the effects and efficacy obtained by this technology are due to the added rice oil and rice oil-containing ingredients.

[0008] The technology in Patent Document 3 shows the effect on the skin of the combined use of a lipophilic moisturizer and an antioxidant skin conditioning agent. However, when examining the examples, it is clear that what plays a major role in improving rough skin is the way the fabric is made, including the fibers used, and that the lipophilic moisturizer and antioxidant skin conditioning agent are merely auxiliary ingredients.

[0009] Furthermore, in the case of textile products to which functionality has been imparted as described in Patent Documents 1 to 3, it is required that the effect of the functionality possessed by the functional ingredients be measurable or reliably verifiable after production and be reliably manifested; however, Patent Documents 1 to 3 do not clearly disclose this, and the current situation is that it is not possible to ensure the stability of imparting functionality to textile products.

[0010] In other words, there is currently a demand for the development of textile products that can be confirmed to utilize the polyphenol components contained in rice bran, which is used in lotions and other products, as their main functional ingredients.

[0011] In recent years, various food waste recycling efforts have been promoted from the perspective of the SDGs, carbon neutrality, and sustainability. The main efforts are turning food waste into animal feed and composting, which reduce processing costs and CO2 emissions from incineration. 2A reduction in has been proposed.

[0012] The only use of food waste in textile products is dyeing, which uses pigments extracted from the juice of squeezed fruits or vegetable pomace or peeled skins, etc. However, these dyed products are less durable than normally worn textile products, and the color development and repeatability are not stable, so these products have not been widely adopted in society, and the current situation is far from contributing to the environment by using food waste. [Prior art documents] [Patent documents]

[0013] [Patent Document 1] JP 2008-156787 A [Patent Document 2] JP 2007-314914 A [Patent Document 3] JP 2005-113304 A Summary of the Invention [Problem to be solved by the invention]

[0014] The present invention has been made in consideration of the current situation, and aims to provide a textile product that utilizes defatted bran, a food waste, by extracting the polyphenol components (hereinafter referred to as rice polyphenol components) contained in the bran and fixing them to the textile product, thereby imparting the antioxidant, moisturizing, and antibacterial properties of the rice polyphenol components, and a method for producing the same.

[0015] Defatted rice bran is the residue left over after rice oil is extracted from rice bran, and is currently used for livestock feed, soil improvement materials, etc. However, only a small portion of defatted rice bran is used for livestock feed, soil improvement materials, etc., and most of the defatted rice bran is discarded, which is problematic in terms of environmental impact. The present inventors have focused on the fact that defatted rice bran contains rice polyphenol components that can be used as functional ingredients. The present invention aims to provide a textile product that can reduce the amount of waste and the environmental impact by effectively utilizing defatted rice bran. [Means for solving the problem]

[0016] As a result of extensive investigations aimed at solving the above problems, the present inventors arrived at and completed the present invention.

[0017] That is, the gist of the present invention is as follows. The textile product of the present invention is a textile product in which rice polyphenol components contained in defatted bran, a food waste, are extracted and the extracted rice polyphenol components are applied to textiles to express the functionality of the applied rice polyphenol components, such as antioxidant properties, moisturizing properties, and antibacterial properties, and the expression of these functionality can be measured and confirmed. The textile product of the present invention is a textile product characterized in that rice polyphenol components extracted from defatted bran, a food waste, are imparted to fibers by either a method in which a textile processing agent containing rice polyphenol components as a main component is prepared and imparted to the textile product by a method known as auxiliary processing, or a method in which a chemical known as a mordant is used to bind the rice polyphenol components to the fibers via the mordant.

[0018] The detailed gist of the present invention is as follows: Claim 1 A first step of extracting rice polyphenol components including ferulic acid, which is a functional component, from the defatted bran; In the first step, Extracted from defatted rice bran The above Rice polyphenols By adding additional processing agents, Add to fiber death The functionality of the rice polyphenol component is Grant do A second step, having The second step is to process the rice with an auxiliary processing agent having a content of the extract containing the rice polyphenol component of 0.01% by weight or more and 10.0% by weight or less based on the total weight of the auxiliary processing agent. A textile product characterized by Manufacturing method . Claim 2 A first step of extracting rice polyphenol components including ferulic acid, which is a functional component, from the defatted bran; A second step of imparting the functionality of the rice polyphenol component extracted from the defatted bran in the first step to the fiber by additional processing with a two-liquid additional processing agent; having The second step is characterized in that the content of the extract containing the rice polyphenol component is 0.01% by weight or more and 20.0% by weight or less in terms of a weight ratio based on the total weight of the appropriate mixing ratio of the auxiliary processing agents of the two liquids. . Claim 3 2. The textile product according to claim 1, wherein the functionality of the textile product is at least one of an anti-oxidation property, a moisture retention property, and an antibacterial property. or 2 The textile products described in Manufacturing method . Claim 4 A first step of extracting rice polyphenol components including ferulic acid, which is a functional component, from the defatted bran; First, the mordant reacts with the fibers in the bath, then In the first step, Extracted from defatted rice bran The above An extract containing rice polyphenol components is applied to a bath in which the fibers reacted with the mordant are present, and the rice polyphenol components are applied by binding to the fibers. A second step, have A method for producing a textile product comprising the steps of: Effect of the Invention

[0019] The textile product of the present invention is a textile product in which rice polyphenol components extracted from defatted bran, a food residue, are added to the textile product to exhibit the functionality of the added rice polyphenol components, such as antioxidant properties, moisturizing properties, and antibacterial properties, and the functional exhibited properties can be measured and confirmed, and the method for adding the rice polyphenol components to fibers is either a method of preparing a fiber processing agent containing the rice polyphenol components as a main component and applying it to fibers by a method called auxiliary processing, or a method of directly binding the rice polyphenol components to fibers using a chemical called a mordant to impart the rice polyphenol components.The present invention also relates to a manufacturing method for directly binding the rice polyphenol components to fibers.

[0020] According to the present invention, not only can the defatted bran, which is a food residue, be reused to reduce the environmental load, but also textile products can be obtained that are endowed with antioxidant, moisturizing, and antibacterial properties by utilizing the extracted rice polyphenol components. In addition, since the defatted bran is the residue after the oil components are extracted, it is possible to extract the hydrophilic rice polyphenol components that are prevented from being extracted by the oil components during the extraction of rice or rice bran, and it is possible to obtain textile products that are endowed with multiple rice polyphenol components. [Brief description of the drawings]

[0021] [Figure 1] 1(a) to 1(c) are schematic diagrams showing a state in which a rice polyphenol component is bound to a fiber via a mordant and an example of a production process thereof. [Diagram 2] 2(a) to 2(c) are schematic diagrams showing the state and manufacturing process of fixing rice polyphenol components to a textile product using conventional chemical agents. [Diagram 3] FIG. 3 is a graph showing the results of measuring the antioxidant properties of Example 1 and Comparative Examples 1 and 2. [Figure 4] FIG. 4 is a graph showing the results of measuring the antioxidant properties of Example 2 and Comparative Examples 1 and 5. [Diagram 5] FIG. 5 is a graph showing the results of measuring the antioxidant properties of Example 3 and Comparative Examples 1 and 5. [Figure 6] FIG. 6 is a graph showing the measurement of the antioxidant properties of Examples 4 and 5 and Comparative Examples 7 to 9. [Figure 7] FIG. 7 is a graph showing the results of measuring the moisturizing properties of Example 1 and Comparative Examples 1 and 2. [Figure 8] FIG. 8 is a graph showing the results of measuring the moisturizing properties of Example 2 and Comparative Example 4. [Figure 9] FIG. 9 is a graph showing the results of measuring the moisturizing properties of Example 3 and Comparative Examples 1 and 5. [Figure 10] FIG. 10 is a graph showing the results of measuring the moisturizing properties of Examples 4 and 5 and Comparative Examples 7 to 9. [Figure 11]FIG. 11 is a graph showing the calculated increase and decrease in moisture content in the stratum corneum of the monitor's skin measured in the monitor tests of Example 3 and Comparative Example 1. [Figure 12] FIG. 12 is a graph showing the calculated increase and decrease in moisture content of the stratum corneum of the skin of the monitors measured in the monitor tests of Example 4 and Comparative Example 7. [Figure 13] FIG. 13 is a photograph of the skin on the inside of the right forearm of the subject observed under a microscope before the subject test. [Figure 14] FIG. 14 is a photograph of the skin on the inside of the right forearm of a monitor observed under a microscope after a monitor test wearing Example 3. [Figure 15] FIG. 15 is a photograph of the skin on the inside of the right forearm of a monitor observed under a microscope after a monitor test wearing Comparative Example 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] The present invention is described in detail below with respect to the actual implementation of the present invention. The textile product of the present invention is a textile product that is obtained by adding rice polyphenol components extracted from defatted rice bran, a food residue, to the textile product, and thereby exhibits the functionality of the added rice polyphenol components, such as antioxidant properties, moisturizing properties, and antibacterial properties, and the superiority of the exhibited functionality can be confirmed and verified by measuring the functionality.

