JP6929533B2 - Flexible membrane material for industrial materials - Google Patents

Description

The present invention relates to seat shutter devices, flexible container bags, tents, etc., and flexible membrane materials for industrial materials such as partitions, floor sheets, equipment covers, aprons, etc., mainly for clean rooms, and is particularly installed at entrances and exits of factories, warehouses, etc. A flexible membrane material used in automatic elevating and lowering seat shutter devices, which has low winding / unwinding noise (seat peeling noise), is less likely to generate static electricity, and maintains excellent static electricity elimination properties. The present invention relates to a flexible film material that does not impair visibility.

At the entrances and exits of factories and warehouses, a seat shutter device that automatically opens and closes the entrances and exits is provided because the work of loading and unloading luggage by forklifts, transfer robots, and transfer drones is frequently performed. As these sheet shutter devices, automatic opening / closing type sheet shutter devices are used in food factories, chemical factories, precision equipment factories, etc. as clean room specifications and insect / dustproof specifications in consideration of antistatic property and insect pest prevention property. In particular, in food factories, automatic opening and closing type sheet shutters are also provided at the connection ports between the freezing room, the refrigerating room, and the processing room to control the temperature and air cleanliness of each area. In addition, these sheet shutter devices are often used in isolated spaces of general hospitals and research facilities.

These seat shutter devices detect the approach of a person or a vehicle by a sensor, so that the seat film material is mechanically rolled up and opened, and immediately after the passage of a person or a vehicle, the sheet film material is lowered and closed. In particular, by making the membrane material a flexible membrane material that can be repeatedly wound and unwound, it can be compactly stored in the state of a sheet winder on the upper part of the shutter device, which makes it possible to install the shutter device in a space-saving manner. do. As the sheet film material suitable for these shutter devices, a coarse woven fabric made of synthetic fibers is used as a substrate for imparting morphological stability and breaking strength, and a film material coated with a thermoplastic resin sheet is used. In the above, polyester threads of about 1111 to 2222 dtex are used as warp and weft, and coarse plain woven fabric woven with a warp and weft driving density of about 2 to 6 threads / inch is used as a reinforcing core material, and the thickness is 0 on both sides. A flexible film material obtained by laminating and adhering a soft vinyl chloride resin transparent sheet of about 2 to 0.5 mm is generally used.

However, with these synthetic resin sheet film materials, the operating noise during high-speed opening and closing is annoying, and the problem that the sheet peeling noise during unwinding is particularly noisy, and at the same time, static electricity is generated due to the sheet peeling during unwinding. The sheet film material, which is easy to use and charged, has problems of dust contamination that attracts foreign substances such as dust and pollen, and causes problems such as volatilization of organic solvents and scattering of dust, which may cause ignition or explosion in a closed environment. Therefore, as a countermeasure against static electricity charging of synthetic resin sheet film materials that require visibility, conductive paint (carbon black, graphite, silver, tin oxide, etc.) is applied to one or both sides of the vinyl chloride resin sheet used for partitioning for clean rooms. (Including) has been proposed to be printed in an arbitrary continuous pattern (Patent Documents 1 and 2). According to the present invention, conductivity is exhibited in a continuous pattern printing portion, and visibility is maintained in a portion other than the continuous pattern printing portion. Good visibility can be obtained if the continuous pattern printing portion is made of a transparent sheet, but when applied to a sheet film material for a sheet shutter device, a woven fabric base material present in the entire sheet film material. It is inevitable that it interferes with the visibility and does not solve the peeling noise of the sheet. As a measure against static electricity that does not impair visibility, it is conceivable to provide a printing portion in a continuous pattern that synchronizes with the weaving structure of the woven fabric base material, but the woven fabric base material shrinks in the manufacturing process of the sheet film material for the sheet shutter device. Due to irregular dimensional distortion of the woven structure, such as distortion in the width direction due to tension during manufacturing, it is difficult to ensure visibility because the continuous pattern printing portion is not synchronized. Further, in the case of black printing patterns such as carbon black and graphite, there is a problem that the black pattern violently moves up and down by the movement of opening and closing the seat shutter, which causes motion sickness stress to the worker each time. In addition, the applicant has provided two metal thin film layers on the base cloth (coarse fiber woven fabric) as a film material for a sheet shutter which has light collection property and interpersonal recognition property and also has antistatic property and antibacterial property. , And proposed a light-transmitting composite sheet (Patent Document 3) having a thermoplastic resin coating layer on both sides thereof. It is true that this sheet film material has both interpersonal recognition and antistatic properties, but the antistatic properties are wound by the generation of fatigue tears in the metal thin film layer after winding / unwinding more than 100,000 times. It was different between the time and the time of unwinding, and there was a problem that the antistatic property became unstable. In addition, countermeasures against static electricity by blending or applying organic compounds such as surfactants do not provide sufficient static electricity elimination in dynamic applications where static electricity is repeatedly applied, and bleed out from the sheet membrane material over time, reducing static electricity elimination. Has the drawback of Further, in the method of imparting conductivity to the woven fabric by mixing the metal wire and the metal-plated wire, there is a problem that the thickness and rigidity of the sheet film material are increased and the winding and storing property in the upper part of the sheet device is deteriorated. Therefore, a flexible film material for a sheet shutter device that has low winding / unwinding noise (sheet peeling noise), is unlikely to generate static electricity, and does not hinder visibility while stably maintaining excellent static electricity elimination properties. It didn't exist.

JP-A-54-29378 JP-A-11-58630 Japanese Unexamined Patent Publication No. 2012-7425

The present invention has been made in view of the above-mentioned conventional circumstances, and the subject matter thereof are a seat shutter device, a flexible container bag, a tent, etc., and a partition, a floor sheet, an equipment cover, an apron, etc. mainly for a clean room. Among the flexible membrane materials for industrial materials, especially the flexible membrane material used for the automatic elevating seat shutter device installed at the entrance and exit of factories, warehouses, etc., the winding / winding noise (seat peeling noise) is small, and Moreover, it is an object of the present invention to provide a flexible film material which is less likely to generate static electricity and which does not hinder visibility while stably maintaining excellent static elimination property.

