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US 2012/0100988 A1Published application
Note pad containing carbonless color-developing material
AssigneeTaiwan Hopax Chemicals Mfg. Co., Ltd.
InventorsTsung-Tien KUO, Jen-Rong LIU, Hsien-Min KUO, Tsun-Rung HSU
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Abstract
A note pad includes: a stack of carbonless note sheets each of which includes: a substrate; and a color-developing coating layer formed on an upper surface of the substrate, and including a plurality of microcapsules and a carbonless color-developing material, each of the microcapsules encapsulating a reactive dye and being breakable, when subjected to a pressure, to release the reactive dye to react with the carbonless color-developing material for color development.
Claims20
A note pad, comprising:
- a stack of carbonless note sheets each of which includes:
- a substrate;
- and
- a color-developing coating layer formed on an upper surface of said substrate, and including a plurality of microcapsules and a carbonless color-developing material, each of said microcapsules encapsulating a reactive dye and being breakable, when subjected to a pressure, to release said reactive dye to react with said carbonless color-developing material and to form colored images.
1 more element
A note pad, comprising:
- a stack of carbonless note sheets, said note sheets including a carbonless note sheet and a regular note sheet, said carbonless note sheet including:
- a substrate;
- and
- a color-developing coating layer formed on an upper surface of said substrate, and including a plurality of microcapsules and a carbonless color-developing material, each of said microcapsules encapsulating a reactive dye and being breakable, when subjected to a pressure, to release said reactive dye to react with said carbonless color-developing material and to form colored images.
1 more element
Dependencies are inferred from the claim text.