JP6903308B2 - Mattress cover and mattress using it - Google Patents

Description

The present invention relates to a cover covering a mattress and a mattress including the cover and a mattress score.

High-resilience bed mattresses and mattress pads using a filament three-dimensional bond obtained by three-dimensionally fusion-bonding filaments made of a thermoplastic resin have been attracting attention. This mattress has excellent body pressure dispersibility, is easy to turn over, and can be washed with water even if it gets dirty.

Bed mattresses and mattress pads as described above are rarely used only with their core material (mattress score), and usually prevent dirt from adhering, improve texture (tactile sensation), and retain heat. For improvement, it is used with a mattress cover as shown in FIG. 6 (see Patent Document 1).

Even in a mattress that uses a filament three-dimensional bond as described above for the mattress score, when using it as a mattress for a bed, first, a mesh-like cover knitted with a thread having a fiber diameter of 200 dtex or less around the mattress score. It is covered with (hereinafter, mesh cover), and the outside is covered with a heat-retaining cover (mattress cover) made of a quilt cloth or the like having good breathability and good texture.

With this configuration, the mattress using the filament three-dimensional composite body does not impair the air permeability, and obtains a sleeping comfort with less unevenness due to the unevenness of the filament shape. In addition, even if the indoor temperature and humidity fluctuate during sleep, the mattress is designed to prevent stuffiness and maintain a warm sleep.

The mattress cover is usually a hexahedron that covers the mattress score as shown in FIG. 6, and is formed by sewing a breathable fabric such as a woven fabric or a non-woven fabric in a bag shape. An opening for attaching and detaching the mattress cover, a slide fastener SF that seals the opening, and the like are provided on a portion other than the upper surface that comes into contact with a person, such as the side surface and the back surface of the mattress. In addition, some mattress covers are placed on the mattress score, and some have no back surface and the lower end of the side fabric of the cover is pushed under the mattress score to fix it (Patent Document 2 and the like). reference).

Special Table 2001-518689 Japanese Unexamined Patent Publication No. 2002-28061

By the way, if the mattress score (filament three-dimensional bond) covered with the mesh cover is covered with the mattress cover, the heat retention and the texture are improved, but the following problems may occur.

That is, if a mattress cover made of a quilt fabric or the like having a high thread density and high airtightness (heat retention) is used, there is little friction between the mattress cover and the mesh cover inside the mattress cover, and the mattress cover becomes the mesh cover as it is repeatedly turned over. It may slip on the surface, the outer mattress cover (quilt) may be biased to the left or right in the width direction, or the mattress cover may be wrinkled, making it uncomfortable to sleep.

Further, in order to suppress slippage with the mesh cover, if a fabric having an uneven surface and a high coefficient of friction, such as a tricot fabric or a fabric having a pile structure, is used, the air permeability is improved, so that the mattress score side ( Warm air escapes to the underside of the bed, reducing heat retention.

Therefore, for example, a pile knitted with a thick yarn of 80 dtex or more having a large number of fiber protrusions so that a protrusion of 1 mm or more is formed in order to increase the frictional force against the mesh-like cover knitted with a yarn having a fiber diameter of 200 dtex or less. It is also conceivable to use a fabric in which a fabric and a highly airtight fabric are sewn (laminated) as the inner fabric on the mattress score side to achieve both anti-slip and heat retention. However, the mattress cover in which the pile fabric knitted with the thick yarn having a large number of fiber protrusions is laminated has reduced flexibility, so that it is troublesome to remove the cover, and washing and drying after the removal are performed. There may be a problem that it takes time.

An object of the present invention is to provide an easy-to-handle mattress cover in which the cover is not slippery and wrinkles are less likely to occur even at bedtime, and a mattress using the mattress in which the cover is less likely to wrinkle.

The mattress cover of the present invention is a mattress cover that covers the surface of a core for a mattress and uses a quilt having a three-layer structure for at least one side of the fabric.
The quilt is
The first fabric located on the outside and
With the inner second fabric adjacent to the mattress score,
Including a heat insulating material filled between the first dough and the second dough,
In the second fabric, the inner surface on the mattress score side is a non-slip surface with a brushed surface, and the outer surface on the heat insulating material side is an airtight adjustment surface with an airtight surface. Oh it is,
In the measurement of air permeability (passing air amount) according to the Frazier method described in SS8.26.1 "Breathability" of JIS L 1096 "Fabric test method for woven fabrics and knitted fabrics".
The amount of air passing through the second dough is 0.5 to 20 ^{cm 3} / cm ² seconds.
The amount of air passing through the first dough is 50 to 200 ^{cm 3} / cm ² seconds.
The passing air amount ratio between the first dough and the second dough (passing air amount of the first dough / passing air amount of the second dough) is 2.5 to 400. ..

