Wrist taping tape

Abstract

To provide a taping tape for a wrist which can be easily stuck by oneself and can suppress both movements of ulnar flexion and dorsiflexion of the wrist.SOLUTION: The tape base material 10 of the wrist taping tape A has a thumb winding sticking part 11 which can be wound around and stuck to the thumb, a hand back side sticking part 12 which can be stuck along the back of the hand from the root part of the thumb to the wrist part, and a palm side sticking part 13 which can be stuck along the palm of the hand from the root part of the thumb to the wrist part. The shape of the thumb circumference attachment portion 11 is a rectangular shape having a long side in the stretch direction C of the fabric. The shape of each of the back-side sticking portion 12 and the palm-side sticking portion 13 is a trapezoidal shape whose height is the sticking length in the non-stretch direction D of the fabric. The entire shape of the thumb circumference sticking portion 11, the hand back side sticking portion 12, and the palm side sticking portion 13 is formed in a bifurcated shape in which the hand back side sticking portion 12 and the palm side sticking portion 13 are branched from the thumb circumference sticking portion 11.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to wrist taping tapes. [Background technology]

[0002] Currently, taping tapes and wrist supports are used as products that function to restrict wrist movement. Patent Document 1 discloses a wrist support that can be applied to the palm or dorsum of the wrist on either the left or right hand, reducing stress such as impact. Patent Document 2 discloses a wrist bandage with taping functions that can reduce stress on the wrist and prevent tenosynovitis. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-2655561 [Patent Document 2] International Publication No. 2015 / 133480 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the wrist is often bent in both ulnar flexion and dorsiflexion in everyday activities such as grasping a doorknob, working on a computer, and gripping a club in golf, tennis, and other sports. Therefore, a certain number of people experience wrist pain when performing wrist flexion movements, and suppressing this wrist flexion movement can alleviate wrist pain. Note that "ulnar flexion" refers to the movement of bending the wrist toward the little finger. "Dorsiflexion" refers to the movement of bending the wrist toward the back of the hand.

[0005] In contrast, commonly known taping tape is a roll type with a fixed tape width, and is used to prevent injuries and recurrence of injuries to joints of fingers, wrists, and ankles, as well as for first aid to muscles, and is widely used by athletes, sports trainers, and other people involved in sports. However, there are various application methods for taping tape depending on the application area and purpose, and the complexity of this method makes it difficult to use for the first time.

[0006] The wrist supports disclosed in the above-mentioned Patent Documents 1 and 2 have a lower adhesion to the skin than taping tape, and are less effective at inhibiting wrist movement than taping tape, which stops skin movement by adhering closely to the skin. For this reason, wrist supports have the problem of being less effective at inhibiting wrist bending movement, for example, when a person with wrist pain bends their wrist, the pain is not sufficiently inhibited.

[0007] The present disclosure has been made in response to the above-mentioned problems, and aims to provide a wrist taping tape that can be easily applied by the user and that can suppress both ulnar flexion and dorsiflexion movements of the wrist. [Means for solving the problem]

[0008] One aspect of the present disclosure that achieves the above-mentioned object is a wrist taping tape. The wrist taping tape includes a tape substrate made of a unidirectionally stretchable fabric, an adhesive layer formed on the application surface of the tape substrate, and a release liner applied over the adhesive layer. The tape substrate has a thumb-wrap adhesive portion that can be wrapped around the thumb and applied, a dorsal-hand adhesive portion that can be applied along the back of the hand from the base of the thumb to the wrist, and a palm-side adhesive portion that can be applied along the palm from the base of the thumb to the wrist. The thumb-wrap adhesive portion is rectangular in shape, with the long side extending in the stretch direction of the fabric. The dorsal-hand adhesive portion and the palm-side adhesive portion are each trapezoidal in shape, with the height equal to the application length in the non-stretch direction of the fabric. The overall shapes of the thumb surrounding adhesive portion, the dorsum of the hand adhesive portion, and the palm side adhesive portion are formed into a bifurcated shape in which the dorsum of the hand adhesive portion and the palm side adhesive portion branch off from the thumb surrounding adhesive portion.

[0009] In the wrist taping tape of the above aspect, when the adhesive tape in which the tape base material and the adhesive layer are laminated is subjected to the quick-drying test described below, the residual moisture content after a predetermined time from the start of the test may be equal to or less than a residual moisture content threshold value for evaluating quick-drying performance. (Quick-drying test) The test is carried out using a test piece of adhesive tape according to the following procedure. 1) The dried initial test piece is immersed in a constant temperature water bath for a set time. 2) Measure the mass of the test piece after lightly wiping off the moisture with a paper wiper. 3) Place the test piece in a constant temperature and humidity chamber and measure the mass of the test piece every unit time. 4) The mass of this test piece per unit time is measured until a specified time has elapsed. The residual moisture content after a specified time from the start of the quick-drying test is Residual moisture content [%] = {(mass of test piece after a specified time) / (initial mass of test piece)} x 100 It is calculated using the formula:

[0010] In the wrist taping tape of the above aspect, the dorsal-side adhesive portion and the palm-side adhesive portion may have an application length corresponding to the height of the trapezoidal shape referred to as a first length, such that the flexion angle suppression rate during ulnar flexion (bending the wrist toward the little finger) is equal to or greater than a flexion angle suppression rate threshold for evaluating flexion suppression performance. The dorsal-side adhesive portion and the palm-side adhesive portion may have an application length corresponding to the upper base of the trapezoidal shape referred to as a second length, such that the flexion angle suppression rate during ulnar flexion (bending the wrist toward the little finger) is equal to or greater than a flexion angle suppression rate threshold for evaluating flexion suppression performance. The palm-side adhesive portion may have an application length corresponding to the lower base of the trapezoidal shape referred to as a third length, such that the flexion angle suppression rate during dorsal flexion (bending the wrist toward the back of the wrist) is equal to or greater than a flexion angle suppression rate threshold for evaluating flexion suppression performance.

[0011] In the wrist taping tape of the above aspect, the overall shapes of the thumb adhesive portion, the dorsum adhesive portion, and the palm adhesive portion may be set to be bilaterally symmetrical with a line in the non-stretchable direction passing through a single dividing cut line that separates the dorsum adhesive portion from the palm adhesive portion. The tape substrate may have a mark in the central region of the upper long side of the thumb adhesive portion to indicate the start position for application to the underside of the first joint of the thumb. The mark may be a first arcuate recess formed by recessing the central region of the upper long side of the thumb adhesive portion. The tape substrate may have a second arcuate recess formed by recessing the inclined side of the dorsum adhesive portion and a third arcuate recess formed by recessing the inclined side of the palm adhesive portion.

[0012] Another aspect of the present disclosure is a wrist taping tape. The wrist taping tape includes a tape substrate made of a unidirectionally stretchable fabric and an adhesive layer formed on an application surface of the tape substrate. For an adhesive tape in which the tape substrate and the adhesive layer are laminated together, a combination of the tape substrate and the adhesive layer is selected such that, when subjected to the quick-drying test described below, the residual moisture content after a predetermined time from the start of the test is equal to or less than a residual moisture content threshold value for evaluating quick-drying performance. (Quick-drying test) The test is carried out using a test piece of adhesive tape according to the following procedure. 1) The dried initial test piece is immersed in a constant temperature water bath for a set time. 2) Measure the mass of the test piece after lightly wiping off the moisture with a paper wiper. 3) Place the test piece in a constant temperature and humidity chamber and measure the mass of the test piece every unit time. 4) The mass of this test piece per unit time is measured until a specified time has elapsed. The residual moisture content after a specified time from the start of the quick-drying test is Residual moisture content [%] = {(mass of test piece after a specified time) / (initial mass of test piece)} x 100 It is calculated using the formula: [Effects of the Invention]

