Perforated Pre-Stretched Films For Maximum Aeration

China Pack Suppliers Company is a manufacturer of perforated pre-stretched films for maximum aeration, made for pallet loads that still need to breathe after wrapping. This vented stretch film uses PE / LLDPE material, controlled perforation and factory pre-stretching to release heat, moisture and trapped air while keeping the pallet stable. It is used for fresh produce, flowers, beverages, cold-chain goods, hot-fill products and wet pallet loads where closed film may slow cooling or hold condensation.

Product Overview

Perforated pre-stretched films for maximum aeration are produced for loads that need airflow and controlled holding force together. The film is pre-stretched before use, so packaging teams can wrap pallets with less pulling effort and steadier tension. On soft produce, flower trays, damp cartons or warm palletized goods, this helps avoid over-tight wrapping that may crush products, deform cartons or close the air gaps needed for cooling.

The hole pattern must work after wrapping, not only on the roll. Typical hole diameter is around 6-20 mm before stretch, with larger openings after tension is applied. Hole spacing is often 40-100 mm, or adjusted to crates, cartons, trays and cold-chain packaging. Aligned or staggered perforation layouts can be selected according to load shape, overlap rate and airflow requirements.

Manual pre stretched vented films are used for smooth, low-force wrapping without damaging soft or damp packaging. For automatic or semi-automatic lines, pre stretched vented stretch films should match 150%, 200% or 250% power pre-stretching systems. Sample rolls should be checked on actual pallet height, overlap rate and wrapping tension before the final specification is fixed.

Benefits

• Allows air to move through wrapped pallets for cooling and temperature pull-down.
• Helps wet cartons, chilled goods and hot palletized products release moisture.
• Reduces condensation that may soften cartons, blur labels or encourage mold.
• Low-force wrapping helps apply steady tension without over-compressing the load.
• Reinforced bands and clean hole edges help limit tearing around perforations.
• Supports pallet holding when overlap, corner coverage and film tension are set correctly.
• Suitable for breathable stretch film applications where vented, perforated and pre-stretched performance must work together.

What Should Be Checked Before Using Perforated Pre-Stretched Film on Breathable Pallets?

A breathable pallet should be checked after wrapping. With 30%-50% overlap, too many film layers can partly block airflow channels around carton corners, bottle trays, produce crates and uneven pallet edges. During trials, check whether hole edges remain clean, reinforced bands stay aligned near the hole rows, and the top, middle and bottom of the pallet keep enough containment force.

TDS

Applications

• Fresh produce pallets, including vegetables, fruit and breathable crate loads.
• Flowers, plants and floricultural products needing air exchange after wrapping.
• Beverage pallets where heat release, load ventilation and corner strength matter.
• Hot-fill products that need cooling after palletizing without trapped vapor.
• Chilled loads, frozen loads, dairy, meat and fish packaging with condensation risk.
• Wet products, damp cartons and fumigated or off-gassing loads.

How Does Pre-Stretching Improve Low-Force Wrapping and Maximum Aeration?

Pre-stretching lets the film open smoothly before it reaches the pallet, so operators do not need heavy pulling to get working tension. On suitable hand or machine systems, the film is already extended into its usable range, helping reduce crushed produce, deformed cartons and blocked air gaps. As the film stretches, the perforations open further and create wider paths for heat release, moisture escape and cold-chain temperature pull-down. The film must wrap easily, while reinforced areas around the hole rows still hold the load during movement, storage and handling.

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FAQ

Q1: Is this film the same as normal hand stretch film?

No. It is a pre stretched breathable thin stretch film designed with perforations for airflow, moisture dissipation and heat release.

Q2: How should the hole pattern be selected?

Hole diameter, spacing and layout should match product shape, overlap rate and wrapping equipment.

Q3: Can it be used on machine wrappers?

Yes. Machine grades can be matched with semi-automatic or power pre-stretching systems and tested at the planned pre-stretch setting.

Q4: How can pallet stability be checked?

Check top, middle and bottom containment force, corner breaks, hole-edge tearing and blocked airflow channels.