Pick up two promotional bags at any trade show — one stiff and fabric-like with a subtle grid texture, the other softer with a smooth, slightly papery feel — and you are holding a woven bag and a non-woven bag. From a distance, they look similar. In use, they behave quite differently.
Woven bags are made by interlacing strips or yarns of material into a structured fabric, using the same fundamental technique that has been used in textile production for millennia. Non-woven bags are produced by bonding fibres together with heat or pressure — no interlacing, no weaving, no knitting. The resulting material is lighter, cheaper, and faster to produce, but it reaches a structural ceiling that woven fabric does not.
Understanding this distinction matters more than most buyers realise. The choice between woven and non-woven affects how long a bag lasts, how well it carries a brand’s visual identity, whether it has genuine environmental credentials, and what it costs to produce at scale.
One important clarification upfront: most competitor guides treat “woven” as synonymous with woven polypropylene (PP). It is not. Woven bags include cotton canvas, jute, and other natural fibre constructions that behave quite differently from PP woven — and that form the core of many eco-focused brand programmes. This guide covers all of them.
How They’re Made: The Manufacturing Difference Explained
How Woven Bags Are Made
The woven category covers two distinct production paths, and understanding both is essential for sourcing decisions.
PP woven bags begin with polypropylene resin, which is melted and extruded into flat tape-like strips. These strips are then interlaced on a loom — horizontal weft tapes crossing over and under vertical warp tapes — to produce a dense, rigid fabric. The mechanical interlocking of the tapes is what gives PP woven bags their characteristic strength. Because the raw PP surface is slippery and difficult to print directly, most PP woven bags require lamination — a thin layer of BOPP (biaxially oriented polypropylene) film bonded to the surface — to create a printable face.
Natural fibre woven bags — cotton canvas, jute, juco — follow a different path. Cotton or jute fibres are spun into yarn, which is then woven on a loom in a plain or twill weave pattern. Unlike PP, the resulting fabric requires no lamination to accept print: the natural fibre surface absorbs ink directly, making screen printing, digital printing, and heat transfer all viable without additional processing. This is one of the most significant practical differences between synthetic and natural woven bags.
In both cases, the mechanical principle behind strength is the same: interlaced threads or tapes lock against each other under tension. When the fabric is pulled, the weave tightens, distributing load across the entire structure rather than concentrating it at a single point.
How 不織布バッグ Are Made
Non-woven fabric is produced without any weaving or knitting process. The most common variant, non-woven polypropylene (NWPP), is made by extruding PP into fine fibres, which are laid down in a random or directional web, then bonded together by passing through heated rollers under pressure. The result is a sheet of fabric-like material formed entirely by fibre entanglement and thermal bonding rather than mechanical interlacing.
Three variants are relevant to the bag market. Standard non-woven PP is the most widely produced and lowest-cost option, used for the majority of promotional and retail carrier bags globally. rPET non-woven is produced using the same bonding process but with fibre derived from recycled PET plastic bottles rather than virgin polypropylene — functionally similar to standard NWPP, but with a more defensible environmental profile and eligibility for GRS certification. PLA non-woven is made from polylactic acid, a bioplastic derived from plant starch, and is industrially compostable under controlled conditions. PLA non-woven bags remain a niche option due to cost and the limited availability of industrial composting infrastructure.
The thermal bonding process that creates non-woven fabric also defines its performance ceiling. Fibres bonded by heat and pressure will eventually separate under repeated mechanical stress — heavy loading, sharp folding, or sustained friction — in a way that interlaced woven fibres will not. This is why non-woven bags have a lower load capacity and shorter usable lifespan than woven alternatives of equivalent weight.
The Visual Test: How to Tell Them Apart
The easiest way to distinguish a woven from a non-woven bag is to examine the inside surface where no print or coating obscures the base material.
A woven bag shows a clear grid pattern: individual tapes or threads running at 90-degree angles, crossing over and under each other in a repeating pattern. A non-woven bag shows a uniform, slightly fibrous texture with no visible interlacing — more like felt or paper than woven fabric.
Tactile differences also help. PP woven fabric has a firm, somewhat plastic-like hand and makes a distinct rustling sound when handled. Non-woven PP is softer, quieter, and has a slight elasticity that woven fabric lacks. Natural fibre woven bags — cotton canvas in particular — feel warmer and more textile-like than either synthetic variant.
Performance Comparison: Strength, Print Quality and Lifespan
Strength and Load Capacity
Structural strength is where the woven and non-woven categories diverge most clearly.
