A quilt of multiple layers

Abstract

The present application relates to the weaving technical field, especially a quilt of multilayer structure, the quilt of multilayer structure includes a pair of side cloth and the filling layer being arranged between the side cloth;The filling layer is divided into multiple layers in the laminating direction, temperature adjusting cloth is arranged between the multiple layers, and the temperature adjusting cloth is attached with microcapsules containing phase change material through adhesive.The phase change material is preferably a multi-component material with different melting points to achieve temperature adjustment in different temperature ranges.Compared with the prior art, the present application sets temperature adjusting cloth inside the filling layer, so that the phase change material does not directly contact the human body, while ensuring softness, it realizes the buffer adjustment of temperature change: when the temperature rises, it absorbs heat and melts, inhibiting overheating;When the temperature decreases, it releases heat and solidifies, slowing down the temperature drop, so that the comfortable temperature can be maintained under different environmental conditions, and the use comfort and stability are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of weaving, and more specifically, to a multi-layered quilt. Background Technology

[0002] Bedding such as blankets, mattress pads, quilts, and mattresses typically consist of a pair of side panels and a filling layer between them. To ensure a comfortable sleep, these bedding items are expected to maintain a comfortable temperature inside the bed.

[0003] However, the temperature inside the bed is cold when you first get into bed, and sometimes it feels hot again after the bed warms up due to your body temperature. It also gets cold again in the morning when the outside temperature drops. Therefore, it is difficult to maintain a comfortable temperature all the time.

[0004] Prior art 1 discloses a multi-layered quilt for human or animal body contact, comprising: an outer fabric made of a fabric with a contact coldness evaluation value (Q-max) of 0.2 W / cm² or higher; a phase change material containing microcapsules encapsulating a phase change material with a melting point of 20~37°C disposed on the inner side of the outer fabric; a filling layer disposed on the inner side of the phase change material containing the sheet; and an inner fabric made of a fabric disposed on the inner side of the filling layer, the whole being fixed by quilting and / or bonding.

[0005] The purpose of the multi-layered quilt in Technique 1 is to provide an instant cooling sensation upon contact with the body. However, its function of maintaining a comfortable bed temperature regardless of the season has not been adequately studied.

[0006] Furthermore, prior art 2 discloses a bedding product characterized by having microcapsules containing phase change substances disposed on a fabric made of highly absorbent fibers. It also describes how, by simultaneously using phase change substances and highly absorbent fibers in a quilt, shortly after falling asleep, in high temperatures (summer), warmth can be felt through touch when the temperature is high, and in low temperatures (winter), warmth is felt through the adsorption heat generated by the adsorption of moisture evaporated from the body by the highly absorbent fibers.

[0007] However, Technology 2 only describes the form of bedding, which can be either a microcapsule containing a phase change substance directly coated on a highly absorbent fiber fabric used as a side cover of the bedding, or it can be provided as another piece of fabric on the opposite side of the fabric that is in contact with the body. Basically, only the part that is provided near the body is described.

[0008] As shown in Techniques 1 and 2, when fabric with microcapsules containing encapsulated phase change substances is placed near the body, although a cooling effect can be felt instantly, its effect on regulating body temperature when the environment changes is not sufficient. Furthermore, increasing the amount of microcapsules attached to the fabric leads to increased stiffness and a deterioration in tactile sensation due to its placement near the body.

[0009] Therefore, the purpose of this invention is to provide a multi-layered quilt with excellent body temperature regulation when the usage environment changes. Summary of the Invention

[0010] To achieve the above objectives, the multi-layered quilt of the present invention, in which a pair of side fabrics and a filling layer provided between the side fabrics are provided, is characterized in that the filling layer is formed in a lamination direction by dividing it into multiple layers, and a temperature regulating fabric containing microcapsules of phase change material attached by an adhesive is provided between the multiple filling layers.

[0011] In the multi-layered quilt of the present invention, the amount of microcapsules attached to the temperature regulating fabric can be 5~100g / m².

[0012] In the multilayer quilt of the present invention, the microcapsules may be a substance containing a first phase change substance with a melting point of 24~30℃ and a second phase change substance with a melting point of 32~38℃.

[0013] As one form of the multi-layered quilt structure of the present invention, the mixing ratio of the first phase change material and the second phase change material can be 70:30 to 90:10.

