Tamper-evident band

[2] A security band can be integrated with the cap or can be a separate package component.

While tamper-evident bands are not considered a challenge for recycling, it is important that the band stays attached to the cap in case of refillable bottles, because it is hard to remove the rings from intact bottles in an economical way.

[1][7] Security opening rings might have several possible purposes: When an aluminum or plastic bottle cap has an integral band, it is usually connected by thin bridges.

Most standard pressure sensitive tapes do not have a high degree of tamper evidence.

Some have intentional weakness which cause breakage or delamination; others have hidden messages which appear upon opening.