JP5645682B2 - Woven fabric - Google Patents

Description

  The present invention relates to a woven fabric excellent in antibacterial properties that is effective for use in, for example, hospital linen and clothing.

2. Description of the Related Art Conventionally, woven fabrics having antibacterial properties, which include copper in spinnable fibers such as natural fibers and synthetic fibers (see, for example, Patent Documents 1 to 4 below).
In recent years, for example, this type of antibacterial woven fabric is sometimes used for linen items such as hospital sheets, pillow covers, towels, and clothing items such as examination clothes and patient clothes.

JP 2005-206987 A JP-A-61-71056 JP 2004-149945 A JP 2006-124900 A

However, the conventional woven fabric has the following problems.
That is, for example, for woven fabrics used in hospitals and the like, there is a demand for rapid sterilization of bacteria, but a simple antibacterial effect is still obtained when copper is included in a spinnable fiber. I couldn't say it was.
In addition, for this type of woven fabric, there is a request to increase the touch and appearance, but in order to ensure the antibacterial effect described above, when the content of copper in the woven fabric is increased, The woven fabric became harder and wrinkles were more likely to occur, making it impossible to meet demands.

  This invention is made | formed in view of such a situation, Comprising: It aims at providing the woven fabric which can improve the touch and the good-looking appearance, fully ensuring an antimicrobial effect.

In order to achieve the above object, the present invention proposes the following means.
That is, the present invention is a woven fabric woven using a mixed yarn formed by twisting a copper-containing wire containing at least copper and a spinning fiber, and the diameter of the copper-containing wire is 100 μm or less. is the number of times twisted wound around the copper-containing wire to the spinnability fibers is twice / cm or more, the mixed yarn occupancy state, and are more than 50%, the mixed yarn adjacent to each other The copper-containing wire is spirally wound around the spinnable fiber extending in a straight line, and the copper-containing wire is Z-twisted around the spinnable fiber. S is twisted .

  According to the woven fabric according to the present invention, the woven fabric is woven using the mixed yarn formed by twisting the copper-containing wire and the spinnable fiber. Therefore, when this woven fabric is used for, for example, a linen product or clothing, the antibacterial effect of copper is obtained, while elasticity is imparted by the spinnable fiber and the woven fabric is prevented from being stiff and comfortable. Can be secured.

  Specifically, when the diameter of the copper-containing wire is 100 μm or less, the mixed yarn can be stretched, and the mixed yarn can be easily woven using a general loom. Moreover, desired elasticity can be provided to the woven fabric formed by weaving the mixed yarn. Accordingly, it is easy to manufacture the woven fabric, and it is possible to ensure the touch and the appearance of the woven fabric.

  In addition, since the number of twists in which the copper-containing wire is wound around the spinnable fiber is 2 times / cm or more, the interval between adjacent exposed portions of the copper-containing wire is reduced, and the exposed area Is secured and it is easy to come into contact with bacteria. Therefore, bacteria attached to the woven fabric can be sterilized more rapidly.

  And since the occupation rate of a mixed yarn is 50% or more, the above-mentioned antimicrobial effect can fully be ensured. That is, for example, when the occupation ratio of the mixed yarn is less than 50%, the arrangement of the copper-containing wires becomes rough or the amount of copper with respect to the bacteria becomes insufficient, and the antibacterial effect is not sufficiently obtained. Sometimes. On the other hand, according to the present invention, copper-containing wires can be closely arranged with each other, the amount of copper with respect to bacteria is ensured, and the antibacterial effect is improved.

The pitch of the mixed yarn together fit Ri neighboring, Ru der below 5 mm.

As a result , the mixed yarns are densely arranged and the gap between these copper-containing wires is reduced, so that the escape area of the bacteria is reduced, the bacteria can be sterilized more quickly, and the antibacterial effect is enhanced. . That is, for example, when the pitch between adjacent mixed yarns is set to exceed 5 mm, a germ escape space is formed between the mixed yarns, and it may take time until sterilization.
The pitch between adjacent mixed yarns is more preferably 1 mm or less.

The front kidou containing lines, with respect to the spinnability fibers extending linearly, that are spirally wound.

As a result , the woven fabric is easily expanded and contracted, and the copper-containing wire is prevented from being cut by the expansion and contraction, so that the goodness and comfort of the woven fabric can be stably improved over a long period of time.

  Moreover, in the woven fabric according to the present invention, a plurality of patterned lines that protrude from the fabric surface and extend along the surface direction extend in different directions, and the length of the patterned line may be less than 3 mm. Good.