[0014] Furthermore, as another form of the quilt with the multi-layer structure of the present invention, the mixing ratio of the first phase change material and the second phase change material can be 30:70 to 10:90.

[0015] As one form of the multi-layered quilt of the present invention, the microcapsules can be attached to the temperature-regulating fabric in a striped pattern with a width of 0.5-5 mm and an interval of 0.5-5 mm by the adhesive.

[0016] As one form of the multi-layered quilt of the present invention, the temperature regulating fabric can be a fabric that has undergone roll calendering and softening treatment after the microcapsules are attached.

[0017] As one form of the multi-layered quilt of the present invention, at least one layer of the filling layer contains natural fibers selected from feathers, wool, silk floss, hemp, and cotton, and can be used as bedding.

[0018] As one form of the multi-layered quilt of the present invention, at least one layer of the filling layer contains moisture-absorbing and heat-generating fibers selected from acrylate, rayon, and cuprammonium fiber, and can be used as bedding.

[0019] The beneficial effects of the present invention are as follows: According to the present invention, since a temperature-regulating fabric containing microcapsules of phase change material is provided between the multiple filling layers by an adhesive, when the body comes into contact with the multi-layered quilt and the temperature of the filling layer rises, the phase change material melts and absorbs the heat of fusion, thereby preventing excessive heating and suppressing the stuffy feeling caused by the heat.

[0020] Furthermore, when the external temperature drops, causing the filling layer temperature to decrease, the phase change material solidifies, generating heat of solidification, thereby suppressing the temperature drop and maintaining a comfortable temperature. In this way, the temperature-regulating fabric easily maintains a comfortable temperature by suppressing temperature changes in the filling layer.

[0021] In addition, even if the amount of microcapsules attached to the temperature-regulating fabric is increased, the temperature-regulating fabric is not prone to deterioration of tactile feel because it is divided into multiple filling layers. Attached Figure Description

[0022] Figure 1 A cross-sectional view showing one embodiment of applying the multi-layered quilt structure of the present invention to a blanket.

[0023] Figure 2 This is a partially enlarged plan view showing the coating pattern of the microcapsules containing phase change substances on the temperature-regulating cloth in the same embodiment.

[0024] Figure 3 A cross-sectional view showing the application of the multi-layered quilt structure of the present invention to a blanket in other embodiments.

[0025] Figure 4 A cross-sectional view showing another embodiment of applying the multi-layered quilt structure of the present invention to a blanket.

[0026] Figure 5 The graph shows the test results for Experiment Example 1.

[0027] Figure 6 The chart shows the results of the experiment in Example 2.

[0028] Reference numerals: 10, 10a, 10b: Covering; 11: Outer side fabric; 12: Inner side fabric; 13a, 13b, 13c: Filling cotton; 14: Temperature regulating fabric; 15: Partition fabric; 16: Binding; 17: Base fabric; 18: Coated layer; 19, 21, 22: Quilting; 20: Middle fabric; 23: Connecting part; 31, 32: Laminate. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Figure 1 This is a cross-sectional view showing one embodiment of applying the multi-layered quilt structure of the present invention to a blanket.

[0032] The blanket 10 includes: an outer side fabric 11, an inner side fabric 12, two filling layers 13a and 13b disposed between the side fabrics 11 and 12 and divided into two layers, and a temperature regulating fabric 14 disposed between the two filling layers 13a and 13b. Furthermore, in this embodiment, the outer side fabric 11 refers to the side fabric disposed on the side away from the blanket (not shown in the figure), and the inner side fabric 12 refers to the side fabric disposed near the blanket.

[0033] In this embodiment of the cover 10, a partition fabric 15 is provided connecting the temperature regulating fabric 14 and the pair of side fabrics 11, 12. The filling layers 13a, 13b are filled in the spaces respectively enclosed by the temperature regulating fabric 14, the pair of side fabrics 11, 12, and the partition fabric 15. Furthermore, in this embodiment, the partition fabric 15 connected to the outer side fabric 11 is staggered from the partition fabric 15 connected to the inner side fabric 12. By using the partition fabric 15, the thinner portions of the outer filling layer 13a and the thinner portions of the inner filling layer 13b are staggered, thereby adjusting the thickness of the cover 10 to be as uniform as possible.

