Multilayer Label for Separator Roll Production Info Retention

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Solution Overview

Problem

The friction between a label attached to the inner peripheral surface of a separator core and a rotary shaft can wear off production information, making it impossible to read and identify the production information of the separator.

Innovation Solution

A multilayer label with detachable film bases is attached to the outer layer surface of the separator roll, allowing easy identification of production information without risk of wear-off during winding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a label is attached to the inner peripheral surface of the separator core, then the label is positioned for easy access during winding, but friction with the rotary shaft causes wear off of printed information

Engineering Contradiction:

Improvelabel accessibilityVSAvoidproduction information readability

Core Design Contradiction:

Ease of operationVSLoss of information

Solution Approach 1:

The label attachment position is inverted from the conventional inner peripheral surface of the separator core to the outer peripheral surface. This inversion eliminates the friction problem with the rotary shaft while maintaining label accessibility for information reading during the winding process.

Inventive Principle:

Principle #13The other way round (Inversion)

2Device complexity

If a single-layer label is used, then the structure is simple, but the label may detach or wear during the winding process

Engineering Contradiction:

Improvelabel structureVSAvoidlabel retention

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The label is constructed as a composite structure with a base sheet layer and a protective overlay layer. The base sheet provides adhesion to the separator surface, while the protective overlay layer prevents detachment and wear during winding, ensuring reliable retention of production information.

Inventive Principle:

Principle #40Composite materials

3Loss of information

If the label is attached to the outer layer surface of the separator, then information retention is improved, but the label may interfere with the winding process

Engineering Contradiction:

Improveproduction information retentionVSAvoidwinding process efficiency

Core Design Contradiction:

Loss of informationVSProductivity

Solution Approach 1:

The label is positioned at a specific location on the outer peripheral surface of the separator where it does not interfere with the winding mechanism. The label's placement is optimized to maintain information visibility while allowing smooth winding operation without interference.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS10418665B2Separator roll, method for producing separator roll, and label checking method

Publication Date: 2019.09.17 SUMITOMO CHEM CO LTD

AI summary

A separator roll in accordance with an embodiment of the present invention includes a core, a heat-resistant separator wound around the core and in contact with an outer peripheral surface thereof, and a multilayer label attached to an outer layer surface of the heat-resistant separator, the multilayer label including a first film base and a second film base detachable from the first film base.