The flexible film material for industrial materials of the present invention uses a coarse woven fabric as a base material, the entire surface of which is coated with a thermoplastic resin, and a mesh sheet having a large number of through holes as a base material, and the entire surface surface of the base material is used as a base material. A flexible composite laminate having a front surface transparent resin layer provided on the substrate and a back surface transparent resin layer provided on the entire back surface of the substrate, wherein the through holes are the front surface transparent resin layer and the back surface transparent resin layer. A recessed resin closure having a depth of 0.05 mm to 0.5 mm is formed by laminating, and the area of each of the recessed resin ^{closures is 36 mm 2 to 225 mm 2} , and the above is possible. The total occupancy of the recessed resin closure in the flexible composite laminate is 65 to 75%, and at least on one side of the flexible composite laminate, the entire region except the recessed resin closure is covered. It is preferable that a convex conductive network is formed by a composition layer containing carbon nanotubes, or a composition layer containing a π-electron-conjugated conductive polymer and carbon nanotubes. By this technical means, in the automatic elevating seat shutter device installed at the entrance and exit of factories, warehouses, etc., winding / unwinding noise (seat peeling noise) is small, static electricity is unlikely to occur, and it is excellent. It is possible to obtain a flexible film material that stably maintains static electricity elimination properties and does not impair visibility.

Flexible membrane material for industrial materials present invention, the one area per is 36 mm ² ~225mm ² resin blocking portion, and the flexible composite total occupancy of the resin occlusion in the laminate is from 65 to 75 It is preferably%. As a result, it is possible to achieve a good balance between winding / unwinding sound (sheet peeling noise), static electricity elimination, and visibility.

In the flexible film material for industrial materials of the present invention, the π-electron conjugated conductive polymer is polypyrrole, polythiophene, polyacetylene, polyphenylene, polyphenylene vinylene, polyaniline, polyacene, polythiophene vinylene, and these. It is preferably one or more selected from the copolymers. As a result, static electricity generated when the automatic lifting / lowering seat shutter is repeatedly wound / unwound can be removed / mitigated.

In the flexible film material for industrial materials of the present invention, the carbon nanotubes are single-walled carbon nanotubes, double-walled carbon nanotubes, multi-walled carbon nanotubes, and shortened carbon nanotubes having a diameter of 1.4 nm to 15 nm and a length of 1.5 μm to 300 μm. , Carbon oxide nanotubes, and functionalized carbon nanotubes (terminal modification and / or side wall modification) are preferably one or more. As a result, static electricity generated when the automatic lifting / lowering seat shutter is repeatedly wound / unwound can be removed / mitigated.

The method for producing a flexible film material for industrial materials of the present invention is as follows: 1) A coarse woven fabric is used as a base material, the entire surface thereof is coated with a thermoplastic resin, and a mesh sheet having a large number of through holes is used as the base material. A flexible composite laminate is produced by providing a front surface transparent resin layer on the entire surface surface of the substrate and a back surface transparent resin layer on the entire back surface surface of the substrate, and the through holes are thermally softened by the front surface resin layer and the back surface resin layer. A step of forming a resin closed portion filled by laminating into a recessed portion having a depth of 0.05 mm to 0.5 mm.
2) At least on one side of the flexible composite laminate, a) a thin film layer made of a composition containing a π-electron conjugated conductive polymer in a non-depressed region (top surface of a convex region) excluding the resin closure. And b) Convex conductive networks made of any one or more of thin film layers made of a composition containing carbon nanotubes, transferred from a patternless gravure roll, or printed by a patternless rotary screen, flexographic printing, and offset printing. It is preferable to include a step of forming by the selected printing means. By this method, in an automatic elevating seat shutter device installed at an entrance / exit of a factory, a warehouse, etc., winding / unwinding noise (seat peeling noise) is small, static electricity is unlikely to be generated, and excellent static electricity elimination. It is possible to obtain a flexible film material that stably maintains the property and does not impair visibility.

In the method for producing a flexible film material for industrial materials of the present invention, the flexible composite laminate is produced by a laminator having at least one pair of metal thermal rolls / rubber rolls, and the side surface of the rubber roll is used for the surface transparent resin layer. By arranging the film and passing the film for the back surface transparent resin layer so as to be arranged on the side surface of the metal thermal roll, a recessed shape having a depth of 0.05 mm to 0.5 mm is formed on the surface side of the front surface transparent resin layer. It is preferable to form the resin blocking portion.

In the method for producing a flexible membrane material for industrial materials of the present invention, the area of each resin closure is 36 mm ^{2 to} 225 ^{mm 2} , and the total occupancy of the resin closure in the flexible composite laminate is It is preferably 65 to 75%. As a result, it is possible to achieve a good balance between winding / unwinding sound (sheet peeling noise), static electricity elimination, and visibility.

In the method for producing a flexible film material for industrial materials of the present invention, the π-electron conjugated conductive polymer is a polypyrrole, a polythiophene, a polyacetylene, a polyphenylene, a polyphenylene vinylene, a polyaniline, a polyacene, a polythiophenine. Single-walled carbon nanotubes, double-walled carbon nanotubes, and multi-walled carbon nanotubes having a diameter of 1.4 nm to 15 nm and a length of 1.5 μm to 300 μm. It is preferably one or more selected from carbon nanotubes, shortened carbon nanotubes, carbon oxide nanotubes, and functionalized carbon nanotubes (terminal modification and / or side wall modification). As a result, static electricity generated when the automatic lifting / lowering seat shutter is repeatedly wound / unwound can be removed / mitigated.

The flexible film material for industrial materials according to the present invention has low winding / unwinding noise (sheet peeling noise), is less likely to generate static electricity, and has excellent visibility while stably maintaining excellent static electricity elimination properties. Therefore, it can be used not only as a flexible film material for a seat shutter device, but also as a flexible container bag, a tent, etc., and also as a partition, a floor sheet, an equipment cover, an apron, etc. mainly for a clean room.

Front view showing an example of the substrate of the flexible film material for industrial materials of the present invention. Front view showing an example of a flexible composite laminate of the flexible film material for industrial materials of the present invention. Front view showing an example of the flexible film material for industrial materials of the present invention. Enlarged view of the cross section showing an example of the flexible film material for industrial materials of the present invention.

The flexible membrane material for industrial materials of the present invention uses a coarse woven fabric as a base material, and the entire surface thereof is coated with a thermoplastic resin, and a mesh sheet having a large number of through holes is used as a base material on both sides of the base material. A flexible composite laminate having a transparent resin layer provided, wherein through holes are filled with a transparent resin layer to form a recessed resin closure portion, and at least on one side of the flexible composite laminate. It is an invention devised so that a specific convex conductive network is formed in the entire region except the recessed resin blockage.

