JP7144668B1 - Fabrics, accessories, bedding, and hygiene masks - Google Patents

Abstract

[Problem] Using active ingredient-releasing fibers, a fiber that satisfies sufficient functions of an active ingredient, has sufficient strength, has a texture suitable for accessories and bedding, has a low environmental load, and is excellent in productivity. To provide fabrics and accessories and bedding using the fabrics. SOLUTION: The present invention comprises a weft yarn in which a first cellulose fiber containing vitamin E as an active ingredient released under predetermined conditions and a second cellulose fiber containing no active ingredient are blended, and a second cellulose fiber. The warp yarn spun only with fibers is woven by twill weave or satin weave, and the weft yarn contains 20% to 40% by weight of the first cellulose fiber and 60% to 80% by weight of the second cellulose fiber. It is characterized by being blended so that it becomes [Selection diagram] Fig. 1

Description

Article 30, paragraph 2 of the Patent Act applies On March 9, 2021, Altstar Co., Ltd. became a joint-stock company at the World Production Partners Co., Ltd. Tokyo store (World Kita Aoyama Building, 3-5-10 Kita Aoyama, Minato-ku, Tokyo) Sold to World Production Partners On June 29, 2021, Altstar Co., Ltd. became World Production Partners Co., Ltd. at World Production Partners Co., Ltd. Tokyo store (3-5-10 Kita-Aoyama Kita-Aoyama, Minato-ku, Tokyo). Sales: Altstar Co., Ltd. will sell to World Production Partners Co., Ltd. on July 2, 2021 at World Production Partners Co., Ltd. Tokyo store (3-5-10 Kita-Aoyama Kita-Aoyama, Minato-ku, Tokyo) Altstar Co., Ltd. sold to World Production Partners Co., Ltd. at World Production Partners Co., Ltd. Tokyo store (3-5-10 Kita-Aoyama Kita-Aoyama, Minato-ku, Tokyo) on July 10, 2020 July 30 Altstar Co., Ltd. sells to World Production Partners Co., Ltd. at World Production Partners Co., Ltd. Tokyo store (3-5-10 Kita-Aoyama, Minato-ku, Tokyo World Kita-Aoyama Building) on August 5, 2021 Co., Ltd. Altstar Co., Ltd. sells to World Production Partners Co., Ltd. at the World Production Partners Tokyo store (World Kita-Aoyama Building, 3-5-10 Kita-Aoyama, Minato-ku, Tokyo)

The present invention relates to fabrics, accessories, bedding, and sanitary masks, and for example, fibers (hereinafter referred to as "special It can be applied to accessories and bedding composed of functional fibers.

Conventionally, as a special functional fiber, for example, the fiber of Patent Document 1 exists.

Patent Document 1 describes a fiber capable of controlling the release of an active ingredient by controlling conditions such as temperature (hereinafter referred to as "active ingredient-releasing fiber"). In Patent Document 1, the active ingredient-releasing fiber is preferably a lyocell fiber spun by a lyocell spinning process.

2018-501413 publication

At present, when trying to produce a fabric only from the active ingredient-releasing fiber of Patent Document 1, there are problems such as a very high cost and insufficient strength for weaving. This is because the active-ingredient-releasing fiber described in Patent Document 1 is originally a cotton-like fiber and is used as batting for clothes and bedding, and is not optimized for spinning and weaving. be. In addition, the active ingredient-releasing fiber in Patent Document 1 is cellulose fiber (for example, Lyocell (registered trademark)), but depending on the application and design of the product to be applied, the fabric using the active ingredient-releasing fiber may be used. The texture may be inappropriate. Furthermore, it is conceivable to manufacture personal accessories and bedding from fabrics using blended yarn in which active ingredient-releasing fibers are blended with other types of fibers, but it is possible to mix active ingredient-releasing fibers with other types of fibers. Patent Literature 1 does not disclose a configuration that satisfies the function of the active ingredient (influence on the user's body; hereinafter referred to as "active ingredient function") while being blended. Furthermore, more and more apparel companies are currently emphasizing highly sustainable business activities (so-called sustainability), and it is desirable that fabrics be made of raw materials with low environmental impact. In addition, even if we develop a fabric that satisfies functions and strength, it is an important factor because it cannot meet the demand unless it has excellent productivity.

