Kao Corporation

Hiroyuki Akai

Shusuke Kakiuchi

Kazuo Mori

Akihito Shizuno

Takao Koyama

Hiroyuki Yanagida

Taeko Hayase

Toshiyuki Suga

Kouji Machii

Kazuhiro Inaba

A bulky, water-disintegratable cleaning article is formed of water-disintegratable paper impregnated with 100% to 500% by weight of an aqueous agent. The water-disintegratable paper is a substantially water dispersible fibrous sheet containing a water soluble or swellable binder. The water-disintegratable paper has a great number of protrusions and depressions formed by embossing and has a basis weight of 30 to 150 g/m. The bulky, water-disintegratable cleaning article has a thickness Tof 1.0 to 3.0 mm under a load of 0.3 kPa and a thickness Tof at least 0.9 mm under a load of 1.0 kPa.

Bulky water-disintegratable cleaning article and process for producing water-disintegratable paper

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

A process for producing bulky paper comprising the steps of transferring a fiber web ( ) having a water content of 50 to 85% by weight to a patterning zone having a perforated patterning net ( ) revolving along a suction unit; patterning the fiber web ( ) in conformity to the perforated patterning net ( ) by sucking the fiber web ( ) which is held on the perforated patterning net ( ) while applying 5 kcal/kg or more of heat to the fiber web ( ) in a heat application zone simultaneously with or before or after the sucking of the fiber web ( ); and then drying the fiber web ( ) in a drying zone to obtain patterned bulky paper ( ).

Process for producing bulky paper

Growing community of inventors

Tochigi, Japan

Hiroyuki Akai