JP6134886B2 - Method and apparatus for recycling treatment of used tile carpet - Google Patents

Description

  In the present invention, the loop pile yarn and the backing layer constituting the carpet layer are separately separated and recovered from the used tile carpet comprising at least a carpet layer made of loop pile yarn and a backing layer, and separated from the tile carpet. In addition, the used tile carpet regeneration processing method can transport the backing layer to the backing layer regeneration processing region and can easily provide the loop pile yarn separated from the tile carpet to the regeneration processing step. And an apparatus for the same.

Thirty years have passed since the use of tile carpets, and a large number of used tile carpets are in the process of being renewed. Carpet disposal has become a major social problem, including for the government.
That is, the used tile carpet is generally handled as industrial waste, and until now, the used tile carpet is burned, pulverized, or embedded in the ground as it is. Has been taken.

  However, on the other hand, since the necessity to suppress the increase in environmental load and prevent the occurrence of environmental pollution has increased remarkably in recent years, the disposal method of the used tile carpet is a disposal method. And disposal rules have been strictly set, the disposal of these wastes has become difficult year by year, and the costs associated with disposal have become enormous. However, the producers are suffering from the increased burden.

By the way, the tile carpet is generally formed in a square of 500 mm × 500 mm, and basically, a backing layer (backing layer) mainly composed of a vinyl chloride resin-based material and a nylon-based synthetic material. A carpet layer (fiber layer) formed by densely planting pile yarns made of fibers is formed by lamination and composite.
And, if the used tile carpet is to be disposed of using the incineration means, there is a problem that dioxin is generated from the vinyl chloride resin material component contained in the backing layer. The disposal method that uses the material has become more difficult, and if the combustion temperature at the time of the combustion process is set to a considerably high temperature, a certain amount of disposal process is possible, but there is a big problem that the cost increases. Occur.

Because of the above background, the disposal method for collected used tile carpets has not been completely established, so the concept of trying to reuse the collected used tile carpets without discarding them is a social issue. It has become.
However, as for the so-called recycling technology for effectively recycling the used tile carpet and using it as the same product or a completely different new product, no reliable technology has been developed at this stage. is the current situation.

  In order to solve such problems, the government also provides various support measures including subsidy supply to support the development of waste tile carpet disposal and recycling technology. However, at the present stage, no innovative technological development has been found regarding the recycling technology of the used tile carpet.

Here, as the recycling technology defined by the administrative side, almost 100% of all the constituent materials constituting the tile carpet are collected and used for recycling as the same or different products, or infinitely 100 It is necessary that all the constituent materials constituting the tile carpet close to% are used for recycling as the same or different products.
Therefore, in order for the used tile carpet to be freed from industrial waste designation, at least substantially the entire amount of the vinyl chloride resin material constituting the backing layer and substantially the entire amount of nylon fiber constituting the carpet layer are regenerated. It is necessary to create a situation that is used as a product.

  By the way, about 65% of the total weight of a normal tile carpet is occupied by the vinyl chloride resin material constituting the backing layer, and the remaining about 35% is pile yarn constituting the carpet layer. A base material mainly composed of a polyester synthetic fiber or the like in which a fiber material mainly composed of a certain nylon synthetic fiber, the pile yarn is implanted, and the pile yarn are temporarily attached to the base fabric. The total weight of the base fabric and the adhesive is about 5% at most with respect to the fiber weight of the pile yarn. These can be separated appropriately in the subsequent process and incinerated or used by mixing with other materials.

Therefore, when considering the recycling of tile carpets, both the backing layer and the carpet layer are efficiently separated, and the materials and materials constituting each layer are 100% or nearly 100%. It is important to build a system that performs playback processing in a state.
By the way, it is a well-known fact that vinyl chloride resin material is a resin component that is extremely easy to repeat melting and molding. Therefore, if the backing layer can be separated from the tile carpet in a pure form. The new backing layer for tile carpet is obtained by collecting the backing layer, performing remelting treatment, and molding again.
On the other hand, generally, the product field comprised using a nylon synthetic fiber is wide, and it is utilized for various goods or materials including the industrial material field | area.

  However, even if the nylon-based synthetic fiber constituting the carpet layer of the tile carpet is separated from the backing layer, a large number of the above-described resins are attached and impurities are included, or Although each fiber has an extremely short fiber length, does not maintain linearity, and is refracted or curved, it is used in many applications that use nylon-based synthetic fibers. However, since there are many problems in the conveyance or processing of the material, it is difficult to use the nylon synthetic fiber as a recycled product.

Therefore, if the nylon synthetic fiber separated from the tile carpet does not contain the impurities, a substantially pure nylon synthetic fiber is obtained, and a recycled product is processed and manufactured using the nylon synthetic fiber. If the nylon synthetic fiber is supplied in a form that can be efficiently used in the process, it is separated from the tile carpet and recycled at a regeneration rate of 100% or near that of other nylon synthetic fibers. It is possible to complete the system.
From this point of view, when reviewing the conventional development technology, for example, in the United States, for example, the used tile carpet is washed, and the carpet layer on the surface is dyed again and patterned. Although it is reused, it is difficult to sufficiently remove the stain on the carpet layer once soiled, and the color of the dyeing is necessarily limited to a dark color.

On the other hand, as a conventional technique for reusing tile carpets, there are techniques described in Patent Documents 1 and 2, for example.
In these techniques, a surface decorative resin layer is formed on the front or back surface of the waste material obtained by substantially cutting and removing the carpet layer using a cutting device such as a clipper.
The reason why the carpet layer is substantially cut and removed is that when the carpet layer exists, an adhesive or a pressure-sensitive adhesive cannot be applied to the surface. Therefore, in these techniques, it was necessary to substantially cut the carpet layer.

However, since a carpet layer mowing process is required, this causes an increase in cost, and it has been found that a clipper or the like cannot actually trim the carpet layer.
In addition, a method of finely pulverizing the recovered tile carpet described in Patent Documents 3 to 5 and separating the carpet layer and the vinyl chloride backing layer by a specific gravity separation method or the like is generally performed. It takes a lot of energy to pulverize, and the noise during pulverization is large.
However, the crushed lump is only scheduled to be incinerated. Regarding the technical idea of how to use such lump as a raw material for some of the recycled products, There is no disclosure or suggestion.

Further, Patent Document 6 proposes to make a tile carpet using a backing layer that can be easily crushed by freezing to minus 30 ° C. or lower. However, soft vinyl chloride already on the market has been proposed. In order to apply to a tile carpet as a backing layer, the freezing temperature must be extremely low.
However, Patent Document 6 has no disclosure or suggestion as to how the carpet layer is processed into a renewable raw material.

  Both of these techniques are based on the idea that the vinyl chloride backing layer of a tile carpet can be reused if it can be recovered with less intermixing. Therefore, the premise is that the nylon fibers mainly constituting the loop pile yarn are removed and discarded or incinerated, and the idea is that they are removed from the tile carpet even if they are cut or pulverized. However, these methods do not completely remove the crushed tile carpet debris, and are mixed into the recovered vinyl chloride backing layer, causing the quality to deteriorate.