[0023] (1) Defatted rice bran The defatted rice bran used in the present invention is food residue from which rice oil has been extracted from rice bran, and may be waste from food processing plants that manufacture edible oils and fats. The particle size of the defatted rice bran may be appropriately selected to match the extractor and filter used in the present invention. The finer the particle size of the defatted rice bran, the greater the amount of rice polyphenol components extracted, but care must be taken because clogging may occur depending on the filtering method and filter mesh of the filter, and filtering may take a considerable amount of time.

[0024] In addition, the defatted bran used in the present invention must be one that has been dried after the extraction of rice oil and the solvent used to extract the rice oil has been removed. If the solvent remains, there is a high possibility that the extraction ability of the solvent to extract polyphenol components will be hindered, and sufficient extraction may not be possible. It is preferable to use defatted bran that has been dried after removing the rice oil extraction solvent by crushing the lumps formed during drying and passing them through a mesh to match the particle size distribution.

[0025] The rice bran used as the raw material for the defatted bran used in the present invention is preferably obtained from controlled rice, such as rice bran harvested from domestically produced rice, because it is necessary to be able to confirm information on the pesticides used and to prevent impurities from being mixed into the extracted rice polyphenol components.

[0026] The method for extracting rice polyphenol components from the defatted bran used in the present invention may be to use a known extractor, heat the defatted bran to extract the rice polyphenol components, and then cool the extract and filter it with a known filter. The machine and extraction conditions may be appropriately selected according to the particle size of the defatted bran. When extracting rice polyphenol components from the defatted bran, the rice polyphenol components are boiled by heating, so it is preferable that the extractor is of a sealed type. The heating temperature may be within a temperature range normally used in extraction, and is preferably within a temperature range of 80°C to 120°C. The heating temperature may be appropriately selected according to the particle size of the defatted bran used for extraction and the extraction solvent used for extraction. The extract extracted by the extractor is filtered by a filter to leave only the extract containing the rice polyphenol components. The filter may be appropriately selected according to the particle size of the defatted bran used for extraction, but it is preferable to use a centrifugal separator filter in consideration of the efficiency of filtration. Furthermore, if the particle size of the defatted bran is small, it may not be possible to completely separate the defatted bran from which the rice polyphenol components have been extracted using centrifugal filtration alone, and therefore it is preferable to perform additional filter filtration. The pore size of the mesh for the filter filtration can be appropriately selected according to the particle size of the defatted bran used, but it is preferable to use a mesh with a pore size of about 1 μm.

[0027] The extraction solvent used in extracting rice polyphenol components from the defatted bran used in the present invention may be appropriately selected from solvents that can efficiently extract rice polyphenol components from the defatted bran, and it is preferable to use glycols such as diethylene glycol, propylene glycol, and polyethylene glycol.

[0028] (2) Rice polyphenol components The rice polyphenol components used in the present invention are a group of polyphenol components extracted from known defatted bran, and refer to the group of polyphenol components contained in a defatted bran extract.

[0029] The rice polyphenol components used in the present invention include lipophilic polyphenols and hydrophilic polyphenols contained in, for example, known defatted bran. Lipophilic polyphenols refer to a group of polyphenol components including, for example, ferulic acid and ceramide components (rice ceramide), while hydrophilic polyphenols refer to a group of polyphenol components including, for example, phytic acid and inositol.

[0030] (3) Textile products The textile product of the present invention refers to a fiber or a product made from the fiber, and refers to a product to which rice polyphenol components extracted from defatted bran are fixed.

[0031] The form of the textile product may be appropriately selected from known forms according to the intended use of the textile product, such as fabrics including yarns, woven fabrics, knitted fabrics, nonwoven fabrics, etc., undergarments including slips, camisoles, petticoats, shorts, underpants, tights, T-shirts, crew-neck shirts, U-neck shirts, body suits, girdles, running shirts, underpants, tights, briefs, trunks, etc., leg wear including tights, pantyhose, socks, etc., general clothing including dress shirts, blouses, slacks, skirts, etc., sportswear including polo shirts, warm-up wear, swimsuits, leotards, etc., relaxation wear such as pajamas and yukatas, uniform wear, etc., clothing accessories such as linings, supporters, towels, handkerchiefs, mufflers, scarves, cosmetic face masks, etc., bedding products such as futon coverings, futon covers, pillow covers, bed covers, towel blankets, sheets, blankets, cushion covers, upholstery, etc., and the like.

[0032] The fibers used in the present invention are those used to constitute textile products, and are in known forms, such as raw cotton and slivers for producing spun yarn, spun yarn produced from raw cotton, spun yarn produced in a spinning process, and raw cotton produced by cutting filaments produced by spinning, and may be appropriately selected depending on the intended use of the textile product.

[0033] The fiber material used in the present invention may be appropriately selected according to the intended use of the fiber product. Examples of the fiber material used include natural fibers such as cotton, hemp, wool, and silk, regenerated fibers such as rayon, modal, and lyocell, semi-synthetic fibers such as acetate and triacetate, and synthetic fibers such as nylon, polyester, and polylactic acid, and 100% spun yarns and blended yarns and filaments of these fibers. Any of these may be selected and used according to the intended use of the fiber product, and natural fibers such as cotton and hemp are preferably used from the viewpoints of reducing environmental load and ease of expression of functionality derived from rice polyphenol components. In addition, when the fiber is reacted with the rice polyphenol component to bond it, it is necessary to have a reactive group that can bond with the rice polyphenol component, and it is preferable to use natural fibers such as cotton, hemp, wool, and silk, regenerated fibers such as rayon, modal, and lyocell, which are composed of cellulose similar to cotton and hemp and have similar reactive groups, and nylon, which has similar reactive groups to wool and silk.

[0034] (4) Functionality imparted to textile products The textile product of the present invention is a textile product to which rice polyphenol components have been fixed, thereby imparting functionality that the rice polyphenol components possess.

[0035] The functionality imparted to the textile product is a functionality derived from the rice polyphenol component, and may have at least one of the main functionalities of antioxidant, moisturizing, and antibacterial properties, or may have multiple functionalities. However, the functionality of the textile product must be evaluated and measured to confirm and verify the superiority of the functionality. The functionality of the textile product of the present invention has been confirmed to be superior in terms of antioxidant, moisturizing, and antibacterial properties, and as a result, the textile product is characterized by having the functionality of rice polyphenol components.

[0036] (5) Method for adding rice polyphenol components to textile products As a method for imparting rice polyphenol components to textile products, either "a method of preparing a textile processing agent containing rice polyphenol components as a main component and imparting the rice polyphenol components to textile products by a method called auxiliary processing" or "a method of imparting the rice polyphenol components by directly binding the fibers to the fibers using a chemical called a mordant" can be used to impart the rice polyphenol components to textile products, and the method may be appropriately selected according to the material composition, form, intended use, etc. of the textile product. However, the "method of imparting the rice polyphenol components by directly binding the fibers to the fibers using a chemical called a mordant" can only be used for textile products made of textile materials that have reactive groups capable of binding with the rice polyphenol components, and therefore it is preferable to use this method for natural fibers such as cotton, hemp, wool, and silk, regenerated fibers such as rayon, modal, and lyocell that are composed of cellulose similar to cotton and hemp and have similar reactive groups, and nylon that has similar reactive groups to wool and silk.