In view of the above problems, by using active ingredient-releasing fibers, it is possible to satisfy sufficient active ingredient functions, provide sufficient strength, provide appropriate texture for accessories and bedding, and reduce the burden on the environment. , fabrics with excellent productivity and accessories and bedding using the fabrics are desired.

The fabric of the first present invention comprises a twill weave or a satin weave with weft yarns in which cellulose fibers containing vitamin E as an active ingredient released under predetermined conditions and rayon fibers are blended and warp yarns composed of rayon fibers. wherein the weft yarn is a blend of 40% by weight of the cellulose fiber and 60% by weight of rayon , and the entire fabric contains 0.5% by weight or more of vitamin E. The fabric is characterized by a tensile strength of at least 150N and a tear strength of at least 7N .

The accessory of the second aspect of the present invention is characterized by being constructed using the fabric of the first aspect of the present invention.

The bedding according to the third aspect of the present invention is characterized by being constructed using the fabric of the first aspect of the present invention.

A sanitary mask of the fourth aspect of the present invention is characterized by being constructed using the fabric of the first aspect of the present invention.

According to the present invention, active ingredient-releasing fibers are used to achieve sufficient active ingredient functions, have sufficient strength, have a texture suitable for accessories and bedding, have a low environmental load, and are highly productive. It is possible to provide excellent fabrics and accessories and bedding using the fabrics.

1 is a plan view of a fabric according to an embodiment; FIG. 1 is a diagram (plan view) showing a configuration example of an accessory (T-shirt) according to an embodiment; FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is the figure (perspective view) which showed the structural example of the bedding (bed) which concerns on embodiment. 1 is a diagram (perspective view) showing a configuration example of a sanitary mask according to an embodiment; FIG. FIG. 2 is a diagram (image diagram) showing a configuration when the fabric according to the embodiment is a twill weave. FIG. 4 is a diagram (image diagram) showing a configuration in a matrix format when the fabric according to the embodiment is twill weave. FIG. 4 is a diagram (image diagram) showing a configuration when the fabric according to the embodiment is satin weave. FIG. 2 is an image diagram showing a configuration in a matrix format when the fabric according to the embodiment is satin weave. FIG. 2 is a diagram (image diagram) showing a configuration when the fabric according to the embodiment is plain weave. FIG. 2 is an image diagram showing a configuration in a matrix format when the fabric according to the embodiment is plain weave. FIG. 4 is a diagram showing in tabular form the relationship between the amount of active ingredient-releasing fiber blended in the weft yarn of the fabric according to the embodiment and the amount (concentration) of the active ingredient.

(A) Main Embodiments One embodiment of the fabric, accessories, bedding, and sanitary mask according to the present invention will be described in detail below with reference to the drawings.

(A-1) Configuration of Embodiment FIG. 1 is a plan view of a fabric 10 according to an embodiment.

FIG. 2 is a plan view of an undergarment 20 as a personal accessory constructed using the fabric 10 according to the embodiment. In FIG. 2, underwear 20 is shown as an example of the personal wear of the present invention, but the personal wear of the present invention includes not only underwear but also underwear other than underwear, scarves, socks, hats, etc. and the head (hair).

FIG. 3 shows bedding 30 (bed) constructed using the fabric 10 according to the embodiment. In the bedding 30, the cloth 10 can be used for elements such as sheets 31, duvet covers 32, and pillowcases 33, for example. In this specification, "bedding" is explained as a concept including "elements constituting bedding" such as sheets 31, duvet covers 32, pillowcases 33, and the like. Therefore, in this embodiment, it can be said that the sheet 31, the futon cover 32, and the pillowcase 33 are inventions relating to separate bedding.

FIG. 4 shows a sanitary mask 40 constructed using the fabric 10 according to the embodiment. In the satellite mask, for example, the cloth 10 can be applied to the cover portion 41 that covers the mouth of the user (wearer).

