While bleach is fast and affordable, over or improper use can result in yellowed clothes and
weakened fabric fibers.
The Insect Shield process binds a proprietary permethrin formula tightly to
fabric fibers resulting in effective, odorless insect protection that lasts beyond the expected lifetime of apparel.
Do not use fabric softener on your cloth diapers because it coats
the fabric fibers in the diapers, which reduces absorbency of the diapers.
Fabric softeners, over time, create an impenetrable layer atop
the fabric fibers, rendering your baby's cloth diapers incapable of absorbing any moisture.
This also ensures
the fabric fibers are «prepped» and «fluffed» to ensure their absorbency.
That's because household dust is full of lots of other irritating stuff, including pet dander, mold spores, and
fabric fibers.
While vintage shopping in the seventies, I strongly suggest looking at
the fabric fiber content (if available).
It is a relatively harmless ingestive behavior, however it can result in hairballs from
the fabric fibers in extreme cases.