Insulating A Pocket?

[Sylvia]

Well, just got the email back from my sis-in-law. She said the stuff she used was called WARM WINDOWS... she said she used 3 layers of the stuff in her carriers.

Here's a link to the stuff.

http://www.onlinefabricstore.net/drapery-lining-fabric/warm-window-drapery-lining/warm-window-fabric-ivory-54-inch-.htm?gclid=COO5qPL1t68CFQ-ChwodKjABfw

A lot more spendy than the Insul-bright. But now you have a choice.

[CowboyDan]

Well, just got the email back from my sis-in-law. She said the stuff she used was called WARM WINDOWS... she said she used 3 layers of the stuff in her carriers.

Here's a link to the stuff.

http://www.onlinefab...CFQ-ChwodKjABfw

A lot more spendy than the Insul-bright. But now you have a choice.

You're awesome! I don't care what anyone else says.

Now the engineer in me wants to know more about the ambient temperature in the room, humidity level, and water bottle size & construction to determine the heat flux through the carrier. That way I can calculate how much insulation I need to keep sippy-cups and bottles at the correct temperature.

But, I don't think I'll go there. The lazy bone in my body has been getting the better of me today.

[CowboyDan]

Thanks to all the others for their ideas.

I'm planning on using a deer-tanned hide treated with mink oil to form the pocket, with an elastic around the top to keep the bottle/cup from falling out, and also to make it as easy as possible to get it in & out of the bag. I'm going to start with the outside front part at the bottom of the pocket, bring it up to where I want the top of the pocket to be, then fold over and down. take the leather almost as far down as the piece started, then fold back up. This way the only seams will be on the sides.

The insulation (what ever I decide to use) will wrap around the actual pocket in a U-shape, with the bottom of the U being at the bottom of the pocket, and the ends being in the pocket seam.

For the seams, I'm planning on making the edges of the front piece wrap around all the way behind the last layer of insulation. This way I have 4 layers of leather, and 2 layers of insulation to compress and hopefully make it water-tight. I'll probably also use a really short stitch. I may even do an inner stitch with just the two inner layers of the pocket and the insulation, then another stitch outside of that with all 6 layers of material. Or if I feel really ambitious, a stitch on just the inner pocket leather, a stitch just outside of that with the insulation and inner leather, then another one outside that with all 6 layers.

I envision at least 2 of these for each diaperbag, and I have 2 bags to make.

[CowboyDan]

The finished product: http://leatherworker.net/forum/index.php?showtopic=43828