Functional ingredient imparting agent for fibers

Abstract

To provide an innovative functional-component-imparting agent for fiber excellent in practicality that enables a functional component (for example, sericin) imparted to fiber via a cationic polymer to exert a function such as a moisture-retaining effect for skin and a deodorization effect by allowing the functional component to separate gradually from the fiber and touch the skin when the fiber touches the skin.SOLUTION: A functional-component-imparting agent for fiber contains a functional component (for example, sericin) and a cationic polymer (for example, a cationic chitosan derivative) to which the functional component undergoes electrostatic adsorption or electrostatic adhesion.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a functional component imparting agent for fibers, such as a new functional spray imparting agent (spray-type fiber improving agent), which can impart functional components that exert a function on the skin or body when they come into contact with the skin, such as hydrolyzed sericin purified from silk (cocoons, silk threads) or sericin or fibroin from sericin powder, to fibers (fibers of textile products that come into contact with the skin) with a weak force, thereby allowing the sericin to gradually detach and come into contact with the skin that comes into contact with the fiber, thereby not only improving the feel of the fiber but also allowing the fiber to exert functions such as moisturizing and deodorizing effects on the skin that comes into contact with the fiber. [Background technology]

[0002] Silk has long been used in the clothing industry as a luxury material due to its beauty, pleasant texture, and excellent breathability and moisture permeability. However, in recent years, because the main components of silk, sericin and fibroin, are proteins made up of several types of amino acids, silk has been increasingly used as a functional ingredient, for example, by adding it to fibers to take advantage of its functions and properties, and in cosmetics, food, and other non-clothing fields.

[0003] For example, sericin is known to have functions such as moisturizing and anti-odor effects due to its antioxidant properties. In order to impart sericin, which is expected to have such functions, to fibers, research and development has been progressing on functional textile products in which fibers are subjected to cationic surface treatment and a protein layer made of sericin is further formed on the surface (Patent Document 1).

[0004] However, it is not easy to perform such surface treatment on textile products and then form a sericin protein layer on them, which results in problems such as high costs and higher prices, as well as a limited product variety that makes it difficult to expand the customer base.

[0005] On the other hand, when sericin is applied to textile products in factories as described above, it is applied to the fibers with strong bonding power (strong adsorption or strong bonding power), so the sericin can withstand several washes and will not easily come off. However, although this means that the functionality of the fiber itself can be improved by sericin, no direct functional effect can be expected on the skin wearing the fiber.

[0006] On the other hand, if sericin is applied to fibers with a weak bonding force, it will easily come off during washing, resulting in a one-off functional fiber product, which will be even less cost-effective and will further reduce the commercial value, making it less practical and unlikely to become widespread. For this reason, the idea of ​​gradually releasing and contacting functional ingredients with the skin to exert their direct effects on the skin and body was never even considered. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-26054 Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention solves these problems by focusing on spray-on agents and the like. Rather than firmly attaching sericin to textile products in a factory, functional ingredients such as sericin and fibroin can be easily attached by simply spraying. Furthermore, cationic polymers such as cationic chitosan derivatives and the functional ingredient (e.g., sericin) in solution are electrostatically adsorbed or electrostatically attached (connected by a weak ionic bond), which then electrostatically adsorbs or electrostatically attaches (attaches by a weak ionic bond) to fibers, thereby attaching the functional ingredient to fibers with a weak bonding force. Therefore, the bond (adsorption) between the functional ingredient and fibers is weak, providing durability (functionality retention) sufficient to withstand several washings, while still allowing the functional ingredient to be released appropriately and come into contact with the skin, thereby providing functions such as moisturizing and deodorizing effects on the skin and body. The present invention aims to provide an innovative functional ingredient-adding agent for fibers that is extremely practical, cost-effective, and allows the function of the functional ingredient to be exerted on the skin and body via the fibers simply by repeatedly applying the functional ingredient by, for example, spraying an appropriate amount. [Means for solving the problem]

[0009] The gist of the present invention will be explained with reference to the accompanying drawings.

