JP2011110266A - Highly air-permeable internal packing material for pillow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an internal packing material for pillow which can discharge heat and moisture of the whole of a pillow by instantly discharging heat and moisture enclosed in the pillow top section, and gradually discharging heat and moisture which have been absorbed in polyurethane foams. <P>SOLUTION: The highly air-permeable internal packing material P for a pillow is constituted of an internal packing material body A and a set of two pillow height adjusting mats B and B' which are arranged under the internal packing material body A, which is formed into a two-layer integrated structure of at least an upper layer section 10 and a lower layer section 20. The upper layer section 10 is constituted of a general purpose flexible polyurethane foam. Uneven sections 11 and 12 are formed on the top surface side of the upper layer section 10. In the recessed section 11, a hole 11a which goes through the upper layer section is formed. The lower layer section 20 is constituted of a non-film flexible polyurethane foam, and the pillow height adjusting mats B and B' are constituted of the general purpose flexible polyurethane foam and form a flat plate shape having through holes B1 and B1'. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a pillow inner packaging material for bedding, and more particularly to a highly breathable pillow inner packaging material.

  Recently developed is a filmless flexible polyurethane foam. This non-film flexible polyurethane foam is a polyester- or polyether-based normal open-cell soft polyurethane foam (hereinafter, open-cell soft polyurethane foam that has not been made non-film is referred to as "general-purpose flexible polyurethane foam"). For example, it is produced by making it film-free by an explosion method (hereinafter, the film-less open-cell soft polyurethane foam is referred to as “film-free soft polyurethane foam”). This filmless flexible polyurethane foam is structurally characterized in that the film between the internal ribs is efficiently removed, and the void volume is much larger than that of general-purpose flexible polyurethane foam. Therefore, the non-film flexible polyurethane foam has high air permeability and water permeability because it has no membrane in the cell and has a skeleton structure. Moreover, this non-film flexible polyurethane foam has the characteristics that the properties such as hardness and density of the general-purpose flexible polyurethane foam are not impaired by the non-film formation, but rather the tensile strength is further improved.

  In addition, soft polyurethane foam with irregularities on its surface by processing such as profile processing is used, and those with slits that penetrate the flexible polyurethane foam are used in order to further improve air permeability Has been.

  Patent Document 1 is composed of a film-free flexible polyurethane foam, and has a three-layer structure of an upper sheet whose surface is profiled, an intermediate lower sheet, and a height adjustment mat disposed below the upper sheet. A pillow having a laminate as an inner packaging material is shown.

  Patent Document 2 shows a pillow body that includes a pillow body and an adjustment material built into the pillow body, the surface of the pillow body is profiled, and a pillow is provided with a slit penetrating the pillow body and the adjustment material. Has been. However, Patent Document 2 does not describe using a film-free flexible polyurethane foam.

JP 2000-139653 A JP 2004-159930 A

  However, since polyurethane foam is breathable and quick-drying but inherently has high heat retention and moisture retention, a pillow with polyurethane foam as the inner material is the upper part of the pillow that comes into contact with the head of the body during use. However, because it is the hottest and contains moisture, it becomes stuffy, so it becomes hard to sleep. In the pillow inner packaging material described in Patent Document 1, the non-film flexible polyurethane foam has high air permeability and good water permeability. This is the diffusion of heat and moisture due to the movement of air through the minute voids in the foam. Since it is due to release, heat dissipation and moisture release are slow. Therefore, a film-free flexible polyurethane foam alone is not sufficient to immediately release the heat and moisture trapped on the top of the pillow.

  Moreover, the thing of patent document 2 discharge | releases the heat | fever and moisture which were trapped in the pillow upper part with the slit which penetrates a pillow main body and an adjustment material to the exterior of a pillow through a slit, for example, the internal space | gap of a polyurethane foam The heat and moisture absorbed and retained by the water cannot be easily released, and it is difficult to release the temperature and moisture of the entire pillow.

  Therefore, the present inventor conducted extensive research and immediately released the heat and moisture trapped in the upper part of the pillow, and the heat and moisture absorbed in the polyurethane foam were gradually released, so that the heat and moisture of the entire pillow were released. Has devised a pillow packaging material that can be released.

  The highly air-permeable pillow inner material according to the present invention has a two-layer integrated structure of at least an upper layer portion and a lower layer portion, the upper layer portion is composed of a general-purpose flexible polyurethane foam, and an uneven portion is formed on the upper surface side thereof. In the concave portion, a hole penetrating the upper layer portion is formed, and the lower layer portion is made of a film-free flexible polyurethane foam.

  Further, in addition to the above-described configuration, a set of two flat pillow height adjustment mats that are made of general-purpose flexible polyurethane foam and have through holes may be incorporated below the lower layer portion.

  As described above, the highly air-permeable pillow packaging material according to the present invention has a two-layer integrated structure of at least an upper layer portion and a lower layer portion, the upper layer portion is composed of a general-purpose flexible polyurethane foam, and an uneven portion is formed on the upper surface side. In addition, since the hole penetrating the upper layer portion is formed in the concave portion, the heat and moisture trapped in the upper layer portion are immediately released to the lower layer portion through the through hole. And since the lower layer part is comprised from the film-free flexible polyurethane foam, the heat | fever and the humidity which were discharge | released from the upper layer part to the lower layer part are thermally radiated and dehumidified gently from the whole pillow by diffuse discharge. Therefore, when the pillow is constructed using the highly air-permeable pillow packaging material, there is no feeling of stuffiness and comfortable sleep can be obtained.

