Case Studies / product integration
Start with an existing heating eye-mask sample with a documented electrical rating, layer stack and timed controls. Discuss the sample configuration and OEM adaptations for your product.
Customer value / Product upgrade
Bring heating into a soft wearable and address the thermal, fit and product-range requirements together.
Product challenge: local warmth with cold edges.
A planar heating layer distributes heat generation across the intended footprint. Matching that footprint with the foam and textiles addresses the heat path to the contact surface.
Upgrade focus: more consistent warmth across the intended contact area.
Product challenge: adding heating without a bulky, rigid insert.
The flexible heating film integrates within the six-layer textile assembly of the existing foldable sample.
Product value: a heating function within a soft, wearable format.
Product challenge: adding a differentiated heated model to a product range.
The existing sample combines heating, three settings and a timer. OEM adaptations can address geometry, materials, power and optional NTC feedback.
Product value: a concrete sample for evaluating your own heated product variant.
The improvement in temperature uniformity is evaluated on the assembled product under defined contact conditions.
Existing sample / OEM integration
The six-layer eye-mask sample brings the heating film, textile stack and timed controls into one assembled product. Start your review with this configuration. XIHE helps define the heating footprint, electrical terminations and validation priorities for your adaptations before you commit to tooling and mass production.
Discuss OEM Customization01 / Product problem
XIHE has an existing eye-mask sample combining a graphene heating layer, a six-layer textile assembly and timed three-setting controls. Use this configuration as a concrete starting point for your OEM discussion. Review the sample against your product requirements, then define any changes to geometry, power, textiles, connections or optional NTC sensing.
Integration requirements
Published product specifications
Values are resolved from the Evidence Registry records for the supplied product sheets. Control settings do not establish measured contact-surface temperatures, and the charging-supply recommendation is separate from rated heating power.
Review the existing eye-mask sample, then agree the configuration and validation for OEM changes.
Product in use / Contact and controls
The textile assembly follows the face while the control button stays accessible on the outer surface. Strap tension and foam compression affect contact pressure and the heat path.
Evaluate the contact-surface response across the intended fit range at each setting, including warm-up and the end of the timed cycle.
02 / Integration structure
The sheet places the graphene heating layer between the first Lycra layer and the memory foam. Heat reaching the contact face therefore passes through the memory foam, second Lycra layer and flannel. Compression of the foam changes this thermal path; measure the contact surface as well as the heater. The sheet does not resolve the internal electrode or encapsulation construction.
The nasal cut-out, electrode ends and lead attachment can concentrate current or mechanical strain. Review electrode continuity, contact resistance and strain relief together. A smooth-looking thermal image does not establish that a terminal will survive repeated pulling or folding.
The current eye mask has no NTC sensor. Its published controls specify multiple temperature settings and a timed operating cycle. NTC sensing is available as an OEM customization; sensor placement, thermal coupling, controller compatibility and fault response are defined for that customized assembly.
Assembly detail
Six layers in the order shown by the product sheet, from outer surface to contact surface. The heating layer sits above the memory foam in this published stack.
Outside → Contact surface
Heat from layer 03 passes through memory foam, inner Lycra and flannel to reach the contact surface.
Electrical interpretation / Derived from registered ratings
The published rating corresponds to a nominal 1 A load, 5 ohms equivalent resistance and 1.25 Wh for 15 minutes of continuous operation. These are reference calculations, not measured current, heater resistance or battery runtime; controller duty cycle and circuit losses affect actual operation.
The heating material is one part of the product. Film, terminals, sensing, controls and the textile assembly need an agreed supply scope for each OEM project.
Thermal interpretation
Spatial uniformity describes variation across an area. Control stability describes variation over time at one location.
Product setting 35°C
Contact-facing view / SchematicProduct setting 45°C
Contact-facing view / SchematicProduct setting 55°C
Contact-facing view / SchematicMaximum minus minimum temperature across a defined contact-surface region, at the same instant and operating condition. Define whether seams and the bridge are inside that region before testing.
Measure temperature variation at fixed contact-surface locations using external test probes. These measurement probes are test equipment, not built-in NTC sensors. Stability at one point does not establish uniformity across the mask.
