Flexographic inks
Unitone ketonic resins, Unimide polyamides, Unikopak polyurethanes and AP-X serve flexographic ink formulations.
Printing ink resins
Uniform Synthetics is a printing ink resin manufacturer in India with 23 grades across polyamide, polyurethane, ketonic, phenolic, rosin ester, PVB and amino chemistries.
Ketonic Resin
Unitone cyclohexanone-aldehyde resins for flexographic, gravure, screen and selected ballpoint ink formulations.
| Grade | Melting Point | Viscosity | Uses | TDS |
|---|---|---|---|---|
| Unitone US 100 Pearl-shaped transparent granules SolubilityCompatible with ethyl acetate, IPA, aromatic and alcohol solvent blends | 85–95 °C | 18–20 sec (FCB4 @30°C, 50%) | Flexographic and gravure inks, Lacquers and NC-based coatings, Screen inks | Request |
| Unitone US 110 Pearl-shaped transparent granules | 90–98 °C | 18–20 sec (FCB4 @30°C, 50%) | Flexographic and gravure inks, Lacquers, Screen inks | Request |
| Unitone US 500 Lump form, pale yellow | 90–100 °C | 20–22 sec (FCB4 @30°C, 50%) | Ballpoint inks, Lacquers, Printing inks | Request |
Co-Solvent Polyamide
Unimide dimer-fatty-acid polyamides for flexographic and gravure ink systems based on toluene, butanol and IPA blends.
| Grade | Viscosity | Softening Point | Acid Value | Amine Value | Uses | TDS |
|---|---|---|---|---|---|---|
| Unimide US 40 Yellowish beads SolubilityToluene : Butanol (2:1), compatible with IPA | 30–50 sec (FCB4 @30°C, 40% Tol:But 2:1) | 110–120 | 7 | 7 | Flexo and gravure inks, High-gloss liquid inks | Request |
| Unimide US-50 Bright yellowish beads SolubilityToluene : Butanol : IPA blends | 45–55 sec (FCB4 @30°C, 40% Tol:But:IPA) | 110–120 | 7 | 7 | Flexo and gravure inks, Thixotropic paints | Request |
| Unimide US-60 Bright yellowish beads SolubilityToluene : Butanol : IPA blends | 50–60 sec (FCB4 @30°C, 40% Tol:But:IPA) | 110–120 | 7 | 7 | Flexo and gravure inks, Thixotropic paints | Request |
| Unimide US-80 Bright yellowish beads SolubilityCo-solvent (Toluene : Butanol blends) | 70–80 sec (FCB4 @30°C, 40% Tol:But 2:1) | 110–120 | 7 | 7 | Flexographic and gravure inks, Thixotropic paints | Request |
Alcohol-Soluble Polyamide
Ethanol or IPA-soluble Unimide polyamides for flexographic and gravure inks, over-print varnishes and selected packaging-ink systems.
| Grade | Viscosity | Softening Point | Acid Value | Amine Value | Uses | TDS |
|---|---|---|---|---|---|---|
| Unimide US 30 Yellowish beads SolubilityIPA-based blends | 25–35 sec (FCB4 @30°C, 50% IPA) | 105–115 | 7 | 7 | Flexo and gravure inks | Request |
| Unimide US 7910 Yellowish beads SolubilityIPA | 20–25 sec (FCB4 @30°C, 50% IPA) | 105–115 | 7 | 7 | Flexo and gravure inks, Over-print varnish, NC ink hardness and resistance booster | Request |
| Unimide US-25 Yellowish beads SolubilityFully soluble in ethanol | 20–22 sec (FCB4 @30°C, 50% Ethanol) | 105–115 | 7 | 7 | Alcohol-based inks, Food and milk packaging printing | Request |
Polyamide for Untreated Surfaces
Unimide US 77 for flexographic and gravure ink trials on untreated HDPE and LDPE surfaces.
| Grade | Viscosity | Softening Point | Amine / Acid | Uses | TDS |
|---|---|---|---|---|---|
| Unimide US 77 Brown bead shape SolubilityAlcohol / co-solvent | 25–35 sec (FCB4 @30°C, 50% IPA) | 105–115 | >7 / >7 | Flexo and gravure inks on HDPE/LDPE, Difficult-substrate ink systems | Request |
Film Forming Polyurethane
Unikopak film-forming polyurethane grades for flexible-packaging and reverse-print ink trials. Regulatory suitability depends on the pack structure, end use and destination market.
