JP4661327B2 - Vehicle interior material woven and knitted fabric and uses - Google Patents

Description

  The present invention relates to a flame-retardant woven or knitted fabric used for interior materials for vehicles such as aircraft, automobiles, trains, ships, etc., and more specifically, physical properties such as strength, wear resistance, shock absorption and the like. The present invention relates to a woven or knitted vehicle interior material that is not only excellent in chemical properties such as weather resistance and chemical resistance, but also has very little deterioration in flame retardant performance during practical use.

  Currently, as interior materials for vehicles such as airplanes, automobiles, trains, ships, etc., synthetic fibers such as polyester fibers and polyamide fibers, and natural fibers such as wool are used, among which seat sheets, ceiling materials, curtains, etc. Such vehicle interior materials are required to have characteristics such as weather resistance, flame retardancy, wear resistance, and light weight.

  Conventionally, as a method of imparting flame retardancy to a vehicle interior material, a method of coating a woven or knitted fabric made of synthetic fiber with a resin added with a halogen-based flame retardant or a vinyl chloride resin has been generally used. However, in the conventional method for imparting flame retardancy by post-processing in this way, not only the price as a product increases, but also a problem that harmful gas generated at the time of combustion causes a great burden on the human body and the environment. And the product weight increased.

  As a conventional technique for solving the above problems, for example, a polyester hollow fiber containing 0.2 to 1.5% by weight of a bifunctional phosphorus compound as a phosphorus element amount (for example, see Patent Document 1) is proposed. This polyester hollow fiber is said to be suitable for use as a material for vehicle interior materials such as automobile and train car seats. However, this polyester hollow fiber has a problem that its toughness is small and its wear resistance is weak because the fiber material is polyester.

In addition, a flame-retardant polyamide filament comprising a polyamide resin composition in which 98 parts by weight of a polyamide resin having a relative viscosity of 2 to 4 and 2 to 20 parts by weight of a triazine flame retardant having an average particle size of less than 5 μm is blended (for example, Patent Document 2). According to this technology, by adding 5 to 8 parts by weight of melamine cyanurate, it is possible to obtain a polyamido monofilament having a maximum strength of 4.4 cN / dtex and excellent in flame retardancy. It is said that this monofilament can be suitably used as an interior material for vehicles, aircrafts and the like. However, this technique is expected to be effective for monofilaments with a large single yarn fineness. However, in recent years, a single filament fineness used for improving the wear resistance and softness of vehicle interior materials is thin. There was no disclosure or suggestion about flame retardancy of filaments.
Japanese Patent Laid-Open No. 7-268726 JP 2002-173829 A

  The present invention has been achieved as a result of studying the solution of the above-mentioned problems in the prior art as a subject, and has physical properties such as strength, wear resistance, shock absorption, and chemical properties such as weather resistance and chemical resistance. The purpose of the present invention is to provide a woven or knitted vehicle interior material that is not only excellent in mechanical properties, but also has very little deterioration in flame retardancy during practical use.

In order to achieve the above object, according to the present invention, there is provided a woven or knitted fabric using a polyamide fiber containing 0.1 to 10% by weight of a triazine compound as at least a part of a constituent material, wherein the largest particle of the triazine compound is formed. The diameter is 10 μm or less, the average particle diameter is 0.1 to 5 μm, and the polyamide fiber is a multifilament having a single yarn fineness of 1.5 to 100 dtex and an entanglement (CF value) of 1.0 to 100 A vehicle interior woven or knitted fabric is provided.

In the vehicle interior material knitted fabric of the present invention,
The polyamide fiber has a triazine compound content of 0.1 to 2% by weight ,
It pre Symbol triazine compound is melamine cyanurate,
The polyamide fiber further contains 10 to 500 ppm of a copper compound as a copper metal amount, and the polyamide fiber further contains an organic or inorganic pigment in an amount of 0.1 to 1% by weight, both of which are mentioned as preferable conditions. These vehicular interior material knitted and knitted fabrics exhibit the best effects especially when applied to uses as vehicle seats and vehicle curtains.

  According to the present invention, as described below, not only is it excellent in physical properties such as strength, wear resistance and impact absorption, and chemical properties such as weather resistance and chemical resistance, but also while being put into practical use. It is possible to obtain a woven or knitted vehicle interior material with a very small deterioration in flame retardancy.

  The present invention will be specifically described below.

