WO2002001989A1

WO2002001989A1 - Method for recycling carpet and recyclable carpet, and recycle system for recyclable carpet

Info

Publication number: WO2002001989A1
Application number: PCT/JP2001/005534
Authority: WO
Inventors: Kazuo Nagatsuma; Takao Horikoshi
Original assignee: Sankyo Frontir Co.,Ltd
Priority date: 2000-06-30
Filing date: 2001-06-28
Publication date: 2002-01-10
Also published as: AU2001267849A1

Abstract

A method for recycling a carpet which comprises reutilizing a carpet wherein a backing layer (5) and a surface layer (1) has been made from thermoplastic resin materials of the same type or different types and the backing layer (5) and the surface layer (1) have been adhered to each other by the use of a hot melt type adhesive (4), characterized in that it comprises a delamination step of peeling an old surface layer (1) from a backing layer (5) of a used carpet and an adhesion step of adhering a new surface layer (1) onto an old backing layer (5) from which a surface layer (1) has been peeled; and a method which further comprises a crushing step of crushing an old backing layer (5) and an old surface layer (1) separated, a regeneration step of producing a new backing layer (5) and surface layer (1) by regeneration, and an adhesion step of adhering them.

Description

Description Reproduction method of reproduction unit, reproduction unit, and recycling system of reproduction unit

The present invention relates to the recycling of carpet, and a method and a power for recycling a carpet capable of realizing resource saving in a consumer society in which disposable use is prominent. Regarding the recycling system of the carpet. Background art

In recent years, environmental issues have been highlighted and struggling with waste disposal methods in various fields.

A material that does not generate chlorine, NO x, and S 0 X during incineration at the time of disposal in a used pet pet is preferable. Therefore, it is environmental hygiene to select and use, for example, an olefin-based polymer material composed of only carbon and hydrogen as the material of the pile yarn and the base fabric material or the various nonwoven fabrics forming the surface layer. Is desirable.

In the past, however, synthetic materials such as acryl, polyester, nylon, and polypropylene have been used as the surface layer material in order to take advantage of various characteristics suited to the application, such as the price, texture, color, and performance of various fibers. These materials are used alone or as a mixture of many materials including natural fibers, and no materials are selected from the viewpoint of environmental health.

In addition, the material of the backing layer is polypropylene, which is an off-line polymer material from the viewpoint of suppressing the generation of toxic gas during incineration, the life of the incinerator, and the difficulty of regeneration treatment, as with the surface layer. And propylene Ethylene copolymerized polymer mixed with inorganic filler such as calcium carbonate, melt-kneaded, and methyl resin whose unit molecule is composed of carbon, hydrogen, and oxygen. It is environmentally desirable that the backing layer is formed of an acrylic resin-based sol or the like obtained in combination with a plasticizer as described above. In the past, however, the use of a mixture of vinyl chloride resin, inorganic fillers, and plasticizers has generally been common, because of its advantages in price, processability, and performance.

As described above, in the conventional carpet, it is extremely rare that the surface layer and the backing layer are made of materials that are desirable for environmental hygiene at the time of disposal. Moreover, the surface layer and the backing layer are often made of different materials. If the surface layer and backing layer of the power unit are made of different materials in this way, chemical regeneration in response to environmental problems, or oiliness by thermochemical decomposition recovery for thermal regeneration is also required. Also, when material is recycled by mechanically pulverizing and separating the resin of the backing layer to separate materials, it is difficult to separate and separate the fiber of the surface layer and the resin of the backing layer. There is a problem that the sorting process requires a lot of time, such as passing through FIG. 2 shows the structure of a conventional general cartridge. For example, a nonwoven fabric, a plain woven fabric, or the like is used for the base fabric 3 shown in the figure, and a surface layer 1 in which a pile yarn 2 such as a filament or a spun yarn is tufted, and a backing layer 5 mainly composed of vinyl chloride and calcium carbonate. They are generally constructed and the materials used in each part are different. This carpet has advantages such as its transportability, on-site transportability, ease of partial replacement, etc., as well as flexibility in the combination of colors and patterns, and has significantly increased market demand especially for offices and stores. ing. However, when disposing of these carpets, it is difficult to separate the materials and structures that make up the power pet for the above-mentioned reasons, and the current state of the consumer society is that all of them are landfilled or incinerated. It is.