[0013] The wrist taping tape according to the present disclosure can be easily applied by the user and can suppress both ulnar flexion and dorsiflexion of the wrist. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 2 is a view showing the surface of the tape substrate side of the wrist taping tape according to the embodiment. [Figure 2] 2 is a cross-sectional view of the wrist taping tape of the embodiment taken along line BB in FIG. 1. FIG. [Figure 3] FIG. 2 is a rear view of the release material side showing the wrist taping tape of the embodiment. [Figure 4] FIG. 2 is an enlarged image showing a cross section of a pressure-sensitive adhesive layer. [Figure 5] FIG. 10 is a test result diagram showing the test results of quick-drying properties when different tape substrates are used. [Figure 6] FIG. 10 is an explanatory diagram showing the portion of the wrist taping tape that inhibits ulnar flexion and dorsiflexion movement. [Figure 7] FIG. 10 is an explanatory diagram showing measurement locations for the length dimension of a wrist taping tape. [Figure 8] FIG. 10 is a data characteristic diagram showing the relationship between hand dimensions and the proportion of people for men and women. [Figure 9]FIG. 1 is an explanatory diagram showing a method for measuring the flexion angle suppression rate during ulnar flexion. [Figure 10] FIG. 1 is an explanatory diagram showing a method for measuring a flexion angle suppression rate during dorsiflexion. [Figure 11] FIG. 10 is a test result diagram showing whether or not the ulnar flexion fixation force is established depending on the first length. [Figure 12] FIG. 10 is a test result diagram showing the value of the flexion angle suppression rate during ulnar flexion depending on the second length. [Figure 13] FIG. 10 is a test result diagram showing the value of the flexion angle suppression rate during dorsiflexion depending on the third length. [Figure 14] 10A to 10C are explanatory diagrams showing the procedure for applying the wrist taping tape to the left hand. DETAILED DESCRIPTION OF THE INVENTION

[0015] Embodiments and examples of the wrist taping tape of the present disclosure are described below with reference to the drawings. In this specification, the notation "a to b" in the description of a numerical range means a to b, unless otherwise specified.

[0016] (Embodiment) [Shape and composition of wrist taping tape (Fig. 1 to 3)] As shown in Figures 1 and 2, wrist taping tape A comprises a tape substrate 10 made of a fabric that stretches in one direction, an adhesive layer 20 formed on the application surface of the tape substrate 10, and a release material 30 that covers and is applied to the adhesive layer 20.

[0017] Here, in order to increase the fixation force on the wrist, both the vertical direction (vertical direction (up-down direction) in FIG. 1) and the horizontal direction (horizontal direction (left-right direction) in FIG. 1) of the fabric may be non-stretchable. However, if the fabric is non-stretchable in both the vertical and horizontal directions, the movement of the skin may be restricted when the skin tries to move in a direction unrelated to the direction in which the wrist is fixed when attached to the skin, which may result in skin irritation. Therefore, the horizontal direction in FIG. 1 may be set as the stretch direction C to reduce skin irritation, and the vertical direction in FIG. 1 may be set as the non-stretch direction D to increase the fixation force on the wrist. Note that the non-stretch direction D includes zero stretch, and using the index of "limit stretch" described below, it means, for example, a direction with a stretch rate of 10% or less, not a direction with no stretch at all.

[0018] The material of the fabric is not particularly limited, and examples thereof include cellulosic fibers such as cotton and rayon; synthetic fibers such as polyester, polyamide, acrylic, polyurethane, polyethylene, and polypropylene; and these materials can be used alone or in combination. Furthermore, elastic fibers, non-elastic fibers, or combinations thereof can be used.

[0019] From the viewpoints of flexibility, stretchability, hand tearability, self-back adhesiveness, and breathability, examples of the fabric include woven fabrics in which some or all of the warp threads are composite yarns of cellulosic fibers and elastic fibers, and woven fabrics in which the warp threads are alternately composed of one S-twisted strong cellulosic fiber yarn and one Z-twisted strong cellulosic fiber yarn. Examples of cellulosic fibers include cotton, viscose rayon, and polynosic fibers. Composite yarns of cellulosic fibers and elastic fibers include twisted yarns, covered yarns, and core-spun yarns of cellulosic fibers and elastic fibers (e.g., polyether-based polyurethane fibers, polyester-based polyurethane fibers, and synthetic rubber fibers). Among these, core-spun yarns of cellulosic fibers and polyether-based polyurethane fibers (threads in which cotton yarn is wrapped around polyurethane fibers, sometimes referred to as "CSY") are preferred, but are not limited thereto. The blend ratio of cellulosic fibers to elastic fibers is preferably 85 to 98% by mass, more preferably 90 to 96% by mass.

[0020] The weft of the woven fabric may be made of any fiber, such as so-called synthetic fibers such as polyester fibers, polyamide fibers, and acrylic fibers; or cellulosic fibers such as cotton and rayon. For example, in the case of a woven fabric using core spun yarns, the warp may be made of core spun yarns with counts of 8 to 60 arranged at a density of 16 to 48 threads per inch, and the weft may be made of cotton yarns with counts of 6 to 30 arranged at a density of 40 to 80 threads per inch.

[0021] When stretched by hand in the longitudinal direction, the fabric preferably stops stretching between 10 and 200%, and more preferably between 30 and 180%. If the fabric is a knitted fabric, this characteristic can be achieved by using a warp-knitted fabric. "Stretch limit" refers to a state in which, when the patch is pulled strongly by hand in the longitudinal direction, the patch reaches its stretch limit and cannot be stretched any further. The longitudinal length of the patch before stretching is taken as 100%, and this refers to the length to which the patch has stretched when it reaches its stretch limit. For example, a "stretch limit" of 100% indicates that the patch has been stretched to twice its length before stretching and has reached its limit.

[0022] The thickness of the tape substrate 10 is not particularly limited, but from the viewpoints of flexibility, stretchability, ease of hand tearing, etc., it is preferably in the range of 0.1 mm to 10 mm, more preferably 0.1 mm to 5 mm. In particular, for adhesive materials for taping tapes, those in the range of 0.36 mm to 0.40 mm are most preferably used. The thickness of the fabric can be adjusted by the thread thickness and thread count.

[0023] As shown in Figure 1, the tape substrate 10 integrally comprises a thumb-wrapping adhesive portion 11, a dorsal adhesive portion 12, and a palm-side adhesive portion 13. The thumb-wrapping adhesive portion 11 can be wrapped around and attached to the area between the base of the thumb and the first joint. The dorsal adhesive portion 12 can be attached by pulling it along the back of the hand from the base of the thumb to the wrist. The palm-side adhesive portion 13 can be attached by pulling it along the palm from the base of the thumb to the wrist.

[0024] As shown in Figure 1, the shape of the thumb wraparound adhesive part 11 is a rectangle whose long side is the stretch direction C of the fabric and whose short side is the non-stretch direction D of the fabric, and which may be long enough to completely wrap around the thumb and cover at least 80% of the circumference of the thumb, including the back and both sides. The thumb wraparound adhesive part 11 is bounded by an upper long side 11a, a lower left long side 11b, a lower right long side 11c, a left short side 11d, and a right short side 11e. The four corners of the rectangle of the thumb wraparound adhesive part 11 are rounded.

[0025] As shown in Fig. 1, the back-of-hand adhesive part 12 and the palm-side adhesive part 13 are each trapezoidal in shape, with the side corresponding to the base of the thumb in the stretch direction C of the fabric as the upper base, the side corresponding to the wrist in the stretch direction C of the fabric as the lower base, and the adhesive length in the non-stretch direction D of the fabric as the height. The back-of-hand adhesive part 12 is surrounded by a lower base 12a, a vertical side 12b, and an inclined side 12c. The palm-side adhesive part 13 is also surrounded by a lower base 13a, a vertical side 13b, and an inclined side 13c.

