Patent Application
20170099890
The present invention relates to a glove base and glove which, when attached to a hand, quickly absorb moisture such as sweat occurring on the surface of the hand to make moisture hardly left on the surface of the hand.
Various gloves are used in various scenes such as manufacturing work at factories, farm work, gardening, light work, construction work, and cooking work. A glove protects a hand of a worker and makes work efficient. Here, there are gloves of a type obtained by weaving fiber such as a work glove and gloves of a type using rubber or resin for the purpose of airtightness and waterproofness.
The latter glove configured of rubber or resin is used when airtightness and waterproofness are at the top of priorities. Such a glove configured only of a layer made of rubber, resin, or the like has high airtightness and waterproofness, but can hardly absorb moisture occurring on the surface of the hand. Thus, a user having the glove attached thereto feels uncomfortable due to steamy feeling or the like. Such a glove configured only of a layer made of rubber, resin, or the like is used not to address attachment feeling, uncomfortable feeling, and so forth, but is rather used when airtightness and waterproofness are required to be at the top of priorities. For example, this glove is used for working in food factories, cooking work, fishery processing factories, and so forth.
On the other hand, a glove configured of a base manufactured as a fiber-made. This base manufactured as a fiber-made and used as it is as a glove is grasped as a glove such as a so-called work glove. Such a glove configured only of a fiber-made base is used when airtightness and waterproofness are not required to be at the top of priorities. As a matter of course, since the glove is configured only of a fiber-made base, in addition to good attachment feeling, breathability is high, and steamy feeling or the like in working when attached can be reduced.
Also, there is also a glove with coating provided to at least part of a surface of a base manufactured as a fiber-made. Since the base is fiber-made, attachment feeling when attached is good. In the case of the glove configured only of a layer made of rubber or resin, this rubber or resin layer is directly in contact with the surface of the hand, and therefore attachment feeling is not good. By contrast, in the glove with coating provided to the fiber-made base, the fiber-made base is in contact with the surface of the hand when used, and therefore attachment feeling is good.
In this manner, to enhance operability with good attachment feeling, a glove with coating provided to at least part of the surface of the fiber-made base is also used. The coating to be provided to the surface may have a function and structure to enhance gripping ability, or may have a function and structure to enhance waterproofness and airtightness. To achieve improvement of gripping ability and improvement of airtightness and waterproofness, and other functions, which cannot be achieved only by this fiber-made base, coating is provided to at least part of the surface of the fiber-made base.
In this manner, the glove configured only of the fiber-made base and in consideration of attachment feeling is used when attachment feeling and use feeling are more prioritized. In particular, when gripping ability, airtightness, waterproofness, and so forth more than achievable by the fiber-made base are not required, the glove only with the fiber-made base is used.
Alternatively, when gripping ability, airtightness, waterproofness, and so forth difficult to be achieved only by the fiber-made base are desired to be achieved while attachment feeling and use feeling are kept, the glove with coating provided to at least part of the surface of the fiber-made base is used.
In this manner, among gloves of various structures, a glove with a fiber-made base as a basis is also used. Also in the glove with a fiber-made base as a basis, when attached to a hand, the glove covers the surface of the hand. Thus, even the glove with a fiber-made base as a basis has a problem that moisture such as sweat on the surface of the hand causes uncomfortable feeling (steamy feeling) at the time of attachment.
Several technologies for reducing uncomfortable feeling at the time of attachment of this fiber-made base as a basis of a glove have been suggested (for example, refer to PTL 1, PTL 2, and PTL 3).
PTL 1: Japanese National Publication of International Patent Application No. WO2004-041011
PTL 2: Japanese Patent Application Laid-Open No. 2001-279507
PTL 3: Japanese Utility Model Registration No. 3038460
In PTL 1, a glove is made with a line of thread appearing on a front surface of a glove and a line of thread appearing on a rear surface substantially different and a ratio of a water absorption and diffusion area of the front surface with respect to the rear surface being 1.3 or larger, thereby allowing sweat from the skin to be moved from the inside of the glove to the outside and transpired into the atmosphere and allowing steamy feeling of a glove-attached user to be significantly reduced. As a result, a glove excellent in attachment comfortability even if the glove is attached over a long period of time can be obtained. For this, in the fiber-made glove is disclosed, either one line of thread between the line of thread appearing on the front surface of the glove and the line of thread appearing on the rear surface is preferably set to have a fiber space ratio of 88 to 98% and also either one is preferably configured mainly of filament crimped yarn and the other is preferably configured mainly of spun yarn.
In the glove of the PTL 1, in the fiber-made glove, the water absorption and diffusion area of the front surface (outside) of the fiber-made glove is set to be 1.3 or larger of the water absorption and diffusion area of the rear surface (inside) of the fiber-made glove. The glove disclosed is capable of, with this water absorption and diffusion area on the outside being high, reducing steamy feeling by moving sweat on the hand from the inside to the outside of the glove.
However, uncomfortable feeling such as steamy feeling when the glove is attached largely depends on moisture such as sweat on the surface of the hand left on the surface of the hand. The glove of PTL 1 is configured to have a low water absorption and diffusion area of the inside in contact with the surface of the hand compared with the outside. Thus, the glove of PTL 1 has a problem in which inner water-absorbing properties are relatively low and moisture on the surface of the hand cannot be sufficiently absorbed. This is because the outer water absorption and diffusion area is higher than the inner one and therefore, of water-absorbing ability of the entire glove, water-absorbing properties of the inside in contact with the surface of the hand are relatively inferior.