Further, the mattress cover of the present invention is characterized in that the airtight processing of the airtightness adjusting surface of the second fabric is a silly processing or a resin coating.

On the other hand, the mattress of the present invention includes a mattress score made of a filament three-dimensional bond in which filaments made of a molten thermoplastic resin are bonded to each other in a three-dimensional net shape, a mesh-like cover covering the surface of the mattress score, and the above. covering the mesh cover, characterized in that it comprises a mattress cover according to claim 1 or 2.

In the mattress cover of the present invention, the inner side surface (lower side surface) of the inner second fabric adjacent to the mattress score (and the mesh-like cover) is a brushed anti-slip surface, and a heat insulating material such as an inner pad. Since the outer surface (upper surface) adjacent to the mattress is a breathable adjustment surface that has been airtightly processed, slip prevention between the mattress score and the mesh-like cover and improvement of heat retention (airtightness) can be achieved. It is compatible with one piece of dough (second dough). Therefore, the mattress cover of the present invention can prevent the occurrence of wrinkles due to turning over at bedtime. In addition, the cover itself does not become thick, and it is lightweight and easy to handle.

Further, among the mattress covers of the present invention, in the measurement of air permeability (passing air amount) conforming to JIS L 1096, the passing air amount of the second fabric is 0.5 to 20 ^{cm 3} / cm ² seconds. Since the air permeability of the second fabric, which is adjacent to the heat insulating material, is adjusted appropriately, there is little air outflow in the mattress score direction (downward of the bed), and the heat insulation of the cover (heat retention). Is improved.

Further, among the mattress covers of the present invention, those in which the airtight processing of the airtightness adjusting surface of the second fabric is silly processing or resin coating are the outer surface of the upper (sleeping side) second fabric. The airtightness of the plastic can be appropriately controlled by a simple treatment.

On the other hand, since the mattress of the present invention uses the mattress cover having the above-described configuration, the mattress can be made so that wrinkles are less likely to occur on the cover even while sleeping.

It is (a) external perspective view and (b) schematic sectional view of the mattress and the mattress cover of the 1st Embodiment of this invention. It is an enlarged sectional view of the upper part of the mattress cover of 1st Embodiment. It is an external perspective view of the mattress and the mattress cover of the 2nd Embodiment of this invention. It is a schematic block diagram of the filament three-dimensional bond manufacturing apparatus. It is explanatory drawing which shows the main part structure of the filament 3D composite manufacturing apparatus in an enlarged manner. It is an external perspective view of the conventional mattress cover.

FIG. 1A is an external perspective view of the bed mattress according to the first embodiment of the present invention, and FIG. 1B is a schematic cross-sectional view illustrating the internal structure of the mattress. Further, FIG. 2 is an enlarged view of the mattress cover portion on the upper part of the mattress. The illustrated layers and fabrics are drawn with the thickness emphasized.

As shown in the external perspective view of FIG. 1A, the bed mattress 10 of the present embodiment has all six surfaces covered with the mattress cover 1 of the first embodiment, and is in the state shown in the drawing. It is used by being placed on a bed or the like. The direction of the mattress 10 when used is limited only to the top and bottom (top and bottom), but here, for convenience, the top surface (top surface), which is the sleeping surface of the user (sleeper), is 11, and the bed and floor surface. , The lower surface (bottom surface) in contact with the tatami mattress, etc. is 12, the side surface in the longitudinal direction of the mattress along the height direction of the sleeping person is 13, 14, and the side surface in the lateral direction (width direction) of the mattress orthogonal to the height direction is 15. It will be described as 16.

The mattress cover 1 is formed in a bag shape by sewing an upper surface 11 made of a thick quilt (fabric) and fabrics arranged on the lower surface 12 and each side surface 13, 14, 15, 16 to form one of the side surfaces. The portion is provided with an opening for attaching / detaching a cover (not shown) and a slide fastener (see FIG. 6) for sealing the opening.

As shown in FIG. 1B, the mattress 10 has a mesh-shaped cover (mesh cover 2) that covers the thick mattress core material (mattress score 3) as a center, and further around the mesh cover 2. It is composed of a mattress cover 1 as an exterior covering the mattress cover 1. A filament three-dimensional conjugate [3DF (3-dimensional structures-linked structure)] is used for the mattress score 3.

