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CHISSO POLYPRO FIBER CO., LTD.

TOKYO, JP

CHISSO POLYPRO FIBER CO., LTD. Patent applications
Patent application numberTitlePublished
20100086745COMOPOSITE SPUNBONDED NONWOVEN - A composite spunbond nonwoven and a laminate using the same are provided. The composite spunbond nonwoven is formed of a composite fiber including a low melting point component and a high melting point component. The composite fiber is partially thermal compression bonded to each other, and thermal compression bonded portions have fine folded structures formed by repeating convex portions and concave portions in a CD (cross direction in nonwoven manufacturing). An average of distances between adjacent convex portions of the folded structures is in a range of 100 μm-400 μm. The composite spunbond nonwoven exhibits an elongation property by unfolding the fine folded structures. When the composite spunbond nonwoven is elongated by 5%, a CD strength is less than or equal to 0.1 N/5 cm width, and a MD/CD strength ratio is greater than or equal to 200. MD is longitudinal direction in nonwoven manufacturing.04-08-2010
20090238849STRETCHABLE LAMINATED SHEET - A stretchable laminated sheet with hydrophilic properties, which particularly has an excellent feeling and stability in wearing and is capable of efficiently enhancing the effect and efficacy brought about by a liquid component on a skin or other object, when the stretchable laminated sheet is impregnated with the liquid component and wet and then used on the skin or other object. A stretchable laminated sheet, which is obtained by partially thermocompression-bonding and laminating a hydrophilic short fiber layer extensible in at least one direction and an microfiber layer having a elastomer long fiber of a fiber diameter of 15 μm or less at 50% or more by weight, wherein discontinuous and regular concave and convex parts caused by the partial thermocompression bonding are formed on a surface of the hydrophilic short fiber layer that is exposed on one surface of the stretchable laminated sheet, the total area of the concave parts is in a range of 3 to 40% of the area of the surface of the hydrophilic short fiber layer, and at least the elastomer long fiber of the microfiber layer is softened and consequently joined to a fiber constituting the hydrophilic short fiber layer in a sheet thickness direction of a section where the concave parts exist, whereby the hydrophilic short fiber layer and the microfiber layer are integrated with each other.09-24-2009