Abstract: A flame retardant polyester fiber for artificial hair, which is obtained by melt spinning a composition as a mixture of 100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate and a copolymer polyester comprising polyalkylene terephthalate as a main component with 5 to 30 parts by weight of (B) a brominated epoxy flame retardant. The present invention also relates to the polyester fiber for artificial hair which has at least one modified cross-section, is a mixture with a fiber having a modified cross-section, and has a mixing ratio of the fiber having a round cross-section to the fiber having a modified cross-section is 8:2 to 1:9, and to the flame retardant polyester fiber for artificial hair which further comprises a hydrophilic fiber treating agent attached thereto, and thus has excellent smooth feeling, combing properties, and flame retardance.

Abstract: A flame retardant polyester fiber for artificial hair, which is obtained by melt spinning a composition as a mixture of 100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate and a copolymer polyester comprising polyalkylene terephthalate as a main component with 5 to 30 parts by weight of (B) a brominated epoxy flame retardant. The present invention also relates to the polyester fiber for artificial hair which has at least one modified cross-section, is a mixture with a fiber having a modified cross-section, and has a mixing ratio of the fiber having a round cross-section to the fiber having a modified cross-section is 8:2 to 1:9, and to the flame retardant polyester fiber for artificial hair which further comprises a hydrophilic fiber treating agent attached thereto, and thus has excellent smooth feeling, combing properties, and flame retardance.

Abstract: It is an object of the present invention to provide a polyester based artificial hair which has excellent setting properties, feeling and transparency and further has excellent flame-retardancy and controlled gloss of fiber surface while maintaining fiber properties possessed by a conventional polyester fiber such as heat resistance, strength and elongation and the like.

Abstract: Disclosed is a fiber for use as hair which has touch/shine like a hair, excellent curl-retaining property and flame retardancy. Also disclosed is a head-dressing product produced using the fiber. The fiber comprises (A) 90 to 10 parts by weight of polyester fiber and (B) 10 to 90 parts by weight of a reproduced collagen fiber containing an aluminum compound. Preferably, the aluminium compound is an aluminium salt and is contained in an amount of 8 to 20% by weight in terms of aluminium oxide. The polyester fiber may contain a flame retarder.

Abstract: It is an object of the present invention to provide a polyester fiber for artificial hair which has an excellent spinning processability, maintains fiber properties possessed by conventional polyester fiber, and has excellent flame retardance, heat resistance, transparency and the like. A flame retardant polyester fiber for artificial hair which achieves the above object can be obtained by melt spinning a composition in which 5 to 30 parts by weight of (B) a brominated epoxy based flame retardant and 0.05 to 1 parts by weight of (C) a reaction accelerator is mixed with 100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate or a copolymer polyester comprising polyalkylene terephthalate as a main component.

Abstract: A total number of windings in an armature is an even number. The windings are divided into a first winding group and a second winding group. The windings of the first winding group are arranged one after another at generally equal angular intervals without overlapping with each other. The windings of the second winding group are arranged one after another at generally equal angular intervals without overlapping with each other and are wound separately from the windings of the first winding group.

Abstract: Artificial polyester hair, which retains fiber physical properties of general polyester fibers such as heat resistance and a degree of strength and elongation, are excellent in the setting property, transparency and touch feeling, and has excellent flame retardancy, is provided. The flame retardant artificial polyester hair, which retains fiber properties such as heat resistance and a degree of strength and elongation and is excellent in suitability for setting, transparency and touch feeling, is characterized by being obtained by melt-spinning a composition obtained by melt-kneading a polyester together with a bromine-containing flame retardant, the bromine-containing flame retardant having a melting point of 160 to 320° C. and a 5% loss on heat temperature of 220 to 450° C. or the bromine-containing flame retardant being a mixture of a bromine-containing flame retardant (b1) having a 5% loss on heat temperature of 220 to 310° C.

Abstract: It is an object of the present invention to provide a polyester based artificial hair which has excellent setting properties, feeling and transparency and further has excellent flame-retardancy and controlled gloss of fiber surface while maintaining fiber properties possessed by a conventional polyester fiber such as heat resistance, strength and elongation and the like.

