Absorbent Core Studio / 吸收芯体性能建模平台

Absorbency Is Not One Number

A materials-to-performance report for diaper core design

吸收性能不是一个数字：纸尿裤芯体设计的材料到性能报告

Convert material stack choices into predicted performance profiles, failure-mode explanations, and recommended lab tests.

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

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 / 先展示机理

fluid insult → topsheet penetration → acquisition → lateral distribution → SAP swelling → permeability loss → retention under pressure → rewet / leakage / comfort outcome

topsheet / 面层

permeability · hydrophilicity · pore openness

ADL / 导流层

void volume · wicking · acquisition

absorbent core / 吸收芯体

SAP ratio · pulp ratio · density · thickness

backsheet / 底膜

breathability · barrier integrity

Absorbency is a sequence, not a bucket.

Layer choices become transport constraints.

Start with the mechanism before showing the metric.

Leakage can happen before total capacity is exhausted.

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

Failure modes explain why, not just how much.

Different outcomes have different control knobs.

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

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

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

Transparent, deterministic, physics-informed empirical model.

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

topsheet permeability / 面层渗透性90ADL void volume / 导流层空隙体积80SAP ratio / SAP比例42pulp ratio / 绒毛浆比例38core density / 芯体密度0.32core thickness / 芯体厚度5.5compression pressure / 压缩压力34

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: gelBlocking

Prototype Comparison / 样品对比

Prototype	Capacity	Acq.	Rewet	Leakage	Comfort
Balanced Core / 均衡芯体	620 g	18 sec	0.21 g	7.03%	8.1
SAP-Heavy Ultra-Thin / 高SAP超薄	669 g	18 sec	0.21 g	9.98%	8.3
Pulp-Rich Fast Acquisition / 高绒毛浆快吸收	604 g	18 sec	0.21 g	4.43%	8.1
Overnight Reserve Core / 夜用储备芯体	725 g	18 sec	0.16 g	6.93%	7.9
Eco Fiber Blend / 环保纤维混合	614 g	18 sec	0.22 g	6.83%	8.1
Budget Core / 经济型芯体	576 g	22 sec	0.28 g	8.9%	7.3
Premium Dryness Core / 高端干爽芯体	654 g	17 sec	0.16 g	5.91%	8.4

Fluid Event Timeline / 流体事件时间线

surface pooling

ADL loading

15s

core uptake

30s

lateral spread

60s

SAP swelling

Sensitivity Tornado / 敏感性龙卷风图

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

Topsheet permeability / 面层渗透性reduces · 0.3

ADL wicking / 导流层芯吸reduces · 0.3

Core density / 芯体密度increases · 0.1

Insult volume / 单次尿量increases · 0.1

Compression pressure / 压缩压力increases · 0.0

SAP ratio / SAP比例increases · 0.0

Failure Classifier / 失效模式分类器

Gel Blocking / 凝胶堵塞

medium

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

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

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

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

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

First 60 seconds / 前60秒

insult lands / 尿液冲击

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