The perfect Overdyeing Thread
Chroma is a 100% mercerized cotton thread specially designed for sewing cotton garments,
that are to be post dyed. Garment overdyeing is a process where the thread specially 100%
cotton thread is dyed along with the dyeing of fabric. The threads meant for over dying
processes are Ready for Dyeing Threads or RFD threads. The RFD threads, which are
in bleached semi-white quality, have the property to absorb dyestuff molecules along with
the fabric when the latter is dyed. Chroma is produced from high quality, long staple cotton
specially treated under tension to provide excellent luster and higher strength.
The mercerization process gives the thread a very high affinity to the dyestuffs used
in the garment over dyeing process, making it an ideal choice for sewing 100% cotton garments.
The choice for versatility
V.Natura, a right choice for sewing / matt finish embroidery applications:
||Shorts & Pants
||High Fashion Garments
Performance you can count on
- 1. Chroma is relatively stronger than ordinary cotton thread. The higher strength to fineness ratio gives
advantage of fine seam, high seam strength and smaller needle use, so garment damage is
- 2. Chroma is engineered with a superior finish that offers excellent affinity for vat and reactive
dyeing process employed in post dyeing of garment, making it suitable for ready to dyeing
- 3. The mercerization process offers excellent luster and increased strength and controlled stretch
- 4. Due to its high tenacity and excellent lubrication, it offers trouble free sewing and reduces
thread breakage in the post dyeing/ washing process and post garment alteration are minimal.
Chroma : Complete range of sizes
Physical and Chemical properties
- Effect of Acids :Disintegrated by hot dilute acids or cold concentrated acids. Sensitive
to mineral and organic acids specially if halogenated. Unaffected by weak acids
- Effect of Alkalis :Resistant to alkali. Swelling (mercerization) in caustics giving increase
in luster and tenacity.
- Effect of Heat :Negligible -very resistant to heat degradation. Burns readily, decomposes
at 1600 C. Prolonged exposure to sunlight causes yellowing and strength loss.
- Organic Solvents :Generally unaffected by most organic solvents. Generally unaffected
by Sodium hypochlorite, sodium per borate and peroxide bleaches under controlled
conditions. There is a probability of strength loss if contaminated with iron during bleaching.
- Abrasion Resistance :Abrasion Resistance is comparatively lower than Synthetic threads of
polyester or Nylon
- Tenacity :Higher than ordinary cotton thread , suitable for High Speed Stitching
- Elongation :4 to 6%. Good needle loop formation.
- Shrinkage :Low generally less than 4%
*Vardhman strongly recommend that sample garments are dyed and finished
before proceeding to bulk production as the constituents of fibres is outside of our control