Laying material

Abstract

To provide a mat material having high body pressure dispersion performance.SOLUTION: The laying material 10 includes a laying material body 20 containing a foamed resin, and a plurality of through-holes 30 formed in the laying material body 20.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to litter. [Background technology]

[0002] Patent Document 1 discloses a mattress, which is an example of a mattress pad. This mattress is made of foamed resin and has the ability to distribute body pressure. This can prevent the user from developing bedsores, for example. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-166925 Summary of the Invention [Problem to be solved by the invention]

[0004] The above mattresses still have room for improvement in terms of body pressure distribution performance.

[0005] The present disclosure aims to provide a floor covering having higher body pressure distribution performance. [Means for solving the problem]

[0006] A flooring material according to a first aspect of the present disclosure comprises a flooring material body containing a foamed resin, and a plurality of through holes formed in the flooring material body.

[0007] The flooring material according to a second aspect of the present disclosure is the flooring material according to the first aspect, wherein the flooring material body includes a first main body portion, a second main body portion connected to the first main body portion, and a space formed between the first main body portion and the second main body portion.

[0008] The flooring material according to the third aspect of the present disclosure is a flooring material according to the first or second aspect, in which, when viewed in a plan view, the ratio of the sum of the areas of the through holes to the area of ​​the flooring material body is in the range of 3% or more and 40% or less.

[0009] The floor covering according to the fourth aspect of the present disclosure is a floor covering according to any one of the first to third aspects, wherein when an object weighing 1.2 kg is placed on the floor covering body, the contact pressure acting on the floor covering body is less than 43 mmHg. [Effects of the Invention]

[0010] The bedding material according to the present disclosure has higher body pressure distribution performance. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 2 is a plan view of the flooring material of the embodiment. [Figure 2] FIG. 2 is a front view of the litter of FIG. 1. [Figure 3] FIG. 2 is a perspective view of the bedding of FIG. 1 in a folded state. [Figure 4] FIG. 10 is a perspective view showing a flooring material according to a first modified example. [Figure 5] 1 is a table showing the specifications of the bedding materials of the examples and comparative examples, and test results. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, a flooring material according to one embodiment of the present disclosure will be described with reference to the drawings. Note that the same or corresponding parts in the drawings are designated by the same reference numerals, and their description will not be repeated. In the numerical ranges described in stages in this embodiment, the upper or lower limit value described in a certain numerical range may be replaced with the upper or lower limit value of another numerical range described in stages. Separately described upper and lower limits, upper and lower limits, or lower and lower limits may be combined to form respective numerical ranges.

[0013] [1. Composition of bedding] FIG. 1 is a plan view of the litter 10 of this embodiment. FIG. 2 is a front view of the litter 10. The litter 10 is placed on the floor, for example, and any part of the user's body is placed on it. The litter 10 of this embodiment is used for the user's head, for example. For this reason, the litter 10 is used as a pillow. The user's body may be placed directly on the litter 10. The litter 10 may be covered with an indirect member such as a nonwoven sheet, for example, and used so that the user's body and the litter 10 come into contact with each other via the indirect member.

[0014] The floor covering 10 comprises a floor covering body 20 and a plurality of through-holes 30 formed in the floor covering body 20. To enhance body pressure distribution, the floor covering body 20 is made of a foamed resin. Examples of foamed resin include polyethylene, polyethylene produced from ethylene obtained from plant-derived raw materials (plant-derived polyethylene), polystyrene, polypropylene, polypropylene produced from propylene obtained from plant-derived raw materials (plant-derived polypropylene), and polyurethane. In other examples, the floor covering body 20 may be made of a low-density polyethylene, medium-density polyethylene, high-density polyethylene, linear low-density polyethylene, EVA (Ethylene-vinyl acetate), EEA (Ethylene-Ethylacrylate Copolymer), EMMA (Ethylene-methyl methacrylate copolymer), cyclic olefin copolymer, 4-methyl-1-pentene resin, metal ion cross-linked resin of ethylene-methyl methacrylate copolymer, or ethylene-methacrylic acid copolymer.

[0015] The shape of the litter body 20 in plan view can be selected as desired. The shape of the litter body 20 in plan view may be rectangular, square, triangular, pentagonal or higher polygonal, circular, or elliptical. In the example shown in Figure 1 etc., the shape of the litter body 20 in plan view is rectangular.

[0016] The flooring material body 20 includes a first body portion 21, a second body portion 22, and a space 23. The flooring material body 20 is tubular in shape, with the first body portion 21 and the second body portion 22 connected so that openings 20A and 20B are formed at both longitudinal ends. The space 23 is formed between the first body portion 21 and the second body portion 22.

