JP2016124203A - Non-inflammable membrane material for building structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide non-inflammable membrane material for building structure used for partition, smokeproof hanging wall, luminous wall membrane, luminous ceiling membrane etc., in which even if the membrane material is folded or accidentally folded particularly upon sewing step or carrying out operation of the membrane material, generation of linear white wound at appearance of the membrane material and light permeable appearance is effectively suppressed.SOLUTION: There is provided a light diffusion permeable laminated product in which fabric comprising warp and weft of inorganic multifilament yarn is provided as substrate cloth, a resin cover fire-resistant layer is arranged on one side of the substrate cloth, and the resin cover fire-resistant layer is arranged at a front side. Completed tissue of the substrate cloth exposing to backside of the light diffusion permeable laminated product has any loose structure in which the warp bridges over 3, 4 or 5 weft yarns.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a long incombustible film material based on an inorganic woven fabric, and more particularly has incombustibility, flexibility and appropriate light diffusibility. The present invention relates to a non-combustible film material for building structures in which the appearance of whitening traces is effectively suppressed in the appearance of the film material and the light transmission appearance even when the film material is bent or accidentally bent during handling.

  Patent Document 1 discloses a transparent incombustible sheet composed of a glass fiber fabric and a thermosetting resin layer, and this transparent incombustible sheet is excellent by reducing the difference in refractive index between the glass fiber fabric and the resin layer. Transparency is ensured. However, if the sheet is bent strongly, fine peeling and gaps will be generated between the glass fiber and the impregnated coating resin at the folded part, and it has the disadvantage that it becomes whitened traces due to refracted reflection, which deteriorates the appearance. There was a problem that the whitening traces did not disappear. Therefore, in Patent Document 2, a thermoplastic resin layer is added to the configuration of the glass fiber fabric and the thermosetting resin layer to improve the occurrence of whitening due to bending and bending, but the thermosetting resin layer and the thermosetting resin layer are improved. Since the adhesiveness with the plastic resin layer is inferior, a new problem of easy delamination due to bending and bending occurs. As described above, in the thermosetting resin processing for the glass fiber fabric, the compatibility between the glass material and the resin is fundamentally inferior, and whitening traces are easily generated due to bending strain.

JP 2005-319746 A JP 2014-201007 A

  The present invention has non-flammability, flexibility, and moderate light diffusibility, and even when the membrane material is folded or accidentally bent during the sewing process or construction handling of a long membrane material, It is a film material for building materials with excellent handling properties, such as effectively suppressing the appearance of whitening traces in the appearance of the material and the light transmission appearance, and it is a partition, smoke barrier, light wall film, light ceiling An object of the present invention is to provide an incombustible film material for building structures suitable for a film.

  In order to solve the above-mentioned problems, a long woven fabric having an inorganic multifilament yarn as warp and weft is used as a base fabric, and a resin-coated flame retardant layer is provided on one side of the base fabric, and the resin-coated flame retardant layer is provided. In the light diffusion / transmission laminate on the front side, the complete structure of the base fabric exposed on the back surface of the light diffusion / transmission laminate has a loose structure due to warp straddling, so that the membrane material is subjected to a bending load. Even when added, it was found that the loose structure acts to absorb strain displacement, and that the appearance of the film material and the light transmission appearance of the obtained film material are less likely to cause whitening scars, and the present invention has been completed. .

  That is, the non-combustible film material for building structure of the present invention uses a fabric having inorganic multifilament yarn as warp and weft as a base fabric, and a resin-coated flame retardant layer is provided on one side of the base fabric, and this resin-coated flame retardant layer Is a light diffusion / transmission laminate having a surface side, and the complete structure of the base fabric exposed on the back surface of the light diffusion / transmission laminate is the number of three, four, It is preferable to have a loose structure of five. By having a loose structure with three, four, and five weft floats across the warp, the membrane material can be bent or inadvertently handled during the sewing process and construction of long membrane materials. Even if it bends, the loose structure exhibits the action of absorbing and relaxing strain displacement due to external force, and it is possible to effectively suppress the appearance of whitening scars in the appearance of the film material and the light transmission appearance.