Under these circumstances, if only disposal methods such as landfill and incineration In addition, it is necessary to actively regenerate the waste, and if it is to be discarded, it must first be in a state where it can be regenerated.

The present invention has been developed from such a point of view, and enables the reuse of a used carpet without waste, and supports all systems from manufacturing to sales, rental, and collection. In this way, waste can be reduced as much as possible, and resources can be saved in the consumer society. Recycling methods, recycling cartridges, and leasing units for recycling Vehicle system. Disclosure of the invention

According to the recycling method of the present invention, the backing layer and the surface layer are formed of a thermoplastic resin material, and the backing layer and the surface layer are bonded together with a hot-melt adhesive to reuse the force. In a method for regenerating a used carton, a regenerating method including a peeling step of peeling an old surface layer from a backing layer of a used carte and a bonding step of bonding a new surface layer on the old backing layer from which the surface layer has been peeled off. is there.

At this time, the backing layer and the surface layer are formed of the same, same or different thermoplastic resin material, and a bonding step of bonding a new same, same or same or different surface layer on the old backing layer from which the surface layer has been peeled off. And a reproduction method having

Another method of recycling is a method for reusing a carpet in which a backing layer and a surface layer are formed of a thermoplastic resin material, and the backing layer and the surface layer are bonded with a hot-melt adhesive. In the recycling method, a peeling step of peeling the backing layer and the surface layer of the used power unit, a crushing step of crushing the separated old backing layer and the old surface layer, and a foreign matter from the crushed backing layer and the surface layer Foreign matter separation process to remove crushed material, regeneration process to regenerate new backing layer and surface layer from each crushed material, reclaimed backing And a bonding step of bonding the surface layer and the surface layer with a hot-melt adhesive.

At this time, a regenerating method in which the backing layer and the surface layer are formed of the same, same or different thermoplastic resin material is included.

The regenerating power kit of the present invention is a regenerating power pet that enables reuse of a used carpet, wherein a backing layer and a surface layer made of a pile yarn and a base fabric are made of thermoplastic resin. A reclaiming card formed of a resin material, and the backing layer and the surface layer are bonded with a hot-melt adhesive.

At this time, the backing layer and the surface layer made of the pile yarn and the base fabric include a regenerative force unit formed of the same, same or different thermoplastic resin material.

As the hot-melt adhesive used in the recycling cartridge, a urethane resin-based hot-melt adhesive that melts at 60 to 100 ° C is used. In this case, the above-mentioned heat-fusible adhesive includes those processed into a film or a sheet.

The recycling system of the present invention recycles a recycling card in which the backing layer and the surface layer are formed of the same or the same thermoplastic resin material, and the backing layer and the surface layer are bonded with a hot-melt adhesive. The present invention relates to a recycling system for a unit of regenerating power. Collect the sold or rented rockets at the customer's request, remove the old surface layer from the backing layer of the garbage cleaning and reuse the rampets To bond a new, identical or homogeneous surface layer, reuse the old backing layer to regenerate a new reclaimed cartridge, or crush the separated old backing layer and old surface layer to form a new backing layer and surface layer It has a remanufacturing factory that recycles and recycles them to regenerate new regenerative power kits, and a product warehouse that houses and manages regenerative power sets. Information is exchanged with these maintenance factories, remanufacturing factories, and product warehouses via a computer network, and in response to customer requests, sales, rental, It is a recycling system with a management center that is in charge of maintenance and collection during use and collection.

At this time, the maintenance center or the recycling factory is instructed in the management center to set the reproduction carpet to a color scheme desired by the customer. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a side view of the carpet of the present invention.

FIG. 2 is a side view of a prior art force pet.

FIG. 3 is a view showing the peel strength of the carpet when the hot-melt adhesive used in the present invention is immersed in warm water.

FIG. 4 is a flowchart of a cartridge regeneration according to the present invention.

FIG. 5 is a flowchart of a peeling step of peeling a surface layer and a backing layer. FIG. 6 is a flowchart of the bonding step of bonding the regenerated surface layer and the backing layer.

