File:Benzo Colours on Cotton Yarn, Part II - DPLA - 8193ee56c4a9f071ae5e4145d4a3348c (page 21).jpg
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this preview: 496 × 600 pixels. Other resolutions: 198 × 240 pixels | 397 × 480 pixels | 635 × 768 pixels | 847 × 1,024 pixels | 1,694 × 2,048 pixels | 4,521 × 5,465 pixels.
Original file (4,521 × 5,465 pixels, file size: 2.64 MB, MIME type: image/jpeg)
File information
Structured data
Captions
Summary
[edit]Benzo Colours on Cotton Yarn, Part II ( ) | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Creator InfoField | Farbenfabriken vorm. Friedrich Bayer & Co | ||||||||||||||||||||
Title |
Benzo Colours on Cotton Yarn, Part II |
||||||||||||||||||||
Description |
Part II of a sample book from Farbenfabriken vorm. Friedrich Bayer & Co.—the first incarnation of the modern pharmaceutical company Bayer AG established to manufacture and sell synthetic dyestuffs—containing mounted dyed yarn and cotton thread samples. Benzo refers to benzene, indicating the chemistry of direct cotton color from coal-tar derivatives. The samples illustrate benzo colors after treatment with formaldehyde and metallic salts, coupled with parazole FB, and diazotized and developed. The text includes directions, dye concentrations and formulas, and information on color fastness. |
||||||||||||||||||||
Date |
1921 date QS:P571,+1921-00-00T00:00:00Z/9 |
||||||||||||||||||||
Collection |
institution QS:P195,Q5090408 |
||||||||||||||||||||
Source/Photographer |
|
||||||||||||||||||||
Permission (Reusing this file) |
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 14:55, 7 January 2023 | 4,521 × 5,465 (2.64 MB) | DPLA bot (talk | contribs) | Uploading DPLA ID dpla:8193ee56c4a9f071ae5e4145d4a3348c |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Orientation | Normal |
---|---|
Horizontal resolution | 600 dpi |
Vertical resolution | 600 dpi |