Sustained cold non-woven fabric

Abstract

A durable cold-sensing non-woven fabric suitable for being placed inside a compress and used is realized. 【Solution means】The cold-sensing durable non-woven fabric 1 from which cold-sensing can be continuously obtained is formed by the penetration of a cold-sensing gel from the entire surface of a base material made of synthetic fibers, and is placed inside a rug 2 which is a compress. The cold-sensing gel contains a urethane elastomer composite material for exerting the effect of durable cold-sensing, a phase change material, and a cold-sensing material. When the body is placed on the rug 2, body temperature is transmitted to the internal durable cold-sensing non-woven fabric 1 through the surface fabric 3 of the rug 2. When heat is transmitted to the cold-sensing gel penetrated into the base material, cold-sensing is obtained by the heat absorption of the phase change material and the cold-sensing material. Since the base material which is a non-woven fabric has good air permeability, the transmitted heat can be diffused, the temperature rise of the cold-sensing gel can be efficiently suppressed, and cold-sensing can be maintained for a long time.

Description

Technical Field

[0001] The present invention relates to a non-woven fabric with a sustainable cooling sensation that can continuously obtain a cooling sensation.

Background Art

[0002] As a fabric that feels cool, Patent Document 1 describes a cool fabric in which a cool material layer is applied to one or both sides of a fabric made of woven or non-woven fabric. The cool material layer contains microcapsules containing a phase change substance, a contact cool material, and an organic binder. When the body comes into contact with the cool fabric, heat absorption due to the dissolution of the phase change substance and heat absorption by the contact cool material act. In addition, since the heat absorption due to the dissolution of the phase change substance also directly acts on the contact cool material, the temperature rise of the contact cool material can be suppressed, and the duration of the cool sensation can be extended.

[0003] Such a cool fabric is used as the outer fabric of textiles such as bedding covers, sheets, futons, poultices, pillow rugs, and cushions. Alternatively, it is arranged inside the outer fabric of the textile, and the cool material layer is applied to the surface in contact with the outer fabric.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] When the cool fabric is arranged inside a mat and used, a non-woven fabric with good air permeability is suitable as the fabric. Also, just forming a cool material layer on the surface of the fabric does not provide a sufficient effect of sustainable cool sensation. Therefore, in consideration of these points, an object of the present invention is to provide a non-woven fabric with a sustainable cool sensation suitable for being arranged inside a mat and used.

Means for Solving the Problems

[0006] The cold-sensation sustainable nonwoven fabric that can continuously obtain the cold sensation of the present invention is formed by the penetration of a cold-sensation gel from the entire surface of a base material made of synthetic fibers and is arranged inside the futon. The cold-sensation gel contains a urethane elastomer composite material for exerting the effect of sustainable cold sensation, a phase-change material, and a cold-sensation material.

[0007] Among futons such as rugs, mats, cushions, futons, pillows, hot compress pads, and pillow pads, they are stacked in the order of the surface fabric, cushion material, and back fabric, and the cold-sensation sustainable nonwoven fabric is arranged between the surface fabric and the cushion material.

[0008] When the body is placed on the futon, the body temperature is transmitted to the internal cold-sensation sustainable nonwoven fabric through the surface fabric of the futon. When heat is transmitted to the cold-sensation gel that has penetrated the base material, a cold sensation is obtained due to the heat absorption of the phase-change material and the cold-sensation material. And since the base material, which is a nonwoven fabric, has good air permeability, the transmitted heat can be diffused, and the temperature rise of the cold-sensation gel can be efficiently suppressed, so that the cold sensation can be maintained for a long time.

[0009] The basis weight of the base material is 20~1000 g / m 2 and the cold-sensation gel is applied or sprayed on the surface of the base material. When applying the cold-sensation gel, the application amount is 20~500 g / m 2 and when spraying the cold-sensation gel, the spraying amount is 20~500 g / m 2 When enhancing the effect of sustainable cold sensation, the application amount or spraying amount can be adjusted according to the degree of the effect of sustainable cold sensation so as to increase the application amount or spraying amount. Thereby, the effect of sustainable cold sensation can be set according to the purpose of use.

