JP6346929B2 - Insulation material - Google Patents

Description

  The present invention relates to a heat insulating member, and more particularly, to a heat insulating member such as clothing or bedding provided with an intermediate material such as a down or a feather.

  In general, clothing such as down jackets and down pants that contain intermediate materials such as down and feathers between the outer material and the lining, and thermal insulation materials including bedding such as futons and sleeping bags are made so that the inner materials are not biased. And a lining are stitched together to form a number of compartments, and a medium is housed in the compartments. In such a heat insulating member, since there is no intermediate material at the seam which is the boundary of each section, there is a problem that the warm air inside is dissipated from here and the heat retention is impaired, and the intermediate material from the seam is There was a problem of spouting. As a heat-insulating member to cope with these problems, two gusset parts formed from flat sheets are stacked and bonded to form a gusset, and the front and back cloths are stacked and bonded on both sides of the gusset A heat insulating member that forms a three-dimensional quilt component that forms a compartment and fills the compartment with feathers is known (see, for example, Patent Document 1).

JP 2006-192613 A

  However, in the heat insulating member having a structure as described in Patent Document 1, a process of cutting out a planar sheet to form a gusset part, heat is applied to the ends of the gusset part and the periphery of each of the two gusset parts. Since a step of providing a bonding means such as an adhesive tape and a step of permanently bonding the bonding means by ironing are necessary, there is a problem that the number of manufacturing steps is large and the manufacturing takes time.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a heat insulating member that is less biased, has excellent heat retaining performance, and is easy to manufacture.

The heat insulating member of the present invention that has been able to solve the above-mentioned problems has an outer surface and a lining, and is provided between the outer surface and the inner surface, between the outer surface and the inner surface, and between the inner surface and the inner surface. A heat insulating member having an intermediate material arranged, wherein the intermediate is a non-woven fabric having holes, and the opening ratio calculated by the following method is 5% or more and 30% or less. .
(Opening ratio calculation method)
The center is cut into a square of 100 mm length and 100 mm width as a sample, and the aperture ratio is calculated by the following formula.
Opening ratio (%) = total area of all the holes in the sample (mm ² ) / (vertical length of the sample (mm) × horizontal length of the sample (mm)) × 100

  In the heat insulating member of the present invention, when the center has a hole, a part of the intermediate material enters the hole. The intermediate material that has entered the hole is intertwined with the intermediate material that exists between the outer material and the intermediate material, or the intermediate material that exists between the inner material and the inner material. When the intermediate material is entangled, the movement of the intermediate material in the in-plane direction of the intermediate is hindered, and the heat insulation performance can be maintained in the heat insulating member.

  In the heat insulating member of the present invention, it is preferable that there are a plurality of holes in one center.

In the heat insulating member of the present invention, the size of the hole is preferably 15 mm ² or more and 2000 mm ² or less.

  In the heat insulating member of the present invention, the thickness of the center is preferably 1 mm or more and 50 mm or less.

  In the heat insulating member of the present invention, it is preferable that the inside is composed of a dry nonwoven fabric.

  In the heat insulating member of the present invention, it is preferable that the center is made of a non-woven fabric directly.

  In the heat insulating member of the present invention, the outer material and the lining material are preferably made of woven or knitted fabric.

  The heat insulating member of the present invention is a heat insulating member having an intermediate material arranged between the outer material and the intermediate material and between the lining material and the intermediate material, wherein the intermediate material is a nonwoven fabric having holes. And By having a hole in the center, it is possible to prevent the center material from being biased in the in-plane direction of the center, not only immediately after manufacturing, but also after use for a certain period of time, and the heat insulating member has excellent heat retaining performance. be able to.

Sectional drawing of the heat insulation member in embodiment of this invention is represented. The top view of the center in embodiment of this invention is represented. Sectional drawing of the conventional heat insulation member is represented.

  Hereinafter, the heat insulating member according to the present invention will be specifically described with reference to the drawings. However, the present invention is not limited to the illustrated examples, and may be appropriately changed within a range that can be adapted to the purpose described above and below. It is also possible to carry out by adding any of these, and they are all included in the technical scope of the present invention.

