Title:
耐溶媒性液体包装用ボード、その製造方法及び使用、並びにそれから作製された飲用カップ
Document Type and Number:
Japanese Patent JP2011516747
Kind Code:
A
Abstract:
Polymer-coated, heat-sealable liquid packaging board that resists solvents (e.g. strong alcoholic drinks), method of manufacturing board, and drinking cup made of board. Resistance to solvents is achieved by lowering raw edge penetration into the board. The fiber base of the board contains at least 1.3 kg of hydrophobic size containing alkyl ketene dimer and at least 1.0 kg of wet-strength size per 1 ton of dry matter. Fiber base density is 630-800 kg/m3. The amount of heat-sealable polymer in the top layer is higher than the Bristow wheel roughness volume of the uncoated fiber base and/or at least 14 g/m2. When manufacturing the board, the alkyl ketene dimer size and a wet-strength size are added into the stock. The pH of the tail water is adjusted so as to be alkaline (about 7 or more).
Inventors:
Heiskanen, Isto
Miley Cangas, Janne
Raysenen, Timo
Miley Cangas, Janne
Raysenen, Timo
Application Number:
JP2011503466A
Publication Date:
May 26, 2011
Filing Date:
April 08, 2009
Export Citation:
Assignee:
Stra Enso Oijay
International Classes:
D21H17/17; B65D65/40; D21H19/22; D21H21/20
Domestic Patent References:
| JPH02139493A | 1990-05-29 | |||
| JP2003336189A | 2003-11-28 | |||
| JP2005017719A | 2005-01-20 | |||
| JP2007514614A | 2007-06-07 | |||
| JP2004084121A | 2004-03-18 |
Foreign References:
| WO2005003460A1 | 2005-01-13 |
Attorney, Agent or Firm:
Asamura patent office
Hideto Asamura
Hajime Asamura
Yoichiro Uemura
Katsunori Ando
Kameoka Mikio
Yuichiro Asano
Makoto Tatsumi
Hideto Asamura
Hajime Asamura
Yoichiro Uemura
Katsunori Ando
Kameoka Mikio
Yuichiro Asano
Makoto Tatsumi