Antibacterial knitted fabrics such as thong covers, doorknob covers, and mask inner sheets

Abstract

To provide an antibacterial knitted fabric 11 high in antibacterial property and washing resistance.SOLUTION: The antibacterial knitted fabric 11 of the present invention includes: a first face 11A obtained by knitting loops with a metallic yarn 12 having antibacterial property; and a second face 11B obtained by knitting loops with a non-metallic yarn 13. A copper wire yarn is used as the metallic yarn 12, and a cotton acrylic yarn is used as the non-metallic yarn 13. Loops are knitted with the non-metallic yarn 13 used for the second face 11B on both knitted mouth parts 16, 17 (both inner face and outer face) of the antibacterial knitted fabric 11.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an antibacterial The earth Antibacterial knitted fabric used As a tong cover, doorknob cover or inner sheet for masks Regarding. [Background technology]

[0002] Conventional antibacterial treatments for knitted fabrics include a post-processing method in which an organic antibacterial agent such as a quaternary ammonium salt is applied by spraying or padding (see Patent Document 1), and a method in which an inorganic antibacterial agent such as silver, copper, or zinc is kneaded into synthetic fibers at the spinning stage (see Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-100269 A [Patent Document 2] JP 2008-111221 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the former case, the antibacterial agent gradually comes off with repeated washing, making it impossible to ensure sufficient antibacterial performance over a long period of time, that is, there is a problem that the antibacterial agent is inferior in terms of washing durability.

[0005] On the other hand, the latter method is relatively superior in terms of washing durability, but the antibacterial agent is easily embedded in the synthetic resin, making it difficult to achieve a high level of antibacterial activity, and in particular, to achieve high antibacterial activity up to the bacteriostatic level, a large amount of antibacterial agent must be added. This causes problems in terms of cost, thread strength, dyeability, etc. In addition, the latter method also causes problems in spinning, such as frequent thread breakage, because the antibacterial agent precipitates as crystals on the spinneret surface during the spinning stage. [Means for solving the problem]

[0006] The present invention is an antibacterial composition that has been improved by considering the above-mentioned current situation. The earth Antibacterial knitted fabric used As a tong cover, doorknob cover or inner sheet for masks The technical objective is to provide the following:

[0007] The present invention relates to an antibacterial The earth Antibacterial properties used Things The invention of claim 1 has a first surface on which loops are formed by antibacterial metallic yarns and a second surface on which loops are formed by non-metallic yarns. ,before Non-metallic thread There is Stretch yarn is combined It has been Antibacterial knitted fabric The antibacterial knitted fabric is a tongue cover or door knob cover using the above-mentioned antibacterial knitted fabric, and the antibacterial knitted fabric is formed into a tubular body by tubular knitting, the first surface is located on the outer surface side of the tubular body, while the second surface is located on the inner surface side of the tubular body, and only one end portion of the tubular body in the wale direction is opened by knitting loops with a thread other than the metal thread, while the other end portion of the tubular body in the wale direction is closed by welding. It is something.

[0008] The invention of claim 2 is an inner sheet for a mask as an antibacterial knit using an antibacterial knitted fabric having a first surface in which loops are knitted with antibacterial metallic yarn and a second surface in which loops are knitted with non-metallic yarn, the non-metallic yarn being combined with a stretch yarn, the antibacterial knitted fabric being formed into a tubular body by tubular knitting, the first surface being located on the outer surface side of the tubular body while the second surface being located on the inner surface side of the tubular body, only one end portion of the wale direction of the tubular body is knitted with loops using yarn other than the metallic yarn and closed by knitting, while the other end portion of the wale direction of the tubular body is closed by welding.

[0009] Effect of the Invention

[0010] According to the present invention, since the first side has loops knitted from antibacterial metallic yarn and the second side has loops knitted from non-metallic yarn, if the side that comes into contact with a person's hand is treated as the first side, high antibacterial performance can be exhibited due to the presence of the antibacterial metallic yarn itself, and it becomes possible to develop an article that takes advantage of the stretchability that is a characteristic of the knitted fabric. In addition, since the metal itself is used as the yarn, the antibacterial performance is unlikely to decrease even with repeated washing, and sufficient antibacterial performance can be ensured for a long period of time.

