Cooling fabric, textile product having same, and method for manufacturing cooling fabric

Abstract

To provide a cold sensing fabric capable of retaining a cold sensing action longer, to provide a textile having the same, and to provide a manufacturing method of the cold sensing fabric.SOLUTION: A cold sensing fabric has a fabric comprising a woven fabric or a nonwoven fabric, and a cold sensing material layer 14 applied to one surface or both surfaces of the fabric. The cold sensing material layer 14 contains micro capsules containing a phase transfer substance having a melting point of 20-39, a contact cold sensing material, and an organic binder. The contact cold sensing material contains at least one kind selected from a gel-like substance and a silicone resin, and does not contain a water-absorbing resin selected from sodium polyacrylate, methyl cellulose, ethyl cellulose, cellulose propylene graft copolymer, and starch acrylic acid graft copolymer. The organic binder contains at least one kind selected from an acryl resin and a polyurethane resin.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cooling fabric having a cooling material layer containing a phase transition substance applied thereto, a textile product having the same, and a method for producing the cooling fabric. [Background technology]

[0002] When the body comes into contact with fabric, a cool sensation is felt because heat is transferred from the skin to the fabric. The greater the amount of heat transferred, the greater the cool sensation felt.

[0003] One material that gives a cooling sensation is made by attaching microcapsules (called "PCM") containing a phase transition material to fibers. Phase transition materials undergo an endothermic reaction when they change from a solid state to a liquid state, so when the phase transition material in the microcapsules is heated by body heat and melts, an endothermic reaction occurs, causing heat to transfer from the skin to the fabric, giving a cooling sensation.

[0004] For example, the following Patent Document 1 describes a material that gives the above-mentioned cool sensation, which has a cool-to-the-touch evaluation value (Q-max) of 0.2 W / cm 2 The document describes a fiber laminate comprising a front fabric made of the above-mentioned cloth, a phase transition substance-containing sheet arranged on the back side of the front fabric, the phase transition substance-containing sheet containing microcapsules encapsulating a phase transition substance having a melting point of 20 to 37° C., a padding layer arranged on the back side of the phase transition substance-containing sheet, and a back fabric made of cloth arranged on the back side of the padding layer. The document also describes that the padding layer is preferably made of a relatively thick material having cushioning properties, such as nylon fiber or polyester fiber. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3185616 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0006] According to the above-mentioned textile laminate, when the textile laminate comes into contact with the body, such as during sleep, the phase transition material in the microcapsules is warmed by body heat and melts, causing an endothermic reaction, which transfers heat from the skin to the fabric, providing a cooling sensation. Even if the phase transition material melts due to contact with the body and the cooling sensation decreases, when the contact position with the body changes due to turning over in bed, etc., and the body is no longer in contact with the material, the material quickly cools and solidifies, making it possible to cause an endothermic reaction again the next time the material comes into contact with the body.

[0007] However, the cooling sensation provided by the phase transition material disappears when the phase transition material is completely dissolved upon contact with the body, and therefore, there is a drawback in that it is difficult to obtain a sustained cooling sensation.

[0008] Therefore, an object of the present invention is to provide a cooling fabric capable of maintaining a cooling effect for a longer period of time, a textile product having the same, and a method for producing the cooling fabric. [Means for solving the problem]

[0009] In order to achieve the above object, the cooling fabric of the present invention is a cooling fabric having a fabric made of a woven fabric or a nonwoven fabric and a cooling material layer applied to one or both sides of the fabric, The cooling sensation material layer contains microcapsules containing a phase transition material having a melting point of 20 to 39°C, a contact cooling sensation material, and an organic binder, The cooling sensation material is a gel-like material. Quality and does not contain a water-absorbent resin selected from sodium polyacrylate, methyl cellulose, ethyl cellulose, cellulose-propylene graft copolymer, and starch-acrylic acid graft copolymer; The organic binder contains at least one selected from an acrylic resin and a polyurethane resin. death, The gel-like substance is selected from the group consisting of xanthan gum, agar, and pectin. It is characterized by the above.

