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 is evaluated as a film-forming binder or a plasticising component in solvent-based printing inks. The Unikopak range serves flexographic, gravure, reverse-print, laminating and flexible-packaging ink trials. The correct role and grade depend on the primary binder system, solvent, substrate, print orientation, laminate construction, adhesive and required finished-film performance.
What is the difference between film-forming and plasticising polyurethane resin?
A film-forming polyurethane resin contributes to the primary ink film; Unikopak 2230 and 2240 are the current film-forming grades. Unikopak 1224 and 1235 are plasticising polyurethanes evaluated as modifying components in reverse-print and laminating inks. Supplied solids, solvent and viscosity differ, and each grade must be tested in the complete binder and laminate construction.
Which polyurethane resins are used for flexible-packaging ink trials?
Unikopak 2230 and 2240 are film-forming grades used in food-packaging or flexible-packaging ink trials, while Unikopak 1224 and 1235 are plasticising grades for reverse-print and laminating systems. Film, print side, adhesive, conversion conditions and destination-market requirements must be reviewed before a formulation is adopted.
Does a polyurethane resin for food packaging inks imply food-contact approval?
No. The application wording identifies a formulation trial context; it does not by itself establish food-contact approval for a grade or finished ink. Suitability depends on the exact resin, complete ink, packaging structure, print orientation, barrier, adhesive, end use and applicable destination-market requirements. Current documentation should be reviewed for the selected grade and application.
Can Unikopak polyurethane resin be used in flexographic and gravure inks?
The Unikopak range is evaluated in solvent-based flexographic and gravure ink systems, including reverse-print and laminating applications. Grade selection depends on whether a film-forming or plasticising role is required, followed by checks for solvent compatibility, viscosity, substrate adhesion, film properties and downstream conversion performance.
Does Uniform Synthetics serve as a polyurethane resin supplier outside India?
Yes. Uniform Synthetics supplies Unikopak polyurethane resin grades from India to domestic and established international markets. As the manufacturer and supplier of the listed grades, the company can confirm availability, packaging, samples and current product documents for the intended destination and ink-system trial.
What information is needed for a Unikopak trial sample?
Provide the print process, film, treatment level, primary binder, solvent blend, print orientation, laminate structure, adhesive and required tests. Confirm whether the resin is intended as the film former or a plasticising component. This allows the technical team to identify a relevant Unikopak grade and current product document for laboratory and press evaluation.