  In this case, since a plurality of lines are formed extending in different directions, regularity is lost in the direction in which the bacteria escape, and the time until sterilization is shortened. Furthermore, since the length of these striated lines is set to be as short as less than 3 mm, it becomes difficult for bacteria to escape along the concave grooves along the striated lines, and the antibacterial effect is further enhanced. That is, for example, when the length of the striated line is 3 mm or more, the length of the groove along the striated line is increased accordingly, so that the bacteria can easily escape along the groove, etc. May take time.

  The woven fabric according to the present invention may be woven by satin weaving.

In this case, it is possible to easily and reliably form the above-described patterned line. Therefore, this woven fabric has a high antibacterial effect and is easy to manufacture.
Moreover, the woven fabric which concerns on this invention WHEREIN: It is good also as the said copper containing wire being wound helically so that a clearance gap may be opened between the outer peripheral surfaces of the said spinable fiber.
In the woven fabric according to the present invention, the mixed yarn may be twisted after the short fiber containing copper is attached to any one or more of the copper-containing wire and the spinnable fiber. It is good also as being formed combining.

  According to the woven fabric according to the present invention, it is possible to enhance the touch and appearance while ensuring a sufficient antibacterial effect.

In the woven fabric which concerns on one Embodiment of this invention, (a) The enlarged view which shows the mixed yarn which comprises a woven fabric, (b) The perspective view which shows the woven fabric formed by weaving mixed yarn. It is a figure which shows the other example of the mixed yarn used for the woven fabric which concerns on this invention. It is a figure which shows the mixed yarn used for the woven fabric which concerns on the reference example of this invention. It is a perspective view which shows the other example of the woven fabric which concerns on this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is the organization chart which shows the state woven by the woven fabric which concerns on this invention (a) plain weave, (b) The organization chart which shows the state woven by twill. It is an organization chart showing the state where the woven fabric concerning the present invention was woven by the satin weave. FIG. 7 is a structural diagram showing an example in which the woven fabric according to the present invention is woven with a satin weave other than the satin weave shown in FIG. 6. FIG. 8 is a structural diagram showing an example in which the woven fabric according to the present invention is woven with a satin weave other than the satin weave shown in FIGS. 6 and 7. It is the (a) graph and the (b) table which show the result of antibacterial effect confirmation test A. It is the (a) graph and the (b) table which show the result of antibacterial effect confirmation test A. It is (a) graph and (b) table which show the result of antibacterial effect confirmation test B.

Embodiments of the present invention will be described below with reference to the drawings.
The woven fabric 10 according to the present embodiment is used for linen items such as hospital sheets, pillow covers, towels, and clothing items such as examination clothes and patient clothes.
As shown in FIGS. 1 (a) and 1 (b), this woven fabric 10 includes a copper-containing wire 2 containing at least copper, and a spinnable fiber 3 made of natural fiber or / and synthetic fiber (chemical spinning wire). It is woven using a mixed yarn 1 formed by twisting. In the following description, there is a case where twisting fibers (wires) to form a yarn is referred to as “cross-twisting”, and knitting yarns into a woven fabric is referred to as “cross-weaving”.

  In FIG. 1A, the mixed yarn 1 uses a pure copper wire as the copper-containing wire 2, and uses a bundle of nylon fibers (hereinafter abbreviated as “nylon fiber”) as the spinnable fiber 3. Specifically, the pure copper wire 2 is Z-twisted (indicated by reference numeral 2a in FIG. 1) and S-twisted (indicated by reference numeral 2b in FIG. 1) around the nylon fiber 3 (cover). Ring), thereby, a mixed yarn 1 formed by twisting pure copper wire 2 and nylon fiber 3 is formed.

Here, in the reference example of the present invention, the pure copper wire 2 may be only one of the Z twist 2a and the S twist 2b, but the winding direction of the twisted wire (bundle) of the nylon fiber 3 is not limited. When the pure copper wire 2 is wound (twisted) in the untwisting direction (reverse direction), the woven fabric 10 is more preferable because it has a soft touch. In the illustrated example, the pure copper wire 2 of the present embodiment is spirally wound around a nylon fiber 3 that extends in a straight line along the outer peripheral surface of the nylon fiber 3. Further, as the pure copper wire 2, one each of the Z twist 2 a and the S twist 2 b is disposed.
In addition, in the reference example of this invention, the structure which used only one of Z twist and S twist as the copper containing wire 2 may be sufficient. In this case, although the other of Z twist and S twist is not specifically limited, For example, the metal wire containing metal other than copper, an alloy wire, a spinable fiber, etc. may be sufficient.