[0010] The composition includes a functional component that exerts a function on the skin or body when it comes into contact with the skin, and a cationic polymer to which the functional component electrostatically adsorbs or adheres, A functional component imparting agent for fibers is configured to be sprayed onto fibers that come into contact with the skin as a spray imparting agent together with moisture, so that the cationic polymer electrostatically adsorbs or adheres to the fibers, thereby imparting the functional component to the fibers via the cationic polymer, and when the fibers come into contact with the skin, the functional component is released from the fibers and comes into contact with the skin, thereby exerting the function, The functional ingredient is hydrolyzed sericin, which gives the fiber flexibility and a pleasant feel, and when it comes off and comes into contact with the skin, it exerts its function and provides a moisturizing effect to the skin, The cationic polymer is Gives the fibers a softening effect It is a cationic chitosan derivative, The hydrolyzed sericin, which is the functional component that is negatively charged or has negative polarity, is applied to the fiber, the surface of which is negatively charged or has negative polarity, via the cationic chitosan derivative, which is the cationic polymer that is positively charged or has positive polarity due to moisture, The hydrolyzed sericin as the functional component is Ionic bonds create weak bonds The functional component, hydrolyzed sericin, is attached to the fiber via the cationic polymer, cationic chitosan derivative, by electrostatic adsorption or electrostatic adhesion, and when the fiber comes into contact with the skin, the functional component, hydrolyzed sericin, is released from the fiber and comes into contact with the skin. and on the skin The present invention relates to a functional component imparting agent for fibers, characterized in that it is configured to exhibit the above-mentioned function.

[0011]

[0012]

[0013]

[0014]

[0015] The present invention also relates to the functional component imparting agent for fibers according to claim 1, characterized in that it is configured as a product that is sprayed with a sprayer and applied to the fibers.

[0016]

[0017]

[0018] The present invention also relates to the agent for imparting a functional component to fibers according to claim 1, characterized in that the hydrolyzed sericin as the functional component is contained in an amount of 1 to 30%.

[0019] The present invention also relates to the functional component imparting agent for fibers according to claim 1, characterized in that it contains a cationic oil component for enhancing the softening effect of the fibers.

[0020] The present invention relates to the functional component imparting agent for fibers according to claim 1, characterized in that it also contains a moisturizing component.

[0021] The present invention also relates to the functional component imparting agent for fibers according to claim 1, characterized in that it contains an antibacterial component.

[0022] The present invention also relates to the functional component imparting agent for fibers described in claim 1, characterized in that the functional component contains, in addition to the hydrolyzed sericin, fibroin, which exhibits the function of repairing skin. [Effects of the Invention]

[0023] Since the present invention is configured as described above, the functional ingredient hydrolyzed sericin can be easily imparted to fibers that come into contact with the skin by spraying it together with water as a spray imparting agent. Furthermore, the cationic chitosan derivative, which is a cationic polymer, and the functional ingredient (hydrolyzed sericin) in solution are electrostatically adsorbed or electrostatically adhered (connected by a weak ionic bond, so to speak) to the fibers, and this electrostatically adsorbs or electrostatically adheres (attached by a weak ionic bond, so to speak) to the fibers, thereby imparting the functional ingredient to the fibers with a weak binding force. Therefore, the bond (adsorption) between the functional ingredient and the fibers is weak, and the functional ingredient has durability (functionality retention) sufficient to withstand several washings, yet the functional ingredient is released to an appropriate extent and can be brought into contact with the skin, thereby exerting functions such as moisturizing and deodorizing effects on the skin and body. Simply by spraying an appropriate amount repeatedly, for example, the function of the functional ingredient can be exerted on the skin and body via the fibers, making this an innovative functional ingredient imparting agent for fibers that is extremely practical and cost-effective. DETAILED DESCRIPTION OF THE INVENTION

[0024] The best mode for carrying out the present invention will now be briefly described with reference to the operation of the present invention.

[0025] The composition includes functional components that exert their functions on the skin or body when they come into contact with the skin, specifically hydrolyzed sericin purified from silk (cocoons, silk threads), and a cationic polymer (specifically, a cationic chitosan derivative that binds to the hydrolyzed sericin with this weak force) to which the sericin electrostatically adsorbs or electrostatically adheres (i.e., adheres by weak ionic bonds). 、 The composition is a spray application agent that is sprayed onto fabrics that come into contact with the skin together with moisture.