[0037] (6) Textile processing agent containing rice polyphenol as the main ingredient The textile processing agent produced in the present invention, which contains rice polyphenol components as its main component, is a processing agent that can be used for additional processing of textiles, which the inventors developed after repeated and intensive research as a method for imparting rice polyphenol components extracted from defatted rice bran to textile products.

[0038] The inventors conducted extensive research into methods for fixing extracted rice polyphenol components to textile products in order to express the functionality of the rice polyphenol components, and discovered that it is possible to permeate rice polyphenol components into fibers and to bond the rice polyphenol components to fibers.

[0039] Therefore, the inventors have invented a method of applying rice polyphenol components to textile products by using defatted rice bran extract to prepare an emulsion type textile processing agent in which the rice polyphenol components are dispersed almost uniformly in the processing agent, and have created a textile processing agent after repeated intensive research. This textile processing agent allows rice polyphenol components to be added to textile products by conventional processing steps, and the functionality of rice polyphenol components can be expressed in the textile products.

[0040] The amount of defatted rice bran extract mixed into the textile processing agent may be appropriately selected depending on the stability of the processing agent to be prepared, and is preferably in the range of 0.01% to 10.0% by weight of the total weight of the textile processing agent prepared using the defatted rice bran extract. If the amount of defatted rice bran extract mixed is less than 0.01% by weight of the total weight of the textile processing agent prepared using the defatted rice bran extract, the amount of rice polyphenol components that can be attached to the textile product will be reduced, and the functionality of the rice polyphenol components will not be expressed. If the amount of defatted rice bran extract mixed is more than 10.0% by weight of the total weight of the textile processing agent prepared using the defatted rice bran extract, the textile processing agent will not be emulsified and the rice polyphenol components will precipitate and settle out, making it impossible to use the textile processing agent.

[0041] Next, the inventors confirmed the liquid stability of the textile processing agent that they developed, which contains rice polyphenol components as its main component.

[0042] Since textile processing agents used in auxiliary textile processing are used at dyeing plants, they are transported over long periods of time to overseas dyeing plants in countries such as China and Vietnam, which are currently the major production areas of textile products, and are stored for long periods in hot and humid chemical warehouses at the dyeing plants. For this reason, textile processing agents must be highly stable in liquid form.

[0043] Therefore, the inventors used a dryer adjusted to simulate the temperature and humidity inside a container during shipping to observe the liquid stability of a textile processing agent that contains rice polyphenols as its main ingredient. As a result, the emulsion collapsed and the ingredients precipitated after 20 days. This result showed that the textile processing agent they developed does not have liquid stability during shipping overseas or storage at processing plants.

[0044] Therefore, the inventors have repeatedly conducted intensive research to improve the liquid stability of the developed textile processing agent, particularly during transportation overseas and storage in high-temperature, high-humidity warehouses at processing plants, and have discovered that the textile processing agent can be highly stabilized by forming the above-developed textile processing agent into a two-part solution and mixing and emulsifying the two parts when preparing the aqueous solution for the auxiliary processing just before the auxiliary processing. After repeated intensive research, the inventors have created a two-part textile processing agent.

[0045] The composition of the two liquids is such that liquid 1 is mostly extract containing the main component, rice polyphenol, and a small amount of extract is added to the other liquid as a nucleating agent that can promote emulsification, which becomes an emulsified fiber processing agent when the auxiliary processing aqueous solution is prepared.

[0046] The inventors left the newly developed two-liquid textile processing agent in the dryer under the above conditions and observed the liquid stability. As a result, even after 90 days, there was no precipitation of the ingredients and the agent was in a stable state. The inventors have completed the development of a textile processing agent with excellent liquid stability, mainly composed of rice polyphenols according to the present invention.

[0047] In the course of their investigations, the inventors discovered that by converting the fiber processing agent into a two-component system, it is possible to increase the amount of defatted rice bran extract mixed into the agent, and that polyphenol components other than the defatted rice bran extract can be mixed in. The two-component fiber processing agent that the inventors have completed can impart more rice polyphenol components to a fiber product than the fiber processing agent prepared above, resulting in a fiber product that exhibits the functional effects of the rice polyphenol components at a higher level.

[0048] The amount of defatted rice bran extract mixed into the two-liquid textile processing agent is preferably in the range of 0.01% to 20.0% by weight of the total weight of the textile processing agent prepared using the defatted rice bran extract and mixed at the appropriate mixing ratio. If the amount of defatted rice bran extract mixed is less than 0.01% by weight of the total weight of the textile processing agent prepared using the defatted rice bran extract and mixed at the appropriate mixing ratio, the amount of rice polyphenol components that can be attached to the textile product is reduced, and the functionality of the rice polyphenol components cannot be expressed. If the amount of defatted rice bran extract mixed is more than 20.0% by weight of the total weight of the textile processing agent prepared using the defatted rice bran extract and mixed at the appropriate mixing ratio, when the two-liquid textile processing agent is mixed and emulsified in the auxiliary processing, rice polyphenol components cannot be emulsified and precipitate, and therefore the textile processing agent cannot be used.

[0049] The mixing ratio of the two liquid fiber processing agents of the present invention may be appropriately selected according to the material composition, shape, intended use, etc. of the fiber product. When one liquid, which is added as a nucleating agent capable of promoting emulsification in a small amount of the extract, is liquid A and the other is liquid B, the mixing ratio of the two liquids is preferably A:B=1:3 to 1:10, more preferably 1:4 to 1:8, and even more preferably 1:5 to 1:6.

[0050] The method of processing a textile product using the textile processing agent of the present invention may be to apply the textile processing agent to the textile product by a known method using a known processing machine, and may be appropriately selected according to the material composition, form, and intended use of the textile product. For example, when the textile product is in the form of cotton or yarn, the textile product may be subjected to the exhaustion method using a loose wool dyeing machine or a cheese dyeing machine, and when the textile product is in the form of a woven fabric or knitted fabric, the Pad-Dry method in which the aqueous solution for the processing is dipped by padding and the excess chemical solution is squeezed out by a mangle and then the textile product is subjected to the exhaustion method using a liquid flow dyeing machine is preferable, and when the product is a polo shirt, the exhaustion method using a paddle dyeing machine is preferable.

[0051] The auxiliary processing temperature may be appropriately selected according to the specifications of a known auxiliary processing machine, a known auxiliary processing method, and the material composition, shape, and intended use of the textile product, and is preferably in the range of 60°C to 150°C.

[0052] (7) Mordant The mordant used in this invention refers to an agent used as a color-fixing agent to promote the fixation of the dye used in plant dyeing after it has been fixed to the fiber. Among the various mordants that have color-fixing mechanisms, such as tannin and lime, this invention uses a mordant whose main component is a metal salt.

[0053] The inventors had conducted extensive research into using conventional chemical agents known as cationizing agents as a method of fixing rice polyphenol components to textile products. However, they found that cationizing agents have drawbacks, such as a high environmental impact and poor durability for use in ordinary clothing. They also found that the fixed rice polyphenol components fall off during washing. As a result, they gave up on using cationizing agents to fix rice polyphenol components, and began to search for a new method of fixing the components.

[0054] The inventors have focused on the color fixing mechanism of mordants used as color fixing agents, and after extensive research, have found a method of binding the reactive groups of fibers to rice polyphenol components via a mordant. This fixing method allows direct binding between the fibers and the mordant, resulting in stable functionality and a textile product with high washing durability.

[0055] The mordant used in the present invention may be any mordant that contains a metal salt as a main component and can become a metal ion in water to bind the fiber and the rice polyphenol component, and may be appropriately selected according to the material composition, shape, intended use, etc. of the textile product. Examples of metals that can be used as the main component of the metal salt include iron, copper, tin, and titanium. Aluminum, which is used in mordants such as alum, burnt alum, and camellia ash, can also be used as the mordant of the present invention. All of the metals in the mordants used in the present invention are substances that exist in the global environment, so mordants that contain the metal salt as a main component are agents that have a low environmental impact and are suitable for sustainable responses.

