Custom Cosmetic Bag Design File Requirements: AI, PDF, DXF
Executive Summary
Custom cosmetic bag design file requirements come down to three jobs that three file types do: AI or EPS carries vector logo artwork, PDF carries the print-ready and approval copy, and DXF carries the geometry for pattern pieces, cutting dies and laser work. Supply all three with the correct settings and a sample arrives in 6-10 working days; supply a raster logo or a DXF in the wrong units and the same sample takes 12-15 working days for a complex construction, plus a second round.
The settings that matter are specific. Artwork should be CMYK or named Pantone spot colours with fonts converted to outlines, strokes expanded and a minimum stroke weight of 0.25 mm for print or 0.8 mm for laser and die work. Print-ready PDFs need 3 mm bleed and embedded fonts. DXF files must be millimetres, 1:1 scale, closed polylines with notches on a separate layer. Alongside them sits the tech pack, which fixes dimensions, tolerances of plus or minus 2-3 mm, seam allowance, stitch density and artwork coordinates in millimetres from two stated datums.
Why the file type decides the sample a buyer receives
Three different jobs are being done when a bag goes from idea to sample, and each needs its own file. Artwork has to be reproduced at a physical size on a specific substrate, which needs vectors. Geometry has to be transferred to a cutting die, a laser bed or a clicker press, which needs a CAD exchange format. Everything else — dimensions, materials, tolerances, hardware, packing — has to be communicated unambiguously, which needs a written specification rather than a drawing alone.
Confusing the three is the most common cause of a wasted sample round. A brand owner sends a JPEG of the logo, a screenshot of a competitor's bag and a note saying 22 x 14 x 8 cm. The logo cannot be enlarged without artefacts, the screenshot does not say how the panels are joined, and the note does not say whether the measurement is seam to seam or stuffed. The sample that comes back is a guess, and the guess costs 6-10 working days.
The cost is schedule, not money, and schedule is what breaks launches. Sampling takes 6-10 working days, or 12-15 working days for complex constructions such as moulded EVA cases or bags with metal frames. Bulk production runs 35-50 days after sample approval. A second sample round triggered by a file error therefore adds 6-15 working days to a programme that already spans two months, and it often lands after a retail or campaign date has passed.
There is also a commercial consequence. Files are exchanged before the specification freeze, and the freeze is what makes a quotation firm. A quote issued against incomplete files carries contingency; a quote issued against a complete file set carries none. In practice, supplying a finished tech pack with the first enquiry removes 4-9% of contingency pricing, which makes file discipline one of the cheapest commercial levers available to a buyer.
There is a fourth file type in most programmes, and it is a spreadsheet. Bills of materials, carton specifications and packing lists live in rows rather than in drawings, and a technical pack without a supporting BOM leaves the buyer arguing about fabric weight from memory three months later.
AI, EPS and PDF: artwork and print-ready files
Vector artwork is the master file. Everything else — screens for printing, plates for heat transfer, dies for debossing, paths for laser cutting — is derived from it, so the quality of the deliverable cannot exceed the quality of the vector. A raster image can be printed photographically, but it cannot be scaled cleanly, separated into spot colours or converted into a cutting path without manual redrawing, which is a chargeable service and a source of delay.
| File type | What it is for | Required settings | Failure mode seen most often |
|---|---|---|---|
| Adobe Illustrator (.ai), CC or CS6 | Master logo artwork, vector only | CMYK or named Pantone spot colours, fonts converted to outlines, strokes expanded, scale stated | RGB artwork with live fonts; the printed shade shifts 10-15% from the screen |
| EPS | Exchange copy for screen making and engraving | Vector only, no raster preview below 300 dpi at final size | A low-resolution preview gets used for output instead of the vector |
| PDF/X-1a or PDF/X-4 | Print-ready page and approval copy | 3 mm bleed, crop marks, embedded fonts, flattened transparency | Bleed missing; artwork is cropped at the trim edge of the panel |
| SVG | Single-colour paths for laser cutting or heat transfer | One colour, closed paths, no gradients or meshes | Gradient paths that a cutting machine cannot follow |
| TIFF or PSD | Photographic or tonal artwork only | 300-600 dpi at final print size, CMYK, layers intact | A 72 dpi web image submitted as production artwork |
Three numeric limits decide whether artwork survives contact with a real substrate. Minimum stroke weight is 0.25 mm for screen print and heat transfer, and 0.8 mm for laser cutting, die cutting or debossing, because anything thinner either fails to print or produces a die edge that wears out within a few hundred impressions. Minimum text size is about 5 pt for print, and a cap height of 2 mm for any pressed or cut application. Minimum clearance between two elements is 0.5 mm for print and 1.5 mm for cutting.