[0026] The corner of the back-of-hand adhesive portion 12 where the lower base portion 12a and the vertical side portion 12b intersect is an inner rounded portion 12d, and the corner of the lower base portion 12a and the inclined side portion 12c intersect is an outer rounded portion 12e. The palm-side adhesive portion 13 where the lower base portion 13a and the vertical side portion 13b intersect is an inner rounded portion 13d, and the corner of the lower base portion 13a and the inclined side portion 13c intersect is an outer rounded portion 13e. The inner rounded portions 12d, 13d and the outer rounded portions 12e, 13e, including the rounded portion 11f of the thumb-circumference adhesive portion 11, have appropriate arc radii set to avoid sharp corners, taking into account the durability of, for example, a punching blade used in punching.

[0027] The overall shape of the thumb surrounding adhesive portion 11, the dorsal adhesive portion 12, and the palm side adhesive portion 13 is formed into a bifurcated shape in which the thumb surrounding adhesive portion 11 branches into the dorsal adhesive portion 12 and the palm side adhesive portion 13. In other words, the wrist taping tape A is a pre-cut type in which the thumb surrounding adhesive portion 11, the dorsal adhesive portion 12, and the palm side adhesive portion 13, which are adhesive portions for the three areas that suppress wrist movement, are formed in advance. Here, the bifurcated shape in which the thumb surrounding adhesive portion 11 branches into the dorsal adhesive portion 12 and the palm side adhesive portion 13, can be produced by cutting the tape before processing, such as punching or laser cutting.

[0028] As shown in FIG. 1 , the overall shapes of the thumb wrapping adhesive portion 11, the dorsal adhesive portion 12, and the palm-side adhesive portion 13 are set to be bilaterally symmetrical with respect to a line of symmetry in the non-stretch direction D that passes through a single dividing cut line CL that separates the dorsal adhesive portion 12 from the palm-side adhesive portion 13. This dividing cut line CL is a cutting line that separates the vertical side portion 12b of the dorsal adhesive portion 12 from the vertical side portion 13b of the palm-side adhesive portion 13 during punching. Therefore, when wrist taping tape A is applied to the left hand, the trapezoidal portion that branches off to the left is the dorsal adhesive portion 12, and the trapezoidal portion that branches off to the right is the palm-side adhesive portion 13 ( FIG. 1 ). On the other hand, when wrist taping tape A is applied to the right hand, the lateral positions of the dorsal adhesive portion 12 and the palm-side adhesive portion 13 are reversed from those when applied to the left hand.

[0029] The tape substrate 10 has a mark in the central region of the upper long side 11a of the thumb wraparound attachment portion 11 to indicate the starting position for attachment below the first joint of the thumb. This mark is a first arc-shaped recess 14 formed by depressing the central region of the upper long side 11a of the thumb wraparound attachment portion 11, as shown in Figure 1. This first arc-shaped recess 14 has an arc-shaped radius of curvature that matches the shape of the crease below the first joint of the thumb.

[0030] As shown in FIG. 1, the tape substrate 10 has a second arc-shaped recess 15 formed by recessing the inclined side 12c in a portion of the inclined side 12c of the back-of-hand adhesive portion 12 on the thumb-wraparound adhesive portion 11 side. As shown in FIG. 1, the tape substrate 10 has a third arc-shaped recess 16 formed by recessing the inclined side 13c in a portion of the inclined side 13c of the palm-side adhesive portion 13 on the thumb-wraparound adhesive portion 11 side. The second arc-shaped recess 15 is formed by recessing a region from the intersection of the lower left long side 11b and the inclined side 12c to a position a predetermined distance along the inclined side 12c. The third arc-shaped recess 16 is formed by recessing a region from the intersection of the lower right long side 11c and the inclined side 13c to a position a predetermined distance along the inclined side 13c. The second arc recess 15 and the third arc recess 16 are formed in a smooth arc shape with a larger radius of curvature than the radius of curvature of the first arc recess 14, and areas that are likely to peel off due to repeated movement of the skin on the back or palm of the hand when the patch is attached are removed in advance.

[0031] The adhesive layer 20 is formed on the tape back surface, which is the adhesive surface of the tape substrate 10, and is a type of adhesive layer used for attaching the tape substrate 10 to the skin of the thumb, back of the hand, palm, or wrist. This adhesive layer 20 is not particularly limited, and rubber-based, acrylic-based, or silicone-based adhesives can be used. For example, an acrylic adhesive, which is an adhesive made from an acrylic polymer, can be used. The adhesive layer 20 can be manufactured by a method such as hot melt, emulsion, or melt-extension. For detailed information on the structure of acrylic adhesives, see Japanese Patent No. 6214529, etc. One example is a non-aqueous acrylic adhesive containing an acrylic copolymer consisting of 50 to 99% by mass of a (meth)acrylic acid alkyl ester having an alkyl group containing 8 to 12 carbon atoms, 0 to 12% by mass of a (meth)acrylic acid alkyl ester having an alkyl group containing 1 to 6 carbon atoms, and 1 to 50% by mass of another vinyl monomer copolymerizable with the (meth)acrylic acid alkyl ester, and 0.05 to 3 parts by mass of a crosslinker per 100 parts by mass of the acrylic copolymer. Resins, plasticizers, and other additives may also be included as needed. In the present disclosure, "non-aqueous" means that, when a patch comprising a carrier layer, a support layer, a pressure-sensitive adhesive layer, and a separator layer laminated in this order is obtained through a manufacturing process, the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer is substantially free of water.

[0032] The release material 30 is a release paper or film coated with a release agent, and is applied to cover the adhesive layer 20 primarily to protect the adhesive in the adhesive layer 20. As shown in FIG. 3 , the release material 30 has a thumb-side release material portion 31, a dorsum-side release material portion 32, and a palm-side release material portion 33. The thumb-side release material portion 31 has a shape that corresponds to the outer periphery of the thumb-circumferential adhesive portion 11 of the tape substrate 10. The dorsum-side release material portion 32 has a shape that corresponds to the outer periphery of the dorsum-side adhesive portion 12 of the tape substrate 10. The palm-side release material portion 33 has a shape that corresponds to the outer periphery of the palm-side adhesive portion 13 of the tape substrate 10. The release material 30 has a slit 34 between the thumb-side release material portion 31 and the dorsum-side release material portion 32 and palm-side release material portion 33, which allows the thumb-side release material portion 31 to be cut off or folded and removed before the dorsum-side release material portion 32 and palm-side release material portion 33. Therefore, after the thumb-side release material portion 31 is removed along the slit 34, the dorsum-side release material portion 32 and palm-side release material portion 33, which are divided into two portions by the dividing cut line CL while still attached, can be separately removed.

[0033] [Applying wrist taping (Figure 14)] The task of applying wrist taping tape A by oneself is carried out by the following steps 1, 2, and 3, as shown in FIG.

[0034] In step 1, as shown in Figure 14(a), the thumb side release material portion 31 is removed from the back side of the wrist taping tape A by cutting it along the slit 34. Then, in step 1, the first arc recess 14 formed in the thumb wrapping portion 11 is attached to a portion of the left thumb, aligning it with the position of the crease below the first joint, and the thumb wrapping portion 11 is wrapped around the finger between the first joint and the base of the thumb.

[0035] 14(b), in step 2, the palm-side release material portion 33 is peeled off and removed from the back side of the wrist taping tape A. Then, in step 2, with the wrist bent toward the palm, one of the forked palm-side adhesive portions 13 is pulled toward the wrist and applied to the skin area from the base of the thumb along the palm to the wrist.

[0036] In step 3, as shown in Figure 14(c), peel off and remove the dorsum-side release material portion 32 from the back side of the wrist taping tape A. Then, in step 3, with the thumb raised, the other fork of the dorsum-side adhesive portion 12 is applied to the skin area from the base of the thumb along the back of the hand to the wrist while pulling it straight toward the wrist.