Also, the inside in contact with the surface of the hand also has relatively low diffusibility of the absorbed moisture compared with the outside of the glove. Thus, the moisture absorbed by the inside of the glove hardly diffuses and tends to remain at a water-absorbed region. As a result, uncomfortable feeling occurs in which sweat absorbed at a region where sweat tends to occur or the like is continuously left at the same site. In this manner, with water-absorbing properties and diffusibility of the inside of the glove being relatively lower than those of the outside, a mechanism of sufficiently absorbing moisture on the surface of the hand and also releasing to the outside tends not to work. As a result of these, the glove of PTL 1 has a problem that reduction in uncomfortable feeling such as steamy feeling is insufficient.
PTL 2 discloses a glove in which a water-repellent fiber string 2 and a water-absorbing fiber string 3 are subjected to plated stitch by knitting means, with the water-repellent fiber string 2 exposed to an entire outer surface 4 and the water-absorbing fiber string 3 exposed to an entire inner surface 5.
An object of PTL 2 is to absorb moisture on a surface of a hand by exposing the water-absorbing fiber to the inside in the fiber-made glove.
However, since the surface of the glove is configured of the water-repellent fiber, the inside of the glove has a problem that moisture absorbed from the surface of the hand remains inside the glove. If the absorbed moisture remains inside the glove, there is a problem that steamy feeling occurs to the glove as a whole and uncomfortable feeling at the time of attachment cannot be reduced.
In PTL 3, a glove 10 has a two-layer structure with an inner layer 12 of knitted cloth of polypropylene and an outer layer 14 of knitted cloth of silk. On the inside in contact with the skin, the inner layer 12 of non-water-absorbing fiber (polypropylene) is provided, and the outer layer 14 of water-absorbing fiber (silk) is provided on the outside thereof, thereby forming the two-layer structure. In this glove 10, while polypropylene of the inner layer 12 does not contain or retain moisture, silk of the outer layer 14 absorbs moisture derived from sweat and outside air. However, since the outer layer 14 and the skin does not directly make contact with each other, the outer layer 14 does not absorb moisture too much to dry the skin too much. Therefore, in the glove disclosed, if this glove 10 is used, the skin is not dried too much to invite rough skin.
In PTL 3, contrary to PTL 2, non-water-absorbing fiber is inside a glove in contact with a surface of a hand, and water-absorbing fiber is outside the glove. As a result, even if outside air is dry, the glove can absorb moisture in the air to enhance humidity of the entire glove, which is an object thereof
However, naturally, with low water-absorbing properties inside the glove, moisture on the surface of the hand cannot be absorbed. As a result, there is a problem that steamy feeling of the hand at the time of attachment is increased and uncomfortable feeling cannot be reduced.
In this manner, the glove with a fiber-made base as a basis in the conventional technologies has a problem uncomfortable feeling such as steamy feeling by moisture on the surface of the hand cannot be sufficiently reduced. For example, there is a problem that moisture is left in the glove as a whole even if the inside of the glove absorbs moisture on the surface of the hand and steamy feeling cannot be sufficiently reduced. Alternatively, there is a problem that moisture on the surface of the hand cannot be sufficiently absorbed.
Also, when coating is provided to the surface of the fiber-made glove of the conventional technology disclosed in PTLs 1 to 3, there is a problem that steamy feeling is further left.
In view of these problems, an object of the present invention is to provide a glove base and glove which enhance water-absorbing properties for moisture on a surface of a hand and easily release moisture to the outside from the entire glove even if the glove is configured only of a fiber-made base or even if coating is provided to a surface of the glove.
In view of the above problems, a glove base of the present invention is a glove base made of fiber and having a hand shape, wherein
water-absorbing properties of a first fiber exposed mainly to inside of the glove base are higher than water-absorbing properties of a second fiber exposed mainly to outside of the glove base,
the first fiber absorbs and moves moisture on a surface of a hand on the inside to the second fiber, and
the second fiber moves the moisture moved from the first fiber mainly in a surface direction.
In the glove base of the present invention, water-absorbing properties of the inside in contact with the surface of the hand are relatively higher than those of the outside. As a result, it is possible to reliably absorb moisture on the surface of the hand early at the time of attachment. With this absorption, moisture less tends to be left on the surface of the hand, and uncomfortable feeling can be reduced.
Also, in the glove base of the present invention, since the water-absorbing properties of the inside are higher than the water-absorbing properties of the outside, moisture movement to a flat surface direction is more easily generated than that to a perpendicular direction. With this moisture movement to the flat surface direction, moisture in the entire glove base spreads, and uncomfortable feeling can be reduced more. In addition, during moisture movement in the flat surface direction, moisture can be released from the surface of the glove base to outside air. Together with this release, the glove base can reduce uncomfortable feeling such as steamy feeling.
Furthermore, with this moisture movement and diffusion in the flat surface direction, even if the glove has coating provided to at least part of the surface of the glove base, moisture moves to a break of the coating such as the wrist. As a result, even if the glove is covered by coating, moisture absorbed by the glove base moves in the flat surface direction to be released to the outside from the break of the coating. With this release, the glove base of the present invention can reduce uncomfortable feeling such as steamy feeling even if coating is provided.
A glove base according to a first aspect of the present invention is a glove base made of fiber and having a hand shape, wherein water-absorbing properties of a first fiber exposed mainly to inside of the glove base are higher than water-absorbing properties of a second fiber exposed mainly to outside of the glove base, the first fiber absorbs and moves moisture on a surface of a hand on the inside to the second fiber, and the second fiber moves the moisture moved from the first fiber mainly in a surface direction.
