Fiber Guide · B2B Sourcing · Data-Driven
Viscose (Rayon) Yarn for
T-Shirt Manufacturing.
Viscose sits at a commercially awkward intersection in the t-shirt category: it performs like a premium fibre at a mid-market yarn price, but comes with manufacturing complexity and shrinkage variability that punishes buyers who treat it like cotton.
Overall rating: 6.3/10 across 8 dimensions.
Get Sourcing Advice →Free consultation · Data-driven recommendations
At a Glance
The fibre profile, summarised.
8 dimensions rated on a ten-point scale for Viscose (Rayon) in T-Shirt Manufacturing. No weighting, no competitor framing, just a direct performance read.
Dimension
Score
Reading
Softness / Hand Feel
Strong
Viscose's regenerated cellulosic structure produces a fibre fineness of 1.2–1.7 dtex, giving Ne 30s yarn a handle comparable to combed cotton Ne 40s. The silk-like surface sheen and smooth drape create a premium sensory impression that punches above the fibre's cost point. The limitation: hand feel degrades faster than cotton without bio-polishing, as surface fibre ends fray after repeated washing.
Durability / Abrasion Resistance
Adequate
Standard viscose single jersey (Ne 30s, 160 GSM) achieves 4,000–6,000 Martindale cycles — below cotton (8,000–12,000) and significantly below polyester. For t-shirts worn as outerwear with bag/backpack friction or heavy outdoor use, viscose alone is under-specified. Blending with polyester (CVC 60/40 or 70/30 viscose/polyester) pushes abrasion resistance to 8,000–10,000 cycles with manageable trade-offs on drape.
Colour Retention / Colorfastness
Strong
Viscose's cellulosic structure bonds with reactive dyes in the same way as cotton, achieving ISO 105-C06 wash fastness of 4–5 with correct dye selection and fixation. The advantage over cotton: viscose's smoother, more uniform fibre surface produces higher apparent colour depth — the same dye concentration reads 10–15% more saturated on viscose than on ring-spun cotton. For brands running deep-shade t-shirt programmes (black, navy, burgundy), this is a genuine benefit.
Breathability / Moisture Management
Strong
Viscose moisture regain is 11–13%, similar to lyocell and higher than cotton's 8.5%. Like lyocell, it manages moisture through absorption-diffusion rather than wicking, which means it performs well for everyday casual wear and poorly for high-perspiration athletic contexts. A 160 GSM viscose jersey at MVTR 900–1,100 g/m²/24h is genuinely comfortable in 20–32°C ambient temperatures.
Stretch & Recovery
Below average
Viscose has lower elastic recovery than cotton — a 20% width extension on single jersey recovers to within 6–9% of original dimension (versus cotton's 3–5%). This is the primary dimensional stability challenge for viscose t-shirts: armhole and shoulder seam distortion after washing, and seat/hem bagging after repeated wear. A 5% spandex addition changes this rating to 7/10 and is recommended for any fitted t-shirt silhouette.
Cost Efficiency
Strong
At ₹220–280/kg for standard viscose Ne 30s (Indian/Indonesian origin), viscose is the most cost-effective way to achieve a premium drape and colour-depth profile. It sits at 15–20% lower cost than ring-spun combed cotton Ne 30s at equivalent counts, with a significantly more luxurious finished-garment perception. The cost efficiency rating accounts for the higher manufacturing care required — which adds ₹15–25/garment in processing cost relative to cotton.
Sustainability / Eco Credentials
Below average
Standard viscose (non-ECOVERO, non-lyocell) uses an open-loop manufacturing process that recovers only 50–70% of solvents and generates carbon disulfide and hydrogen sulfide as process byproducts. Water consumption is lower than cotton but the chemical intensity is the environmental liability. This is the fibre's most significant weakness for ESG-oriented brands; switching to ECOVERO (Lenzing's sustainable viscose variant) closes most of the gap.