  The fibers constituting the vehicle interior material woven or knitted fabric of the present invention are required to be polyamide fibers having excellent chemical resistance and abrasion resistance and high toughness. By using the polyamide fiber as at least a part of the constituent material of the vehicle interior material woven or knitted fabric, it is possible to obtain a vehicle interior material woven or knitted fabric that is hardly deteriorated even in an alkaline environment or a friction environment and can be used for a long period of time.

  Examples of the polyamide in the present invention include nylon 4, nylon 6, nylon 11 polycondensed from aminocarboxylic acid and its lactam, and polynylon 4-6, nylon 6-6, nylon obtained by polycondensation of dicarboxylic acid and diamide. Known polyamides such as 6-10 can be used. In addition, the polyamide fiber may contain a copolymer compound, a different polymer, or the like as long as the effect of the present invention is not impaired, preferably 10% by weight or less, a light fastener, a flameproofing agent, a pigment, Various additives such as flame retardants, matting agents, and lubricants may be used.

  The single yarn cross section of the polyamide fiber used in the vehicle interior material woven or knitted fabric of the present invention may be an irregular cross section other than the round cross section, and the irregular cross sectional shape may be a flat type, a triangular type, a C type, a Y type, a dumpling. Examples include, but are not limited to, molds, hollow molds, or combinations thereof.

  The entanglement degree (CF value) of the polyamide fiber constituting the woven or knitted fabric of the vehicle interior material of the present invention needs to be 1.0 to 100. When the degree of entanglement is less than 1.0, the process passability in high-order processing is deteriorated, which is not preferable. When the degree of entanglement is greater than 100, loops are likely to occur, and it is difficult to perform high-order processing stably.

  The polyamide fiber used in the vehicle interior material woven or knitted fabric of the present invention contains a triazine compound in an amount of 0.1 to 10% by weight, preferably 0.1 to 4.5% by weight, more preferably 0.4 to 2% by weight. Is necessary to develop excellent flame retardant properties. If the content of the triazine compound contained in the polyamide multifilament is less than 0.1% by weight, the required flame retardancy cannot be obtained. Conversely, if it exceeds 10% by weight, the flame retardant effect is saturated. However, this is not preferable because the strength is lowered, and yarn breakage and fluff are generated to reduce the yield of yarn production.

  Examples of the triazine compound used in the present invention include melamines and cyanuric acids, and adducts of melamines and cyanuric acids. Examples of cyanuric acids include cyanuric acid and isocyanuric acid, as well as cyanuric acid derivatives such as trimethylcyanurate, triethylcyanurate, methylcyanurate, diethylcyanurate, trinormalpropylcyanurate, regardless of enol form or keto form. Can be used. Further, the cyanuric acids may be hydrates or anhydrides. Examples of melamines include melamine, ammelide, ammelin, formoguanamine, guanylmelamine, cyanomelamine, allylguanamine, melam, melem, melamine phosphate, and the like. Examples of the adduct of melamines and cyanuric acids include melamine cyanurate, which is an adduct of melamine and isocyanuric acid, but it may be an adduct of the melamines and cyanuric acids, preferably an equimolar adduct. The type is not limited. In addition, for example, the melamine and cyanuric acid salts obtained by mixing an aqueous solution of melamines and cyanuric acids to form a salt of both, and then filtering, contain unreacted melamines and cyanuric acids. Also good.

  Among these triazine-based compound flame retardants, cyanuric acid, isocyanuric acid, melamine, and melamicyanurate are preferably used, and melamine cyanurate is particularly preferably used from the viewpoint of flame retardancy and processability.

  The triazine compound added to the flame retardant polyamide multifilament of the present invention preferably has an average particle size of 0.1 to 5 μm, more preferably 0.1 to 4 μm, most preferably 0.1 to 2. .4 μm. Even if a triazine compound having a particle size of less than 0.1 μm is added to the polyamide polymer, the aggregated particles in the polyamide fiber are not less than 0.1 μm due to secondary aggregation, but more than 5 μm. It is difficult to produce a flame retardant polyamide fiber with good yield.

  The maximum particle size of the triazine compound is preferably 10 μm or less, more preferably 8 μm or less. When the triazine compound is used for the multifilament used in the vehicle interior material woven or knitted fabric of the present invention, if the maximum particle size of the triazine compound exceeds 10 μm, fibers having suitable physical properties for the vehicle interior material woven or knitted fabric are obtained. It becomes difficult to obtain stably.