FIG. 7 is a flowchart showing the recycling system of the present invention.

FIG. 8 is a block diagram showing computer communication in the management center of the present invention.

FIG. 9 is a diagram showing a carpet pattern change screen in the management center of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing a side surface of a force plate in which a surface layer 1 and a backing layer 5 are bonded and fixed with a hot-melt adhesive 4. In the figure, reference numeral 2 denotes a pile yarn, and 3 denotes a base fabric. L is obtained by tufting the pile yarn 2 into the base fabric 3 in a loop or cut shape. In addition, the configuration of the surface layer 1 includes a machine-woven pile woven fabric, a non-woven fabric as it is, or a non-woven fabric that is folded and adhered and fixed to the base fabric 3. As the base fabric 3, a melt blown nonwoven fabric, a spunbonded nonwoven fabric, a needle punched nonwoven fabric, or the like is used. As the backing layer 5, a sheet-like material processed by extrusion molding, calendar molding, press molding, paste molding, or the like is used.

When the backing layer 5 and the surface layer 1 are formed of the same or the same thermoplastic resin material, the pile yarn 2, the base fabric 3, and the backing layer 5 are completely separated for each material in the separation and separation when regenerating. Use the same or the same thermoplastic resin in consideration of cases where separation is not possible. Examples of combinations of the same type of thermoplastic resin include, for example, the case where pile yarn 2 of the surface layer 1 and polypropylene are used for the base fabric 3 and polypropylene elastomer is used for the top layer 5. There is.

Also, when the backing layer 5 and the surface layer 1 are formed of different thermoplastic resin materials, when the pile yarn 2 and the base fabric 3 cannot be completely separated for each material in separation and separation when regenerating. In consideration of the above, use the same or the same thermoplastic resin. Examples of the thermoplastic resin include, for example, polyester and polypropylene. In this case, the material of the backing layer 5 is a thermoplastic resin different from the surface layer 1 composed of the pile yarn 2 and the base fabric 3 alone, or a plasticizer or an inorganic Use composite materials mixed with fillers. Examples of this include, for example, vinyl chloride resin styrene butadiene rubber or the like as a thermoplastic resin, dioctyl phthalate as a plasticizer, and glass fiber or calcium carbonate as an inorganic filler. Considering heat shrinkage, durability, etc., use a blended one.

Combination of surface layer 1 consisting of pile yarn 2 and base cloth 3 and backing layer 5 As in the case of existing carpets, the selection can be made in consideration of price, texture, workability and performance. Examples of this combination include, for example, a combination of pile yarn 2 for the surface layer 1, polypropylene for the base fabric 3, and a mixed material of vinyl chloride, plasticizer, and glass fiber for the backing layer 5. .

The hot-melt adhesive 4 is intended to separate the surface layer 1 and the backing layer 5 by applying heat to reduce the adhesive strength by applying heat. Use the hot-melt adhesive 4 and use it alone or in combination. At the same time, this hot-melt adhesive 4 is used in consideration of the initial adhesiveness, the rewetting adhesiveness, and the degree and time during which the adhesive force is reduced by heating. When a film-like or sheet-like adhesive is used as the hot-melt adhesive 4, in addition to the above, an adhesive adjusted so as to be processed is used.

