JP4357939B2 - Carpet recycling method, method for separating and recovering each constituent material of carpet, and apparatus therefor - Google Patents

Description

  In the present invention, prior to crushing the carpet from a carpet composed of at least three layers of a loop pile yarn, a carpet layer and a backing layer, the loop pile yarn, the fabric layer and the backing layer constituting the carpet layer are provided. The present invention relates to a carpet recycling method configured to separate and collect layers individually, a method of separating and recovering the above-described constituent materials of tufted type carpet, and an apparatus therefor.

  Ten years have passed since tile carpets were widely used, and the time has come for renewal. On the other hand, the disposal of waste has become difficult year by year, especially when vinyl chloride resin-based products are accompanied by the problem of dioxin generation when burned, making it even more difficult to dispose of them. Use has become a social issue. In the United States, the carpet layer on the surface is washed and dyed again to give a pattern and reused. However, it is difficult to remove the dirt on the carpet layer once dirty, and the color of the dyeing is inevitably dark. The fact is that it is limited to.

  As a technique for reusing tile carpets, for example, there are techniques described in Patent Documents 1 and 2. In these techniques, a surface decorative resin layer is formed on the front surface or the back surface of the waste material obtained by substantially cutting and removing the carpet layer.

  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, the cost increases.

  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.

  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.

  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, it was assumed that the nylon fibers were removed and discarded or incinerated, and the idea was that they would be removed from the tile carpet even if they were cut or pulverized. However, these methods do not completely remove the crushed 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 recovering and reusing the vinyl chloride backing layer efficiently, the carpet layer and the base fabric layer with the vinyl chloride compound stuck together are integrated, except for the vinyl chloride backing layer. In order to reuse the layer, it was necessary to separate and recover the carpet fibers.

  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 the literature 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.

JP 2000-220281 A JP 2000-220282 A Japanese Utility Model Publication No.59-132581 Japanese Utility Model Publication No.59-132582, page 1 JP-A-8-312117, page 2, paragraph 0005 JP-A-9-173197, page 3, paragraph 0018 Japanese Patent Application No. 2002-320421 (unpublished)

  Accordingly, an object of the present invention is to solve the above-described conventional problems, and does not require a large amount of energy, generates less noise and dust, and is a general tufted type pile carpet including a tile carpet. Provided is a method and an apparatus for efficiently separating and recovering a backing layer made of a vinyl chloride compound or the like having a low mixing of fibers and fiber waste from the carpet prior to crushing the carpet, and in particular, a production process. A method and apparatus for separating and recovering a backing layer made of a vinyl chloride compound, etc., in which the fiber and fiber waste of the carpet layer from the ear burr, which is unavoidable, are crushed, are crushed. It is.

  In order to achieve the above-described object, the present invention basically employs a configuration as described below.

  That is, as a first aspect of the present invention, at least a carpet layer composed of a loop pile yarn, a base fabric layer, and a backing layer are extended in the stitch direction of the loop pile yarn to stretch the backing layer. A carpet layer is formed by breaking a part of the base fabric layer and separating the loop pile yarn constituting the carpet layer from the base fabric layer while stretching the loop pile yarn so that the loop is released and separating the loop pile yarn from the backing layer. The loop pile yarn, the base fabric layer, and the backing layer constituting the carpet are separated separately prior to crushing the carpet, and each of the constituent materials of the carpet is separated and recovered. As an aspect, a first gripping means for mechanically gripping one end of the carpet and stitching of the loop pile yarn from one end of the carpet Is located at a position moved inward in the carpet body by a predetermined distance and mechanically grips one part of the carpet or is disposed at the other end position of the carpet and A second gripping means for mechanically gripping, and at least the first gripping means stretches the carpet in the stitch direction of the loop pile yarn to break part of the backing layer and the base fabric layer. At the same time, a function of separating the loop pile yarn constituting the carpet layer from the base fabric layer while being stretched so as to eliminate the loop is provided, and the first grip means grips one end of the carpet. And the second gripping means grips the other end of the carpet or one part other than the end, and then drives at least the first gripping means to drive the carpet. The constituent material of the constructed carpet so as to individually separate the backing layer and the loop pile yarn and the base fabric layer of the coat layer is a method for separating and recovering.

  Furthermore, as a third aspect of the present invention, a first grip for mechanically gripping one end of a carpet composed of at least three layers of a carpet layer made of loop pile yarn, a base fabric layer, and a backing layer. And mechanically gripping a part of the carpet disposed at a position moved in a direction of a predetermined distance in the stitch direction of the loop pile yarn from one end of the carpet, or A second gripping means for mechanically gripping the other end of the carpet located at the other end of the carpet, and at least the first gripping means stretches the carpet in the stitch direction of the loop pile yarn. From the base fabric layer, the loop pile yarn constituting the carpet layer is stretched so as to eliminate the loops while breaking the backing layer and a part of the base fabric layer. A device for separating and collecting each constituent material of a tufted type carpet having a loop pile yarn provided with a function to be separated and provided with a driving means for exerting the function on the first gripping means. .

Since the present invention basically employs the technical configuration as described above, the following operational effects can be exhibited.
(1) Since each constituent layer is individually separated prior to crushing the carpet, the separated backing layer contains little carpet fiber waste and is extremely high in purity as a backing layer material. Therefore, it is extremely useful for remelting and reusing it as a raw material for carpets and other flooring materials.
(2) When vinyl chloride resin is used for the backing layer, the fiber of the separated loop pile yarn contains about 50% vinyl chloride. It can be disposed of at a waste disposal site, and it is reduced to 1/3 by weight compared to the untreated carpet, and the content of the vinyl chloride backing layer was 87% before the collected treatment. Since it has changed to 50% later, waste is greatly reduced.
(3) For example, in the above case, vinyl chloride particles adhering to the separated fibers can be separated by rubbing or rubbing the fibers, so that fibers with higher purity are obtained. It can also be used as a fiber, for example, nylon itself.

  The separation and recovery method of the present invention generates less noise and dust and consumes less energy than the conventional method. Furthermore, since the present invention does not require the pulverization step and the mowing step essential for the conventional separation and recovery methods of Patent Documents 1 to 5, there is no generation of carpet fiber waste and other dust, and the work environment and workers The health is very good.

  Hereinafter, an example of a configuration according to a specific embodiment of the present invention will be described in detail with reference to the drawings.

  That is, FIG. 1 is a diagram showing an example of the configuration of a specific example of the first aspect according to the present invention. In the figure, a carpet layer 10 comprising at least a loop pile yarn 11, a base fabric layer 12, and a backing layer 13 are shown. The three-layer carpet 1 is stretched in the stitch direction of the loop pile yarn 11 to break a part of the backing layer 13 and the base fabric layer 12, and at the same time, the loop pile yarn 11 constituting the carpet layer 10 is The loop pile yarn 11, the base fabric layer 12, and the backing layer 13 constituting the carpet layer 10 are individually separated by separating from the base fabric layer 12 while being stretched so as to eliminate the loop and by separating from the backing layer 13. A method for separating and recovering each constituent material of a tufted type carpet 1 having a loop pile yarn 11 characterized by being separated is shown.