The coarse woven fabric used for the base (mesh sheet) portion of the flexible film material for industrial materials of the present invention is a plain woven fabric, a basket woven fabric, a twill woven fabric, a red woven fabric, and a misa woven fabric woven by a warp and weft group. , Woven fabrics such as woven fabrics (gauze woven fabrics, woven fabrics), and coarse woven fabrics with a void ratio of 35 to 75%, especially 40 to 60%, due to Russell knitting, lace knitting, etc. It is preferable to use a gauze woven fabric or the like because it has an excellent balance between the mechanics of the flexible film material for industrial materials, mechanical properties, dimensional stability, and visibility. In addition, the warp yarn group, the upper right bias yarn group and the upper left bias yarn group are included, and the void ratio of the triaxial plain woven fabric, the triaxial basket woven fabric, the triaxial imitation woven fabric, etc. by these yarn groups is 35 to 75%, in particular. It may be a coarse woven fabric of 40 to 60%, and further includes a warp yarn group, a weft yarn group, an upper right bias yarn group and an upper left bias yarn group, and a quadrilateral flat woven fabric or a quadruped basket woven fabric by these yarn groups. , A coarse woven fabric having a void ratio of 35 to 75%, particularly 40 to 60%, may be obtained from a quadrilateral imitation woven fabric or the like.

The yarns constituting the coarse woven fabric include multifilament yarn, short fiber spun yarn, covering yarn (multifilament yarn as core component: short fiber spun yarn as sheath component), and monofilament yarn (core sheath composition). , Etc. are suitable for use, in particular using multifilament yarns having a number of filaments of 100 to 600 and a fineness of 555 to 3336 dtex, particularly 833 to 2220 dtex, or using two or three in a row, or two or It is preferably used in the form of a combined twisted yarn of three yarns. Fiber types are polypropylene, polyethylene, polyester (polyethylene terephthalate, polyethylene naphthalate, polybutylene terephthalate, etc.), nylon, vinylon, acrylic, aromatic polyester type, aromatic polyamide type, aromatic heterocyclic polymer (polybenzoimidazole type). , Polybenzoxazole-based, polybenzothiazole-based, etc.) synthetic fibers, mixed fibers thereof, core-sheath fibers, and the like. In particular, flexible film materials for industrial materials can be used alone by using high-strength fiber yarns made of aromatic polyesters, aromatic polyamides, aromatic heterocyclic polymers, etc., or by using them in combination with other synthetic fiber yarns at equal intervals. Enhances strong resistance to perforation breakage. Further, in particular, by using the conductive yarns at equal intervals in combination with other synthetic fiber yarns, the effect of preventing static electricity of the flexible membrane material for industrial materials can be exhibited. Conductive threads are threads made of metal fibers such as copper, stainless steel, nickel chrome, and tin-plated copper, carbon fibers, and synthetic fibers such as polyester and nylon with metal plating or metal deposition such as silver, copper, and copper nickel. It may be any of a strip or a composite yarn such as a spun yarn, a twisted yarn (combined twist), and a covering yarn made of synthetic fibers and metal fibers.

In the knitted structure of a coarse woven fabric, the number of warp and weft threads to be driven is 1 to 8 per inch (2.54 cm) in both the warp and weft directions, and particularly 2 to 6 are driven into the coarse woven fabric (mass 10 g). / ^{M 2 to} 200 g / m ² ) is preferable, and the number of warp threads and bias threads to be driven is 0.5 to 5 per inch (2.54 cm) in both the warp direction and the bias direction, particularly 1 to 3 threads. crowded in triaxial coarse fabric (weight ^{10g / m 2 ~200g / m 2} ) is preferably obtained, also warp Article weft Article and end counts are warp direction of the bias yarns, one inch weft direction and the bias direction both ( ^{A quadrilateral coarse woven fabric (mass 10 g / m 2 to} 200 g / m ² ) obtained by driving 0.5 to 5 pieces per 2.54 cm), particularly 1 to 3 pieces, is preferable. These coarse woven fabrics are composed of a solid portion occupied by the threads and a gap formed between the threads, and the number thereof is 4 to 36 pieces, preferably 6 to 15 pieces per 1 inch square area, and the coarse woven fabric is used. The total occupancy rate of the solid part is 35 to 75% with respect to the unit area of (for example, 1 inch vertical x 1 inch horizontal square) (the total occupancy rate of the void part is 35 to 75% with respect to the unit area of the coarse woven fabric). The range of 40 to 60% (the total void ratio is 40 to 60%) is particularly suitable. The strength of the flexible film material for industrial materials obtained when the total sum of the solid parts of the coarse woven fabric is less than 35% (the total sum of the voids exceeds 75%) and the dimensional stability against stress when raising and lowering the sheet shutter become insufficient, and the sheet becomes insufficient. The shutter may be deformed. Further, when the total sum of the solid parts of the coarse woven fabric exceeds 75% (the total sum of the void parts is less than 35%), not only the texture of the flexible film material for industrial materials obtained becomes hard, but also the daylighting property and the interpersonal distinctiveness are deteriorated. As mentioned above, these coarse woven fabrics are particularly water-repellent (fluorine atom-containing compounds, silicone compounds, paraffins) to prevent rainwater from entering from the cross section of multifilament threads due to the capillary phenomenon and thereby prevent the formation of mold. (Compounds, etc.), flameproof treatment (phosphate ester compound, phosphonic acid compound, etc.) to impart self-extinguishing property at the time of ignition, or improved adhesion to the front surface transparent resin layer and back surface transparent resin layer. Adhesive treatment (coating of a thermoplastic resin composition, coating of a thermoplastic resin composition containing a reactive compound such as polyisocyanate) can be performed.

