Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
  • D06C27/00—Compound processes or apparatus, for finishing or dressing textile fabrics, not otherwise provided for
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
  • D03D15/513—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads heat-resistant or fireproof
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
  • D10B2201/20—Cellulose-derived artificial fibres
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
  • Y10T442/3179—Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified
  • Y10T442/322—Warp differs from weft
  • Y10T442/3228—Materials differ
  • Y10T442/326—Including synthetic polymeric strand material
  • Y10T442/3285—Including polyester strand material

Definitions

• the present invention relates to a suede-like flame-retardant union fabric having excellent texture.
• a flame-retardant polyester-based fiber may be used to improve the flame retardance (Patent documents 2, 3).
• a cloth using the flame-retardant polyester-based fiber tends to develop a larger bore due to the melting of the polyester-based fiber at the time of combustion.
• the flame-retardant polyester-based fiber alone is insufficient to ensure flame retardance of a textile for upholstering a chair.
• flame-retardant acrylic fibers may be used for improving the flame retardance (Patent documents 4-6). Even in such a case, in a fabric using for the warps a yarn of the polyester-based fiber that is the most advantageous and used widely from the viewpoint of cost, design and productivity, the texture was degraded due to the shrinkage in the fabric weft direction during the process. Furthermore, the fabric easily bores during the combustion due to the melt of the polyester-based fiber and shrinkage and/or thermal decomposition of the flame-retardant acrylic fiber. As a result, the flame retardance is insufficient, or it is required to use polyester-based fiber for the conjugated fiber for the blended yarn. Namely, the flame-retardant acrylic fiber cannot be used for general purpose in the textile for upholstering a chair.
• a crosslinked high flame-retardant acrylic fiber may be used.
• the acrylic fiber is prepared by adding a thermal crosslinking polymer and antimony oxide to a flame-retardant acrylic fiber (Patent document 7).
• the crosslinked high flame-retardant acrylic fiber is effective in a case where the cloth is loosened.
• the crosslinked high flame-retardant acrylic fiber alone cannot ensure sufficient flame retardance.
• a suede-like flame-retardant union fabric exhibits excellent design and texture, it is comfortable, and it has a high flame retardance when the suede-like flame-retardant union fabric is formed of warps and wefts where the warps are raised on at least one face of the fabric.
• the warps include a polyester-based yarn and the wefts include a spun yarn (A) that contains at least 70 weight parts of a cellulosic fiber and a spun yarn (B) that contains a flame retardant-containing halogen-containing fiber containing 3 to 50 weight parts of a flame retardant with respect to 100 weight parts of halogen-containing fibers, and the spun yarn (A) and the spun yarn (B) used as the wefts are alternately interweaved, and the inventors have completed the present invention on the basis of this finding.
• the suede-like flame-retardant union fabric of the present invention can be provided at a low cost. Shrinkage in the fabric weft direction can be suppressed.
• the fabric has high flame retardance even if it contains also a polyester-based fiber.
• the suede-like flame-retardant union fabric according to the present invention is formed of warps and wefts, where the warps are raised on at least one face of the fabric.
• the warps in the union fabric include a polyester-based yarn and the wefts include a spun yarn (A) that contains at least 70 wt% of a cellulosic fiber and a spun yarn (B) that contains a flame retardant-containing halogen-containing fiber containing 3 to 50 weight parts of a flame retardant with respect to 100 weight parts of halogen-containing fibers, and the spun yarn (A) and the spun yarn (B) used as the wefts are alternately interweaved.
• the suede-like flame-retardant union fabric according to the present invention is characterized further in that the cellulosic fiber is contained to be 15 to 45 wt% in the total weight of the union fabric.
• the suede-like flame-retardant union fabric according to the present invention is characterized further in that the flame retardant-containing halogen-containing fiber is contained to be 15 to 45 wt% in the total weight of the union fabric.
• the suede-like flame-retardant union fabric according to the present invention is characterized further in that at least one of the halogen-containing fibers is a fiber including a copolymer obtained by polymerizing a composition including 30 to 70 wt% of acrylonitrile, 70 to 30 wt% of a halogen-containing vinyl-based monomer, and 0 to 10 wt% of a vinyl-based monomer copolymerizable with the acrylonitrile and the halogen-containing vinyl-based monomer so as to be 100 wt% in total.
