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Hohenstein develops bacteria-proof pillow encasings
19
Feb '14
Encasings are most familiar as covers used by allergy sufferers to protect mattresses, pillows and duvets from dust mites. However, these particle tight covers are also an important hygiene precaution anywhere where bed occupancy changes regularly.    
 
Greater use of special pillow encasings would make sense in hospitals and care homes and also in hotels. The covers are bacteria-proof and, like the pillowcases on top of them, are changed and hygienically washed every time someone new occupies the bed. This ensures that no bacteria can be passed via the pillow from one guest or resident to another.
 
Until now, though, there were some real disadvantages to the encasings that were available on the market, on account of the coated membrane inside them: people found them less comfortable to sleep on because of the disturbing rustling noises and the delayed release of air when they moved about. 
 
Now, as part of a research project
Scientists at the Hohenstein Institute have developed a new kind of pillow encasing. Firstly, thanks to the use of bacteria-proof warp-knitted fabrics with a special membrane, the noise has been noticeably suppressed. Secondly, they are more breathable than earlier products, i.e. they absorb the sleeper's sweat more effectively and wick it away from his or her head and body.
 
First of all, the team led by Dr. Jan Beringer analysed all the things for which existing pillow encasings were criticised and then they designed an entirely new and optimized product. The textile researcher is sure that the new pillow encasings will be widely welcomed. "Until now, despite their clear advantages in terms of hygiene, pillow encasings have not been very widely used in this kind of institution. 
 
Weighing up the costs and the benefits often resulted in conventional pillow encasings not being used," says Dr. Beringer. "It's not surprising, because there were lots of complaints about the loud rustling noise, the "airbag effect" caused by delayed release of air and generally disturbed sleep due, for example, to excessive sweating."
 
In their research, the scientists paid particular attention to reducing the loud rustling noises which occur right in your ear as you move your head, and so greatly impair your rest or recovery. Considerable noise reduction was achieved by ensuring that the fabrics used were ideally suited to their purpose. The underlying design principle is that a fabric should be chosen that is as fine as possible. In this project, warpknitted fabrics were used. 
 
 
 

Hohenstein Laboratories


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