Abstract: Highly elastic heat-bonding conjugated fibers capable of providing a fiber structure having excellent recovery from compression and compression durability and a high level of air permeability comprise a thermoplastic elastomer component and a crystalline nonelastic polyester component having a higher melting point than that of the elastomer as constituent components thereof and can be provided by arranging the elastomer component in a crescent shape in the circular fiber cross section of the bonding conjugated fibers and specifying the geometrical dimensions (a shape occupied by each of the two components constituting the heat-bonding conjugated fibers) therein.

Abstract: Highly elastic heat-bonding conjugated fibers capable of providing a fiber structure having excellent recovery form compression and compression durability and a high level of air permeability comprise a thermoplastic elastomer component and a crystalline nonelastic polyester component having a higher melting point than that of the elastomer as constituent components thereof and can be provided by arranging the elastomer component in a crescent shape in the circular fiber cross section of the bonding conjugated fibers and specifying the geometrical dimensions (a shape occupied by each of the two components constituting the heat-bonding conjugated fibers) therein.

Abstract: An acaricide fiber material including a number of individual fibers and an acaricide component fixed to the individual fibers and consisting essentially of a solution comprising at least one member selected from the group consisting of N-(fluorodichloromethylthio)-phthalimide, N-methyl-N,-phenyl-(N'-fluorodichloro-methylthio)-sulfamide, 4-chlorophenyl-3'-iodoproparagyl formal, and 2,4,4'-trichloro-2'-hydroxydiphenyl-ether, dissolved in a carrier consisting of at least one type of phthalic acid ester, prepared by suspending the acaricide solution in an aqueous medium, applying the acaricide aqueous suspension to a fiber material comprising the individual fibers, and drying the aqueous suspension layers on the individual fibers to fix the acaricide component to the individual fibers.

Abstract: A fragrant non-hollow core-in-sheath type composite staple fiber having a length of from 3 mm to 150 mm and useful for gradual fragrance-emitting textile materials comprises (1) a non-hollow core portion comprising (i) 0.1 to 5% of an essential oil and (ii) the balance consisting of an olefin polymer composition; and (2) a sheath portion covering the core portion and comprising a polyester resin, the olefin polymer composition (ii) comprising: (A) 50 to 98% by weight of an olefin polymer which is a polymerization product of at least one member selected from ethylene and .alpha.

Abstract: Disclosed is a flameproofing synthetic fiber comprising a halogenated cycloalkane and at least one member selected from phosphorus compounds represented by the following general formulae (I) through (IV): ##STR1## According to the present invention, the flameproofing synthetic fiber which is excellent in flameproofing property and feeling and significantly improved in spinning property and corrosion protective property can be provided. Furthermore, the foaming during operation and the passing processability through a stuffing crimper are also extremely improved.