Packaging Sheet Low-Density Covering Scratch Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Cigarette packages with existing coating layers on outer boxes suffer from poor cushioning properties, leading to scratches and potential jams during high-speed transfer, requiring precise guide surfaces that are costly and challenging to maintain.
Innovation Solution
A packaging sheet with a paper substrate and a low-density covering affixed to one side, providing enhanced cushioning properties and a Japanese paper texture, reducing the likelihood of scratches and allowing for less stringent transfer line accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a coating layer with fibers is formed on the outer surface to provide high frictional resistance, then the user experiences a novel feel, but the cushioning properties of the outer surface become poor
Solution Approach 1:
The patent uses a composite structure combining a paper substrate with a low-density covering layer (such as non-woven fabric or foam) to achieve both the desired tactile feel and adequate cushioning properties. The covering layer with lower density provides shock absorption while maintaining surface friction characteristics.
Solution Approach 2:
The patent changes the density parameter of the covering layer to be lower than the paper substrate, which fundamentally alters the cushioning properties. This parameter change enables the outer surface to provide both novel tactile feedback and sufficient cushioning against mechanical damage during high-speed transfer.
2Reliability
If the assembling accuracy of the transfer line is made severely high to prevent scratching, then the outer boxes are protected from scars and scratches, but the manufacturing complexity and cost increase
Solution Approach 1:
The patent applies beforehand cushioning by incorporating a low-density covering layer on the outer surface of the packaging sheet before the high-speed transfer process. This covering layer acts as a protective cushion that absorbs mechanical shocks and prevents direct contact between the hard guide surfaces and the outer box, thereby reducing the requirement for severely high assembling accuracy in the transfer line.
3Measurement precision
If one-side coated paper is used for the outer blank to achieve excellent printability, then the print quality is improved, but the cushioning properties of the outer surface remain poor
Solution Approach 1:
The patent combines one-side coated paper (providing excellent printability) with a low-density covering layer (providing cushioning properties) in a composite structure. The coated paper substrate maintains its superior printing characteristics while the added covering layer compensates for the insufficient cushioning properties, achieving both requirements simultaneously.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The packaging sheet effectively reduces the risk of scratches and jams, maintaining product quality and appearance while allowing for lower assembly accuracy in transfer lines, and offers a novel, cushioned texture suitable for cigarette packages.
Implementation Method 1
a covering (18) affixed to at least part of one side of the paper substrate (10, 12) with an adhesive layer (16) therebetween
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A packaging sheet is provided which is suitable for packaging articles and capable of providing a texture of Japanese paper. The packaging sheet includes one-side coated paper (10) as a paper substrate, and a covering (18) affixed to a coat layer (14) of the one-side coated paper (10) with an adhesive layer (16) therebetween and having a density lower than that of the one-side coated paper (10). The packaging sheet is suited for use as an outer blank for forming an outer box for a cigarette package.