With this structure, the glove base can absorb moisture on the surface of the hand early and can diffuse and release the absorbed moisture. With this combination of the mechanisms of the first fiber and the second fiber, a state of reduced moisture on the surface of the hand can be kept, and steamy feeling can be reduced.
In the glove base according to a second aspect of the present invention, in addition to the first aspect, the water-absorbing properties of the first fiber is 2.0 to 37.5 with respect to the water-absorbing properties of the second fiber.
With this structure, the first fiber exposed mainly to the inside of the glove base can efficiently absorb moisture on the surface of the hand with relatively high water-absorbing properties. As a result, the state without moisture on the surface of the hand can be easily kept.
In the glove base according to a third aspect of the present invention, in addition to the first or second aspect, the water-absorbing properties include an amount of water absorption per unit area or unit volume.
With this structure, the water-absorbing properties of the first fiber are high.
In the glove base according to a fourth aspect of the present invention, in addition to any of the first to third aspects, on the inside, the first fiber moves the moisture absorbed from the surface of the hand mainly in a substantially perpendicular direction for movement to the second fiber.
With this structure, the first fiber can efficiently absorb moisture on the surface of the hand and can make moisture hardly left on the surface of the hand.
In the glove base according to a fifth aspect of the present invention, in addition to any of the first to fourth aspects, on the outside, the second fiber moves the moisture moved from the first fiber to an end part of the glove base.
With this structure, even if coating is provided, the second fiber can discharge moisture to the outside via the end part.
In the glove base according to a sixth aspect of the present invention, in addition to the fifth aspect, the end part is an end part of a wrist portion of the glove base.
With this structure, moisture can be released to the outside from the wrist portion that is less prone to be provided with coating.
In the glove base according to a seventh aspect of the present invention, in addition to any of the first to sixth aspects, when coating is provided to at least part of a front surface of the glove base, the second fiber can move the moisture moved from the first fiber to a portion not provided with the coating to release the moisture to outside air.
With this structure, with this combination of the mechanisms of the first fiber and the second fiber, moisture on the surface of the hand can be efficiently absorbed and then released to the outside. As a result, steamy feeling on the hand can be reduced.
In the glove base according to an eighth aspect of the present invention, in addition to any of the first to seventh aspects, moisture mobility of the first fiber is higher in the substantially perpendicular direction than in the surface direction, and moisture mobility of the second fiber is higher in the surface direction than in the substantially perpendicular direction.
With this structure, the first fiber can quickly absorb moisture on the surface of the hand. As a result, the state in which moisture is hardly left on the surface of the hand can be kept.
In the glove base according to a ninth aspect of the present invention, in addition to any of the first to eighth aspects, the first fiber includes at least one of cotton, hemp, silk, wool, rayon, cupra, and nylon with high moisture absorbing/releasing properties.
With this structure, the first fiber can achieve water-absorbing properties higher than those of the second fiber.
In the glove base according to a tenth aspect of the present invention, in addition to any of the first to ninth aspects, the second fiber includes at least one of normal nylon, polyester, vinylon, vinylidene, polypropylene, and polyethylene.
With this structure, the second fiber has water-absorbing properties lower than those of the first fiber. With this relatively low water-absorbing properties, diffusibility of the second fiber can be made higher than that of the first fiber.
In the glove base according to an eleventh aspect of the present invention, in addition to the tenth aspect, moisture absorbing/releasing properties of the nylon with high moisture absorbing/releasing properties are twice as high as moisture absorbing/releasing properties of the normal nylon or higher.
With this structure, the first fiber can achieve water-absorbing properties higher than those of the second fiber.
In the glove base according to a twelfth aspect of the present invention, in addition to any of the first to eleventh aspects, by plating stitch, the first fiber is exposed to the inside and the second fiber is exposed to the outside.
With this structure, the fibers inside and outside the glove base can be made in a desired state.
In the following, embodiments of the present invention are described.
As in PTLs 1 to 3 in the description of the conventional technologies, efforts have been made toward reduction in steamy feeling due to moisture such as sweat on the surface of the hand occurring at the time of attachment. For example, as in PTL 1, the technology of increasing the water absorption and diffusion area outside a fiber-made glove more than that inside has been suggested. Alternatively, as in PTL 2, the technology has been suggested in which water-absorbing fiber is inside of a fiber-made glove and water-repellent fiber is outside thereof.
In both of PTLs 1 and 2, by changing the characteristics of the fibers inside and outside the fiber-made glove, uncomfortable feeling such as steamy feeling at the time of attachment is assumed to be reduced. However, from various studies, the inventors have analyzed to conclude that the following requirements are necessary for reduction in steamy feeling.
(1: High Absorbability of Moisture on Surface of Hand)
An object of PTL 1 is to reduce steamy feeling by making a difference between inside and outside water absorption and diffusion areas. However, water-absorbing properties and diffusibility exert different mechanisms in reducing steamy feeling. From various studies, the inventors have analyzed to conclude that, as a factor in causing steamy feeling by the glove, moisture such as sweat occurring on the surface of the hand remains on the surface of the hand for a long period of time when the glove is attached.
Thus, the inventors have analyzed to conclude that high water-absorbing properties on the inside in contact with the surface of the hand in the glove base are required to reduce steamy feeling. By contrast, PTL 1 is to make the water-absorbing properties outside the fiber-made glove relatively higher than those inside, and the problem is left that moisture on the surface of the hand tends to be left.
