Performance report · diaper core · deterministic model

Absorbency Is Not One Number

Absorbency ≠ one number / 吸收性能不是一个数字 · materials-to-performance cockpit for diaper core design

Convert stack choices into predicted performance, failure modes, uncertainty, and the next lab test.

Total Capacity / 总容量

620 g

target ≥ 580 g

Acquisition Time / 吸收导流时间

18 sec

likely 14–24 sec

Rewet / 回渗

0.21 g

target ≤ 0.30 g

Retention Under Pressure / 加压保液率

83%

AUL-calibrated

Leakage Risk / 侧漏风险

7%

likely 3–15%

Gel Blocking Risk / 凝胶堵塞风险

Medium

watch SAP density

Comfort Score / 舒适性评分

8.1 / 10

premium-thin fit

Mechanism before metric / 机理优先

insult → penetration → acquisition → distribution → SAP swelling → pressure retention → rewet / leakage / comfort

1

topsheet / 面层

permeability · hydrophilicity · pore openness

2

ADL / 导流层

void volume · wicking · acquisition

3

absorbent core / 吸收芯体

SAP ratio · pulp ratio · density · thickness

4

backsheet / 底膜

breathability · barrier integrity

Report map / 报告地图

Decision-first overview

Scan the mechanism, failure mode, calibration status, and decision rule before opening the live model cockpit.

01

Performance Profile / 性能画像

Absorbency is a sequence, not a bucket.

The same absorbent mass can perform differently depending on how quickly fluid enters, spreads, swells, locks, and survives pressure. 相同的吸收材料用量,可能因为进液、扩散、膨胀、锁液和受压表现不同而产生完全不同的产品性能。

02

Material Stack / 材料层结构

Layer choices become transport constraints.

Skin side → topsheet / 面层 → ADL / 导流层 → absorbent core / 吸收芯体 → backsheet / 底膜 → garment side.

03

Causal Machine / 因果机理

Start with the mechanism before showing the metric.

SAP ratio drives swelling and retention; pulp ratio drives wicking; ADL void volume drives temporary storage; topsheet permeability drives intake.

04

First 60 Seconds / 前60秒流体事件

Leakage can happen before total capacity is exhausted.

0s insult lands / 尿液冲击; 5s topsheet penetration / 面层渗透; 15s ADL temporary storage / 导流层临时储液; 30s lateral distribution / 横向扩散; 60s SAP swelling and lock-up / SAP膨胀锁液.

05

Performance Tradeoff Map / 性能权衡图

Pareto frontier / 帕累托前沿 marks designs that dominate on dryness protection and thinness.

Balanced Core, SAP-Heavy Ultra-Thin, Pulp-Rich Fast Acquisition, Overnight Reserve Core, Eco Fiber Blend, Budget Core, and Premium Dryness Core are compared with direct labels, not rainbow legends.

06

Failure Mode Panel / 失效模式面板

Failure modes explain why, not just how much.

Gel Blocking / 凝胶堵塞, Rewet / 回渗, Local Saturation / 局部饱和, Slow Acquisition / 导流吸收过慢, and Fit Leakage / 贴合侧漏 are shown with drivers and confirming lab tests.

07

Sensitivity Analysis / 敏感性分析

Different outcomes have different control knobs.

Capacity is SAP-driven. Acquisition is ADL/topsheet-driven. Rewet is retention-under-pressure-driven. Leakage is distribution + fit + timing-driven.

08

Lab Calibration / 实验校准

Lab data does not replace the model. Lab data calibrates the model.

Strike-through time, rewet, AUL, CRC, wicking distance, acquisition time, retention under load, and leakage bench tests are mapped to residuals and coefficient suggestions.

09

Prediction Intervals / 预测区间

The model says what it predicts and where it is uncertain.

Acquisition time: 18 sec, likely range 14–24 sec. Rewet: 0.21 g, likely range 0.12–0.35 g. Leakage risk: 7%, likely range 3–15%.

10

Next Experiment / 下一步实验推荐

Highest uncertainty driver: SAP retention under compression at target core density.

