Firming Up Fabrics with Gelatine
The idea of temporarily stabilizing a soft and drapey fabric is nothing new – there's starch, there's stitching on tissue paper, there are all kinds of dissolvable and tear-away products, there's sugar water (you can imagine how stiff something coated with that would feel!) But one technique that works awfully well uses old-fashioned gelatine – the kind we used to dissolve in water and drink in the hopes of strengthening our fingernails. Well, who knows if that ever worked, but it does do wonders with silk chiffon and silk charmeuse. They're nicely firmed up while you're working with them, then the gelatine is rinsed out and the fabrics return to their original demeanor.
I've seen the same technique used at Legeron (who produce silk flowers for the couture houses) in Paris. Large sheets of China silk are soaked in big buckets of gelatine and water, stretched out on big frames (the fabric is held in place by nails), left to dry, then stacked in layers (by this point, it's like working with thin sheets of paper). Metal dies are used to cut flower petals, which are then hand-dyed.
I teach in Houston every year, and one of my students, Ronnie Braden, mentioned an article she'd read online about using gelatine to treat silk chiffon and charmeuse, to make them easier to work with. You do your cutting and sewing, then you rinse out the gelatine. Ronnie happens to be a chemist (she has her doctorate in synthetic organic chemistry), so it didn't take much convincing for her to experiment.
The silk charmeuse and silk chiffon we plan to treat, along with the gelatine.

A solution is made – 1 teaspoon of gelatin (not a whole packet) is introduced into 16 ounces of tap water; let it sit for 30 minutes. Heat a quart of water to boiling, and add the gelatine mix to the quart of hot water.
Here's the fabric soaking. We left it in for an hour.

The water's now poured out.
And the fabrics are placed on a towel...rolled up, and gently squeezed.



The fabrics are then air-dried (that didn't take long in last summer's heat in Houston!)
I couldn't help thinking how easy it would be to cut and apply bias binding in the chiffon. Here is it, un-treated and treated.

And the silk charmeuse, un-treated and treated.

The gelatine is then rinsed out in soapy water.

The silk charmeuse and silk chiffon, post-treatment, back to their original softness, not showing any signs at all of their gelatine bath.

My thanks to Lena Merrin, the Australian blogger whose website, thesewingspace.com, inspired our efforts. Also thanks to Ronnie, the scientist, and to Cathy Spain for the photos.
Posted on Oct 23rd, 2012 in sewing, how-to, tips & tricks, fabric, gelatine



























Comments (38)
Posted: 5:14 pm on March 16th
Posted: 12:29 pm on January 22nd
you could use fusible web (interfacing). iron it to the fabric then cut out your flowers. they won't fray since attached to interfacing, and it will stay through washing.
Posted: 8:52 am on November 17th
I am thinking of using a dye cutter to make silk flower cut outs to attach appliqué to my work. It would be amazing to find something to slow down the fraying. but it would need to stand up to washing. Any ideas?
Posted: 2:12 pm on November 11th
I want to pleat some silk chiffon with a Perfect Pleater, and thought maybe that would help hold the pleats.
Posted: 5:39 pm on November 5th
Posted: 8:26 pm on November 2nd
1) In connection with an earlier comment, it seems to me you could make it stiffer by using a more concentrated gelatin solution.
2) As mentioned previously, metric measurements would certainly help a LOT for those of us not in the U.S.
Thanks! :)
Posted: 6:29 am on November 2nd
Posted: 8:22 pm on October 29th
Posted: 8:22 pm on October 29th
Posted: 7:13 pm on October 27th
It's genius really! :)
Posted: 11:08 pm on October 26th
Posted: 12:16 am on October 26th
Posted: 5:47 am on October 25th
Posted: 1:01 am on October 25th
Now, as for stretch velvet, I have no idea....I'd be more afraid of what the water would do to it than what the gelatine would do to it!
I do recall once, though, at another class (this time at The Sewing Workshop in SF), when a student was having trouble with a really slippery velvet, and Karine Langan (owner of TSW) grabbed some sort of spray adhesive - I totally forget the name, and boy, it worked like a charm. It seemed a little drastic at the time, but boy, it did the trick!
Posted: 4:04 pm on October 24th
What a great tip to try out. I enjoy working with silk charmeuse ( underwear for my teenage daughter) and georgette for lovely flimsy summer tops. However, always use the tissue paper method. Really love the idea of this and can obviously see that it works.
Totally agree that applying bias binding to the fabric treated this way, would be, well, a breeze.
Thank you yet again for giving us such a huge helping hand.
Regards,
Marysia.
PS. Would so love it if you would actually do some more courses for Craftsy.com I am missing you!!
Posted: 2:46 pm on October 24th
Threads is the most important magazine I subscribe to. A very good teaching tool. I was talking to a clothing conservator at a university costume museum about techniques she used. She asked if I subscribed to Threads, referring to a technique she used. I was proud to say "Yes."
Posted: 12:33 pm on October 24th
Posted: 10:29 am on October 24th
Posted: 10:15 am on October 24th
And I totally agree, lots of pins is the way to go, as is lots of hand-basting, but - and I'm the last one for tricks or gimmicks - this does firm things up a bit. Will it make the fabric super stiff? No, but it will make it a little easier to work with - and as I mentioned in the post, I kept thinking how much more stable the chiffon, especially, would be, when cutting and applying a bias binding. I've often put an inner layer of silk organza into chiffon bias binding, just to firm things up and make the whole process more stable, but this would eliminate that step. And of course, factor into the whole situation the various hands of silk chiffon - sometimes it's super slick (the iridescent ones in particular); sometimes it's grainier (the georgettes) - but it's just nice to have one more tool when it comes to controlling a slippery fabric.
Posted: 10:13 am on October 24th
Posted: 10:04 am on October 24th
BTW: the tip about using gelatine is terrific. Thanks, so much, for sharing it with the rest of us. I cannot wait to try it the next time I'm working with such soft, slippery fabrics.
Posted: 8:42 am on October 24th
Should the first quart be hot tap water, just regular tap water, what?
Thanks for the tip and for the clarification. This tip would've saved me a lot of time, frustration and grey hairs last year when sewing a special occasion dress for my daughter.
Posted: 6:00 am on October 24th
"Metal dies are used to cut flower petals, which are then hand-dyed". What is meant by metal dies are used to cut flower petals. I do not understand this. Maybe somebody can help me out.
Posted: 1:31 am on October 24th
Posted: 12:49 am on October 24th
Posted: 8:49 pm on October 23rd
Posted: 8:11 pm on October 23rd
Posted: 7:02 pm on October 23rd
Posted: 7:01 pm on October 23rd
Posted: 6:47 pm on October 23rd
Posted: 6:44 pm on October 23rd
This may be a great technique, but I have found that the most slippery fabrics can be tamed by hand basting. It takes a little longer, but I can't imagine finishing something and then rinsing it out! Call me crazy but I enjoy the feeling and manipulation of fabric. I find that hand basting seams etc solves so many problems and leaves your hands free to massage any tricky areas during sewing.
Just saying.....................
Posted: 6:27 pm on October 23rd
Posted: 5:26 pm on October 23rd
Posted: 5:24 pm on October 23rd
Posted: 5:23 pm on October 23rd
Posted: 5:03 pm on October 23rd
Posted: 4:48 pm on October 23rd
Posted: 4:36 pm on October 23rd
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