Abstract: The object of the invention is to provide polyester-based fiber which maintains physical properties of usual polyester fiber, such as heat resistance, strength and elongation and is excellent in setting ability with controlled gloss of the fiber, artificial hair using the same, a method of producing polyester-based fiber, and a method of producing artificial hair by using the same. To achieve the object, a composition obtained by melt-kneading polyalkylene terephthalate or a copolymerized polyester (A) based on polyalkylene terephthalate, polyarylate (B) and a phosphite compound (C) is melt-spun to form fiber. In the case of melt-kneading, the ester exchange reaction of components (A) and (B) is prevented due to the inhibitory effect of the component (C) on the ester exchange reaction, the heat resistance and physical properties of the fiber are not deteriorated, and a matte effect is brought about by formation of protrusions on the surface of the fiber.

Abstract: A polyester fiber having improved dripping resistance during burning can be provided by a polyester fiber made of a polyester composition containing a layer compound treated with at least one kind selected from a polyether compound and a silane compound, and a thermoplastic polyester resin. The present invention also relates to a polyester fiber made of a polyester composition comprising a layer compound treated with a water-soluble or water-miscible phosphorus flame retardant, and a thermoplastic polyester resin.

Abstract: It is an object of the present invention to provide a polyester based artificial hair which has an excellent spinning processability, maintains fiber properties such as heat resistance, strength and elongation and the like, and has excellent curl holding properties and iron setting properties. A flame retardant polyester based artificial hair which has an excellent spinning processability, maintains fiber properties such as heat resistance, strength and elongation and the like, and has excellent curl holding properties and iron setting properties can be obtained by melt spinning a composition obtained by melt kneading a polyester, a phosphorus containing flame retardant and/or a bromine containing flame retardant and at least one compound selected from the group consisting of a carbodiimide compound, a bisoxazoline compound and an isocyanate compound.

Abstract: It is an object of the present invention to provide a polyester fiber for artificial hair which has an excellent spinning processability, maintains fiber properties possessed by conventional polyester fiber, and has excellent flame retardance, heat resistance, transparency and the like. A flame retardant polyester fiber for artificial hair which achieves the above object can be obtained by melt spinning a composition in which 5 to 30 parts by weight of (B) a brominated epoxy based flame retardant and 0.05 to 1 parts by weight of (C) a reaction accelerator is mixed with 100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate or a copolymer polyester comprising polyalkylene terephthalate as a main component.

Abstract: Fibers for hair use in which the drawback of curling property is imparted without imparting features of human hair, such as flame resistance, heat resistance, touch feeling, and which are reduced in quality unevenness. The fibers are a bundle of fibers for hair use which comprises a mixture of 10 to 90 parts by weight of human hair (A) and 90 to 10 parts by weight of polyester fibers (B) having an LOI-value of at least 25, a thermal shrinkage ratio at 180° C. of at most 5%, and a single fiber fineness of 20 to 100 dtex, wherein the component (B) is polyester fibers formed from a composition obtained by melt-kneading a polyalkylene-ethylene terephthalate and a copolymer comprising polyalkylene-ethylene terephthalate as the main component (C) together with a phosphorus compound flame retardant (D) and/or a bromine compound flame retardant (E).

Abstract: A flame resistant polyester fiber, while maintaining physical properties, such as heat resistance, tensile strength and elongation, etc. of usual polyester fibers, having excellent flame resistance and excellent setting property, and furthermore having controlled gloss of fiber is provided. A composition obtained by melt kneading of a polyester (A) comprising polyalkylene terephthalates, and one or more kinds of copolymerized polyesters having polyalkylene terephthalate as a principal component; a polymer alloy (B) consisting of polyalkylene terephthalates and polyarylates; phosphorus based flame resistant agents (C); and phosphite based compounds (D), and organic fine particles (E) and/or inorganic fine particles (F) are mixed thereto to obtain a composition. The obtained composition is melt spun to obtain a flame resistant polyester fiber in which the above-mentioned problems are solved, and to obtain artificial hair using the fiber.

