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Instead, adhesive is on a double-coated release liner for winding on a roll. Sometimes the adhesive is sandwiched between two liners. Sometimes the adhesive is sandwiched between two liners. Archival tape is similar to transparent office tape, with low-acid adhesives that will not degrade surfaces they are applied to, protecting documents from ...
Styrene block copolymers (SBC), also called styrene copolymer adhesives and rubber-based adhesives, have good low-temperature flexibility, high elongation, and high heat resistance. They are frequently used in hot melt adhesive applications, where the composition retains tack even when solidified; however non-pressure-sensitive formulations are ...
Prior to the development of the tape dispenser, 3M's standard clear scotch tape was sold as a roll, and had to be carefully peeled from the end and cut with scissors. To make the product more useful, the scotch tape sales manager at 3M, John Borden, designed the first tape dispenser in 1932, which had a built-in cutting mechanism and would hold the cut end of the tape until its next use.
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The laminating adhesive had previously been asphalt but now is more commonly a hot-melt atactic polypropylene. Water-activated tape in a tape dispenser . Water-activated tape is used for closing and sealing boxes. Before closing corrugated fiberboard boxes, the tape is wetted or remoistened. Such tape is usually 3 inches (or 7.5 cm) wide.
Electric semi-automatic label dispensers were first patented in the early 1970s. They were originally designed for multiple-row address labels for bulk mailing houses. On average a good mailing house employee could apply approximately 500 labels per hour to envelopes. The label dispenser increased this to over 2,000 per hour.
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Styrene is an organic compound with the chemical formula C 6 H 5 CH=CH 2. Its structure consists of a vinyl group as substituent on benzene. Styrene is a colorless, oily liquid, although aged samples can appear yellowish. The compound evaporates easily and has a sweet smell, although high concentrations have a less pleasant odor.
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