Record warm-up, overshoot and recovery after a change in fit or contact load using external reference probes. Compare heater and contact-surface temperatures on a shared time axis over the timed cycle.
03 / Engineering validation
Use the existing sample as your starting point. For OEM changes, review fold lines, lead exits and foam compression together, then agree the verification needed before tooling and pilot production.
| Integration challenge | Possible physical mechanism | Proposed verification method | Engineering decision to evaluate |
|---|---|---|---|
| Uneven contact-surface temperature | Edge heat loss, foam compression or changing fit alters the local thermal path. | Map the contact region with external calibrated measurement equipment under representative contact loads at each setting. | Heating footprint, textile stack and operating settings. |
| Fold or terminal hotspot | Local resistance changes at an electrode end, bend line or lead joint. | Measure resistance and thermal distribution before and after defined bend and cable-pull tests. | Electrode geometry, exclusion zones and strain relief. |
| Insulation damage | Compression, moisture or abrasion compromises encapsulation. | Inspect edges and seams; define appropriate insulation testing before and after mechanical and environmental conditioning. | Encapsulation, edge seal and care instructions. |
| NTC fault in an optional customized assembly | Only for an NTC-equipped customization: a disconnected, shorted or detached sensor gives an invalid input. | For the customized design, inject defined sensing faults in a controlled setup and record the protective response. | Customized controller compatibility, fault detection and protection. |
Mechanical integration / Sample adaptation
The existing sample provides a concrete reference for the textile assembly and foldable format. OEM changes can address the active area, fold path, terminals, materials and optional NTC architecture.
04 / Development stage
Review the existing eye-mask sample, then agree the configuration and validation for OEM changes.
Engineering handoff records
Explore the validation framework →
Share your product drawing, heating area, target temperature and electrical supply. Start with the existing sample and identify the adaptations your product needs.
Request an Engineering EvaluationEvidence scope
Product specifications, engineering calculations and proposed verification answer different questions.
| Information | Source and scope |
|---|---|
| Product configuration | The Evidence Registry records the supplied product-sheet ratings, controls and weight for the existing sample. XIHE confirms that the standard product has no NTC. |
| Electrical reference calculations | The registered reference calculation is derived from published ratings. It is not a measured current, heater resistance or battery-runtime result. |
| Contact-temperature distribution | The coloured diagrams are conceptual. They do not establish measured uniformity, contact temperature or an achieved temperature tolerance. |
| Durability and design changes | The proposed tests and design responses are an engineering evaluation plan. Separate material-test records need a documented sample and configuration link before being attributed to this assembled eye mask. |
Technical FAQ
A nominal temperature setting does not, by itself, define the contact-interface temperature. Actual temperature depends on heater output, through-plane thermal resistance, foam compression, contact conditions and environmental heat loss. The published settings do not establish the controller circuit or its duty cycle.
The memory foam sits between the heating layer and the inner Lycra and flannel. Compression can change layer thickness and thermal contact, altering the local heat path. The magnitude and direction of the temperature change require measurements on the assembled product under defined loads.
Geometry, electrical termination and local mechanical strain can affect current distribution and resistance. These are locations to investigate, not confirmed defects in this eye mask. Compare electrical measurements and thermal maps before and after defined mechanical conditioning.
Specify bend radius, direction, cycle count, electrical state and lead restraint. Record resistance and contact-surface temperatures before and after the sequence on identified assemblies. A folding product photograph does not establish cycle life, and a separate film-sample result cannot automatically be assigned to this eye mask.
No. The standard eye mask has no NTC sensor. NTC sensing is available as an OEM customization, with sensor placement, controller compatibility and fault response defined for the customized assembly. External temperature probes used during testing are not built-in product sensors.
No. The diagrams illustrate the published 35, 45 and 55 degrees Celsius settings. They are not measured thermal images or numerical simulations. Uniformity requires a defined measurement region and simultaneous surface-temperature readings under stated operating and contact conditions.
05 / Next step
Review component scope, check the Engineering evidence, and bring your project requirements to a Technical Review.
Review the component and supply scope.
Define the validation record the decision needs.
Share the geometry, electrical input and development stage.
Discuss the existing eye-mask sample, your target configuration and the engineering review for OEM adaptations.
Request an Engineering Evaluation