These days, nylon kite sail material is dyed in the factory. Not painted. Hence many bright colors are available straight 'off the shelf'. However, it's still possible to home-dye plain ripstop nylon cloth. Some have even done a tie-dye job on their kite sail! Ah, the 70s...
Dye products from the Dylon company can be used to successfully and permanently change the color of the fabric. The process involves soaking the cloth in a hot but not boiling dye solution. Very thorough rinsing with cold water afterwards is necessary. Otherwise, any dye left on the surface could start to run, if the kite gets wet! OK I guess if all the panels are the same color, but otherwise it could really be a disaster.
When the weather's good and you have the time, it's great to get out with a kite or 3. But what about on bad weather days? Then it's time to pull out...
"Kites Up!" - my downloadable kite-flying board game! Apart from towing indoor kites, doing a spot of imaginary flying is the next best thing :-)
I've had positive feedback from visitors who have re-made some of my MBK plastic-sailed designs in rip-stop. Including a guy who scaled up the MBK Octopus so it was many meters in length. He sent through some in-flight photos as proof!
On the topic of making home-made kites, check out this video with a rather cool soundtrack, featuring a neat little delta. The guy later added a drogue for extra stability - also in ripstop of course.
Here are a couple of photos we took at the Adelaide Kite Festival some years ago, representing the small and
big end of the retail kite spectrum. I'm pretty sure they both employ
ripstop nylon fabric! A small cheap delta in the first image, and a much larger - and pricier - show kite in the other image...
Small cheap kids' delta
Large expensive Trilobyte show kite!
Just to digress for a moment, not all home-made kites are made in rip-stop straight away. A useful approach is to make a kite in plastic first, just to get a feel for it's performance and general flying characteristics.
When the owner is satisfied, perhaps after making more than one kite, they splash out on some colored fabric and make the long-lasting ripstop nylon kite of their dreams :-)
The World Of Ripstop
Typical ripstop nylon kite
By the way, it's not limited to nylon, but let's stick to the topic at hand...
Nylon itself is used in a massive array of everyday items,
so I won't even mention any here. You can probably think of a quite a
few yourself, without doing any research at all!
Even the ripstop variety of nylon cloth has many, many uses in the 21st Century. This is not common knowledge, so I will list a few here....
- Outdoor gear such as tents and weather-proof covers.
- Colorful, light-weight and durable clothing. And accessories such as bags.
- Engine-less aviation sectors such as balloons, hang-gliders, paragliders and parasails.
- KITES! Thank goodness for that. There's a colorful delta we once had, in the photo.
As far as history goes, there's not much to be found online.
Apart from the fact that this material replaced silk as the cloth of choice for military parachutes. That was back during WW2. The 1940s. Being synthetic, it was easy to produce nylon fabric in large volumes and thus production was cheap compared to using silk.
Typical ripstop nylon kite
Ripstop. That's quite descriptive, because larger diameter threads
are woven into the fabric at regular intervals. Typically 5 mm to 8 mm
(1/5" to 1/4"). This results in a pattern of small squares, which are
visible if you look at the material closely. Any small hole or tear
tends to stop at the first larger thread it comes to. The rip stops.
There wouldn't be much left if you took all the ripstop nylon fabric away from a typical kite festival!
In a nutshell, this kite sail material is very light and very durable. Also, it is made with zero porosity which means air and water cannot penetrate it. It's almost like it was made for kites in the first place!
For some other applications, the porosity is not zero. Enough said.
A Word On Weights
The great majority of ripstop nylon kites in shops these days seem to use either 1/2 ounce or 3/4 ounce material. That's the weight per square yard of material. 1.5 ounce is less common, and there is even a smattering of other odd sizes like 0.6 ounce.
Hang on, why 'square yards' in this Metric age? To get more precise about it, in the U.S. they use ounces per "sailmaker's yard" which is 36 by 28.5 inches. The Brits use the standard Imperial yard. Finally, and most sensibly, the rest of Europe uses grams per square meter.
1 ounce American equals 1.26 ounces British and 42.8 grams per square meter. So when you buy a kite, the meaning of the cloth weight figure (if given) depends on the country of manufacture of the ripstop cloth.
We saw a Cody Box kite once at a kite festival, aloft in a very light breeze. Huh? Well, it was covered in 1/2 ounce ripstop nylon apparently, and I'm guessing it had graphite spars as well! Box kites ain't what they used to be.
Perhaps the massive kite-selling activity in the U.S. is the reason this non-metric measure seems to persist when people talk and write about sail weight.
Personally, I've by-passed using rip-stop altogether, since I'm all about showing people how to make their own kites quickly from cheap materials.
I guess if a plastic creation really 'hits the spot' then it can be re-made in ripstop nylon and attached to the frame with nylon repair tape. It would then be a tad heavier but definitely more durable.
As mentioned earlier, there's another alternative to towing indoor kites if it's just not possible to fly outdoors...
"Kites Up!" is my downloadable board game. It's a PDF file which has all the documentation for the game plus images for all the components. Tokens, cards, the board itself and so on. Anyway, just click that link to see more info :-)