Material & Fibre Specification Directory
A custom bag is only as enduring as the raw textile beneath the stitches. At TelvaBag, we source directly from certified ethical weavers and textile mills across Asia and Europe. Whether you require tightly plied 20oz water-resistant duck canvas, Normandy French flax linen, hand-split Indonesian cane, or heritage madder-dyed silk threads, explore our verified engineering metrics and order real tactile swatches.
Every fabric quality in our library undergoes standard laboratory verification: breaking tensile strength (ASTM D5034), crocking colorfastness (ISO 105-X12), and dimensional stability after washing. Zero toxic azo dyes, zero phthalates, fully compliant with EU REACH and California Prop 65.
Cotton & Linen Canvas Weights Guide (8oz to 24oz)
Selecting the wrong fabric weight leads to collapsed silhouettes, seam pulling, or needle cutting under dense embroidery. Below is our engineering blueprint pairing bag architectures with fabric densities.
Textile Mechanical Strength & Laboratory Test Matrix
We eliminate guesswork by subjecting all fabric batches to rigorous testing under ASTM and ISO standards. Below are the verified laboratory metrics for our standard bag textiles.
| Fabric Quality & Spec | Grammage (GSM) | Tensile Breaking Strength (Warp / Weft) | Hydrophobic / Water Repellency | Recommended Bag Application |
|---|---|---|---|---|
| 8oz Light Cotton Sheeting | 230 gsm | 420 N / 380 N | Natural Breathable (Uncoated) | Dustbags, packable pouches, cosmetic drawstrings |
| 12oz Heavy Duck Canvas | 350 gsm | 850 N / 760 N | Fluorine-Free C6 DWR (Grade 3 Repellency) | Everyday carry totes, museum gift bags, book shoppers |
| 16oz Heavyweight Cotton-Linen | 480 gsm | 1,250 N / 1,100 N | Natural Beeswax or Eco Hydrophobic Coating | Suzani craft totes, luxury resort cabanas, structured beach totes |
| 20oz Industrial Sailcloth Canvas | 620 gsm | 1,850 N / 1,600 N | Dual-Sided PU Backing + Lotus Leaf Repellency | Weekend travel duffels, heavy luggage base panels, expedition gear |
| Pure Normandy French Flax Linen | 380 gsm | 780 N / 720 N | Pre-Washed Enzyme Softened (Shrinkage < 1.5%) | Designer capsule summer totes, vanity pouches, luxury clutches |
| GOTS Certified Organic Cotton Canvas | 400 gsm | 920 N / 840 N | 100% Non-Toxic PFC-Free Hydrophobic Finish | Eco-conscious sustainable fashion brands, ESG corporate gifting |
4 Core Botanical & Renewable Fibre Families
In addition to woven textiles, our Dongguan atelier specializes in structural basketry framing and heritage plant dyes. We source 4 renewable botanical fibres directly from sustainable plantations across Asia.
Botanical Dyeing Science & Heritage Natural Pigment Chemistry
In modern luxury craft goods, discerning buyers increasingly reject harsh petroleum-derived synthetic dyes with aggressive chemical gloss. TelvaBag operates an in-house botanical dye extraction studio, merging ancient extraction recipes with food-grade bio-mordanting to deliver luminous earthy hues that achieve commercial fastness standards.
All botanical-dyed batches undergo standardized laboratory washing (ISO 105-C06 40°C wash test achieving Grade 4.0+), Xenon-arc weathering (ISO 105-B02 Grade 5+), and dry/wet crocking tests (ISO 105-X12 Grade 4.5). We combine the poetic authenticity of natural dyeing with modern commercial durability.