The results when urethane resin-based hot-melt adhesive 4 was used as hot-melt adhesive 4 are as follows. When this hot-melt adhesive 4 is used, it is applied to the bonding surface of the backing layer 5 to evaporate the solvent contained therein and pass through a constant temperature chamber at 80 ° C. so as to have a viscosity suitable for bonding. In this case, as the hot-melt adhesive 4, the hot-melt adhesive 4 processed into a film or a sheet is placed on the backing layer 5, and the temperature is kept at 80 ° C so as to have a viscosity suitable for bonding. It is also possible via. It takes about 3 minutes to travel through the constant temperature room. The adhesive strength of this adhesive is equivalent to the peel strength of the backing layer 5 of the currently commercially available tile carpet, and when immersed in warm water of 60 to 100, the surface layer 1 The adhesive strength decreases until the backing layer 5 can be easily peeled off (Fig. 3 shows the peel strength of this adhesive over time when immersed in warm water). In addition, as described above, after the hot-melt adhesive 4 is melted with warm water and the adhesive strength is reduced, pressure is applied again from the surface layer 1 and the force is applied in that state. —When the pot is cooled, the hot-melt adhesive 4 hardens again and has the same adhesive strength as the original. In addition, as a heating method at the time of performing peeling, it is also possible to use, for example, an infrared heater, a constant temperature chamber, or the like, in addition to hot water. The results when using the olefin resin-based hot-melt adhesive 4 as the adhesive are as follows. When this hot-melt adhesive 4 is used, it is applied to the bonding surface of the notching layer 5 to evaporate the solvent contained therein and pass through a constant temperature chamber at 120 ° C so as to have a viscosity suitable for bonding. I do. It takes about 3 minutes to travel through the constant temperature room. In this case, the heat-meltable adhesive 4 processed into a film or a sheet is placed on the backing layer 5 as the heat-meltable adhesive 4, and the temperature is adjusted to 120 ° so as to have a viscosity suitable for bonding. It is also possible through the constant temperature room of C. The adhesive strength of this resin-based hot-melt adhesive 4 is about 1/3 of that of the above-mentioned urethane resin-based hot-melt adhesive 4, and is 60- When immersed in hot water at 100 ° C., the adhesive strength decreases until the surface layer 1 and the backing layer 5 can be easily separated. In addition, as a heating method at the time of performing peeling, it is also possible to use, for example, an infrared heater, a constant temperature chamber, or the like, in addition to hot water.

The results obtained when an acryl-based pressure-sensitive adhesive was used as the hot-melt adhesive 4 are as follows. When this acrylic pressure-sensitive adhesive is used, it is applied to the adhesive surface of the surface layer 1 and the backing layer 5 and passes through a drying chamber at 80 ° C. in order to volatilize the solvent contained therein. The time to go through the drying room is about 1 minute. The adhesive strength of this acrylic pressure-sensitive adhesive is about half that of the urethane resin-based hot-melt adhesive 4, and when immersed in warm water at 60 to 100 ° C. However, the adhesive strength decreases until the surface layer 1 and the backing layer 5 can be easily separated.

From the above result comparison, it is preferable to use a urethane resin-based hot-melt adhesive having high adhesive strength.

Next, physical properties of the hot-melt adhesive 4 are shown in FIG. To measure this property, The peel strength of the backing layer of a currently sold tile sheet was measured, and this strength was used as the reference value 5, and the peel strength of the urethane resin-based hot-melt adhesive 4 was quantified. is there. Also, in the same figure, the change in peel strength over time when heated is shown. According to the figure, it can be confirmed that the peel strength decreases exponentially with time at each water temperature, and that the peel strength decreases significantly as the water temperature rises.

In the regeneration of the force unit performed in the present invention, the surface layer 1 and the backing layer 5 are mechanically separated and separated, but in order to enable this, the peel strength of the surface layer 1 and the backing layer 5 is set to 1.5 or less. Has been confirmed in preliminary tests. Therefore, it can be confirmed from FIG. 3 that in order to realize this, it is necessary to immerse in warm water at 60 ° C or more for about 1 to 3 minutes. As a heating method at the time of peeling, it is also possible to use, for example, an infrared heater, a constant temperature chamber, or the like, in addition to hot water.

On the other hand, there is a possibility of spilling drinks when using a power kit. In this case, for example, when a drink using hot water such as tea or kohi is spilled, the temperature is usually 50 to 60 ° C, so the adhesive strength decreases at low temperatures. It is conceivable that 1 and the backing layer 5 were peeled off and could not be used as a force pet. However, even if the boiling water is spilled, the hot-melt adhesive 4 used in the present invention does not peel off because the time of exposure to high temperature is reduced by wiping the carpet surface layer 1 immediately. When the cartridge is cooled under pressure from the surface layer 1, the adhesive is cured again, and the surface layer 1 and the backing layer 5 are bonded.