[0056] The amount of mordant used may be appropriately selected depending on the material composition, form, and intended use of the textile product, the amount and concentration of the defatted bran extract containing rice polyphenol components used for bonding, and is not particularly limited.

[0057] (8) Method for binding rice polyphenol components to textile products using a mordant The method and steps for bonding rice polyphenol components to textile products in a bath using the mordant of the present invention will be described in detail below with reference to the drawings. The fibers used in the schematic diagrams shown in the drawings were created using cotton yarn as a model.

[0058] FIG. 1 shows a process flow of a method for bonding rice polyphenol component 5 to a textile product in a bath using the mordant of the present invention, and FIG. 2 shows a process flow of a method for fixing rice polyphenol component 5 to a textile product in a bath using a conventional cationizing agent 10. FIG. 1(a) and FIG. 2(a) show cotton thread 1, which is a fiber to which rice polyphenol component 5 is bonded, and rice polyphenol component 5. The reactive group of cotton thread 1 has negative ionicity 2 in the bath, and the reactive group of rice polyphenol component 5 also has negative ionicity 6 in the bath. Therefore, they are electrically repelled in the bath and cannot bond to each other.

[0059] Fig. 1(b) shows a method of using the mordant 3 of the present invention. The mordant 3, which is mainly composed of a metal salt, has positive ionicity 4, which is the ionicity of the metal, in the bath. The inventors focused on the behavior of the ionicity 4 of the mordant 3, which is mainly composed of a metal salt, in the bath, and after repeated intensive research, they succeeded in forming an ionic bond between the mordant 3 and the cotton thread 1 by treating the mordant 3 and the cotton thread 1 before the rice polyphenol component 5 is fixed. This ionic bond makes it possible to convert the reactive groups of the cotton thread 1 into positive ions.

[0060] FIG. 1(c) shows the state of binding of rice polyphenol component 5 using mordant 3 of the present invention. Since the ionicity 2 of cotton thread 1 to which rice polyphenol component 5 is to be fixed becomes positive ionicity by the process of FIG. 1(b), the inventors further conducted intensive research and succeeded in ionic binding between the positive ions of mordant 3 bound to cotton thread 1 and the negative ions of rice polyphenol component 5. As a result, cotton thread 1 and rice polyphenol component 5 are bound via mordant 3, and can be firmly bound. Therefore, a textile product in which rice polyphenol component 5 is bound and fixed using mordant 3 in a bath can exhibit stable functionality and become a textile product with high washing durability.

[0061] 2(b) and 2(c) show a conventional method for fixing rice polyphenol component 5 using cationizing agent 10 for comparison with the present invention. Cationizing agent 10 reacts with the negative ions of cotton thread 1, but coats cotton thread 1 and is fixed there. Rice polyphenol component 5 is adsorbed to the positive ions (ionic 11) of cationizing agent 10 that coats cotton thread 1 and is fixed on cotton thread 1. In this case, cationizing agent 10 and rice polyphenol component 5 are not ionically bonded, but are merely electrically attracted to each other, so they easily fall off due to washing or friction. In view of this current situation, the inventors have discovered a method for bonding rice polyphenol component 5.

[0062] The processing machine used in the step of bonding rice polyphenol component 5 to a textile product via mordant 3 in the bath of the present invention may be a known dyeing machine, and may be appropriately selected depending on the material composition, shape, and intended use of the textile product. For example, when the textile product is in the form of cotton or yarn, a loose wool dyeing machine or cheese dyeing machine may be used, when the textile product is in the form of woven fabric or knitted fabric, a jet dyeing machine may be used, and when the product is a polo shirt, a paddle dyeing machine may be used.

[0063] The amount of defatted rice bran extract used for the textile product treated with mordant 3 can be appropriately selected according to the amount of textile product to which rice polyphenol component 5 is to be bound, and the amount and concentration of the defatted rice bran extract can be appropriately selected according to the material composition, form, and intended use. EXAMPLES

[0064] The present invention will be described in more detail below with reference to examples. The present invention is not limited to these examples. The performance of the rice polyphenol component-imparted product in the examples was evaluated by the following method.

[0065] [1] Evaluation tests and evaluation methods (1) Confirmation of the presence of rice polyphenol components in the extract, yarn, and fabric by color reaction The presence of rice polyphenol components in the defatted bran extracts and yarns / fabrics obtained in the Examples and Comparative Examples was confirmed by color reaction using a gallic acid methanol solution (gallic acid reagent, 50% methanol solution, both manufactured by Fuji Film Wako Pure Chemical Industries, Ltd.), Folin-Ciocalteu reagent (manufactured by Fuji Film Wako Pure Chemical Industries, Ltd.), and a saturated aqueous sodium carbonate solution (anhydrous sodium carbonate, manufactured by Fuji Film Wako Pure Chemical Industries, Ltd.).

[0066] (2) Antioxidant properties of yarn and fabric The yarns and fabrics obtained in the Examples and Comparative Examples were used to measure and evaluate the antioxidant properties of food ingredients using the DPPH radical scavenging activity method, and the yarns and fabrics obtained in the Examples and Comparative Examples were measured and evaluated using the test procedures described below. <Test procedure> 1) Dissolve DPPH (1,1-diphenyl-2-picrylhydrazyl) reagent manufactured by Fujifilm Wako Pure Chemical Industries, Ltd. in ethanol and adjust the concentrations to 160 μmol / L and 80 μmol / L. 2) Next, 100 μL of 160 μmol / L DPPH solution was added to 100 μL of solutions of known concentrations of Trolox reagent manufactured by Fujifilm Wako Pure Chemical Corporation and left to stand for 20 minutes, after which the absorbance of each was measured and a calibration curve was created. 3) A measurement sample of 200 mg was cut out from the yarn or fabric obtained in the Examples and Comparative Examples and placed in a test tube. 5 mL of 80 μmol / L DPPH solution was added to the sample and subjected to ultrasonic waves for 10 minutes. 4) After leaving it to stand for 1 hour, the color of the solution was observed and the absorbance was measured. 5) The color of the solution was observed and the absorbance was measured in the same manner after 3 and 6 hours. 6) The absorbance measured based on the calibration curve was converted into Trolox concentration, and the antioxidant value (radical scavenging rate) was calculated from that value.

[0067] (3) Moisture retention of yarn and fabric (3)-1 Measurement of moisture retention by yarn and fabric The yarns and fabrics obtained in the Examples and Comparative Examples were used to measure the change in moisture content of the yarns and fabrics obtained in the Examples and Comparative Examples using the test method described below, and the moisture retention rate was calculated. <Test procedure> 1) A DP-63P dryer manufactured by Yamato Scientific Co., Ltd. was used. The fabrics obtained in the Examples and Comparative Examples were left in the dryer adjusted to 105°C ± 2°C for 1 hour to dry the measurement samples to an absolutely dry state, and then the masses of the measurement samples were measured. 2) Next, a DP-63P dryer manufactured by Yamato Scientific Co., Ltd. is used, with the environment inside the dryer adjusted to a temperature of 40°C ± 2°C and a relative humidity of 90% ± 5%, and the measurement sample, which has been made bone dry, is left in the dryer to absorb moisture. 3) Measure the change in mass after 1 hour, 2 hours, 3 hours, and 4 hours. 4) The moisture-absorbed measurement sample is transferred to a DP-63P dryer manufactured by Yamato Scientific Co., Ltd., with the environment adjusted to a temperature of 20°C ± 2°C and a relative humidity of 65% ± 5%, and left to allow the measurement sample to release moisture. 5) As with the measurement of moisture absorption, measure the change in mass after 1 hour, 2 hours, 3 hours, and 4 hours. 6) The moisture retention rate was calculated from the measurements in a completely dry state, in a hygroscopic state, and in a hygroscopic state.

