RU2710114C1 - Fabric tape and fibrous product - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: purpose of invention is achieved by means of fabric tape produced from organic fibre demonstrating duration of residual burning 2.0 seconds or less according to measurement of flammability by method from document JIS L1091-1999 A-4 (method of 12-second heating).

EFFECT: purpose of invention consists in production of fabric tape characterized by fire resistance, as well as fibrous product.

21 cl, 3 dwg, 1 tbl

Description

FIELD OF THE INVENTION

The present invention relates to a fabric tape suitable for use as an integral element of a fibrous product and characterized by fire resistance, as well as to a fibrous product obtained using a fabric tape.

State of the art

A conventional fabric tape suitable for use as an integral element of a fibrous product has been proposed, for example, in IPL 1.

Meanwhile, in the areas of protective clothing, fire-resistant clothing, fire-fighting clothing, rescue clothing, fire-resistant work clothing, police uniforms, official clothing of the self-defense forces, military uniforms and the like, fire-retardant properties are required.

Citation list

Sources of Patent Literature

IPL 1: JP-A-2002-249959

SUMMARY OF THE INVENTION

Technical problem

The present invention has been made taking into account the above-mentioned premises, and the aim of the invention is to provide a fabric tape suitable for use as a component of a fibrous product and characterized by fire resistance, and a fibrous product obtained using such a fabric tape.

Solution of a problem

The inventors of the present invention have carried out extensive and intensive studies aimed at achieving the aforementioned goal. As a result, it was found that when flame retardant fiber is used to produce fabric tape, a flame retardant fabric tape can be obtained, further extensive and intensive studies have been carried out, and thus the present invention has been made.

The invention describes a “fabric tape comprising organic fiber and characterized in that the fabric tape has a residual burning time of 2.0 seconds or less, according to a flammability measurement according to the procedure of JIS L1091-1999 A-4 (12 second heating method) .

In the invention, it is preferred that the fabric tape exhibits a residual smoldering duration of 3.0 seconds or less and a carbonization length of 10 cm or less according to a flammability measurement according to the method of JIS L1091-1999 A-4. In addition, it is preferable that the width of the fabric tape be in the range of 1 to 30 cm. It is preferred that the fabric tape is formed by knitted fabric. It is preferred that the fabric tape comprise a fiber of a fully aromatic polyamide. It is preferable that the fabric tape included fiber from a fully aromatic meta-type polyamide in an amount of 30% by weight. or more based on the weight of the fabric tape. It is preferable that the fabric tape included a fiber from a fully aromatic meta-type polyamide in an amount in the range from 50 to 99% wt. based on the weight of the fabric tape. It is preferable that the fabric tape included a fiber from a fully aromatic para-type polyamide in an amount in the range from 2 to 20% wt. based on the weight of the fabric tape. It is preferred that the fabric tape be subjected to a dyeing treatment.

In the fabric tape of the invention, it is preferred that the fabric tape has a bending portion. In such a case, it is preferable that the propagation direction of the bending portion is consistent with the longitudinal direction or the transverse direction of the fabric tape. In addition, it is preferable that the width of the bending portion is in the range of 0.3 to 20 cm. It is preferred that the bending portion has a tensile strength of 10% or more. It is preferred that the bending portion has a bending coefficient determined in accordance with the formula below and comprising 1.1 or more:

Bending coefficient = [B + (A × 2 × (number of bendings))] / B

A: bending section thickness (cm)

B: bending width (cm)

In the fabric ribbon of the invention, it is preferred that the fabric ribbon have a mesh portion. In this case, it is preferable that the area in the form of a grid was characterized by a fraction of holes of 20% or more.

In addition, it is preferable that the section in the form of a mesh was characterized by a width in the range from 1 to 5 cm and continued in the longitudinal direction of the fabric tape. It is preferable that the fabric tape has sections of non-mesh, characterized by a fraction of holes of 10% or less, on both sides of the section in the form of a mesh, continuing in the longitudinal direction. It is preferred that the fabric tape has a fabric covering at least a portion of the mesh portion. It is preferred that this matter be able to open and close.

In accordance with the invention, a fibrous product is described comprising the aforementioned fabric tape, which is any fibrous product from the group consisting of protective clothing, fireproof fireproof clothing, fireproof clothing, rescue clothing, work clothing, police uniforms, official clothing of the self-defense forces and military uniforms .

Advantageous Effects Achieved in the Present Invention

By using the present invention, a fabric tape suitable for use as a component of the fibrous product and characterized by fire resistance and a fibrous product can be obtained.

Brief Description of the Drawings

FIG. 1. An example of a perspective image of a fabric tape of the present invention. The fabric tape continues in the longitudinal direction (L direction).

FIG. 2. An example of a structure diagram of knitted fabric that can be used in the manufacture of a fabric tape according to the invention.

FIG. 3. An example image of a fabric tape according to the invention in perspective. The fabric tape continues in the longitudinal direction.