Since textile waste is a large amount of waste because clothing waste cannot be reused, it may be impossible to use recovered fiber from tile carpet now, but the material is limited to nylon If it is possible to collect the fiber that has not been finely pulverized and retains a certain length as a fiber, it will be possible to recycle it.
In order to solve these problems, the inventors previously filed a patent application for the technique of Patent Document 7.
Although this technology succeeded in efficiently recovering and reusing the vinyl chloride backing layer, the carpet layer and the base fabric layer with the vinyl chloride compound stuck together are the parts other than the vinyl chloride backing layer. In order to individually reuse, for example, the polyester fiber and the nylon fiber yarn constituting the loop pile yarn constituting the base fabric layer, the carpet layer and the base fabric layer fiber must be separated and recovered. .

In addition, a large amount of ear burrs are generated at the time of manufacturing the tile carpet. However, since these ear burrs have a unique shape, it is difficult to solve even in Patent Document 7.
In order to increase the dimensional accuracy of the tile carpet, this ear burr is produced on a production process that occurs when a wide and long sheet is once pasted with a carpet layer and a vinyl chloride backing layer and punched with a punch in the shape of a tile carpet. It is a by-product generated in large quantities.

On the other hand, in Patent Document 10, as a method of reusing used tile carpet, the used tile carpet is not separated into the carpet layer and the backing layer, but the used tile carpet is finely cut and granular. There is a technique in which a lump is formed, and this is mixed with a newly prepared PVC synthetic resin for forming a backing layer and used as a backing layer of a novel tile carpet.
This technology was developed based on the premise that it is impossible to completely separate the carpet layer and the backing layer from the used tile carpet. In the sense of producing recycled tile carpet in the form, the objective is seen to have been achieved, but in such a method, only one generation is regenerated, and the second generation or even the third generation tile carpet. It's just a technology that doesn't work at all.

  In other words, the backing layer of the recycled tile carpet manufactured by the above technology contains a large amount of particulate matter that is a mixture of pile yarn and resin of the backing layer in the vinyl-based synthetic resin, which requires extra cost for separation. Is obvious.

In addition, as shown in Patent Document 11 and Patent Document 12, the applicant of the present application uses a used tile carpet as a backing layer of a recycled tile carpet. Although the technology of stacking and arranging the tile carpets that have already been disclosed has been disclosed, such technology can also be reused up to the third generation. However, since the thickness of the backing layer increases at higher generations, it is practical. There is a problem of being unable to withstand.
On the other hand, as described above, as a method of challenging the past technical idea that it was impossible to completely and easily separate the carpet layer and the backing layer from the used tile carpet, the applicant of the present application 8 and Patent Document 9 are proposed.

In such a technology, it becomes possible to completely and easily separate the carpet layer and the backing layer from the used tile carpet efficiently and at low energy without deteriorating the working environment. Is evaluated as a breakthrough technology.
However, even with such a new technology, even if there is no problem in the regeneration treatment of the backing layer, the pile yarn separated from the carpet layer is formed in an appropriate form or suitable length for the fiber regeneration treatment process, which is a downstream process. Since the means that can be supplied was not developed, practical use was delayed.
That is, conventionally, there has been an idea of separating and reusing the pile yarn 3 from the tile carpet 1, but if the pile yarn 3 is separated from the tile carpet 1, Even if it has a certain fiber length, when the tension is removed, a loop-like form as a pile remains as a habit, so that shrinkage occurs and the fibers are entangled into a lump, so that the fibers are ordered. Since the properties are completely lost, it is practically impossible to reuse them in the subsequent process.
In other words, if a complete recycling system capable of reusing the tile carpet 1 is constructed, the pile yarns constituting the carpet layer remain in the state of long fibers, and a plurality of pile yarns are parallel to each other. It is necessary to be supplied to the regeneration processing step of the fiber product in the form of a fiber sheet or fiber bundle in an arrayed state, and the reprocessing processing is easy to process on the side of the fiber regeneration processing step. It is necessary to have the convenience of being easy, and furthermore, the fiber product supplied for the regeneration treatment must be low in cost, and for this purpose, the separation treatment step is The reality is that strict conditions are required that are simple, easy to operate, short in processing operation time, and low in energy costs such as electric power.
Therefore, in order to enable the pile yarn 3 separated and collected from the tile carpet 1 to be efficiently and economically reused in the subsequent process, the pile yarn 3 separated and collected from the tile carpet 1 is used. However, in order to improve the handleability in the post process, the orderliness between the fibers of the pile yarn group separated from the tile carpet is maintained, and the handleability is improved as a fiber raw material in conveyance and post processing. It was desired to have an excellent form. Furthermore, it has also been desired that the pile yarn group has a form in which the orderliness between the fibers is maintained even when the tension is removed.

In order to solve the problem, the inventor of the present application particularly pays attention to a tile carpet recycling method disclosed in Patent Document 9 (Patent No. 4357939), and among them, FIG. An effective method for effectively separating the backing layer, the base fabric layer, and the loop pile yarn forming the carpet layer constituting the tile carpet from the tile carpet shown in FIG. 7 is effective. In order to solve the above technical problems, various experiments have been repeated while using the tile carpet as a means for separating the tile carpet.
However, even in the above-described method, the used tile carpet (500 mm × 500 mm) is moved up or down as shown in FIG. In order to divide the backing layer 2 and the base fabric layer 5 finely and to perform an operation for extending the loop pile yarn, the pressing member 70 has a load of about 2 t (tons). In addition, it is necessary to apply a considerable load to the first gripping portion 21 and the second gripping portion 21 ′. As a result, the entire apparatus is increased in size, weight, The need for toughening has emerged, so material costs have increased, driving power has increased, energy costs have soared, operations are complicated, and operation speed in each process is reduced. Because of the occurrence Decreased work efficiency, from causes such as that amount operation cost is also increased, the ideal and the, it was not possible to produce a fibrous material of low cost regeneration process for.

  JP 2000-220281 A   JP 2000-220282 A   Japanese Utility Model Publication No.59-132581   Japanese Utility Model Publication No.59-132582, page 1   Japanese Patent Application Laid-Open No. 8-32117, page 2, paragraph 0005   Japanese Patent Laid-Open No. 9-073197, page 3, paragraph 0018   Japanese Patent Application No. 2002-320421 (Japanese Patent Application Laid-Open No. 2005-144076)   Japanese Patent No. 4126340   Japanese Patent No. 4357939   JP 2006-037274 A   JP 2006-116298 A   JP 2005-282348 A

  Accordingly, an object of the present invention is to solve the above-mentioned problems in the prior art and to produce a fully recycled product including the tile carpet from the used tile carpet. As a fiber bundle or a fiber sheet in which a plurality of pile yarn groups constituting the carpet layer are arranged in parallel with each other from the separated carpet layer at the same time as completely separating the layer and the backing layer Used tile carpet that can be implemented in a simple device that can be provided in the post-process, the processing operation is simple, the processing speed is fast, and less energy is consumed, and the cost of textile products for recycling can be reduced as a whole. And a recycling processing apparatus for the used tile carpet.