• the suede-like flame-retardant union fabric according to the present invention is characterized further in that at least one of the halogen-containing fibers is a fiber including a copolymer obtained by polymerizing a composition including 30 to 70 wt% of acrylonitrile, 70 to 30 wt% of a vinylidene chloride, and 0 to 10 wt% of a vinyl-based monomer copolymerizable with the acrylonitrile and the vinylidene chloride so as to be 100 wt% in total.
• the suede-like flame-retardant union fabric according to the present invention is characterized further in that the flame retardant-containing halogen-containing fiber is a flame retardant-containing halogen-containing fiber containing 8 to 50 weight parts of the flame retardant with respect to 100 weight parts of the halogen-containing fibers.
• the suede-like flame-retardant union fabric according to the present invention is characterized further in that the flame retardant includes at least one selected from the group consisting of a Sb compound, a Sn compound, a Zn compound, a Mg compound and a P compound.
• the suede-like flame-retardant union fabric according to the present invention is characterized further in that the flame retardant includes at least one selected from the group consisting of the Sb compound, the Sn compound and the Zn compound.
• the suede-like flame-retardant union fabric according to the present invention is characterized further in that the flame retardant includes at least the Sb compound.
• the present invention relates to a method for producing a suede-like flame-retardant union fabric.
• the method includes the steps of: interweaving alternately the spun yarn (A) and the spun yarn (B) during preparation of a flame-retardant union fabric from the warps and the wefts; relaxing the union fabric by 5 to 20% in a fabric warp direction length in pressurized hot water at a temperature in a range of 105°C to 140°C; and drying the union fabric while stretching in the weft direction so as to cancel wrinkles that appear in parallel to the fabric warp direction and raising the warps that have risen on the surface due to the relaxation at the time of the treatment in the pressurized hot water.
• the suede-like flame-retardant union fabric according to the present invention exhibits excellent design and favorable texture. It is comfortable and has high flame retardance.
• the suede-like flame-retardant union fabric of the present invention is used as an upholstery fabric for a product such as a chair covering of an inflammable cushioning such as urethane foam, since the suede-like flame-retardant union fabric of the present invention is self-extinguishing and it forms a carbonized film, even when the product is exposed to flame, ignition of the internal filling can be prevented.
• the present invention relates to a suede-like flame-retardant union fabric formed of warps and wefts, where the warps are raised on at least one face of the fabric.
• the warps include polyester-based yarn
• the wefts include a spun yarn (A) that contains at least 70 weight parts of a cellulosic fiber and a spun yarn (B) that contains a flame retardant-containing halogen-containing fiber containing 3 to 50 weight parts of a flame retardant with respect to 100 weight parts of halogen-containing fibers.
• the spun yarn (A) and the spun yarn (B) used as the wefts are alternately interweaved.
• the term "suede-like flame-retardant union fabric” denotes a flame-retardant union fabric exhibiting a texture similar to that of suede leather.
• any flame-retardant union fabric that can be regarded as a substitute for suede leather is included in the "suede-like flame-retardant union fabric”.
• flame-retardant indicates that the flame-retardant performance is superior to that of a corresponding suede-like union fabric manufactured by using a polyester fiber.
• the flame retardance can be assessed by a method in conformity with BS 5852:1990 Source 1, which refers to a test for flame retardance of seating for household use in England.
• the Source 1 is described in No. BS 5852:1990 "Methods of test for assessment of the ignitability of upholstered seating by smouldering and flaming ignition sources" of the British Standards.
• fiber denotes a single fiber
• the examples include a long fiber (filament) and a short fiber (staple).
• “yarn” denotes a slender and linear fiber bundle formed by putting the fibers together.
• the examples include a spun yarn formed by paralleling, joining and twisting the short fibers, and a paralleled yarn formed simply by arranging the long fibers in parallel.
• “fabric” denotes a fiber composite textile weaved with a loom by use of yarns for fabrics, such as spun yarn.
• the "union fabric” denotes a fabric including warps and wefts intersecting orthogonally each other.
• raising refers to a structure achieved for example, by preparing a cloth of a fiber bundle having ultrafine fibers of not more than 1 denier or a fiber such as a sea-island fiber that is divided by an external force or a process with a solvent so as to develop ultrafine fibers, and by subjecting the cloth to a mechanically raising step using sandpaper, a brush or the like.
• the suede-like flame-retardant union fabric according to the present invention is a fabric that has developed a suede-like appearance as a result of the raising.
