JP2012017534A - Functional fabric having both high breathability and protective performance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a functional fabric having both high breathability and protective performance.SOLUTION: The functional fabric having both high breathability and protective performance includes an elastic cloth 10 and a breathable cloth 20. The breathable cloth 20 is disposed on the elastic cloth 10 and includes a plurality of contact areas 21 connected to a bonding surface 11 and a plurality of protrusion areas 22 adjacent to the contact areas 21. The protrusion areas 22 and the bonding surface 11 define chambers 30 capable of containing gas. The elastic cloth 10 changes between a stretched state and an unstretched state, and at the same time, the protrusion areas 22 move toward the bonding surface 11, thereby changing the volume of the chambers 30 to increase the pressure in the chambers 30. This causes the gas to pass through the elastic cloth 10 to achieve high breathability.

Description

  The present invention relates to a functional fabric, and more particularly to a functional fabric having an excellent ventilation effect and a protective function.

Functional fabric refers to fabrics with specific functions such as waterproofness, breathability, UV protection, anti-shock, abrasion resistance, and light weight, and is widely applied in daily life, leisure, and specialized fields.
In particular, when exercising or climbing, or when military personnel, police officers, firefighters, etc. perform duties, they usually wear or wear clothing or armor sewn with a functional fabric with anti-shock function. It is necessary to arrive.
Among products currently being developed by related companies, this type of fabric mainly has a function to reduce the impact force from the outside by selecting a material with a vibration absorbing effect or a design with a buffer structure added. providing.

Patent document 1 discloses the manufacturing method of the polyurethane protective pad which protects a human body.
It uses a terry woven tube and attaches a foam pad to the outer surface of the tube.
The foam pad is a sponge using polyurethane (Polyurethane, abbreviated as PU).
Patent Document 2 discloses a protection pad for exercise.
It comprises a tube and a material with high anti-friction performance that is installed on the tube.
The tube includes a protective pad portion and a non-protective pad portion, and a protective pad is installed in the protective pad portion.
The protective pad is a foamable polymeric material that provides a protective effect.

Patent document 3 discloses the joint protection apparatus used for intense exercise.
It is equipped with a buffer protection pad, a semi-hard lid, and a flexible cover, which are installed from inside to outside.
The material of the protective pad is selected from polyethylene (abbreviated as Polyethylene, PE) sponge or polyurethane (abbreviated as Polyurethane, PU) sponge.
The lid is made of a material of polyvinyl chloride (abbreviated as PVC), polypropylene (abbreviated as Polypropylene, PP), or polyethylene (abbreviated as Polyethylene, PE), and is formed to a constant thickness by injection molding.
Patent document 4 discloses a protective cover body.
It comprises a soft inner layer and a hard outer layer, and an intermediate layer can be separately provided between the soft inner layer and the hard outer layer.
For the soft inner layer and the intermediate layer, foamable ethylene-vinyl acetate (abbreviated as EVA) is adopted.
Patent document 5 discloses a stretchable protective protective pad.
It comprises a metal cover, a sponge, and a neoprene that is a synthetic rubber.

All of the functional fabrics disclosed in the above-mentioned conventional technologies adopt an elastic material such as a foaming polymer material or rubber, and have a certain thickness to provide anti-shock mechanical properties for protection. It is a pad.
However, although this type of material can provide a sufficient protective effect to the human body, there is a drawback that the air permeability is poor.
Therefore, in actual application, the user feels unbearable sultry heat.
However, sweat generated by exercise is not easily discharged out of clothes or protective equipment, and it is not possible to provide a refreshing comfort to the user.
The present invention has been made in view of the above-described drawbacks of a functional fabric having conventional protection performance.

U.S. Pat.No. 4,292,263 U.S. Patent No. 6,192,519 U.S. Patent No. 6,122,768 US Patent Publication No. US2009 / 0255037 U.S. Pat.No. 5,416,924

  The problem to be solved by the present invention is that the functional fabric having a conventional protection function has poor gas permeation function, so that the user feels the heat and heat that is unbearable to the user. It is to provide a functional fabric that combines performance.

