KR102347677B1 - Cool clothing with improved comfort by utilizing heat of vaporization - Google Patents

Abstract

The present invention relates to cool clothing with improved comfort by using evaporation heat, and more specifically, to cool clothing with improved comfort by using evaporation heat capable of allowing a feature of each material to provide cooling or comfort of a body according to a bonding structure (layering) of fiber materials rather than a cooling mechanism using a mechanical device as a structure applied to an industrial safety suit in summer; providing a cooling effect to a work environment of a user exposed to a high temperature environment in summer; and contributing to revitalization of a domestic fiber industry and various brands by establishing a structure of a new cooling system for maximizing work efficiency and activity in the high temperature environment using a new cooling mechanism.

Description

Cool clothing with improved comfort by utilizing heat of vaporization

The present invention relates to cooling clothing with improved comfort by utilizing heat of vaporization, and more specifically, as a structure applied to industrial safety clothing in summer, etc., not a cooling mechanism using a mechanical device, but each material according to the layering of textile materials can provide a feeling of cooling or comfort to the body, can provide a cooling effect to the working environment of users exposed to high-temperature environments in summer, and improve work efficiency and activity in high-temperature environments by using a new cooling mechanism. By establishing the structure of a new concept cooling system that can be maximized, it is related to cooling clothing that improves comfort by utilizing the heat of vaporization that can contribute to the revitalization of the domestic textile industry and various brands.

Recently, with the development of industry and the advancement of society, social preparation and regulation for human safety and body protection are increasing, and the need for products to increase the efficiency and safety of the body in an environment exposed to extreme external activities is increasing. .

However, most of these industrial safety products have a high level of accumulation of thermal fatigue due to sweat and heat from the body, and thus have significantly lower ergonomic convenience, so development and improvement of industrial safety products for each field are continuously being made, and the market Demand is also constantly being demanded.

In particular, the risk factors for field workers and workers working outdoors and other front lines are exposed to various risk factors according to the nature of work, the work site, and the field conditions. As shown, the level of thermal fatigue accumulation is high enough to lead to a safety accident.

In the field of industrial safety and leisure, people's demands for cooling materials for heat and heat are continuously increasing, and research and development are continuously being made in the market for new methods for developing cooling materials.

As a product to respond to the external environment, development and product categories for heat-generating products have been developed and commercialized in various ways, and safety standards are being prepared. This is insufficient, and only basic products such as yarns and fabrics are being commercialized.

Republic of Korea Patent Registration No. 10-1605119 Republic of Korea Patent Registration No. 10-0516955 Republic of Korea Patent No. 10-1946409 Republic of Korea Patent Publication No. 10-2012-0065592

The present invention has been devised to solve the problems of the prior art, and an object of the present invention is to reduce physical fatigue and improve comfort in a hot or hot working environment in addition to the safety of clothes required by users in industrial safety clothing. It is to provide cool clothing with improved comfort by utilizing the heat of vaporization that improves the comfort by using the heat of vaporization that can maximize work efficiency and activity in a high-temperature environment.

The problems to be solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the cooling clothing in which the comfort is improved by utilizing the heat of vaporization according to the present invention is a lining; Outer feeling; It is characterized in that it includes; an intermediate layer disposed between the lining and the outer material to accommodate moisture.

In addition, in the cooling clothing with improved comfort by utilizing heat of vaporization according to the present invention, the lining is composed of a lining sheet and a first laminating film attached to one surface of the lining sheet, and the outer material is an outer sheet and the outer material It is composed of a second laminating film that is attached to one side of the sheet to provide waterproof and moisture permeable performance, and has a structure in which water vapor generated while the moisture contained in the intermediate layer is vaporized is discharged to the outside through the outer material.

In addition, in the cooling clothing with improved comfort by utilizing the heat of vaporization according to the present invention, the intermediate layer is a closed airtight film formed by bonding the first and second laminating films facing each other to accommodate moisture in the rim area. It consists of an inner space, and an inlet for supplying water is formed on one side of the inner space.

In addition, in the cooling clothing with improved comfort by utilizing heat of vaporization according to the present invention, the intermediate layer is characterized in that it further includes a moisture absorbing member disposed in the inner space.

