Glassine Paper Wrapping With Heat-Sealable Coating for Note Pads
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Solution Overview
Problem
Existing packaging methods for self-adhesive note pads, such as thin biaxially oriented polypropylene films, are inconvenient for users, especially those with visual impairments, and pose environmental concerns due to complex recycling and slow degradation, while alternative materials like cardboard offer inadequate protection and visibility.
Innovation Solution
A wrapping material based on glassine paper with a grammage of 25 to 50 g/m², coated with a heat-sealable lacquer, allowing efficient use on conventional packaging machines and providing secure, transparent, and moisture-managing packaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thin biaxially oriented polypropylene films are used for wrapping self-adhesive note pads, then the packaging provides protection and transparency, but the packaging becomes difficult to open and creates environmental problems
Solution Approach 1:
The patent changes the material parameter from plastic film to glassine paper with specific grammage (25-50 g/m²), fundamentally altering the opening characteristics while maintaining protective functions. The glassine paper provides natural ease of opening without requiring tear threads or tabs, directly resolving the contradiction between protection and ease of opening.
2Reliability
If thin biaxially oriented polypropylene films are used for wrapping self-adhesive note pads, then the packaging provides protection and transparency, but the packaging creates recycling and environmental degradation problems
Solution Approach 1:
The patent changes the material composition parameter from synthetic plastic (polypropylene) to natural fiber-based glassine paper. This fundamental material substitution eliminates the environmental harm associated with plastic recycling and degradation while preserving the protective packaging function.
3Object-generated harmful factors
If cardboard is used as alternative packaging material, then the packaging is environmentally friendly, but the packaging provides inadequate protection and visibility
Solution Approach 1:
The patent applies local quality by using glassine paper with specific grammage characteristics (25-50 g/m²) that provides enhanced protection compared to standard cardboard, while maintaining transparency. The specific material property selection resolves the contradiction between environmental friendliness and protective effect.
4Ease of operation
If glassine paper with low grammage is used for wrapping, then the packaging provides transparency and ease of opening, but the packaging may lack sufficient strength
Solution Approach 1:
The patent optimizes the grammage parameter within a specific range (25-50 g/m²) to achieve the right balance between transparency, ease of opening, and sufficient strength. This parameter optimization resolves the contradiction by ensuring the material is neither too thin nor too thick.
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 glassine paper packaging offers easy opening, environmental sustainability, and effective protection, while maintaining product visibility and compatibility with high-speed packaging processes.
Implementation Method 1
coated with a heat-sealable lacquer
Data Source
AI summary
The invention relates to a wrapping material (1) for wrapping an article (10), which is based on glassine paper with a grammage in the range of 25 to 50 g/m2, wherein the wrapping material (1) is present in the form of a web. The web has i. a first side face (S1), ii. a second side face (S2) situated opposite the first side face (S1), iii. at least one web portion (B) having a first and a second outer region portion (2, 3) and inner region portions (4, 5, 6, 7, 8), wherein the inner region portions are arranged between the outer region portions (2, 3). A heat-sealable coating is applied to the glassine paper on at least one of the two side faces (S1, S2) in at least one first outer coating region (2a-2g) in the first outer region portion (2) of the web portion (B). A heat-sealable coating is applied to the glassine paper on at least one of the two side faces (S1, S2) in at least one second outer coating region (3a-3g) in the second outer region portion (3) of the web portion (B).