[0010] According to the cooling fabric of the present invention, in addition to the microcapsules containing a phase transition material having a melting point of 20 to 39°C, a material containing at least one contact cooling material selected from a gel-like material and a silicone resin is used as the cooling material layer, so that when the body comes into contact with the material, both heat absorption due to dissolution of the phase transition material contained in the microcapsules and heat absorption by the contact cooling material act. In addition, the heat absorption due to dissolution of the phase transition material contained in the microcapsules acts not only on the body but also directly on the contact cooling material present in the cooling material layer, so that the temperature rise of the contact cooling material can be effectively suppressed and the duration of the cooling sensation can be extended. In addition, by using an organic binder containing at least one selected from an acrylic resin and a polyurethane resin, the cooling material layer is less likely to peel off, and a cooling fabric with excellent washability can be obtained.

[0011] In the cooling fabric of the present invention, the water-absorbent resin is preferably selected from sodium polyacrylate, methylcellulose, ethylcellulose, cellulose-propylene graft copolymer, and starch-acrylic acid graft copolymer, the gel-like substance is preferably selected from xanthan gum, agar, and pectin, and the silicone resin is preferably selected from thermally conductive silicone resin and methylvinylpolysiloxane, thereby making it possible to more effectively obtain the cooling sensation of the contact cooling material.

[0012] In addition, in the cooling sensation fabric of the present invention, it is preferable that the cooling sensation material layer further contains at least one selected from a deodorant, a fabric softener, and an anti-mold agent, thereby enhancing the deodorant effect, flexibility, and anti-mold effect of the fabric.

[0013] In addition, in the cooling fabric of the present invention, the fabric is made of a woven fabric, and the cooling material layer has a thickness of 5 to 200 g / m 2 It is preferable that the amount of the coating material is 100% by weight, and thereby a cooling fabric suitable as a surface fabric having a cooling effect can be provided.

[0014] In addition, in the cooling fabric of the present invention, the fabric is made of a nonwoven fabric, and the cooling material layer has a thickness of 5 to 300 g / m 2 It is preferable that the amount of the coating material is 100% by weight, thereby providing a cooling fabric suitable for placement on the inside of the outer fabric.

[0015] On the other hand, the textile product of the present invention is characterized by having any one of the cooling fabrics described above.

[0016] According to the textile product of the present invention, by having any one of the above cooling fabrics, the cooling effect can be sustained for a long time when the textile product comes into contact with the body.

[0017] The textile product of the present invention is preferably one selected from bedding covers, sheets, futons, mattress pads, pillows, rugs, cushions, sofa covers, towels, curtains, hats, collars, shoe sole sheets, socks, headbands, wrist wraps, chair seats, chair covers and clothing, thereby imparting a long-lasting cooling sensation to each textile product.

[0018] In one embodiment of the textile product of the present invention, the cooling sensation fabric is used as the outer fabric of the textile product, and the cooling sensation material layer is preferably applied to the back surface of the outer fabric, whereby the cooling sensation effect of the cooling sensation material layer can be directly imparted to the outer fabric that comes into contact with the body, thereby enhancing the cooling sensation effect.

[0019] In another aspect of the textile product of the present invention, the cooling sensation fabric is preferably disposed inside the outer fabric of the textile product, and the cooling sensation material layer is applied to the surface in contact with the outer fabric, whereby the cooling sensation fabric is covered by the outer fabric, and therefore even if a relatively large amount of the cooling sensation material layer is applied to the cooling sensation fabric, it is possible to suppress the phase transition material from seeping out to the surface.

[0020] The method for producing the cooling fabric of the present invention includes a coating step of coating one or both sides of a fabric made of a woven or nonwoven fabric with a mixed liquid containing a microcapsule containing a phase transition substance having a melting point of 20 to 39°C, a contact cooling material, and an organic binder; and a drying step of drying the applied mixture to form a cooling sensation material layer attached to the fabric, The cooling sensation material is a gel-like material. Quality and does not contain a water-absorbent resin selected from sodium polyacrylate, methyl cellulose, ethyl cellulose, cellulose-propylene graft copolymer, and starch-acrylic acid graft copolymer; The organic binder contains at least one selected from an acrylic resin and a polyurethane resin. death, The gel-like substance is selected from the group consisting of xanthan gum, agar, and pectin. It is characterized by the above.