The mesh cover 2 covering the mattress score 3 is made of a double Russell fabric having a thickness of 3 mm in which pores having a diameter of 3 mm are regularly formed. This double Russell fabric is knitted using, for example, polyester yarn having a fiber diameter of 84 dtex, and is formed in a size capable of accommodating a mattress score 3.

The mattress cover 1 is composed of a three-layered quilt (quilt fabric) whose upper surface (top surface) 11 is composed of an outer material (1A), a lining (1C), and an inner cotton (1B). In addition to the upper surface (top surface) 11, the lower surface (bottom surface) 12 and the side surfaces 13, 14, 15, and 16 that the sleeping person does not touch so much may have the inner cotton (1B) omitted as shown in the figure. Good.

The features of the mattress cover 1 of the present embodiment are that the upper surface 11 which is most often touched by the mattress user (sleeper) has a highly breathable first fabric (outer material 1A) and the inner side adjacent to the mattress score. A quilt (quilt cloth) composed of a second cloth (lining 1C), a heat insulating material (inner cotton 1B) filled between the cloths and responsible for heat insulation between them, and the second cloth are used. The inner side surface 1e on the mattress score 3 side of the fabric (lining 1C) is a non-slip surface with a brushed surface, and the outer surface 1d on the heat insulating material (inner cotton 1B) side is airtightly processed on the surface. It is a point that it is a breathable adjustment surface that has been given. The three-layered fabric (quilt) may be applied to the lower surface (bottom surface) 12 and the side surfaces 13, 14, 15, 16 other than the upper surface (top surface) 11.

Explaining the three-layer structure quilt in detail, as shown in the enlarged cross-sectional view of FIG. 2, the quilt constituting the mattress cover 1 includes an outer material 1A located on the outside (front side) that touches the sleeping person, a mattress score 3 and the mattress score 3. It is composed of a lining 1C located inside adjacent to the mesh cover 2 and a quilt 1B filled between the fabrics.

In the present embodiment, a cut pile fabric is used for the outer material 1A. However, the fabric of the outer material 1A is not particularly limited as long as it can secure heat retention and a certain degree of breathability and texture. For example, instead of the cut pile fabric, a pile fabric or a jacquard knitted fabric should be used. You can also.

Further, as the inner cotton 1B, a resin cotton made of polyester is used. The inner cotton 1B is also not particularly limited as long as it can secure heat retention and a certain degree of breathability. For example, a heat insulating material such as wool or Tencel cotton may be used alone, and may be composited or laminated with a non-woven fabric or the like. You may use it as a non-woven fabric. In the present invention, even when the heat insulating material is formed of a plurality of layers, it is treated as one layer (intermediate layer or inner cotton layer) of the three-layer structure quilt.

In the lining 1C, which is a feature of the present embodiment, the inner side surface 1e (lower side surface in the drawing) adjacent to the mattress score 3 (and the mesh cover 2) is a brushed anti-slip surface, and the inner surface 1B is formed. The adjacent outer surface 1d (upper side surface in the drawing) is an airtightly processed airtightness adjusting surface. Specifically, for the lining 1C of the present embodiment, a tricot fabric knitted with polyester yarn having a fiber diameter of 33 dtex is used, the inner side surface 1e thereof is brushed, and the outer surface 1d thereof is airtight. It has been processed.

The fabric used for the lining 1C is not particularly limited as long as it can be brushed and airtightly processed. For example, a knitted fabric knitted with polyester yarn, nylon yarn, acrylic yarn or the like can be used.

Further, as the raising process (raising process), for example, the surface of the fabric can be raised by using a raising machine using a needle cloth, thereby increasing the frictional resistance with the mesh cover 2. be able to. Further, as the airtight processing (airtightening treatment), for example, a silly processing method can be used, whereby a certain degree of air permeability [JIS L 1096 "Fabric test method for woven fabrics and knitted fabrics" (Frazier type) described later. The heat retention can be improved while maintaining the amount of passing air according to the method) of 0.5 or more and 20 cm ³ / cm ^{2 seconds or less].}

A resin coating can also be used as the airtight processing (airtightening treatment). As an example of resin coating, the dough is impregnated with a water-based urethane resin, polyester resin, acrylic resin, etc., and then dried at 60 to 120 ° C., and the actual amount of resin after drying is 1 to 50 g / m ² . Examples thereof include a method of processing the same amount of actual grain on the surface of the fabric by using a flat screen or a rotary screen on a solvent-based urethane resin, polyester resin, or the like. By applying these resin coatings, the heat retention is similarly improved while maintaining a certain degree of air permeability (passing air amount is about 0.5 to ^{20 cm 3 / cm 2 seconds), as in the case of the silly processing.} Can be made to.