Recommended test: AUL + repeated acquisition/re-wet under target compression. Expected value: High; it directly resolves uncertainty in rewet and leakage risk.

11

Model Card / 模型卡

Transparent, deterministic, physics-informed empirical model.

Fields: Model type / 模型类型, Inputs / 输入, Outputs / 输出, Calibration data / 校准数据, Known limitations / 已知限制, Valid use cases / 适用场景, Invalid use cases / 不适用场景, Version, Owner, Last reviewed.

12

Decision Rule / 决策规则

Pilot only when leakage, rewet, second-insult acquisition, gel blocking, comfort, calibration residuals, and critical failures all clear threshold.

No universal best core: the best decision depends on daytime, overnight, premium-thin, budget, or supplier-substitution use case.

topsheet面层ADL buffer导流层SAP gel latticeSAP凝胶格pulp capillary web绒毛浆芯吸网backsheet底膜fluid path / 液体路径
Thicker SAP/pulp sheets respond to live ratios.Lifted layers preserve the transport sequence.Dashed path anchors mechanism before metrics.

Predicted outcomes / 预测结果

Total capacity
620 g
Acquisition time
18 sec
Rewet
0.21 g
Leakage risk
7.03%
Gel blocking
medium
Primary mechanism
gel blocking

Fluid Viscosity Profile

025507510028Viscosity Index / 粘度指数lowhigh

Choosing a profile instantly updates the predictions. Current: Urinary event / 尿液事件

Unit cost

$0.31

Gross margin

27.4%

Prototype Comparison / 样品对比

Click any row to load that prototype

PrototypeCap.Acq.RewetLeak$/ea
Balanced Core均衡芯体620 g18s0.21g7.03%$0.31
SAP-Heavy Ultra-Thin高SAP超薄669 g18s0.21g9.98%$0.33
Pulp-Rich Fast Acquisition高绒毛浆快吸收604 g18s0.21g4.43%$0.29
Overnight Reserve Core夜用储备芯体725 g18s0.16g6.93%$0.32
Eco Fiber Blend环保纤维混合614 g18s0.22g6.83%$0.29
Budget Core经济型芯体576 g22s0.28g8.9%$0.29
Premium Dryness Core高端干爽芯体654 g17s0.16g5.91%$0.31

Tradeoff Map / 权衡图

Drier ↑ vs cheaper ← · dashed line = Pareto frontier

Click bubble or row

$0.28$0.29$0.31$0.32$0.338284879092BalancedFast intakeOvernightEco blendPremium drydryness protection / 干爽评分unit cost / 单片成本Pareto frontiercapacity / 容量520g650g780g

Dynamic Impact Simulation / 动态冲击模拟

Fluid Event Timeline / 流体事件时间线

018355370risk band above 58 kPa0s30s60sPressure (kPa)Time (sec)
Impact ResilientImpact Vulnerableimpact resilient

Sensitivity Drivers / 敏感性驱动

Signed tornado: left reduces risk, right increases it.

ADL void volume导流层空隙体积reduces · 0.6
reduces
increases

Increasing ADL void volume reduces leakage by buffering the second insult.

Topsheet permeability面层渗透性reduces · 0.3
reduces
increases

Increasing topsheet permeability reduces intake pooling.

ADL wicking导流层芯吸reduces · 0.3
reduces
increases

Increasing ADL wicking reduces local saturation.

Core density芯体密度increases · 0.1
reduces
increases

Increasing core density improves thinness but stresses distribution.

Insult volume单次尿量increases · 0.1
reduces
increases

Increasing insult volume raises capacity demand.

Failure Classifier / 失效模式分类器

Gel Blocking / 凝胶堵塞

medium
Diagnostic heatmap / 诊断热图

Swollen SAP reduces permeability near the intake zone and prevents deeper fluid distribution.

Drivers: SAP ratio / SAP比例 · core density / 芯体密度 · distribution efficiency / 扩散效率

Test: Repeated strike-through + rewet + AUL at target density

Rewet Under Pressure / 受压回渗

low
Diagnostic heatmap / 诊断热图

Liquid is absorbed but not locked strongly enough when wearer pressure compresses the core.

