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The The Print Codex

India's most complete printing and packaging knowledge hub, 71 in-depth guides covering every aspect of commercial and packaging print production. Written for Mumbai and India, relevant worldwide.

71
In-depth articles
13
Topic sections
4
Interactive tools
38
Years experience
Where do you want to start?
🖨️
New to print
Start with printing processes, offset, digital, flexo, gravure explained from the ground up.
🎨
Designer
Bleed, rich black, ICC profiles, and typography, everything to make files that print correctly.
📦
Packaging
Folding cartons, flexible packaging, labels, regulations, and structural design guides.
🛒
Print buyer
Buyer's guides, cost estimation, FAQs, and interactive quote and brief tools.
🔬
Quality / production
ISO 12647-2, instruments, defect guides, density and Delta E testing.
⚙️
Need a tool
Job brief generator, material calculator, quote justification, preflight checklist.
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A
Section A · 8 articles
Printing Processes
How ink gets from a digital file to a printed substrate, the mechanics, characteristics, and applications of every major print process used in India.
⭐ Most read
Offset Printing, The Complete Guide
How offset works, press units, makeready, ink-water balance, dot gain, and what makes offset the benchmark for quality commercial print.
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 Section A
Digital Printing
Inkjet and toner digital printing, when digital beats offset, variable data printing, and quality comparison for Indian buyers.
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 Section A
Flexographic Printing
CI flexo, anilox rollers, plate mounting, and flexo's dominant role in Indian flexible packaging and corrugated printing.
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 Section A
Gravure Printing
Recessed cell cylinders, doctor blades, high-speed solvent printing, why gravure dominates premium Indian flexible packaging.
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 Section A
UV Printing
UV-cured inks and coatings, instant curing, high gloss, non-absorbent substrates, and LED-UV in Indian press rooms.
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 Section A · C · H
Screen Printing + Food-Safe Inks + Press Chemistry
Screen printing process; food-safe and low-migration ink compliance for Indian packaging; offset press chemistry.
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 Section A
Pad Printing
How silicone pads transfer ink from etched plates onto curved and irregular 3D surfaces, pens, electronics, bottles, medical devices.
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 Section A
Dye Sublimation Printing
How heat converts solid dye to gas that bonds permanently into polyester, sportswear, soft signage, mugs, awards, and fabric displays.
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B
Section B · 11 articles
Paper & Board
The substrate is the foundation of every print job. Paper selection determines colour reproduction, finishing compatibility, and how the finished piece feels.
Section B
GSM Explained
Why A0 = 1m², how to calculate ream weights, and what GSM means for print buyers and production teams.
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 Section B
Paper & Board Grades
SBS vs FBB vs coated art vs uncoated offset, characteristics, applications, and how to choose the right grade.
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 Section B
Grain Direction
Why grain direction affects binding quality, fold crispness, and carton erection, and how to specify it correctly.
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 Section B
Paper Coatings & Surfaces
Gloss, matte, silk, and satin coatings, how mineral coating affects ink holdout and colour reproduction.
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 Section B
How Paper is Made
From wood pulp to finished reel, the paper manufacturing process and why it matters for print quality and sustainability.
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 Section B
Paper Measurement Tools
How paper is tested and characterised, stiffness, roughness, opacity, brightness, and caliper measurement explained.
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 Section B
Paper Types, Complete Guide
12 paper categories demystified, art, matte, uncoated, newsprint, kraft, duplex, and board grades with India-specific sourcing context.
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 Section B
Specialty Papers India
Cotton rag, handmade, watercolour, art papers, and premium specialty substrates, selection, sourcing, and India pricing guidance.
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 Section B
Synthetic & NCR Papers
Yupo, stone paper, PP and PE synthetics, and carbonless NCR forms, properties, print compatibility, and India applications.
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 Section B
Indian Paper Mills, Directory
16 IPMA-verified Indian paper mills with products, capacity, and contact details, the complete sourcing reference for Indian paper.
