Membrane body

Abstract

The invention discloses a membrane body. A membrane body comprising: a super-fiber layer comprising super-fibers; and a resin solvent layer formed so as to be in contact with the super-fiber layer and sandwich the super-fiber layer. The super fiber layer is subjected to at least one of a deoiling treatment and a hydrophilization treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of film bodies. Background Art

[0002] As such a film body, a film body made of ultra-fibers has been proposed (see Japanese Unexamined Patent Application Publication Nos. 2007-063710 and 2021-070788). Summary of the Invention

[0003] There is room for improvement in the technologies described in Japanese Unexamined Patent Application Publication Nos. 2007-063710 and 2021-070788.

[0004] The present invention provides a film body with high strength.

[0005] A mode of the present disclosure is a film body. The film body includes an ultra-fiber layer made of ultra-fibers, and a resin solvent layer formed in contact with and sandwiching the ultra-fiber layer. The ultra-fiber layer has been subjected to at least one of degreasing treatment and hydrophilization treatment.

[0006] In the film body according to the mode of the present disclosure, the resin solvent constituting the resin solvent layer may also be coated on the ultra-fiber layer.

[0007] In the film body according to the mode of the present disclosure, the resin solvent may also contain super engineering plastics.

[0008] In the film body according to the mode of the present disclosure, the ultra-fiber layer may also include at least two of a first filament, a second filament, and a third filament. The first filament may be a filament containing the ultra-fibers and extending in a first direction. The second filament may be a filament containing the ultra-fibers and extending in a second direction different from the first direction. The third filament may be a filament containing the ultra-fibers and extending in a third direction different from the first direction and the second direction. The at least two filaments may be intertwined with each other in a manner capable of suppressing changes in the relative positions of the at least two filaments, or the at least two filaments may be bound by at least one of a sewing filament and a melting filament in a manner capable of suppressing the changes in the relative positions of the at least two filaments.

[0009] In the film body according to the mode of the present disclosure, the ultra-fiber layer may also have a plurality of filaments containing the ultra-fibers and extending in one direction. The two adjacent filaments among the plurality of filaments may be intertwined with each other in a manner capable of suppressing changes in their relative positions.

[0010] In the film body according to the mode of the present disclosure, the tensile strength may be 51 to 64 N / mm, and the mass may be 45 to 55 g / m 2 . Brief Description of the Drawings

[0011] The features, advantages, and technical and industrial significance of exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings, in which like reference numerals represent like elements.

[0012] Figure 1 It is a diagram schematically showing the configuration of a film body related to an embodiment.

[0013] Figure 2 It is Figure 1 a sectional view taken along line II-II of

[0014] Figure 3 It is a flowchart showing the main part of a manufacturing method of a film body related to an embodiment.

[0015] Figure 4 It is a diagram showing an example of an inflatable kite.

[0016] Figure 5A It is a diagram schematically showing the configuration of a film body of a comparative example.

[0017] Figure 5B It is a diagram schematically showing the configuration of a film body of a comparative example.

[0018] Figure 6 It is a diagram for explaining a creep test.

[0019] Figure 7 It is a diagram showing an example of the result of a creep test.

[0020] Figure 8 It is a diagram for explaining a sewing slippage test.

[0021] Figure 9 It is a diagram showing an example of the result of a sewing slippage test.

[0022] Figure 10 It is a diagram for explaining a tearing test.

[0023] Figure 11 It is a diagram showing an example of the result of a tearing test.

[0024] Figure 12 It is a diagram showing an example of the result of a puncture test.

[0025] Figure 13 It is a diagram showing the relationship between the quality and tensile strength of a film body. Detailed Description of the Embodiments

[0026] Reference is made to Figures 1 to 13 describe the embodiments of the film body. In Figure 1In [the membrane body 10], the membrane body 10 includes: a super fiber layer 11 made of super fibers, and resin solvent layers 12 and 13 formed in such a manner as to contact and sandwich the super fiber layer 11.

[0027] (Structure of the membrane body 10)

[0028] As an example of super fibers, ultra-high molecular weight polyethylene (ultra-high molecular weight polyethylene fiber), para-aramid fiber, polyarylate fiber, PBO (poly-p-phenylene benzobis oxazole) fiber, carbon fiber, glass fiber, metal fiber, and ceramic fiber can be cited.