Advantages of the Invention

[0010] According to the present invention, by allowing the cold-sensation gel to penetrate into the base material which is a nonwoven fabric, compared with the case of applying the cold-sensation gel on the surface, the effect of sustainable cold sensation can be increased, and a cold-sensation sustainable nonwoven fabric suitable for being arranged inside the futon can be realized.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0012] An embodiment of the persistent cooling nonwoven fabric according to the present invention will be described with reference to the drawings. As shown in FIG. 1, the persistent cooling nonwoven fabric 1 is disposed and used inside a covering. The covering is a mat 2, which is composed of a surface fabric 3, a cushioning material 4, and a back fabric 5. As the surface fabric 3 and the back fabric 5, woven fabrics or knitted fabrics such as chemical fibers, natural fibers, and nonwoven fabrics are used, and as the cushioning material 4, polyurethane foam or batting is used.

[0013] Then, they are stacked in the order of the surface fabric 3, the cushioning material 4, and the back fabric 5, and the persistent cooling nonwoven fabric 1 is disposed between the surface fabric 3 and the cushioning material 4. Piping 6 is provided on the outer peripheral edge of the mat 2, and further quilting 7 is performed. Note that bonding may be performed instead of the quilting 7. Also, the outer peripheral edge of the covering 2 is not limited to the piping 6, and may be a hemmed or bonded and cut hemless one.

[0014] The continuous cold-sensation non-woven fabric 1 is formed by applying a cold-sensation gel 11 to the entire surface of a non-woven fabric base material 10 made of synthetic fibers such as polypropylene and polyester, so that the cold-sensation gel 11 penetrates into the base material 10. The cold-sensation gel 11 contains a phase-change material, a cold-sensation material, and a urethane elastomer composite material for exerting the effect of continuous cold-sensation, and is a mixture of microcapsules encapsulating the phase-change material in the gel and the cold-sensation material. As the gel, xanthan gum, agar, pectin, mannan, etc. are used. The component ratio of the phase-change material and the cold-sensation material in the cold-sensation gel 11 is such that the phase-change material is 28% and the cold-sensation material is 72%.

[0015] The phase-change material is a substance that changes between a liquid phase and a solid phase depending on temperature, i.e., a so-called PCM (Phase Change Material), and is a cooling medium. The phase-change material cools the object by absorbing the heat from the object as latent heat of fusion and changing from a solid phase to a liquid phase. Here, the phase-change material solidifies at normal temperature. Specifically, the freezing point of the phase-change material is set to 0°C to 35°C. Preferably, the freezing point of the phase-change material is set to 5°C to 30°C.

[0016] For example, the phase-change material contains paraffin or aliphatic hydrocarbons (or aliphatic saturated hydrocarbons). As the paraffin or aliphatic hydrocarbon, it contains at least one of tetradecane (C 14 H 30 ), hexadecane (C 16 H 34 ), and octadecane (C 18 H 38 ). Also, the phase-change material is tetradecane (C 14 H 30 ), hexadecane (C 16 H 34 ), and octadecane (C 18 H 38It may include all of ). Further, in addition to paraffin or aliphatic hydrocarbons, the phase change material may further include a super absorbent polymer (SAP), water, aroma, graphite, or the like. As an example, the phase change material may include paraffin, aliphatic compounds, organic substances, and minerals.

[0017] The cold feeling material is a water-absorbing resin such as sodium polyacrylate, menthol, PCM, camphor, etc., and a cold feeling can be obtained when it comes into contact with the sustainable cold feeling non-woven fabric.

[0018] The urethane elastomer composite material is a material obtained by polymerizing polyurethane and diphenylmethane diisocyanate (MDI), acts as a microencapsulating agent for forming a microcapsule coating of the phase change material, and exerts the effect of sustainable cold feeling by microencapsulating the phase change material.

[0019] The cold feeling gel 11 is applied to the entire surface of the base material 10. As a method of applying it to the entire surface, coating or spraying is used. The basis weight of the base material 10 which is a non-woven fabric is 20~1000 g / m 2 , preferably 100~200 g / m 2 is used. When applying the cold feeling gel 11 with a roller, the coating amount is 20~500 g / m 2 , preferably 30~500 g / m 2 is used. When spraying the cold feeling gel 11 with a spray gun, the spraying amount is 20~500 g / m 2 , preferably 80~300 g / m 2 is used.

[0020] As shown in FIG. 2, when the basis weight of the base material 10 is small (the thickness of the base material 10 is thin), the cold feeling gel 11 applied from the surface penetrates to the back surface. As shown in FIG. 3, when the basis weight of the base material 10 is large (the thickness of the base material 10 is thick), the cold feeling gel 11 applied from the surface penetrates to the middle in the thickness direction of the base material 10.

