JPH0723835A - Core material for bedding and the like - Google Patents

Abstract

PURPOSE:To eliminate deformation and permanent set in fatigue and to improve air permeability by housing a sandwich laminate which is arranged with felt layers on both top and bottom sides of a core part consisting of many small pieces of foamed synthetic resins and is disposed with a front surface layer of soft blank materials, such as cotton, wool and feather, on the outer side thereof into a bag and subjecting the laminate to quilting. CONSTITUTION:The sandwich laminate is formed by putting the small pieces 1 of the foamed synthetic resins, such as polyolefin resins and polyurethane resins, into a bag 2 to form the core part, disposing the felt layers consisting of molded surfaces on both top and bottom sides thereof and further disposing the front surface layer 5 consisting of, for example, the cotton, on the outer side thereof. This laminate is housed into the bag 6 and is quilted to form the bedding. The small pieces may be formed by using so-called industrial waste, such as molding scrap, cut scrap used cushion materials and various kinds of foamed moldings, and by pulverizing or by finely segmenting waste. The sizes of the small pieces are usually preferably about 5 to 30mm in diameter or one side in the case of, for example, spherical shapes or cubes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a core material suitable for bedding, chairs, sofas, etc. More specifically, it has excellent cushioning properties even after many years of use, and has a dent or a waist which is locally depressed. The present invention relates to a core material which is not deformed such that both ends are warped upward and has good air permeability.

[0002]

2. Description of the Related Art In recent years, as awareness of health has increased, it has been pointed out that traditionally used cotton has a drawback that it adversely affects the spine because it is too soft. Various so-called healthy beddings, which are used alone or in combination with polyurethane foam or cotton, have been proposed.

[0003]

Since these have appropriate hardness and appropriate cushioning properties, they overcome the disadvantage of cotton being too soft, but they deform the waist and other parts subject to load during use. It also has a drawback that it causes settling. In addition, it has poor breathability, and it also contains hygiene problems by depositing sweat and waste products. In view of such circumstances, the present invention provides a core material for a bedding or the like, which is free from deformation and fatigue even after being used for many years and is highly breathable.

[0004]

As a result of intensive research aimed at solving the above problems, the present inventors have found that a small piece of foamed synthetic resin is used as a core, and felt layers are arranged on the upper and lower sides of the core, and further outside thereof. By arranging the surface layer of soft material on
Surprisingly, it was found that even if it was used for many years, it did not cause deformation or settling, and it was highly breathable and good in hygiene.
The present invention has been completed. That is, according to the present invention, a felt-like layer is provided on both upper and lower sides of a core portion made of a large number of small pieces of a foamed synthetic resin such as a polyolefin resin and a polyurethane resin, and cotton, wool, feathers, etc. are further provided outside the felt-like layer. The core material for a bedding or the like is obtained by accommodating a sandwich-shaped laminate having a surface layer made of the above soft material in a bag and performing quilting.

In the present invention, a small piece of foamed synthetic resin such as polyolefin resin such as polyethylene or polypropylene or polyurethane resin is used for the core portion. The size of the small piece is not particularly limited, but in the case of, for example, a spherical shape or a cube, it is usually preferable that the diameter or one side is about 5 mm to 30 mm. However, the shape is not limited to a spherical shape or a cubic shape, and may be an arbitrary shape such as an elliptical shape, a triangular shape, or a polygonal shape, or a cylindrical shape.

The small pieces may be produced by foam molding, but so-called industrial waste such as molding scraps, cutting scraps, used cushioning materials and various foam moldings may be crushed or shredded and used. .

When a small piece of foamed polyethylene is used, for example, an anion is generated by rubbing the small piece every time the person rolls over, and an anion generates a health promoting action such as lightening of shoulder stiffness, and a feather or wool. Deodorizing and soft resuscitative action (Japanese Patent Publication No. 3-48838 and 3-10751)
It is extremely suitable because it exhibits The small piece may be directly sandwiched between the felt-like layers to form a core, or may be put in a bag to form a core.