[0029] As Figure 2 shown, the super fiber layer 11 has: a plurality of filaments 11a extending in the first direction, and a plurality of filaments 11b extending in a second direction different from the first direction. The plurality of filaments 11a and 11b are filaments containing super fibers. As Figure 2 shown, the filaments 11a and 11b are intertwined with each other in such a manner as to be able to suppress the change in the relative positions of the filaments 11a and 11b. The fabric of filaments using super fibers can also be formed by intertwining the filaments 11a and 11b. That is to say, the super fiber layer 11 can be constituted by a fabric of filaments using super fibers. As an example of the fabric, plain weave, twill weave, and satin weave can be cited.

[0030] Furthermore, in addition to the plurality of filaments 11a extending in the first direction and the plurality of filaments 11b extending in the second direction, the super fiber layer 11 may also have one or more super fiber-containing filaments extending in a third direction different from the first and second directions. In this case, the filaments 11a, 11b, and the filaments extending in the third direction may also be intertwined with each other in such a manner as to be able to suppress the change in the relative positions of the filaments 11a, 11b, and the filaments extending in the third direction. In this case, the super fiber layer 11 may also be constituted by a fabric woven with the filaments 11a, 11b, and the filaments extending in the third direction.

[0031] Furthermore, the filaments 11a and 11b may also be bound by at least one of sewing filaments and fused filaments in such a manner as to be able to suppress the change in the relative positions of the filaments 11a and 11b. In this case, the filaments 11a and 11b may not be intertwined with each other. For example, the super fiber layer 11 may have a first layer composed of a plurality of filaments 11a and a second layer composed of a plurality of filaments 11b. Moreover, at least one filament 11a contained in the first layer and at least one filament 11b contained in the second layer may also be bound by at least one of sewing filaments and fused filaments. That is to say, the super fiber layer 11 may also be formed by binding the first layer and the second layer with at least one of sewing filaments and fused filaments.

[0032] Furthermore, when the super fiber layer 11 has filaments extending in the third direction in addition to the filaments 11a and 11b, at least two of the filaments 11a, 11b, and the filaments extending in the third direction may also be bound by at least one of the sewing filaments and the melting filaments. In this case, the filaments 11a, 11b, and the filaments extending in the third direction may not be intertwined with each other. For example, the super fiber layer 11 may have a first layer composed of a plurality of filaments 11a, a second layer composed of a plurality of filaments 11b, and a third layer composed of a plurality of filaments extending in the third direction. Moreover, at least two of at least one filament 11a contained in the first layer, at least one filament 11b contained in the second layer, and at least one filament contained in the third layer may also be bound by at least one of the sewing filaments and the melting filaments. That is to say, the super fiber layer 11 may also be formed by binding the first layer, the second layer, and the third layer with at least one of the sewing filaments and the melting filaments.

[0033] Furthermore, the super fiber layer 11 may have a plurality of filaments extending in one direction instead of the filaments 11a and 11b. These plurality of filaments are filaments containing super fibers. Furthermore, the one direction may be the same as any one of the above-mentioned first direction, second direction, and third direction, or may be a direction different from the first direction, second direction, and third direction. Two adjacent filaments among the plurality of filaments extending in one direction may also be intertwined with each other in such a way as to suppress the change in the relative positions of these two filaments. A knitted fabric (woven fabric) using filaments containing super fibers may also be formed by intertwining two adjacent filaments among the plurality of filaments extending in one direction. That is to say, the super fiber layer 11 may also be constituted by a knitted fabric using filaments containing super fibers. As an example of the knitted fabric, plain knitting, rib knitting, purl stitch, denbigh stitch, cord stitch, and atlas stitch can be cited.

[0034] The resin solvent layers 12 and 13 are formed by coating a resin solvent on the super fiber layer 11. That is to say, the super fiber layer 11 is coated with the resin solvent. Therefore, the resin solvent layers 12 and 13 may also be referred to as resin coatings. The resin solvent constituting the resin solvent layers 12 and 13 may also contain super engineering plastics. Furthermore, as an example of the super engineering plastics, polyamideimide, polyimide, polyphenylene sulfide, polysulfone, polyphenylsulfone, polyethersulfone, polyarylate, polyetherimide, polyetheretherketone, polyetherketone, polyetherketoneketone, polytetrafluoroethylene, perfluoroalkoxy alkane polymer, and liquid crystal polymer can be cited.

