Die-Cut Napkin Band Sheet With Interlocking Slits for Easy Separation
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Solution Overview
Problem
Existing napkin bands require significant effort to separate from a stack and lack efficient interlocking mechanisms for securing around cylindrical objects, and they are not easily printable before separation.
Innovation Solution
A die cut sheet with specific patterns of lines and slits allows for the creation of separable interlocking napkin bands that can be printed and easily formed into cylindrical shapes by interlocking the slits, using a flexible card stock material and compatible with various printing technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If napkin bands are supplied pre-cut into individual size and stacked one on top of the other into a brick product, then the bands are ready for use, but the band must be peeled from the stack which requires more effort than desired
Solution Approach 1:
The sheet is divided into multiple individual napkin bands through die cut lines that create separation zones between adjacent bands. Each band is segmented with slits at its ends to form interlocking tabs, allowing easy separation along the die cut lines while maintaining structural integrity for interlocking
Solution Approach 2:
Die cut lines act as intermediary separation zones between stacked napkin bands. These pre-formed separation lines serve as the medium that enables easy peeling and separation of individual bands from the stack without requiring excessive force or manual effort
2Reliability
If napkin bands are made with adhesive at one or both ends for securing around napkin, then the bands can be attached to napkin, but they require manual or machine wrapping which reduces efficiency
Solution Approach 1:
The napkin band is designed to be self-forming into a cylindrical shape through its interlocking slit mechanism. The band automatically secures itself around the napkin without requiring external manual wrapping or machine intervention, as the interlocking tabs maintain the cylindrical formation and hold the napkin in place
3Loss of information
If napkin bands are printed with logos, names, or other content, then the bands provide branding and identification, but the printing must occur before separation which adds process complexity
Solution Approach 1:
Printing is performed on the entire sheet containing multiple napkin bands before the sheet is separated into individual bands. This preliminary printing action ensures that all bands receive the desired logos, names, or content in a single printing operation, and the printed information is retained on each individual band after separation along the die cut lines
Data Source
AI summary
A product is provided for forming separable interlocking napkin bands. The product includes a sheet having a plurality of die cut lines extending along a length and a width of the sheet, and a plurality of slits extending from certain of the die cut lines. The die cut lines define a plurality of separable napkin bands that can be separated from one another along the die cut lines, and individually secured into a cylindrical formation by interlocking the slits together. The sheet is adapted to be passed through a printer and desired information is printed on the napkin bands, after which the napkin bands can be separated from one another.