In order to solve the above problems, the present invention provides a functional fabric having the following high air permeability and protection performance.
The functional fabric that combines high breathability and protection performance is equipped with elastic cloth, breathable cloth,
The elastic cloth has a bonding surface, and the elastic cloth receives a force parallel to the bonding surface, exhibits an extended state when receiving the force, and exhibits an unextended state when not receiving the force.
The vent cloth is installed on the elastic cloth, and the vent cloth includes a plurality of contact areas connected to the coupling surface, and a plurality of raised areas adjacent to the contact areas.
The raised area and the coupling surface define a chamber capable of containing gas,
The contact area moves relative to the elastic fabric from an unextended state to an extended state, and the raised area moves to the coupling surface according to the relative movement, whereby the chamber changes volume. Creating a pressure difference, thus allowing the gas to pass through the elastic cloth,
The elastic cloth includes a bottom layer, a vertex layer connected to the breathable fabric, and a support layer installed between the bottom layer and the vertex layer,
The support layer includes support portions whose both ends are connected to the bottom layer and the apex layer, respectively.

The functional fabric having both high air permeability and protective performance of the present invention can achieve the following effects as compared with the conventional technology.
1. With the structural design of the present invention, during the user's activity, the force is provided to the elastic cloth, interlocking the depression of the raised area, thereby increasing the chamber pressure and forcing the air to the user's skin. The functional fabric achieves a high ventilation effect.
2. Since another pressure difference corresponding to each other is generated between the elastic cloth and the skin, the heat exhausted by the pressure difference is discharged to the outside of the functional fabric, and thus is applied to the skin during exercise. Can give a cool and refreshing feel.
3. In addition to having the effect of flowing air, the raised area can also provide the function of protecting the human body, and when receiving external impact force, it absorbs part of the impact energy and reduces injury to the human body. Can do.
4). By installing the support part in the elastic cloth, the ability to buffer the impact force from the outside can be increased, and also the ductility in the vertical direction is provided, and at the same time, the bottom layer and the apex layer with different weaving directions are combined. Thus, providing a ductility in the transverse direction, the elastic fabric has the best stretching effect in all three dimensions.

It is an exploded display figure of the functional fabric 1st example which has high air permeability and protection performance of the present invention. FIG. 3 is a cross-sectional display view of an unstretched elastic cloth in the first functional fabric example having both high air permeability and protection performance. FIG. 3 is a cross-sectional view of the stretched elastic cloth in the first example of the functional fabric having both high air permeability and protection performance. FIG. 3 is a cross-sectional display view of an elastic cloth in a second embodiment of the functional fabric having both high air permeability and protection performance according to the present invention.

  The best mode for carrying out the present invention will be described in detail below with reference to the drawings.

FIG. 1 is an exploded schematic view of the functional fabric first embodiment having both high air permeability and protection performance according to the present invention. In the functional fabric first embodiment having high air permeability and protection performance according to the present invention, the unstretched state As shown in FIG. 2, which is a schematic cross-sectional view of the elastic cloth, the first embodiment of the functional fabric having high breathability and protection performance of the present invention includes an elastic cloth 10 and a breathable cloth 20.
The elastic cloth 10 includes a coupling surface 11, and the ventilation cloth 20 is installed on the elastic cloth 10.
The ventilation cloth 20 includes a plurality of contact areas 21 and a plurality of raised areas 22.
The contact area 21 is interconnected with the coupling surface 11 and the raised area 22 is adjacent to the contact area 21.
The raised area 22 and the coupling surface 11 define the chamber 30, and the gas enters the chamber 30 from the raised area 22 of the ventilation cloth 20.
The raised area 22 includes a peripheral portion 221 and a vertex portion 222.
The peripheral edge 221 continues to the contact area 21, and the apex 222 extends from the peripheral edge 221.
The outer diameter of the apex portion 222 is smaller than the peripheral portion 221, whereby the raised area 22 has a hemispherical shape.
In the present embodiment, the raised areas 22 are regularly arranged along the two-dimensional direction, but the actual application is not limited to this, and irregular arrangement is also possible.

In this embodiment, the elastic cloth 10 and the ventilation cloth 20 are bonded to each other through the adhesive bonding layer 40 provided on the bonding surface 11.
The adhesive bonding layer 40 uses a moisture curable polymer resin having a ventilation effect and can retain its ductility after curing, for example, polyurethane (abbreviated as Polyurethane, PU), or polymethylmethacrylate (Polymethylmethacrylate, PMMA). Polymers such as (abbreviation) are preferred.
First, using a roller printing, knife printing, or spraying method, a moisture curable polymer resin is applied to the bonding surface 11 and the air-permeable cloth 20 is bonded, The molecular resin is cured to form the adhesive bond layer 40.
The adhesive bonding layer 40 includes a plurality of bonding areas 41 and a plurality of non-bonding areas 42 that complement the bonding areas 41.
Due to the joining area 41, the coupling surface 11 and the contact area 21 are intimately joined to each other.
The adhesive bonding layer 40 uses a chemical bonding method, and the elastic cloth 10 and the ventilation cloth 20 can be bonded to each other by a mechanical bonding method by various knitting processes.