  The second aspect of the present invention, which is a more specific example of the above aspect, includes a first gripping means 21 for mechanically gripping one end 23 of the carpet 1 and the carpet 1. A part of the carpet is mechanically grasped or the carpet 1 is arranged at a position 24 moved in the stitching direction of the loop pile yarn 11 from one end 23 by a predetermined distance toward the inside of the carpet body. And a second gripping means 22 for mechanically gripping the end 24 of the carpet, and at least the first gripping means 21 with the carpet 1 in the loop. The carpet layer 10 is formed at the same time that the backing layer 13 and the base fabric layer 12 are partially broken 26 and 27 by stretching in the stitch direction of the pile yarn 11 (the direction of the arrow 25 in FIG. 1B). A function of separating the loop pile yarn 11 from the base fabric layer 12 while stretching the loop pile yarn 11 so as to eliminate the loop, and causing the first gripping means 21 to grip one end 23 of the carpet 1. After the second gripping means grips the other end 24 ′ of the carpet or the first part 24 other than the end, at least the first gripping means 21 is driven to form the carpet layer 1. The loop pile yarn 11, the base fabric layer 12, and the backing layer 13 are configured to be individually separated.

  That is, in this specific example, at least one of the first gripping means 21 and the second gripping means 22 has, for example, a structure for fixing and gripping at least a part of the carpet. As shown in FIG. 2, at least one or both of the first and second gripping means 21 and 22 are composed of a pair of base portions 21 and 21 'facing each other, and facing each other. A plurality of locking members made of at least one kind selected from a projecting portion, a needle-like portion, a protruding portion, a hook-like portion, a groove-like portion, etc. on each of the pair of surfaces 21-1 and 21'-1 5 may be formed, or a sword mountain shape may be sufficient.

  In the present invention, at least the first gripping means 21 is configured to move from the second gripping means 22 in a direction away from the stitching direction 25 of the loop pile yarn 11. Preferably, the first gripping means 21 uses an appropriate sliding mechanism and moves while applying a sufficient load to the carpet 1 to break part of the backing layer 13 and the base fabric layer 12. It is configured to do.

  The relative separation speed of the two gripping means or the pulling speed of the carpet is preferably 200 mm / min or more.

  The second gripping means 22 may be fixed, and may be configured to move in a direction opposite to the first gripping means 21 if necessary.

  In the present invention, it is preferable that appropriate driving means 50 and 51 are provided for sliding the first and second gripping means 21 and 22, and further, the first and second holding means 21 and 22 are provided. There are provided control means 60 and 61 for controlling the pressing force of the gripping means 21 and 22 or switching operation of the first and second gripping means 21 and 22 between the gripping state and the releasing state of the carpet 1. It is also preferred that

  The first and second gripping means 21, 22 may have an axial length somewhat longer than the width of the carpet 1 to be processed, and the carpet to be processed. It may have a length in the axial direction divided into a plurality of widths for one width.

  In the present invention, the carpet 1 is a loop pile yarn 11 used for the carpet layer 10, for example, a nonwoven fabric is used as the base fabric layer 12, and a synthetic resin material such as vinyl chloride is used for the backing layer 13. The carpet may be a long carpet, or may be a tile carpet cut to a specific size and shape.

  Furthermore, the carpet 1 according to the present invention may be a vertical ear burr 15 generated during the manufacture of the carpet body.

  In other words, in the present invention, two portions of the carpet 1 that are arranged at predetermined intervals in the stitch direction of the loop pile yarn 11 are mechanically fixed, and the carpet 1 The carpet 1 is pulled with the loop pile yarn 11 of the carpet layer 10 by pulling out the loop pile yarn 11 of the carpet layer 10 by stretching the yarn in the stitch direction of the loop pile yarn 11 and tearing the yarn in the longitudinal direction of the base fabric layer 12. It is separated into three layers, a base fabric layer 12 and a backing layer 13.

  If the carpet 1 is a tile carpet, the above operation shown in FIG. 1 is repeated for each tile carpet 1, and if the carpet 1 is a long carpet, the above operation is performed, for example. When the operation is completed, the gripping of the carpet by the first gripping means 21 and the second gripping means 22 is released, and the first gripping means 21 is returned to the original position and at the same time the long carpet. Is moved by a predetermined length in the direction of the first gripping means 21, and then the above-mentioned operation is repeated after the predetermined portion of the carpet is gripped and fixed by the first and second gripping means.

  Therefore, in the present invention, at least one or both of the first and second gripping means are configured to take both the state of gripping the carpet and the state of releasing the carpet. It is desirable that

  Further, in the present invention, the loop pile yarn 11 and the backing layer 13 separated from the base fabric layer 12 generated from at least the vicinity of the second gripping means 22, the loop pile yarn 11 and the backing layer 13 are used. The separated base fabric layer 12 can be individually housed in the individual housing means 32 and 33 without using the appropriate take-up means 30 and 31.

  In this case, an appropriate guide member, a rotating guide roller, a suction type guide member, or the like can be used as the take-up means 30 and 31.

  The storage means 32 and 33 may be, for example, a drum, a can, a box, or a take-up roller.

  Similarly, in the present invention, the loop pile yarn 11 generated from the vicinity of the first gripping means 21 and the backing layer 13 separated from the base fabric layer 12 and the loop pile yarn 11 and the backing layer 13 are separated. The base fabric layer 12 can be individually housed in the individual housing means 35, 37 without using the appropriate take-up means 34, 36.

  Further, in the present invention, the loop pile yarn 11 separated from the backing layer 13 and the base fabric layer 12 of the carpet 1 is provided with an appropriate take-up means provided in the vicinity of the first holding means 21. Alternatively, the loop pile yarn storage means 39 may be accommodated with or without 38.

  Further, in the present invention, the loop pile yarn 11 separated as described above is separated from a part of the carpet 1 held by the first holding means and stored in the storage means 39, for example. Therefore, an appropriate cutter means 41 may be provided in the vicinity of the first gripping means 21, and in the vicinity of the second gripping means 22 in order to store the loop pile yarn 11 with an appropriate length. An appropriate cutter means 40 may be provided.

  On the other hand, in the present invention, in order to easily break the backing layer, a heating means 42 for heating at least the backing layer is provided between the first and second gripping means 21 and 22. It is also desirable that

  Here, the method for separating and collecting the constituent materials of the tufted type carpet having the loop pile yarn according to the present invention will be described in more detail with reference to a tile carpet as an example.