[0026] For example, when an appropriate amount is sprayed, the cationic chitosan derivative bonded to the hydrolyzed sericin is electrostatically adsorbed or electrostatically adhered to the fiber (i.e., adhered by a weak ionic bond), and the hydrolyzed sericin is attached to the fiber with a weak bonding force via the cationic chitosan derivative, which is a cationic polymer.

[0027] This functional ingredient ( The functional component (hydrolyzed sericin) binds to the cationic polymer (cationic chitosan derivative) with such weak force, and this cationic polymer (cationic chitosan derivative) also binds to the fiber with such weak force. Therefore, when the fiber to which this functional component (hydrolyzed sericin) is added comes into contact with the skin, the functional component (hydrolyzed sericin) gradually detaches from the fiber and comes into contact with the skin.

[0028] In other words, the functional component (hydrolyzed sericin) which is negatively charged or has negative polarity can be weakly bonded to the fiber whose surface is negatively charged or has negative polarity via the cationic polymer (cationic chitosan derivative) which is positively charged or has positive polarity.

[0029] Furthermore, as mentioned above, this functional component, hydrolyzed sericin, is weakly bound to the fiber and the cationic polymer, the cationic chitosan derivative (because it is attached by weak force, or in other words, weak ionic bonds), and so it falls off after several washes. However, as the fiber comes into contact with the skin during this time, the functional component (hydrolyzed sericin) gradually releases from the fiber, and the functional component (hydrolyzed sericin) released from the fiber can gradually come into direct contact with the skin.

[0030] Therefore, functions such as moisturizing and deodorizing effects can be exerted on the skin that comes into contact with the fibers, and these effects can be imparted to the skin.

[0031] Therefore, by simply applying it to fibers repeatedly and moderately, it is possible to realize a functional ingredient imparting agent for fibers, such as a revolutionary new functional spray imparting agent, which not only improves, for example, softness and feel, but also allows the desired function to be exerted on the skin via the fibers, and is extremely cost-effective. [Example]

[0032] A specific example 1 of the present invention will be described.

[0033] This embodiment is configured to include a functional component that exerts a function on the skin or body when it comes into contact with the skin, and a cationic polymer to which the functional component electrostatically adsorbs or adheres.

[0034] Specifically, hydrolyzed sericin refined from silk (cocoons, silk threads) or hydrolyzed sericin made from sericin powder can be applied to fibers (fibers of textile products that come into contact with the skin) with a weak force, and this functional ingredient, hydrolyzed sericin, can be gradually released and brought into contact with the skin that touches the fiber.This makes it a functional ingredient imparting agent for fibers that can be configured as a new functional spray imparting agent that not only improves the feel of the fiber but also allows the fiber to exert functions such as moisturizing and deodorizing effects (sericin functions) on the skin that touches the fiber.

[0035] That is, in this embodiment, the product is configured to be sprayed as a spray imparting agent and applied to the fibers. When the cationic polymer (cationic chitosan derivative) is applied to the fibers, the cationic polymer (cationic chitosan derivative) electrostatically adsorbs or adheres to the fibers, thereby imparting the functional component (hydrolyzed sericin) to the fibers via the cationic polymer (cationic chitosan derivative). As the fibers come into contact with the skin, the functional component (hydrolyzed sericin) gradually detaches from the fibers, and the detached functional component (hydrolyzed sericin) gradually comes into direct contact with the skin, thereby exerting the function.

[0036] Specifically, as described above, the functional ingredient in this example is hydrolyzed sericin, which gives the fibers flexibility and a pleasant feel, and when it comes off and comes into contact with the skin, it exerts its functions (sericin functions) such as moisturizing and deodorizing effects, thereby providing beneficial effects to the skin (such as moisturizing and deodorizing effects).

[0037] That is, in this example, the composition contains hydrolyzed sericin as the functional component and a cationic polymer (cationic chitosan derivative) to which the sericin electrostatically adsorbs or adheres.

[0038] Therefore, in this embodiment, the spray is applied to the fibers by spraying it as a spray imparting agent, and the cationic polymer (cationic chitosan derivative) is electrostatically adsorbed or electrostatically attached to the fibers, thereby imparting the functional component, hydrolyzed sericin, to the fibers via the cationic polymer (cationic chitosan derivative).As the fibers come into contact with the skin, the hydrolyzed sericin gradually detaches from the fibers and comes into contact with the skin, thereby exerting the function.

