Most buyers starting a nonwoven OEM project want to know three things. What do we need to provide to get started? How long will sampling take? And how is quality maintained once the sample is approved?
Yi-Ting has more than 30 years of nonwoven manufacturing experience, with 50 converting machines across 15 equipment types and a dedicated nonwoven composite development line. This guide explains how we take a product from initial requirements to a validated sample and consistent mass production, using a real application as an example. If you're new to nonwovens, Nonwoven Fabric 101 covers the basics.
What You Need to Get Started
You don't need to know which material to use, or what equipment it will take to make the product. Most projects start with three things.
1. What the product does and where it's used. Brewing coffee at 100°C, protecting auto parts in transit, lasting a full growing season outdoors: each use places different demands on strength, water resistance or permeability, breathability, light blocking and printability. The use conditions tell us where to start with material selection.
2. The performance that matters most. For a pour-over coffee filter, it's usually flow rate. For tea bags in commercial brewing, it's seal integrity under sustained boiling. Knowing this from the start means the first sample is built to the right target. (Flow rate depends largely on the filter material itself; our guide to nonwoven materials for drip coffee and cold brew explains why.)
3. Whatever you already have. A current product, a sample, a photo, a drawing or a spec sheet all help. If the product will run on an automatic filling or packing machine, just tell us the machine type or how it runs today. We'll confirm the sealing conditions with you and, where needed, work back from the product to suggest adjustments on the machine side.
If all you have is an idea or a photo, that's enough to start the conversation.
How We Plan the Process: Combining Existing Equipment to Build Your Product
A nonwoven product that looks simple usually isn't. A flat pouch looks like a single piece of fabric, but making one takes three separate operations (slitting, folding, and sealing and cutting) on three different machines. You bring the product drawing or a sample; we plan the process.
Planning starts with the base fabric. Spunbond, spunlace, thermal bond and meltblown nonwovens each bring different strength, softness, loft and filtration properties, and the right choice depends on what the product needs to do.
From there, our 50 machines across 15 equipment types mean we don't push every product through one fixed line. We combine operations such as slitting, rewinding, cross-cutting, lamination, forming, bag making, sealing, cutting and packaging into the processing route that best fits your material, dimensions, structure and production volume. For an overview of our equipment and processes, see Manufacturing Capabilities.
That flexibility gives you three practical advantages:
- Lower volumes to get started. Because existing equipment and tooling can be combined, many products go straight into sampling or production with no dedicated mold or new equipment. You don't need a large first order to cover tooling costs.
- Tooling only when it pays off. If a dedicated mold makes sense, for example to differentiate your product in the market, we'll explain the difference between production tooling and prototype tooling, and when each is worth it.
- Flexible capacity. Similar operations can be scheduled across multiple machines, so output for a single product can be ramped up quickly. We recently doubled our capacity for sustainable solutions to better serve customers in Europe and North America.
Application Example: Fruit Protection Bags Built Around Each Crop
Fruit protection bags show how one product category can call for very different solutions. Growers of mango, guava, dragon fruit, pear, apple, banana, papaya and persimmon all use bags, but each crop and growing environment puts the bag under different pressure.
A fruit bag first has to breathe, so heat and moisture don't build up and cause spotting or rot. It also has to keep out fruit borers and fruit flies, deter birds, and reduce rain-induced fruit cracking. Light blocking and UV resistance protect the appearance of the skin, which directly affects market value. And because many bags are reused, durability matters too: depending on basis weight and field conditions, most of our fruit bags last one to three growing seasons.
Rather than offering one standard bag, we work from each crop's actual conditions:
- Material and basis weight matched to the climate and the number of seasons the bag needs to last
- Composite structures, laminating nonwoven with PE film, mesh, paper or a waterproof layer, when a single layer can't meet every requirement
- Custom sizes and shapes, in any width and height, with drawstring-free designs and special shapes for fruit such as dragon fruit
- Printing, labeling and export-grade packaging for brand and export programs
You can read more about our nonwoven fruit protection bags, or see how the same approach applies to freeze protection fabric for crops exposed to frost.
We don't assume one bag fits every crop. Development starts with what the fruit actually faces in the field.
The Six Steps of Nonwoven OEM Sample Development
Every project follows the same six steps. How much work each step involves depends on the complexity of the product. The table shows what Yi-Ting does at each stage and what you receive.
| Step | What Yi-Ting does | What you receive |
|---|---|---|
| 1. Requirement review | Reviews the product's use, key performance requirement and any existing sample or drawing; checks whether existing equipment can make it | An initial feasibility assessment |
| 2. Material and process proposal | Selects a starting material or composite structure and plans the processing route; explains known performance trade-offs upfront | A proposed material, structure and processing route, including whether any tooling is needed |
| 3. In-house sampling and testing | Produces samples and tests key properties such as flow rate, fines retention and seal strength under simulated use conditions | Samples, with a note on what each sample can confirm; test data available on request |
| 4. Customer trial | Reviews your trial results to pinpoint what needs to change | A clear adjustment plan |
| 5. Adjustment and re-sampling | Adjusts material, structure or process parameters and re-validates them rather than carrying over previous settings | Revised samples |
| 6. Transfer to mass production | Documents the validated process parameters as the basis for mass production | The product specification and validated process parameter record |
From Approved Sample to Consistent Production
An approved sample is only useful if production can repeat it. But how a sample is made affects how closely it represents production. Hand-made samples produced before tooling is ready, or products that involve processes handled by partner suppliers, may differ from production units. Before sampling, we explain what each sample can and can't confirm. For in-house processes, here's how we keep production consistent:
- The same equipment from sampling to production. In-house trial runs and mass production use the same machines, and validated process parameters are documented as the basis for production.