[0011] Now, metal yarn, which is a thread made of metal itself, often has a smaller diameter (thinner diameter) than non-metallic yarn and is prone to problems of damage such as fraying and thread breakage near the end in the wale direction (the so-called mouth knit portion). In contrast, in the present invention, loops are knitted with a thread other than a metal yarn at one or both ends in the wale direction on the first and second surfaces, so that the one or both ends in the wale direction can be reinforced with a thread other than a metal yarn, improving the durability and appearance of the one or both ends in the wale direction.

[0012] In summary, by adopting the present invention, it is possible to obtain an antibacterial knit having high antibacterial properties and high washability. The earth Antibacterial knitted fabric used As a tong cover, doorknob cover or inner sheet for masks can be provided. [Brief description of the drawings]

[0013] [Figure 1] 1A and 1B are schematic explanatory views of a tongue cover according to a first embodiment, in which (a) is an outer view and (b) is an inner view. [Diagram 2] FIG. 2 is a schematic explanatory diagram of a tongue cover attached to the tongue. [Diagram 3] FIG. 4 is a schematic explanatory diagram showing a tongue cover in use. [Figure 4] 11A and 11B are schematic explanatory views of a door knob cover according to a second embodiment, in which (a) is an outer view and (b) is an inner view. [Diagram 5] FIG. 2 is a schematic diagram of a door knob cover attached to a door knob. [Figure 6] FIG. 2 is a schematic explanatory diagram showing the door knob cover in use. [Figure 7] 11A to 11C are schematic explanatory diagrams of an inner sheet for a mask in a third embodiment, where (a) is a front view, (b) is a back view, and (c) is a reference view with a part turned upside down. [Figure 8] FIG. 2 is a schematic explanatory diagram showing the inner sheet for a mask in use. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Next, an embodiment of the present invention will be described with reference to the drawings.

[0015] As shown in Figs. 1 to 3, the tong cover 10, which is an antibacterial knitted fabric of the first embodiment, is used to cover the folded part of food tongs 1 that are used to grab food at a buffet or the like, which is touched by a person's hand, and is made of an antibacterial knitted fabric 11 having a first surface 11A in which loops are formed by antibacterial metal threads 12 and a second surface 11B in which loops are formed by non-metallic threads 13. Copper wire threads are preferable as the metal threads 12 of the first embodiment. A combination of copper wire threads and stretch threads may also be used. A combination of cotton acrylic threads and stretch threads is preferable as the non-metallic threads 13. The metal threads 12 have a smaller diameter (thinner diameter) than the non-metallic threads 13. The diameter of the metal threads 12 is preferably 0.1 mm or less, and more preferably 0.06 mm or less.

[0016] The tongue cover 10 of the first embodiment is configured into a tubular body 14 by tubular knitting with plating knitting. One end 16 of the tubular body 14 in the wale direction (the direction in which the loops formed by each needle are connected) is open. The other end 17 of the tubular body 14 is closed by knitting, bonding, welding, etc. The first surface 11A is located on the outer surface side of the tubular body 14. The second surface 11B is located on the inner surface side of the tubular body 14.

[0017] At one end or both ends in the wale direction of the first surface 11A and the second surface 11B, loops are knitted with yarn other than the metallic yarn 12. In the case of the first embodiment, loops are knitted in both opening portions 16, 17 of the tubular body 14 (on both the inner and outer surfaces) with the non-metallic yarn 13 used on the second surface 11B.

[0018] The folded-back portion of the food tongs 1 is inserted into one-side knitted portion 16 of the tubular body 14 constituting the tong cover 10, and the folded-back portion is covered with the tong cover 10. Then, the knitted body portion 15 of the first surface 11A in which the loops are knitted with the metal thread 12 is exposed to the outside, so that the knitted body portion 15 can be touched by a person's hand.

[0019] A sewn-on snap button 18 is attached to the inner surface (second surface 11B) of the cylindrical body 14. The tongs cover 10 is placed over the folded portion of the food tongs 1 and the snap button 18 is fastened inside the folded portion, thereby preventing the tongs cover 10 from coming off the food tongs 1.

[0020] With the above configuration, the surface that comes into contact with a person's hand or the like is treated as the first surface 11A, and therefore the presence of antibacterial metal threads themselves can provide high antibacterial performance, and the tong cover 10 can take advantage of the stretchability that is a characteristic of the knitted fabric. In addition, because metal threads themselves are used, antibacterial performance is unlikely to decrease even after repeated washing, and sufficient antibacterial performance can be ensured for a long period of time.

