JP7503827B2 - Protection materials - Google Patents

Description

The present invention relates to a curing material that is placed over a cured material to cure it.

Protective materials are attached to protective materials such as handrails and window frames of buildings, and scaffolding pillars at construction sites. The protective materials protect the protective materials. One example of a protective material is the protective sheet described in Patent Document 1.

JP 2001-207648 A

Protective sheets such as those in Patent Document 1 are left attached to window frames for long periods of time to protect them. As a result, the protective sheet in Patent Document 1 may be exposed to moisture that condenses on the window. Furthermore, protective materials used to protect handrails, scaffolding pillars, and other outdoor objects are also exposed to rainwater. If moisture or rainwater remains on the surface of the protective sheet or protective material, bacteria will grow there. For this reason, it is preferable that bacterial growth be suppressed in the protective material.

Therefore, the present invention aims to provide a protective material that can suppress the growth of bacteria.

The curing material of the present invention comprises a base material that is placed over the cured material to cure the cured material, and the base material is made of a foamed resin material that contains metal ions.

According to the present invention, the antibacterial action of metal ions can suppress the growth of bacteria in the culture medium.

In the above invention, it is preferable that the foamed resin material is foamed polyethylene, and the metal ions are silver ions.

The above configuration is particularly useful for curing materials.

In the above invention, it is preferable that the invention further includes an attachment member for attaching to the curing material, the base material is formed in a strip shape having a thin portion, and the attachment member is provided along the outer edge of the base material and disposed on the thin portion.

According to the above configuration, the elastic restoring force of the thin-walled portion of the base material can be reduced by the thin-walled portion. In other words, the force with which the protective sheet tries to return to its shape when the protective sheet is folded at the thin-walled portion can be suppressed. This makes it possible to prevent the affixed member from being peeled off from the protective material due to the protective sheet returning to its shape.

In the above invention, it is preferable that the thin portions are formed along the outer edges of both sides of the base material in the width direction, and the attachment member is provided on each of the thin portions.

According to the above configuration, thin-walled portions are formed in the wide portions on both sides of the base material in the width direction, so the base material can be folded at various positions for use. Therefore, the curing material can be used for curing materials of various widths.

In the above invention, it is preferable that the base material extends in a predetermined direction and has cutouts formed at predetermined intervals in the predetermined direction.

Following the above configuration, it can be easily cut to the desired length.

The present invention makes it possible to suppress bacterial growth.

FIG. 1 is a perspective view showing a protective sheet according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view showing a cross section of the curing sheet of FIG. 1. FIG. 2 is a schematic diagram showing a state in which a window frame is being protected by the protective sheet of FIG. 1 . 1 is a schematic diagram showing a state in which a window frame is being protected by the protective sheet of the second invention. FIG. FIG. 2 is a schematic diagram showing a protective material according to another embodiment of the present invention.

The curing sheets 1 and 1A according to the first and second embodiments of the present invention will be described below with reference to the drawings mentioned above. Note that the concept of direction used in the following description is used for convenience in the description and does not limit the orientation of the configuration of the invention to that direction. Furthermore, the curing sheets 1 and 1A described below are merely one embodiment of the present invention. Therefore, the present invention is not limited to the embodiment, and additions, deletions, and modifications are possible within the scope of the spirit of the invention.

First Embodiment
A curing material, for example, a curing sheet 1 as shown in FIG. 1 is applied to curing materials such as handrails and window frames of buildings, and scaffolding pillars at construction sites. The curing sheet 1 protects the curing material and prevents it from being damaged by construction materials, tools, furniture, etc. that may come into contact with it. The curing sheet 1 having such a function is formed, for example, in a strip shape and is applied to cover the curing material. More specifically, the curing sheet 1 has a base material 11 and a pair of adhesive tapes 12, 12. In this embodiment, the curing sheet 1 is wound into a roll to form a roll 2.

The substrate 11 is formed in a band shape, and the width of the substrate 11 is, for example, 30 mm to 250 mm. Note that the width of the substrate 11 is just an example, and may be smaller or larger than the width described above. The substrate 11 is made of a foamed resin material containing metal ions. In this embodiment, the substrate 11 is made of foamed polyethylene containing silver ions. That is, the substrate 11 is formed in a band shape by extrusion foaming of foamed polyethylene containing silver ions. The substrate 11 has thin portions 11a on both sides in the width direction, as shown in FIG. 2.

