gloves

The glove's innovative structure with recessed conductive and protruding non-conductive portions, combined with a conductive coating, addresses conductivity fluctuations and wear issues, ensuring stable resistivity and durability for antistatic protection.

JP7829228B2Active Publication Date: 2026-03-13SHOWA GLOVE CO
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-10-20
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Conventional antistatic gloves with low conductive fiber content face issues of fluctuating conductivity due to wear, leading to potential electrostatic discharge risks and durability concerns.

Method used

A glove design featuring a repeating structure of conductive and non-conductive portions with conductive yarn recessed and non-conductive yarn protruding, using conductive composite yarn with a low elongation core yarn, and optionally coated with a conductive coating, to maintain consistent conductivity and durability.

Benefits of technology

The design ensures stable volume resistivity within a certain range, preventing conductive yarn wear and enhancing durability while providing anti-slip performance and improved safety against electrostatic discharge.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a glove whose volume resistance value is easily settled within a certain range and which is excellent in durability.SOLUTION: A body part 10a of a glove 1 has a repetitive structure of a belt-like conductive portion 20 including conductive yarn and a belt-like non-conductive portion 30 which does not include the conductive yarn at least in a part of a palm portion. The body part 10 has unevenness in which the conductive portion 20 is set to be a recess part, and the non-conductive portion to be a protrusion part on a surface. The conductive portion 20 is configured of conductive composite yarn having the conductive yarn and core yarn covered by the conductive yarn. The conductive yarn is arranged across a surface and a rear face of the body part 10a and an elongation rate of the core yarn is 3% or less.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] This invention relates to gloves. [Background technology]

[0002] Work gloves that remove static electricity are known (see, for example, Japanese Utility Model Publication No. 57-161899). Such work gloves are conductive and can reduce the danger of working in flammable or explosive atmospheres, and can prevent electrostatic discharge damage to electronic equipment held in the hand.

[0003] On the other hand, if the resistance of the gloves is too low, there is a risk of electric shock to the worker, for example, or of causing an electrical short circuit when gripping electronic equipment. For this reason, the above-mentioned work gloves are so-called antistatic gloves, in which conductive fibers are mixed with non-conductive fibers, and the amount of conductive fibers is adjusted so that the overall electrical resistance (volume resistivity) is the desired value. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Official Gazette No. 57-161899 [Overview of the project] [Problems that the invention aims to solve]

[0005] In the conventional antistatic gloves described above, the conductive fiber content is said to be around 0.01% to 5% by mass. This content is thought to correspond to the ratio of the glove's surface area, meaning that the conductive portion of the glove's surface is 5% or less. In such cases, if a relatively small amount of conductive fiber wears down, the conductivity of the glove may fluctuate significantly or localized areas may lose their conductivity. Therefore, in order to maintain the conductive function and ensure durability in antistatic gloves, it is important to prevent the wear of the conductive threads.

[0006] This invention has been made in view of these circumstances, and aims to provide gloves that have a volume resistivity that easily falls within a certain range and are highly durable. [Means for solving the problem]

[0007] A glove according to one aspect of the present invention comprises a glove body made of knitted fiber yarn, the glove body having a main body portion, five bottomed tubular finger sections, and a tubular hem portion, the main body portion being formed in a bag shape to cover the wearer's palm and back of the hand, the five finger sections extending from the main body portion to cover the wearer's first to fifth fingers, and the hem portion extending in the opposite direction to the five finger sections, wherein the main body portion has a repeating structure of a band-shaped conductive portion containing conductive yarn and a band-shaped non-conductive portion not containing conductive yarn in at least a part of the palm portion, the main body portion having irregularities on its surface with the conductive portion being a recess and the non-conductive portion being a convex portion, the conductive portion being composed of a conductive composite yarn having the conductive yarn and a core yarn covered by the conductive yarn, the conductive yarn being arranged across the front and back surfaces of the main body portion, and the elongation rate of the core yarn being 3% or less. [Effects of the Invention]

[0008] The gloves of the present invention have a volume resistivity that easily falls within a certain range and are highly durable. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a schematic perspective view of a glove according to one embodiment of the present invention, as seen from the palm side. [Figure 2] Figure 2 is a schematic plan view, enlarged, of the repeating structure shown in Figure 1. [Figure 3] Figure 3 is a simulated cross-sectional view along line AA in Figure 2. [Figure 4] Figure 4 is a schematic side view showing the structure of the conductive composite yarn. [Figure 5] Figure 5 is a schematic perspective view of a glove from the palm side, representing an embodiment different from that shown in Figure 1. [Figure 6] Figure 6 is a schematic perspective view of the glove shown in Figure 5 as seen from the back of the hand side. [Figure 7] Figure 7 is a schematic perspective view of the glove in the embodiment as seen from the palm side.

Mode for Carrying Out the Invention

[0010] [Description of Embodiments of the Present Invention] First, embodiments of the present invention will be listed and described.

[0011] The glove according to one aspect of the present invention includes a glove body knitted from a fiber yarn. The glove body has a main body part, five bottomed cylindrical finger receiving parts, and a cylindrical hem part. The main body part is formed in a bag shape so as to cover the palm and the back of the hand of the wearer. The five finger receiving parts are extended from the main body part so as to cover the first finger to the fifth finger of the wearer respectively. The hem part is extended in a direction opposite to the five finger receiving parts. The glove is such that the main body part has a repeating structure of a strip-shaped conductive part containing conductive yarn and a strip-shaped non-conductive part not containing conductive yarn at at least a part of the palm portion. The main body part has irregularities on its surface with the conductive part being a concave part and the non-conductive part being a convex part. The conductive part is composed of a conductive composite yarn having the conductive yarn and a core yarn covered by the conductive yarn. The conductive yarn is arranged across the front and back surfaces of the main body part, and the elongation rate of the core yarn is 3% or less.

[0012] Since the conductive part is located in the concave part with respect to the non-conductive part that is located in the convex part and sandwiches the conductive part, the conductive part does not strongly contact the object to be gripped. Therefore, the glove can prevent wear of the conductive yarn. Further, since the conductive yarn is arranged across the front and back surfaces of the main body part, it is easy to keep the volume resistivity indicating the conductivity between the front and back surfaces of the glove within a certain range.

[0013] It is preferable that the elongation rate of the core thread is lower than that of the conductive thread. By making the elongation rate of the core thread lower than that of the conductive thread, it is possible to maintain contact between the conductive thread and the object being gripped, while more reliably preventing the conductive thread from extending beyond the outermost surface of the glove.

[0014] The ratio of the fineness of the non-conductive yarn constituting the non-conductive portion to the conductive composite yarn is preferably 1.08 times or more. By setting the fineness ratio to be above the lower limit, it is possible to easily create an uneven surface with the conductive portion as a recess and the non-conductive portion as a convex portion.

