Light blanket

Abstract

To provide a light blanket which has a comfortable feel when sleeping and can exhibit moisture absorption, odor absorption and cooling performance as a whole product. [Solution] The light blanket 10 of this invention is composed of an upper cloth 11, a filling 12, and a lower cloth 13. The filling 12 is composed of an upper nonwoven fabric 14, a lower nonwoven fabric 15, and silicone cotton 17 with granular adsorbent 16 sandwiched between the upper and lower nonwoven fabrics 14, 15. The upper and lower cloths 11, 13 contain polyurethane and are made of fabric with a textured surface, providing a cooling effect. Furthermore, air layers 18 formed between the upper and lower cloths 11, 13, and the filling 12 act as buffer layers, improving the feel. The even distribution of the granular adsorbent 16 also contributes to moisture absorption and deodorization.

Description

[Technical Field]

[0001] This invention relates to a light blanket, more specifically to a light blanket as a daily necessities such as down blankets, towel blankets, gauze blankets, cotton blankets, etc., which are in high demand during hot seasons. [Background technology]

[0002] Generally, natural cotton or synthetic cotton (synthetic cotton) is used as filling inside down quilts and other light comforters, primarily for the purposes of heat retention, cushioning, and flexibility. In recent years, in addition to the basic functions of heat retention, cushioning, and flexibility, there has been a demand for high moisture absorption and odor absorption capabilities, which also help prevent dust mites and mold.

[0003] For example, Patent Document 1 discloses a floor mat. In the following paragraphs, the reference numerals of Patent Document 1 are shown in parentheses. A filling (1) is formed by sandwiching a granular absorbent (13) between upper and lower cotton-like layers (11), (12). This filling (1) is placed between an upper cloth (2) and a lower cloth (3). The upper cloth (2), filling (1), and lower cloth (3) are then sewn together with a thread (5) that penetrates through the thickness of the fabric to complete the floor mat. When sewing with the thread (5), it is preferable to sew the fabric together so that a grid-like seam is created on the floor mat when viewed from above. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3117106 Summary of the Invention [Problem to be solved by the invention]

[0005] When a rug structure consisting of a filling sandwiched between granular adsorbents and cotton-like layers above and below the filling, as in Patent Document 1, is used as a light blanket, it can exhibit moisture absorption and odor absorption properties as a light blanket. However, because light blankets are generally thin, the granular adsorbents can have a rough texture that is felt by the person using the light blanket, making it uncomfortable to the touch.

[0006] SUMMARY OF THE INVENTION The object of the present invention is to provide a light blanket that is comfortable to sleep on and has moisture and odor absorbing properties as a whole product, in consideration of the problems of the prior art described above. [Means for solving the problem]

[0007] The light blanket according to the invention of claim 1 is: A light blanket that is a stitched product of an upper cloth on the front side, a lower cloth on the skin side, and a filling material disposed between the upper cloth and the lower cloth, The filling material is Silicone cotton with granular absorbent kneaded into it, and upper and lower nonwoven fabrics arranged above and below the silicone cotton, It is characterized by having a five-layer structure consisting of the upper cloth, the upper nonwoven cloth, the silicone cotton, the lower nonwoven cloth, and the lower cloth.

[0008] The light blanket according to the invention of claim 2 is the light blanket according to claim 1, At least the lower cloth is made of a fabric containing at least polyurethane fiber that is processed to have unevenness rather than flatness, and the structure is characterized by including an air layer between the lower cloth and the inner material.

[0009] The light blanket according to the invention of claim 3 is: A light blanket that is a stitched product of an upper cloth on the front side, a lower cloth on the skin side, and a filling material disposed between the upper cloth and the lower cloth, The filling material is Filled with granular absorbent, and upper and lower nonwoven fabrics disposed above and below the padding, The fabric has a five-layer structure consisting of the upper fabric, the upper nonwoven fabric, the padding, the lower nonwoven fabric, and the lower fabric, and is made of a fabric containing at least polyurethane fibers that has been processed so that the surface of at least the lower fabric is not flat but has bumps, and is characterized by a structure that includes an air layer between the lower fabric and the padding.

