Closure Tape Message Orientation for Readable Sealing
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Solution Overview
Problem
Existing plastic bags with closure tapes fail to ensure readable messages on both sides when folded, as messages on one side become partially visible and reversed, making them difficult to read from different positions.
Innovation Solution
The closure tape is designed with first messages printed in a standard reading direction on one half and identical second messages in a reversed reading direction on the other half, allowing correct reading from opposite sides when folded, and the bag's walls can be transparent or translucent for visibility before closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If messages are printed on one side of the closure tape, then the message is visible from one side, but the message becomes partially visible and reversed from the opposite side, making it difficult to read
Solution Approach 1:
The closure tape is divided into two halves separated by a folding line, with each half containing different message content oriented for its specific side. This segmentation allows each side to have optimally oriented messages while maintaining a single unified tape structure.
Solution Approach 2:
The message on one side of the folding line is printed in a reversed orientation relative to the other side. This inversion ensures that when the tape is folded, both sides display messages in the correct reading direction for viewers on respective sides, eliminating the mirror image problem.
2Strength
If the closure tape is folded to increase thickness and strength, then the closure tape becomes stronger, but the messages become difficult to read from opposite sides
Solution Approach 1:
The closure tape is segmented into two distinct halves with different message orientations, allowing the folding operation to produce strength while each segment maintains its own optimally oriented message for readability from its respective side.
Solution Approach 2:
Different portions of the closure tape have different message orientations tailored to their specific viewing angles. The local quality of message orientation is optimized for each side's viewing perspective while the overall structure provides uniform strength through the folding.
3Ease of manufacture
If the closure tape is made from a single unfolded foil, then the manufacturing is simple, but the messages on one side are visible from the opposite side, jeopardizing readability
Solution Approach 1:
The single unfolded foil is segmented into two distinct halves with different message orientations. This segmentation can be achieved through printing techniques on a single sheet before folding, maintaining manufacturing simplicity while ensuring message privacy and readability on both sides.
Data Source
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AI summary
A bag (10) of flexible plastic film, with a mouthpiece (11) and an annular fold (12) containing at least one flexible plastic closure tape (20) folded in half along a folding line (21) parallel to its longer edge, said closing tape (20) being provided, on one of its faces, with first messages (31) arranged in a reading direction (D1) and located in its entirety in one of the two halves of the closing tape (20) delimited by the folding line (21), and of identical second messages (32) arranged in an inverted reading direction (D2) with respect to the reading direction (D1) and located entirely in the other of the two halves of the closure tape (20).