Next, the configuration of the fabric 10 will be described.

Here, it is assumed that the cloth 10 is applied to the underwear 20 or bedding 30 that directly touches the user's body. In this embodiment, the cloth 10 is described as being a woven fabric in which weft threads 101 (weft threads) and warp threads 102 (warp threads) are woven in a predetermined weaving method.

Here, the fabric 10 is described as containing active ingredient-releasing fibers. Here, it is assumed that the active ingredient-releasing fibers constituting the fabric 10 contain so-called vitamin E (specifically, tocopherol acetate) as an active ingredient. In addition, the active ingredient constituting the active ingredient-releasing fiber may contain other substances in addition to vitamin E. Hereinafter, among the active ingredients, an ingredient for achieving the intended function (here, skin care function; hereinafter also referred to as "intended function") shall be referred to as "intended functional active ingredient". Here, the intended functional active ingredient is vitamin E. In addition, the active ingredient constituting the active ingredient-releasing fiber may be composed of a plurality of types of ingredients. That is, the active ingredient constituting the active-ingredient-releasing fiber may contain a plurality of types of the intended functional active ingredient, or may contain ingredients other than the intended functional active ingredient.

As an active ingredient (intended functional active ingredient), the effect of keeping human skin in good condition (so-called skin care effect) is achieved by keeping the active ingredient-releasing fiber containing vitamin E in contact with the human body (skin). be. Therefore, here, the active ingredient function of the active ingredient-releasing fibers constituting the fabric 10 is the skin care function.
[Strength performance required for fabric]
Here, strength performance requirements required for the fabric 10 will be described.

As described above, in this embodiment, the fabric 10 is assumed to be used for body accessories (underwear 20, etc.) or bedding (sheets 31 of bedding 30, duvet cover 32, pillowcases, etc.). In addition, there are certain methods and standards for quality standards (inspection standards) such as strength generally required for personal accessories such as clothes and fabrics for bedding.

Woven fabrics (textiles) usually have a certain level of "tensile strength" (a standard for evaluating the strength at which the fabric (fabric) breaks when pulled) as a strength quality standard (inspection standard); the unit is [ N]: Newton) and "tear strength" (criteria for evaluating the breaking strength when tearing a fabric; the unit is [N]: Newton). Here, as a method for evaluating "tensile strength", the evaluation method by "JIS L 1096 A method" (so-called "strip method") is applied, and as a method for evaluating "tear strength", JIS L 1096 D method (so-called " Pendulum method”) shall be applied.

In general, undergarments and bedding made of thin fabrics (generally less than 180 g/m2) are required to have a tensile strength of 150 N or more and a tear strength of 7 N or more. Such criteria are, for example, as shown in Reference 1 and the like.
[Reference 1] Boken Quality Evaluation Organization, "Boken Standard (Textile Products) Fabric/Product Inspection Quality Standard List Excerpt", https://www.boken.or.jp/wp-content/uploads/2021 /08/qstandardjapan.pdf”, [Online], INTERNET, [searched November 30, 2021], URL: https://www.boken.or.jp/wp-content/uploads/2021/08/qstandardjapan. pdf
Therefore, in this embodiment, the fabric 10 is described as needing to meet the criteria of a tensile strength of 150 N or higher and a tear strength of 7 N or higher (hereinafter referred to as "target strength performance").
[Fabric productivity requirements]
However, even if the final state of the fabric 10 satisfies the target strength performance, it will be difficult to mass-produce the fabric 10 unless it is configured so that it can be woven using a general automatic loom. . Furthermore, it is preferable for mass-producing the fabric 10 if the fabric 10 can be woven at a certain speed or higher and with a certain productivity (yield) or higher using a general automatic loom. In general, during weaving with an automatic loom, if a certain amount of stress (tension) is applied to a fabric (fabric) during weaving, the fabric will break during weaving, resulting in poor productivity (yield). Furthermore, when weaving a cloth with an automatic loom, the frequency of breakage may vary depending on the weaving method. In other words, when weaving the fabric 10 using a general automatic loom, maintaining productivity above a certain level (for example, weaving at a general speed and reducing the frequency of breakage during weaving to a certain level or less) can be said to be related to the characteristics and weave of the weft 101 and warp 102 . The configuration of the weft threads 101 and the warp threads 102 will be described later.
[How to weave the fabric]
Various configurations are conceivable for weaving the fabric 10, but here, it is assumed that any one of twill weave, satin weave, and plain weave, which are general weaves for underwear and bedding, is applied.