  The tile carpet 1 used as one specific example in the present invention has a structure consisting of at least three layers of a carpet layer 10, a base fabric layer 12, and a synthetic resin backing layer 13 made of, for example, vinyl chloride. It refers to a tufted type floor finishing material having pile yarns 11, and may be a construction end material generated as a by-product during construction, a collected used one, or an ear burr generated in a manufacturing process. In particular, the method of the present invention is effective for the treatment of vertical ear burrs among ear burrs that are generated in large quantities during the manufacture of tile carpets.

  The structure of the carpet backing layer 13 to which the present invention is applied is not particularly limited. In addition to vinyl chloride resin, synthetic resin such as polypropylene resin and polyurethane resin is used, and asphalt is used. It may be.

  Most of the used tile carpets 1 collected in the present invention are those in which the carpet layer (fiber layer) is nylon fiber, but those in polypropylene fiber and polyester fiber are also available. From the viewpoint of fiber reuse and processing, it is necessary to carry out a separate inspection for each collection lot at the stage before passing through the separation and recovery process, and to separate each fiber type. The method of separate inspection is generally a method of smoking and smelling smoke.

  As a method of mechanically fixing both ends in the stitch direction of the loop pile yarn 11 of the tile carpet 1 according to the present invention, a method in which the tile carpet is fixed by a pair of flat plates is also used. A pair of jigs facing each other are combined, and a method of fixing the tile carpet with this needle is also used effectively. In particular, the method using a pair of sword-shaped jigs is more preferably used because the added portion of the fiber is pulled out to the end without remaining. In this case, it is desirable that the length of the knives needle portion does not exceed the thickness of the backing layer made of a synthetic resin such as vinyl chloride of the tile carpet.

  In the present invention, separation and recovery are performed at room temperature, but separation becomes easier by heating and softening the backing layer 13 of the tile carpet. However, if the heating temperature exceeds 1800C, the vinyl chloride backing layer starts to decompose, which is not preferable.

  Examples of the method for heating the tile carpet 1 include a method of blowing hot air, a method of passing through a heating furnace, a method of passing an infrared heater, a method of passing over a hot plate, and a method of using ultrasonic heating. In the case of the collected used tile carpet, since the carpet side is dirty, a method of spraying steam for cleaning can also be adopted.

  The tufted type tile carpet has a loop pile yarn 11 driven into the base fabric 12 and the loop pile yarn 11 is folded into a pile shape, and is fixed so that the loop pile yarn 11 does not come off. Is only the condensing power of the backing layer 13 made of a synthetic resin such as vinyl chloride or the latex coating. Accordingly, if the base fabric 12 is stretched in the stitching direction of the tile carpet and then torn, the folded fiber, that is, the loop pile yarn 11 becomes free and is pulled out of the base fabric layer 12, and the base force is applied by the shearing force at this time. The cloth layer 12 and the backing layer 13 made of a synthetic resin such as vinyl chloride are also separated. The principle of this method can be confirmed by mechanically fixing one side of the tile carpet in the fiber traveling direction, heating the vinyl chloride backing layer, and then pulling the opposite end with a tool such as pliers. .

  Of course, the present invention is not limited to the tile carpet as described above, and it is also possible to use a normal wide and long carpet 1 (100).

  Next, the ear burr of the present invention will be described.

  As shown in FIG. 3, in order to increase the dimensional accuracy of the tile carpet 1, the tile carpet 1 is manufactured by once making a wide and long carpet in which the carpet layer 10 and the vinyl chloride backing layer 13 are bonded together. It is manufactured by punching with a punch 4 having the shape of the tile carpet 1. At that time, a gap portion between the shape of the tile carpet 1 and the shape of the tile carpet 1 is referred to as an ear burr. These are by-produced in large quantities when the tile carpet 1 is manufactured.

  In the present invention, the vertical ear burr 15 is an ear burr along the stitch direction of the loop pile yarn 11 of the tile carpet 1, and the horizontal ear burr 16 is an ear burr in a direction crossing the stitch direction of the tile carpet.

  FIG. 3 is a plan view showing how the vertical ear burrs 15 and the horizontal ear burrs 16 are by-produced in the manufacturing process of the tile carpet 1.

  That is, in the manufacture of the tile carpet 1, in order to increase the dimensional accuracy of the tile carpet, a wide and long sheet in which the carpet layer 10 and the vinyl chloride backing layer 13 are once bonded, that is, the wide and long carpet 1 (100) is manufactured. After that, it is manufactured by punching with a punch 4 having the shape of the tile carpet 1 shown in FIG. At that time, a gap portion between the shape of the tile carpet and the shape of the tile carpet is formed as a by-product as the vertical ear burr 15 and the horizontal ear burr 16.

  The present invention is particularly preferably used for separating and collecting the loop pile yarn 11, the base fabric layer 12, and the vinyl chloride backing layer 13 of the carpet layer 10 from the vertical ear burrs 15 occupying most of the ear burrs.

  For example, a part of the vinyl chloride backing layer 13 is adhered to the loop pile yarn 11 of the separated carpet layer 10 in the form of fine powder. The vinyl chloride backing layer 13 is caused by a shift between layers generated at the boundary surface. The loop pile yarn 11 that is separated, for example, by rubbing, squeezing, or hitting nylon fibers, is cooled to a temperature below the glass transition point of the vinyl chloride compound. If the vinyl chloride backing layer contained is further carefully separated, nylon fibers with higher purity can be obtained.

  A detailed embodiment of the above method will be described below.

Example 1
In FIG. 1, a tufted type recovered used tile carpet having a loop layer of nylon fiber consisting of a carpet layer, a base fabric layer, and a vinyl chloride backing layer (total thickness 6.5 mm, chloride) The thickness of the vinyl backing layer (3.0 mm, 500 mm square) is mechanically fixed at both ends in the stitch direction of the loop pile yarn 11 by the first and second gripping means 21 and 22 comprising a pair of sword-shaped fixing jigs. Then, the tile carpet 1 is stretched in the stitching direction of the loop pile yarn 11 with a force of 650 kgf at room temperature (25 ° C.) to tear the yarn in the longitudinal direction of the base fabric layer 12, thereby pulling out the loop pile yarn 11 of the carpet layer 10. Thus, the tile carpet 1 can be separated into three layers of a loop pile yarn 11 made of nylon fiber, a base fabric layer 12 and a vinyl chloride backing layer 13. It was. Nylon fiber 11 (25% by weight in which the vinyl chloride compound content was 50%) and base fabric layer 12 (10% by weight in which the vinyl chloride compound content was 80%); A vinyl chloride compound (65% by weight and no mixing of fiber waste) could be obtained. By hitting the obtained nylon fiber (vinyl chloride compound content 50%), a higher purity nylon fiber (vinyl chloride compound content 40%) was obtained.

  Since the fibers separated and recovered in the present invention, such as nylon fibers, are separated from other fibers in advance, they are used as crude nylon containing a very small amount of a vinyl chloride backing material, and are used as floor panels for OA floors, molds for placing concrete. It can be used as a plate material requiring strength such as a frame material.