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 Section B
International Paper Mills
Sappi, Stora Enso, UPM, Fedrigoni, GF Smith, Gmund, Favini, and Hahnemühle, key products and India import context.
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C
Section C · 6 articles
Inks & Colour
Colour science, ink chemistry, and colour management, the knowledge that separates predictable colour from guesswork.
Section C
CMYK, How Process Colour Works
Subtractive colour mixing, halftone screens, and why four inks reproduce the appearance of millions of colours.
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 Section C
Pantone & Spot Colours
How Pantone works, when to use spot vs CMYK, and consistent brand colour across every production run.
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 Section C
Colour Management
ICC profiles, rendering intents, soft proofing, and monitor calibration, the complete colour management framework.
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 Section C
Types of Printing Inks
Oil-based, solvent, water-based, and UV inks, chemistry, drying mechanisms, and choosing the right ink for each process.
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 Section C
Ink Drying & Curing
Oxidation, absorption, evaporation, and UV cure, the drying mechanisms affecting delivery time and lamination readiness.
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 Section C
Specialty Inks
Metallic, fluorescent, white ink, thermochromic, edible, UV fluorescent invisible, and conductive inks, what each is and when to specify it.
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D
Section D · 6 articles
Pre-Press
Everything between the approved design file and the first printed sheet, the production steps that determine whether a job prints correctly.
⭐ Start here
Pre-Press, The Complete Guide
The full pre-press workflow from file receipt to plate output, preflight, RIP, trapping, imposition, proof, and press plate.
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 Section D
Plate Making
CTP plate technology, thermal vs violet plate types, plate processing chemistry, and plate care for consistent quality.
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 Section D
Imposition
How pages are arranged on the press sheet, the geometry of signatures, saddle stitch, and perfect binding imposition.
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 Section D
Trapping & Overprint
Why trapping prevents gaps between adjacent colours at press, how overprint works, and trap values for each process.
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 Section D
Barcode Guide
EAN-13, ITF-14, QR, DataMatrix, GS1 India requirements, magnification limits, colour rules, and verification grades.
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 Section D
Proofing
Contract proofs, soft proofs, and press proofs, what each confirms, D50 viewing, and how to manage proof approval.
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E
Section E · 7 articles
Post-Press & Finishing
The processes that transform flat printed sheets into finished products, and signal quality at first touch.
Section E
Lamination
Gloss, matte, and soft-touch BOPP lamination, bonding chemistry, gloss unit targets, common defects, and specification guide.
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 Section E
Varnishes & Coatings
Spot UV, flood UV, aqueous varnish, and inline coatings, applications, gloss targets, and design rules that make varnish work.
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 Section E
Foil Stamping
Hot and cold foil, transfer mechanics, metallic and holographic options, die specifications, and India pricing context.
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 Section E
Die Cutting
Flatbed and rotary die cutting, steel rule tools, creasing rules, carton board crease depth calculations, die maintenance.
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 Section E
Embossing & Debossing
Blind emboss, registered emboss, and debossing, creating tactile surface effects unmistakeable at first touch.
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 Section E
Binding
Saddle stitch, perfect binding, case binding, and wire-O, when to use each, page limits, and how binding affects design.
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 Section E
Specialty Finishing
Textured coatings, cold foil inline, digital die cutting (Zünd), Braille on pharmaceutical packaging, and shrink wrapping.
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F
Section F · 2 articles
Measurements & Standards
ISO 12647-2, paper sizes, screen ruling, register tolerances, and the GSM-to-caliper relationship.
Section F
ISO 12647-2, Press Characterisation
Densitometry, dot gain measurement, ISO density targets for coated paper, and the full press characterisation framework.
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 Section F
Paper Sizes, Screen Ruling, Register & GSM/Caliper
ISO A and SRA series, LPI selection, register tolerances and causes of misregister, GSM to caliper reference table.