In order to achieve the above-described object, the present invention basically employs a technical configuration as described below.
That is, as a first aspect of the present invention, a tile carpet composed of at least three layers of a carpet layer composed of a loop pile yarn, a base fabric layer, and a backing layer is stretched in the stitch direction of the loop pile yarn to thereby form the backing layer. The loop pile yarn is peeled off from the base fabric layer or the backing layer while the loop pile yarn constituting the carpet layer is stretched so as to eliminate the loop while breaking a part of the base fabric layer. When separating the tile carpet individually from the base fabric layer or the backing layer, the tile carpet is divided into a first gripping means for mechanically gripping one end of the tile carpet and the other end of the tile carpet. A tile carpet between the first gripping means and the second gripping means. The tile carpet is stretched in the stitching direction by pressing with a pressing member that moves up and down to break a part of the backing layer and the base fabric layer, and at the same time, the loop pile yarn constituting the carpet layer is In the method of separating and recovering each constituent material of tufted type tile carpet with loop pile yarn, which is constructed so as to be stretched and separated from the base fabric layer, the pressing member can be rotated. And a plurality of protruding members arranged on the outer surface of the cylindrical body, and when the pressing member presses the tile carpet, the protruding member is a warp of the warp that forms the base fabric layer. A method for recycling a used tile carpet, characterized in that a part of the tile carpet is partially cut, and the second aspect of the present invention. Basically, a tile carpet composed of at least three layers of a carpet layer composed of a loop pile yarn, a base fabric layer, and a backing layer is stretched in the stitch direction of the loop pile yarn to form one of the backing layer and the base fabric layer. The loop pile yarn is peeled off from the base fabric layer or the backing layer while stretching the loop pile yarn constituting the carpet layer so as to eliminate the loop at the same time as breaking the portion, thereby making the loop pile yarn the base fabric layer or An apparatus for individually separating the backing layer, wherein the tile carpet is mechanically gripped by first gripping means for mechanically gripping one end of the tile carpet and the other end of the tile carpet. The tile having a second gripping means for gripping and gripped between the first gripping means and the second gripping means The carpet is pressed, and the tile carpet is stretched in the stitching direction to break the backing layer and a part of the base fabric layer, and at the same time, the loop pile yarn constituting the carpet layer is stretched so that the loop is eliminated. In a device for separating and recovering each constituent material of a used tile carpet composed of a pressing member capable of moving up and down and having a function of separating from the base fabric layer, the pressing member is constituted by a rotatable cylindrical body. At the same time, a plurality of protruding members are arranged on the outer surface of the cylindrical body, and when the pressing member presses the tile carpet, the protruding member partially part of the warp constituting the base fabric layer. A used tile carpet recycling apparatus characterized by being configured to cut.

  Since the present invention basically employs the technical configuration as described above, in order to manufacture a completely recycled product including a tile carpet from the used tile carpet, the carpet is used from the used tile carpet. As a fiber bundle or a fiber sheet in which a plurality of pile yarn groups constituting the carpet layer are arranged in parallel with each other from the separated carpet layer at the same time as completely separating the layer and the backing layer The complete recycling system configured to take out and supply the fiber bundle or fiber sheet to the downstream fiber regeneration process can be completed, can be executed with a simple device, the processing operation is simple, and the processing speed Used tile car that is faster and consumes less energy, and that can reduce the cost of textile products for recycling as a whole It is possible to provide a reproducing apparatus of Tsu City of reproduction processing method, and the spent tile carpet.

FIG. 1 is a diagram showing a configuration of a specific example of a used tile carpet regeneration processing system according to the present invention. FIG. 2 is a schematic view showing a specific example of a used tile carpet according to the present invention. FIG. 3 is a diagram for explaining the principle of the method for recycling used tile carpets according to the present invention. FIG. 4 is a diagram for explaining the principle of the method for recycling used tile carpets according to the present invention. FIG. 5 is a diagram illustrating the configuration of a specific example of the protruding member according to the present invention. FIG. 6 is a diagram illustrating the configuration of a specific example of the protruding member according to the present invention. FIG. 7 is a diagram illustrating a specific example of the configuration of the cylindrical body according to the present invention. FIG. 8 is a diagram illustrating a specific example of the configuration of the cylindrical body according to the present invention. FIG. 9 is a diagram illustrating a specific example of the operation of the used tile carpet regeneration processing apparatus according to the present invention.

Hereinafter, an example of a configuration in a specific example relating to a method and an apparatus for recycling a used tile carpet according to the present invention will be described in detail with reference to the drawings.
That is, FIG. 1 is a view showing an example of the configuration of a specific example of the used tile carpet regeneration processing method according to the first aspect of the present invention, in which a carpet layer comprising at least a loop pile yarn 3 is shown. 4, the base fabric layer 5, and the backing layer 2, the tile carpet 1 is stretched in the stitch direction of the loop pile yarn 3 to partially break the backing layer 2 and the base fabric layer 5. 4 is peeled from the base fabric layer 5 and / or the backing layer 2 while being stretched so that the loop is eliminated, so that the loop pile yarn 3 is separated from the base fabric layer 5 and / or When the tile carpet 1 is individually separated from the backing layer 2, the tile carpet 1 is mechanically gripped by one end of the tile carpet 1 and the tile carpet 1. The other end of the pet 1 is gripped by the second gripping means 21 ′ that mechanically grips, and the tile carpet 1 between the first gripping means 21 and the second gripping means 21 ′ is moved up and down. When the tile carpet 1 is stretched in the stitching direction by being pressed by the pressing member 70, the backing layer 2 and a part of the base fabric layer 5 are broken, and at the same time the loop pile yarn 3 constituting the carpet layer is In the method of separating and recovering each constituent material of the tufted type tile carpet 1 having the loop pile yarn 3 which is stretched so as to be eliminated from the loop and separated from the base fabric layer 5, the pressing The member 70 is composed of a rotatable cylindrical body 71, and a plurality of projecting members 72 are arranged on the outer surface of the cylindrical body 71. The pressing member 72 is the tile carpet. A method for recycling a used tile carpet, characterized in that the protruding member 72 is configured to partially cut a part of the warp 73 constituting the base fabric layer 5 when pressing 1. It is shown.