[0039] Specifically, the functional component, hydrolyzed sericin, which is negatively charged or has negative polarity, is applied to the fiber, the surface of which is negatively charged or has negative polarity, via the cationic polymer (cationic chitosan derivative), which is positively charged or has positive polarity due to moisture.

[0040] Furthermore, the hydrolyzed sericin, which is the functional ingredient of this embodiment, is configured to be attached to the fiber via the cationic polymer by weak electrostatic adsorption or electrostatic adhesion, which is such that it is detached from the fiber when the fiber comes into contact with the skin and after several home washings.

[0041] Specifically, the hydrolyzed sericin is imparted to textile products that come into contact with or are worn directly on the skin, such as underwear, socks, and towels, by diluting the product with water at a ratio of approximately 1 part of the product of the present invention to 1000 parts of water and applying it to the fibers.For example, when an appropriate amount of the product of this embodiment is sprayed onto such textile products, the hydrolyzed sericin, which is negatively charged or has negative polarity, is imparted to the fibers, whose surfaces are negatively charged or have negative polarity, via the cationic polymer (cationic chitosan derivative), which is positively charged or has positive polarity.

[0042] In other words, the cationic polymer (cationic chitosan derivative) that forms a complex and bonds with the hydrolyzed sericin is electrostatically adsorbed or electrostatically attached to the fiber (i.e., attached by a weak ionic bond), and the hydrolyzed sericin is attached to the fiber with a weak bonding force via the cationic polymer (cationic chitosan derivative).

[0043] Therefore, the hydrolyzed sericin binds to the cationic polymer (cationic chitosan derivative) with such a weak force, and the cationic polymer (cationic chitosan derivative) also binds to the fiber with a weak force. Therefore, when the fiber to which the hydrolyzed sericin is applied comes into contact with the skin, the sericin gradually detaches from the fiber and is gradually imprinted on the skin.

[0044] In this example, the hydrolyzed sericin and the cationic polymer were applied to the surface of the fiber. (The addition of cationic chitosan derivatives reduces surface friction, making the fabric more flexible and providing a softening effect, but to enhance this softening effect, cationic oil is added. Cationic surfactants can also be added, as in common fabric softeners.

[0045] In this embodiment, as described above, the hydrolyzed sericin is gradually released when the fiber comes into contact with the skin, and this sericin is imprinted little by little into the skin. Alternatively, the sericin is attached to the fiber via the cationic polymer (cationic chitosan derivative) with such a weak bonding force (electrostatic adsorption or electrostatic adhesion) that the sericin is almost completely released from the fiber after, for example, several washings.

[0046] Specifically, since the sericin adheres due to the weak bonding force, it will fall off after a few washes, but by wearing the textile product (through contact between the fiber and the skin) in the meantime, the hydrolyzed sericin will gradually release from the fiber and gradually come into contact with the skin, and the product is configured to exhibit new functions that can impart sericin functions to the skin that comes into contact with the fiber, such as a moisturizing effect that keeps the skin moist, an antioxidant effect that suppresses the growth of Staphylococcus aureus, prevents the smell of sweat, suppresses miliaria, and keeps the skin clean.

[0047] Therefore, for example, by simply spraying it with a sprayer, not only can the flexibility of the fiber be increased (the feel on the skin can be improved), but this sericin function (new function) can also be repeatedly imparted to the skin via the fiber.

[0048] Furthermore, this embodiment achieves such revolutionary effects, that is, it can be applied to fibers using a simple method, and by deliberately applying it to fibers with a moderately weak bonding force, it is possible to allow sericin to be released moderately (gradually, little by little) and to continuously exert its function on the skin, thereby realizing a revolutionary new functional fabric softener that can provide the skin with functional benefits such as the moisturizing effect of this sericin and the deodorizing effect due to its antioxidant properties (it can achieve sericin application with a weak bond).

[0049] In this example, we discovered a cationic polymer (cationic chitosan derivative) that can realize such a softener. Specifically, through further experiments, we found a cationic polymer that can achieve this effect, a coating system with excellent moisturizing and softening effects, and an excellent ability to form a complex with hydrolyzed sericin and attach sericin to fibers with the weak bonding force described above. As described above, we used a double blend of this cationic chitosan derivative and hydrolyzed sericin.