  The triazine compound having the average particle size or the maximum particle size as described above can be obtained by a method of pulverizing the triazine compound with a ball mill or the like and then classifying it with a sieve.

  Further, in order to give the vehicle interior material woven or knitted fabric of the present invention flexibility, the polyamide fiber needs to be a multifilament having a single yarn fineness of 1.5 to 100 dtex.

  A technical feature that should be noted in the present invention is that a triazine compound having a maximum particle size within the above range is used, and even if the multifilament has a single yarn fineness that satisfies the range of the present invention, it has a high strength with good yarn production. A polyamide fiber containing a triazine compound and having a single yarn fineness satisfying the scope of the present invention has a larger fiber surface area than a fiber having a large single yarn fineness. Therefore, when the vehicle interior material is burned, the contact area between the flame retardant triazine compound and the flame is increased, and an excellent flame retardant effect is exhibited. For this reason, the single fiber fineness of the polyamide fiber of the present invention is required to be 1.5 to 100 dtex, preferably 1.5 to 80 dtex, more preferably 3 to 60 dtex. When the single yarn fineness is less than 1.5 dtex, the single yarn thickness is smaller than the size of the triazine compound, and there is a possibility that fluff and yarn breakage may occur in the fiber manufacturing process. Moreover, when the single yarn fineness exceeds 100 dtex, the texture of the vehicle interior material woven or knitted fabric obtained may be stiff.

  In addition, the flame retardancy can be further improved by using various flame retardants together with the triazine compound added to the polyamide fiber used in the woven or knitted vehicle interior material of the present invention. Preferred flame retardants used in combination include alkali metal hypophosphites or earth metal hypophosphites such as sodium hypophosphite, potassium hypophosphite, calcium hypophosphite, barium hypophosphite, hypophosphite. Examples thereof include magnesium phosphate, aluminum hypophosphite, aluminum hydroxide and magnesium hydroxide, and the addition amount thereof is usually 0.1 to 10% by weight, preferably 0.5 to 3% by weight. .

  Furthermore, in order to prevent the weather resistance deterioration and heat resistance and strength deterioration of the vehicle interior material woven or knitted fabric of the present invention, it is preferable that the polyamide fiber contains 10 to 500 ppm of a copper compound as a copper metal amount. When the amount of copper metal is less than 10 ppm, the effect of improving the weather resistance and heat resistance by the copper compound is low, and when the amount of copper metal exceeds 500 ppm, there is a risk that the copper compound becomes a foreign substance and the spinning performance is deteriorated. . The amount of copper metal contained is preferably 20 to 300 ppm, more preferably 30 to 250 ppm. Examples of the copper compound include, but are not limited to, copper iodide, copper chloride, copper bromide, and the like, and conventionally known inorganic and organic copper salts and simple copper metals can be used.

  The polyamide fiber may contain other heat-resistant agents in addition to the copper compound. Examples of the heat-resistant agent include amine compounds, mercapto compounds, phosphorus compounds, hindered phenol compounds, halogen compounds, alkali metal halides, alkaline earth metal halides, etc., but are not limited thereto, and these Two or more types may be combined. Examples of amine compounds include N, N′-diphenyl-p-phenylenediamine, diallyl-p-phenylenediamine, and di-β-naphthyl-p-phenylenediamine. Examples of mercapto compounds include 2-mercapto. Benzimidazole and 2-mercaptothiazole can be exemplified, and examples of the phosphorus compound include organic and inorganic phosphoric acids such as stearyl phosphate, phosphorous acid or a salt thereof, but are not limited thereto. The heat-resistant agent may be added separately, or may be added after forming a complex. As the heat-resistant agent added together with the copper compound, a mercapto compound is preferable, and 2-mercaptobenzimidazole is particularly preferably combined. The addition amount of the mercapto compound at that time is preferably 300 to 3000 ppm from the viewpoints of thermal oxidative degradation prevention properties and yarn production properties.

  The sulfuric acid relative viscosity of the polyamide fiber is preferably in the range of 3 to 4.5. It is difficult to obtain polycapramide fibers having a high degree of polymerization with a relative viscosity of sulfuric acid exceeding 4.5 with high productivity and low cost. Moreover, when the relative viscosity of sulfuric acid is less than 3, it is difficult to obtain a fiber having a desired strength, and there is a possibility that the physical properties are greatly deteriorated during long-time storage.

