JPH09154674A - Mattress - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mattress consisting of a bag-like pad for a sheet stuffed with soft cotton and a hard support mat, which can be integrally handled and also can be cleaned in one piece using a home electric washing machine, if necessary, without such fear that the soft cotton might be less bulky or be felted. SOLUTION: This mattress is composed of a plate-like support mat 10 of hard cotton and a bag-like pad 20 covering, in freely detachable manner, at least, the upper surface of the support mat 10, and an upper coat part 21 of a low contractile surface texture 21a and an intermediate texture 21b covering the upper face of the support mat 10 of the bag-like pad 20. In addition, the stuffing cotton 25 of synthetic fiber containing 30% or more of low friction fiber with the interfiber friction coefficient of 0.20 or less and with an amount applied of 200-1200g/m<2> , is packed into the surface texture and the intermediate texture 21b. Further, the surface texture 21 and the lining 21b are bonded together with quilting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bedding that can be washed in a domestic washing machine.

[0002]

2. Description of the Related Art An ordinary mattress is a cloth bag (futon side)
It is made by filling cotton or synthetic fiber with cotton, and closing its mouth. When using, sheets are laid on top. When the sheets become dirty due to use, such as sweat, sebum, and dirt, the sheets are removed and washed. Also, if the mattress is dirty, you cannot wash the mattress as a whole,
The futon side is removed and washed, but the inner cotton is usually used without being washed, and even if it is extremely dirty, it is only necessary to re-strike or sun-dry it. It took a lot of time to open and close the side and to put in and out the inner cotton.

Recently, consumers have become more and more clean,
With the growing demand for bedding that can be washed in a household washing machine as a whole, a bedding that is made of soft cotton or non-woven fabric that has been thinly inserted has been developed. It has come to be used by stacking it on an underlay mat made of hard cotton or foamed resin. However, the above pad is
Since it is simply washable, and since the conventional cotton is used for the inner cotton, there is a problem that when the laundry is washed, the cotton becomes bulky and becomes felt, and it takes a long time to dry after washing. Since it is used by being piled up on a conventional mattress or an underlay mat, it cannot be used as one mattress, and there is a problem that the mattress shifts after stacking.

[0004]

DISCLOSURE OF THE INVENTION The present invention is a mattress consisting of a bag-shaped pad corresponding to a conventional mat and a plate-like support mat corresponding to a conventional underlay mat, wherein the bag-shaped pad described above is provided. It can be washed as a whole in a household washing machine like a conventional mat, and the padding does not become bulky and does not become felt, and the drying time is shortened. The present invention provides a mattress that is detachably attached to and can be handled integrally.

[0005]

The mattress of the present invention is
A plate-like support mat made of hard cotton or a foam of rubber or resin, and a bag-like pad removably attached to the support mat so as to cover at least the upper surface thereof, and at least the above-mentioned bag-like pad. An upper surface coating portion that covers the upper surface of the support mat is formed into a bag shape with a low-shrinkage outer material and a lower material, and a low inter-fiber static friction coefficient of 0.20 or less made of synthetic fibers is provided between the outer material and the inner material. It is characterized in that a unit weight of 200 to 1200 g / m ² containing 30% or more of friction fibers is filled and the above-mentioned outer material and the inner material are connected by quilting.

In the present invention, the plate-shaped support mat is
A hard cotton obtained by heat-bonding a needling non-woven fabric or cotton under pressure is preferable, and its constituent fibers are preferably polyester fibers. The apparent density of the support mat is 0.0
25~0.045g / cm ^3, but also the thickness 20~50mm
Are preferred. The above apparent density is 0.025g
If it is less than / cm ³ , a feeling of flooring occurs, and conversely 0.045 g /
If it exceeds ³ cm, folding when storing becomes difficult. Further, if the thickness is less than 20 mm, a feeling of flooring occurs and the heat retaining property is insufficient, and if it exceeds 50 mm, folding becomes difficult.