Next, FIG. 4 shows a flow chart of the power regeneration in the present invention. The used pets are once cleaned and cleaned, and those that can be reused depending on the degree of dirt are reused as they are, and for the others, the surface layer 1 and the backing layer 5 are separated. Details of the separation method will be described later. The separated surface layer 1 is finely crushed to facilitate removal of foreign substances such as sand and pebbles remaining inside. The material from which the foreign matter has been removed is used as a raw material for the raw material, which is recycled through a spinning process as a base fabric 3 typified by pile yarn, non-woven fabric, etc., and is recycled again as a surface layer 1 through processes such as evening footing. This process is performed by selecting an existing technology such as an extruder for the raw yarn and a tufting machine for the tufting.

The regeneration of the surface layer 1 described above can be performed with the surface layer 1 and the backing layer 5 even if it is assumed that the currently marketed power unit could be separated using the hot-melt adhesive 4 of the present invention. Are made of different materials, the material of the backing layer 5 is mixed into the surface layer 1 to some extent, and the yarn cannot be recycled as a thin yarn in the original yarn manufacturing process. For example, in the case of dissimilar materials, the melting temperature is different and they are not integrated, resulting in breakage of the yarn or the sandy inorganic filler contained in the backing layer 5 clogging the nozzle. There is a case. In the present invention, when the surface layer 1 and the backing layer 5 are made of the same or the same thermoplastic resin, even if the backing layer 5 is mixed to some extent, the yarn is produced without any trouble in the raw yarn manufacturing process using the surface layer 1 material. It can be manufactured.

However, when the surface layer 1 and the backing layer 5 were bonded to each other using the hot-melt adhesive 4 and separated into the surface layer 1 and the backing layer 5 by the method described later, the backing layer 5 The test confirmed that no material was mixed.

Also, the thermoplastic resin material used as the backing layer 5 which is the same or the same quality as the surface layer 1 is very expensive. It is also possible to use a different thermoplastic resin material for the backing layer 5 and the backing layer 5.

On the other hand, the backing layer 5, unlike the surface layer 1, has less wear and dirt during use and can withstand normal use as the backing layer 5, so it is not used. Reused. However, those that cannot be used clearly due to damage, etc. will be crushed in order to easily remove foreign substances such as sand and pebbles attached to the backing, and to make it easier to use as a raw material. The material from which the foreign matter has been removed becomes the raw material of the backing layer 5 and is recycled as the packing layer 5 through dedicated equipment. This regeneration step is performed by selecting a currently existing technology, for example, using an extruder.

The surface layer 1 and the backing layer 5 regenerated as described above are adhered to the surface layer 1 and the backing layer 5 using a hot-melt adhesive 4 as shown in FIG.

FIG. 5 shows the flow of the peeling step between the surface layer 1 and the backing layer 5 performed in the above-mentioned regeneration step. After use, the cleaning unit is cleaned and maintained, and the force unit determined to be unusable is immersed in warm water adjusted to 60 to 100 ° C for 1 to 3 minutes. As a result, the hot-melt adhesive 4 melts and the adhesive strength is reduced. In addition, as a heating method in this case, for example, infrared light, a constant temperature room, or the like can be used in addition to the hot water.

The heated cartridge is immediately put on a peeling device. Although there are various types of this peeling step, for example, there are a pair of upper and lower rollers having different speeds, and the surface layer 1 and the backing layer 5 are separated by the speed difference. The surface layer 1 and the backing layer 5 separated by this process are individually collected and regenerated in the next step.

Next, the flow of the bonding process of the surface layer 1 and the backing layer 5 is shown in FIG. The surface layer 1 and the backing layer 5, each of which has been independently regenerated, are applied to the bonding equipment with the bonding surface up. Here, first, the hot-melt adhesive 4 is applied to the adhesive surfaces of the surface layer 1 and the backing layer 5 by brush coating, roller coating, spraying, or the like. The attached hot-melt adhesive 4 is a drying chamber adjusted to 80 to 120 ° C so that the solvent contained in the hot-melt adhesive 4 can be volatilized and the hot-melt adhesive 4 has a viscosity suitable for bonding. Via. Through this drying room The time required is about 1 to 3 minutes. After the hot-melt adhesive 4 is in a state suitable for bonding, the surface layer 1, which is turned upside down and the bonding surface faces down, is placed on the backing layer 5 and pressed for about 1 minute. Conversely, there is no problem if the backing layer 5 is turned upside down and the bonding surface faces down on the surface layer 1 and pressed in the same manner. Thereafter, the hot-melt adhesive 4 gradually cures as the temperature drops to room temperature, and the surface layer 1 and the backing layer 5 are bonded. However, in order to improve the adhesive strength, the burrs are left for a while, and the burrs at the edges are cut so that the specified side of each side becomes 500 mm.