Description of Embodiments

Hereinafter, one embodiment of the present invention will be described in detail. In the present invention, it is necessary that the fabric tape exhibits a residual burning time of 2.0 seconds or less (preferably from 0.001 to 1.0 seconds) according to the measurement of flammability according to the method from JIS L1091-1999 A-4 (12 second heating method). In the case of a residual burning time of more than 2.0 seconds, satisfactory fire resistance cannot be ensured, which can lead to a risk of ignition of the fabric tape when exposed to a flame and the like.

In particular, it is preferred that the fabric tape exhibits a self-smoldering duration of 3.0 seconds or less and a carbonization length of 10 cm or less according to the measurement of flammability according to the method from JIS L1091-1999 A-4 (12 second heating method).

To obtain such fire resistance, it is preferred that a fire resistant material is used as at least a portion of the basic fabric material. The fabric tape may be processed to provide fire resistance.

Examples of flame-retardant materials include meta-type all-aromatic polyamide fibers, para-type all-aromatic polyamide fibers, fire-retardant cellulose fibers, modified polyacrylonitrile fibers, fire-retardant polyacrylonitrile fibers and flame retardant vinyl fibers, and are not specifically limited. When processing to impart fire resistance, no special restrictions are imposed on the material.

More preferably, the fabric tape includes at least a fully aromatic polyamide fiber. In addition, it is more preferable that the fiber from a fully aromatic meta-type polyamide is included in the fabric tape in an amount of 30% by weight. or more (more preferably in the range from 50 to 99% by weight) based on the weight of the fabric tape. In the event that the mass percentage of fiber from a fully aromatic meta-type polyamide is less than 30% by weight. based on the weight of the fabric tape, it is possible that satisfactory fire resistance cannot be obtained, and when exposed to the flame, carbonization will occur, so that the fabric tape becomes brittle.

In addition, it is preferable that the fabric tape included fiber from a fully aromatic para-type polyamide in an amount of from 2 to 20% wt. based on the weight of the fabric tape. In the event that the mass percentage of fiber from a fully aromatic para-type polyamide is less than 2% wt. Based on the weight of the fabric tape, it is possible that the fabric tape will exhibit tangible shrinkage under the influence of a flame. On the contrary, with a mass percentage of more than 20% wt. it is possible that the fabric tape will harden, which will result in poor wearing comfort.

It is preferred that the fabric tape be formed only by a fiber of a fully aromatic meta-type polyamide and / or a fiber of a fully aromatic para-type polyamide. In particular, it is preferable that the fabric tape be obtained only from a yarn spun by mixing fibers from a fully aromatic meta-type polyamide and fibers from a fully aromatic para-type polyamide.

The fiber from a fully aromatic meta-type polyamide is a fiber obtained from a polymer in which 85 mol%. or more repeating unit units are m-phenylene isophthalamide. The fully aromatic meta-type polyamide may be a copolymer containing a third component in an amount of less than 15 mol%.

A fully aromatic meta-type polyamide can be prepared using a well-known interfacial polymerization process, and preferably a polymer is used that demonstrates, in terms of degree of polymerization, an intrinsic viscosity (IV) in the range of 1.3 to 1.9 dl / g according to measured in the form of a solution in N-methyl-2-pyrrolidone at a concentration of 0.5 g / 100 ml.

A fully aromatic meta-type polyamide may include the onium salt of alkylbenzenesulfonic acid. Preferable examples of the onium salts of alkylbenzene sulfonic acids include compounds such as tetrabutylphosphonium geksilbenzolsulfonat, geksilbenzolsulfonat tributilbenzilfosfoniya, tetraphenylphosphonium dodecylbenzenesulfonate, tributiltetradetsilfosfoniya dodecylbenzene sulfonate, tetrabutylphosphonium dodecylbenzene sulfonate and dodecylbenzene tributilbenzilammoniya. Of these, tetrabutylphosphonium dodecylbenzenesulfonate or tributylbenzylammonium dodecylbenzenesulfonate are particularly preferred, since they are readily available and are characterized by excellent heat resistance and high solubility in N-methyl-2-pyrrolidone.

To obtain a satisfactory effect of improving the stainability, the amount of onium salt of alkylbenzenesulfonic acid present is preferably 2.5 mol%. or more (more preferably in the range from 3.0 to 7.0 mol%) per mol of poly-m-phenylene isophthalamide.

As for the method of mixing poly-m-phenyleneisophthalamide with the onium salt of alkylbenzenesulfonic acid, a method is used in which the poly-m-phenyleneisophthalamide is mixed and dissolved in a solvent, and then the onium salt of alkylbenzenesulfonic acid is dissolved in this solvent, or similar methods, since any method may be used. Fiber is formed from the spinning solution thus obtained using a conventional method.