[0015] It is preferable that the elongation rate of the non-conductive yarn is greater than that of the conductive composite yarn. By giving the non-conductive yarn a greater elongation rate than the conductive composite yarn in this way, it becomes easier to form the convex portion of the non-conductive part.

[0016] The core thread described above should preferably be a cut-resistant thread. By using a cut-resistant thread as the core thread, workers can be protected not only from static electricity but also from cuts.

[0017] The non-conductive yarn described above is composed of a cut-resistant yarn and a reinforcing yarn, and the reinforcing yarn is preferably a single-covered yarn with a spandex core covered. By using a single-covered yarn with a spandex core covered in this way as the reinforcing yarn, the cut-resistant yarn is arranged in a meandering manner due to the contraction force of the spandex. Since this meandering occurs in the thickness direction of the glove, the non-conductive portion becomes thicker, and the cut resistance can be improved.

[0018] It is preferable to cover part or all of the repeating structure of the main body with a conductive coating made of resin or rubber. By covering part or all of the repeating structure of the main body with a conductive coating made of resin or rubber in this way, anti-slip performance can be provided and the durability of the glove can be improved.

[0019] On the surface of the main body, it is preferable that a yarn in which a spandex core is covered with nylon fibers is arranged in a plating knit in the area covered by the conductive coating. By arranging a yarn in which a spandex core is covered with nylon fibers in a plating knit in the area covered by the conductive coating on the surface of the main body in this way, the adhesion with the conductive coating is improved, and the controllability of the volume resistivity and the durability of the glove can be enhanced.

[0020] Here, the "elongation rate" of a yarn (fiber) is calculated by marking a 60cm length of yarn at 20cm intervals with a 0.075g weight attached, then replacing the weight with a 6g weight, reading the intervals indicated by the marks, and calculating the elongation rate using the following formula. When using yarns with different elongation rates in combination, the following procedure is performed before measurement to create a condition similar to knitted yarn: With a 20g weight attached to each yarn, the ends of each yarn are gathered together to form a single bundle, and a 0.075g weight is attached to this bundle, treating it as a single yarn. Then, the 20g weight is removed and measurement begins. [Elongation Rate] = ([Distance when using a 6g weight (cm)] - 20) / 20 × 100 (%)

[0021] [Details of the Embodiments of the Invention] The gloves according to each embodiment of the present invention will be described below with reference to the drawings as appropriate.

[0022] [First Embodiment] The glove 1 shown in Figure 1 comprises a glove body 10 made of knitted fiber threads.

[0023] The glove body 10 has a main body 10a, five bottomed cylindrical finger sections 10b, and a cylindrical hem 10c. The main body 10a is formed in a pouch shape to cover the wearer's palm and the back of their hand. The five finger sections 10b extend from the main body 10a to cover the wearer's first to fifth fingers, respectively. The hem 10c extends in the opposite direction from the five finger sections 10b.

[0024] <Repetitive structure> The main body portion 10a has a repeating structure 40 in at least a part of the palm area, as shown in Figures 2 and 3, consisting of a strip-shaped conductive portion 20 containing conductive threads 21 and a strip-shaped non-conductive portion 30 not containing conductive threads 21. Furthermore, as shown in Figure 3, the main body portion 10a has irregularities on its surface, with the conductive portion 20 being recessed 20a and the non-conductive portion 30 being convex 30a.

[0025] The repeating structure 40 is preferably provided to cover the entire palm area, as shown in Figure 1. Although the palm area is often used to hold objects, the electronic components can be protected regardless of which part of the palm area comes into contact with the object. The repeating structure 40 may also cover the back of the hand. By providing the repeating structure 40 on the back of the hand as well, safety can be improved in that area as well.

[0026] The lower limit of the course ratio between adjacent conductive parts 20 and non-conductive parts 30 is 1:2, with 1:3 being more preferable. On the other hand, the upper limit of the course ratio is 1:5, with 1:4 being more preferable. If the course ratio is less than the lower limit, the width of the non-conductive parts 30 constituting the convex part 30a is relatively narrow, and deformation may cause the conductive part 20 constituting the concave part 20a to come into strong contact with the object being gripped. This may reduce the wear prevention effect of the conductive thread 21. Conversely, if the course ratio exceeds the upper limit, the volume resistivity of the repeating structure 40 may become too high, making it easier for the worker to become electrostatically charged.

[0027] The number of courses in the conductive portion 20 is preferably 1 to 3 courses, more preferably 1 to 2 courses, and even more preferably 1 course. By keeping the number of courses in the conductive portion 20 within the above range, the width of the conductive portion 20 sandwiched between the non-conductive portion 30 is limited, making it easier to enhance the wear prevention effect of the conductive thread 21.

[0028] The lower limit of the volume resistivity specified in EN61340-2-3 for repeating structure 40 is 3.5 × 10⁻⁶. 3 Ω is preferred, 1.0 × 10 4 Ω is more preferable. On the other hand, the upper limit of the above volume resistivity is 1.0 × 108 Ω is preferred, and 1.0×10 7 Ω is more preferred. If the volume resistivity is less than the above lower limit, there is a risk of electrical short - circuit failure when the object to be gripped is gripped. Conversely, if the volume resistivity exceeds the above upper limit, there is a risk that the operator is likely to be charged. Also, if the volume resistivity exceeds 1.0×10 8 Ω, it will not meet the standard of EN16350. The "volume resistivity" and "surface resistivity" are measured in accordance with EN61340 - 2 - 3:2016 8, which is an EN standard. The measurement sample shall be cut out from the center of the repeating structure of the palm part where conductivity is required.

[0029] As the lower limit of the surface resistivity defined by EN61340 - 2 - 3 in the repeating structure 40, 3.5×10 3 Ω is preferred, and 1.0×10 4 Ω is more preferred. As the upper limit of the surface resistivity, 1.0×10 8 Ω is preferred, and 1.0×10 7 Ω is more preferred. By setting the surface resistivity within the above range, while maintaining the protection performance of the electronic components, the explosion - proof performance can be further enhanced, and the operability of the touch panel can be improved.

[0030] Here, the "volume resistivity" and "surface resistivity" are measured in accordance with EN61340 - 2 - 3:2016 8, which is an EN standard. The measurement sample shall be cut out from the center of the repeating structure 40 of the palm part where conductivity and explosion - proof properties are required.

[0031] (Conductive part) The conductive part 20 is composed of the conductive composite yarn 22 shown in FIG. 4. The conductive composite yarn 22 has a conductive yarn 21 and a core yarn 23, and the core yarn 23 is covered by the conductive yarn 21. By adopting such a configuration that the conductive yarn 21 covers the core yarn 23, the uneven distribution of the conductive yarn 21 can be avoided, and the conductive yarn 21 is likely to contact the operator's hand or the gripped object from any direction. Therefore, it is easy to ensure conductivity.