  In the non-combustible film material for building structure of the present invention, the complete structure exposed on the back surface of the light diffusive transparent laminate was 3/1 vertical and 3/1 broken as [4 sheets vertical twill] Ascendant, [5 sheets vertically Aya], 3/2 vertically oblique, and 4/1 vertically oblique, [6 sheets vertically Aya], 5/1 vertically oblique, 4/2 Vertically-spoken, and 1/3 / 1.1 Vertically-sented, [Five-sheets-red], 2 jump 4/1, vertical 3/4, vertical 4/1, vertical, 2/2 It is preferably one kind selected from freshly-scored and 3/2 freshly-scored Akiko. By having a loose structure with three, four, and five floating straddles with respect to the weft of the warp in this way, the membrane material can be bent during the sewing process and construction handling of long membrane materials. Even if it is bent unexpectedly, the loose structure exhibits the action of absorbing and mitigating strain displacement due to external force, and it is possible to effectively suppress the appearance of whitening scars in the appearance of the film material and the light transmission appearance.

  In the incombustible film material for building structure of the present invention, the inorganic multifilament yarn is preferably at least one selected from glass fiber, silica fiber, alumina fiber, and silica alumina fiber. This makes it possible to meet the non-flammable characteristics specified in ISO 5660 Part 1.

  In the incombustible film material for building structures of the present invention, it is preferable that the resin-coated flame retardant layer contains one or more selected from silicone resins, fluorine resins, and vinyl chloride resins. This makes it possible to meet the non-flammable characteristics specified in ISO 5660 Part 1.

  According to the present invention, the material conforms to the combustion characteristics specified in ISO 5660 Part 1 and has flexibility and moderate light diffusibility, and the membrane material is bent especially during the sewing process and construction handling of a long membrane material. Even if it is bent unexpectedly, it is extremely easy to handle so that the appearance of whitening scars is effectively suppressed in the appearance of the film material and the light transmission appearance. As a film material, it can be widely used for building material applications such as partitions, smoke barriers, light wall films, and optical ceiling films.

The figure which shows an example of the complete structure of the base fabric 1 exposed on the back surface of the incombustible film material for building structures of the present invention The figure which shows an example of the complete structure of the base fabric 2 exposed on the back surface of the incombustible film material for building structures of the present invention

  The non-combustible film material for building structures of the present invention is a twill fabric (for example, four warps, five warps, six warps) using inorganic multifilament yarns (preferably glass fibers, silica fibers) as warps and wefts. Aya) or satin fabric (for example, five-ply satin) is used as a long base fabric, and a resin-coated flame retardant layer (preferably a silicone-based resin, a fluorine-based resin, or a vinyl chloride-based resin) on one side of the base fabric. In the light diffusive transparent laminate having the resin-coated flame retardant layer on the front side, the complete structure of the base fabric exposed on the back surface of the light diffusible transparent laminate (based on the structure of one section) The unit structure of this one section in the woven fabric constructed by repeating the above has a loose structure of three, four, and five weft floats over warp yarns. Absorbs and reduces strain displacement due to external force Wherein the onset of action that. When the number of floating straddles is 2 or less, the effect of inhibiting whitening scars is insufficient, and when the number of floating straddles is 6 or more, the loose structure becomes excessive and the dimensional stability when used as a non-combustible film material for building structures May cause adverse effects.

  The base fabric used for the non-combustible film material for building structures of the present invention uses inorganic multifilament yarns as warps and wefts, and in the complete structure on the exposed side of the base fabric, the number of weft floats across the warp is 3, 4 , And five long fabrics having a loose structure, including warps in the longitudinal direction and wefts in the width direction. The inorganic multifilament yarn is composed of at least one selected from glass fiber, silica fiber, alumina fiber, and silica alumina fiber, and these are multifilaments having a filament diameter of 3 to 10 μm and a fineness of 138 to 2223 dtex, particularly 277 to 1112 dtex. Thus, it is a yarn formed by converging with 50 to 500 filaments, particularly 100 to 300 filaments. The glass fiber may have any glass composition such as E (non-alkali) glass, C (containing alkali) glass, G glass, A glass, S glass, D glass, and DE glass. These inorganic multifilament yarns are twisted or untwisted single yarns, or double yarns in which two single yarns are twisted together. The single yarn has a substantially circular, elliptical or flat cross section. It is. As for the base fabric, the exposed side structure constituting the complete structure is [4 sheets vertical twill], 3/1 vertical oblique, and 3/1 broken / vertical oblique, [5 vertical vertical] 3/2 vertical text, 4/1 vertical text, [6 sheets vertical text], 5/1 vertical text, 4/2 vertical text, and 1/3/1. 1 straight text, [5 sheets fresh red], 2 jump 4/1 fresh red, 3 jump 4/1 fresh red, 2 jump 3/2 fresh, and 3 jump 3/2 It is one kind selected from Akiko. The base fabric is preferably a long fabric having a void ratio of 8% or less of the total voids generated at the intersections of the warp and weft, and the warp and weft drive density is 30 to 100 yarns of 277 to 1112 dtex, respectively. / 1 inch long fabric. If the porosity exceeds 8%, pinholes are likely to be generated on the surface of the membrane material, and it may not be possible to conform to the combustion characteristics specified in ISO 5660 Part 1. These base fabrics are preferably subjected to a surface modification treatment with a silane coupling agent from the viewpoint of improving adhesion with the resin-coated flame retardant layer.

