Perma Spun® 
Made from 100% polester staple fibers, Perma Spun® is a high quality spun polyester thread designed to maximize seam quality. An ecomonical solution for producing high quality seams to meet the demands in the world of high fashion.
Performance You Can Count On
100% Polyester Construction

  • Improved seam strength over cotton threads
  • Superior colorfastness
  • Recommended for signature contrast stiching that will not fade during laundering
  • Excellent resistance to micro-organisms, mildew, ultaviolet radiation, and chemicals

Superior strength per size - higher tenacity thatn cotton threads

  • Allows the use of fined sizes to minimize seam puckering due to structural jamming or excessive tension
  • More yards per bobbin - fewer bobbin changes

Unique low friction thread lubricant giving improved stitch and seam appearance

Perma Spun
A Variety of Uses
Used in all types of modern fabrics from microfibers to stretch-wovens, from stretch knit fabrics made with Lycra® or Spandex, Perma Spun® is the right choice for all you apparel needs:
  • Shirts & Blouses
  • Sportswear
  • Children's Apparel
  • Womenswear
  • Dresses
  • Slacks
  • Twill Pants & Shorts
  • Knitwear
  • Tee Shirts
  • Underwear
  • Home Furnishings
The Perma Spun® Difference: A Complete Range of Sizes
Tex
Sizes		 Yarn
Sizes		 Approximate
Strength LBS. (SEB)*		 Minimum Recommended
Needle Size**
21 53/2 1.6 65/9
27 43/2 2.1 75/10
30 53/3 2.6 80/12
40 29/2 3.2 90/14
45 39/3 3.6 100/16
60 29/3 4.9 110/18
70 24/3 6.4 110/18
90 20/3 7.6 140/22
105 16/3 9.7 140/22
120 20/4 10.6 150/23
* SEB - Single End Break (lbs.). All strengths are for comparative purposes and should not be used as minimum requirements.
** Minimum Recommended Needle Sizes. The first number is the Metric Needle Size and the second number is the Singer Needle Size designation.
 
Seam Strength***
Thread Size Seam Strength in LBS.
Needle Thread Looper Thread Perma Spun®
T-21 T-21 26.8
T-27 T-21 33.4
T-40 T-27 52.4
T-60 T-40 81.4
*** Based on an average of six seam breaks per seam. All seams were manufactured using a F.S.T. 401 at 8 s.p.i., and a SSa seam tape.
 
Comparative Strength Data
Thread-Grams/Tex
 5
 10
 15
 20
 25
 30
 35
 40
 45
 50
Wildcat®
Magic®
Perma Spun®
D-Core®
Perma Core®
 
Chemical Resistance
Resistance To: Resistance Grade:
Bleaching Excellent
Alkalis Degradation caused by strong alkalis at boiling temparatures
Acid Resistant to most
UV Excellent to Very Good
 
Colorfastness
Fastness To: Fastness Grade:
Commercial Laundry Excellent
Home Laundry Excellent
Dry Cleaning Very Good
Crocking Excellent
Light Good
Dry Heat Very Good
 
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