[0037] As described above, wrist taping tape A is a pre-cut type tape formed in a bifurcated shape, and therefore can be easily applied to one's left hand using one's right hand. Furthermore, wrist taping tape A has a bifurcated shape with symmetrical shapes for the dorsal-hand application portion 12 and the palm-side application portion 13. Therefore, the same shape of wrist taping tape A can be used for both the left and right hands, and wrist taping tape A can be easily applied to one's right hand using one's left hand. Furthermore, wrist taping tape A has a first arc-shaped recess 14 formed in the thumb-wrap application portion 11. Therefore, in step 1, by using the first arc-shaped recess 14 as a marker for the application start position when starting application to the thumb, even an inexperienced person can apply the tape to the correct position on the thumb.

[0038] [Wrist taping reduces wrist movement] When observing wrist movements during daily life and exercise, people frequently flex their wrists in both ulnar and dorsiflexion. A common method for restricting this flexion is to wrap a wide, uniform-width roll of tape around the wrist joint multiple times, restricting the movement of the wrist joint itself and suppressing flexion. However, in addition to rolls of tape, pre-cut types are also available, and pre-cut types have the advantage of being easier to use for beginners.

[0039] In response to this, the present inventor first considered a pre-cut type taping tape that inhibits wrist joint movement itself, similar to the roll type. However, the pre-cut type taping tape that inhibits wrist joint movement has a high bending inhibition effect, so the more it aims to inhibit wrist joint movement, the wider and longer the tape becomes, and the larger the tape size becomes. For this reason, it was found that if a large-sized pre-cut type taping tape is bent while being applied to the wrist, the adhesive layers will stick to each other and it will not be able to be applied properly, making it impractical.

[0040] Therefore, when realizing a pre-cut type, the inventors focused on the fact that if a taping tape with a non-stretchable direction for restricting wrist movement is applied from the thumb to the wrist, it is possible to restrict wrist movement by stopping the movement of the skin that stretches when the wrist is bent. Furthermore, the inventors focused on the fact that if the adhesive portion applied from the thumb to the wrist is divided into two adhesive portions, it is possible to restrict both ulnar flexion and dorsiflexion of the wrist. Based on these points, the inventors have created a pre-cut type wrist taping tape A that has a bifurcated shape in which the thumb-wrapping adhesive portion 11 branches into the dorsal hand adhesive portion 12 and the palm hand adhesive portion 13, thereby preventing the tape size from becoming large.

[0041] Therefore, when the wrist taping tape A is applied, the dorsal adhesive portion 12, which is applied along the back of the hand from the base of the thumb to the wrist, and the palmar adhesive portion 13, which is applied along the palm of the hand from the base of the thumb to the wrist, stop the movement of the skin that tends to stretch when the wrist is bent in the ulnar flexion direction, thereby suppressing ulnar flexion of the wrist. In particular, by setting the dimensions of the first length L1 and the second length L2 so that the flexion angle suppression rate during ulnar flexion is 25% or more, it is possible to obtain an effect of suppressing ulnar flexion that is equal to or greater than that when the wrist is double-wrapped with taping tape.

[0042] Furthermore, the palmar adhesive portion 13 of the applied wrist taping tape A, which is applied along the palm side from the base of the thumb to the wrist, prevents the skin from stretching when the wrist is bent in the dorsiflexion direction, thereby suppressing dorsiflexion of the wrist. In particular, by setting the dimension of the third length L3 so that the flexion angle suppression rate during dorsiflexion is 25% or more, it is possible to obtain a dorsiflexion suppression effect equal to or greater than that obtained when the wrist is double-wrapped with taping tape.

[0043] The thumb wrapping adhesive portion 11 has a first arcuate recess 14 formed by depressing the central region of the upper long side portion 11a. Therefore, when the wrist taping tape A is attached, the first arcuate recess 14 allows free movement of the first joint of the thumb while restricting wrist movement, thereby reducing resistance when bending the thumb from the first joint.

[0044] Furthermore, the wrist taping tape A has a second arc-shaped recess 15 formed by recessing the inclined side portion 12c of the dorsal-side adhesive portion 12, and a third arc-shaped recess 16 formed by recessing the inclined side portion 13c of the palm-side adhesive portion 13. Therefore, when the wrist taping tape A is applied, peeling between the dorsal-side adhesive portion 12 and the palm-side adhesive portion 13 is suppressed, even when the thumb is moved in various directions according to its range of motion. In addition, when the wrist taping tape A is applied for a long period of time, peeling between the dorsal-side adhesive portion 12 and the palm-side adhesive portion 13 is suppressed, thereby suppressing a decrease in the ulnar flexion fixation force and a decrease in the flexion angle suppression rate of ulnar flexion and dorsiflexion due to tape peeling.

[0045] [Quick-drying wrist taping] For example, the wrist supports disclosed in Patent Documents 1 and 2 have the problem that when washing hands or doing housework, the wrist support must be removed from the wrist before getting wet, and then reattached after the wet work is finished.

[0046] In response to this, the present inventors conducted a quick-drying test using a test piece of adhesive tape and found that using an adhesive tape whose residual moisture content after 30 minutes is 108% or less makes the tape resistant to water wetting and provides a less stuffy feel when used. Therefore, wrist taping tape A is an adhesive tape having a tape substrate 10 and an adhesive layer 20 laminated together, and a quick-drying test is conducted to select a combination of tape substrate 10 and adhesive layer 20 that results in a residual moisture content of 108% or less 30 minutes after the start of the test.

[0047] Therefore, wrist taping tape A is resistant to water and does not feel stuffy when used, and does not need to be removed when performing wet work or exercising in which a lot of sweat is produced, etc. Therefore, wrist taping tape A can be worn continuously throughout the day without feeling stuffy, including in daily life situations involving water exposure and exercise situations involving sweating.

[0048] [effect] The wrist taping tape A of the present disclosure has the following effects.

[0049] (1) Wrist taping tape A comprises a tape substrate 10 made of a unidirectionally stretchable fabric, an adhesive layer 20 formed on the application surface of the tape substrate 10, and a release material 30 that covers and adheres to the adhesive layer 20. The tape substrate 10 has a thumb-circumference application portion 11 that can be wrapped around the thumb and applied, a dorsal-hand application portion 12 that can be applied along the back of the hand from the base of the thumb to the wrist, and a palm-side application portion 13 that can be applied along the palm from the base of the thumb to the wrist. The thumb-circumference application portion 11 is rectangular in shape, with its long side in the stretch direction C of the fabric. The dorsal-hand application portion 12 and the palm-side application portion 13 are each trapezoidal in shape, with their heights equal to the application length in the non-stretch direction D of the fabric. The overall shape of the thumb-wrapping adhesive part 11, the dorsal adhesive part 12, and the palm-side adhesive part 13 is formed in a bifurcated shape in which the dorsal adhesive part 12 and the palm-side adhesive part 13 branch off from the thumb-wrapping adhesive part 11. The wrist taping tape A of the present disclosure is a pre-cut type with pre-formed application areas for three areas that suppress wrist movement, allowing for easy self-application and suppressing both ulnar flexion and dorsiflexion of the wrist. As a result, when applied by a person who experiences wrist pain, for example, the wrist taping tape A can sufficiently suppress pain when bending the wrist. Furthermore, when applied by a person who plays sports such as golf or tennis, holding a club or racket in the hand, the wrist can be prevented from bending excessively in the ulnar flexion or dorsiflexion directions.