Explaining the breathability test, this breathability test is defined in JIS L 1096 "Fabric test method for woven fabrics and knitted fabrics", and uses a predetermined Frazier type breathability tester (not shown). Do.

In the test, after attaching the test piece to the testing machine _{, air is used so that the inclined barometer shows a pressure of 125 Pa (water column 1.27 cmH 2} O) (corresponding to 15 m / s in terms of wind speed) by an adjustment resistor. According to the pressure indicated by the "vertical barometer" when adjusting the suction fan of the test piece to keep the pressure difference on both the front and back sides of the test piece constant, and the type of air holes used, the "passing air amount" passing through the test piece (Cm ³ / cm ² · sec) ”. By the way, the amount of passing air required for clothing compatible with Cool Biz is 50 cm ³ / cm ² seconds or more.

In the quilt constituting the mattress cover 1 of the present embodiment, the lining 1C (the above-mentioned airtight processing on the outer surface 1d) located inside adjacent to the mattress score 3 and the mesh cover 2 usually has a passing air amount of 0. The type of fabric, knitting method (weaving method), and meshing amount (number of raw threads / inch) so that the amount of air passing through is 5 to ^{20 cm 3} / cm ^{2 seconds, preferably 1 to 10 cm 3} / cm ^{2 seconds.} Etc.), and the type, processing method, processing conditions, etc. of the airtight processing are set.

In addition, the outer material 1A located on the outside (front side) that touches the sleeping person usually has a passing air amount of 50 to 200 cm ^{3 in consideration of heat retention at bedtime, transpiration due to sweating at bedtime, and stuffiness in the futon.} / cm ² · sec, preferably so that the amount of passing air is 80~150cm ³ / cm ² · sec, the type of fabric, knitting (weave), the basis weight (number of yarns / inch, etc.) and the like Be selected. The ratio of the amount of air passing through the outer material 1A and the lining 1C (the amount of air passing through the outer material 1A / the amount of air passing through the lining 1C) is usually 2. It is desirable to set it in the range of 5 to 400 times, preferably 5 to 200 times.

When the fabric composition is such that the amount of air passing through the lining 1C is ^{less than 0.5 cm 3} / cm ² seconds, the fabric surface (inner side surface 1e) is too dense and the fabric slips on the mesh cover 2 at bedtime. There is a high possibility that it will cause wrinkles. On the other hand, if the fabric composition is such that the amount of air passing through the lining 1C ^{exceeds 20 cm 3} / cm ² seconds, wrinkles at bedtime can be suppressed, but the air permeability is too good and the underside of the mattress in winter etc. There is a high risk that the heat escape to (toward the underside of the bed) cannot be suppressed (that is, the mattress feels cold).

According to the mattress cover 1 of the first embodiment having the above configuration, the inner surface 1e of the lining 1C adjacent to the mattress score 3 and the mesh cover 2 is formed on the brushed anti-slip surface by the inner pad 1B ( Since the outer surface 1d adjacent to the heat insulating material) is the breathable adjusting surface of the airtight lining 1C, the mesh cover with a low coefficient of friction is maintained without increasing the weight of the cover. Even on 2, the slip can be suppressed. Therefore, even if the mattress cover 1 is repeatedly turned over while sleeping, the outer mattress cover 1 is not biased to the left or right in the width direction or wrinkles are generated, and the sleeping comfort is not deteriorated. Further, the mattress 10 using the cover also has the same effect.

Next, a second embodiment of the present invention will be described.
FIG. 3 is an external perspective view of the mattress and the mattress cover of the second embodiment. In FIG. 3, the mesh cover 2 covering the mattress score 3 is not shown.

The mattress cover 4 used for the mattress 5 in the second embodiment is different from the mattress cover 1 in the first embodiment in the method of fixing to the mattress score 3. That is, the mattress cover 4 does not have the lower surface (bottom surface) 12 and the side surfaces 13, 14, 15, 16 of the mattress cover 1, but the rubber bands 4f for fixing the cover are formed at the four corners of the upper surface (top surface) 11. Are arranged respectively.