As shown in FIG. 2, the elastic fabric 10 includes a vertex layer 12, a bottom layer 13, and a support layer 14.
The vertex layer 12 is bonded to the breathable fabric 20 through the adhesive bonding layer 40.
The support layer 14 is disposed between the apex layer 12 and the bottom layer 13, and the support layer 14 includes a plurality of support portions 141.
Both ends of the support portion 141 are connected to the apex layer 12 and the bottom layer 13, respectively, and the support portions 141 intersect with each other at a certain angle.
The angle is between 10 ° and 90 °.
When applied to clothing that directly contacts human skin, the flexible layer 50 can be added to the surface of the elastic fabric 10 that is opposite to the ventilation fabric 20.
The flexible layer 50 employs a breathable fabric having a soft feel such as cotton or a mixture thereof with synthetic fibers.
Similar to the bonding method between the elastic cloth 10 and the ventilation cloth 20, the flexible layer 50 and the ventilation cloth 20 also use a chemical bonding or mechanical bonding technique.

In the present invention, the bottom layer 13, the apex layer 12, and the breathable cloth 20 are manufactured by a weaving method such as weaving, knitting, or crochet.
In this embodiment, the bottom layer 13 and the apex layer 12 are preferably manufactured by a circular knitting needle loom and knitted along the radial direction and the weft direction, respectively. Can be provided respectively.
It is preferable to use a warp knitting machine for the breathable cloth 20, and thereby the surface of the breathable cloth 20 can have better wear resistance.
The yarns of the bottom layer 13, the apex layer 12, and the breathable fabric 20 are elastic fibers that are commonly used in all textile regions, spandex fibers, nylon 6 fibers, and nylon 6-6 fibers. Polyethylene terephthalate (abbreviated as PET) fiber, polyurethane (abbreviated as Polyurethane, PU) fiber, polyethylene (abbreviated as Polyethylene, PE) fiber, polypropylene (abbreviated as Polypropylene, PP) fiber, or a combination of the above fibers .

The support portion 141 includes polyester (Polyester) fiber, polypropylene (Polypropylene, abbreviated as PP) fiber, polyamide (polyamide) fiber, polyethylene (Polyethylene, abbreviated as PE) fiber, polyacrylonitrile (abbreviated as PAN) fiber, Alternatively, it is a single yarn fiber such as polyethylene terephthalate (abbreviated as PET) fiber.
The support portion 141 is preferably coupled to the bottom layer 13 and the apex layer 12 using a hanging needle method.

In actual use, when the user is stationary or in a state where the amount of activity is relatively small, the elastic cloth 10 exhibits the unstretched state shown in FIG.
At this time, the chamber 30 maintains its original appearance.
Subsequently, in the first example of the functional fabric having both high air permeability and protection performance according to the present invention, as shown in FIG. 3 which is a cross-sectional schematic diagram of the stretched elastic fabric, the elastic fabric 10 is activated during the user's activity. Receives a force parallel to the coupling surface 11.
For example, when an operation such as bending a joint or stretching the body is performed, the elastic cloth 10 extends in the lateral direction.
At this time, the elastic cloth 10 is in an extended state.
Since the elastic cloth 10 and the vent cloth 20 are tightly coupled, the elastic cloth 10 causes the vent cloth 20 to stretch in the lateral direction at the same time, and at the same time, the contact area 21 extends from the unstretched state to the stretched state. Relative movement occurs until
At this time, the raised area 22 is interlocked and moved in the direction of the coupling surface 11, and thus the chamber 30 is depressed downward and the volume changes.

As shown in FIG. 3, the chamber 30 produces a pressure difference relative to the change in volume.
This pressure differential is the increased pressure in the chamber 30 that causes the gas to flow downward.
Thereby, the part of the elastic cloth 10 corresponding to the raised area 22 forms a passage through which gas can be introduced into the skin.
Thus, as shown by the downward arrow in FIG. 3, the gas passes through the elastic cloth 10 and the flexible layer 50 through the passage and reaches the skin of the human body.
In addition, when gas is rapidly introduced into the area between the soft layer 50 and the human skin, gas pressure is generated in the area, so that the heat dissipated by the human skin is localized in the passage portion and flows. Drain out of contact area 21.
Thus, as shown by the upward arrow in FIG. 3, the portion of the elastic cloth 10 corresponding to the contact area 21 forms a passage for speaking heat from the skin.
That is, since gas and heat form an air flow circulation in the passage, the functional fabric of the present invention can exchange cold air and hot air in the skin during human activity.

