Warehouse fire safety reviews are a routine part of operations, and they are becoming more detailed as insurance requirements tighten. The review covers storage practices, electrical systems, and the materials that are kept on site. Cushioning material is part of that review, and the type of material affects the outcome.
Plastic cushioning is a concern in fire safety reviews. Bubble wrap and air pillows are made from petrochemical feedstocks, and they burn quickly once ignited. The smoke they produce is toxic, and the heat they generate accelerates the spread of fire to other materials in the building.
Paper cushioning is different. Kraft paper burns, but it burns more slowly and produces less toxic smoke than plastic. The difference matters to inspectors, and it shows up in how the material is classified and how much of it can be stored in a given area.
What Inspectors Look For
Fire safety inspectors evaluate the fire load of a facility, which is the amount of combustible material present. A higher fire load requires more fire suppression capacity, more exits, and more separation between storage areas.
Plastic cushioning contributes to the fire load in a way that paper does not. The volume of plastic cushioning per kilogram is high, because the material is mostly air. A pallet of air pillows is a large volume of combustible material for a relatively small weight. The fire load calculation accounts for that volume, and the result is a higher fire load than the equivalent weight of paper.
Paper cushioning is denser. The same protection capacity requires less volume, which means the fire load is lower. The inspector sees a smaller volume of combustible material, and the facility's fire suppression capacity is not stretched as far.
How On-Demand Production Changes the Fire Load
A honeycomb paper machine changes the fire load because the operation no longer stores finished cushioning material. The material is produced as the parcel is packed, and there is no stock of finished cushioning sitting in a storage area.
What the operation stores is paper rolls. Paper rolls are dense and compact, and they store more protection capacity per cubic meter than finished plastic cushioning. A paper roll length of about 1700m, with a maximum unwind diameter of 500mm and a paper core inner diameter of 75mm, supports a long production run. The storage area for paper rolls is smaller than the storage area for the equivalent volume of plastic cushioning.
Why the Material Matters
The fire safety review is not just about volume. It is also about the material's behavior in a fire. Plastic cushioning melts and drips, which spreads the fire along the floor. Paper cushioning chars and holds its shape, which contains the fire more effectively.
The smoke is also different. Plastic smoke contains toxic compounds that are hazardous to the people who are in the building during a fire. Paper smoke is less toxic, which means the evacuation window is longer and the risk to staff is lower.
What the Machine Delivers
A honeycomb paper machine reduces the fire load by removing the stock of finished cushioning. Die-cutting speed is adjustable between 5 and 18 m/min, and die-cutting width is adjustable between 200 and 500mm. Suitable paper is ≤80gsm, and both virgin kraft paper and recycled paper work.
Power requirements are modest: 1.5kW total power at AC220V/50HZ, with no compressor, heating element, or adhesive system. A compact footprint of just over 1 cubic meter, dimensions around 950x1150x1260mm and net weight near 502kg, means the machine can sit at the packing bench. A die that lasts about 1.0~1.3 million meters keeps the cells uniform across the entire run.
The output from a honeycomb paper machine is biodegradable packaging and degradable packing material, a practical alternative to plastic packing materials, and it supports reuse cartons and paper recycling. For fire safety reviews, that combination reduces the fire load and simplifies the inspection.