The pure copper wire 2 is made of annealed copper wire, and the diameter thereof is set in the range of 8 μm to 100 μm. Preferably, the diameter of the pure copper wire 2 is set within a range of 8 μm to 50 μm, and more desirably within a range of 8 μm to 30 μm.
The number of twists that the pure copper wire 2 is wound around the nylon fiber 3 is 2 times / cm or more. Preferably, the upper limit of the number of twists is 15 times / cm or less.

What is shown in FIG. 1B is a woven fabric 10 in which the above-described mixed yarn 1 is interwoven with a loom using a warp (warp) and a weft (weft). In the illustrated example, the mixed yarn 1 is plain woven to form a woven fabric 10. In the woven fabric 10, the pitch between adjacent mixed yarns 1 (warp yarns or weft yarns) is 5 mm or less. In FIG. 1B, in order to explain the weaving form (structure) of the mixed yarn 1, a large gap is shown between the adjacent mixed yarns 1 in parallel. Since, after weaving, the gap is approximately zero to the diameter of the mixed yarn 1, when the mixed yarn 1 is used for all of the warp and the weft as in this embodiment, the pitch is mixed in both the vertical and horizontal directions. The diameter of the yarn 1 is about 1 to 2 times.
Further, the ratio of warp to weft in the woven fabric 10 is set within a range of 0.8 to 1.2: 1.

  Moreover, in the woven fabric 10, the ratio (occupancy ratio) to the whole mixed yarn 1 is 50% or more. The occupation ratio of the mixed yarn 1 referred to here is the ratio of the volume occupied by the mixed yarn 1 to the total volume of the yarn used for weaving the woven fabric 10. When yarns with a wire diameter are used, the ratio of the number of the mixed yarns 1 to the total number of these yarns is 50% or more. In the case of this embodiment, since the mixed yarn 1 is used for all the warp and weft of the woven fabric 10, the occupation ratio of the mixed yarn 1 is approximately 100%.

As described above, according to the woven fabric 10 according to this embodiment, using the mixed yarn 1 formed by twisting the pure copper wire 2 that is a copper-containing wire and the nylon fiber 3 that is a spinnable fiber. It is woven. Therefore, when this woven fabric 10 is used for, for example, a linen product or a clothing product, the antibacterial effect by copper is obtained, and elasticity is imparted by the spinnable fiber so that the woven fabric 10 can be prevented from being stiff. Can ensure comfort.
Examples of bacteria to be sterilized include methicillin-resistant Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa, bacteria belonging to the genus Bacillus, and other bacteria.

  Further, since the pure copper wire 2 has a diameter of 100 μm or less, the mixed yarn 1 can be stretched, and the mixed yarn 1 can be easily woven using a general loom. Moreover, desired elasticity can be provided to the woven fabric 10 formed by weaving the mixed yarn 1. Accordingly, the woven fabric 10 can be easily manufactured, and the woven fabric 10 can be ensured in touch and good appearance. Specifically, when the diameter of the pure copper wire 2 is set to exceed 100 μm, it becomes difficult to weave the mixed yarn using a general loom, and the produced woven fabric is stiff and ensures comfort. become unable. In this case, if the woven fabric has a crease (wrinkle), it becomes difficult to restore.

  Moreover, when the diameter of the pure copper wire 2 is 8 μm or more, the pure copper wire 2 can be easily manufactured and the strength is ensured. That is, for example, when the diameter of the pure copper wire 2 is set to be less than 8 μm, it is difficult to technically manufacture because the diameter is small, and the woven fabric 10 produced at the time of manufacturing the mixed yarn 1 and the woven fabric 10 or produced. In use, there is a possibility that the pure copper wire 2 is cut.

  Here, when the diameter of the pure copper wire 2 is set in the range of 8 μm to 50 μm, the following effects are exhibited in addition to the above-described effects. That is, for example, even when the woven fabric 10 is bent and used, it is prevented that wrinkles are hardly removed due to plastic deformation of the pure copper wire 2. Specifically, when the diameter of the pure copper wire 2 is set to exceed 50 μm, when the woven fabric 10 is folded and used, there is a possibility that the wrinkle cannot be fully stretched using an iron or the like (it is difficult to remove the wrinkle). is there.

  Furthermore, when the diameter of the pure copper wire 2 is set within the range of 8 μm to 30 μm, the following effects are obtained in addition to the above-described effects. That is, sufficient elasticity is imparted to the woven fabric 10, and even when the woven fabric 10 is folded and used, it is difficult to wrinkle. Even if the woven fabric 10 is wrinkled, the wrinkle can be easily removed with an iron or the like. Moreover, since the softness | flexibility of the woven fabric 10 is ensured, the feeling of touch improves and comfort is fully improved. Specifically, when the diameter of the pure copper wire 2 is set to exceed 30 μm, there is a possibility that the flexibility of the woven fabric 10 cannot be ensured sufficiently.