[0017] A plurality of through holes 30 are formed in the first body portion 21 and the second body portion 22. The plurality of through holes 30 penetrate through each of the first body portion 21 and the second body portion 22. The shape of the through holes 30 in a plan view can be selected arbitrarily. The shape of the through holes 30 in a plan view may be a rectangle, a square, a triangle, a polygon with pentagons or more sides, a circle, or an ellipse. In the example shown in FIG. 1 etc., the shape of the through holes 30 in a plan view is a rhombus. The number of through holes 30 formed in the first body portion 21 and the number of through holes 30 formed in the second body portion 22 may be the same or different.

[0018] In a plan view, the ratio of the sum of the areas SB of the through holes 30 to the area SA of the flooring material body 20 (hereinafter referred to as the "opening ratio RA") can be selected arbitrarily. In the example shown in Figure 1, the area of ​​the flooring material body 20 is the product of the long side 20X and the short side 20Y. The area SB of each of the multiple through holes 30 is measured using a digital microscope (manufactured by Keyence Corporation).

[0019] From the viewpoint of improving body pressure distribution performance and breathability, the opening rate RA is preferably 3% or more. From the viewpoint of improving the durability of the flooring material main body 20, the opening rate RA is preferably 40% or less. A preferred range for the opening rate RA is 3% or more and 40% or less. When the flooring material main body 20 includes a first main body portion 21 and a second main body portion 22, the area SA is the sum of the area SA of the first main body portion 21 and the area SA of the second main body portion 22 in a plan view. The area SB is the sum of the areas SB of the through holes 30 formed in the first main body portion 21 and the second main body portion 22.

[0020] The contact pressure PA acting on the litter body 20 when an object is placed on it can be selected arbitrarily. Some studies have reported that a contact pressure of 50 mmHg or more is likely to cause bedsores. For this reason, it is preferable that the contact pressure PA when an object weighing 1.2 kg is placed on it be less than 43 mmHg. The contact pressure PA is measured using a Palm Q (manufactured by Cape Co., Ltd.).

[0021] The litter 10 of this embodiment may be used in the state shown in Fig. 1, with the user's body resting on the first body portion 21 or the second body portion 22. In another example, the litter 10 may be used in a state in which the first body portion 21 and the second body portion 22 are folded, as shown in Fig. 4. In the example shown in Fig. 4, the litter 10 is used with the user's body resting on the second body portion 22.

[0022] The flooring material 10 configured as described above can be manufactured by any means, such as adhesive bonding, heat fusion bonding using a circular die method with an extruder, or a flat die method with an extruder.

[0023] [2. Effect of bedding] The flooring material 10 provides the following effects.

[0024] <2-1> The flooring material 10 has a flooring body 20 made of foamed resin and a plurality of through-holes 30 formed in the flooring body 20, and therefore has high body pressure dispersion performance. This can, for example, prevent the user from developing bedsores.

[0025] <2-2> The litter body 20 is cylindrical with a space 23, which allows it to dry quickly when not in use, for example.

[0026] <2-3> The floor covering 10 has an opening ratio RA within the range of 3% to 40%, and therefore has high body pressure distribution performance, high breathability, and high durability.

[0027] <2-4> The contact pressure PA of the bedding 10 is less than 43 mmHg, and therefore the occurrence of bedsores in the user can be suppressed.

[0028] [3. Modifications] The above-described embodiments are merely examples of possible forms of the floor covering according to the present disclosure and are not intended to limit the forms. Each aspect disclosed herein can be combined with any other feature disclosed herein. The floor covering according to the present disclosure can take forms different from those illustrated in the above-described embodiments. Examples of such forms include replacing, modifying, or omitting part of the configuration of the above-described embodiments, or adding new configurations to the above-described embodiments. The present disclosure is not limited by the above-described embodiments, but is limited only by the claims. Some examples of variations of the above-described embodiments are shown below. Note that the above-described embodiments and the following variations can be combined with each other as long as they are not technically inconsistent.

[0029] <3-1. First modified example> The configuration of the litter body 20 can be modified. Figure 4 is a perspective view of litter 10X of a first modified example. As shown in Figure 4, litter 10X may omit the first main body portion 21 or the second main body portion 22. Litter 10X of the first modified example may also be folded and used in the same way as litter 10, or multiple litter pieces 10X may be stacked and used.

[0030] <3-2. Second modified example> In the above embodiment, the floor covering body 20 has two body parts, namely, the first body part 21 and the second body part 22, but the floor covering body 20 may have three or more body parts.