The plate-like support mat may be made of foam made of rubber or synthetic resin such as polyurethane or polyethylene instead of the above-mentioned hard pad. Further, it is also possible to stack the plate-shaped hard cotton and the foamed body and use them. And
These support mats may be used as they are in a naked state, or may be put in a wrapping cloth for use. In particular, in order to facilitate folding at the time of accommodation, the required length of the mattress may be divided into two equal parts or three equal parts and individually put into the wrapping cloth, and the wrapping cloth comrades may be sewn together.

The bag-like pad to be attached to the above-mentioned support mat may be any one as long as it can cover at least the upper surface of the support mat and can be detachably attached to the support mat. It is optional. Then, the upper surface coating portion that covers at least the upper surface of the support mat is formed in a bag shape with a relatively dense surface material and a relatively coarse textured material.
For the outer material and the inner material, a low-shrinkage fabric which hardly shrinks upon washing, for example, a polyester woven fabric or a polyester / cotton mixed woven fabric is used. Further, as long as it is shrink-proofed, it is possible to use 100% cotton fabric.

[0009] As the inner cotton to be put between the outer material and the middle material of the bag-like pad, a synthetic fiber material made of low friction fiber having an inter-fiber static friction coefficient of 0.20 or less made of synthetic fiber such as polyester is used. This low-friction fiber is obtained, for example, by coating a polyester resin with a silicone-based resin and heat-fixing it. If the inter-fiber static friction coefficient exceeds 0.20,
It becomes bulky and felt after use and washing. In addition,
A part of the low friction fiber can be replaced with other fiber, for example, synthetic polyester fiber, acrylic fiber, polypropylene fiber or the like synthetic fiber. However, the content of the low-friction fiber needs to be 30% or more, preferably 50% or more, and when the content of the low-friction fiber is less than 30%, the volume is reduced and the felt is formed.

The weight per unit area of the inner cotton is 200 to 1200.
It is set to g / m ² . When the weight per unit area is less than 200 g / m ² , the feeling is hard and the sleep is uncomfortable.
If it exceeds m ² , washing with a domestic washing machine becomes impossible. In addition, when the above-mentioned inner cotton is piled only on the upper surface of the support mat, the weight per unit area is preferably 200 to 1200 g / m ^{2, and} when the inner cotton is laminated on both upper and lower surfaces of the support mat, the weight is different between the upper surface and the lower surface. 100-600g /
m ² is preferred.

The mattress of the present invention is used by covering a plate-like mat with a bag-shaped pad containing cotton pad and overlaying the sheet on the bag-shaped pad. In this case, since the thin and soft padding of the bag-shaped pad is located on the plate-like mat having a relatively hard feel, the human body does not sink and a comfortable and healthy sleeping comfort is obtained. On the other hand, at the time of washing, if the bag-like pad is removed from the plate-like mat and rolled up, the weight of the inner cotton is 1200 g / m ² or less, so it is possible to put it in the tub of a domestic washing machine for washing. Become. In the drying after washing and dehydration, since the inner cotton is synthetic cotton, it is easy to dry, and if the temperature is 15 ° C or higher and the relative humidity is 70% or lower, it is dried in the sun for one day.

Further, 30% or more of the above-mentioned inner cotton has a coefficient of static friction between fibers of 0.20 or less, and since the contact portions between the fibers are slippery, the inner cotton does not become bulky and become a felt. It is easy to return to the texture and bulk. Further, since the outer material sandwiching the inner cotton and the inner cloth are connected by quilting, the above-mentioned inner cotton is not biased and the inner cotton is not torn. In addition, since the outer material and the inner material have low shrinkage, they do not shrink by washing, so that the washing of the bag-like pad does not make it difficult to adhere to the plate-like mat or deteriorate the appearance. .

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 In FIG. 1, the support mat 10 is a hard cotton made of polyester fiber and has an apparent density of 0.025 to 0.045.
It is made into a plate shape with g / cm ³ and a thickness of 20 to 50 mm. The bag-like pad 20 attached to the support mat 10 is composed of an upper surface covering portion 21 that covers the upper surface of the supporting mat 10 and a lower surface covering portion 22 that covers the lower surface thereof, and only the left side is the stitch 2
3, and a slide fastener (not shown) is attached to the openings 34 on the remaining three sides to form a bag that can be opened and closed.