[0050] (2) When an adhesive tape having a tape substrate 10 and an adhesive layer 20 laminated thereto is subjected to the quick-drying test described below, the residual moisture content after a predetermined time (e.g., 30 minutes) from the start of the test is equal to or less than the residual moisture content threshold value (e.g., 108%) for evaluating quick-drying performance. (Quick-drying test) For example, the test is carried out using a 50 x 50 mm adhesive tape specimen according to the following procedure. 1) The dried initial test piece is immersed in a constant temperature water bath at 45°C for 20 minutes. 2) Measure the mass of the test piece after lightly wiping off the moisture with a paper wiper. 3) Place the test piece in a constant temperature and humidity chamber at a temperature of 20°C and a humidity of 65%, and measure the mass of the test piece every 10 minutes. 4) The mass of this test piece is measured every 10 minutes (unit time), for example, up to 30 minutes. The residual moisture content 30 minutes after the start of the quick-drying test is Residual moisture content [%] = {(mass of test piece after 30 minutes) / (initial mass of test piece)} x 100 It is calculated using the formula: The wrist taping tape A of the present disclosure is resistant to water and provides a comfortable, less sweaty feel by selecting a combination of a tape substrate 10 evaluated for quick-drying properties and an adhesive layer 20. As a result, the wrist taping tape A does not need to be removed when performing wet work or exercise that causes a lot of sweating, and can be worn throughout the day.

[0051] (3) When the attachment length of the dorsal adhesive portion 12 and the palmar adhesive portion 13, which corresponds to the height of the trapezoid, is referred to as the first length L1, the first length L1 is a length at which the flexion angle suppression rate during ulnar flexion, in which the wrist is flexed toward the little finger, is equal to or greater than the flexion angle suppression rate threshold value (e.g., 25%) used to evaluate flexion suppression performance. When the wrist taping tape A of the present disclosure is applied, the length of the non-stretchable direction D, which determines the area of ​​the ulnar flexion movement suppression portion E of the dorsal hand application portion 12 involved in ulnar flexion fixation, is secured, thereby achieving an ulnar flexion angle suppression effect according to the determined flexion angle suppression rate threshold.

[0052] (4) When the length of the side corresponding to the upper base of the trapezoid is referred to as the second length L2 of the dorsal adhesive portion 12 and the palmar adhesive portion 13, the second length L2 is a length such that the flexion angle suppression rate during ulnar flexion, in which the wrist is flexed toward the little finger, is equal to or greater than the flexion angle suppression rate threshold value (e.g., 25%) used to evaluate flexion suppression performance. When the wrist taping tape A of the present disclosure is applied, the width in the stretch direction C that determines the area of ​​the ulnar flexion movement suppression portion E of the dorsal hand application portion 12 involved in ulnar flexion fixation is secured, thereby achieving an ulnar flexion angle suppression effect according to the determined flexion angle suppression rate threshold.

[0053] (5) When the length of the side of the palm-side adhesive portion 13 corresponding to the lower base of the trapezoid is referred to as the third length L3, the third length L3 is a length such that the flexion angle suppression rate during dorsiflexion, in which the wrist is bent toward the back, is equal to or greater than the flexion angle suppression rate threshold value (e.g., 25%) used to evaluate the flexion suppression performance. When the wrist taping tape A of the present disclosure is applied, the area of ​​the dorsiflexion movement suppression portion F around the wrist of the palm side application portion 13, which is involved in dorsiflexion fixation, is secured, thereby achieving a dorsiflexion flexion angle suppression effect according to a determined flexion angle suppression rate threshold.

[0054] (6) The overall shapes of the thumb-circumference adhesive portion 11, the dorsal adhesive portion 12, and the palm-side adhesive portion 13 are set to be bilaterally symmetrical with a line of symmetry in the non-stretchable direction D passing through a single dividing cut line CL that separates the dorsal adhesive portion 12 and the palm-side adhesive portion 13. The wrist taping tape A of the present disclosure has bifurcated dorsal adhesive portion 12 and palmar adhesive portion 13, which are symmetrical in shape, so that a single type of wrist taping tape A can suppress both ulnar flexion and dorsiflexion of the wrist for both the left and right wrists of the recipient. As a result, there is no need to prepare two types of taping tape, one specifically for the right wrist and one specifically for the left wrist.

[0055] (7) The tape substrate 10 has a mark (first arcuate recess 14) in the central area of ​​the upper long side 11a of the thumb-wrapping portion 11, which indicates the starting position for application below the first joint of the thumb. When starting to apply the thumb wraparound adhesive portion 11 to the thumb, the wrist taping tape A of the present disclosure can be easily applied to the appropriate position on the thumb by using the mark as a guide for the application start position. As a result, even beginners who are unfamiliar with applying wrist taping tape A can easily apply it to the appropriate position by themselves.

[0056] (8) The mark is a first arcuate recess 14 formed by recessing the central area of ​​the upper long side 11a of the thumb-wrapping attachment part 11. The wrist taping tape A of the present disclosure allows free movement of the first joint of the thumb due to the first arc recess 14, so that when the wrist taping tape A is attached, it can suppress wrist movement while reducing the resistance felt when bending the thumb from the first joint.

[0057] (9) The tape substrate 10 has a second arc-shaped recess 15 formed by recessing the inclined side portion 12c of the back-of-hand adhesive portion 12, and a third arc-shaped recess 16 formed by recessing the inclined side portion 13c of the palm-side adhesive portion 13. Wrist taping tape A of the present disclosure can be prevented from peeling off even when the thumb or hand is moved in various directions or when the hand is shaped in various ways, because the second arc-shaped recess 15 and the third arc-shaped recess 16 maintain the tape adhered to the skin. As a result, even if wrist taping tape A is applied for a long period of time, a decrease in the ulnar flexion fixation force and a decrease in the flexion angle suppression rate of ulnar flexion and dorsiflexion due to tape peeling are prevented.

[0058] (10) Wrist taping tape A comprises a tape substrate 10 made of a fabric that stretches in one direction, and an adhesive layer 20 formed on the application surface of the tape substrate 10. For adhesive tapes in which the tape substrate 10 and the adhesive layer 20 are laminated together, a combination of tape substrate 10 and adhesive layer 20 is selected such that, when subjected to a quick-drying test, the residual moisture content after a predetermined time (e.g., 30 minutes) from the start of the test is equal to or less than the residual moisture content threshold value (e.g., 108%) for evaluating quick-drying performance. (Quick-drying test) For example, the test is carried out using a 50 x 50 mm adhesive tape specimen according to the following procedure. 1) The dried initial test piece is immersed in a constant temperature water bath at 45°C for 20 minutes. 2) Measure the mass of the test piece after lightly wiping off the moisture with a paper wiper. 3) Place the test piece in a constant temperature and humidity chamber at a temperature of 20°C and a humidity of 65%, and measure the mass of the test piece every 10 minutes. 4) The mass of this test piece is measured every 10 minutes (unit time), for example, up to 30 minutes. The residual moisture content 30 minutes after the start of the quick-drying test is Residual moisture content [%] = {(mass of test piece after 30 minutes) / (initial mass of test piece)} x 100 It is calculated using the formula: The wrist taping tape A of the present disclosure is provided by selecting a combination of a tape substrate 10 and an adhesive layer 20 that are evaluated for their quick-drying properties, thereby providing a wrist taping tape A that is resistant to water and has a less stuffy feel when used.

[0059] The wrist taping tape of the present disclosure has been described above with reference to the drawings. However, the specific configuration of the wrist taping tape of the present disclosure is not limited to the embodiments, and design changes and additions are permitted as long as they do not deviate from the gist of the invention according to each claim.

[0060] In the above-described embodiment, a preferred example has been shown in which the overall shapes of the thumb wraparound adhesive portion 11, the dorsal adhesive portion 12, and the palm-side adhesive portion 13 are set to be symmetrical with a line of symmetry in the non-stretchable direction D passing through a single dividing cut line CL that separates the dorsal adhesive portion 12 and the palm-side adhesive portion 13. However, the overall shapes of the thumb wraparound adhesive portion, the dorsal adhesive portion, and the palm-side adhesive portion are not limited to being set to be symmetrical. For example, the dorsal adhesive portion may be shaped specifically to suppress the flexion angle during ulnar flexion, in which the wrist is bent toward the little finger, and the palm-side adhesive portion may be shaped specifically to suppress the flexion angle during dorsiflexion, in which the wrist is bent toward the back of the wrist, resulting in an asymmetrical overall shape.