The substrate (mesh sheet) of the flexible film material for industrial materials of the present invention covers both surfaces of the coarse woven fabric, that is, the entire circumference of the threads constituting the coarse woven fabric with a colored thermoplastic resin, or the threads are colored thermoplastic. It is a mesh sheet having a large number of through holes, which is impregnated and coated with a resin, and the through holes are derived from the voids of the coarse woven fabric. Coloring is arbitrary, but in order to obtain good visibility from the outside to the inside, the Munsell lightness (JIS Z8721: 1993) of the colored thermoplastic resin should be 4 or less (the closer it is to Munsell lightness 1, the closer it is to black). It is preferable to use a dark color mesh sheet. Colored thermoplastic resins are soft vinyl chloride resin, vinyl chloride copolymer resin, olefin resin (PE, PP, etc.), olefin copolymer resin, urethane resin, urethane copolymer resin, acrylic resin, acrylic resin. Pigments known for thermoplastic resins such as copolymer resins, styrene resins, styrene-based copolymer resins, polyester resins, polyester-based copolymer resins, fluorine-containing copolymer resins, silicone resins, and silicone-based copolymer resins. Can be exemplified as a composition containing the above (paste state, emulsion state, state dissolved in a solvent, etc.). In order to obtain good visibility from the outside to the inside, at least the surface hue of the mesh sheet substrate is Munsell lightness (JIS Z8721: 1993) 4 or less, preferably Munsell lightness 1-2, and further Munsell saturation (JIS Z8721: 1993). JIS Z8721: 1993) 6 or more (the closer the Munsell saturation is to 10, the brighter the color becomes) is preferable. If the hue of the surface is Munsell brightness of 4.5 or more and Munsell saturation of 5.5 or less, grasp the indoor environment when looking into the dimly lit indoors through the sheet from the bright outdoors, identify the person's face through the sheet, and the article. May be difficult to identify. Specific examples of dark colors that simultaneously satisfy Mansell lightness of 4 or less and Mansell saturation of 6 or more are black, black gray, black brown, black green, black blue, black purple, dark blue, dark green, tan oil, blue, and so on. Examples include green, red, and gray. These hues are obtained by coloring a thermoplastic resin by using a known inorganic pigment and an organic pigment alone or in combination of a plurality of known inorganic pigments and organic pigments. In particular, the flexible film material for industrial materials of the present invention preferably has a Munsell lightness of 4 or less and a Munsell saturation of 6 or more on both the front and back surfaces, but only the back surface has a Munsell lightness of 4.5 or more and a Munsell saturation of 5. It may have a two-tone configuration of 5 or less. With such a two-tone mesh sheet, for example, if the front surface is black and the back surface is white, the back surface of the sheet, which has an indoor appearance, is white, so that the internal environment of a warehouse or factory building can be given a bright impression. Further, a photographic image, an illustration, a character pictogram, etc. are printed on a part of the surface of the substrate (mesh sheet) by a known printing technique, for example, inkjet printing, and an evacuation guidance effect, a decoration effect, an advertising effect, etc. are attached. You can also do it.

The coating thickness of the colored thermoplastic resin that covers the entire circumference of the threads constituting the coarse woven fabric is preferably 0.01 mm to 0.5 mm, particularly preferably 0.05 mm to 0.25 mm. In particular, the preferred thermoplastic resin in the present invention is a soft vinyl chloride resin composition (composition containing a vinyl chloride resin, a plasticizer, a stabilizer, a filler, a flame retardant, a pigment, etc.). The plasticizers used in the soft vinyl chloride resin composition are phthalic acid ester plasticizers such as DOP (DEHP), DINP, DIDP and DBP, adipic acid ester plasticizers such as DOA (DEHA) and DINA, and sebacic acid esters. System plasticizers, trimellitic acid ester-based plasticizers such as TOTM, pyromellitic acid ester-based plasticizers, polyester-based plasticizers, phosphate-based plasticizers such as TCP, citric acid-based plasticizers, ethylene CO vinyl acetate-based plasticizers Known plasticizers such as polymer plasticizers and ethylene CO acrylic acid ester-based plasticizers can be exemplified, but the anxiety factors such as health hazards and genetic effects that the use of phthalate ester-based plasticizers have on the human body can be exemplified. If consideration is given, it is particularly preferable to use a non-phthalate ester-based plasticizer in combination, and specifically, these are isophthalic acid dialkyl esters, terephthalic acid dialkyl esters, 1,2-cyclohexanedicarboxylic acid dialkyl esters, and 4 One or more plasticizers selected from −cyclohexene-1,2-dicarboxylic acid dialkyl esters can be exemplified.

In the flexible film material for industrial materials of the present invention, the thermoplastic resin used for both the surface transparent resin layer provided on the entire surface surface of the mesh sheet substrate and the back surface transparent resin layer provided on the entire back surface of the mesh sheet substrate is Soft vinyl chloride resin, vinyl chloride copolymer resin, olefin resin (PE, PP, etc.), olefin copolymer resin, urethane resin, urethane copolymer resin, acrylic resin, acrylic copolymer resin, styrene Examples thereof include resins, styrene-based copolymer resins, polyester resins, polyester-based copolymer resins, and thermoplastic resins such as fluorine-containing copolymer resins. The front surface transparent resin layer and the back surface transparent resin layer are a transparent film having a thickness of 0.1 mm to 0.5 mm or a thickness of 0.51 mm to 0.5 mm, which is obtained by processing these thermoplastic resins by calendar molding, T-die extrusion molding, or the like. A 2.5 mm transparent sheet or the like can be used. The flexible film material for industrial materials of the present invention is produced by a laminator having at least one pair of metal thermal rolls / rubber rolls using the mesh sheet described in paragraphs [0018] to [0022] as a substrate, and the surface is transparent on the side surface of the rubber roll. By passing the film for the resin layer and the film for the back surface transparent resin layer so as to be arranged on the side surface of the metal thermal roll, laminating and integrating in a heat-softened state, and cooling and solidifying, 0. A manufacturing method for forming a recessed resin closure portion having a depth of 05 mm to 0.5 mm is preferable. As described above, the step of forming the resin closed portion formed by laminating the front surface transparent resin layer and the back surface transparent resin layer in a depressed shape is included, and the area per resin closed portion is 36 mm ^{2 to 225 mm. 2.} The total occupancy of the resin closed portion in the flexible composite laminate is preferably 65 to 75%. If the area per resin closure is less than 36 mm ² and / or the total occupancy is less than 65 %, the visibility is deteriorated ^{, and if it exceeds 225 mm 2} and / or the total occupancy is more than 75%, the sheet. The dimensional stability of the (seat shutter) may deteriorate. In this flexible composite laminate, the solid portion occupied by the threads is composed of a heat surface transparent resin layer / coarse woven fabric / back surface transparent resin layer, and a gap portion (depressed shape) formed between the threads is formed. The resin closure portion) is an integral body of the front surface transparent resin layer / the back surface transparent resin layer. At least on the surface side of the film material, the difference in thickness between the solid portion (other than the resin closure portion) and the resin closure portion is preferably 0.05 mm to 0.5 mm, particularly preferably 0.1 mm to 0.3 mm. If it is less than 0.05 mm, it is difficult to form a print of the convex conductive network. The total light transmittance (JIS K7105) of this flexible composite laminate is preferably 50% or more. To form the thickness difference between the solid part (other than the resin closed part) and the resin closed part, the process of laminating and integrating the front transparent resin layer and the back transparent resin layer in a heat-softened state is performed with a metal thermal roll and a rubber roll of a specific hardness. By sandwiching and rotary crimping, the rubber roll crimping surface side of the laminate is plastically deformed to obtain a recessed resin closed portion having a depth of 0.05 mm to 0.5 mm.