  As long as the above-described conditions of the present invention are satisfied, there are no particular rules regarding various physical properties such as elongation and boiling water shrinkage of the polyamide fiber.

  Moreover, the polyamide fiber used for the vehicle interior material woven or knitted fabric of the present invention preferably further contains 0.1 to 1% by weight of an organic or inorganic pigment, more preferably 0.2 to 0.8% by weight. . By laying the polyamide fiber in the original, there are advantages that there is no need for dyeing, no dye waste liquid is generated at low cost, and it is possible to obtain a vehicle interior material with a small load on the environment. The kind of pigment to be added is not particularly limited, and known inorganic and organic pigments such as carbon black can be added. Moreover, the vehicle interior material woven or knitted fabric using the polyamide fiber to which the pigment is added also has an advantage that the weather resistance is improved. When the amount of pigment added is less than 0.1% by weight, there is a possibility that fibers having the desired color tone cannot be obtained. On the other hand, when the added amount exceeds 1% by weight, there is a possibility that the pigment becomes a foreign substance and cannot be obtained with good fiber production in the fiber production process.

  Next, although an example of the manufacturing method of the polyamide fiber used for the vehicle interior material woven or knitted fabric of the present invention will be described, the manufacturing method of the polyamide fiber is not limited to this.

  Mixing of the polyamide chip with the flame retardant, the copper compound, and the original pigment may be performed at any stage from immediately after completion of the polycondensation of the polyamide until the polyamide fiber is spun from the spinneret. For example, a flame retardant etc. is added and kneaded into molten polyamide immediately after completion of polycondensation to form a chip, followed by solid phase polymerization, then melt spinning and stretching with an extruder type spinning machine, or a dried polyamide chip, A method in which a flame retardant is kneaded and melt-spun / stretched, or a master chip containing a high concentration of flame retardant by melt-kneading is manufactured. There are methods such as stretching. When the master chip is formed, it is preferable to use a twin-screw extruder type extruder or a static mixer at the time of spinning in order to finely disperse the flame retardant.

  After the yarn spun from the base is cooled and solidified by a cooling device such as cold air, the oil agent is applied, wound around a take-up roller rotating at 300 to 2000 m / min and wound up once, or continuously 2 It is hot-drawn in multiple stages and is wound by a winder. The hot drawing temperature is made at a glass transition point of -10 ° C to -50 ° C of the polyamide fiber, and the draw ratio is made in the range of 2.5 to 7 times to produce the above-mentioned properties of the polyamide multifilament fiber. Thus, the polyamide fiber used for the vehicle interior material woven or knitted fabric is obtained.

  There are no particular limitations on the method for producing the woven or knitted fabric for vehicle interior of the present invention. For example, a method for producing a shuttle loom, a shuttleless loom, a tricot or a Russell machine can be used. Further, the woven or knitted structure can be selected from various woven and knitted structures such as a plain structure, an oblique structure, a satin structure, a pile structure, a flat knitting, a rib knitting, a garter knitting, a denby knitting, a cord knitting, and an atlas knitting. However, the present invention is not limited to these.

  Next, although an example of the manufacturing method of the vehicle interior material woven or knitted fabric of the present invention is shown, the manufacturing method is not limited to this.

  Use the polyamide fiber obtained by the above-mentioned method so that it is at least a part of the constituent materials, preferably 50% or more of the total constituent materials, and adjust the weave density of the warp and weft so that the desired weight per unit area is obtained. Then, weaving using a shuttleless loom. The warp tension between the work beam and the cross beam applied at the time of weaving is not particularly limited, but a preferable range is 0.1 to 2 cN / dtex. On the other hand, the weft is applied with tension from the time when the yarn is unwound from the raw cheese to the time when the weft is driven, but the tension range at that time is not particularly determined. The woven or knitted fabric may be dyed or printed as necessary, and the dyeing method and dye are not particularly limited.

  Thus, the vehicle interior material woven or knitted fabric of the present invention can be obtained.

  Hereinafter, embodiments of the present invention will be described in more detail by way of examples. The definition and measurement method of the characteristics used in the specification text and examples are as follows.

[Fineness, strength, elongation, shrinkage of boiling water of polyamide multifilament]
It measured based on JIS L1017 (2002).

[Confounding degree of polyamide multifilament]
It measured based on JIS L1013 (1999).

[Maximum particle size and average particle size of triazine compounds]
The maximum particle size and average particle size of the triazine compound powder can be measured using the following two methods.