  Next, the configuration of another specific example of the method for separating and collecting the constituent materials of the tufted type carpet having the loop pile yarn according to the present invention will be described in detail.

  In this specific example, a carpet composed of at least three layers of a carpet layer 10, a base fabric layer 12 and a backing layer 13 is mechanically fixed to at least one end in the stitch direction of the loop pile yarn 11 of the carpet with at least a pair of rolls. The carpet 1 is stretched in the stitch direction of the loop pile yarn 11 while holding the other end with at least a pair of rolls rotating at a rotational speed faster than the rotational speed of the roll, so that the longitudinal direction of the base fabric layer 12 is increased. The carpet 1 is separated into three layers of the loop pile yarn 11 of the carpet layer 10, the base fabric layer 12, and the backing layer 13 by pulling out the loop pile yarn 11 of the carpet layer 10 from the base fabric layer by tearing the yarn. This is a method for separating and recovering each constituent material of a carpet from a tufted type carpet having a loop pile layer.

  If this specific example is described in more detail, at least one of the first and second gripping means 21 and 22 in the specific example described above is constituted by a pair of pressure-type rotatable rollers, More specifically, both the first and second gripping means 21 and 22 are constituted by a pair of pressure-type rotatable rollers, and the pair of first pressure-type rotatable rollers as the first gripping means 21. One end portion 23 of the carpet 1 is gripped and fixed to 211, and the other end portion 24 ′ of the carpet 1 or the end portion is paired with a pair of second pressure-type rotatable rollers 221 as the second gripping means 22. After gripping and fixing the part 24 other than the at least one, the rotational speed of at least the first pressure-type rotatable roller 211 in the direction in which the carpet is stretched is greater than the rotational speed of the second pressure-type rotatable roller 221. At speed By rolling, the carpet 1 is stretched in the stitch direction of the loop pile yarn 11 to break a part of the backing layer 13 and the base fabric layer 12, and at the same time, the loop pile yarn 11 constituting the carpet layer 10 is The loop pile yarn, the base fabric layer, and the backing layer constituting the carpet layer are individually separated by separating from the base fabric layer 12 while being stretched so as to eliminate the loop. is there.

  That is, in this specific example, the first pressure-type rotatable roller 211 stretches the carpet in the stitch direction of the loop pile yarn to break a part of the backing layer and the base fabric layer, and at the same time constitutes the carpet layer. The loop pile yarn is configured to exhibit a function of separating from the base fabric layer while being stretched so that the loop is eliminated.

  In this example, the first and second pressure-type rotatable rollers 211 and 221 are both configured to be actively driven at a predetermined rotational speed, and at the same time necessary. It is desirable that the rotary drive is configured to be stopped.

  Furthermore, in this specific example, the first and second pressure-type rotatable rollers 211 and 221 both have an appropriate pressure so that the carpet 1 can be held and rotated or fixed with a predetermined pressure. Or a gap (gauge) between the opposing rollers of the pair of rollers 211, 211 ′ and 221, 221 ′ constituting the first and second pressure-type rotatable rollers 211, 221 can be freely adjusted. It is preferable that control means 60 and 61 for changing are also provided.

  In addition, as described above, in this specific example, the first pressure-type rotation that controls the rotation of the first pressure-type rotatable roller 211 at a predetermined rotation speed while adjusting the rotation speed of the first pressure-type rotatable roller 211. The second pressure-type rotatable roller driving means 51 that controls the rotation of the second pressure-type rotatable roller 221 at a predetermined rotational speed while adjusting the rotational speeds of the movable roller driving means 50 and the second pressure-type rotatable roller 221. The first pressure-type rotatable roller driving unit 50 and the second pressure-type rotatable roller driving unit 51 are appropriately adjusted and controlled to adjust the rotation speed of the first pressure-type rotatable roller 211. The separation operation described above can be realized by rotating at a speed higher than the rotation speed of the second pressure-type rotatable roller 221.

  This difference in rotational speed is preferably set so that the pulling speed of the carpet is 200 mm / min or more.

  It should be noted that the surface of each of the first and second pair of pressure-type rotatable rollers 211 and 221 in the present invention has a frictional force necessary to securely grasp and stretch the carpet. In addition, an appropriate gripping force can be realized by combining with the applied pressure applied between the pair of rollers.

  Further, the rotational speed or the rotational speed difference of each of the first and second pair of pressure-type rotatable rollers 211 and 221 is appropriately determined according to the configuration of the carpet.

  FIG. 5 is a view showing an example of a method for separating and recovering each constituent material of the tufted type carpet having the loop pile yarn of this specific example. In FIG. 5A, one end portion of the carpet 1 is shown. A pair of first pressure-type rotatable rollers 211 that are first gripping means 21 for mechanically gripping the belt 23 and one end 23 of the carpet 1 by a predetermined distance in the stitch direction of the loop pile yarn 11 Placed in a position 24 moved inwardly into the carpet body to mechanically grip one part of the carpet or machine the other end 24 'of the carpet at the other end position 24' of the carpet 1 And a pair of second pressure-type rotatable rollers 221 which are second gripping means 22 for gripping at the same time, and at least the rotation speed of the first pressure-type rotatable roller 211 is the second pressure-type rotatable. The carpet 1 is stretched in the stitch direction of the loop pile yarn 11 (in the direction of the arrow 25 in FIG. 5B) by setting and driving the roller 221 so as to be larger than the rotation speed of the roller 221, and FIG. As shown in B), the backing layer 13 and the base fabric layer 12 are partially broken 26 and 27, and at the same time, the loop pile yarn 11 constituting the carpet layer 10 is stretched so that the loop is eliminated, The loop pile yarn 11, the base fabric layer 12, and the backing layer 13 constituting the carpet layer 1 can be separated separately by separating from the fabric layer 12.

  If the carpet 1 is a tile carpet, as shown in FIG. 5, the first pressure-type rotatable roller 211 is rotated at a predetermined rotational speed, but the second pressure-type rotatable roller 221 is The rotation may be stopped, or may be set to a rotation speed lower than a predetermined rotation speed of the first pressure-type rotatable roller 211. Furthermore, a combination of rollers rotating in opposite directions may be used.

  If the carpet 1 is a tile carpet, the above operation is repeated for each tile carpet 1.