[0068] (3)-2 Moisture retention test using fabric Using the fabrics obtained in the Examples and Comparative Examples, a moisture retention test was carried out by a monitor according to the test procedure described below. <Test procedure> 1) Before the test, wash the test area (inner forearm) with lukewarm water using a detergent so that you do not sweat. 2) After lightly wiping off any moisture from the measurement site with soft, non-irritating gauze, the monitor is placed in a measurement environment room set to a room temperature of 22°C ± 2°C and a relative humidity of 55% ± 5%, and left to rest in a seated position for 20 minutes to allow the monitor's measurement site to become accustomed to the environment. 3) The moisture content of the stratum corneum before measurement is measured using an IBS stratum corneum moisture content meter SKICON-200EX. 4) The fabric obtained in each of the Examples and Comparative Examples is wrapped around the measurement site about two times with sufficient tension so as not to compress the measurement site, and the ends are secured in place with paper tape. 5) The monitor is to remain still in a seated position until the designated measurement time with the fabric obtained in the Examples and Comparative Examples wrapped around the measurement site. 6) After one hour, remove the wrapped fabric and immediately measure the moisture content of the stratum corneum at the measurement site. 7) Immediately after the measurement, wrap the cloth around your body and remain at rest in a seated position until the designated measurement time. 8) After 3 hours, remove the wrapped fabric and immediately measure the moisture content of the stratum corneum at the measurement site. 9) The rate of increase or decrease in moisture in the skin stratum corneum was calculated, taking the measured value before the test as 100%.

[0069] (3)-3 Observation of the skin condition of the monitor who underwent the moisturizing test In the monitor moisturizing test using the fabric described above in (3)-2, after test procedures 2) and 8), the skin condition of the monitor's measurement area before and after the test was observed using a measuring microscope CT200HD-50TD manufactured by Shodensha Co., Ltd.

[0070] (4) Antibacterial properties of fabrics and threads The yarns obtained in the examples and comparative examples were used to measure the antibacterial and deodorizing properties against Staphylococcus aureus by the JIS-L-1902 bacteria count absorption method. The yarns were washed 10 times using the standard washing method of the Japan Textile Evaluation Technology Council's "SEK Mark Textile Product Washing Method" to measure the washing durability of the antibacterial properties.

[0071] (5) Durability of the thread The yarns obtained in the examples and comparative examples were used to measure fastness to washing according to JIS-L-0844 washing method B, fastness to friction according to JIS-L-0849 Gakushin type friction method, and fastness to sweat according to JIS-L-0848.

[0072] [2] Evaluation results (1) Confirmation of the presence of rice polyphenol components in the extract, yarn, and fabric by color reaction Example 1 The defatted bran used was Oryza Germ-DLP manufactured by Oryza Oil & Fat Chemical Co., Ltd. The extraction solvent was polyethylene glycol solution "PEG300" manufactured by Wako Pure Chemical Industries, Ltd. Water was added and stirred uniformly, then the defatted bran was added and stirred uniformly to prepare a pre-extraction aqueous solution. The pre-extraction aqueous solution was placed in a closed heating device and heated at 90-100°C for 30 minutes to extract the rice polyphenol components. After cooling, the extraction solution was placed in the jacket (fine) of a basket-type centrifuge "KMN-24" manufactured by Kansai Centrifugal Separator Co., Ltd., and centrifugal filtration was performed to collect the filtrate.

[0073] A preservative was added to the collected filtrate, which was then filtered through a 1 μm filter to obtain the extract of the present invention. A color reaction was carried out on this extract to confirm the presence of rice polyphenol components, which turned green, confirming that the rice polyphenol components were present in the extract.

[0074] The resulting extract was then used to create a textile processing agent. The extract was brought to Rakuto Kasei Kogyo Co., Ltd., where repeated intensive research was conducted on the blending amount and the stability of the processing agent, resulting in the creation of "Laxset FR." The blending amount of the extract in "Laxset FR" was 8.5% by weight of the total weight of "Laxset FR." A color reaction was performed on "Laxset FR" to confirm the presence of rice polyphenol components, which turned green, confirming that rice polyphenol components were present in the resulting extract.

[0075] A T-shirt knitting machine was made using 100% cotton 40 / 1 cotton yarn manufactured by Nisshinbo Textile Inc. and a body-sized single knit circular knitting machine "EXC-3SB" manufactured by Fukuhara Seiki Seisakusho Co., Ltd., and the yarn was refined, set, and dyed using known methods to produce knitted fabric for additional processing.

[0076] Using a low liquor ratio normal pressure liquid flow dyeing machine "SWING-ACE-W LLW-W-2" manufactured by the Nissen Division of Nippon Steel Stainless Steel Processing Co., Ltd., the knitted fabric for additional processing was processed by exhaustion treatment at 40℃ for 10 minutes, using an additional processing recipe of 4% of the total weight of the knitted fabric to be additionally processed with the textile processing agent "Rakuset FR" manufactured by Rakuto Kasei Kogyo Co., Ltd., and 3% of the total weight of the knitted fabric to be additionally processed with the silicon-based fabric softener "ST-1" manufactured by Sun Techno Co., Ltd.

[0077] The knitted fabric after additional processing was removed from the "SWING-ACE-W LLW-W-2" and placed in a three-point suspension type vibration-proof centrifugal dehydrator "YDK-22" manufactured by Iwatsuki Machinery Works, Ltd., and dehydrated so that the amount of the additional aqueous solution remained in the knitted fabric in the same weight as the knitted fabric.

[0078] The dehydrated knitted fabric was dried at 100°C using a net-type dryer "Shrink Surfer SSG" manufactured by Hirano K&E Co., Ltd., and then the knitted fabric was set at 130°C using a connected "clip-type Simplex Tenter" manufactured by Hirano K&E Co., Ltd. to obtain the knitted fabric of Example 1.

[0079] The woven fabric of Example 1 was immersed in a reagent and a color reaction was carried out to confirm the presence of rice polyphenol components. The surface of the woven fabric of Example 1 turned green, confirming the presence of rice polyphenol components in the woven fabric of Example 1.

[0080] Example 2 In Example 1, a plain weave fabric was woven using 100% cotton 60 / 1 cotton yarn manufactured by Nisshinbo Textile Inc. on an "Air Jet Loom JAT-810" manufactured by Toyota Industries Corporation, and the woven fabric was desized, scoured, mercerized, set, and dyed by known methods. The woven fabric of Example 2 was obtained in the same manner as in Example 1, except that the woven fabric was immersed in the aqueous solution for additional processing in a padding tank using a net-type dryer "Shrink Surfer SSG" manufactured by Hirano K&E Co., Ltd., combined with an aqueous solution for additional processing made with an aqueous solution for additional processing in which "Fuji FR" manufactured by Hirano K&E Co., Ltd. was added at 4% of the total liquid volume of the aqueous solution for additional processing, and "ST-1", a silicone-based softener manufactured by Sun Techno Co., Ltd., was added at 3% of the total liquid volume of the aqueous solution for additional processing. The aqueous solution for additional processing was used in an aqueous solution for additional processing made with an aqueous solution for additional processing in which "Fuji FR" manufactured by Sun Techno Co., Ltd. was added at 4% of the total liquid volume of the aqueous solution for additional processing, and "ST-1", a silicone-based softener manufactured by Sun Techno Co., Ltd., was added at 3% of the total liquid volume of the aqueous solution for additional processing. The woven fabric of Example 2 was obtained in the same manner as in Example 1, except that the woven fabric was immersed in the aqueous solution for additional processing in a padding tank, squeezed with the mangle so that the wet pickup rate was 100%, dried at 100°C, and then set at 130°C using a connected "Pin-type Simplex Tenter" manufactured by Hirano K&E Co., Ltd.

[0081] The woven fabric of Example 2 was immersed in a reagent and a color reaction was carried out to confirm the presence of rice polyphenol components. The surface of the woven fabric of Example 2 turned green, confirming the presence of rice polyphenol components in the woven fabric of Example 2.