  In the non-combustible film material for building structures of the present invention, the resin-coated flame retardant layer is a single-layer structure of any one selected from silicone resins, fluorine resins, and vinyl chloride resins, or a combination of these resins. In the resin-coated flame retardant layer having a multilayer structure, the formation of the resin-coated flame retardant layer is 25 to 150% by mass, particularly 50 to 100% by mass, based on the total mass of the base fabric. If the mass of the resin-coated flame retardant layer is less than 25% by mass, the resulting film material may have insufficient shape stability, and if it exceeds 150% by mass, it may not be able to meet the combustion characteristics specified in ISO 5660 Part 1. . As the silicone resin, those having flexibility such as addition reaction curable silicone elastomer, condensation reaction curable silicone elastomer, radical (peroxide crosslinking) reaction curable silicone elastomer can be used. An addition reaction curable silicone elastomer that can be cured at low temperature is preferable. Addition reaction curable silicone elastomers are those in which functional groups in two types of organopolysiloxane are bonded by an addition reaction to be crosslinked and formed into an elastomer. These include, for example, aliphatic unsaturated groups such as vinyl groups and hexenyl groups. And a composition comprising an organopolysiloxane, an organohydrogenpolysiloxane, and a platinum group compound catalyst. Aliphatic unsaturated group-containing organopolysiloxanes include vinyl dimethylsiloxy group-blocked dimethylpolysiloxane at both ends, vinyldimethylsiloxy group-blocked dimethylsiloxane / methylvinylsiloxane copolymer at both ends, and vinylmethylphenylsiloxy group-blocked dimethylsiloxane at both ends. -A methylphenylsiloxane copolymer is mentioned. Examples of the organohydrogenpolysiloxane include trimethylsiloxy group-capped methylhydrogen polysiloxane at both ends, trimethylsiloxy group-capped dimethylsiloxane / methylhydrogensiloxane copolymer, dimethylhydrogensiloxy group-capped dimethylsiloxane / methylhydrol at both ends. Examples include a disiloxane copolymer and methylhydrogencyclopolysiloxane. Condensation reaction curable silicone elastomers are functional groups in two types of organopolysiloxanes, or those in which organopolysiloxanes and functional groups in silicon compounds such as silica and silane are bonded by a condensation reaction to crosslink and become elastomers. The reaction curable silicone elastomer is made into an elastomer by an organopolysiloxane, a reinforcing filler and an organic peroxide. These silicone elastomers can contain an expanding filler, a flame retardant, an organic pigment, an inorganic pigment, an organic solvent, and the like.

  The fluororesin used for the resin-coated flame retardant layer is a homopolymer of one monomer selected from vinyl fluoride, vinylidene fluoride, trifluoroethylene, tetrafluoroethylene, chlorotrifluoroethylene, and hexafluoropropylene. Such as a fluorine-containing polymer, a fluorine-based elastomer obtained by copolymerizing two or more of these monomers, or a fluorine-based elastomer obtained by copolymerizing one or more of these monomers with a vinyl monomer. What you have can be used. The vinyl chloride resin used for the resin-coated flame retardant layer is a copolymer of vinyl chloride monomer in addition to a vinyl chloride monomer homopolymer (emulsion polymerization type, suspension polymerization type having a polymerization degree of 700 to 3800). Copolymers with other monomers that can be made, and graft polymers. As the vinyl chloride resin, a soft vinyl chloride resin containing a plasticizer is preferable because of its excellent flexibility. As the plasticizer, adipic acid dialkyl esters, sebacic acid dialkyl esters, phthalic acid dialkyl esters, iso or terephthalic acid dialkyl esters , Cyclohexanedicarboxylic acid dialkyl esters, aromatic phosphate esters, chlorinated paraffins, polyester oligomers and the like containing 10-50% by mass of the resin-coated flame retardant layer, polyisocyanate compounds and polyols as adhesives Examples include compounds, flame retardants, fillers, metal composite stabilizers, colorants, ultraviolet absorbers and the like.