  The above-described specific example according to the present invention is particularly excellent when processing a long carpet. In this case, the rotational speed of the first pressure-type rotatable roller 211 is set to be the same as that of the second pressure-type rotatable roller 221. The carpet 1 is fed at a predetermined speed by the second pressure-type rotatable roller 221 in the direction of the first pressure-type rotatable roller 211 while being driven to be set to be higher than the rotation speed, and the first pressure-type rotatable roller 211 is sent. The separation operation described above is executed according to the difference between the rotational speed of the pressure-type rotatable roller 211 and the rotational speed of the second pressure-type rotatable roller 221, and the loop pile yarn 11 is separated from the base fabric layer 12 and the backing layer 13. After passing through the first pressure-type rotatable roller 211 in a state where the pressure is applied, the gauge (gap between the rollers) of the first pressure-type rotatable roller 211 can initially pass through the carpet. As such, what had been set to gauge depending on the thickness of the carpet, it is set to the gauge as draw grips only the loop pile yarn 11.

  Further, in the present invention, similar to the specific example of FIG. 1, the loop pile yarn 11 and the base generated from at least the vicinity of the pair of second pressure-type rotatable rollers 221 as the second gripping means 22. Individual storage means 32 without intervening the appropriate take-up means 30, 31 separately between the backing layer 13 separated from the cloth layer 12, the loop pile yarn 11 and the base fabric layer 12 separated from the backing layer 13. , 33 can be individually stored.

  Similarly, in the present invention, the carpet 1 connected to the loop pile yarn 11 generated at the start of processing in this specific example near the first pressure-type rotatable roller 211 as the first gripping means 21. It is desirable to store the end portion 23 and the base fabric layer 12 and the backing layer 13 associated therewith in appropriate storage means 53.

  For this purpose, it is desirable to provide appropriate cutter means 52 for cutting the loop pile yarn 11 and the end 23 of the carpet 1 in the vicinity of the first pressure-type rotatable roller 211.

  On the other hand, the loop pile yarn 11 separated from the backing layer 13 and the base fabric layer 12 is configured to be individually and continuously stored in the individual storage means 55 without passing through the appropriate take-up means 54. You can also do things.

  In the specific example of the present invention, the pair of first pressure type rotatable rollers may be configured to be arbitrarily displaceable in the stitch direction of the loop pile yarn 11, thereby It is also possible to make the breaking operation of the backing layer 13 and the base fabric layer 12 efficient.

  Detailed examples according to the above specific examples will be described below.

Example 2
After confirming that the collected used tile carpet used in Example 1 is nylon in the inspection process, one end 24 in the stitch direction of the loop pile yarn 11 of the tile carpet is a pair of second pressurizing rotations. The other end 23 is fixed to the second pressure-type rotatable roller 221 while the surface temperature of the vinyl chloride backing layer of the tile carpet is heated to 80 ° C. using the heating means 42. After the pair of first pressure-type rotatable rollers 211 set at a rotation speed higher than the rotation speed in the direction of stretching the carpet, the rollers are rotated to rotate the end portions of the carpet. The loop pile yarn 11 made of nylon fiber is pulled out from the base fabric layer 12 by pulling out the warp yarns of the base fabric layer 12 and stretching the tile fabric. The PET 1 was separated into a loop pile yarn 11 made of nylon fiber to which a vinyl chloride backing layer 13 was attached, a base fabric layer 12 and a vinyl chloride backing layer 13.

  The weight ratio of the recovered used carpet carpet 1 to the carpet layer 10 and the vinyl chloride backing layer 13 was about 15 to 85. As a result of separation into three layers through this process, a pure vinyl chloride backing layer (weight ratio) was obtained. 65%) and a part of the vinyl chloride backing layer adhered in powder form (25% by weight, 50% vinyl chloride compound content) and base fabric layer (10% by weight, vinyl chloride compound content 80) %). Thereafter, the nylon fiber as the loop pile yarn 11 was washed and dried with a washing machine, the fine powdery vinyl chloride backing layer was peeled off, and the weight was measured. As a result, the weight ratio was 23.75%. Since the content of nylon fibers in the tile carpet is 12.5% by weight, nylon fibers having 47% vinyl chloride adhered to the powder are obtained.

  Although the specific example according to the present invention described above has described the process configured to separate the already manufactured carpet 1, the present invention interrupts the vertical burrs of the carpet being manufactured. Without this, it is possible to separate the longitudinal burr continuously.

  That is, as another aspect of the present invention, each constituent material of a tufted type carpet having a loop pile yarn configured to execute the above-described separation and recovery method is carried out continuously with the carpet trimming step. It is a method of separating and collecting.

  That is, FIG. 4 is a diagram for explaining the processing method in another specific example of the present invention described above, and is a cross-sectional view of a process in which the carpet 1 including the vertical ear burr 15 is used as the carpet 1.

  That is, the wide and long carpet 1 (100) in which the carpet layer 10 and the vinyl chloride backing layer 13 are bonded together is a wide and long carpet 1 (100) as shown in FIG. The carpet 1 is punched out to form only the ear burrs. Here, only the vertical ear burrs 15 are separated and supplied directly to the carpet separation process shown in FIG.

  Accordingly, the rotation speed of the second pressure-type rotatable roller 221 is fixed in synchronization with the speed of the manufacturing process of the wide and long carpet 1 (100), and the other end of the vertical ear burr 15 is fixed. The portion 23 is engaged with a pair of the first pressure-type rotatable rollers 211 having a higher rotational speed, thereby causing a difference in rotational speed between the first pressure-type rotatable roller 211 and the second pressure-type rotatable roller 221. By stretching and tearing the longitudinal yarn of the fabric layer 12 and tearing the backing layer 13, it can be separated and recovered into three layers of the loop pile yarn 11, the base fabric layer 12 and the vinyl chloride backing layer 13 of the carpet layer 10.

  In the above specific example of the present invention, it is needless to say that the horizontal ear burr cannot be the object of the separation process of the present invention.

  Detailed examples of specific examples of the present invention will be described below.

Example 3.
In the manufacturing process of the tufted type tile carpet 1 having a loop layer, after punching the tile carpet 1 in the punching process 4 from the wide and long sheet 1 (100) in which the carpet layer 10 and the vinyl chloride backing layer 13 are bonded together. While the horizontal ear burrs 16 were continuously removed, only the vertical ear burrs 15 were separated. The vertical ear burr 15 is engaged with a pair of second pressure-type rotatable rollers 221 synchronized with the speed of the manufacturing process, and one end portion 23 of the vertical ear burr 15 is paired with a pair of faster rotation speeds. 1 By engaging with a pressure-type rotatable roller 211, the longitudinal yarn of the base fabric layer is stretched by the difference in rotational speed between the two, and the tear layer is formed into three layers of fibers of the carpet layer, the base fabric layer 12, and the vinyl chloride backing layer 13. It was possible to separate and recover. The horizontal ear burr 16 was pulverized by a conventional pulverization process.

Comparative Example 1
The recovered used tile carpet used in Example 1 was washed and pulverized to a powder of 0.5 mm square or less, and then the fiber content was separated with a centrifuge, and then the vinyl chloride compound was made into a sheet. . Since the fiber scraps were not completely removed, the sheet had a lot of fluff on the surface and could be used as a backing material for tile carpets, but could not be used as a backing material for floor materials having a flat surface.