Ease of Care / Wash Durability
Adequate
Viscose t-shirts require cool gentle washing (30°C, slow spin) and flat drying to maintain dimensional stability. Machine washing on standard cycles causes progressive dimensional distortion — length elongation and width narrowing — due to viscose's low wet strength. For consumer-facing products, this wash care requirement is a genuine product management challenge that must be addressed through labelling and customer education.
Softness / Hand Feel
Viscose's regenerated cellulosic structure produces a fibre fineness of 1.2–1.7 dtex, giving Ne 30s yarn a handle comparable to combed cotton Ne 40s. The silk-like surface sheen and smooth drape create a premium sensory impression that punches above the fibre's cost point. The limitation: hand feel degrades faster than cotton without bio-polishing, as surface fibre ends fray after repeated washing.
Durability / Abrasion Resistance
Standard viscose single jersey (Ne 30s, 160 GSM) achieves 4,000–6,000 Martindale cycles — below cotton (8,000–12,000) and significantly below polyester. For t-shirts worn as outerwear with bag/backpack friction or heavy outdoor use, viscose alone is under-specified. Blending with polyester (CVC 60/40 or 70/30 viscose/polyester) pushes abrasion resistance to 8,000–10,000 cycles with manageable trade-offs on drape.
Colour Retention / Colorfastness
Viscose's cellulosic structure bonds with reactive dyes in the same way as cotton, achieving ISO 105-C06 wash fastness of 4–5 with correct dye selection and fixation. The advantage over cotton: viscose's smoother, more uniform fibre surface produces higher apparent colour depth — the same dye concentration reads 10–15% more saturated on viscose than on ring-spun cotton. For brands running deep-shade t-shirt programmes (black, navy, burgundy), this is a genuine benefit.
Breathability / Moisture Management
Viscose moisture regain is 11–13%, similar to lyocell and higher than cotton's 8.5%. Like lyocell, it manages moisture through absorption-diffusion rather than wicking, which means it performs well for everyday casual wear and poorly for high-perspiration athletic contexts. A 160 GSM viscose jersey at MVTR 900–1,100 g/m²/24h is genuinely comfortable in 20–32°C ambient temperatures.
Stretch & Recovery
Viscose has lower elastic recovery than cotton — a 20% width extension on single jersey recovers to within 6–9% of original dimension (versus cotton's 3–5%). This is the primary dimensional stability challenge for viscose t-shirts: armhole and shoulder seam distortion after washing, and seat/hem bagging after repeated wear. A 5% spandex addition changes this rating to 7/10 and is recommended for any fitted t-shirt silhouette.
Cost Efficiency
At ₹220–280/kg for standard viscose Ne 30s (Indian/Indonesian origin), viscose is the most cost-effective way to achieve a premium drape and colour-depth profile. It sits at 15–20% lower cost than ring-spun combed cotton Ne 30s at equivalent counts, with a significantly more luxurious finished-garment perception. The cost efficiency rating accounts for the higher manufacturing care required — which adds ₹15–25/garment in processing cost relative to cotton.
Sustainability / Eco Credentials
Standard viscose (non-ECOVERO, non-lyocell) uses an open-loop manufacturing process that recovers only 50–70% of solvents and generates carbon disulfide and hydrogen sulfide as process byproducts. Water consumption is lower than cotton but the chemical intensity is the environmental liability. This is the fibre's most significant weakness for ESG-oriented brands; switching to ECOVERO (Lenzing's sustainable viscose variant) closes most of the gap.
Ease of Care / Wash Durability
Viscose t-shirts require cool gentle washing (30°C, slow spin) and flat drying to maintain dimensional stability. Machine washing on standard cycles causes progressive dimensional distortion — length elongation and width narrowing — due to viscose's low wet strength. For consumer-facing products, this wash care requirement is a genuine product management challenge that must be addressed through labelling and customer education.
