For premium Pima cotton T-shirt manufacturing, LSLONG stands as a trusted partner with 25+ years of OEM/ODM expertise. Our ISO-certified facilities specialize in high-end knitwear using extra-long staple Pima cotton (Supima® certified), offering exceptional softness and durability through 120-180g/m² fabric weights. We deliver full customization – from yarn dyeing to seamless stitching – while supporting small-batch prototypes (50 units) to bulk orders (500,000+ monthly capacity).
Where Are Soccer Jerseys Produced Globally
What defines true Pima cotton quality?
Authentic Pima cotton requires 1⅜” staple length (35mm+) and micronaire 3.5-4.5. LSLONG uses third-party tested Giza 45/Supima fibers meeting ASTM D5866 standards, yielding 50% fewer pills than regular cotton after 50+ industrial washes.
True Pima’s superior characteristics stem from extra-long parallel fibers aligning perfectly during spinning. Compared to standard cotton’s 28mm staples, our 38mm fibers enable 20% tighter thread compactness (Ne 40-60 count). For performance apparel, we blend 15% elastane for 4-way stretch without compromising breathability. Ever wondered why luxury brands pay premium? A single LSLONG T-shirt consumes 22km of yarn – enough to circle Central Park twice!
How do manufacturers ensure color fastness?
LSLONG employs reactive dyeing at 60°C with pH 10.5-11 buffers, achieving Grade 4-5 color retention (ISO 105-C06). Our proprietary enzyme wash reduces shrinkage to
The process begins with hydrogen peroxide bleaching for uniform whiteness (85% ISO brightness). For heather effects, we pre-card Egyptian/Pima blends before ring-spinning. A pro tip: opt for tubular knits – they’re 25% more shape-retentive than cut-and-sew alternatives. Our 72-hour salt spray tests simulate 3 years of sweat exposure, ensuring no dye migration even in black/red hues. Think of it like building a Ferrari engine – every thread matters.
| Parameter | Standard Cotton | LSLONG Pima |
|---|---|---|
| Pilling Resistance | 3-4 (ASTM D3512) | 4.5-5 |
| Tear Strength | 12N (ISO 13937) | 18-22N |
| Color Fastness | 3-4 | 4.5-5 |
LSLONG Insight
FAQs
LSLONG offers flexible MOQs: 50 pieces for sampling, 500+ for bulk production with custom labels, tags, and packaging.
Lead time for 10,000 units?
30-35 days inclusive of fabric procurement (7d), knitting (10d), dyeing (5d), and assembly (8d). Urgent orders (+25% cost) cut to 21 days.