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Desiccant packets are compact, extremely durable,
non-dusting sorbent packets which take up little space in packaging, yet have high
moisture adsorbing capacity. Desiccant packets are offered with a variety of sorbent
blends and sizes to meet specific packaging needs. |
Desiccant packets have several distinct advantages for
your packaging:
- Small sizes with superior performance capacity
- Constructed with extremely durable, tear resistant, medical
grade, uncoated Tyvek®.
- Non-dusting design
- Compatible with automatic dispensing equipment
Typical applications include:
- Pharmaceuticals
- Medical diagnostic kits
- Electronic equipment
- Optical instruments
- Food packaging
Cost-effective, space-saving packaging protection
without standing versatility
Desiccant packets are designed to give you a superior, cost-effective sorbent packet
for your packaging requirements. The low profile and compact packet shape uses little
package space, giving desiccant packets great versatility for a wide variety of packaging
applications.
Superior packaging material
Desiccant packets are formed of heat sealed uncoated Tyvek® or GDTII, an
extremely tough and durable sheet of spunbonded polyolefin fibers.
- High strength - Desiccants packs have high tear strength
in all directions and is virtually puncture-proof to eliminate risk of leakage and product
contamination.
- High WVTR, Controlled Porosity - A high water vapor
transmission rate (WVTR) makes the material ideal for sorbent packets. Porosity is closely
controlled during the manufacturing process to assure consistency batch after batch. This
eliminates any variation in the allowable handling time of a desiccant packet.
- Non-dusting, non-linting - The dense packing of the fine
Tyvek fibers forms a tight barrier to particulate matter and prevents desiccant dusting.
desiccant packets have a stable, abrasion resistant surface and are not subject to
linting.
- Wet Strength - Desiccant packets are unaffected by water
or moisture and is as strong wet as it is dry. It will not rot or mildew.
- Odor and moisture adsorption - Our desiccant packets are
permeable to odors and gases, thus a desiccant packet containing an appropriate sorbent
blend can be used for both odor and moisture protection.
- FDA and USDA Status - The medical grade Tyvek used in our
desiccant packet construction is chemically inert and can be used in food and
pharmaceutical packaging applications.
Efficient package design
- Compact - The low profile and compact shape of desiccant
packets save space and displaces a minimum amount of product. Its flat contour eliminates
any potential confusion with a capsule or a pill.
- Maximum surface exposure - The exceptionally narrow seal
skirt on only two ends gives desiccant packets an unusually large adsorptive surface area
for its overall size.
- Integral window - An integral transparent strip permits
observation of the contained adsorbent and allows effective use of indicating desiccants
to show when moisture has been adsorbed and desiccant should be replaced.
A choice of sorbent blends.
Desiccant packets can be produced in a wide choice of sorbents and sorbent blends to
meet your specific needs. Blends of odor and moisture adsorbent compounds may be furnished
when both odor and moisture protection are desired.
| SORBENT |
 FEATURES |
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| Silica Gel |
- Typically used in food and pharmaceutical applications
- High crush strength and high porosity
- Remains dry and free flowing even when saturated
- Has relatively high capacity for moisture at temperatures below
77°F (25°C) with relative humidity above 40%
- Chemically inert, non-corrosive and non-toxic
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Indicating
Silica Gel |
- Color changes to indicate moisture content
- Typically used in food and pharmaceutical applications
- High crush strength and high porosity
- Remains dry and free flowing even when saturated
- Has relatively high capacity for moisture at temperatures below
77°F (25°C) with relative humidity above 40%
- Chemically inert, non-corrosive
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Molecular
sieve |
- Uniform adsorptive pore size makes it an excellent getter for
water
- Greater capacity for water adsorption than either clay or silica
gel where temp exceeds 77°F (25°C) and/or critical relative humidity is below 40%
- Added capacity to adsorb organic odor-causing molecules
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Clay
(Montmorillonite) |
- Produced by the controlled drying of montmorillonite, a naturally
occurring mineral
- Essentially non-swelling
- Can both take on and give up moisture without deterioration
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| Activated Carbon |
- Foremost getter for organic molecules and sulfur-bearing
compounds
- Primary application is odor removal
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Moisture/Odor
Blends |
- Mixtures of clay or silica gel with activated carbon in a 50/50
or 60/40 ratio
- Provides both desiccating and odor gathering properties in a
single packet.
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