ฟิล์มห่อม้วนยืดเหยียดแพลเลท LLDPE

Contact Person: Jerry
 
 
 
 
 
 

1. Basic concept of product
Stretch wrap or stretch film is a highly stretchable plastic film that is wrapped around items. The elastic recovery keeps the items tightly bound. It is frequently used to unitize pallet loads but also may be used for bundling smaller items.
Types of stretch film include bundling stretch film, hand stretch film, extended core stretch film, machine stretch film and static dissipative film.
2. Materials
The most common stretch wrap material is linear low-density polyethylene or LLDPE, which is produced by copolymerization of ethylene with alpha-olefins, the most common of which are butene, hexene and octene. The use of higher alpha-olefins (hexene or octene) gives rise to enhanced stretch film characteristics, particularly in respect of elongation at break and puncture resistance. Other types of polyethylene and PVC can also be used. Many films have about 500% stretch at break but are only stretched to about 100 - 300% in use. Once stretched, the elastic recovery is used to keep the load tight. These machines offers safety for the products.
There are two methods of producing stretch wrap.
Blown: The resin is melted and blown out, it is air-cooled. This is a slower process but provides for higher quality in all the areas listed below. The cost of production is also higher due to the quantity that can be produced per hour.
2) Cast: The film is passed over cooling rollers. This makes the cooling process quick. The quality is not as good as blown but more can be produced in an hour lower costs.
Other properties such as break strength, cling, clarity, tear resistance, static discharge, etc. Are also important.
3. Functions
In pallet unitizing, stretch wrap can have several functions:
1) improved stability of products or packages, forming a unit load
2) more efficient handling and storage of unit loads
3) some degree of dust and moisture protection
4) some degree of tamper resistance and resistance to package pilferage
Making sure cartons stay on the pallet is an important consideration in warehouse distribution, especially as the demands for increased throughput continues to rise. Stretch wrapping is the most cost-effective way to keep loads secured, on a pallet
4. Application
Categories and sub-categories of stretch wrappers:
Manual (or Hand) Wrappers:
1)Extended Core: An extension of the film's core serves as a handle for wrapping; This type of wrapper offers little stretch control and is hard on hands.
2)Mechanical Brake: A simple structure supports a film roll and a mechanical brake system provides resistance creating stretch of the film.
3)Pole Wrappers: Similar to the Mechanical Brake system, but the roll and brake are at the end of an extended pole, creating an ergonomic design which eliminates the need to bend to wrap the bottoms of loads and strain to reach the tops of loads.
5. Advantage
1) Protects the packed items from abrasion & scratches
2) Even thickness, excellent clarity
3) Ease of removal
4) Saving cost and handling time
5) Ensuring stability of palletized goods during transportation
6) Environmental protection, non-toxic
7) Great ideals for protecting goods from moisture, rust and dirt

6. General Specifications
1) Thickness: 0.015mm-0.05mm or 10-50micron
2) Width: 0.05m-1.5m or 50-1500mm
3) Length: As your request
4) Color: Transparent, blue, or according to customer's requirement.
5) Net weight: On buyer's option
6) Packing: Cartons or pallets.