Machine Wet End TRIZ Cases

A dry sheet manufacturing method bonds defibrated fibers through pressurization and heating to create strong structures without resin binders.

Sealing arrangement and evacuating system capture chemical mist and dust from spraying area, preventing fire hazards and contamination.

A woven fabric band uses segmented longitudinal threads to separate abrasion resistance and tensile strength functions.

A paper machine clothing seam process removes weft yarns to create a window, folds the fabric for alignment, and bonds the edges.

Chemical fiber modification and heat treatment create a smooth, porous press fabric surface that reduces sheet marking while maintaining wear resistance.

Variable cross-sectional channels improve fiber web quality by resolving the trade-off between manufacturing simplicity and dewatering performance.

Annealing PET monofilaments below the glass transition temperature resolves brittle failure by balancing tensile strength with loop toughness.

A conveyor containment device uses an independent, vertically adjustable front seal face to create a non-contacting fluid barrier.

Transforming static deckle boards into active drainage elements with slots removes stock flow disturbances to prevent basis weight non-uniformities.

Air currents detach and guide wet-laid nonwoven webs, preventing breaks during high-speed threading.

Segmented primary and secondary elements arranged in a Voronoi pattern resolve the trade-off between structural strength and air permeability limitations.

Adaptable sensor medium embedded in paper machine fabric detects temperature and pressure.

Varying inclination angle of dewatering strips enables localized turbulence control, resolving adaptability limits in paper machine production.

Triple layer forming fabric uses non-uniform cross machine direction floats and reversed pick stitching yarns to create a dense papermaking surface.

Segmented dual combination binder weft yarns resolve the contradiction between surface continuity and structural stability in papermaking fabrics.

Boundary layer shower directs fluid onto deckle boards to create a turbulent flow, preventing waves and inconsistent edge formation on paper machines.

Secondary wefts interweave upper and lower fabric layers to create long crimps that reduce inner space volume, suppressing splash while maintaining rigidity.

Balanced diagonal twill lines resolve the contradiction between sheet building efficiency and ease of guidance on paper machines.

High aspect ratio MD-yarns expand surface contact area to boost drying rates and abrasion resistance while managing manufacturing complexity.

Opposite polarity charges attract charged fibers to a transport belt, preventing waste paper blockage and enhancing tensile strength.

A wet paper web transfer belt adjusts surface roughness via resin swelling to prevent paper robbing and web breaks during high-speed operation.

Raised land areas with through voids move water and air from the fabric surface, reducing sheet rewet while enhancing dewatering efficiency.

Three independent warp binding yarns distribute force across a two-layer fabric structure, eliminating depressed portions that cause wire marks on paper.

A hammer unit applies impact force to a blade unit, removing accumulated paper dust that degrades calender roller cleaning ability.

Distinct upper and lower weave structures in the industrial two-layer fabric maintain constant fiber orientation while reducing jet stream turbulence effects.

A valve design uses a cam-guided rod to create rotation-free fluid flow.

Lower transverse threads form variable floats to maintain consistent projection on the running side.

Alternating weft yarn diameters in a double warp structure create raised friction zones and smooth wear surfaces, eliminating silicon stripe treatments.

Separating additive injection from pulp stock via controlled feed water dosing resolves unpredictable admixture timing while reducing chemical consumption.

A fiber belt uses a polymer composite to bridge voids between fibers, creating a fluid-permeable structure that absorbs liquid efficiently.

A flow guide device with a cover and flexible skirt accelerates suspension stream into the trough channel inlet of a cylinder paper machine.

Clamping strip locks wire foil via undercut groove, eliminating play-induced vibrations and positioning errors.

Ejecting a water layer between pulp plies increases web bulk by up to 30% while maintaining internal bond strength without excessive refining.

Modular distribution channeling pieces with intermediate spaces enable diluting fluid input in paper machine headboxes.

A forming belt uses discrete patterns with varying air permeability to create three-dimensional raised elements in nonwoven substrates.

Reciprocating a striking bar against a mesh belt return section removes deposited fibers, preventing clogging and improving production efficiency.

An extension device attaches to air guide boxes to stabilize material webs during high-speed paper production.

A pulp transportation system uses a valve unit to control flow direction between supply and forming machines.

Spaced motif elements extend from base body without connecting webs, preventing visible artifacts in high-pressure paper production.