Packaging design

In short

Packaging design is the discipline of designing the container and its graphics together so that a product is protected, carried, legally declared, identified on a crowded shelf and disposed of responsibly. It sits at the join of structural (3D) design, graphic design, print technology and statutory labelling, so a visual communication graduate is judged both on concept and on whether the artwork can actually be printed and legally sold. In Indian universities it is examined through dieline construction, material and process comparisons, label-law questions and a studio portfolio; in placements it is tested by FMCG and pharma brands (ITC, Dabur, Marico, Amul, Parle, Patanjali, Himalaya, Cipla), their design agencies (Elephant, Landor, Lopez, DY Works, Vritti) and by converters and printers (TCPL, Huhtamaki, Uflex, Parksons, Manjushree, EPL — formerly Essel Propack). The compliance layer is Indian: the Legal Metrology (Packaged Commodities) Rules, 2011, the FSS (Labelling and Display) Regulations, 2020, and Extended Producer Responsibility under the Plastic Waste Management Rules.

Explained

What packaging must do, and its levels

• Four classic functions: *protect* (shock, crush, moisture, light, oxygen, pilferage), *contain and dispense* (fill, reclose, pour, dose), *inform* (contents, quantity, price, instructions, legal declarations) and *sell* (recognition, differentiation, desire).
• Primary packaging touches the product (tube, bottle, sachet, blister, pouch). Secondary groups and brands primary units (mono-carton, shrink-wrapped multipack, display tray). Tertiary / transport moves them (corrugated shipper, stretch-wrapped pallet, unit load).
• Convenience and modern requirements: easy-open, resealability, tamper evidence, child resistance (pharma), single-serve sachets for low-unit-price India (₹1–₹10 packs), e-commerce-ready packaging (SIOC — ships in own container, no overbox).
• Shelf impact / blocking: a pack is seen at ~1 m for 2–3 seconds. Designers use a brand block (repeated facing creating a billboard), a single dominant focal element, strong figure-ground contrast and variant colour coding so the range reads as a family while flavours separate.
• Visual hierarchy on pack: brand → product descriptor/variant → key benefit claim → appetite appeal/imagery → mandatory text. Mandatory declarations are given their own zone so they never compete with the selling face.

Materials and substrates

• Paperboard: FBB/GC1 (folding box board, bright coated — cosmetics, pharma), SBS (solid bleached sulphate), duplex / CCNB (coated back grey — the Indian workhorse), kraft (uncoated, natural look). Specified by GSM (grammage) and caliper (thickness, microns); 250–350 GSM is typical for mono-cartons.
• Corrugated fibreboard: flutes A (coarse, cushioning), C (general shipper), B (crush-resistant), E/F (micro-flute for retail-ready boxes). Construction is 3-ply (single wall), 5-ply (double wall), 7-ply. Specified by bursting strength / BF, ECT (edge crush test) and GSM of liners; IS 2771 covers corrugated fibreboard boxes.
• Flexible films and laminates: BOPP, PET, metallised PET, aluminium foil, LDPE/LLDPE sealant, nylon. Structures are written outside-in, e.g. *PET 12 / MET PET 12 / PE 50* — the outer layer carries print (reverse printed), the middle is the barrier, the inner seals. Foil gives the highest barrier; metallised PET is a cheaper compromise.
• Rigid: glass (inert, premium, heavy), PET (clarity, light, recyclable), HDPE (chemical resistance), tinplate and aluminium cans, laminated tubes, aseptic liquid cartons.
• Sustainable options: mono-material recyclable structures (all-PE or all-PP laminates), paper-based barrier boards, compostable films (PLA/PBAT, certified to IS 17088 for compostable plastics), reduced-GSM light-weighting, refill packs.
• Trade-off to state in exams: barrier and strength push cost and weight up; recyclability pushes designers away from multilayer laminates, which are exactly the cheapest high-barrier option.