In PTL 2, since water-absorbing fiber is used inside the glove, it can be thought that moisture on the surface of the hand can be efficiently absorbed. However, with the outside of the inner fiber is covered with water-repellent fiber, the absorbed moisture remains in the water-absorbing fiber inside the glove. Thus, if moisture more than absorbable by the inside occurs, a problem also occurs that moisture on the surface of the hand cannot be sufficiently absorbed.
In this manner, the inventors have analyzed to conclude that water-absorbing properties inside the glove base higher than those outside and keeping these high water-absorbing properties are required to decrease steamy feeling.
(2: Diffusibility of Absorbed Moisture on Surface of Hand)
The inventors have analyzed to conclude that only high absorbability of moisture on the surface of the hand has a limit due to the covering outside the glove made of water-repellent fiber as in PTL 2. As a result, the inventors have analyzed to conclude that the outside of the glove base is required to diffuse moisture absorbed by the inside.
In particular, they have analyzed to conclude that the outside of the glove base is required to diffuse and move moisture moved from the inside in a surface direction. Together with the above item 1, they have analyzed to conclude that, in a fiber-made glove base, fibers with different characteristics are exposed to the inside and the outside and the inside is required to have relatively high water-absorbing properties and the outside is required to have relatively high mobility in the surface direction.
Note that, in PTL 1, water-absorbing properties and diffusibility are discussed as the same as a water absorption and diffusion area, which is different from the analysis by the inventors that the inside is required to have relatively high water-absorbing properties and the outside is required to have relatively high diffusibility. Moreover, as will be described further below, while the outside is required to increase moisture mobility in the surface direction, only the water absorption and diffusion area is high in PTL 1, and therefore transmission of moisture from the inside and mobility of the transmitted moisture in the surface direction cannot be enhanced.
As a matter of course, in PTL 2, mobility of moisture on the outside made of the water-repellent fiber in the surface direction is low, which is different from the analysis of the item 2.
(3: Measures when Coating is Provided)
The fiber-made glove base may be used at it is as a glove. However, to improve gripping ability, durability, airtightness, waterproofness, and so forth, coating may be required to be provided to at least part of its surface. This coating is often made of resin, and serves as a lid for the outside of the fiber-made glove base.
Thus, it is difficult for the fiber-made glove base to release moisture absorbed from its surface to the outside. For example, when coating is provided to the surface of the fiber-made glove of PTL 1, the surface is in a state of being covered. As described in the items 1 and 2, the glove of PTL 1 does not have high water-absorbing properties of the inside in contact with the surface of the hand, high transmission ability of moisture from the inside to the outside, or high mobility of moisture on the outside in the surface direction. Thus, moisture on the surface of the hand absorbed by the inside is covered with the coating and cannot be released to the outside. The same goes for PTL 2.
From these analyses, also in consideration of the possibility of provision of coating, the inventors have analyzed to conclude that the fiber outside the glove base is required to have not only simple high moisture mobility but also high mobility to the surface direction. With this high mobility to the surface direction, moisture can move (moisture can be diffused) to an end part as a break of the coating such as the wrist, and moisture moved from this end part can be released to outside air.
As described above, the inventors have analyzed to conclude that three-dimensional moisture movement with high water-absorbing properties of the inside in contact with the surface of the hand, high transmission ability of moisture from the inside to the outside, and high mobility of moisture on the outside in the surface direction is required to reduce steamy feeling in the fiber-made glove base. This is particularly required when coating is provided to the surface of the fiber-made glove base.
The present invention was made based on these analyses.
(General Overview)
First, a general overview of the glove base in the first embodiment of the present invention is described.
The glove base 2 is manufactured by weaving fibers. Here, the glove base 2 includes a first fiber 21 and a second fiber 22. In
Because of this structure, in the glove base 2, mainly the first fiber 21 is exposed to the inside, and this first fiber 21 is in contact with the surface of the hand when the glove base 2 is attached. On the other hand, in the glove base 2, mainly the second fiber 22 is exposed to the outside, and the second fiber 22 is exposed to the outside when the glove base 2 is attached. When the glove base 2 is used at it is as a glove, this second fiber 22 is exposed mainly to the outer surface of the glove. Alternatively, when coating is provided to at least part of the surface of the glove base 2, mainly this second fiber 22 is exposed straight below the coating.
Water-absorbing properties of the first fiber 21 are higher than water-absorbing properties of the second fiber 22. As a result, when the glove base 2 is attached to the hand, the first fiber 21 in contact with the surface of the hand absorbs moisture on the surface of the hand. Furthermore, the first fiber 21 moves the absorbed moisture on the surface of the hand to the second fiber 22. The second fiber 22 moves the moisture moved from the first fiber 21 in a surface direction.
Since the second fiber 22 has relatively lower water-absorbing properties compared with the first fiber, moisture movement ability in the surface direction is relatively higher than moisture movement in a substantially perpendicular direction. Thus, the second fiber 22 can enhance moisture diffusibility in the surface direction compared with the first fiber 21.
In this manner, in the glove base 2 of the first embodiment, mainly the first fiber 21 is exposed to the inside, and mainly the second fiber 22 is exposed to the outside. Having this structure, when the glove base 2 is used as a glove (including a case in which, for use as it is as a glove, additional processing such as coating on the surface is provided for use), the first fiber 21 mainly makes contact with the surface of the hand. Since the first fiber 21 has water-absorbing properties higher than those of the second fiber 22, the first fiber 21 absorbs moisture such as sweat on the surface of the hand. Here, with high water-absorbing properties, the first fiber 21 absorbs moisture centrally in the substantially perpendicular direction.