[0032] The conductive thread 21 is arranged across the front and back surfaces of the main body portion 10a. In other words, the conductive composite thread 22 is knitted to reciprocate between the front and back surfaces of the main body portion 10a, and there is a conductive path that electrically short-circuits the front and back surfaces of the main body portion 10a. In the glove 1, the conductive thread 21 is positioned in the recess 20a, so the conductive thread 21 is located lower than the non-conductive portion 30 (protrusion 30a) that sandwiches it. When the glove 1 is worn and an object is grasped, the deformation of the protrusion 30a causes the recess 20a to also come into contact with the object being grasped, but the contact is not strong. For example, by appropriately setting the height of the protrusions and recesses, a moderate contact resistance can be created between the object being grasped and the object being grasped. In the glove 1, this moderate contact resistance and the conductive path control the volume resistance value in the repeating structure 40 to a certain range.

[0033] Examples of conductive threads 21 include threads containing conductive fibers such as carbon composite organic fibers, metal oxide composite organic fibers, metal compound composite organic fibers, and metal-plated organic fibers. For example, Kuracarbo (registered trademark) manufactured by Kuraray Co., Ltd., Vectron (registered trademark) manufactured by Seiren Co., Ltd., Thunderon (registered trademark) manufactured by Nippon Sanmo Dyeing Co., Ltd., and AGposs (registered trademark) manufactured by Mitsufuji Co., Ltd. can be used.

[0034] The lower limit of the fineness of the yarn made from these fibers is preferably 10 dtex, and more preferably 20 dtex. On the other hand, the upper limit of the fineness of the yarn is preferably 50 dtex, and more preferably 40 dtex. By keeping the fineness of the yarn within the above range, the conductivity of the repeating structure 40 can be ensured, the strength of the glove 1 can be maintained, and the conductivity can be maintained over a long period of time. If the fineness of the yarn is below the lower limit, the durability of the conductive yarn 21 may decrease. Conversely, if the fineness of the yarn exceeds the upper limit, the glove 1 may become stiff after knitting, or the manufacturing cost of the glove 1 may become too high.

[0035] The upper limit of the elongation rate of the conductive thread 21 is preferably 10%, and more preferably 5%. By keeping the elongation rate of the conductive thread 21 below the above upper limit, it is possible to more reliably prevent the conductive thread 21 from sticking out beyond the outermost surface of the glove 1. Therefore, it is possible to prevent the conductive thread 21 from cutting, and thus improve the durability of the glove 1. The lower limit of the elongation rate of the conductive thread 21 may be 0%, which is the theoretical limit, but is preferably 1%.

[0036] The core thread 23 should preferably be a cut-resistant thread. By making the core thread 23 a cut-resistant thread in this way, workers can be protected not only from static electricity but also from cuts. As long as cut resistance performance can be achieved, a composite thread can be made by combining multiple cut-resistant threads and non-cut-resistant threads. Examples of such non-cut-resistant threads include cotton thread for moisture absorption and microfiber.

[0037] As the above-mentioned cut-resistant yarns, in addition to ultra-high molecular weight polyethylene yarn, highly stretchable polyethylene yarn, liquid crystal polyester yarn, aramid yarn, glass fiber yarn, glass fiber composite yarn, and poly(p-phenylenebenzoxazole) (PBO) yarn, yarns made from high-hardness filler-containing organic fibers in which high-hardness fillers such as glass fibers, carbon fibers, silicon nitride, boron nitride, and silicon carbide are dispersed in organic fibers such as polyethylene fibers and polyester fibers can be used. The above-mentioned yarns may be used individually or in combination thereof.

[0038] The core yarn 23 may be in the form of either a filament yarn or a spun yarn. If the core yarn 23 is a filament yarn, it may be straight or crimped. If it is straight, it may be further interlaced to prevent the fibers from unraveling. When an elastic yarn shrinks, the constituent fibers shrink while bending. That is, the yarn occupies a much larger space than the volume of the fibers that make it up. From the viewpoint of suppressing the expansion and contraction of the core yarn 23 and thereby reducing the volume of this space occupied by the core yarn 23, either a filament yarn or a spun yarn can be used, but among these, a filament yarn is preferred from the viewpoint of flexibility, and a straight-shaped filament yarn is more preferred from the viewpoint of strength. The purpose of reducing the volume of the space occupied by the core yarn 23 is to prevent a decrease in conductivity by making the volume of the conductive yarn 21 in the conductive composite yarn 22 relatively smaller, and to prevent the conductive yarn 21 from spreading outwards and becoming more susceptible to wear.

[0039] The upper limit of the elongation rate of the core thread 23 is 3%, with 1.5% being more preferable. By keeping the elongation rate of the core thread 23 below the above upper limit, the stretching of the core thread 23 is suppressed. Therefore, the breakage of the conductive thread 21, which is wound around the core thread 23 and is more elastic than the core thread 23, can be prevented, thereby improving the durability of the glove 1. The lower limit of the elongation rate of the core thread 23 is not particularly limited and may be 0%, which is the theoretical limit.

[0040] It is preferable that the elongation rate of the core thread 23 is lower than that of the conductive thread 21. By making the elongation rate of the core thread 23 lower than that of the conductive thread 21, it is possible to maintain contact between the conductive thread 21 and the object being gripped, while more reliably preventing the conductive thread 21 from extending beyond the outermost surface of the glove 1.

[0041] When using yarn made of organic fibers such as ultra-high molecular weight polyethylene yarn or aramid yarn, or organic fibers containing high hardness fillers, for the core yarn 23, the lower limit of fineness is preferably 50 dtex, and more preferably 100 dtex, from the viewpoint of strength. On the other hand, the upper limit of fineness is preferably 600 dtex, more preferably 500 dtex, and even more preferably 350 dtex, from the viewpoint of the feel of the glove 1.

[0042] When glass fiber yarn is used for the core yarn 23, the lower limit of its fineness is preferably 50 dtex from the viewpoint of strength. On the other hand, the upper limit of the fineness is preferably 250 dtex, and more preferably 200 dtex, from the viewpoint of the feel of the glove 1.

[0043] If the core yarn 23 is a cut-resistant yarn, the lower limit of the fineness of the core yarn 23 is preferably 50 dtex, more preferably 100 dtex, and even more preferably 150 dtex, from the viewpoint of reliably providing cut resistance. On the other hand, the upper limit of the fineness of the core yarn 23 is preferably 600 dtex, more preferably 500 dtex, and even more preferably 350 dtex, from the viewpoint of the feel of the glove 1.

