Weft Knitting TRIZ Cases

Inserting elastic weft yarn between knitted stitches forms an intermediate layer that eliminates friction areas and clinging zones on the skin.

Woven copper weft yarns weld to insulated warp conductors, creating flexible power-carrying textile structures.

Flat-knitting machine creates seamless three-dimensional fabric with a closed bottom face using hook stitches and continuous stitch rows.

A movable sinker with an elongated hole allows a plate-shaped yarn drop preventing portion to cover the gap between the sinker and groove.

An adaptive regulator detects thread compliance via a sensor and adjusts P and D control parameters to maintain precise tension across varying thread types.

Segmented entry and intermediate mechanisms with a pressing cam switch engagement points, enabling diverse knitting operations without increasing carriage size.

Uniform composite yarns reduce surface markings on bent glass by balancing mechanical strength and thermal resistance during high-pressure forming.

A flexible glove liner uses a composite yarn with a fiberglass core and aramid wrapping to provide cut resistance.

Segmented yarn expands via thermal triggers to resolve the contradiction between conventional machine processability and final material thickness.

A needle selection device uses two laterally spaced electromagnets to actuate high-gauge knitting elements with precise magnetic control.

A knitted fabric design system overlays stitch connection lines on a grid display to visualize yarn movement paths during pattern creation.

Coated tearing zones reduce tensile elongation by 40% and lower removal force to 60 N, preventing hand injury from rotating tools.

Varying stretch zones in the knitted heel counter eliminate rigid counters, reducing weight and manufacturing complexity while maintaining stability.

Real-time pulse detection of yarn tension identifies broken needles without cumulative evaluation, eliminating additional sensors and reducing monitoring time.

Optical sensor system counts yarn loops passing through a rotary drum detection area, replacing relative mechanical sensors with absolute measurement.

Twisting organic and synthetic yarns creates controlled air spaces that resolve density trade-offs to improve moisture management and tensile strength.

Uncoated synthetic monofilament yarns create a knitted structure that drains moisture while maintaining skin comfort.

A tension meter detects yarn force during the resting phase to adjust the sending length for consistent fabric quality.

A circular knitting machine cam uses a 3.1 to 3.3 mm needle running groove width to guide needles with reduced stroke.

A recyclable cooling fabric uses phase change material coating to regulate surface temperature.

Varying knit courses and stitch tension creates a curved lacing edge that prevents puckering and strain in athletic footwear uppers.