Technical Details
Manufacturing specifications.
Decision-grade specs for Viscose (Rayon) in T-Shirt Manufacturing. Open each block for the numbers, process constraints, and sourcing details that matter before production.
4 sections
25 checkpoints
Quick Read
First-pass technical cues
GSM Range
130–150 GSM: Lightweight fashion tees, layering pieces, resort/summer collections — Ne 40s–60s single jersey; drape is the primary feature at this weight
Yarn Count
Ne 30s: The sweet spot for commercial viscose t-shirts; smooth surface, good drape, runs on 24-gauge machines; standard for most CMT programmes
Knit Construction
Single jersey (24-gauge): Standard for viscose t-shirts; 24-gauge is minimum recommended — finer gauge (28+) significantly improves surface uniformity and reduces curl at cut edges
Shrinkage (ISO 6330, 30°C, gentle cycle, 3 wash cycles)
Without any pre-shrink treatment: Length 10–15%, Width 5–8%
GSM Range
• 130–150 GSM: Lightweight fashion tees, layering pieces, resort/summer collections — Ne 40s–60s single jersey; drape is the primary feature at this weight • 150–175 GSM: Standard viscose t-shirt range — Ne 30s–40s single jersey; the commercial core for mid-market branded tees • 175–200 GSM: Structured viscose tees, fashion basics, longer-length silhouettes — Ne 24s–30s single jersey or blended constructions; heavier weight improves dimensional stability • 200–220 GSM: Viscose-rich blended tees (60/40 viscose/polyester or viscose/cotton) for year-round wear — Ne 20s–24s; pure viscose above 200 GSM is rare due to cost and weight management
Yarn Count
• Ne 30s: The sweet spot for commercial viscose t-shirts; smooth surface, good drape, runs on 24-gauge machines; standard for most CMT programmes • Ne 40s: Finer jersey with more pronounced drape and sheen; requires 28-gauge knitting; higher per-kg cost, more fragile during processing — recommended for fashion-forward or premium applications only • Ne 24s: Heavier, more structured; appropriate for weighted tees where body weight is a design requirement; less pronounced viscose drape character at this count • Ne 20s: Only in blended yarns (viscose/polyester); pure viscose Ne 20s is too heavy and stiff for the characteristic viscose t-shirt handle
Knit Construction
• Single jersey (24-gauge): Standard for viscose t-shirts; 24-gauge is minimum recommended — finer gauge (28+) significantly improves surface uniformity and reduces curl at cut edges • Interlock (24-gauge): Heavier, more dimensionally stable; appropriate for structured-silhouette viscose tees but adds 20–25% weight vs single jersey at same gauge; less fluid drape • Viscose/spandex rib (1×1 or 2×2): Used for collars and cuffs only; pure viscose rib has poor recovery and will not maintain collar shape across multiple wash cycles • Single jersey with lycra plating: The most commercially common production method for fitted viscose tees — 95/5 or 93/7 viscose/spandex improves dimensional stability without materially affecting drape character
Shrinkage (ISO 6330, 30°C, gentle cycle, 3 wash cycles)
• Without any pre-shrink treatment: Length 10–15%, Width 5–8% • With wet relaxation only: Length 6–9%, Width 3–5% • With wet relaxation + compacting (overfeed stenter): Length 3–5%, Width 1–3% • With full pre-shrink programme + compacting: Length 2–3.5%, Width 1–2% • Acceptable commercial standard: ≤4% length, ≤2.5% width — achievable but requires disciplined processing; set these as contractual specifications with measurement protocol (ISO 6330 Method A, 30°C)
Pilling Resistance
• Pure viscose single jersey (Ne 30s): 2–3 (Martindale, ISO 12945-2) — lower than cotton; surface fibre fraying is the primary failure mechanism • Post bio-polish treatment: 3–4 (enzyme treatment removes surface fibres, significantly improves rating) • Viscose/polyester blend (60/40): 3–4 (polyester component contributes tensile stability) • Note: Pilling resistance is the most frequently cited customer complaint for viscose t-shirts; bio-polish is non-optional
Colorfastness (ISO 105 series)