- Materials verified by performance, not just by spec. Materials with the same basis weight, thickness or nominal specification can still perform differently depending on supplier and lot, and performance can shift again after lamination, forming or other processing. For performance-sensitive products, we compare functional performance on incoming material and after processing, not just dimensions and physical properties. That's also why, even when a re-sample uses the same material from the same supplier, we re-validate the process parameters rather than assume they still hold.
- In-house filtration testing. Our TSI 8130-series filter tester measures filtration efficiency, penetration and pressure drop under set flow conditions. We use it well beyond mask materials: for incoming material checks, sample comparisons and verifying how performance changes before and after processing.
- Medical-grade quality systems. Yi-Ting is certified to ISO 9001:2015 and ISO 13485:2016. The documentation, traceability, nonconformance handling and process control practices built for medical device manufacturing are applied across our food filtration, packaging and other product lines. For food contact materials, we run annual in-house spot checks and third-party blind testing, and have supported customers in Taiwan, Japan, the US and Europe with food contact and packaging testing for their target markets. Specific regulations and test items are confirmed case by case, based on product, material and destination market.
Applications We Develop
Nonwovens are used across a remarkably wide range of industries, as these 13 nonwoven fabric examples show. Our development work covers three main areas:
- Food contact: coffee filters in V, T, wave, round and siphon shapes, drip bag coffee filters, heat-sealed flat coffee filter bags, tea bags, soup and spice bags, oil-absorbing cloths for soups and steamer cloths. In response to demand from food service customers, we also offer commercial fryer oil filter paper from a specialist Japanese paper mill. We also supply food-grade nonwovens, including PLA from our sustainable nonwoven range. More than 80% of the empty tea bags sold in Taiwan's retail stores are made by Yi-Ting. If you're also evaluating tea packaging materials, the same development process applies.
- Medical: flat, 3D, children's and custom medical masks, backed by medical-grade manufacturing experience since 2020.
- Lifestyle, industrial and agricultural: air filters and range hood filters, sink strainer bags, nonwoven tote bags, premium apparel packaging, hotel amenities, fruit protection bags, biodegradable agricultural ties, and waterproof, breathable synthetic paper.
FAQ: Nonwoven OEM Sampling
How long does it take from first inquiry to approved sample?
It depends mainly on the complexity of the product and how quickly trial feedback goes back and forth. For product types Yi-Ting already manufactures, with specifications within our current process capabilities, sample approval typically takes a few weeks. New applications and untried composite structures take longer. After the initial assessment, we give you a timeline for your specific project rather than a generic estimate.
What is the minimum quantity for a sampling run?
For core products such as coffee filter bags and products of similar size, trial runs start from a few hundred pieces. Because many products can be made with our existing equipment and tooling, there's often no mold cost to spread across a large first order. Products outside our current range are assessed case by case.
Can I start without a full specification?
Yes. An idea, a photo or a current sample is enough to begin. We'll work through material, process and manufacturing feasibility with you.
Can you replicate my existing product exactly?
The material won't be identical, since raw material sources and process conditions differ between manufacturers. The goal is to match or improve on how your product performs: flow rate, seal strength, structural stability in use. If the existing structure isn't the most efficient way to get there, we'll propose an alternative. Before the first sample is made, we'll tell you what we expect to achieve and where the limits are likely to be.
Will production units be exactly the same as the sample?
For products made on our in-house equipment, production follows the process parameters validated on the approved sample. Hand-made samples produced before tooling is ready, and products involving processes handled by partner suppliers, may differ from production units. We'll explain this before sampling and go over anything to be aware of before production starts.
Will I need to pay for a mold?
Often not. Many products can be made by combining our existing equipment and tooling. If a dedicated mold is needed, we'll walk you through the options and when each makes sense before you decide.
What documents do I receive after sample approval?
Along with the product specification, you receive the validated process parameter record. It covers the seal temperature range, dwell time, web tension settings, applicable inspection criteria and the material lot number used for the approved sample. Production is then verified against the actual conditions of the approved sample, not just the wording of a spec sheet.
Start Your Nonwoven OEM Project
You don't need to know which material to use or have a full specification. Tell us how the product will be used and what it needs to achieve, or send us a current sample, and we'll start from material, process and manufacturing feasibility.
- I have a product idea. Tell us where it will be used and what problem it needs to solve.
- I have an existing product or sample. Looking for an alternative material, a lower cost or a second source? We'll review it with you and look for a better option.
- I have a clear specification. Already have drawings, material specs or details of your current equipment? We'll move straight to material selection, process planning, sampling and production assessment.
Next step: Send us your requirements. You can attach a spec sheet, a drawing or photos of your current product. Contact us today!