The upper surface covering portion 21 is formed by superposing a surface material 21a and a center material 21b made of polyester fiber fabric, sewn into a bag shape, and joined by quilting to form the surface material 21a.
And the quilting seam 21 inside the inner space 21b.
It is divided into square or diamond-shaped small sections with a side length of 40 cm or less by c, and each small section is filled with padding 25. The lower surface covering portion 22 is also sewn in a bag shape by stacking a lining 22a and a middle material 22b, which are also made of polyester fiber fabric, and divides the inner space into square or diamond-shaped small compartments with quilting stitches 22c. It is made by filling the inner cotton 25. However, the above-mentioned inner cotton 25 is crimped to a polyester fiber and is a futon made of a low friction fiber having an interfiber static friction coefficient of 0.20 or less obtained by processing with a silicone resin, and a normal polyester fiber. The futon cotton is mixed at a ratio of 75/25, and the basis weight is set to 100 to 600 g / m ² both in the upper and lower parts.

Embodiment 2 As shown in FIG. 2, a mattress is made in substantially the same manner as in Embodiment 1 except that the lower surface covering portion 22 is composed only of the lining 22a. That is, the outer fabric 21a and the inner fabric 21b made of polyester fiber woven fabric are overlapped, and the inner space thereof is divided into square or diamond-shaped sub-compartments with a side length of 40 cm or less by quilting seams 21c, and each sub-compartment is filled with the middle pad 25. To form an upper surface covering portion 21, and a lower surface covering portion 2 composed only of the upper surface covering portion 21 and a lining 22a of a polyester fiber fabric.
2 and 3 are sewn together with the seam 23 on the left side to form the remaining three sides as an opening 24, and the opening 24 is formed so as to be openable and closable by attaching a slide fastener (not shown). The support mat 10 made of hard cotton is sandwiched between the lower surface covering portion 22 and the lower surface covering portion 22. However, the basis weight of the above-mentioned inner cotton 25 is 2
It is set to 00 to 1200 g / m ² .

Embodiment 3 As shown in FIG. 3, a dress material 31a having a size extending from the upper surface of a hard mat support mat 10 to the lower surface through four edges.
2 and the base 21b are sewn together in a bag shape and joined by quilting, and the basis weight is 2 in a square or diamond-shaped small section with a side length of 40 cm or less formed by the quilting seam 31c.
It is filled with 0 to 1200 g / m ² of inner cotton 35, and the rubber string 32 is attached in an elongated shape along the four circumferences, and the bag-shaped pad 30 is made by the contraction thereof, and the opening 34 is formed inside the ring made of the rubber string 32. Form. In this case, the rubber cord 32 around the opening 34 is extended to widen the opening 34, and the support mat 10 is inserted therein.

[0017]

EXAMPLE In the bag-shaped pad 20 of the first embodiment, the side cloth such as the outer material 21a, the lining 22a, the inner materials 21b and 22b, and the inner cotton 25 are variously changed to obtain the materials of Examples 1 to 3 and Comparative Examples 1 and 2. A bag-shaped pad 20 was prototyped and a washing test was performed to compare the performances. Table 1 shows the results. In Table 1, P is normal polyester, C is cotton, Cv is shrink-proofed cotton, and “low” has a coefficient of static friction between fibers of 0.1.
5 means a low friction fiber (a polyester fiber having a fineness of 2.5 denier coated with a silicone resin and thermally fixed).

In the washing test, the bag-shaped pad 20 is spread so that the upper surface covering portion 21 and the lower surface covering portion 22 overlap each other and the upper surface covering portion 21 faces upward (see FIG. 4).
Fold in three along two chain lines M and N parallel to the length direction (the upper part of the chain line M is overlapped on the part between the chain lines M and N, and the lower part of the chain line N is stacked thereon). Next, roll it in a roll shape with the right end as the core, and put this on a blanket net (diameter 39
cm, height 30 cm), using a one-tank fully automatic washing machine (Matsushita Electric Industrial Co., Ltd., product name "NA-F60KI", capacity 6 kg), blanket washing course (12 minutes of washing, 6 rinsing)
Min × 2 times, dehydrated 4 minutes), washed and dehydrated, and dried in the sun.