[0021] Here, the metal thread 12 such as copper wire has antibacterial, germicidal and antiviral properties that destroy the protein structure and DNA of bacteria and viruses that come into contact with the wire. It can also decompose the molecular bonds of organic matter and has antifungal (tinea fungus) properties. Copper, silver and other metals dissolve in water and become metal ions, thereby exerting antibacterial, germicidal and antiviral properties.

[0022] In the first embodiment, loops are knitted at both ends in the wale direction on the first surface 11A and the second surface 11B (mouth knit portions 16, 17) using yarn other than metallic yarn 12 (non-metallic yarn 13 (a combination of cotton acrylic yarn and stretch yarn)). This makes it possible to reinforce both ends 16, 17 in the wale direction with yarn other than metallic yarn 12, thereby improving the durability and appearance of both ends 16, 17 in the wale direction.

[0023] The antibacterial knitted fabric of the second embodiment shown in Figs. 4 to 6 is a doorknob cover 20. The doorknob cover 20 of the second embodiment is used by covering the doorknob 2 to ensure hygiene of the doorknob 2 which is touched by the hands of an unspecified number of people, and is made of an antibacterial knitted fabric 21 having a first surface 21A in which loops are knitted with antibacterial metal yarn 22 and a second surface 21B in which loops are knitted with non-metallic yarn 23. Copper wire yarn is preferable as the metal yarn 22 of the second embodiment. A combination of copper wire yarn and stretch yarn may also be used. A combination of cotton acrylic yarn and stretch yarn is preferable as the non-metallic yarn 23.

[0024] The door knob cover 20 of the second embodiment is configured into a tubular body 24 by tubular knitting with plating knitting. One end 26 of the tubular body 24 in the wale direction is open. The other end 27 of the tubular body 24 is closed by bonding, welding, knitting, or the like. The first surface 21A is located on the outer surface side of the tubular body 24. The second surface 21B is located on the inner surface side of the tubular body 24.

[0025] At one end or both ends in the wale direction of the first surface 21A and the second surface 21B, loops are knitted with a yarn other than the metallic yarn 22. In the case of the second embodiment, loops are knitted in one end knit portion 26 of the tubular body 24 (on both the inner and outer surfaces) with a non-metallic yarn 28 different from the non-metallic yarn 23 used on the second surface 21B. In the second embodiment, it is preferable to adopt a combination of a cotton acrylic yarn and a stretch yarn as the non-metallic yarn 28 other than the non-metallic yarn 23 (cotton acrylic yarn).

[0026] The doorknob 2 is inserted into one-sided knitted part 26 of the tubular body 24 constituting the doorknob cover 20, the handle part 2A of the doorknob 2 is covered with the body knitted part 25 of the doorknob cover 20, and the pivot shaft part 2B of the doorknob 2 is covered with the one-sided knitted part 26 in which loops are knitted with non-metallic yarn 28. In this way, the body knitted part 25 of the first surface 21A in which loops are knitted with metallic yarn 22 is exposed to the outside, so that the body knitted part 25 can be touched by a person's hand.

[0027] With the above configuration, the surface that comes into contact with a person's hand or the like is treated as the first surface 21A, and therefore the presence of antibacterial metal threads themselves can provide high antibacterial performance, while also making use of the stretchability that is a characteristic of the knitted fabric, making it possible to provide a doorknob cover 20. In addition, because metal threads themselves are used, antibacterial performance is unlikely to decrease even with repeated washing, and sufficient antibacterial performance can be ensured for a long period of time.

[0028] Furthermore, in the second embodiment, loops are knitted at one end in the wale direction (one-side knitted portion 26) on the first surface 21A and the second surface 21B using a yarn other than the metallic yarn 22 (non-metallic yarn 28 (a combination of cotton acrylic yarn and stretch yarn)), so that the one end in the wale direction 26 can be reinforced with a yarn other than the metallic yarn 22, thereby improving the durability and appearance of the one end in the wale direction 26.

[0029] If loops are knitted in the one-sided knitted portion 26 of the cylindrical body 24 (on both the inner and outer surfaces) with a non-metallic yarn 28 different from the non-metallic yarn 23 used in the second surface 21B, it becomes possible to provide the non-metallic yarn 28 in a plurality of different colors. In that case, for example, if doorknob covers 20 with one-sided knitted portion 26 of different colors are replaced with doorknob 2 at predetermined intervals, the user can tell at a glance that the doorknob cover 20 has been replaced with a new one by the change in color of the one-sided knitted portion 26, providing the user with a visible sense of security. It also becomes easier to encourage cleaning staff to replace the doorknob as needed.

