Ripstop Nylon vs. Cordura
penny s
"Chris Keath" <un...@hotmail.com> wrote in message
news:3t522u0ku63m287n1...@4ax.com...
> I was looking at 2 bags I wanted to get. The fit was good on both of
> them. One was all ripstop nylon (lighter too) and the
> other was a mix of ripstop nylon with a mix of cordura.
>
> Is the cordura alot more resistent to tear, wear, etc than
> the ripstop nylon or advances in fabric have made the nylon
> very comparable.
You are looking at two different types and weights of nylon. Ripstop is a
WEAVE but generally is seen as a very light nylon , used typically where
weight is an issue: sleeping bags etc. Cordura (tm) is a very strong
abrasion resistant nylon fiber that is used where strength and abrasion
resistance is important. Cordura comes in different weights (deniers)
depending on end use, 300 d. being a light Cordura, 1000 being very beefy
and heavy. You will see Cordura used for pack bags, wear patches and things
like that. There are various weights of rips stop *weave* Cordura, too..
For a pack, I'd stay away from ripstop nylon only, and go with a ripstop
weave Cordura. The problems I have seen with the really light ripstops for
packs is that the fabric is so light that many times it can't take the
stress of the bar tacks that are used on stress points, and that can be the
first failure point on a pack bag.
I hope I got your drift.
Penny S
--
Specialty Outdoors
Modification & Repair of Outdoor Gear & Clothing
Factory Authorized by The North Face
www.specialtyoutdoors.com/whatis.htm
David Geesaman
news:u228ed4...@corp.supernews.com:
Penny is on the money (ow, pun). Ripstop used in gear is much lighter
than cordura, and therefore is good to keep the weight down. I would have
no worries about Arcteryx not reinforcing their stress points, those bags
are well-tested and designed. When you're using it, just don't lash on
anything that pulls hard in a manner that it wasn't designed for.
If you just want a general pack and saving 6oz isn't critical, just go
with the Cordura one.
Dave
penny s
"David Geesaman" <geesama...@newsguy.com> wrote in message >
> Penny is on the money (ow, pun). Ripstop used in gear is much lighter
> than cordura, and therefore is good to keep the weight down. I would have
> no worries about Arcteryx not reinforcing their stress points, those bags
> are well-tested and designed. When you're using it, just don't lash on
> anything that pulls hard in a manner that it wasn't designed for.
> If you just want a general pack and saving 6oz isn't critical, just go
> with the Cordura one.
>
> Dave
The main issue with the lighter fabrics is that the reinforced stress
points, can be so heavily reinforced that, for example, a dense bartack
will start to cut the thread of the fabric that it's supposed to be
reinforcing. I've seen this on several lines of packs - people bring them in
for repair, I tell them to send it back for warranty replacement.
Penny
penny s
> Thanks for the feedback. I was really leaning on the *all ripstop*.
> It's an Arcteryx Bora 65. They used to make their packs with ripstop
> and cordura on the bags 2 years ago ( I have a larger Bora) but
> I guess they changed designs.
>
> The bag is a mix of ripstop 420D (mostly of the side access panels)
> with 630D packcloth overall. Are you familiar with this mix of
> materials Penny.
>
http://www.specialtyoutdoors.com/packs.htm
Is that the one, upper right corner? The ripstop lighter Cordura seems a
bit heavier than the stuff in another brand that I saw bartack failures in.
Penny
David Geesaman
> The main issue with the lighter fabrics is that the reinforced stress
> points, can be so heavily reinforced that, for example, a dense
> bartack will start to cut the thread of the fabric that it's supposed
> to be reinforcing. I've seen this on several lines of packs - people
> bring them in for repair, I tell them to send it back for warranty
> replacement.
>
>
> Penny
That's disconcerting. I haven't seen too many lightweight packs up
close, and I would have hoped they knew how to laminate a doubler layer or
something before bartacking. Bartacks are awfully harsh little things, you
know, can't be trusted to do the job all by themselves....
Dave