[0034] Around the outer side fabric 11 and the inner side fabric 12, an edge binding 16 is applied to the fabric ends with a twill tape or similar material to prevent fraying.

[0035] There are no special restrictions on the material of side fabrics 11 and 12; for example, polyester, cotton, rayon, etc. can be used.

[0036] The materials of the filling layers 13a and 13b are not particularly limited. For example, they can be natural fibers such as feathers, wool, silk floss, hemp, and cotton, or synthetic fibers such as polyester, acrylic ester, rayon, and cupro fiber.

[0037] To improve insulation, cotton containing natural fibers such as feathers, wool, and silk floss is preferred. Furthermore, cotton containing fibers with moisture-absorbing and heat-generating properties, such as acrylic fibers, rayon, and cupro fibers, is also preferred. Modified acrylic fibers or modified rayon fibers, modified to improve moisture absorption, are even more preferred as fibers with moisture-absorbing and heat-generating properties.

[0038] Temperature-regulating cotton containing microcapsules of phase change substances can also be used as the material for filling layers 13a and 13b. Examples of materials for the microcapsules containing phase change substances include lyocell fiber and polyester fiber. When using lyocell fiber, it is easy to incorporate microcapsules, and because it is a cellulose fiber, it also has moisture-wicking properties. Using polyester fiber provides quick-drying properties.

[0039] As fibers used for filling layers 13a and 13b, a blend of various types of fibers can be used. By appropriately adjusting the blending ratio, it is possible to combine the advantages of each fiber or suppress the increase in manufacturing costs. For example, cotton containing lyocell fibers and polyester fibers that have been blended with microcapsules containing phase change substances can be used.

[0040] Furthermore, the materials of the outer filling layer 13a and the inner filling layer 13b (on the side where it is used to touch the body) can be changed. For example, the outer filling layer 13a can be made of cotton containing natural fibers, and the inner filling layer 13b can be made of cotton containing moisture-absorbing and heat-generating fibers. In this case, when entering the quilt, the moisture emitted by the body will cause the moisture-absorbing and heat-generating fibers of the filling layer 13b to generate heat, thus accelerating the rise of the quilt temperature. When the outside temperature drops in the morning, the heat accumulated in the temperature-regulating fabric (described later) is released, and the outer filling layer 13a containing natural fibers can prevent this heat loss.

[0041] In this embodiment, feathers are used as the material for the filling layers 13a and 13b. Feathers have high heat retention and moisture absorption properties, thus making sleep comfortable. In addition, the feathers can be blown into the various spaces enclosed by the temperature regulating fabric 14, a pair of side fabrics 11 and 12, and the partition fabric 15 by known means.

[0042] Temperature-regulating fabric 14 is made of woven, knitted, or non-woven fabrics, with microcapsules containing phase change substances (PCMs) attached using an adhesive. PCMs are substances that change between a liquid and a solid phase depending on temperature. When the ambient temperature rises, PCMs absorb heat as latent heat of fusion and melt, thus inhibiting the temperature rise. Furthermore, when the ambient temperature decreases, they solidify and release heat of fusion, thus inhibiting the temperature drop. In this way, PCMs possess temperature-regulating capabilities.

[0043] As phase change substances, they can be hydrocarbons such as sodium sulfate decahydrate, calcium chloride hexahydrate, sodium carbonate decahydrate, paraffin, and wax. Paraffin or aliphatic hydrocarbons (or aliphatic saturated hydrocarbons) are particularly preferred; for example, tetradecane (C4) is preferred. 14 H 30 ), hexadecane (C 16 H 34 ), octadecane (C 18 H 38 The melting point of the phase change material is preferably 20~37℃, more preferably 28~36℃. Multiple phase change materials with different melting points can also be used in combination, thereby broadening the temperature range for temperature regulation.

[0044] Preferably, a substance containing a first phase change substance with a melting point of 24-30°C and a second phase change substance with a melting point of 32-38°C is used. The mixing ratio of the first phase change substance to the second phase change substance is preferably 70-90:30-10 for use in warm seasons such as summer, and preferably 30-10:70-90 for use in cold seasons such as winter.

