Friday, August 21, 2009

Elastic Part 2 - Specification

Elastic part 2 Specification part 1
Let’s look at a specification for Men’s Woven Jacquard elastic used in a high end specialty brand.

1. Description: 1 ¼ Famous Designer Brand Name
2. Color: White Elastic with Purple letters & line
3. Width: 1/1/4” +/- 1/16”
4. Warp Ends: 300 Denier White Polyester 2/70 Denier Purple Nylon
5. Filling Ends: 300 denier polyester
6. Elastomeric Ends: 1120 Denier Spandex covered polyester
7. Picks per Inch: 84 +/-10%
8. Yield in yds/lb: 25 +/-10%
9. Elongation @ 10 lbs: 130% +/- 15%
10. Modulus (10 lbs & 50% elongation) 2.65 lbs +/_ 15%
11. After Wash Shrinkage: -4.00% +/- 8% max
12: Colorfastness: 4
13: Fiber Content: polyester- 77%, nylon -10%, spandex 13%

Please go to earlier posts if you need a refresher for
14. Weaving: go to May 24th posting
15. Cotton Count Nomenclature: May 12th posting
16. QC Testing: March 4th posting

I’ll cover some of the specific testing for Stretch and Recovery in the next posting.

All for now,
The Underwear Maven

Monday, August 17, 2009

Elastic Part 1

Elastic Part 1

Elastic can be a big part of the cost for underwear bottoms. Here are some options to consider:

ITEMS 1-7 first option ususally lower cost
1. Knit OR Woven
2. Printed logo/ design OR Jaquard Logo or design
3. Rubber OR Spandex
4. Exposed rubber or spandex OR Covered Rubber or Spandex
5. Plush Back OR Regular Back
6. Seamed to close diameter OR Seamless
7. Narrow Width OR Wider Width

8. Cotton or Synthetic is a toss up for lower/higher cost
9. Thick or Thin is also a toss up for lower/higher cost

10. And the fibers or yarns can have properties like Wicking, Antimicrobial, etc. which will drive up the cost.

So for most Mass and department store brands, Men’s elastic will cost more than Women’s because Men’s tends to be Wider, Woven Jaguard Logo elastic while women’s is thin knit printed elastic.

All for today,

The Underwear Maven