[0035] (Manufacturing method of the film body 10)

[0036] Refer to Figure 3The flowchart of [manufacturing method] illustrates the manufacturing method of the film body 10. The manufacturing method of the film body 10 includes a weaving process (step S101), a refining process (step S102), and a resin processing process (step S103). Furthermore, Figure 3 is a flowchart showing the main part of the manufacturing method 10 of the film body 10. Therefore, one or more other processes may exist before the weaving process. Similarly, one or more other processes may exist after the resin processing process.

[0037] In the weaving process of step S101, a super fiber layer 11 is formed using super fiber filaments. As described above, the super fiber layer 11 can be a fabric using super fiber filaments, or can be a knitted fabric. Alternatively, the super fiber layer 11 can also be formed by binding at least two super fiber filaments with at least one of a sewing filament and a melting filament. Furthermore, the super fiber filaments can be ply yarns or can be non-ply yarns.

[0038] In the refining process of step S102, a degreasing treatment is performed on the super fiber layer 11 formed in the weaving process. The degreasing treatment can be appropriately selected according to the super fiber used in the weaving process. Furthermore, as the degreasing treatment, various existing methods can be applied, so the details thereof are omitted.

[0039] In the resin processing process of step S103, a resin solvent is coated on the surface of the super fiber layer 11 after cleaning the oil agent (i.e., after degreasing) in the refining process. Resin solvent layers 12 and 13 are formed from the resin solvent coated on the surface of the super fiber layer 11.

[0040] In the resin processing process, at least one of a hydrophilization treatment and a substrate treatment can be performed on the super fiber layer 11 before coating the resin solvent on the surface of the super fiber layer 11. That is, the resin processing process can include at least one of a hydrophilization treatment process and a substrate treatment process, and a resin solvent coating process. Furthermore, as the hydrophilization treatment and the substrate treatment, various existing methods can be applied, so the details thereof are omitted. Furthermore, the substrate treatment can also be called a pretreatment.

[0041] Furthermore, the manufacturing method of the film body 10 may not include one of the refining process and the hydrophilization treatment process. That is, it is also possible not to perform one of the degreasing treatment and the hydrophilization treatment on the super fiber layer 11.

[0042] (Usage example of the film body 10)

[0043] The above-mentioned film body 10 can be used, for example, Figure 4 in the inflatable kite 1 shown. The inflatable kite 1 can be used, for example, in a tethered wind power generation system. For example, the inflatable tube 1a of the inflatable kite 1 is manufactured by bonding the film body 10 with an adhesive or sewing the film body 10 with a filament.

[0044] For example, air can be filled inside the inflatable tube 1a. At this time, the internal pressure of the inflatable tube 1a becomes higher than the atmospheric pressure. As a result, a relatively strong force is applied to at least one of the bonding part and the sewing part of the inflatable tube 1a. Therefore, for the film body 10, for example, relatively high creep resistance and slippage resistance are required. In addition, the inflatable kite 1 may sometimes fall. A relatively high puncture strength is required for the film body 10 so that the inflatable kite 1 does not break when the inflatable kite 1 falls.

[0045] (Evaluation of the film body 10)

[0046] The evaluation results of the test pieces (hereinafter appropriately referred to as "Examples") of the film body 10 manufactured by the above manufacturing method will be described. As the film body 10 of the example, it includes a super fiber layer 11 which is a fabric using super fiber filaments. The resin solvent layers 12 and 13 contain polyamideimide. The mass of the film body 10 as an example is 45 - 55 g / m 2 . Furthermore, the mass of the film body 10 as an example takes into account the fluctuations in the masses of multiple examples.

[0047] Refer to Figure 5A and Figure 5B , the film body 210 as Comparative Example 1 and the film body 220 as Comparative Example 2 which are compared with the film body 10 will be described. In Figure 5A , the film body 210 includes a fiber layer 211 and resin film layers 212 and 213 sandwiching the fiber layer 211. The fiber layer 211 is obtained by laminating a layer composed of multiple filaments extending in one direction and another layer composed of multiple filaments extending in another direction different from the one direction. Furthermore, the fiber layer 211 is formed using filaments of super fiber. The resin film layers 212 and 213 contain PET (polyethylene terephthalate). The mass of the film body 210 as Comparative Example 1 is 73 g / m 2 .

[0048] In Figure 5B , the film body 220 includes a fiber layer 221 which is a fabric and resin film layers 222 and 223 sandwiching the fiber layer 221. The fiber layer 221 is woven using filaments extending in one direction and filaments extending in another direction different from the one direction. Furthermore, the fiber layer 221 is formed using filaments of super fiber. The resin film layers 222 and 223 contain PET. The mass of the film body 210 as Comparative Example 2 is 82 g / m 2 .