• the method for raising the fabric in the present invention is not limited in particular, but any commonly-applied methods using a teazel raising machine, a wire raising machine, an emery raising machine and the like, can be applied.
• the wefts in the union fabric are exposed on the surface and the back face of the textile.
• the weave structures include plain weave, satin weave, twill weave and the like, though there is no particular limitation thereto. It is also possible to use a Jaquard loom, a Dobby loom or the like.
• the polyester-based yarn is formed of the following fibers.
• a fiber including as the main component a long chain synthetic polymer including at least 85 wt% of an ester unit of terephthalic acid and an ester unit of dihydric alcohol at the mass ratio in the fiber weight can be used preferably.
• examples of such fibers include a polyethylene terephthalate fiber, a polytrimethylene terephthalate fiber, a polybutylene terephthalate fiber and the like. It is also possible to use a polyester-based fiber provided with flame retardance through a post process or the like using a flame retardant, or a polyester-based fiber to which a flame retardant has been added.
• additives such as a delustrant, a thermal stabilizer, a defoamer, an orthochromatic agent, an antioxidant, an ultraviolet absorbent, an infrared absorbent, a crystal nucleating agent, a fluorescent brightener and the like to the polyester-based fiber.
• a delustrant such as a thermal stabilizer, a defoamer, an orthochromatic agent, an antioxidant, an ultraviolet absorbent, an infrared absorbent, a crystal nucleating agent, a fluorescent brightener and the like
• additives can be used alone or in a combination of two or more.
• the polyester-based yarn of the present invention it is possible to use preferably a yarn containing the polyester-based fiber in a state of a filament or a staple. It is also possible to use any yarn that is formed of a polyester-based fiber and used generally for fabrics, such as a regular yarn, processed yarn, and further, a blended yarn and a processed yarn each of which contains the polyester-based fiber and a natural or synthetic fiber such as cotton, rayon and the like. These yarns can be used alone or in a combination of two or more. From the viewpoint of the yarn strength for the warps of the fabric, it is preferable that the content of the polyester-based fiber is at least 30 wt%. From the viewpoint of availability, it is more preferable that the content is 100 wt%.
• An example of the yarn particularly suitable for the polyester-based yarn used in the present invention is a yarn prepared by twisting ultrafine polyester-based fibers of not more than 1.2 deniers.
• Another example is called a sea-island fiber. This is a fiber formed to have on its cross section a sea component and an island component. In the steps after the fiber-forming step, either the sea component or the island component is removed or separated by washing or dissolving so as to obtain an ultrafine fiber.
• Any yarn can be used in the present invention as long as a suede-like appearance can be obtained by fabricating a cloth and then raising the surface of the cloth.
• the flame retardant-containing halogen-containing fiber is a fiber containing 3 to 50 weight parts of a flame retardant with respect to 100 weight parts of halogen-containing fibers.
• an example of the halogen-containing fibers is a fiber formed of a polymer of monomers containing halogens.
• Another example may be a fiber formed of a copolymer of a monomer containing a halogen and a monomer containing no halogen.
• Further examples include a fiber formed of a polymer blend of a polymer containing a halogen and a polymer containing no halogen, and a halogen-containing polymer to which a halogen has been added by a post process.
• Another example is a fiber obtained by adding a halogen by a post process to a fiber formed of a polymer containing no halogen.
• halogen-containing fiber examples include a homopolymer and a copolymer of halogen-containing monomers such as vinyl chloride, a vinylidene chloride and the like.
• a copolymer of the halogen-containing monomer and any copolymerable monomer such as acrylonitrile, styrene, vinyl acetate, acrylic ester and the like.
• a further example is a fiber formed of a graft polymer where a halogen-containing monomer is grafted to a PVA-based polymer, though these examples do not limit the present invention.
• a most preferred halogen-containing fiber is a modacrylic fiber, which is a fiber formed of a copolymer of a halogen-containing monomer and acrylonitrile.
• various additives such as a delustrant, a thermal stabilizer, a defoamer, an orthochromatic agent, a flame retardant, an antioxidant, an ultraviolet absorbent, an infrared absorbent, a fluorescent brightener and the like can be added as required.
• additives can be used alone or in a combination of two or more.
• the flame retardant is at least one selected from the group consisting of a Sb compound, a Sn compound, a Zn compound, a Mg compound, a Mo compound, a Ti compound, a P compound, an Al compound, a Zr compound, and a Si compound.