[0082] Example 3 In order to confirm the liquid stability of "Laxet FR", a DP-63P dryer manufactured by Yamato Scientific Co., Ltd. was used, with the environment inside the dryer adjusted to 50°C±2°C and relative humidity 90%±5%. When "Laxet FR" was left in the dryer to check its condition, the emulsion collapsed and the ingredients precipitated after 20 days. Therefore, in order to improve the liquid stability during transportation and storage at the processing plant, repeated investigations were conducted, and it was discovered that liquid stability could be improved by dividing it into two liquids, leading to the completion of "Laxet FR-A" and "Laxet FR-B". The amount of extract mixed in "Laxet FR-A" and "Laxet FR-B" was 12.8% by weight of the total weight of the mixed recipes for "Laxet FR-A" and "Laxet FR-B".

[0083] "Laxet FR-A" and "Laxet FR-B" were left in a Yamato Scientific DP-63P dryer, which had an environment adjusted to 50°C±2°C and a relative humidity of 90%±5%, and the condition of "Laxet FR-A" and "Laxet FR-B" was checked after 90 days, with no precipitation of the ingredients, and the product was in a stable state. In addition, a color reaction was performed on the mixed solution of "Laxet FR-A" and "Laxet FR-B" recipes to check for the presence of rice polyphenols, which turned green, confirming that rice polyphenols were present in the extract obtained.

[0084] The knitted fabric of Example 3 was obtained in the same manner as in Example 1, except that in Example 1, the textile processing agent "Laxset FR" manufactured by Rakuto Kasei Kogyo Co., Ltd. was replaced with the textile processing agent "Laxset FR-A" manufactured by Rakuto Kasei Kogyo Co., Ltd. in an amount of 3% of the total weight of the knitted fabric to be processed, and the textile processing agent "Laxset FR-B" manufactured by Rakuto Kasei Kogyo Co., Ltd. was used in an aqueous solution of 0.5% of the total weight of the knitted fabric to be processed.

[0085] The woven fabric of Example 3 was immersed in a reagent and a color reaction was carried out to confirm the presence of rice polyphenol components.The surface of the woven fabric of Example 3 turned green, confirming the presence of rice polyphenol components in the woven fabric of Example 3.

[0086] Example 4 100% cotton 40 / 2 yarn manufactured by Nisshinbo Textile Inc. was scoured by a known method using a "high temperature and high pressure cheese dyeing machine LLC" manufactured by Hisaka Manufacturing Co., Ltd., and then treated with an iron mordant for fibers "RK Color MO-F1 (iron)" manufactured by Rakuto Kasei Kogyo Co., Ltd. After mordant treatment, the extract prepared in Example 1 was added to the "high temperature and high pressure cheese dyeing machine LLC" so that it was 30% of the total weight of the yarn to be treated, and a dispersing and leveling dyeing agent "Lotatt OH-104K" manufactured by Lion Corporation was added at a concentration of 1g / L, and the temperature was slid from 30°C to 70°C for 1 hour. After soaping, the treated yarn was oiled with an oiling finishing agent for cheese dyeing "Lonsize N-80" manufactured by Lion Specialty Chemicals Co., Ltd. After that, the treated yarn was dried at 120°C using a "cheese dryer UEFC-A" manufactured by Hisaka Manufacturing Co., Ltd., to obtain rice polyphenol component fixed yarn of Example 4.

[0087] The yarn of Example 4 was bundled and immersed in a reagent to carry out a color reaction to confirm the presence of rice polyphenol components. The surface of the yarn bundle of Example 4 turned green, confirming the presence of rice polyphenol components in the yarn of Example 4.

[0088] Example 5 In Example 4, the rice polyphenol component-fixed yarn of Example 5 was obtained in the same manner as in Example 4, except that the alum mordant for textiles "RK Color MO-A3 (aluminum)" manufactured by Rakuto Chemical Industry Co., Ltd. was used instead of the iron mordant for textiles "RK Color MO-F1 (iron)" manufactured by Rakuto Chemical Industry Co., Ltd., and the extract prepared in Example 1 was used in an amount of 20% of the total weight of the yarn to be treated.

[0089] The yarn of Example 5 was bundled and immersed in a reagent to carry out a color reaction to confirm the presence of rice polyphenol components. The surface of the yarn bundle of Example 5 turned green, confirming the presence of rice polyphenol components in the yarn of Example 5.

[0090] Comparative Example 1 The knitted fabric of Comparative Example 1 was obtained in the same manner as in Example 1, except that the textile processing agent "Luxet FR" manufactured by Rakuto Kasei Kogyo Co., Ltd. was not used.

[0091] Comparative Example 2 As a comparative example for Example 1, a knitted fabric of Comparative Example 2 was obtained in the same manner as Example 1, except that a prototype processing agent having an extract mixture amount of 0.008% by weight of the total weight of the fiber processing agent was used instead of the fiber processing agent "Laxset FR" manufactured by Rakuto Kasei Kogyo Co., Ltd.

[0092] Comparative Example 3 As a comparative example with Example 1, an additional processing was carried out using a prototype processing agent in which the amount of the extract mixed was 11.0% by weight of the total weight of the fiber processing agent instead of the fiber processing agent "Laxset FR" manufactured by Rakuto Kasei Kogyo Co., Ltd., but since solid matter precipitated due to the destruction of the emulsion adhered to the entire fabric at the end, the production of the knitted fabric was discontinued.

[0093] Comparative Example 4 The woven fabric of Comparative Example 4 was obtained in the same manner as in Example 2, except that the textile processing agent "Luxet FR" manufactured by Rakuto Kasei Kogyo Co., Ltd. was not used.

[0094] Comparative Example 5 As a comparative example for Example 3, the knitted fabric of Comparative Example 5 was obtained in the same manner as Example 3, except that prototype processing agents A and B, in which the amount of mixed extract was 0.0085% by weight of the total weight of the mixed fiber processing agent recipe, were used instead of the fiber processing agents "Laxset FR-A" and "Laxset FR-B" manufactured by Rakuto Kasei Kogyo Co., Ltd.

[0095] Comparative Example 6 As a comparative example with Example 3, additional processing was carried out using prototype processing agents C and D, in which the amount of the extract mixed was 20.8% by weight of the total weight of the mixed textile processing agent recipe, instead of the textile processing agents "Luxet FR-A" and "Luxet FR-B" manufactured by Rakuto Kasei Kogyo Co., Ltd., but because solid matter precipitated due to emulsion destruction adhered to the entire fabric as it was finished, the production of knitted fabric was discontinued.

[0096] Comparative Example 7 The yarn of Comparative Example 7 was obtained in the same manner as in Example 4, except that the iron mordant for fibers "RK Color MO-F1 (iron)" manufactured by Rakuto Kasei Kogyo Co., Ltd. and the extract prepared in Example 1 were not used.

[0097] Comparative Example 8 The yarn of Comparative Example 8 was obtained in the same manner as in Example 4, except that the iron mordant for fibers "RK Color MO-F1 (iron)" manufactured by Rakuto Kasei Kogyo Co., Ltd. was not used.

[0098] Comparative Example 9 The yarn of Comparative Example 9 was obtained in the same manner as in Example 4, except that the cationizing agent "Cationone KCN" manufactured by Lion Corporation was used instead of the iron mordant for fibers "RK Color MO-F1 (iron)" manufactured by Rakuto Chemical Industry Co., Ltd. in Example 4.

[0099] When the condition of the cheese of Comparative Example 9 was observed, very severe medium rarefaction had occurred on the upper end surface, lower end surface, outer layer and inner layer of the cheese, making it unsuitable for use.

[0100] (2) Antioxidant properties of yarn and fabric The results of measuring the antioxidant value (radical scavenging rate) of the knitted fabric of Example 1 and the knitted fabrics of Comparative Examples 1 and 2 are shown in Table 1. A graph of the measured values ​​in Table 1 is shown in FIG.