[0021] According to the method for producing the cooling sensation fabric of the present invention, a cooling sensation fabric having excellent durability of the cooling sensation effect can be obtained by applying a mixed liquid containing microcapsules containing a phase transition material having a melting point of 20 to 39°C, a contact cooling sensation material, and an organic binder to form a cooling sensation material layer. In addition, by using an organic binder containing at least one selected from acrylic resin and polyurethane resin, a cooling sensation fabric having excellent washing resistance can be obtained.

[0022] In the method for producing a cooling sensation fabric of the present invention, the mixed liquid preferably contains 10 to 90% by mass of the microcapsules, 1 to 50% by mass of the contact cooling sensation material, and 8 to 89% by mass of the organic binder, thereby making it possible to appropriately apply a cooling sensation material layer to the fabric and to form a cooling sensation material layer having excellent cooling sensation effect.

[0023] In the method for producing the cooling fabric of the present invention, the coating step is carried out such that the coating amount of the cooling material layer after the drying step is 5 to 300 g / m 2 It is preferable to coat the mixed liquid in an amount that satisfies the above-mentioned requirement, thereby forming a cooling sensation material layer that is difficult to peel off and has an excellent cooling sensation effect. Effect of the Invention

[0024] According to the present invention, the cooling sensation layer is made of a cooling fabric containing a contact cooling material consisting of at least one selected from water-absorbent resin, gel-like substance, and silicone resin in addition to microcapsules containing a phase transition material, so that the duration of the cooling sensation can be extended. Also, by using an organic binder containing at least one selected from acrylic resin and polyurethane resin, the cooling sensation layer is less likely to peel off, and has excellent washability. [Brief description of the drawings]

[0025] [Figure 1] FIG. 1 is a partial cross-sectional view showing an embodiment in which the present invention is applied to a mattress pad. [Diagram 2] FIG. 11 is a partial cross-sectional view showing another embodiment in which the present invention is applied to a mattress pad. [Diagram 3] FIG. 11 is a partial cross-sectional view showing still another embodiment in which the present invention is applied to a mattress pad. [Figure 4] FIG. 1 is a partial cross-sectional view showing an embodiment in which the present invention is applied to a duvet cover. [Diagram 5] FIG. 1 is a partial cross-sectional view showing an embodiment in which the present invention is applied to a futon. [Figure 6] FIG. 2 is a plan view showing the wire netting and specimens used in a test to evaluate the cool sensation duration of pillow covers of the present invention and comparative examples. [Figure 7] FIG. 2 is an explanatory diagram showing a test device used in the test. [Figure 8] 1 is a chart showing a schedule of the heat load process carried out in the test. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] The cooling sensation fabric of the present invention comprises a fabric made of a woven or nonwoven fabric and a cooling sensation material layer applied to one or both sides of the fabric.

[0027] Examples of the woven fabric include natural fibers such as cotton, hemp, silk, and wool, chemical fibers such as rayon, nylon, polyethylene, and polyester, and mixtures thereof. Examples of the types of woven fabric include knits and woven fabrics.

[0028] Examples of the nonwoven fabric include natural fibers such as cotton, hemp, silk, and wool, chemical fibers such as rayon, nylon, polyethylene, and polyester, and mixtures thereof. The nonwoven fabric can be manufactured by known methods such as a dry method, a wet method, a spunbond method, a spunlace method, a thermal bond method, and a needle punch method.

[0029] The weight of the fabric made of woven or nonwoven fabric is 10 to 500 g / m 2 It is preferable that the thickness is 20 to 300 g / m 2 It is more preferable that:

[0030] The cooling sensation material layer contains microcapsules containing a phase transition material having a melting point of 20 to 39° C., a contact cooling sensation material, and an organic binder.

[0031] The phase transition material is, for example, a mixture of alkanes such as n-heptadecane, n-octadecane, nonadecane, and n-eicosane, and has a melting point of 20 to 39° C. The phase transition material acts to slow down the rise in the ambient temperature by absorbing heat when the external temperature exceeds the melting enthalpy value.

