Patent classifications
D04H1/435
NON-WOVEN FABRIC FOR SANITARY MATERIALS, AND SANITARY MATERIAL PRODUCT
The present invention aims to provide nonwoven fabric for sanitary materials having high water absorbability and high diffusing capacity for liquids such as water and chemicals as well as high bulkiness, flexibility, and anti-see-through property, and also provides sanitary material products produced therefrom including a water absorbing sheet for sanitary napkins. The nonwoven fabric for sanitary materials may comprise nonwoven fabric of polyester based fiber with a flattened multilobar cross section containing 6 or more convex portions along the cross-sectional circumference, the polyester based fiber with a flattened multilobar cross section having a flatness of 2.0 to 3.0, a degree of irregularity of 1.0 to 5.0, and a convex ratio of 0.6 to 0.9, and the polyester based fiber with a flattened multilobar cross section being joined by heat-weldable fiber.
NON-WOVEN FABRIC FOR SANITARY MATERIALS, AND SANITARY MATERIAL PRODUCT
The present invention aims to provide nonwoven fabric for sanitary materials having high water absorbability and high diffusing capacity for liquids such as water and chemicals as well as high bulkiness, flexibility, and anti-see-through property, and also provides sanitary material products produced therefrom including a water absorbing sheet for sanitary napkins. The nonwoven fabric for sanitary materials may comprise nonwoven fabric of polyester based fiber with a flattened multilobar cross section containing 6 or more convex portions along the cross-sectional circumference, the polyester based fiber with a flattened multilobar cross section having a flatness of 2.0 to 3.0, a degree of irregularity of 1.0 to 5.0, and a convex ratio of 0.6 to 0.9, and the polyester based fiber with a flattened multilobar cross section being joined by heat-weldable fiber.
EXTERIOR MATERIAL FOR VEHICLES HAVING HONEYCOMB STRUCTURE AND WHEEL GUARD INCLUDING SAME
An external material for vehicles may include a non-woven fabric having a honeycomb structure and a wheel guard including the same.
EXTERIOR MATERIAL FOR VEHICLES HAVING HONEYCOMB STRUCTURE AND WHEEL GUARD INCLUDING SAME
An external material for vehicles may include a non-woven fabric having a honeycomb structure and a wheel guard including the same.
STRETCHABLE NON-WOVEN FABRIC HAVING EXCELLENT REPETITION DURABILITY
Provided are a stretchable non-woven fabric including crimped fibers, satisfying the following formula: (σ.sub.65−σ.sub.55)/(σ.sub.30−σ.sub.20)≧2.5, when a stress σ (N/50 mm) at a strain ε of 20%, 30%, 55% and 65% in a stress-strain curve by a tensile test for at least one direction in a plane direction, is referred to as σ.sub.20, σ.sub.30, σ.sub.55 and σ.sub.65, respectively, and a bandage including the non-woven fabric. The non-woven fabric and the bandage lead small deterioration in stretching performance when used repeatedly, and can be excellent in repetition durability.
STRETCHABLE NON-WOVEN FABRIC HAVING EXCELLENT REPETITION DURABILITY
Provided are a stretchable non-woven fabric including crimped fibers, satisfying the following formula: (σ.sub.65−σ.sub.55)/(σ.sub.30−σ.sub.20)≧2.5, when a stress σ (N/50 mm) at a strain ε of 20%, 30%, 55% and 65% in a stress-strain curve by a tensile test for at least one direction in a plane direction, is referred to as σ.sub.20, σ.sub.30, σ.sub.55 and σ.sub.65, respectively, and a bandage including the non-woven fabric. The non-woven fabric and the bandage lead small deterioration in stretching performance when used repeatedly, and can be excellent in repetition durability.
METHOD FOR PRODUCING HEAT-RESISTANT RESIN COMPOSITE AND HEATRESISTANT RESIN COMPOSITE
A method may produce a heat-resistant resin composite excellent in heat resistance and bending properties. This heat-resistant resin composite is constituted of a matrix resin and reinforcing fibers dispersed in the matrix resin. The matrix resin is constituted of a heat-resistant thermoplastic polymer having a glass transition temperature of 100° C. or higher, and a polyester-based polymer comprising a terephthalic acid unit (A) and an isophthalic acid unit (B) at a copolymerization proportion (molar ratio) of (A)/(B)=100/0 to 40/60. The proportion of the heat-resistant thermoplastic polymer in the composite is 30 to 80 wt %.
METHOD FOR PRODUCING HEAT-RESISTANT RESIN COMPOSITE AND HEATRESISTANT RESIN COMPOSITE
A method may produce a heat-resistant resin composite excellent in heat resistance and bending properties. This heat-resistant resin composite is constituted of a matrix resin and reinforcing fibers dispersed in the matrix resin. The matrix resin is constituted of a heat-resistant thermoplastic polymer having a glass transition temperature of 100° C. or higher, and a polyester-based polymer comprising a terephthalic acid unit (A) and an isophthalic acid unit (B) at a copolymerization proportion (molar ratio) of (A)/(B)=100/0 to 40/60. The proportion of the heat-resistant thermoplastic polymer in the composite is 30 to 80 wt %.
NONWOVEN WEB WITH BIMODAL FIBER DISTRIBUTION
A nonwoven web comprising a layer of polymeric fibers, wherein, based on the total number of polymeric fibers, at least 10% the polymeric fibers in said layer are coarse fibers having a fiber diameter of 4 μm or more, and at least 10% of the polymeric fibers in said layer are fine fibers having a fiber diameter of 2 μm or less. Also described herein is a method for making the nonwoven web, comprising melt-blowing a polymer mixture comprising two immiscible or partially miscible polymers.
NONWOVEN WEB WITH BIMODAL FIBER DISTRIBUTION
A nonwoven web comprising a layer of polymeric fibers, wherein, based on the total number of polymeric fibers, at least 10% the polymeric fibers in said layer are coarse fibers having a fiber diameter of 4 μm or more, and at least 10% of the polymeric fibers in said layer are fine fibers having a fiber diameter of 2 μm or less. Also described herein is a method for making the nonwoven web, comprising melt-blowing a polymer mixture comprising two immiscible or partially miscible polymers.