[0045] The material used for the capsule shell containing the phase change substance can be, for example, polyethylene resin, polypropylene resin, polystyrene resin, polyester resin, polyurethane resin, phenolic resin, melamine resin, vinyl chloride resin, vinyl acetate resin, silicone resin, acrylic resin, silicone, etc., with polyurethane resin and acrylic resin being particularly preferred.

[0046] The fabric used as the base material for the temperature-regulating fabric 14 can be any of woven, knitted, or nonwoven fabrics, and its material is not particularly limited. For example, it can be composed of natural fibers such as cotton, linen, silk, and wool, or chemical fibers such as rayon, nylon, polyethylene, polypropylene, and polyester, as well as mixtures thereof. To reduce the stiffness of the temperature-regulating fabric 14, a relatively thin and strong fabric is preferred, such as a fabric made of polypropylene or polyester fibers. In this embodiment, a nonwoven fabric made of polypropylene fibers is used. To maintain softness, the area weight of the fabric used as the base material for the temperature-regulating fabric 14 is preferably 10 to 100 g / m², more preferably 10 to 30 g / m².

[0047] The adhesive used to attach the microcapsules containing the phase change substance to the fabric is not particularly limited, but at least one selected from acrylic resin, polyurethane resin, and silicone resin is preferred. This makes the cooling material layer difficult to peel off the fabric, improving wash resistance.

[0048] By coating a coating liquid containing microcapsules of phase change substances and an adhesive onto a fabric that serves as the substrate of temperature-regulating fabric 14 through methods such as roller printing, screen printing, spraying, or dip coating, and then drying, a temperature-regulating fabric 14 with microcapsules containing phase change substances can be obtained.

[0049] In addition to microcapsules and adhesives, at least one temperature-regulating material selected from the following can be added to the above coating liquid: water-absorbing resin, gel-like substance, silicone resin, thermally conductive inorganic compound, silicone oil, menthol, xylitol and silk protein.

[0050] As a water-absorbing resin, sodium polyacrylate, methylcellulose, ethylcellulose, cellulose-propylene-graft copolymer, starch-acrylic acid-graft copolymer, etc. are preferred.

[0051] As a gel-like substance, natural polymers such as xanthan gum, pectin, starch, cellulose, cellulose derivatives, agar, collagen, hyaluronic acid, alginic acid, and chitosan are preferred, as well as synthetic resins such as polyvinyl alcohol, polyacrylate, polyvinyl chloride, polyacrylamide, polyurethane, and their derivatives.

[0052] As the silicone resin, thermally conductive silicone resins, methyl vinyl polysiloxanes, etc., are preferred. Thermally conductive silicone resins are, for example, silicone resins in which thermally conductive materials such as carbon black and alumina are dispersed.

[0053] As thermally conductive inorganic materials, aluminum oxide, magnesium oxide, zinc oxide, aluminum nitride, silicon carbide, silicon dioxide, calcium carbonate, sodium oxide, etc. are preferred.

[0054] Silicone oil is, for example, a liquid polysiloxane. Methyl silicone oil and modified silicone oil can be used.

[0055] Modified silicone oils include amino-modified silicone oils, epoxy-modified silicone oils, polyether-modified silicone oils, carboxyl-modified silicone oils, and hydroxyl-modified silicone oils.

[0056] Silicone oils can also be prepared, for example, by adding an emulsifier to a mixture of modified hydroxyl polysiloxane and epoxy polyether silicone oil.

[0057] The coating liquid may further contain at least one selected from deodorants, softeners, mildew inhibitors, and antibacterial agents. For example, silicates can be used as deodorants. For example, silicone resins can be used as softeners. For example, organic mildew inhibitors such as biphenyl and OPP, inorganic mildew inhibitors such as ammonium persulfate, calcium phosphate, and silver ion compounds, or natural mildew inhibitors such as mustard extract and artemisia argyi can be used.

[0058] As antibacterial agents, natural, organic, and inorganic antibacterial agents can be used. Examples of natural antibacterial agents include chitosan. Examples of organic antibacterial agents include quaternary ammonium salts, organometallic compounds, biguanides, pyridines, imidazoles, thiazoles, halogens, and esters. Examples of inorganic antibacterial agents include those containing metal ions.

[0059] For the fabric of the temperature-regulating cloth 14 substrate (hereinafter referred to as the "base fabric"), the amount of microcapsules containing phase change substances is preferably 5 to 100 g / m², more preferably 15 to 50 g / m². By setting the amount of adhesion within the above range, the temperature regulation effect can be fully obtained, while preventing damage to the softness of the temperature-regulating cloth 14.

