The ULK450 source data describes a U-shape baby pull-up line whose material behavior is central to commissioning. Its 15-item input list includes absorbent layers, chassis webs, inner and outer waist nonwovens, waist elastic and two adhesive functions. A compatible material is therefore one that feeds, tracks, bonds and recovers within the approved product window, not merely one with the correct generic name.

The project should begin with an approved pull-up sample and layer map. Mark the core, topsheet, leg cuff, ADL, backsheet and elastic waist components, then connect each layer to a supplier roll or bulk material. The old prose also mentions tab-style diapers, but the title, technical heading and waist-material schedule identify a U-shape pull-up configuration. Taped-product capability must not be assumed without a separate tooling and process confirmation.
| Material group | Recorded inputs | Compatibility evidence |
|---|---|---|
| Skin-side and cuff webs | Hydrophilic topsheet, hydrophobic leg-cuff nonwoven, leg elastic, ADL | Roll width, basis weight, edge quality, winding direction and elastic recovery |
| Absorbent system | Fluff pulp, SAP, upper tissue or nonwoven, lower tissue or nonwoven | Approved grades, recipe target, distribution sample and lot trace |
| Backsheet | PE film | Width, print or eye-mark requirement if applicable, web tracking and bond trial |
| Pull-up waist | Waist inner nonwoven, waist outer nonwoven, waist elastic | Laminate build, elastic count and spacing, recovery after bonding and cut |
| Bonding | Construction glue, elastic glue, wetness-indicator glue | Supplier grade, application window, pattern, start-stop behavior and approved sample |
Confirm inner and outer nonwoven widths, elastic specification, roll direction and the intended laminate structure. Define where waist position and contraction will be measured.
Observe web tracking, elastic placement and bond continuity at startup, the recorded 400 ppm stable reference, and planned splices. Isolate products made during recovery.
Condition and compare retained samples using the buyer's product method. The page contains no universal waist-stretch tolerance, so the approved drawing must supply it.
These values support factory layout and test planning. They do not establish actual utility consumption, material yield or saleable output. Those results depend on the final configuration and the definitions written into FAT.
A procurement schedule should separate machine scope from consumable approval. For every input, list the owner of the specification, permitted substitute, trial quantity and acceptance method. HAINA can use that schedule to prepare unwinds and settings, while the buyer retains control of the finished-product criteria.
No. Width is only one variable. Basis weight, surface behavior, winding direction, edge condition and response to tension and adhesive also need a trial.
It is the recorded stable working speed. Compatibility still requires an agreed run duration, accepted product measurements, rejects and splice-recovery evidence.
No. The saved technical identity is a U-shape pull-up line. The generic legacy statement about tab-style diapers requires separate contract and tooling confirmation.
|
Dimensions(L×W×H8) |
38m*10m*4m |
|
Design Speed: |
450ppm |
|
Stable Working Speed: |
400ppm |
|
Rejection Rate: |
≤3% |
|
Efficiency: |
≥85% |
|
Power Source: |
380V,50HZ |
|
Machine Capacity: |
380KW |
|
Air Pressure: |
0.6-0.8Mpa |
|
Machine Weight: |
85 tons |
U-Shape Baby Pull-ups Diaper Machine
| No. | Raw materials |
| 1 | Hydrophilic NW (Topsheet) |
| 2 | Hydrophobic NW (Legcuff) |
| 3 | Elastic for Legcuff |
| 4 | ADL |
| 5 | Fluff pulp |
| 6 | SAP |
| 7 | Upper tissue/NW |
| 8 | Lower tissue/NW |
| 9 | Pe film |
| 10 | Waist inner NW |
| 11 | Waist outer NW |
| 12 | Elastic for waist |
| 13 | Construction glue |
| 14 | Elastic glue |
| 15 | Wetness indicator glue |


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