[0044] In the conductive composite yarn 22, the lower limit of the number of turns of conductive yarn 21 per unit length of core yarn 23 is preferably 100 turns / m, and more preferably 150 turns / m. On the other hand, the upper limit of the number of turns is preferably 500 turns / m, and more preferably 450 turns / m. If the number of turns is less than the lower limit, the conductive yarn 21 may become unevenly distributed. Conversely, if the number of turns exceeds the upper limit, the flexibility of the glove 1 may decrease.

[0045] The lower limit of the fineness of the conductive composite yarn 22 is preferably 60 dtex, more preferably 120 dtex, even more preferably 160 dtex, and particularly preferably 200 dtex. On the other hand, the upper limit of the fineness of the conductive composite yarn 22 is preferably 650 dtex, more preferably 600 dtex, even more preferably 500 dtex, and particularly preferably 400 dtex. If the fineness of the conductive composite yarn 22 is below the above lower limit, it may be difficult to achieve both conductivity and strength. Conversely, if the fineness of the conductive composite yarn 22 exceeds the above upper limit, the flexibility of the glove 1 may decrease. When cut-resistant yarn is used for the core yarn 23 of the conductive composite yarn 22, the fineness of the conductive composite yarn 22 is preferably 120 dtex or higher from the viewpoint of ensuring cut resistance.

[0046] The upper limit of the elongation rate of the conductive composite yarn 22 is preferably 3%, and more preferably 1.5%. By keeping the elongation rate of the core yarn 23 below the above upper limit, the volume of space occupied by the conductive composite yarn 22 in the palm area can be easily suppressed. Therefore, wear of the conductive composite yarn 22 is suppressed and contact resistance is controlled, and the volume resistance value in the repeating structure 40 can be easily controlled to stay within a certain range. The lower limit of the elongation rate of the conductive composite yarn 22 is not particularly limited and may be 0%, which is the theoretical limit.

[0047] (Non-conductive part) The non-conductive portion 30 is composed of non-conductive threads 31.

[0048] If the glove body 10 is knitted in a plain knit, the non-conductive yarn 31 should be bulkier than the conductive composite yarn 22, that is, the fineness of the non-conductive yarn 31 should be greater than that of the conductive composite yarn 22, or the non-conductive yarn 31 should contain yarn that has been bulked up. This forms the non-conductive portion 30 as a convex portion 30a. By making the non-conductive portion 30 a convex portion 30a in this way, it will make stronger contact with the worker's hand or the object being held than the conductive yarn 21 located in the recess 20a. With this configuration, the glove 1 can prevent wear of the conductive yarn 21 and ensure conductivity for a long period of time.

[0049] The lower limit of the fineness ratio of the non-conductive yarn 31 constituting the non-conductive portion 30 to the conductive composite yarn 22 is preferably 1.08 times, and more preferably 1.13 times. On the other hand, the upper limit of the fineness ratio is preferably 1.8 times, and more preferably 1.6 times. If the fineness ratio is less than the lower limit, the unevenness of the glove body 10 will be insufficient, and the wear-preventing effect of the conductive yarn 21 may decrease. Conversely, if the fineness ratio exceeds the upper limit, the unevenness will become too deep, and sufficient contact between the conductive yarn 21 and the object being gripped may not be ensured, potentially resulting in insufficient conductivity.

[0050] The lower limit of the elongation rate of the non-conductive thread 31 is preferably 10%, and more preferably 20%. The upper limit of the elongation rate of the non-conductive thread 31 is preferably 400%, and more preferably 300%. By keeping the elongation rate of the non-conductive thread 31 within the above range, wear of the conductive thread 21 is suppressed and contact resistance is controlled, making it easier to control the volume resistance value in the repeating structure 40 within a certain range. If the elongation rate of the non-conductive thread 31 is below the above lower limit, the volume of space occupied by the non-conductive thread 31 in the palm area becomes small, making it difficult to form protrusions, increasing contact between the conductive thread 21 and the object being gripped, making it difficult to control the volume resistance value, and potentially increasing wear of the conductive thread 21, which may reduce durability. Conversely, if the elongation rate of the conductive thread 31 exceeds the upper limit, the volume of the space occupied by the non-conductive thread 31 becomes too large, causing the irregularities of the glove body 10 to become too deep, which may prevent sufficient contact between the conductive thread 21 and the object being gripped, resulting in insufficient conductivity.

[0051] Furthermore, it is preferable that the elongation rate of the non-conductive yarn 31 is greater than that of the conductive composite yarn 22. As a result, the shrinkage of the non-conductive portion 30 woven with the non-conductive yarn 31 is greater than that of the conductive portion 20 woven with the conductive composite yarn 22, and consequently, the non-conductive portion 30 can be formed to be bulkier than the conductive portion 20. This makes it easier to form the convex portion 30a of the non-conductive portion 30.

[0052] Examples of materials for the non-conductive yarn 31 include cotton fibers, polyester fibers, nylon fibers, polyethylene fibers, polypropylene fibers, acrylic fibers, aramid fibers, poly(p-phenylenebenzoxazole) (PBO) fibers, ultra-high molecular weight polyethylene fibers, highly stretchable polyethylene fibers, liquid crystal polyester fibers, glass fibers, polyurethane elastic fibers, and natural rubber fibers. In addition, examples include high-hardness filler-containing organic fibers and composite fibers thereof, in which high-hardness fillers such as glass fibers, carbon fibers, silicon nitride, boron nitride, and silicon carbide are dispersed in organic fibers such as polyethylene fibers and polyester fibers.

[0053] The non-conductive yarn 31 is preferably a filament yarn from the viewpoint of preventing dust generation. Furthermore, the non-conductive yarn 31 is preferably an elastic yarn from the viewpoint of providing a good fit to the glove 1 after knitting.

[0054] If the core thread 23 of the conductive composite thread 22 is a cut-resistant thread, it is preferable that the non-conductive thread 31 is also a cut-resistant thread. By making the non-conductive thread 31 a cut-resistant thread in this way, uniform cut resistance can be provided. In addition, since the protrusions 30a contain cut-resistant threads, the abrasion resistance of the protrusions 30a is improved, and the abrasion resistance of the conductive thread 21 located in the recesses 20a protected by the protrusions 30a is also improved. As a result, the conductivity of the glove 1 can be maintained for a long period of time. As the cut-resistant thread, various cut-resistant threads listed for the core thread 23 can be used.

[0055] The non-conductive yarn 31 may also include a reinforcing yarn in addition to the cut-resistant yarn. The reinforcing yarn helps to secure the volume of the non-conductive portion 30 and facilitates the formation of the protrusions 30a. In particular, by using general-purpose yarns such as polyester yarn, nylon yarn, or cotton yarn for the reinforcing yarn, it is possible to provide cut resistance while reducing the cost of the glove 1.