[0060] Figure 2 An embodiment of the temperature-regulating fabric 14 used in this invention is shown. This temperature-regulating fabric 14 has a coating 18 formed on a base fabric 17, containing capsules of a phase change substance, and is in a striped pattern. The width W1 of the coating 18 is preferably 0.5 to 5 mm, and the spacing W2 of the coating 18 is preferably 0.5 to 5 mm. Furthermore, the coating 18 is applied to the base fabric 17 such that it extends obliquely relative to the width or length direction of the cover 10. This allows for easy application of the coating 18 while simultaneously achieving good softness of the temperature-regulating fabric 14.

[0061] As another method to improve the softness of the temperature-regulating fabric 14, a coating liquid containing microcapsules of phase change substances and an adhesive can be coated onto the base fabric 17, dried, and then subjected to roll calendering softening treatment. In this invention, the expression "subjected to roll calendering softening treatment" is a description of the article's properties by defining the method, but it is difficult to specify the properties of the base fabric 17 after the coating film 18 is formed by roll calendering using physical properties, and there are cases where only this expression is possible.

[0062] The blanket 10 constructed in this way has a temperature-regulating fabric 14, in which microcapsules containing phase change substances are attached by an adhesive between the filling layers 13a and 13b. Therefore, when a person enters the blanket 10, the body heat causes the temperature of the filling layers 13a and 13b to rise. The phase change substances within the microcapsules of the temperature-regulating fabric 14 melt and absorb the heat of fusion, thereby preventing excessive heating and suppressing the stuffy feeling caused by overheating. Furthermore, when the external temperature drops in the morning, causing the temperature of the filling layers 13a and 13b to decrease, the phase change substances within the microcapsules of the temperature-regulating fabric 14 solidify, generating heat of solidification and thus suppressing the temperature drop. In this way, temperature regulation via the temperature-regulating fabric 14 can maintain a consistently comfortable temperature. Moreover, even if the amount of microcapsules attached to the temperature-regulating fabric 14 is increased, the temperature-regulating fabric 14, located between the multiple filling layers 13a and 13b, is unlikely to cause a deterioration in tactile feel.

[0063] Furthermore, in this embodiment, since the coating 18 containing the phase change substance capsules is formed in a striped pattern on the base fabric 17, the damage to the softness of the temperature regulating fabric 14 caused by the coating 18 can be reduced.

[0064] Figure 3 This is a cross-sectional view showing another embodiment of applying the multi-layered structure of the quilt of the present invention to a blanket. The blanket 10a has: an outer side fabric 11, an inner side fabric 12, two filling layers 13a and 13b disposed between the side fabrics 11 and 12 and divided into two layers, and a temperature regulating fabric 14 disposed between the two filling layers 13a and 13b. The outer side fabric 11 and the inner side fabric 12 are surrounded by a binding 16 with the fabric ends bound with a twill tape or the like to prevent them from coming apart.

[0065] Furthermore, in this embodiment, to prevent the outer side fabric 11, the inner side fabric 12, the filling layers 13a and 13b, and the temperature regulating fabric 14 from misaligning with each other, a quilting 19 is formed with a specified width. In this embodiment, the filling layers 13a and 13b are made of fiber materials that can be supplied in layers, such as natural fibers like wool, cotton, and linen, or synthetic fibers like polyester, acrylic, rayon, and cupro fiber.

[0066] In addition, the filling layer is not limited to two layers, but can also be three or more layers. The temperature regulating cloth 14 can be provided between any of the layers or between all the layers.

[0067] Figure 4 This is a cross-sectional view showing another embodiment of the multi-layered quilt structure of the present invention applied to a blanket. The difference between this blanket 10b and the previous embodiment is that, as filling cotton, it has an upper filling cotton 13a, a middle filling cotton 13b, and a lower filling cotton 13c.

[0068] The top filling 13a contains 90% by weight granular cotton and 10% by weight super-absorbent and moisture-wicking cotton composed of modified rayon fibers and modified acrylic fibers. [For a single-size (150cm wide × 210cm long) quilt,] each top filling 13a weighs 700g. The top filling 13a is located between the outer side fabric 11 and the middle fabric 20, which are integrated by quilting 21 to form a laminate 31 like a quilt.

