Business Description

Nanofiber Business

Contract Manufacturing of Nanofibers

Contract Manufacturing of Nanofibers

Technical Fine provides contract manufacturing of high-performance nanofibers using its proprietary "e-AFD and AFD methods." We produce nanofibers based on the resin and specifications specified by the customer, under optimal conditions. We cater to diverse industries such as healthcare, filtration, and energy. Before starting contract manufacturing, the development of nanofiber sheets and polymers (resin dissolution liquids) intended for mass production is required.

Contract Manufacturing of Nanofibers

Development of Nanofiber Sheets and Polymers (Resin Dissolution Liquids) for Mass Production

Development of Nanofiber Sheets and Polymers (Resin Dissolution Liquids) for Mass Production

Based on customer needs, we develop nanofiber sheets and dedicated polymers (resin dissolution liquids) for mass production. Through material development optimized for our proprietary "e-AFD and AFD methods," we precisely control fiber diameter and morphology to achieve high-performance nanofiber products. We offer quick responses, with development periods ranging from 3 days to 2 months. We strongly support your product development.

Development of Nanofiber Sheets and Polymers (Resin Dissolution Liquids) for Mass Production

Development of Nanofiber Production Equipment

Development of Nanofiber Production Equipment

We develop high-performance nanofiber production equipment using our proprietary "e-AFD and AFD methods." The equipment operates at room temperature and pressure, offering energy-efficient and environmentally friendly solutions. With excellent fiber diameter control, it enables stable production of nanofibers tailored to specific purposes. We also offer customization to meet the unique needs of our customers.

Development of Nanofiber Production Equipment

Production of Nanofiber Sheets

Production of Nanofiber Sheets

At Technical Fine, we manufacture nanofiber sheets optimized for experimental use, utilizing common resins. The sheets are available in A4 size, with thicknesses ranging from 1μm to 100μm (custom orders exceeding 200μm may also be possible). We accept orders starting from as few as five sheets. Please consider utilizing our products for your research and development or experimental needs. For more details, feel free to contact us.

Production of Nanofiber Sheets

About Our Equipment

Equipment Configuration

Our equipment consists of a nanofiber generation section, a nanofiber collection section, and an exhaust recovery section. The nanofibers and organic solvents generated in the nanofiber generation section are carefully contained by maintaining a negative pressure in the delivery system through the exhaust recovery section, ensuring that they do not leak into the external environment.

Nanofiber Generation Section

Nanofiber Generation Section

Nanofiber Collection Section

Nanofiber Collection Section

Exhaust Recovery Section

Exhaust Recovery Section

Nanofiber Generation Section

We dissolve resin in an organic solvent and, using our proprietary e‑AFD and AFD methods, extrude the polymer in fiber form. By combining fiber extrusion, conveyance, and drying in a single step, we efficiently produce high-performance nanofibers.

To prevent explosion risks, the solvent‑laden exhaust is diluted with fresh air via exhaust‑system fans to keep solvent concentration below 2,000 ppm.

This diluted exhaust stream is directed toward the nanofiber collection chamber for controlled dispersion.”

Spray Section

Spray Section

Nanofiber Collection Section

In the nanofiber collection section, two types of collection methods are available: wind collection and electrode collection.

Air containing organic solvents moves toward the exhaust recovery section.

Collection Section

Collection Section

Solvent Exhaust Recovery Section

The fan and scrubber function to maintain a negative pressure inside the nanofiber generation section and the nanofiber collection section.

In the solvent exhaust recovery section, air containing organic solvents and nanofibers is collected by being struck with water.

*Please note that this recovery section is part of the equipment and is not designed to meet VOC environmental standards. Customers will need to carry out treatment according to their own company regulations or site-specific regulations.

Local Exhaust System

Local Exhaust System

Manufacturing Equipment Specifications

Production Capacity Up to 5,000 nozzles per unit
Applicable Polymers [All Polymers Compatible with Electrospinning] 1.PU 2.PVDF 3.PVA 4.PEO(PEG) 5.Nylon 6.PAN 7.PLA
8.PEI 9.PAI 10.PPE 11.PVB 12.PES 13.Polyarylate
14.Natural rubber 15.PMMA
Applicable Solvents [All Organic Solvents] 1.DMF 2.DMAC 3.NMP 4.DMSO 5.Ethanol 6.IPA 7.Purified water 8.Toluene 9.Ethyl acetate 10.Butyl acetate 11.Chloroform 12.Cyclohexanone
Sheet Size Maximum sheet width: 100 cm.
Automatic Polymer Supply Available containers range from 5 mg syringes to 20‑litre tanks.
Machine Switching Time Within an average of 30 minutes
Maintenance Nozzle unit section: easy
Coating on 3D surfaces Possible
Nanoparticle coating Possible
Roll-to-roll compatibility Possible: Width 100 cm
Compatibility with thick films Depending on the properties of the resin used
High voltage 0KV to 30KV
Power consumption 100W excluding generation condition management exhaust equipment, humidity and temperature control equipment, air conditioners, etc
Safety Absolutely explosion-proof structure

Customizable product specifications

Can be combined with various materials. The base material for attaching nanofibers can be chosen based on the application. For example, for masks, a soft nonwoven fabric is selected, and for filters, a durable material is chosen. The optimal material is selected according to the intended use of the final product.

Manufacturing Methods: Two options to choose from

There are two manufacturing methods: the "Sheet Method," where each piece is carefully made, and the "Roll-to-Roll Method," where production is continuous like a long fabric. For example, high-end masks can be produced using the sheet method with detailed quality control, while mass-produced industrial filters can be efficiently produced using the roll-to-roll method.

Fiber Thickness: Can be adjusted to less than 1/1000th the thickness of a human hair

Nanofibers can be made as thin as 1/1000th the thickness of a human hair (about 100 micrometers), which is an astonishing level of thinness. This thickness can be adjusted depending on the application. For example, to capture finer particles, the fibers can be made thinner, while for applications requiring strength, the fibers can be made slightly thicker.

Thickness and Weight: Adjustable to a weight lighter than a single sheet of paper

The weight can be adjusted from as light as 0.1 grams (lighter than a single sheet of paper) to up to 2 grams. For example, disposable masks can be made light and thin, while industrial filters can be made slightly thicker to prioritize durability, allowing for the optimization of weight based on the specific application

Size: Standard width up to 1 meter

We can manufacture up to a standard width of 1 meter, which is sufficient for both the production of typical clothing and industrial filters. For example, with this width, we can produce several dozen masks or one full set of protective clothing at a time.

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All of these features can be adjusted to match the customer's desired final product. For instance, if you want to make medical masks, we can help create an ideal product by selecting extremely fine fibers, light weight, and soft materials to suit your needs.