公开(公告)号：US3900671A

公开(公告)日：1975-08-19

申请号：US29548472

申请日：1972-10-06

Applicant: WIGGINS TEAPE RES DEV

Inventor： EVANS BRIAN EDWARD

IPC: B41M5/132 ,  B41M5/124 ,  B41M5/155 ,  B41C1/06 ,  B41M5/00

CPC classification number: B41M5/1243 ,  Y10S428/905 ,  Y10T428/253 ,  Y10T428/31775

Abstract: A capsule-carrying sheet or web, e.g. a sheet carrying capsules containing a colour-reactant material for use in a pressuresensitive copying system, in which one surface of the sheet or web carries a coating incorporating the capsules, together with starch particles acting as a protection for the capsules against accidental rupture and a protein binder binding the capsules and starch particles together on the surface, both the starch particles and the protein binder being derived from a common milled flour source, e.g. by agitation of an aqueous suspension of the milled flour.