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Gresham's Law



 
 
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  #31  
Old November 17th 19, 07:36 PM posted to rec.bicycles.tech
Tom Kunich[_5_]
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Posts: 1,231
Default Gresham's Law

On Sunday, November 17, 2019 at 10:39:41 AM UTC-8, Jeff Liebermann wrote:
On Sun, 17 Nov 2019 09:49:44 -0800 (PST), Tom Kunich
wrote:

Jeff, the ELASTIC bands in most bicycle clothing are pure latex.
I think that I even see occasional warnings about this since
some people are allergic to it.


Sure, but the latex elastic rubber bands are covered with cloth or
Spandex (urethane) and do not touch the skin. If you really want all
Latex bike shorts, you could make your own:

"Latex Bike Short Tutorial"
https://www.youtube.com/watch?v=aRlQyDnL3M8
http://www.mjtrends.com/articles.php

I haven't seen anyone wearing a shiny rubber B&D costume while bicycle
riding, but it is possible:
"Rubber Cycle Shorts"
https://www.invinciblerubber.com/rubber-cycle-shorts
Yech, not good. The shoelaces might get tangles in the gears.



--
Jeff Liebermann
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558



I have two sets of Pearl Izumi shorts (granted not the most expensive ones) on which the elastic rubber is on the inside waistband. Now indeed the higher end one's have the latex covered.
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  #32  
Old November 18th 19, 02:03 AM posted to rec.bicycles.tech
Tim McNamara
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Posts: 6,945
Default Gresham's Law

On Sun, 17 Nov 2019 11:36:55 -0800 (PST), Tom Kunich
wrote:
On Sunday, November 17, 2019 at 10:39:41 AM UTC-8, Jeff Liebermann
wrote:
On Sun, 17 Nov 2019 09:49:44 -0800 (PST), Tom Kunich
wrote:

Jeff, the ELASTIC bands in most bicycle clothing are pure latex. I
think that I even see occasional warnings about this since some
people are allergic to it.


Sure, but the latex elastic rubber bands are covered with cloth or
Spandex (urethane) and do not touch the skin. If you really want all
Latex bike shorts, you could make your own:

"Latex Bike Short Tutorial"
https://www.youtube.com/watch?v=aRlQyDnL3M8
http://www.mjtrends.com/articles.php

I haven't seen anyone wearing a shiny rubber B&D costume while
bicycle riding, but it is possible: "Rubber Cycle Shorts"
https://www.invinciblerubber.com/rubber-cycle-shorts Yech, not
good. The shoelaces might get tangles in the gears.



-- Jeff Liebermann 150 Felker St #D
http://www.LearnByDestroying.com Santa Cruz CA 95060
http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558



I have two sets of Pearl Izumi shorts (granted not the most expensive
ones) on which the elastic rubber is on the inside waistband. Now
indeed the higher end one's have the latex covered.


I have some short along those lines where the leg grippers are in direct
contact with my skin, but I suspect those are urethane rather than
latex. The prevalence of latex allergy is high enough- and dangerous
enough- that clothing manufacturers are aware and have taken steps to
reduce their liability. Lycra and Spandex were invented as replacements
for latex-based fabrics. You may be likelier to find latex in cotton
clothing.

https://www.hospitalnetwork.com/doc/...allergies-0001

  #33  
Old November 18th 19, 02:18 AM posted to rec.bicycles.tech
Frank Krygowski[_4_]
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Posts: 10,538
Default Gresham's Law

On 11/17/2019 9:03 PM, Tim McNamara wrote:

I have some short along those lines where the leg grippers are in direct
contact with my skin, but I suspect those are urethane rather than
latex.


I was assuming those grippers were some sort of silicone. My guess could
be wrong, of course.

--
- Frank Krygowski
  #34  
Old November 18th 19, 02:22 AM posted to rec.bicycles.tech
Frank Krygowski[_4_]
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Posts: 10,538
Default Gresham's Law

On 11/17/2019 9:03 PM, Tim McNamara wrote:
The prevalence of latex allergy is high enough- and dangerous
enough- that clothing manufacturers are aware and have taken steps to
reduce their liability. Lycra and Spandex were invented as replacements
for latex-based fabrics. You may be likelier to find latex in cotton
clothing.

https://www.hospitalnetwork.com/doc/...allergies-0001


People worry about all sorts of chemicals and synthetics, but "natural"
stuff is no better. See
http://www.wood-database.com/wood-ar...-and-toxicity/

I'm never using toothpicks again!


--
- Frank Krygowski
  #35  
Old November 18th 19, 02:39 AM posted to rec.bicycles.tech
news18
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Posts: 1,131
Default Gresham's Law

On Sun, 17 Nov 2019 21:22:45 -0500, Frank Krygowski wrote:

On 11/17/2019 9:03 PM, Tim McNamara wrote:
The prevalence of latex allergy is high enough- and dangerous enough-
that clothing manufacturers are aware and have taken steps to reduce
their liability. Lycra and Spandex were invented as replacements for
latex-based fabrics. You may be likelier to find latex in cotton
clothing.

https://www.hospitalnetwork.com/doc/...n-spandex-and-

allergies-0001

People worry about all sorts of chemicals and synthetics, but "natural"
stuff is no better. See
http://www.wood-database.com/wood-ar...-and-toxicity/


All these people who didn't learn their lesson from the history of snuff
use.


I'm never using toothpicks again!


You'll deprive your inner termite.