In the second embodiment of the functional fabric having high breathability and protective performance of the present invention, as shown in FIG. 4 which is a schematic cross-sectional view of an elastic cloth, the weaving method of the elastic cloth 20 is changed, The outer diameter of the part 222a can be made larger than the peripheral part 221a.
Thereby, the raised area 22 exhibits a water droplet-like appearance.
Moreover, in order to reduce the obstacle at the time of delivering gas to skin, the adhesive bonding layer 40 can be configured such that only the bonding area 41 is installed on the bonding surface 11.
As shown in FIG. 4, the adhesive bonding layer 40 includes a blank area 43 that corresponds to the raised area 22 so that when a moisture-curing polymer resin is applied, a net screen or other similar equipment is provided. Can be used.

Next, the ventilation performance and anti-impact property provided in the functional fabric of the present invention will be described.
This will be described based on evaluation tests performed in the following examples, which are provided only for the purpose of explanation and do not limit the scope of the present invention.

The vent fabric 20 of the functional fabric disclosed by the present invention has a structure shown in FIG. 2 manufactured by a warp knitting machine.
The yarn it uses is a mixture of nylon 6 fiber and polyurethane fiber, the deniers of which are 70 and 40, respectively.
The apex layer 12 and the bottom layer 13 are produced by a circular knitting machine, and the yarns used are made of a mixture of nylon 6 fibers and polyurethane fibers, and the deniers are 50 and 40, respectively.
The support portion 141 uses a 30 denier polyethylene terephthalate fiber, and the support portion 141 is bonded to the apex layer 12 and the bottom layer 13 using a hooking method.
The material used for the adhesive bonding layer 40 is a pre-urethane moisture curable polymer resin.
The above-mentioned denier is a fiber weight (g) of 9000 meters each.

For the tests on ventilation performance and anti-impact properties, we adopt ASTM D737, a textile ventilation test method established by the American Society for Testing Materials (abbreviated as ASTM), and a drop impact tester.
The comparative example used employs neoprene, and specific numerical data are shown in Table 1.
ASTM D737 measures how many cubic feet per minute (abbreviated as cfm) of air pass every minute.
The impact energy used in the anti-impact test is 6 joules, and the magnitude of the load on the opposite side of the impacted surface when the vent cloth 20 receives the impact energy (unit is kilonewtons, kN). Abbreviated).

As is apparent from the above table, the functional fabric disclosed by the examples can pass 34.90 cfm of air per minute in the ASTM D737 test, while the comparative example is 0 cfm.
In the anti-impact test, when the user wears the functional fabric of the example when receiving an impact energy of 6 joules, the user receives a load of only 10.3 kN, but the neoprene of the comparative example ) Will receive a load of 17.4kN.
In other words, the above-described embodiment is superior to neoprene in both ventilation performance and impact resistance.

As described above, the functional fabric having high breathability and protection performance according to the present invention uses the design of the raised area 22 to form the chamber 30 in the functional fabric, and the chamber 30 contracts according to the movement of the human body. Due to the pressure difference caused by the volume change, gas is introduced into the human skin, and at the same time, the heat generated by the human skin is quickly discharged.
Thereby, even if the support layer 14 is installed in the elastic cloth 10, the pressure difference allows the gas to pass through the elastic cloth 10, thus achieving a gas circulation effect of cold air and hot air.
At the same time, the three-dimensional design of the raised area 22 and the support portion 141 reduces the external impact injury to the human body, so that the functional fabric can have both high breathability and protective ability.

Furthermore, in the elastic fabric 10, the bottom layer 13 and the apex layer 12 are knitted in the weft direction and the radial direction, respectively, and the functional portion of the present invention is excellent in the three-dimensional direction by combining the support portion 141. Ability can be exerted so that the user is not restricted by the activity.
At the same time, the breathable fabric 20 is manufactured by a warp knitting machine, and therefore has wear resistance.

  The above-mentioned names and contents of the present invention are only used for explaining the technical contents of the present invention, and do not limit the present invention. All equivalent applications or parts (structures) conversion, replacement and increase / decrease in quantity based on the spirit of the present invention shall be included in the protection scope of the present invention.