Here, the structure when the fabric 10 is woven by twill weave, satin weave, and plain weave will be described with reference to FIGS. 5 to 10. FIG.

FIG. 5 is a diagram (image diagram) showing the configuration when the fabric 10 is woven by twill weaving, and FIG. It is a figure (image figure) at the time of showing with. FIG. 7 is a diagram (image diagram) showing the configuration when the cloth 10 is woven with satin weave, and FIG. 8 shows the configuration (distribution of weft 101 and warp 102) when the cloth 10 is woven with satin weave in matrix form. It is a figure (image figure) at the time of showing with. FIG. 9 is a diagram (image diagram) showing the configuration when the cloth 10 is tentatively woven by plain weaving, and FIG. It is a figure (image figure) at the time of showing with.

5 to 10, the direction parallel to the weft 101 is called the "horizontal direction" or "X direction", and the direction parallel to the warp 102 is called the "vertical direction" or "Y direction". shall be

FIG. 5(a) is an enlarged view (image view) showing a part of the fabric 10 woven by the twill weave. FIG. 5(b) is a view showing the end face when the fabric 10 shown in FIG. 5(a) is cut in the longitudinal direction (Y direction) (end view viewed from line A1-A1' in FIG. 5(a)). is. FIG. 5(c) is a view showing the end face when the fabric 10 shown in FIG. 5(a) is cut in the horizontal direction (X direction) (end view viewed from line B1-B1' in FIG. 5(a)). is.

FIG. 7(a) is an enlarged view (image view) showing a part of the fabric 10 woven with satin weave. FIG. 7(b) is a diagram showing an end face when the fabric 10 shown in FIG. 7(a) is cut in the longitudinal direction (Y direction) (an end view viewed from the line A2-A2' in FIG. 7(a)). is. FIG. 7(c) is a view showing the end face when the fabric 10 shown in FIG. 7(a) is cut in the horizontal direction (X direction) (end view taken along line B2-B2' in FIG. 7(a)). is.

FIG. 9(a) is an enlarged view (image view) showing a part of the fabric 10 woven by the plain weave. FIG. 9(b) is a view showing an end face when the fabric 10 shown in FIG. 9(a) is cut in the longitudinal direction (Y direction) (an end view taken along line A3-A3' in FIG. 9(a)). is. FIG. 9(c) is a view showing the end face when the cloth 10 shown in FIG. 9(a) is cut in the horizontal direction (X direction) (end view taken along line B3-B3' in FIG. 9(a)). is.

5 to 10, the front direction viewed from the direction of FIGS. 5(a), 6, 7(a), 8, 9(a), and 10 is referred to as the upper side. , FIGS. 5(a), 6, 7(a), 8, and 9(a) The back side direction as viewed from the direction of FIG. 10 is called the lower side. 5(b), 5(c), 7(a), 7(c), 9(b) and 9(c), arrows are drawn in directions corresponding to upper and lower sides. attached.

As shown in FIGS. 5 and 6, in this embodiment, the twill weave is woven by regularly skipping the warp 102 and the weft 101 at a ratio of 2:1 (weaving by switching the top and bottom of the warp 102 and the weft 101). It shall be configured to In addition, as shown in FIGS. 7 and 8, in this embodiment, the satin weave is woven by regularly skipping the warp 102 and the weft 101 at a ratio of 4: 1 (the warp 102 and the weft 101 are turned upside down. weaving). Furthermore, as shown in FIGS. 9 and 10, in this embodiment, the plain weave is woven by regularly weaving the warp 102 and the weft 101 at a ratio of 1:1 (weaving by switching the top and bottom of the warp 102 and the weft 101). It shall be configured.
[Target performance required for fabric]
As mentioned above, the intended function of the fabric 10 is a skin care function and the intended functional active ingredient is vitamin E.