At this time, when the hot-melt adhesive 4 processed into a film or a sheet is used as the hot-melt adhesive 4, the following results are obtained.

First of all, the backing layer 5 of the surface layer 1 and the backing layer 5 which are individually regenerated is applied to the bonding equipment with the bonding surface facing up. Here, first, a film-shaped or sheet-shaped hot-melt adhesive 4 is disposed on the backing layer 5, and the hot-melt adhesive 4 has a viscosity of 80 to 120 ° so that the adhesive has a viscosity suitable for bonding. Via a constant temperature room adjusted to C. It takes about 1 to 3 minutes to pass through this constant temperature room. After the hot-melt adhesive 4 is in a state suitable for bonding, the surface layer 1 with the bonding surface facing down is placed on the backing layer 5 and pressed for about 1 minute. Thereafter, the hot-melt adhesive 4 hardens one after another as the temperature drops to room temperature, and the surface layer 1 and the backing layer 5 are bonded. However, it is left for about one day after this to improve the adhesive strength, and the burr at the end is cut so that one side of the specified dimension becomes 500 mm, and a pet with one regenerative power is completed.

FIG. 7 shows the flow of the recycling system of the present invention. In the figure, a maintenance shop 10 is provided to collect sold or rented power pets at the customer's request, to clean and reuse power pets.

In addition, the old surface layer 1 is peeled off from the backing layer 5 of the used regenerative force pet, and a new same or homogeneous surface layer 1 is bonded, and the old regenerative power unit is recycled by reusing the old backing layer 5 Old or isolated old back A regeneration plant 20 that crushes the backing layer 5 and the old surface layer 1 to regenerate the new backing layer 5 and the surface layer 1 and bonds them to regenerate a new regenerative power unit, and a regenerative power unit And a product warehouse 30 for housing and managing the products.

Combined with the maintenance shop 10, remanufacturing factory 20, and product warehouse 30, exchanging information through the evening and selling, renting, and maintaining the refurbished carts in use in response to customer requests It is equipped with a management center 40 that accepts management and collection.

FIG. 8 is a block diagram showing the computer-to-computer communication at the management center 400. As shown in the figure, management center 40 is set up so that customer needs can be grasped via the Internet. In addition, data is exchanged via the central processing unit with the maintenance department management department of the maintenance factory 10, the regeneration factory management department of the regeneration factory 20, or the product management department and the delivery management department of the product warehouse 30. . Furthermore, the management system can be subsidized by processing software such as carpet placement software, customer service software, and information management software. The management center 40 also performs a task of instructing the maintenance factory 10 or the regeneration factory 20 to set the reproduction power unit to a color scheme desired by the customer. The carpet placement software provided at Management Center 40 provides standard carpet color layout, receives placement information according to customer requests, and checks the information on the Internet. For example, on the carpet pattern changing screen shown in Fig. 9, the customer creates a colored image by specifying the color of each grid in a grid pattern to the desired color selected from the color table. When the image is transmitted, data is sent from the management center 40 to the reproduction factory 20, and the reproduction power unit is set to the color scheme according to the color image of the customer. According to the present invention, as described above, the backing layer 5 still usable can be repeatedly reused from the used carpet. In addition, since the surface layer 1 and the backing layer 5 are each crushed and a new backing layer 5 and surface layer 1 can be regenerated from each material, almost all the materials can be reused without waste of used carts. Can be.

Further, the heating reduces the adhesive strength of the hot-melt adhesive 4, and the surface layer 1 and the backing layer 5 can be easily separated and separated and separated. It has the effect of being able to be reused in a regenerated manner and to be able to be reproduced as a single pet.

Furthermore, the recycling system of the present invention has established a system that supports all systems from manufacturing to sales, rental, and collection, so that waste is reduced as much as possible and resource saving in the consumer society is realized. Can be done. In addition, there is no burden on the customer who uses the reusable power unit to dispose of the used power unit.