That is, the basic technical idea of the present invention is to improve the problems of the prior art as described in the description of the prior art.
That is, in the prior art, when the used tile carpet 1 is regenerated, a tensile tension is applied in the pile yarn arrangement direction of the tile carpet 1 so that the tile carpet 1 is arranged in the pile yarn arrangement. When the loop pile yarn 3 is separated from the backing layer 2 or the base fabric layer 5 by being stretched in the direction, it is the same as the arrangement direction of the pile yarns of the tile carpet 1 in the base fabric layer 5. A large number of yarns 73 arranged in the direction (referred to as warp yarns) are arranged in parallel to each other, and all of the warp yarns 73 must be cut simultaneously and in a short time. However, for that purpose, it is necessary to temporarily apply excessive tension to the base fabric layer 5 to cut the warp yarn 73 of the base fabric layer 5. For this purpose, the tile carpet 1 The tension press The entire device must be large and sturdy, and the tension applying means must be large and configured to exert a strong pressure. Otherwise, Generally, it is required to apply a load of about 2 tons to press and separate one tile carpet 1, and in some cases, there is a risk that the pressing member itself is curved, deformed, or damaged. was there.

Therefore, in the conventional tile carpet regeneration processing equipment, the manufacturing cost is greatly increased from the viewpoint of material cost, and each processing operation is complicated and takes time. Since the efficiency is low and the amount of energy consumed is also increased, the production efficiency is low, and therefore the production cost is inevitably increased.
Therefore, the basic technical idea of the present invention is that when the regeneration process is performed, the warp 73 group of the base fabric layer 5 of the tile carpet 1 is partially cut using a small amount of energy in advance. Or a state in which the warp thread 73 is all or most of the warp 73 is cut by a part of the warp thread 73 or a part of the warp thread 73 is easily cut. A predetermined tension is applied to the entire base fabric layer 5, and the warp group 73 of the base fabric layer 5 is cut 75 at a stretch.

  Thus, in order to cut a part of the warp 73 group of the base fabric layer 5 or to give a state that the part of the warp 73 group is easily cut, the base fabric is applied with a large tension. It is not necessary to apply to the layer 5, and according to experiments, a part of the warp yarn group 73 included in the region having a width of about 5 cm in the warp yarn 73 group in the base fabric layer 5. It has been found that it is sufficient to apply a tension of about 200 kg in order to cut with the tile carpet 1 by repeating the operation a plurality of times under such a relatively low tension. After cutting all or substantially all warp yarns 73 arranged in the width direction of the cylindrical body 71, that is, in the rotational axis direction of the cylindrical body 71, the tension in the width direction of the tile carpet 1 is higher than the tension used so far. By applying a slightly higher tension, The backing layer 2 to layer 5 early it becomes possible to break simultaneously.

In other words, according to the present invention, it is not necessary to apply the tension of 2 tons or more required in the prior art, and the loop pile yarn is used from the used tile carpet 1 with the tension of about 5 to 10 times. 3 can be separated completely and reliably without cutting the loop pile yarn 3 in the middle.
As a result, the used tile carpet regeneration processing apparatus used in the present invention can be reduced in size and weight, and the amount of energy required for separation processing can be saved. This simplifies and simplifies the processing operation, and it is possible to significantly reduce the overall manufacturing cost in combination with the improvement of the processing speed and the improvement of the work efficiency.
Further, in the present invention, the loop pile yarn 3 of the tile carpet 1 is locally applied to a part of the warp yarn of the base fabric layer 5 without being cut or broken. Since the pressure higher than the pressure is applied, the warp thread 73 of the base fabric layer 5 can be cut with a relatively small tension.

The yarns 74 arranged in the direction perpendicular to the warp yarns 73 of the base fabric layer 5 are referred to as weft yarns. In the present invention, the weft yarns 74 are separated and separated from the loop pile yarns 3. Since there is almost no influence on the processing operation, an operation for deliberately cutting the weft 74 is not necessary.
Therefore, as described later, it is not necessary to provide the projection member 72 with a blade body that cuts the warp thread 73 in particular, and providing the projection member 72 with an appropriate blade or blade body Since it leads to cutting the loop pile yarn 3, it should be avoided.

In the present invention, the used tile carpet 1 can be recycled to be reused as raw materials for the same or different products, thereby completing a substantial recycling system. Fibers made of raw material fibers that constitute the pile yarns that have been prepared by purifying the pile yarns separated from the used tile carpets that have only been used for burying treatment and that do not contain impurities and are purified to a predetermined length. In addition to being regenerated as a bundle, it is configured so that it can be processed and supplied in a form that is easy to use and easy to process in the reprocessing process of the fiber in a later step.
Therefore, the system of the present invention can be easily supplied to many processes for processing into a new product using the pile yarn constituting the carpet layer separated from the used tile carpet. Therefore, it is possible to easily and efficiently provide the required processing, so that the utility value and convenience for use are remarkably excellent, and the reproduction processing field can be expanded. This makes it possible to significantly expand the scope of application of the complete recycling system.

Hereinafter, a more specific example of the reproduction processing system in the present invention will be described in detail with reference to the drawings.
First, in the system according to the present invention, first, a used tile carpet 1 is prepared.
As shown in FIGS. 2 (A) and 2 (B), the used tile carpet 1 used in the present invention comprises a backing layer 2 mainly composed of a vinyl chloride synthetic resin, a synthetic fiber, A carpet layer 4 composed of three groups of pile yarns mainly composed of nylon fibers is laminated and joined, and the three groups of pile yarns are mainly composed of polyester synthetic fibers and the like. The base fabric 5 is temporarily fixed with an appropriate adhesive 6.

By the way, in general, the pile yarn 3 of the tile carpet 1 is mainly composed of nylon fibers, but some of them are polypropylene synthetic fibers, polyester synthetic fibers or other fibers. Some of them are constructed, or use a pile yarn obtained by blending nylon fibers and other synthetic fibers, or a pile yarn obtained by blending both.
On the other hand, many of the fiber products are made of nylon fiber as a raw material. Therefore, it is inevitable that many products using nylon fiber are found as products to be recycled.
Therefore, in the present invention, since it is necessary to expand the opportunity to execute a complete recycling system, the used tile carpet 1 used in the present invention is a pile yarn 3 composed only of nylon fibers. It is desirable to use a tile carpet that is used to form the carpet layer 4.
Therefore, in the present invention, before starting the recycling system according to the present invention, it is determined in advance whether or not the pile yarn 3 of the used tile carpet 1 to be put into the system is composed of only nylon fibers. When the tile carpet 1 in which the pile yarn 3 is composed of fibers other than nylon fibers and the pile yarn 3 is inspected and the yarn is mixed or blended with nylon fibers and fibers other than nylon fibers, particularly polypropylene fibers. It is desirable to exclude the tile carpet or all associated lots from the system of the present invention.

In the used tile carpet regeneration processing method according to the present invention, basically, the used tile carpet 1 whose use has been determined is shown in FIGS. 3 (A) and 3 (B). The tile carpet 1 has first and second gripping functions for each of the edge portions 7 and 8 positioned opposite to each other along the direction P in which the loop pile yarns 3 are arranged. The gripping means 21 and the second gripping means 21 ′ are firmly held and fixed.
Next, in the present invention, as shown in FIGS. 3C and 3D, a predetermined tension is applied to the tile carpet 1 by the first gripping means 21 and the second gripping means 21 ′. Are applied to the left and right directions using a suitable driving means so as to be separated from each other along the direction P in which the loop pile yarns 3 are arranged at a predetermined moving speed. .