[0032] The phase transition material is in the form of a solid or emulsion, and is enclosed in a microcapsule, and is used as a cooling sensation material in the form of a solid or emulsion. For example, melamine resin, phenolic resin, polystyrene, acrylic resin, etc. are used as the wall material of the microcapsule, but acrylic resin such as polymethylmethacrylate resin is preferably used because it has a high effect of suppressing the exudation of the phase transition material and does not generate formaldehyde, etc.

[0033] The cool-to-the-touch material used is one containing at least one selected from the group consisting of water-absorbent resin, gel-like substance, and silicone resin.

[0034] As the water-absorbent resin, for example, sodium polyacrylate, methyl cellulose, ethyl cellulose, cellulose-propylene graft copolymer, starch-acrylic acid graft copolymer, and the like are preferably used.

[0035] As the gel-like substance, for example, xanthan gum, agar, pectin, etc. are preferably used.

[0036] As the silicone resin, for example, a thermally conductive silicone resin, methylvinylpolysiloxane, or the like is preferably used.

[0037] As the organic binder, at least one selected from acrylic resin and polyurethane resin is preferably used, which makes it possible to prevent the cooling sensation material layer from peeling off from the fabric and improves the washing resistance.

[0038] In the cooling fabric of the present invention, the cooling material layer preferably further contains at least one selected from a deodorant, a softener, and an anti-mold agent. As the deodorant, for example, silicates can be used. As the softener, for example, organic silicones can be used. As the anti-mold agent, for example, organic anti-mold agents such as biphenyl and OPP (o-phenylphenol), inorganic anti-mold agents such as ammonium persulfate, calcium phosphate, and silver ion compounds, and natural anti-mold agents such as mustard extract and mugwort can be used.

[0039] The method for producing the cooling sensation fabric of the present invention includes a coating step of coating one or both sides of a fabric made of a woven or nonwoven fabric with a mixed liquid containing microcapsules containing a phase transition substance having a melting point of 20 to 39°C, a contact cooling sensation material, and an organic binder, and a drying step of drying the applied mixed liquid to form a cooling sensation material layer attached to the fabric.

[0040] The mixture contains the microcapsules in an amount of preferably 10 to 90% by mass, more preferably 20 to 50% by mass, the cool-to-touch material in an amount of preferably 1 to 50% by mass, more preferably 1 to 20% by mass, and the organic binder in an amount of preferably 8 to 89% by mass, more preferably 30 to 50% by mass.

[0041] Furthermore, the mixed liquid preferably contains 1 to 5% by mass of the deodorant, 1 to 5% by mass of the softener, and 0.5 to 2% by mass of the antifungal agent.

[0042] The method for preparing the mixture is not particularly limited, but for example, the following steps can be adopted. (1) Place the organic binder in an adjusting bucket and stir at a speed of about 300 to 500 revolutions per minute. (2) Slowly place the microcapsules containing the phase transition material into the mixing bucket and stir for about 10 minutes. (3) Place the cooling sensation material in the mixing bucket and stir for about 5 minutes. (4) Add the deodorizer, anti-mold agent, and fabric softener to the mixing bucket and stir for about 3 minutes. (5) If necessary, add appropriate amounts of water, thickeners, and anti-clogging agents.

[0043] The mixed liquid can be applied by a method such as printing, coating, or injection molding.

[0044] Printing can be performed, for example, using a silk screen printer. The printing area of ​​the mixed liquid relative to the fabric surface of the material can be, for example, 20 to 100%. The hole size (screen mesh number) of the silk screen is preferably 20 to 300.

[0045] The amount of the mixture applied is the dry weight after the subsequent drying process. When using woven fabric as the substrate, the amount is 5 to 200 g / m 2 It is preferable to apply the coating in an amount of 5 to 120 g / m 2 It is more preferable to apply the coating agent in an amount of 100 to 200 μg / g. This makes it possible to provide a cooling fabric suitable as a surface fabric having a cooling effect.

[0046] In addition, when using nonwoven fabric as the material, the weight is 5 to 300 g / m 2 It is preferable to apply the coating in an amount of 5 to 200 g / m 2 It is more preferable to apply the cooling fabric in an amount of 100% by weight. This makes it possible to provide a cooling fabric that is suitable for placement on the inside of the outer fabric.