Structural design: formats, dielines and mock-ups

• A dieline is the flat 2D blank showing cut lines (solid), fold/crease lines (dashed), glue flaps, bleed and the safe area. It is drawn to the *outside* dimensions plus allowances for board caliper, and it is the single document shared with the converter.
• Standard carton styles (ECMA codes): straight tuck end (STE), reverse tuck end (RTE — stronger against pop-open), crash-lock/auto-bottom (fast packing of heavy goods), seal-end carton, tuck-top with dust flaps, sleeve, gable top, pillow pack, hexagonal and window cartons.
• Standard corrugated styles (FEFCO codes): 0201 RSC (regular slotted container — the default shipper), 0203 full-overlap, half-slotted, die-cut tray with lid, shelf-ready packaging with a tear perforation.
• Flexible formats: three-side-seal sachet, centre-seal pillow pouch, stand-up pouch (doypack) with bottom gusset, spouted pouch, flow wrap, shrink sleeve (360° decoration on contoured bottles; artwork must be pre-distorted for shrink), strip and blister packs (PVC/PVdC or Alu-Alu for pharma).
• Mock-up / prototype workflow: 3D sketch → CAD dieline (ArtiosCAD, Illustrator) → sample cut on a table plotter → hand-folded white dummy for ergonomics → printed digital mock-up for presentation → press-proof on the actual substrate. A pack is never signed off on screen alone; colour and tactility change completely on real board.
• Fitment checks: headspace, filling tolerance, nesting, stacking strength, closure torque, and whether the pack stands on an Indian retail shelf of ~300–400 mm depth.

The design process on a live project

1. Brief and audit: category shelf audit (photograph the competitor shelf), existing equity assets, target consumer, price point, channel (kirana / modern trade / e-commerce / horeca).
2. Technical inputs: product nature, shelf life and barrier need, filling line speed and format limits, budget per pack, MOQ, printing process already available at the converter.
3. Structure first, graphics second where the structure is being changed; graphics first on a restage.
4. Concepts: 2–3 routes, each with a written rationale, shown as 3D visuals on a mock shelf (6-up facing) rather than flat.
5. Refinement and consumer check: legibility at arm's length, greyscale test, 30% reduction test, distinctiveness test (cover the logo — is it still yours?).
6. Artwork and compliance: final dieline, mandatory declarations, barcode, batch/date coding window (leave an uncoated, unprinted area for inkjet coders), nutrition panel, legal fonts and minimum sizes.
7. Prepress hand-over and press approval: separations, spot colours, trapping, proofs, then a signed press OK sheet that becomes the colour standard for all reprints.

Printing, decoration and packaging-specific artwork constraints

• Offset lithography: sheet-fed, for mono-cartons and labels — best fine detail and type, 4-colour process plus spot colours.
• Flexography: flexible film, paper labels and printed corrugated; cheaper plates, shorter runs, coarser detail; needs bar width reduction and generous trapping because of dot gain and press bounce.
• Rotogravure: engraved cylinders, the Indian standard for long-run flexible FMCG packaging — superb solids and metallics, but each colour needs a cylinder, so colour count drives tooling cost.
• Screen printing on glass and plastic bottles; digital (inkjet/toner) for short runs, test markets, variable data and personalisation; pad printing on small contoured items.
• Finishing: aqueous or UV varnish, gloss/matte lamination, spot UV, hot and cold foil stamping, metallic and fluorescent inks, embossing/debossing, soft-touch coating, tactile braille (mandatory on medicine packs in several export markets).
• Packaging-only artwork rules: build brand colour as a spot (Pantone) colour, not CMYK, so it repeats across substrates; white ink is a printed colour on film and must be drawn as a separate layer; reverse-printed laminates need the artwork mirrored; keep live matter 3–5 mm inside creases; never place type across a crease or a glue flap; keep barcodes away from flutes and perpendicular to the flute direction; allow for colour shift on brown kraft (overprint white first or accept the shift).

Indian law, labelling and codes

• Legal Metrology Act, 2009 and the Legal Metrology (Packaged Commodities) Rules, 2011 govern every pre-packed commodity. Mandatory declarations on the principal display panel (PDP): name and address of the manufacturer/packer/importer; common or generic name of the commodity; net quantity in standard SI units; month and year of manufacture/pre-packing/import; retail sale price as "Maximum Retail Price ₹ … inclusive of all taxes"; consumer-care name, address, phone and email; country of origin for imports. Amendments since 2022 also require the unit sale price and allow the date in month-year form for many foods. Declarations must also be displayed on e-commerce listings.
• Minimum size rules: the Rules fix minimum heights for the net-quantity numerals that scale with the PDP area (roughly 1 mm for the smallest panels up to about 6 mm for the largest) and require the declarations to be in a colour contrasting with the background. The table has been amended more than once — read the current Rule before signing artwork.
• FSS (Labelling and Display) Regulations, 2020 for food: list of ingredients in descending order of weight, declaration of the eight major allergen groups, nutritional information per 100 g/100 ml and per serving with %RDA, FSSAI logo with the 14-digit licence number, veg mark (green filled circle in a green square) or non-veg mark (brown filled triangle in a brown square), "best before"/"use by"/"expiry" as applicable, vegan logo where claimed, and strict control of claims such as "natural", "fresh", "no added sugar". Front-of-pack star rating (Indian Nutrition Rating) has been issued as a draft amendment and is not a notified mandatory requirement.
• Other sectoral labels: Drugs Rules for medicines (Rx symbol, red line on certain antibiotics, batch, mfg/exp, generic name at least as prominent as the brand, and a QR code on the top 300 drug formulations since 1 August 2023); Cosmetics Rules, 2020; BIS/ISI mark and hallmarking with a HUID for gold jewellery; Jute Packaging Materials Act for prescribed commodities.
• Barcodes: GS1 India issues company prefixes (India begins 890). EAN-13 on consumer units, ITF-14 on shippers, GS1-128 for logistics data, 2D GS1 DataMatrix/QR for batch and expiry. Printed at 80–200% magnification with the quiet zones kept clear.
• GST is included in MRP — the "local taxes extra" wording is not permitted; the rate slabs are 5%, 18% and 40% since 22 September 2025, which matters when an MRP has to be reprinted.