By such an operation, the backing layer 2 and the base fabric layer 5 of the tile carpet 1 are sequentially and randomly broken at appropriate portions, exhibiting small piece shapes 9 and 10, and falling downward, A part of the broken piece 11 is held in the vicinity of the first gripping means 21 and the second gripping means 21 ′ in a state of being caught.
The small piece shapes 9 and 10 can be stored in an appropriate collection container 12 or the like installed below the drafting device, and the broken pieces 11 can be stored using appropriate means. It can be collected automatically or manually.
On the other hand, while the drafting operation is continued, the pile yarn 3 of the tile carpet 1 is successively applied from the backing layer 2 under a predetermined tension while the backing layer 2 is broken and separated. It is pulled out and takes the form of being stretched between the first and second gripping means 21 and 21 'as a substantially linear thread.

The tension applied to the pile yarn 3 by the drafting operation by the first and second gripping means 21 and 21 'in the present invention is not particularly limited, but at least the respective pile yarns It is desirable that the tension be such that at least a part of is not cut.
In the present invention, when the tile carpet 1 described above is stretched, if it is necessary to perform the stretching operation smoothly and at a lower tension, the backing layer 2 is preheated. It is also a preferable specific example that the vinyl chloride resin constituting the backing layer 2 is softened.
Therefore, the heating temperature is preferably higher than 160 degrees Celsius, which is the softening temperature of the vinyl chloride resin, and lower than 220 degrees Celsius, which is the softening point of the nylon fiber. In particular, if the heating temperature can be controlled to be higher than the softening point of the polypropylene fiber and lower than 220 degrees Celsius, which is the softening point of the nylon fiber, the polypropylene fiber is cut off during the drafting operation, so it is possible to easily determine whether the recycling is appropriate.

In the present invention, when the drafting operation is completed, the loop pile yarn 3 is a continuous fiber sheet made of continuous fibers of a finite length by the plurality of pile yarns separated from the tile carpet 1. Alternatively, a continuous fiber bundle is obtained.
In such a state, the length of the pile yarn 3 stretched between the first and second gripping means 21 and 21 ′ is about 7 m.

Here, the configuration of a specific example of the used tile carpet regeneration processing apparatus 36 directly used in the used tile carpet regeneration processing method according to the present invention will be described in detail with reference to FIGS.
That is, FIG. 1 also shows the outline of the configuration, but as described above, the basic technical configuration of the used tile carpet regeneration processing device 36 in the present invention is described in Japanese Patent No. 4357939 (patent Reference 9) is based on the configuration disclosed in FIG. 9, and the details are as shown in FIG. 4. The both ends of the used tile carpet 1 are respectively paired with upper and lower pressure gripping means. It is fixed and held by two sets of pressure-type gripping means 21 and 21 'composed of 21 and is fixedly held between the two sets of pressure-type gripping means (first and second gripping means) 21 and 21'. A substantially straight pressing bar 70 or a curved shape having an appropriate shape arranged in a direction orthogonal to the arrangement direction P of the pile yarns 3 of the tile carpet 1 at a substantially central portion of the tile carpet 1 being Have While pressing the pressing rod 70 and lowering it downward in the direction orthogonal to the surface of the tile carpet 1 or raising it upward, the used tile carpet 1 is stretched while the carpet is being stretched. A drafting means 151 configured to separate the layer 4 and the backing layer 2 and to stretch the pile yarn 3 linearly is used.

  Next, a specific example of the drafting / separating means 36 in the present invention will be described in detail with reference to FIGS. 4 (A) and 4 (B). As shown, one first gripping means 21 that mechanically grips one end 8 of the tile carpet 1 and the other second gripper that mechanically grips the other end 7 of the carpet 1. The tile carpet 1 is gripped by the gripping means 21 ′, and the tile carpet 1 extended between the pair of first and second gripping means 21, 21 ′ is moved up and down by an appropriate driving means. As shown in FIG. 4 (B), the tile carpet 1 is pushed downward as shown in FIG. 4B by the pressing member 70, and the tile carpet 1 is expanded in a folded shape. The pile yarn 3 The backing layer 2 and the base fabric layer 5 are stretched in the patch direction P, and at the same time, the loop pile yarn 3 constituting the carpet layer 4 is stretched so that the loop is eliminated and separated from the base fabric layer 5. The configuration is made to let you.

That is, FIG. 4 (A) shows a wedge-shaped or ridge formed with a sharp tip as a pressing member 70 that can move up and down between the one first gripping means 21 and the other second gripping means 21 '. A member having a protruding portion is used, and the cross-sectional view of the pressing member 70 is not shown, but may be a prismatic rod 71 having a prismatic cross-sectional shape, for example. Or the cylindrical body 71 which has circular cross-sectional shape may be sufficient.
In this specific example, as shown in FIG. 4B, the pressing member 70 is extended between the pair of first and second gripping means 21 and 21 ′ by using appropriate driving means. By moving the tile carpet 1 downward while pressing (or raising it upward), by applying a predetermined tension to the carpet 1 and extending it to fold in a V shape or U shape. The tile carpet 1 is stretched in the stitch direction to break the backing layer 2 and the base fabric layer 5, and at the same time, the loop pile yarn 3 constituting the carpet layer 4 is eliminated as a substantially straight yarn. Separated.

  The basic technical configuration of the used tile carpet regeneration processing method or apparatus 100 in the present invention described above is as described above. As already described, if the technical configuration itself is as described above, Since many problems as described above occur, a further characteristic technical configuration of the present invention is that the tile carpet 1 is processed in the drafting process described above in the present invention. A relatively low tension is applied to at least a part of the multiple warp groups 73 included in the base fabric layer 5 constituting the warp group (for example, the warp group 73 existing within an interval of 5 cm in width). After repeating the operation of cutting a plurality of times, all the loop pile yarns 3 are separated from the backing layer 2 and the base fabric layer 5 by applying a relatively low tension. To have.