The active-ingredient-releasing fiber described in Patent Document 1 releases the contained active ingredient (here, vitamin E) upon contact with the human skin, thereby transferring the active ingredient to the human skin. . At this time, the amount of the active ingredient transferred to the human skin correlates with the amount (concentration) of the active ingredient originally contained in the active ingredient-releasing fibers.

Hereinafter, the proportion (amount, concentration) of the active ingredient (vitamin E) is represented by "weight %" based on the entire active ingredient-releasing fiber (100% by weight). For example, when 1 g of active ingredient-releasing fiber is contained in 100 g of active ingredient-releasing fiber, it can be said that the ratio (amount, concentration) of the active ingredient in the active ingredient-releasing fiber is 1% by weight.

Here, the active ingredient-releasing fiber used by the inventor of the present application was lyocell fiber (cotton-like fiber) with a vitamin E content of 11% by weight. Here, it is assumed that the fabric 10 is constructed using the active ingredient-releasing fiber (containing 11% by weight of vitamin E).

Here, as a criterion for the skin care function of the fabric 10 to be effective, the existing quasi-drugs are used as references to examine how much of the active ingredient for the intended function needs to be contained. Specifically, examples of quasi-drugs (so-called "cosmetics") containing vitamin E (tocopherol acetate) and the like as active ingredients will be examined as references. The Ministry of Health, Labor and Welfare of Japan has published documents such as Reference 2 regarding the degree of active ingredients that should be contained in so-called medicated cosmetics. That is, if the fabric 10 contains an active ingredient (vitamin E in this case) at a concentration equal to or higher than that of a medicated cosmetic (quasi-drug), the fabric 10 maintains sufficient skin care performance. I can say
[Reference 2] Evaluation and Licensing Division, Pharmaceutical and Food Safety Bureau, Ministry of Health, Labor and Welfare, “List of Active Ingredients in So-called Medicinal Cosmetics (Notification No. 1225001 from the Evaluation and Licensing Division of PFSB; December 25, 2008)”, https://www.boken .or.jp/wp-content/uploads/2021/08/qstandardjapan.pdf”, [Online], INTERNET, [searched December 20, 2021], <URL: https://www.mhlw.go.jp /file/06-Seisakujouhou-11120000-Iyakushokuhinkyoku/yakuyou_kounou_1.pdf>
According to Reference 2, vitamin E (described as "tocopherol acetate" in Reference 2) to be contained in "creams, milky lotions, hand creams, and cosmetic oils" is 0.3% to 0.5%. Therefore, this criterion is applied here. In addition, although the standard of Reference Document 2 also includes a "pack" as an item, unlike the "pack" that is temporarily worn, the cloth 10 applied to underwear, bedding, sanitary masks, etc. It is more suitable to use the criteria of "creams, milky lotions, hand creams, cosmetic oils" because they come into contact with the skin. In general, the criteria for medicinal cosmetics (quasi-drugs), such as Reference 2, are the minimum criteria (evidence) that can be said to have effects on the human body based on active ingredients. Therefore, by setting the target functional active ingredient (vitamin E in this case) to be contained in the fabric 10 to about 0.3% to 0.5% by weight or more, skin care performance equivalent to that of medicinal cosmetics can be expected. It will be.

While the distribution of active ingredients in creams and emulsions is generally uniform, the fabric 10 contains fibers other than the active ingredient-releasing fibers, so the distribution of the active ingredient for the desired function (compared to creams and emulsions) There is variability in Therefore, here, in order to ensure that the amount of the target functional active ingredient is 0.3% by weight or more in the entire fabric 10, the upper limit of 0.5% by weight or more in Reference 2 shall be applied. do. In other words, if the amount of the active ingredient for the intended function is 0.5% by weight or more in the entire fabric 10, the skin of the user who uses the underwear or bedding made of the fabric 10 will have the active ingredient for the intended function. Since the fabric with a concentration of 0.5% or more is in contact, it can be said that there is a skin care effect.