[0101] [Table 1]

[0102] As is clear from Table 1 and Fig. 3, the radical scavenging rate of Example 1 according to the present invention is higher than those of Comparative Examples 1 and 2. Moreover, the radical scavenging rate of Example 1 improves over time. The radical scavenging rate of Comparative Examples 1 and 2 hardly improves over time. It can be said that Example 1 according to the present invention has antioxidant properties.

[0103] Next, the evaluation results of the antioxidant properties (radical scavenging rate [%]) of the woven fabric of Example 2 and the woven fabric of Comparative Example 4 are shown in Table 2 and FIG.

[0104] [Table 2]

[0105] As is clear from Table 2 and FIG. 4, it is understood that the radical scavenging rate of Example 2 according to the present invention is higher than that of Comparative Example 4. Moreover, in Example 2, the radical scavenging rate improves over time. In Comparative Example 4, the radical scavenging rate hardly improves over time. It can be said that Example 2 according to the present invention has antioxidant properties. It can be seen from Examples 1 and 2 that the present invention can impart antioxidant properties regardless of the shape of the dough.

[0106] Next, the evaluation results of the antioxidant properties (radical scavenging rate [%]) of the knitted fabric of Example 3 and the knitted fabrics of Comparative Examples 1 and 5 are shown in Table 3 and FIG.

[0107] [Table 3]

[0108] As is clear from Table 3 and Fig. 5, the radical scavenging rate of Example 3 according to the present invention is higher than those of Comparative Examples 1 and 5. Moreover, the radical scavenging rate of Example 3 improves over time. The radical scavenging rate of Comparative Examples 1 and 5 hardly improves over time. It can be said that Example 3 according to the present invention has antioxidant properties.

[0109] In addition, when comparing the radical scavenging rate results of Example 1 and Example 3, it is found that the radical scavenging rate is improved in Example 3. By making the fiber processing agent into a two-liquid solution, the stability of the processing agent is improved and the amount of the extraction liquid mixed can be increased, which shows that the antioxidant properties can be improved.

[0110] Next, the evaluation results of the antioxidant properties (radical scavenging rate [%]) for the treated yarns of Examples 4 and 5 and Comparative Examples 7 to 9 are shown in Table 4 and FIG.

[0111] [Table 4]

[0112] As is clear from Table 4 and Fig. 6, the radical scavenging rates of Examples 4 and 5 according to the present invention are higher than those of Comparative Examples 7 to 9. Moreover, the radical scavenging rates of Examples 4 and 5 improve over time. The radical scavenging rates of Comparative Examples 7 to 9 hardly improve over time. It can be said that Examples 4 and 5 according to the present invention have antioxidant properties.

[0113] Furthermore, there is almost no difference in the radical scavenging rate between Example 4, which uses the iron mordant for textiles "RK Color MO-F1 (iron)," and Example 5, which uses the alum mordant for textiles "RK Color MO-A3 (aluminum)." It can be seen that the present invention can impart antioxidant properties to textile products regardless of the type of mordant 4 used in the pretreatment.

[0114] Furthermore, when Example 4 and Comparative Example 8 are compared, the radical scavenging rate of Example 4 improves over time, but the radical scavenging rate of Comparative Example 8 hardly improves over time. It can be seen that Example 4, which uses a mordant, has a higher radical scavenging rate than Comparative Example 8, which does not use a mordant, and it can be seen that the rice polyphenol component can be fixed to the cotton yarn by performing pretreatment using a mordant, and antioxidant properties can be imparted to textile products.

[0115] Furthermore, when Example 4 and Comparative Example 9 are compared, it is found that the radical scavenging rate of Example 4 using a mordant is higher than that of Comparative Example 9 using a cationizing agent. It is found that the amount of rice polyphenol components fixed can be increased by performing pretreatment using a mordant compared to the case of performing pretreatment using a cationizing agent, and the antioxidant properties of the textile product can be improved.

[0116] (3) Moisture retention of yarn and fabric (3)-1 Measurement of moisture retention by fabric The moisture content measurement results of the obtained knitted fabric of Example 1 and the knitted fabrics of Comparative Examples 1 and 2 are shown in Table 5. A graph of the measured values ​​in Table 5 is shown in Fig. 7. Note that, with regard to the moisture content measurement results, elapsed times 0 [h] to 4 [h] indicate the moisture content in a high temperature and high humidity environment, and elapsed times 5 [h] to 8 [h] indicate the moisture content in a low temperature and low humidity environment, and the same is true for the subsequent tables of the evaluation results.

[0117] [Table 5]

[0118] 7, Example 1 according to the present invention has a higher moisture content (moisture absorption rate) in a high temperature and high humidity environment than Comparative Examples 1 and 2, and a lower moisture content (moisture release rate) in a low temperature and low humidity environment than Comparative Examples 1 and 2. A high moisture absorption rate and a low moisture release rate means that the amount of moisture held in Example 1 is higher than in Comparative Examples 1 and 2. In other words, it is understood that Example 1 has moisture retention properties, and has higher moisture retention properties than Comparative Examples 1 and 2.

[0119] Next, the evaluation results of moisture retention (moisture content [%] over time) for the woven fabric of Example 2 and the woven fabric of Comparative Example 4 are shown in Table 6 and FIG.

[0120] [Table 6]

[0121] As is clear from Table 6 and Fig. 8, Example 2 according to the present invention has a higher moisture content (moisture absorption rate) in a high temperature and high humidity environment than Comparative Example 4, and a lower moisture content (moisture release rate) in a low temperature and low humidity environment than Comparative Example 4. A high moisture absorption rate and a low moisture release rate means that the amount of moisture held in Example 2 is higher than that of Comparative Example 4. In other words, it is understood that Example 2 has moisture retention properties, and has higher moisture retention properties than Comparative Example 4.

[0122] Furthermore, the results of Examples 1 and 2 show that the present invention can impart moisture retention regardless of the shape of the fabric.

[0123] Next, the evaluation results of moisture retention (moisture content [%] over time) for the knitted fabric of Example 3 and the knitted fabrics of Comparative Examples 1 and 5 are shown in Table 7 and FIG. [Table 7]

[0124] 9, Example 3 according to the present invention has a higher moisture content (moisture absorption rate) in a high temperature and high humidity environment than Comparative Examples 1 and 5, and a lower moisture content (moisture release rate) in a low temperature and low humidity environment than Comparative Examples 1 and 5. A high moisture absorption rate and a low moisture release rate means that the amount of moisture held in Example 3 is higher than in Comparative Examples 1 and 5. In other words, Example 3 has moisture retention properties, and is found to have higher moisture retention properties than Comparative Examples 1 and 5.

[0125] Furthermore, the results of Examples 1 and 2 show that the present invention can impart moisture retention regardless of the shape of the fabric.

[0126] In addition, when comparing the results of moisture content in Example 1 and Example 3, it is found that Example 3 has a higher moisture absorption rate than Example 1, and the moisture release rate remains the same. It is found that by making the fiber processing agent into a two-part solution, the stability of the processing agent is improved and the amount of the extract mixed can be increased, thereby improving the moisture retention.

[0127] Next, the evaluation results of the moisture retention (moisture content [%] over time) for the treated yarns of Examples 4 and 5 and Comparative Examples 7 to 9 are shown in Table 8 and FIG.

[0128] [Table 8]

[0129] As is clear from Table 8 and Fig. 10, Examples 4 and 5 according to the present invention have a higher moisture content (moisture absorption rate) in a high temperature and high humidity environment than Comparative Examples 7 to 9, and a lower moisture content (moisture release rate) in a low temperature and low humidity environment than Comparative Examples 7 to 9. A high moisture absorption rate and a low moisture release rate means that the amount of moisture retained in Examples 4 and 5 is higher than that of Comparative Examples 7 to 9. In other words, it is understood that Examples 4 and 5 have moisture retention properties, and have higher moisture retention properties than Comparative Examples 7 to 9.

[0130] In addition, there is almost no difference in moisture absorption rate and moisture release rate between Example 4, which uses the iron mordant for textiles "RK Color MO-F1 (iron)," and Example 5, which uses the alum mordant for textiles "RK Color MO-A3 (aluminum)." It can be seen that the present invention can impart moisture retention to textile products regardless of the type of mordant used in the pretreatment.

