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2. Purdue Improved Crop Storage bags - Wikipedia

   en.wikipedia.org/wiki/Purdue_Improved_Crop...

   Purdue Improved Crop Storage (PICS) bags (formerly known as Purdue Improved Cow-pea Storage bags) [1] are bags developed by scientists at Purdue University [2] to store grain and seeds. They use hermetic storage technology to reduce loss of post-harvest cowpea ( Vigna unguiculata ) due to bruchid infestations in West and Central Africa .

3. Resealable packaging - Wikipedia

   en.wikipedia.org/wiki/Resealable_packaging

   The zip is bonded to the packaging by a heat activated adhesive that is pre-applied to the backing of the zip. The first resealable packaging with a zipper was licensed in the United States by Minigrip® in 1954. "Ziplock" is now used as a noun or adjective in relation to plastic bags using this type of seal regardless of manufacturer. [2]

4. Food packaging - Wikipedia

   en.wikipedia.org/wiki/Food_packaging

   Barrier protection - A barrier from oxygen, water vapor, dust, etc., is often required. Permeation is a critical factor in design. Keeping the contents clean, fresh, and safe for the intended shelf life is a primary function. Modified atmospheres or controlled atmospheres are also maintained in some food packages.

5. Modified atmosphere - Wikipedia

   en.wikipedia.org/wiki/Modified_atmosphere

   Other films, called barrier films, are designed to prevent the exchange of gases and are mainly used with non-respiring products like meat and fish. MAP films developed to control the humidity level as well as the gas composition in the sealed package are beneficial for the prolonged storage of fresh fruits, vegetables and herbs that are ...

6. Multilayered packaging - Wikipedia

   en.wikipedia.org/wiki/Multilayered_Packaging

   Multi-layered packaging are multilayer or composite materials using innovative technologies aimed to give barrier properties, strength and storage stability to food items, new materials as well as hazardous materials. [1] Multiple layers are formed by coextrusion, lamination, or various coating technologies. The material of construction of ...

7. Ziploc - Wikipedia

   en.wikipedia.org/wiki/Ziploc

   Ziploc has expanded their products to more than just sandwich bags. Ziploc products have varied from freezer bags to Twist 'n Loc containers, the latter now discontinued. They have expandable bottom bags that stand on their own. The now-discontinued polypropylene Zip 'n Steam bags were used to cook food in a microwave oven. They also have had ...