Colour information belongs in the file, not in an email. Named Pantone references should be attached to each element in the AI file, with the substrate noted: a TCX reference for dyed fabric, a coated or uncoated reference for print, and a Pantone Plastics reference for hardware or moulded parts. Where a brand has no Pantone reference, a physical swatch should be posted, because a screen render and a dyed polyester panel are not comparable. Colour fastness expectations should be specified by test method; the AATCC test methods index is the usual reference for rubbing, washing and light fastness on bag textiles.
Finally, state the scale and the placement. Artwork supplied at 1:1 is ideal; if it is supplied at another scale, the ratio must be written in the file name or the tech pack, not left to be inferred. Placement should be given as coordinates in millimetres from two fixed datums, typically the zipper line and the nearest side seam, with a tolerance of plus or minus 2 mm. "Centred on the front panel" is not a coordinate, and panels with curved seams have no unambiguous centre.
DXF patterns and the fields a technical pack must contain
DXF is the geometry layer. It carries the outline of each pattern piece, the notch marks that let operators align panels, and any internal cut-outs for handles, windows or hardware slots. It is read by the cutting die maker, by the laser bed and by the grading software that produces other sizes. A DXF that is geometrically correct but semantically wrong — in inches, or with open paths, or with splines instead of polylines — will still open, and will still produce a wrong die.
| File or field | Purpose | Critical setting | Typical tolerance |
|---|---|---|---|
| DXF pattern pieces | Cutting dies, laser cutting, clicker dies | Millimetres, 1:1 scale, closed polylines, one layer per panel type | ±0.5 mm on the die profile |
| DXF notch marks | Alignment during sewing | Own layer, 3-5 mm depth, no fill | ±1 mm in position |
| DXF grain line | Direction of the weave on each panel | Own layer, arrow annotation, stated per piece | ±3 degrees |
| Finished dimensions | Size of the bag | L x W x H in cm with the measurement method stated | ±2-3 mm on soft constructions |
| Seam allowance | How panels join | 8-10 mm on woven shells, 6 mm on bound edges | ±1 mm |
| Stitch density | Strength and appearance | 7-9 stitches per inch on shell, 9-11 on lining | ±1 SPI |
| Material call-out | Bill of materials | Denier, g/m², coating type, colour reference | Substitution needs written approval |
| Hardware call-out | Zippers, pullers, D-rings | Zipper size, tape colour, puller finish | No substitution without approval |
| Artwork placement | Logo position | Coordinates in mm from two stated datums | ±2 mm |
The technical pack carries everything the geometry cannot. A usable pack for a cosmetic bag lists the finished dimensions with the measurement method, the full bill of materials with denier and g/m², the hardware with sizes and finishes, the stitch density, the seam construction for each join, the binding method, the label and hangtag positions, the packing method, and the carton specification with pieces per carton. It is usually a PDF with a supporting spreadsheet for the BOM.
- State the measurement method: seam to seam, or stuffed and measured at the widest point. A 22 x 14 x 8 cm bag differs by 5-8 mm between the two.
- Name the coating by performance, not by nickname. "PU leather" invites substitution; a coating described against a recognised test method does not.
- Specify the zipper path as well as the zipper: straight across the top, or gusseted around three sides. The gusseted path adds 0.6-0.9 standard minutes.
- Give the interior construction explicitly: bound seams, overlocked seams or a lining turned and dropped in. Internal binding costs roughly double an overlocked finish.
- Fix the packing method: flat-packed or stuffed with tissue. Stuffed packing increases carton volume by 15-30% and therefore freight.
Tolerances are the part most packs omit, and their absence is what turns a subjective argument into a dispute later. Soft constructions move: plus or minus 2-3 mm on finished dimensions is realistic, plus or minus 1 mm on seam allowance, plus or minus 1 stitch per inch on density. Where a bag must fit a specific insert, a case or a retail fixture, that fit dimension should be given as a guaranteed minimum or maximum rather than a nominal figure, and it should be inspected at AQL 2.5 under ISO 2859-1 like any other characteristic.
