Polyurethane Resins for Printing Inks
Uniform Synthetics is a polyurethane resin manufacturer in India, producing Unikopak film-forming and plasticising grades for flexographic, gravure, flexible-packaging and laminating inks.
Grades
4 grades| Grade | Range | Type | Solid % | Solvent | Colour (Gardner) | Viscosity @25°C | Applications | TDS |
|---|---|---|---|---|---|---|---|---|
| Unikopak 1224 Solution SolubilityEthyl acetate | Plasticising Polyurethane | Plasticizing | 70 | Ethyl acetate | 1 | 1,200–2,000 cP | Reverse-printing gravure inks · Laminating inks · Flexible packaging | Request |
| Unikopak 1235 Solution SolubilityEthyl acetate | Plasticising Polyurethane | Plasticizing | 70 | Ethyl acetate | 1 | 800–1,200 cP | Reverse-printing gravure inks · Laminating inks | Request |
| Unikopak 2230 Solution SolubilityEthyl acetate, IPA | Film-Forming Polyurethane | Film forming | 30 | Ethyl acetate / IPA | 1 | 800–1,800 cP | Food packaging inks | Request |
| Unikopak 2240 Solution SolubilityEthyl acetate, IPA | Film-Forming Polyurethane | Film forming | 40 | Ethyl acetate / IPA | 1 | 400–1,000 cP | Food packaging printing inks (indirect contact) · Flexible packaging | Request |
On phones, each grade is shown as a complete technical record.
Technical overview
Unikopak polyurethane resins support two distinct roles in printing inks. Unikopak 2230 and 2240 are film-forming grades, while Unikopak 1224 and 1235 are plasticising grades for reverse-print and laminating systems. They are evaluated in flexographic, gravure and flexible-packaging ink systems according to supplied solids, solvent, viscosity, film structure and adhesive, followed by testing through the complete print and conversion process.
Selection considerations
- Film-forming roleUnikopak 2230 and Unikopak 2240 are film-forming polyurethane grades.
- Plasticising roleUnikopak 1224 and Unikopak 1235 are plasticising grades for reverse-print and laminating inks.
- Ink-system validationAssess resin compatibility and film behaviour with the complete binder, substrate, adhesive and conversion process.
Polyurethane ink resins technical information
What is polyurethane resin used for in printing inks?
Polyurethane resin can act as a film-forming binder or a plasticising binder in printing inks. Our Unikopak range is used in flexographic, gravure, reverse-printing and laminating inks for flexible packaging. Select the grade around the solvent system, substrate, print orientation, laminating adhesive and required film properties.
What is the difference between film-forming and plasticising polyurethane resin?
Unikopak 2230 and 2240 are film-forming grades. Unikopak 1224 and 1235 are plasticising grades used to modify an ink system. Solids content, solvent composition and viscosity differ between grades, so compare them in the complete binder and ink formulation.
Which polyurethane resins can be evaluated for flexible-packaging inks?
Unikopak 2230 and 2240 can be evaluated as film-forming binders, and 1224 and 1235 as plasticising binders. Trials should account for film preparation, printing side, laminating adhesive, conversion conditions and the destination market’s requirements.
Does using polyurethane resin in food-packaging inks imply food-contact approval?
No. A resin grade does not automatically make a finished ink or package suitable for food contact. Suitability depends on the complete packaging structure, ink, barrier layers, adhesive and intended use. Review the current documentation and applicable requirements for the finished package.
Can Unikopak polyurethane resin be used in flexographic and gravure inks?
Yes. Unikopak grades can be evaluated in flexographic and gravure inks as film-forming or plasticising binders. Confirm solvent and binder compatibility, printing viscosity, adhesion, film performance and suitability for the subsequent conversion process.
Can Uniform Synthetics supply polyurethane ink resins outside India?
Yes. We manufacture Unikopak polyurethane resins in India and supply domestic and international customers. Share your application and destination so we can confirm the available grades, packaging, samples and technical documents.
What information is needed for a Unikopak trial sample?
Tell us the printing process, film and treatment, binder and solvent system, print orientation, laminate structure and adhesive. Include whether you need a film-forming or plasticising binder and the properties you plan to test. This helps us suggest grades for laboratory and press trials.