The technical configuration of the present invention will be described in more detail. The technical configuration of the present invention is characterized by a tufted type tile carpet having the loop pile yarn 3 having the above-described configuration and mechanism. In the apparatus 100 for separating and recovering each constituent material 1, the pressing member 70 is constituted by a rotatable cylindrical body 71, and a plurality of protruding members 72 are arranged on the outer surface 76 of the cylindrical body 71, When the pressing member 72 presses the tile carpet 1, the projecting member 72 is configured to partially cut 75 a part of the warp 73 constituting the base fabric layer 5.
By the way, it is desirable that the projection member 72 used in the present invention is made of a material such as a metal material or a synthetic resin material, and the cough projection member 72 has a predetermined area. It is a preferable specific example that it has a planar shape and is distributed and arranged at appropriate portions of the outer peripheral surface 76 of the cylindrical body 71.
That is, as shown in FIG. 5, the projecting member 72 is not particularly limited in its planar shape, but has a shape such as a rectangle, a circle, or an ellipse, for example. The length L in the longitudinal direction, which is a direction parallel to the rotation axis direction of the cylindrical body 71, is not particularly limited in any width W in the direction perpendicular to the rotation axis direction of the projection member 72. However, it is preferable that at least the length L in the longitudinal direction is set to be longer than the width W, but there is no limitation as long as it has a circular shape.
The length L in the longitudinal direction is preferably shorter than the length of 500 mm on one side of the used tile carpet 1 to be processed. As a specific example, the length L can be set to 50 mm, for example. In that case, the width W of the projection member 72 can be set to about 10 to 30 mm.
The length L of the projecting member 72 is desirably determined by how many times the tile carpet I is to be subjected to the scissor cutting process, as will be described later.
Further, the height of the projecting member 72 is not particularly limited, but is desirably set to be at least higher than the thickness of the tile carpet 1 to be recycled, for example, set to 20 to 50 mm. It may be.
On the other hand, the outer surface portion 78 of the projecting member 72 that comes into contact with the tile carpet 1 comes into contact with at least a partial region 77 of the base fabric layer 5 and locally presses the regional portion 77. Therefore, the cross-sectional shape of the projection member 72 viewed from the direction of the rotation axis of the cylindrical body 71 is at least as shown in FIG. It is desirable that the outer surface portion 78 that comes into contact with the tile carpet 1 to be formed has a curved shape, a mountain shape, a flat shape, or a trapezoidal shape.
The projecting member 72 may have a shape such as a polygonal pyramid shape, a conical shape, and a truncated cone (conical frustum).
Further, as shown in FIG. 5C, the protruding member 72 according to the present invention extends from the outer surface portion 78 of the protruding member 72 to both ends 80 and 81 in the longitudinal direction of the protruding member 72. It is also a preferable specific example that the collar part 82 discharged upward is provided.
The hook portion 82 does not have a function as a blade for cutting the backing layer 2 or the base fabric layer 5. The loop pile yarn 3 of the carpet layer 4 is simply placed within a predetermined width. If the function as a blade is given to the collar portion 82, the loop pile yarn 3 is cut during the drafting operation. Therefore, it is not preferable.
On the other hand, in the present invention, each of the projecting members 72 is formed and arranged integrally with the cylindrical body 71 on the surface 76 of the cylindrical body 71, or an appropriate joining means such as an adhesive, It is disposed in contact with the surface 76 of the cylindrical body 71 via welding means, bolts, screws and the like.
That is, the outer surface portion 78 that contacts the tile carpet 1 of the projecting member 72 according to the present invention is in contact with at least a part of the region portion 77 of the base fabric layer 5, and locally the region portion 77. It has a function of pressing, whereby a part of the warp 73 in the arrangement direction of at least a part of the region 77 of the base fabric layer 5 is cut in advance under a small tension, It is possible to give the warp yarn 73 a configuration that facilitates the cutting.
Next, in the used tile carpet regeneration processing method or apparatus 100 according to the present invention, the warp yarn 73 of the base fabric layer 5 is rotated in the width direction of the tile carpet 1, that is, the cylindrical body 71 is rotated. Not all warp yarns 73 in the vicinity of a specific weft 74 along the axial direction are cut at a time, but are divided into a plurality of processes and partially arranged in each part. The warp yarns 73 are sequentially and intermittently cut, and finally, the warp yarns 73 of the tile carpet 1 are finally cut in advance.
Therefore, in the present invention, each of the plurality of projecting members 72 is placed on the outer peripheral surface portion 76 of the cylindrical body 71 so as to abut against different portions of the base fabric layer 5. It is characterized by being distributed.
Specifically, as shown in FIG. 7 and FIG. 8, a plurality of the projecting members 72 formed with appropriate dimensions on the outer surface 76 of the cylindrical body 71 as the pressing member 70. Are arranged such that their sequence sites are different from each other.
Specifically, when each of the protruding members 72 has a longitudinal length L set to 50 mm, the length of the tile carpet 1 is 500 mm, so that ten protruding members 72 are prepared and the cylinder Each time the body 71 is rotated by a predetermined angle, it comes into contact with the warp yarn 73 within the region 77 different from each other in the vicinity of the predetermined weft 74 in the base fabric layer 5 of the tile carpet 1. In the specific example of FIG. 7, first, the two projecting members 72 (first projecting member 72-1 and second projecting member 72-2) are configured. However, in the base fabric layer 5 of the tile carpet 1, the specific region having a width of about 100 mm in the substantially central portion is arranged so that the wefts 74 in a predetermined part simultaneously contact the common specific region 75. And the second And the fourth projecting member 72 (72-3 and 72-4) are the third and fourth projecting members 72 on both sides of the first and second projecting members 72-1 and 72-2. The longitudinal center axis 202 of (72-3 and 72-4) is shifted from the longitudinal center axis 201 of the first and second projecting members 72-1 and 72-2 by a predetermined distance. .
Next, the fifth and sixth projecting members 72 (72-5 and 72-6) are located outside the third and fourth projecting members 72-3 and 72-4, respectively. And the longitudinal central axis 203 of the sixth projecting member 72 (72-5 and 72-6) is the same as the longitudinal central axis 202 of the third and fourth projecting members 72-3 and 72-4. They are arranged at a distance.
Further, similarly, the seventh and eighth projecting members 72 (72-7 and 72-8) are arranged outside the fifth and sixth projecting members 72-5 and 72-6, respectively. The longitudinal center axis 204 of the seventh and eighth projecting members 72 (72-7 and 72-8) is the longitudinal center axis of the fifth and sixth projecting members 72-5 and 72-6. 203. The last ninth and tenth projecting members 72 (72-9 and 72-10) are not shown in the drawing, but the seventh and tenth are not shown. The longitudinal center axis 205 of the ninth and tenth projecting members 72 (72-9 and 72-10) is outside the respective eight projecting members 72-7 and 72-8. The eight projecting members 72-7 and 72-8 are displaced from the longitudinal central axis 204 by a predetermined distance. There.
In this specific example, the length of the center axis in the longitudinal direction of each set of the projection members 72 is shifted from each other, and the magnitude of the shift is arbitrary, but at least the mutual projection members 72 adjacent to each other It is desirable to set the length so that the longitudinal edges corresponding to each other do not overlap, and as shown in FIG. In order to configure to move to a predetermined part, for example, it is desirable to arrange the cylindrical body 71 at equal intervals at the outer surface position 76 of the cylindrical body 71 where the rotation angle is 60 degrees.