The thin portion 11a extends in the longitudinal direction along the outer edge of the base material 11. More specifically, the thin portion 11a is formed with a width w1 from the outer edge. The width w1 is 40% or less of the width W of the base material 11, and in this embodiment, it is 30%. The thin portion 11a is also formed thinner than the central portion 11b of the base material 11. For example, the thickness h1 of the central portion 11b is, for example, 1 mm or more and 2 mm or less. In this embodiment, the thickness h1 of the central portion 11b is preferably 1.3 mm or more and 1.5 mm or less. On the other hand, the thickness h2 of the thin portion 11a is 40% or more and 70% or less of the thickness h1 of the central portion 11b. In this embodiment, the thickness h2 of the thin portion 11a is 60% of the thickness h1 of the central portion 11b. The thin portion 11a is formed by performing secondary processing such as compression processing and heat processing. This reduces the elastic restoring force of the thin portion 11a.

The pair of adhesive tapes 12, 12 are also formed in a strip shape. The adhesive tapes 12 are provided on both sides in the width direction of one surface (hereinafter referred to as "one surface") of the substrate 11 in the thickness direction. In this embodiment, the adhesive tapes 12 are provided on each thin portion 11a. More specifically, the width w2 of the pair of adhesive tapes 12, 12 is smaller than the width w1 of the thin portion 11a. The adhesive tape 12 is arranged on the substrate 11 so that its entirety is located on each thin portion 11a. More specifically, the adhesive tape 12 is arranged on the thin portion 11a so that it is separated from the outer edge of the substrate 11 by a predetermined distance L in the width direction and parallel to the outer edge. The distance L is arranged to satisfy L<w1-w2. As a result, the adhesive tape 12 is arranged on the substrate 11 so that its entirety is located on each thin portion 11a. The adhesive tape 12 has adhesiveness on both sides. One side of the adhesive tape 12 is attached to the thin portion 11a, and the other side is attached to the protective material to be covered. In this way, the protective sheet 1 is attached to the protective material, and the protective material can be cured.

The protective sheet 1 configured in this manner can protect a window frame 21, for example, as shown in FIG. 3. The window frame 21 is arranged to be fitted into an opening 22a formed in a wall 22. In this embodiment, the window frame 21 is formed in a rectangular shape. A window 23 is fitted into the window frame 21. To explain in more detail, the window frame 21 is made up of multiple plate materials 21a. In this embodiment, the window frame 21 is made up of four plate materials 21a. The four plate materials 21a are arranged on the four sides of the rectangle, with their respective main surfaces 21b facing each other. As a result, the window frame 21 is fitted into the opening 22a and is arranged to surround the entire periphery of the window 23 fitted therein. The inside of the window frame 21 is protected by the protective sheet 1 to prevent damage to the main surface 21b during construction work, moving work, etc.

The curing sheet 1 is placed so that one side faces and is aligned with the main surface 21b of the plate material 21a. The curing sheet 1 has a width W larger than the width w3 of the main surface 21b of the plate material 21a. Therefore, the curing sheet 1 can be placed on the plate material 21a so as to cover the entire main surface 21b in the width direction, so that the entire main surface 21b can be cured by the curing sheet 1. In addition, since the width W of the curing sheet 1 is larger than the width w3 of the main surface 21b, both sides of the curing sheet 1 in the width direction protrude from the main surface 21b in the width direction. Then, both sides of the curing sheet 1 in the width direction are folded at each corner of the plate material 21a. As a result, both sides of the curing sheet 1 in the width direction are arranged to be aligned with each side surface 21c of the plate material 21a. Then, the protective sheet 1 is attached to the plate material 21a of the window frame 21 by attaching the adhesive tapes 12, 12 on both sides of the width of the protective sheet 1 to each side surface 21c.

As described above, the curing sheet 1 is wound into a roll to form the roll 2. Therefore, by unwinding the roll 2 and running it around the inside of the window frame 21, all of the main surfaces 21b of the four plate materials 21a can be cured with the curing sheet 1. The curing sheet 1 does not necessarily have to be wound into a roll, and may be formed in a strip shape. In this case, the curing sheet 1 is, for example, attached individually to the main surface 21b of each plate material 21a.

In the protective sheet 1 constructed in this manner, the base material 11 is made of foamed polyethylene, which is a foamed resin material, containing silver ions, which are metal ions. Therefore, the antibacterial effect of the silver ions can suppress the growth of bacteria in protective materials such as window frames 21. Furthermore, by containing silver ions in the foamed polyethylene, it is possible to improve the elasticity compared to foamed polyethylene alone. This makes it possible to suppress the breakage of the protective sheet 1.