Global Chemical Compliance, Safety & Environmental Certifications
Navigating customs clearance and retail compliance in North America, Europe, and Asia-Pacific requires stringent documentation. TelvaBag tests every master production lot with accredited third-party laboratories (SGS, Intertek, TÜV Rheinland), ensuring zero carcinogenic aromatic amines, heavy metal traces, or hazardous plasticizers.
| Standard / Regulation | Regulatory Scope | Testing Threshold Limit | TelvaBag Laboratory Result |
|---|---|---|---|
| OEKO-TEX Standard 100 Class I | Direct human skin contact textiles | Formaldehyde < 16 ppm, Heavy metals < 0.1 ppm | Non-Detectable (ND) at 0 ppm |
| EU REACH (EC) No 1907/2006 | 235+ Substances of Very High Concern (SVHC) | < 0.1% by weight (1,000 ppm) | Zero SVHC detected in canvas, lining & trims |
| California Proposition 65 | Lead, cadmium & 6P phthalate plasticizers | Total Lead < 90 ppm, Phthalates < 1,000 ppm | Total Lead < 8 ppm, 6P Phthalates ND |
| ASTM D5034 Grab Tensile Strength | Structural seam and fabric body rupture load | Industry Standard: Warp/Weft > 450 N | TelvaBag 16oz: Warp 1,120 N / Weft 980 N |
Lot-specific Transaction Certificates (TC) for organic cotton under GOTS and formal mill test certificates (MTC) accompany every container shipment. By engineering raw material safety into our foundational supply chain, we protect your brand against regulatory recalls, customs detentions, and retail liability claims.
Verified Craft Silhouettes Ready for Sourcing
See how our heavy cotton canvas, French flax linen, and botanical silk threads perform when assembled into finished bag silhouettes. These proven models are available for rapid custom sampling.
Production & Customization FAQ
Can we order a physical material swatch kit before finalizing our design tech packs?
Yes. We assemble curated B2B Swatch Binders containing 8–24oz canvas swatches, French linen samples, botanical dyed silk thread cards, and hand-woven reed chips. We ship worldwide via DHL/FedEx Express in 3–5 business days.
What is the minimum order quantity (MOQ) and lead time for custom Pantone (PMS) fabric dye matching?
For our 12oz and 16oz cotton canvas, custom Pantone dye runs require an MOQ of 300 meters (producing approximately 180 to 220 tote bags depending on dimensions). We provide lab dips (A/B/C options) within 4 to 6 business days, and bulk dyeing requires 12 to 15 business days following dip sign-off. Alternatively, we keep over 42 stock shades on our warehouse racks with zero minimum fabric order quantity.
Can you apply water-repellent, anti-mildew, or stain-resistant functional finishes to heavy cotton canvas?
Yes. We offer 3 industrial fabric functional treatments: (1) C6 fluorocarbon-free Durable Water Repellent (DWR) achieving AATCC 22 spray rating Grade 3+. (2) Botanical silver-ion anti-mildew finishing compliant with ASTM G21 zero fungal growth under 95% relative humidity. (3) Food-grade matte TPU interior lamination for resort beach bags that wipe completely clean with a damp towel.
How do you prevent needle cutting and thread breakage when executing dense multi-layer embroidery on 16oz or 20oz canvas?
Executing heavy embroidery on dense textiles requires specialized needle engineering: (1) We deploy German Groz-Beckert titanium-nitride coated needles with light ball points (SES) that slip between yarn plies rather than cutting cotton fibers. (2) We program vector stitch density to never exceed 4.2 stitches/mm². (3) We apply a water-soluble backing stabilizer beneath the canvas to disperse localized puncture stress across the fabric plane.
What formal chemical and environmental certifications accompany your raw textiles (e.g., GOTS, OEKO-TEX, REACH)?
All textiles in our library comply with stringent European and North American retail regulations: (1) OEKO-TEX Standard 100 Class I (safe for skin contact, tested free of carcinogenic dyes and heavy metals). (2) Certified GOTS organic cotton transaction certificates (TC) provided on qualifying organic production lots. (3) Full laboratory documentation of zero SVHC (Substances of Very High Concern) under EU REACH Regulation (EC) No 1907/2006.
What is the structural and longevity difference between authentic botanical rattan and synthetic plastic PP wicker?
Authentic botanical cane is a lignified natural cellular material: it develops a rich amber patina over years of use, breathes in summer humidity without sweating, and biodegrades organically. Synthetic PP/PE plastic wicker is petroleum-derived; while waterproof, it emits petrochemical odors, becomes brittle and cracks under outdoor UV rays within 18 months, and lacks the tactile warmth demanded by luxury boutique clients.