[0050] That is, it was realized by combining hydrolyzed sericin, a natural moisturizing material, with a cationic chitosan derivative, which not only makes clothing soft and smooth, giving it a silk-like texture (reducing friction on the skin and leaving it smooth to the touch), but also gradually imprints sericin onto the skin as it is worn, providing the moisturizing and deodorizing effects of sericin's functions. If sericin were simply added, it would quickly fall off after just one wash, but the combination of sericin with a cationic chitosan derivative allows the sericin to fall off the fibers in moderation, so that it is imprinted little by little onto the skin just by wearing it, resulting in a new functional ingredient imparting agent that can continuously provide moisturizing, antibacterial and deodorizing effects to the skin.

[0051] More specifically, in this embodiment, the composition contains 1 to 30% liquid hydrolyzed sericin (which may be extracted by placing cocoons in water and heating them at high temperature and pressure in a pressure cooker, and then dissolving the dried sericin in powder), and 0.1 to 5.0% cationic chitosan derivative (for example, chitosan isostearamide hydroxypropyltrimonium chloride). It also contains the cationic oil and cationic surfactant mentioned above to enhance flexibility, tea catechins to enhance antibacterial properties, glycerin and glycol to enhance moisturizing properties, and fibroin (hydrolyzed fibroin), a functional ingredient that is refined from cocoons and silk threads, like sericin, and is gradually imprinted on the skin to provide a skin repair effect.

[0052] Furthermore, as mentioned above, by improving the ingredients and water content, for example, by diluting it 10 times with alcohol, spraying it as a mist with a sprayer, and then drying it, a product can be constructed in which the functional ingredients can be weakly bonded to the fabric. In the case of silk products, for example, they are not only expensive but also difficult to handle, such as washing, but by simply spraying it with a sprayer in this way, even synthetic fabric products can easily be given the feel, texture, and functionality of silk.

[0053] The present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

Claims

1. The composition includes a functional component that exerts a function on the skin or body when it comes into contact with the skin, and a cationic polymer to which the functional component electrostatically adsorbs or adheres, A functional component imparting agent for fibers is configured to be sprayed onto fibers that come into contact with the skin as a spray imparting agent together with moisture, so that the cationic polymer electrostatically adsorbs or adheres to the fibers, thereby imparting the functional component to the fibers via the cationic polymer, and when the fibers come into contact with the skin, the functional component is released from the fibers and comes into contact with the skin, thereby exerting the function, The functional ingredient is hydrolyzed sericin, which gives the fiber flexibility and a pleasant feel, and when it comes off and comes into contact with the skin, it exerts its function and provides a moisturizing effect to the skin, the cationic polymer is a cationic chitosan derivative that imparts a softening effect to the fiber, The hydrolyzed sericin, which is the functional component that is negatively charged or has negative polarity, is applied to the fiber, the surface of which is negatively charged or has negative polarity, via the cationic chitosan derivative, which is the cationic polymer that is positively charged or has positive polarity due to moisture, The functional ingredient imparting agent for fibers is characterized in that the functional ingredient, hydrolyzed sericin, is imparted to the fiber via the cationic polymer, cationic chitosan derivative, by electrostatic adsorption or electrostatic adhesion due to ionic bonds that realize weak bonds, and when the fiber comes into contact with the skin, the functional ingredient, hydrolyzed sericin, detaches from the fiber and comes into contact with the skin, thereby exerting its function on the skin.

2. 2. The functional component imparting agent for fibers according to claim 1, which is configured as a product that is sprayed onto the fibers by a sprayer as a spray imparting agent.

3. 2. The functional component imparting agent for fibers according to claim 1, wherein the functional component, the hydrolyzed sericin, is contained in an amount of 1 to 30%.

4. 2. The functional component imparting agent for fibers according to claim 1, further comprising a cationic oil component for enhancing the softening effect of the fibers.

5. 2. The functional component imparting agent for fibers according to claim 1, further comprising a moisturizing component.

6. 2. The functional component imparting agent for fibers according to claim 1, further comprising an antibacterial component.

7. 2. The functional component imparting agent for fibers according to claim 1, characterized in that the functional component contains, in addition to the hydrolyzed sericin, fibroin, which exhibits the function of repairing skin.