Since the first fiber 21 and the second fiber 22 make contact with each other, the moisture absorbed by the first fiber 21 moves to the second fiber 22. Here, with the high water-absorbing properties, the first fiber 21 absorbs moisture from the entire surface of the hand in the substantially perpendicular direction, and therefore the first fiber 21 absorbs moisture on the entire inside of the glove base 2. Thus, by using its entirety, the first fiber 21 inside the glove base 2 moves the absorbed moisture to the second fiber 22.
The second fiber 22 receiving moisture from the entire first fiber 21 in this manner by the movement in the substantially perpendicular direction moves the moisture in its surface direction. During movement in the surface direction, the second fiber 22 can release moisture to the outside from the surface exposed to the outside (when the glove base 2 is used as it is as a glove).
Also, by moving moisture in the surface direction, the second fiber 22 can deliver the moisture to an end part of the glove base 2. For example, when coating is provided to the surface of the glove base 2, it is difficult to release moisture from the surface of the glove base 2 where the second fiber 22 is exposed. Also in this case, the second fiber 22 can move moisture to the end part of the glove base 2 along the surface direction. As a result, even if coating is provided, the second fiber 22 efficiently moves moisture to the end part such as the wrist, which is a break of the coating. As a result of this movement, the second fiber 22 can release moisture from this end part to the outside.
In the glove base 2, the first fiber 21 is exposed to the inside, and the second fiber 22 is exposed to the outside. Thus, the first fiber 21 makes contact with the surface of the hand 10. On the surface of the hand 10, moisture such as sweat is present. With high water-absorbing properties, the first fiber 21 absorbs moisture on the surface of the hand 10 along an arrow A and along the substantially perpendicular direction. The first fiber 21 moves the absorbed moisture to the second fiber 22. As a matter of course, the first fiber 21 moves moisture also in a direction other than the arrow A (surface direction and crossing direction). Compared with the second fiber 22, moisture movement efficiency along the direction of the arrow A is high.
Next, the second fiber 22 moves moisture along an arrow B. With moisture movement in the surface direction along the arrow B, the second fiber 22 can move moisture to the end part. In addition to being able to release moisture from the surface with the movement, even if coating is provided, the second fiber 22 can release moisture from the end part as a break of the coating. As a matter of course, the second fiber 22 can move moisture also in a direction other than the arrow B. However, the second fiber 22 has high diffusibility due to water-absorbing properties lower than those of the first fiber 21. In this point, the second fiber 22 can move moisture centrally in the arrow B.
With combination of the first fiber 21 exposed mainly to the inside of the glove base and the second fiber 22 exposed mainly to the outside thereof, the above-described mechanisms function to cause the following operations.
(Operation 1)
With the first fiber 21 having high water-absorbing properties and absorbing moisture on the surface of the hand particularly along the substantially perpendicular direction, a state in which moisture is hardly left on the surface of the hand is kept.
(Operation 2)
With the second fiber 22 moving moisture in the surface direction, moisture can be released also from the end part, in addition to the surface of the glove base 2.
(Operation 3)
In addition to Operation 2, even if coating is provided to the surface of the glove base 2, the second fiber 22 can release moisture from the end part, which is a break of the coating.
With the above mechanisms and operations, the glove base 2 in the first embodiment can reduce steamy feeling by moisture on the surface of the hand even when attached.
Next, details of each unit and so forth are described.
(Water-Absorbing Properties of First Fiber)
The water-absorbing properties of the first fiber 21 is 2.0 to 37.5 with respect to the water-absorbing properties of the second fiber 22. For example, as the first fiber 21, at least one of cotton, hemp, silk, wool, rayon, cupra, and nylon with high moisture absorbing/releasing properties is used. These fibers have high water-absorbing properties as fiber.
By contrast, as the second fiber 22, at least one of normal nylon, polyester, vinylon, vinylidene, polypropylene, and polyethylene is used. These fibers have water-absorbing properties lower than those of the fibers listed as the first fiber 21.
For example, the official moisture regain of wool is 15.0%. On the other hand, the official moisture regain of polyester is 0.4%. Alternatively, the official moisture regain of cotton of the first fiber 21 is 8.5%, the official moisture regain of hemp is 12.0%, the official moisture regain of silk is 12.0%, the official moisture regain of rayon is 11.0%, and the official moisture regain of copra is 11.0%.
On the other hand, the official moisture regain of nylon, which is the second fiber 22, is 4.5%, the official moisture regain of vinylon is 5.0%. Also, the moisture absorbing/releasing properties of nylon with high moisture absorbing/releasing properties are twice as high as those of normal nylon or higher.
With this difference in water-absorbing properties, the water-absorbing properties of the first fiber 21 are 2.0 to 37.5 of the water-absorbing properties of the second fiber.
Here, the water-absorbing properties includes those defined by an amount of water absorption per unit area or unit volume.
(Function of First Fiber)
As the first fiber 21, fiber of any of the types as described above is used. The first fiber 21 is exposed mainly to the inside of the glove base 2. This is achieved by the way of weaving the glove base 2 described below. The first fiber 21 is not woven in a state of being separated from the second fiber 22, but is woven in a state with the first fiber 21 and the second fiber 22 put together.