Drivers: SAP AUL / 加压吸收能力 · retention under pressure / 加压保液 · wearer pressure / 穿着压力

Test: Rewet / wetback + retention under load

Local Saturation / 局部饱和

low
Diagnostic heatmap / 诊断热图

The insult zone fills faster than liquid can spread laterally through the ADL/core interface.

Drivers: ADL wicking / 导流层芯吸 · ADL void volume / 导流层空隙体积 · pulp wicking / 绒毛浆芯吸

Test: wicking distance + core acquisition time

Intake Bottleneck / 进液瓶颈

low
Diagnostic heatmap / 诊断热图

Topsheet and ADL intake readiness lag behind insult rate, causing surface pooling.

Drivers: topsheet permeability / 面层渗透性 · hydrophilicity / 亲水性 · insult rate / 尿液冲击速率

Test: strike-through time + repeated strike-through

Capacity Exhaustion / 容量耗尽

low
Diagnostic heatmap / 诊断热图

Total absorbent reserve is not aligned with repeated insult volume and category positioning.

Drivers: total capacity / 总容量 · SAP CRC / 离心保液能力 · insult volume / 单次尿量

Test: CRC + leakage bench test

Lab Calibration / 实验校准

Lab data does not replace the model; it calibrates residuals and coefficient assumptions.

test familypredictionlab resultresidualcoefficient guidance
rewet / wetback / 回渗 / 返湿0.21 gg+0.18Reduce retention coefficient for high-density or high-pressure cases.
leakage bench test / 侧漏台架测试7.0 %%+1.4Increase leakage penalty for local saturation and channeling risk.
strike-through time / 渗透时间18.1 secsec+1.0Lower ADL/topsheet acquisition contribution until strike-through residual closes.

status / 状态: partiallyCalibrated

Supported: 渗透时间 · 目标压缩下重复导流 + 回渗 · 回渗 / 返湿 · 加压吸收能力 · 离心保液能力 · 芯吸距离 · 加压保液 · 侧漏台架测试 · 压缩恢复

Prediction Intervals / 预测区间

Acquisition time / 吸收导流时间13.0723.07 sec

point=18.1 sec · threshold=24 sec

Rewet / 回渗0.10.32 g

point=0.21 g · threshold=0.35 g

Leakage risk / 侧漏风险2.0312.03 %

point=7.0 % · threshold=15 %

Retention under pressure / 加压保液76.7589.25 %

point=83.0 % · threshold=78 %

Next Experiment / 下一步实验

repeated acquisition + rewet under target compression

Leakage and rewet predictions are close to threshold; this test resolves the dominant uncertainty driver before pilot.

Expected decision value
high
Score
1.25
Affected outcomes
acquisitionTimeSec · rewetG · leakageRiskPct

Decision changer / 改变决策的结果: If second-insult rewet exceeds 0.35 g or leakage exceeds 15%, this prototype should not proceed to pilot.

Model Card / 模型卡

Model type
transparent physics-informed empirical rules
Inputs / 输入
material stack layer indices · use-case insult conditions · fit-system parameters · manual lab calibration rows
Outputs / 输出
performance profile · failure-mode panel · sensitivity tornado · prediction intervals · next-test recommendation
Calibration data
partiallyCalibrated
Version
acs-rule-model-0.4.0

Limitations: MVP is not CFD or porous-media FEA · coefficients are heuristic until family-specific lab residuals are collected · not valid for raw-material chemistries outside diaper absorbent cores

Audit Trail / 审计追踪

prototypeEditEngineer

Material stack parameters edited in browser model workflow.

2026-06-04T09:00:00Z

labResultEntryLab Contributor

Calibration rows evaluated; status=partiallyCalibrated.

2026-06-04T09:15:00Z

modelVersionChangeModel Owner

Rule-model version and coefficient assumptions recorded for report export.

2026-06-04T09:30:00Z