The thermoplastic resin used for the front surface transparent resin layer and the back surface transparent resin layer is preferably a soft vinyl chloride resin, and the plasticizer to be blended in the soft vinyl chloride resin composition is DOP (DEHP), DINP, DIDP, DBP, etc. Phtalic acid ester plasticizers, adipic acid ester plasticizers such as DOA (DEHA) and DINA, sebacic acid ester plasticizers, trimellitic acid ester plasticizers such as TOTM, pyromellitic acid ester plasticizers, polyesters. Examples of known plasticizers include system plasticizers, phosphoric acid ester-based plasticizers such as TCP, citric acid-based plasticizers, ethylene CO acetic acid vinyl ester-based polymer plasticizers, and ethylene CO acrylic acid ester-based polymer plasticizers. However, if consideration is given to anxiety factors such as health hazards and genetic effects that the use of phthalate ester plasticizers has on the human body, it is particularly preferable to use a non-phthalate ester plasticizer in combination, and these are specifically described. , Isophthalic acid dialkyl esters, terephthalic acid dialkyl esters, 1,2-cyclohexanedicarboxylic acid dialkyl esters, and 4-cyclohexene-1,2-dicarboxylic acid dialkyl esters. can.

The method for producing a flexible film material for industrial materials of the present invention is a non-depressed region excluding a resin blocking portion, that is, a convex portion, on at least one surface of the flexible composite laminate produced in paragraphs [0023] to [0024]. On the top surface of the region, a conductive network consisting of one or more of a) a thin film layer made of a composition containing a π-electron-conjugated conductive polymer and b) a thin film layer made of a composition containing carbon nanotubes is formed without a pattern. A process of forming only on the top surface of the convex region in contact with the flexible composite laminate by solid printing such as printing with a gravure roll, printing with a non-patterned rotary screen, non-patterned flexographic printing, and non-patterned offset printing. In the flexible film material obtained as a result, the mesh sheet substrate and the conductive network are formed in 100% synchronization with each other to obtain a flexible film material that exhibits static static elimination property and does not impair visibility. be able to. The conductive network thus obtained is a network provided in the entire region excluding the recessed resin blockage, that is, if the recessed resin blocker is a recess, all except the resin blockage. Since the region can be convex, the conductive network is therefore a conductive network formed on the convex (convex conductive network). Such a conductive network is specifically a π-electron conjugated system formed by solubilizing or finely dispersing a π-electron conjugated polymer obtained by chemically oxidizing and polymerizing a monomer constituting the π-electron conjugated polymer in a solvent. Transfer by gravure roll, printing by rotary screen, flexo printing, using polymer solution as paint, or dispersion medium containing water, alcohol, organic solvent, etc., and dispersion solution containing 0.05 to 5% by mass of carbon nanotubes as paint. It is formed by a printing method such as offset printing, particularly solid printing. In the case of a π-electron conjugated conductive polymer, a thickness of 0.05 μm to 15 μm is preferable, and in the case of carbon nanotubes, a thickness of 0.001 μm to 0.5 μm is preferable. Assuming that the total occupancy of the resin closed portion in the flexible composite laminate is 35 to 75%, the total occupancy of the convex conductive network is preferably 25 to 65%, particularly preferably 25 to 50%. If the formation of the convex conductive network exceeds 65%, the visibility may be deteriorated.

Specifically, the carbon nanotubes used for forming the conductive network are single-walled carbon nanotubes, double-walled carbon nanotubes, and multi-walled carbon nanotubes having a diameter of 1.4 nm to 15 nm, a length of 1.5 μm to 300 μm, and an oxidation level of 3 to 15 mass%. , Shortened carbon nanotubes, carbon oxide nanotubes, functionalized carbon nanotubes (terminal modification and / or side wall modification), etc., and these carbon nanotubes can be used in combination with other electroactive materials. Examples of the electroactive material include oxides of transition metals such as Ru, Ir, W, Mo, Mn, Ni, and Co, and π-electron conjugated conductive polymers (described in paragraph [0027]). For example, when the conductive network containing the π-electron conjugated conductive polymer is A and the conductive network containing carbon nanotubes is B, the two layers of "A / B" and "B / A" are used in combination, "A / B". It is a combination of three layers of "/ A" and "B / A / B".

Specific examples of the π-electron conjugated conductive polymer used for forming a conductive network include polypyrroles, polythiophenes, polyacetylenes, polyphenylenes, polyphenylene vinylenes, polyanilines, polyacenes, polythiophene vinylenes, and copolymers thereof. The main chain of a derivative polymer or the like is composed of a π-conjugated system, and the side chain, the presence or absence of a substituent, the side chain, and the type of the substituent are not particularly limited, but polypyrrole, polythiophene, poly (N-methylpyrrole), and poly. (3-Methylthiophene), poly (3-methoxythiophene), poly (3,4-ethylenedioxythiophene) and the like, and polypyrrole and polythiophene are particularly preferable. In addition, in order to make the conductivity higher, polymer carboxylate (polyacrylic acid, polymethacrylic acid, polymaleic acid, etc.) and polymeric sulfonic acid (polystyrene sulfonic acid, polyvinyl) are added to the π-electron conjugated conductive polymer. It is preferable to use a polyanion such as sulfonic acid) in combination with a mass ratio of 2: 1 to 1: 2. Further, in the antistatic thin film layer, carbon nanotubes and / or fullerenes can be contained in an amount of 0.1 to 10% by mass in the π-electron conjugated conductive polymer conductive network, and fullerenes are contained in the carbon nanotube conductive network. It can contain 1 to 10 mass%. Fullerenes include hydrogenated fullerenes, fullerenes hydroxide, fullerenes carboxylic oxides, fullerenes sulfonated and the like.

The flexible membrane material for industrial materials of the present invention is mainly a flexible membrane material used for an automatic elevating seat shutter device installed at an entrance / exit of a factory, a warehouse, etc., and is electrostatically charged by winding / unwinding more than 100,000 times. It does not impair visibility while maintaining stable static electricity elimination. (Suitable for flexible container bags, tents, etc., and partitions, floor sheets, equipment covers, aprons, etc. for clean rooms). There is no particular limitation on the size of the sheet shutter device, but a film material size with a width of 2 to 3 m and a height of 2 to 3 m is suitable for people entering and exiting. Further, a membrane material size having a width of 3 to 5 m and a height of 3 to 4 m is suitable for loading and unloading work by a transport vehicle such as a forklift. The seat shutter device is generally composed of a flexible film material for industrial materials, an upper frame, a side frame, a take-up drum core, a motor chamber (motor, brake), an open / close switch, etc., and the side frame is made of a film material. A guide groove that supports and stabilizes lifting and lowering, and a safety device that releases the membrane material from the side frame in the event of a forklift collision are provided, and the winding part has a winding drum core and a motor, providing sufficient winding storage space. Have. In addition, a sensor for automatic opening and closing, an opening / closing warning light, a voice device, a surveillance camera, an air blow device for preventing the invasion of flying pests, an air suction device, and the like can be attached.

Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto. The evaluation methods used in the examples and comparative examples of the present invention are shown below.
(1) Static elimination
A 4-point conductivity meter was used according to JIS K6911 (1995) 5.13 resistivity, and the measurement environment of the surface resistance of the test piece sheet was evaluated under the conditions of temperature 20 ± 2 ° C. and humidity 30 ± 5%.
(2) Winding / unwinding sound The hoisting / unwinding opening / closing operation is continuously performed, and the sheet peeling sound at the time of unwinding is heard at a distance of 1 m from the indoor side of the seat warehouse. Acoustic (dB) measurement was performed using 42. (JIS Z8731)
(3) Visual effect 1-1
At 1:00 pm on February 2017, at the tent warehouse of Hiraoka Orizome Co., Ltd. in Kusaka City, Saitama Prefecture (sheet shutter device installed, illuminance in the warehouse: JIS Z9110: 1979 40-60lx), the uniform of Hiraoka Orizome Co., Ltd. Male subjects A, B, C, and D wearing (navy blue), wearing a cap (navy blue), and having similar appearances and ages exist inside the tent warehouse, and are randomly located 1 m behind the flexible membrane material for industrial materials. Observers E, F, G, and H stood and judged the subjects A, B, C, and D individually through the flexible membrane material for industrial materials at the same time from a position 1 m in front of the outdoors. The subject's face identification grade is "1", the identification grade is 75% "2", the identification grade is 50% "3", the identification grade is 25% "4", and the identification grade is 0. % Was evaluated on a 5-point scale of "5", "1" was regarded as good, and "5" was regarded as poor.
Visual effect 1-2
At 1:00 pm on February 2017, at the tent warehouse of Hiraoka Orizome Co., Ltd. in Kusaka City, Saitama Prefecture (sheet shutter device installed, illuminance in the warehouse: JIS Z9110: 1979 40-60 lx), each 10 cm x 10 cm size " A paper panel with Gothic character prints of "woven", "fiber", "job", and "gi" attached to thick paper is placed inside the tent warehouse at random, 30 cm behind the flexible film material for industrial materials, and this is placed. Observers E, F, G, and H simultaneously judged the paper panels of "woven", "fiber", "job", and "play" through the flexible film material for industrial materials from a position 1 m in front of the outdoors. Paper panel with 100% identification grade is "1", identification grade is 75% with "2", identification grade is 50% with "3", identification grade is 25% with "4", identification grade is 0% Was evaluated on a 5-point scale of "5", with "1" being good and "5" being bad.
(4) Tuning with the substrate mesh The sum of the printed areas that have entered the resin closure of the 1 m ² sheet film material is used as the error area, and the error area occupancy rate with respect to the front surface area (excluding the side surface and back surface) of the mesh substrate is used. The value subtracted from 100% was taken as the synchronization rate with the substrate mesh.

[Example 1]
(1) Coarse woven fabric (base cloth 1)
^{A coarse plain woven fabric (mass 73 g / m 2} ) having a porosity of 68% was used, in which polyester (PET) multifilament yarns having the following structure were used as warp yarns and weft yarns.
(War) 1111dtex / 2 twists × (Latitude) 2222dtex / 1
Drive 6 (warp) x 4 (weft) book / 25.4mm
(2) Mesh sheet substrate The soft vinyl chloride resin paste sol composition of the following [formulation 1] is prepared to an appropriate viscosity, and the base cloth 1 is placed in a liquid bath filled with the paste sol composition of this [formulation 1]. Immerse and completely impregnate the base cloth 1 with the paste sol composition of [formulation 1], pull up the base cloth 1 and at the same time squeeze it with a rubber roll and use a hot air furnace at 180 ° C. for 3 minutes to make the paste sol of [formulation 1]. The gelation of the composition is allowed to proceed, and the black mesh sheet substrate 1 having a ^{mass of 125 g / m 2} , Mansell lightness 2, and Mansell saturation 9 impregnated and coated with the paste sol composition of [Formulation 1] is used. Obtained.
[Formulation 1] Soft vinyl chloride resin paste sol composition Emulsion-polymerized polyvinyl chloride resin (degree of polymerization 1700) 100 parts by mass 1,2-cyclohexanedicarboxylic acid diisononyl ester 60 parts by mass * Product name: Hexamol DINCH (manufactured by BASF)
* Two Rs of cyclohexanecarboxylic acid alkyl ester [Chemical Formula 3] are branched alkyl groups with 9 carbon atoms Epoxidized soybean oil (plastic agent) 10 parts by mass Zinc stearate (stabilizer) 2 parts by mass Barium stearate (Stabilizer) 2 parts by mass Calcium carbonate (filler) 10 parts by mass Antimon trioxide (flame retardant) 10 parts by mass Carbon black (black pigment) 1 part by mass (3) Surface of flexible composite laminate mesh sheet substrate 1 A film having a thickness of 0.25 mm, which was calendar-molded from the soft vinyl chloride resin composition of [Formulation 2] under thermal conditions of 165 ° C. to 180 ° C., was used for the front surface transparent resin layer and the back surface transparent resin layer. The front and back films include the mesh sheet substrate 1 as an intermediate layer, and a laminator under the thermal roll condition of 170 ° C (metal thermal roll / rubber roll pair) is placed on the side of the rubber roll, and the surface transparent resin layer film is placed on the side of the metallic thermal roll. A flexible composite laminate ^{having a thickness of 0.77 mm and a mass of 815 g / m 2} is laminated and pressure-bonded and cooled in a state where the film for the back surface transparent resin layer is passed so as to be arranged and the film is heat-softened. A film material was obtained. In this film material, the area of one resin closure portion is 36 to 40 mm ² , the total occupancy of the resin closure portion in the flexible composite laminate is 65%, and the film material is formed on the surface side of the film material crimped to the rubber roll side. The resin closure was recessed to a depth of 0.05 mm to 0.5 mm.
[Formulation 2] Soft vinyl chloride resin composition (front surface transparent resin layer / back surface transparent resin layer)
Suspension Polymerized Polyvinyl Chloride Resin (Degree of Polymerization 1300) 100 parts by mass 1,2-Cyclohexanedicarboxylic acid diisononyl ester 60 parts by mass * Product name: Hexamol DINCH (manufactured by BASF)
* Two Rs of cyclohexanecarboxylic acid alkyl ester [Chemical acid 3] are branched alkyl groups with 9 carbon atoms Epoxide soybean oil (plasticizer) 10 parts by mass Zinc stearate (stabilizer) 2 parts by mass Barium stearate (Stabilizer) 2 parts by mass Benzotriazole compound (ultraviolet absorber) 0.3 parts by mass (4) Formation of convex conductive network On the surface transparent resin layer of the flexible composite laminate of (3) above, the following Using the coating solution of [Compound 3], ^{a convex conductive network having a mass of 0.035 g / m 2} and a height of 0.13 mm was formed by 120 mesh non-patterned gravure roll coating.
[Formulation 3] Polypyrrole composition (convex conductive network)
Polypyrrole (particles with a particle size of about 1 μm that have been chemically oxidatively polymerized and precipitated in a solvent) 3 parts by mass Cyclopentanone 100 parts by mass