[0056] The non-conductive yarn 31, the cut-resistant yarn and the reinforcing yarn, may be knitted together, or they may be plated, or they may be prepared as twisted yarn and plain knitted.

[0057] It is preferable to use an elastic yarn as the reinforcing yarn for the non-conductive yarn 31. Examples of the elastic yarn include single-covered yarn (SCY), in which a core yarn made of natural rubber fiber or polyurethane fiber (spandex) is covered with nylon fiber or polyester fiber. By using a single-covered yarn with a spandex core yarn as the reinforcing yarn, the cut-resistant yarn is arranged in a meandering manner due to the contraction force of the spandex. Since this meandering occurs in the thickness direction of the glove 2, the non-conductive portion 30 becomes thicker, improving cut resistance. Furthermore, because the cut-resistant yarn used in the non-conductive yarn 31 and the conductive composite yarn 22 has low elasticity, at least in the conductive portion 20, the stitches open more easily than in the non-conductive portion 30 containing spandex, making it easier to ensure breathability. As a result, the resulting glove 1 is a glove with high breathability relative to its thickness.

[0058] When the superimposed yarn of the non-conductive yarn 31 is SCY covered with spandex, the lower limit of the fineness of the spandex is preferably 10 dtex, and more preferably 20 dtex. On the other hand, the upper limit of the fineness of the spandex is preferably 78 dtex, more preferably 56 dtex, and even more preferably 35 dtex. By setting the fineness of the spandex within the above range, the non-conductive portion 30 can be made bulkier, and the glove 1 can be given a suitable fit. The yarn used for covering the spandex is preferably crimped yarn of crimped nylon or polyester fibers, and the fineness of the crimped yarn is preferably 50 dtex or more and 156 dtex or less. This improves the processability of knitting and makes the non-conductive portion 30 bulkier. In addition, the draft during the manufacture of the SCY is preferably 2.0 or more and 4.5 or less, and the number of turns per unit length of the yarn used for covering is preferably 200 turns / m or more and 700 turns / m or less.

[0059] <Finger compartment and hem> The finger-receiving portion 10b and the hem portion 10c may consist only of conductive portion 20 or only of non-conductive portion 30, and may have a repeating structure 40 similar to the main body portion 10a. It is also possible to have different structures for the finger-receiving portion 10b and the hem portion 10c. For example, if it is intended for a work site where touch panels are used, the finger-receiving portion 10b may be knitted as the conductive portion 20.

[0060] The finger-holding portion 10b and the hem portion 10c can employ the same configuration as the conductive portion 20 and the non-conductive portion 30. Furthermore, elastic yarn made from natural rubber, polyurethane, etc., may be used in the knitting process to provide elasticity. The yarn used for the finger-holding portion 10b and the hem portion 10c is selected appropriately according to the application.

[0061] <How to manufacture gloves> The glove 1 can be manufactured by a manufacturing method comprising a preparation step, a knitting step, and a turning step.

[0062] (Preparation steps) In the above preparation step, conductive composite yarn 22 and non-conductive yarn 31 are prepared.

[0063] Here, we will continue the explanation using the example where a cut-resistant thread is used as the core thread 23 of the conductive composite thread 22, and a cut-resistant thread and a reinforcing thread are used as the non-conductive thread 31. However, this does not mean that the conductive composite thread 22 and the non-conductive thread 31 are limited to the above combination. Other threads mentioned above can also be used.

[0064] (Knitting process) In the knitting process described above, the glove body 10 is knitted on a flat knitting machine using the yarn prepared in the preparation process described above.

[0065] Existing flat knitting machines can be used to knit the glove body 10. Examples of such knitting machines include the Shima Seiki SFG-i flat knitting machine and the SWG computer flat knitting machine.

[0066] The lower limit of the gauge number for the knitting machine is preferably 13, and more preferably 18. On the other hand, the upper limit of the gauge number for the knitting machine is preferably 26.

[0067] The lower limit for the number of courses per unit length of the knitted glove body 10 is preferably 30 courses / inch, and more preferably 40 courses / inch. On the other hand, the upper limit for the number of courses per unit length is preferably 60 courses / inch, and more preferably 55 courses / inch. By setting the number of courses per unit length to be above the lower limit, the spacing between adjacent conductive parts 20 can be narrowed, and the explosion-proof function can be stabilized. Furthermore, by setting the number of courses per unit length to be below the upper limit, the knitting is prevented from becoming too tight, elasticity can be given to the glove body 10, and the glove 1 can fit more easily when bending and stretching the hand.

[0068] For example, when using the SFG-i knitting machine, the yarn supply feeders that can be used to knit the glove body 10 include a main yarn feeder, a supplement yarn feeder, and a two-color switching feeder (color yarn feeder), to which, for example, cut-resistant yarn of non-conductive yarn 31, supplement yarn of non-conductive yarn 31, and conductive composite yarn 22 are supplied. Note that the feeders for each yarn are not limited to the above combinations and can be appropriately selected within the scope that satisfies the requirements of the present invention.

[0069] The non-conductive portion 30 is knitted with non-conductive yarn 31. Here, the cut-resistant yarn and the reinforcing yarn are knitted using plating knitting. That is, the cut-resistant yarn of the non-conductive yarn 31 is placed on the right side, and the reinforcing yarn of the non-conductive yarn 31 is placed on the wrong side. Since the knitted glove 2 is used inside out, the reinforcing yarn is placed on the right side of the glove 1. In this case, if spandex SCY is used as the reinforcing yarn, the knitted fabric knitted with SCY is compressed by the reinforcing yarn, increasing the density of the cut-resistant yarn and increasing the thickness of the non-conductive portion 30, thereby improving cut resistance.

[0070] The conductive portion 20 is knitted using conductive composite yarn 22.

[0071] Furthermore, by switching between the non-conductive yarn 31 (cut-resistant yarn and reinforcing yarn) and the conductive composite yarn 22 during the knitting process, the non-conductive portion 30 and the conductive portion 20 can be formed alternately. Specifically, while the non-conductive portion 30 is knitted using the main yarn feeder and the reinforcing yarn feeder, this can be achieved by stopping both feeders and using a two-color switching feeder to knit the conductive portion 20.

[0072] (Turning process) In the reversal process described above, the glove body 10 after the knitting process is turned inside out. This allows the desired glove 1 to be obtained.

[0073] <Advantages> In the glove 1, the conductive portion 20 is located in a recessed area 20a relative to the non-conductive portion 30 which is positioned on the convex portion 30a and sandwiches the conductive portion 20. Therefore, the conductive portion 20 does not come into strong contact with the object being gripped. Consequently, the glove 1 can prevent wear of the conductive thread 21. Furthermore, since the conductive thread 21 is arranged across the front and back surfaces of the main body portion 10a, it is easy to keep the volume resistivity indicating conductivity between the front and back surfaces of the glove 1 within a certain range.