For the above reasons, the content (concentration) of the target functional active ingredient (here, vitamin E) in the fabric 10 as a whole is required to be 0.5% by weight or more.
[Construction and weaving of warp/weft]
As described above, the fabric 10 satisfies sufficient functions of the active ingredient, has sufficient strength, has a texture suitable for accessories and bedding, has a low environmental load, and is excellent in productivity during production. Must meet requirements. On the other hand, as described above, the active ingredient-releasing fiber itself has problems such as being extremely expensive and lacking strength for spinning and weaving.

Therefore, the inventors of the present application have studied to achieve the above object by applying yarn blended with active ingredient-releasing fibers to the fabric 10 . Although it is possible to mix and spun various fibers with active ingredient-releasing fibers, it is necessary to create fibers that meet the requirements of "appropriate texture for accessories and bedding" and "low environmental impact". There is From various fibers, the inventors of the present application have found active ingredient-releasing fibers (fibers blended with active ingredient-releasing fibers) that satisfy the requirements of "appropriate texture for accessories and bedding" and "low environmental load". We have found cellulose fibers (regenerated cellulose fibers) similar to natural fibers. Cellulose fibers (regenerated cellulose fibers) include, for example, rayon, polynosic, cupra, and lyocell. From these cellulose fibers, the inventor of the present application selected rayon as the most suitable fiber for blending with the active ingredient-releasing fiber. This is because, among cellulosic fibers, rayon generally has the best feeling as underwear.

However, in an experiment conducted by the inventor of the present application, a yarn obtained by blending rayon and an active ingredient-releasing fiber (hereinafter simply referred to as "blended fiber") was applied to the weft 101 and the warp 102, and when an attempt was made to weave the fabric 10, the results were as follows. It has been found that no combination of blend ratios (rayon and active ingredient-releasing fibers) or weave schemes can meet all of the above five requirements. Originally, rayon is weaker in strength (tensile strength) than other fibers such as cotton, and when a yarn spun by blending rayon with active ingredient-releasing fiber is applied to the weft 101 and warp 102, 100% rayon The strength becomes weaker than that of the thread. Therefore, when applying a yarn obtained by blending active ingredient-releasing fibers to rayon and spun at a ratio such that the target functional active ingredient is contained in 0.5% by weight or more, as the weft 101 and the warp 102, during weaving with a loom Even if it breaks, or if it can be woven, the above strength performance (tensile strength of 150 N or more and tear strength of 7 N or more) cannot be satisfied.

Therefore, in view of the above problems, the inventor of the present application repeated experiments with various combinations, and as a result, using the above-mentioned blended fiber for the weft 101 and using 100% rayon yarn for the warp 102, the above-mentioned We have found that constructions of fabric 10 that meet all five requirements are preferred. In particular, the inventor of the present application also discovered that it is preferable to weave the weft yarn 101 of the blended fiber and the warp yarn 102 of 100% rayon with a twill weave or a satin weave rather than a plain weave in terms of strength. did.

Hereinafter, the ratio (amount) of the rayon or active ingredient-releasing fiber is represented by "weight %" based on the entire weft 101 (100 weight %). For example, if 100g of weft 101 contains 40g of active ingredient releasing fiber (60g of rayon), we can say that weft 101 is 40% by weight of active ingredient releasing fiber (60% by weight of rayon).

The inventor of the present application also discovered that it is preferable to apply a blended fiber spun (blended) with 60% by weight of rayon (40% by weight of active ingredient-releasing fiber) as the weft yarn 101 of the blended fiber. Furthermore, the inventor of the present application has also discovered that it is preferable to apply yarn spun with the same specification as the weft yarn 101 (40 count (133 denier)) as the weft yarn 101 of the blended fiber and the warp yarn 102 of 100% rayon. did.

In summary, the inventors of the present application have found that the most suitable form (the best form for satisfying the above five requirements) when constructing the fabric 10 using a blended fiber of rayon and active ingredient-releasing fiber, "weft 101 is applied with 60% by weight of rayon (40% by weight of active ingredient-releasing fiber) and spun with a count of 40 (133 denier)", "Warp yarn 102 is 100% rayon and spun with a count of 40 (133 denier). and weaving the weft 101 and the warp 102 with a twill weave or a satin weave" (hereinafter referred to as a "best configuration").

