Containerize Cargo Moisture Absorber
Moisture Absorbent - Container Desiccant
Protect Cargo With Moisture Absorbing Products
Most of this damage can be prevented by the appropriate use of moisture absorbing products like container desiccants for shipping containers. They will not only help to prevent and limit moisture condensation in the container, but will also work all the time to help to prevent serious cargo damage caused by prolonged periods of elevated humidity.
Moisture damage often seems unpredictable. After five containers with no problem, there may be one that is a disaster. This is not due to any mysterious causes, but is a consequence of the exponential character of most of the underlying processes. This means that a small change in conditions can have a great effect on the outcome.
Moisture damage is caused by temperature differences
The ultimate cause of all moisture damage in cargo shipments is a difference in temperature. It may be a change in temperature, eg when a container cools down after a hot day in the sun. Or it may be a difference in temperature between different parts of a cargo, eg when a cargo loaded at a cool temperature and then shipped across the equator.
There is a maximum amount of moisture that air at a particular temperature can hold. Any excess moisture beyond this amount will be condensed as a fog of small droplets floating in the air or as dew on a nearby cold surface.
Warm air can hold more moisture than cold air. When warm air cool down it becomes more humid, even though there is no change in the amount of moisture the air contains. If the temperature drops enough condensation will occur.
How humid the air is depends on its Relative Humidity (RH). This is quite simply the percentage of moisture held in the air out of the maximum that air of that temperature could hold. Entirely dry air has RH 0 . Maximally humid air has an RH of 100.
There is rarely any moisture damage if RH is less than 60-70%.
As a rough rule of thumb the amount of moisture the air can hold doubles for every 10 C over “normal” temperatures. If for instance air of 20 C and RH 50% is cooled to 10 C, the RH will reach 100%. Any further cooling would cause immediate condensation. If the air was then heated, the RH would drop below 100% and any condensation that had happened would over time reevaporate back into the air.
Product Features
A huge amount of air has to be dehumidified
Air with high humidity near dew point conditions has to be dehumidified
The packaging system is only semi-closed and the packaging experiences high levels of diffusion (e.g., a seagoing container, cardboard box)
Primary goal of the application of a desiccant is to avoid dew point conditions and the formation of liquid water (container rain)
The packaged good does not show deterioration at moderate to high humidity levels
Container Desiccant Advantages
Ship goods without the threat of “Container Rain”
Inhibits the formation of mold, mildew, rust and corrosion.
Absorbs up to 100% of its weight in moisture
Provides 50 days or more of moisture protection
Prevents weak cartons and loose labels caused by moisture
Environmentally safe and can be disposed of as normal waste
Container Desiccant Applications
Ocean, truck, rail & air shipping containers
Protection of textiles, leather goods, shoes, furniture , Automotive parts
Protection of food products, grains, feeds, pet food, canned goods and bottled products
Glass ,Wood ,Paints and varnishes
Coffee beans, bulk packaged grains, and milled products, Canned goods.
Industrial machinery -Protection of industrial products such as auto parts, machinery, metal products, paper and cardboard boxes
Ideal for boats & RV’s as well as long term storage applications
Container Desiccant has a lot of advantages over silica gel which are highlighted as under:
Much higher adsorption capacity than silica gel
Protects products for longer duration than silica gel
eliminates the problems of cargo sweat and container rain thus protecting valuable products which otherwise will be spoiled due to harmful effects of humidity variation
much lesser quantity of Dew Pouch is required as compared to silica gel
Company
Shenzhen Chunwang Environmental Protection Technology Co., Ltd was established in Shenzhen city, China in 1998. On 9th January, 2015, it successfully listed as a public company. Our Product Series: household moisture absorbers, deodorant for refrigerator, toilet bowl cleaners, car dehumidifier, washing machine cleaner, drain cleaners, car air fresheners, desiccants, container dry bag, oxygen absorber, etc
Company: Chunwang Environmental Protection Technology Co., Ltd
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