In addition, in the cooling clothing with improved comfort by utilizing the heat of vaporization according to the present invention, the moisture absorbing member is characterized in that it is antibacterially treated.

In addition, in the cooling clothing with improved comfort by utilizing heat of vaporization according to the present invention, a plurality of division lines forming a flow path are formed in the intermediate layer in the inner space, and the moisture absorbing member is fitted with the division line. It is characterized in that the partition line fitting groove is formed at a position corresponding to the partition line.

In addition, in the cooling clothing with improved comfort by utilizing the heat of vaporization according to the present invention, it is characterized in that an ultrasonic vibrator is installed in the middle layer.

In addition, in the cooling clothing with improved comfort by utilizing the heat of vaporization according to the present invention, the intermediate layer is provided on one side based on a waterproof sheet dividing the middle layer to the left and right, and the waterproof sheet to absorb sweat or moisture generated by the user a first intermediate layer; A second intermediate layer provided on the other side with respect to the waterproof sheet to receive moisture supplied from the outside; characterized in that it is composed of.

According to the cooling clothing with improved comfort by utilizing the heat of vaporization according to the present invention, in addition to the safety of clothing required by the user in industrial safety clothing, it is possible to reduce the thermal fatigue of the body and improve the comfort in a hot or hot working environment. There is an effect of improving comfort by using heat of vaporization that can maximize work efficiency and activity in a high-temperature environment.

Effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1A is a view showing a first embodiment of a cooling garment having improved comfort by utilizing heat of vaporization according to the present invention. It is a cross-sectional view showing the structure of the cooling clothing according to the embodiment.
2 is a photograph of samples used in Test Examples 1 to 3;
3 is a photograph of a state in which the internal temperature measurement of Test Example 3 is performed.
4A to 4C are graphs showing internal temperature measurement results of Test Example 3;
5 is an exploded perspective view showing a second embodiment of the cooling garment according to the present invention.
6 is a cross-sectional view of the second embodiment.
7 is a view showing a third embodiment of the cooling clothing according to the present invention.
8A and 8B are photographs showing a fourth embodiment in which a plurality of perforations penetrating both the lining and the outer fabric are formed in the cooling garment according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail.

In describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary depending on the intention or precedent of the user or operator. Therefore, the definition should be made based on the content throughout this specification.

1A is a view showing a first embodiment of a cooling garment with improved comfort by utilizing heat of vaporization according to the present invention, and schematically shows a state in which a feeling of cooling effect is exerted by heat of vaporization, and FIG. 1B is a first example of FIG. It is a cross-sectional view showing the structure of the cooling clothing according to the embodiment.

Referring to FIGS. 1A to 1B , the cooling clothing 100 with improved comfort by utilizing the heat of vaporization according to the present invention is largely disposed between the lining 110 and the outer fabric 120 and the lining and the outer fabric to provide moisture. It is made to include an intermediate layer 130 for accommodating the.

In this embodiment, the lining 110 is composed of a lining sheet 111 and a first laminating film 112 attached to one surface of the lining sheet 111 .

The lining sheet 111 and the first laminating film 112 may be laminated through an adhesive.

Here, the first laminating film serves to prevent the moisture contained in the intermediate layer from penetrating the user by providing a waterproof performance to the lining.

The first laminating film may be exemplified to have a thickness of 40 to 120 μm.

The outer fabric 120 is composed of an outer fabric sheet 121 and a second laminating film 122 attached to one surface of the outer fabric sheet 121 , and the moisture contained in the intermediate layer 130 is discharged to the outside through the outer fabric. It is characterized in that the structure is

The outer sheet 121 and the second laminating film 122 may be laminated through an adhesive.

The second laminating film 122 provides waterproof and moisture permeable performance to the outer fabric 120 so that the water contained in the intermediate layer 130 is vaporized and generated water vapor is discharged to the outside, and cooling performance by the heat of vaporization generated at this time. plays a role in enabling

The second laminating film may be exemplified to have a thickness of 40 to 120 μm.