In addition, it is possible to extremely easily provide a reproduction cartridge having a color scheme that meets the wishes of the customer. Industrial applicability

As described above, according to the method for regenerating the power unit, the power unit for regenerating, and the recycling system for the power unit for regenerating according to the present invention, in a consumer society in which disposable products are conspicuous, A pet rehabilitation market can be realized.

Claims

The scope of the claims

1. The backing layer and the surface layer are formed of a thermoplastic resin material, and the backing layer and the surface layer are bonded with a hot-melt adhesive. A carpet characterized by having a peeling step of peeling an old surface layer from a backing layer of a used pet and a bonding step of bonding a new surface layer on the old backing layer from which the surface layer has been peeled. Playback method.

2. The method according to claim 1, wherein the backing layer and the surface layer are formed of the same or the same thermoplastic resin material, and further comprising a bonding step of bonding a new same or the same surface layer to the old backing layer from which the surface layer has been peeled off. How to play the car.

3. The backing layer and the surface layer are formed of a different thermoplastic resin material, and a bonding step of bonding a new surface layer different from the backing layer on the old backing layer from which the surface layer has been peeled off. How to play the carpet.

4. In a method for regenerating a unit which reuses a cartridge in which a backing layer and a surface layer are formed of a thermoplastic resin material, and the backing layer and the surface layer are bonded with a hot-melt adhesive. A peeling step of separating the backing layer and the surface layer of the used power unit, a crushing treatment step of crushing the separated old backing layer and the old surface layer, and a foreign matter for removing foreign matter from the crushed backing layer and the surface layer A separation step, a regeneration step of regenerating a new backing layer and a surface layer from each crushed material, and a bonding step of bonding the regenerated backing layer and the surface layer with a hot-melt adhesive. How to regenerate a pet.

5. The method of claim 4, wherein the backing layer and the surface layer are formed of the same or the same thermoplastic resin material.

6. The method of claim 4, wherein the backing layer and the surface layer are formed of different thermoplastic resin materials.

7. This is a regenerating power kit that allows the reuse of a used carpet, in which a backing layer and a surface layer made of a pile yarn and a base fabric are formed of a thermoplastic resin material, A reproducing power unit characterized in that the backing layer and the surface layer are bonded with a hot-melt adhesive.

8. The recycling card according to claim 7, wherein the backing layer and a surface layer made of a pile yarn and a base fabric are formed of the same or the same thermoplastic resin material.

9. The regenerative power kit according to claim 7, wherein the backing layer and a surface layer made of a pile yarn and a base fabric are formed of a different thermoplastic resin material.

10. The regenerative power kit according to claim 7 or 8, wherein the hot-melt adhesive is a urethane resin-based hot-melt adhesive that melts at 60 to 100 ° C.

11. The hot-melt adhesive is a urethane resin-based hot-melt adhesive that melts at 60 to 100 ° C, and is used in the form of a film or a sheet. The power unit for reproduction described in 7 or 9.

12. Recycling power for recycling a pet with a backing layer and a surface layer made of the same or the same thermoplastic resin material and bonding the packing layer and the surface layer with a hot-melt adhesive In a pet recycling system, a repair shop that collects sold or rented pets at the customer's request, cleans and reuses the pets, and a used recycle pet The old backing layer is separated from the old backing layer and a new same or similar surface layer is adhered, the old backing layer is reused to regenerate a new regeneration carpet, or the separated old backing layer and old surface layer are crushed. A new factory for recycling new backing layer and surface layer and bonding them together to regenerate a new cartridge for renewal, and a product warehouse for accommodating and managing regenerative power kits. Combined with a storage plant, remanufacturing plant, and product warehouse. Exchange information via the U.S.E.network, and in response to customer requests, sell, rent, remanufacture, and collect in-use recyclable pets. A recycling system for recreational power kits, characterized by having a management center that accepts contracts.

13. The remanufacturing unit according to claim 12, wherein the maintenance center or the remanufacturing plant is instructed at the management center to set the refurbishment cartridge to a color scheme desired by the customer. Recycling system.