JP2005348845A - Comforter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain refreshing heat retention performance by using both feather and high moisture absorbing/heat emitting fiber as filling of a comforter and using different fabrics in side part to absorb moisture of sweat by the high moisture absorbing and heat emitting fiber to reduce the humidity and generate heat by the absorption of moisture with preventing dispersion of heat by the feather. <P>SOLUTION: The filling layer of the comforter 10 is divided into a bottom layer 12 on a human body side and a top layer 14 on the opposite side. A mixture of the high moisture absorbing and heat emitting fiber and a synthetic fiber cotton is used as the filling of the bottom layer 12 and feather is used as the filling of the top layer 14. A permeable cloth with a high moisture permeability is used as a backing fabric 11 for covering the bottom surface of the bottom layer 12 and a high density fabric which prevents feather from being blown out is used as an outer fabric 15 covering the top surface of the top layer 14. A lightweight medium density fabric with a permeability equivalent to an median of the permeability of the backing fabric 11 and the permeability of the outer material 15 and almost free from blowing-out of the feather is used as an intermediate fabric 13 which defines the bottom layer 12 from the top layer 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a comforter for bedding.

As a comforter for bedding, a combination of cotton and feathers is known. For example, in Patent Document 1 below, the entire comforter is divided into a rectangular frame portion and an inner central portion thereof, and the central portion is filled with feathers and cotton, with the majority of the feathers at that time. The upper part of the feather part is filled with a thin cotton layer, while in the frame part, the left and right side edges are filled only with cotton, and the front and rear edges are covered with feathers and cotton. By filling the middle layer of feathers with cotton and filling the frame with relatively heavy cotton, the comforter stability is improved, and the upper surface of the central part is covered with a cotton layer. Further, it is disclosed that weight is added to the feather portion to improve stability and heat retention.
JP-A-5-111420

However, the comforter using both feathers and cotton has heavy cotton layered on the feathers in the center, so the lower feathers are compressed from above, reducing the amount of air contained in the feathers, and thus keeping warm. The use of side fabric with low air permeability to prevent the feathers from blowing out and sweating from the human body during sleep is difficult to escape, resulting in dampness with moisture, and between cotton and feathers Since there is no partition and cotton and feathers are directly laminated, there is a problem that cotton and feathers are mixed during use, and the characteristics of feathers are lost.

Patent Document 2 below relates to the invention of a sleeping bag, in which a moisture absorbing / releasing moisture exothermic fiber material other than animal fibers and cotton, feathers or synthetic fiber cotton are laminated between the top sheet and the back sheet as a filling. And filling is described. However, in this case, since it is a sleeping bag, a high-density woven fabric is used for both the top sheet and the back sheet. Since there is no partition between the material and the feathers, there is a problem that the moisture absorption / release water-absorbing exothermic fiber material and feathers are mixed during use, and the characteristics of the feathers are lost.
JP-A-8-56797

This invention uses a feather and a highly hygroscopic hygroscopic exothermic fiber in combination with a comforter filler, and absorbs sweat with the above hygroscopic exothermic fiber, replacing it with heat, and replacing it with heat. On the other hand, the above-mentioned heat divergence is prevented by feathers to obtain a refreshing heat retaining property.

In this invention, the filler layer of the comforter is divided into two layers, a lower layer on the human body side and an upper layer on the opposite side, and the lower layer filler is used by mixing highly hygroscopic exothermic fibers and normal futon cotton, Feather is used as a filler in the layer. Then, a moisture-permeable highly breathable fabric is used as a lining covering the lower surface of the lower layer, and a high-density woven fabric that does not cause the above-mentioned feathers to blow out is used as a surface covering the upper surface of the upper layer. In addition, as a center that divides the lower layer and the upper layer, a light-weight medium density woven fabric having almost no blowing of the feathers and having air permeability between the lining and the outer layer is used.

The highly hygroscopic exothermic fiber used in the present invention has a higher moisture absorption / release property than ordinary rayon or wool fiber, and preferably has a moisture absorption rate of 20% or more under conditions of a temperature of 20 ° C. and RH of 65%, and heat of adsorption during moisture absorption. A polyacrylate fiber (Toyobo Co., Ltd.) which is similar to the moisture-absorbing / releasing moisture-exothermic fiber described in Patent Document 2 and has been modified to be hydrophilic. Manufactured, trade name “moiscare”, moisture absorption 40%). Also, a highly hygroscopic exothermic wool (made by Toyobo Co., Ltd., trade name “Omega Wool”), which has been improved by modifying ordinary wool fiber to further improve its hygroscopicity and generate heat of adsorption when it absorbs moisture. 25%) is also possible.