  #36  
Old November 18th 19, 03:53 AM posted to rec.bicycles.tech
jOHN b.
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Posts: 2,421
Default Gresham's Law

On Sun, 17 Nov 2019 21:22:45 -0500, Frank Krygowski
wrote:

On 11/17/2019 9:03 PM, Tim McNamara wrote:
The prevalence of latex allergy is high enough- and dangerous
enough- that clothing manufacturers are aware and have taken steps to
reduce their liability. Lycra and Spandex were invented as replacements
for latex-based fabrics. You may be likelier to find latex in cotton
clothing.

https://www.hospitalnetwork.com/doc/...allergies-0001


People worry about all sorts of chemicals and synthetics, but "natural"
stuff is no better. See
http://www.wood-database.com/wood-ar...-and-toxicity/

I'm never using toothpicks again!


I think, if one looks hard enough, it is probably possible to find
someone that is allegoric to just about everything. There are, for
example, people that are allegoric to money, both paper and metal.
https://firstaidcprottawa.ca/allergi...tion-to-money/

Along with the toothpicks will you be refusing the "green back dollar"
also :-?
https://www.youtube.com/watch?v=m2P8mDlXKHc

(But I notice that the referenced site is Canadian so perhaps U.S.
money is O.K. :-)
--
cheers,

John B.

  #37  
Old November 18th 19, 03:54 AM posted to rec.bicycles.tech
JBeattie
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Posts: 5,870
Default Gresham's Law

On Sunday, November 17, 2019 at 6:18:16 PM UTC-8, Frank Krygowski wrote:
On 11/17/2019 9:03 PM, Tim McNamara wrote:

I have some short along those lines where the leg grippers are in direct
contact with my skin, but I suspect those are urethane rather than
latex.


I was assuming those grippers were some sort of silicone. My guess could
be wrong, of course.


Good guess -- silicone and Lycra/Elastane appear to be the most popular materials for leg grippers. I don't know what they use in waste bands because I haven't had a pair of non-bibs since the late '80s or early '90s.

Anyone who thinks he or she has a latex allergy can do a simple patch test, and if positive, shop for shorts with synthetic rubber waistbands or leg grippers. I could sell them my last pair of wool shorts with a cotton drawstring, assuming they don't have a cotton allergy -- or a wool allergy or a sheepskin/lanolin allergy.

-- Jay Beattie.







  #38  
Old November 18th 19, 04:35 AM posted to rec.bicycles.tech
jOHN b.
external usenet poster
 
Posts: 2,421
Default Gresham's Law

On Sun, 17 Nov 2019 19:54:32 -0800 (PST), jbeattie
wrote:

On Sunday, November 17, 2019 at 6:18:16 PM UTC-8, Frank Krygowski wrote:
On 11/17/2019 9:03 PM, Tim McNamara wrote:

I have some short along those lines where the leg grippers are in direct
contact with my skin, but I suspect those are urethane rather than
latex.


I was assuming those grippers were some sort of silicone. My guess could
be wrong, of course.


Good guess -- silicone and Lycra/Elastane appear to be the most popular materials for leg grippers. I don't know what they use in waste bands because I haven't had a pair of non-bibs since the late '80s or early '90s.

Anyone who thinks he or she has a latex allergy can do a simple patch test, and if positive, shop for shorts with synthetic rubber waistbands or leg grippers. I could sell them my last pair of wool shorts with a cotton drawstring, assuming they don't have a cotton allergy -- or a wool allergy or a sheepskin/lanolin allergy.

-- Jay Beattie.


Latex allergy is not exactly common. The statistics I see say that
something less then 1% of the U.S. population is allergic to latex.
--
cheers,

John B.

  #39  
Old November 18th 19, 05:14 AM posted to rec.bicycles.tech
Jeff Liebermann
external usenet poster
 
Posts: 4,018
Default Gresham's Law

On Mon, 18 Nov 2019 11:35:57 +0700, John B.
wrote:

Latex allergy is not exactly common. The statistics I see say that
something less then 1% of the U.S. population is allergic to latex.


"Current prevalence rate of latex allergy: Why it remains a problem?"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5356959/

Reported data suggest that the average prevalence of latex
allergy worldwide remains 9.7%, 7.2%, and 4.3% among
healthcare workers, susceptible patients, and general
population, respectively.

It's much higher among healthcare workers:

Data published in the early 21st century have shown
that approximately 10%-17% healthcare workers...

Based on these data, the current prevalence of latex
allergy and sensitization among healthcare workers
worldwide are 9.7% and 12.4%, respectively.


--
Jeff Liebermann
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
  #40  
Old November 18th 19, 05:25 AM posted to rec.bicycles.tech
Ralph Barone[_4_]
external usenet poster
 
Posts: 853
Default Gresham's Law

John B. wrote:
On Sun, 17 Nov 2019 21:22:45 -0500, Frank Krygowski
wrote:

On 11/17/2019 9:03 PM, Tim McNamara wrote:
The prevalence of latex allergy is high enough- and dangerous
enough- that clothing manufacturers are aware and have taken steps to
reduce their liability. Lycra and Spandex were invented as replacements
for latex-based fabrics. You may be likelier to find latex in cotton
clothing.

https://www.hospitalnetwork.com/doc/...allergies-0001


People worry about all sorts of chemicals and synthetics, but "natural"
stuff is no better. See
http://www.wood-database.com/wood-ar...-and-toxicity/

I'm never using toothpicks again!


I think, if one looks hard enough, it is probably possible to find
someone that is allegoric to just about everything. There are, for
example, people that are allegoric to money, both paper and metal.
https://firstaidcprottawa.ca/allergi...tion-to-money/

Along with the toothpicks will you be refusing the "green back dollar"
also :-?
https://www.youtube.com/watch?v=m2P8mDlXKHc

(But I notice that the referenced site is Canadian so perhaps U.S.
money is O.K. :-)


Currently, 1.33 times more allergenic...

--
cheers,

John B.





 




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