In an experiment conducted by the applicant (hereinafter referred to as "this experiment"), in the case of the fabric 10 having a twill weave vest structure, "tensile strength: 254 N", "tear strength: 9.9 N", "blend amount of weft 101: 33.95% by weight (mixed spinning amount of warp 102: 66.05% by weight)". In this experiment, the content C [% by weight] of the desired functional active ingredient in the entire fabric 10 can be calculated by the following formula (1). Here, K2 is fixed at 0.11 (11% by weight). In the case of the fabric 10 having a twill weave vest structure, K1=0.4 (40% by weight) and K3=0.3395 (33.95% by weight), so C=1.49% by weight.

C [% by weight]=K1×K2×K3×100 (1)
K1: Blending amount of active ingredient-releasing fiber in weft 101 K2: Content of vitamin E in active ingredient-releasing fiber K3: Blending amount of weft 101 in fabric 10 (blending ratio)
In this experiment, in the case of the fabric 10 having a satin weave vest structure, "tensile strength: 214 N", "tear strength: 23.5 N", "blend amount of weft 101: 30.20 wt% (blend of warp 102 Amount: 69.80% by weight)”. In this case, according to the formula (1), the content C of the target functional active ingredient in the entire fabric 10 is 1.33% by weight.

In this experiment, the fabric 10 was also woven in a plain weave using the same weft 101 and warp 102 as in the above-described vest configuration. In this case, in the plain weave fabric 10, "tensile strength: 258 N", "tear strength: 5.3 N", "blend amount of weft 101: 33.81 wt% (blend amount of warp 102: 66.19 wt%) "Met. In this case, according to formula (1), the content C of the target functional active ingredient in the entire fabric 10 is 1.49% by weight. However, in this experiment, as described above, even with the weft yarn 101 having the same configuration, in the case of plain weave, it was not possible to satisfy the strength requirement of "tear strength: 5.3 N".

In this experiment, when manufacturing the fabric 10 having the above-described vest structure, spinning and weaving were performed at a general speed using a general spinning machine and loom, but no breakage occurred during the process. I didn't. Specifically, in this experiment, a “Silocompact” was used as a spinning machine for spinning the weft yarn 101, and spinning was performed at a speed of 0.01 kg/hour. In addition, in this experiment, an existing rayon fiber (40 count (133 denier) with the same specification as the weft 101) was applied to the warp 102 . Furthermore, in this experiment, the weft 101 and the warp 102 were woven using a "rapier loom" at 4 m/hour.

Next, the permissible range (upper limit and lower limit) of the blended amount of the active ingredient-releasing fiber in the blended fiber applied to the weft 101 will be described.

First, the upper limit of the blending amount of the active ingredient-releasing fibers in the weft 101 will be examined.

Since the amount (concentration) of the active ingredient in the fabric 10 increases as the blended amount of the active ingredient-releasing fibers in the weft 101 increases, strength conditions become a problem. However, in the inventor's experiment, in the above vest configuration, "50% by weight of rayon (50% by weight of active ingredient-releasing fiber) and 40 count (133 denier) spun yarn was applied to the weft 101". It is known that when spinning and weaving (spinning and weaving under the same conditions as above), breakage or the like occurs during spinning and weaving, and the fabric 10 cannot be stably manufactured. In other words, it can be seen from this that the upper limit of the blending amount of the active ingredient-releasing fiber in the weft 101 is 40% by weight in terms of design.

Next, the lower limit of the blended amount of the active ingredient-releasing fiber in the weft 101 will be examined.

As the blended amount of the active ingredient-releasing fibers in the weft 101 decreases, the ratio of 100% rayon fibers having higher strength than the active ingredient-releasing fibers increases, so the strength of the fabric 10 improves. concentration) is a problem.