| Grade | Type | Solid % | Solvent | Colour (Gardner) | Viscosity @25°C | Uses | TDS |
|---|---|---|---|---|---|---|---|
| Unikopak 2230 Solution SolubilityEthyl acetate, IPA | Film forming | 30 | Ethyl acetate / IPA | 1 | 800–1,800 cP | Food packaging inks | Request |
| Unikopak 2240 Solution SolubilityEthyl acetate, IPA | Film forming | 40 | Ethyl acetate / IPA | 1 | 400–1,000 cP | Food packaging printing inks (indirect contact), Flexible packaging | Request |
Plasticizing Polyurethane
Unikopak plasticising polyurethane grades for reverse-print gravure and laminating inks.
| Grade | Type | Solid % | Solvent | Colour (Gardner) | Viscosity @25°C | Uses | TDS |
|---|---|---|---|---|---|---|---|
| Unikopak 1224 Solution SolubilityEthyl acetate | Plasticizing | 70 | Ethyl acetate | 1 | 1,200–2,000 cP | Reverse-printing gravure inks, Laminating inks, Flexible packaging | Request |
| Unikopak 1235 Solution SolubilityEthyl acetate | Plasticizing | 70 | Ethyl acetate | 1 | 800–1,200 cP | Reverse-printing gravure inks, Laminating inks | Request |
Rosin Modified Phenolic
PR-140 and PR-142 for over-print varnishes, lithographic and letterpress inks, primers and paints.
| Grade | Melting Point | Acid Value | Viscosity | Heptane Value | Uses | TDS |
|---|---|---|---|---|---|---|
| PR-140 Flake / lump SolubilityAromatic and aliphatic hydrocarbons, higher alcohols, ketones | 140–160 | 25 | 60–100 sec (FCB4 @30°C, 50% in Toluene) | 20 | Over-print varnishes, Lithographic inks, Letterpress inks, Hard-drying varnishes, primers and paints | Request |
| PR-142 Flake / lump SolubilityAromatic and aliphatic hydrocarbons, higher alcohols, ketones | 130–150 | 25 | ~75 sec (FCB4 @30°C, 50% Toluene) | 30 | Over-print varnishes, Lithographic and letterpress inks, Hard-drying varnishes, primers and paints | Request |
Pure Phenolic
Alcohol-soluble PR-75 for flexographic and gravure inks, road-marking paints, varnishes and lacquers. Low-temperature packaging uses require application and regulatory review.
| Grade | Melting Point | Acid Value | Viscosity | Uses | TDS |
|---|---|---|---|---|---|
| PR-75 Flake SolubilityAlcohol (IMS, ethanol) | 70–80 | Phenolic acidity | 20–30 sec (FCB4 @30°C, 50% IMS) | Alcohol-soluble inks, Deep-freeze flexo/gravure inks, Road-marking paints, Rust-prevention varnish and lacquers | Request |
Rosin Ester for Inks
UMaleic SS-series rosin esters for printing inks, over-print varnishes and selected water-based ink systems.
| Grade | Softening Point | Acid Value | Viscosity | Uses | TDS |
|---|---|---|---|---|---|
| UMaleic SS 35 Flakes SolubilityAlcohols, IPA, butanol | 120–130 °C | 140–150 | 20–24 sec (FCB4 @30°C, 50%) | Printing inks, Over-print varnish (OPV), Water-based inks | Request |
| UMaleic SS 210 Flakes SolubilityAlcohols, IPA, butanol | 140–160 °C | 200–220 | 20–22 sec (FCB4 @30°C, 50%) | Printing inks, Shoe polish, Over-print varnish, Water-based inks | Request |
Polyvinyl Butyral
Unipol B-30 is used in formulation trials for ceramics, adhesives, lamination, printed circuit boards and laminated-glass processes. Glass applications require process-specific technical review and do not constitute a safety-glass approval.