  Moreover, since the pure copper wire 2 consists of an annealed copper wire, compared with the case where a hard wire is used, for example, the pure copper wire 2 is used when the mixed yarn 1 and the woven fabric 10 are manufactured or when the produced woven fabric 10 is used. It is harder to cut. Moreover, the touch of the woven fabric 10 becomes soft and comfort is ensured.

Further, the number of twists by which the pure copper wire 2 is wound around the nylon fiber 3 is not particularly problematic in production if it is 0.5 times / cm or more. However, as in this embodiment, the number of twists is 2 times / cm. By being set to cm or more, the following effects are produced. That is, in one pure copper wire 2 wound around the nylon fiber 3, the interval between the adjacent exposed portions on the fabric surface 10a of the woven fabric 10 is reduced, and the pure copper wire 2 per unit length of the mixed yarn 1 is reduced. The exposed area is secured, and it becomes easy to come into contact with bacteria. Thereby, the microbe adhering to the woven fabric 10 can be sterilized more rapidly.
If the number of twists is set to less than 2 times / cm, the antibacterial effect of copper may not be sufficiently obtained, and it may take time to sterilize.

  The upper limit of the number of twists is preferably 15 times / cm or less. Thereby, while the antibacterial effect of copper is fully improved, manufacturing cost can be reduced, unintentional cutting of the pure copper wire 2 can be prevented, and comfort can be ensured. That is, when the number of twists is set to exceed 15 times / cm, the manufacturing cost increases, and the flexibility of the woven fabric 10 may be impaired. Further, when the woven fabric 10 is manufactured or used, an external force is easily applied to the pure copper wire 2 and the pure copper wire 2 is easily cut. When the pure copper wire 2 is cut, the end portion of the cut pure copper wire 2 protrudes from the fabric surface 10a, which may irritate the skin of the person who uses the woven fabric 10 and may cause discomfort.

  And since this woven fabric 10 has an occupation ratio of the mixed yarn 1 of 50% or more, the above-mentioned antibacterial effect can be sufficiently ensured. That is, for example, when the occupation ratio of the mixed yarn 1 is less than 50%, the arrangement of the pure copper wire 2 becomes rough or the amount of copper with respect to the bacteria is insufficient, and the antibacterial effect is sufficiently obtained. There may not be. On the other hand, according to the present embodiment, the pure copper wires 2 can be closely arranged with each other, and the amount of copper with respect to the bacteria is ensured, and the antibacterial effect is improved.

Moreover, since the pitch of the adjacent mixed yarns 1 in the woven fabric 10 is 5 mm or less, the following effects are produced. That is, since the mixed yarns 1 are closely arranged and the gap between these pure copper wires 2 is reduced, the escape area of the bacteria is reduced, the bacteria can be sterilized more quickly, and the antibacterial effect is enhanced. . That is, for example, when the pitch between adjacent mixed yarns 1 is set to exceed 5 mm, a germ escape space is formed between the mixed yarns 1 and it may take time until sterilization.
The pitch between adjacent mixed yarns 1 is more preferably 1 mm or less. In this case, the escape space of the bacteria is reduced, and the pure copper wire 2 of the mixed yarn 1 is surely brought into contact with the bacteria, so that the time required for sterilization is greatly shortened.

  Further, since the mixed yarn 1 is formed by spirally winding the pure copper wire 2 around the linearly extending nylon fiber 3, the woven fabric 10 woven with the mixed yarn 1 is easy to expand and contract. In addition, it is possible to prevent the pure copper wire 2 from being cut by this expansion and contraction. Therefore, the touch and comfort of the woven fabric 10 can be ensured stably over a long period of time.

In addition, this invention is not limited to the above-mentioned embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.
For example, in the above-described embodiment, a pure copper wire is used as the copper-containing wire 2 of the mixed yarn 1 and a nylon fiber is used as the spinnable fiber 3. However, the present invention is not limited to this. In other words, the copper-containing wire 2 only needs to contain at least copper, and a copper alloy other than pure copper, copper annealing (copper oxide), copper plated with other metals, or the like may be used. As the spinnable fiber 3, a synthetic fiber made of natural fiber such as cotton or polyester fiber other than nylon fiber may be used.

