Kao Corporation

Akihito Shizuno

Hiroshi Otsuka

Minoru Wada

Keima Takabayashi

Kouji Machii

Kazuo Mori

Hiroyuki Yanagida

Chiharu Omori

Kenji Ishikawa

Hiromichi Suzuki

Hiroyuki Akai

Yuji Watahiki

Takehiko Uematsu

A cleaning articlehaving a flat tubular pocketand attachable to a holder by inserting the holder into the pocket. The pocketis formed by joining pocket-forming sheetsfacing each other. At least one fiber layer formed of a fiber bundle, accordingly two fiber layersA andB are provided on each of the upper and lower sides of the pocketof the pocket-forming sheets. Each of the first fiber layersA closest to the pocket-forming sheetsis joined to the respective pocket-forming sheetby a continuous central linear sealA continuously extending in the longitudinal direction in a laterally middle portion and a discontinuous side sealB discontinuously extending in the longitudinal direction at a position laterally spaced away in at least one of the lateral directions from the central continuous linear sealA.

Cleaning article, method of fluffing cleaning article, and method of producing cleaning article

A wet cleaning sheethas a liquid retentive sheetmade of a fibrous material or a cellular material and impregnated with a predetermined amount of a detergent, etc., a liquid impermeable sheetdisposed on one side of the liquid retentive sheet, and a liquid gradual-releasing sheet made of a fibrous material and less air permeable than the liquid retentive sheetdisposed on the other side of the liquid retentive sheet. The liquid impermeable sheethas a bag shape with openingson one side thereof. The liquid retentive sheet is held in the bag and releases the detergent, etc. through the openings. The liquid gradual-releasing sheet has an air permeability of 0.05 to 6 m/kPa&#xb7;s thereby to control the gradual release of the detergent, etc.

Wet sheet for cleaning

An adhesive roll cleanercomprises a core tube and a plurality of adhesive tapeshaving an adhesive portion A on one side thereof helically wound around the core tube in a layered configuration with the adhesive portion A out. Each of the adhesive tapesis wound with a gap G of prescribed width between a side edge Sand an adjacent side edge Sand the width of the adhesive tapesincreases toward outside.

Adhesive roll cleaner

An adhesive roll cleaner having a single-sided adhesive sheet wound around a core tube into a roll with the adhesive side facing out, wherein the adhesive sheet has a tear strength of 500 mN or higher and is wound in such a manner that the adhesive roll cleaner maintains an outer diameter within a range of 22 to 40 mm from start to end of use, and the roll has a width of 180 to 300 mm.

A cleaning sheet having a cleaning surface comprising a cleaning area for cleaning a piled surface and a low-friction area which adjoins the cleaning area. The cleaning area has a coefficient of static friction of 0.1 to 4.0 against wool press felt (JIS L3201 R33W). The low-friction area comprises a film or nonwoven fabric and has a coefficient of static friction of 0.01 to 1.0 against wool press felt (JIS L3201 R33W).

Cleaning Sheet

A bulky sheet comprising a fiber aggregate formed by water needling of a fiber web is disclosed. The bulky sheet has a number of projections and depressions comprising the fiber aggregate. The projections and the depressions is formed both by rearrangement of the constituting fibers of the fiber aggregate by water needling of the fiber aggregate and by the multiple bending manner of the fiber aggregate along the thickness direction thereof. The projections and the depressions retains the shape thereof by themselves.

Bulky sheet and process for producing the same

A cleaning sheet comprises a network sheet and a nonwoven fiber aggregate formed by the entanglement of fibers of a fiber web and disposed on at least one side of the network sheet. The fibers of the nonwoven fiber aggregate are further entangled with the network sheet, forming a unitary body. The cleaning sheet has the breaking strength of 500 g/30 mm or more, and the elongation at a load of 500 g/30 mm is 10% or less. The fiber aggregate has the entanglement coefficient of from 10 to 500 m. The entanglement coefficient is expressed by the initial gradient of the stress-strain curve measured with respect to the direction perpendicular to the fiber orientation in the fiber aggregate.

Growing community of inventors

Tochigi, Japan

Akihito Shizuno