FIG. 11 is a table showing the amount (concentration) of the active ingredient in the entire fabric 10 when the blend amount of the active ingredient-releasing fiber of the weft 101 is varied from 10% to 40% by weight. .

Figures 11(a) and 10(b) show the amount (concentration) of the active ingredient when the fabric 10 is twill weave and satin weave, respectively.

From the results of FIG. 11( a ), when the fabric 10 is a twill weave, in order to make the amount (concentration) of the active ingredient 0.5% by weight or more, the blended amount of the active ingredient-releasing fiber in the weft 101 is 20%. It can be seen that it is necessary to set the weight % or more. Further, from the results of FIG. 11(b), even when the fabric 10 is a satin weave, in order to make the amount (concentration) of the active ingredient 0.5% by weight or more, the weft 101 is blended with active ingredient-releasing fibers It can be seen that the amount should be at least 20% by weight.

In other words, it can be seen from this that the lower limit of the blended amount of the active ingredient-releasing fiber in the weft 101 is 20% by weight in terms of design.

As described above, in the fabric 10, even when the blended amount of the active ingredient-releasing fiber of the weft 101 is changed between 20% and 40% by weight with respect to the above vest configuration, the above five requirements are satisfied. can meet.

(A-2) Effects of First Embodiment According to this embodiment, the following effects can be obtained.

By weaving the fabric 10 with "the above vest configuration" or "a configuration in which the blend amount of the active ingredient-releasing fiber of the weft 101 is changed between 20% and 40% by weight with respect to the above vest configuration" , the fabric 10 uses active ingredient-releasing fibers, which is the original purpose, satisfies sufficient active ingredient functions, has sufficient strength, has a suitable texture for accessories and bedding, and has a low environmental load. It can simultaneously satisfy the five requirements of being small and having excellent productivity.

In particular, in the fabric 10 having the above-described vest structure, while applying a blended fiber (a fiber obtained by blending rayon and an active ingredient-releasing fiber) to the weft 101, by applying 100% rayon fiber to the warp 102, sufficient It facilitates providing sufficient strength while satisfying the function of the active ingredient.

(B) Other Embodiments The present invention is not limited to the above-described embodiments, and modified embodiments such as those illustrated below can also be mentioned.

(B-1) In the above embodiment, fibers obtained by blending rayon and active ingredient-releasing fibers are used as the weft yarns 101 that make up the fabric 10. However, the weft yarns 101 are made by blending cellulose fibers other than rayon. You may do so. Also, for the warp yarns 102, cellulose fibers other than rayon may be applied. It is preferable to use the same cellulose fiber blended in the weft yarn 101 and the cellulose fiber applied to the warp yarn 102 in order to unify the texture.

(B-2) In the above embodiments, examples of applying the fabric of the present invention to accessories, bedding, and sanitary masks used by humans have been described. , dogs, cats, monkeys, etc.) may be applied to accessories, bedding, sanitary masks, and the like. In general, since vitamin E can be an active ingredient for animals other than humans, similar effects can be obtained even when animals use (wear) accessories, bedding, and sanitary masks to which the fabric of the present invention is applied. Play.

Cloth: 10, underwear (accessory): 20, bed (bedding): 30, sheet: 31, duvet cover: 32, pillow cover: 33, sanitary mask: 40, cover part: 41, weft: 101, warp: 102.

Claims (5)

in fabric,
A weft yarn in which a first cellulose fiber containing vitamin E as an active ingredient released under predetermined conditions and a second cellulose fiber containing no active ingredient are blended, and a warp yarn spun only from the second cellulose fiber. is woven by twill weave or satin weave,
The weft yarn is blended so that the first cellulose fiber is 20% to 40% by weight and the second cellulose fiber is 60% to 80% by weight ,
The entire fabric contains 0.5% by weight or more of vitamin E,
The fabric has a tensile strength of 150N or more and a tear strength of 7N or more
The fabric of the description characterized by 2. The fabric of claim 1, wherein said second cellulosic fiber is rayon. An accessory characterized by comprising the fabric according to claim 1 or 2. Bedding comprising the fabric according to claim 1 or 2. A sanitary mask comprising the fabric according to claim 1 or 2.

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