Handoff, version control and what triggers re-sampling
Files move through a programme in a fixed order, and each stage has a different locking effect. Getting the order right means nobody argues later about whether a change was free. The rule that makes it work is simple: the specification freezes at the point sampling starts, and anything changed after that point costs a new sample round and the calendar time that goes with it.
| Stage | Files exchanged | Who signs | Locked after this point |
|---|---|---|---|
| Enquiry | Sketch, reference photos, target dimensions, target quantity | Buyer | No — everything is indicative |
| Quotation | Draft tech pack, fabric card images, indicative artwork | Buyer and programme coordinator | Price is indicative only |
| Specification freeze | Final AI or EPS artwork, DXF, completed tech pack | Buyer | Yes — geometry and artwork |
| Sampling | Sample photographs, measurement report, revised DXF if graded | Buyer | Yes — materials and colour |
| Pre-production | Approved sample, BOM, packing specification, carton marks | Buyer | Yes — construction and packing |
| Bulk and release | AQL 2.5 inspection report under ISO 2859-1 | Buyer's inspector | Yes — shipment release |
Version control is unglamorous and prevents most of the avoidable waste. One master file per element, a file name that carries the revision, a single revision table in the tech pack listing what changed and when, and a rule that no file is accepted by email thread alone. Buyers who send artwork in three separate messages with three attachments and the note "use the latest one" will eventually have the wrong one used, and the resulting sample will be correct to the file that was supplied.
Any artwork change after the specification freeze; a Pantone reference changed on any component; a hardware change, including zipper size or puller finish; a dimension change greater than 3 mm; adding or removing a print colour; changing the shell fabric or coating; and changing the interior construction. Each costs 6-10 working days, or 12-15 working days for complex constructions, and each pushes the 35-50 day bulk window by the same amount.
A pre-submission checklist closes the loop. Before files go out: artwork is vector with fonts outlined and spot colours named; raster elements are 300-600 dpi at final size; stroke weights meet the 0.25 mm print or 0.8 mm cutting minimum; DXF is in millimetres at 1:1 with closed polylines and separate notch and grain layers; dimensions state their measurement method; materials are given with denier and g/m²; hardware is named by size and finish; artwork placement is given as coordinates from two datums; tolerances are written; and packing is specified. Ten checks, about twenty minutes, against 6-15 working days per avoidable round.
One further control helps: a physical reference. Where a bag is being developed from an existing sample, that sample should be posted, measured and photographed alongside the file set, because a dimension written on a tech pack and a dimension taken off an object frequently disagree. Once digitised into a DXF and a tech pack, the reference sample can be returned and the file set reused for every re-order, which removes the largest single source of repeat-programme error. Finally, treat the file set as a commercial asset rather than as correspondence. A complete pack with artwork, geometry, BOM and tolerances lets a buyer re-quote the same bag with a different sourcing partner in a day rather than a fortnight, and that optionality is worth more than any single price concession.
The B2B Customisation View
Most delays on cosmetic pouches, vanity cases and beauty organisers trace back to one unanswered question in the brief, so the first working session is spent removing ambiguity rather than choosing colours.
The numbers a buyer can plan around: 500 pieces minimum per style and colourway, 6–10 working days to a first sample (12–15 where tooling or moulding is involved), 35–50 days to bulk completion, AQL 2.5 under ISO 2859-1 at final inspection, FOB Xiamen terms, T/T 30/70 payment.
QUANZHOU JUNYUAN BAGS operates as the custom bag specialist on the file, managing the parts of the process that brands rarely resource in-house: shade matching, component sourcing and pre-shipment inspection.
Which Brand Types Benefit Most
File discipline pays off differently depending on where a buyer is in its lifecycle. A start-up brand usually has a logo in a design tool and no technical pack at all, so the priority is producing a vector master and a one-page specification before asking anyone for a price. An established brand usually has both, and its problem is version control across seasons and across a growing number of colourways. Retailers and e-commerce sellers tend to have strong packaging artwork and weak product geometry, while gift and hospitality buyers often work from a sample they already own and need it reverse-engineered into a proper file set. File quality also decides how quickly a programme can be re-quoted. A buyer holding complete vector artwork, a DXF and a finished tech pack can put the same bag out to a second sourcing partner in a day, while one rebuilding files from an old email thread spends a fortnight before anyone can price anything.
