Multilayer Label Construction for Wet Beverage Bottles

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Solution Overview

Problem

Uncoated labels for wine and spirits suffer from performance limitations in wet conditions, including changes in appearance, fragility, loss of opacity, and adhesive failure, which affect aesthetic and brand reputation.

Innovation Solution

Multilayer label constructions incorporating a facesheet, polyolefin layers, a metallized polyolefin layer, and a pressure-sensitive adhesive, with specific layer thickness ratios and materials to enhance wet and dry opacity, adhesive strength, and water resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If uncoated paper is used for labels to achieve desired aesthetic appearance, then aesthetic quality is improved, but water resistance and opacity are worsened

Engineering Contradiction:

Improveaesthetic appearanceVSAvoidwater resistance

Core Design Contradiction:

Illumination intensityVSReliability

Solution Approach 1:

The patent applies composite materials by combining uncoated paper with a polyolefin layer and a metallized polyolefin layer. The uncoated paper provides the desired aesthetic appearance, while the polyolefin and metallized layers provide water resistance and opacity. This composite structure resolves the contradiction by integrating materials with complementary properties.

Inventive Principle:

Principle #40Composite materials

2Illumination intensity

If uncoated paper is used for labels to achieve desired aesthetic appearance, then aesthetic quality is improved, but adhesive strength is worsened

Engineering Contradiction:

Improveaesthetic appearanceVSAvoidadhesive strength

Core Design Contradiction:

Illumination intensityVSStrength

Solution Approach 1:

The patent introduces an intermediary layer (polyolefin layer) between the uncoated paper and the adhesive. This intermediary layer serves as a mediator that protects the uncoated paper from direct contact with moisture while providing a suitable surface for adhesive bonding, thus maintaining both aesthetic appearance and adhesive strength.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Strength

If label is exposed to moisture for extended periods, then adhesive strength is improved initially, but label integrity is worsened due to saturation and fragility

Engineering Contradiction:

Improveadhesive strengthVSAvoidlabel integrity

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The patent applies beforehand cushioning by incorporating a polyolefin layer and a metallized polyolefin layer before the label is exposed to moisture. These layers act as a protective barrier that prevents moisture from saturating the paper, thereby maintaining label integrity and preventing fragility while allowing the adhesive to function properly.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS20240076527A1Label constructions for wet applications

Publication Date: 2024.03.07 AVERY DENNISON CORP

AI summary

Label constructions exhibiting improved ice bucket performance, wet and/or dry opacity, delta opacity, show through, adhesive strength, and/or channeling/label movement are described herein. In some embodiments, the construction has a delta opacity is less than or equal to 10%. The label constructions described herein can be used on a variety of different substrate materials including glass and plastic. In some embodiments, the label constructions are used on glass, such as glass bottled, e.g., wine, beer, and spirits bottles. In some embodiments, the label constructions described herein are used on beverage bottles that are likely to be immersed in water, particularly cold water, for an extend period of time.