POLISILK has produced Polypropylene (PP) Yarns since 1972 and has broad experience manufacturing most types of yarn.
STANDARD YARNS | DENIER | DECITEX | FILAMENTS | TORSION "Z" | | 420 | 460 | 60 | 80 | | 500 | 550 | 60 | 80 | | 840 | 925 | 90/120 | 80 | | 1000 | 1100 | 90/120 | 80 | | 2000 | 2200 | 180/240 | 50 |
Also in our range of products:
Up to 6000 Den. High Tenacity yarns
Flame Retardant yarns
Antibacterial Yarn
"S" torsion
TABLE OF FASTNESS
Fastness of colours used in 2.5% concentration | | YELLOW | ORANGE | REDDISH/GREY | | BLUE | GREEN | | Fastness to light
| 6-7 | 6 | 8 | 6-7 | 8 | 8 | 8 | | Washing (Test ISO3) | 4-5 | 5 | 5 | 4-5 | 5 | 4-5 | 5 | Bledding on PP
| 5 | 5 | 5 | 5 | 5 | 5 | 5 | Bledding in Viscose
| 5 | 5 | 5 | 5 | 5 | 5 | 5 | Alkaline Perspiration
| 5 | 5 | 5 | 5 | 5 | 5 | 5 | | Dry Cleaning | 5 | 5 | 5 | 5 | 5 | 5 | 5 | Moisture treatment
| 5 | 5 | 5 | 5 | 5 | 5 | 5 | Dry Treatment
| 4-5 | 4-5 | 4-5 | 5 | 5 | 5 | 5 | Sea Water
| 5 | 5 | 5 | 5 | 5 | 5 | 5 | Swimming Pool Water
| 5 | 5 | 5 | 4-5 | 5 | 5 | 5 |
REMARKS
-For light fastness, index-numbers go from 1 to 8 in blue shades with Xenotex 1.200
-All other index numbers go from 1 to 5
-Dry cleaning must be undertaken with Perchlor-ethylene
-Swimmung pool water includes 20mg/L of active chlorine
-Test-washing ISO-3 is equivalent to washing at 60ºC with 5 glb of soap and 2 glb of soda carbonate for 30 minutes.
RESISTANCE TO SUNLIGHT
All POLISILK yarn is UV stabilized and therefore protected against oxidation and ultraviolet rays in sunlight. Only the best additives available in the market are used and regular trials are performed with the Suntest ultraviolet accelerator equipped with Xenon light.
The measuring unit for solar energy is 1 Langley which corresponds to:
 According to Landsberg, solar energy varies from a minimum of 60 kilo-Langley/cm2 in the Polar regions to 100-120 Kly/cm2 in the temperate regions, and to a maximum of 200 Kly/cm2 in the African dessert. POLISILK yarn is protected so that after 1 year if exposure at 120 Klycm it maintains 70% of initial mechanical properties . Our laboratory is equipped with ultraviolet acceleration equipment SUNTEX (Xenon light)  Nº1 Polyester- Loses 15% in 1 year exposure Nº2 POLISILK PP, specially treated- Loses 18% 1 year exposure
Nº3 POLISILK PP, normally treated- Loses 28% in 1 year exposure Nº4 Polyamide 6.6- Loses 30% in 1 year exposure Nº5 Untreated Polypropylene r- Loses 75% in 1 year exposure.
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