JP2001058366A - Sheetlike article and recycling method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a sheetlike article not generating a harmful substance at a time of incineration and landfill and capable of being recycled and a recycling method thereof. SOLUTION: A sheetlike article is obtained by coating at least the single surface of a fabric comprising a yarn material with a resin and 75 wt.% or more of the sheetlike material comprises an org. polymer of the same compsn. In a recycling method, the sheetlike article is depolymerized to be refined as ε-caprolactam and this ε-caprolactam is polymerized to produce a nylon 6 polymer or the sheetlike article is ground and extruded in a molten state to produce a film molded article.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet material excellent in chemical recycling or material cycle and a method for recycling the same.

[0002]

2. Description of the Related Art Conventionally, a sheet-like material is manufactured by coating a soft vinyl chloride resin on a fiber base fabric by various methods such as a calendering method, an extrusion method, a coating method, and dipping, and a tent for various events and a warehouse. Tents, eaves tents, truck tops, architectural curing sheets, signboard backlits, flexible containers, open stacking sheets,
Widely used for various applications such as water impermeable sheets. Vinyl chloride resin has various advantages such as low cost and good handleability, but at the time of disposal, for example, toxic gas or smoke containing chlorine element is generated when incinerated, and contained in the resin when buried. It has a serious disadvantage that plasticizers and stabilizers contaminate soil and water.

[0003] In recent years, environmental conservation on a global environmental scale has been avoided, and product development using resins that do not contain harmful elements such as halogen elements and resins that do not contain environmental hormones has been combined with the effective use of resources. There is a strong desire for product development that can be performed.

[0004] From such a viewpoint, commercialization of coating a fiber base fabric with an olefin resin or a urethane resin has been studied in various fields, but the former has a problem in that the resin has low wear strength, and the latter has a problem in that the cost is increased. There is a common problem that both cannot be recycled.

[0005] A sheet-like material which does not generate toxic substances upon disposal and has recyclability has not yet been proposed.

[0006]

SUMMARY OF THE INVENTION In view of the background of the prior art, the present invention provides a sheet-like material which does not generate harmful substances during incineration disposal or burial disposal and which can be recycled for use, and a recycling method thereof. Is to be provided.

[0007]

The present invention employs the following means in order to solve the above-mentioned problems. That is, the sheet-like material of the present invention is characterized in that at least one side of the base fabric is coated with a resin, and 70% by weight or more of the sheet-like material is made of an organic polymer having the same composition. Also, the recycling method of the present invention is a method of depolymerizing a sheet-like material to purify it into ε-caprolactam,
The present invention is characterized in that it is polymerized into a nylon 6 polymer, and that a sheet-like material is pulverized and melt-extruded to produce a film molded product.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention has been made to thoroughly study the above-mentioned problem, that is, a sheet-like material which does not generate harmful substances at the time of incineration disposal or burial disposal and which can be recycled, and a recycling method thereof. When viewed as a fiber-based fabric made of an organic polymer and a specific sheet-like material coated with a resin, or depolymerizing the sheet-like material,
It has been found that a sheet-like material can be easily pulverized and melt-extruded, and that such a problem can be solved at once.

That is, for example, when the organic polymer is composed of nylon 6 or polyethylene terephthalate, harmful substances such as halogen-containing substances and environmental hormones are not generated at the time of disposal, and nylon is depolymerized into raw material monomers. It has been found that polyethylene terephthalate can be re-melted and reused.

The sheet-like material of the present invention is preferably 70% by weight or more, more preferably 80% by weight or more, more preferably 90% by weight of the base fabric and the resin to be coated in consideration of recyclability.
The weight percent or more is made of an organic polymer having the same composition. If the content is less than 70% by weight, it is difficult to separate the depolymerization during recycling, and it may not be possible to recover a high-purity monomer. In the case of re-melting and reusing, the amount of impurities increases, so that a fibrous or film-like film is formed. It is not preferable because it is difficult to mold into a shape and the strength of the molded product may be reduced.