[0069] Between the intermediate fabric 20 and the middle filling cotton 13b, a temperature-regulating fabric 14 with microcapsules containing phase change substances is provided. The microcapsules are composed of a substance containing 80% phase change substance with a melting point of 36°C and 20% phase change substance with a melting point of 28°C. The coating amount of the microcapsules is 20 g / m².

[0070] The middle filling 13b contains 90% polyester fiber by weight and 10% temperature-regulating cotton made of lyocell fibers blended with microcapsules containing phase change substances. [For a single-size duvet,] each sachet contains 300g of middle filling 13b.

[0071] The lower filling 13c contains 80% by weight of polyester fiber cotton and 20% by weight of the super absorbent and moisture-wicking cotton. [For a single-size duvet,] the amount of each lower filling 13c is 250g.

[0072] The outer side of the lower filling cotton 13c has an inner side fabric 12. The middle filling cotton 13b and the lower filling cotton 13c are located between the temperature regulating fabric 14 and the inner side fabric 12, and they are integrated by quilting 22 to form another laminate 32 like a quilt.

[0073] The laminates 31 and 32 are connected by a binding 16, which is sewn with a bias tape or similar fabric end to prevent them from coming apart. In addition, by point-stitching the connecting parts 23 at designated locations on the inside, misalignment is suppressed, and the whole is formed into an integrated blanket 10b.

[0074] Thus, because the two laminates 31 and 32 overlap and integrate to form a single blanket 10b, the individual fillings 13a, 13b, and 13c are more easily fluffy and can better contain air layers. Furthermore, by overlapping and integrating the two laminates 31 and 32, the advantage of diversifying the filling combinations can be achieved. For example, the upper laminate 31 can be filled with feathers, granular cotton, etc., while the lower laminate 32 can be filled with cotton, wool, polyester, acrylic, etc.

[0075] The blanket 10b, because the lower filling 13c contains super absorbent and moisture-wicking cotton, can absorb moisture in the bedding and regulate humidity.

[0076] In addition, since the upper filling cotton 13a contains granular cotton and super absorbent cotton, it absorbs moisture and generates heat, giving a feeling of warmth.

[0077] Furthermore, since the middle filling cotton 13b contains polyester fibers and temperature-regulating cotton made of lyocell fibers mixed with microcapsules containing phase change substances, and is provided with temperature-regulating fabric 14 with microcapsules containing phase change substances attached, it can suppress the temperature rise near body temperature and suppress the temperature drop when it gets cold, thereby maintaining the temperature inside the quilt at a comfortable temperature in a wide range of ambient temperatures.

[0078] The above embodiments are examples of applying the present invention to blankets, but the present invention is not limited to blankets, and can also be applied to mattress pads, pillows, mattresses, carpets, floor mats, sofas, mattresses, etc.

[0079] Experimental Example 1 The following tests were conducted using nonwoven fabrics made of polypropylene fibers, with microcapsules containing phase change material (hereinafter referred to as "PCM") coated with an adhesive (Example 1) and nonwoven fabrics without the aforementioned PCM coating (Example 2). In Example 1, the PCM coating pattern was hexagonal dots, and the PCM coating amount was 43 g / m². Furthermore, the phase change material contained in the PCM microcapsules was a substance with a melting point of 28°C.

[0080] Test examples 1 and 2 were cut into 10cm x 10cm pieces to serve as their respective test pieces. Furthermore, a temperature sensor was used, consisting of a thin-film thermocouple tip sandwiched between two aluminum foils (15mm x 15mm). A hot plate with a set temperature of 36℃ was used as the heating method. The test environment was set to 20℃ ± 2℃ and 65 ± 4% RH.

[0081] The aforementioned temperature sensors were attached to the center of the test pieces in Test Example 1 and Test Example 2, respectively, and the two test pieces were placed on insulating material. Then, a hot plate with a 5mm thick styrene sheet mounted on its surface was placed on the two test pieces for heating. After 10 minutes, the hot plate was removed from the two test pieces, and they were left to stand for another 10 minutes. Then, the surface temperature of the test pieces was measured every second as time progressed.