  The heat insulating member according to the present invention has an outer surface and a lining, and has a center disposed between the outer surface and the inner surface, and an intermediate material disposed between the outer surface and the inner surface. In the heat insulating member, the center is a nonwoven fabric having holes, and the calculated opening ratio is 5% or more and 30% or less. Hereinafter, the outer material, the lining, the inner material provided between the outer material and the inner material, the intermediate material between the outer material and the inner material, and the intermediate material between the inner material and the inner material will be described.

  In the present invention, the outer material means a fabric on the outside air side when viewed from the user when the heat insulating member is used. Lining means the fabric on the user's side opposite to the outer side.

  The fabric constituting the outer fabric has at least one layer of a woven fabric, a knitted fabric, a non-woven fabric, and a material in which a resin is attached to any of these. The fabric constituting the lining also has at least one layer of a woven fabric, a knitted fabric, a non-woven fabric, and a material in which a resin is attached to any of these, similarly to the outer fabric. Especially, it is preferable that a surface material and a lining are each comprised from the textile fabric or the knitted fabric. If the outer fabric and the lining are woven or knitted, the air permeability and moisture permeability of the heat insulating member will be improved, and the feeling of unevenness during use can be reduced. Therefore, when the heat insulating member is used for clothing, it is comfortable to wear, and when the heat insulating member is used for bedding, it is comfortable to use.

  The fibers forming the outer fabric are not particularly limited, and examples include natural fibers such as cotton and silk, synthetic fibers such as polyurethane, polyester, polyethylene, and nylon, regenerated fibers such as rayon, and semi-synthetic fibers such as acetate. . The fiber forming the lining fabric is not particularly limited, as is the case with the outer fabric. Especially, it is preferable that each fiber which comprises a surface material and a lining is a synthetic fiber. If the fibers constituting the outer material and the lining are synthetic fibers, the strength of the heat insulating member is increased.

  The fabric constituting the center is preferably a non-woven fabric. The fibers constituting the nonwoven fabric are not particularly limited. For example, natural fibers such as cotton, hemp, and wool, synthetic fibers such as polyester, nylon, and polypropylene, regenerated fibers such as rayon, and semi-synthetic fibers such as acetate. Good. Among them, the fiber constituting the center is preferably a synthetic fiber, and more preferably polyester or nylon. If the fibers that make up the center are synthetic fibers, the strength of the center will increase, and if it is polyester or nylon, it is a high-strength material, so the fiber diameter must be reduced while maintaining the required strength. As a result, the center can be reduced in weight.

  The kind of nonwoven fabric which comprises a center is not specifically limited, For example, a wet nonwoven fabric, a dry nonwoven fabric, a direct nonwoven fabric etc. are mentioned. As defined in JIS L 0222, “wet nonwoven fabric” is a nonwoven fabric made by one or two or more bonding methods in which paper is dispersed, fibers are dispersed in water, and they are accumulated in a sheet form. Is shown. As defined in JIS L 0222, dry nonwoven fabrics use “cards in the spinning process, or fibers that are dispersed in the air are collected into a sheet, and one or more bonding methods are used. "Made nonwoven fabric". The direct nonwoven fabric is a long fiber nonwoven fabric (continuous fiber nonwoven fabric), and refers to a nonwoven fabric produced by a direct spinning method in which a nonwoven fabric is produced directly from a spinning process of long fibers. Especially, it is preferable that the nonwoven fabric which comprises a center is a dry nonwoven fabric or a direct nonwoven fabric. If the inside is composed of a dry nonwoven fabric, the inside becomes bulky, so that the inside material can easily enter the hole in the inside, and the state of entering the hole is easily maintained, preventing the unevenness of the inside material Becomes higher. If the center is directly made of nonwoven fabric, the strength of the center is increased.