In the above-described embodiment, the mixed yarn 1 is spirally wound around the nylon fiber 3 extending linearly so that the pure copper wire 2 is along the outer peripheral surface of the nylon fiber 3. However, the present invention is not limited to this.
FIG. 2 shows another example of the mixed yarn 1 used for the woven fabric 10 of the present invention.
In the example shown in FIG. 2, the copper-containing wire 2 is spirally formed with respect to the linearly-spinnable fiber 3 so as to circulate with a gap between the copper-containing wire 2 and the outer peripheral surface of the spinnable fiber 3. It is wound. In this case, the stretchability of the mixed yarn 1 can be further increased, and the flexibility of the woven fabric 10 is improved.

In order to produce the mixed yarn 1 as shown in FIG. 2, for example, first, a bundle of FTY (filament twisted yarn) made of polyester is used as the spinnable fiber 3, and water-soluble vinylon fiber ( In a state where the bundles (not shown) are arranged, a pure copper wire which is the copper-containing wire 2 is wound spirally around these.
Next, an intermediate made of polyester FTY3, water-soluble vinylon fiber and pure copper wire 2 is immersed in warm water of about 60 ° C. to dissolve only the water-soluble vinylon fiber.
Thereby, the mixed yarn 1 in which a gap is formed between the outer peripheral surface of the polyester FTY 3 and the pure copper wire 2 is produced.

In the reference example of the present invention shown in FIG. 3, the mixed yarn 1 includes a pure copper wire as the copper-containing wire 2 and a polyester FTY as the spinnable fiber 3 having substantially the same diameter and being in a spiral shape. While extending, it is twisted and formed so that a clearance gap may be opened between outer peripheral surfaces. In this case, further flexibility can be imparted to the mixed yarn 1.

In order to produce the mixed yarn 1 as shown in FIG. 3, the water-soluble vinylon fiber described above may be used. That is, after the pure copper wire 2 and the spinnable fiber 3 are spirally wound around the water-soluble vinylon fiber, only the water-soluble vinylon fiber is dissolved as described above, whereby the mixed yarn 1 shown in FIG. Can be easily manufactured.
In addition, you may twist together helically like a well-known twisted thread in the state which mutually contacted the outer peripheral surfaces, without opening a clearance gap between the pure copper wire 2 and polyester FTY3 as mentioned above. . In this case, water-soluble vinylon fibers are not necessary.

Moreover, in the above-mentioned embodiment, as the copper containing wire 2 of the mixed yarn 1, one of the Z twist 2a and one of the S twist 2b is disposed one by one. However, the present invention is not limited to this. Alternatively, a plurality of Z twist 2a and S twist 2b may be provided. Further, the shape and number of the spinnable fibers 3 are not limited to the above-described embodiment.
That is, the mixed yarn 1 only needs to be formed by twisting the copper-containing wire 2 and the spinnable fiber 3, and the form and the number of used yarns are not limited.

Moreover, in the above-mentioned embodiment, although the woven fabric 10 was woven using the mixed yarn 1 for all the warp and weft, it is not limited to this.
The woven fabric 20 of the present invention shown in FIG. 4 is formed by weaving a mixed yarn 1 and a cotton yarn (spun fiber) 21. The cotton yarn 21 is composed of a strand (bundle) of cotton fibers. In the example shown in the drawing, the mixed yarn 1 and the cotton yarn 21 are alternately arranged in each of the warp yarn and the weft yarn. In this case, while ensuring the antibacterial property of the woven fabric 20, flexibility and touch can be enhanced. As the spinnable fiber 21, synthetic fiber (bundle) or the like may be used instead of cotton yarn. Further, the mixed yarn 1 and the cotton yarn 21 may not be arranged alternately. That is, the ratio of the number of mixed yarns 1 used in the woven fabric 20 to the number of cotton yarns 21 used is not limited to 1: 1. Further, for example, the mixed yarn 1 is used for all the warp yarns (weft yarns) and the cotton yarn 21 is used for all the weft yarns (warp yarns), and the mixed yarn 1 and the cotton yarn 21 are interwoven to form the woven fabric 20. May be.

Moreover, after making the mixed yarn 1 twist, after attaching the short fiber containing copper to any one or more of the copper-containing wire 2, the spinnable fiber 3 and the metal-containing wire other than copper, These may be twisted together. In addition, as said short fiber, it is preferable to use a thing with a diameter of 8 micrometers-100 micrometers and a length of 30 mm-150 mm, for example.