Woven bags — whether PP or natural fibre — benefit from the mechanical advantage of interlaced construction. Under load, the weave tightens, and stress distributes across the full fabric rather than concentrating at weak points. PP woven bags comfortably handle loads of 15 to 20 kg in standard commercial constructions. Cotton canvas bags at 12 oz and above perform similarly. Jute and juco constructions typically handle 8 to 15 kg depending on fabric weight.
Non-woven PP bags are limited by their bonding strength rather than fibre tensile strength. The performance of a non-woven bag is therefore largely determined by its GSM (grams per square metre) — the weight of fabric per unit area. Buyers specifying non-woven bags should always request GSM confirmation, as visual inspection alone cannot reliably indicate construction weight.
The practical GSM ranges for non-woven promotional bags break down as follows:
- 60 gsm: Lightweight promotional insert bags, single-use gift wrapping, conference collateral inserts. Not suited to carrying meaningful loads. Maximum practical load approximately 3–4 kg.
- 80 gsm: The most common specification for standard retail and promotional tote bags. Handles light grocery shopping and everyday carry at approximately 5–8 kg. Suitable for most brand giveaway applications.
- 100–120 gsm: Heavy-duty non-woven bags for sustained retail use, grocery carry, or applications where the bag will be reused frequently. Load capacity approximately 8–12 kg. Noticeably more durable than 80 gsm under repeated use.
Print Quality and Customisation
Print quality differences between woven and non-woven bags are significant and frequently underestimated in sourcing decisions.
PP woven bags achieve their best print results through BOPP lamination. The smooth laminated surface supports high-definition, full-colour printing with excellent colour saturation and fine detail reproduction. The limitation is that print sits on the laminate surface rather than bonding with the fabric — over time, heavy use can cause edge peeling or surface scuffing that affects print integrity.
Cotton canvas offers the highest overall print quality in the bag category. The flat, stable, naturally absorbent surface accepts ink consistently across screen printing, digital direct-to-fabric, and heat transfer methods. Fine lines, small text, photographic artwork, and multi-colour designs all reproduce accurately. Print durability through washing is strong, particularly with quality screen inks.
Non-woven PP accepts screen printing well for bold, high-contrast designs. Single and two-colour logos, event branding, and simple graphic elements reproduce cleanly on non-woven surfaces. Where non-woven falls short is in fine detail and print longevity — the bonded surface does not hold ink as durably as woven fabric, and repeated friction or washing degrades print quality faster than cotton or laminated woven alternatives.
Complete Performance Scorecard
| PP Woven | Cotton Canvas | Jute / Juco | Non-Woven PP | rPET Non-Woven | |
|---|---|---|---|---|---|
| 最大積載量 | 15–20 kg | 12–18 kg | 8–15 kg | 5–12 kg (GSM-dependent) | 5–10 kg |
| Tear resistance | Excellent | Excellent | Good | Moderate | Moderate |
| Print quality | Very good (laminated) | Excellent | Moderate | Good | Good |
| Print durability | Good (surface peeling risk) | Excellent | Moderate | Moderate | Moderate |
| 洗濯機で洗えます | ✗ | ✓ | ✗ | ✗ | ✗ |
| Foldable / packable | Moderate | Moderate | 低 | ✓ Very compact | ✓ Very compact |
| Estimated lifespan | 3–5 years | 5–8 years | 2–4 years | 1–3 years | 1–3 years |
| Relative unit cost | 中 | 中～高 | 中 | 低 | 低～中 |
The Eco Question: Are Non-Woven Bags Actually Sustainable?
What Non-Woven Bags Are Really Made Of
This is the question that brand communications around non-woven bags consistently avoid, and it deserves a direct answer.
Standard non-woven polypropylene is plastic. It is produced from polypropylene, a petroleum-derived synthetic polymer, and it does not biodegrade in any meaningful timeframe in the natural environment — degradation estimates for PP in soil typically exceed 500 years. A non-woven PP bag that is not reused extensively and not collected for recycling at end of life is, functionally, a piece of plastic waste.
The widespread marketing of non-woven PP bags as “eco bags” or “green bags” rests on a relative claim: they are reusable, and therefore better than single-use plastic carrier bags if they are actually reused. Research suggests that a non-woven PP bag needs to be used a minimum of 11 to 37 times — depending on the study methodology and the baseline plastic bag scenario — to offset the higher carbon cost of its production compared to a single-use plastic bag used once. For a bag that genuinely gets that level of use, the claim holds. For a bag that is used once or twice before being discarded, it does not.
