Purple Dye - Revision history

Engstores.unofficial: /* History at Engineering Schools */

2025-03-24T19:51:35Z

History at Engineering Schools

← Older revision		Revision as of 15:51, 24 March 2025
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	=== History at Engineering Schools ===		=== History at Engineering Schools ===
	The actual tradition of engineering students dyeing themselves purple appears to have begun around the late 1970s and early 1980s. The tradition is said to have started at Queen's University or Western University, whom had used certain purple colouring on their bodies to symbolize the profession of engineering.<ref>Letter from Rob West to the Archives</ref> This practice gradually turned into a full-body dye for many.

	[[File:Dye-2004.jpg\|thumb\|Purple Sunday 0T4. ]]		[[File:Dye-2004.jpg\|thumb\|Purple Sunday 0T4. ]]

			The actual tradition of engineering students dyeing themselves purple appears to have begun around the late 1970s and early 1980s. The tradition is said to have started at Queen's University or Western University, whom had used certain purple colouring on their bodies to symbolize the profession of engineering.<ref>Letter from Rob West to the Archives</ref> This practice gradually turned into a full-body dye for many.

	The dye tanks currently in use at the University of Toronto were made in 2015 (full-body) and 2017 (partial-body). Before this, students would lower themselves into clean, repurposed garbage cans and have dye splashed over them with hard hats. During the pandemic, dye was applied with sprayers in order to comply with social distancing rules.		The dye tanks currently in use at the University of Toronto were made in 2015 (full-body) and 2017 (partial-body). Before this, students would lower themselves into clean, repurposed garbage cans and have dye splashed over them with hard hats. During the pandemic, dye was applied with sprayers in order to comply with social distancing rules.

Engstores.unofficial: /* History at Engineering Schools */

2025-03-24T19:51:05Z

History at Engineering Schools

← Older revision		Revision as of 15:51, 24 March 2025
Line 14:		Line 14:

	=== History at Engineering Schools ===		=== History at Engineering Schools ===
	The actual tradition of engineering students dyeing themselves purple appears to have begun around the late 1970s and early 1980s. The tradition is said to have started at Queen's University or Western University, whom had used certain purple colouring on their bodies to symbolize the profession of engineering.<ref>Letter from Rob West to the Archives</ref> This practice gradually turned into a full-body dye for many.		The actual tradition of engineering students dyeing themselves purple appears to have begun around the late 1970s and early 1980s. The tradition is said to have started at Queen's University or Western University, whom had used certain purple colouring on their bodies to symbolize the profession of engineering.<ref>Letter from Rob West to the Archives</ref> This practice gradually turned into a full-body dye for many.

			[[File:Dye-2004.jpg\|thumb\|Purple Sunday 0T4. ]]

			The dye tanks currently in use at the University of Toronto were made in 2015 (full-body) and 2017 (partial-body). Before this, students would lower themselves into clean, repurposed garbage cans and have dye splashed over them with hard hats. During the pandemic, dye was applied with sprayers in order to comply with social distancing rules.

	== The Dye ==		== The Dye ==

Admin at 15:51, 1 December 2024

2024-12-01T15:51:55Z

← Older revision		Revision as of 11:51, 1 December 2024
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	The University of Toronto Engineering Society and other student societies in Canada are investigating alternatives to gentian violet as part of orientation festivities.<ref>https://www.thestar.com/news/gta/2019/07/10/popular-campus-purpling-practice-under-review-in-wake-of-health-canada-warning.html</ref>		The University of Toronto Engineering Society and other student societies in Canada are investigating alternatives to gentian violet as part of orientation festivities.<ref>https://www.thestar.com/news/gta/2019/07/10/popular-campus-purpling-practice-under-review-in-wake-of-health-canada-warning.html</ref>

			=== New Formula ===
	In F!rosh 2T3, the coloring ingredients of the dye is a mixture of Phloxine B and Brilliant blue FCF, two dyes approved by the United States Food and Drug Administration (FDA). In addition, Mehron purple body paint makeup liquid was used as the short-term dye. F!rosh are required by the faculty to not dye faces and open wounds.		In F!rosh 2T3, the coloring ingredients of the dye is a mixture of Phloxine B and Brilliant blue FCF, two dyes approved by the United States Food and Drug Administration (FDA). In addition, Mehron purple body paint makeup liquid was used as the short-term dye. F!rosh are required by the faculty to not dye faces and open wounds.