Comparative Example 2
A vertical ear burr similar to that of Example 3 was made into a powder having a size of 0.5 mm square or less, and then the fiber content was separated by a centrifugal separator, and then a vinyl chloride compound was formed into a sheet. Since the fiber scraps were not completely removed, the sheet had a lot of fluff on the surface and could be used as a backing material for tile carpets, but could not be used as a backing material for floor materials having a flat surface.

  Next, as a third aspect of the present invention, the first aspect of mechanically gripping one end of a carpet composed of at least three layers of a carpet layer made of loop pile yarn, a base fabric layer, and a backing layer. The gripping means is disposed at a position moved from the one end of the carpet by a predetermined distance in the stitch direction of the loop pile yarn toward the interior of the carpet body, or disposed at the other end of the carpet. A second gripping means for mechanically gripping the other end of the carpet or a part of the carpet; and at least the first gripping means to stretch the carpet in the stitch direction of the loop pile yarn. The backing layer and the base fabric layer are partially broken, and at the same time, the loop pile yarn constituting the carpet layer is stretched so that the loop is eliminated. A device for separating and collecting each constituent material of a tufted type carpet having a loop pile yarn which is provided with a function for separating and provided with a driving means for causing the first gripping means to perform the function. .

  In the apparatus for separating and collecting each constituent material of the tufted type carpet having the loop pile yarn in this embodiment, at least one of the first gripping means 21 and the second gripping means 22 is at least A part of the carpet is fixedly gripped, and at least the first gripping means 21 is moved away from the second gripping means 22 along the stitch direction of the loop pile yarn 11 A gripping means moving mechanism 50 that moves the at least the first gripping means 21 in a direction away from the second gripping means 22, thereby forming the loop pile yarn 11 and the base constituting the carpet layer 10. The fabric layer 12 and the backing layer 13 may be configured to be separated separately.

  At least one of the first and second gripping means 21 and 22 in this aspect includes a protrusion, a needle-like part, a protrusion-like part, a hook-like part, a groove-like part, etc. It is preferable that a plurality of locking members of at least one selected type are formed.

  On the other hand, as another specific example in this aspect, the first gripping means 21 and the second gripping means 22 mechanically grip at least one part of the carpet 1 or the end of the carpet. And a rotational speed of the pair of pressure-type rotatable rollers 211 at least in the first gripping means 21 in the direction of stretching the carpet. It is preferable that pressure-type rotatable roller drive control means 50, 51 for rotating the pair of pressure-type rotatable rollers 221 in the second gripping means 22 at a speed higher than the rotational speed is provided.

  On the other hand, in this embodiment of the present invention, the loop pile yarn 11 generated from at least the vicinity of the second gripping means 22 and the backing layer 13 separated from the base fabric layer 12 and the loop pile yarn 11 are provided. And the base fabric layer 12 separated from the backing layer 13 may be individually housed in the separate housing means 32, 33 with or without the take-out means 30, 31. The loop pile yarn storage means 35 does not pass through the take-up means 34 provided in the vicinity of the first gripping means 21 for the loop pile yarn 11 separated from the one backing layer 13 and the base fabric layer 12. It can also be configured to be housed in

  As another specific example in this aspect, a heating means 42 for heating at least the backing layer 13 is provided between the first and second gripping means 21 and 22. Also good.

  Furthermore, as another specific example in this aspect, at least one of the first pressure-type rotatable roller 211 and the second pressure-type rotatable roller 221 can be in a rotation stop state at an arbitrary time. It is also desirable to be configured.

  On the other hand, as still another specific example of this aspect, at least one of the first and second gripping means 21 and 22 is configured to hold the carpet by appropriate control means 60 and 61 and the carpet. It is configured such that both states of releasing the state can be arbitrarily taken, and the pressing force for pressing the carpet by holding the carpet 1 between the pair of rollers is set to an appropriate value. It is also preferable that

  In each of the above specific examples, the gripping means shown in FIG. 1 or 2 is used for one of the first and second gripping means 21 and 22, and the other is shown in FIG. A combination of using a rotating roller type gripping means as shown is also possible.

  As still another specific example of the present invention, as shown in FIG. 4, it is directly connected to the carpet trimming process without cutting the vertical ear burrs 15 continuously discharged from the trimming process. In the above-described present invention, the constituent material of the tufted type carpet having the looped pile yarn is supplied to the separation and recovery device.

  Next, still another specific example of the present invention will be described with reference to FIGS.

  That is, in this specific example, as shown in FIGS. 6 and 7, the first gripping means 21 that mechanically grips one end 23 of the carpet 1 and the loop 23 from one end 23 of the carpet 1. It is arranged at a position 24 moved in the carpet body inside direction by a predetermined distance in the stitch direction of the pile yarn 11 and mechanically grips one part of the carpet or at the other end position 24 ′ of the carpet 1. A carpet which is arranged and gripped by the second gripping means 22 for mechanically gripping the end 24 ′ of the carpet 1 and extended between the first gripping means 21 and the second gripping means 22. The carpet 1 is pulled down in the stitching direction by pushing down the carpet 1 while pressing the carpet 1 as shown in the figure with a pressing member 70 that moves up and down by an appropriate driving means, for example. Then, the backing layer 13 and the base fabric layer 12 are broken, and at the same time, the loop pile yarn 11 constituting the carpet layer 10 is stretched so that the loop is eliminated and separated from the base fabric layer 12. A method and apparatus for separating and recovering each constituent material of a tufted type carpet having a loop pile yarn.

  FIG. 6A shows a member having a wedge-shaped or hook-shaped protrusion with a sharp tip formed as a pressing member 70 capable of moving up and down between the first gripping means 21 and the second gripping means 22. The front view of the pressing member 70 has a cross-sectional shape as shown in FIG. 6D, for example, and the cross-sectional shape in the width direction of the carpet of the pressing member 70, that is, the side shape is It has a cross-sectional shape as shown in FIG.

  Then, as shown in FIG. 6B, the carpet 1 that is extended between the first gripping means 21 and the second gripping means 22 by using the pressing member 70 with appropriate driving means. By moving downward while pressing, the carpet 1 is stretched in a V-shape or U-shape while applying a predetermined tension to the carpet 1 to stretch the carpet 1 in the stitch direction, and the backing layer 13 At the same time when the base fabric layer 12 is broken, the pile pile 11 constituting the carpet layer 10 is released as a substantially straight thread after its pile shape is eliminated.

  FIG. 7 shows an example in which a roller-shaped member is used as the pressing member 70, and the roller-shaped member may move up and down while rotating, or it does not rotate. There may be.

  In any of the specific examples described above, the cut backing layer 13 and the base fabric layer 12 are subjected to storage processing using appropriate take-up means and storage means as shown in FIG. It is desirable to use an appropriate cutter means and cut it into an appropriate length and store it in an appropriate storage means.