[0031] 4. Working Example The inventors of the present application manufactured bedding materials of Examples and Comparative Examples and conducted tests to confirm their body pressure distribution performance. Figure 5 is a diagram showing the specifications of the bedding materials of Examples 1 to 8 and Comparative Examples 1 and 2, as well as the results of contact pressure measurements. For ease of explanation, the following description may use the same reference numerals to designate the same components as in the embodiments.

[0032] The litter materials of Examples 1 to 8 are litter materials related to the embodiment and the first modified example. The litter materials of Examples 1 to 6 are made of polyethylene. The polyethylene is a low-density polyethylene manufactured by Sumitomo Chemical Co., Ltd., under the product name "Sumisen G806." The litter material of Example 7 is a plant-derived polyethylene. The plant-derived polyethylene is a low-density polyethylene manufactured by Braskem, under the product name "SBC818." The litter material of Example 8 is a linear polyethylene. The linear polyethylene is a linear low-density polyethylene manufactured by Ube Maruzen Polyethylene, under the product name "Yumerit 1520F." The litter materials of Examples 1 to 3 and 5 to 8 include a first main body portion 21 and a second main body portion 22. As shown in FIG. 3, the first main body portion 21 and the second main body portion 22 of the litter materials of Examples 1 and 5 to 8 are folded and used in a four-ply configuration. The litter materials of Examples 2 and 3 are used in the configuration shown in FIG. 1, i.e., two-ply configuration. The flooring material of Example 4 is a flooring material relating to the first modified example, and the flooring material body 20 has only the first body portion 21 or the second body portion 22.

[0033] The material constituting the bedding material of Comparative Example 1 is polyurethane foam. The polyurethane foam is a soft polyurethane foam (product name "Achilles Airon") manufactured by Achilles Corporation. The bedding material of Comparative Example 1 is in sheet form and does not have through holes.

[0034] The material constituting the litter of Comparative Example 2 was a silicone gel. The silicone gel was Hydrosite AD Gentle manufactured by Smith & Nephew. The litter of Comparative Example 1 was in sheet form and had no through holes.

[0035] The inventors placed the bedding materials of Examples 1 to 8 and Comparative Examples 1 and 2 on the floor and placed an object on the bedding material. The object included a hollow spherical plastic container, water, and a weight contained in the spherical container. The spherical container had an opening with a diameter of 2 cm and a lid for sealing the opening. The diameter of the spherical container was 13 cm and the thickness was approximately 2 mm. The object was a spherical container containing water and a weight, with the total weight of the spherical container, water, and weight being 1.2 kg. Next, the sensor pad of a measuring device (Palm Q, manufactured by Cape Co., Ltd.) was sandwiched between the bedding material and the object, and the contact pressure was measured.

[0036] The contact pressure was less than 43 mmHg for the bedding materials of Examples 1 to 8, confirming their high body pressure dispersion performance. This is thought to be because the bedding materials of Examples 1 to 8 have a bedding body 20 made of foamed resin and have through-holes 30 formed therein, which allows for good body pressure dispersion.

[0037] On the other hand, the contact pressure detected in the bedding of Comparative Example 1 was close to 50 mmHg, which is considered to be the value at which bedsores are likely to occur. Although the bedding of Comparative Example 1 is made of foamed resin, it does not have through holes, and therefore it was confirmed that its body pressure distribution performance is poor compared to the bedding of Examples 1 to 8.

[0038] On the other hand, the contact pressure detected in the bedding of Comparative Example 2 was close to 50 mmHg, which is considered to be a value that is likely to cause bedsores. Because the bedding of Comparative Example 2 is not made of foamed resin and does not have through holes, it was confirmed that its body pressure distribution performance is poorer than that of the bedding of Examples 1 to 8. [Explanation of symbols]

[0039] 10: Bedding material 20: Flooring material 21: First main body 22: Second main body 23: Space 30:Through hole

Claims

1. A flooring material body comprising a foamed resin; A plurality of through holes formed in the flooring material body. Bedding material.

2. The bedding body is a first main body portion; a second body portion connected to the first body portion; a space formed between the first body portion and the second body portion. The litter material according to claim 1.

3. In a plan view, the ratio of the sum of the areas of the through holes to the area of ​​the flooring material body is within the range of 3% to 40%. The bedding material according to claim 1 or 2.

4. When an object weighing 1.2 kg is placed on the litter body, the contact pressure acting on the litter body is less than 43 mmHg. The bedding material according to claim 1 or 2.

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