• Wash fastness (C06): 4–5 with VS-reactive dyes, correct fixation; dark shades require 60°C fixation step • Light fastness (B02): 3–4 (viscose fades faster than cotton in direct UV — relevant for outdoor-worn t-shirts) • Dry rub (X12): 4; Wet rub: 3–4 • Chlorine bleach resistance (N01): 1–2 (viscose is highly sensitive to chlorine; household bleach destroys viscose fabric — must be stated on care label)
Tensile Strength
• Single jersey weft (Ne 30s, 160 GSM): 160–210 N/50mm dry (ISO 13934-1); drops to 90–120 N/50mm wet — wet tensile is the critical measurement for viscose • Minimum acceptable for t-shirt use (dry): 150 N/50mm • Minimum acceptable (wet): 80 N/50mm — if wet tensile falls below this threshold, the garment will deform at seams during machine washing
MOQ Guidance
• Viscose yarn (Ne 30s standard): 500 kg minimum per count per origin — widely available from Indian spinners (Indo Rama, Grasim/Birla, Sutlej Textiles); significantly lower lead times than specialty fibres • Fabric greige: 500–800 metres minimum per construction • Finished garment (CMT): 300–500 units per style/colour at most Tiruppur-based viscose-capable CMT units; 150–200 units for boutique mills with viscose-specific finishing lines
Honest Assessment
Every fibre has limits. Here's the full picture.
Every fibre has limits. Here's the full picture.
Strengths
Limitations
Drape that elevates perceived quality without proportional cost increase.
A 160 GSM viscose jersey t-shirt out-performs a 180 GSM combed cotton tee in editorial photography, fit modelling, and consumer touch-and-feel evaluations in the fashion-casualwear segment. The fabric's fluid movement and soft break at the shoulder creates a silhouette that retail buyers consistently associate with higher price points. The yarn cost is actually lower than equivalent combed cotton, making this a value-added differentiation with a negative premium.
Wet strength loss of 40–50% is a structural vulnerability, not a finishing variable.
Viscose loses nearly half its tensile strength when wet — this is an inherent property of the regenerated cellulosic fibre structure, not a quality issue that better finishing resolves. It means every viscose t-shirt programme must be designed around this constraint: correct wash care labelling, seam construction with reinforced stitch types, and realistic expectations for consumer care compliance. Brands targeting consumers who machine wash everything on standard cycles will face consistent dimensional distortion complaints with viscose t-shirts regardless of finishing quality.
Colour depth advantage for signature-shade programmes.
Viscose's uniform, smooth fibre surface accepts reactive dye uniformly and produces 10–15% greater apparent colour depth at equivalent dye concentration versus ring-spun cotton. For brands built around signature colours (olive, terracotta, true black), viscose's dye uptake is a production efficiency advantage as well as a colour quality benefit — less dye per metre to achieve the target shade, lower dye house processing cost.
Pilling requires bio-polish, and bio-polish requires process capability.
Standard viscose single jersey without bio-polishing grades at 2–3 on the Martindale pilling scale — below the acceptable threshold for a branded t-shirt. Bio-polishing is not a complex process, but it requires temperature and pH precision that many mid-tier mills do not consistently deliver. Buyers who discover pilling after delivery have no production-stage remedy — the fix is at the finishing line, and it cannot be applied retrospectively to finished garments.
Cost-competitive against cotton at equivalent market positioning.
At ₹220–280/kg for Ne 30s standard viscose, viscose yarn is 10–20% cheaper than combed cotton Ne 30s (₹270–320/kg). The finished garment ex-factory cost advantage is partially offset by higher processing requirements (wet relaxation, bio-polish), but the net cost structure supports viscose t-shirts at the same retail price tier as cotton while delivering a perceived quality premium.