In order to improve dyeability and resistance to bleaching and fading and the like in a polymer used in a fiber of a fully aromatic meta-type polyamide, which has an aromatic polyamide backbone containing repeating structural units of the formula (1) below, as a third component with the aromatic polyamide backbone, an aromatic diamine component other than the main repeating units constituting the polymer or copolymerized can be copolymerized exponentials in the form of an acid halide of an aromatic dicarboxylic acid so that the amount of the third component is from 1 to 10 mol%. calculated on the total number of moles of repeating structural units of aromatic polyamide.

- (NH-Ar1-NH-CO-Ar1-Co) - ... Formula (1)

where Ar1 is a divalent aromatic group containing a linking group at a position other than the meta position or a direction parallel to the axis.

In addition, another component may be copolymerized as the third component. Specific examples of aromatic diamines of formula (2) or (3) include p-phenylenediamine, chlorphenylenediamine, methylphenylenediamine, acetylphenylenediamine, aminoanisidine, benzidine, bis (aminophenyl) ether, bis (aminophenyl) sulfone, diaminobenzanilide and diaminoazobenzene. Specific examples of aromatic dicarboxylic acid dichlorides described by formulas (4) and (5) include terephthaloyl chloride, 1,4-naphthalenedicarbonyl chloride, 2,6-naphthalenedicarbonyl chloride, 4,4'-biphenyldicarbonyl chloride, 5-chloroisophthaloylchloride bis (5) ) ether.

H ₂ N-Ar2-NH ₂ ... Formula (2)

H ₂ N-Ar2-Y-Ar2-NH ₂ ... Formula (3)

XOC-Ar3-COX ... Formula (4)

XOC-Ar3-Y-Ar3-COX ... Formula (5)

where Ar2 is a divalent aromatic group other than Ar1, Ar3 is a divalent aromatic group other than Ar1, Y is at least one representative selected from an atom or functional group selected from the group consisting of an oxygen atom, a sulfur atom, and alkylene group, and X represents a halogen atom.

The degree of crystallinity of the meta-type fully aromatic polyamide fiber is preferably in the range of 5 to 35%, since then the absorption of the dye is excellent, so that the desired color can easily be achieved even using a reduced amount of dye or even under poor dyeing conditions. In addition, the degree of crystallinity is more preferably in the range of 15 to 25%, since then localization of the dye on the surface is unlikely to occur, and high resistance to discoloration and fading will be obtained, and in addition, the geometric dimensions required can be ensured. for practical use.

The level of residual solvent in the fiber from a fully aromatic meta-type polyamide is preferably 0.1% wt. or less, since in this case the excellent fire resistance of the fiber from a fully aromatic meta-type polyamide does not suffer and the dye is unlikely to be localized on the surface, and a high resistance to discoloration and fading will be obtained.

A meta-type aromatic polyamide fiber can be made using the process mentioned below. By using the method mentioned below, the degree of crystallinity and the level of residual solvent can be achieved, which lie in the respective respective ranges indicated above.

As for the polymerization method for the meta-type polymeric fully aromatic polyamide, there are no particular restrictions on this method, and, for example, the solution polymerization method or the interfacial polymerization method described in JP-B-35-14399 can be used. US patent No. 3,360,595, publication JP-B-47-10-1063 and similar documents.

No particular restrictions are imposed on the spinning solution, but a solution in an amide solvent containing a polymer aromatic copolyamide obtained by performing the aforementioned polymerisation in solution, interfacial polymerization and the like can be used, or a solution obtained by isolating the polymer from the above polymerization solution and dissolving the polymer in an amide solvent.

As examples of amide solvents used, N, N-dimethylformamide, N, N-dimethylacetamide, N-methyl-2-pyrrolidone (NMP) and dimethyl sulfoxide can be mentioned, but N, N-dimethylacetamide is particularly preferred.

If the solution of the polymer copolymerized aromatic polyamide obtained as described above additionally contains alkali metal salts or alkaline earth metal salts, this solution is stabilized and can be advantageously used with a higher concentration at low temperatures. The amount of alkali metal salt and alkaline earth metal salt is preferably 1% wt. or less (more preferably 0.1% by weight or less) based on the weight of the polymer solution.

At the stages of spinning and coagulation, the spinning solution obtained above (a solution of a polymeric fully aromatic meta-type polyamide) is released into the coagulation liquid for coagulation.

As for the spinning machine, no particular restrictions are imposed on it, and a conventional wet spinning machine can be used. In addition, with regard to the number of spinning holes of the die, the arrangement of these holes, the shape of the hole, and the like, no special restrictions are imposed on them as long as wet spinning can be stably carried out, and, for example, multi-hole can be used for hydrated cellulose yarn a die having from 1000 to 30000 holes and characterized by a diameter of the spinning hole in the range from 0.05 to 0.2 mm, and the like.

In addition, the temperature of the spinning solution (a solution of a polymeric fully aromatic meta-type polyamide) upon release from the die is preferably in the range from 20 to 90 ° C.