[0010] The light blanket according to the invention of claim 4 is the light blanket according to claim 1, The thickness of one layer of the silicone cotton is 0.3 to 0.8 cm, and the density is 0.003 to 0.01 g / cm 3 It is characterized in that:

[0011] The light blanket according to the invention of claim 5 is the light blanket according to any one of claims 1 to 4, The upper and lower cloths are characterized by being made of fabrics containing nylon fibers and polyester fibers.

[0012] The light blanket according to the invention of claim 6 is the light blanket according to any one of claims 1 to 4, The inner material is arranged between the upper cloth and the lower cloth, and they are sewn together with a thread that penetrates through the thickness direction to form a planar lattice-like seam, so that the inner material does not become uneven.

[0013] The invention of claim 7 is a light blanket according to any one of claims 1 to 4, The granular adsorbent is silica gel with a diameter of 1-1.5 mm, and is characterized by its excellent moisture absorption and desorption function, as well as its odor absorption function.

[0014] The light blanket according to the invention of claim 8 is the light blanket according to any one of claims 1 to 4, Cool-to-touch test q-MAX value is 0.200 (W / cm 2 ) or more. [Effects of the Invention]

[0015] According to the light comforter of claim 1, granular adsorbents are kneaded into silicone cotton whose fibers have been treated with silicone resin. Nonwoven fabric is placed above and below the silicone cotton to prevent the granular adsorbents from spilling out. Silicon cotton is more elastic and flexible than conventional polyester cotton, and is less likely to wear out. It also has excellent breathability, allowing the granular adsorbents to fully perform their functions of absorbing moisture and odors. Furthermore, because the silicone cotton is elastic, contains an air layer inside, and is resistant to crushing, it effectively reduces the granular texture of the granular adsorbents on the skin of the comforter user.

[0016] According to the light comforter of claim 2, in addition to the effects of the light comforter of claim 1, the surface of the lower fabric facing the skin is not flat but is processed to have an uneven texture. The fabric material contains at least polyurethane fiber, which gives it a certain shape retention and makes it less likely to wrinkle. Furthermore, by processing the surface of the fabric to have an uneven texture, an appropriate air layer is maintained between the lower fabric that touches the skin and the filling. This air layer acts as a buffer layer, making it even less noticeable to the touch the granular adsorbent particles contained in the silicone cotton. Furthermore, the uneven texture on the skin side gives the comforter a light, comfortable feel and a cool sensation.

[0017] According to the light comforter of claim 3, the surface of the lower fabric facing the skin is not flat but is processed to have an uneven texture. The fabric material contains at least polyurethane fiber, which provides a certain degree of shape retention and prevents wrinkling. Furthermore, by processing the surface of the fabric to have an uneven texture, an appropriate air layer is maintained between the lower fabric that touches the skin and the filling. This air layer acts as a buffer layer, making it even less noticeable to the touch the granular adsorbent particles contained in the filling. Furthermore, the uneven texture on the skin side gives the comforter a light, comfortable feel and a cool sensation.

[0018] According to the light blanket of claim 4, in addition to the effects of the light blanket of claim 1, the silicone cotton has better elasticity, breathability and flexibility than polyester cotton, and is less likely to wear out. The thickness of one layer of silicone cotton is 0.3 to 0.8 cm, and the density is 0.003 to 0.01 g / cm. 3 This makes it even harder to feel the granular adsorbent particles contained in the silicone cotton.

[0019] According to the light blanket of claim 5, in addition to the effects of the light blanket of any one of claims 1 to 4, the upper and lower fabrics contain nylon fiber and polyester fiber in any ratio, resulting in a fabric with a unique, fluffy texture. This fluffy fabric feels cool when it touches the user's skin. Furthermore, this fabric has antibacterial and deodorizing effects against Staphylococcus aureus and Moraxella, and moisture-wicking and quick-drying properties.

[0020] According to the light blanket of claim 6, in addition to the effects of the light blanket of any one of claims 1 to 4, the upper cloth, filling material, and lower cloth are sewn together with a thread that penetrates through the thickness direction, thereby preventing the filling material from shifting between the upper cloth and the lower cloth. By applying sewing and quilting processing, the granular adsorbent in the filling is evenly distributed, so the light blanket can maintain sufficient moisture absorption, cushioning, and flexibility.

