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Flexographic printing of self-adhesive labels on an MPS press at Štamparija RP
Technology and Production

How Your Labels
Are Made

From technical prepress and printing plate production, through roll-to-roll flexographic printing in up to 9 colors with UV protective varnish, to finishing, quality control, and packing, every step in the process is designed to deliver a consistent label ready for your production line.

8 Technologies
up to 9 colors + UV Varnish
5.5 million m² Per Year
Prepress
Printing
Finishing
Inspection
Shipping
The Production Process Step by Step

The Technologies Behind Your Labels

Pillar Roll-to-roll flexographic printing of self-adhesive labels
01 Printing Technique

Flexographic Label Printing

Flexible roll-to-roll printing, economical for medium and large runs, with up to 9 colors and UV protective varnish in a single pass.

Up to 9 Colors Roll-to-Roll UV Varnish
Printing in Up to 9 Colors Plus UV Protective VarnishFlexography, a relief printing technique, uses photopolymer plates on flexible cylinders. Ink transfers from the anilox roller's cells to the plate and then to the material. Up to 9 colors and a protective UV varnish can be applied in a single pass.
Suitable for Paper and Synthetic MaterialsUnlike offset printing, flexography prints excellently on non-absorbent substrates: PP, PE, PET, and metallized films. This allows the packaging and the label to be made of the same material for direct recycling, for example PET packaging with a PET label.
Economical for Large Print RunsUnit cost decreases with print run size. For mass-consumption products, from food and beverages to chemicals and cosmetics, flexography is the most cost-effective technique. Print quality has approached that of offset thanks to modern plates and the iControl system for automatic register control.
Six Printing Lines Running in Parallel2 MPS EF 340 presses, 3 MPS EF 330 presses, and a Gallus 3000, six machines that can run simultaneously. Maximum print width of 340 mm (MPS EF 340), with an annual capacity of 5,500,000 m².
Flexographic printing has been the core technique of Štamparija RP's entire production since 1989.
Pillar Self-adhesive label materials: paper, PP, PE, and PET
02 Materials

Materials and Adhesives

The choice of material and adhesive determines the label's performance under real-world conditions: moisture, temperature, chemicals, UV exposure.

PP / PE / PET Paper Adhesives
Paper MaterialsMatte, semi-gloss, and gloss papers for standard industrial labels. Thermal eco and thermal top papers for direct thermal printing on scales, POS systems, and logistics applications.
Synthetic MaterialsPP (polypropylene) for waterproof labels, PE (polyethylene) for flexible surfaces, PET (polyester) for chemical and thermal resistance, and PVC for special applications. Transparent variants are available for no-label-look labels.
Adhesive TypesStandard permanent adhesive, an enhanced version for wet and greasy surfaces, an adhesive for cold and frozen products (adhesion down to -25°C), a removable adhesive for promotional labels, and specialized adhesives for demanding industrial applications.
Certified SuppliersWe source materials from leading European manufacturers: Raflatac (Finland), Fasson (Germany), Tores (Spain), and Intercoat (Germany). FSC™-certified papers are available for environmentally responsible labels.
Choosing the wrong material or adhesive is the most common cause of label problems on a product. Consult us before placing your order.
Prepress studio for technical preparation of flexographic printing
03 Preparation

Prepress and Technical Preparation

From the design file to the printing plate, every job goes through a technical review before printing.

Star Proof ERP System Printing Plates
ERP System for Process TrackingA complete software solution for managing orders, production, and delivery. Fast order confirmation, recordkeeping, transport, and complete customer and product information in a single system.
Star Proof, a Contract ProofA high-quality proof produced on an inkjet printer with the Actual Dot system, which replicates the original design. Sharp image, precisely defined color and detail, matching the final print. The customer approves the proof before production begins.
Technical Review Before PrintingEvery design is checked for compatibility with flexographic printing: resolution, color separation, trapping, line thickness, and barcode legibility. We advise customers on the specifics and capabilities of our printing process.
Label finishing: varnishing, hot foil stamping, and embossing
04 Finishing

Finishing and Surface Treatment

UV varnishing, hot foil stamping, embossing, lamination, and perforation, all in a single production flow.

