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What is Detergent Residue?
Detergent residue is a film left on
fabric by detergent. Detergent residue builds up on all
items that are laundered - clothes, bedding, etc. But
usually you will notice it only when dealing with a fabric
that is supposed to be either waterproof or absorbent.
Bummis has been making diaper covers for almost 20 years
now, but the problem of detergent residue is a new one.
Over the past year, it seems that more and more detergent
manufacturers are adding extra ingredients to their formulas
in order to differentiate their products and brands. This
has led to a surge in the number of calls we receive from
those who use our products, about wicking and leaking that
ultimately end up being the result of detergent residue.
This is a widespread issue throughout the cloth diapering
industry.
So how do you pick a detergent? If you
are lucky enough to have packaging that lists the
ingredients - the shorter the list, the less chance that the
detergent contains problematic additives. Price is not an
issue, as some cheap detergents work better than their more
expensive counterparts. The focus is to find a detergent
that does not leave a residue. We recommend detergents that
have been shown to leave no residue including Charlie’s
Soap, Sensi-clean and Countrysave. These detergents contain
virtually no additives and will not leave a residue even
when you use the amount they recommend or more!
Knowing which detergents are not
good is a bigger problem. Manufacturers are changing their
formulas all the time. Differences in water quality and
washing machines can affect the performance of diaper covers
and make it difficult to isolate the culprit. For example,
some additive ridden detergents will prove problematic for
one family, but seem to pose no issues for the next. The
amount of detergent used may be different, as may the ratio
of detergent to water; they may have used more water, softer
water, or harder water – you get the idea! There are so many
factors that can influence whether a detergent leaves
residue or not and to what degree. Cautionary words that
can warn you of additives include “brighter”,and “whiter”.
But if you choose a detergent with no residue, you know you
are safe! Check out these two sites for more information
about residue studies:
www.charliesoap.com/research_5.htm or
http://countrysave.com/announce.php
What additives should I look out for?
Because there are so many additives (both
natural and synthetic) that can cause problems with fabrics,
it is impossible to list them all here. However, here are
some to look out for:
- Fabric softeners.
These are relatively easy to avoid as added fabric
softeners are normally clearly marked on packaging.
These will cause wicking and repelling on most
waterproof fabrics- actually on all fabrics, including
cotton diapers!
- Brighteners.
Sometimes the only indications that these have been
added are words like “brighter, “whiter,” or “cleaner”.
These are normally optical brighteners. Optical
brighteners, also called optical bleaches or fluorescent
whitening agents, are fluorescent white dyes (sometimes
referred to as crystals) that absorb ultraviolet light
and emit back visible blue light. This gives the
impression that clothes are brighter and cleaner. In
actual fact these can cause leaking and wicking as well
as skin irritations. MANY detergents contain this nasty
additive, which has also been identified as being toxic
to fish and other aquatic life. Some are also capable of
causing mutations in bacteria. They are also very slow
to biodegrade into their less harmful component parts
and can cause eye and skin reactions in humans. Research
is being conducted to determine the extent of optical
brighteners in the environment and their subsequent
damage to animal health.
- Stain Guards.
Again these are usually (but not always) easy to find,
as companies often list them as an advantage. Mentions
of stain “repelling”, “protection” or “guards” are clear
warnings that this additive is present. They too will
coat fibers.
- “Natural”Additives.
Natural additives are most likely in the form of oils.
Like chemical additives, they do not always cause a
problem- but with time, the oils can build up, leading
to wicking, leaking and repelling. Examples include
orange oil, citrus extract, grapeseed extract and other
oils.
- “Natural” Soaps.
In actuality all soaps are natural, which is what sets
them apart from detergents. The problem with soap is
that the minerals in water react with those in soap,
creating an insoluble film. This film can leave a
residue and turn clothes grayish. Dr. Bronners is an
example of a natural soap that can cause a residue
problem.
What problems can a detergent residue
cause?