The organic polymer of the present invention is preferably a thermoplastic resin, for example, polyamide resin such as nylon 6, nylon 66, nylon 610, nylon 46, polyester resin such as polyethylene terephthalate and polybutylene terephthalate, polyethylene, polypropylene and the like. Olefin resin, urethane resin, etc., and can be used as a mixture of two or more kinds as long as the effects of the present invention are not impaired. Natural fibers may be mixed. In addition, a coloring agent, a flame retardant, and the like, as long as the effects of the present invention are not impaired.
Antistatic agent, conductive agent, antifungal agent, light stabilizer, ultraviolet absorber,
It may contain a heat stabilizer, an antifouling agent, an antibacterial agent, a deodorant, a plasticizer, and an inorganic filler.

Of these, nylon 6 and polyethylene terephthalate are particularly preferably used from the viewpoint of recyclability. Such nylon 6 is a raw material (monomer)
It is the only mass-produced polymer that can be easily decomposed and purified to high purity. When nylon 6 is heated in the presence of a depolymerization catalyst, ε-
Decomposed to caprolactam. Further, this ε-caprolactam has a boiling point of about 140 ° C. under reduced pressure (about 10 mmHg).
Therefore, it can be easily separated and purified by distillation. Therefore, ε-caprolactam obtained by decomposition can be purified to a purity similar to that of a new product by precision distillation or crystallization purification method, and can be reused as a polymerization raw material. The recovered ε-caprolactam is purified, polymerized, regenerated into nylon 6, and used for melt spinning and molding.

The nylon 6 used in the sheet-like material of the present invention may be a polymer obtained by polymerizing ε-caprolactam by a usual method, and the degree of polymerization is 2.0 to 4.0 as a relative viscosity of a 98% sulfuric acid solution. Suitably within the range. The nylon 6 polymer may contain other nylons, other resins, and the like as long as the nylon 6 polymer does not interfere with the decomposition step.

On the other hand, polyethylene terephthalate can be separated into its constituent components ethylene glycol and terephthalic acid by depolymerization, but at present, it is extremely difficult to separate these two components with high purity. It is efficient to re-melt it and reuse it for fibers and films like recycling PET bottles.

The present invention is a sheet-like material in which at least one surface of a base fabric is coated with a resin. The base fabric of the present invention refers to a woven fabric, a knitted fabric, or a nonwoven fabric made of monofilament, multifilament, split yarn, slit yarn, or the like. Further, the desired base fabric form can be obtained by using long fibers, short fibers and a mixture thereof. In the present invention, a long-fiber woven fabric is preferred from the viewpoint of strength.

As a method of coating the base cloth with a resin, a known method can be adopted and is not particularly limited. For example, the film may be directly adhered to the base cloth while forming the film by a calendering method, a T-die extrusion method, or the like, or after the film is formed, the film may be laminated with an adhesive if necessary, or the resin is dissolved in a solvent. Alternatively, a method of forming a film by coating or dipping a finely divided and dispersed in water can also be employed. In the direct bonding and coating method or dipping method by hot melting, the mechanical properties of the base fabric may be reduced by heat because the base fabric and the coating resin are the same. In order to suppress the generation, it is preferable that the polymerization degree of the polymer of the fiber component is higher than the polymerization degree of the coating resin. Further, a method of laminating with an adhesive after forming a film can be preferably used from the viewpoint that the adhesive strength and the waterproofness can be stably provided.

Further, a method in which a resin is coated on the fiber produced by the ordinary melt spinning method to form a fabric, and the resin of the fabric is heat-sealed, may also be employed. Preferably, the degree of polymerization of the polymer is higher than the degree of polymerization of the coating resin.

As such an adhesive, a solvent-based or water-based adhesive can be used, but a solvent-based two-part urethane adhesive can be preferably used in view of durability and adhesive strength. The amount of the adhesive used is preferably in the range of 10 to 100 g / m ² , more preferably 30 to 50 g / m ² in terms of resin solid content. That is, if the amount of adhesion is less than 10 g / m ² , the adhesion is insufficient and the durability is poor.