Further, although the woven fabrics 10 and 20 are woven by plain weaving, it is not limited to this. That is, the woven fabrics 10 and 20 may be woven by, for example, a twill weave other than a plain weave, a satin weave, a satin weave (Amundsen) or the like.
Here, what is shown in FIGS. 5 (a), 5 (b) and 6 is an organization chart of plain weave, twill weave, and satin weave (representing how to weave warp and weft). In the plain weave shown in FIG. 5 (a), the pattern 11 protruding from the fabric surfaces 10a and 20a of the woven fabrics 10 and 20 along the surface direction is inclined with respect to the warp and weft (indicated by a two-dot chain line in the figure). In the direction from the upper right to the lower left and the direction from the upper left to the lower right). Further, in the twill weave shown in FIG. 5B, the pattern 11 is along one direction (direction indicated by a two-dot chain line from the upper right to the lower left) in the direction inclined with respect to the warp and the weft. Are formed. Further, in the satin weave shown in FIG. 6, a plurality of pattern lines 11 are formed extending in different directions, and the length of each pattern line 11 is set to be shorter than 3 mm.

As shown in FIG. 6, by forming a plurality of pattern lines 11 extending in different directions, regularity is lost in the direction in which the bacteria escape, and the time until sterilization is shortened. Furthermore, by setting the length of these striated lines 11 as short as less than 3 mm, it becomes difficult for bacteria to escape along the concave grooves along the striated lines 11 and the antibacterial effect is further enhanced. That is, for example, when the length of the striated line is 3 mm or more, the length of the groove along the striated line is increased accordingly, so that the bacteria can easily escape along the groove, etc. May take time.
Further, such a patterned line 11 can be easily and reliably formed by weaving the woven fabrics 10 and 20 with a satin weave. Therefore, the woven fabrics 10 and 20 woven with a satin weave can obtain a high antibacterial effect and are easy to manufacture.

  In addition, when the woven fabrics 10 and 20 are woven by satin weaving, the weaving method (organization) is not limited to that described in FIG. Here, the organization charts shown in FIGS. 7A and 7B and FIG. 8 are examples of satin weaves other than the satin weave of FIG. 6 described above, and FIG. 7A is based on 8 sheets satin. FIG. 7 (b) shows a combination of 1/3 broken pattern and six satin, and FIG. 8 shows a configuration similar to that of granite vermilion. Also in each satin weave shown in FIGS. 7 (a), 7 (b) and 8, a plurality of pattern lines 11 are formed extending in different directions, and the length of the pattern lines 11 is less than 3 mm. The same effect as described above is obtained. Moreover, you may use the structure of a well-known satin texture other than FIG. 6, FIG.7 (a) (b) mentioned above, and FIG.

  Note that the woven fabrics 10 and 20 may be woven so that the pattern line 11 does not appear. Further, for example, by enhancing the wrinkle pattern (wrinkle weave wrinkle processing), it is possible to enhance the refreshing feeling of the woven fabrics 10 and 20.

  Further, the woven fabrics 10 and 20 may be multi-woven such as double weaving, triple weaving, and quadruple weaving. In this case, since the user touches the surfaces of the woven fabrics 10 and 20, it is preferable to increase the touch by setting the occupation ratio of the spun fibers 3 and 21 to be large. Moreover, since the user does not touch the back surfaces of the woven fabrics 10 and 20, the touch is not as good as the surface. Therefore, it is preferable to improve the antibacterial effect by increasing the occupation ratio of the mixed yarn 1.

  Further, in the above-described embodiment, the woven fabrics 10 and 20 are used for linen items such as hospital sheets, pillowcases, towels, and clothing items such as examination clothes and patient clothes. However, the present invention is not limited thereto. It is not something. That is, the woven fabrics 10 and 20 may be used as various general fabric products such as home use and industrial use.

In addition, you may combine suitably the component of above-mentioned embodiment and other examples of this invention. In addition, the above-described components can be replaced with well-known components without departing from the spirit of the present invention.
In the above-described embodiment, the mixed yarn 1 using a pure copper wire as the copper-containing wire 2 and a bundle of nylon fibers (hereinafter abbreviated as “nylon fiber”) as the spinnable fiber 3 is exemplified. It is not limited to. For example, a pure copper wire may be used as the copper-containing wire 2, and a Bincho charcoal fiber (for example, a diameter of 80 μm) may be used as the spinnable fiber 3.

  Hereinafter, the present invention will be specifically described by way of examples. However, the present invention is not limited to this embodiment.