In the comforter of the present invention, the filler layer is divided into two layers, a lower layer and an upper layer, and the above-mentioned highly hygroscopic exothermic fiber and normal comforter cotton, such as synthetic cotton and wool cotton, are used as the lower layer filler on the human body side. And a moisture-permeable, highly breathable fabric is used on the lining that covers the lower surface, so this lower layer forms a moisture-absorbing layer, and sweat generated from the human body at bedtime quickly wicks the lining. It passes through and is absorbed by the highly hygroscopic exothermic fiber that is the filler of the lower layer, and this lower layer repeatedly absorbs and releases moisture (breathing) in response to changes in environmental humidity. Increase temperature and decrease humidity. In addition, since a mixture of highly hygroscopic exothermic fibers and normal futon cotton is used for the lower layer, felting of the highly hygroscopic exothermic fibers is prevented, and good moisture permeability is maintained.

And since the upper surface of the lower layer is in contact with the feathers of the upper layer through the center, the center is formed of a lightweight medium density fabric having air permeability between the lining and the outer surface. The warm and fresh air obtained in the lower layer smoothly moves to the feathers that are the filler in the upper layer. The outer layer covering the upper surface of the upper layer is formed of a high-density fabric that prevents the blowing of feathers, and the inner layer between the lower layer is almost free of the blowing of the feathers, and the air permeability is intermediate between the lining and the outer layer. Because it is made of lightweight medium-density fabric, the heat retention of the feathers filled in the upper layer is not impaired, and the feathers are less likely to blow out from the upper layer, so the feathers are highly hygroscopic exothermic fibers in the lower layer. And will not mix.

The normal futon cotton mixed with the above highly hygroscopic exothermic fiber is preferably a synthetic cotton, particularly a hollow polyester fiber processed with a silicone resin. Further, by using a mixture of the highly hygroscopic exothermic fiber and the hollow polyester fiber processed with the above-mentioned silicone resin, the lower layer can be more effectively prevented from being felt, and the heat retention and moisture permeability are further improved. . The mixing ratio is preferably 20 to 50% by weight of the total amount of the lower layer, and if it is less than 20% by weight, the effect of the highly hygroscopic exothermic fiber cannot be obtained. And moisture permeability are insufficient. The weight of the entire lower layer is preferably 150 to 350 g / m ² . The above highly hygroscopic exothermic fiber is particularly preferable in that the polyacrylate fiber modified to be hydrophilic has a high moisture absorption rate.

On the other hand, the filling material of the upper layer and the feathers are used, the basis weight of the feathers, 150 to 350 g / m ² is preferred. The proportion of down in the feathers is preferably 80% or more.

The moisture-permeable and highly breathable fabric constituting the lining is formed of a knitted fabric having a multilayer structure of two or more layers, and one side layer thereof is formed of a hygroscopic yarn containing a hygroscopic natural fiber. It is preferable that the side layer is formed of a moisture permeable yarn made of moisture permeable synthetic fiber, and is attached so that the one side layer made of the above hygroscopic yarn faces the skin side, thereby filling sweat generated from the human body. The material can be quickly transferred to the material side, and a soft texture can be obtained. Incidentally, air permeability of this backing is preferably 30~100cc / cm ² / sec, the air permeability of moisture migration is lowered less than 30 cc / cm ² / sec, exceeds 100 cc / cm ² / sec in the opposite, The lower layer filler is likely to leak. Also, the basis weight is preferably from 200 to 400 g / m ^2, easily balloon is filler is less than 200 g / m ^2, futon heavy exceeds 400 g / m ² on the opposite.

In addition, the high-density fabric constituting the outer fabric is a fabric that can prevent the blowing of feathers and has excellent airtightness that does not allow warm air to escape, and is composed of natural fibers, synthetic fibers, or composite fibers of natural fibers and synthetic fibers. Used, made by weaving. The air permeability of this surface is preferably 0.5 to ³ cc / cm ² / sec. When the air permeability is less than 0.5 cc / cm ² / sec, the futon swells in a balloon shape when the air expands, and the skin along the skin worsens. On the other hand, when it exceeds 3 cc / cm ² / sec, feathers are easily blown out. Also, the basis weight is preferably 90~150g / m ^2, occurs blowing feathers is less than 90 g / m ^2, becomes 150 g / m ² exceeds the dough Gasatsuku result in the opposite.

