JP4104762B2 - Floor materials using waste tile carpet - Google Patents

Description

[0001]
[Industrial field]
The present application is an invention relating to a flooring using a waste tile carpet made by efficiently recycling a used waste tile carpet without crushing.
[0002]
[Prior art]
Conventionally, used tile carpets are hardly recycled as building waste materials and are disposed of. Therefore, recycling of waste tile carpet resources was attempted. The method is to pulverize the collected waste tile carpet, then separate the fiber and resin part by specific gravity sorting, etc., mix the resin part with paste, extrude, shape by calendering, and regenerate as flooring Was done. In addition, a method disclosed in Japanese Patent Laid-Open No. 8-312117 has been proposed.
[0003]
[Problems of the Invention]
All of the conventional methods are labor intensive and costly. Moreover, even if the fiber carpet was contained in the tile carpet (hereinafter referred to as TCP), when pulverized, the dimensional stability originally possessed by these substrates was lost.
[0004]
[Means for solving the problems]
The present invention is a waste tile having a surface pile layer in which the surface pile portion tufted to the primary base fabric is cut away by 60% or more without being completely cut by shearing or clippers, and a resin backing layer on the back side of the surface pile layer The gist of the present invention is a flooring material using a waste tile carpet, wherein a carpet is used and a surface decorative layer is formed on the back surface of the resin backing layer .
[0005]
In the used tile carpet in the present invention, a pile of 1 to 5 mm is tufted on a primary base fabric, and a resin backing layer is laminated on the back surface of the obtained raw machine. The material of the resin backing layer can be appropriately selected from polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer (EVA), atactic poly α-olefin (APAO) and the like. The thickness of the resin backing layer is usually 1 to 5 mm, but may be other than this.
[0006]
After removing the collected waste tile carpet by washing it with water, the surface pile is removed. The removal method is a method such as shearing or clipper mowing. Reap more than 60% of the pile without fully cutting .
[0007]
FIG. 1 is a cross-sectional view of the present recycled flooring. A surface decorative layer is laminated on the back surface of the composite base material of the primary base fabric and the resin backing layer obtained as a result. The surface decorative layer may be a decorative resin layer provided with printing or the like, or may be a separate decorative fiber layer such as tufted pile fabric or flocky. The decorative layer is preferably 0.5 to 5 mm, but may have a thickness other than this. In the present application, the back side is the floor base material side of the resin backing layer , and the front side is the pile cutting surface side.
[0008]
In the case of forming the surface resin decorative layer, the sheet itself may be a toned sheet having a marble pattern, wood grain pattern, inlaid pattern, or the like, or may be a combination of a printing layer and a transparent layer. In “FIG. 1”, 1 is a primary base fabric, 2 is a resin backing layer of a waste tile carpet , 3 is a pile cutting portion, the surface side is down, and an adhesive layer 5 is provided on the back side of the surface. The resin decorative layer 6 is laminated. On the other hand, a balance layer 7 having a thickness of preferably 0.1 to 1 mm may be provided on the back surface of the backing layer as necessary for the structure. In this way, it is possible to reinforce points that are easily warped. More preferably, a fiber reinforcing material F such as a glass net, a glass nonwoven fabric, or a polyester mesh may be interposed in the backing layer or between the primary base fabric and the backing layer to maintain dimensional stability. Thus, the flooring 8 using the waste tile carpet of the present invention is obtained.
[0009]
(The invention's effect)
1. The waste tile carpet could be easily reused as a flooring material by simply processing the waste tile carpet without going through pulverization and sorting.
2. Since there was no pulverization step, the fiber reinforcement in the waste tile carpet contributed to the dimensional stability of the recycled flooring.
3. When the waste tile carpet was TCP, especially TCP with a reinforcing layer, and a surface fiber decorative layer was further laminated, it was very good as TCP regeneration.
[Brief description of the drawings]
FIG. 1 is a sectional view of a flooring material of the present invention.
[Explanation of symbols]
1 primary base fabric 2 resin backing layer 3 removed pile trace 6 surface resin decorative layer 8 flooring using waste tile carpet

Claims (1)

Using a waste tile carpet having a surface pile layer whose surface pile portion tufted into the primary base fabric is cut by shearing or 60% or more without being completely cut by a clipper and a resin backing layer on the back side of the surface pile layer, Floor material using waste tile carpet, characterized in that a surface decorative layer is formed on the back side of the resin backing layer .

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