Paper/Cardboard Wound Articles TRIZ Cases

See how helically wound outer and inner cardboard strips with continuous bonding regions simpli

See how a grooved winding shaft with a protective sleeve enables coreless roll paper production

See how selective adhesive application and controlled drying harden roll ends for shape stabili

See how a cover member over a grooved winding shaft prevents inner layer deformation during sha

See how an integrated cutting unit removes scrap sections during spiral tube forming, eliminati

See how fluted corrugated paperboard cores achieve higher strength-to-weight ratios than solid

See how cellulose wadding with water-soluble starch and polyvinyl alcohol creates a toilet pape

Plant-fiber toilet seat covers use wound sheets or ball-on-substrate structures to cut non-biodegradable waste while preserving hygiene.

High-pressure gas or supercritical fluid embeds flavorants inside filter fibers for slower release, steadier smoke aroma, and longer shelf life.

Aligned receiving slots and nested rolling parts help form paper or cardboard filters with consistent diameter and improved filtration.

An adhesive film on a cardboard tissue-log core lowers friction during extraction, preventing inner-ply damage while keeping log bulk compact.

An adhesive film on a cardboard log core enables clean extraction from tissue rolls while protecting inner paper spirals and avoiding bulky plastic cores.

Alternating high- and low-stiffness paperboard plies raise tube compression stiffness and help resist gravity-driven oval deformation.