  As a dry nonwoven fabric manufacturing method, there are a chemical bond method, a thermal bond method, a needle punch method, and the like. When the inside is a dry nonwoven fabric, the chemical bond method is particularly preferable. If the inside is a chemical bond type dry nonwoven fabric, the inside becomes flexible and the comfort of the heat insulating member can be improved. Moreover, in the chemical bond method, the method of attaching the adhesive to the fiber includes spraying and impregnation, but in order to make the center more bulky, a method of attaching the adhesive by spraying is preferable.

  Examples of the direct nonwoven fabric manufacturing method include a spunbond method, a melt blow method, and a flash spinning method. In the case where the center is a direct nonwoven fabric, the spunbond method is particularly preferable. If the inner fabric is a spunbonded direct nonwoven fabric, the strength of the inner fabric becomes higher and the dimensional stability at the time of manufacturing the nonwoven fabric is excellent, so that productivity is improved.

  The thickness of the center is preferably 1 mm or more, more preferably 3 mm or more, and further preferably 5 mm or more. When the lower limit of the thickness of the center is this value, the state where the center is in the hole in the center is maintained, and the effect of preventing the unevenness of the center is increased. Moreover, it is preferable that the thickness of a center is 50 mm or less, It is more preferable that it is 35 mm or less, It is further more preferable that it is 20 mm or less. When the upper limit of the thickness of the center is this value, the heat insulating member can be reduced in weight, and the usability of the heat insulating member can be improved.

  The thickness of the center is based on the method A of JIS L 1913, and the pressure of a load of 0.5 kPa is measured over 10 seconds for 10 test pieces.

  The number of the center is not particularly limited, and may be a single layer or a stacked layer. If the center is a single layer, the heat insulating member can be reduced in weight. If the center is laminated, the heat insulating effect of the heat insulating member can be further enhanced.

  In addition to the outer material, the middle material, and the lining material, other fabrics may be present. For example, if another fabric exists between the outer fabric and the inner fabric, and the other fabric has a hole like the inner fabric, the inner material will be entangled in the other fabric as well as the inner fabric. In addition, it is possible to more effectively prevent the middle material from being biased.

  In the present invention, the center has a hole penetrating in the thickness direction of the center.

  The number of holes in the center of one sheet may be singular or plural, but preferably plural. Due to the fact that there are multiple holes in one center, the center material that exists between the outer material and the inner surface, and the inner material that exists between the inner surface and the inner surface enter the plurality of holes. Since these are intertwined with each other, the effect of preventing the movement of the center of the intermediate material in the in-plane direction is further enhanced.

  The cross-sectional shape in the depth direction of the hole may be, for example, a circle, an ellipse, a triangle, or a quadrangle, and is not particularly limited, but is preferably a circle or an ellipse. If the shape of the hole is circular or elliptical, the load applied to the hole does not concentrate on one point but is dispersed throughout the hole, thereby increasing the strength of the center.

Atmosphere of the pores is preferably 15 mm ² or more, more preferably 40 mm ² or more, more preferably 75 mm ² or more. When the lower limit of the size of the hole is this value, the intermediate material can pass through the hole. For example, in the process of filling the heat insulation member with the intermediate material, if the intermediate material is put between the outer material and the intermediate material, and the heat insulating member is swallowed, the intermediate material can also be present between the lining material and the intermediate material. . Therefore, by placing the intermediate material between the outer material and the intermediate material, or between the inner material and the inner material, the intermediate material is applied both between the outer material and the intermediate material and between the inner material and the inner material. Can be sent. Further, the size of the hole is preferably 2000 mm ² or less, more preferably 1000 mm ² or less, and further preferably 350 mm ² or less. Because the upper limit of the size of the hole is this value, the intermediate material that exists between the outer material and the intermediate material, and the intermediate material that exists between the lining material and the intermediate material enter the hole. And the effect of preventing the movement of the intermediate material in the in-plane direction of the center is improved.