[0074] Furthermore, in the glove 1, the conductive thread 21 is wound around a core thread 23 with a low elongation rate, which prevents the conductive thread 21 from extending beyond the outermost surface of the glove 1. This makes it possible to more reliably prevent the conductive portion 20 from making strong contact with the object being gripped, thereby enhancing the wear-preventing effect of the conductive thread 21. Moreover, the controllability of the volume resistivity is improved in the glove 1, in conjunction with the fact that the conductive portion 20 does not directly make strong contact with the object being gripped.

[0075] [Second Embodiment] The glove 2 shown in Figures 5 and 6 comprises a glove body 10 made of knitted fiber yarn and a conductive coating 50, the glove body 10 having a main body portion 10a, five bottomed cylindrical finger sections 10b and a cylindrical hem portion 10c, the main body portion 10a is formed in a bag shape to cover the wearer's palm and back of hand, the five finger sections 10b extend from the main body portion 10a to cover the wearer's first to fifth fingers respectively, and the hem portion 10c extends in the opposite direction from the five finger sections 10b, the main body portion 10a is the palm portion The main body 10a has a repeating structure 40 consisting of a strip-shaped conductive portion 20 containing conductive threads 21 and a strip-shaped non-conductive portion 30 not containing conductive threads 21, the main body 10a has an uneven surface with the conductive portion 20 being a recess 20a and the non-conductive portion 30 being a convex portion 30a, the conductive portion 20 is composed of a conductive composite thread 22 having conductive threads 21 and a core thread 23 covered by the conductive threads 21, the conductive threads 21 are arranged across the front and back surfaces of the main body 10a, and the elongation rate of the core thread 23 is 3% or less.

[0076] The glove 2 is the same as the glove 1 of the first embodiment, except that it is equipped with a conductive coating 50, and therefore the same number is used and its description is omitted. In the glove 2, a repeating structure 40 is provided in the main body portion 10a, the finger receiving portion 10b, and the hem portion 10c.

[0077] <Conductive coating> The conductive coating 50 covers part or all of the repeating structure 40 of the main body 10a and is made of resin or rubber. In the glove 2 shown in Figures 5 and 6, the entire palm side of the main body 10a and the finger housing 10b, and a part of the back of the hand side of the finger housing 10b are covered with the conductive coating 50.

[0078] If the conductive coating 50 is made of resin, known resins can be used as the main component resin, such as polyurethane, polyvinyl chloride, and mixtures thereof. The "main component" refers to the component with the highest content, for example, a component with a content of 50% by mass or more.

[0079] When the conductive coating 50 is made of rubber, known rubbers can be used as the main component, such as natural rubber, acrylonitrile butadiene rubber, chloroprene rubber, acrylic rubber, isoprene rubber, styrene-isoprene block copolymer, silicone rubber, and modified versions thereof, as well as mixtures thereof. Among these, natural rubber, acrylonitrile butadiene rubber (including modified versions), and chloroprene rubber are preferred from the viewpoint of versatility, adhesion to the fibers of the glove body 10, flexibility, and abrasion resistance.

[0080] Furthermore, it is preferable that a conductive filler is added to the conductive coating 50 to impart conductivity. Known conductive fillers can be used, such as Dentol WK-500B manufactured by Otsuka Chemical Co., Ltd. or Ketjenblack EC300J manufactured by Lion Specialty Chemicals Co., Ltd.

[0081] The conductive coating 50 may contain various compounding agents. Examples of these compounding agents include stabilizers such as emulsifiers and surfactants, vulcanizing agents such as sulfur, vulcanization accelerators such as zinc oxide and zinc diethyldithiocarbamate, crosslinking agents such as diglycidyl ether, polyglycidyl ether, polycarbodiimide, blocked isocyanate, oxazoline group-containing polymer, and silane coupling agents, pH adjusters such as potassium hydroxide and ammonia, thickeners such as polyacrylic acid and carboxymethylcellulose, pigments, antioxidants, and the like.

[0082] The conductive coating 50 can be configured as a non-foamed coating layer, a foamed coating layer, or a laminate thereof.

[0083] The conductive coating 50 may penetrate a portion of the glove body 10 in the thickness direction, but it is located at least outside the glove body 10. The thickness of the conductive coating 50 located outside the glove body 10 is thought to greatly affect the volume resistivity of the glove 2, and its thickness is preferably 0.01 mm or more and 1.0 mm or less. By keeping the thickness within the above range, the durability of the conductive coating 50 and the flexibility of the glove 2 can be easily ensured.

[0084] The lower limit of the volume resistivity value specified in EN61340-2-3 for the repeating structure 40 in which the conductive coating 50 of the glove 2 is laminated is 3.5 × 10 3 Ω is preferred, 1.0 × 10 4 Ω is more preferable. On the other hand, the upper limit of the above volume resistivity is 1.0 × 10 8 Ω is preferred, 1.0 × 10 7 Ω is more preferable. If the above volume resistivity is below the above lower limit, there is a risk of an electrical short circuit failure occurring when the object being gripped is held. Conversely, if the above volume resistivity exceeds the above upper limit, there is a risk that the worker will become more susceptible to static electricity.

[0085] The lower limit of the surface resistance value specified in EN61340-2-3 for the repeating structure 40 on which the conductive coating 50 of the glove 2 is laminated is 3.5 × 10 3 Ω is preferred, 1.0 × 10 4 Ω is more preferable. The upper limit of the above surface resistance value is 1.0 × 10⁻⁶. 8 Ω is preferred, 1.0 × 10 7 Ω is more preferable. By keeping the surface resistance value within the above range, it is possible to maintain the protective performance of electronic components, further enhance explosion-proof performance, and improve the operability of the touch panel.

[0086] On the surface of the main body 10a, in the area covered by the conductive coating 50, yarn with a spandex core covered with nylon fibers is arranged by plating knit. By arranging yarn with a spandex core covered with nylon fibers in the area covered by the conductive coating 50 on the surface of the main body 10a in this way, adhesion with the conductive coating 50 is improved, and the controllability of the volume resistivity and the durability of the glove 2 can be enhanced. In addition, the shrinkage force of the spandex makes it easier for the knit to open in the conductive part 20, and the conductive coating 50 can easily penetrate to the inner surface of the glove. As a result, the conductive threads 21 that make up the conductive part 20 are more easily covered by the conductive coating 50, and the wear prevention effect of the conductive threads 21 can be enhanced.

[0087] <How to manufacture gloves> The glove 2 can be manufactured by a manufacturing method comprising a preparation step, a knitting step, a turning step, a compound preparation step, and a lamination step.