The rubber bands 4f at each corner are connected by wrapping around the lower surface of the corner of the mattress score 3 (not shown), and due to the tension, the four corners of the mattress cover 4 (upper surface 11) are connected to the upper surface of the corner of the mattress score 3, respectively. It is attracted to and fixed to.

The mattress cover 4 has only the upper surface (top surface) 11 sewn into a single bag shape, and the internal configuration is the upper part of the mattress cover 1 of the first embodiment (in FIG. 2, breathability). Corresponds to the high outer material 1A, inner bag 1B, and lining 1C in which the inner side surface 1e is brushed and the outer surface 1d is airtightly processed), and the mattress has a mat-like or pad-like overall shape. It has the same effect as the cover 1.

Therefore, the mattress cover 4 in the second embodiment can also be a mattress cover having excellent heat retention and less wrinkles even at bedtime without causing an increase in weight. Further, the mattress 5 using the cover can also exert the same effect.

Next, a method for manufacturing the mattress score 3 included in the mattress covers (1, 4) will be described.

Manufacture of the mattress score having the above-described configuration is performed using a filament three-dimensional conjugate manufacturing apparatus as shown in FIGS. 4 and 5.

As shown in FIG. 4, the filament three-dimensional bond manufacturing apparatus includes a molten resin supply means (extruder 40), a molten filament forming portion (die) 20 for discharging a molten filament (reference numeral MF), and a water tank 31. A three-dimensional bond forming unit 30 including a transport path of the installed filament three-dimensional bond (described by reference numeral 3DF), and a computer that centrally controls the workmanship (finish) of the filament three-dimensional bond. Etc. (not shown) and the like.

The molten resin supply unit (extruder 40) includes a hopper 41 (material input unit), a screw 42, a screw motor 43, a cylinder 44, a material discharge unit 45, and a screw heater 46, and heat supplied from the hopper 41. The plastic resin is melted in the cylinder 44 of the extruder 40 and discharged as the molten resin from the material discharging section 45 toward the molten filament forming section (die 20).

The die 20 includes a base plate 21 on which a plurality of nozzles (discharge holes 21a) are formed and a die heater 22, and the molten resin supplied from the material discharge portion 45 of the extruder 40 to the die guide flow path 20a is formed. The molten filament MF is discharged vertically downward from the plurality of discharge holes 21a. The base plate 21 is a substantially rectangular parallelepiped metal thick plate in which a plurality of circular openings (discharge holes 21a) are formed, and is arranged below the die 20 which is the most downstream portion of the die guiding flow path 20a. ing.

By adjusting the diameter of the discharge holes 21a (nozzle diameter) and the distance between the two adjacent discharge holes 21a (nozzle pitch), the repulsive force (height ratio during compression) of the filament three-dimensional coupler can be changed. it can. That is, the smaller the nozzle diameter or the larger the nozzle pitch, the smaller the density of the filament three-dimensional coupler can be, and as a result, the repulsive force and the height ratio at the time of compression can be reduced.

Further, the three-dimensional bond forming unit 30 forms a three-dimensional (three-dimensional) shape of a water tank 31 (water surface 31a) for storing cooling water and a filament three-dimensional bond in which the molten filament MF is entwined and bonded in a three-dimensional net shape. And endless conveyors 34A and 34B for cooling while maintaining the thickness.

A receiving plate (filament guide) that promotes retention of the molten filament MF, as shown in FIG. 5, is located directly below the base plate 21 (plurality of discharge holes 21a) and above the endless conveyors 34A and 34B. , An inclined guide plate 32) is provided, and on the upper surface of the guide plate 32 (inclined plate 32A, 32B, etc.), it is discharged downward from the upper die 20 and hangs vertically downward (naturally falls) by its own weight. Of the molten filaments MF, a plurality of molten filaments MF on the outer side in the thickness direction of the three-dimensional bond 3DF are received, ride on the water (water film) supplied from the water supply conduit 33, and flow in the central direction.

Since each filament near the center that does not ride on the guide plate (32A, 32B, etc.) has a lighter specific gravity than water, it floats on the water surface 31a in the water tank 31 and temporarily stops, and is continuously discharged on the water surface 31a. The filaments are sequentially deposited in a loop. Then, due to this loop-shaped deposition, "three-dimensional entanglement", that is, irregular and random intersection occurs in the molten filament MF, and a three-dimensional bond 3DF having a large void between the filaments is formed. ..