[0131] Comparing the moisture absorption rate and moisture release rate of Example 4 and Comparative Example 8, it is found that Example 4 has a higher moisture absorption rate and a lower moisture release rate than Comparative Example 8. It is found that by carrying out the mordant treatment as a pretreatment, the rice polyphenol component is fixed to the cotton yarn, and the textile product is endowed with moisture retention properties.

[0132] Furthermore, when comparing the moisture absorption rate and moisture release rate of Example 4, in which a mordant was used as a pretreatment agent, with Comparative Example 9, in which a cationizing agent was used as a pretreatment agent, it is found that Example 4 has a higher moisture absorption rate and a lower moisture release rate than Comparative Example 9. It is found that the amount of fixed rice polyphenol components differs depending on the pretreatment agent, and it is found that the fixing method using the mordant of the present invention can impart moisture retention to textile products more than the fixing method using the conventional cationizing agent.

[0133] Comparing Comparative Example 9 with Comparative Example 7, it can be seen that both the moisture absorption rate and moisture release rate of Comparative Example 9 are lower than those of Comparative Example 7. It can be seen that when a cationizing agent is used as a pretreatment agent, the moisture absorption rate is reduced because the cationizing agent coats the yarn surface and makes it hydrophobic. It can be seen that the functionality of the fixed rice polyphenol components cannot be expressed when a conventional cationizing agent is used.

[0134] (3)-2 Moisture retention test using fabric The moisture content of the stratum corneum was measured by a subject using the obtained knitted fabric of Example 3 and the knitted fabric of Comparative Example 1. The subject was a woman in her 30s, and the measurement was performed on the inside of the right forearm.

[0135] The results of the rate of increase or decrease in stratum corneum moisture content calculated from the obtained stratum corneum moisture content measurement results are shown in Table 9. A graph of the results of the rate of increase or decrease in stratum corneum moisture content in Table 9 is shown in FIG.

[0136] [Table 9]

[0137] As is clear from Table 9 and Fig. 11, the stratum corneum moisture content of the skin wearing Example 3 according to the present invention is higher than that of Comparative Example 1, and is showing an increasing tendency. It is understood that the moisturizing property of Example 3 suppresses the evaporation of moisture from the skin and keeps the skin moist. It is understood that the knitted fabric of the present invention is a fabric that has a moisturizing property that can be felt when actually worn.

[0138] Next, a knitted fabric was produced using the obtained yarn of Example 4 and the yarn of Comparative Example 7, and the knitted fabric was used to measure the moisture content of the stratum corneum by a subject. The subject was a woman in her 30s, and the measurement was performed on the inside of the left forearm.

[0139] The rate of increase or decrease in stratum corneum moisture content calculated from the obtained stratum corneum moisture content measurements is shown in Table 10. A graph of the results of the rate of increase or decrease in stratum corneum moisture content in Table 10 is shown in FIG.

[0140] [Table 10]

[0141] As is clear from Table 10 and Fig. 12, the stratum corneum moisture content of the skin wearing Example 4 according to the present invention is higher than that of Comparative Example 7, and is showing an increasing tendency. It is understood that the moisturizing property of Example 4 suppresses the evaporation of moisture from the skin and keeps the skin moist. It is understood that the knitted fabric made from the yarn of the present invention is a fabric that feels moisturizing when actually worn.

[0142] (3)-3 Observation of the skin condition of the monitor who underwent the moisturizing test Figure 13 shows a photograph of the skin on the inside of the right forearm observed under a microscope before wearing the knitted fabric, Figure 14 shows a photograph of the skin on the inside of the right forearm observed under a microscope after wearing Example 3 for three hours, and Figure 15 shows a photograph of the skin on the inside of the right forearm observed under a microscope after wearing Comparative Example 1 for three hours.

[0143] 13, 14, and 15, comparing the skin condition before wearing Example 3 of the present invention with the skin condition after wearing it for three hours, the skin after three hours appears to have a smooth texture, reddish tinge, and healthy skin. Since the skin condition after wearing Comparative Example 1 for three hours does not show the same tendency for change as in Example 3, it is considered that the knitted fabric of Example 3 of the present invention has some effect on the skin.

[0144] (4) Antibacterial properties of fabrics and threads The measurement results of the antibacterial properties (antibacterial activity value) of the obtained knitted fabric of Example 3 and the yarn of Example 4 are shown in Table 11.

[0145] [Table 11]

[0146] As is clear from Table 11, the knitted fabric of Example 3 and the yarn of Example 4 according to the present invention were confirmed to have higher antibacterial properties than the standard cotton fabric, and the performance was maintained even after 10 washes. The knitted fabric and yarn of the present invention meet the blue standard of the "SEK Mark", an antibacterial activity value of 2.2 or more, which is the certification standard for products with antibacterial properties established by the Japan Textile Evaluation Technology Council, and it is clear that their antibacterial properties are recognized by official standards as well.

[0147] (5) Durability of the thread The measurement results of fastness to washing, fastness to friction, and fastness to sweat of the obtained yarn of Example 4 and the yarn of Comparative Example 9 are shown in Table 12.

[0148] [Table 12]

[0149] As is clear from Table 12, the yarn of Example 4 according to the present invention has higher fastness than the yarn of Comparative Example 9. General fastness standards for general clothing are grade 4 or higher for both discoloration and staining, grade 4 or higher for friction fastness when the fabric is dry, and grade 3 to 4 or higher for friction fastness when the fabric is wet, and Example 4 meets all of these standards. It can be seen that the fixing method of the present invention, which bonds the fiber and the rice polyphenol component via the mordant, is a more environmentally friendly and superior method than the conventionally used chemical cationizing agents.

[0150] The textile product of the present invention is an environmentally friendly and sustainable textile product that can be endowed with functional ingredients, namely rice polyphenol components extracted from defatted bran, a discarded food waste, and can express the functionality of the rice polyphenol components to create an excellent functional product.

[0151] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0152] 1 cotton thread 2 Ionicity (of reactive groups on cotton thread in bath) 3 Mordant 4. Ionicity (of the mordant in the bath) 5. Rice polyphenols 6 Ionicity (of reactive groups of rice polyphenol components in the bath) 10. Cationizing Agents 11 Ionicity (of the reactive group of the cationizing agent in the bath)

Claims

1. A method for producing rice using defatted rice bran, comprising: a first step of extracting rice polyphenol components including ferulic acid, which is a functional component, from defatted rice bran; A second step of adding the rice polyphenol component extracted from the defatted bran in the first step to a fiber by additional processing with an additional processing agent to impart functionality of the rice polyphenol component to the fiber; having The second step is a method for producing a textile product, characterized in that the rice polyphenol component-containing extract is added using an auxiliary processing agent having a content of 0.01% by weight or more and 10.0% by weight or less relative to the total weight of the auxiliary processing agent.

2. A method for producing rice bran comprising the steps of: (a) extracting rice polyphenol components, including ferulic acid, a functional component, from defatted bran; A second step of imparting the functionality of the rice polyphenol component extracted from the defatted bran in the first step to a fiber by additional processing with a two-liquid additional processing agent; having The second step is a method for manufacturing a textile product, characterized in that the content of the extract containing the rice polyphenol component is 0.01% by weight or more and 20.0% by weight or less in terms of the weight ratio of the total weight of the auxiliary processing agents in the two liquids in the appropriate mixing ratio.

3. 3. The method for producing a textile product according to claim 1, wherein the functionality of the textile product is at least one of an anti-oxidation property, a moisture retention property, and an antibacterial property.

4. A method for producing rice bran comprising the steps of: (a) extracting rice polyphenol components including ferulic acid, which is a functional component, from defatted bran; a second step in which a mordant is reacted with the fibers in a bath, and then an extract containing the rice polyphenol components extracted from the defatted bran in the first step is applied to the bath in which the fibers reacted with the mordant are present, thereby binding the rice polyphenol components to the fibers; A method for producing a textile product, comprising the steps of:

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