[0049] (1) Creep test

[0050] As Figure 6As shown in the figure, a creep test was conducted on two test pieces bonded with an adhesive by applying a tensile load of 800 N in the arrow direction. The distance (length) in the length direction of the bonded test pieces was 200 mm, and the distance (width) in the width direction was 30 mm.

[0051] An example of the results of the creep test is shown in Figure 7 . The film body 210 of Comparative Example 1 broke after elongating more than 15 mm in about 8.7 hours. The film body 220 of Comparative Example 2 broke after elongating more than 40 mm in about 35 hours. In contrast, the film body 10 of the Example broke after elongating about 45 mm in about 110 hours. Therefore, it can be said that the film body 10 has higher creep resistance than the film bodies 210 and 220.

[0052] (2) Sewing slippage test

[0053] As shown in Figure 8 , a sewing slippage test was conducted on two test pieces sewn with a thread by applying a tensile force in the direction (refer to the arrow) crossing the direction in which the sewing thread penetrates the two test pieces. An example of the results of the sewing slippage test is shown in Figure 9 . Furthermore, if the thickness of the film body increases and / or the amount of fibers constituting the film body increases, the strength of the film body increases, and the mass of the film body increases. Figure 9 The sewing strength shown in 2 is a value obtained by dividing the strength measured in the test by the mass per square meter (g / m Figure 9 ) of the film body. That is to say,

[0054] According to the results of the film body 10 of Example 1 and the results of the film body 10 of Example 2, it can be said that the sewing strength of the film body 10 is 30 - 44 N / gsm when the tensile stroke is 7.5 - 12.5 mm. If the maximum values of the sewing strengths of the film body 10 of the Example, the film body 210 of Comparative Example 1, and the film body 220 of Comparative Example 2 are compared, it can be said that the strength of the film body 10 is about 3 times that of the film body 210, and the strength of the film body 10 is about 1.7 times that of the film body 220. Therefore, it can be said that the film body 10 has higher slippage resistance than the film bodies 210 and 220. Furthermore, the sewing strength can also be called the tensile load. Furthermore, the unit "gsm" means "g / m 2 ".

[0055] (3) Tear test

[0056] As shown in Figure 10 , a tear test was conducted on two test pieces sewn with a thread by applying a tensile force in the direction (refer to the arrow) in which the sewing thread penetrates the two test pieces. An example of the results of the tear test is shown in Figure 11 . Figure 11The sewing tear strength shown and Figure 9 The sewing strength shown are, in the same way, the strength measured in the test divided by the mass per square meter of the film body (g / m 2 ). That is to say, Figure 11 The sewing tear strength shown represents the strength per unit mass.

[0057] Based on the results of the film body 10 of Example 1 and the results of the film body 10 of Example 2, it can be said that the sewing tear strength of the film body 10 is 20 - 35 N / gsm when the tensile stroke is 3 - 6 mm. If the maximum values of the sewing tear strengths of the film body 10 as an example, the film body 210 as Comparative Example 1, and the film body 220 as Comparative Example 2 are compared, it can be said that the strength of the film body 10 is about 2.5 times that of the film bodies 210 and 220. Furthermore, the sewing tear strength can also be called the anti-tearing load.

[0058] (4) Puncture test

[0059] A puncture test is performed on the test piece by puncturing it with a 1 - mm - diameter needle at a speed of 20 inches per minute. An example of the results of the puncture test is shown in Figure 12 . Figure 12 The puncture strength shown and Figure 9 The sewing strength shown are, in the same way, the strength measured in the test divided by the mass per square meter of the film body (g / m 2 ). That is to say, Figure 12 The puncture strength shown represents the strength per unit mass.

[0060] Based on the results of the film body 10 of Example 1, the results of the film body 10 of Example 2, the results of the film body 10 of Example 3, and the results of the film body 10 of Example 4, it can be said that the puncture strength of the film body 10 is 0.6 - 0.8 N / gsm when the puncture stroke is 2 - 3 mm. The average value of the puncture strength of the film body 10 as an example is 0.73 N / gsm. The average value of the puncture strength of the film body 210 as Comparative Example 1 is 0.44 N / gsm. Therefore, it can be said that the puncture strength of the film body 10 is higher than that of the film body 210. Furthermore, the puncture strength can also be called the anti - puncture load.