The adhesive strength between the coated resin film and the fabric is preferably at least 2 kg / 2 cm, more preferably 4 kg / cm.
It is preferably at least kg / 2 cm from the viewpoint of durability.
That is, if the adhesive force is less than 2 kg / 2 cm, peeling may occur due to external force depending on the use.

The adhesive contains a colorant, a flame retardant, a conductive agent, a fungicide, a light stabilizer, an ultraviolet absorber, a heat stabilizer, an antibacterial agent, and an inorganic filler as long as the adhesiveness is not impaired. Is also good.

The sheet material of the present invention preferably contains a flame retardant. Examples of a method for incorporating such a flame retardant include a method of kneading with a coating resin or an adhesive. When contained in a resin or an adhesive, the addition of a large amount of a flame retardant to a thin resin layer causes adverse effects such as film-forming properties, a decrease in film strength, and a decrease in adhesive strength. .

As a method for incorporating a flame retardant into the base fabric,
The flame retardant may be blended or copolymerized with the fiber, or may be adhered to the fiber surface, and is not particularly limited. However, post-processing is preferred from the viewpoint of strength and workability. Such post-processing can be performed by a known method using a known chemical, and is not particularly limited. However, from the viewpoint of preventing environmental pollution, a material containing no halogen such as chlorine or bromine is preferable.

As such a flame retardant, the cloth may be dipped in a solvent-based or aqueous solution containing a phosphorus-based or inorganic salt-based compound, squeezed with a mangle so as to have a predetermined adhesion amount, dried, and optionally cured. . By including a flame retardant in such a base fabric, the amount of the flame retardant added to the coating resin layer and the adhesive layer can be reduced, thereby improving the film forming property and mechanical properties of the coating resin, and improving the adhesive strength. be able to.

Further, in such a base fabric, a coloring agent, an antistatic agent, an antifouling agent,
A water repellent, a softener, a high color former, and the like can be blended or adsorbed, and among them, a water repellent treatment is preferable.

The water-repellent treatment can be carried out by using a known chemical, and is not particularly limited. What is necessary is just to squeeze with a mangle so as to obtain the adhesion amount, dry and cure as necessary. By performing the water repellent treatment of the present invention, it is possible to prevent rainwater from entering from the sheet cut surface during outdoor use,
The generation of mold and adhesion of dirt can be prevented thereby, and excellent antifouling performance can be imparted. In addition, the above-described flame retardant treatment and water repellent treatment may be performed in the same bath depending on the case.

The sheet material of the present invention is JIS L-10
92 5.1 (1) Water resistance test The water resistance measured by the method A (low pressure method) is preferably 1000 mmH ₂ O or more, more preferably 2000 mmH ₂ O or more. Can be preferably used.

The sheet material of the present invention is JIS A-13
The flameproofing performance measured at 22 preferably passes the fireproofing second grade, and such performance enables it to be preferably used as a building tent. Furthermore, JIS
A material that preferably passes the flameproof standard of A-8952 (1977) can be preferably used as a material for temporary construction, for example, a curing sheet or a curing mesh.

Next, an example of the method for producing a sheet material of the present invention will be described.

First, the base fabric is made by weaving with a flat structure using nylon 6 fibers. 300 g / l of an aqueous dispersion of a phosphorus-based flame retardant and 50 g of an aqueous dispersion of a fluorine-based water repellent
/ L, a block aqueous solution of isocyanate was immersed in an aqueous mixed solution of 20 g / l, squeezed with a mangle so that the squeezing ratio became 70%, dried at 130 ° C, and cured at 170 ° C if necessary.

Next, a coating resin film to be laminated on the base cloth is prepared. In order to impart weather resistance and durability, the coating resin film is made of nylon 6 resin and titanium oxide 10% by weight. , Heat stabilizer 1% by weight other plasticizers,
A compound comprising an ultraviolet absorber is formed into a 50 μm film by a T-die extruder.

