Adhesive Tape With Pull Cord For Damage-Free Package Opening

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Solution Overview

Problem

Opening packages by hand can be frustrating and may damage the packaging or contents when using cutting tools like knives or scissors.

Innovation Solution

An adhesive tape with a series of perforations forming a tear line and a cord attached to the tape, which can be pulled to easily tear the tape without the need for cutting tools, combined with a tape dispenser that facilitates the use of this adhesive tape.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If cutting tools like knives or scissors are used to open packages, then the package can be opened, but the packaging or contents may be damaged

Engineering Contradiction:

Improvepackage openingVSAvoiddamage to packaging or contents

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The adhesive tape is segmented into discrete sections by perforations that form a tear line, allowing the tape to be easily torn into manageable segments. This segmentation enables the tape to be applied and removed in sections, facilitating package opening without requiring cutting tools that could damage the packaging or contents.

Inventive Principle:

Principle #1Segmentation

2Ease of manufacture

If adhesive tape without a cord is used, then the tape can be applied to packages, but the tape is difficult to remove by hand

Engineering Contradiction:

Improvetape applicationVSAvoidtape removal

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The invention merges the adhesive tape with a pull cord to create a composite fastening system. The cord is attached to the tape substrate and extends beyond the adhesive area, combining the sealing function of the tape with the removal function of the cord. This allows the tape to be easily removed by pulling the cord rather than by hand, solving the difficulty of tape removal while maintaining ease of application.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If a cord is attached to the adhesive tape, then easy removal is achieved, but the device complexity increases

Engineering Contradiction:

Improvetape removalVSAvoidtape structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The pull cord is attached directly to the tape substrate using the same adhesive, allowing the cord to serve dual purposes: it facilitates easy removal of the tape while also acting as part of the adhesive system. The adhesive serves both to bond the tape to the package and to attach the cord to the tape, eliminating the need for separate attachment mechanisms and reducing overall device complexity.

Inventive Principle:

Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The adhesive tape allows for easy opening of packages without damaging the contents or packaging, providing a convenient and damage-free solution for package opening.

Implementation Method 1

an adhesive substantially covering a first surface of the elongated substrate, and a cord attached to the elongated substrate by the adhesive

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentUS12331231B1Easy tear adhesive tape

Publication Date: 2025.06.17 TWEDT DONALD

AI summary

An adhesive tape includes an elongated substrate with a series of perforations forming a tear line extending along a length of the elongated substrate, an adhesive substantially covering a first surface of the elongated substrate, and a cord attached to the elongated substrate by the adhesive, the cord extending along the length of the elongated substrate adjacent to the series of perforations.