Abstract: A uniform coupling comprises a torque transmitting unit; first and second shafts that are connected through the torque transmitting unit; a boot covering the torque transmitting unit and having a first end connected to the first shaft and a second end connected to the second shaft, the second end being formed into a cylindrical wall that is tightly disposed on a cylindrical portion of the second shaft and has an axially leading end; a boot cover disposed on the cylindrical portion of the second shaft to cover the cylindrical wall leaving an annular space therebetween, the boot cover having an inside end surface that contacts the axially leading end of the cylindrical wall; and an air bleeding passage that communicates the inside of the boot with the outside of the same. The air bleeding passage includes a groove formed in an inner surface of the cylindrical wall and a passage that is defined between the axially leading end of the cylindrical wall and the inside end surface of the boot cover.

Abstract: A polyester fiber having outstanding flame resistance, curl-setting property, melt-drip-proof property, transparency, devitrification resistance, and controlled gloss of fiber, while maintaining physical properties of usual polyester fibers, such as heat-resistance and tensile elongation and strength is provided. A flame retardant polyester fiber for artificial hair that can solve the problem may be obtained by melt-spinning a composition obtained by melt-kneading 2 to 20 parts by weight of organic cyclic phosphorus compounds and/or phosphoric ester amido compounds (B) into 100 parts by weight of a polyester (A) comprising one or more kinds of polyalkylene terephthalates and copolymerized polyesters having a polyalkylene terephthalate as a principal component, and a composition obtained by blending organic fine particles (C) and/or inorganic fine particles (D) into the above-mentioned composition.

Abstract: There are provided a polyester fiber which maintains fiber properties such as heat resistance and strength and elongation possessed by a common polyester fiber, has excellent flame retardance, setting properties, transparence, devitrification resistance, stickiness reduction, and combing properties required for artificial hair, and has luster controlled according to need, and artificial hair using the same. Specifically, the present invention relates to a flame retardant polyester fiber for artificial hair, which is obtained by melt spinning a composition as a mixture of 100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate and a copolymer polyester comprising polyalkylene terephthalate as a main component with 5 to 30 parts by weight of (B) a brominated epoxy flame retardant.

Abstract: There are provided a polyester fiber which maintains fiber properties such as heat resistance and strength and elongation possessed by a common polyester fiber, has excellent flame retardance, setting properties, transparence, devitrification resistance, stickiness reduction, and combing properties required for artificial hair, and has luster controlled according to need, and artificial hair using the same. Specifically, the present invention relates to a flame retardant polyester fiber for artificial hair, which is obtained by melt spinning a composition as a mixture of 100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate and a copolymer polyester comprising polyalkylene terephthalate as a main component with 5 to 30 parts by weight of (B) a brominated epoxy flame retardant.

Abstract: A power train includes a driving shaft and a follower shaft connecting to the driving shaft by way of a first joint. The follower shaft is adapted to slide relative to the driving shaft in an axial direction. The follower shaft includes: a holder shaped substantially into a cylinder, and a tubular shaft section coupled with the holder in the axial direction. The first joint includes a member defining an outer diameter. The holder holds therein the member of the first joint. The tubular shaft section coupled with the holder in the axial direction causes an inner curl to a second joint coupling the holder and the tubular shaft section. The inner curl defines an inner diameter greater than the outer diameter of the member of the first joint.

Abstract: A flame resistant polyester fiber, while maintaining physical properties, such as heat resistance, tensile strength and elongation, etc. of usual polyester fibers, having excellent flame resistance and excellent setting property, and furthermore having controlled gloss of fiber is provided. A composition obtained by melt kneading of a polyester (A) comprising polyalkylene terephthalates, and one or more kinds of copolymerized polyesters having polyalkylene terephthalate as a principal component; a polymer alloy (B) consisting of polyalkylene terephthalates and polyarylates; phosphorus based flame resistant agents (C); and phosphite based compounds (D), and organic fine particles (E) and/or inorganic fine particles (F) are mixed thereto to obtain a composition. The obtained composition is melt spun to obtain a flame resistant polyester fiber in which the above-mentioned problems are solved, and to obtain artificial hair using the fiber.