In addition, the medium breathable woven fabric constituting the middle fabric is a woven fabric having almost no feather blowing and having an intermediate air permeability between the lining and the outer fabric. Its air permeability is preferably 2~5cc / cm ² / sec, air permeability is insufficient moisture migration is less than 2 cc / cm ² / sec, exceeds 5 cc / cm ² / sec Conversely, occurs blowing feathers . Also, the basis weight is preferably 40~90g / m ^2, easily torn in rachis of feathers basis weight is less than 40 g / m ^2, moisture migration becomes insufficient and when it exceeds 90 g / m ² on the opposite.

On the lower surface of the medium breathable fabric constituting the inner fabric, a thin fabric made of synthetic fiber having a breathability similar to that of the lining and moisture permeability similar to the other side layer of the lining is provided. Stack the upper and lower layers of the above-mentioned medium breathable fabric, and form the upper and lower layers of the above-mentioned thin fabric made of synthetic fibers having moisture permeability as the outer layer of the lower layer. Can be used as a comforter. In this case, it is possible to individually sew the upper fabric composed of the outer fabric, the upper layer, and the medium breathable fabric, and the lower fabric composed of the thin fabric, the lower layer, and the lining.

In the present invention, the lower layer and the upper layer can each be quilted by a conventional method. This quilting is performed by filling the upper layer and the lower layer with the filler, and then the outer layer, the middle layer and the upper layer. A tapping quilt that stitches the lining directly may be used, or a three-dimensional quilt that sews gusset tape in the form of vertical and horizontal screens between the outer material and the inner material and between the inner material and the inner material before filling with the filler. The filler is blown into each square after quilting. Alternatively, the lower layer can be a quilted quilt and the upper layer can be a three-dimensional quilted quilt.

In the comforter according to the present invention, sweat generated from the human body at the time of sleeping quickly passes through the lining and is absorbed by the highly hygroscopic exothermic fibers in the lower layer, generating heat of adsorption due to the moisture absorption and increasing the inner temperature of the comforter. And reduce the humidity. In addition, since a mixture of the highly hygroscopic exothermic fiber and synthetic cotton is used, the high hygroscopic exothermic fiber is prevented from being felt and the moisture permeability is maintained well. And the warm and refreshing air obtained by the lower layer transfers to the feathers of the upper layer, and the heat retention as a comforter is improved. In addition, since the feathers do not blow out from the upper layer, the heat retention is not lowered, and the feathers are not mixed with the highly hygroscopic exothermic fibers in the lower layer.

In particular, in the invention according to claim 2, felting of the lower layer is prevented more satisfactorily, and heat retention and moisture permeability are improved. Moreover, the invention which concerns on Claim 3 is excellent in the moisture permeability of a lining. In the invention according to claim 4, a comforter that is warm, fresh and excellent in heat retention can be easily obtained.

Embodiment 1
In the comforter 10 shown in FIG. 1, 11 is a lining, 12 is a lower layer of a filler, 13 is a center, 14 is an upper layer of a filler, 15 is a front material, and the lining 11, the middle 13 and the outer material 15 are They are integrated by a suture line 16 along the peripheral edge. Further, the lining 11 and the middle 13 are sewn into vertical and horizontal grids by tapping quilted seams 17 performed after filling the lower layer 12, and the vertical and horizontal grids are formed between the middle 13 and the surface 15 by gusset tape 18. It is divided into shapes. The gusset tape 18 has a lower edge sewn to the center fabric 13 and an upper edge sewn to the outer fabric 15.

The lining 11 is formed of a moisture permeable highly breathable knitted fabric having a two-layer structure. That is, a weft knitted fabric or a warp knitted fabric having a double-sided structure in which a natural fiber yarn such as cotton yarn having excellent moisture absorption forms one side and a synthetic fiber yarn such as polyester fiber yarn having excellent moisture permeability forms the other side. Prepare a double-sided knitted fabric with an air permeability of 30 to 100 cc / cm ² / sec and a basis weight of 200 to 400 g / m ² , and use this double-sided knitted fabric so that one side made of natural fiber yarn faces the skin side. It is done.

The outer surface 15 is a dense high-density fabric woven using relatively thin cotton yarn or polyester / cotton blended yarn for warp and weft. That is, the air permeability is set to 0.5 to ³ cc / cm ² / sec, and the basis weight is set to 90 to 150 g / m ² .

In addition, the inner fabric 13 is woven using a relatively thin synthetic fiber multifilament yarn, for example, a polyester multifilament yarn, with a slightly higher air permeability and a lower basis weight than the above outer fabric. That is, the air permeability is set to ^{2 to 5} cc / cm ² / sec, and the basis weight is set to 40 to 90 g / m ² .