- Start-up brands: create one AI master with outlined fonts and named Pantone references, and a one-page tech pack with dimensions and materials, before the first enquiry.
- Established brands: run a revision table across the range and freeze files per season; a change made after the freeze costs 6-10 working days per round.
- Retailers: invest in DXF geometry and carton specification, because shelf-ready packing and barcode placement are where retail files most often fail.
- E-commerce sellers: ship print-ready PDFs for any retail box or insert at the same time as the bag artwork, since packaging plates are a separate lead time.
- Gift and hospitality buyers: have an existing reference sample measured and digitised into a DXF and tech pack once, then reuse the file set for every re-order.
- Wholesalers and distributors: keep one master DXF and tech pack per style, since re-orders made from incomplete files are the most common cause of a wrong repeat shipment.
Frequently Asked Questions
Which file format should a buyer send for a cosmetic bag logo?
A vector file, ideally Adobe Illustrator AI at CC or CS6 compatibility, with EPS as an exchange copy. Fonts must be converted to outlines, strokes expanded, colours set to CMYK or named Pantone spot references and the scale stated. A PDF/X copy is useful for approval but is not a substitute for the editable master, because screens, plates and dies are all derived from the vector paths.
Can a JPEG or PNG be used for bag artwork?
Only for photographic or tonal printing, and only at 300-600 dpi at the final print size. A logo supplied as a JPEG cannot be enlarged without artefacts, cannot be separated into spot colours and cannot be converted into a cutting or debossing path without manual redrawing, which is chargeable and adds days. For a logo, always redraw to vector; the cost is small and the file is then reusable for every application.
What settings does a DXF file need for bag pattern pieces?
Millimetres, 1:1 scale, closed polylines rather than splines, one layer per panel type, with notch marks on their own layer at 3-5 mm depth and grain lines annotated. Tolerance on the die profile is about plus or minus 0.5 mm. A DXF in inches, or with open paths, will still open in CAD software and will still produce a die that does not assemble.
Why do fonts have to be converted to outlines?
Because the receiving side will not have the buyer's licensed fonts. An unconverted live font is substituted at opening, which changes letter spacing, line breaks and sometimes the entire look of a wordmark. Converting to outlines turns each glyph into geometry that renders identically everywhere, and it costs one command in Illustrator. It is the single most common cause of a logo printing differently from the brand's own artwork.
How much bleed does a print-ready bag PDF need?
Three millimetres on every edge that runs to a trim, plus crop marks and embedded fonts. Artwork printed on a cut panel needs bleed because the die or knife has a tolerance of about plus or minus 0.5 mm; without bleed, a 0.5 mm shift leaves a white sliver at the edge. For artwork printed onto a panel that is already cut, such as a logo placed 25 mm inside the seam line, bleed is unnecessary.
What is the minimum stroke weight for a debossed or laser-cut logo?
About 0.8 mm for any pressed, cut or engraved application, and 0.25 mm for screen print or heat transfer. Below 0.8 mm a die edge is fragile and wears within a few hundred impressions, and a laser path finer than that tends to scorch rather than cut. Text also needs a cap height of at least 2 mm in these processes, and 1.5 mm of clearance between adjacent elements.
Should Pantone references be included in the artwork file?
Yes, attached to each element and matched to the substrate: a TCX reference for dyed fabric, a coated or uncoated reference for print and packaging, and a Pantone Plastics reference for hardware or moulded parts. Where no reference exists, post a physical swatch. A screen render and a dyed polyester panel are not comparable, and a colour approved from a monitor is the most common source of a rejected pre-production sample.
What should a technical pack for a cosmetic bag contain?
Finished dimensions with the measurement method stated, a bill of materials with denier and g/m², coating type and colour references, hardware named by size and finish, stitch density, seam construction per join, binding method, label and hangtag positions, artwork coordinates from two datums, tolerances, packing method and carton specification with pieces per carton. It is usually a PDF with a supporting BOM spreadsheet.
How should artwork placement be specified?
