Duvet

Abstract

To provide a quilt in which filling material is unlikely to become unevenly distributed due to repeated washing and drying and which can ensure heat retention. [Solution] The comforter 1 has an outer fabric 2 and an inner fabric 3 formed into a bag shape, and a filler 4 filled in the space S between the outer fabric 2 and the inner fabric 3, the filler 4 being made of polyester fibers 4a, the fiber length of the polyester fibers 4a being 10 to 22 mm, and the fiber thickness of the polyester fibers 4a being 0.5 to 1.0 denier.

Description

[Technical field]

[0001] This invention relates to a quilt in which a filling material is filled in the space formed between the outer fabric and the inner fabric. [Background technology]

[0002] Traditionally, down and feathers from birds such as ducks and geese (hereinafter referred to as "feathers") have been widely used as a type of filling for duvets that require heat retention. Duvets filled with feathers are characterized by being lightweight, having high heat retention, and excellent moisture absorption and dissipation properties.

[0003] As an example of a duvet filled with feathers, as shown in Patent Document 1, a duvet body has been proposed which is sewn into a bag shape, and the duvet body has a front fabric, a back fabric, and a strip-shaped partition cloth which divides the space between the front and back fabrics into a number of spaces which are filled with feathers.

[0004] In the down comforter described in Patent Document 1, the space formed in the widthwise center of the comforter body is filled with more feathers per unit volume than the other spaces. Therefore, if the amount of feathers per unit volume filled in the space formed in the widthwise center of the comforter body is increased, a sufficient heat retention effect can be obtained even if the amount of feathers in the other spaces is reduced. Therefore, a sufficient heat retention effect can be obtained without increasing the overall amount of feathers used. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-7667 Summary of the Invention [Problem to be solved by the invention]

[0006] The duvet described in Patent Document 1 has a problem that it cannot withstand long-term use because friction occurs when it is repeatedly washed and dried, and the feathers gather together and become uneven when pressure is applied, causing the duvet to become hard and lose its shape. In addition, there is a problem that the heat retention decreases when the feathers gather together and become uneven, causing the duvet to become hard and lose its shape.

[0007] Therefore, the problem that this invention aims to solve is to provide a quilt that is less likely to develop uneven filling due to repeated washing and drying, and that can ensure heat retention. [Means for solving the problem]

[0008] In order to solve the above problems, the comforter according to this invention can have an outer fabric and an inner fabric formed into a bag shape, and a filler material filled in the space between the outer fabric and the inner fabric, the filler material being made of polyester fibers, the fiber length of the polyester fibers being 10 to 22 mm, and the fiber thickness of the polyester fibers being 0.5 to 1.0 denier.

[0009] The polyester fibers as the filler in this configuration are regulated in fiber thickness and fiber length so that they are less likely to become entangled with each other. Therefore, they are less likely to become entangled and hardened, and can maintain their softness even after long-term use. In addition, even if friction occurs and pressure is applied due to repeated washing and drying, the fibers can be prevented from becoming entangled with each other and hardening.

[0010] The filler may include functional fibers, such as deodorant fibers, anti-mite fibers, and antibacterial fibers, which may be added to the polyester fibers to impart the desired functions to the filler. Effect of the Invention

[0011] As described above, the futon according to this invention uses polyester fibers with specified fiber length and fiber thickness as the filler, which makes it difficult for the filler to become biased and ensures heat retention. In addition, even after repeated washing and drying, the filler is unlikely to become biased, so heat retention can be maintained. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a plan view of a comforter according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a partially cutaway side view of the comforter according to the embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The following describes a quilt 1 according to an embodiment of the present invention with reference to the drawings. As shown in Figures 1 and 2, the quilt has a front fabric 2 and a back fabric 3 formed in a bag shape, and a filler 4 filled in the space S between the front fabric 2 and the back fabric 3.

[0014] The front fabric 2 and the back fabric 3 are cut into rectangles of the same size. The peripheral edges of the front fabric 2 and the back fabric 3 are sewn together to form a bag shape. The front fabric 2 and the back fabric 3 are made of woven or knitted fabrics made of polyester fibers. In the case of woven fabrics, for example, warp pile woven fabrics and weft pile woven fabrics can be used. In the case of knitted fabrics, for example, sinker pile knitted fabrics, raschel pile knitted fabrics, tricot pile knitted fabrics, etc. can be used.

[0015] A space S is formed between the front fabric 2 and the back fabric 3. The space S is filled with a filler 4. The filler 4 is made of polyester fibers 4a. The polyester fibers 4a have a fiber length of 10 to 22 mm and a fiber thickness of 0.5 to 1.0 denier.