The cylindrical body 71 is configured to rise or fall intermittently via appropriate lifting and lowering means and rotating means, and to rotate by a predetermined angle each time the vertical movement is made.
That is, in the present invention, every time the cylindrical body 71 rotates intermittently at a predetermined angle, a different projection member 71 is arranged on the top of the pressing member 70, and the newly arranged projection is arranged. The member 72 comes into contact with different region portions 77 of the base fabric layer 5 and cuts the warp yarns 73 included in the region portion 77 or processes the warp yarns 73 so that the cutting can be easily performed in a later process. To do.
According to the experiment, out of the warp yarns 72 in contact with the projection member 71 in the region 77, the warp yarn 73 located at one edge portion or the vicinity 75 of both edge portions of the projection member 71 in the longitudinal direction. It has been confirmed that the part is well cut.
In the present invention, the specific weft 74 corresponds to a plurality of wefts of the base fabric layer 5 of the tile carpet 1 in contact with the apex of the cylindrical body 71.
As described above, the used tile carpet regeneration processing method or apparatus configuration according to the present invention is such that the cylindrical body 71 is disposed between the first gripping means 21 and the second gripping means 21 ′. While performing the ascending motion or the descending motion to press the tile carpet 1 that is fixed and held, the tile carpet 1 is configured to rotate intermittently at a predetermined angle, and the plurality. Each of the projecting members 72 has a portion of the projecting member 72 of the plurality of projecting members 72 that is part of the region 77 of the base fabric layer 5 by one intermittent rotation of the cylindrical body 72. It is comprised so that it may contact | abut.
Then, by the other intermittent rotation of the cylindrical body 72, the other projection member 72 of the plurality of projection members 72 comes into contact with the other region 77 of the base fabric layer 5. It is composed.
The details of the used tile carpet regeneration processing method and the operation of the used tile carpet regeneration processing apparatus 100 in the present invention will be described with reference to FIG.
That is, as a basic operation of the used tile carpet regeneration processing method and the used tile carpet regeneration processing apparatus 100 in the present invention, the cylindrical body 71 is connected to the first gripping means 21 and the While performing an ascending motion or a descending motion to press the tile carpet 1 fixedly gripped between the second gripping means 21 ', it rotates intermittently at a predetermined angle. And each of the plurality of projecting members 72 is individually connected to different region portions 77 of the base fabric layer 5 in time series in response to the rotational movement of the rotating body 71. More specifically, the cylindrical body 71 is configured such that the ascending motion or the descending motion of the cylindrical body 71 is intermittently performed. Between 71 In response to the partial ascending motion or the descending motion, the cylindrical body 71 is configured such that one intermittent rotational motion is executed.
That is, as shown in FIG. 9A, in the first step 0 (S0), below the tile carpet 1 fixedly held between the first holding means 21 and the second holding means 21 ′. In step 1 (S1), in order to press the tile carpet 1, the cylinder body 71 is raised by about 25 cm to 30 cm, and the cylinder body 71 is moved to a substantially central portion of the tile carpet 1. Press strongly.
In this step S1, the first and second projecting members 71-1 and 72-2 are fixed and arranged at the apex portion of the cylindrical body 71. Therefore, the cylinder The body 71 rises without rotating at a predetermined angle, and strongly presses the first region portion 77-1 of the base fabric layer 5, and as a result, as shown in FIG. 9B. The longitudinal edge of one or both of the first and second projecting members 71-1 and 72-2 in the first region 77-1 of the base fabric layer 5 The warp 73 located in the vicinity 75 of the edge is cut.
At this time, the tension applied to the cylindrical body 71 is about 200 kg.
Such tension is about one tenth of the applied tension used in similar conventional systems.
Next, in step 2 (S2), the cylindrical body 71 is rotated about 60 cm while being raised about 10 cm to 30 cm from the position of step S1, and the third and fourth projection members 72-3 72-4 is arranged at the apex of the cylindrical body 71.
By this operation, the third and fourth projecting members 72-3 and 72-4 of the cylindrical body 71 cause the second region portion 77-2 and the third region portion 77- of the base fabric layer 5 to move. 3 is pressed strongly, whereby one of the longitudinal edges of the third and fourth projecting members 71-3 and 72-4 in the respective region portions 77-2 and 77-3 or The warp 73 located in the vicinity 75 of both longitudinal edges is cut.
The applied tension at this time is about 200 kg, similar to the above.
Similarly, in step 3 (S3), the cylindrical body 71 rises by about 10 cm to 30 cm from the position of step S2, and further rotates 60 degrees in the same direction, so that the fifth and sixth projection members are concerned. 72-5 and 72-6 are arranged at the apex of the cylindrical body 71.
By this operation, the fifth and sixth projecting members 72-5 and 72-6 of the cylindrical body 71 cause the fourth region portion 77-4 and the fifth region portion 77- of the base fabric layer 5 to move. 5 is pressed strongly, whereby one of the longitudinal edges of the fifth and sixth projecting members 71-5 and 72-6 in each of the region portions 77-5 and 77-6 or The warp 73 located in the vicinity 75 of both longitudinal edges is cut.
The applied tension at this time is about 200 kg, similar to the above.
When such an operation is repeated to reach step 5 (S5), the warp 73 of the base fabric layer 5 is almost cut in the width direction of the tile carpet 1 or has been changed to a configuration that is easy to cut. Thereafter, in the final step (SL), the loop body yarn 71 contained in the tile carpet 1 is slightly tensioned, for example, about 200 kg, by raising the cylindrical body 71 to 5 m to 7 m at a stretch. It is possible to easily separate from the backing layer 2 and the base fabric layer 5 completely in a short time with the tension of.
It should be noted that the time required for each operation in each of the above steps in the present invention is preferably set within several seconds.
Therefore, the used tile carpet regeneration processing apparatus 100 according to the present invention can be reduced in size and weight, so that the manufacturing cost can be significantly reduced along with the reduction in energy consumption. is there.
As described above, the basic configuration of the used tile carpet regeneration processing apparatus 100 according to the present invention is as follows.
That is, a tile carpet 1 consisting of at least a carpet layer 4 made of loop pile yarn 3, a base fabric layer 5 and a backing layer 2 is stretched in the stitch direction P of the loop pile yarn 3, and the backing layer 2 and the backing fabric layer 5 by breaking the loop pile yarn 3 constituting the carpet layer 4 from the base fabric layer 5 or the backing layer 2 while stretching the loop pile yarn 3 constituting the carpet layer 4 so as to eliminate the loop. A device 100 for individually separating the yarn 3 from the base fabric layer 5 or the backing layer 2, and first gripping means for mechanically gripping the tile carpet 1 at one end of the tile carpet 1. 21 and second gripping means 21 ′ for mechanically gripping the other end of the tile carpet, and the first gripping means 21 and the second gripping means 21 ′. The tile carpet 1 held between the two holding means 21 'is pressed, the tile carpet 1 is stretched in the stitching direction P and the backing layer 2 and a part of the base fabric layer 5 are broken at the same time. The used tile carpet 1 is composed of a pressing member 70 that can move up and down and has a function of separating the loop pile yarn 3 constituting the carpet layer 4 from the base fabric layer 5 by stretching the loop pile yarn 3 so as to eliminate the loop. In the apparatus 100 for separating and recovering each constituent material, the pressing member 70 is constituted by a rotatable cylindrical body 71, and a plurality of protruding members 72 are arranged on the outer surface of the cylindrical body 71, thereby the pressing member. When 70 presses the tile carpet 1, the protruding member 72 is configured to partially cut a part of the warp 73 constituting the base fabric layer 5. Is.