Embossing Hot Foil Stamping UV Varnish
UV Varnishing: Matte, Gloss, and SpotA protective varnish applied and cured with UV lamps during printing. Matte varnish gives an elegant, refined look, gloss varnish intensifies colors, and spot varnish selectively highlights individual design elements.
Hot Foil StampingMetallic foil in gold, silver, and other colors is applied using heat and pressure. Available as inline finishing on the printing press or as a separate station. Used for premium labels in cosmetics, wines, and luxury products.
Embossing on the Frankini DMRThe Frankini DIE ROLL DMR machine produces three-dimensional textures on the label. This includes tactile hazard markings for the chemical industry per EN ISO 11683, as well as premium embossing for cosmetics and wines.
Lamination, Perforation, Die-CuttingLamination provides additional mechanical and chemical protection. Perforation is used for labels that need to be torn off. Die-cutting into complex shapes is done in a single pass on the printing press.
Roll-to-roll label production
05 Production Flow

Roll-to-Roll Production

Material goes in as a roll and comes out as a finished label ready for your labeling machine.

Converting Rewinding Laminating
Complete Production in a Single FlowPrinting, varnishing, die-cutting, perforation, and slitting all take place in a continuous roll-to-roll process. There are no manual interruptions and no intermediate stages. This is a key advantage of flexographic technology for self-adhesive labels.
Laminating for Multilayer ConstructionsThe roll-to-roll process allows multiple layers of material to be bonded into duplex and triplex constructions for multilayer peel-and-reveal labels. On the MPS EF 340 with the Cross-Over system, this is done inline without a separate operation.
Rewinding and ConvertingFinished labels are rewound on Rotoflex, Slitterflex, and DK-520 machines into a roll format matched to your equipment: the desired diameter, a 40 mm or 76 mm core, winding direction, labels per roll, and the gap between labels.
Quality control on the Rotoflex DSI-330 inspection machine
06 Quality

In-Process Quality Control

Consistent quality from the first label to the last, ISO 9001 certified processes, and 100% inspection.

ISO 9001 100% Inspection Rotoflex DSI-330
Inspection on the Rotoflex DSI-330Two Rotoflex DSI-330 machines with the URC 2.0 system and cameras for visual inspection. MMLD (Missing and Misplaced Label Detection) identifies missing and misaligned labels. Inspection speed up to 305 m/min.
Control Throughout ProductionColor, register, die-cutting, and barcode legibility are checked continuously during printing. A consistent print on the first and last label in the run is critical for mass-consumption products.
ISO 9001:2015 Certified ProcessesCertificate QS-0612 (StandCert) confirms that the entire quality management system complies with the international standard. Recertified in January 2025, valid through January 2028.
Multilayer peel-and-reveal labels from the MPS EF 340 Cross-Over system
07 Specialized Technique

Multilayer Constructions

The MPS EF 340 with its Cross-Over system for delamination and relamination: multilayer peel-and-reveal labels in a single pass.

MPS EF 340 Cross-Over Delam/Relam
Multilingual Declarations Without Multiple Packaging VersionsThe top layer carries the main design, while additional text underneath is revealed by peeling it back. This lets the same product cover multiple markets with a single SKU, which is essential for chemicals, agrochemicals, and export products with declarations in multiple languages.
Peel-and-Reveal, Two or Three LayersThe top layer is peeled back to reveal additional content underneath. Duplex (2-layer) or triplex (3-layer) constructions accommodate complex regulatory declarations, promotional content, or safety markings.
MPS EF 340 with the Cross-Over SystemServo drive, the Ultraflex Rail System for fast unit changeovers, iControl for automatic register control, and Crisp.Dot HD flexo technology. The Cross-Over module enables delamination and relamination, so both layers are printed and joined in a single pass without a separate operation.
The capability to produce multilayer peel-and-reveal labels is a key differentiator for Štamparija RP in the region.
Applying a self-adhesive label on a production line
08 Application

Label Application on the Customer's Line

The label has to work on your machine, so we adjust the core size, winding direction, gap, and roll format accordingly.