[0021] As the cooling gel 10 penetrates, the base material 11 is colored. When it penetrates to the back surface, both the front and back surfaces are colored, and the durable cooling non-woven fabric 1 can be used regardless of the front-back relationship. When it has penetrated to the middle, the front surface is colored, but the back surface remains the color of the base material, and the front surface can be recognized immediately. Even when touched by hand, the front surface can be recognized, and a cooling sensation can be obtained on the front surface, but only a slight cooling sensation can be obtained on the back surface, and the cooling sensation is not as strong as that on the front surface.

[0022] Here, the coating amount or injection amount can be adjusted according to the degree of the effect of the durable cooling. Even with the same basis weight, when an ordinary durable cooling effect is sufficient, for example, it is set to 120 g / m 2 and when the effect of the durable cooling is to be enhanced, for example, it is set to 150 g / m 2 and the coating amount or injection amount is adjusted to be increased. Thereby, the effect of the durable cooling can be set by adjusting the coating amount or injection amount according to the purpose of use.

[0023] As shown in FIG. 1, the durable cooling non-woven fabric 1 is arranged such that its front surface faces the surface fabric 3 of the rug 2. When a person lies on the rug 2, they do not directly touch the durable cooling non-woven fabric 1, but the body temperature of the person is transmitted to the durable cooling non-woven fabric 1 through the surface fabric 3. The cooling gel 11 is warmed, the phase change material melts and absorbs heat, and the cooling material also absorbs heat, thereby obtaining a cooling sensation. Since the base material 10 has good air permeability, the transmitted heat is diffused, and the temperature rise of the cooling gel 11 can be efficiently suppressed, and the cooling sensation can be maintained for a long time.

[0024] As another usage form of the above-mentioned durable cooling non-woven fabric 1, as shown in FIG. 4, the durable cooling non-woven fabric 1 is arranged inside the poultice pad 20. The poultice pad 20 is composed of a surface fabric 21, a cushioning material 22, and a back fabric 23. The surface fabric 21, the cushioning material 22, and the back fabric 23 are laminated, and the durable cooling non-woven fabric 1 is arranged between the surface fabric 21 and the cushioning material 22. Piping 24 is provided at the outer peripheral edge of the poultice pad 20, and further quilting 25 is performed. As shown in FIG. 5, the poultice pad 20 is placed on the futon 26 and used.

[0025] Also, as another usage form, as shown in FIG. 6, the persistent cold-sensation nonwoven fabric 1 is disposed inside the pillow pad 30. The configuration of the pillow pad 30 is the same as that of the floor mat pad 20 and is used by placing it on the pillow 31. When the body is placed on the floor mat pad 20 or the pillow pad 30, a cold sensation can be continuously obtained by heat absorption by the phase change material or heat absorption by the cold-sensation material.

[0026] Note that the present invention is not limited to the above-described embodiments, and of course, many modifications and changes can be made to the above-described embodiments within the scope of the present invention. As a floor covering using the persistent cold-sensation nonwoven fabric 1, it is applicable to various floor coverings such as cushions, mattresses, and multi-covers (a single piece of cloth sewn on four sides) on which the body can be placed.

Explanation of Reference Numerals

[0027] 1 Persistent cold-sensation nonwoven fabric 2 Rug 3 Surface fabric 4 Cushioning material 5 Back fabric 10 Base material 11 Cold-sensation gel 20 Floor mat pad 30 Pillow pad

Claims

1. This sustained cool sensation nonwoven fabric provides a sustained cool sensation, and is characterized in that it is formed by a cooling sensation gel penetrating from the entire surface of a base material made of synthetic fibers, and is placed inside a rug.

2. 2. The sustained cooling nonwoven fabric according to claim 1, wherein the cooling gel contains a urethane elastomer composite material, a phase change material, and a cooling material for exerting a sustained cooling effect.

3. The weight of the substrate is 20 to 1000 g / m ２ The cooling gel is applied or sprayed onto the surface of the substrate, and when the cooling gel is applied, the amount of application is 20 to 500 g / m ２ When spraying cooling gel, the spray amount is 20 to 500 g / m ２ The nonwoven fabric for sustained cool sensation according to claim 1 or 2, characterized in that the application amount or spray amount can be adjusted according to the level of the effect of sustained cool sensation so that the application amount or spray amount can be increased when the effect of sustained cool sensation is to be enhanced.

4. 4. The sustained cool sensation nonwoven fabric according to claim 3, wherein the covering is any one of a rug, a mat, a cushion, a mattress, a pillow, a mattress pad, and a pillow pad.

5. 4. A carpet comprising a surface fabric, a cushioning material and a backing fabric, in that order, and the continuous cooling nonwoven fabric according to claim 3 disposed between the surface fabric and the cushioning material.

Images