JP3962266B2 - Recycled floor covering - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recycled floor covering material that reuses, for example, a waste material of an automobile floor covering material.
[0002]
[Prior art]
As shown in FIG. 7, this kind of floor covering material includes a polyvinyl chloride (PVC) sheet (2) having a glass fiber sheet (3) inserted therein, and a carpet adhered to the surface of the PVC sheet (2). (4) As shown in FIG. 8, such a floor covering material (1) is coated with a PVC sol (2A) by a first coater knife (6A) on a releasable endless belt (5), and a glass fiber sheet ( 3) Overlap, apply PVC sol (2B) with the second coater comma knife (6B), press the carpet (4) with the roll (7,7), and then in the heater (8). The PVC sol (2A, 2B) is gelled by introduction and heating, and then cooled.
[0003]
Conventionally, the waste material of the floor covering material (1) is pulverized, the carpet pulverized material and the glass fiber sheet pulverized material are separated from the pulverized material, and only the PVC sheet pulverized material is recovered. In the manufacturing process of the floor covering (1), it is sprayed on the PVC sol (2A) or PVC sol (2B) coating layer as an extender.
[0004]
[Problems to be solved by the invention]
The above-mentioned floor covering material (1) The waste material recycling method takes time and effort to grind the waste material, and it is difficult to remove foreign matters such as sand in the floor covering material (1) waste material. There is a problem that the pulverized glass fiber sheet is scattered and a bad odor is generated, which deteriorates the working environment. Also, since the amount used as a bulking agent is not large, it is difficult to consume all of the waste material. .
[0005]
[Means for Solving the Problems]
As a means for solving the above-mentioned conventional problems, the present invention removes only the carpet (4) portion of the waste material of the floor covering material (1) in which the carpet (4) is adhered to the surface of the thermoplastic resin sheet (2). After recovering the thermoplastic resin sheet (2) , the thermoplastic resin sheet (4) is arranged vertically and horizontally, and a thermoplastic resin sol (12A) or melt (12B) is applied to the upper surface or both upper and lower surfaces , A recycled floor covering (11) is provided on which a new carpet (14) is crimped .
Further, a reinforcing fiber sheet (13) may be interposed on one side or both sides of the waste material from which only the carpet (4) portion is removed.
[0006]
[Action]
In this kind of floor covering (1), the waste material is almost only dirty on the carpet (4). Therefore, if only the carpet (4) is removed, the thermoplastic resin sheet (2) can be used as it is.
This recycling method requires less labor than pulverizing the thermoplastic resin sheet (2) and using it as an extender, and the pulverized material is not scattered and the working environment is not deteriorated. A large amount of waste material can be consumed.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described with reference to an embodiment shown in FIGS. 1 to 5. As shown in FIG. 1, the floor covering material (1) is removed from the carpet (4) whose surface is soiled by a grinding roller (19). Is done. In some cases, the back surface of the floor covering material (1) may be dirty, and in this case, the back surface of the floor covering material (1) may be ground with a grinding roller (19) to remove the dirty portion. The grinding scrap generated at this time can be used as an extender. The thermoplastic resin sheet (2) of the floor covering (1) is, for example, a mixture of PVC: plasticizer: calcium carbonate = 1: 1: 2 weight ratio, and the reinforcing fiber sheet (3) inserted in the middle is For example, non-woven fabrics and knitted fabrics of high-rigidity fibers such as glass fibers, hemp fibers, bamboo fibers, and palm fibers.
[0008]
As shown in FIG. 2, the thermoplastic resin sol (12A) is applied on the releasable endless belt (15) by the first coater knife (16A), and the thermoplastic resin sheet (collected by the above grinding treatment) is collected thereon. 2) are arranged vertically and horizontally (2 columns) as shown in FIG.
On the sheet (2), a thermoplastic resin sol (12B) is further applied by a second coater knife (16B), and a new carpet (14) is pressure-bonded by a roll (17), and the laminate is heated. The thermoplastic resin sol (12A, 12B) is gelled by being introduced into the vessel (18) and heated.
[0009]
The floor covering material (11A) manufactured in this way is cut into a predetermined size to produce a recycled floor covering (11) as shown in FIG. 4. In this case, a recovered thermoplastic resin sheet ( Cut from the seam BL of the sequence of 2). Then, there is no sheet seam in the recycled floor covering (11), and the recycled floor covering (11) has substantially the same dimensions as the original floor covering (1). However, in the present invention, the original fabric (11A) is not necessarily cut along the seam BL. As shown in FIG. 5, the sheets (2) are connected to each other by the thermoplastic resin sol (12A, 12B) gelled material, that is, the thermoplastic resin film (12, 12) and the carpet (14). This is because it is filled and bonded by the gelled product of the thermoplastic resin sol (12A, 12B).
[0010]
In the present invention, as shown in FIG. 6, new reinforcing fiber sheets (13, 13) may be inserted on both sides or one side of the thermoplastic resin sheet (2). The carpet (4) may be removed by cutting with a slicer.
[0011]
【The invention's effect】
In the present invention, the recycling of the floor covering waste is performed very efficiently.
[Brief description of the drawings]
1 to 5 show an embodiment of the present invention.
[Fig. 1] Grinding process explanatory diagram [Fig. 2] Manufacturing process explanatory diagram [Fig. 3] Collected thermoplastic resin sheet arrangement diagram [Fig. 4] Recycled floor covering perspective view [Fig. 5] Seam BL partial explanatory diagram [Fig. 6] Side sectional view of another embodiment [FIG. 7] Side sectional view of a conventional floor covering material [FIG. 8] Manufacturing process explanatory diagram of a conventional floor covering material [Explanation of symbols]
1 Floor covering
2 Thermoplastic resin sheet
3,13 Reinforced fiber sheet
4 carpet
11 Recycled floor covering
12A, 12B Thermoplastic resin sol (melt)
14 new carpet

Claims (2)

After removing only the carpet part of the floor covering waste material on which the carpet is adhered to the surface of the thermoplastic resin sheet and collecting the thermoplastic resin sheet, the thermoplastic resin sheet is arranged vertically and horizontally and heated on the upper surface or both upper and lower surfaces. Recycled floor covering, characterized in that a plastic carpet sol or melt is applied and a new carpet is pressed onto it. The recycled floor covering material according to claim 1, wherein a reinforcing fiber sheet is interposed on one side or both sides of the waste material from which only the carpet portion is removed.

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