Environmental profile of standard viscose is a liability in sustainability-forward markets.
The open-loop viscose process generates carbon disulfide (CS₂) and hydrogen sulfide (H₂S) as manufacturing byproducts and typically recovers only 50–70% of process chemicals. EU textile sustainability regulation (currently advancing under the Green Claims Directive) is increasingly scrutinising "sustainable" or "eco-friendly" claims for standard viscose. Brands selling into EU, UK, or ESG-aligned retail channels need to specify ECOVERO (Lenzing's sustainable viscose, OEKO-TEX Ecological Institute certified) or switch to lyocell to make defensible environmental claims. For domestic Indian market brands without EU export exposure, standard viscose is commercially viable on current regulatory requirements.
Blending flexibility for performance optimisation.
Viscose blends effectively with polyester (for durability), spandex (for recovery), cotton (for wash stability), and nylon (for abrasion resistance). The 55/45 or 60/40 viscose/polyester blend for t-shirts is an established commercial formula that recovers abrasion resistance to cotton-comparable levels while maintaining 70–80% of the drape characteristic. This blending versatility allows product teams to tune performance to application without switching fibre entirely.
Dimensional stability requires manufacturing discipline that cannot be audited from a spec sheet.
Unlike cotton, where pre-shrink compliance can be approximately assessed from standard mill capability data, viscose dimensional stability is highly sensitive to process sequence and tension control variables that vary by operator and shift. A mill that has never run viscose on the same specification as your order may deliver compliant results on the sample stage and non-compliant results in bulk. This is not exceptional for viscose — it is predictable. Mitigation requires on-site process audit or third-party in-line QC, not just pre-shipment fabric testing.
Wide supply chain availability in India and Southeast Asia.
Grasim Industries (Birla Cellulose) and Indo Rama together account for approximately 30% of global viscose fibre production, with manufacturing bases in India and Indonesia. For Indian CMT programmes, this means short, domestically anchored yarn supply chains with predictable pricing — unlike Tencel or modal which depend on Lenzing Austria for branded fibre.
Strength
Drape that elevates perceived quality without proportional cost increase.
A 160 GSM viscose jersey t-shirt out-performs a 180 GSM combed cotton tee in editorial photography, fit modelling, and consumer touch-and-feel evaluations in the fashion-casualwear segment. The fabric's fluid movement and soft break at the shoulder creates a silhouette that retail buyers consistently associate with higher price points. The yarn cost is actually lower than equivalent combed cotton, making this a value-added differentiation with a negative premium.
Limitation
Wet strength loss of 40–50% is a structural vulnerability, not a finishing variable.
Viscose loses nearly half its tensile strength when wet — this is an inherent property of the regenerated cellulosic fibre structure, not a quality issue that better finishing resolves. It means every viscose t-shirt programme must be designed around this constraint: correct wash care labelling, seam construction with reinforced stitch types, and realistic expectations for consumer care compliance. Brands targeting consumers who machine wash everything on standard cycles will face consistent dimensional distortion complaints with viscose t-shirts regardless of finishing quality.
Strength
Colour depth advantage for signature-shade programmes.
Viscose's uniform, smooth fibre surface accepts reactive dye uniformly and produces 10–15% greater apparent colour depth at equivalent dye concentration versus ring-spun cotton. For brands built around signature colours (olive, terracotta, true black), viscose's dye uptake is a production efficiency advantage as well as a colour quality benefit — less dye per metre to achieve the target shade, lower dye house processing cost.
Limitation
Pilling requires bio-polish, and bio-polish requires process capability.
Standard viscose single jersey without bio-polishing grades at 2–3 on the Martindale pilling scale — below the acceptable threshold for a branded t-shirt. Bio-polishing is not a complex process, but it requires temperature and pH precision that many mid-tier mills do not consistently deliver. Buyers who discover pilling after delivery have no production-stage remedy — the fix is at the finishing line, and it cannot be applied retrospectively to finished garments.
