Chisso Corporation

Chisso Polypro Fiber Company Limited

Yoshimi Tsujiyama

Satoshi Ogata

Masahiko Taniguchi

Junji Iwata

Hisanobu Minamizawa

Hidemi Ito

Shingo Horiuchi

Toshikatsu Fujiwara

Masahito Katsuya

Takeshi Noma

Taiju Terakawa

Kouichi Hatada

Kazuyuki Nagae

Hiroaki Nishioi

Problem to be Solved: To provide an elastic nonwoven fabric with a good elasticity, adequate strength under elongation, good antiblocking property and favorable feeling, suitable for fiber products, at low cost, as well as fiber products using the same. Solution: An elastic nonwoven fabric comprising long elastomeric fiber and nonelastomeric fiber in a weight ratio within a range from 50/50 to 95/5, which has an elongation recovery rate of the elastic nonwoven fabric after 50% elongation equal to or higher than 70%, and a resistance to peel two sheets of the nonwoven fabric apart equal to or lower than the strength of the fabric under 50% elongation; as well as fiber products using the same.

Elastic nonwoven fabric and fiber products manufactured therefrom

PROBLEM TO BE SOLVED: To provide an elastic long-fiber non-woven fabric that exhibits excellent elasticity, appropriate stress upon elongation, an excellent anti-blocking property, and an excellent soft feel, and which is suitable for applications to fabric products; and to provide fabric products manufactured from such an elastic long-fiber non-woven fabric. SOLUTION: An elastic long-fiber non-woven fabric comprising composite long fibers comprising at least one of a non-elastomer resin and an elastomer resin, wherein the composite long fibers have a helical structure and an irregular-surface structure; the non-elastomer resin/elastomer resin volume ratio (%) of the composite long fibers falls within a range of 30/70 to 5/95; and the fineness of the composite long fibers is 5 dtex or less; and fabric products manufactured from such an elastic long-fiber non-woven fabric.

Elastic long-fiber non-woven fabric, and fabric product using the same

PROBLEM TO BE SOLVED: To provide an elastic nonwoven fabric with a good elasticity, adequate strength under elongation, good antiblocking property and favorable feeling, suitable for fiber products, at low cost, as well as fiber products using the same. SOLUTION: An elastic nonwoven fabric comprising long elastomeric fiber and nonelastomeric fiber in a weight ratio within a range from 50/50 to 95/5, which has an elongation recovery rate of the elastic nonwoven fabric after 50% elongation equal to or higher than 70%, and a resistance to peel two sheets of the nonwoven fabric apart equal to or lower than the strength of the fabric under 50% elongation; as well as fiber products using the same.

A non-woven fabric composed of thermoplastic fiber comprising at least two resin components A and B and having a cross section where the component A forms a branching fiber in which a plurality of strands extend radially from the center to the outside and the component B forms a fine fiber which connects to and protrudes from the branching fiber; split branch fibers of the conjugated fiber; and split fibers of the fine fibers, and an absorbent article using the non-woven fabric. The non-woven fabric of the present invention has an excellent hand feeling and sufficient bulkiness, and it is suitable for absorbent articles such as disposable diapers, sanitary napkins, and pads for incontinence or the like.

Non-woven fabric and an absorbent article using thereof

A composite laminated sheet comprises a thermoplastic crystalline film and a non-woven fabric having a thermoplastic conjugated fiber comprising the low melting point component and the high melting point component, in which the difference in the melting point between the low melting point component and the high melting point component is not less than 10&deg; C.; the difference in the melting point between the thermoplastic crystalline film and the low melting point component of the conjugated fiber is not more than 30&deg; C.; and the temperature of the position corresponding to 10% of the area from the side of the melting starting point of the endothermic peak of an entire conjugated fiber evaluated by DSC is between the melting starting point and the melting completion point of the endothermic peak of the film evaluated by DSC. According to the present invention, a composite sheet is provided in which a non-woven fabric and a film are adhered without adhesive agents, the appearance is excellent, and the adhesive strength between the non-woven fabric and the film is high. Consequently, the composite sheet of the present invention can be used for a water-proof sheets, for example, paper diapers or sanitary napkins or the like.