Sustainability, EPR and testing

• Plastic Waste Management Rules, 2016 as amended: identified single-use plastic items are banned since 1 July 2022; plastic carry bags must be at least 120 microns; packaging must carry the producer's name and the EPR registration number. The EPR Guidelines (2022) classify plastic packaging as Category I rigid, II flexible single-layer, III multilayered, IV compostable, and set recycling and mandatory recycled-content targets that step up each financial year — quote the currently notified percentage rather than from memory. Registration and credit trading run on the CPCB EPR portal.
• The Solid Waste Management Rules, 2026 replaced the 2016 Rules from 1 April 2026 and govern segregation and municipal handling of packaging waste.
• Design for recycling: mono-material, avoid PVC and carbon-black pigments, use wash-off labels and adhesives, avoid full-body sleeves on PET bottles, minimise layers, keep resin identification codes 1–7 legible.
• Testing (converter/brand side): drop test, vibration, box compression (BCT), ECT, bursting strength, Cobb water absorption, seal strength and leak test, migration testing for food contact, water-vapour and oxygen transmission rate (WVTR/OTR), and accelerated shelf-life studies.

Key points

• Packaging design - designing structure and graphics together so a pack protects, informs, sells and complies.
• Three levels - primary (touches product), secondary (mono-carton/multipack), tertiary (shipper/pallet).
• Dieline - the flat blank with cut, crease, bleed and safe-area marks; the one file the converter works from.
• PDP - principal display panel; the face the consumer sees and where the law requires the main declarations.
• GSM vs caliper - grammage is weight per m², caliper is thickness; two boards of the same GSM can differ in stiffness.
• Flute grades - A/C cushion, B crush-resists, E/F micro-flute for retail-ready printed boxes.
• ECT and BCT - edge crush strength of the board; box compression strength of the finished box, estimated by McKee's formula.
• Rotogravure - long-run flexible printing standard in India; one cylinder per colour, so colour count = tooling cost.
• Flexography - film and corrugated printing; needs bar width reduction and extra trapping for dot gain.
• Spot colour - a pre-mixed Pantone ink that holds a brand colour identically across substrates, unlike CMYK builds.
• Shrink sleeve artwork - must be pre-distorted because the film shrinks unevenly over a contoured bottle.
• Legal Metrology Rules, 2011 - net quantity, MRP "inclusive of all taxes", manufacturer and consumer-care details, month-year of packing.
• FSS Labelling and Display Regulations, 2020 - ingredients, allergens, nutrition per 100 g and per serving, FSSAI licence number, veg/non-veg mark.
• EAN-13 / GS1 India - 13-digit retail barcode, Indian prefix 890, printed at 80–200% with quiet zones preserved.
• EPR - the producer's legal duty to collect and recycle its plastic packaging, by category, with recycled-content targets.
• Mono-material - a single-polymer laminate that is recyclable, at some loss of barrier.
• Brand block - the billboard effect created when several facings of a pack sit together on shelf.
• Press OK - the signed printed sheet that becomes the colour standard for every later run.

Formulas and examples

Example 1 — Board cost of a mono-carton. A carton blank measures 210 × 180 mm, printed 300 GSM duplex board costing ₹85/kg, on a 720 × 1020 mm sheet.