An amide solvent substantially free of inorganic salts (preferably an aqueous solution having an NMP concentration of from 45 to 60% by weight) is used as the coagulation bath used in the preparation of the fiber at a bath solution temperature in the range of 10 to 50 ° C. If the concentration of the amide solvent (preferably NMP) is less than 45% by weight, it is possible that a structure having a thick shell will be disadvantageously formed, so that the washing efficiency at the washing stage is reduced, which makes it difficult to reduce the level of residual solvent in the fiber . On the other hand, in the case where the concentration of the amide solvent (preferably NMP) is more than 60% by weight, it is possible that coagulation cannot be achieved uniformly throughout the interior of the fiber, which will make it difficult to reduce the level of residual solvent in the fiber. The immersion time of the fiber in the coagulation bath is preferably in the range from 0.1 to 30 seconds.

Then, in a plastic drawing bath including an aqueous solution containing an amide solvent (preferably NMP) having a concentration in the range of 45 to 60% by weight, at a bath solution temperature in the range of 10 to 50 ° C., the fiber is drawn in a stretch ratio of range from 3 to 4 times. After drawing, the fiber is washed well using an aqueous solution having an NMP concentration in the range of 20 to 40% by weight, at a temperature in the range of 10 to 30 ° C., and then in a bath of warm water at a temperature in the range of 50 to 70 ° FROM.

After washing, the fiber is subjected to dry heat treatment at a temperature in the range from 270 to 290 ° C, which leads to the production of a fiber from a fully aromatic meta-type polyamide that meets the requirements for the degree of crystallinity and the level of residual solvent according to the corresponding corresponding ranges indicated above.

In a fully aromatic meta-type polyamide fiber, the fiber can be either a continuous fiber (multifilament yarn) or a short fiber. In particular, in view of mixing with another fiber, preferably a short fiber with a fiber length of 25 to 200 mm. In addition, the fineness of a single fiber is preferably in the range of 1 to 5 dtex.

Examples of commercially available meta-type fully aromatic polyamide fiber products include Conex (trade name), Conex neo (trade name) and Nomex (trade name).

The para-type fully aromatic polyamide fiber can be represented by Technora (trade name), Kevlar (trade name) and Twaron (trade name) products and is a fiber obtained from polyamide containing an aromatic ring in the main chain and can be obtained from poly p-phenylene terephthalamide (PPTA) or copoly-para-phenylene-3,4'-oxydiphenylene terephthalamide (PPODPA), which is of the copolymer type.

In the fabric ribbon of the invention, the first embodiment has a bending portion. In the present invention, the term “bending portion” means that when looking at the cross section of the fabric tape shown in FIG. 1, sections of scars on the upper surface and sections of scars on the lower surface are alternately formed (that is, a corrugated surface is formed). Due to the presence of such a section of bending, the fabric tape is characterized by extensibility.

In the fabric tape of the invention, the width W1 of the fabric tape is preferably in the range of 1 to 30 cm (more preferably 2 to 10 cm). In the case where the width W1 is less than 1 cm, it is possible that satisfactory extensibility cannot be obtained. On the contrary, in the case where the width W1 is more than 30 cm, it is possible that the handling of the fabric tape will become unsatisfactory.

Preferably, the propagation direction of the bending portion (wave propagation direction) is consistent with the longitudinal direction or transverse direction of the fabric tape. In FIG. 1, the propagation direction of the bending portion is consistent with the transverse direction (W direction) of the fabric tape.

In addition, the width W2 of the bending portion is preferably in the range of 0.3 to 20 cm (more preferably 1 to 8 cm). In the case where the width W2 is less than 0.3 cm, it is possible that satisfactory extensibility cannot be obtained. On the contrary, in the case where the width W2 is more than 20 cm, it is possible that the handling of the fabric tape will become unsatisfactory.

The thickness of the bending section is preferably in the range of 1 to 10 mm.

To obtain excellent extensibility, the bending section is characterized by a bending coefficient defined by the following formula and comprising 1.1 or more (more preferably, a value in the range of 1.3 to 10):

(Bending coefficient) = [B + (A × 2 × (number of bendings))] / B

A: bending section thickness (cm)

B: bending width (cm)

In addition, the bending portion is preferably characterized by a degree of stretching of 10% or more (more preferably 25% or more, particularly preferably 50 to 300%). If the degree of stretching is less than 10%, it is possible that wearing comfort will become unsatisfactory.

No particular restrictions are imposed on the fabric structure of the fabric ribbon, but preferably the fabric ribbon is formed from woven fabric and / or knitted fabric. In particular, knitted fabric tape is preferred. Particularly preferred is knitted fabric Danby.

