Production Process 500,000 Units a Month— Bulk Starts on a Signature, Not a Promise.

Runs fail quietly: a panel cut a millimetre wide, a batch stitched in a substitute thread, a carton sealed before the marking is read. None shows until the dock, where the fix costs a container. So the check is written where the part is made, and the fault stops there. Send the build, the quantity and the date; the sequence comes back named.

Finished black and blue bags racked in a row on the LeelineBags assembly floor, with operators working behind them
  • 6gates, approval to carton
  • 7days from the signed list
  • 100pieces minimum on a run

The line, gate by gate

Approval Binds the Run, Packing Closes It

Nothing releases until the gate before it has signed off. Read any row across: what the floor does, what the buyer holds when it is done, what catches a fault. The checks are named because they make the sequence auditable.

A leatherworker holding two folded panels of tanned hide up to the light beside a stack of swatches
01

Material selection and sampling

Fabric, lining and hardware are proposed to the brief; the first sample is built on the bulk machines.

Closes with

A first physical sample and a signed material list

Caught here
  • Incoming fabric cleared to the tech pack before it reaches the table
  • Weight and hand of a roll compared with the approved standard
  • Colour matched on the approved swatch, not the screen
A factory contact talking across a table of open colour cards to a buyer seated opposite, sample sheets pinned on the wall behind
02

Development and approval

The second sample carries the revisions and runs the durability and water-resistance tests the design calls for.

Closes with

A tested second sample, approved in writing

Caught here
  • Second sample built in the bulk material and bulk colour
  • Wear and water-resistance tested on that run of the sample
  • Written approval logged before bulk cutting begins
Hands cutting a leather panel with a craft knife on a bench surrounded by stitching awls, dividers and hole punches
03

Cutting

The pattern is nested and cut — CNC table, laser or die — with the marker laid to waste first.

Closes with

Panels cut to the final template

Caught here
  • First bundle compared to the template before the line is released
  • Pieces from the first and last cut of the run set side by side
  • Bundle card stays with its stack, so a mis-pick surfaces before assembly
A heat press transferring a white monogram onto the front of a pink canvas tote
04

Printing and sewing

The mark goes on first — screen, digital or heat transfer — before seams run in the specified thread.

Closes with

Panels printed and stitched to the approved sample

Caught here
  • Print position registered to the sample before the batch runs
  • Stitch density held to the sample on straight run and bar-tack
  • Reinforcement added at strap and handle joins
A wide production hall of sewing operators at rows of machines stitching pink bags under strip lighting
05

Assembly and finishing

Panels, lining, hardware and fittings meet on the line; a finished bag is matched back to the approved sample.

Closes with

Finished bags with hardware and lining fitted

Caught here
  • Fit checked on a bag as it leaves the line
  • Hardware matched to the specified type, finish and size
  • Thread trimmed and the bag checked clean before inspection
A leather handbag resting in an open black presentation box with a coral lining, on a wooden bench
06

Inspection and packing

A bag is drawn and inspected for material, workmanship, measurement and function, then packed to the plan.

Closes with

Inspected bags, packed to the shipping list

Caught here
  • Pre-shipment draw to AQL 2.5 majors, 4.0 minors
  • Zip, clasp and buckle cycled on the sample bag from the draw
  • Carton labels verified to the packing list before sealing

What is signed, and when

The Paper Trail, Signed and Released

A gate is only as good as the document that records it. The ledger below names the document written at a gate, whose signature releases it, and what comes next — paper a buyer can hold the floor to.

01Approved material listBuyerRelease to sampling — the first sample is built to this list
02Signed second sampleBuyer, on the physical pieceRelease to bulk — no panel is cut before this exists
03Pattern and marker recordPlant QC leadRelease to print and sew — the approved file governs the run
04Seam and print approved samplePlant QC lead, matched to the signed sampleRelease to assembly — a drifting seam is stopped at the bundle
05Final bag proofed to the approved sampleLine QC, checked bag by bagRelease to inspection — a bag with a mismatched hardware fit is held
06Inspection report and packing listInspector and packer, countersignedRelease to ship — the carton is sealed to a signed list

Opening a run

Proved at the Sample,
Held to the Date

A production date is worth having only if it survives the sample. The terms below are settled before the first bundle moves, so the window on the purchase order is one the floor has already planned around.