[0016] When the fiber length of the polyester fibers 4a is shorter than 10 mm, the volume (bulk) per weight of the polyester fibers 4a is small. Also, the smaller volume (bulk) reduces the heat retention of the quilt. On the other hand, when the fiber length of the polyester fibers 4a is longer than 22 mm, the fibers tend to be entangled and form clumps, causing the quilt to lose its shape and losing its feather-like softness. Also, when the fiber thickness of the polyester fibers 4a is thinner than 0.5 denier, the density of the fibers is low. As a result, the volume (bulk) per weight of the polyester fibers 4a is small, and the heat retention is reduced. On the other hand, when the fiber thickness of the polyester fibers 4a is thicker than 1.0 denier, the feather-like softness is lost, and the heat retention is also reduced in this case.

[0017] The filler 4 may contain functional fibers such as moisture absorbing heat generating fibers, deodorizing fibers, anti-mite fibers, and antibacterial fibers. The moisture absorbing heat generating fibers are fibers that generate heat by absorbing moisture such as sweat, and known fibers can be used. The deodorizing fibers are fibers that remove odorous components by decomposing or adsorbing them, and known fibers can be used. The anti-mite fibers and antibacterial fibers are fibers with anti-mite agents and antibacterial agents fixed to the fiber surface, and known fibers can be used. The functional fibers can be contained in a range that does not impair the action and effect of the polyester fibers 4a, for example, up to 20% by weight relative to the total weight of the polyester fibers 4a. By containing the functional fibers in the filler 4, moisture absorbing heat generating, deodorizing, anti-mite, or antibacterial properties can be imparted to the filler 4.

[0018] In order to confirm the heat retention of the polyester fibers 4a as the filling material 4 in the comforter 1, the following performance test A was carried out. The test results are shown in Table 1.

[0019] [Test A] Test method: ASTM D 1518-85 "Test method for thermal conductivity of textile materials", Testing machine: ASTM type heat retention tester, Testing environment: 20℃, 65%RH [Test specimen] Example 1: granular polyester fiber 4a, Example 2: wadding polyester fiber 4a, Comparative Example 1: feathers (down 85%, feather 15%) [Test items] Heat retention rate, CLO value

[0020] [Table 1]

[0021] According to the results of Test A, when quilts of the same loft were made, Examples 1 and 2 showed superiority in both heat retention and CLO value compared to Comparative Example 1, and were confirmed to be warmer.

[0022] Furthermore, in order to confirm the change in heat retention due to washing of the polyester fibers 4a as the filling material 4 in the comforter 1, the following performance test B was carried out. The test results are shown in Table 2.

[0023] [Test B] Test method: ASTM D 1518-85 "Test method for thermal conductivity of textile materials", Testing machine: ASTM type heat retention tester, Testing environment: 20℃, 65%RH [Test specimen] Example 3: New polyester fiber 4a, Example 4: Polyester fiber 4a after washing [Washing instructions] Wash 1 was followed by wash 2. Washing 1: 15 washes using a domestic washing machine on the 50-minute cycle (10-minute spin cycle), washing time: 750 minutes, 3 line-dry cycles, drying time: 330 minutes, total time: 1,080 minutes, Washing 2: Two 60-minute cycles using the coin laundry washer-dryer (warm water wash at approximately 50°C, warm air drying), total time: 120 minutes. [Test items] Heat retention rate, CLO value

[0024] [Table 2]

[0025] According to the results of Test B, Example 4 showed a decrease in heat retention of only about 5% compared to Example 3, but it was confirmed that the heat retention was sufficiently excellent even after washing.

[0026] The comforter 1 according to this embodiment is constructed as described above. In the comforter 1, the space S between the front fabric 2 and the back fabric 3 is filled with polyester fibers 4a as the filler 4. The length of the polyester fibers 4a is 10 to 22 mm, and the fiber thickness of the polyester fibers 4a is 0.5 to 1.0 denier. The polyester fibers 4a do not easily become entangled with each other and harden, and can maintain a soft state even after long-term use. Furthermore, the polyester fibers 4a do not easily become entangled with each other and harden, even when friction is generated and pressure is applied due to repeated washing and drying.

[0027] In the comforter 1, the filling material 4 made of such polyester fibers 4a does not harden or become unevenly distributed within the space S, and remains soft like feathers. This allows the comforter 1 to maintain high heat retention for a long period of time. Furthermore, even after repeated washing and drying, the filling material 4 does not become entangled with each other within the space S, harden, or become unevenly distributed, and the comforter 1 is able to maintain its heat retention. [Explanation of symbols]

[0028] 1 duvet 2 Outer fabric 3 Lining 4 Filling material 4a polyester fiber S space

Claims

1. The comforter has a front fabric and a back fabric formed in a bag shape, and a filler filled in the space between the front fabric and the back fabric, the filler being made of polyester fiber, the fiber length of the polyester fiber being 10 to 22 mm, and the fiber thickness of the polyester fiber being 0.5 to 1.0 denier.

2. 2. The comforter according to claim 1, wherein the filling material contains functional fibers made of a material different from the polyester fibers.

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