And in order to provide smooth moisture permeability performance, for example, it is preferable to have a moisture permeability of 20,000 [g/m 2 ·24h] or more. In order to make the moisture permeability of the entire outer fabric fall within the above-mentioned range, the moisture permeability of the second laminating film should have a level higher than 20,000 [g/m 2 ·24h]. And since the second laminating film having waterproof and moisture permeable performance is already known in Korean Patent Registration No. 10-2092097 and Korean Patent Publication No. 10-2017-0105724, a detailed description thereof will be omitted.

However, in the present invention, the second laminating film having the composition shown in Table 1 below and a liquid adhesive were used to laminate the outer sheet.

ingredient Mixing ratio (parts by weight) 2nd laminating film Polyurethane resin 100 MEK, Methyl-ethyl-ketone 5-15 DMF, Dimethylformamide 5-15 Toluene 15-45 Toner (Black) 5-25 Silica 0.5~3.5 Viscosity 3,000~4,500cps/25℃ glue Polyurethane resin 100 MEK, Methyl-ethyl-ketone 5-15 DMF, Dimethylformamide 5-15 Toluene 15-45 crosslinking agent 8-15 catalyst 0.5~2 Viscosity 3,000~4,500cps/25℃

In Table 1 above, the second laminating film had a thickness of 40㎛ and was subjected to a multi-stage thermal drying process at 70-120 ° C. When laminating with an outer fabric sheet (knitted fabric) through a liquid adhesive, the drying conditions were multi-stage heat drying conditions at 100-130 ° C. It was made through drying, and the moisture permeability of the final outer fabric was tested by the FITI Testing Research Institute, and the moisture permeability was measured according to JIS L 1099: 2012, B-1, potassium acetate method. The moisture permeability measurement result is 21,541 [g/m 2 ·24h].

On the other hand, the edge regions of the first laminating film and the second laminating film are in contact with each other and are bonded. Here, the bonding method may be exemplified by a thermal and high-frequency bonding method, but is not limited thereto.

The intermediate layer 130 of this embodiment consists of a sealed inner space 131 formed by bonding the first laminating film 112 and the second laminating film 122 facing each other to accommodate moisture in the edge region thereof. , characterized in that an inlet 132 for supplying water is formed on one side of the inner space.

In addition, the intermediate layer 130 serves to distribute the moisture absorbing member 133 in the inner space so that moisture or water injected into the intermediate layer can be evenly distributed throughout the clothes.

The moisture absorbing member 133 may be exemplified by processing cellulose-based fibers into a nonwoven fabric having a basis weight of 100 to 300 g/m 2 , but is not limited thereto.

The cellulose-based fiber may be exemplified by cotton, kapok, flax, hemp, hemp, jute, palm fiber, rayon, acetate, and the like.

The moisture absorbing member is preferably treated with an antibacterial agent because there is a risk of mold or bacteria propagation due to the characteristic of containing moisture for a long time.

The antibacterial agent may be an antibacterial powder coated with silver nanoparticles on the surface of at least one of zeolite and activated carbon powder, or a microcapsule containing an antimicrobial component injected into the intermediate layer.

For example, the antibacterial powder may be fixedly attached to the moisture absorbing member using a binder.

On the other hand, in the case of microcapsules, if necessary, they can be put together when water is injected, and the antibacterial properties inside are discharged as they are compressed or the wall material of the microcapsules is melted, thereby exhibiting antibacterial performance.

As the wall material is already known, natural and synthetic polymers such as starch, gum arabic, and cellulose can be mainly used, and as the antibacterial component, any synthetic component commercially available as well as natural components such as ginkgo extract can be used.

On the other hand, tests on heat resistance, moisture permeability resistance, and temperature change of the cooling clothing according to the present invention were requested to the FITI testing institute, and samples 1 to 3 used for the test are shown in FIG. 2 .

[Test Example 1] Thermal resistance test

The heat resistance test was performed according to ASTM F1291-15, and the resultant heat resistance was calculated by Equation 1 below.

[Equation 1]

- Manikin surface temperature: 34±0.5℃

- Test temperature: 29±0.5℃

- Test humidity: 77±5%

- Wind speed: use 0.4±0.1m/s

- For the result value, Parallel R _{ct was} used.

Only the torso was counted, excluding arms and legs.

The test was conducted by adding water to the inside of the test piece.