[0088] (Preparation process, knitting process, turning process) In the preparation step described above, conductive composite yarn 22 and non-conductive yarn 31 are prepared. In the knitting step described above, the glove body 10 is knitted on a flat knitting machine using the yarns prepared in the preparation step described above. In the turning step described above, the glove body 10 after the knitting step is turned inside out. Each of these steps can be carried out in the same manner as the manufacturing method of the glove 1 of the first embodiment, so a detailed explanation is omitted.

[0089] (Compound preparation process) In the compound preparation step described above, a coating raw material compound for forming the conductive coating 50 is prepared. The compound preparation step can be performed before the lamination step described above, regardless of the order of other steps. For example, it may be performed simultaneously with the preparation step described above.

[0090] The above coating material compound is prepared as latex, a resin solution, or a resin sol, and a conductive filler is added, for example, to impart conductivity.

[0091] When the main component of the coating material compound is latex, examples of latex include natural rubber, acrylonitrile butadiene rubber, chloroprene rubber, acrylic rubber, isoprene rubber, styrene-isoprene block copolymer, silicone rubber, and acrylic rubber. Among these, natural rubber, acrylonitrile butadiene rubber, and chloroprene rubber latex are preferred from the viewpoint of versatility, adhesion to the fibers of the glove body 10, flexibility, and abrasion resistance.

[0092] Furthermore, when the main component is resin, examples of resin solutions include polyurethane solutions and silicone rubber solutions, and examples of resin sols include polyvinyl chloride sols.

[0093] The above-mentioned coating raw material compound may contain the various compounding agents described above in addition to the rubber or resin composition for forming the conductive coating 50. Furthermore, if the conductive coating 50 is to be porous, in addition to chemical foaming agents and thermally expandable microcapsules, foaming agents and foam stabilizers may be added to mechanically foam the raw materials.

[0094] (Lamination process) In the lamination process described above, a conductive coating 50 is laminated onto a desired location on the glove body 10.

[0095] The conductive coating 50 can be formed by applying a coating raw material compound to the glove body 10 using one of the following four methods after the glove body 10 has been placed over a hand mold: (1) reacting a highly heat-solidifying latex compound with the heated glove body 10; (2) immersing the glove body 10 in a coagulant such as a calcium nitrate methanol solution and then reacting it with a latex raw material compound; (3) immersing the glove body 10 in a polyurethane dimethylformamide solution and then precipitating the polyurethane in water; or (4) applying an oil-repellent treatment to the glove body 10 and then immersing it in a polyvinyl chloride sol. After applying the coating raw material compound to the glove body 10, the conductive coating 50 can be formed by heating. In this case, it is preferable that the conductive coating 50 penetrates to a range of 10% to 70% of the average thickness of the glove body 10 in the portion that is in direct contact with the glove body 10, from the viewpoint of preventing peeling, maintaining flexibility, and imparting conductivity.

[0096] After laminating the conductive coating 50, the gloves 2 can be obtained by further heat curing the conductive coating 50 to increase its strength through vulcanization or crosslinking, and then removing it from the hand mold. Alternatively, a water washing step may be provided at some point between laminating the conductive coating 50 and removing the heat-cured gloves 2 to remove excess coagulants, emulsifiers, vulcanization accelerators, etc.

[0097] Furthermore, the surface of the conductive coating 50 may be subjected to a known anti-slip treatment. Methods for imparting anti-slip properties include creating irregularities on the outer surface of the conductive coating 50 using particles, forming the conductive coating 50 as a foamed layer, providing a conductive foamed layer on the outer surface of the conductive coating 50, forming a concave shape by applying hygroscopic particles to the conductive coating 50 before heating during its formation and removing them after heating, creating an irregular pattern by swelling the conductive coating 50 with a solvent during its formation, and creating irregularities by press working.

[0098] <Advantages> In the glove 2, the conductive portion 20 is located in a recessed area 20a relative to the non-conductive portion 30 which is positioned on the convex portion 30a and sandwiches the conductive portion 20. Therefore, the conductive portion 20 does not come into strong contact with the object being gripped. Consequently, the glove 2 can prevent wear of the conductive thread 21. Furthermore, since the conductive thread 21 is arranged across the front and back surfaces of the main body portion 10a, it is easy to keep the volume resistivity indicating conductivity between the front and back surfaces of the glove 2 within a certain range.

[0099] Since the glove 2 is equipped with a conductive coating 50, when it is subjected to abrasion from the surface, the main body 10a will be worn down first from the protrusions 30a, so the recesses 20a will not be worn down until the very end. Therefore, the abrasion prevention effect of the conductive thread 21 is enhanced.

[0100] Furthermore, by covering part or all of the repeating structure 40 of the main body 10a with the conductive coating 50, anti-slip performance can be provided and the durability of the glove 2 can be improved.

[0101] When the conductive coating 50 covers a portion of the repeating structure 40 of the main body 10a, the conductive thread 21 is wound around the core thread 23 with a low elongation rate in the uncovered repeating structure 40, thereby preventing the conductive thread 21 from extending beyond the outermost surface of the glove 1. This more reliably prevents the conductive portion 20 from making strong contact with the object being gripped, thereby enhancing the wear prevention effect of the conductive thread 21. Furthermore, combined with the fact that the conductive portion 20 does not directly make strong contact with the object being gripped, the controllability of the volume resistivity can be improved.

[0102] [Other embodiments] The present invention is not limited to the embodiments described above, and can be implemented in various modified and improved forms in addition to those described above.

[0103] In the above embodiment, a method for manufacturing gloves was described in which only conductive composite yarn is used in the conductive part. However, for example, a single-covered yarn (SCY) covered with spandex may be used as a supplementary yarn and knitted together. [Examples]

[0104] The present invention will be described in more detail below with reference to examples, but the invention is not limited to the following examples.

[0105] <Preparation Steps> I prepared the following threads.

[0106] (Conductive composite yarn) As a conductive composite yarn, a conductive composite yarn (with an elongation rate of 0%) was prepared by using a 280dtex cut-resistant yarn (DSM 3GX20-280, 0% elongation) as the core yarn and covering it with a 22dtex conductive yarn (Kurakarbo, Kuraray Co., Ltd., 2.0% elongation) at a rate of 200 turns / m.

[0107] (Non-conductive thread) As non-conductive yarn, a single yarn of 280 dtex cut-resistant yarn (DSM 3GX20-280) and its reinforcing yarn were prepared. The reinforcing yarn was made by using 22 dtex spandex as the core yarn and covering it with a 77 dtex woolly nylon single yarn at a draft of 3.0 and 400 turns / m, resulting in a single-covered yarn (elongation rate 220%). The elongation rate of the non-conductive yarn (the single yarn and the reinforcing yarn combined) was 219%.

