Correction fluid marker and formulation for fluid

Details Correction fluid marker and formulation for fluid Correction fluid marker and formulation for fluid

1998-12-30

1999-10-12

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 3164, 106 3166, 106 319, C09D 1000

Patent

active

059649313

ABSTRACT:
A correction fluid that prevents clogging of the delivery nib of a correction fluid marker separates into liquid and solid phases while not in use, thereby allowing the liquid phase to transport lubricants and anti-oxidants into the nib between uses to restore and preserve the nib. The correction fluid includes a thixotropic gel that soft settles and creates a gelatinized long lasting network of hydrogen bonded fibers in the formulation which are rejuvenated by shaking of the applicator and which do not appreciably agglomerate over time. The correction fluid further includes weak solvents and mild resins which advantageously do not swell the nib fibers or destroy the adhesives in the nib over time. A correction fluid marker 10 for applying the correction fluid includes a hollow barrel 12 having an interior reservoir 18 for holding the correction fluid, and a porous nib 20 held in a sleeve 22 at one end of the barrel in communication with the reservoir. The correction fluid travels through the nib via capillary action and is applied to a print medium from the tip of the nib protruding from the sleeve. A thin seal 26 seals the correction fluid in the reservoir and prevents the correction fluid from contacting the nib prior to the first use of the marker. A mixing slug 24 having a pointed tip ruptures the seal when brought into contact with the seal by shaking the marker at the time of first use. The marker can have a compressible barrel for squeezing out correction fluid, or a rigid barrel containing pressurize correction fluid releasable with a valve mechanism 58, 60.

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