  The resin-coated flame retardant layer preferably contains a flame retardant, and the flame retardant is specifically a). Phosphorus atom-containing compounds such as metal phosphates, metal organic phosphates, phosphate derivatives, ammonium polyphosphates, and ammonium polyphosphate derivative compounds, b). Nitrogen-containing compounds (melamine cyanurate) such as (iso) cyanurate compounds, (iso) cyanuric acid compounds, guanidine compounds, urea compounds, and derivative compounds thereof, c). Inorganic compounds such as silicon compounds, metal hydroxides, metal oxides, metal carbonate compounds, metal sulfate compounds, boric acid compounds, and inorganic compound complexes; d). 10 to 150 parts by mass, preferably 30 to 100 parts by mass, based on 100 parts by mass of resin (elastomer) that is one or more selected from organic bromides and organic chlorinated compounds. By doing so, these flame retardants can be used for the purpose of concealing the light source position instead of the light diffusing agent.

  In addition, the resin-coated flame retardant layer is made of a light-diffusing particle, such as a milky white to transparent, spherical or amorphous particulate inorganic compound or polymer compound having an average particle diameter of 1 to 30 μm. The light diffusing particles may contain, for example, glass beads, hollow glass beads, glass powder, silica (silicon oxide), 0.1 to 20% by mass, preferably 1 to 10% by mass. Natural mica powder, synthetic mica powder, silicone resin beads, silicone resin powder, (crosslinked) acrylic resin beads, (crosslinked) acrylic resin powder, (crosslinked) polystyrene resin beads, (crosslinked) polystyrene resin powder, (high Density) polyethylene resin beads, (high density) polyethylene resin powder, epoxy resin beads, epoxy resin powder, benzoguanamine resin beads, benzoguana Down resin powder and the like.

  As a method for forming a resin-coated flame retardant layer on a base fabric and obtaining a light diffusive transparent laminate, for example, a resin composition (paint) dissolved in an organic solvent, a resin composition using a resin emulsion (latex) (Paint), paste sol mainly composed of soft polyvinyl chloride resin, etc., a known coating method, for example, impregnation such as coating (single-side processing to a long base fabric) (inside the base fabric) Is impregnated with the resin composition, but the surface of the base fabric is not coated with the resin composition) and impregnation coating (the base fabric is impregnated with the resin composition, and An example is a state in which a coating layer of a resin composition is formed on the surface of the material fabric. Moreover, the method of laminating | stacking the film of 0.01-0.3 mm shape | molded on the elongate base fabric by the calendar | calender shaping | molding and the T-die extrusion method through an adhesive agent or a heat | fever lamination may be sufficient. The non-combustible film material for building structure of the present invention has a loose structure with a complete structure on the exposed side of the base fabric, something with three, four and five wefts floating over the warp. It is a long membrane material including warp in the direction and weft in the width direction. A large optical ceiling film can be formed by arranging a plurality of the long film materials in the longitudinal direction and stitching the end portions together in width, and has a loose structure in which the wefts are floated over the warp threads as viewed in the longitudinal direction. In the use of the optical ceiling film, the visible light transmittance (JIS Z8722) of the non-combustible film material for building structure (light diffusive transparent laminate) of the present invention is 10 to 50%. Best suited for concealment effects.

  The incombustible film material for building structure according to the present invention can be printed on the resin-coated flame retardant layer, thereby enabling appearance display and display of light by light transmission throughout the day and night. The printing can be any known printing, such as gravure printing, screen printing, transfer printing, and ink jet printing. However, in the non-combustible film material for building structure of the present invention, the ink is balanced in light transmittance and color development. Inkjet printing with a small coating amount is suitable.

The non-combustible film material for building structure of the present invention is radiated by a radiant electric heater with respect to the non-combustible film material for building structure (light diffusive laminate) in a cone calorimeter test method (ISO5660Part1). when irradiated m ^2, and the gross calorific value of the heating start after 20 minutes is at 8 MJ / ^{m 2} or less, and the heating start after 20 minutes, the highest heat release rate continues for 10 seconds or more not exceeding 200 kW / ^{m 2} combustion It satisfies the characteristics.

EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated concretely, this invention is not limited to these. First, a method for evaluating a non-combustible film material for building structures according to the present invention will be described.
<Visible light transmittance>
A spectroscopic color meter CM3600d (manufactured by Konica Minolta Co., Ltd.) was used, and measurement was performed according to JIS Z8722.
<Combustion test> (ASTM-E1354: Corn calorimeter test method)
The surface of the film material was irradiated with 50 kW / m ² of radiant heat from a radiant electric heater for 20 minutes. In this exothermic test, the total heat generation amount and the heat generation rate for 20 minutes were measured, and the appearance of the film material after the test was observed.
(A) Total calorific value: 8 MJ / m ² or less was regarded as suitable.
(B) heating speed: 10 seconds or more continuously to the Relevant not exceed 200 kW / ^{m 2.}
(C) Appearance observation: Applicable to those with no pinhole depression exceeding 0.5 mm in diameter.
<Bend Resistance Test (1)> A 10 cm (vertical) × 10 cm (horizontal) square film material piece folded in two at a vertical 5 cm position and further folded in two at a horizontal 5 cm position (vertical) A four-fold body of 5 cm (horizontal) was used as a test piece. The test piece is sandwiched between two 10 cm × 10 cm glass plates and left standing at 20 ° C. for 30 minutes with a 5 kg weight placed on it. Then, the test piece is expanded, the fold marks are observed with transmitted light, and there is no whitening mark. And the state was confirmed.
1: No whitening marks are observed
2: The occurrence of whitening marks is slight
3: The occurrence of whitening marks is remarkable <Bend resistance test (2)> Using the test piece of the above test (1), the two-fold portion performed in (1) was inverted and tested as a double fold (1) In the same manner as above, the same test and evaluation as in test (1) were performed using four folded bodies as test pieces.
<Bend resistance test (3)> Scott type bending reciprocating wear test (JIS L1096 8.19.2B method)
A sample 25 mm long x 120 mm wide was taken from the membrane material, mounted on a Scott type tester, bent 50 times under a load of 1 kgf, and observed the condition of the substrate fabric surface after the test to wear Durability was determined as follows.
1: No abnormality in the woven structure of the base fabric
2: Deviation is recognized in the woven structure of the base fabric
3: Remarkable disorder is recognized in the woven structure of the base fabric

[Example 1]
<Base material fabric 1>
A base fabric with a porosity of 1% using E-glass multifilament yarn (filament diameter 9 μm, 400 filaments: flat yarn with 75 dtex) as warp and weft. It is a complete structure of 3/1 broken and warped text with a loose structure with three floating struts for wefts, warp driving density 52/1 inch, weft driving density 40/1 inch, mass A heat cleaning fabric that was 250 g / m ² was used.
<Resin-coated flame retardant layer>
A soft vinyl chloride resin paste composition of the following formulation 1 was used for forming a resin-coated flame retardant layer. The paste of Formula 1 is uniformly hung in the width direction on the front side of the base fabric 1 (not having a loose structure due to warp floating), and is passed through a pressure-bonding portion by a doctor blade, so that the front side of the base fabric 1 A uniform wet coating with the paste of Formulation 1 is formed, and the gelation is performed by heating in an electric furnace at 180 ° C. for 3 minutes, and a resin-coated flame retardant layer is provided on the front side surface of the base fabric 1 at 50 g / m ^2. The obtained film material was obtained. A part of the resin-coated flame retardant layer was formed in an impregnated state inside the base fabric 1, whereby the resin-coated flame retardant layer was adhered to the base fabric 1. The mass of the obtained membrane material is 300 g / m ² , and the appearance of the back surface is a four-ply twill woven fabric with a loose structure with a loose structure of three warps and three wefts. It was the complete structure of the sentence, and included a warp driving density of 52 yarns / inch, a weft driving density of 40 yarns / inch, a warp yarn in the longitudinal direction, and a weft yarn in the width direction.
[Formulation 1] Resin-coated flame retardant layer with vinyl chloride resin emulsion polymerization vinyl chloride resin (degree of polymerization 1700) 100 parts by mass 1,2-cyclohexanedicarboxylic acid diisononyl (plasticizer) 60 parts by mass * Product name: Hexamol DINCH ( (Made by BASF)
Cresyl diphenyl phosphate (flameproof plasticizer) 10 parts by mass (also known as CDP: cresyl diphenyl phosphate)
Antimony oxide (flame retardant) 15 parts by weight Molybdenum oxide (flame retardant) 5 parts by weight Cross-linked acrylic resin beads (light diffusing agent) particle size 15 μm 5 parts by weight Barium zinc composite compound (stabilizer) 2 parts by weight Isocyanurate-modified triisocyanate (TDI trimer) 3 parts by weight Diethylene glycol (polyol) 3 parts by weight * Adhesion of isocyanurate-modified triisocyanate improves adhesion to the base fabric 1 and at the same time, soft vinyl chloride resin by polymerization with diethylene glycol. By forming a polyurethane structure inside, the adhesiveness with the base fabric 1 is further strengthened.

