Adhesive tape
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Adhesive tape is one of many varieties of backing materials coated with an adhesive. Several types of adhesives can be used.[1]
History
[edit]The first records of adhesive tapes are found between 2500 and 3000 BCE (Old Kingdom) in Ancient Egypt. In wound treatment, the lips of the wound would be brought together by adhesive tape or stitching. The use of adhesive tape has been documented in the Edwin Smith Papyrus, and is believed to be based on early observations of the earliest known physician, Imhotep. [2]
Types
[edit]Pressure-sensitive adhesive tape
[edit]
Pressure-sensitive adhesive tape (PSA), also known as self-adhesive tape, self-stick adhesive tape or sticky tape, is a thin and flexible material consisting of a pressure sensitive adhesive coating onto a backing material such as paper, plastic film, cloth, or metal foil. It is sticky (tacky) without any heat or solvent for activation and adheres to surfaces with light pressure. Typical adhesives are polymers such as acrylics, silicone, polyester and rubber.[3] These tapes usually require a release agent on their backing or a release liner to protect the adhesive during storage and manufacturing. [4][5]
Water-activated tape
[edit]Water-activated tape, gummed paper tape or gummed tape is starch- or sometimes animal glue-based adhesive on a paper backing which becomes sticky when moistened.
A specific type of gummed tape is called reinforced gummed tape (RGT). The backing of this reinforced tape consists of two layers of paper with a cross-pattern of fiberglass filaments laminated between. The laminating adhesive had previously been asphalt but now is more commonly a hot-melt atactic polypropylene.
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.
Gummed tapes specifications are the subject of ASTM standard D5749.[6]
Heat-sensitive tape
[edit]Heat-activated tape is usually tack-free until it is activated by a heat source. This is particularly useful in the semiconductor industry.
Drywall tape
[edit]Drywall tape is paper, cloth, or mesh, sometimes with a gummed or PSA adhesive. It is used to make the joints between sheets of drywall materials.[7]
See also
[edit]References
[edit]- ↑ Karmann, Werner; Kummer, Andreas B. (2000). "Tapes, Adhesive". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a26_085. ISBN 3527306730.
- ↑ Shafik, Ahmed (January 1998). "Medicine in Ancient Egypt". Journal of Investigative Surgery. 11 (5): 291–293. doi:10.3109/08941939809032205. ISSN 0894-1939.
- ↑ Antosik, Adrian K.; Bartkowiak, Marcin; Czech, Zbigniew; Zachodniopomorski Uniwersytet Technologiczny (Szczecin), eds. (2022). Pressure-sensitive adhesives based on acrylics. Szczecin: Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie. ISBN 978-83-7663-343-5.
- ↑ Creton, Costantino (June 2003). "Pressure-Sensitive Adhesives: An Introductory Course". MRS Bulletin. 28 (6): 434–439. doi:10.1557/mrs2003.124. ISSN 0883-7694.
- ↑ Einsla, Melinda; Griffith, William; Himmelberger, Daniel; Zolynski, Sarah; Zhang, Sipei; Powell, Terri; Malotky, David (2019-02-10). "Heat‐activated pressure sensitive adhesives for linerless labels". Journal of Applied Polymer Science. 136 (6). doi:10.1002/app.47048. ISSN 0021-8995.
- ↑ "ASTM D5749 Standard Specification for Reinforced and Plain Gummed Tape for Sealing and Securing". ASTM.
- ↑ Hedstrom, Gary (2005). How to Fix Everything for Dummies. For Dummies. p. 81. ISBN 0-7645-7209-1.
External links
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