In addition, in the curing sheet 1 of this embodiment, the width w2 of the central portion 11b is smaller than the width w3 of the main surface 21b of the plate material 21a. As a result, each thin portion 11a of the curing sheet 1 is hung on both corners of the plate material 21a. Therefore, the curing sheet 1 can be folded at the thin portion 11a. Since the elastic restoring force of the thin portion 11a is smaller than that of the central portion 11b, the force of the curing sheet 1 trying to return to its shape when the curing sheet 1 is folded at the thin portion 11a can be suppressed. Therefore, the adhesive tape 12 can be suppressed from being peeled off from the window frame 21 by the curing sheet 1 returning to its shape. In addition, in the curing sheet 1, the thin portion 11a is formed in the wide portion on both sides of the base material 11 in the width direction, so that the base material 11 can be folded at various positions for use. Therefore, the curing sheet 1 can be adapted to plate materials 21a of various widths.

Second Embodiment
The curing sheet 1A of the second embodiment has a similar configuration to the curing sheet 1 of the first embodiment. Therefore, the configuration of the curing sheet 1A of the second embodiment will be mainly described with respect to the differences from the curing sheet 1 of the first embodiment, and the same configuration will be denoted by the same reference numerals and description thereof will be omitted.

As shown in FIG. 4, the curing sheet 1A of the second embodiment has cutouts at a predetermined interval P, which in this embodiment are perforations 13. The perforations 13 extend in a predetermined direction in the curing sheet 1A. Each cut in the perforations 13 penetrates the base material 11 and the adhesive tape 12. This allows the curing sheet 1A to be easily cut to a predetermined length without using tools such as scissors. In addition, the widthwise outer edge portion 1a (see also FIG. 1) of the curing sheet 1 can be cut along the perforations 13 on both sides of the widthwise portion of the curing sheet 1A at the corner portion 21d where the plate members 21a are joined in the window frame 21. This allows the corner portion 21d of the window frame 21 to be easily cured by the curing sheet 1A.

In addition, the curing sheet 1A of the second embodiment has the same effects as the curing sheet 1 of the first embodiment.

<Other embodiments>
Although a window frame 21 is given as an example of a curing material to be cured by the curing sheet 1, 1A of this embodiment, the curing material may be a floor, a handrail of a building, or a scaffolding pillar at a construction site. When the curing material is a floor, the curing material may be formed in a wide sheet shape. When the curing material is a handrail, it may be a curing material 1B as shown in FIG. 5. That is, the curing material 1B is also made of foamed polyethylene containing silver ions. The curing material 1B is formed long in a predetermined direction. The cross section perpendicular to the longitudinal direction of the curing material 1B is, for example, shaped like a Reuleaux triangle. The curing material 1B has an opening 1b at one apex of the triangle. The opening 1b extends from one end to the other end of the curing material 1B in a predetermined direction. The handrail 25 or the like can be cured by inserting the handrail 25 or the like through the opening 1b.

In addition, in the protective sheet 1, 1A of this embodiment, the base material 11 has thin portions 11a on both sides in the width direction, but they do not necessarily have to be formed. In addition, the protective sheet 1, 1A uses an adhesive tape 12 as an attachment member, but the attachment member may be a hook-and-loop fastener or a coated adhesive. In other words, the attachment member may be anything that can detachably attach the base material 11 to the protective material such as the window frame 21. In addition, the foamed resin material is not limited to foamed polyethylene, but may be foamed polyolefin resin. In addition, the metal ions contained in the foamed resin material are not limited to silver ions, but may be other metal ions such as copper ions. Furthermore, the thin portions 11a do not necessarily have to be formed on the entire outer edge portion in the width direction of the base material 11. For example, the thin portions 11a may be formed along the outer edge at the portions where the base material 11 is folded when attached to the protective material.

1, 1A Curing sheet (curing material)
1B protective material 1a width direction outer edge portion 11 base material 11a thin portion 12 adhesive tape (attaching member)
13 Perforation (cut-out section)
21 Window frame (biological treatment)
23 Handrails (curing materials)

Claims (4)

A substrate for covering the curing material to cure the curing material;
An attachment member for attaching to the curing material;
the substrate is made of a foamed resin material containing metal ions and is formed in a band shape having a thin portion;
The adhesive member has adhesive properties on both sides, is provided along the outer edge of the base material, and is disposed on the thin portion . the foamed resin material is foamed polyethylene,
The curing material according to claim 1 , wherein the metal ions are silver ions. The thin-walled portions are formed along outer edges on both sides in the width direction of the base material,
The curing material according to claim 1 or 2 , wherein the attachment member is provided on each of the thin portions. The curing material according to claim 1 , wherein the base material extends in a predetermined direction and has cutouts formed at predetermined intervals in the predetermined direction.

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