[0030] The antibacterial knitted fabric of the third embodiment shown in Figures 7 and 8 is an inner sheet 30 for a mask. The inner sheet 30 of the third embodiment is attached to the mask body 3A of the mask 3, which is a sanitary tool, to capture and separate foreign matter such as viruses, bacteria, dust, and pollen in the air that is inhaled through the mask body 3A during inhalation.

[0031] The inner sheet 30 of the third embodiment is made of an antibacterial knitted fabric 31 having a first surface 31A in which loops are formed with antibacterial metal yarn 32 and a second surface 31B in which loops are formed with non-metallic yarn 33. The metal yarn 32 of the third embodiment is preferably a combination of copper wire yarn and stretch yarn. The non-metallic yarn 33 is preferably a combination of cotton acrylic yarn and stretch yarn.

[0032] The inner sheet 30 of the third embodiment is formed into a tubular shape by plain knitting, and both ends of the knitted portions 36, 37 in the wale direction are closed by knitting, bonding, welding, or the like to form a sheet-like body 34. A first surface 31A is located on the front side of the sheet-like body 34. A second surface 31B is located on the back side of the sheet-like body 34.

[0033] At one end or both ends in the wale direction of the first surface 31A and the second surface 31B, loops are knitted with yarn other than the metallic yarn 32. In the case of the third embodiment, loops are knitted in both end knitted portions 36, 37 of the sheet-like body 34 (on both the front and back surfaces) with the non-metallic yarn 33 used on the second surface 31B.

[0034] The inner sheet 30 is inserted into a pocket (not shown) formed in the mask body 3A so that the first surface 31A faces outward and the second surface 31B faces the face. Foreign matter in the air that is inhaled through the mask body 3A during inhalation is captured and separated by the knitted portion 35 of the first surface 31A in which loops are knitted with metal yarn 32. In addition, foreign matter (viruses, etc.) in exhaled air can also be captured and separated by the metal yarn 32 of the first surface 31A.

[0035] According to the above-mentioned configuration, it is possible to provide an inner sheet 30 that can exhibit high antibacterial performance due to the presence of antibacterial metal yarns and that utilizes the stretchability that is a characteristic of the knitted fabric. In addition, since metal yarns are used, the antibacterial performance is unlikely to decrease even with repeated washing, and sufficient antibacterial performance can be secured for a long period of time.

[0036] In the third embodiment, loops are knitted at both ends in the wale direction on the first surface 31A and the second surface 31B (mouth knit portions 36, 37) using a yarn other than the metallic yarn 32 (non-metallic yarn 33 (a combination of cotton acrylic yarn and stretch yarn)). This makes it possible to reinforce both ends in the wale direction 36, 37 with a yarn other than the metallic yarn 32, thereby improving the durability and appearance of both ends in the wale direction 36, 37.

[0037] When attaching the inner sheet 30 to the mask body 3A, if the second surface 31B made of non-metallic yarn 33 faces the face, the feeling of the inner sheet 30 touching the face through the pocket can be softened. In particular, since both ends in the wale direction of the inner sheet 30 (mouth knitting portions 36, 37) are reinforced with yarn other than the metallic yarn 32 (non-metallic yarn 33 (combination of cotton acrylic yarn and stretch yarn)), if the second surface 31B made of non-metallic yarn 33 faces the face, there is almost no risk of the metallic yarn 32 on the first surface 31A touching the face, and therefore no discomfort is caused to the face when wearing a mask with the inner sheet.

[0038] In each of the above configurations, the knitting method of the antibacterial knitted fabrics 11, 21, 31 is not limited to the above-mentioned plain knit and yarn-added knit, but various knitting methods may be adopted, such as rib knit, purl knit, tuck knit, float knit, lace knit, double rib knit, single rib knit, perlerine knit, eyelet knit, double-sided knit, multi-strike double-sided knit, swing knit, needle-punched knit, stand-up knit, fleece knit, tangled yarn-added knit, laven knit, twist knit, argyle knit, single denbigh knit, single Van Dyke knit, single cord knit, Berlin knit, double stitch knit, shell knit, double denbigh knit, atlas knit, cord knit, half tricot knit, satin knit, sharkskin knit, lace knit, tuck knit, pile knit, elastic knit, queens cord knit, etc.