The implication for brands is practical: non-woven PP bags deliver on their environmental promise only when they are designed and distributed in a way that encourages sustained reuse. A well-made 100–120 gsm non-woven tote distributed to an engaged customer base who will actually use it regularly is a defensible choice. A thin 60 gsm bag handed out at a single event and unlikely to survive more than a few uses is not.
rPET Non-Woven: A More Defensible Choice
For brands committed to non-woven bag formats — whether for cost, production speed, or design reasons — rPET non-woven offers meaningfully stronger environmental credentials than standard PP.
Produced from recycled PET plastic bottles rather than virgin polypropylene, rPET non-woven fabric addresses the raw material dimension of the environmental argument. It diverts post-consumer plastic waste from landfill, reduces reliance on virgin petroleum, and is eligible for GRS (Global Recycled Standard) certification, which provides a verifiable, auditable chain of custody from source material to finished bag.
Performance is comparable to standard non-woven PP at equivalent GSM. Unit cost is typically 10–20% higher, though the gap has narrowed as rPET supply chains have matured. For brands where environmental credentials are a material part of the product story, that premium is generally worth carrying.
Natural Woven Bags: The Biodegradable Option
Cotton canvas そして jute stand apart from all synthetic bag materials in one fundamental respect: they biodegrade. An uncoated cotton canvas or jute bag, at the end of its useful life, will break down in soil or composting conditions without leaving synthetic residues. No PP woven or non-woven bag — rPET included — can make that claim.
For brands whose environmental positioning centres on natural materials, circular agriculture, or zero-plastic commitments, natural fibre woven bags are the only genuinely aligned option. GOTS-certified organic cotton canvas provides the most comprehensive verifiable credentials, covering the full supply chain from organic farm to finished product.
Eco Credentials Comparison
| PP Woven | Cotton Canvas | ジュート | Non-Woven PP | rPET Non-Woven | |
|---|---|---|---|---|---|
| 生分解性 | ✗ | ✓ | ✓ | ✗ | ✗ |
| Recyclable | ✓ (PP recycling) | ✓ (textile recycling) | ✓ | ✓ (PP recycling) | ✓ (PET recycling) |
| Recycled content available | Limited | Optional (GRS) | ✗ | Limited | ✓ GRS certified |
| Organic certified (GOTS) | ✗ | ✓ | ✗ | ✗ | ✗ |
| Microplastic risk | ✓ Low | ✗ None | ✗ None | ✓ Low | ✓ Low |
| Carbon footprint | 中 | 中～高 | 低 | 低～中 | 低～中 |
| Raw material origin | Virgin petroleum | Natural / organic | Natural | Virgin petroleum | Recycled PET |
Cost, MOQ and Sourcing Considerations
Unit Cost Comparison
Cost differences between materials are substantial and have a direct bearing on which option is viable at different budget levels.
Non-woven PP sits at the lowest end of the cost spectrum across all common bag materials. Its simple manufacturing process — extrusion, bonding, cutting, and heat sealing — requires less labour and machinery time than woven alternatives. For high-volume promotional programmes where budget is the primary constraint, non-woven PP is typically the default choice.
PP woven bags cost more due to the additional weaving and lamination steps involved. However, the durability premium means cost-per-use over the bag’s lifetime is often lower than non-woven alternatives — a relevant calculation for retail programmes where bags are expected to be used repeatedly.
Cotton canvas carries the highest unit cost among standard bag materials, reflecting both the raw material cost of cotton and the more labour-intensive weaving and finishing process. The cost is partially offset by brand value: a well-designed canvas tote communicates quality in a way that neither PP woven nor non-woven can replicate, supporting higher retail price points and stronger brand recall.
rPET non-woven commands a premium of approximately 10–20% over standard non-woven PP, with the gap reflecting the cost of certified recycled feedstock and GRS certification. For brands with sustainability commitments, this is typically the most cost-effective way to add verifiable environmental credentials to a non-woven bag programme.
Production Lead Time and MOQ
Lead times and minimum order quantities vary by material and construction complexity, and should be factored into sourcing timelines from the outset.
Non-woven PP has the shortest production cycle of any common bag material. The automated nature of the manufacturing process means standard specifications can move from confirmed order to finished goods in three to four weeks. MOQ for non-woven PP bags is typically 1,000 units and above for custom print orders, making it accessible for mid-sized campaigns.