  (1) The maximum particle size and the average particle size were determined by measuring using a particle size distribution analyzer (SK Laser Micron Sizer: manufactured by Seishin Enterprise).

  (2) The triazine-based compound powder was gold-deposited using an ion coater (IB-3 manufactured by Eiko Engineering). The prepared sample was observed using SEM (ABT-55 manufactured by Topcon Corporation), the maximum diameter of 100 particles was measured, the average was the average particle diameter, and the maximum diameter of the largest particle was the maximum particle diameter.

[Sulfuric acid relative viscosity]
A polymer sample was dissolved in 98% sulfuric acid at a concentration of 1% by weight, measured at 25 ° C. using an Ostwald viscometer, and determined according to the following formula.

Sulfuric acid relative viscosity (ηr) = (sample solution dropping time) / (sulfuric acid solution dropping time)
Each sample was measured twice and the average value was adopted.

[Limited oxygen index (LOI)]
The LOI of the woven or knitted fabric after weaving or after knitting was measured in accordance with JIS L1091 (2002) Textile Combustibility Test Method E (oxygen index method test). If the LOI is 25 or more, the required flame retardancy is satisfied.

[LOI measurement after weather resistance test]
The woven or knitted fabric left outdoors for 800 days was measured by the above-mentioned critical oxygen index measurement method.

[Example 1]
While continuously measuring a nylon polymer having a relative viscosity of sulfuric acid of 3.8 and a nylon 6 master polymer to which 10% by weight of melamine cyanurate powder having an average particle diameter of 1.2 μm and a maximum particle diameter of 4.5 μm was added, And continuously fed to a twin screw extruder at 285 ° C. at a ratio of 9: 1. 100 ppm of copper iodide was added to each polymer.

  The melted polymer is kneaded with an eight-stage static mixer through a pipe at 285 ° C, weighed with a gear pump to a total fineness of 1500 dtex, guided to a spin pack at 285 ° C, and passed through a 20 micron cut filter in the pack. And extruded from a die having 200 single holes with a hole diameter of 0.5 mm and a hole length of 1.1 mm.

  After passing through a heated cylinder having a length of 20 cm and an ambient temperature of 310 ° C. provided with a spun yarn under the die, solidified by blowing cold air at 30 ° C. at a rate of 40 m / min using a uniflow type chimney, Oil was applied with an oil roller. The yarn provided with the oil was wound up by a first roller (non-heated) having a surface speed of 475 m / min, and then subjected to a stretching process continuously.

The second roller (55 ° C.) at a speed of 500 m / min, the third roller (90 ° C.) at a speed of 1375 m / min, the fourth roller (155 ° C.) at a speed of 1800 m / min, the speed after passing through the first roller 2000 m / min fifth rollers (195 ° C.) of, after stretching by Kyosu continuously the speed 1950 m / min sixth roller (130 ° C.), injects high pressure air 3 kg / cm ² by interlacing processor Thus, a nylon 6 multifilament having an entanglement degree (CF value) of 20 and a total fineness of 1500 dtex was obtained. The characteristics of the obtained nylon 6 multifilament are shown in Table 1.

  The obtained nylon 6 multifilament was used as warp and weft, and the fabric was woven into a plain structure at a rotational speed of 1000 rpm using a water jet loom (ZW303) manufactured by Tsudakoma. The warp was warped at a speed of 300 m / min, and the woven densities of the warp and the weft were 10 / inch and 10 / inch, respectively. The obtained dough was heat-treated at 180 ° C. for 1 minute in a constant length state in a dry heat furnace to obtain a woven fabric. The properties of the resulting fabric were evaluated, and the results are shown in Table 1.

[Example 2]
The addition of 300 ppm of copper iodide to each polymer, the use of a mouthpiece with 20 holes, and high pressure air of 8 kg / cm ² were sprayed by a confounding treatment device to achieve a confounding degree (CF value) of 60. Except that, the same procedure as in Example 1 was performed.

  The properties of the obtained nylon 6 multifilament and woven fabric were evaluated, and the results are shown in Table 1.

[Example 3]
Adding 50 ppm of copper iodide to each polymer, mixing nylon 6 polymer and nylon 6 master polymer in a ratio of 2: 8, and using the nozzle with 20 holes. Except for this, the same procedure as in Example 1 was performed.

  The properties of the obtained nylon 6 multifilament and woven fabric were evaluated, and the results are shown in Table 1.

