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Yes or No? Pre Washing Lingerie Fabrics

Yes or No? Pre Washing Lingerie Fabrics

prewash lingerie fabricYes or no – should you prewash lingerie fabric?

In March 2015, this question was asked on a Facebook forum:

“Do you prewash lingerie fabrics? Personally, I don’t, but I’ve read different opinions. What are your thoughts?”

A few comments that were received:

“I do, to be on the safe side. I’d be devastated if after all the hard work put into making a bra and all the expensive bits and pieces used, things went wrong because the fabric shrank or distorted.”

“I don’t pre wash synthetic fabrics. I never had a bad experience. But if I were to use contrasting fabrics together, I would prewash them to prevent bleeding.”

“I prewash every fabric, either by hand or by machine. I don’t always use the dryer.”

“I don’t prewash my lingerie fabrics before I sew my bras. However, I do wash the finished bra before I wear it. I find if I don’t wash it, the sizing can be irritating on my skin.”

At Sew Sassy, their blog/catalog says not to wash it as it will roll and be difficult to work with. I just received my fabric and will wash just the white milliskin as I plan to dye it.”

Nope. One of the few things that does not get pre washed.”

I will started to prewash fabric for test garments. I got a rash while trying on the bra I’m fitting.”

I don’t usually pre-wash, unless it is cotton or bamboo – something I know will shrink.”

“I never felt the need before – especially delicate lace. But I purchased a bra kit that had lace in it. It didn’t specify that it was made of anything shrinky. After making the bra, first wash, cold water, air dry – it shrank up like crazy! Nearly ruined everything.”

“I don’t wash, but did have a ‘bleed’ with black and ivory. That was very disappointing.”

First, it’s important to specify what lingerie fabrics I’m referring to. For the most part, I mean synthetics including, but not limited to, stretch lace, stretch mesh, powernet and other nylon/lycra/spandex/poly blends.

What is prewashing? Prewashing happens before sewing – fabric is washed in the same manner that the finished garment will be washed. Why it is done? To reduce shrinking and crocking (wet and dry) as well to remove starches and other chemicals that were applied during the manufacturing process. So why would a sewer prewash fabrics for garments but not for lingerie? Well, most synthetics don’t shrink. Also, most people don’t wash lingerie as often as as garments, and when they do, they should wash them by hand or by machine on the delicate cycle. I always lay flat to dry.

I don’t wash bra-making fabric, but I would under some circumstances. I would only wash 100% polyester fabrics, such as Duoplex, if I thought I had to remove any sizing. Polyester won’t shrink, so I wouldn’t feel I had to do it for that reason. Sometimes the fabric from a mill is a bit stiff, and I would wash to remove any sizing. I would put the fabric in the washer AND the dryer, so that every bit of the sizing is gone. The dryer won’t hurt polyester, or at least it won’t hurt our Duoplex – that stuff is indestructible!

So, if you’re going to prewash your lingerie fabrics other than polyester, how should you? First, hand or machine wash on a low/gentle cycle. Use a mild or a lingerie detergent such as The Laundress’ Delicate Wash. If the fabric is stretchy, don’t hang to dry it if is a large yardage (more than 1 yard) as it might stretch out weird. Lay flat to dry or dry in the dryer on the coolest air setting.

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