Title: Self-contained pressure-sensitive record material and process of preparation

Abstract: A self-contained pressure-sensitive record material comprising a substrate and a coating thereon of an interspersed mixture of pressure-rupturable capsules of an oily solvent solution of a substantially colorless basic chromogenic material and capsules of solid co-reactant acidic resin particles, said co-reactant acidic resin being capable of producing a color upon contact with the chromogenic material. The capsule mixture is applied to the substrate in a single coating step, resulting in a greater production efficiency. The resulting record material provides better imaging characteristics with less print bleed than self-contained systems known in the prior art.

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Inventors: Stevens, Michael F. (Appleton, WI, US)

Application Number: 950062
Filing Date: 1978-10-10
Publication_date: 1980-04-08
Assignee: Appleton Papers Inc. (Appleton, WI)
Primary Class(es): 503/212 106/31.19, 106/31.22, 106/31.24, 264/4.3, 264/4.4, 264/4.7, 264/7, 427/150, 427/151, 427/213.3, 428/402.2, 428/402.24, 428/914, 503/214, 503/215, 503/217, 5
Other Classes:
US Patent Ref:

2929736	Mar, 1960	Miller et al.	428/307.
3516845	Jun, 1970	Brockett	282/27.
3576660	Apr, 1971	Bayless et al.	282/275.
3625736	Dec, 1971	Matsukawa et al.	282/27.
3723156	Mar, 1973	Brockett et al.	282/27.
3901986	Aug, 1975	Brockett et al.	427/150.
3936573	Feb, 1976	Brockett	427/150.
4100103	Jul, 1978	Foris et al.	106/308.

Other Refs:
Primary Examiner: Smith, Ronald H.
Assistant Examiner: Bell, Janyce A.
Attorney: Birch, Stewart, Kolasch and Birch