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G
Section G · 3 articles
Quality Testing
How print quality is objectively measured and verified, tests that distinguish claims from evidence.
Section G
Print Defects Guide
Every major offset defect, scumming, hickeys, setoff, ghosting, misregister, cause, diagnostic, and press-side correction.
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 Section G
Adhesion & Rub Testing
Tape adhesion, cross-hatch, and Sutherland dry and wet rub testing, pass criteria for commercial, packaging, and label applications.
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 Section G
Gloss, Colour & Lamination Testing
Gloss unit targets, ΔE colour verification, lamination bond testing, objective quality tests for finished print and packaging.
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H
Section H · 5 articles
Offset Press Consumables
The consumables that keep an offset press running correctly, plates, blankets, inks, fountain solution, and anti-setoff powder.
Section H
Printing Plates
Aluminium offset plate construction, CTP coating types, run length ratings, and plate care for maximising print quality.
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 Section H
Printing Blankets
Compressible vs conventional blankets, hardness, packing height, and the blanket's role in dot reproduction and ink transfer.
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 Section H
Offset Inks
Lithographic ink chemistry, tack, viscosity, trapping, vegetable vs mineral oil, and specification by paper type.
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 Section H
Fountain Solution
Fountain solution chemistry, pH and conductivity targets, IPA alternatives, and preventing the most common offset defects at source.
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 Section H
Anti-Setoff Powder
Starch powder particle sizes, correct application rates, and how anti-setoff powder prevents blocking without contaminating the surface.
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I
Section I · 1 article
Lamination Films
BOPP, PET, and speciality lamination films, specifications, adhesives, and film selection guide.
Section I
Lamination Film Types, Specs & Adhesives
BOPP, PET, and speciality films, thickness specifications, thermal vs wet lamination, adhesive chemistry, and complete film selection guide.
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J
Section J · 6 articles
Packaging Deep-Dive
Every major packaging format used in Indian FMCG, pharma, and food production, from structural design to regulatory compliance.
⭐ Most read
Folding Cartons, Complete Guide
Structural styles, dieline setup, board selection, creasing rules, and complete quality specification for Indian folding carton production.
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 Section J
Flexible Packaging
Laminate structures, barrier properties, sealing, retort capability, and printed flexible packaging specifications for Indian FMCG.
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 Section J
Labels
Pressure-sensitive label structures, face stock selection, adhesive types, and India label printing landscape.
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 Section J
Corrugated Packaging
Flute grades, liner weights, box styles, print methods, and compression strength, the complete corrugated reference for India.
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 Section J
Blister Packaging
Thermoform blister materials, PVC/PVDC/aluminium lidding specifications, and pharmaceutical blister compliance in India.
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 Section J
India Packaging Regulations
FSSAI, Legal Metrology, BIS, EPR, mandatory declarations, symbols, and compliance for packaged products in India.
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K
Section K · 2 articles
Measurement Instruments
The six instruments every press room needs, what each measures, procedures, calibration, and Indian cost references.
Section K
Densitometer & Spectrophotometer
Density measurement, ISO 12647-2 targets, L*a*b* colour space, ΔE verification, M1 conditions, and when to use each instrument.
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 Section K
pH, Gloss, Rub & Caliper Instruments
pH/conductivity for fountain solution, gloss meter for finishes, Sutherland rub tester, and caliper, all with procedures and targets.
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L
Section L · 3 articles
Design for Print
The technical knowledge that separates files that print correctly from those requiring expensive pre-press correction, written for designers working on Indian print.
⭐ Essential for designers
Designing for Offset & Colour Profiles
Bleed, margins, rich black, overprint, image resolution, PDF/X-4 export, ISOcoated_v2, and soft proofing, file setup done right.
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 Section L
Typography, Packaging Design & Large Format
Minimum type sizes, font embedding, reversed text rules, packaging hierarchy and shelf impact, large format resolution rules.