40/76 mm Core Winding Direction Machine Application
Adjusting the Core and Roll FormatStandard cores are 40 mm (inner diameter) for smaller applicators and 76 mm for industrial lines. We set the maximum roll diameter, labels per roll, and the gap between labels according to your equipment's specifications.
Winding DirectionLabels are wound in one of 8 standard directions depending on the position on your applicator. The wrong winding direction means a line stoppage, so we confirm this parameter before production.
From Semi-Automatic to Fully Automatic LinesOur labels work on small semi-automatic applicators as well as on high-speed industrial labeling lines. We select the material, adhesive, and roll format based on your line's speed and packaging type.
Send us your labeling machine's model and we'll adjust the delivery format at no extra cost.
Frequently Asked Questions

Everything You Need to Know About Producing Your Labels

Practical answers to the technical questions customers ask us most often, from choosing materials to delivery times.

Categories
Have a Technical Question?
Describe your product and its application conditions, and we'll recommend the optimal label.
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If you need more than 5,000 labels per order, flexo is almost certainly the more economical option. Unit cost drops with every additional meter, because the biggest cost is in preparing the printing plates. Once the plates are made, the printing process itself is extremely fast. Digital printing makes sense for small runs and frequent design changes, but for runs that repeat for months or years, flexo gets you a significantly lower cost per label.

On our MPS presses you can have up to 9 colors in a single pass, or 8 colors plus UV protective varnish. That covers Pantone spot colors, the CMYK process set, and special colors (a white base on transparent material, metallic ink). If your design calls for 4 process colors, one spot color, and UV varnish, that's 6 of the possible 9 units, leaving you room for an additional color or a special effect.

On the MPS EF 340, the maximum print width is 340 mm. The maximum label length is limited by the circumference of the printing cylinder: in practice, that's typically up to 400-500 mm depending on the configuration. For labels larger than these dimensions, consult us. There's sometimes a technical way to meet the requirement, for example by rotating the label on the web.

Each Pantone color is printed as a separate separation: a separate printing plate and a separate unit on the press. In your design file, each Pantone color should be defined as a spot color with the exact Pantone code (for example, Pantone 186 C). Don't convert Pantone colors to CMYK in the file; we handle that in prepress if needed. If you're using a combination of CMYK and spot colors, clearly mark which ones are spot colors. The total number of colors can't exceed 9, including any UV varnish.

Start from the conditions the label will face, not from how it should look. If your product goes into a freezer, you need a synthetic material with an adhesive that holds at -25°C. If it's a bottle that goes through a washing tunnel, a paper label is out. If transparency matters to you, a PP or PET film is the choice. Tell us where the label will be applied, on what kind of surface, and under what conditions. We'll recommend the optimal material and adhesive for your specific case.

There are three common reasons. First: the wrong adhesive type for your surface, since a standard adhesive won't hold on greasy, wet, or cold surfaces and you need an enhanced or specialized adhesive. Second: the label was applied to a cold surface. Most adhesives require application at a temperature above +10°C, even if the label later goes into a freezer. Third: the surface it's applied to is dirty, dusty, or contaminated with oil. Tell us the exact details of the problem. In most cases, the solution is changing the adhesive type, not the entire material.

Yes. We hold the ISO 22000:2018 certification in the CAT 1 category (certificate FS-0008), which confirms that our entire self-adhesive label printing process complies with food safety requirements. We source materials from certified European suppliers (Raflatac, Fasson, Tores, and Intercoat) whose products meet the requirements of the EU framework regulation EC 1935/2004 for materials that come into contact with food.

Yes, there are two ways. The first is printing on a metallized material: you use a silver foil as the base, then print color only where you want to cover the metallic shine. Where you don't print, the metallic surface stays visible. The second way is metallic ink: Pantone Silver or Gold applied as a separate color in one of the press units. Hot foil stamping gives the most intense metallic effect, but it costs more because it requires an additional operation.

Matte UV varnish gives the label an elegant, refined look with a soft feel. It's often used for premium products in cosmetics and wines. Gloss UV varnish intensifies colors and gives a vibrant, eye-catching look. Spot varnish combines both: it applies gloss varnish only to specific design elements (a logo, a product name) while the rest stays matte. This creates a contrast that draws attention, and the difference between varnished and unvarnished areas can be felt by touch.

Embossing is a three-dimensional texture pressed into the label, where parts of the design are physically raised or recessed. On the Frankini DIE ROLL DMR machine, we produce embossing that gives the label a tactile dimension the customer can feel with their fingers. It's used for two entirely different purposes: premium labels in cosmetics, wines, and luxury products, where the texture communicates quality, and mandatory tactile hazard markings (a raised triangle) for chemical products under the EU CLP regulation and the EN ISO 11683 standard.