Strength
Cost-competitive against cotton at equivalent market positioning.
At ₹220–280/kg for Ne 30s standard viscose, viscose yarn is 10–20% cheaper than combed cotton Ne 30s (₹270–320/kg). The finished garment ex-factory cost advantage is partially offset by higher processing requirements (wet relaxation, bio-polish), but the net cost structure supports viscose t-shirts at the same retail price tier as cotton while delivering a perceived quality premium.
Limitation
Environmental profile of standard viscose is a liability in sustainability-forward markets.
The open-loop viscose process generates carbon disulfide (CS₂) and hydrogen sulfide (H₂S) as manufacturing byproducts and typically recovers only 50–70% of process chemicals. EU textile sustainability regulation (currently advancing under the Green Claims Directive) is increasingly scrutinising "sustainable" or "eco-friendly" claims for standard viscose. Brands selling into EU, UK, or ESG-aligned retail channels need to specify ECOVERO (Lenzing's sustainable viscose, OEKO-TEX Ecological Institute certified) or switch to lyocell to make defensible environmental claims. For domestic Indian market brands without EU export exposure, standard viscose is commercially viable on current regulatory requirements.
Strength
Blending flexibility for performance optimisation.
Viscose blends effectively with polyester (for durability), spandex (for recovery), cotton (for wash stability), and nylon (for abrasion resistance). The 55/45 or 60/40 viscose/polyester blend for t-shirts is an established commercial formula that recovers abrasion resistance to cotton-comparable levels while maintaining 70–80% of the drape characteristic. This blending versatility allows product teams to tune performance to application without switching fibre entirely.
Limitation
Dimensional stability requires manufacturing discipline that cannot be audited from a spec sheet.
Unlike cotton, where pre-shrink compliance can be approximately assessed from standard mill capability data, viscose dimensional stability is highly sensitive to process sequence and tension control variables that vary by operator and shift. A mill that has never run viscose on the same specification as your order may deliver compliant results on the sample stage and non-compliant results in bulk. This is not exceptional for viscose — it is predictable. Mitigation requires on-site process audit or third-party in-line QC, not just pre-shipment fabric testing.
Strength
Wide supply chain availability in India and Southeast Asia.
Grasim Industries (Birla Cellulose) and Indo Rama together account for approximately 30% of global viscose fibre production, with manufacturing bases in India and Indonesia. For Indian CMT programmes, this means short, domestically anchored yarn supply chains with predictable pricing — unlike Tencel or modal which depend on Lenzing Austria for branded fibre.
Common Questions
Viscose (Rayon) for T-Shirt Manufacturing — answered.
Viscose for T-Shirt Manufacturing — answered.
Viscose is 65–80% cheaper per kg than modal (Ne 30s: ₹220–265/kg vs ₹380–460/kg) and produces comparable drape character and colour depth. The critical performance gap is wet tensile strength: viscose loses 40–50% of dry tensile strength when wet, versus modal's 25–30% loss. In practical terms for t-shirts washed repeatedly on gentle cycles, modal maintains shape and seam integrity noticeably better over 30+ wash cycles. The decision comes down to: if your retail price supports modal economics (above ₹899–1,099), modal is the better investment for wash durability. Below ₹699, viscose with proper finishing delivers acceptable performance at correct consumer care behaviour, and the drape story is equivalent.
More Resources
Explore adjacent fibres, applications, and technical terms.
Other Viscose (Rayon) applications:
Alternative fibres for T-Shirt Manufacturing:
Related glossary terms:
Experience It
The difference isn't marketing.
It's in the fibre.
One wash cycle won't tell you. Thirty will.
Free sourcing consultation · Data-driven recommendations · No obligation
Ask about Viscose (Rayon) →Available for B2B sourcing consultations