Next, a coating resin film to be described later is laminated on the surface of the above-mentioned base cloth. As an adhesive used for this lamination, for example, polyester-based polyurethane 100
In the part, an adhesive solvent solution having a solid content of 50 to 60% by weight obtained by mixing 20 parts of a trifunctional isocyanate and 6 parts of a chain extender can be used. When applying this adhesive to the base fabric, it is gravure coated and dried until the surface is tacky. The prepared base cloth is superimposed on the coating resin film thus treated with the adhesive, and then pressed and pressed between 80 ° C. metal rolls and wound up.
Aging is performed at 0 ° C. for 48 hours to produce the sheet material of the present invention. When laminating on both sides, the above operation is repeated.

In such a manufacturing method, a coating means may be employed instead of the laminating means for laminating the resin film for coating.

[0033]

The present invention will be described below in more detail with reference to examples. The performance values shown in Examples and Comparative Examples were measured by the following methods. [Waterproofness] Waterproof pressure was measured by a method specified in JIS L-1092 5.1 (1) Waterproofness test method A (low pressure method). [Flame Retardancy A] The performance was evaluated based on the "45 degree Meckel burner method" of JIS A-1322, and those that passed "Flameproof Class 2" or more specified by the Membrane Structure Association of Japan were evaluated as "good", and those below it. Indicated by ×. [Flame Retardancy B] Those which were measured and passed by the method specified in JIS A-8952 (1977) were indicated by "O", and failed by "X". [Tensile strength] The tensile strength was measured by the method specified in JIS K-6730. The tensile strength a of the fiber cloth alone and the tensile strength b of the cloth coated with a resin were measured, and b / a ×
100 was calculated to determine the tensile strength retention. [Adhesive strength] Using a high frequency welder welding machine (YF-7000A type manufactured by Yamamoto Vinita Co., Ltd.), 2 cm width × 65
A mold having a length of cm was heated to 105 ° C., and was welded at an output of 7 kW, a current value of 1.5 A, a pneumatic pressure of 4 kg / cm ² , a welding time of 2 seconds, and a cooling time of 2 seconds, followed by JIS K-6328 (5). .
3.7) Adhesive force (kg / 2cm) based on peel test
Width) was measured. [Kroughing resistance] It was measured by a method specified in JIS M-7102.

No abnormal condition was evaluated as 、, marked cracks in the epidermis,
Those with cracks were judged as x. [Amount of impurities] The ratio of substances other than nylon 6 contained in the resin-coated sheet material was determined, and the basis weight c of the 1 m ² sheet material, the basis weight d of the fiber cloth, and the nylon of the fiber cloth were measured. The percentage e of 6, the amount f of the coating resin, and the percentage h of nylon 6 contained in the coating resin were measured and determined as follows.

Weight of nylon 6 of fiber cloth X = d × e / 100 Weight of nylon 6 contained in coating resin Y = f × h / 1
00 Impurity amount = (c−X−Y) / c × 100 [Recycling performance] Recovery rate A: The sheet-like material is collected after use, input to the nylon decomposition facility c, decomposition, distillation, and cooling. Then, the recovered amount d of the recovered ε-caprolactam was measured, and d /
c × 100 was calculated to determine the recovery rate.

Recovery rate B: The sheet-like material was recovered after use, and the amount e charged into the film forming equipment and the amount f of the film remelted to form a film were measured. Calculated to determine recovery. [Relative viscosity] 0.2 g of absolutely dried sample (nylon 6 fiber)
Is dissolved in 25 ml of 98% sulfuric acid, 15 cc of the solution is injected into an Oswald viscometer, and the flow time t (sec) of the solution from the upper line to the lower line of the Oswald viscometer is measured at 25 ° C.
With the same operation, the flow time t0 at 25 ° C. of only 98% sulfuric acid is used.
(Sec) is measured, and the relative viscosity is determined by the following equation.