As for the production method of fabric tape, the fabric tape can be obtained, for example, using the method described in publication JP-A-2010-285721, in paragraph 0029 and the like. More specifically, for example, knitting is preferably carried out in which when using a needle on the surface side of double-sided rachel knitting machines, at predefined intervals in the weft direction, knit Danby stitches (sections of the main loop formation of the surface side) having a predetermined width, while simultaneously similar knitting when using the needle on the reverse side at predetermined intervals in the direction of the weft sections of the Danby quilting (section in the main loop formation of the reverse side) having a predetermined width, and, in addition, the phase of the sections of the main loop formation of the reverse side is arranged with parallel shifts in the weft direction with respect to the phase of the sections of the main loop formation of the surface side so that each section of the main loop formation of the reverse side is located in the center between the sections of the main loop formation of the surface side. In this case, it is preferable that the lateral edge of the main looping portion of the surface side and the lateral edge of the adjacent portion of the main looping of the reverse side are connected to each other in the direction of the warp using a two-strand chain stitch or a two-thread Danby stitch (knitting and joining section) when knitting both sides of the knitted fabric with respect to the edge portions with the same knitted fabric structure as the fabric structure of the knitted fabric with the joint.

More preferably, the tape is colored. If the tape has the ability to stain, an operation is possible in which colorless matter is obtained and stained in accordance with the field of use or in accordance with the need, and then sent as intended. In addition, in the case of obtaining a fibrous product using a fabric tape, this fabric tape can be dyed to obtain a color corresponding to the color of the fabric of another part of the fiber product.

In addition, other various types of processing can be used to add a flame retardant, a water-absorbing agent, a water-repellent agent, a heat storage agent, an anti-UV agent, an antistatic agent, an antifungal agent, a deodorant, an anti-grinding agent, an anti-mosquito agent, a phosphorescent agent, a reflective agent, and like that.

The fabric tape has the aforementioned structure and is therefore characterized not only by fire resistance, but also by extensibility.

The fibrous product according to the first embodiment is a fibrous product that is obtained using the aforementioned fabric tape in some part of it, and which is any fibrous product selected from the group consisting of protective clothing, fireproof clothing, fireproof clothing, rescue clothing , fire-resistant workwear, police uniforms, official clothing of the self-defense forces and military uniforms.

The fabric tape is preferably located partly on the part intended for the joint, such as the shoulder, elbow or knee and the like. In this case, the fiber constituting a part other than the fabric tape is preferably a meta-type fully aromatic polyamide fiber and / or a para-type fully aromatic polyamide fiber.

The fibrous product uses the fabric tape described above and therefore exhibits an excellent distinguishing feature, so that it is characterized not only by fire resistance, but also by extensibility.

In the fabric ribbon of the invention, the second embodiment has a mesh portion. The mesh portion is preferably characterized by the proportion of holes determined using the following formula of 20% or more (more preferably, a value in the range of 30 to 60%). In the case where the hole ratio is less than 20%, it is possible that satisfactory air permeability cannot be achieved, so that comfort becomes unsatisfactory.

Hole fraction = (C / D) × 100 (%)

where C is the total surface area of the portions of the cavities surrounded by the area of the fiber, which is obtained when projecting matter, and D is the total value for the surface area of the sites of the cavities and the surface area of the fiber site.

It is preferred that the mesh portion has a width in the range of 1 to 5 cm and continues in the longitudinal direction of the fabric tape. In the case where the width is less than 1 cm, it is possible that the air permeability will be unsatisfactory. On the contrary, in the case when the width is more than 5 cm, there will be a danger of the passage of the flame through the area in the form of a grid.

In addition, it is preferable that the fabric tape has sections of non-mesh (sections of low breathability) on both sides of the section in the form of a mesh, continuing in the longitudinal direction, since then the structure of the fabric tape is stabilized. In this case, the proportion of holes for the non-mesh portion is preferably 10% or less. In the case where the proportion of holes for the non-mesh portion is more than 10%, it is possible that in the fibrous product to which the fabric tape is attached using a sewing thread, this thread, for example, will come out of its intended position, which will make the fabric tape unstable .

It is preferred that the fabric tape have a dual structure so that it has a material (valve portion) covering the mesh portion, since then the flame can hardly pass through the mesh portion. In this case, the material covering the portion of the mesh is preferably material in which the aforementioned proportion of openings for which is less than 20% (non-mesh). Matter is woven fabric, knitted fabric and the like, and there are no particular restrictions on it, but preferably it is a warp-knit fabric, and the net-shaped portion and the non-mesh portion of the fabric tape are more preferably obtained as a single unit.

In order to obtain excellent fire resistance, the aforementioned fire-resistant material is used as the main body of matter for the fabric tape (material having a mesh portion) and the material covering the mesh portion, or the material may be subjected to further processing to impart fire resistance.

It is preferred that the fabric tape be formed by woven fabric and / or knitted fabric. The fabric ribbon may be a fabric ribbon formed solely by woven fabric or knitted fabric, and may be a fabric ribbon obtained by bonding woven fabric and knitted fabric to each other by stitching using sewing thread. Preferably, the woven fabric is fabric with a filament weave, fabric with a twill weave, fabric with a satin weave and the like, and no particular restrictions are imposed on it. Knitted fabric is circular knitted fabric (weft-knitted fabric), warp knitted fabric and the like, and no particular restrictions are imposed on it, but more preferably it is warped fabric, since then the structure of the fabric tape is stabilized. The width of the fabric tape is preferably in the range of 1 to 30 cm (more preferably 2 to 10 cm).