The list is long and includes the
following:
- Wicking and leaking
- Repelling – beading of liquid
- Stinky diapers or covers
- Skin rashes
- Yellowing of white fabrics
This can happen quickly if the diapering
products are washed with high ratio of detergent to water
right from the start... even within a couple of weeks you
can see a problem. More commonly, it will take a couple of
months before you experience any problems
WICKING & LEAKING: Wicking is the
spreading of fluid across a fabric. How does that residue
cause waterproofing to wick?
There are two ways that residue can cause
wicking.
- One way is that the detergents leave
a film on the cover which works as a transport for the
liquid to travel along the inside of the cover, along to
the edges then across the front. It appears like the
fluid went right through the cover but it actually went
around!
- The second way is that a cover with
a laminate works by not allowing a “whole” water
molecule to pass through the membrane and one possible
way this is done is through water tension. The water
molecules bind to each other and do not penetrate
fabric. Detergents have wetting agents that break water
tension, which allows the detergent to dissolve and
disperse and allows clothes to get cleaner. When residue
from detergent is left on the covers, the fluid loses
its water tension and can saturate the fabric. This
appears as a general wetness of the cover, not a
specific leak like at the thighs or tummy.
Unfortunately, most people will assume their covers are
worn out or defective before realizing that they have a
detergent residue problem – a problem that can usually
be remedied!
REPELLING: This is an issue for
diapers. If diaper fabric fibers get coated in detergent
residue they will begin repelling the urine like a duck’s
plumage repels water. Residue is not the only culprit here,
but it is a common one that can be remedied.
STINKY DIAPERS: There are numerous
causes of stinky diapers or covers, detergent residue being
among them. This is because the residue will trap or “bind”
the odor to the fabric. With our diaper covers, detergent
residue is the number one reason that the product may smell.
Luckily, residue can be removed- in a process you
might hear referred to as “stripping.”
RASHES: As can be expected, if
your diapers are covered with a chemical residue, they can
be expected to cause skin irritation in babies with
sensitive skin.
YELLOWING OR GRAYING OF WHITES:
Notice your whites aren’t very white any more? The most
common cause is detergent residue...
So what do I use... or not use?
We recommend using detergents that are
additive free and leave zero residue and can be used at the
recommended amount. These include
- Charlie’s Soap (www.charliesoap.com).
This is not actually soap but a detergent. The liquid
leaves zero residue and is cost effective. The powder
has not been tested.
- Sensi-Clean (www.atsko.com).
Also sold as Sports Wash.
- Country Save - tested in powder form
(www.countrysave.com)
- Detergents made up of mainly sodium
carbonate or soda ash.
- In Canada, use
Claudia's Choices without optical brighteners.
Many regular detergents when used in
moderation will cause no problems for the majority of people
who use them and the products they wash with them. The key
is to use less detergent (at most ˝ the recommended amount)
and more water. Usually the really inexpensive detergents
do not add so many additives because they increase the cost
of the detergent. Thus they are less likely to leave a
residue. Examples would be Sun, Clout, Windfresh and most
generic no-name basic detergents.
Detergents that have shown up often in
our troubleshooting efforts as possibly causing residues
are:
- All “Free and Clear”. The free and
clear actually refers to dust mites - and as such the
detergent has a ton of additives to rid the fabric of
allergens.
- Some versions of Bio-Kleen.
- 7th Generation
- Dreft and other “baby” detergents,
including Ivory Snow.
- Dr. Bronner’s and other soaps with
certain natural additives.
Help! I have detergent residue on my
diaper covers! What do I do now?
The good news is that products that have
been damaged by detergent residue can usually be saved! If
the residue is not too extensive, it can often be resolved
by doing a couple hot water rinses with no detergent, then
throwing the covers in the dryer.
If this does not resolve the issue, a
more intense “stripping” may be necessary. Repeat the
following process twice:
- Run your covers and diapers through
a wash with only hot water (if allowed by manufacturer’s
washing instructions).
- Run a second wash using 1/2 cup
baking soda and 1/2 cup vinegar in this second wash.
- 1/2 cup vinegar again in first rinse
cycle.
- Run a second rinse cycle with plain
hot water.
- Dry covers in dryer.
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