The first fiber 21 has relatively high water-absorbing properties compared with the second fiber 22. When the glove base 2 is attached to the hand, the first fiber 21 exposed to the inside makes contact with the surface of the hand. The user using the glove by no means sweats on the hand to cause moisture. The first fiber 21 absorbs this moisture on the surface of the hand with high water-absorbing properties.
In particular, the first fiber 21 absorbs moisture on the surface of the hand to move moisture along a substantially perpendicular direction. As a matter of course, moisture is moved also along a crossing direction and a surface direction but, owing to high water-absorbing properties, a movement toward the substantially perpendicular direction can be sufficiently performed.
With this excellent moisture movement ability toward the substantially perpendicular direction, the first fiber 21 can quickly absorb moisture from the entire surface of the hand in contact. Thus, the first fiber 21 exposed mainly to the inside makes moisture hardly left on the surface of the hand in contact.
The first fiber 21 moves moisture absorbed from the surface of the hand, as it is, to the second fiber 22 mainly in the substantially perpendicular direction. By moving moisture to the second fiber 22, the first fiber 21 further absorbs moisture from the surface of the hand easily. In this manner, the glove base 2 can keep a state of moisture hardly left on the surface of the hand by the first fiber 21.
(Function of Second Fiber)
The second fiber 22 moves moisture moved from the first fiber 21 to a surface direction. As a matter of course, movement is made not only in the surface direction but also along the crossing direction and the substantially perpendicular direction, but movement is mainly in the surface direction. Since the water-absorbing properties of the second fiber 22 are lower than the water-absorbing properties of the first fiber 21, the second fiber 22 has diffusibility in the surface direction stronger than water absorption in the substantially perpendicular direction.
With this relative strength of diffusibility, the second fiber 22 can move moisture moved from the first fiber 21 in the surface direction for diffusion. With this diffusion, when the glove base 2 is used as it is as a glove, moisture can be released to the outside by using a wide surface direction.
In particular, the first fiber 21 absorbs moisture from the surface of the hand evenly in the substantially perpendicular direction, but moisture is not present over the entire surface of the hand. That is, depending on a region, the first fiber 21 has a site which does not absorb moisture. In the first fiber 21, a site which absorbs moisture and a site which cannot absorb it are distributed inside the glove base 2.
When moisture to be absorbed by the first fiber 21 is unevenly distributed depending on a site of the glove base 2 as described above, if the second fiber also has the same function of moisture movement as that of the first fiber 21, the second fiber cannot utilize the entire glove base 2 to move and release moisture.
By contrast, the second fiber 22 of the first embodiment moves moisture mainly in the surface direction, thereby spreading moisture to the entire glove base 2 in the course of movement. By being capable of using the entire glove base 2, the second fiber 22 can move and diffuse moisture for release to the outside, without being inferior to moisture absorbing speed by the first fiber 21.
Also, even if coating is provided to the surface of the glove base 2, the second fiber 22 moves moisture along the surface direction, and therefore can move moisture to an end part of the glove base 2. The end part of the glove base 2 is often a wrist portion of the glove base 2. For example, even if coating is provided to the surface of the glove base 2, the second fiber 22 can move moisture to the wrist portion as a break of the coating for release to the outside.
Alternatively, the second fiber 22 can move moisture also to a portion where coating is not provided, other than the wrist. The second fiber 22 can move moisture on the entire outside of the glove base 2 in the surface direction, and therefore can move it to a portion where coating is not provided.
The second fiber 22 can move moisture to this portion where coating is not provided for release to the outside.
As described above, moisture mobility of the first fiber 21 is higher in the substantially perpendicular direction than in the surface direction, and the moisture mobility of the second fiber 22 is higher in the surface direction than in the substantially perpendicular direction.
(When Glove is Provided with Coating)
However, the coating 3 to support the above object is often unnecessary for the wrist portion 7. Thus, the glove 1 is also often without the coating 3 provided to the wrist portion 7.
As described above, the second fiber 22 moves moisture in the surface direction. By being moved in the surface direction, moisture absorbed by the first fiber 21 exposed to the inside of the glove base 2 configuring the glove 1 and moved to the second fiber 22 can be moved by the second fiber 22 to this wrist portion 7. For example, moisture absorbed by the first fiber 21 in contact with the palm of the hand is moved from the first fiber 21 through the second fiber 22 to the wrist portion 7.
As depicted in
In this manner, even if provided with the coating 3 and used as the glove 1, the glove base 2 can move moisture also to a portion not provided with the coating 3 and can release the moved moisture from this portion not provided with the coating 3.
Also in this case, the second fiber 22 performs movement of moisture along the surface direction. While moisture is released to the outside from the surface of the glove base 2 of the back of the hand, 4, not provided with the coating 3 in the course of movement, moisture that has reached the wrist portion 7 can be released from the wrist portion 7 to the outside.
As described above, by moving moisture in the surface direction, the second fiber 22 can release moisture from a portion not provided with the coating 3 or an end portion even if the glove 1 is provided with the coating 3. With this release of moisture to the outside by this movement in the surface direction, the moisture absorbed by the first fiber 21 can be released from a portion in contact with the outside early. As a result, even if the coating 3 is provided to the glove base 2, moisture is hardly left on the surface of the hand. As a matter of course, since moisture in the first fiber 21 in contact with the surface of the hand is also moved by the second fiber 22 for release to the outside, moisture is also hardly left in the first fiber 21.
In this manner, by combining different structures and mechanisms of the first fiber 21 and the second fiber 22, the glove base 2 in the first embodiment can release moisture from a portion not provided with the coating 3 even if the coating 3 is provided to the surface. Thus, even if the glove base 2 is used as it is as a glove or is used as the glove 1 with the coating 3 provided thereto, steamy feeling at the time of attachment can be reduced.