[0082] The results are shown in Figure 5 .like Figure 5 As shown, in Test Example 1 with PCM attached, compared with Test Example 2 without PCM attached, the rapid temperature rise when heated by the hot plate was suppressed, and the rapid temperature drop after the hot plate was removed was also suppressed.

[0083] Experimental Example 2 Manufactured with Figure 1 , 2The miniature quilt has the same structure as the blanket 10 shown. The miniature quilt is 15cm × 15cm in size. The side fabrics 11 and 12 are made of polyester fiber fabric, and the filling cotton 13a and 13b are made of 80% GDD feathers, with a filling amount of 254g / m² respectively.

[0084] The substrate of the temperature regulating fabric 14 is a polypropylene fiber nonwoven fabric, and the amount of microcapsules containing phase change material is 20 g / m². Example 1 shows a fabric with microcapsules containing 80% phase change material with a melting point of 28°C and 20% phase change material with a melting point of 36°C, and Example 2 shows a fabric with microcapsules containing 20% ​​phase change material with a melting point of 28°C and 80% phase change material with a melting point of 36°C. Furthermore, a nonwoven fabric without attached microcapsules is shown as Comparative Example 1.

[0085] Performance tests were conducted using these blankets. Specifically, temperature sensors were inserted between the filling materials 13a and 13b of each blanket, into the portion containing the temperature-regulating fabric 14 or non-woven fabric. The blankets were first placed in a test chamber with a temperature set at 15°C and 50% humidity to allow them to acclimatize. Then, they were transferred to a test chamber with a temperature set at 40°C and 50% humidity for 23 minutes, and the temperature change of the temperature sensors was measured. Next, the blankets were placed back in the test chamber with a temperature set at 15°C and 50% humidity, and the temperature change of the temperature sensors was measured again. The results are shown below. Figure 6 .

[0086] like Figure 6 As shown, compared with Comparative Example 1, the temperature rise during heating in Examples 1 and 2 is suppressed, and the temperature drop after heating is stopped is also suppressed. Thus, by providing the temperature regulating cloth 14, it can be seen that it has the effect of suppressing temperature changes as much as possible and maintaining a comfortable temperature range for a long time.

[0087] Furthermore, it is known that Example 1, with microcapsules containing 80% phase change material with a melting point of 28°C and 20% phase change material with a melting point of 36°C, has the effect of maintaining a relatively high temperature, while Example 2, with microcapsules containing 20% ​​phase change material with a melting point of 28°C and 80% phase change material with a melting point of 36°C, has the effect of maintaining a relatively low temperature. Therefore, Example 1 is suitable as bedding for colder seasons, and Example 2 is suitable as bedding for warmer seasons.

[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-layered quilt, characterized in that, Includes a pair of side fabrics and a filling layer disposed between the side fabrics. The filler layer is divided into multiple layers in the lamination direction. Between the multiple layers, there is a temperature-regulating fabric with microcapsules containing phase change substances attached by an adhesive.

2. The multi-layered quilt according to claim 1, characterized in that, The amount of microcapsules attached to the temperature-regulating cloth is 5~100g / m².

3. The multi-layered quilt according to claim 1, characterized in that, The microcapsule contains a first phase change substance with a melting point of 24-30°C and a second phase change substance with a melting point of 32-38°C.

4. The multi-layered quilt according to claim 1, characterized in that, The mixing ratio of the first phase change material to the second phase change material is 70:30 to 90:

10.

5. The multi-layered quilt according to claim 3, characterized in that, The mixing ratio of the first phase change material to the second phase change material is 30:70 to 10:

90.

6. The multi-layered quilt according to claim 1, characterized in that, On the temperature-regulating fabric, the microcapsules are attached in a stripe pattern with a width of 0.5-5 mm and an interval of 0.5-5 mm by the adhesive.

7. The multi-layered quilt according to claim 1, characterized in that, The temperature-regulating fabric is a fabric that has undergone roll calendering and softening treatment after the microcapsules are attached.

8. A multi-layered quilt according to any one of claims 1-7, characterized in that, At least one layer of the filling layer contains natural fibers selected from feathers, wool, silk, hemp, and cotton.

9. A multi-layered quilt according to any one of claims 1-7, characterized in that, At least one layer of the filling layer contains a moisture-absorbing and heat-generating fiber selected from acrylate, rayon, and cuprammonium fiber.

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