  The pressing length of the pressing member 70 is an appropriate length depending on the length between the first gripping means 21 and the second gripping means 22, the unit loop length of the pile yarn, the pile yarn density, and the like. It can be adjusted.

  In the specific examples as shown in FIGS. 6 and 7, particularly when the tile carpet is separated and collected, the first gripping means 21 and the second gripping means 22 are simply moved up and down. In place of the gripping means configured as described above, the first gripping means 21 and the second gripping means 22 include a plurality of gripping units connected endlessly as shown in FIG. It is also possible to use the one configured so as to rotate in a predetermined direction.

  More specifically, as shown in FIG. 8A, for example, a plurality of gripping units 71 having a plurality of needle-like or comb-like projections 72 on the surface are connected to each other through appropriate means and are endless. An endless belt body 73 is formed, and the endless belt body 73 is configured to be rotated in a predetermined direction by applying a predetermined tension by at least a pair of drive rotation rollers 75 and 76.

  Two endless belt bodies 73 are prepared, and the pair of endless belt bodies 73, 73 ′ constitute the first gripping means 21, and a predetermined tile carpet 1 is sandwiched between them to a predetermined distance. The carpet 1 is moved and fixed.

  A pair of endless belt bodies 79, 79 'having the same structure constitutes the second gripping means 22, and a predetermined tile carpet 1 is held between them and the carpet 1 is moved and fixed by a predetermined distance. .

  The endless belt bodies 73 and 73 'and the endless belt bodies 79 and 79' are arranged in parallel to each other, and are set so as to rotate and move in the same direction at the same speed at the same time.

  The endless belt bodies 73 and 73 ′ and the endless belt bodies 79 and 79 ′ have a plurality of gripping units 71 that are in contact with the tile carpet 1 and are pressed against the carpet side. It is desirable that appropriate pressurizing means 80 and 81 are disposed.

  FIG. 8B is a side view of FIG.

  8A, the used tile carpet 1 is supplied from the left side of FIG. 8A, and the endless belt bodies 73 and 73 ′ constituting the first and second gripping devices 21 and 22 are provided. And the endless belt bodies 79 and 79 ′, and then the endless belt bodies 73 and 73 ′ and the endless belt bodies 79 and 79 ′ are moved at the same speed in the directions of arrows 82 and 83. When the carpet 1 is moved to a predetermined position (position shown in FIG. 8A), the driving of the first and second gripping devices 21 and 22 is stopped.

  At this time, when supplying the tile carpet, it is desirable to supply the tile carpet so that the pile direction of the tile carpet and the stitch direction 25 of the 11 are perpendicular to the traveling direction of the tile carpet.

  Thereafter, as described with reference to FIG. 6 or FIG. 7, the pressing member 70 moves the tile carpet 1 downward or upward to break the backing layer 13 and the base fabric layer 12 constituting the tile carpet 1. At least, the loop pile yarn 11 is separated while being stretched.

  When the above-described separation process is completed, the endless belt bodies 73 and 73 ′ and the endless belt bodies 79 and 79 ′ constituting the first and second gripping devices 21 and 22 rotate and move in the same direction, An operation of drawing another tile carpet while discharging the backing layer 13, the base fabric layer 12, and the loop pile yarn 11 separated from the tile carpet 1 is started, and preparations for starting the next separation process are started.

  FIG. 8C is a perspective view of FIG.

  Used carpets can be separated from the vertical burrs generated in the manufacturing process of carpets into loop pile yarns, base fabric layers, and backing layers individually prior to crushing, so that they can be reused. And significantly reduce industrial waste emissions.

FIG. 1 is a cross-sectional view showing a specific example of the process of separating and collecting the loop pile yarn, the base fabric layer and the backing layer from the carpet of the present invention. FIG. FIG. 1B is a diagram illustrating a state in which a separation processing operation is being performed. FIG. 2 is a perspective view showing the configuration of a specific example of the gripping means used in the present invention. FIG. 3 is a plan view showing a state in which vertical and horizontal burrs are by-produced in the tile carpet manufacturing process. FIG. 4 shows a configuration of a specific example in which the loop pile yarn, the base fabric layer, and the backing layer are separated from each other in the present invention in a process that is continuous with the carpet manufacturing process. FIG. FIG. 5 is a cross-sectional view showing the configuration of another specific example of the process of separating and collecting the loop pile yarn, the base fabric layer, and the backing layer from the carpet of the present invention. FIG. FIG. 5B is a diagram illustrating a state in which a separation processing operation is being performed. FIG. 6 is a cross-sectional view showing still another specific example of the process of separating and collecting the loop pile yarn, the base fabric layer, and the backing layer from the carpet of the present invention. FIG. 6 (A) shows that the separation processing operation is performed. FIG. 6B is a diagram showing a state in which the separation processing operation is being executed. 7 is a cross-sectional view showing another aspect of the specific example shown in FIG. 6, FIG. 7A shows a state immediately before the separation processing operation is executed, and FIG. FIG. 10 is a diagram illustrating a state in which a separation processing operation is being performed. 8 is a cross-sectional view showing another embodiment of the gripping means shown in FIG. 6 or FIG. 7, FIG. 8 (A) is a front view thereof, and FIG. 8 (B) is a front view thereof. FIG. 8C is a side view, and FIG. 8C is a perspective view thereof.

Explanation of symbols

1: Carpet 1 (100): Wide and long carpet 4: Punch process 5: Locking member 10: Carpet layer 11: Loop pile yarn 12: Base fabric layer 13: Backing layer 15: Vertical ear burr 16: Horizontal ear burr 21 : First gripping means 22: second gripping means 23: one end 24 of the carpet 24: position 24 'inside the carpet 25: the other end 25 of the carpet 25: stitch direction 26 of the loop pile yarn: breakage of the backing layer Section 27: Breaking portion of base fabric layer 30, 31, 34, 36, 38, 54: Take-up means 32, 33, 35, 37, 39, 53, 55: Storage means 39: Loop pile yarn storage means 40, 41, 52: Cutter means 42: Heating means 50, 51: Driving means 60, 61: Control means 70: Pressing member 71: Holding unit 72: Protruding portion 72
73, 73 ', 79, 79': Endless belt bodies 75, 76, 74, 77: Drive rotation rollers 80, 81: Pressurizing means 211: First pressure type rotatable roller 221: Second pressure type rotatable roller

Claims (14)

