Scored Candy Bar Wrapper for Simultaneous Breaking
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Solution Overview
Problem
Conventional candy bar wrappers do not break when the candy bar is broken, requiring consumers to cut or pull the wrapper to access or share the candy bar.
Innovation Solution
The development of candy bar wrappers with a primary score line that allows the wrapper to break simultaneously with the candy bar, facilitated by secondary score lines and an unscored section for strength during flow wrapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the wrapper is made strong enough to withstand tension during flow wrapping, then the wrapper maintains integrity during manufacturing, but the wrapper cannot break when the candy bar is broken
Solution Approach 1:
The wrapper is segmented by introducing score lines that create predetermined weak points in the film structure. These score lines divide the continuous film into sections with reduced strength at specific locations, allowing controlled breaking at these points while maintaining overall structural integrity during manufacturing.
Solution Approach 2:
Different regions of the wrapper have different mechanical properties. The score lines create localized areas of reduced strength (weak points) while the rest of the wrapper maintains high strength to withstand tension during flow wrapping. This local variation in quality enables the wrapper to be both strong during manufacturing and breakable during use.
2Ease of operation
If the wrapper is designed to break easily when the candy bar is broken, then sharing becomes simple, but the wrapper cannot maintain strength during automated wrapping production
Solution Approach 1:
The score lines are formed on the wrapper film during the manufacturing process, creating predetermined break points before the wrapper is put to use. This preliminary action of scoring the film allows the wrapper to be manufactured with built-in breaking characteristics, eliminating the need for post-manufacturing modification and ensuring consistent breaking behavior during consumer use.
3Ease of operation
If score lines are added to enable breaking, then the wrapper can split with the candy bar, but the wrapper may tear during flow wrapping formation
Solution Approach 1:
The score lines are designed to be partial cuts rather than complete separations. They extend through only a portion of the film thickness and are spaced to create weak points without completely dividing the film. This partial action is sufficient to initiate breaking at the score lines during use while maintaining enough film continuity to prevent tearing during the high-tension flow wrapping process.
Data Source
AI summary
A process of forming a candy bar wrapper includes forming a primary score line in a film material and cutting the film material to form the candy bar wrapper. The primary score line extends in a predetermined direction. The film material comprising at least one film layer, a film thickness, a first film surface, and a second film surface opposite the first film surface. The candy bar wrapper has a film length, a film width from a first end of the candy bar wrapper to a second end of the candy bar wrapper. The primary score line is located to permit the simultaneous breaking of a candy bar and splitting of the candy bar wrapper to separate the candy bar wrapper into two pieces in a wrapped candy bar product. A candy bar wrapper and a wrapped candy bar product are also disclosed.