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 Section L
Design for Flexo & Gravure
Minimum line weights, trap values, tonal range limits, highlight clipping, and register tolerance for flexible packaging processes.
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M
Section M · 3 articles
Resources
Practical guides for everyone who commissions or manages print, buyer's guides, cost estimation, sustainability, and FAQs.
Section M
Print Buyer's Guide & Packaging Buyer's Guide
How to brief, specify, proof, and approve commercial print; how to source and manage packaging production in India.
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 Section M
Sustainability, Industry, Costs & FAQs
FSC and sustainability certifications, the Indian print industry overview, what drives print cost, and frequently asked questions answered.
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 Section M
Export Packaging Regulations
EU PPWR/REACH, US FDA 21 CFR, UK post-Brexit, Japan, and GCC, compliance requirements and documentation for Indian exporters.
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N
Section N · 1 article
Publication Printing
Newspapers, magazines, books, and catalogues, India's vast publication printing landscape and what makes each format distinct.
Section N
Publication Printing, India
Newspaper web offset, magazine gravure, book printing, and catalogues, India's publication printing landscape and process selection guide.
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O
Section O · 1 article
Security Printing
Currency, passports, stamps, cheques, holograms, scratch cards, and pharmaceutical serialisation, India's security printing ecosystem.
Section O
Security Printing, India
Currency, passports, stamps, cheques, holograms, and pharmaceutical serialisation, how each works and who is authorised to produce it in India.
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P
Section P · 1 article
Textile & Garment Printing
Screen printing on fabric, DTG, dye sublimation, heat transfer, digital textile, and rotary screen, India's Tirupur, Surat, and Ahmedabad context.
Section P
Textile & Garment Printing
Screen printing on fabric, DTG, dye sublimation, heat transfer, digital textile, and rotary screen, processes, inks, and India's major garment printing centres.
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Q
Section Q · 1 article
Specialty Processes
Letterpress, thermography, engraving, lenticular, in-mould labelling, shrink sleeves, and Risograph, niche processes with irreplaceable results.
Section Q
Specialty Printing Processes
Letterpress, thermography, engraving, lenticular, in-mould labelling, shrink sleeves, and Risograph, when each produces results nothing else can.
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R
Section R · 1 article
Specialty Substrates
Metal, ceramic tile, glass, wood, MDF, acrylic, and fabric for signage, printing on surfaces that are not paper.
Section R
Specialty Substrates
Metal and tin, ceramic tile, glass, wood and MDF, acrylic, and fabric for signage, processes, inks, and India applications for each.
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S
Section S · 2 articles
India Print Industry
The printing geography of India, major hubs, what each city specialises in, and the distinctly Indian printing traditions of wedding cards, religious printing, and regional scripts.
Section S
India Print Hubs
Sivakasi, Mumbai, Delhi NCR, Ahmedabad, Chennai, Pune, Bengaluru, Hyderabad, Kolkata, what each city prints, its scale, and India's trade bodies.
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 Section S
India-Specific Printing
Wedding cards and regional variations, India's religious printing tradition, and print workflow for Indian scripts, Devanagari, Tamil, Telugu, Malayalam, Urdu.
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⚙
Interactive Tools · 4 tools
Free Print Tools
Browser-based tools requiring no registration, generate briefs, calculate paper consumption, justify quotes, and run preflight checklists.
Job Brief Generator
4-step wizard covering job details, paper, colour, and finishing, download a professional PDF brief to send to any press room.
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Material Calculator
Sheet count, spoilage, paper weight in kg, and reams for any offset job, updates live as you type, with full calculation breakdown.
Open tool →
Quote Justification Sheet
Line-item quote with plain-English cost explanations, helps clients understand what they're paying for. Download as PDF.
Open tool →
Print Spec Checklist
Tailored preflight checklists for 5 job types, commercial, folding carton, flexible packaging, label, and large format. Print-ready.
Open tool →

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