Kao Corporation

Akihiko Gunji

Tetsuya Masuki

Hideyuki Kobayashi

Mikio Suzuki

Koji Kanazawa

Manabu Kaneda

Takanobu Miyamoto

Akira Noda

Manabu Matsui

Hidenori Shirai

Taiki Uchiyama

Masao Kurahashi

In a process of producing a stretch sheet, a strip-shaped laminate sheetA having an elastically stretchable elastic layerand substantially inelastic, inelastic fiber layersandpartially joined to each other at bondsor a strip-shaped fibrous sheet containing an elastic component and a substantially inelastic component and having embossed regions formed by embossing in parts is stretched in directions starting from the bondsor the embossed regions to obtain a stretch sheet. The stretch sheet has raised ridges and recessed grooves extending in the direction perpendicular to the stretch direction, and the bondsor the embossed regions are present in the ridges.

Stretch sheet and process of producing the same

A hot melt adhesive is applied to a side of a fibrous sheet(e.g., nonwoven fabric) with an applicatorto form an adhesive layer. Ink drops are ejected from an inkjet headonto either (1) the adhesive layeron that side of the fibrous sheet or (2) the opposite side of the fibrous sheet within the area corresponding to the adhesive layer

Process of producing breathable sheet and process of producing absorbent article

An absorbent articlecomprising a topsheet, a backsheet, and an absorbent memberis disclosed. The backsheetcomprises a laminated sheet composed of a breathable filmprinted with a multicolor patternand nonwoven materials 3and 3superposed on the printed side of the film. The printed area of the film has an L* value of 10 to 93 and a C* value of 20 to 120 as measured with a color difference meter. The nonwoven materialsandhave a light transmittance of 40 to 83%.

Absorbent article

A compression recovery sheet which comprises a fiber aggregate containing 10 to 90% by weight of an elastomeric component and has a basis weight of 15 to 100 g/m , a no-load thickness of 1 to 10 mm, and a compressive recovery of 60% or more and an absorbent article containing the same are disclosed.

Compression recovery sheet, production process thereof and absorbent article containing the same

An absorbent article includes a liquid permeable topsheet, a liquid-impermeable and moisture-permeable leakproof sheet, and a liquid retentive absorbent member interposed between the topsheet and the leakproof sheet. A foamed material is disposed in the absorbent member. The foamed material has a density of 5 to 35 kg/m , a no-load thickness of 1 to 10 mm, and a compressive recovery of 60% or more in terms of (b/a&times;100), wherein a is a thickness (mm) measured after 24-hour standing with no load applied, and b is a thickness (mm) measured after 24-hour compression under a load of 180 gf/cm followed by 30-minute standing with no load applied. The foamed material is fixed at the prescribed position with an adhesive, which has been applied to have applied parts and unapplied parts.

A process for making a film including forming a composite material of a thermoplastic film into an annular original film having at least two thick portions according to the inflation process, making the annular original film into a flat shape such that the thick portions are located at substantially opposite ends thereof, and stretching the flat annular original film by clamping the thick portions.

Growing community of inventors

Tochigi, Japan

Akihiko Gunji