Relative viscosity (ηr) = (t / t0) +1.8
91 (1.000-C) C = (sample weight × 1.8311 / sample solution weight) × 100 Examples 1 to 14, Comparative Example 1 <Fabric> (1). Nylon with relative viscosity (ηr) of 4.2 6 resin (manufactured by Toray Industries, Inc.) was melt-formed, slit to a width of 20 mm, and stretched at a stretch ratio of 7 to obtain a flat yarn having a fineness of 950D. Using this flat yarn, a plain-woven woven fabric was formed at a driving density of 14 yarns / inch by a sluser loom. (2). 420 denier, 48 obtained by normal melt spinning of nylon 6 resin having a relative viscosity (ηr) of 3.5.
A filament woven nylon 6 fiber (manufactured by Toray Industries, Inc.) is twisted at a number of 100 t / m and used as a warp and a weft. A plain woven fabric is woven in a water jet loom, scoured and heat-set in a conventional manner. <Fabric treatment> Phoscon FR930N (phosphoric ester based flame retardant of Meisei Chemical Co., Ltd.) was 300 g / l, and TOM04 (Meisei Chemical Co., Ltd.) was obtained.
A work cloth is immersed in an aqueous dispersion containing 50 g / l of a fluorine-based water repellent and 200 g / l of NBP231 (block isocyanate of Meisei Chemical Co., Ltd.), and squeezed with a mangle so that the adhesion rate becomes 70%. After drying at 130 ° C., 170
Heat set at ℃. <Coating resin film> A. 10% by weight of titanium oxide, 5% by weight of plasticizer (manufactured by Toray Industries, Inc.), 0.5% by weight of hindered amine light stabilizer (LA-52, manufactured by Asahi Denka Kogyo Co., Ltd.) , UV absorber (LA-34 manufactured by Asahi Denka Kogyo Co., Ltd.)
Of 0.5% by weight and 1% by weight of a thermal degradation inhibitor was extruded with an extruder to form a 80 μm film. B. 10% by weight of titanium oxide, 5% by weight of a plasticizer (manufactured by Toray Industries, Inc.), 0.5% by weight of a hindered amine light stabilizer (LA-52, manufactured by Asahi Denka Kogyo KK), and an ultraviolet absorber ( LA-34 (made by Asahi Denka Kogyo Co., Ltd.)
Of nylon 6 having a relative viscosity of 2.8 containing 0.5% by weight and a thermal degradation inhibitor of 1% by weight was extruded with an extruder to form a 80 μm film. C. 10% by weight of titanium oxide, 5% by weight of a plasticizer (manufactured by Toray Industries, Inc.), 0.5% by weight of a hindered amine-based light stabilizer (LA-52, manufactured by Asahi Denka Kogyo KK), and an ultraviolet absorber ( LA-34 (made by Asahi Denka Kogyo Co., Ltd.)
, A nylon 6 chip having a relative viscosity of 2.8 and containing 0.5% by weight, a thermal deterioration inhibitor of 1% by weight, and a brominated flame retardant of 20% by weight was extruded with an extruder to form an 80 μm film.

The resin film for coating is placed on both sides of the fabric.
Nylon 6 resin was coated by the method shown in
The results are shown in Table 1. <Resin coating method> a. A yarn having a relative viscosity of 2.5 and containing 4% by weight of titanium oxide was used.
20% dissolved in ω-hydrofluoro alcohol
The solid solution is mixed on both sides of the base fabric with a comma coater.
Is 80g / m^TwoAt 120 ℃
Dried. b. Apply an adhesive of the following composition to the film surface by gravure coating.
50 g / m when dried with a tar^Two Coating and bonding
After the agent has dried until it becomes tacky,
2kg / cm with hot roll at 80 ℃^TwoSuppressed by pressure
And aged in a 50 ° C atmosphere for 48 hours.
Was.

Adhesive composition: 100% by weight of polyester-based polyurethane (manufactured by Dainippon Ink Industries, Ltd .; "TYFORCE 865HV") Trifunctional isocyanate 20% by weight (manufactured by Dainippon Ink Industries, Ltd .; "Barnock DN950") Catalyst 6 % By weight (“Chrisbon Accel T” manufactured by Dainippon Ink and Chemicals, Inc.) c.
50 g / m when dried with a tar^Two Coating and bonding
After the agent has dried until it becomes tacky,
2kg / cm with hot roll at 80 ℃^TwoSuppressed by pressure
And aged in a 50 ° C atmosphere for 48 hours.
Was.

