Carbonless copy note pad
AssigneeTaiwan Hopax Chemicals Mfg. Co., Ltd.
InventorsTsung-Tien Kuo, Hsien-Min Kuo, Ho-Tsai Lin, Ming-Yang Li
Life of this patent
Estimating the term…
Abstract
A carbonless copy note pad includes a stack of note sheet sets. Each of note sheet sets includes first and second paper sheets, first and second adhesive layers, a color-developing coating layer, and a coarse particle coating layer. The color-developing coating layer is formed on at least one of the first and second paper sheets. The coarse particle coating layer is formed on a lower surface of the second paper sheet, and has a roughened surface to prevent a scribbling pressure applied to a writing surface of the first paper sheet of a topmost one of the note sheet sets from affecting a next one of the note sheet sets.
Claims17
A carbonless copy note pad comprising:
- a stack of note sheet sets each of which includes:
- a first paper sheet having a writing surface and a back surface opposite to said writing surface;
- a second paper sheet having an upper surface to face said back surface of said first paper sheet, and a lower surface opposite to said upper surface;
- at least one color-developing coating layer formed on at least one of said first and second paper sheets;
- and
- a coarse particle coating layer which is formed on said lower surface of said second paper sheet, and which has a roughened surface such that a scribbling pressure resulting from a scribbling movement on said writing surface of said first paper sheet is dispersed so as to prevent the scribbling pressure from acting on said next one of said note sheet sets,
- wherein said coarse particle coating layer is a coarse particle-containing binder layer.
A carbonless copy note pad comprising:
- a stack of note sheet sets each of which includes:
- a first paper sheet having a writing surface and a back surface opposite to said writing surface;
- a second paper sheet having an upper surface to face said back surface of said first paper sheet, and a lower surface opposite to said upper surface;
- a first adhesive layer which is permanently bonded to said back surface of said first paper sheet, and which is releasably attached to said upper surface of said second paper sheet;
- a color-developing coating layer formed on at least one of said first and second paper sheets;
- and
- a coarse particle coating layer which is formed on said lower surface of said second paper sheet, and which has a roughened surface such that a scribbling pressure resulting from a scribbling movement on said writing surface of said first paper sheet is dispersed so as to prevent the scribbling pressure from acting on said next one of said note sheet sets,
- each of said first and second paper sheets having a side edge, said side edges of said first and second paper sheets of said note sheet sets being flush with each other and being bonded together by gluing,
- wherein said coarse particle coating layer is a coarse particle-containing binder layer.
Dependencies are inferred from the claim text.