[0061] In the above-described embodiment, a preferred example has been shown in which the first arc-shaped recess 14 is formed in the central region of the upper long side 11a of the thumb wraparound adhesive part 11 as a mark indicating the start position for attachment below the first joint of the thumb. However, the mark is not limited to the example of forming the first arc-shaped recess. The mark may be any mark that at least indicates the start position for attachment below the first joint of the thumb. For example, a round dot or a triangular dot may be printed in the central region of the upper long side of the thumb wraparound adhesive part, or a round hole may be formed.

[0062] In the above-described embodiment, an example was shown in which the second arc-shaped recess 15 was formed by recessing a portion of the inclined side portion 12c of the dorsal-side adhesive portion 12 on the thumb-wraparound adhesive portion 11 side, and the third arc-shaped recess 16 was formed by recessing a portion of the inclined side portion 13c of the palm-side adhesive portion 13 on the thumb-wraparound adhesive portion 11 side. However, the second arc-shaped recess and the third arc-shaped recess are not limited to being formed by recessing a portion of the thumb-wraparound adhesive portion on the two inclined side portions. The second arc-shaped recess and the third arc-shaped recess may be formed by recessing the entire area of ​​the two inclined side portions, for example. Furthermore, the second arc-shaped recess and the third arc-shaped recess may be formed by specifying an area of ​​the dorsal-side adhesive portion where peeling is likely to occur, and the third arc-shaped recess may be formed by specifying an area of ​​the palm-side adhesive portion where peeling is likely to occur, and the second arc-shaped recess and the third arc-shaped recess may be formed in different positions and shapes.

[0063] [Application] The wrist taping tape A of the present disclosure can be used as a pre-cut type taping tape that can be easily applied by people who experience wrist pain, people who exercise using their wrists, etc. [Example]

[0064] Hereinafter, the present disclosure will be described with reference to Examples 1 and 2 and a comparative example, but the present disclosure is not limited to these.

[0065] Wrist taping tape A of Example 1 used a knitted fabric with 310 dtex polyurethane filaments in the warp and 78 dtex ester filaments in the weft as the tape substrate 10. Wrist taping tape A of Example 2 used a PET woven fabric described below as the tape substrate 10. An acrylic adhesive that allows water vapor and air to easily pass through was used as the adhesive layer 20 in Examples 1 and 2. Silicone-treated glassine paper was used as the release material 30.

[0066] Wrist taping tape A was produced as follows: 100 parts by mass of an acrylic adhesive obtained by copolymerizing 2-ethylhexyl acrylate / vinyl acetate / acrylic acid (85 parts by mass / 11 parts by mass / 4 parts by mass) was mixed with 0.058 parts by mass of a crosslinking agent (manufactured by Mitsubishi Gas Chemical Company, Inc., trade name "TETRAD (registered trademark) X") in an organic solvent solution, and the solution was applied in an amount of 40 g / m2 to the entire surface of release liner 30 that had been release-treated with silicone resin. 2 Next, as a breathability treatment, distilled water was sprayed onto the wet adhesive coated surface, and then heated at a maximum temperature of 125°C for 5 minutes to form fine pores, forming an adhesive layer 20 made of breathable acrylic resin. Next, a tape substrate 10 (support) was placed on the adhesive layer 20, and the tape substrate 10 and the adhesive layer 20 coated on the release liner 30 were bonded together by passing the tape substrate 10 between heated rolls. The tape was then cut to obtain a pre-cut wrist taping tape A comprising the tape substrate 10, adhesive layer 20, and release liner 30.

[0067] [Evaluation of quick-drying properties of wrist taping (Fig. 4, Fig. 5)] For adhesive tapes made of a tape substrate 10 and an adhesive layer 20, a combination of tape substrate 10 and adhesive layer 20 is selected such that, when subjected to a quick-drying test, the residual moisture content 30 minutes after the start of the test is equal to or less than 108%, which is set as the residual moisture content threshold for evaluating quick-drying performance.

[0068] The quick-drying test (measurement of residual moisture content) uses a 50 x 50 mm adhesive tape test piece. The test begins by immersing the dried initial test piece in a constant temperature water bath at 45°C for 20 minutes. The next step is to measure the mass of the test piece after lightly wiping off the moisture with a paper wiper such as Kimtowel (registered trademark). The next step is to place the test piece in a constant temperature and humidity bath at 20°C and 65% humidity, and measure the mass of the test piece every 10 minutes. This mass measurement of the test piece every 10 minutes continues for 30 minutes.

[0069] The residual moisture content 30 minutes after the start of the quick-drying test is Residual moisture content [%] = {(mass of test piece after 30 minutes) / (initial mass of test piece)} x 100 It is calculated using the formula:

[0070] The quick-drying test was conducted on three types of test pieces (Example 1, Example 2, and Comparative Example) with different combinations of tape substrate and adhesive layer. Example 1 is an example of a combination of a tape substrate 10 made of a woven fabric of polyurethane filaments and polyester filaments with an adhesive layer 20 made of an acrylic adhesive. Example 2 is an example of a combination of a tape substrate 10 made of a PET woven fabric with an adhesive layer 20 made of an acrylic adhesive. The Comparative Example is an example of a combination of a tape substrate made of a non-stretch woven cotton fabric with an adhesive layer made of an acrylic adhesive. PET is an abbreviation for "Poly Ethylene Terephthalate." Non-stretch woven cotton fabric is a fabric commonly used as a tape substrate for roll-type taping tapes.

[0071] Here, the adhesive layer 20 made of an acrylic adhesive that is permeable to water vapor and air has ventilation holes 21 that allow the passage of water vapor and air, as shown in the conceptual diagram of Figure 4. These ventilation holes 21 were formed by applying a foamed acrylic adhesive to the tape substrate 10 and then perforating the adhesive after the application. The residual moisture content threshold of 108% after 30 minutes was set by comprehensively taking into consideration the results of quick-drying tests conducted with different combinations of tape substrate and adhesive layer, as well as sensory evaluations by tape users that the tape does not become stuffy even when sweating and does not peel off even when wet.

[0072] The test results of quick-drying tests using test pieces of Example 1, Example 2, and Comparative Example are shown in Figure 5. In Example 1, the residual moisture content at the time of water absorption was 123.4%, but after 30 minutes it was 107.8% (≦108%). In Example 2, the residual moisture content at the time of water absorption was 138.0%, but after 30 minutes it was 104.0% (≦108%). In the Comparative Example, the residual moisture content at the time of water absorption was 154%, but after 30 minutes it was 133% (>108%).

[0073] Thus, in Examples 1 and 2, when the quick-drying test was conducted, the residual moisture content 30 minutes after the start of the test met the condition of 108% or less, which is set as the residual moisture content threshold for evaluating quick-drying performance. Therefore, for wrist taping tape A, the combination of tape substrate 10 and adhesive layer 20 of Example 1 or Example 2, which was evaluated as having quick-drying properties, was selected.

[0074] [Size evaluation configuration of wrist taping (Fig. 6 to Fig. 13)] With regard to the dorsal adhesive portion 12 and the palmar adhesive portion 13, when the adhesive length corresponding to the height of the trapezoid is referred to as the first length L1, the first length L1 is set to a length such that the flexion angle suppression rate during ulnar flexion, in which the wrist is flexed toward the little finger, is equal to or greater than 25%, which is determined as the flexion angle suppression rate threshold for evaluating flexion suppression performance.

[0075] With regard to the dorsal adhesive portion 12 and the palmar adhesive portion 13, when the length of the side corresponding to the upper base of the trapezoid is referred to as the second length L2, the second length L2 is set to a length such that the flexion angle suppression rate during ulnar flexion, in which the wrist is flexed toward the little finger, is equal to or greater than 25%, which is determined as the flexion angle suppression rate threshold for evaluating flexion suppression performance.

