Internal packaging

Insulator

Internal packaging can provide shipment protection during distribution. A good internal package should have the ability to protect the product from shock and vibration and can then be restored to its original form to provide further cushioning. There are some internal packaging materials and methods that can be considered before shipping the package.

Internal packaging material

Loose filler particles

It is mainly used as a space filler for lightweight items. It is recommended not to use them for flat, narrow or dense products that may move within the package as these fills can shift and sag during distribution. Such shifts and sag causes the product to shift within the package, with the result that the product is more likely to be damaged. The minimum criteria for using loose packing particles is to use at least three inches (7.62 cm) thick of this packing on each side of the container. In addition, the package will need to be filled beyond at least one to two inches (5.08 cm) thick for shifting and sagging.

Compressed air plastic film

The packaging material is made of two pieces of polyester film sealed together and filled with air bubbles between them. This process allows the compressed air to provide a cushion to prevent shocks. Compressed air provides good cushioning for lightweight items, it is flexible and can be cut so that virtually any shape or size of product can be packaged. It should not be used to package heavy products. When using compressed air plastic film, use a multilayer plastic film to ensure that the entire product is protected, including edges and edges.

Polyethylene foam film

Lightweight, soft, flexible foam film material that provides good surface protection and cushioning properties. It is an ideal material for protecting lightweight objects.

Inflatable packaging

Inflatable packages use air pressure to hold and hold the product in place within the container and provide an inner liner as a cushion. Extreme weather conditions can affect the amount of air pressure in the bag. At extremely low temperatures, the volume of air will be reduced, resulting in excess space within the package, thus increasing the risk of product damage. Extremely high temperatures will cause the air bag to expand, which will stress the joints of the shipping container.

Changes in altitude also affect the air volume in the air bag. Shipping from high altitude to low altitude (for example, packing a shipment in Denver, Colorado, and transporting it to New Orleans, Louisiana) can result in a reduction in air bag size, from low altitude to high altitude High levels of transport can lead to an increase in air bag volume.

Foaming on site

On-site foaming is formed by a chemical mixture that swells outside the contents and forms a protective model. On-site foaming can be modeled around any product, it can be used for edges and corners, to protect the edges, and is useful everywhere it needs to be cushioned. For maximum effectiveness, the live foam must be evenly distributed outside the article. Otherwise, the bubble will not protect the product. Choose the proper density of foam to meet packaging needs, which can span from gap filling to high performance cushioning.

Kraft paper

Kraft paper is used to wrap and wrinkle the kraft paper to fill the voids in the package of light to medium weight, non-breakable items. When kraft paper is used, the kraft paper is tightly packed to reach at least four inches (10.16 cm) thickness around the contents and between the items. Make sure that there are at least four inches (10.16 cm) of thick kraft paper on all six sides of the package.

Filling buffer

Multi-layer paper (non-newspaper or white paper) liners are best suited for packaging medium to large sizes of non-breakable items and those that may require moisture absorption. Filler buffers are ideal for filling voids.

Expanded Polystyrene Foam (EPS)

EPS is a foamable material that is moldable, lightweight, low cost, and has minimal impact cushioning capabilities. The EPS is often designed with ribs that compress and then return to its original shape in the event of a collision. It is not as elastic as other polyester foams (such as polyethylene and polyurethane). EPS is best suited for shipments with low fragility.

Polyethylene foam (PE)

PE is a low density cellular foam. Molded or manufactured PE provides excellent shock and vibration reduction capabilities, making it suitable for buffering high-value or fragile items.

Polyurethane Foam (PU)

Polyurethane is a low density elastic foam that provides good impact absorption and elasticity. Because it is a lightweight elastic foam, it is more suitable for light loading.

Corrugated cardboard

Two or more layers of single-sided or double-sided corrugated cardboard can be stacked together to form a block or cushion material. These liner materials can be used to form a protective barrier between the product and the container. Corrugated liners are best suited for heavy products that are moderately friable to non-breakable. Corrugated board can form the shape of trays, liners, partitions, and other packaging accessories that provide cushioning for moderately brittle to non-breakable products and increase the integrity of shipping containers.

Buffering method

Blocking and support

By using elastic materials, you can absorb impact energy to block and support the shipment, and direct energy to the product's strongest point. Blocking and supporting methods are the preferred buffers for re-wrapping.

Float/filler

Floating is a method of applying small pieces of cushioning material to the outside of the product. These cushioning materials can move or flow to fill the voids in the package and distribute the impact over the entire surface of the product. This method works best when combined with other packaging methods.

Outside packaging

Various types of sheets are used to wrap individual items to protect small items. This method is not enough to protect heavy products.

suspension

Suspension is a method of keeping the packaged product away from the container wall for protection. Materials used for hanging are belts, tapes, slings, multi-tape bands or other supports that act as elastic restraints.

Molded shell

The molded shell is formed according to the shape of the product, and can distribute the force throughout the product.