Aqueous gel ink-filled ball point pen

Details Aqueous gel ink-filled ball point pen Aqueous gel ink-filled ball point pen

1997-12-12

1999-11-30

Walczak, David J.

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

401216, B43K 701

Patent

active

059930985

ABSTRACT:
Provided is an aqueous gel ink-filled ball point pen having less blobbing and capable of drawing stable lines having vivid color and no uneven written intensity. The aqueous gel ink-filled ball point pen has a ball of a diameter of 0.3 to 2.0 mm at a tip point with an aqueous gel ink having a viscosity ratio (a value of (viscosity at 10 rpm)/(viscosity at 50 rpm) measured by means of an E type rotational viscometer) of 1.1 to 4.0 and controlled an ink lay down value according to JIS Standard S6053 to 50 to 200 mg/m.

REFERENCES:
patent: 3533708 (1970-10-01), Horie
patent: 4349639 (1982-09-01), Muller
patent: 4384800 (1983-05-01), Dyama
patent: 4653950 (1987-03-01), Yoshida
patent: 4973180 (1990-11-01), Hori
patent: 5150979 (1992-09-01), Gallagher
patent: 5609432 (1997-03-01), Yamamoto et al.

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