Title:
段ボ-ル原紙の外装用ライナ-及びその表層製造用紙料の製造方法
Document Type and Number:
Japanese Patent JP4060917
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a sheathing liner for base paper for corrugated cardboard, having a strength which makes it suitable as the one for base paper for high- quality corrugated cardboard and low in impurity content, and also to provide a method for producing paper stock for its surface layer. SOLUTION: This paper stock for surface layer of a sheathing liner for base paper for corrugated cardboard is obtained by including pulp recovered from old paper produced by a method comprising maceration of old corrugated cardboard by a pulper 1, separation of the fibrous portion from foreign matter by screens 3 and 3a, enrichment/drying of the separated fibrous portion by a drier 4, remaceration of the treated fibrous portion by a high-speed macerator 5 to subdivide the residual foreign matter, and separation of the finely subdivided fibers from the finely subdivided foreign matter by a double nip thickener 8.
Inventors:
Kimura Takakazu
Kubota Michitaka
Kubota Michitaka
Application Number:
JP28598197A
Publication Date:
March 12, 2008
Filing Date:
October 02, 1997
Export Citation:
Assignee:
Nippon Daishowa Paperboard Co., Ltd.
International Classes:
D21B1/08; D21B1/32; D21B1/34; D21C5/02; D21F11/04; D21F11/08; D21F11/12; D21H11/00; D21H11/12
Domestic Patent References:
| JP61034294A | ||||
| JP57121697A | ||||
| JP5311589A | ||||
| JP5214688A | ||||
| JP8509273A | ||||
| JP11043880A | ||||
| JP55080588A | ||||
| JP3287887A | ||||
| JP8260372A | ||||
| JP49126902A | ||||
| JP4316688A |
Attorney, Agent or Firm:
Haruo Saito