Global Patent Index - EP 0985545 A1

EP 0985545 A1 2000-03-15 - Stencil sheet and method for perforating the same

Title (en)

Stencil sheet and method for perforating the same

Title (de)

Druckschablonenblatt und Verfahren zum perforieren deselben

Title (fr)

Feuille stencile et procédé pour sa perforation

Publication

EP 0985545 A1 (EN)

Application

EP 99117651 A

Priority

JP 25698298 A

Abstract (en)

Provided is a stencil sheet excellent in uniformity in solid print portion, improved in uneven density and setoff, and further excellent in resolution of small letters. A method for perforation of the stencil sheet is also provided. The stencil sheet comprises a laminate of a thermoplastic resin film and a porous substrate mainly composed of thermoplastic fibers, which has an average airflow resistance in a range of 0.05-0.15 Kpa.s/m as measured at a perforated part of 20-50 % in opening ratio The stencil sheet preferably has a wet tensile strength of 200 gf/cm or more. The thermoplastic resin film is preferably a polyester resin film, and the thermoplastic fibers are preferably made of a polyester resin. When perforation is made in a stencil sheet to form many fine openings corresponding to an image to be printed, good image is obtained by carrying out the perforation to give an average airflow resistance of 0.05-0.15 Kpa.s/m at the perforated part of the stencil sheet.

IPC 1-7 (main, further and additional classification)

B41N 1/24

IPC 8 full level (invention and additional information)

B32B 5/02 (2006.01); B41C 1/055 (2006.01); B41C 1/14 (2006.01); B41N 1/24 (2006.01)

CPC (invention and additional information)

B41C 1/14 (2013.01); B41N 1/243 (2013.01); B41C 1/144 (2013.01); B41C 1/148 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 0985545 A1 20000315; JP 2000085257 A 20000328

INPADOC legal status


2003-10-08 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030408

2003-01-08 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20021126

2000-11-29 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FR GB

2000-03-15 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991004

2000-03-15 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB

2000-03-15 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI