Artificial Turf Tufts Using Composite Yarns to Eliminate Twisting

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional artificial turf surfaces often exhibit linear striping and are challenging to install uniformly, leading to increased manufacturing costs and aesthetic limitations, as they typically use twisted yarns that are expensive to produce.

Innovation Solution

The use of artificial turf with tufts comprising at least three distinct yarns, each varying in material, color, texture, and denier, which are tufted through a single needle to create a uniform and natural-looking surface, reducing the need for twisting and thereby lowering production costs, and allowing for easier installation by ensuring each tufted row is substantially similar to adjacent rows.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If conventional artificial turf uses twisted yarns to create uniform appearance, then aesthetic quality is improved, but manufacturing cost increases and production complexity increases

Engineering Contradiction:

Improveuniform appearanceVSAvoidmanufacturing cost

Core Design Contradiction:

ShapeVSEase of manufacture

Solution Approach 1:

The invention segments the yarn structure by using three distinct yarns (first yarn, second yarn, and third yarn) with different properties instead of a single twisted yarn. Each yarn is tufted through the backing layer independently, eliminating the need for twisting operations while maintaining visual uniformity through the combination of different yarn characteristics.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention uses a composite structure combining three different yarn types (varying in material, color, texture, and/or denier) to achieve the aesthetic quality previously obtained from twisted yarns. This composite approach allows each yarn to contribute different properties, creating a uniform appearance without requiring mechanical twisting.

Inventive Principle:

Principle #40Composite materials

2Shape

If conventional artificial turf uses twisted yarns to ensure uniform appearance, then aesthetic quality is improved, but device complexity and manufacturing process complexity increase

Engineering Contradiction:

Improveuniform appearanceVSAvoidmanufacturing process complexity

Core Design Contradiction:

ShapeVSDevice complexity

Solution Approach 1:

The manufacturing process is segmented into independent yarn feeding operations for three separate yarns, eliminating the complex twisting step. Each yarn is fed through its own tensioner and needle, simplifying the overall process flow while achieving uniform appearance through the combination of different yarn properties.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The tufting machine is designed to handle multiple yarn types simultaneously using universal components (tensioners, needles, creel assembly) that can process different yarn specifications. This multi-functionality allows the same equipment to manage three distinct yarns without requiring specialized twisting machinery.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Shape

If conventional artificial turf uses twisted yarns, then aesthetic quality is improved, but installation difficulty increases due to linear striping and matching requirements

Engineering Contradiction:

Improveaesthetic qualityVSAvoidinstallation difficulty

Core Design Contradiction:

ShapeVSEase of operation

Solution Approach 1:

The invention applies local quality variation by using three different yarns with distinct properties (material, color, texture, denier) within each tuft. This creates micro-variation that eliminates linear striping patterns, allowing installers to lay turf without needing to carefully match rows, significantly simplifying installation while maintaining aesthetic quality.

Inventive Principle:

Principle #3Local quality

4Ease of manufacture

If conventional artificial turf uses single yarn type, then manufacturing cost is reduced, but aesthetic quality and natural appearance deteriorate

Engineering Contradiction:

Improvemanufacturing costVSAvoidaesthetic quality

Core Design Contradiction:

Ease of manufactureVSShape

Solution Approach 1:

The invention uses a composite of three different yarn types, each with varying properties (material composition, color, texture, and/or denier), to achieve superior aesthetic quality and natural appearance. This composite structure mimics the variation found in natural grass while remaining cost-effective by eliminating expensive twisting operations.

Inventive Principle:

Principle #40Composite materials

Data Source

PatentUS20240426064A1Artificial Turf And Associated Devices And Methods For Making Same

Publication Date: 2024.12.26 COLUMBIA INSURANCE CO

AI summary

Implementations herein describe an artificial turf having a backing layer and a plurality of rows of individual tufts tufted into the backing layer. Each tuft comprises at least three yarns per tuft and each one of the at least three yarns varies in at least one of material, color, texture, denier and cross-section. Each row of individual tufts is substantially similar to each adjacent tufted row and adjacent tufts on a given row are spaced apart at a predetermined gauge.