[0076] In the palm side adhesive portion 13, the side length corresponding to the lower base of the trapezoid is referred to as the third length L3. The third length L3 is set to a length such that the flexion angle suppression rate during dorsiflexion, in which the wrist is bent toward the back, is equal to or greater than 25%, which is determined as the flexion angle suppression rate threshold for evaluating flexion suppression performance.

[0077] To inhibit ulnar flexion, the tape must be applied to the area from the base of the thumb to the wrist, as shown in the left part of Fig. 6. The area of ​​the wrist taping tape A corresponding to this application area is the area of ​​the ulnar flexion inhibition portion E of the dorsal hand side application portion 12 and the palm side application portion 13, as shown in the right part of Fig. 6, and it is necessary to secure the area of ​​the two ulnar flexion inhibition portions E. For this reason, the first length L1 and the second length L2 shown in Fig. 7 are important lengths for inhibiting ulnar flexion.

[0078] On the other hand, when dorsiflexion is to be inhibited, it is necessary to apply the tape to the area around the wrist on the palm side, as shown in the center of Fig. 6. The area of ​​the wrist taping tape A corresponding to this application area is the area of ​​the dorsiflexion inhibition portion F of the palm-side application portion 13, as shown in the right part of Fig. 6, and it is necessary to secure the area of ​​the dorsiflexion inhibition portion F. For this reason, the third length L3 shown in Fig. 7 is an important length for inhibiting dorsiflexion.

[0079] Therefore, for wrist taping A, the first length L1 and the second length L2 are selected as evaluation sizes related to ulnar flexion fixation, and the third length L3 is selected as evaluation size related to dorsiflexion fixation.

[0080] Next, wrist taping tape A must be sized to suppress both ulnar flexion and dorsiflexion movements regardless of individual differences in hand size. Therefore, the inventors calculated the relationship between hand dimensions (percentile + 25 mm) and the proportion of people using Japanese hand dimension data (Artificial Intelligence Research Center: 327 men and 203 women). From these calculation results, the relationship characteristics for hand dimensions and the proportion of people using the tape were obtained for both women and men, as shown in Figure 8. As a result, the relationship characteristics in Figure 8 revealed that wrist taping tape A requires a minimum length of 85 mm from the base of the thumb to the wrist. Furthermore, it was revealed that when the length from the base of the thumb to the wrist is 100 mm or longer, the proportion of women using wrist taping tape A is 100% and the proportion of men is 80% or more. Here, the "percentile" is the linear distance from the center of the wrist crease to the crease at the base of the thumb when the fingers and palm are extended, the thumb is abducted, and the other four fingers are aligned. The "+25mm" is the additional distance added to ensure that the tape is long enough to reach from the wrist crease to the wrist joint.

[0081] The method for measuring the bending angle inhibition rate for size evaluation is as follows. <About ulnar flexion (Figure 9)> 1. Take a photo with your hand outstretched. 2. Without applying the sample, take a photograph with the wrist flexed to the maximum. 3. Attach (wear) the sample on your wrist, flex it to the point where you feel discomfort, and take a photograph. <Dorsiflexion (Fig. 10)> 1. Take a photo with your hand outstretched. 2. Take a photograph without applying the sample, with the wrist flexed to the maximum extent. 3. Attach (wear) the sample on your wrist, flex it to the point where it feels uncomfortable, and take a photograph. <About image analysis> Using image analysis software (e.g., "Image J (NIH, USA)"), the flexion angle is calculated at three points: the forearm, wrist, and fingertip. The flexion angle suppression rate, which indicates the percentage by which the range of motion is suppressed by attaching or wearing the sample compared to when the sample is not attached or not worn, is calculated as follows: Bending angle suppression rate [%] = {(Bending angle without adhesive - bending angle with adhesive) / (Bending angle without adhesive)} x 100 The flexion angle is calculated using the formula below. The flexion angle immediately after application is used as the flexion angle during application. The flexion angle of ulnar flexion is the angle formed by the line on the side of the hand along the little finger and the extension line of the side of the wrist when the wrist is flexed to the maximum toward the little finger, as shown in Figure 9. The flexion angle of dorsiflexion is the angle formed by the line on the palm of the hand along the palm and the extension line of the underside of the wrist when the wrist is flexed to the maximum toward the back, as shown in Figure 10.

[0082] The flexion angle suppression rate threshold is a value that evaluates the ability to suppress ulnar flexion and dorsiflexion movements to a targeted or required flexion suppression angle. In the embodiment, the flexion angle suppression rate threshold is set to a flexion angle suppression rate of 25% based on experimental results of the flexion angle suppression rate of ulnar flexion and dorsiflexion when a taping tape with a fixed tape width is wrapped twice around the wrist and fixed. Therefore, when the condition of the flexion angle suppression rate threshold of 25% or more is met, wrist taping tape A can achieve an effect of suppressing ulnar flexion and dorsiflexion movements that is equal to or greater than that when the taping tape is wrapped twice around the wrist and fixed.

[0083] The flexion angle suppression rate for setting the first length L1 was measured by fixing the second length L2 at 25 mm, the third length L3 at 62.5 mm, and varying the first length L1 from 80 mm to 105 mm in 5 mm increments, as shown in Figure 11. The results were evaluated according to the following flexion fixation strength evaluation criteria. ○: The flexion angle suppression rate during ulnar flexion is 25% or more. △: The flexion angle suppression rate during ulnar flexion is less than 25%. As shown in FIG. 11, the evaluation result showed that when the first length L1 is 85 mm or more, the condition for suppressing the flexion angle during ulnar flexion by the ulnar flexion fixing force is met.

[0084] The flexion angle suppression rate for setting the second length L2 was measured by fixing the first length L1 at 100 mm, the third length L3 at 62.5 mm, and varying the second length L2 from 15 mm to 25 mm in 5 mm increments, as shown in Figure 12. The results were evaluated according to the following flexion fixation strength evaluation criteria. ○: The flexion angle suppression rate during ulnar flexion is 25% or more. △: The flexion angle suppression rate during ulnar flexion is less than 25%. As shown in FIG. 12, the evaluation result showed that the condition for suppressing the flexion angle during ulnar flexion was met when the second length L2 was 20 mm or more.

[0085] The flexion angle suppression rate for setting the third length L3 was measured in 5 mm increments from 50.0 mm to 65.0 mm, with the first length L1 fixed at 100 mm, the second length L2 fixed at 25 mm, and the third length L3 changed from 47.5 mm to 50.0 mm, as shown in Figure 13. The results were evaluated according to the following flexion fixation strength evaluation criteria. ○: The flexion angle suppression rate during dorsiflexion is 25% or more. △: The flexion angle suppression rate during dorsiflexion is less than 25%. As shown in FIG. 13, the evaluation result showed that the condition for suppressing the flexion angle during dorsiflexion was met when the second length L2 was 50.0 mm or more.

[0086] The wrist taping tape A of each embodiment is set to a first length L1, a second length L2, and a third length L3 that satisfy the condition that the flexion angle suppression rate is 25% or more when the flexion angle suppression rate is measured. That is, the first length L1 is set to 85 mm or more, preferably in the range of about 100 mm. The second length L2 is set to 20 mm or more, preferably in the range of about 25 mm. The third length L3 is set to 50 mm or more, preferably in the range of about 62.5 mm.