[0047] After the mixture is applied to the cloth surface of the fabric, it is dried, for example, by hot air drying, hot pressing, ultrasonic waves, steam drying, far-infrared heating, vacuum drying heating, etc., preferably at 50 to 180° C. As a result, the microcapsules and the contact cooling material are bound via the organic binder to form a cooling material layer bonded to the fabric surface.

[0048] When the cooling fabric of the present invention thus obtained comes into contact with the body, both heat absorption due to the dissolution of the phase transition material contained in the microcapsules and heat absorption due to the contact cooling material act on the body. In addition, the heat absorption due to the dissolution of the phase transition material contained in the microcapsules acts not only on the body but also directly on the contact cooling material present in the cooling material layer, so that the temperature rise of the contact cooling material can be effectively suppressed and the duration of the cooling sensation can be extended. In addition, by using an organic binder containing at least one selected from acrylic resin and polyurethane resin, the cooling material layer is less likely to peel off, and a cooling fabric with excellent washability can be obtained.

[0049] Next, the textile product of the present invention using the cooling fabric will be described. Examples of the textile product of the present invention include bedding covers, sheets, futons, mattress pads, pillows, rugs, cushions, sofa covers, towels, curtains, hats, collars, shoe sole sheets, socks, headbands, wrist wraps, chair seats, chair covers, and clothing. As a layer structure for disposing the cooling fabric on these textile products, for example, the structures shown in Figures 1 to 5 can be adopted.

[0050] Fig. 1 shows an embodiment applied to a bed pad, and this bed pad 10 has a structure in which a padding 13 is placed between a front fabric 11 and a back fabric 12, and each layer is integrated by a method such as quilting or bonding. A cooling sensation material layer 14 is formed on the back surface of the front fabric 11, and this front fabric 11 constitutes the cooling sensation fabric of the present invention. The front fabric 11 is composed of a woven fabric. According to this bed pad 10, since the cooling sensation material layer 14 is formed on the back surface of the front fabric 11, heat is easily transferred to the cooling sensation material layer 14 through the front fabric 11, and the cooling sensation effect can be enhanced.

[0051] Fig. 2 shows another embodiment applied to a bed pad. In the following embodiments, the same reference numerals are used for substantially the same parts, and their explanation will be omitted. This bed pad 20 has almost the same structure as the embodiment in Fig. 1, but differs from the embodiment in Fig. 1 in that the cooling material layer 14 is formed on the surface side of the outer cloth 11. In this bed pad 20, the cooling material layer 14 is formed on the surface side of the outer cloth 11, and the body comes into direct contact with the cooling material layer 14, so that the cooling effect can be further enhanced.

[0052] Fig. 3 shows yet another embodiment applied to a mattress pad. In this mattress pad 30, a nonwoven fabric 15 is arranged inside a surface fabric 11, and a cooling material layer 14 is formed on the surface of this nonwoven fabric 15 facing the surface fabric 11. Then, a filling 13 is arranged between the nonwoven fabric 15 and the back fabric 12. In this mattress pad 30, when the body comes into contact with the surface of the surface fabric 11, heat is transferred through the surface fabric 11 to the cooling material layer 14 formed on the surface of the nonwoven fabric 15 facing the surface fabric 11, and a cooling effect can be obtained. And, by forming the cooling material layer 14 on the nonwoven fabric 15 arranged inside the surface fabric 11, it is possible to obtain a cooling effect without impairing the feel of the surface fabric 11. Even if a relatively large amount of material layer 14 is applied, the phase transition material can be prevented from seeping out onto the surface of outer fabric 11.

[0053] Fig. 4 shows another embodiment applied to a duvet cover. In this duvet cover 40, a front fabric 11 and a back fabric 12 are formed into a bag shape, and a cooling material layer 14 is formed on the inside of the back fabric 12. By wrapping a duvet in this duvet cover 40 and using it, when the body comes into contact with the surface of the back fabric 12 of the duvet cover 40, heat is transferred to the cooling material layer 14 through the back fabric 12, providing a cooling effect.