  A carpet composed of at least three layers of a loop pile yarn, a carpet layer, and a backing layer is stretched in the stitch direction of the loop pile yarn to simultaneously break a part of the backing layer and the backing layer. The loop pile yarn constituting the carpet layer is individually separated from the base fabric layer or the backing layer by peeling the loop pile yarn constituting the carpet from the base fabric layer or the backing layer while stretching the loop pile yarn so as to eliminate the loop. A method for separating and recovering each constituent material of a tufted type carpet having a loop pile yarn characterized by separating.   A carpet composed of at least three layers of a loop pile yarn, a carpet layer, and a backing layer is stretched in the stitch direction of the loop pile yarn to simultaneously break a part of the backing layer and the backing layer. The loop pile yarn constituting the carpet layer is separated from the backing fabric layer while being stretched so that the loop is released and is peeled from the backing layer, thereby forming the loop pile yarn, the backing fabric layer and the backing layer. A method for separating and recovering each constituent material of a tufted type carpet having a loop pile yarn, wherein   First gripping means for mechanically gripping one end of the carpet and a position moved from the one end of the carpet to the interior of the carpet body by a predetermined distance in the stitch direction of the loop pile yarn A second gripping means for mechanically gripping a part of the carpet or mechanically gripping the end of the carpet disposed at the other end position of the carpet, and at least the In the first gripping means, the carpet is stretched in the stitch direction of the loop pile yarn to break part of the backing layer and the base fabric layer, and at the same time the loop pile yarn constituting the carpet layer is eliminated by the loop The second gripping hand is provided with a function of separating the base fabric layer while being stretched so that the first gripping means grips one end of the carpet. The loop pile yarn, the base fabric layer, and the backing layer constituting the carpet layer by driving at least the first gripping means after gripping the other end of the carpet or one part other than the end. 3. The method for separating and recovering each constituent material of tufted type carpet having loop pile yarn according to claim 1, wherein each of the components is separated separately.   At least one of the first gripping means and the second gripping means has a structure for fixing and gripping at least a part of the carpet, and at least the first gripping means is connected to the second gripping means. 4. The method for separating and recovering each constituent material of a tufted type carpet having a loop pile yarn according to claim 3, wherein the material is moved in a direction away from the stitch direction of the loop pile yarn.   The carpet is moved inward in the carpet body by a predetermined distance in the stitch direction of the loop pile yarn from one end of the carpet and first gripping means for mechanically gripping one end of the carpet. The second gripping means is arranged to mechanically grip one part of the carpet placed at the position or to grip the end of the carpet mechanically gripped at the other end position of the carpet. When the carpet between the first gripping means and the second gripping means is pressed by a pressing member that moves up and down, the carpet is stretched in the stitching direction and the backing layer and the base fabric layer are partially broken. 3. The loop pie according to claim 1, wherein the loop pile yarn constituting the carpet layer is stretched and separated from the base fabric layer so that the loop is eliminated. 4. How to separate and recover the constituent material of the tufted type of carpet with a yarn.   At least one of the first and second gripping means is composed of a pair of base parts, and a protrusion, a needle-like part, a projecting part, a hook-like part, a groove-like part, etc. on each of a pair of mutually opposed surfaces. 6. Each structure of a tufted type carpet having a loop pile yarn according to any one of claims 2 to 5, wherein a plurality of locking members of at least one kind selected from the above are formed. A method of separating and recovering materials.   5. The tufted type carpet having a loop pile yarn according to claim 3, wherein at least one of the first and second gripping means includes a pair of pressure-type rotatable rollers. A method of separating and recovering each constituent material.   Both the first and second gripping means are constituted by a pair of pressure-type rotatable rollers, and one end of the carpet is gripped by the pair of first pressure-type rotatable rollers as the first gripping means. After fixing and fixing a part other than the end of the carpet or the other end of the carpet to the pair of second pressure-type rotatable rollers as the second gripping means, at least the first The loop pile yarn according to claim 7, wherein a rotation speed of the pressure-type rotatable roller in a direction in which the carpet is stretched is rotated at a speed larger than the rotation speed of the second pressure-type rotatable roller. A method for separating and recovering each constituent material of a tufted type carpet having   First gripping means for mechanically gripping one end of a carpet composed of at least three layers of a carpet layer made of loop pile yarn, a base fabric layer, and a backing layer; and the loop pile from one end of the carpet A first part of the carpet that is disposed at a position moved in the direction of the inside of the carpet body by a predetermined distance in the stitch direction of the yarn is mechanically gripped, or the other end of the carpet is mechanically gripped. Two gripping means, and at least the first gripping means, the carpet is stretched in the stitch direction of the loop pile yarn to break a part of the backing layer and the base fabric layer, and at the same time, the loop constituting the carpet layer A function of separating the pile yarn from the base fabric layer while stretching it so as to eliminate the loop is provided, and the first gripping means performs the function. Apparatus for separating and recovering the constituent materials of the tufted type of carpet having a loop pile yarn, characterized in that means are provided.   At least one of the first gripping means and the second gripping means has a structure for fixing and gripping at least a part of the carpet, and at least the first gripping means is connected to the second gripping means. Gripping means moving mechanism for moving in a direction away from the stitch direction of the loop pile yarn, and moving at least the first gripping means in a direction away from the second gripping means, The loop pile yarn, base fabric layer, and backing layer constituting the carpet layer are separately separated, and each constituent material of the tufted type carpet having the loop pile yarn according to claim 9 is separated and recovered. apparatus.   First gripping means for mechanically gripping one end of a carpet composed of at least three layers of a carpet layer, a base fabric layer, and a backing layer made of loop pile yarn, and the loop pile yarn from one end of the carpet Is located at a position moved in the direction of the interior of the carpet body by a predetermined distance in the stitch direction of the carpet and mechanically grips one part of the carpet or is disposed at the other end position of the carpet. And a pressing member that moves the carpet between the first gripping means and the second gripping means up and down to press the carpet. The loop pile that constitutes the carpet layer at the same time that the carpet is stretched in the stitching direction by pressing the carpet to break a part of the backing layer and the base fabric layer. The apparatus for separating and recovering the constituent materials of the tufted type of carpet having a loop pile yarn, characterized in that to separate from the base fabric layer by stretching As the loop is eliminated. At least one of the first and second gripping means includes a pair of base portions and a projection, a needle-like portion, a protrusion-like portion, a hook-like portion, a groove-like portion, etc. 12. Each structure of a tufted type carpet having a loop pile yarn according to claim 9 , wherein a plurality of locking members of at least one kind selected from the above are formed. Equipment for separating and collecting materials. The first gripping means and the second gripping means have a structure comprising a pair of pressure-type rotatable rollers that mechanically grip at least one part of the carpet or the end of the carpet, and At least the rotation speed of the first pressure-type rotatable roller in the first gripping means in the direction in which the carpet is stretched is adjusted so that the second pressure-type rotatable roller in the second gripping means. The pressure-type rotatable roller drive control means for rotating at a speed higher than the rotational speed is provided, and each constituent material of the tufted type carpet having a loop pile yarn according to claim 9 is separated. Equipment to collect. Each constituent material of a tufted type carpet having a loop pile yarn, wherein the separation and recovery device according to any one of claims 9 to 13 is provided in connection with the carpet trimming step. Equipment for separation and recovery.

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