	== References ==		== References ==
	<references/>		<references/>

Karen: /* Health Concerns */ I changed the word 'F!roshes' to 'F!rosh'. The plural of F!rosh is F!rosh.

2024-04-21T22:35:28Z

Health Concerns: I changed the word 'F!roshes' to 'F!rosh'. The plural of F!rosh is F!rosh.

← Older revision		Revision as of 18:35, 21 April 2024
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	The University of Toronto Engineering Society and other student societies in Canada are investigating alternatives to gentian violet as part of orientation festivities.<ref>https://www.thestar.com/news/gta/2019/07/10/popular-campus-purpling-practice-under-review-in-wake-of-health-canada-warning.html</ref>		The University of Toronto Engineering Society and other student societies in Canada are investigating alternatives to gentian violet as part of orientation festivities.<ref>https://www.thestar.com/news/gta/2019/07/10/popular-campus-purpling-practice-under-review-in-wake-of-health-canada-warning.html</ref>

	In F!rosh 2T3, the coloring ingredients of the dye is a mixture of Phloxine B and Brilliant blue FCF, two dyes approved by the United States Food and Drug Administration (FDA). In addition, Mehron purple body paint makeup liquid was used as the short-term dye. F!~~roshes~~ are required by the faculty to not dye faces and open wounds.		In F!rosh 2T3, the coloring ingredients of the dye is a mixture of Phloxine B and Brilliant blue FCF, two dyes approved by the United States Food and Drug Administration (FDA). In addition, Mehron purple body paint makeup liquid was used as the short-term dye. F!rosh are required by the faculty to not dye faces and open wounds.

	== References ==		== References ==
	<references/>		<references/>

138.51.66.60: frosh 2t3

2023-09-04T01:36:37Z

frosh 2t3

← Older revision		Revision as of 21:36, 3 September 2023
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	The University of Toronto Engineering Society and other student societies in Canada are investigating alternatives to gentian violet as part of orientation festivities.<ref>https://www.thestar.com/news/gta/2019/07/10/popular-campus-purpling-practice-under-review-in-wake-of-health-canada-warning.html</ref>		The University of Toronto Engineering Society and other student societies in Canada are investigating alternatives to gentian violet as part of orientation festivities.<ref>https://www.thestar.com/news/gta/2019/07/10/popular-campus-purpling-practice-under-review-in-wake-of-health-canada-warning.html</ref>

	In F!rosh 2T3, the coloring ingredients of the dye is a mixture of Phloxine B and Brilliant blue FCF, two dyes approved by the United States Food and Drug Administration (FDA). In addition, Mehron purple body paint makeup liquid was used as the short-term dye ~~that washes off immediately~~.		In F!rosh 2T3, the coloring ingredients of the dye is a mixture of Phloxine B and Brilliant blue FCF, two dyes approved by the United States Food and Drug Administration (FDA). In addition, Mehron purple body paint makeup liquid was used as the short-term dye. F!roshes are required by the faculty to not dye faces and open wounds.

	== References ==		== References ==
	<references/>		<references/>

138.51.66.60: frosh 2t3

2023-09-04T01:34:31Z

frosh 2t3

← Older revision		Revision as of 21:34, 3 September 2023
Line 28:		Line 28:

	The University of Toronto Engineering Society and other student societies in Canada are investigating alternatives to gentian violet as part of orientation festivities.<ref>https://www.thestar.com/news/gta/2019/07/10/popular-campus-purpling-practice-under-review-in-wake-of-health-canada-warning.html</ref>		The University of Toronto Engineering Society and other student societies in Canada are investigating alternatives to gentian violet as part of orientation festivities.<ref>https://www.thestar.com/news/gta/2019/07/10/popular-campus-purpling-practice-under-review-in-wake-of-health-canada-warning.html</ref>

			In F!rosh 2T3, the coloring ingredients of the dye is a mixture of Phloxine B and Brilliant blue FCF, two dyes approved by the United States Food and Drug Administration (FDA). In addition, Mehron purple body paint makeup liquid was used as the short-term dye that washes off immediately.