1: Tile carpet 2: Backing layer 3: Pile yarn 4: Carpet layer 5: Base fabric 6: Adhesive 7, 8: Edges 9, 10: Piece shape 11: Fragment 14: Fragment of unseparated tile carpet End 21: first gripping means 21 ′: second gripping means 36: drafting / separating means 70: pressing member 100: used tile carpet regeneration processing device 151: drafting drive means 71: cylindrical body 72: Protruding member 73: Warp 74: Weft 75: Warp cutting part area 76: Cylindrical outer surface 77: Area where the base fabric layer contacts the protruding member 78: Protruding member outer surfaces 201-205: Center axis in the longitudinal direction of the protruding member 80, 81: Longitudinal ends 82 of the projecting members: collar

Claims (12)

At least the tile carpet composed of at least three layers of a loop pile yarn, a base fabric layer and a backing layer is stretched in the stitch direction of the loop pile yarn to partially break the backing layer and the base fabric layer. The loop pile yarn is separated from the base fabric layer or the backing layer by peeling the loop pile yarn constituting the layer from the base fabric layer or the backing layer while stretching the loop pile yarn so as to eliminate the loop. In this case, the tile carpet is gripped by the first gripping means that mechanically grips one end of the tile carpet and the second gripping means that mechanically grips the other end of the tile carpet. The tile carpet between the first gripping means and the second gripping means is pressed by a pressing member that moves up and down. The tile carpet is stretched in the stitch direction to break a part of the backing layer and the base fabric layer, and at the same time, the loop pile yarn constituting the carpet layer is stretched so that the loop is eliminated from the base fabric layer. In a method for separating and collecting each constituent material of a tufted type tile carpet having a loop pile yarn configured to be separated, the pressing member is constituted by a rotatable cylindrical body, A plurality of projecting members are arranged on the outer surface, and when the pressing member presses the tile carpet, the projecting member forms the base fabric layer, and the arrangement direction of the pile yarns of the tile carpet 1 of used carpet tile, characterized in that it constitutes a part of the warp yarns are yarns that are arranged in the same direction so as to partially cut Raw processing method.   The projecting member has a planar shape made of a material such as a metal material or a synthetic resin material and has a predetermined area, and is disposed in an appropriate position on the outer peripheral surface of the cylindrical body. The used tile carpet regeneration processing method according to claim 1, wherein the used tile carpet is recycled.   Each of the projecting members is formed and disposed integrally with the cylindrical body on the surface of the cylindrical body, or is disposed in contact with the surface of the cylindrical body via an appropriate joining means. The method for reclaiming used tile carpet according to claim 1 or 2, characterized in that:   The outer surface portion of the projecting member that comes into contact with the tile carpet has a function of contacting at least a part of the region of the base fabric layer and locally pressing the region. A method for recycling a used tile carpet according to any one of claims 1 to 3. The length in the longitudinal direction parallel to the rotational axis of the cylindrical body in the planar shape of the projecting member is set shorter than the length in the longitudinal direction parallel to the rotational axis of the cylindrical body of the tile carpet, and The length in the direction perpendicular to the rotation axis of the cylindrical body in the planar shape of the protruding member is
The used tile carpet regeneration processing method according to any one of claims 1 to 4, wherein the tile carpet is set to be shorter than a length in a direction orthogonal to a rotation axis of the cylindrical body of the tile carpet.   The recycled tile carpet according to any one of claims 1 to 5, wherein a height of the protruding member is set to be at least higher than a thickness of the tile carpet to be recycled. Processing method.   The cross-sectional shape of the projection member viewed from the direction of the rotation axis of the cylindrical body is such that at least the outer surface portion where the projection member abuts on the tile carpet to be recycled is curved, mountain-shaped, flat, trapezoidal The used tile carpet regeneration processing method according to any one of claims 1 to 6, wherein:   8. Each of the plurality of projecting members is disposed on the cylindrical body so as to be in contact with different portions of the base fabric layer, respectively. Recycling method of used tile carpet.   While the cylindrical body performs an ascending motion or a descending motion to press the tile carpet fixedly gripped between the first gripping means and the second gripping means, a predetermined predetermined value is used. And each of the plurality of projecting members is formed by intermittently rotating the cylindrical body so that a part of the projecting members of the plurality of projecting members is rotated. The used tile carpet regeneration processing method according to any one of claims 1 to 8, wherein the member is configured to come into contact with a partial region of the base fabric layer. While the cylindrical body performs an ascending motion or a descending motion to press the tile carpet fixedly gripped between the first gripping means and the second gripping means, a predetermined predetermined value is used. And each of the plurality of projecting members is chronologically connected to the base fabric layer in response to the rotational movement of the cylindrical body. The used tile carpet regeneration processing method according to any one of claims 1 to 8, wherein the tile carpet is configured to abut against different area portions individually.   The ascending or descending movement of the cylinder is configured to be executed intermittently. In response to the intermittent ascending or descending movement of the cylinder, the cylinder is The used tile carpet regeneration processing method according to claim 9 or 10, wherein the intermittent rotation motion is performed. At least the tile carpet composed of at least three layers of a loop pile yarn, a base fabric layer and a backing layer is stretched in the stitch direction of the loop pile yarn to partially break the backing layer and the base fabric layer. The loop pile yarn is separated from the base fabric layer or the backing layer by peeling the loop pile yarn constituting the layer from the base fabric layer or the backing layer while stretching the loop pile yarn so as to eliminate the loop. A first gripping means for mechanically gripping one end of the tile carpet and a second gripping means for mechanically gripping the other end of the tile carpet. And press the tile carpet gripped between the first gripping means and the second gripping means, The tile carpet is stretched in the stitch direction to break the backing layer and a part of the base fabric layer, and at the same time, the loop pile yarn constituting the carpet layer is stretched so that the loop is eliminated and separated from the base fabric layer. An apparatus for separating and recovering each constituent material of a used tile carpet composed of a vertically movable pressing member having a function of causing the pressing member to be constituted by a rotatable cylindrical body, A plurality of projecting members are arranged on the outer surface, and when the pressing member presses the tile carpet, the projecting member forms the base fabric layer, and the arrangement direction of the pile yarns of the tile carpet 1 some of the warp yarns are yarns that are arranged in the same direction, re of used carpet tile, characterized in that constructed as to partially cut Processing apparatus.

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