By Istvan Benedek, Mikhail M. Feldstein
Featuring the end-use and alertness applied sciences of pressure-sensitive adhesives and items, quantity 3 of the Handbook of Pressure-Sensitive Adhesives and Products discusses the increase and sessions of pressure-sensitive items, the most representatives of pressure-sensitive items, and their program domain names. It divides the most product periods of solvent-based, water-based, and hot-melt-based formulations via their debonding features and water and temperature resistance, and illustrates build-up by way of adhesive-coated, adhesiveless, carrierless, and linerless pressure-sensitive items. It offers program expertise, gear, and novel items similar to RFID, scientific, and labels, in addition to the self-adhesive opponents of pressure-sensitive items. It additionally lists specialist businesses and providers, besides the most literature assets.
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Extra resources for Applications of pressure-sensitive products
Transfer tapes have a PSA layer inserted between two release liners. They are manufactured as a continuous web, supported by a solid-state carrier. This allows them to be processed and applied as a common tape, but serves as a temporary aid only. The adhesive layer of the tape is detached from the carrier during application. Such tapes without a carrier can be used on multidirectionally deformed substrates with a varied shape up to 150°C because the temperature re sistance i s provided by t he ad hesive only.
Very stiff PP (with a modulus of 2400 N/mm2) and low-modulus PP (with a modulus of 100 N/mm2) can be used as carrier materials for labels and tapes . , oriented Pst, PET, and PVC) is situated at 2500–3500 N/mm (E-modulus). Higher stiff ness required for labels can be achieved with special PP homopolymers. Filled PP or heterophase copolymers exhibit a modulus of 3000 N/mm2. Biaxially oriented Pst replaced PVC, but has since been replaced by PET and PP . Bioriented PP (BOPP) is the fastest growing face stock material with sheet- and reelfed options, printable in almost any format.
Water-resistant and watersoluble labels are also manufactured (see also Chapter 4). Freezer labels constitute a special c lass o f lo w-temperature-applicable l abels (see a lso C hapter 4). F ormulation of such special labels is discussed in Technology of P ressure-Sensitive A dhesives a nd Products, Chapter 8. 1). G enerally, t apes a re P SPs t hat h ave a s olid-state c arrier w ith a c oated or built-in pressure-sensitive layer. Some tapes also have a release layer. Because of the need to be applied as a continuous web and due to their general use as a bonding element of multiple adherents, tapes generally must possess a mechanically resistant carrier material with an aggressive PSA.
Applications of pressure-sensitive products by Istvan Benedek, Mikhail M. Feldstein