Image-offsetting

Details Image-offsetting Image-offsetting

1979-05-23

1981-01-13

Hess, Bruce H.

Textiles: manufacturing

106 145, 106 21, 427150, 428307, 428537, 428914, 564 77, 564149, B41M 516, B41M 522, C09D 1100

Patent

active

042446040

ABSTRACT:
A composition capable of reducing image-offset when used in combination with color-forming compounds which are capable of forming colored images with color-developing coreactants. The composition comprises an aliphatic tertiary amine image-offset control agent. Color-forming compounds such as dithiooxamide, dithiooxamide derivatives and certain aromatic substituted hydrazones, may also be included in the composition. The invention when employed in the art of carbonless paper enables the production of dark, black images in areas of a paper substrate containing color-forming compositions and transition metal color-developing compositions, without image-offsetting in areas not containing both the color-forming compound and the color-developing compound, even upon stacking color-forming compound containing sheets on top of color-developing compound containing sheets.

REFERENCES:
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patent: 3411976 (1968-11-01), Meliker et al.
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patent: 3547646 (1970-12-01), Hori et al.
patent: 3809668 (1974-05-01), Yarian
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patent: 4101690 (1978-07-01), Miyamoto et al.
patent: 4111462 (1978-09-01), Lange et al.
patent: 4125636 (1978-11-01), Kamio et al.
Sacconi, J.A.C.S., 75, 5434 (11-5-53).
Moller, Carl R., Chemistry of Organic Compounds, 233-234 (1951).

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