[0021] According to the light blanket of claim 7, in addition to the effects of the light blanket of any one of claims 1 to 4, the granular adsorbent refers to silica gel with a diameter of 1 to 1.5 mm. In addition to moisture absorption and release functions, this silica gel also has excellent deodorizing properties and is effective in reducing components such as indole, ammonia, acetic acid, isovaleric acid, and nonenal.

[0022] According to the light blanket of claim 8, in addition to the effects of the light blanket of any one of claims 1 to 4, the q-MAX value in the cool-touch test is 0.200 (W / cm 2 ) allows heat to dissipate more easily, providing a cooling effect. [Brief explanation of the drawings]

[0023] [Figure 1] (a) is a cross-sectional view of a light blanket according to one embodiment of the present invention, and (b) is an enlarged view of a portion thereof. [Figure 2] FIG. 4 is a cross-sectional view of a light blanket according to another embodiment of the present invention. [Figure 3] Photograph showing an example of a textured fabric used for the upper and / or lower fabric. [Figure 4] Photograph showing an example of a textured fabric used for the upper and / or lower fabric. [Figure 5] Graph showing the moisture content measurement results for a light blanket according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, one embodiment of the light blanket of the present invention will be described with reference to the drawings.

[0025] As shown in Figures 1(a) and 1(b), the light blanket 10 is composed of an upper cloth 11 on the front side, a filling 12, and a lower cloth 13 on the skin side (touching the skin). The filling 12 is composed of an upper nonwoven fabric 14, a lower nonwoven fabric 15, and silicone batting 17 with granular adsorbent 16 kneaded in between the upper and lower nonwoven fabrics 14, 15. To construct the light blanket 10 of this embodiment, the lower nonwoven fabric 15 is prepared, and silicone batting 17 with a large number of granular adsorbent 16 kneaded in approximately uniformly is placed on top of it. The upper nonwoven fabric 14 is then placed on top of that to form the filling 12. As shown in Figure 2, the top and bottom of this filling 12 are preferably sandwiched between the upper cloth 11 and the lower cloth 13, and the fabrics are sewn together so that the silicone batting 17 is evenly distributed without unevenness. In addition, the upper nonwoven fabric 14 and the lower nonwoven fabric 15, or the upper fabric 11 and the lower fabric 13, may each be an independent piece of fabric, or the upper nonwoven fabric 14 and the lower nonwoven fabric 15, or the upper fabric 11 and the lower fabric 13, may each be the upper and lower fabrics of a single cloth bag.

[0026] In this embodiment, the upper cloth 11 and the lower cloth 13 are made of fabric that contains at least polyurethane fiber, nylon fiber, and polyester fiber in any proportion, and therefore feels cool to the user's skin. Furthermore, by processing the surface of the upper cloth 11 and the lower cloth 13 to make it uneven, the surface area of the fabric increases, which allows more heat to dissipate and the cooling rate to increase, making the fabric feel even cooler to the user's touch.

[0027] In the light duvet 10 of this embodiment, the cool-to-touch evaluation value q-max (JIS L1927 of Japan Industrial Planning) according to the Thermo Lab II method is 0.207 (W / cm 2 ) is shown as a high value. Generally, the evaluation value is 0.100 w / cm 2 The above is an example of an evaluation that indicates that the product has cooling performance. In this way, the q-max value of the cooling sensation test is 0.200 (W / cm 2 ) or more, which feels cool to the touch and provides a comfortable feel to the skin.

[0028] By processing the surfaces of the upper cloth 11 and the lower cloth 13 to create an uneven texture, an appropriate air layer 18 is created between the upper cloth 11 and the padding 12, and between the lower cloth 13 and the padding 12. This air layer 18 acts as a buffer layer, reducing the feel of the granular adsorbent 16 kneaded into the silicone cotton batting 17, resulting in a pleasant feel against the skin. Figures 3 and 4 are photographs showing an example of the uneven surface structure of the upper cloth 11 and the lower cloth 13. These fabrics can have a unique, fluffy texture due to the continuous unevenness. When this fluffy textured fabric comes into contact with the user's skin, it gives the user a cool feeling.

[0029] The thickness of one layer of the silicon cotton 17 is preferably 0.3 to 0.8 cm, and the density is 0.003 to 0.01 g / cm. 3 In the example, the thickness is about 0.5 cm and the density is about 0.006 g / cm 3The granular adsorbent 16 kneaded into the silicone cotton 17 is silica gel with a diameter of 1 to 1.5 mm, which has excellent moisture absorption and desorption functions and odor absorption functions. In addition to its moisture absorption and desorption functions, this silica gel also has excellent deodorizing functions and is effective in reducing components such as indole, ammonia, acetic acid, isovaleric acid, and nonenal.

[0030] Although there are no particular restrictions on the fibers constituting the nonwoven fabric used in the present invention, a nonwoven fabric that shrinks little and does not lose its stiffness when washed is preferred in order to provide a light blanket 10 with excellent washability. For example, a nonwoven fabric containing polyester fibers can be used as such a nonwoven fabric.

[0031] Furthermore, as shown in Figure 2, by applying a quilting process that creates planar grid-like seams 19, the entire duvet 10' is divided into a plurality of squares by the grid-like seams 19. As a result, the cotton in each square and the granular adsorbent 16 (hereinafter referred to as the granular adsorbent, etc.) kneaded into the cotton cannot move beyond the seams 19 to the adjacent square, and even if the granular adsorbent, etc. in each square is unevenly distributed within that square, the majority of the granular adsorbent, etc. will not be concentrated in a specific area such as one corner of the duvet 10', and uniform distribution of the granular adsorbent, etc. throughout the entire duvet 10' is ensured.

[0032] Next, a method for manufacturing the light blankets 10 and 10' of the present invention will be described.

[0033] First, silicone batting 17 containing a predetermined amount of silica gel is prepared as the filling. Then, upper and lower nonwoven fabrics 14, 15 are layered and joined on the upper and lower sides of the silicone batting 17 to form the filling 12. Next, the upper cloth 11 and the lower cloth 13 are layered on the upper and lower sides of the filling 12, respectively. Once the upper cloth 11, filling 12, and lower cloth 13 are layered, they are sewn together to produce the light blanket 10. Optionally, the light blanket 10' can be produced by quilting the fabric using a quilting machine to create a grid-like seam 19 in a plan view. This quilting process sews the upper cloth 11, filling 12, and lower cloth 13 together with threads that penetrate the fabric's thickness. Alternatively, the light blanket 10' can be produced by sewing along the periphery of the light blanket 10' and then stitching the edges of the light blanket. Note that "grid-like seams" means that vertical seams and horizontal seams intersect, and it does not matter whether the single seam line in each direction is straight or curved.

[0034] In this way, by using fabric containing at least polyurethane fiber, nylon fiber, and polyester fiber in any ratio for the upper cloth 11 and the lower cloth 13, the user can feel cool when it touches the user's skin. Furthermore, by processing the surface of the upper cloth 11 and the lower cloth 13 to make it uneven, the surface area of the fabric is increased and more heat is dissipated, thereby providing a stronger cooling effect when the user touches it. Processing the surface of the fabric to make it uneven creates an air layer 18 between the filling 12, which has the effect of making the particles of the granular adsorbent 16 less noticeable.

[0035] Furthermore, due to its excellent breathability, the granular adsorbent 16 can fully exert its functions of absorbing moisture and absorbing odors. Furthermore, by applying a quilting process that creates planar grid-like seams 19, most of the granular adsorbent is not unevenly distributed in specific parts of the light blanket, and most of the granular adsorbent can come into contact with the outside air evenly, allowing it to efficiently exert its functions of absorbing moisture and absorbing odors (indole, ammonia, acetic acid, isovaleric acid, nonenal, etc.).

[0036] For example, Figure 5 shows the results of an experiment demonstrating the moisture absorption performance of a light blanket of this invention. As shown in Figure 5, a control experiment was conducted to measure the moisture content of the silica gel contained in the filling. The test sample showed the filling containing the silica gel sheet used in the light blanket, while the control sample showed the filling containing the sheet without silica gel. The test method was as follows: The submitted sample was dried and its mass was measured. Next, it was left at a temperature of 40°C and humidity of 90% for four hours, followed by another four hours at a temperature of 20°C and humidity of 65%. The mass was measured every hour under each condition, and the moisture content (%) was calculated. The moisture content of the test sample with silica gel was 44.1% after the first hour at a temperature of 40°C and humidity of 90%, increasing to 47.7% by the fourth hour. Then, at a temperature of 20°C and humidity of 65%, it was 34.4% after the fifth hour, decreasing to 21.7% by the eighth hour. On the other hand, the moisture content of the control product without silica gel went from 1.1% at the first hour at 40°C and 90% humidity to 1.6% at the fourth hour, and then from 1.3% at the fifth hour at 20°C and 65% humidity to 1.0% at the eighth hour. While the moisture content of the control product increased slightly through the fourth hour, it remained almost constant. Meanwhile, the moisture content of the test product increased significantly in the first hour, then gradually increased through the fourth hour. After the fifth hour, as both the temperature and humidity dropped, the moisture content decreased over time. These measurement results indicate that the silica gel sheet contained in the test product's filling absorbs moisture from the air and then effectively releases it. Therefore, it can be said that the light comforter using filling containing this silica gel sheet has moisture-absorbing properties.