Water conditions and input amount: 500ml of distilled water left under standard conditions (20℃, 65%)

Table 2 below shows the result of thermal resistance by Equation 1.

sample 1 sample 2 sample 3 Thermal resistance (㎡·℃/W) 0.015 0.005 0.004 Thermal index (clo) 0.099 0.033 0.026

[Test Example 2] Moisture permeability resistance

The moisture permeation resistance was tested in accordance with ASTM F2370-16, and the resultant moisture permeation resistance was calculated by Equation 2 below.

[Equation 2]

- Manikin surface temperature: 35±0.5℃

- Test temperature: 35±0.5℃

- Test humidity: 77±5%

- Wind speed: use 0.4±0.1m/s

- For the result value, Parallel R _{ct was} used.

Only the torso was counted, excluding arms and legs.

The test was conducted by adding water to the inside of the test piece.

Water conditions and input amount: 500ml of distilled water left under standard conditions (20℃, 65%)

The resultant value of the moisture permeation resistance according to Equation 2 is shown in Table 3 below.

sample 1 sample 2 sample 3 Moisture permeation resistance (kPa ㎡/W) 0.016 0.019 0.013

[Test Example 3] Internal temperature measurement

In the internal temperature measurement test, the internal temperature measurement of specimens 1 to 3 was performed in the manner shown in FIG. 3 , and the results were described in the graphs of FIGS. 4A to 4C , respectively. As can be seen from the graphs of FIGS. 4A to 4C , it was confirmed that the cooling clothing of the present invention significantly lowered the internal temperature.

- Manikin surface temperature: 34±0.5℃

- Test temperature: 29±0.5℃

- Test humidity: 77±5%

- Wind speed: 0.4±0.1m/s

- Measurement time: 8h

The test was conducted by adding water to the inside of the test piece.

Water conditions and input amount: 500ml of distilled water left under standard conditions (20℃, 65%)

5 is an exploded perspective view showing a second embodiment of the cooling clothing according to the present invention, and FIG. 6 is a cross-sectional view of the second embodiment.

5 and 6 , in the present embodiment, in the intermediate layer 130 , a plurality of partition lines 134 forming flow paths are formed in the inner space, and the partition lines 134 are formed on the moisture absorbing member 133 . ), a partition line fitting groove 133a is formed at a position corresponding to the partition line so as to be fitted in the partition line.

A plurality of partition lines 134 are formed in the transverse direction to form a zigzag flow path in the inner space, and a first partition line 134 extending from one end of the inner space and spaced apart from the other end of the inner space; It is extended from the other end of the inner space and is configured with a second dividing line 134 spaced apart from one end of the inner space, and it may be exemplified that the first dividing line and the second dividing line are alternately arranged.

The first division line and the second division line may be made of the same material as the first and second laminating films, and bonding may be exemplified by mutual thermal fusion or the like.

In this way, the middle layer can be easily partitioned.

And an ultrasonic vibrator 140 is installed in the intermediate layer 130 to forcibly vaporize the moisture contained in the intermediate layer into water vapor to control the amount of heat of vaporization.

The ultrasonic vibrator 140 may be installed singly or in plurality, and in the case of a single number, it is preferable to be installed under the middle layer where moisture is most dense by gravity. It becomes possible to operate the ultrasonic vibrator of the position.

Electricity of the ultrasonic vibrator 140 is supplied through a battery 141, a wire (not shown) electrically connecting the battery 141 and the ultrasonic vibrator 140, and an on/off controller (not shown), etc. In particular, the electric wire may be formed by printing on the first laminating film or the second laminating film.

7 is a view showing a third embodiment of the cooling clothing according to the present invention.

Referring to FIG. 7 , in this embodiment, the intermediate layer 130 is provided on one side with respect to the waterproof sheet 135 dividing the intermediate layer to the left and right, and the waterproof sheet 135 to absorb sweat or moisture generated by the user. At the same time, the first intermediate layer (130a) that transfers the cooled heat generated by the heat of vaporization of absorbed sweat or moisture to the user, and the first intermediate layer (130a) provided on the other side based on the waterproof sheet (135) to accommodate the moisture supplied from the outside It is characterized in that it is composed of two intermediate layers (130b). In addition, a moisture absorbing member 133 may be disposed on the first intermediate layer 130a and the second intermediate layer 130b, respectively.