PP woven bags involve an additional lamination step and more complex construction, pushing lead times to five to seven weeks for standard orders. MOQ is typically 1,000 units and above, with price per unit decreasing significantly at higher volumes.
Natural fibre woven bags — cotton canvas and jute — carry the longest lead times, particularly when GOTS or other certified materials are specified. Sourcing certified organic cotton yarn, weaving, and finishing can extend production timelines to eight to twelve weeks for new specifications. MOQ is typically 1,000 units and above for custom orders, though some certified fabric programmes have higher minimum requirements at the fabric sourcing stage.
As a general principle: urgent turnaround requirements favour non-woven PP; long-term brand programmes with premium positioning favour natural fibre woven bags; and rPET non-woven sits between the two in both lead time and cost.
Sourcing Decision Matrix
| ユースケース | おすすめの教材 | 推奨仕様 | Key Reason |
|---|---|---|---|
| Single-day event giveaway, simple logo | PP不織布 | 80 gsm, 1–2 colour screen print | Lowest cost, fast production |
| Retail shopping bag, daily reuse | PP woven or cotton canvas | Laminated PP woven / 10 oz cotton | Durability justifies higher unit cost |
| Corporate gift, premium positioning | Cotton canvas | 12 oz, GOTS organic optional | Print quality, brand perception |
| Eco-brand with recycled content claim | rPET non-woven | 100 gsm, GRS certified | Verifiable recycled credentials |
| Organic / natural brand programme | GOTS organic cotton canvas | 10–12 oz | Only option with verifiable organic chain |
| High-volume supermarket carrier bag | PP woven (laminated) | Standard laminated woven | Load capacity, durability, cost efficiency |
| Budget priority, no eco requirement | PP不織布 | 80–100 gsm | Lowest unit cost at scale |
| Brand wanting natural aesthetic, lower cost | Jute or juco | Natural uncoated | Visual authenticity at lower price than cotton |
よくある質問
What is the difference between woven and non-woven bags?
Woven bags are made by interlacing fibres or strips of material in a crisscross pattern, creating a structured fabric with high tensile strength. Non-woven bags are made by bonding fibres together with heat or pressure, without any weaving process. The manufacturing difference results in woven bags being significantly stronger and more durable, while non-woven bags are lighter, softer, and less expensive to produce.
Are non-woven bags better than plastic bags?
Non-woven PP bags are better than single-use plastic carrier bags — but only if they are actually reused. Research suggests a non-woven PP bag needs to be used at least 11 to 37 times to offset the higher carbon cost of its production compared to a single-use plastic bag. A non-woven bag used once or twice does not deliver meaningful environmental benefit over the item it replaces.
How many times should a non-woven bag be reused to be eco-friendly?
Based on lifecycle assessment research, a standard non-woven polypropylene bag should be reused a minimum of 11 times to offset its production footprint relative to a single-use plastic carrier bag. For comparison with cotton bags, the reuse threshold is significantly higher — a cotton tote needs to be used hundreds of times to offset cotton cultivation’s environmental cost. The most sustainable bag in any category is the one that is actually used most frequently over its lifetime.
Are non-woven bags recyclable?
Standard non-woven PP bags are technically recyclable through polypropylene recycling streams, but collection infrastructure varies significantly by region. Most kerbside recycling programmes do not accept non-woven PP — bags typically need to be taken to a dedicated plastic film or soft plastic drop-off point. rPET non-woven bags follow the same logic through PET recycling channels. Neither material is accepted in standard household recycling in most markets, which is a practical limitation brands should account for in end-of-life communications.
What GSM should I specify for a non-woven bag?
For single-use event giveaways where the bag will carry light collateral, 80 gsm is the standard specification. For retail shopping bags intended for repeated grocery use, 100–120 gsm provides meaningfully better durability and load capacity. Avoid 60 gsm for any application where the bag will carry real weight — the load ceiling is approximately 3–4 kg and the lifespan under regular use is short. Always request GSM confirmation in writing when placing wholesale non-woven bag orders, as the figure cannot be reliably assessed from visual inspection alone.
Can non-woven bags be custom printed with a logo?
Yes. Non-woven PP and rPET non-woven bags both accept screen printing for bold, single- or multi-colour logo artwork. For clean reproduction, designs should use solid fills and avoid fine lines below 1mm or small text below 8pt. Full-colour photographic prints require BOPP lamination on the bag surface. Heat transfer is also an option for small-run orders where screen setup costs are a factor. EcoBagFactory supports custom logo printing across all non-woven bag formats with no artwork setup fee on orders above MOQ.