Next, as shown in FIG. 4, the molten filament (hereinafter, the three-dimensional coupled body 3DF) in which the three-dimensional entanglement is generated is sandwiched between the endless conveyors 34A and 34B and conveyed, and the water tank 31 is conveyed from the lower end thereof. The three-dimensional combined body 3DF discharged into the water inside is completely cooled while passing through the transfer path in the water tank 31 composed of the transfer rollers 36A to 36F, and is described by the transfer rollers 36G and 36H having a driving force. It is taken out from the water tank 31.

The endless conveyor 34A includes a driving roller 35A and a driven roller 35B, and is rotationally driven by a transfer motor (not shown). Similarly, the endless conveyor 34B also includes a drive roller 35C and a driven roller 35D, and is rotationally driven by a transfer motor (not shown).

The pair of endless conveyors 34A and 34B are each composed of slat conveyors, and are arranged with a gap corresponding to the thickness of the three-dimensional combined body 3DF. The moving speed of the endless conveyors 34A and 34B (conveying speed of 3DF) is set to a speed slower than the falling speed of the molten filament because the loop of the molten filament is not formed when the moving speed is equal to or higher than the falling speed of the molten filament.

The slower the moving speed of the endless conveyors 34A and 34B, the higher the density of the molten filament, and the higher the repulsive force, the higher the density of the three-dimensional bonded body 3DF is formed. The repulsive force is determined according to the specifications of the mattress, cushion, etc. in which the three-dimensional coupling is used, but is usually set to about 5 to 20% with respect to the falling speed of the molten filament.

The endless conveyors 34A and 34B are not particularly limited as long as they are transport members having a smooth transport surface, and a conveyor using a metal mesh belt or a plastic modular chain may be used.

Examples of the thermoplastic resin that can be used as the material of the three-dimensional bonded 3DF in the embodiment of the present invention include polyolefin resins such as polyethylene and polypropylene, polyester resins, polyamide resins, polyvinyl chloride resins and polystyrene. Examples thereof include resins, thermoplastic elastomers such as styrene-based elastomers, vinyl chloride-based elastomers, olefin-based elastomers, urethane-based elastomers, polyester-based elastomers, nitrile-based elastomers, polyamide-based elastomers, and fluorine-based elastomers.

With the above configuration, the bed mattress score of each of the above-described embodiments can be efficiently manufactured. After that, the mattress score (3) is completed by covering it with a mesh-shaped cover (2) and then covering it with the mattress cover (1, 4) of the present invention.

The mattress cover of the present invention can be used not only for bed mattresses, but also for sofa beds, couch beds, or similar cushioning materials for sofas.

1 Mattress cover 1A Outer material 1B Inner cotton 1C Lining 1d Outer side surface 1e Inner side surface 2 Mesh cover 3 Mattress score 4 Mattress cover 4f Rubber band 5 Mattress 10 Mattress 11 Top surface 20 Die 21 Mouthpiece plate 21a Discharge hole 30 3D Water tank 32 Guide plate 34 Endless conveyor 40 Extruder 44 Cylinder

Claims (3)

A mattress cover that covers the surface of the mattress core and uses a three-layer quilt on at least one side of the fabric.
The quilt is
The first fabric located on the outside and
With the inner second fabric adjacent to the mattress score,
Including a heat insulating material filled between the first dough and the second dough,
In the second fabric, the inner surface on the mattress score side is a non-slip surface with a brushed surface, and the outer surface on the heat insulating material side is an airtight adjustment surface with an airtight surface. Oh it is,
In the measurement of air permeability (passing air amount) according to the Frazier method described in SS8.26.1 "Breathability" of JIS L 1096 "Fabric test method for woven fabrics and knitted fabrics".
The amount of air passing through the second dough is 0.5 to 20 ^{cm 3} / cm ² seconds.
The amount of air passing through the first dough is 50 to 200 ^{cm 3} / cm ² seconds.
The passing air amount ratio between the first dough and the second dough (passing air amount of the first dough / passing air amount of the second dough) is 2.5 to 400. Mattress cover. The mattress cover according to claim 1, wherein the airtight processing of the airtightness adjusting surface of the second fabric is a silly processing or a resin coating. A mattress score made of a filament three-dimensional bond in which filaments made of molten thermoplastic resin are bonded to each other in a three-dimensional net shape.
A mesh-like cover that covers the surface of the mattress score
A mattress comprising the mattress cover according to claim 1 or 2 , which covers the mesh-like cover.

Images