Order floor100 pieces, one style
  • Priced as a single run.
  • A second style is quoted as its own run.
First sample7 days after approval
  • Counted once the material list is fixed.
  • A physical piece, before bulk opens.
Bulk window15–30 days after approval
  • Runs off the approved second sample.
  • Covers cutting, print, sew, finish and inspect.
Sampling feeits own line, credited on bulk
  • Quoted with the first sample.
  • Deducted from the production invoice once the run is placed.

Why it holds

One Floor, One Schedule

A sequence is only as strong as the floor underneath it. The figures below are why a gate here can be fixed where it happens instead of blamed across a supply chain.

20lines

Nothing is sent out

Cutting, printing, stitching, assembly and inspection run on the same twenty lines. A fault is worked on the floor that is holding the panels.

50,000m²

A gate and its neighbour, one roof

The floor area is what lets a gate and its neighbour share a schedule. There is no truck between printing and assembly to lose a day or a bundle.

500+on the floor

Room for a second build

The headcount is spread across the twenty lines, so a second style does not wait for the first to clear the floor. Its own slot opens while the other run is still moving.

Rows of industrial sewing machines under strip lighting on the LeelineBags production floor

Sequence to date

Name the Build. The Window Comes Back.

One floor holds the whole sequence, so a date comes back as a schedule, not an estimate — planned onto the lines that carry it.

Running the order

Frequently Asked Questions About Production Process

The questions that come up once a run is open, answered where their terms already sit above.

The signed sample passed — what keeps the bulk run identical to it?

The signed sample itself. It stays on the floor for the run, and the gates after approval are measured to the physical piece, not a drawing — the cut to the pattern, the stitch to the stitched sample, the finished bag to the piece that was passed. Drift shows up as a difference on the table, not as a complaint after the cartons land.

A fault shows up after a gate has closed — does the whole run stop?

It is worked at the gate that produced it, not carried forward and patched downstream. A fault caught in assembly traces back to the bundle that carried it — the cut, the seam or the hardware pick — and only that bundle is held while the rest of the run keeps moving. That is the difference between correcting a batch and stopping a delivery.

I need a change after the sample is signed — how late can it still go in?

Up to the gate that would have to be re-opened. A material change stops at the approved material list; a structure change stops at the signed sample; a marking change stops before the print batch runs. Past those points the change is a new build with its own sample, because a change made after the gate has no standard left to test it.

Is a reorder the same build, or does it start from a new brief?

The same build. The pattern, the print plates, the thread and hardware specification and the lined-in sample are held to the style, so a repeat opens on what was approved, not on a fresh brief. The gates remain, but the development gate is already satisfied — the first delivery proved it.

The PO is placed — how much of the run do I actually see?

The whole floor, through one person. The contact who took the brief works the same building as the lines, so a question about a single bundle is answered by walking to it instead of ringing an agent or a sister company. Nothing in the run is invisible from where that person stands.

Two styles in one order — does the second queue behind the first?

No. A style keeps its own pattern, print plate and tooling, and it also takes its own slot on the line, priced and scheduled apart from the rest. What does not split is the oversight: the project contact runs the styles on one calendar so cutting and packing land together.

What does the carton carry when it lands?

The bags packed to the agreed packing list, in the agreed sleeve, fold and divider, with the carton labelled to that list. The inspection report written at the last gate travels with it, so a discrepancy on arrival is matched to a document, not to memory.

Open the sequence

Send the Build.
The Gates Are Ready.

A brief that names the style, the quantity and the date gets a sequence back — the sample window, the bulk window and the gate the run opens on, stated before the first bundle moves.

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