Composite sheet comprising a non-woven fabric and a film

A filament nonwoven fabric comprising thermoplastic fibers with a fineness of 0.1 to 10 d/f, having a basis weight of 5 to 35 g/m.sup.2, and having thermally press bonded portions, in which the conditions (A), (B), and (C) below are satisfied:

Filament nonwoven fabric and absorbent article using the same

Modified polyolefin fibers capable of easily producing a non-woven fabric having a high strength and a superior feeling, and provided with a broad range of processing temperature and further a low temperature adhesiveness and suitable to heating roll processing, and a non-woven fabric using the same are provided,

Modified polyolefin fibers and a non-woven fabric using the same

Polypropylene fiber, a method for manufacture thereof, and a non-woven

A cylindrical filter formed of stacked microfine, conjugate fibers consisting of a higher melting point component and a lower melting point component, the fiber diameter of the conjugate fibers being varied into a smaller one in the thickness direction of the filter and along with the passing direction of a fluid to be filtered, and the contact points of the conjugate fibers being melt-adhered by the lower melting point component is provided. This cylindrical filter is produced by a process of subjecting a higher melting point component and a lower melting point component each consisting of a fiber-forming thermoplastic polymer to conjugate melt-blow spinning so that the fiber diameter is varied during the spinning into a smaller one in the thickness direction of the filter and along with the passing direction of the fluid, winding up and stacking the fibers on a core to form a cylindrical shape on the core, heat-treating the resulting web at a temperature higher than the melting point of the lower melting point component and lower than the melting point of the higher melting point component, before and/or at the time of or after the winding-up, and drawing out the core.

Cylindrical filter and process for producing the same

A water-repellent fiber having adhered to the fiber surface of a thermoplastic resin, which is a fiber a textile oil in the amount of 0.1-0.8% by weight of the fiber comprising ingredients of the following (A), (B) and (C) wherein the textile oil comprises: (A) 5-15% by weight of at least one alkylsulfonate, (B) 5-45% by weight of at least one compound selected from polyol esters and aliphatic acid alkanol amides, and (C) 40-90% by weight of at least one compound selected from dibasic acid esters and polyethylene glycol esters.

Water-repellent fiber and nonwovens made of the fiber

Cylindrical filter formed of stacked fibers having a high and low

A hotmelt-adhesive fiber sheet having a high adhesion onto paper, clothes ,timbers, metals, etc. is obtained by subjecting (1) a termpolymer of ethylene-acrylic acid ester-maleic anhydride, from which microfine fibers have not so far been obtained due to inferior spinnability since the terpolymer has a high frictional force against metals and is liable to generate static electricity, and (2) a thermoplastic resin having a melting point higher by 30.degree. C. or more than the melting point of the terpolymer, to conjugate spinning according to a melt blown process, followed by making up the conjugate fibers into a web without using any spinning oiling agent and heat-treating the web.

Hotmelt-adhesive fiber sheet and process for producing the same

A web or a fibers consisting of microfibers having a fineness of 0.01 denier or less is provided, which web or fibers is obtained by spinning conjugate fibers consisting of microfibers-generating fibers of island-in-sea type, according to melt blown process, the sea component being a thermoplastic resin (polyvinyl alcohol) capable of being removed with a solvent (water) and the island component being a thermoplastic resin (polypropylene) insoluble in the solvent used for the sea component, followed by collecting the spun conjugate fibers in the form of a web or a tow; the resulting composite fibers being thinner than those obtained according to conventional conjugate spinning and the microfibers obtained by removing the sea component also being thinner than fibers obtained from conventional conjugate fibers of island-in-sea type.

Microfibers-generating fibers and a woven or non-woven fabric of

A precision cartridge filter having an average filter diameter of 10 .mu.m or less is produced by preparing a web composed of conjugate microfine fibers by a conjugate melt-blowing process, wherein the conjugate microfine fibers have a lower melting point component, a higher melting point component, and a melting point difference between the lower melting point component and higher melting point component of 20.degree. C. or more; followed by heating and molding the web at a temperature greater than or equal to the melting point of said lower melting point component, but less than the melting point of said higher melting point component.

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Moriyama, Japan

Yoshimi Tsujiyama