Thermoplastic Polyurethane Powder UT-1290
United UT-1290 is an aliphatic polyester-based thermoplastic polyurethane hot melt adhesive powder, specially developed for applications where yellowing resistance is critical. Unlike conventional aromatic TPU grades, the aliphatic chemistry of UT-1290 keeps white and light-coloured transfers looking clean after repeated washing and long exposure to sunlight. With a low melting range of 105–130°C and a soft, flexible bond line, it delivers strong adhesion to PVC, PU, woven and knitted fabrics, and genuine leather, with better color fastness than standard grades. UT-1290 is the grade of choice for premium screen heat transfer printing on high-quality and elastic products: white logos on sportswear, light-coloured fashion prints, and any design where yellowing would be immediately visible.
Key Features
- Aliphatic TPU base — outstanding yellowing resistance — stays white on white: no yellow shift after washing, sunlight or long storage
- Better color fastness — designed for white, pastel and light-coloured fabrics where discoloration is unacceptable
- Low melting range (105–130°C) — gentle pressing that protects elastic and delicate substrates
- Soft grade with flexible bond line — preserves the stretch and hand feel of high-elasticity garments
- Strong adhesion to PVC, PU, fabric and genuine leather — same substrate coverage as the UT-1007 workhorse grade
- Four particle-size grades (0-80 / 80-180 / 100-300 / 200-500 µm) — matched to screen mesh, powder-scatter lines and required dot weight
Technical Specifications
| Property | Value |
|---|---|
| Material | Aliphatic polyester-based thermoplastic polyurethane |
| Character | White powder |
| Flow beginning temperature | 100°C |
| Melting range | 105-130°C |
| Density | 1.2 g/cm3 |
| MFR (150°C, 2.16 kg) | 20 g/10 min |
| Particle size | 0-80, 80-180, 100-300, 200-500 µm |
| Packaging | 1 kg / 2 kg / 5 kg aluminum-plastic bags, or 20 kg paper bags |
Other particle-size distributions and packaging formats can be supplied on request.
Applications: Where Yellowing Resistance Matters
UT-1290 is specified wherever a transfer must stay visually pure over time. In white and light-coloured sportswear, it keeps large-area logos and numbers bright after dozens of wash cycles. In fashion and premium apparel, it carries pastel and light-grey designs on elastic fabrics without the dull yellow cast that aromatic TPU powders develop. It is equally suitable for baby and children’s clothing, where light colours and strict appearance standards are the norm, and for white PU and leather goods — shoe decorations, bag panels and badges — where any yellowing would reject the product. Because it is a powder for screen heat transfer printing, UT-1290 drops into the same powder-scatter and pressing workflows as standard grades: no new equipment, just a cleaner result.
Why Choose Us
Shanghai United Industry Co., Ltd, founded in 2017, is a specialized manufacturer and exporter of hot melt adhesives — powders, films and polyamide grades — supplying customers worldwide. Every batch of UT-1290 passes in-house checks for melt flow and particle-size distribution before shipment, so what you approve in sampling is what you receive in bulk production. We provide free technical consultation on pressing temperature, dwell time and mesh selection, and support each customer from first sample through mass production. Export packing in moisture-proof bags and flexible order quantities make us an easy partner for both trading companies and end users.
Frequently Asked Questions
Why is UT-1290 more resistant to yellowing than standard TPU powders?
UT-1290 is based on aliphatic polyurethane chemistry. Aromatic TPU grades contain structures that break down under UV light and heat, producing the typical yellow shift; the aliphatic structure of UT-1290 does not, so white and light-coloured transfers keep their original appearance far longer.
Is UT-1290 suitable for white logos on sportswear?
Yes — this is exactly the application it was developed for. White and light-coloured transfers on elastic sportswear fabrics are its main use, combining yellowing resistance with a soft, stretchable bond.
What is the minimum order quantity (MOQ)?
There is no fixed MOQ — order quantities are discussed according to your needs. Trial orders and small test batches are welcome; contact us with your target application and annual volume for a proposal.
Can I get a sample for testing?
Yes. Tell us your substrate, process and required particle-size grade, and we will arrange a sample for quality testing. Sample quantity and courier arrangements are confirmed by email before dispatch.
How is the product packed and shipped?
Standard packing is 1 kg, 2 kg or 5 kg aluminum-plastic bags, or 20 kg paper bags. Goods are shipped worldwide from China by air or sea freight, with moisture-proof export packing on request.
Do your products meet quality or certification requirements?
Our products can be tested and certified according to customer requirements, for example SGS test reports on key parameters including color fastness. Please specify the standard or test items you need when enquiring.