Yes, a multilayer peel-and-reveal label is applied on your labeling line just like any standard roll label. The difference is in the construction: it has two or three layers, and the top layer can be peeled back and returned to its place. On the MPS EF 340 with the Cross-Over module, we produce these labels in a single pass: we print both layers, delaminate, assemble, and relaminate them. A finished multilayer label on the roll looks like a slightly thicker standard label. Your labeling machine applies it the same way; just watch the pressure setting, since the label is somewhat thicker.

That's exactly what multilayer peel-and-reveal labels are for. Instead of creating five or ten separate packaging variants for each market, a multilayer label carries an extra layer with text in multiple languages within a single construction: the top layer is lifted, the additional text is read underneath, and the layer is folded back down. A single SKU can then cover multiple markets. For products going to the EU market, the EU FIC regulation (1169/2011) requires food products to be labeled in the language of the country of sale. A multilayer construction lets you do this without changing the outer label's design.

We need three things. First, a design in vector format (AI, EPS, PDF) with fonts converted to outlines and colors defined as Pantone spot or CMYK. Second, the label specification: dimensions, material (or at least the application conditions so we can recommend one), quantity, core size (40 mm or 76 mm), and winding direction. Third, it helps to tell us which labeling machine you'll be applying the labels on, since that helps us adjust the roll format. If you don't have a design in vector format, our prepress team can prepare a file based on your material.

Printing plates are photopolymer plates made separately for each color. If your label has 6 colors, that's 6 plates. Plate production is part of prepress and is usually completed within one to two business days of proof approval. The plates stay with us and are used for all repeat orders of the same design, so you only incur this cost on the first order or when the design changes.

Yes. Before production begins, we produce a proof on the Star Proof system with Actual Dot technology, which faithfully shows how the final label will look: colors, sharpness, detail. If you need a physical trial batch on the actual material, we can run a smaller trial print on the same press that will run the full production, using the same materials and colors. This gives you complete confidence before starting the large run.

The price of a label depends on several factors: dimensions, material, number of colors, type of finishing (varnish, hot foil stamping, embossing, lamination), print run, and delivery format. The larger the run, the lower the cost per label, since fixed costs (printing plates, press setup) are spread across more units. That's why we can't give a universal price without a specification. Send us the dimensions, material, number of colors, desired quantity, and finishing, and we'll deliver a detailed quote within 24 hours.

That's exactly why the proof approval stage exists before printing. Star Proof with the Actual Dot system shows you exactly how the label will look: colors, resolution, barcodes, text. Your written approval of the proof is a condition for starting production. If an error occurs on our side (a deviation from the approved proof), we take responsibility and reprint at no charge. If the error was in the approved design, the new run is charged with a discount on the plates, since they've already been made.

Our annual capacity for processing self-adhesive material is about 5,500,000 m². With six printing presses running in parallel, we can respond even to urgent requests. Delivery time depends on the complexity of the job: standard industrial labels have a shorter turnaround, while multilayer constructions require more time due to additional preparation and inspection steps. Repeat orders have a shorter turnaround because the plates already exist. You'll receive the exact timeline with your quote.

Technical Consultation

Have a Project That Needs
a Specific Label?

Tell us about your product, the surface the label will be applied to, and the conditions it will face. We'll recommend the optimal material, adhesive, printing technique, and delivery format. No obligation, within 24 hours.

Quote within 24 hours Free proof before printing No-obligation material advice
6 Printing Lines in Parallel 2 MPS EF 340 presses, 3 MPS EF 330 presses, and a Gallus 3000: your delivery time doesn't depend on a single machine.
Multilayer Capability The MPS EF 340 with its Cross-Over system: multilayer peel-and-reveal labels produced in a single pass.
ISO 22000 for Food Safety Certificate CAT 1 (FS-0008): the entire printing process complies with food safety requirements.
Embossing, Hot Foil Stamping, and Premium Finishing The Frankini DIE ROLL DMR for embossing, hot foil for metallic effects, and UV varnishing in three finishes.
Your Path to a Label
1 You Send an Inquiry
2 Technical Review
3 Proof for Approval
4 Flexographic Printing
5 Inspection and Delivery