[Example 2]
Except that the formulation 1 of Example 1 was changed to the following formulation 2, the solution of the formulation 2 was treated in the width direction on the front side of the base fabric 1 (having no loose structure due to warp floating) , Uniformly passed through a pressure-bonded portion by a doctor blade, uniformly forming a wet coating film of the solution of Formulation 2 on the surface side of the base fabric 1, and after removing toluene by pre-drying, 160 ° C. × 3 Addition reaction curing was performed by heating in an electric furnace for minutes to obtain a film material in which a resin-coated flame retardant layer was provided at 40 g / m ² on the surface side of the base fabric 1. A part of the resin-coated flame retardant layer was formed in an impregnated state inside the base fabric 1, whereby the resin-coated flame retardant layer was adhered to the base fabric 1. The obtained film material has a mass of 290 g / m ² , and the appearance of the back surface thereof is a four-ply twill woven fabric with a loose structure of 3 warp yarns against a weft of warp 3/1 It was the complete structure of the oblique text, which had a warp driving density of 52 yarns / 1 inch, a weft driving density of 40 yarns / 1 inch, warp yarns in the longitudinal direction, and weft yarns in the width direction.
[Formulation 2] Resin-coated flame retardant layer with silicone resin * Addition reaction curable silicone elastomer (using the following two liquids)
Both ends vinyldimethylsiloxy group-capped dimethylpolysiloxane 50 parts by mass Both ends trimethylsiloxy group-capped methylhydrogenpolysiloxane 50 parts by mass Platinum group compound (catalyst) 0.2 parts by mass Crosslinked acrylic resin beads (light diffusing agent) particle size 15 μm 5 parts by weight Melamine cyanurate (flame retardant) 10 parts by weight Aluminum hydroxide (flame retardant) 10 parts by weight Toluene (diluent) 100 parts by weight

Example 3
Except that the formulation 1 of Example 1 was changed to the following formulation 3, the solution of this formulation 3 was treated in the width direction on the front side of the base fabric 1 (having no loose structure due to warp floating) And uniformly pass through the pressure-bonding part by a doctor blade, uniformly form a wet coating film with the solution of Formula 3 on the surface side of the base fabric 1, and remove the solvent by heating in an electric furnace at 120 ° C. for 3 minutes. Then, a film material in which a resin-coated flame retardant layer was provided at 46 g / m ² on the surface side of the base fabric 1 was obtained. A part of the resin-coated flame retardant layer was formed in an impregnated state inside the base fabric 1, whereby the resin-coated flame retardant layer was adhered to the base fabric 1. The obtained film material has a mass of 296 g / m ² , and the appearance of the back surface is a four-ply twill woven fabric that has a loose structure with three warp wefts and three wefts. It was the complete structure of the oblique text, which had a warp driving density of 52 yarns / 1 inch, a weft driving density of 40 yarns / 1 inch, warp yarns in the longitudinal direction, and weft yarns in the width direction.
[Formulation 3] Resin-coated flame retardant layer with fluororesin Soft fluororesin (tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride terpolymer resin)
100 parts by mass Crosslinked acrylic resin beads (light diffusing agent) particle size 15 μm 5 parts by mass Antimony trioxide (flame retardant) 10 parts by mass Aluminum hydroxide (flame retardant) 10 parts by mass Dimethylformamide (diluent) 50 parts by mass Methyl ethyl ketone ( Diluent) 50 parts by mass Toluene (diluent) 50 parts by mass