| Grade | Butyral Value | Bulk Density | Viscosity | Uses | TDS |
|---|---|---|---|---|---|
| Unipol B-30 Powder SolubilityAlcohol (IMS) | 802 | 220–320 g/L | 130–160 sec (FCB4 @30°C, 20% IMS) | Ceramics binder, Adhesives, Lamination and coatings, Printed circuit boards, Laminated safety glass | Request |
Amino / MF
Unimine MF 501 is a butylated melamine-formaldehyde crosslinker for stoving paints and OEM finishes.
| Grade | Solid % | Colour (Gardner) | Viscosity | Uses | TDS |
|---|---|---|---|---|---|
| Unimine MF 501 Solution | 65 ±2 | 1 max | 15–20 sec @25°C | Stoving paints, OEM finishes | Request |
Adhesion Promoter
Titanium-chelate AP-X for flexographic, gravure, NC, PU and reverse-printing ink formulations.
| Grade | Titanium Content | Colour (Gardner) | Solvent | Uses | TDS |
|---|---|---|---|---|---|
| AP-X Liquid SolubilityIPA, butanol | 8.4–8.9% | 1 max (water white) | IPA / Butanol | Flexographic and gravure inks, NC and PU inks, Reverse-printing inks | Request |
Printing ink resin range
The catalogue covers solid Unimide polyamides, Unikopak polyurethanes, Unitone ketonics, PR phenolics, UMaleic rosin esters, Unipol PVB, Unimine amino resin and the AP-X adhesion promoter. Each chemistry has a distinct role, so selection should begin with the print process, binder system, solvent, substrate and downstream conversion requirements.
Applications for printing ink resins
Gravure inks
Unimide US polyamides and Unikopak 1224 or 1235 serve gravure and reverse-printing ink systems.
Lithographic and letterpress inks
Rosin-modified phenolic PR-140 and PR-142 serve lithographic, letterpress and over-print varnish applications.
Flexible packaging inks
Unikopak polyurethane and selected Unimide polyamide grades support flexible-packaging and reverse-print inks. Regulatory suitability must be confirmed for the intended pack, structure and destination market.
Lamination and reverse printing
Plasticising polyurethane grades Unikopak 1224 and 1235 serve laminating and reverse-printing inks; AP-X acts as an adhesion promoter in compatible reverse-print systems.
Specialty ink uses
Unitone US 500 serves ballpoint inks, PR-75 is used in road-marking paints and UMaleic SS 210 is used in shoe-polish formulations.
Printing ink resin guidance
Which resin families are used in flexographic and gravure inks?
The current range includes Unimide polyamides, Unikopak polyurethanes and Unitone ketonic resins for flexographic and gravure ink trials. Rosin ester, phenolic, PVB and amino grades serve more specific formulation roles, while AP-X is an adhesion promoter. The print process alone does not determine the resin; solvent, film, print orientation and end use must also be considered.
Are solid polyamide ink resins the same as liquid polyamide epoxy hardeners?
No. The solid Unimide grades in the printing-ink range are binders for solvent-based inks. Liquid Unimide polyamides are reactive curing agents for two-component epoxy systems and are covered on a separate product page. Keeping these ranges separate prevents a binder for flexographic or gravure ink from being confused with an epoxy hardener.
Which resins are relevant to flexible-packaging inks?
Selected Unikopak polyurethane and Unimide polyamide grades are used in flexible-packaging, reverse-print and laminating ink trials. Film-forming and plasticising polyurethane grades have different roles, and the selected resin must be evaluated with the actual film, solvent package, print orientation, adhesive and conversion process. Regulatory suitability must be confirmed for the intended pack and market.
Can Uniform Synthetics help compare printing ink resin grades?
Yes. A useful technical brief identifies the print method, substrate and treatment level, primary binder, solvent blend, pigment, print orientation, laminate construction and required tests. The team can then identify suitable grade tables, current product documents and sample options. Laboratory and press trials remain necessary before a grade is adopted commercially.
Can printing ink resins be supplied from India to international customers?
Uniform Synthetics supplies printing ink resin grades from India to domestic and established international markets. As the supplier of the selected grade, the company can confirm packaging, availability, samples and current product documents for the destination. The exact grade and supply position are agreed against the formulation requirement and order details.
Printing ink resin support
Tell us about the print process, substrate, solvent system and converting conditions, and our team can suggest resins for laboratory trials.