In the case of the first embodiment described above, since the lining to the first laminating film is made of a waterproof material, not only the moisture contained in the intermediate layer is not transmitted to the user through the lining, but also the sweat generated by the user is discharged to the outside through the lining. It was difficult to control the humidity inside the clothes.

However, in this embodiment, the first laminating film may be made of a breathable material or may be omitted, and the first intermediate layer provided on one side of the waterproof sheet absorbs sweat from the inside of the clothing and discharges it to the outside. As the absorbed sweat is vaporized, a cooling effect may occur through the heat of vaporization.

In addition, the second intermediate layer provided on the other side of the waterproof sheet serves to receive and vaporize moisture input from the outside.

That is, in terms of the cooling effect due to the heat of vaporization, a method of forced vaporization by moisture input according to the user's choice is adopted in the second intermediate layer, and the first intermediate layer absorbs sweat generated by the user and evaporates naturally. Since the method is adopted in a complex way, the vaporization performance can be doubled.

In addition, it is preferable that the first intermediate layer has an open top or bottom in order to promote external discharge and vaporization of sweat.

In this embodiment, as in the second embodiment, an ultrasonic vibrator can be installed, and in this case, it can be installed on the second intermediate layer.

8A and 8B are photographs illustrating a fourth embodiment in which a plurality of perforation holes penetrating both the lining and the outer fabric are formed in the cooling garment according to the present invention.

8A and 8B , the present embodiment is characterized in that a plurality of perforated holes are formed through the lining and the outer fabric of the cooling clothing so that moisture generated from the user's body can be discharged to the outside, and through the heat of vaporization Since the process of providing a feeling of cooling and discharging the internal moisture to the outside is performed at the same time, there is an effect of maximizing the cooling efficiency.

The present invention described above is merely exemplary, and those of ordinary skill in the art to which the present invention pertains will appreciate that various modifications and equivalent other embodiments are possible therefrom. Therefore, it will be well understood that the present invention is not limited to the form mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. Moreover, it is to be understood that the present invention covers all modifications, equivalents and substitutions falling within the spirit and scope of the invention as defined by the appended claims.

100: cold clothing 110: lining
111: lining sheet 112: first laminating film
120: outer material 121: outer material sheet
122: second laminating film 130: intermediate layer
131: interior space 132: inlet
133: moisture absorption member 133a: fitting groove
133b: vibrator fitting hole 134: division line
135: waterproof sheet 140: ultrasonic vibrator
141: battery

Claims (8)

It includes a lining, an outer fabric, and an intermediate layer disposed between the lining and the outer fabric to receive moisture,
The lining is composed of a lining sheet and a first laminating film attached to one surface of the lining sheet,
The outer material is composed of an outer sheet and a second laminating film attached to one surface of the outer sheet to provide waterproof and moisture permeable performance,
It has a structure in which the water vapor generated in the intermediate layer is vaporized and discharged to the outside through the outer material,
The intermediate layer is composed of a closed inner space formed by bonding the first and second laminating films facing each other to accommodate moisture in the edge region thereof,
Cool clothing with improved comfort by utilizing heat of vaporization, characterized in that an ultrasonic vibrator is installed in the intermediate layer.
delete According to claim 1,
Cool clothing with improved comfort by utilizing heat of vaporization, characterized in that an inlet for supplying water is formed on one side of the inner space.
According to claim 1,
The intermediate layer further comprises a moisture absorbing member placed in the inner space, cooling clothing with improved comfort by utilizing heat of vaporization.
5. The method of claim 4,
The moisture absorbing member,
Cool clothing with improved comfort by utilizing the heat of vaporization, which is characterized by antibacterial treatment.
5. The method of claim 4,
The intermediate layer is
A plurality of dividing lines forming a flow path are formed in the inner space,
Cooling clothing with improved comfort by utilizing heat of vaporization, characterized in that the moisture absorbing member has a partition line fitting groove formed at a position corresponding to the partition line so as to be fitted into the partition line.
delete According to claim 1,
The intermediate layer is
A waterproof sheet partitioning the middle layer from side to side;
a first intermediate layer provided on one side of the waterproof sheet to absorb sweat or moisture generated by the user;
Cool clothing with improved comfort by utilizing heat of vaporization, characterized in that it comprises;

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