Example 4
A film material in which a resin-coated flame retardant layer is provided at 50 g / m ² on the surface side of the base fabric 2 as in Example 1, except that the base fabric 1 of Example 1 is changed to the following base fabric 2 Got. A part of the resin-coated flame retardant layer was formed in the base fabric 2 in an impregnated state, whereby the resin-coated flame retardant layer was adhered to the base fabric 1. The obtained film material has a mass of 300 g / m ² , and the appearance of the back surface thereof is a five-ply satin woven fabric, and has a loose structure in which the number of floats on the weft of the warp is four. This was a complete structure of satin. The warp driving density was 52/1 inch, the weft driving density was 40/1 inch, warp was included in the longitudinal direction, and weft was included in the width direction.
<Base material fabric 2>
A base fabric with a porosity of 1% using E glass multifilament yarn (filament diameter 9 μm, 400 filaments: flat yarn with 75 dtex) as the warp and weft. This is the complete structure of 3 jump 4/1 warp satin with a loose structure of 4 wefts over the weft, warp driving density of 52/1 inch, weft driving density of 40/1 inch, mass of 250g / M ² , a heat cleaning fabric was used.

Example 5
A membrane material in which a resin-coated flame retardant layer is provided at 40 g / m ² on the surface of the base fabric 2 is obtained in the same manner as in Example 2 except that the base fabric 1 in Example 2 is changed to the base fabric 2. It was. A part of the resin-coated flame retardant layer was formed in the base fabric 2 in an impregnated state, whereby the resin-coated flame retardant layer was adhered to the base fabric 1. The obtained film material has a mass of 290 g / m ² , and the appearance of the back surface thereof is a five-ply satin woven fabric, a three-flight 4/1 warp having a loose structure with four floating warps and wefts This was a complete structure of satin. The warp driving density was 52/1 inch, the weft driving density was 40/1 inch, warp was included in the longitudinal direction, and weft was included in the width direction.

Example 6
A membrane material in which a resin-coated flame retardant layer is provided at 40 g / m ² on the surface of the base fabric 3 is the same as in Example 2 except that the base fabric 1 of Example 2 is changed to the following base fabric 3. Obtained. A part of the resin-coated flame retardant layer was formed in an impregnated state inside the base fabric 3, whereby the resin-coated flame retardant layer was adhered to the base fabric 1. The obtained film material has a mass of 290 g / m ² , and the appearance of the back surface is a five-ply satin woven fabric with a loose structure with a loose structure of four warp wefts and four wefts 4/1 This was a complete structure of satin. The warp driving density was 52/1 inch, the weft driving density was 40/1 inch, warp was included in the longitudinal direction, and weft was included in the width direction.
<Base material fabric 3>
A base fabric with a porosity of 1% using E glass multifilament yarn (filament diameter 9 μm, 400 filaments: flat yarn with 75 dtex) as the warp and weft. This is a complete structure of 2 jump 4/1 warp satin with a loose structure with 4 floating struts for weft, warp driving density 52/1 inch, weft driving density 40/1 inch, mass 250g / M ² , a heat cleaning fabric was used.

  The film materials of Examples 1 to 6 all have non-flammability that conforms to the combustion characteristics specified in ISO 5660 Part 1, have flexibility and moderate light diffusion properties, etc., such as partitions, smoke barriers, and light walls. Suitable for building material applications such as membranes and optical ceiling membranes, and has a loose structure with warp struts exposed especially on the back side of the membrane material, so that even if the membrane material is folded, the float straddle loose structure absorbs and relaxes strain displacement Due to the action, it was a film material excellent in handleability in which the appearance of whitening scars was effectively suppressed in the appearance and light transmission appearance of the film material.

[Comparative Example 1]
A film material in which a resin-coated flame retardant layer is provided at 40 g / m ² on the surface side of the base fabric 4 is the same as in Example 2 except that the base fabric 1 of Example 2 is changed to the following base fabric 4. Obtained. A part of the resin-coated flame retardant layer was formed in an impregnated state inside the base fabric 4, whereby the resin-coated flame retardant layer was adhered to the base fabric 1. The mass of the obtained film material is 290 g / m ² , the back side is a complete structure, and the number of warp and weft floats is one each, the warp driving density is 52/1 inch, the weft punching The packing density was 40/1 inch, the warp was included in the longitudinal direction, and the weft was included in the width direction.
<Base material fabric 4>
A plain woven fabric with a porosity of 1% using E glass multifilament yarn (filament diameter 9 μm, 400 filaments: flat yarn with 75 dtex) as the warp and weft. A heat-cleaning fabric having a structure in which the number of straddles was one each and had a warp driving density of 52 yarns / 1 inch, a weft driving density of 40 yarns / 1 inch, and a mass of 250 g / m ² was used.