  When there are a plurality of holes in one center, the shape and size of each hole may be different or the same. For example, when the size of a hole at a specific location is larger than the size of a hole at another location in a single center, The intermediate material between the outer material and the intermediate material and the intermediate material between the lining material and the intermediate material are less likely to be entangled with each other than the intermediate material entering the interior. Therefore, in the vicinity of the large hole, the intermediate material is less likely to stay compared to other locations, and the amount of adhesion of the intermediate material is less than other locations. Since the adhering amount of the intermediate material is small in the vicinity of the large hole, the heat retaining property in the vicinity of the large hole can be lowered as compared with the heat retaining properties in the other portions. Therefore, it is possible to control the heat retaining property of the heat insulating member by changing the size and shape of the hole, for example, by increasing the diameter of the hole in a place where heat is easily accumulated and uncomfortable feeling is felt when the heat insulating member is used. Further, when the shape and size of the holes are unified in one center, the intermediate material uniformly adheres to the entire center, so that the heat insulating property of the entire heat insulating member becomes uniform.

  When there are a plurality of holes in one center, the interval between the holes may be constant or different. When the interval between the holes is constant, the adhesion of the intermediate material to the center becomes uniform, so that the heat insulating property of the entire heat insulating member becomes uniform. When the interval between the holes is different, for example, in the medium material, there are more holes in the portion where the interval between the holes is narrower than other portions. Since the inner material that has entered the hole is entangled with the intermediate material between the outer material and the inner material, and the intermediate material between the inner material and the inner material, the part where the hole interval is narrower than the other part. It becomes easier to stay inside. For this reason, the amount of attachment of the intermediate material is larger in the portion where the gap between the holes is narrower than in other portions. In locations where the gap between the holes is narrow, the amount of medium material attached is large, so that the heat retention can be improved. Therefore, when the heat insulating member is used, it is possible to control the heat retaining property of the heat insulating member by changing the hole interval, for example, by narrowing the hole interval at a place where it is easy to feel cold.

In the present invention, the opening ratio of the center is calculated by the following method and is 5% or more and 30% or less.
(Opening ratio calculation method)
The center is cut into a square having a length of 100 mm and a width of 100 mm as a sample, and the aperture ratio is calculated by the following equation.
Opening ratio (%) = total area of all holes in the sample (mm ² ) / (vertical length of the sample (mm) × horizontal length of the sample (mm)) × 100

The aperture ratio in the present invention is calculated as follows. A square sample having a length of 100 mm and a width of 100 mm is cut out from an arbitrary portion of the center, and the areas of all the holes in the sample are calculated. The aperture ratio (%) is calculated by the formula: total area of all holes in the sample (mm ² ) / (vertical length of the sample (mm) × horizontal length of the sample (mm)) × 100.

  The aperture ratio is preferably 7% or more, more preferably 10% or more, and further preferably 12% or more. When the lower limit of the opening ratio is this value, the intermediate material can easily enter the hole in the center, and the effect of preventing the unevenness of the intermediate material is improved. The aperture ratio is preferably 28% or less, more preferably 25% or less, and further preferably 23% or less. The upper limit of the opening ratio is this value, so that the medium material in the hole is easily entangled with the medium material between the outer material and the middle material, and the medium material between the inner material and the inner material. Movement in the in-plane direction of the center is prevented.

  The material of the intermediate material is not particularly limited, and examples thereof include down, feathers of feathers, cotton that is a fiber lump of natural fibers and synthetic fibers, and the like. Especially, it is preferable that an inside material contains at least any one of a down, a feather, and cotton. If the intermediate material contains any one of down, feather, and cotton, it will have sufficient heat retention properties, and the intermediate materials will be easily entangled with each other. Can be improved.