As for the method of producing fabric tape, in accordance with what is described, for example, in publication JP-A-2002-249959, fabric tape can be obtained using double-loop knitting rachel machines.

More preferably, the tape is colored. If the tape has the ability to stain, it is possible to carry out an operation in which colorless matter is obtained and stained in accordance with the field of use or in accordance with the need, and then sent as directed. In addition, in the case of obtaining a fibrous product using a fabric tape, this fabric tape can be dyed to obtain a color corresponding to the color of the fabric of another part of the fiber product.

In addition, other various types of treatment can be used to add a flame retardant, a water-absorbing agent, a water-repellent, a heat storage agent, an anti-UV shielding agent, an antistatic agent, an antifungal agent, a deodorant, an anti-grinding agent, an anti-mosquito agent, a phosphorescent agent, a reflective agent, and like that.

The fibrous product according to the invention is a fibrous product that is obtained using the aforementioned fabric tape in part of this product, and which is any fibrous product selected from the group consisting of protective clothing, fireproof clothing, fireproof clothing, rescue clothing, fireproof work clothing, police uniforms, official clothing of the self-defense forces and military uniforms.

If the fabric tape has material covering the area of the holes, it will be preferable to arrange the material from the open air side. In addition, it is preferable that the tissue tape be used not in the entire fibrous product, but only in part of the fibrous product, such as part of the axillary region through which sweat is likely to pass, or whose body temperature is unlikely to decrease. In this case, the fiber forming the part other than the fabric tape is preferably a meta-type fully aromatic polyamide fiber and / or a para-type fully aromatic polyamide fiber.

The fibrous product according to the second embodiment is obtained using the aforementioned fabric and therefore exhibits an excellent distinguishing feature, so that it is characterized by both high breathability and fire resistance.

Examples

Below the present invention will be described in more detail with reference to the following examples and comparative examples, which should not be construed as limiting the scope of the invention.

(1) Flammability

Woven fabric was sewn at the two ends of the fabric tape, which was obtained using the same single thread as the thread used to knit fabric tape using sewing thread made from 100% fiber from a fully aromatic meta-type polyamide, so that the resulting tape had a predetermined width, and a flammability measurement was performed according to the method of JIS L1091-1999 A-4 (12 second heating method).

(2) the degree of stretching

A plurality of fabric tapes were stitched and joined together in a direction perpendicular to the longitudinal direction of the tape using sewing thread made from 100% meta-type fully aromatic polyamide fiber, so that the resulting tape had a predetermined size, and measured the degree of stretching in accordance with the method according to the document JIS L1096 8.16 B.

(3) Bending coefficient

Bending coefficient = [B + (A × 2 × (number of bendings))] / B

A: bending section thickness (cm)

B: bending width (cm)

(4) The proportion of holes

The proportion of holes was calculated based on the following formula.

The proportion of holes = (C / D) × 100 (%),

where C is the total surface area of the portions of the cavities surrounded by the area of the fiber, which is obtained when projecting matter, and D is the total value for the surface area of the sites of the cavities and the surface area of the fiber site.

Example 1

When using only a single yarn No. 40 (thread number) / twisted yarn of two additions, which is obtained from staple fibers from meta-type fully aromatic polyamide (Conex (trade name), MA) and para-type all-aromatic polyamide fibers (Twaron (trade name), RA) (in this case, both staple fibers are characterized by a fiber length of 51 mm), and which is obtained by mixing the fibers at a mass ratio MA / PA = 95/5, we knitted warp knitted fabric using double-loop rachel machines, give the knitted structure of matter, demonstrated in FIG. 2. After that, the resulting material was washed using the usual method and the fiber from a fully aromatic meta-type polyamide was dyed, and then the material was fixed using a pin while stretching it so that the width of the bending section increased by 1.3 times, and subjected to heat setting to obtain a fabric tape having a bending coefficient of 1.45. The width was 4 cm and the thickness of the bending section was 3 mm. In addition, as seen in FIG. 1, the propagation direction of the bending portion is consistent with the transverse direction of the fabric tape.

The resulting fabric tape was characterized by a degree of elongation of 121% and showed fire resistance, so that the duration of residual burning was 0.1 seconds, the duration of residual smoldering was 1.2 seconds, and the length of carbonization was 6.0 cm.

After that, a fibrous product (protective clothing) was obtained by using the fabric tape obtained above in the part of the fibrous product intended for the shoulder, and when used in another part of the woven fabric, which was obtained using the General method using a single thread No. 40 (thread number) / twisted yarn of two additions, which is obtained from staple fibers fibers from a fully aromatic meta-type polyamide (Conex (trade name)) MA and fibers from a fully aromatic para-type polyamide (Twaron (trade name)) RA (while both staple fibers are characterized by a fiber length of 51 mm), and which is obtained by mixing the fibers with a mass ratio MA / PA = 95/5. The test participant wore a fibrous product, and as a result, it was found that the fibrous product was characterized by excellent extensibility, so that the test participant felt very comfortable.

