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A hermetic seal is any type of sealing that makes a given object airtight (preventing the passage of air, oxygen, or other gases). The term originally applied to airtight glass containers but, as technology advanced, it applied to a larger category of materials, including metals, rubber, and plastics. Hermetic seals are essential to the correct ...
Sealed food alongside a home vacuum sealer and plastic rolls used for sealing. Vacuum packing is a method of packaging that removes air from the package prior to sealing. This method involves placing items in a plastic film package, removing air from inside and sealing the package. [1] Shrink film is sometimes used to have a tight fit to the ...
Testing modified atmosphere in a plastic bag of carrots. Food packaging is a packaging system specifically designed for food and represents one of the most important aspects among the processes involved in the food industry, as it provides protection from chemical, biological and physical alterations. [1]
While some cafés may serve bubble tea in a glass, most Taiwanese bubble tea shops serve the drink in a plastic cup and use a machine to seal the top of the cup with heated plastic cellophane. [10] The method allows the tea to be shaken in the serving cup and makes it spill-free until a person is ready to drink it. [ 11 ]
Automatic Can Seamer. A can seamer is a machine used to seal the lid to the can body. The lid or "end" is usually tinplated steel (food) or aluminum (drinks) while the body can be of metal (such as cans for beverages and soups), paperboard (whisky cans) or plastic.
A form-fill-seal process means that the blister pack is created from rolls of flat sheet or film, filled with the pharmaceutical product and closed (sealed) on the same equipment. Such equipment is called a blisterline. There are two types of blister machine' design: rotary and flat-plate, depending on the mechanism for sealing the lidding foil.
Yes, bubble helmets. Not so long ago, in the 1980s, Richard Hinchliffe, a British architect who suffered from allergies, invented a bubble helmet that he claimed protected allergy sufferers from ...
The material was submitted to hot tensile testing, within a temperature range from 600 °C to 1000 °C and strain-rates varying from 10−6 to 1 s−1. The strain rate sensitivity parameter (m) and observed maximum elongation until rupture (εr) could be determined and also obtained from the hot tensile test.