The lining 11, the middle 13 and the outer 15 are each cut into predetermined dimensions. Then, the lining 11 and the center 13 are sewn into a bag shape, and the inside is filled with a mixture of highly hygroscopic exothermic polyacrylate fiber and hollow polyester fiber processed with silicone resin for the lower layer 12, Are closed, the lining 11 and the center 13 are stitched together by the tapping quilt seams 17, and at the same time the lower layer 12 of the filler is partitioned into a grid. The weight mixing ratio of the polyacrylate fiber and the hollow polyester fiber is set to 20/80 to 50/50, and the basis weight is set to 150 to 350 g / m ² .

On the other hand, the outer fabric 15 is connected to the inner fabric 13 with a gusset tape 18 having a width of 30 to 80 mm made of synthetic fiber fabric, and then the outer periphery of the outer fabric 15, the intermediate fabric 13 and the lining 11 is stitched. Then, the upper layer 14 is formed by filling the meshes formed by the gusset tape 18 with the feathers between the middle ground 13 and the outer surface 15. The feathers of the upper layer 14 are mainly down, have a feather content of less than 15% by weight, and have a basis weight of 150 to 350 g / m ² .

Embodiment 2
In FIG. 2, 21 is a lower futon and 31 is an upper futon. The lower futon 21 is obtained by filling a filling material 23 between the outer material 24 and the lining 22 and applying a hitting quilt, and 25 indicates a seam of the hitting quilt. The upper cloth 31 is composed of an outer cloth 34, a filler 33, a lining 32, and a gusset tape 35. The upper cloth 31 is overlapped with the lower cloth 21 and the periphery is stitched, or a plurality of locations on both opposing surfaces are touched. By joining with a fastener, a hook or the like, it is formed into one comforter.

In this case, a non-woven fabric having a permeability of 10 to ²⁰ cc / cm ² / second and a basis weight of 20 to 50 g / m ^{2 made} of a synthetic fiber such as polyester is used for the outer fabric 24 of the lower futon 21. As the filler 23, the same material as the backing 11 and the lower layer 12 of the first embodiment is used. Further, the outer fabric 34, the filler 33, the lining 32, and the gusset tape 35 of the upper futon 31 are the same as the outer fabric 15, the upper layer 14, the middle fabric 13 and the gusset tape 18 of the first embodiment, respectively.

Example 1
The comforter 10 of the first embodiment was manufactured as a prototype. As the lining 11, a double-sided knitted fabric composed of cotton yarn (40 count) and polyester multifilament yarn (50 denier) smooth was prepared. The air permeability was 70 cc / cm ² / sec, and the basis weight was 320 g / m ² . Further, as the outer material 15, cotton yarn (80 count) is used for the warp and weft, the warp density is 210 yarns / inch, the weft density is 195 yarns / inch, the air permeability is 1.5 cc / cm ² / second, and the basis weight is 120 g. A fabric of / m ² was prepared. In addition, polyester multifilament yarn (50 denier) is used for the warp and weft as the center 13, the warp density is 164 yarns / inch, the weft density is 120 yarns / inch, the air permeability is 3 cc / cm ² / sec, and the basis weight is Of 60 g / m ² was prepared.

A bag is formed by the lining 11 and the middle 13, and processed with a highly hygroscopic exothermic polyacrylate fiber (trade name “moiscare”, fineness 2.2 denier) and silicone resin between them. Filled with mixed cotton (mixing ratio 4/6) of the polyester hollow fiber (made by Toyobo Co., Ltd., trade name “Conforoft”, fineness 6 denier, hollow rate 30%) (approx. 200 g / m ² ) Later, the lining 11 and the middle 13 were hit and joined with a quilt. Further, the midland 13 and the outer material 15 are joined with a gusset tape 18 having a width of 5 cm to form a three-dimensional gusset, the lining 11, the inner material 13 and the outer material 15 are overlapped, and the periphery is stitched. Feathers (85/15 mixture of down and feathers) were filled into each of the squares (weight per unit area 250 g / m ² ).

Example 2
In Example 1 above, instead of the highly hygroscopic exothermic polyacrylate fiber (trade name “moiscare”, fineness 2.2 denier, manufactured by Toyobo Co., Ltd.) of the lower layer 12, the wool is modified to absorb the moisture. Using a modified wool obtained by enhancing the heat generation function (trade name “Omega Wool” manufactured by Toyobo Co., Ltd.), the modified wool and the polyester hollow fiber of Example 1 are mixed at a lower ratio of 50/50. The comforter of Example 2 was made as a prototype in the same manner as in Example 1 except that it was used for the layer 12.