Comparative Example 1

The operation was carried out essentially the same as in example 1, except that the single thread was replaced with a single thread No. 40 (thread number) / twisted thread of two additions, which was made exclusively of fiber from polyester.

The resulting fabric tape was characterized by a bending level of 1.58 and a degree of elongation of 132%, but showed complete combustion when measuring flammability according to the procedure from JIS L1091-1999 A-4 (12-second heating method) and, thus, was characterized by the absence of fire resistance. In addition, a fibrous product (protective clothing) was obtained by using the obtained fabric tape in a portion of the fibrous product intended for the shoulder, and when used in another part of the woven fabric, which was obtained using the General method using a single thread No. 40 (thread number) / twisted yarn of two additions, which is obtained from staple fibers fibers from a fully aromatic meta-type polyamide (Conex (trade name)) MA and fibers from a fully aromatic para-type polyamide (Twaron (trade name novation)) RA (both staple fibers are characterized by a fiber length of 51 mm), which is obtained by mixing the fibers with a mass ratio MA / PA = 95/5.

The test participant wore a fibrous product, and as a result, it was found that the fibrous product was characterized by excellent extensibility.

Example 2

The operation was carried out essentially the same as in example 1, except for stretching the fabric tape so that the width of the bending section increased by 2.6 times, and heat-fixing to obtain a fabric tape having a bending coefficient of 1.03.

The resulting fabric tape was characterized by unsatisfactory extensibility, so that the degree of elongation was 23%, but as far as flammability was concerned, the fabric tape was flame retardant, so that the residual burning time was 0.2 seconds, the residual smoldering time was 1.1 seconds, and the length carbonization was 5.3 cm.

After that, a fibrous product (protective clothing) was obtained using the fabric tape obtained above in the part of the fibrous product (protective clothing) intended for the shoulder, and using another part of the woven fabric, which was obtained using the General method using a single thread No. 40 ( thread number) / twisted yarn of two additions, which is obtained from staple fibers from meta-type fully aromatic polyamide (Conex (trade name)) MA and para-type all-aromatic polyamide fibers (Twaron (trade name)) RA (with both staple fibers have a fiber length of 51 mm), and which is produced by mixing fibers in a weight ratio of MA / RA 95/5.

The test participant wore a fibrous product, and as a result, it was found that the elongation in the part for the shoulder was unsatisfactory compared with what was the case for the fibrous product obtained in example 1.

Example 3

When using a single yarn No. 40 (thread number) / twisted yarn of two additions, which is obtained from staple fibers, fibers from meta-type fully aromatic polyamide (Conex (trade name), MA) and para-type all-aromatic polyamide fibers (Twaron ( trade name), RA) (both staple fibers are characterized by a fiber length of 51 mm), and which is obtained by mixing the fibers with a mass ratio MA / PA = 95/5, we knitted warp knitted fabric using double-loop rachel machines, with Niemi resulting knitting fabric tape, demonstrated in FIG. 3. In this case, the grid section (hole ratio: 35%), the non-grid section (hole ratio: 7%) and the valve section (hole ratio: 7%) were connected together.

After that, the resulting tape was washed using the usual method and subjected to dyeing in order to dye the fibers from a fully aromatic meta-type polyamide, followed by heat setting.

The fabric tape obtained was fire resistant, so that according to the measurement of flammability according to the method from JIS L1091-1999 A-4 (12 second heating method), the residual burning time was 0.7 seconds, the residual smoldering time was 0.9 seconds, and the length carbonization was 4.8 cm. In addition, a fibrous product (protective clothing) was obtained using the obtained fabric tape in the part of the fibrous product intended for the axillary region, and using another hour the woven fabric obtained using the general method using a single yarn No. 40 (yarn number) / twisted yarn of two additions, which is obtained from staple fibers of a fiber from a fully aromatic meta-type polyamide (Conex (trade name), MA) and fiber from a fully aromatic para-type polyamide (Twaron (trade name), PA) (both staple fibers are characterized by a fiber length of 51 mm), and which is obtained by mixing the fibers at a mass ratio MA / PA = 95/5.

The test participant wore a fibrous product, and as a result, it was found that the breathability in the armpit area was excellent, so that the test participant felt very comfortable.

Reference Example 2

The operation was carried out essentially the same as in example 3, except that they used a single thread No. 40 (thread number) / twisted thread of two additions, which was made exclusively of fiber from polyester.

The resulting fabric tape showed complete combustion during the measurement of flammability according to the method from JIS L1091-1999 A-4 (12 second heating method) and, thus, was characterized by the absence of fire resistance. In addition, a fibrous product (protective clothing) was obtained using the obtained fabric tape in the part of the fibrous product intended for the axillary region, and using in another part of the woven fabric, which was obtained using the General method using a single thread No. 40 (thread number) / twisted yarn of two additions, which is obtained from staple fibers from meta-type fully aromatic polyamide (Conex (trade name), MA) and para-type all-aromatic polyamide fibers (Twaron ( Orgov name), PA) (with both staple fibers have a fiber length of 51 mm), and which is produced by mixing fibers in a weight ratio of MA / RA 95/5.