• Orientation A: floor(1020/210) = 4, floor(720/180) = 4 → 16-up. Orientation B: floor(1020/180) = 5, floor(720/210) = 3 → 15-up. Use 16-up.
• Utilisation = 16 × (0.210 × 0.180) / (0.720 × 1.020) = 0.6048 / 0.7344 = 82.4%.
• Sheet weight = 0.7344 × 300 = 220.3 g = 0.2203 kg → ₹0.2203 × 85 = ₹18.73 per sheet.
• Board cost per carton = 18.73 / 16 = ₹1.17. For 1,00,000 cartons you need 1,00,000/16 = 6,250 sheets plus make-ready waste (~300–500 sheets for offset).

Example 2 — Stacking strength of a shipper. A 5-ply RSC, 400 × 300 × 250 mm, caliper 4 mm, ECT 6 kN/m (= 6 N/mm), gross weight 10 kg.

• Z = 2(400 + 300) = 1400 mm; √(4 × 1400) = √5600 = 74.83.
• BCT = 5.87 × 6 × 74.83 = 2,635 N ≈ 269 kgf.
• With FS = 5, safe load = 2635/5 = 527 N = 53.7 kgf → boxes above one box = 53.7/10 = 5.37 → 5 boxes may sit on top, i.e. stack 6 high.
• Note the limitation: McKee assumes a well-made, dry, unventilated box; hand-holes, high humidity and long storage all reduce the real value, which is why the factor of safety exists.

Example 3 — Pallet loading. Same box, 1200 × 1000 mm pallet.

• 1200/400 = 3 and 1000/300 = 3.33 → 3 × 3 = 9 boxes per layer (a 100 mm strip is wasted).
• Footprint efficiency = 9 × (0.40 × 0.30) / (1.20 × 1.00) = 1.08/1.20 = 90%.
• Stack 6 layers high (from Example 2) → 54 boxes, load height = 6 × 250 = 1500 mm plus pallet.
• Redesigning the box to 300 × 200 mm would give 4 × 5 = 20 per layer and 100% footprint efficiency — a graphic-neutral change that saves real freight.

Example 4 — Barcode and legal panel. A shampoo bottle 150 mm tall (label area) and 60 mm diameter, GTIN prefix 890 1234 5678 9.

• Check digit: 8(1)+9(3)+0(1)+1(3)+2(1)+3(3)+4(1)+5(3)+6(1)+7(3)+8(1)+9(3) = 8+27+0+3+2+9+4+15+6+21+8+27 = 130; (10 − 0) mod 10 = 0 → 8901234567890.
• EAN-13 at 100% is 37.29 × 25.93 mm including its quiet zones; at 80% magnification the symbol width is 0.80 × 37.29 = 29.8 mm — the minimum permitted, so a narrow panel must still reserve about 32 mm of clear horizontal space.
• PDP area = 0.40 × 150 × (π × 60) = 0.40 × 150 × 188.5 = 11,310 mm² = 113.1 cm² → falls in the 100–500 cm² band, so the net-quantity numerals must be at least 2 mm high under the current Rule 9 table.

Example 5 — Flexible pouch: material plus tooling. Stand-up pouch 130 mm wide × 200 mm high with a 40 mm bottom gusset; laminate PET 12 / MET PET 12 / PE 50 at about 110 GSM; film ₹230/kg; 6-colour rotogravure, cylinders ₹8,000 each.

• Film area = 2 × (0.130 × 0.200) + (0.130 × 0.040) = 0.0520 + 0.0052 = 0.0572 m²; add 10% for seals and trim → 0.0629 m².
• Film weight = 0.0629 × 110 = 6.92 g → cost = 0.00692 × 230 = ₹1.59 per pouch.
• Tooling = 6 × 8,000 = ₹48,000. Over 50,000 pouches that is ₹0.96 each; over 5,00,000 it is ₹0.096 each — the arithmetic that sends test markets to digital print and national launches to gravure.

Where it is used

• FMCG brand and design teams: Hindustan Unilever, ITC, Dabur, Marico, Amul, Britannia, Parle, Haldiram's — restages, variant extensions, sachet formats and festive packs.
• Design consultancies and agencies: Elephant Design, DY Works, Landor India, Lopez Design — brief-to-artwork projects, shelf audits, 3D mock-ups and brand guardianship.
• Converters and printers: TCPL Packaging, Parksons, Uflex, Huhtamaki India, Manjushree Technopack, EPL (formerly Essel Propack) — artwork adaptation, prepress, dieline engineering and press approval.
• Pharma and nutraceuticals: Cipla, Sun Pharma, Himalaya — blister and carton artwork under the Drugs Rules, QR coding, leaflet and braille layout, anti-counterfeit features.
• E-commerce and D2C: Amazon/Flipkart packaging standards, SIOC design, unboxing experience, right-sizing to cut dimensional-weight freight.
• Job roles: packaging designer, structural/dieline designer, artwork and compliance executive, prepress and repro artist, packaging development executive (brand side), 3D visualiser.