Adhesive composition: 100% by weight of polyester-based polyurethane (manufactured by Dainippon Ink Industries, Ltd .; “TYFORCE 865HV”) Trifunctional isocyanate 200% by weight (manufactured by Dainippon Ink Industries, Ltd .; “Barnock DN950”) Catalyst 6 % By weight ("Chrisbon Accel T" manufactured by Dainippon Ink and Chemicals, Inc.) Flame retardant 50% by weight (CR747 manufactured by Daihachi Chemical Industry Co., Ltd.) d. The adhesive composition of (b) was dried at 50 g / m ^2. Then, the nylon 6 resin on both sides of the fabric was extruded and laminated on the fabric, and the same water-repellent treatment as in Example 1 was performed by molding a soft vinyl chloride resin having a degree of polymerization of 1000 with a calendar at 80 μm. After that, it was bonded to both sides of a base fabric treated with an adhesive with a vinyl chloride sol.

After using the sheet materials of Examples 1 to 9,
Collect, decompose, distill, cool in nylon decomposition equipment,
75% or more of the input amount could be recovered as ε-caprolactam, and the residue left in the decomposition equipment could be easily removed, and the recyclability was good.

The sheet-like material of Comparative Example 1 was similarly recovered after use, and the same amount as in Examples 1 to 9 was charged into a nylon decomposition facility. However, the viscosity was high, and in addition, the disposal amount of the remaining pot was large. ε
-Caprolactam could not be recovered and was not suitable for recycling. Example 10, Comparative Example 2 A 1000 denier, 192 filament polyester yarn obtained by ordinary melt spinning (manufactured by Toray Industries, Inc., IV =
0.9) for warp and weft, weaving with a flat structure in a water jet loom and a warp / weft density of 23/23 yarns /
Inches.

10% titanium oxide and 0.5% ultraviolet absorber,
A 50 μ polyester film (IV = 0.65) containing 0.5% of a light stabilizer (HALS) and a light stabilizer (HALS) was bonded to both surfaces in the same manner as in Example 7 (Example 10).

As Comparative Example 2, a vinyl chloride resin was attached to both sides of the woven fabric.

Table 1 shows the results of evaluating the performance of the coating method described above.

After using the sheet-shaped material of Example 10, it was recovered, pulverized, re-melted in a film-forming apparatus, and formed into a film with 95% of the input amount as a film.

The sheet-like material of Comparative Example 2 was similarly used, recovered and pulverized, and the same amount as in Example 10 was introduced into a film-forming apparatus. However, it was not possible to form a film and was not suitable for recycling. Was something. Example 11 Nylon 6 fiber of ηr3.5 (manufactured by Toray Industries, Inc.) used in Example 4 was 5% by weight of titanium oxide and a plasticizer (POB).
O 5% by weight of Yoshitomi Fine Chemical Co., Ltd., 0.5% by weight of a hindered amine light stabilizer (LA-52, manufactured by Asahi Denka Kogyo KK), and an ultraviolet absorber (LA-34)
0.5% by weight of Asahi Denka Kogyo Co., Ltd.), 1% by weight of a thermal deterioration inhibitor, and η-fiber-coated with N6 resin containing a green pigment are used for warp and weft, and open in a rapier room. A mesh fabric was woven to obtain a fabric having a warp density and a weft density of 20 yarns / inch, respectively, and then heat-treated to thermally fuse the resin at the intersections. At this time, the ηr of the resin coated on the fiber was 2.6.