[Example 4]
The same procedure as in Example 1 was performed except that a melamine cyanurate powder having an average particle size of 4.3 μm and a maximum particle size of 8.1 μm was used at the time of producing the master chip, and that a die having 60 holes was used. .

  The properties of the obtained nylon 6 multifilament and woven fabric were evaluated, and the results are shown in Table 1.

[Example 5]
The nylon 6 multifilament obtained in Example 1 was used as the knitting yarn, and the fabric was knitted using a 5G 9G Russell machine (RM-6F) manufactured by KARL MAYER. The obtained fabric was heat treated at 180 ° C. for 1 minute in a constant length state in a dry heat furnace to obtain a knitted fabric. The properties of the resulting fabric were evaluated and the results are shown in Table 2.

[Example 6]
The nylon 6 multifilament obtained in Example 2 was knitted in the same manner as in Example 5 to obtain a knitted fabric. The properties of the obtained nylon 6 multifilament and knitted fabric were evaluated, and the results are shown in Table 2.

[Example 7]
The nylon 6 multifilament obtained in Example 3 was knitted in the same manner as in Example 5 to obtain a knitted fabric. The properties of the obtained nylon 6 multifilament and knitted fabric were evaluated, and the results are shown in Table 2.

[Example 8]
The nylon 6 multifilament obtained in Example 4 was knitted in the same manner as in Example 5 to obtain a knitted fabric. The properties of the obtained nylon 6 multifilament and knitted fabric were evaluated, and the results are shown in Table 2.

[Comparative Example 1]
The same procedure as in Example 1 was performed except that a single-screw extruder type extruder was used without using a master chip. Flame retardant (Daikyo Chemical Bigol NA-7) 40%, water 58.8%, hard finish (Sumitomo Chemical Sumitex Resin M-3) 1%, catalyst (Sumitomo Chemical Sumitex Accelerator ACX) ) Dip with a 0.2% solution to a pickup of 70% and dry at 140 ° C. for 2 minutes.

  The properties of the obtained nylon 6 multifilament and woven fabric were evaluated, and the results are shown in Table 1.

[Comparative Example 2]
The same procedure as in Example 1 was performed, except that a base having 10 holes was used and the entanglement degree was set to 0 without applying the entanglement processing apparatus.

  The properties of the obtained nylon 6 multifilament and woven fabric were evaluated, and the results are shown in Table 1.

[Comparative Example 3]
The melamine cyanurate powder having an average particle size of 7.2 μm and a maximum particle size of 13.6 μm was used at the time of producing the master chip, and nylon 6 polymer and nylon 6 master polymer were mixed at a ratio of 9.95: 0.05 and spun. It was subjected to the process, high pressure air of 15 kg / cm ² was jetted by the entanglement processing device to make the degree of entanglement (CF value) 120, and the respective roller speeds were the first roller 660 m / min and the second roller 695 m / Min, the third roller 1470 m / min, the fourth roller 1850 m / min, the fifth roller 2250 m / min, and the sixth roller 2150 m / min.

  The properties of the obtained nylon 6 multifilament and woven fabric were evaluated, and the results are shown in Table 1.

[Comparative Example 4]
The same procedure as in Example 1 was conducted, except that a base with 300 holes was used and the polymer was weighed so that the single yarn fineness was 1.0 dtex and the total fineness was 300 dtex.

  The properties of the obtained nylon 6 multifilament and woven fabric were evaluated, and the results are shown in Table 1.

[Comparative Example 5]
Spinning was performed using only master chips having a relative viscosity of 3.7 obtained by kneading 14% by weight of melamine cyanurate powder having the maximum average particle diameter shown in Table 1 with molten nylon polymer, and Other than changing the roller speed to the first roller 660 m / min, the second roller 695 m / min, the third roller 1470 m / min, the fourth roller 1850 m / min, the fifth roller 2250 m / min, and the sixth roller 2150 m / min Was carried out in the same manner as in Example 1.

  The properties of the obtained nylon 6 multifilament and woven fabric were evaluated, and the results are shown in Table 1.

[Comparative Example 6]
The nylon 6 multifilament obtained in Comparative Example 1 was knitted in the same manner as in Example 5 to obtain a knitted fabric. The properties of the obtained nylon 6 multifilament and knitted fabric were evaluated, and the results are shown in Table 2.

[Comparative Example 7]
The nylon 6 multifilament obtained in Comparative Example 2 was knitted in the same manner as in Example 5 to obtain a knitted fabric. The properties of the obtained nylon 6 multifilament and knitted fabric were evaluated, and the results are shown in Table 2.