  The present invention has the novelty that is a requirement of patents, has sufficiently advanced as compared with conventional similar products, has high practicality, meets the needs of society, and has a great industrial utility value.

DESCRIPTION OF SYMBOLS 10 Elastic cloth 11 Bonding surface 12 Vertex layer 13 Bottom layer 14 Support layer 141 Support part 20 Ventilation cloth 21 Contact area 22 Raised area 221, 221a Peripheral part 222, 222a Vertex part 30 Chamber 40 Adhesive bonding layer 41 Bonding area 42 Non-bonding area 43 Blank area 50 Flexible layer

Claims (14)

Equipped with elastic cloth, breathable cloth,
The elastic cloth includes a coupling surface, the elastic cloth receives a force parallel to the coupling surface, exhibits an extended state when receiving the force, and exhibits an unextended state when not receiving the force,
The vent cloth is installed on the elastic cloth, and the vent cloth includes a plurality of contact areas connected to the coupling surface, and a plurality of raised areas adjacent to the contact areas.
The raised area and the coupling surface define a chamber capable of containing gas,
The contact area moves relative to the elastic cloth from an unextended state to an extended state, and the raised area moves to the coupling surface according to the relative movement, whereby the chamber changes its volume. A functional fabric having both high breathability and protection performance, characterized in that pressure is generated to allow the gas to pass through the elastic cloth.   2. The high breathability and protection performance according to claim 1, wherein the elastic cloth includes a bottom layer, a vertex layer connected to the breathable fabric, and a support layer installed between the bottom layer and the vertex layer. Functional fabric that combines.   The bottom layer and the apex layer are spandex fiber, nylon 6 fiber, nylon 6-6 fiber, polyethylene terephthalate (abbreviated as PET) fiber, polyurethane (Polyurethane) 3. High breathability and protective performance according to claim 2, wherein the fiber is selected from the group consisting of fibers made of polyethylene (abbreviated as PU), polyethylene (abbreviated as Polyethylene, PE) and polypropylene (abbreviated as Polypropylene, PP) fibers. Functional fabric that combines.   The functional fabric having both high air permeability and protection performance according to claim 2, wherein the support layer includes support portions whose both ends are connected to the bottom layer and the apex layer, respectively.   The functional fabric having high breathability and protection performance according to claim 4, wherein the support portions intersect each other at an angle of 10 ° to 90 °. The support portion is a single fiber,
The single yarn fiber is a polyester fiber, a polypropylene (abbreviated as PP) fiber, a polyamide fiber, a polyethylene (abbreviated as PE) fiber, a polyacrylonitrile (abbreviated as PAN) fiber. The functional fabric having both high air permeability and protective performance according to claim 4, wherein the functional fabric is selected from the group consisting of polyethylene terephthalate (abbreviated as PET) fiber. On the bonding surface, an adhesive bonding layer is installed,
The functional fabric having high breathability and protection performance according to claim 1, wherein the adhesive bonding layer includes a plurality of bonding areas connected to the bonding surface and the contact area.   The functional fabric having both high air permeability and protection performance according to claim 7, wherein the adhesive bonding layer includes a plurality of blank areas corresponding to the raised areas.   The functionality having both high air permeability and protection performance according to claim 7, wherein the adhesive bonding layer is polyurethane (abbreviated as Polyurethane, PU) or polymethyl methacrylate (abbreviated as Polymethylmethacrylate, PMMA). fabric.   The breathable cloth is spandex fiber, nylon 6 fiber, nylon 6-6 fiber, polyethylene terephthalate (abbreviated as PET) fiber, polyurethane (abbreviated as Polyurethane, PU). 2. The function having both high air permeability and protective performance according to claim 1, wherein the function is selected from the group consisting of fiber, polyethylene (abbreviated as Polyethylene, PE) fiber, and polypropylene (abbreviated as Polypropylene, PP) fiber. Sex fabric.   The functional fabric having both high air permeability and protective performance according to claim 1, wherein the raised area includes a peripheral edge part that contacts the contact area and a vertex part extending from the peripheral edge part. .   The functional fabric having high air permeability and protection performance according to claim 11, wherein the apex portion has an outer diameter larger than that of the peripheral edge portion.   The functional fabric having high air permeability and protection performance according to claim 11, wherein the apex portion has an outer diameter smaller than the peripheral portion.   The functional fabric having both high breathability and protection performance according to claim 1, wherein the elastic fabric is provided with a flexible layer on a surface opposite to the ventilation fabric.

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