[0108] <Formation> Using an 18G flat knitting machine (Shima Seiki SFG-i), the non-conductive cut-resistant yarn was supplied to the main yarn feeder, the non-conductive yarn supplement was supplied to the supplement feeder, and the conductive composite yarn was supplied to the two-color switching feeder to knit the glove body.

[0109] As shown in Figure 7, in the glove body 10 of the glove 2 in the embodiment, the main body 10a, finger storage portion 10b, and hem portion 10c were knitted using a repeating structure 40. Specifically, in the main body 10a, the two-color switching feeder was moved once, and then the main thread feeder and the supplementary thread feeder were moved three times in a repeating operation. In the hem portion 10c, in addition to the above repeating operation, elastic yarn (a yarn made of 330 dtex spandex as a core yarn covered with 83 dtex polyester yarn) was knitted in an inlay at a ratio of one course every three courses in order to further improve the fit of the hem portion 10c. The number of courses per unit length of the palm portion was set to 42 courses / inch.

[0110] The glove body 10, after being assembled, was turned inside out to obtain the desired glove.

[0111] The resistance values ​​of the palm and back of the hand of this glove 3 were measured in accordance with EN61340-2-3, and the surface resistance value was 2.1 × 10⁻⁶. 4 Ω and 3.9 × 10 4 It is Ω, and the volume resistivity is 1.8 × 10⁻⁶. 4 Ω and 2.5 × 10 4 The value was Ω. Furthermore, the cut-off level, measured according to the EN388 standard, was C.

[0112] <Resin coating> A conductive resin coating was laminated onto glove 3, and gloves with the configuration shown in Figures 5 and 6 were manufactured using the following procedure.

[0113] First, a polyurethane resin solution (Crisbon 8366HV, manufactured by DIC Corporation) was prepared by adding dimethylformamide (DMF) to adjust the resin component to 10% by mass. Then, a coating material compound was prepared by adding 35 parts by mass of conductive filler (Dentol WK-500B, manufactured by Otsuka Chemical Co., Ltd.) to 100 parts by mass of the resin component.

[0114] The aforementioned glove 3 was placed over the hand mold, the palm portion of the hand mold was immersed in the above coating material compound, and after being removed, it was placed in water for 1 hour. Furthermore, after removing the hand mold, it was heated in a 120°C oven for 30 minutes. After the hand mold cooled, only the hand mold was removed from the glove to obtain the desired glove.

[0115] The resistance values ​​of the palm and back of the hand of this glove were measured in accordance with EN61340-2-3, and the surface resistance value was 3.1 × 10⁻⁶. 4 Ω and 5.8 × 10 4 It is Ω, and the volume resistivity is 4.5 × 10⁻⁶. 4 Ω and 4.3 × 10 4 The value was Ω. Furthermore, the abrasion resistance level of the palm area, measured according to the EN388 standard, was 4.

[0116] <Rubber coating> A rubber conductive coating was laminated onto glove 3, and gloves with the configuration shown in Figures 5 and 6 were manufactured using the following procedure.

[0117] To NBR latex (Lx550, manufactured by Nippon Zeon), 0.4 parts by mass of methylcellulose, 3.8 parts by mass of EC300J (a dispersion of Ketjenblack, manufactured by Lion Specialty Chemicals), 2 parts by mass of zinc oxide, and 0.5 parts by mass of calcium hydroxide were added as active ingredients to 100 parts by mass of rubber components, and the mixture was thoroughly dissolved to prepare a coating material compound.

[0118] The aforementioned glove 3 was placed over the hand mold, the palm portion of the hand mold was immersed in a methanol solution of 1% calcium nitrate by mass, then immersed in the above coating material compound, and after being removed, it was heated in a 70°C oven for 30 minutes and then in a 120°C oven for 40 minutes. After the hand mold cooled, only the hand mold was removed from the glove to obtain the desired glove.

[0119] The resistance values ​​of the palm and back of the hand of this glove were measured in accordance with EN61340-2-3, and the surface resistance value was 9.4 × 10⁻⁶. 5 Ω and 8.1 × 10 4 It is Ω, and the volume resistivity is 7.2 × 10⁻⁶. 6 Ω and 9.1 × 10 4 The value was Ω. Furthermore, the abrasion resistance level of the palm area, measured according to the EN388 standard, was 4. [Industrial applicability]

[0120] As described above, the gloves of the present invention have a volume resistivity that easily falls within a certain range and are highly durable. [Explanation of symbols]

[0121] 1, 2, 3 Gloves 10 Glove body 10a Main body 10b Finger compartment 10c hem 20 Conductive parts 20a recess 21 Conductive thread 22 Conductive Composite Yarn 23 Core yarn 30 Non-conductive parts 30a Convex part 31 Non-conductive yarn 40 Repeating Structures 50 Conductive coating

Claims

1. The glove body is made of knitted fiber threads, The glove body described above has a main body, a bottomed cylindrical section for storing five fingers, and a cylindrical hem. The glove is formed in a pouch-like shape so as to cover the wearer's palm and the back of their hand, the five finger compartments extend from the main body so as to cover the wearer's first to fifth fingers, and the hem extends in the opposite direction from the five finger compartments. The main body has a repeating structure in at least a part of the palm portion, consisting of a band-shaped conductive portion containing conductive threads and a band-shaped non-conductive portion not containing conductive threads. The main body has an uneven surface on which the conductive portion is recessed and the non-conductive portion is convex. The conductive portion is composed of a conductive composite yarn having a conductive thread and a core thread covered by the conductive thread. The conductive thread is arranged across the front and back surfaces of the main body. Gloves in which the elongation rate of the core thread is 3% or less.

2. The glove according to claim 1, wherein the elongation rate of the core thread is lower than the elongation rate of the conductive thread.

3. The glove according to claim 1 or claim 2, wherein the ratio of the fineness of the non-conductive yarn constituting the non-conductive portion to the conductive composite yarn is 1.08 times or more.

4. The glove according to claim 1 or claim 2, wherein the elongation rate of the non-conductive yarn constituting the non-conductive portion is greater than the elongation rate of the conductive composite yarn.

5. The glove according to claim 1 or claim 2, wherein the core thread is cut-resistant thread.

6. The non-conductive yarn constituting the non-conductive portion is composed of cut-resistant yarn and reinforcing yarn, The glove according to claim 5, wherein the reinforcing yarn is a single-covered yarn in which a spandex core yarn is covered.

7. The glove according to claim 1 or claim 2, comprising a conductive coating made of resin or rubber that covers part or all of the repeating structure of the main body.

8. The glove according to claim 7, wherein a yarn in which a spandex core yarn is covered with nylon fibers is arranged in a plating knit in the area of ​​the surface of the main body covered with the conductive coating.

Citation Information

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