The drying time is the time required for drying by sun drying (temperature 15 ° C., relative humidity 70%), and 7 hours or less was accepted. The bulkiness is the rate of reduction (%) of the thickness after drying with respect to the thickness before drying, which was measured under a load of 6 g / cm ² by folding the bag-like pad in three, and 10 or less was passed. In addition, the shrinkage of the futon is 3% or less, which is regarded as acceptable. Then, it was judged comprehensively whether or not the laundry could be washed, all were acceptable, and if any one was unacceptable, it was determined to be unacceptable.

Table 1 Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Side material Material P P / C Cv CP Composition ratio 100 80/20 20 100 100 100 Middle cotton material Low / P Low / P Low / PC / P Low / C composition ratio 70/30 50/50 50/50 50/50 70/30 Unit weight (g / m ² ) 500 500 500 500 500 Shrinkage (%) 1.0 2.0 2.5 6.0 1.0 Drying time (hours ) 5.5 6 6.5 12 8 Bulkiness (%) 2 4 4 35 18 Washability Yes Yes Yes No No No

A bag-like pad (Example 4) having the same structure as that of Example 2 except that the material of the side cloth in Example 2 was changed to 100% polyester was produced as a prototype and the cleaning degree was tested. That is, in FIG. 4, a contaminated cloth (JIS standard, manufactured by the Society of Washing Science, Lion wet artificial contaminated cloth) is respectively applied to the central portion A on one end side in the lengthwise direction of the bag-shaped pad 20 and the left and right ends B and C on the other end side. Stick and fold in the same way as above, wrap in a roll and put in a blanket net on the market, and use the above fully automatic washing machine, blanket washing course (However, Kao Co., Ltd., trade name "Attack" for detergent After washing with standard concentration), dehydration, and drying in the sun, the brightness of each part of A, B, and C was measured with a photometer.
B part is 0.29, C part is 0.37, the washing degree (lightness) of the shirt washed without folding is 0.50, and the washing degree (lightness) of the blanket washed by rolling is about 0.16. Therefore, it was judged that there was no problem in the cleaning performance.

The shrinkage after washing was measured for the bag-shaped pad of Example 4 above, and the results shown in Table 2 below were obtained. Table 2 Original size (cm) Length after washing (cm) Shrinkage rate (%) Width 98.0 97.5 0.5 Length 207.0 205.0 1.0

Further, the bag-like pad of Example 4 (total weight of 2484 g, basis weight of the inner cotton is 500 g / m ² , total weight of the inner cotton is 2000 g, total weight of the front material, the lining and the middle material is 4).
After being washed and dehydrated (the washing conditions were the same as above), 84 g) was dried in the sun under the conditions of a temperature of 15 ° C. and a relative humidity of 70%, and the transition of the moisture content was measured. The results are shown in Table 3 below.

Table 3 Before washing Immediately after washing 3 hours after 5 hours after 7 hours Weight (g) 2484 3370 2706 2509 2460 Moisture content (%) 0.6 37 10 2 0

[0025]

The mattress described in claim 1 is a plate-like support mat made of hard cotton or foam of rubber or resin, and is detachably attached to the support mat so as to cover at least the upper surface thereof. Formed of a bag-shaped pad, the upper surface coating portion that covers at least the upper surface of the support mat of the bag-shaped pad is formed in a bag shape with the low-shrinkage outer material and the middle material,
Between the outer material and the inner material, a unit weight of 200 to 1200 g / m ² containing 30% or more of low friction fibers made of synthetic fibers having a coefficient of static friction between fibers of not more than 200 g / m ² is filled, and Since it is tied to the middle ground with quilting, you can get a comfortable and healthy sleep, and you can handle the support mat and bag-like pad as a unit,
The bag-shaped pad does not shift from the support mat, and it can be folded as it is, and if necessary, remove the bag-shaped pad and wash it in a household washing machine as a whole, and dry it in the sun in a short time. It is possible to satisfy the customer's desire for cleanliness, and the bag-like pad does not shrink, and the inner pad does not become felt or bulky, and is excellent in dimensional stability.