  An embodiment of a heat insulating member according to the present invention is shown in FIGS. The heat insulating member 1 according to the present invention includes a surface material 2 and a lining material 3, and includes a middle material 4 provided between the outer material 2 and the lining material 3, between the outer material 2 and the middle material 4, and between the lining material 3 and the middle material 4. It has a middle material 5 arranged between them. The center 4 is a non-woven fabric having holes 6, and the opening rate of the center 4 is 5% or more and 30% or less. The intermediate material 5 enters the hole 6 in the intermediate material 4, and the intermediate material 5 in the hole 6 exists between the outer material 2 and the intermediate material 4, or between the lining 3 and the intermediate material 4. Intertwining with the intermediate material 5 prevents the intermediate material 5 from being biased. Therefore, as in the conventional heat insulating member 11 shown in FIG. 3, it is possible to prevent the unevenness of the intermediate material 14 without forming the section 16 for accommodating the intermediate material 14 by sewing the outer surface 12 and the lining 13 together.

  Moreover, in the heat insulation member of this invention, since it is not necessary to provide the division which accommodates a middle material, it can be set as the heat insulation member in which the seam which is a boundary of each division does not exist. Therefore, this invention also has the effect which improves the designability of a heat insulation member.

  When using feathers such as down or feather for the inner material, the surface and lining are processed to apply heat and pressure to prevent the feathers from blowing out from the fabric or to coat the resin, such as down proofing It is common to use fabric. In the heat insulating member of the present invention, the movement of the middle material is hindered by the middle place and prevents the feathers from being blown out. Therefore, it is not necessary to use a fabric having a down proof process applied to the outer material and the lining material. When a fabric that has not been down-proofed is used for the outer material and the lining material, the breathability and moisture permeability of the heat insulating member can be improved. When fabrics with down proofing are used for the outer and lining, prevent the feathers from being blown out during the process of blowing the feathers between the outer and inner linings and between the lining and the inner lining. Manufacturing efficiency can be increased.

  Specific examples of the heat insulating member include clothing, footwear, bedding and the like provided with an intermediate material. The clothing includes coats, down jackets, jumpers, vests such as vests, trousers, skirts and other garments, dresses, coveralls such as ties, and garments such as mufflers, hats and gloves. Footwear includes boots such as sneakers and boots such as boots. The bedding includes a futon, a sleeping bag, a kotatsu futon, a pillow, and a cushion.

  As described above, the heat insulating member of the present invention has a front surface and a lining, and is disposed between a front surface and a back surface, between the front surface and the back surface, and between the lining and the back surface. A heat insulating member having an intermediate material, wherein the intermediate is a non-woven fabric having holes, and the calculated opening ratio is 5% or more and 30% or less. By having such a configuration, it is possible to prevent the middle material from being biased, and the heat insulating member can have excellent heat retention performance.

1: Insulating member 2: Outer surface 3: Lining 4: Centering material 5: Middle material 6: Hole 11: Conventional heat insulating member 12: Outer material 13: Lining material 14: Middle material 15: Seam 16: Section

Claims (7)

Has a front and lining,
A midland provided between the outer fabric and the lining,
A heat insulating member having an intermediate material arranged between the outer material and the intermediate material, and between the lining and the intermediate material,
The said center is a nonwoven fabric which has a hole whose magnitude | size is 15 mm < ² > or more, and the aperture ratio computed by the following method is 5% or more and 30% or less, The heat insulation member characterized by the above-mentioned.
(Opening ratio calculation method)
The center is cut into a square having a length of 100 mm and a width of 100 mm as a sample, and the aperture ratio is calculated by the following equation.
Opening ratio (%) = the sample total area of all the holes in the ^(mm 2) / (the vertical length of the sample (mm) × the sample of lateral length (mm)) × 100   The heat insulating member according to claim 1, wherein there are a plurality of the holes in one center. The magnitude of at least one of said holes, 2 000 mm ² or less thermally insulating member according to claim 1 or 2.   The thickness of the said center is 1 mm or more and 50 mm or less, The heat insulation member as described in any one of Claims 1-3.   The said center is a heat insulation member as described in any one of Claims 1-4 comprised from the dry-type nonwoven fabric.   The said center is a heat insulation member as described in any one of Claims 1-4 comprised directly from the nonwoven fabric.   The said outer material and the said lining are the heat insulation members as described in any one of Claims 1-6 comprised from the woven / knitted fabric.

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