Insulating A Pocket?

[CowboyDan]

Is there a particularly good material to use for insulation?

I'm planning to make some diaperbags, and one thing everyone said when I asked about features, was insulated pockets for bottles & sippy-cups.

I think I know how to make the pocket so it's almost waterproof, but I need some insulation and am not sure what to use. I have zero background in regular cloth sewing & such like, so I have no clue what is even out there.

And the search of google and LW didn't really help (although I found a lot of bunnie-trails on LW!!!)

[Dwight]

I'd probably start out with one of those foam pop can holders. Don't forget to insulate above, below and all sides, . . . as any temp change there can cause condensation, . . . which we all know is not good for leather products.

I'd go so far as making a waterproof shield between the product and the inside also as a JIC measure.

May God bless,

Dwight

[Northmount]

Lots of types and thicknesses of foam are available. Probably a good idea to use a closed cell type foam that won't become a sponge to any moisture. Outside of foam, there is quilting batting materials. Again try for a type that won't soak up moisture. Other things ... Like fiberfill, layers of wool ... Depends a lot on your construction methods. Like has been mentioned, make the pocket waterproof so any leaks are contained. You might want to use some vinyl stuff there.

CTG

[Leather Girl]

As bottles and such like to leak I would put snaps and make the liner out of ripstop or material used to make raincoats. Then when it gets yucky, wet , etc., it can be pulled out and washed.

Randi-Lee

[Sylvia]

Is there a particularly good material to use for insulation?

I'm planning to make some diaperbags, and one thing everyone said when I asked about features, was insulated pockets for bottles & sippy-cups.

I think I know how to make the pocket so it's almost waterproof, but I need some insulation and am not sure what to use. I have zero background in regular cloth sewing & such like, so I have no clue what is even out there.

And the search of google and LW didn't really help (although I found a lot of bunnie-trails on LW!!!)

There is a material that is like the insulating blanket NASA used in the space station. It has several thin layers and one of them is like a space blanket. My Sis-in-law used it to make waterbottle carriers. I'll try to remember to get her source for you. Remind me tomorrow.

[CowboyDan]

There is a material that is like the insulating blanket NASA used in the space station. It has several thin layers and one of them is like a space blanket. My Sis-in-law used it to make waterbottle carriers. I'll try to remember to get her source for you. Remind me tomorrow.

Reminder :D

[Sylvia]

Reminder :D

Thanks for the reminder Dan. I've sent the email. Hopefully she will remember. In the meantime I'll try to google it.

Syl

[CowboyDan]

Thanks for the reminder Dan. I've sent the email. Hopefully she will remember. In the meantime I'll try to google it.

Syl

Thanks. That sounds like the ideal stuff.

[Sylvia]

Thanks. That sounds like the ideal stuff.

Here's a video of the stuff. I don't know how she got it... or even which layers it's from.

http://videos.howstuffworks.com/discovery/27712-how-do-they-do-it-spacesuit-insulation-video.htm

[Sylvia]

I think I found it. It's called Insul-bright

http://www.joann.com...ght/xprd986469/

Here's a better price

http://www.amazon.com/Wide-Insul-Bright-Mylar-Batting-The/dp/B001IYFCLE

She would make those water bottle cases out of this and 100 denier nylon. She would put a frozen water bottle in it in the morning and by the time she got home from work 9 hours or so later the bottle was half ice. So I think this should work well for you.

Edited April 15, 2012 by Sylvia

[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