Raw and processed material-flow markers from the source diagram.
CD Pants · abstracted process-flow explainer
Diaper line cutaway atlas
A mobile-first explanation of the major component groups in the pants-style absorbent-product line: raw feeds, surge/liner merge, pad prep, elastics, insert drums, folding/bonding, final reject gates, and stacking.
Main carrier webs, conveyors, elastic paths, reject drops, and transfer routes.
Visible liner feed that joins the surge material before entering the pad stream.
Rotating drums and rotor handoffs where product pitch, orientation, or spacing changes.
/goal
Goal: turn the CD Pants line into a readable manufacturing atlas
Explain the major material feeds, forming modules, drum transfers, reject gates, and packing stages as a mobile-first cutaway guide. The route abstracts the user-provided diagram into learning cards; it does not reproduce the source image, corporate marks, or internal-use footer.
- Route lives at /diaper-line and is linked from the Playground home index.
- Every major component group has a split/cutaway visual slot plus practical description.
- The visible diagram labels are preserved as callouts so David can map the explanation back to the source diagram.
- Phone layout avoids horizontal overflow: goal, milestones, section nav, and cards scan in one column.
/diaper-line page, goal board, section map, component data, homepage link, route tests.
Eight local GPT Image 2 WebP cutaways generated, wired to cards, and contact-sheet QA passed.
Eager image loading, mobile wrapping guards, production route smoke, and full npm verification completed.
Section 1
Raw feeds, pad preparation, elastics
The top band brings fluff/wrap sheets, surge, liner, poly, flap, and elastic streams into a controlled absorbent-pad assembly path.
Mostly left-to-right with multiple web feeds entering from the right and lower-left.Raw-feed intake
01 · FD roll + wrap-sheet unwind

The large roll/unwind area is the line's raw-material throat: fluff and wrap-sheet webs are presented, guided, and tensioned before joining the absorbent-core path.
Think of it as the supply rail: wide webs enter under control, then split into liner-side and poly-side sheet paths so later stations can build the pad around a stable carrier.
- Inputs
- Sam + Fluff · FD roll · Liner-side wrap sheet · Poly-side wrap sheet
- Moves
- Unwind → Guide → Align → Feed into pad stream
- Output
- Stabilized wrap-sheet streams feeding pad debulking and core assembly.
Visible source labels
- FD
- Sam + Fluff
- Liner side Wrap sheet
- Poly side Wrap sheet
- G1
- G2
Acquisition-layer feed
02 · Surge cutter + liner merge

Surge material and liner are cut, guided, and married into a combined stream before the pad-forming stations take over.
This is where top-sheet handling becomes a laminate problem: the acquisition/surge layer has to land on the liner in the right position before the core stack gets thicker.
- Inputs
- Surge · Liner · Guide points G3/G4
- Moves
- Cut surge → Guide liner → Merge web paths → Hold registration
- Output
- Combined surge-and-liner path feeding the upper assembly.
Visible source labels
- Surge Cutter
- G3
- G4
- Surge
- Liner
- Surge & Liner
Core shaping
03 · Pad folding, spacing, cutting, debulking

The pad train turns a thick absorbent stream into repeated, correctly spaced pad units with sealed ends, optional perfume input, and reduced bulk.
This is the density-and-repeatability section: it folds the pad into shape, spaces repeat lengths, cuts the pattern, and compresses bulk so downstream folding is predictable.
- Inputs
- Absorbent pad stream · Perfume input · Combined liner/surge feed
- Moves
- Fold → Space → Cut → Tack → Compress
- Output
- Repeated low-bulk pad assemblies ready for insert/body integration.
Visible source labels
- End seal tacker
- Pad Folding Unit
- Pad Spacing Unit
- Pad cutter
- Perfume
- Pad De-bulker
Stretch-system feed
04 · Poly, OC flap, leg and flap elastic feeds

The lower Section 1 path feeds poly, flap material, and elastics so the pants product can gain stretch, fit, and leakage-control geometry.
This is the fit subsystem: thin elastic lanes and flap webs must arrive under stable tension, otherwise the final pant shape wrinkles, drifts, or loses containment performance.
- Inputs
- Poly roll · OC flap · Flap elastic · Leg elastic
- Moves
- Unwind → Tension → Guide → Place elastic into flap/body zones
- Output
- Prepared stretch and flap streams ready to join the body web.
Visible source labels
- Poly
- G17
- OC flap
- Flap elastic
- Leg elastic
- G5
Section 2
Insert handling, re-pitch, folding, bonding
The middle band uses cutoff, transfer drums, re-pitch, tucking, folding conveyors, and panel bonding to put insert geometry into the pants body.
The visible section arrow points right-to-left.Insert timing and orientation
05 · Insert tacker, cutoff, transfer, rotor, re-pitch drums

The insert train cuts and transfers discrete inserts while drums rotate them, space them, and re-pitch them for the body-web cadence.
This is the clockwork heart of the line: a continuous web becomes discrete inserts, then drum surfaces change spacing and orientation without letting registration drift.
- Inputs
- Prepared insert web · Cutoff timing · Transfer drum vacuum surface
- Moves
- Tack → Cut off → Transfer → Rotate → Re-pitch
- Output
- Timed inserts aligned to the downstream folding and panel-bonding cadence.
Visible source labels
- Insert tacker
- Insert Cut off unit
- Insert X’fer drum
- Insert rotor
- Insert Re-pitch drum
- Roller after re-pitch
Body forming
06 · Panel addition, tucker, bi-fold, folding, panel bonder

Panels are added to the insert stream, tucked, folded, twisted into position, and bonded so the pant body can hold its final garment geometry.
This is where flat laminate starts behaving like a garment: panels join the insert, folding rails create symmetry, and the bonder locks the panel/body interfaces.
- Inputs
- Panel feed · Re-pitched insert stream · Fold conveyors
- Moves
- Add panel → Tuck → Bi-fold → Twist → Bond
- Output
- Folded and bonded pant-body assemblies moving toward final finishing.
Visible source labels
- Panel addition to insert
- Product tucker unit
- Bi-Fold Conveyor
- Product folding conveyor
- Twist conveyor
- Panel Bonder
Section 3
Final cut, rejection, pant output, stacker
The bottom band compresses, cuts, rotates, rejects bad products, sends good pants to bulk pack, and stacks them for downstream handling.
The visible section arrow points right-to-left into stacking.Final separation and quality routing
07 · Press belt, final cutoff, product rotor, reject gates

The finishing path presses the web, cuts final products, transfers them through the product rotor, and drops rejected units before good products continue.
This section turns continuous assembly into individual products and protects the output stream: reject gates remove bad units before packing sees them.
- Inputs
- Folded body web · Aperture-module feed · Rotor/transfer drum timing
- Moves
- Press → Final cut → Rotate → Transfer → Reject bad units
- Output
- Accepted pant products continue left; rejected units drop out at Reject 2 or Reject 3.
Visible source labels
- Press belt Before final cut off
- final cut off
- Product Rotor
- X’fer drum after product rotor
- (C 23)
- Reject 2
- Aperture module
- (C 26)
- Reject 3
Packing handoff
08 · Pant output, bulk pack, stacker

Finished pants move into the pack lane and stacker, where individual products become a controlled pile for downstream packaging.
This is the line's exit discipline: speed is converted into countable stacks so packaging can take over without losing orientation or count accuracy.
- Inputs
- Accepted pant products · Bulk pack conveyor · Stacker infeed
- Moves
- Convey → Orient → Count → Stack
- Output
- Stacked pant products ready for final package handling.
Visible source labels
- Pant
- Bulk pack
- Stacker