• Sb compound examples include antimony trioxide, antimony pentoxide, antimonic acid, antimony oxychloride and the like.
• Sn compound examples include stannic oxide, metastannic acid, stannous oxyhalide, stannic oxyhalide, stannous hydroxide, stannic tetrachloride and the like.
• Zn compound examples include zinc oxide and the like.
• Mg compound examples include magnesium oxide, magnesium hydroxide and the like.
• Mo compound include molybdenum oxide and the like.
• Ti compound examples include titanium oxide, barium titanate and the like.
• P compound include ammonium polyphosphate, dibutylaminophosphate and the like.
• Al compound examples include aluminum hydroxide, aluminum sulfate, aluminum silicate and the like.
• Zr compound examples include zirconium oxide and the like.
• Si compound examples include silicate, glass and the like.
• Natural or synthetic compounds based on metallic minerals containing these flame retardants can be used also favorably, and the examples include kaolin, zeolite, montmorillonite, talc, pearlite, bentonite, vermiculite, diatomaceous earth, graphite and the like. Alternatively, it can be a conjugated compound such as magnesium stannate, zinc stannate, zirconium stannate and the like.
• the flame retardant is at least one selected from the group consisting of a Sb compound, a Sn compound, a Zn compound, a Mg compound and a P compound. Further preferably, it is at least one selected from the group consisting of a Sb compound, a Sn compound and a Zn compound. Most preferably, it is a Sb compound. These compounds can be used alone or as a mixture of two or more.
• the cellulosic fiber examples include cotton, linen, rayon, polynosic, cupra, acetate, and triacetate. It is also possible to use a cellulosic fiber provided with flame retardance by a post process or the like using a flame retardant, or a silicic acid-containing cellulosic fiber obtained by adding silicic acid and/or aluminum silicate as a flame retardant to a cellulosic fiber. These can be used alone or in a combination of two or more.
• Examples of the flame retardants used for providing flame retardance by the above-mentioned post process or the like include a phosphate ester-based compound, a halogen-containing phosphate ester-based compound, a condensed phosphate ester-based compound, a polyphosphate-based compound, a polyphosphate ester-based compound and the like.
• phosphate ester-based compound examples include triphenylphosphate, tricresyl phosphate, trixylenyl phosphate, trimethyl phosphate, triethyl phosphate, cresyl phenylphosphate, xylenyl diphenylphosphate, resorcinol bis(diphenylphosphate), 2-ethylhexyl diphenylphosphate, dimethylmethyl phosphate, triallyl phosphate (REOFOS), aromatic phosphate ester, phosphonocarboxylic acid amid derivative, tetrakis•hydroxymethyl phosphonium derivative, N-methylol dimethylphosphono propionamide and the like.
• halogen-containing phosphate ester-based compound examples include tris(chloroethyl) phosphate, trisdichloropropyl phosphate, tris- ⁇ -chloropropyl phosphate, chroloalkyl phosphate, tris(tribromoneopentyl) phosphate, diethyl-N,N-bis(2-hydroxyethyl) aminomethyl phosphate, tris(2,6-dimethylphenyl) phosphate and the like.
• condensed phosphate ester-based compound examples include aromatic condensed phosphate ester, halogen-containing condensed phosphate ester and the like.
• Examples of the polyphosphate-based compound include ammonium polyphosphate amide, polychlorophosphonate and the like.
• Examples of the polyphosphate ester-based compound include carbamate polyphosphate and the like.
• Examples of other flame retardants include red phosphorus, an amine compound, boric acid, a halogenated compound, bromide, a urea-formaldehyde compound, a phosphate-urea compound like phosphorus-containing aminoplast, ammonium sulfate, guanidine-based condensate and the like. These flame retardants used for providing flame retardance by a post process or the like can be used alone or in a combination of two or more.
• the fabric of the present invention uses a spun yarn that contains a flame retardant-containing halogen-containing fiber containing 3 to 50 weight parts of a flame retardant with respect to 100 weight parts of halogen-containing fibers and a spun yarn that contains at least 70 weight parts of a cellulosic fiber.
• the fabric provides an effect of preventing boring during combustion even in a union fabric using a polyester-based yarn for the warps. Thereby, the flame retardance of the fabric can be improved.
• a spun yarn containing at least 70% of the cellulosic fiber has a low rate of shrinkage caused by heating.
