Find a huge selection of Beverages PE Shrink Wrap from China at Xiamen Guanhua. There are multiple forms that PE can take, but the three most common would be Low-Density Polyethylene (LDPE), Linear Low-Density Polyethylene (LLDPE), & High-Density Polyethylene (HDPE). Each of these is best used in different industrial applications, but for shrink packaging, LDPE would be the most common form.
Shrink wrap and stretch wrap are often confused as they look very similar, but they perform very differently. When PE is used in a shrink wrap application, it is loosely placed over a single item or multiple items and will shrink around them when heat is applied, creating a tight, tamper-resistant seal of protection. When PE is used in stretch applications, it is formulated differently to be able to stretch around items.
The elastic memory of the wrap, along with its ability to cling to itself, keeps a tight layer of protection around the items. Stretch wrap is generally used for palletizing, AKA unitizing, multiple items on a pallet to keep them from shifting during shipment. Stretch wrap usually stretches about 100-300% where shrink wrap will typically only stretch to around 50-75% before breakage occurs.
1.LDPE (Low-Density Polyethylene)- low melting point, good stretch & strength - commonly used for foods and meat products and stretch wrapping/palletizing
2.LLDPE (Linear Low-Density Polyethylene) - thinner than LDPE, just as strong, decent clarity - used for bulk foods, frozen foods, prints, grocery, trash bags, palletizing/stretch wrapping
3.HDPE (High-Density Polyethylene) - one of the most common polymers in plastics packaging - USDA/FDA-approved for food contact, lightweight, durable, water-resistant, bad O2-resistance- good for certain foods, retail products, clothing, stretch wrap for pallets
4.Good for lower-end applications and unitization, replacement of master corrugated shippers, larger items
5.More expensive, but durable
6.Polyethylene shrink wraps are recyclable
7.Thicker- offering more stretch-ability
8.Shrinks as it cools rather than heats, requiring additional cooling space at the end of the tunnel
9.Applications include large heavy items
10.In thicker gauges and larger applications, wrapping boats for storage