  In addition, in the case where a set of two flat pillow height adjustment mats which are made of general-purpose flexible polyurethane foam and have through holes is incorporated below the lower layer portion, first, the through holes are formed. Therefore, heat and moisture released to the lower layer part are released to the mat, and are released to the lower side of the inner packaging material through the through hole of the mat. Further, since two mats are used as a set, the height can be adjusted in three steps: a state where no mat is used, a state where one mat is used, and a state where two mats are used. Therefore, when the pillow is constructed using the highly breathable pillow packaging material, there is no feeling of stuffiness and comfortable sleep is obtained, and the pillow height is adjusted according to the user's preferred height. This makes it more comfortable to sleep.

It is a perspective view of the highly air permeable pillow inner packaging material which concerns on the Example of this invention. It is a disassembled perspective view of the highly air-permeable pillow inner packaging material which concerns on the Example of this invention. It is sectional drawing of the highly air permeable pillow inner packaging material which concerns on the Example of this invention. It is a partial expansion perspective view of the upper layer part of the highly air permeable pillow inner packaging material which concerns on the Example of this invention. The pillow was completed using the highly air-permeable pillow packaging material according to the embodiment of the present invention.

  Hereinafter, the highly air-permeable pillow packaging material of the pillow according to the present invention will be described in detail with reference to the accompanying drawings.

  1 to 4, A represents a highly air-permeable pillow inner body (hereinafter simply referred to as “inner body”), and B and B ′ are pillow height adjustment mats (hereinafter simply referred to as “mats”). .), And the inner packaging material body A is combined with mats B and B ′ to form an inner packaging material P. As shown in FIG. 5, the inner packaging material P is covered with a side ground Q to form a pillow M. The

  As shown in FIGS. 3 and 4, the inner packaging material main body A has a two-layer integrated structure of an upper layer portion 10 composed of a general-purpose flexible polyurethane foam and a lower layer portion 20 composed of a non-film flexible polyurethane foam. is there. The upper layer portion 10 has a concave portion 11 and a convex portion 12 formed by profile processing on the upper surface side thereof, and a hole penetrating the upper layer portion 10, a slit 11 a in this embodiment, is formed in the concave portion 11. The lower surface of the upper layer portion 10 has a shape that matches the shape of the upper surface of the lower layer portion 20, and the inner packaging material body A has an integrated structure in which the lower surface of the upper layer portion 10 and the upper surface of the lower layer portion 20 are bonded together.

  In the inner packaging material body A configured as described above, the upper layer portion 10 is made of a general-purpose flexible polyurethane foam, the concave and convex portions 11 and 12 are formed on the upper surface side, and the slit 11 a that penetrates the upper layer portion 10 is formed in the concave portion 11. Therefore, heat and moisture trapped in the uneven space portion of the upper layer portion 10 are immediately released to the lower layer portion 20 through the slit 11a. And in the lower layer part 20 comprised from the non-film flexible polyurethane foam, the heat and moisture released from the upper layer part 10 to the lower layer part 20 are gradually released from the entire pillow by the diffusion and release action of the non-film flexible polyurethane foam. It will be dehumidified. Therefore, when the inner packaging material body A is used, there is no stuffiness.

  The lower surface of the lower layer portion 20 is configured to be flat, and a pair of mats B and B ′ are stacked below the lower surface portion 20. The mats B and B 'have the same form, both are made of general-purpose flexible polyurethane foam, and have a flat plate shape with flat upper and lower surfaces. The mats B and B 'are each formed with a through hole penetrating the mat B and B', in this embodiment, slits B1 and B1 '.

  Since the mats B and B ′ having the above structure are formed with slits B1 and B1 ′ penetrating therethrough, a part of the heat and moisture released to the lower layer portion 20 is released to the mats B and B ′. Then, it is discharged downward from the inner packaging material through the slits B1 and B1 ′ of the mats B and B ′. Therefore, if the pillow is configured using the inner packaging material P composed of the mats B and B 'having the above-described configuration and the inner packaging material main body A, the unintentional stuffiness caused by the inner packaging material main body A is not hindered. In addition, since the mats B and B 'are a set of two, the height can be adjusted in three steps: a state where no mat is used, a state where one mat is used, and a state where two mats are used. That is, the pillow M shown in FIG. 5 uses one of the mats B and B ′, but when the height of the pillow M is reduced, the mat B is removed. On the contrary, when the height of the pillow M is increased, the mat B ′ may be added.

  As described above, when the inner material P according to the present embodiment is used to configure the pillow M, not only is there a feeling of stuffiness and a comfortable sleep, but also according to the user's preferred height. Since the height of the pillow can be adjusted, the sleeping comfort is further improved.

A ... Highly air-permeable pillow inner body 10 .. Upper layer portion of inner body 11.. Concave portion of upper layer portion 11 a. Slit penetrating upper layer portion in concave portion 12.. Convex portion of upper layer portion 20. Lower layer of the main body B ・ ・ ・ Pillow height adjustment mat B '・ ・ Pillow height adjustment mat B1 ・ ・ Slit through the pillow height adjustment mat B1' ・ Slit through the pillow height adjustment mat P ... Inner packaging material Q ... side land M ... pillow

Claims (2)

A two-layer integrated structure of at least an upper layer portion and a lower layer portion,
The upper layer part is composed of a general-purpose flexible polyurethane foam, an uneven part is formed on the upper surface side, and a hole penetrating the upper layer part is formed in the concave part,
A highly breathable pillow wrapping material characterized in that the lower layer portion is made of a non-film flexible polyurethane foam. 2. A high air permeability according to claim 1, characterized in that a set of two flat pillow height adjustment mats, each of which is made of a general-purpose flexible polyurethane foam and has a through hole, is incorporated under the lower layer portion. Pillow packaging.

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