Could someone with some fabric knowlege explain 30 denier versus 70 denier ect and how it relates to 1.0, 1.1 ect ripstop, DWR finish ect.
Deniar denotes the size of the threads woven into the fabric. There is no direct coonection between deneir and weight/sqyd. However, for all general puposes 30D is 1.1 oz/sqyd. 70D is 1.9 oz per sqyd. The weave density and fiber content can throw those off exact numbers. Be adivsed those are before any coating or treatment is applied.
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I read somewhere that the denier # is the weight measurement of a single thread of the fabric.
The lower the number the lighter. 30 d is about the same as 1.1 oz material.
The DRW finish is also referred to as downproof. It is heated on one side but nothing is applied to seal it, so it is breathable.
Denier is a way to measure the linear mass density of fibers and is defined as the mass in grams per 9000 meters.
DWR stands for durable water repellent...a finish or coating applied to provide some level of water resistance to fabric.
DWR (Durable Water Repellent) is a coating and has nothing to do with being "down proof".
Calendering is a finishing process involving passing the fabric between heated high pressure rollers. While most (all???) down proof nylons are calendered, not all calendered nylons are down proof.
Denier is..................easier to read about yourself.
Ramblinrev is correct in the relationship between denier vs weight/sqyd for the nylons we typically use.