In the present invention, in addition to the so-called felt, the felt-like layer is obtained by heating and melting a cotton laminate in which cotton having a low melting point is arranged in the surface layer to emboss the surface layer made of the low melting point cotton into an arbitrary shape. Molded cotton can be preferably used. A product obtained by embossing the surface in a corrugated shape or an uneven shape is more preferable because it is more breathable and exhibits a soft acupressure action. The thickness of the felt-like layer is not particularly limited, but is usually 10 mm to
About 50 mm is suitable.

In the present invention, the surface layer made of a soft material means cotton which has been conventionally used as a material for bedding and the like,
It is made of materials that give a soft touch, such as wool and feathers, and a comfortable feeling to sleep and feel. Polyurethane foam and the like can also be used.
The thickness of the surface layer is also not particularly limited, and may be appropriately determined according to the preference of the user with hard or soft eyes, but is usually 10 mm.
-50 mm is preferred.

The core material of the present invention is a sandwich-like laminated body having the core portion in the center, the felt-like layers on the upper and lower sides thereof, and the surface layers on the outer sides thereof.
It is stored in a bag such as an outer bag and quilted. It should be noted that the core portion, the felt-like layer, and the surface layer may be arranged in plural layers.

[0011]

EXAMPLES The present invention will be described in more detail below with reference to examples. The waste of the molded body made of foamed polyethylene is crushed, and the mixed small piece 1 having a major axis of about 5 mm to 20 mm is put into the bag 2 to form the core portion 3 having a thickness of about 30 mm, and the molding of about 20 mm thickness on both upper and lower sides thereof. A felt-like layer 4 made of cotton is arranged, and a surface layer 5 made of cotton having a thickness of about 20 mm is further arranged on the outside thereof to form a sandwich-like laminated body, which is housed in a bag 6 and then kilked (not shown). No.) was applied to the bedding. The bedclothes obtained were observed to have no settled or deformed after 3 years of use, but there was no settled or deformed, good breathability, cool in summer and warm in winter, and sweat and waste products were effectively discharged. The hygiene was also good. In addition, the small piece of the core part provided an appropriate acupressure action, and the small piece generated anion due to friction every time the patient turned over, and an anion-promoting effect on health (lightening of stiff shoulder, etc.) was obtained and good sleep was obtained. Furthermore,
Since the core part is made of small pieces, the workability of quilting was also good.

[0012]

EFFECTS OF THE INVENTION The reason why the core material of the present invention does not cause deformation such as local dents or warps or sagging even after many years of use is that the core material of the present invention uses a small piece made of a foamed synthetic resin in the core portion. Therefore, it is considered to be excellent in fluidity and restoration property, and therefore, it is considered that a specific place is prevented from being dented, warped, or settled.

As described above, according to the present invention, since the small pieces used for the core part have fluidity and resilience, local deformation and settling are prevented, and semi-permanent use is possible. As a result, for example, air is moved every time you hit the roll, so breathability is promoted, and waste products and sweat are volatilized, so it is always kept in a dry state and is very hygienic.
In addition, the small pieces generate frictional anions to generate anions, and the anions provide a health-promoting effect such as relief from stiff shoulders.The small pieces crush and disintegrate industrial waste such as used cushioning materials and various molded products. Since it can be used as it is, it has many advantages such as helping to protect the environment, and its usefulness is extremely large.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 1 small piece 2 bags 3 core 4 felt-like layer 5 surface layer 6 bags

Claims (1)

[Claims] 1. Felt-like layers are provided on both upper and lower sides of a core portion composed of a large number of small pieces of foamed synthetic resin such as polyolefin resin and polyurethane resin, and cotton, wool, feathers, etc. are provided outside the felt-like layers. A core material for a bedding or the like, which is obtained by accommodating a sandwich-shaped laminate having a surface layer made of the above soft material in a bag and performing quilting.