1. Introduction: Biaxially
oriented polypropylene has becomes one of the most widely used families,
plastic film in flexible packaging. Box-sealing tape, parcel tape 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. The pressure sensitive printed BOPP self adhesive tape
shall be of 30 micron which shall be reversed printed with base colour and
reverse printed as per approved colour and design.
2. General information: The Tape shall
be free from defect such as gapping, peaking, delimitation, feathering, flaking
of print, curing, telescoping and brittleness when cut. The print should be not
smudgy. The printing shall have sharp. The
brown colour and print shall not peel off when tap is unwound. The tape can be applied
manually and automatic on the boxes. This is used for sealing corrugated boxes.
The printed logos, company name are good for identification.
3. Test
parameter:
· Dimension : Tolerance for width: ± 2 mm
· Cleanliness
check: It should be free from foreign particles and
dust.
· Adhesive test: Stick Bopp tape sample to corrugated box. Once it is nicely
stuck to the box, pull it off in a quick motion. It should tear off the first
paper layer of the corrugated box along with it.
Acceptance criteria: It should tear off the first paper layer of the corrugated
box along with it.
