Streamer
A streamer is a thin, colorful strip of paper rolled up into a compact ring which, when used, can be effectively unrolled by a blown air stream.
Streamers are particularly popular on New Year's Eve and Carnival , but they are generally a popular item for parties. Streamers can be used as joke items as well as for decorative purposes.
Emergence
The inventor of the streamers was the Berlin entrepreneur Paul Demuth, publisher of joke postcards and decorative items in the 1880s. Demuth expanded his company FW Hoppenworth, acquired in 1886, into a large jewelry company. As early as 1887, the Berlin police warned against the use of paper streamers in road traffic.
Manufacturing
Streamers are made from rolls of flame-retardant base paper, which is usually printed in six colors and then rolled onto smaller rolls. These are then cut into the individual streamers' rings. Cutouts in the knives ensure that the streamers stay connected and do not fall apart for the time being. From the width of the large sheet of paper, small rolls with up to 20 streamer rolls each arise. They are wound up tightly during cutting so that no creases appear and the streamer opens particularly easily.
use
The streamer is very easy to unroll. If you blow into the hole in the middle of the coiled streamer, it unfolds and flies through the air with snake-like movements.
According to a series of numerical simulations and tests, the ideal distance between the mouth and the streamers is 25–30 cm. It is irrelevant at what angle the air flow hits the streamer. Once the streamer has started, it unrolls on its own. First of all, it is the negative pressure generated by the air flowing past, then the inertia that ensures complete processing. The material that has already been unrolled also pulls further components out of the ring, so that the snake unrolls completely by itself.
See also
Web links
Individual evidence
- ↑ Pößnecker dealer sheet. Das Versand-Haus , year 24, 1931, p. 14. Quoted from Wolfgang Brückner et al. (Editor), Arbeitskreis Bild Druck Papier, conference proceedings Amsterdam 2007 , Münster 2008, p. 180 f., With comments by D (etlef) Lo ( renz)