[Comparative Example 8]
The nylon 6 multifilament obtained in Comparative Example 3 was knitted in the same manner as in Example 5 to obtain a knitted fabric. The properties of the obtained nylon 6 multifilament and knitted fabric were evaluated, and the results are shown in Table 2.

[Comparative Example 9]
The nylon 6 multifilament obtained in Comparative Example 4 was knitted in the same manner as in Example 5 to obtain a knitted fabric. The properties of the obtained nylon 6 multifilament and knitted fabric were evaluated, and the results are shown in Table 2.
The properties of the nylon 6 multifilament and the fabric were evaluated and the results are shown in Table 2.

[Comparative Example 10]
The nylon 6 multifilament obtained in Comparative Example 5 was knitted in the same manner as in Example 5 to obtain a knitted fabric. The properties of the obtained nylon 6 multifilament and knitted fabric were evaluated, and the results are shown in Table 2.

  As is apparent from the results of Tables 1 and 2, the woven or knitted fabrics of Examples 1 to 4 and 5 to 8 satisfying the conditions of the present invention were excellent in flame retardancy after weaving even without post-processing. It is a vehicle interior material woven or knitted fabric, and its flame retardancy performance hardly changes even after being subjected to a deterioration test.

  However, as shown in Comparative Examples 1 and 6, a woven or knitted fabric imparted with flame retardancy by post-processing becomes a vehicular interior material woven fabric having a high LOI immediately after the flame retardant processing and excellent in flame retardancy. The flame retardance was severe when exposed for a long time.

  As in Comparative Examples 2 and 7, when the single yarn fineness and the entanglement degree do not satisfy the specified values of the present invention, it is possible to collect polyamide multifilaments, but fluff frequently occurs in the polyamide multifilament manufacturing process. However, it has been difficult to pass through the weaving and knitting process stably.

  As in Comparative Examples 3 and 8, when the content of the triazine compound is less than the provisions of the present invention, the required flame retardancy cannot be obtained, and it is possible to collect polyamide multifilaments. However, fluff was frequently generated in the polyamide multifilament manufacturing process, and fibers could not be collected stably.

  As in Comparative Examples 4 and 9, when the single yarn fineness is less than the provisions of the present invention, fuzz and yarn breakage frequently occur in the polyamide multifilament manufacturing process, and a polyamide multifilament worthy of practical use can be obtained. There wasn't.

  As in Comparative Examples 5 and 10, when the triazine compound content exceeds the provisions of the present invention, it was possible to collect the polyamide multifilament, but the occurrence of fluff frequently occurred in the polyamide multifilament manufacturing process, Fibers could not be collected stably.

  The woven or knitted vehicle interior material of the present invention is not only excellent in physical properties such as strength, wear resistance and impact absorption, but also in chemical properties such as weather resistance and chemical resistance, and is difficult while being put to practical use. Since it has the characteristic that the fuel performance deterioration is very small, it can be effectively used as a woven or knitted fabric such as a vehicle seat and a vehicle curtain.

Claims (7)

A woven or knitted fabric using a polyamide fiber containing 0.1 to 10% by weight of a triazine compound as at least a part of a constituent material, wherein the triazine compound has a maximum particle size of 10 μm or less and an average particle size of 0.1. An interior material woven or knitted fabric for vehicles , wherein the polyamide fiber is a multifilament having a single yarn fineness of 1.5 to 100 dtex and an entanglement (CF value) of 1.0 to 100. The vehicle interior material woven or knitted fabric according to claim 1, wherein the content of the triazine compound in the polyamide fiber is 0.1 to 2% by weight. The vehicle interior material woven or knitted fabric according to claim 1 or 2 , wherein the triazine compound is melamine cyanurate. The vehicle interior material woven or knitted fabric according to any one of claims 1 to 3 , wherein the polyamide fiber further contains 10 to 500 ppm of a copper compound as a copper metal amount. The vehicle interior material knitted or knitted fabric according to any one of claims 1 to 4 , wherein the polyamide fiber further contains an organic or inorganic pigment in an amount of 0.1 to 1% by weight. A vehicle seat seat comprising the vehicle interior material woven or knitted fabric according to any one of claims 1 to 5 . A vehicle curtain comprising the vehicle interior material woven or knitted fabric according to any one of claims 1 to 5 .