Next, a second embodiment is described. In the second embodiment, a method of achieving a structure in which the first fiber 21 is exposed mainly to the inside and the second fiber 22 is exposed mainly to the outside in the glove base 2 is described.
Plating stitch is also called plated stitch, and is a method of knitting by simultaneously supplying a main string and an appendant string to a knitting needle for knitting. With this knitting method, the main string is exposed to the outside of the glove base 2 to be knitted, and the appendant string is exposed to the inside of the glove base 2 to be knitted. With this exposure, by plating stitch of letting the main string and the appendant string simultaneously passing through the knitting needle, the main string, which is one fiber, is exposed mainly to the inside of the glove base 2. The appendant string, which is the other fiber, is exposed mainly to the outside of the glove base 2.
That is, if the glove base 2 is knitted by plating stitch with main string as the second fiber 22 and the appendant string as the first fiber 21, the first fiber 21 is exposed mainly to the inside and the second fiber 22 is exposed mainly to the outside.
A fiber 200 of
As in
In the glove base 2 formed as described above, the first fiber 21 is exposed mainly to the inside, and the second fiber 22 is exposed mainly to the outside.
(Formation of Coating)
The coating 3 is formed by immersing the glove base 2 in a coating liquid such as a resin liquid to form the coating 3. The resin liquid is accommodated in a container, and the surface of the glove base 2 is immersed in this resin liquid, and the resin liquid infiltrates into the glove base 2. Then, the resin liquid is dried to form the coating 3 on the glove base 2. By appropriately changing a site to be immersed in the resin liquid, the coating 3 can be formed at various sites on the surface of the glove base 2.
Here, when the coating 3 is formed, it is suitable that immersion is performed in a coagulating liquid before immersion in the resin liquid for coating. This is because the coating 3 becomes less prone to reach the inner surface of the glove base 2. Also, with coagulating-liquid immersion, when the coating 3 is formed, the resin liquid for the coating 3 is dried early, and a time for forming the coating 3 is reduced. With this time reduction, the coating 3 is formed neatly. In addition with time reduction, the resin liquid is dried early, and therefore the resin liquid becomes less prone to infiltrate into the inner surface of the glove base 2. Also in this point, with the coagulating liquid, the resin liquid to form the coating 3 becomes less prone to infiltrate into the inner surface of the glove base 2.
(Results of Experiment to Reduce Steamy Feeling of Glove)
Next, results of an experiment to reduce steamy feeling in the glove using the glove base described in the first and second embodiments of the present invention are described. In the experiment, a glove with coating provided to a surface of a glove base manufactured by using the first fiber to be exposed mainly to the inside and the second fiber to be exposed mainly to the outside described in the first and second embodiments of the present invention was manufactured for the experiment.
For reduction in steamy feeling, as described in the first and second embodiments, it is required that the inside of the glove base be excellent in water-absorbing properties (moisture-absorbing properties) and the outside be excellent in releasing properties (moisture-releasing properties). The inventors actually manufactured a glove from the first fiber and the second fiber, then also provided coating thereto, and compared moisture-absorbing properties and moisture-releasing properties of the glove in this state between examples and a comparative example. As has been described above, if high moisture-releasing properties in addition to high moisture-absorbing properties can be confirmed in the glove as a whole, superiority required for reduction in steamy feeling can be confirmed. The inventors manufactured gloves corresponding to the examples and a glove corresponding to the comparative example as depicted in Table 1, and compared moisture-absorbing properties and moisture-releasing properties of the gloves as being set in a thermo-hygrostat bath with predetermined moisture and temperature.
Examples and comparative examples in Table 1 are as follows.
In a glove of Example 1, a glove base manufactured by using nylon with high moisture absorbing/releasing properties as a first fiber and using one string of normal nylon as a second fiber. Furthermore, in Example 1, the glove is provided with coating of polyurethane (PU) (with finger tips further provided with coating of nitrile rubber (NBR)). In each of Example 1 to Comparative Example 4, by providing coating on the surface of the glove base, the experiment is further made in a state of being difficult to reduce steamy feeling. If Examples are superior to Comparative Example even in this state of being difficult to reduce steamy feeling, it is possible to demonstrate that the glove base described in the first and second embodiments is superior in reducing steamy feeling.
In a glove of Example 2, a glove base manufactured by using nylon with high moisture absorbing/releasing properties as a first fiber and using two strings of normal nylon as a second fiber. Furthermore, the glove is provided with coating of polyurethane (PU) (with finger tips further provided with coating of nitrile rubber (NBR)).
In a glove of Comparative Example 1, a glove base with all fiber being two strings of normal nylon is used. Furthermore, the glove is provided with coating of polyurethane (with finger tips further provided with coating of nitrile rubber (NBR)).
The experiment procedure is as follows. Note that each term is defined as follows.
Absolute dry state: A state in which a target glove is dried for one hour by an oven at a temperature of 85° C.
Moisture-absorbing state: A state in which a target glove is left standing for one hour inside a thermo-hygrostat bath at a temperature of 40° C. and a humidity of 90%.
Moisture-releasing state: A state in which a target glove is left standing for one hour inside a thermo-hygrostat bath at a temperature of 20° C. and a humidity of 65%.