[0054] Fig. 5 shows another embodiment applied to a futon. In this futon 50, a filling 13 is placed between a front cloth 11 and a back cloth 12. A cooling material layer 14 is formed on the inner surface of the back cloth 12. When the human body comes into contact with the back cloth 12 of the futon 50 directly or through a futon cover (not shown), heat is transferred to the cooling material layer 14 through the back cloth 12 (or the back cloth of the futon cover and the back cloth 12 of the futon 50), resulting in a cooling effect. EXAMPLES

[0055] <Test Example 1> [Example 1] Cotton fabric (60S*40S, 172*120 thread count) was used as the fabric. On one side of the fabric, a mixture of 34% by mass of microcapsules (PCM) containing a phase transition material with a melting point of 30°C, 15% by mass of cellulose propylene graft copolymer (water-absorbent resin, contact cooling material), 45% by mass of polyurethane binder, 3% by mass of deodorant, 2% by mass of fabric softener, 1% by mass of mildew inhibitor, and an appropriate amount of water and thickener was added. The mixture was screen-printed and then dried to form a cooling material layer. The coating area of ​​the cooling material layer was 50%, and the coating amount was 20g / m2. 2 The drying temperature was 150° C. for 1 to 3 minutes. In this way, the cooling fabric of Example 1 was obtained.

[0056] [Comparative Example 1] A cooling fabric of Comparative Example 1 was obtained in the same manner as in Example 1, except that a mixed liquid was applied without adding cellulose propylene graft copolymer (water-absorbent resin) as a contact cooling material.

[0057] The cool-touch evaluation value (Q-max) was measured for the cool-touch fabrics of Example 1 and Comparative Example 1. Here, the cool-touch evaluation value (Q-max) is a numerical value obtained by expressing the amount of heat transferred at the moment a person touches something, and the larger the value, the stronger the cool sensation felt. In the present invention, the cool-touch evaluation value (Q-max) means a value obtained by measuring the amount of heat transferred when a sample is brought into contact with a sensor with a temperature difference of 20°C in an environment of 20°C. The results are shown in Table 1 below.

[0058] [Table 1]

[0059] <Test Example 2> [Example 2] The fabric is rayon nonwoven fabric (weight 50g / m 2) was used, and a mixture of 30% by mass of microcapsules (PCM) containing a phase transition material with a melting point of 28°C, 15% by mass of a mixture of gel and polyacrylic acid (water-absorbent resin, contact cooling material), 50% by mass of polyurethane binder, 3% by mass of deodorant, 2% by mass of fabric softener, 1% by mass of anti-mold agent, and an appropriate amount of water and thickener was added to one side of the fabric. The mixture was applied using a coating processing device and dried to form a cooling material layer. The application area of ​​the cooling material layer was 50%, and the application amount was 20 g / m. 2 The drying temperature was 150° C. for 1 to 3 minutes. In this way, the cooling fabric of Example 2 was obtained.

[0060] [Comparative Example 2] In Example 2, a rayon nonwoven fabric (basis weight 50 g / m) that does not form a cooling material layer 2 ) was used as Comparative Example 2. Using the fabrics of Example 2 and Comparative Example 2, the sustained cool sensation was tested by the following method.

[0061] The fabrics of Example 2 and Comparative Example 2 were placed side by side on a sample stage inclined at 45 degrees, and a 90°C hot plate was set 15 cm in front of them in parallel. The surface temperatures of the samples were then measured using a thermography device after 1, 2, 4, 6, 8, and 10 minutes. The test environment was a room temperature of 20±2°C and a humidity of 65±4% RH. The results are shown in Table 2 below.

[0062] [Table 2]

[0063] As shown in Table 2, the fabric with the cooling material layer formed on it suppressed the rise in surface temperature, and even after 10 minutes, the surface temperature was maintained 2.0°C lower than that of the simple fabric.

[0064] <Test Example 3> [Example 3] A cooling fabric was prepared by forming a cooling material layer on a rayon nonwoven fabric in the same manner as in Example 2. This cooling fabric was used to manufacture a pillowcase having the following layer structure. 1st layer: Outer fabric: 65% nylon, 30% rayon, 5% polyurethane 2nd layer: Cooling material layer + rayon nonwoven fabric 3rd layer: absorbent padding (100% polyester) 4th layer: polyester knit fabric. [Comparative Example 3] A commercially available pillowcase (manufactured by Company N) was used as Comparative Example 3. This pillowcase had the following layer structure. 1st layer: Outer fabric: 100% nylon 2nd layer: polyethylene nonwoven fabric 3rd layer: Filling (80% polyester, 20% acrylate) 4th layer: sinker pile (pile: 80% polyester + 20% cotton; ground yarn: 100% polyester).

