White T-Shirt gremlin

My wife wants to throw all my white racing shirts away because around the neck they appear yellow and she can't remove it. The shirts are clean, it's just that darn yellow in and around the neck. FTR, I am a clean person and do wash frequently. One person said it may be the Clorox or bleach. I don't want to get rid of the shirts or the cars...ha ha. Thanks in advance.
JMC
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Lay out the shirts on a waterproof surface with all the collars lined up. In a 4 cup glass container boil a cup of water in the microwave. Place the container in a spill proof tray and add a tablespoon of OxiClean (or equivalent product) and stir until dissolved. The reaction will quickly foam. Pour the hot solution on the collars and launder. For this wash use a non-chlorine powder bleach such as Snowy, Biz, Chlorox II, or Purex.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.