[Example 2]
[Formulation 1] of Example 1 was changed to the following [Formulation 4] to obtain a dark blue mesh sheet substrate 2 having Munsell lightness 4 and Munsell saturation 8, and [Formulation 2] of Example 1 was further changed to the following [Formulation 2]. A film material made of a flexible composite laminate having a thickness of 0.77 mm and a mass of 815 g / m ^{2 was obtained in the same manner as in Example 1 except that it was changed to 5].} In this film material, the area of one resin closed portion was 36 to 40 mm ² , and the total occupancy of the resin closed portion in the flexible composite laminate was 65%.
[Formulation 4] Soft vinyl chloride resin paste sol composition Emulsion-polymerized polyvinyl chloride resin (degree of polymerization 1700) 100 parts by mass 4-cyclohexene-1,2-dicarboxylic acid bis (2-ethylhexyl) 60 parts by mass (* cyclohexene dicarboxylic acid) A branched alkyl group having 8 carbon atoms with both Rs of the alkyl ester [Chemical formula 6])
Epoxidized soybean oil (plasticizer) 10 parts by mass Zinc stearate (stabilizer) 2 parts by mass Barium stearate (stabilizer) 2 parts by mass Calcium carbonate (filler) 10 parts by mass Antimon trioxide (flame retardant) 10 parts by mass Cyanin blue (blue pigment) 1 part by mass Carbon black (black pigment) 0.3 part by mass
[Formulation 5] Soft vinyl chloride resin composition (front surface transparent resin layer / back surface transparent resin layer)
Suspension Polymerized Polyvinyl Chloride Resin (Degree of Polymerization 1300) 100 parts by mass 4-Cyclohexene-1,2-dicarboxylic acid bis (2-ethylhexyl) 60 parts by mass (* Two Rs of cyclohexene dicarboxylic acid alkyl ester [Chemical formula 6] (Branched chain alkyl group with 8 carbon atoms)
Epoxide soybean oil (plasticizer) 10 parts by mass Zinc stearate (stabilizer) 2 parts by mass Barium stearate (stabilizer) 2 parts by mass Benzotriazole compound (ultraviolet absorber) 0.3 parts by mass

[Example 3]
The base cloth 1 used in Example 1 was changed to the following base cloth 2, a black mesh sheet base 3 having Munsell lightness 2 and Munsell saturation 9 was used, and the convex conductive network [Formulation 3] was changed to [Formulation 6]. A film material made of a flexible composite laminate having a thickness of 0.77 mm and a mass of 795 g / m ^{2 was obtained in the same manner as in Example 1 except for the modification.} In this film material, the area of one resin closed portion was 100 to 120 mm ² , and the total occupancy of the resin closed portion in the flexible composite laminate was 69%.
Coarse fabric (base cloth 2)
^{A coarse plain woven fabric (mass 56 g / m 2} ) having a porosity of 72% was used, in which polyester (PET) multifilament yarns having the following structure were used as warp yarns and weft yarns.
(Kei) 1111dtex / 3 pieces assortment × (Latitude) 1111dtex / 3 pieces assortment
Drive 3 (warp) x 3 (latitude) book / 25.4mm
[Formulation 6] Carbon Nanotube Composition (Convex Conductive Network)
Single-walled carbon nanotube (1.5-2.5 nm in diameter) 0.3 parts by mass Water 100 parts by mass

[Example 4]
The base cloth 1 used in Example 2 was changed to the base cloth 2, the Munsell lightness 4 and the Munsell saturation 8 were used as the dark blue mesh sheet base 4, and the convex conductive network [Formulation 3] was changed to [Formulation 6]. A film material made of a flexible composite laminate having a thickness of 0.77 mm and a mass of 795 g / m ^{2 was obtained in the same manner as in Example 2 except for the modification.} In this film material, the area of one resin closed portion was 100 to 120 mm ² , and the total occupancy of the resin closed portion in the flexible composite laminate was 69%.

[Example 5]
A flexible composite laminate ^{having a thickness of 0.77 mm and a mass of 815 g / m 2 in} the same manner as in Example 1 except that the convex conductive network [Formulation 3] of Example 1 was changed to the following [Formulation 7]. A film material made of was obtained. In this film material, the area of one resin closed portion was 36 to 40 mm ² , and the total occupancy of the resin closed portion in the flexible composite laminate was 65%.
[Formulation 7] Polypyrrole / carbon nanotube composition (convex conductive network)
Polypyrrole (particles having a particle diameter of about 1 μm obtained by chemical oxidation polymerization and solvent precipitation) 3 parts by mass Single-walled carbon nanotubes (1.5 to 2.5 nm in diameter) 0.3 parts by mass Cyclopentanone 100 parts by mass

[Example 6]
From a flexible composite laminate ^{having a thickness of 0.77 mm and a mass of 795 g / m 2 in} the same manner as in Example 3 except that the convex conductive network [Formulation 6] of Example 3 was changed to [Formulation 7]. A film material was obtained. In this film material, the area of one resin closed portion was 100 to 120 mm ² , and the total occupancy of the resin closed portion in the flexible composite laminate was 69%.

[Example 7]
Similar to Example 1 except that [Formulation 6] is further provided on the convex conductive network [Formulation 3] of the film material of Example 1, the thickness can be 0.77 mm and the mass can be 815 g / m ² . A film material made of a flexible composite laminate was obtained. In this film material, the area of one resin closed portion was 36 to 40 mm ² , and the total occupancy of the resin closed portion in the flexible composite laminate was 65%.

[Example 8]
Similar to Example 1 except that [Formulation 3] is further provided on the convex conductive network [Formulation 6] of the film material of Example 4, the thickness can be 0.77 mm and the mass can be 795 g / m ² . A film material made of a flexible composite laminate was obtained. In this film material, the area of one resin closed portion was 100 to 120 mm ² , and the total occupancy of the resin closed portion in the flexible composite laminate was 69%.