[0065] [Comparative Example 4] A commercially available pillowcase (manufactured by Company I) was used as Comparative Example 4. This pillowcase had the following layer structure. 1st layer: Outer fabric: Composite fiber (PE 60% + Nylon 40%) 2nd layer: polyethylene nonwoven fabric 3rd layer: Filling (30% rayon + 70% polyester) 4th layer: Polymesh (100% polyester).

[0066] Using pieces of each pillowcase from Example 3, Comparative Example 3, and Comparative Example 4, the time it took for the specimen surface temperature to reach the air temperature under heat load was measured.

[0067] Specifically, as shown in FIG. 6, a pillowcase (piece) 62 of Example 3, a pillowcase (piece) 63 of Comparative Example 3, and a pillowcase (piece) 64 of Comparative Example 4 were placed on a wire mesh 61, and a thermocouple 65 was installed in each of the pillowcases 62, 63, and 64.

[0068] 7, wire mesh 61 with pillowcases 62, 63, 64 placed thereon was placed on stand 66. A hot air generator 68 supported by a support 67 was installed so as to blow hot air onto stand 66. Furthermore, a thermography camera 70 supported by a tripod 69 was used to measure the surface temperatures of pillowcases 62, 63, 64 placed on wire mesh 61 of stand 66.

[0069] The distance of the hot air generator 68 was adjusted so that the temperature on the specimen surface was 36 to 37° C. The timing for applying a thermal load by blowing hot air onto the pillowcases 62, 63, and 64 using the hot air generator 68 was set as shown in FIG.

[0070] In this way, hot air was repeatedly blown for 5 minutes at 20 minute intervals, and the specimen surface temperature was measured using a thermocouple 65. The time from when the hot air was blown until the specimen surface temperature reached the air temperature was measured for each pillowcase 62, 63, 64.

[0071] The results are shown in Table 3 below.

[0072] [Table 3]

[0073] As shown in Table 3, the pillow cover 62 of Example 3, in which a cooling sensation material layer having the configuration of the present invention is provided on the second layer of rayon nonwoven fabric, takes a significantly longer time for the surface temperature of the sample to reach the air temperature than the commercially available pillow cover 63 of Comparative Example 3 and pillow cover 64 of Comparative Example 4, and it is clear that the cooling sensation retention effect is sustained for a long time.

[0074] [Example 4] Cotton fabric (60S*40S, 172*120 thread count) was used as the fabric. On one side of the fabric, a mixture of 34% by mass of microcapsules (PCM) containing a phase transition material with a melting point of 30°C, 15% by mass of cellulose propylene graft copolymer (water-absorbent resin, contact cooling material), 45% by mass of polyurethane binder, 3% by mass of deodorant, 2% by mass of fabric softener, 1% by mass of mildew inhibitor, and an appropriate amount of water and thickener was added. The mixture was screen-printed and then dried to form a cooling material layer. The coating area of ​​the cooling material layer was 50%, and the coating amount was 20g / m2. 2 The drying temperature was 150° C. for 1 to 3 minutes. In this way, the cooling fabric of Example 4 was obtained.

[0075] This fabric also had the same cooling sensation performance as Example 1.

[0076] [Example 5] The fabric is rayon nonwoven fabric (weight 50g / m 2 ) was used, and a mixture of 30% by mass of microcapsules (PCM) containing a phase transition material with a melting point of 28°C, 15% by mass of a mixture of gel and polyacrylic acid (contact cooling material), 50% by mass of polyurethane binder, 3% by mass of deodorant, 2% by mass of fabric softener, 1% by mass of anti-mold agent, and an appropriate amount of water and thickener was added to one side of the fabric. The mixture was applied using a coating processing device and dried to form a cooling material layer. The application area of ​​the cooling material layer was 50%, and the application amount was 20 g / m. 2 The drying temperature was 150° C. for 1 to 3 minutes. In this way, the cooling fabric of Example 5 was obtained.