(Measurement of Moisture Absorbing Amount and Moisture Absorbing Ratio)
The gloves of Example 1 to Comparative Example 1 in an absolute dry state are placed for one hour inside a thermo-hygrostat bath in a moisture-absorbing state. Then, the moisture absorbing amount and the moisture absorbing ratio of the target gloves are measured. The moisture absorbing amount and the moisture absorbing ratio are computed by formulas as follows.
Moisture absorbing amount (g)=glove weight (g) in a moisture-absorbing state−glove weight (g) in an absolute dry state
Moisture absorbing ratio (%)=(glove weight (g) in a moisture-absorbing state−glove weight (g) in an absolute dry state)/glove weight (g) in an absolute dry state×100
(Measurement of Moisture Releasing Amount and Moisture Releasing Ratio)
The gloves of Example 1 to Comparative Example 1 in a moisture-absorbing state are placed for one hour inside a thermo-hygrostat bath in a moisture-releasing state. Then, the moisture releasing amount and the moisture releasing ratio of the target gloves are measured. The moisture releasing amount and the moisture releasing ratio are computed by formulas as follows.
Moisture releasing amount (g)=glove weight (g) in a moisture-absorbing state−glove weight (g) in a moisture-releasing state
Moisture releasing ratio (%)=(glove weight (g) in a moisture-absorbing state−glove weight (g) in a moisture-releasing state)/glove weight (g) in an absolute dry state×100
Each of the moisture absorbing amount, the moisture absorbing ratio, the moisture releasing amount, and the moisture releasing ratio of each of Example 1 to Comparative Example 1 measured in the above experiment procedure is as depicted in Table 1. In the following, each is described.
(Moisture Absorbing Amount)
The moisture absorbing amount of Example 1 is 0.50 g/Hr. The moisture absorbing amount of Example 2 is 0.72 g/Hr. By contrast, the moisture absorbing amount of Comparative Example 1 is 0.45 g/Hr.
That is, the moisture absorbing amounts of Examples 1 and 2 are higher with respect to Comparative Example 1. Even in a case of being put in the thermo-hygrostat bath with humidity, the gloves of Examples 1 and 2 have a relatively high moisture absorbing amount. As a result, the gloves of Examples 1 and 2 can absorb sweat and moisture on the surface of the hand in a short period of time when attached to the hand.
(Moisture Releasing Amount)
The moisture releasing amount of Example 1 is 0.04 g/Hr. The moisture releasing amount of Example 2 is 0.10 g/Hr. By contrast, the moisture releasing amount of Comparative Example 1 is −0.03 g/Hr.
The moisture releasing amounts of Examples 1 and 2 are higher with respect to Comparative Example 1. That is, the gloves of Examples 1 and 2 can efficiently release sweat and moisture on the hand absorbed to the outside when attached to the hand.
These are also manifested in the moisture absorbing ratio and the moisture releasing ratio. Both of the moisture absorbing ratio and the moisture releasing ratio of the gloves of Examples 1 and 2 are higher than those of Comparative Example 1.
That the moisture absorbing amount (moisture absorbing ratio) and the moisture releasing amount (moisture releasing ratio) are high indicates that the glove can efficiently absorb sweat and moisture on the surface of the hand in a short period of time when attached to the hand and can also early and efficiently release the absorbed moisture to the outside. With these characteristics, even if the glove is attached, steamy feeling the hand feels can be reduced.
As described above, it has been confirmed also from the experiment depicted in Table 1 that the glove base and glove of the present invention can reduce steamy feeling when attached.
A third embodiment is described next. In the third embodiment, it is described that twisted union yarn formed of a first fiber and a second fiber is used to manufacture a base, thereby achieving the glove base described in the first and second embodiments.
When the base 2 is manufactured by using this twisted union yarn 200, one fiber contained in the twisted union yarn 200 is exposed to the inside of the base 2 and the other fiber is exposed to the outside of the base 2. Since the twisted union yarn 200 has the first fiber 21 and the second fiber 22, the first fiber 21 is exposed to the inside of the base 2 and the second fiber 22 is exposed to the outside of the base 2.
In this manner, when the twisted union yarn 200 is used, the base 2 made of the first fiber 21 and the second fiber 22 is manufactured by manufacturing one string of yarn. Furthermore, the first fiber 21 is exposed to the inside and the second fiber 22 is exposed to the outside. By using the twisted union yarn 200, the base 2 described in the first and second embodiments can be manufactured.
For example, as the first fiber 21, any of cotton, hemp, silk, wool, rayon, cupra, and nylon with high moisture absorbing/releasing properties is used. As the second fiber 22, any of normal nylon, polyester, vinylon, vinylidene, polypropylene, and polyethylene is used. If the twisted union yarn 200 with the first fiber 21 and the second fiber 22, which are each any of these fibers, being twisted is used, the base 2 can be achieved in which the inside absorbs moisture on the surface of the hand and moves it to the second fiber 22 and the outside moves the moisture moved from the first fiber 21 mainly in a surface direction.
Also, by changing respective tinting colors of the first fiber 21 and the second fiber 22 forming the twisted union yarn 200, main exposure of the first fiber 21 and the second fiber 22 to the inside and the outside, respectively, can be easily confirmed. As a matter of course, this has a merit also in design, such as varicolored pattern.
As described in the foregoing, the glove described in the first to third embodiments is an example for describing the gist of the present invention and includes modifications and alterations within a range not deviating from the gist of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2015-105886 | May 2015 | JP | national |
| 2016-037189 | Feb 2016 | JP | national |
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/JP2016/058883 | Mar 2016 | US |
| Child | 15372646 | US |
