Paper/Cardboard TRIZ Cases

Lowering pH converts dissociated acid moieties to reduce water retention, enabling efficient pressure filtration of fibril cellulose.

Foam forming creates porous thermoformable webs from cellulosic fibres and thermoplastics for compression moulding.

A semi-batch process produces aqueous colloidal silica with 16-18% solids and low viscosity.

Through-air drying of a multi-ply tissue web imparts cross-machine direction strain, balancing CD tensile strength and softness without creping.

Microfibrillated cellulose adsorbs precipitated calcium carbonate into a hybrid ply, improving whiteness and elastic modulus without reducing tensile strength.

Adding a cationic polymer to mechanical pulp before mixing improves first pass ash retention while maintaining sheet bulk and stiffness.

Composite nonwoven fabric uses low-shrinkage non-melting fibers and high LOI thermoplastic fibers to prevent fire spread without losing structural integrity.

Salt particle templating controls porosity in dried microfibrillated cellulose foams, eliminating costly freeze drying.

Extending corner pillar segments along end walls resolves compressive strength trade-offs while maintaining compact folded dimensions.

Polymerizing hemicellulose with styrene and alkyl acrylates via redox initiation yields a dispersion that improves water vapor transmission rates.

A sheet manufacturing apparatus uses separate frames to isolate the quantitative feeder from defibration vibrations.

Segmented sensors on a sensing roll generate signals to map nip pressure across an applicator rod, resolving complexity in real-time monitoring.

A cationic polyetheramine dispersant associates with fiber surfaces to reduce steric repulsion and prevent entanglement during stock preparation.

Low molecular weight N-vinylformamide polymer resolves the trade-off between filler retention and drainage speed in paper manufacturing.

Segmented orifice injection prevents nozzle clogging during nano-fibrillation while preserving cellulose polymerization degree.

Hofmann degradation cationic polymers enhance paper retention and drainage, eliminating complex preparation units and reducing machine clogging risks.

Reinforced bottom wall with hand openings provides integrated handle strength for heavy duty packaging containers.

Incorporating crimped cellulose ester staple fibers into wet-laid webs improves drainage rates and air permeability while maintaining wet tensile strength.

Foldable end walls with cutouts enable easy manual handling of fruit while maintaining structural integrity during shipping.

A shoe press belt with a polymer elastic part maintains lubricant distribution between the belt and shoe.

Volatile binders decompose during curing to eliminate resinous residues, maintaining high electrical conductivity and RF compatibility.

Segmented receptacle platforms isolate sauces from hot food to prevent contamination and heat transfer.

Wrapping a paperboard and cellophane laminate blank eliminates wall wrinkles during deep container forming, ensuring hermetic sealing integrity.

A one-piece carton blank integrates side walls and reinforcing panels to simplify assembly.

Mixed carbon fiber lengths enable stable aqueous suspension, resolving uneven distribution issues in wet process production.

Cellulose sheets reinforced with high-elongation polyurethane aggregates and cationic flocculant resist creasing while maintaining tensile strength.

Segmented flap designs resolve machine erection interference while maintaining stacking strength without increasing material consumption.

Adding microfibrillated cellulose and associative polymers to pulp slurry improves drainage, reducing steam consumption while maintaining retention.

An anionic lipohydrophilic glycerol-based polymer reduces pitch and stickies deposition by 5% to 95%, preventing equipment downtime.

Composite corrugated corners increase stacking strength while minimizing scrap production during container construction.

Segmented cells with varying sizes balance softness against structural integrity while maintaining bulk.

Cellulose ester staple fibers with specific denier and crimped shape improve wet laid paper drainage while maintaining wet tensile strength.

A stackable packaging unit uses a corner ridge with centring profiles to align retaining panels and hold products securely.

Large volume surface depressions in the towel web enhance absorbency and softness without increasing basis weight or energy consumption.

Foldable locking tabs engage insert flanges to eliminate adhesive tape and shrink wrap, reducing material costs while maintaining tamper resistance.

Hot melt adhesive bonds TPU film to release paper via thermal activation, replacing sewing to lower production cost and eliminate toxic materials.

Liquid crystal polymer powder with 15 to 77 Pa·s melt viscosity forms fibrous particles, producing films with MIT fold numbers of 100 or more.

Activated polymer composition improves retention and drainage while maintaining formation quality.

Applying water soluble silicate to cellulosic fibers enables in situ polymerization of silica pigments directly on the substrate surface.

Hesperaloe pulp fibers replace Northern softwood kraft in tissue products to boost cross-machine direction stretch and durability.

Removing hemicellulose from non-wood fibers boosts tissue durability while maintaining softness.

Agave fiber blends displace long fiber fractions in tissue, resolving the trade-off between supply stability and product softness.

Adhered corner members reinforce single-layer side walls in this foldable container, reducing material consumption while maintaining structural stability.

Cross-linked microfibrillated cellulose replaces guar gum to eliminate supply shortages and formation damage while maintaining thermal stability.

Hydroxyalkyl methylcellulose dissolves at room temperature through controlled molar substitution of hydroxyalkoxyl groups.

Differential density and thickness in the fibrous structure lower stiffness and increase absorbency while enabling easy reopening via a visible tab.

Cationic polyelectrolyte with molecular weight under 10,000 Da alters microfibrillated cellulose surface properties to promote water removal.

Hydroentangled pulp and lyocell fibers achieve high tensile strength without synthetic binders.

Ammonium chloride neutralizes hydrochloric acid from sodium chloride, preventing paper degradation while maintaining high chloride retention for print quality.