[0077] This fabric also had the same cooling sensation performance as Example 2.

[0078] [Example 6] The fabric is a knitted jersey fabric (200g / m2) made of 50% nylon, 45% rayon, and 5% polyurethane fibers. 2) was used, and a mixture of 40% by mass of microcapsules (PCM) containing a phase transition material with a melting point of 28°C, 10% by mass of methylvinylpolysiloxane (contact cooling material), 44% by mass of polyurethane binder, 2% by mass of deodorant, 2% by mass of fabric softener, 2% by mass of mildew inhibitor, and an appropriate amount of water and thickener was added to one side of the fabric, which was then coated with a printing device and dried to form a cooling material layer. The coating area of ​​the cooling material layer was 60%, and the coating amount was 30 g / m. 2 In this way, the cooling fabric of Example 6 was obtained.

[0079] This fabric also had the same cooling sensation performance as Example 2. [Explanation of symbols]

[0080] 10, 20, 30 Bed Pads 11 Outer fabric 12 Lining 13 Filling 14 Cooling material layer 15 Nonwoven fabric

Claims

1. A cooling fabric having a fabric made of a woven or nonwoven fabric and a cooling material layer applied to one or both sides of the fabric, The cooling sensation material layer contains microcapsules containing a phase transition material having a melting point of 20 to 39°C, a contact cooling sensation material, and an organic binder; The cooling-touch material contains a gel-like substance and does not contain a water-absorbent resin selected from sodium polyacrylate, methyl cellulose, ethyl cellulose, cellulose-propylene graft copolymer, and starch-acrylic acid graft copolymer; The organic binder contains at least one selected from an acrylic resin and a polyurethane resin, The cooling dough is characterized in that the gel-like substance is selected from the group consisting of xanthan gum, agar, and pectin.

2. The cooling fabric according to claim 1 , wherein the cooling material layer further contains at least one selected from a deodorant, a fabric softener, and an anti-fungal agent.

3. The fabric is made of a woven fabric, and the cooling material layer has a thickness of 5 to 200 g / m 2 The cooling fabric according to claim 1 or 2, wherein the cooling fabric is applied in an amount of

4. The fabric is made of a nonwoven fabric, and the cooling material layer has a thickness of 5 to 300 g / m 2 The cooling fabric according to claim 1 or 2, wherein the cooling fabric is applied in an amount of

5. A textile product having the cooling fabric according to any one of claims 1 to 4.

6. The textile product according to claim 5, which is one selected from bedding covers, sheets, futons, mattress pads, pillows, rugs, cushions, sofa covers, towels, curtains, hats, collars, shoe sole sheets, socks, headbands, wrist wraps, chair seats, chair covers and clothing.

7. 7. The textile product according to claim 5 or 6, wherein the cooling fabric is used as a surface fabric of the textile product, and the cooling material layer is applied to a back surface of the surface fabric.

8. The textile product according to claim 5 or 6, wherein the cooling fabric is disposed inside a surface fabric of the textile product, and the cooling material layer is applied to a surface in contact with the surface fabric.

9. A coating step of coating one or both sides of a fabric made of a woven or nonwoven fabric with a mixed liquid containing microcapsules containing a phase transition material having a melting point of 20 to 39°C, a contact cooling material, and an organic binder; and a drying step of drying the applied mixture to form a cooling sensation material layer attached to the fabric, The cooling-touch material contains a gel-like substance and does not contain a water-absorbent resin selected from sodium polyacrylate, methyl cellulose, ethyl cellulose, cellulose-propylene graft copolymer, and starch-acrylic acid graft copolymer; The organic binder contains at least one selected from an acrylic resin and a polyurethane resin, The method for producing a cooling dough is characterized in that the gel-like substance is selected from the group consisting of xanthan gum, agar, and pectin.

10. The method for producing a cooling fabric according to claim 9, wherein the mixed liquid contains 10 to 90% by mass of the microcapsules, 1 to 50% by mass of the contact cooling material, and 8 to 89% by mass of the organic binder.

11. In the coating step, the coating amount of the cooling sensation material layer after the drying step is 5 to 300 g / m 2 The method for producing a cooling fabric according to claim 9 or 10, wherein the mixed liquid is applied in an amount such that

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