Interview questions

• Q: What is a dieline and what must it show? A: The flat blank of the pack drawn to size, showing cut lines, fold/crease lines, glue flaps, bleed and safe area; it is the file the converter cuts the die from, so its dimensions, not the visual, decide whether the pack fits.
• Q: Why is a brand colour specified as a Pantone spot and not CMYK? A: A spot ink is pre-mixed, so it reproduces the same on carton, film and label; a CMYK build shifts with substrate, press, dot gain and process, and the brand colour becomes inconsistent across formats.
• Q: Which declarations are legally mandatory on an Indian pre-packed food? A: Under the Legal Metrology (Packaged Commodities) Rules, 2011 and the FSS (Labelling and Display) Regulations, 2020: name and address of the manufacturer/packer, common name, net quantity, month-year of packing, MRP inclusive of all taxes, consumer-care details, ingredient list, allergens, nutrition panel, FSSAI logo with licence number and the veg/non-veg mark.
• Q: Why is artwork for a laminated pouch mirrored? A: Because it is reverse printed on the inside face of the outer film, which then laminates to the barrier and sealant layers — the ink ends up protected between layers.
• Q: What changes when you design for flexo on corrugated rather than offset on board? A: Lower resolution and heavier dot gain, so avoid fine type and small reverse type, increase trapping, apply bar width reduction to the barcode, limit colour count, and keep the barcode away from flutes.
• Q: What is EPR and how does it affect your artwork? A: Extended Producer Responsibility makes the brand owner responsible for collecting and recycling its plastic packaging; the pack must carry the producer's name and EPR registration number, and the structure should be designed for recycling, which pushes toward mono-material laminates.
• Q: How do you decide the size of the barcode on a small sachet? A: EAN-13 may be printed between 80% and 200% magnification; at 80% the symbol is about 29.8 mm wide including its quiet zones, so if the panel cannot hold that, you change the panel, use a different symbology or move the code to the secondary pack.
• Q: A client wants a premium look at the lowest cost. What do you do? A: Spend the money where the eye lands — one spot metallic or a small foil/spot-UV area on an otherwise clean uncoated board often reads more premium than full lamination, and keeping the colour count low saves plate or cylinder cost.
• Q: What is shelf blocking and how is it designed for? A: The billboard effect of several facings together; it is achieved with a consistent coloured background field, a repeated graphic device and a single strong focal point, which is why packs are always reviewed as a 6-up or 12-up shelf set, not one at a time.
• Q: Why do shrink-sleeve designs look distorted in the artwork file? A: The film shrinks by different amounts over the contours of the bottle, so the artwork is pre-distorted using the converter's shrink map to come out correctly on the filled container.
• Q: What is the difference between ECT and BCT? A: ECT is the edge crush strength of the corrugated board itself; BCT is the compression strength of the assembled box, approximated from ECT, caliper and box perimeter by McKee's formula and reduced in practice by humidity, hand-holes and storage time.
• Q: Where would you leave space on a pack for something that is not design? A: An uncoated, un-varnished window for the online batch and date coder, plus clearance for the pack's seal area, filling-line gripper zone and the barcode quiet zones.

Common mistakes

• Designing graphics on a rectangle and fitting a dieline afterwards — the fold lines then cut through type, logos and the focal image.
• Ignoring board caliper in the blank, so the carton is tight, pops open or will not glue; also forgetting dust flaps and glue-flap areas must stay unprinted.
• Treating legal text as an afterthought: wrong MRP wording, missing consumer-care details, numerals below the prescribed height, or a nutrition panel squeezed below legibility.
• Submitting a CMYK build of the brand colour, RGB images, un-outlined fonts, or a barcode generated as a low-resolution image instead of vector with the correct quiet zones.
• Judging colour and finish from a screen or an inkjet mock-up rather than a proof on the actual substrate — kraft, metallised film and uncoated board all shift colour badly.
• Quoting a withdrawn standard or an old legal requirement in a viva (for example a repealed packaging rule or a pre-2020 food label format) instead of the current Rules.
• Printing fine detail or small reverse type in a flexo or gravure job where dot gain will close it up, and placing live matter too close to creases and seals.

Related topics

Branding and communication design · Print production and prepress · Publication design and layout · Information design and infographics · Design software: Adobe tools · Environmental graphics and signage