As coordinates in millimetres from two fixed datums, typically the zipper line and the nearest side seam, with a tolerance of plus or minus 2 mm. A phrase such as centred on the front panel is not a coordinate, and on a bag with curved or gusseted seams there is no unambiguous centre. Placement should also keep at least 8-10 mm clear of any seam, because a print platen or press cannot reach over a bulky seam evenly.
What tolerance is realistic on a finished bag dimension?
Plus or minus 2-3 mm on soft constructions, and plus or minus 1 mm on seam allowance and 1 stitch per inch on stitch density. Where a bag must fit an insert, a case or a retail fixture, that fit should be stated as a guaranteed minimum or maximum rather than nominal, and inspected at AQL 2.5 under ISO 2859-1. Structured and moulded constructions hold tighter tolerances than soft ones.
Which file changes force a new sample round?
Any artwork change after the specification freeze, a Pantone reference change, a hardware change including zipper size or puller finish, a dimension change above 3 mm, adding or removing a print colour, changing the shell fabric or coating, and changing the interior construction. Each costs 6-10 working days, or 12-15 working days for complex constructions such as moulded EVA cases.
How should file versions be controlled across a programme?
One master file per element, revision numbers in the file names, and a single revision table in the tech pack recording what changed and when. Files should not be accepted piecemeal through an email thread. The specification freezes when sampling starts, so any revision after that point should be logged as a change with its own cost and calendar consequence rather than silently substituted.
Is a DXF file needed if the buyer only has a sketch?
Not initially. A sketch with target dimensions, reference photographs and a target quantity is enough to start a quotation. Before sampling, however, geometry has to exist in a usable form, and the buyer can either supply a DXF or ask for the pattern to be developed from the sketch. Pattern development is chargeable and adds days, so buyers with CAD capability should supply the DXF themselves.
What resolution is needed for photographic artwork on a bag?
300-600 dpi at the final print size, in CMYK, supplied as a TIFF or a layered PSD. A 72 dpi web image enlarged to print size produces visible pixelation, particularly on large panel prints. For a photographic image that will be screen printed rather than sublimated, the number of screens and the halftone screen ruling also matter, and the buyer should ask how many colours the printer plans to use.
Do packaging files need to be supplied at the same time as bag artwork?
Ideally yes, because packaging plates and print runs have their own lead time that runs alongside the 35-50 day bulk window. A retail box artwork supplied after bulk starts often arrives after the bags are finished, which either delays the shipment or forces a temporary packing solution. Box artwork should be a print-ready PDF with 3 mm bleed, dielines on a separate layer and barcode placement verified for the destination channel.
People Also Ask
What files do I need to send to get a custom bag made?
Three things: vector artwork in AI or EPS with fonts outlined and Pantone references named; a DXF of the pattern pieces if the buyer has CAD capability, in millimetres at 1:1 scale; and a technical pack with dimensions, materials, hardware, stitch density, tolerances and packing. A sketch and reference photos are enough to start a quotation, but sampling needs the complete set.
What is the difference between AI and PDF for printing?
AI is an editable vector master, which is what screens, plates, dies and laser paths are generated from. PDF is an exchange and approval format: PDF/X-1a or PDF/X-4 with 3 mm bleed, crop marks and embedded fonts is print-ready but not intended for editing. Buyers should supply both, using the AI for production and the PDF for sign-off so the approval copy matches what will be made.
Why do printers ask for vector files?
Vectors are mathematical paths, so they scale to any size without losing definition, separate cleanly into spot colours and convert directly into cutting or engraving paths. A raster image is a grid of pixels, fixed at one resolution: enlarging it produces artefacts, and converting it to a cut path requires manual redrawing. Vector artwork also keeps file sizes small and colours editable per element.
How do I write a tech pack for a bag?
Start with finished dimensions and state how they were measured, then list every material with denier and g/m², every piece of hardware by size and finish, stitch density, seam construction per join, binding method, artwork coordinates from two datums, tolerances, packing method and carton specification. Add photographs or a DXF for geometry. One page plus a BOM spreadsheet is usually sufficient for a cosmetic bag.
Request a Sample or a Written Quotation
Send the silhouette, dimensions, material preference and logo artwork, and the programme team will return a written quotation with MOQ, sampling window, bulk lead time and inspection standard.
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