JP2015040370A - Finishing material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a floor cover having high surface hardness, not scratched easily, excellent in impact absorptivity, and not causing injury even if overturning.SOLUTION: A finishing material includes: a composite material in which a melamine resin-impregnated surface layer is integrated with a base material such as a hard fiberboard by hot pressing; and a buffer material. An olefin foam having an Asker C hardness of 10-30 is used as the buffer material. In a construction method therefor, the finishing material can be easily constructed as the composite material is placed on the buffer material without using an adhesive agent, and replacement thereof is also easy. Moreover, the thickness of the buffer material and the Asker-C hardness can be suitably selected, and a G-value is 100 or less, preferably 80 or less.

Description

  The present invention relates to a finishing material such as a flooring material.

Conventionally, there is a flooring provided with a buffer layer to prevent injury at the time of falling.
JP 2011-190672 A JP 2000-265652 A

However, floor materials using vinyl chloride sheets, decorative veneers, olefin sheets, etc. as surface materials have the problem that their surface hardness is soft and they are easily scratched or worn out when the casters are moved. It was.
In addition, the surface material that gives cushioning to the vinyl chloride sheet has a problem in that it has a large running resistance such as a wheelchair due to partial dents and a moving load is applied.
On the other hand, when a hard surface material is used, there is a problem that sufficient cushioning properties cannot be obtained.

  The present invention is a finishing material comprising a composite material in which a melamine resin-impregnated paper is disposed on a surface layer and is heat-pressure integrated with a base material such as a hard fiber board, and a buffer material.

  The finishing material of the present invention can prevent injury at the time of falling, has a good feeling of walking, is not easily scratched, and has a shock absorbing material, so it has excellent shock absorption and is injured even if it falls. Alleviate that. In addition, the construction method can be easily constructed because the composite material is placed on the cushioning material without using an adhesive, and replacement is also easy. Further, the thickness of the buffer material and the Asuka C hardness can be selected as appropriate, and the G value is 100 or less, preferably the G value is 80 or less. A G value of 100 or less is also applied to the floor of a gymnasium. Hereinafter, it demonstrates in detail based on drawing.

  FIG. 1 is a structural sectional view of a finishing material of the present invention. The finishing material is composed of melamine resin-impregnated wear-resistant pattern paper, hard fiber board, melamine resin-impregnated balance paper, and cushioning material in order from the top.

  Melamine resin impregnated wear-resistant pattern paper is applied to decorative paper for decorative board, impregnated with a resin solution composed mainly of a condensate of amino compounds such as melamine, urea, acetoguanamine, and benzoguanamine and formaldehyde, and dried. it can.

  As an example of the substrate, a wood fiber board having a specific gravity of 0.6 to 1.0 can be used. For example, a medium fiber board (MDF), a hard fiber board (HDF) or the like is preferably used. it can. Here, the wood fiber board is preferable because it has no directionality, and unlike a single board for plywood, there is no back crack and excellent smoothness.

  As the melamine resin-impregnated balance paper, a balance paper for decorative board impregnated with the same resin solution as described above and dried can be applied.

Laminated melamine resin impregnated pattern paper, wood fiber board, and melamine resin impregnated balance paper are hot pressed under conditions of temperature 140-190 ° C., time 20 seconds to 5 minutes, pressure 4-50 kgf / cm ² , and composite material can get.

  The cushioning material that is placed on the outer side of the composite melamine resin impregnated balance paper without using an adhesive is a lightweight and elastic material such as foam made of synthetic resin or elastomer, cork sheet soft fiber board, especially moisture-proof An olefin-based foam having a thickness of 5 to 15 mm and an Asuka C hardness of 10 to 30 is excellent. If the thickness is less than the lower limit, the buffering effect tends to be poor.

  The floor material has a maximum sinking of 2 mm or less at a load of 60 kg, so that the sinking during walking is small and the walking feeling is good, preferably 1.2 mm or less. If the upper limit is exceeded, the running resistance of the wheelchair increases and the feeling of walking worsens.

Composite material 80g / m ² patterned paper impregnated with melamine resin as the main component, melamine resin-impregnated patterned paper, MDF with a specific gravity of 0.8 and thickness 8mm, and 80g / m ² balanced paper with melamine A melamine resin-impregnated balance paper impregnated with a resin liquid containing a resin as a main component was laminated and hot-press molded under conditions of a temperature of 180 ° C., a time of 1 minute, and a pressure of 20 kgf / cm ² to obtain a composite material.
Floor material A polyethylene foam having a thickness of 5 mm and an Aska C hardness of 10 as a cushioning material was placed under the composite melamine resin-impregnated balance paper without using an adhesive to obtain a floor material.

  In Example 1, it implemented similarly except having used the polyethylene foam of thickness 8mm and Asuka C hardness 20.

  In Example 1, it implemented similarly except having used the polyethylene foam of thickness 10mm and Asuka C hardness 10.

  In Example 1, it implemented similarly except having used the polyethylene foam of thickness 8mm and Asuka C hardness 30.

  In Example 1, it implemented similarly except having used the 15-mm-thick polyethylene foam of Asuka C hardness.

Comparative Example 1
In Example 1, it implemented similarly except having used the polyethylene foam of thickness 3mm and Asuka C hardness 20 instead of the polyethylene foam of thickness 5mm.

Comparative Example 2
In Example 1, it implemented similarly except having used the polyethylene foam of thickness 8mm and Asuka C hardness 45 instead of the polyethylene foam of thickness 5mm.

Comparative Example 3
In Example 4, a polyethylene foam having a thickness of 5 mm and an Asuka C hardness of 45 was used instead of a polyethylene foam having a thickness of 8 mm, and a wear-resistant vinyl chloride sheet having a thickness of 2.8 mm was used as the surface layer of the composite material. Implemented.

The evaluation results are shown in Table 1.

The evaluation method was as follows.
Aska C hardness: Measured according to Asker (polymer instrument) C type, SRIS (Japan Rubber Association Standard) 0101.
Impact resistance value G: measured according to JIS A6519.
Maximum sinking: When the shock absorber terminal shown in the figure below is used, the cushioning material (6) and the composite material (5) are placed on a smooth base without using an adhesive, and a load (60 kg) is applied. The amount of subsidence was measured as a length.

The composition sectional view of the finishing material of the present invention. The perspective view which shows a test method.

1 Melamine resin impregnated wear-resistant pattern paper 2 MDF
3 Balance paper impregnated with melamine resin 5 Composite material 6 Buffer material 8 Finishing material

Claims (3)

A finishing material comprising a composite material in which a melamine resin-impregnated paper is arranged on a surface layer and is heat-pressure integrated with a base material such as a hard fiber board, and a buffer material. The finishing material according to claim 1, wherein the cushioning material has an Asuka C hardness of 10 to 30. The finishing material according to claim 1, wherein the maximum sinking under a load of 60 kg is 2 mm or less.

Images