[0087] In the above-described embodiment, a preferred example was shown in which a combination of a tape substrate 10 and a pressure-sensitive adhesive layer 20 was selected such that, when a quick-drying test was conducted, the residual moisture content 30 minutes after the start of the test was 108% or less. However, the predetermined time from the start of the quick-drying test is not limited to the 30 minutes set in Example 1, but may be shorter or longer than 30 minutes. The residual moisture content threshold for evaluating quick-drying performance is not limited to the 108% value set in the embodiment. For example, in applications requiring quick drying performance against water wetting or humidity, the residual moisture content threshold may be set to a value lower than 108%, and a combination of a tape substrate and a pressure-sensitive adhesive layer may be selected. For example, in applications that are not subject to water wetting or humidity, or that are unlikely to be subject to water wetting or humidity, the residual moisture content threshold may be set to a value higher than 108%, and a combination of a tape substrate and a pressure-sensitive adhesive layer may be selected.

[0088] In the above-described embodiment, the first length L1 and the second length L2 of the dorsal adhesive portion 12 are preferably set to lengths such that the flexion angle suppression rate during ulnar flexion (bending the wrist toward the little finger) is 25% or more. However, the flexion angle suppression rate threshold used to set the first and second lengths is not limited to the value of 25% set in the embodiment. For example, in applications requiring high flexion angle suppression performance during ulnar flexion, the flexion angle suppression rate threshold may be set to a value higher than 25%, and the first and second lengths of the dorsal adhesive portion may be set to a value lower than 25%, and the first and second lengths of the dorsal adhesive portion may be set to a value lower than 25%, and the first and second lengths of the dorsal adhesive portion may be set to a value higher than 25%, and the second lengths of the dorsal adhesive portion may be set to a value lower than 25%, and the ... higher than 25%, and the second lengths of the dorsal adhesive portion may be set to a value higher than 25%, and the second lengths of the dorsal adhesive portion may be set

[0089] In the above-described embodiment, a preferred example was shown in which the third length L3 of the palm-side adhesive portion 13 is set to a length such that the flexion angle suppression rate during dorsiflexion (bending the wrist back) is 25% or more. However, the flexion angle suppression rate threshold value used to set the third length is not limited to the value of 25% set in the embodiment. For example, in applications requiring high flexion angle suppression performance during dorsiflexion, the flexion angle suppression rate threshold value may be set to a value higher than 25% to set the third length of the palm-side adhesive portion. For example, in applications requiring low flexion angle suppression performance during dorsiflexion, the flexion angle suppression rate threshold value may be set to a value lower than 25% to set the third length of the palm-side adhesive portion. [Explanation of symbols]

[0090] A Wrist taping tape 10 Tape substrate 11 Thumb circumference attachment part 11a Upper long side 12. Back of hand attachment area 12c Slanted side 13 Palmar attachment area 13c Slope side 14 First circular arc recess (mark) 15 Second circular arc recess 16 Third arc recess 20 adhesive layer 30 Release material 31 Thumb side release material 32 Back of hand peeling material 33 Palm side release material 34 Slit C Fabric stretch direction D: Non-stretch direction of fabric L1 First length L2 Second length L3 Third length CL division cut line

Claims

1. A tape substrate made of a fabric that stretches in one direction; a pressure-sensitive adhesive layer formed on the application surface of the tape substrate; a release material that covers and is attached to the pressure-sensitive adhesive layer, the tape substrate has a thumb-wrapping adhesive portion that can be wrapped around the thumb and applied, a dorsum-side adhesive portion that can be applied along the back of the hand from the base of the thumb to the wrist, and a palm-side adhesive portion that can be applied along the palm of the hand from the base of the thumb to the wrist, The shape of the thumb-wraparound adhesive portion is a rectangle whose long side is in the stretch direction of the fabric, the back-of-hand attachment portion and the palm-side attachment portion each have a trapezoidal shape whose height is equal to the attachment length in the non-stretch direction of the fabric, the thumb surrounding adhesive portion, the dorsum-side adhesive portion, and the palm-side adhesive portion have an overall shape formed into a bifurcated branch shape in which the dorsum-side adhesive portion and the palm-side adhesive portion branch off from the thumb surrounding adhesive portion.

2. The wrist taping tape according to claim 1, A wrist taping tape in which the adhesive tape having the tape substrate and the adhesive layer laminated together has a residual moisture content of less than the residual moisture content threshold value for evaluating quick-drying performance after a specified time from the start of the quick-drying test described below. (Quick-drying test) The test is carried out using a test piece of adhesive tape according to the following procedure. 1) The dried initial test piece is immersed in a constant temperature water bath for a set period of time. 2) After lightly wiping off the moisture with a paper wiper, measure the mass of the test piece. 3) The test piece is placed in a constant temperature and humidity chamber, and the mass of the test piece is measured every unit time. 4) The mass of this test piece per unit time is measured until a predetermined time has elapsed. The residual moisture content after a specified time from the start of the quick-drying test is Residual moisture content [%] = {(mass of test piece after a predetermined time) / (initial mass of test piece)} × 100 It is calculated using the formula:

3. The wrist taping tape according to claim 1, When the adhesion length of the dorsal adhesive portion and the palm adhesive portion corresponding to the height of the trapezoid is referred to as a first length, the first length is a length at which the flexion angle suppression rate during ulnar flexion, in which the wrist is flexed toward the little finger, is equal to or greater than a flexion angle suppression rate threshold value for evaluating flexion suppression performance of the wrist taping tape.

4. The wrist taping tape according to claim 3, When the length of the side corresponding to the upper base of the trapezoid is referred to as a second length, the second length of the dorsal adhesive portion and the palmar adhesive portion is such that the flexion angle suppression rate during ulnar flexion, in which the wrist is flexed toward the little finger, is equal to or greater than a flexion angle suppression rate threshold value for evaluating flexion suppression performance.

5. The wrist taping tape according to claim 4, When the length of the side corresponding to the lower base of the trapezoid is referred to as a third length, the third length of the palm-side adhesive portion is such that the flexion angle suppression rate during dorsiflexion, in which the wrist is flexed toward the back, is equal to or greater than a flexion angle suppression rate threshold value for evaluating flexion suppression performance.

6. The wrist taping tape according to any one of claims 1 to 5, The overall shapes of the thumb surrounding adhesive portion, the dorsum of the hand adhesive portion, and the palm side adhesive portion are set to be bilaterally symmetrical with respect to a line of symmetry in a non-stretchable direction that passes through a single dividing cut line that separates the dorsum of the hand adhesive portion from the palm side adhesive portion.

7. The wrist taping tape according to claim 6, The tape substrate has a mark in the central region of the upper long side of the thumb-wrapping portion to indicate the starting position for application to the underside of the first joint of the thumb.

8. The wrist taping tape according to claim 7, The wrist taping tape, wherein the mark is a first arcuate recess formed by depressing a central region of the upper long side of the thumb-wrapping portion.

9. The wrist taping tape according to claim 6, the tape substrate has a second arc-shaped recess formed by recessing the inclined side portion of the back-of-hand adhesive portion, and a third arc-shaped recess formed by recessing the inclined side portion of the palm-side adhesive portion.

10. A tape substrate made of a fabric that stretches in one direction; a pressure-sensitive adhesive layer formed on the application surface of the tape substrate, The wrist taping tape is an adhesive tape in which the tape substrate and the adhesive layer are laminated together, and a combination of the tape substrate and the adhesive layer is selected such that, when subjected to the quick-drying test described below, the residual moisture content after a specified time from the start of the test is equal to or less than the residual moisture content threshold value for evaluating quick-drying performance. (Quick-drying test) The test is carried out using a test piece of adhesive tape according to the following procedure. 1) The dried initial test piece is immersed in a constant temperature water bath for a set period of time. 2) After lightly wiping off the moisture with a paper wiper, measure the mass of the test piece. 3) The test piece is placed in a constant temperature and humidity chamber, and the mass of the test piece is measured every unit time. 4) The mass of this test piece per unit time is measured until a predetermined time has elapsed. The residual moisture content after a specified time from the start of the quick-drying test is Residual moisture content [%] = {(mass of test piece after a predetermined time) / (initial mass of test piece)} × 100 It is calculated using the formula:

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