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Richard Gurley Drew (June 22, 1899 – December 14, 1980) was an American inventor who worked for Johnson and Johnson, Permacel Co., and 3M in St. Paul, Minnesota, where he invented masking tape and cellophane tape. [1]
Offset printing is a common printing technique in which the inked image is transferred (or "offset") from a plate to a rubber blanket and then to the printing surface. When used in combination with the lithographic process, which is based on the repulsion of oil and water, the offset technique employs a flat (planographic) image carrier.
The paper is removed, and the ink has been transferred from the plate to the paper. Micro-topography of an ordinary French post stamp (detail) showing the thickness of ink obtained by intaglio. The words la Poste appeared in white on red background and hence corresponds to areas with a lack of ink.
The original notes' canary yellow color was chosen by chance, from the color of the scrap paper available at the lab next door to the Post-it team. [17] Fry provided 3M employees with a prototype of the product, and individuals started exchanging messages, demonstrating the product's communicative effectiveness. [13]
In 2008, 3M created the Renewable Energy Division within 3M's Industrial and Transportation Business to focus on Energy Generation and Energy Management. [ 87 ] [ 88 ] In late 2010, the state of Minnesota sued 3M for $5 billion in punitive damages, claiming they released PFCs —classified a toxic chemical by the EPA—into local waterways. [ 89 ]
A loose leaf (also loose leaf paper, filler paper or refill paper) is a piece of paper of any kind that is not bound in place, or available on a continuous roll, and may be punched and organized as ring-bound (in a ring binder) or disc-bound. Loose leaf paper may be sold as free sheets, or made up into notepads, where perforations or glue allow ...
However, impressions can vary considerably, whether intentionally or not. Master printmakers are technicians who are capable of printing identical "impressions" by hand. A print that copies another work of art, especially a painting, is known as a "reproductive print". Multiple impressions printed from the same matrix form an edition. Since the ...
Letterpress commonly features a relief impression of the type, although this was considered bad printing in traditional letterpress. [11] Letterpress's goal before the recent revival of letterpress was to not show any impression. The type touched the paper slightly to leave a transfer of ink, but did not leave an impression.