According to a second aspect of the present invention, the mattress of the first aspect is the mattress of the first aspect, in which the bag-shaped pad covers the upper surface of the support pad and the upper surface of the support pad and the middle cloth. Is formed into a bag-like shape that can be opened and closed by a bag-shaped lower surface covering portion made up of a lining for covering the lower surface of the above and a middle material, and the inter-fiber static friction coefficient of synthetic fibers is 0 in each of the bag-like upper surface covering portion and lower surface covering portion. A basis weight including low friction fibers of 20 or less and 30% or more of 100 to 600 g /
The m ² inner padding is filled, and the outer material and the inner material and the lining and the inner material are connected by quilting, respectively, so that the same effect as that of the mattress of claim 1 is obtained, and the upper surface covering portion and the lower surface covering are provided. It can be used with any of the parts facing up.

According to a third aspect of the present invention, the mattress of the first aspect is the mattress of the first aspect, in which the bag-shaped pad covers the upper surface of the supporting pad and the bag-shaped upper surface covering portion and the middle cloth. Since it is formed into a bag-like shape that can be opened and closed by a lower surface covering portion that covers the lower surface of the sheet, the same effect as that of the mattress according to claim 1 is achieved, and the upper surface covering portion that comes into contact with the human body at bedtime is also provided. The amount of inner cotton is larger than that of the mattress according to claim 2, and the texture is further softened.

The mattress according to claim 4 is the mattress according to any one of claims 1 to 3,
Since the low-friction fiber is a polyester fiber whose surface is processed with a silicone resin, it has less fatigue due to use and has excellent durability.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a first embodiment.

FIG. 2 is a cross-sectional view of the second embodiment.

FIG. 3 is a cross-sectional view of the third embodiment.

FIG. 4 is a plan view of the bag-shaped pad.

[Explanation of symbols]

10: support mat (hard cotton), 20, 30: bag-like pad, 21: upper surface covering portion, 22: lower surface covering portion, 21a, 2
2a, 31a: outer material, 21b, 22b, 31b: lining material,
21c, 22c, 31c: quilted seams, 23:
Seams, 24, 34: Openings, 25, 35: Middle cotton

Claims (4)

[Claims] 1. A bag-like support mat made of hard cotton or foam of rubber or resin, and a bag-like pad which is detachably attached to the support mat so as to cover at least the upper surface thereof. The upper surface of the support pad, which covers at least the upper surface of the support mat, is formed into a bag shape with a low-shrinkage outer material and a middle material, and an interfiber static friction coefficient of synthetic fibers between the outer material and the middle material is 0. Low friction fiber of 20 or less 3
A mattress containing 0% or more of the basis weight of 200 to 1200 g / m ² filled with the inner cotton, and the above-mentioned outer material and the inner material are joined by quilting. 2. The mattress according to claim 1, wherein the bag-shaped pad has a bag-shaped upper surface covering portion formed of a front material and a middle material covering the upper surface of the supporting pad, and a lining material covering the lower surface of the supporting pad. A bag-shaped lower surface covering portion made of a base material is formed into a bag shape that can be opened and closed, and a low friction fiber having an inter-fiber static friction coefficient of 0.20 or less made of synthetic fiber is formed in each of the bag-shaped upper surface covering portion and lower surface covering portion. A mattress containing 30% or more of a basis weight of 100 to 600 g / m ² filled with cotton, and a quilt that connects the outer material and the inner material and the inner material and the inner material by quilting. 3. The mattress according to claim 1, wherein the bag-shaped pad covers an upper surface of the support pad and a bag-shaped upper surface covering portion formed of a middle material and a lower surface of the support pad. A mattress that is formed in the shape of a bag that can be opened and closed by the underside covering made of lining. 4. The mattress according to any one of claims 1 to 3, wherein the low-friction fiber is a polyester fiber whose surface is processed with a silicone resin.