[0061] (5) Fiber shedding test

[0062] A fiber shedding test was conducted on a test piece with one end bonded to a metal (such as stainless steel), where a load of 130 N was applied to stretch the test piece in the length direction. Here, when the test piece was damaged along with fracture, cracks occurred in the resin layer (such as resin solvent layers 12 and 13), and the resin layer and the fiber layer (such as the super fiber layer 11) were peeled off and / or the pulled-off of the broken fibers occurred. The fiber shedding test is a test for measuring the time until the pulled-off of the broken fibers occurs. For the film body 10 of the example, no fiber pulled-off occurred even after 10 hours from the start of the test.

[0063] (6) Tensile strength measurement

[0064] Tensile strength measurements were carried out on multiple film bodies 10 as examples. In the tensile strength measurement, each test piece was measured 3 times, and the average value was taken as the tensile strength. The measurement results are shown below. Furthermore, the tensile strength represents the strength per unit width.

[0065] Table 1

[0066]

[0067] Here, the fluctuation of the 3 measurement results for each test piece was from +6.4% to -3.9%. Considering the fluctuation, it can be said that the tensile strength of the film body 10 as an example was 51 - 64 N / mm. The tensile strength of the film body 210 as Comparative Example 1 was 44.6 N / mm, and the tensile strength of the film body 220 as Comparative Example 2 was 50.0 N / mm.

[0068] As described above, if the thickness of the film body increases and / or the amount of fibers constituting the film body increases, the strength of the film body becomes higher, and the mass of the film body increases. Therefore, the strength of the film body with a relatively heavy mass becomes relatively high. Therefore, considering the mass of the film body, the tensile strengths of the film body 10 as an example, the film body 210 as Comparative Example 1, and the film body 220 as Comparative Example 2 were compared.

[0069] As described above, the mass of the film body 10 as an example was 45 - 55 g / m 2 . The mass of the film body 210 as Comparative Example 1 was 73 g / m 2 . The mass of the film body 210 as Comparative Example 2 was 82 g / m 2 . Considering the mass, it can be said that the tensile strength of the film body as an example was about 2 times higher than the tensile strengths of the film body 210 as Comparative Example 1 and the film body 220 as Comparative Example 2.

[0070] Refer to the Figure 13 showing the relationship between the mass and the tensile strength of the film body for explanation. In Figure 13In [reference], the tensile strength considering the mass of the film body is represented by the slopes of the solid line, dashed line, and dotted line shown in Figure 13 [reference]. As shown by the solid line and dashed line in Figure 13 [reference], the film body 10 as an example has a lighter mass and a higher tensile strength compared to the film body 210 as Comparative Example 1 and the film body 220 as Comparative Example 2. That is to say, it can be said that the film body 10 is a film body that is both light and strong.

[0071] For example, if the fiber density of the ultra-fiber layer 11 of the film body 10 is increased, the mass of the film body 10 increases, and the tensile strength of the film body 10 becomes higher. On the other hand, if the fiber density of the ultra-fiber layer 11 is decreased, the mass of the film body 10 decreases, and the tensile strength of the film body 10 becomes lower. In such a case, the mass and tensile strength of the film body 10 change along the Figure 13 solid line shown in [reference]. Therefore, the film body 10 is not limited to a film body with a tensile strength of 51 - 64 N / mm and a mass of 45 - 55 g / m 2 .

[0072] (Technical Effect)

[0073] The affinity of the ultra-fiber for water is relatively low. Therefore, if no countermeasures are taken and a resin solvent is coated on the ultra-fiber layer 11, the adhesion strength between the ultra-fiber layer 11 and the resin solvent becomes relatively low. In contrast, in the present embodiment, at least one of a degreasing treatment and a hydrophilization treatment is performed on the ultra-fiber layer 11. Therefore, according to the present embodiment, the adhesion strength between the ultra-fiber layer 11 and the resin solvent can be improved. As a result, the peeling of the ultra-fiber layer 11 and the resin can be suppressed, and thus the strength of the film body 10 can be improved. That is to say, according to the present embodiment, a high-strength film body 10 can be provided.

[0074] When a resin solvent is coated on the ultra-fiber layer 11, compared with the case of sandwiching the ultra-fiber layer 11 with a resin film, the contact area between the surface of the ultra-fiber layer 11 and the resin can be increased. That is to say, according to the present embodiment, compared with the case of sandwiching the ultra-fiber layer 11 with a resin film, the adhesion strength between the surface of the ultra-fiber layer 11 and the resin can be improved. As a result, the peeling of the ultra-fiber layer 11 and the resin can be suppressed, and thus the strength of the film body 10 can be improved.