Comparative Example 1
In Example 1 above, the center 13 has a warp density of 210 yarns / inch of cotton yarn (80 count), a weft density of 195 yarns / inch, an air permeability of 1.5 cc / cm ² / second, and a basis weight of 130 g / m. A comforter of Comparative Example 1 was made as a prototype in the same manner as in Example 1 except that the high-density fabric of ² was used.

Comparative Example 2
Cotton yarn (80 count) is used for warp and weft to weave a high-density fabric with a warp density of 210 yarns / inch, a weft density of 195 yarns / inch, an air permeability of 1.5 cc / cm ² / second, and a basis weight of 120 g / m ² This fabric is used for the outer and lining, and feathers (85/15 mixture of down and feather) are filled between the outer and lining at a basis weight of 450 g / m ^2. The comforter of Example 2 was produced.

About the comforter of said Example 1, 2 and Comparative Example 1, 2, the performance was compared by the ASTM type | mold heat retention performance test. That is, assuming a winter season, a hot plate (area 10 × 10 cm) having a temperature of 36 ° C. is placed on a table in a room with a room temperature of 10 ° C. and RH 65%, and a moisture content of 200% is moistened with water on the upper surface of the hot plate. Attach the filter paper, and support the comforter of the sample at a height 2 cm above it, with the lining facing down, and measure the change in temperature and humidity on the surface of this comforter directly above the hot plate. The results in Table 1 were obtained.

As shown in Table 1 above, in Examples 1 and 2 and Comparative Example 1 in which feathers and highly hygroscopic exothermic fibers were used in combination, the temperature in the futon increased with the passage of time, and after 60 minutes, only the feathers were compared. The difference from Example 2 was about 1 ° C. and the increase in humidity was small. The difference was 13% in Example 1, 11% in Example 2, and 4% in Comparative Example 1. In Examples 1 and 2 using a breathable woven fabric in the middle, the increase in humidity is smaller than in Comparative Example 1 using a high-density woven fabric in the middle, and the difference after 60 minutes is that in Example 1. 7% and Example 2 was 5%.

1 is a cross-sectional view of Embodiment 1. FIG. 6 is a cross-sectional view of a second embodiment. FIG.

Explanation of symbols

10: Futon 11: Lining 12: Lower layer 13: Middle layer 14: Upper layer 15: Outer fabric 16: Suture line 17: Sewing portion of hitting quilt 18: Mat tape for three-dimensional quilt 21: Lower futon, 31: Upper futons 22, 32 : Lining 23: Filler (lower layer)
33: Filler (upper layer)
24, 34: Surface 25: Tapping quilt stitching portion 35: Solid quilt gusset

Claims (4)

The comforter's filler layer consists of two layers, the lower layer on the human body side and the upper layer on the opposite side, the lower layer filler consists of a mixture of highly hygroscopic exothermic fibers and normal comforter cotton, and the upper layer filler Made of feathers, the lining covering the lower surface of the lower layer is formed of a moisture-permeable highly breathable fabric, and the outer surface covering the upper surface of the upper layer is formed of a high-density woven fabric that does not blow off the feathers. The comforter is characterized in that the center that defines the upper layer is formed of a light-weight medium-density fabric that has almost no blowing of the feathers and that has air permeability between the lining and the outer surface. The comforter according to claim 1, wherein the filler of the lower layer is a mixture of a highly hygroscopic exothermic polyacrylate fiber or a highly hygroscopic exothermic modified wool fiber and a hollow polyester fiber processed with a silicone resin. A highly breathable fabric constituting the lining is made of a knitted fabric having a multilayer structure, one side layer of which is formed of a hygroscopic yarn containing a hygroscopic natural fiber, and the other side layer is made of a moisture permeable synthetic fiber. The comforter according to claim 1 or 2, wherein the comforter is attached so that one side layer made of the hygroscopic yarn faces the skin side. The highly permeable fabric of the lining consists of a knitted fabric with an air permeability of 30 to 100 cc / cm ² / sec and a basis weight of 200 to 400 g / m ² , and the high density fabric of the outer fabric has an air permeability of 0.5 to ³ cc / cm ² / sec. The fabric is made of a woven fabric having a basis weight of 90 to 150 g / m ² , and the lightweight medium-density fabric in the center is made of a woven fabric having a permeability of ^{2 to 5} cc / cm ² / sec and a basis weight of 40 to 90 g / m ^2. Comforter.

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