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About Packing Tapes / Adhesive Tapes

Box-sealing tapes, parcel tapes or packing tapes is a pressure-sensitive tape used for closing or sealing corrugated fiberboard boxes. It consists of a pressure-sensitive adhesive coated onto a backing material which is usually a polypropylene or polyester film which is oriented to have strength in both the long (machine) direction and the cross direction.

Most often, the tape is 48 mm (approx. 2 inches) wide but it is also used in 72 mm (approx. 3-inch) widths.

A variety of backing strengths and calipers as well as adhesive formulations are available. It is often transparent or tan (beige, buff and brown). Other colors and printing are sometimes available.

The tape is most often used as a closure for regular slotted containers (RSCs). A “single strip” or “center seam” closure is applied over the center seams of a box extending 50–75 mm (2–3 inches) onto the end panels.

The tape can be used as a “six-strip” closure or “H-seal” by applying cross strips on the ends of the box. This is used when a relatively weak tape is used or when extra box reinforcement is needed. This method also seals the box to help keep contaminants out.

This tape has also been used by artists as a way to create molds of objects, as the strength of the tape allows for a strong shell for the mold when completed.

Environmental consideration

Based on the solid waste hierarchy, the quantity and size of a tape should be minimized without reducing necessary functionality. Material content of a tape should comply with applicable regulations. Life cycle assessments of the tape and the item being taped are useful to identify and improve possible environmental effects. For example, there may be instances where the use of a PSA tape, compared to an alternative solution, improves the overall environmental impact: or vice versa.

If a tape remains on the corrugated box during recycling, a tape should be chosen which does not hinder box recyclability. For example, when taped corrugated boxes are recycled, a film backed box sealing tapes do not hinder box recycling: the PSA adhesive stays with the backing and is easily removed.