• the cellulosic fiber-containing spun yarn contains at least 70% of the cellulosic fiber. More preferably, the content of the cellulosic fiber is at least 75%, further preferably at least 80%, and even further preferably 100%.
• the flame retardant-containing halogen-containing fiber so as to be 15 to 45 wt% in the total weight of the union fabric.
• the content of the flame retardant-containing halogen-containing fiber in the total weight of the union fabric is less than 15 wt%, the flame retardance is insufficient, and thus it is difficult to maintain the flame retardance of the fabric.
• the content exceeds 45 wt% the heat resistance of the fabric deteriorates, causing deterioration of the processability and degradation of the flame retardance, and thus it is not preferable.
• the cellulosic fiber so as to be 15 to 45 wt% in the total weight of the union fabric.
• the content of the cellulosic fiber in the total weight of the union fabric is less than 15 wt%, the effect of preventing boring at the time of combustion is inferior.
• the content exceeds 45 wt% the fabric does not bore but the combustion tends to continue. That is, in any case, the flame retardance of the fabric is insufficient and thus not favorable.
• the content of the cellulosic fiber in the total weight of the union fabric is 20 to 40 wt%, and most preferably, 25 to 40 wt%.
• the flame retardant-containing halogen-containing fiber contains 3 to 50 weight parts of the flame retardant with respect to 100 weight parts of the halogen-containing fibers. It is more preferable that the lower limit of the content of the flame retardant is 8 weight parts, and further preferably, 9 weight parts. It is more preferable that the upper limit of the content of the flame retardant is 30 weight parts, and further preferably, 25 weight parts. When the content is less than 3 weight parts, the flame retardance is insufficient and thus it becomes difficult to maintain the flame retardance of the fabric. When the content exceeds 50 weight parts, the physical properties such as strength deteriorate to cause degradation in weaving processability, and thus it is not preferable.
• the halogen-containing fiber is a fiber including a copolymer obtained by polymerizing a composition including 30 to 70 wt% of acrylonitrile, 70 to 30 wt% of a halogen-containing vinyl-based monomer, and 0 to 10 wt% of a vinyl-based monomer that is copolymerizable with them so as to be 100 wt% in total. It is preferable that the halogen-containing vinyl-based monomer in the composition is 35 to 60 wt%, and more preferably, 40 to 55 wt%.
• the halogen-containing vinyl-based monomer is a halogen-containing vinylidene-based compound, and from the viewpoint of providing a flame retardance to a fabric, vinylidene chloride is preferred in particular.
• the suede-like flame-retardant union fabric according to the present invention is a flame-retardant union fabric formed of warps and wefts, and it can be produced by: preparing a union fabric by using the warps of a polyester-based yarn and the wefts that includes a spun yarn (A) that contains at least 70 wt% of a cellulosic fiber and a spun yarn (B) that contains a flame retardant-containing halogen-containing fiber containing 3 to 50 weight parts of a flame retardant with respect to 100 weight parts of halogen-containing fibers and that are weaved into the warps; relaxing the fabric by 5 to 20% in the fabric warp direction length in pressurized hot water at a temperature in a range of 105°C to 140°C; drying the fabric while stretching in the weft direction in order to cancel the wrinkles that appear in parallel to the fabric warp direction; and, raising the warps that have risen on the surface of the fabric due to the relaxation at the time of treatment in
• the polyester-based yarn used for the warps is loosened and frayed, and thus the raising can be performed easily.
• a temperature lower than 105°C sufficient loosening or fray of the polyester-based yarn does not occur due to the low temperature.
• a temperature higher than 140°C the wefts become influential to cause deterioration of the texture, which is not preferable.
• the relaxation is less than 5%, the polyester-based yarn is not loosened sufficiently and the raising becomes difficult.
• productivity of the textile deteriorates, and it is not preferable.
• the temperature for the relaxation treatment is 110 to 135°C, and particularly preferably 120 to 130°C.
• the relaxation rate is 5 to 15%, and particularly preferably, 5 to 10%.
• the flame-retardant union fabric of the present invention has excellent flame retardance, and the reason is considered as follows.
• the halogen and the flame retardant contained in the fabric are gasified so as to generate an incombustible gas and at the same time, carbonization of the cellulosic component contained in the fabric is accelerated. Thereby, a carbonized strong skeleton is formed so as to serve to prevent formation of a large bore even in a fabric containing a polyester-based fiber.