[0037] The present invention is not limited to the above-described embodiment, and various embodiments and modifications are possible.

[0038] The light blanket 10 of the present invention is not limited to the above embodiment and can take various forms. In the above embodiment, the light blanket 10 is constructed with silicone batting in the inner material 12 and with textured fabric on both the upper cloth 11 and the lower cloth 13, but the present invention is not limited to this. For example, the light blanket 10 may be constructed with silicone batting 17 in the inner material 12 and without textured fabric on both the upper cloth 11 and the lower cloth 13. Even in this case, it is possible to achieve at least an improved feel compared to conventional products. Alternatively, the batting in the inner material 12 may be polyester batting or natural cotton, and only the lower cloth 13 may be textured. Even in this case, it is possible to achieve at least an improved feel compared to conventional products.

[0039] The present invention is not limited to the above-described embodiments and modifications, and can be implemented in various forms within the technical scope of the present invention. [Explanation of symbols]

[0040] 10: Quilt 11: Upper cloth 12: Middle material 13: Lower cloth 14: Upper nonwoven fabric 15: Bottom nonwoven fabric 16: Granular adsorbent 17: Silicone cotton (filling) 18: Air layer 19:Stitch

Claims

1. A light blanket that is a stitched product of an upper cloth on the front side, a lower cloth on the skin side, and a filling material disposed between the upper cloth and the lower cloth, The filling material is Silicone cotton with granular absorbent kneaded into it, and upper and lower nonwoven fabrics arranged above and below the silicone cotton, This light blanket is characterized by having a five-layer structure consisting of the upper fabric, the upper nonwoven fabric, the silicone cotton, the lower nonwoven fabric, and the lower fabric.

2. The light blanket described in claim 1 is characterized in that at least the lower fabric is made of a fabric containing at least polyurethane fibers that has been processed to create an uneven surface rather than a flat surface, and the lower fabric and the inner material each have an air layer between them.

3. A light blanket that is a stitched product of an upper cloth on the front side, a lower cloth on the skin side, and a filling material disposed between the upper cloth and the lower cloth, The filling material is Filled with granular absorbent, and upper and lower nonwoven fabrics disposed above and below the padding, This light blanket has a five-layer structure of the upper cloth, the upper nonwoven cloth, the filling, the lower nonwoven cloth, and the lower cloth, and is made of a fabric containing at least polyurethane fibers that has been processed so that the surface of at least the lower cloth is not flat but has irregularities, and is structured to include an air layer between the lower cloth and the filling.

4. The thickness of one layer of the silicone cotton is 0.3 to 0.8 cm, and the density is 0.003 to 0.01 g / cm ３ The light blanket according to claim 1, characterized in that:

5. 5. The light blanket according to claim 1, wherein the upper and lower fabrics are made of a fabric containing nylon fiber and polyester fiber.

6. A light blanket as described in any one of claims 1 to 4, characterized in that the filling is placed between the upper cloth and the lower cloth, and they are sewn together with a thread that penetrates through the thickness direction to create a flat lattice-like seam, thereby preventing the filling from shifting.

7. The light blanket according to any one of claims 1 to 4, characterized in that the granular adsorbent is silica gel having a diameter of 1 to 1.5 mm, and has excellent moisture absorption and release properties and also exhibits odor absorption properties.

8. The q-MAX value of the cool contact test was 0.200 (W / cm ２ 5. The light blanket according to claim 1, characterized in that it has a thickness of 1 / 2 mm or more.

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