Simultaneous quantification of 17 cannabinoids in cannabis inflorescence by liquid chromatography–mass spectrometry
Ingrain (or wood-chip) wallpaper is a decorating material. It consists of two layers of paper with wood fibre in between; different kinds of ingrain wallpaper are distinguished by the size and form of the fibre pieces.
Ingrain wallpaper was invented by German pharmacist Hugo Erfurt in 1864; marketed by the company his grandfather founded, it was first used as a decoration for shop windows, but began seeing use as a wallpaper from the 1920s on as well.
Ingrain wallpaper is the most commonly used type of wallpaper in Germany.[citation needed] It was also commonplace in the United Kingdom from the 1960s onwards.
It can also be very difficult to remove, especially when several coats of paint have been applied.[1]
References
- ^ Denslow, William. "How to Remove Ingrain Wallpaper". The Naked Walls Wallpaper. Archived from the original on 2015-02-25. Retrieved 2015-02-24.