• the suede-like flame-retardant union fabric of the present invention has a shrinkage rate of less than 20% in the fabric weft direction, which also contributes to exhibiting a favorable texture.
• the shrinkage rate in the fabric weft direction can be assessed by using the shrinkage rates taken before and after the treatment in the pressurized hot water and the drying operation.
• a shrinkage rate in the weft direction for each fabric was calculated through the equation below (Equation 1).
• C indicates that the shrinkage rate in the fabric weft direction is at least 20%
• B indicates that the shrinkage rate is not less than 10% and less than 20%
• A indicates that the shrinkage rate is less than 10%. If the shrinkage is great, the weight of the textile per unit area is increased due to the shrinkage, and textile becomes stiff to touch.
• Apolyurethane foam 7.5 cm in thickness and 22 kg/m 3 in density (Model 360S manufactured by TOYO TIRE & RUBBER CO., LTD.) was covered with a fabric mentioned below so as to be subjected to a test for flame retardance of seating for household use in England, in conformity with BS 5852:1990 Source 1.
• the Source1 is described in standard No. BS 5852:1990 "Methods of test for assessment of the ignitability of upholstered seating by smouldering and flaming ignition sources" of the British Standards.
• the size of the bores formed due to the combustion in the test was measured twice in the fabric warp direction. "A” indicates that the size of the bore did not exceed 2 cm in any of the measurements. "B” indicates that the size of the bore exceeded 2 cm, but the urethane foam did not catch fire. “C” indicates that the size of the bore exceeded 2 cm, and the urethane foam caught and spread fire.
• a composite false-twisted processed yarn of 105 deniers /156 filaments was produced by false-twisting a core yarn of a highly-shrinkable polyester multi-filament of 30 deniers / 12 filaments, which was manufactured by Jiangsu Xinmin Textile Science & Technology, and a sheath yarn of a polyester multi-filament of 75 deniers / 144 filaments of the same manufacturer. This false-twisted yarn was used as the warps.
• the weft 1 and the weft 2 described in Table 2 were used for the wefts.
• HOPE registered trade name
• 2 deniers / 51 mm manufactured by OmiKenshi Co., Ltd. was used for the rayon used as the wefts.
• Tetron registered trade name of 2 deniers / 51 mm manufactured by TORAY Industries, Inc. was used, so that respective spun yarns were obtained.
• the wefts 1 and 2 were arranged alternately in parallel to each other, orthogonally to the warps.
• the warps were weaved so that the pick number of the warps in the transverse direction of the fabric was 94/cm, and the wefts were weaved so that the pick number of the wefts in the longitudinal direction of the fabric was 36/cm, thereby a 2/1 twill fabric having a fabric width of 150 cm was produced.
• the fabric was treated in 130°C pressurized hot water for 30 minutes by using a jet dyeing machine, and relaxed by 10% in the fabric warp direction length. Then, the fabric was dried while being stretched in the weft direction by heating for 5 minutes at 130°C with a tenter dryer, so as to cancel the wrinkles that appeared in parallel to the fabric warp direction. Due to the relaxation at the time of the above-mentioned treatment in the pressurized hot water, the warps had risen on the surface of the fabric. The warps were raised with No. 400 emery paper by use of an emery processor.
• the fabric was passed twice through five emery rolls at a paper surface rotational speed of 500 m/min., a cloth speed of 10 m/min., and at a contact pressure of 1.0 kg, thereby raising the surface side and thus a suede-like union fabric was produced.
• the results are shown in Table 2.
• the fabric in Comparative Example 1 had a great shrinkage rate in the fabric weft direction, and thus it had an inferior touch.
• the fabrics in Comparative Examples 2-4 had insufficient flame retardance.
• the reasons therefor are considered to be as follows. Namely in Comparative Example 1, the content of the cellulosic fiber in the spun yarn was insufficient. In Comparative Example 2, the amount of the cellulosic fiber in the fabric was insufficient. In Comparative Examples 3 and 4, the flame retardance was insufficient due to the insufficient amounts of halogens and flame retardant.

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• 2012
  • 2012-06-22 CN CN201280030439.8A patent/CN103608505A/zh active Pending
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  • 2012-06-22 US US14/127,388 patent/US20140134908A1/en not_active Abandoned
  • 2012-06-22 TW TW101122661A patent/TW201311955A/zh unknown
  • 2012-06-22 WO PCT/JP2012/065943 patent/WO2012176859A1/ja active Application Filing
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