[Antibacterial effect confirmation test A]
[Example 1]
As Example 1 of the present invention, a woven fabric 10 shown in FIG. 1B was produced using the mixed yarn 1 shown in FIG.
Specifically, a pure copper wire (diameter 50 μm) is used as the copper-containing wire 2, and a yarn in which water-soluble vinylon fiber (100 denier, diameter 91 μm) and nylon monofilament (300 denier, diameter 80 μm) are bundled as the spinnable fiber 3. Using the Z-twist 2a and the S-twist 2b so that the copper-containing wire 2 is spirally wound along the outer peripheral surface of the linear spinnable fiber 3, the water-soluble vinylon fiber is dissolved by hot water washing. A mixed yarn 1 was formed. The number of twists for winding the Z-twisted 2a copper-containing wire 2 and the S-twisted 2b copper-containing wire 2 around the spinnable fiber 3 was 6 times / cm, respectively. In the mixed yarn 1, the pure copper wire 2 was 62 wt%, and the spinnable fiber 3 was 38 wt%.
Then, the mixed yarn 1 formed in this way was used for all the warp yarns and weft yarns to be plain woven, thereby producing a woven fabric 10 in which the occupation ratio of the mixed yarn 1 was 100%. The pitch between adjacent mixed yarns 1 as warp yarns and the pitch between adjacent mixed yarns 1 as weft yarns were each 0.15 mm.

  And using this woven fabric 10, the antibacterial test was done based on JISZ2801, and the antibacterial effect was confirmed. According to JIS Z 2801, “the antibacterial effect of the antibacterial processed product is that the viable cell count of the test bacterium after 24 hours on the product is 1% or less of the viable cell count on the unprocessed product (antibacterial activity value 2.0 However, in the examples of the present invention, the antibacterial effect higher than that of a general antibacterial processed product can be obtained. Therefore, the measurement time was set as follows. That is, the antibacterial effect was confirmed by measuring the number of bacteria (S. aureus) after 0 minutes, 30 minutes, 60 minutes, 90 minutes, and 180 minutes from the start of the test. The confirmation test of Example 1 was performed twice on different days. The results are shown in FIGS. 9 (a) and 9 (b) and FIGS. 10 (a) and 10 (b).

[Example 2]
Further, as Example 2, a woven fabric 20 in which the occupation ratio of the mixed yarn 1 was 50% was produced using the mixed yarn 1 and the spinnable fiber 21 for warp and weft (see FIG. 4). In addition, as the spinnable fiber 21, cotton yarn (diameter 80 μm) was used. Moreover, the pitch of the mixed yarns 1 adjacent as warp yarns and the pitch of the mixed yarns 1 adjacent as weft yarns were 0.5 mm, respectively. Otherwise, the confirmation test was conducted once under the same conditions as in Example 1. The results are shown in FIGS. 9 (a) and 9 (b).

[Example 3]
Further, as Example 3, a woven fabric 20 in which the occupation ratio of the mixed yarn 1 was 66% was produced. The pitch between adjacent mixed yarns 1 as warp yarns and the pitch between adjacent mixed yarns 1 as weft yarns were 0.5 mm, respectively. Otherwise, the confirmation test was performed once under the same conditions as in Example 2. The results are shown in FIGS. 10 (a) and 10 (b).

[Comparative Example 1]
On the other hand, as Comparative Example 1, a woven fabric in which the occupation ratio of the mixed yarn 1 was 30% was produced. The pitch between adjacent mixed yarns 1 as warp yarns and the pitch between adjacent mixed yarns 1 as weft yarns were each 1 mm. Otherwise, the confirmation test was performed once under the same conditions as in Example 2. The results are shown in FIGS. 9 (a) and 9 (b).

[Comparative Example 2]
Further, as Comparative Example 2, a woven fabric in which the occupation ratio of the mixed yarn 1 was 3% was produced. The pitch between adjacent mixed yarns 1 as warp yarns and the pitch between adjacent mixed yarns 1 as weft yarns were 5.5 mm. Otherwise, the confirmation test was performed once under the same conditions as in Example 2. The results are shown in FIGS. 9 (a) and 9 (b).

[Comparative Example 3]
Further, as Comparative Example 3, a woven fabric was produced by plain weaving 30/2 cotton yarn (diameter: 96 μm), which is the spinnable fiber 21, for all warp and weft yarns (that is, the mixed yarn 1). Is 0%). The antibacterial effect was confirmed once under the same test conditions and measurement method as in Example 1. The results are shown in FIGS. 9 (a) and 9 (b).

[Comparative Example 4]
Further, as Comparative Example 4, the antibacterial effect was confirmed twice under the same test conditions and measurement method as in Example 1 without putting the woven fabric in the petri dish. The results are shown in FIGS. 9 (a) and 9 (b) and FIGS. 10 (a) and 10 (b).