In the flexible film material for industrial materials of the present invention of Examples 1 to 4, a mesh sheet using a coarse woven fabric as a base material is used as a base material, transparent resin layers are provided on both surfaces of the base material, and through holes are filled with the transparent resin layer. is the area per one formed by resin occlusion of 25mm ² ~225mm ² is formed in a recessed shape in the depth of 0.05mm~0.5mm is, the sum occupancy of the resin occlusion is 35 to 75% A flexible composite laminate is manufactured, and a π-electron-conjugated conductive polymer thin film layer or a carbon nanotube thin film layer is provided on the surface of the flexible composite laminate in a non-depressed region excluding the resin blockage, both of which have a surface resistance value. 10 ⁶ to 10 ⁸ with equally good neutralization properties to (antistatic) properties, yet was visible effects good and low operating sound at the time of unloading solve those (no uncomfortable noise levels). Further, in the film materials of Examples 5 and 6 in which the π-electron conjugated conductive polymer and the carbon nanotubes are used in combination at the levels 1 to 4, the film material has a higher surface resistance value of 10 ⁴ to 10 ⁶ and has an antistatic property. In the same way, in the film materials of Examples 7 and 8 in which the π-electron conjugated conductive polymer thin film layer and the carbon nanotube thin film layer were used in combination at the levels 1 to 4, the surface resistance value of 10 ⁴ to high was high. 10 ⁶ neutralization of (antistatic) properties expressed, besides visual effect was good, and was low operating sound at the time of unloading solve those (no uncomfortable noise levels).

[Comparative Example 1]
The convex conductive network of Example 1 was omitted and changed to a flat conductive network.
That is, the recessed resin blockage is eliminated from the flexible composite laminate of Example 1, the flexible composite laminate is flattened, and a gravure roll for forming a conductive network (repeatedly with the substrate mesh sheet of Example 1). A film material made of a flexible composite laminate ^{having a thickness of 0.77 mm and a mass of 815 g / m 2} was obtained in the same manner as in Example 1 except that the pattern was changed to tuned 120 mesh engraving). In this membrane material, the area of one resin closed portion is 36 to 40 mm ² , the total occupancy of the resin closed portion in the flexible composite laminate is 65%, and no depressed portion is observed on the front surface side and the back surface side of the membrane material. Met.
(1) A film having a thickness of 0.25 mm, which is calendar-molded from the soft vinyl chloride resin composition of [Formulation 2] under thermal conditions of 165 ° C. to 180 ° C. on the surface of the flexible composite laminate mesh sheet substrate 1. For the front transparent resin layer and the back transparent resin layer, the front and back films include the mesh sheet substrate 1 as an intermediate layer, and pass through a laminator under thermal roll conditions of 170 ° C (metal thermal roll / metal thermal roll pair). The film was laminated and pressure-bonded and cooled in a state where the film was heat-softened to obtain a film material made of a flexible composite laminate ^{having a thickness of 0.77 mm and a mass of 815 g / m 2.} In this film material, the area of one resin closure portion is 36 to 40 mm ² , the total occupancy of the resin closure portion in the flexible composite laminate is 65%, and the film material is formed on the surface side of the film material crimped to the rubber roll side. The resin closure was recessed to a depth of 0.05 mm to 0.5 mm.
(2) Formation of conductive network A 120-mesh mesh substrate pattern (repeated pattern synchronized with the mesh substrate) is used on the surface transparent resin layer of the flexible composite laminate described in (1) above by using the coating solution of [Formulation 3]. ) A conductive network having a mass of 0.035 g / m ^{2 was printed by gravure roll coating.}
The static elimination effect of the obtained film material was the same as that of the film material of Example 1, but the formation of the conductive network was not synchronized with the mesh substrate due to the distortion of the mesh substrate and the unstable element of the processing deformation, and the film substrate was partially formed. Visibility and appearance of the film material by having a portion in which a conductive network is formed so as to cause a deviation and block the resin blocking portion in a grid pattern with a 2 mm width line, that is, by blocking the transparent resin blocking portion that contributes to visibility. Not only does it worsen, but the flattened membrane material increases the contact area, which increases the adhesion of the wound body. As a result, there is an operating noise (peeling noise) when the membrane material is unwound. It was crunchy and noisy (unpleasant noise level of 52-55 dB).

The flexible film material for industrial materials according to the present invention has low winding / unwinding noise (sheet peeling noise), is less likely to generate static electricity, and has excellent visibility while stably maintaining excellent static electricity elimination properties. Therefore, it can be used not only as a flexible film material for a seat shutter device, but also as a flexible container bag, a tent, etc., and also as a partition, a floor sheet, an equipment cover, an apron, etc. mainly for a clean room.

(1): Flexible film material for industrial materials (2): Coarse woven base material (3): Colored coating with thermoplastic resin (4): Through hole (5): Mesh sheet base material (6-1): Surface transparent resin Layer (6-2): Back surface transparent resin layer (7): Flexible composite laminate (7-1): Resin closure (8): Convex conductive network (8-1): Conductive thin film layer

Claims (3)

Using a coarse woven fabric as a base material, the entire surface thereof is coated with a thermoplastic resin, and a mesh sheet having a large number of through holes is used as a base material, a surface transparent resin layer provided on the entire surface of the base material, and the above-mentioned A flexible composite laminate having a back surface transparent resin layer provided on the entire back surface of the substrate, wherein the through holes are filled by laminating the front surface transparent resin layer and the back surface transparent resin layer from 0.05 mm to 0. The recessed resin having a depth of .5 mm is formed, the area of each of the recessed resin closures ^{is 36 mm 2 to 225 mm 2} , and the recessed resin in the flexible composite laminate is formed. The total occupancy of the closed portion is 65 to 75%, and at least on one side of the flexible composite laminate, a composition layer containing carbon nanotubes or π in the entire region except the recessed resin closed portion. A flexible film material for industrial materials, characterized in that a convex conductive network is formed by a composition layer containing an electron-conjugated conductive polymer and carbon nanotubes. One or more of the π-electron conjugated conductive polymers selected from polypyrroles, polythiophenes, polyacetylenes, polyphenylenes, polyphenylene vinylenes, polyanilines, polyacenes, polythiophene vinylenes, and copolymers thereof. The flexible film material for industrial materials according to claim 1. Single-walled carbon nanotubes, double-walled carbon nanotubes, multi-walled carbon nanotubes, shortened carbon nanotubes, carbon oxide nanotubes, and functionalized carbon nanotubes, wherein the carbon nanotubes have a diameter of 1.4 nm to 15 nm and a length of 1.5 μm to 300 μm. terminal modifications and / or sidewall modification) from at least one member selected請Motomeko 1 industrial materials for flexible film material according to.

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