As a result of evaluating the performance of the woven fabric, the flame retardancy B was acceptable, and the recovery A was 77%. Example 12 Relative viscosity of the nylon 6 fiber of ηr3.5 (manufactured by Toray Industries, Inc.) used in Example 4 containing 4% by weight of titanium oxide
5 was dissolved in ω-hydrofluoro alcohol and 2
A 0% concentration solution is prepared, the solution is impregnated with the N6 fiber, and dried at 120 ° C. is used for warp and weft, and an open mesh fabric is woven in a rapier room to obtain a warp density and a weft density. Each fabric was obtained at a rate of 20 / inch, and then heat-treated to heat-bond the resin at the intersection.

As a result of evaluating the performance of the woven fabric, the flame retardancy B was acceptable and the recovery A was 78%.

[0050]

[Table 1]

[0051]

According to the present invention, by efficiently increasing the weight ratio of an organic polymer having the same composition, that is, nylon 6 or polyethylene terephthalate, to a specific ratio or more in all the constituent materials of the sheet-like material, the material can be efficiently recycled. It is possible to provide a sheet-like material capable of being used. Further, according to the present invention, it is possible to effectively use resources without generating harmful substances emitted at the time of disposal.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C08J 5/18 CFG C08J 5/18 CFG 11/10 11/10 // B29K 67:00 C08L 77:02

Claims (23)

[Claims] 1. A sheet-like material wherein at least 70% by weight of a sheet in which at least one surface of a base fabric is coated with a resin is made of an organic polymer having the same composition. 2. The fabric according to claim 1, wherein the base fabric is a woven or knitted fabric made of fibers.
The sheet material as described. 3. The sheet-like article according to claim 1, wherein the base fabric is a slit yarn of a film. 4. A sheet-like material comprising 70% by weight or more of an organic polymer having the same composition in a fibrous yarn-like cloth coated with a resin. 5. The sheet according to claim 1, wherein the content of the organic polymer having the same composition is 80% by weight or more. 6. A sheet according to claim 1, wherein said organic polymer is nylon 6. 7. The sheet according to claim 1, wherein the organic polymer is polyethylene terephthalate. 8. The sheet according to claim 1, wherein the coating on the base fabric is a film laminate. 9. The laminated sheet according to claim 1, wherein the coating on the base fabric is a coating. 10. The sheet according to claim 8, wherein the film laminate is bonded via an adhesive. 11. The method according to claim 1, wherein the adhesive is a urethane resin.
0 sheet-like material. 12. The sheet according to claim 8, wherein the film laminate is heat-bonded. 13. A polymer according to claim 1, wherein the degree of polymerization of the organic polymer of the base fabric is higher than the degree of polymerization of the polymer for coating.
A sheet-like material according to any one of the above. 14. The sheet according to claim 1, wherein at least one of the base fabric and the coating resin contains a flame retardant. 15. The sheet according to claim 10, wherein the adhesive contains a flame retardant. 16. The sheet according to claim 14, wherein the flame retardant does not contain a halogen element. 17. The sheet according to claim 2, wherein the fiber fabric is treated with a water repellent. 18. The method according to claim 1, wherein a water resistance measured according to JIS L-1092 5.1 (1) Water resistance test A method (low pressure method) is 1000 mmH ₂ O or more. A sheet-like material according to any of the above. 19. The sheet-like material according to JIS A-1322
The sheet-like material according to any one of claims 1 to 10, wherein the flame-proofing performance measured based on the above-mentioned grade passes the flame-proof second grade. 20. The sheet according to JIS A-8952.
The sheet according to any one of claims 1 to 11, which passes a flameproof test measured based on (1977). 21. A sheet-like material according to any one of claims 1 to 6 and 8 to 20, which is depolymerized to purify it as ε-caprolactam, and then polymerized to obtain a nylon 6 polymer. And the Recycling Law. 22. A recycling method comprising pulverizing, melting and extruding the sheet material according to any one of claims 1 to 20 to produce a film molded product. 23. The sheet-like article is made of a waterproof cloth, a tent, a hood,
Wall covering, canvas, curing sheet, curing mesh, container,
The recycling method according to claim 21 or 22, wherein the recycling method is at least one selected from a vehicle interior material, a curtain, a table cloth, and furniture.