[0075] The relative positional relationship between the filaments constituting the ultra-fiber layer 11 becomes difficult to change due to the resin solvent. For example, the occurrence of fiber deviation of the ultra-fiber layer 11 caused by sewing filaments can be suppressed. Therefore, according to the present embodiment, the sewing strength of the film body 10 can be improved.

[0076] The ultra-fiber layer 11 can be a fabric or a knitted fabric of ultra-fiber filaments. Alternatively, the ultra-fiber layer 11 can be formed by binding multiple fiber layers with at least one of sewing filaments and melting filaments. If configured in this way, the relative positional relationship between the filaments constituting the ultra-fiber layer 11 becomes difficult to change. In this case, for example, the sewing strength of the film body 10 can also be improved.

[0077] As described above, the film body 10 has relatively high creep resistance, slippage resistance, and puncture strength, for example. Therefore, it can be said that the film body 10 is suitable as a material for the inflatable kite 1. In particular, the film body 10 is lighter than other film bodies (such as film bodies 210 and 220) of the same strength. Therefore, if the film body 10 is used to manufacture the inflatable kite 1, it is possible to simultaneously achieve high strength and light weight of the inflatable kite 1.

[0078] The following describes an aspect of the present disclosure derived from the embodiments described above.

[0079] A film body according to an aspect of the present disclosure is a film body including an ultra-fiber layer made of ultra-fibers and a resin solvent layer formed in contact with and sandwiching the ultra-fiber layer, and the ultra-fiber layer has been subjected to at least one of degreasing treatment and hydrophilization treatment.

[0080] In this film body, the resin solvent constituting the resin solvent layer can be coated on the ultra-fiber layer. Here, the resin solvent can contain super engineering plastics.

[0081] In this film body, the ultra-fiber layer can have at least two of the following: filaments including the ultra-fibers extending in a first direction, filaments including the ultra-fibers extending in a second direction different from the first direction, and filaments including the ultra-fibers extending in a third direction different from the first direction and the second direction. The at least two filaments can be intertwined with each other in a manner capable of suppressing changes in the relative positions of the at least two filaments, or the at least two filaments can be bound by at least one of sewing filaments and melting filaments in a manner capable of suppressing changes in the relative positions of the at least two filaments.

[0082] Alternatively, in this film body, the ultra-fiber layer can have multiple filaments including the ultra-fibers and extending in one direction. The two filaments adjacent to each other among the multiple filaments can be intertwined with each other in a manner capable of suppressing changes in the relative positions of the two filaments.

[0083] This film body can have a tensile strength of 51 to 64 N / mm and a mass of 45 to 55 g / m 2 .

[0084] The present disclosure is not limited to the above-described embodiments, and can be appropriately modified within the scope not violating the gist or spirit of the present disclosure read from the entire claims and the specification. The film body accompanied by such modifications is also included in the technical scope of the present disclosure.

Claims

1. A film body, characterized in that, Comprising: A super fiber layer made of super fibers; and The resin solvent layer formed in such a manner as to contact the super fiber layer and sandwich the super fiber layer between the resin solvent layers, wherein the super fiber layer is subjected to at least one of defatting treatment and hydrophilization treatment.

2. The film body according to claim 1, characterized in that The resin solvent constituting the resin solvent layer is coated on the super fiber layer.

3. The film body according to claim 2, characterized in that The resin solvent contains super engineering plastics.

4. The film body according to claim 1, characterized in that The super fiber layer has at least two of the first filament, the second filament, and the third filament, The first filament is a filament containing the super fiber and extending in the first direction, The second filament is a filament containing the super fiber and extending in a second direction different from the first direction, The third filament is a filament containing the super fiber and extending in a third direction different from the first direction and the second direction, The at least two filaments are intertwined with each other in such a manner as to be able to suppress the change in the relative positions of the at least two filaments, or the at least two filaments are bound by at least one of a sewing filament and a melting filament in such a manner as to be able to suppress the change in the relative positions of the at least two filaments.

5. The film body according to claim 1, characterized in that The super fiber layer has a plurality of filaments containing the super fiber and extending in one direction, and The adjacent two filaments of the plurality of filaments are intertwined with each other in such a manner as to be able to suppress the change in the relative positions of the adjacent two filaments.

6. The film body according to any one of claims 1 to 5, characterized in that The tensile strength of the membrane body is 51 to 64 N / mm, and the mass is 45 to 55 g / m 2 .

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