[0039] The material of the metal threads 12, 22, 32 includes not only copper but also metals such as silver and zinc. It is also possible to adopt a copper alloy in which copper is combined with zinc, silver, nickel, etc. alone or in combination. For example, from the viewpoint of antibacterial properties, the metal threads 12, 22, 32 mainly composed of copper (accounting for 50% by mass or more) are preferable. As described above, the metal threads 12, 22, 32 have a smaller diameter (thinner diameter) than the non-metallic threads 13, 23, 28, 33, and the diameter is preferably 0.1 mm or less, and more preferably 0.06 mm or less.

[0040] The nonmetallic yarns 13, 23, 28, 33 are not particularly limited, and yarns obtained from conventionally known fibers such as natural fibers, regenerated fibers, semi-synthetic fibers, and synthetic fibers can be used. These fibers may be used alone or in combination of two or more types. The nonmetallic yarns 13, 23, 28, 33 may be mixed yarns. Examples of mixed yarns include covered yarns in which the nonmetallic yarns 13, 23, 28, 33 are wrapped with the metal yarns 12, 22, 32, or double-twisted yarns formed by twisting the nonmetallic yarns 13, 23, 28, 33 and the metal yarns 12, 22, 32 together. The mixed yarns may include one type of metal yarn 12, 22, 32 or two or more types of metal yarns.

[0041] The shape of the non-metallic yarns 13, 23, 28, 33 is not particularly limited, and conventionally known shapes such as spun yarns (short fiber yarns), multifilament yarns, and monofilament yarns (long fiber yarns) can be used. The cross-sectional shape of the non-metallic yarns 13, 23, 28, 33 is also not particularly limited. They may be circular or may be so-called irregular cross-sectional yarns other than circular. In addition, when forming a knitted fabric from the antibacterial knitted fabrics 11, 21, 31, as described above, it is preferable to combine the metallic yarns 12, 22, 32 and the non-metallic yarns 13, 23, 28, 33 with stretch yarns.

[0042] Furthermore, antibacterial knitted fabrics using the antibacterial knitted fabrics 11, 21, 31 are not limited to the above-mentioned tongue cover 10, door knob cover 20, and inner sheet 30, but may also be, for example, handle covers for covering various handles, card holders such as commuter passes and company ID holders, and storage containers such as mask holders. Antibacterial knitted fabrics of various shapes can be produced.

[0043] The configuration of each part in the present invention is not limited to the illustrated embodiment, and various modifications are possible without departing from the spirit of the present invention. [Explanation of symbols]

[0044] 10 Tong cover 11,21,31 Antibacterial knitted fabric 11A,21A,31A Front page 11B,21B,31B Second side 12, 22, 32 Metallic thread (copper wire thread) 13, 23, 33 Non-metallic yarn (cotton acrylic yarn) 14,24 Cylindrical body 15,25,35 Body part 16, 26, 36 One-sided knitting section 17, 27, 37 Other side knitting section 20 Doorknob Cover 28 Other non-metallic yarns (acrylic yarns) 30 Inner sheet 34 Sheet-like body

Claims

1. A tongue cover or door knob cover as an antibacterial knitted fabric, comprising a first surface on which loops are formed by antibacterial metallic yarn and a second surface on which loops are formed by non-metallic yarn, the non-metallic yarn being combined with a stretch yarn, The antibacterial knitted fabric is formed into a tubular body by tubular knitting, the first surface is located on the outer surface side of the tubular body, and the second surface is located on the inner surface side of the tubular body, Only one end of the tubular body in the wale direction, that is, one of the knitted portions, is opened by knitting loops using a yarn other than the metal yarn, while the other end of the tubular body in the wale direction, that is, the other knitted portion, is closed by welding. A tong cover or door knob cover as an antibacterial knitted fabric.

2. An inner sheet for a mask as an antibacterial knitted fabric, the inner sheet having a first surface in which loops are formed from antibacterial metallic yarn and a second surface in which loops are formed from non-metallic yarn, the non-metallic yarn being combined with a stretch yarn, The antibacterial knitted fabric is formed into a tubular body by tubular knitting, the first surface is located on the outer surface side of the tubular body, and the second surface is located on the inner surface side of the tubular body, Only one end of the tubular body in the wale direction is closed by knitting loops using a yarn other than the metal yarn, while the other end of the tubular body in the wale direction is closed by welding. An antibacterial knitted inner sheet for masks.

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