The test participant wore a fibrous product, and as a result, it was found that the breathability in the armpit area was excellent.

Example 4

The operation was carried out essentially the same as in example 3, except for a separate change in the proportion of holes as follows: mesh section (fraction of holes: 10%), non-mesh section (fraction of holes: 5%) and valve section (proportion of holes : 5%).

The fabric tape obtained was fire resistant, so that according to the flammability measurement according to the method from JIS L1091-1999 A-4 (12 second heating method), the residual burning time was 0.9 seconds, the residual smoldering time was 1.1 seconds, and the carbonization length was 5.3 cm. In addition, a fibrous product (protective clothing) was obtained using the obtained fabric tape in the part of the fibrous product intended for the axillary region, and using another part the woven fabric obtained using the general method using a single yarn No. 40 (yarn number) / twisted yarn of two additions, which is obtained from staple fibers of a fiber from a fully aromatic meta-type polyamide (Conex (trade name), MA) and fiber from a fully aromatic para-type polyamide (Twaron (trade name), PA) (both staple fibers are characterized by a fiber length of 51 mm), and which is obtained by mixing the fibers at a mass ratio MA / PA = 95/5.

The test participant wore a fibrous product, and as a result, it was found that the air permeability in the axillary region was less than the air permeability of the fibrous product obtained in example 3.

Industrial applicability

The present invention describes a flame retardant fabric tape and a fibrous product, and they are of extremely great commercial importance.

List of Reference Items

1: Grid

2: Valve section

3: Non-grid plot

Claims (24)

1. A fabric tape comprising organic fiber and characterized in that the fabric tape exhibits a residual burning time of 2.0 seconds or less according to the measurement of flammability by the method from JIS L1091-1999 A-4 (12 second heating method). 2. A fabric tape according to claim 1, which demonstrates a residual smoldering duration of 3.0 seconds or less and a carbonization length of 10 cm or less according to the measurement of flammability by the method from JIS L1091-1999 A-4. 3. The fabric tape according to claim 1 or 2, where the width of the fabric tape is in the range from 1 to 30 cm. 4. Cloth tape according to any one of paragraphs. 1-3, formed by knitted fabric. 5. Cloth tape according to any one of paragraphs. 1-4, including fiber from a fully aromatic polyamide. 6. Cloth tape according to any one of paragraphs. 1-5, including fiber from a fully aromatic meta-type polyamide in an amount of 30% wt. or more based on the weight of the fabric tape. 7. Cloth tape according to any one of paragraphs. 1-6, including fiber from a fully aromatic meta-type polyamide in an amount of from 50 to 99% wt. or more based on the weight of the fabric tape. 8. Cloth tape according to any one of paragraphs. 1-7, including fiber from a fully aromatic para-type polyamide in an amount of from 2 to 20% wt. or more based on the weight of the fabric tape. 9. Cloth tape according to any one of paragraphs. 1-8, processed to give color. 10. Cloth tape according to any one of paragraphs. 1-9 having a bending portion. 11. The fabric tape according to claim 10, in which the direction of propagation of the bending section is consistent with the longitudinal direction or transverse direction of the fabric tape. 12. The fabric tape according to claim 10 or 11, in which the width of the bending section is in the range from 0.3 to 20 cm 13. Cloth tape according to any one of paragraphs. 10-12, in which the bending section is characterized by a degree of stretching of 10% or more. 14. Cloth tape according to any one of paragraphs. 10-13, in which the bending section is characterized by a bending coefficient defined by the following formula and comprising 1.1 or more: Bending coefficient = [B + (A × 2 × (number of bendings))] / B, where A: thickness of the bending section (cm); B: width of the bending section (cm). 15. Cloth tape according to any one of paragraphs. 1-9, having a plot in the form of a grid. 16. The fabric tape according to claim 15, in which the area in the form of a grid is characterized by a fraction of holes of 20% or more. 17. The fabric tape according to claim 15 or 16, in which the area in the form of a mesh is characterized by a width of 1 to 5 cm and continues in the longitudinal direction of the fabric tape. 18. Cloth tape according to any one of paragraphs. 15-17, which has non-mesh portions characterized by a proportion of holes of 10% or less, on both sides of the portion in the form of a grid extending in the longitudinal direction. 19. Cloth tape according to any one of paragraphs. 15-18, including matter covering at least a portion of the grid. 20. The fabric tape according to claim 19, wherein said material is capable of opening and closing the material under it. 21. A fibrous product comprising a fabric tape according to any one of paragraphs. 1-20, which is any fiber product selected from the group consisting of protective clothing, fireproof clothing, fireproof clothing, rescue clothing, work clothing, police uniforms, official clothing of the self-defense forces and military uniforms.

Images