[Comparative Example 2]
A membrane material in which a resin-coated flame retardant layer is provided at 40 g / m ² on the surface side of the base fabric 5 except that the base fabric 1 in Example 2 is changed to the base fabric 5 described below. Obtained. A part of the resin-coated flame retardant layer was formed in an impregnated state inside the base fabric 5, whereby the resin-coated flame retardant layer was adhered to the base fabric 1. The mass of the obtained membrane material is 290 g / m ² , and the back side is ten satin woven fabrics. The warp driving density was 52/1 inch, the weft driving density was 40/1/1 inch, the warp was included in the longitudinal direction, and the weft was included in the width direction.
<Base material fabric 5>
A base fabric with a porosity of 1% using E glass multifilament yarn (filament diameter 9 μm, 400 filaments: flat yarn with 75 dtex) as the warp and weft. This is a complete structure of 9/1 warp satin with a structure of nine floating struts for a weft of warp, warp driving density of 52/1 inch, weft driving density of 40/1 inch, mass of 250 g / m ² was used.

  The film materials of Comparative Examples 1 and 2 had incombustibility, flexibility, and appropriate light diffusibility. However, the membrane material of Comparative Example 1 has a structure in which the number of warp and weft floats is one each because the base material fabric 4 (plain fabric) is used, and when the membrane material is bent, the strain displacement is absorbed and reduced. Is not fully expressed, it causes irregular reflection due to fine peeling at the interface between the base fabric and the resin-coated flame retardant layer, and this is visually observed as whitening traces, so that the appearance and light transmission of the film material Appearance was bad. Further, the membrane material of Comparative Example 2 has a loose structure having nine floating weft yarns using warp yarns by using the base material fabric 5 (ten warp satin fabric), and when the membrane material is folded However, although the strain displacement absorption and relaxation was sufficiently suppressed, the generation of whitening traces was suppressed. However, the loose structure with nine warp floating struts has a shape retaining property of the woven structure of the base fabric. It became brittle, and when it was rubbed on the back side of the membrane material, it was poor in practical durability, such as significant disturbance in the woven structure.

  According to the present invention, it conforms to the combustion characteristics specified in ISO 5660 Part 1 and has flexibility and appropriate light diffusibility. In particular, the membrane material can be bent or inadvertently handled during the sewing process and construction of the membrane material. Even if it is bent, the appearance of whitening traces is effectively suppressed in the appearance of the film material and the light transmission appearance, so as a long incombustible film material for building structures, partitions, smoke barriers, light wall films It can be widely used for building material applications such as optical ceiling membranes.

1: Inorganic multifilament yarn (warp)
2: Inorganic multifilament yarn (lat)
3: Back side appearance of non-combustible film material for building structure: 3 jump 4/1 vertical vermillion (5 vertical vermillion fabrics)
4: Back side appearance of non-combustible film material for building structure: 2 jump 4/1 vertical satin (5 sheet vertical satin fabric)
5: Complete organization

Claims (4)

  A light diffusive permeable laminate in which a woven fabric having an inorganic multifilament yarn as warp and weft is used as a base fabric, a resin-coated flame retardant layer is provided on one side of the base fabric, and the resin-coated flame retardant layer is a surface side. The complete structure of the base fabric exposed on the back surface of the light diffusive and transparent laminate has a loose structure such as three, four, and five weft floats of warp. A non-combustible film material for building structures.   The complete structure exposed on the back surface of the light diffusive transparent laminate is [4 sheets vertical twill], 3/1 vertical oblique, and 3/1 broken / vertical oblique, [5 horizontal vertical] As 3/2 vertical text, 4/1 vertical text, and [6 sheets vertical text], 5/1 vertical text, 4/2 vertical text, and 1/3/1・ As a 1-line text, [Five-sheet red], 2 jump 4/1 vertical Akuko, 3 jump 4/1 vertical Akuko, 2 jump 3/2 vertical Akuko, and 3 jump 3/2 The non-combustible film material for building structure according to claim 1, wherein the material is one selected from Akiko.   The non-combustible film material for building structure according to claim 1 or 2, wherein the inorganic multifilament yarn is at least one selected from glass fiber, silica fiber, alumina fiber, and silica alumina fiber.   The non-combustible film material for a building structure according to any one of claims 1 to 3, wherein the resin-coated flame retardant layer includes one or more selected from silicone resins, fluorine resins, and vinyl chloride resins. .