[Evaluation]
As shown in FIGS. 9 and 10, for Examples 1 to 3 in which the occupancy ratio of the mixed yarn 1 in the woven fabrics 10 and 20 is 50% or more, it only takes 180 minutes for the bacteria count to reach zero. There was a good antibacterial effect. In particular, in Example 1 where the occupation ratio of the mixed yarn 1 is 100%, it took only 90 minutes for the number of bacteria to reach 0, and it was confirmed that an excellent antibacterial effect was exhibited.

On the other hand, in Comparative Example 1 in which the occupation ratio of the mixed yarn 1 is 30%, although the antibacterial effect of the degree specified in the JIS Z 2801 is recognized, the bacterial count is 600 cfu / 4 cm ² even after 180 minutes. In addition, a rapid antibacterial effect was not obtained. Further, in Comparative Example 2 where the occupation ratio of the mixed yarn 1 is 3% and the pitch between the mixed yarns 1 exceeds 5 mm, and Comparative Examples 3 and 4 which do not include the mixed yarn 1, the antibacterial effect after 180 minutes has elapsed. Little effect was observed.

[Antibacterial effect confirmation test B]
[Example 4]
Next, as Example 4, mixed yarns 1 (pure copper wire 2: diameter 50 μm, spinnable fiber 3: water-soluble vinylon fiber (100 denier, diameter 91 μm), number of twists: 6 times / cm) are obtained by plain weaving. A woven fabric 10 formed by interweaving was prepared. That is, the occupation ratio of the mixed yarn 1 in the woven fabric 10 is 100%. And using the said woven fabric 10, the antibacterial test was done based on JISZ2801, and the antibacterial effect was confirmed. Regarding the measurement time, the antibacterial effect was confirmed by measuring the number of bacteria after 0 minutes, 30 minutes, 60 minutes, and 90 minutes from the start of the test. The results are shown in FIGS. 11 (a) and 11 (b).

[Example 5]
Further, as Example 5, a woven fabric 10 prepared by interweaving mixed yarns 1 (similar to Example 4) with satin weaving (Amundsen) was prepared. Note that a plurality of pattern lines 11 were formed on the outer surface of the woven fabric 10 extending in different directions (see FIG. 6), and the length of each pattern line 11 was set to be less than 3 mm. Otherwise, the confirmation test was performed under the same conditions as in Example 4.

[Comparative Example 5]
Further, as Comparative Example 5, sterilization confirmation was performed under the same test conditions and measurement method as Example 4 without putting an intermediate in the petri dish.

[Evaluation]
As shown in FIG. 11, the antibacterial effect of the woven fabric 10 (Example 5) formed by weaving the mixed yarns 1 with each other is higher than the woven fabric 10 (Example 4) formed by plain weaving the mixed yarns 1 with each other. (See the number of bacteria after 30 minutes in Examples 4 and 5 in FIG. 11). This is because, in Example 5, the plurality of pattern lines 11 of the woven fabric 10 are formed to extend in different directions, so that the shape of the concave grooves along the pattern lines 11 is complicated, There is no regularity in the direction of bacteria escape, the time until sterilization is shortened, and further, the length of these pattern lines 11 is set to be shorter than 3 mm, so that the bacteria are recessed along the pattern lines 11. It becomes difficult to escape along the grooves and the like, and the antibacterial effect is further enhanced.

1 Mixed yarn 2 Pure copper wire (copper-containing wire)
3 Nylon fiber (spinnable fiber)
10, 20 Woven cloth 10a, 20a Fabric surface 11 Pattern line

Claims (5)

A woven fabric woven using a mixed yarn formed by twisting a copper-containing wire containing at least copper and a spun fiber,
The diameter of the copper-containing wire is 100 μm or less,
The number of twists in which the copper-containing wire is wound around the spinnable fiber is 2 times / cm or more,
The mixed yarn occupancy state, and are more than 50%,
The pitch between adjacent mixed yarns is 5 mm or less,
The copper-containing wire is wound spirally on the spinnable fiber extending in a straight line,
The woven fabric , wherein the copper-containing wire is Z-twisted and S-twisted around the spinnable fiber . The woven fabric according to claim 1 ,
A plurality of pattern lines extending from the cloth surface along the surface direction extend in different directions,
The woven fabric characterized in that the length of the pattern line is less than 3 mm. The woven fabric according to claim 2 ,
Woven fabric characterized by being woven by pear fabric.   The woven fabric according to any one of claims 1 to 3,
  A woven fabric, wherein the copper-containing wire is wound spirally so as to circulate with a gap between the copper-containing wire and the outer peripheral surface of the spinnable fiber.   The woven fabric according to any one of claims 1 to 4,
  The mixed yarn is formed by attaching short fibers containing copper to any one or more of the copper-containing wire and the spinnable fiber, and then twisting them together. Woven cloth to do.

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