	== References ==		== References ==
	<references/>		<references/>

Admin: Removed protection from "Purple Dye"

2023-02-08T15:10:08Z

Removed protection from "Purple Dye"

← Older revision		Revision as of 11:10, 8 February 2023
(No difference)

Archivist: Protected "Purple Dye" ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite))

2019-07-30T21:28:06Z

Protected "Purple Dye" ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite))

← Older revision		Revision as of 17:28, 30 July 2019
(No difference)

Admin: /* Health Concerns */

2019-07-11T14:42:49Z

Health Concerns

← Older revision		Revision as of 10:42, 11 July 2019
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	After completing two safety assessments, the Department concluded that, as with other known cancer causing substances, there is no safe level of these products, and therefore any exposure to these products is a cause for concern.		After completing two safety assessments, the Department concluded that, as with other known cancer causing substances, there is no safe level of these products, and therefore any exposure to these products is a cause for concern.

			The University of Toronto Engineering Society and other student societies in Canada are investigating alternatives to gentian violet as part of orientation festivities.<ref>https://www.thestar.com/news/gta/2019/07/10/popular-campus-purpling-practice-under-review-in-wake-of-health-canada-warning.html</ref>

	== References ==		== References ==
	<references/>		<references/>

Admin: Reverted edits by 138.51.124.45 (talk) to last revision by 128.100.8.94

2019-07-11T14:17:00Z

Reverted edits by 138.51.124.45 (talk) to last revision by 128.100.8.94

← Older revision		Revision as of 10:17, 11 July 2019
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	To create the dye for orientation week, a mixture is created consisting of isopropyl (rubbing) alcohol, water, and gentian violet stirred in a large drum. The alcohol acts as a useful solvent to ensure that the dye will dry more quickly, as well as maintaining the solution’s sterility. The amount of water in the dye determines its strength, and therefore how easy or hard it is to remove it. The less water added to the mixture, the longer it will stay on the skin. The dye used for F!rosh Week is usually composed of one gram of dye per 600 litres of water. At this strength, it tends to come off in a day or two with vigorous scrubbing. However, the nails and hair will remain purple longest, as those cells are very slowly replaced.<ref>Michael Au, "The Science Behind Purple Dye", ''The Cannon''. http://cannon.skule.ca/the-science-behind-purple-dye-3/</ref>.		To create the dye for orientation week, a mixture is created consisting of isopropyl (rubbing) alcohol, water, and gentian violet stirred in a large drum. The alcohol acts as a useful solvent to ensure that the dye will dry more quickly, as well as maintaining the solution’s sterility. The amount of water in the dye determines its strength, and therefore how easy or hard it is to remove it. The less water added to the mixture, the longer it will stay on the skin. The dye used for F!rosh Week is usually composed of one gram of dye per 600 litres of water. At this strength, it tends to come off in a day or two with vigorous scrubbing. However, the nails and hair will remain purple longest, as those cells are very slowly replaced.<ref>Michael Au, "The Science Behind Purple Dye", ''The Cannon''. http://cannon.skule.ca/the-science-behind-purple-dye-3/</ref>.
	=== Health Concerns ===		=== Health Concerns ===
	~~There are no~~ health ~~concerns~~, ~~life~~ is ~~great~~		On June 12, 2019, Health Canada warned Canadians of potential cancer risks associated with gentian violet <ref>Health Canada, "Health Canada warns Canadians of potential cancer risk associated with gentian violet". https://healthycanadians.gc.ca/recall-alert-rappel-avis/hc-sc/2019/70179a-eng.php</ref>. Health Canada has completed a safety review of human health products and veterinary drugs containing gentian violet and has found that exposure to these products may increase the risk of cancer. Given the seriousness of this risk, Health Canada is advising Canadians to stop using all human and veterinary drug products containing gentian violet.

			Health Canada's review was triggered by the World Health Organization's Codex Alimentarius Commission's recommendation on the potential risk of cancer associated with veterinary drug residues in foods, including gentian violet. Although the Commission's recommendations were specific to food residues, Health Canada reviewed the safety of human non-prescription drugs, veterinary drugs and medical devices containing gentian violet.

			After completing two safety assessments, the Department concluded that, as with other known cancer causing substances, there is no safe level of these products, and therefore any exposure to these products is a cause for concern.
	== References ==		== References ==
	<references/>		<references/>