Varying joint area rates in a stretchable laminate sheet generate differential stretching stresses, resolving uneven leg fitness and skin irritation.
Continuous pull-on diaper manufacturing method using stretched leg elastic members placed on adhesive areas to prevent removal and ensure welding strength.
A method for producing carboxymethyl cellulose using non-oxidized alkali-cellulose and monohalo-organic compounds.
Dual gel permeation rates in a water-absorbing sheet resolve the trade-off between rapid liquid uptake and low re-wet across varying urine salt concentrations.
Segmented lotion patterns minimize overlap over intermediate layer channels, maintaining adhesive bond strength and fluid acquisition.
Ultrasonic bonding creates apertures in a polymeric film layer to transmit moisture vapor, resolving leakage prevention versus moisture trapping contradictions.
A galvanic wetness sensor generates power from liquid contact to transmit electromagnetic signals indicating moisture levels.
Recessed surfaces facilitate mixing of fibers and resin, enabling precise composition control without large-scale apparatus complexity.
Apertured film with random light trap micro-pits reduces 75° gloss below 3.5 while maintaining softness for absorptive devices.
A disposable absorbent article includes a tear away section defined by a line of weakness and a reinforcing element.
Precise reactor wall temperature and atmosphere dew point control prevent equipment adherence while maintaining damage resistance.
A holding body with recessed regions secures variable thickness absorbent materials via localized suction for smooth transfer.
Differentiated anvil protrusion patterns enable immediate identification of defective units, resolving inconsistent weld strength caused by chipped anvils.
Curved holding pad geometry maintains secure contact while preventing wrinkles during the rotation and transfer of thick diaper absorbers.
A synthetic surfactant-free hydrophilic finish applied to nonwoven topsheets using thermally denatured water-soluble proteins.
Steam condensate reduces dissolved oxygen in monomer solutions, simplifying inertization and lowering inert gas consumption during polymerization.
A perforating apparatus uses linearly moving deformation members to create precise holes in advancing webs without slowing production speed.
Protruding storage layer fibers interpenetrate the acquisition layer to eliminate adhesive barriers and restore continuous fluid communication.
Differential peel and shear forces between belt and pad closures prevent unintentional loosening while allowing easy removal.
Continuous extension sections with vertical elastic members prevent lateral leakage by maintaining leg opening width and eliminating seam exposure.
A segmented absorbent core uses longitudinal trenches and density gradients to diffuse bodily fluids across the skin-facing layer.
A water-absorbent resin applies a hydrophobic surface coating to prevent moisture-induced aggregation and blocking in piping during storage.
A dual fastening system with a decoupled zone distributes tension across the front waist region, preventing material deformation and hook exposure to skin.
Curled flange portions on elastomeric waist regions create rigid grasping points that resolve the trade-off between garment aesthetics and seam detectability.
Separate cotton and modal yarns twist together to resolve linting issues while maintaining high absorbency in terry fabrics.
An absorbent article ear laminate achieves a bond density of at least 4% to prevent delamination while maintaining stretch capability.
Through-flow belt drying manages pore opening and area occupancy to eliminate undried substances in high solid content hydrogel processing.
Cold drawing below the glass transition temperature creates voids through phase separation, reducing density while maintaining tensile properties.
A universal chassis with variable width securement portions accommodates diverse body sizes through dynamic folding mechanisms.
Distinct printed designs on stretchable and non-stretchable regions compensate for differential contraction, preventing visible distortion of design elements.
Applying a protective coating to hollow polymer spheres enhances mechanical stability without reducing absorption capacity.
A holding fixture attaches a sensor band to an absorbent article outer surface without internal conductors.
Segmented cut portions enable adjustable tail holes, resolving gender-specific fit issues.
Communicating suction zones prevent air pockets that cause web stretching and manufacturing defects.
A fiber assembly uses thickness-direction fibrils to transmit liquids across the surface.
A water-absorbing polymer structure gains permeability through contact with a salt containing a divalent metal cation and an organic base anion.
Integrated RFID tags merge user identification with soiling detection to eliminate manual inspection errors.
Low-vapor-pressure diisocyanates eliminate cytotoxic extractables while maintaining rapid absorption.
Segmented elastic belt laminates position outer sheet folds over the center chassis to resolve contradictions between uniform gathering and breathability.
An elastic sling creates a fluid-impervious pouch inside the chassis, managing bedwetting while maintaining an underwear-like appearance.
Elastic members overlap the joining unit to maintain leg gathers and prevent side leakage.
A disposable sensor and permanent device detect urine, feces, temperature, and movements in diapers.
Integrating fatty acid particles into the absorbent core resolves odor control limitations by neutralizing gases while maintaining moisture absorption.
A composite wound dressing uses a porous first layer for capillary fluid absorption and a hydrogel second layer to modulate ion concentrations.
A dual slip cut unit precisely cuts and rotates trapezoidal ear webs for efficient chassis attachment.
Inner belt surface treatment with cationic surfactant reduces skin irritation while maintaining elastic anchoring force.
Post-crosslinked superabsorbent polymers distribute absorbed liquids throughout the gel layer, resolving leakage risks in cellulose-free hygiene products.