Paper Wrap with Selective Adhesive for Coreless Product Sealing
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Solution Overview
Problem
Conventional paper wraps fail to securely wrap coreless paper products without twisting and tucking, and often tear easily when bundled, leading to inadequate protection during transport and storage, while also being difficult for consumers to open and causing product damage.
Innovation Solution
The development of paper wraps with selectively applied adhesives on the outside and inside surfaces, allowing the wrap to self-bond without a core, providing sufficient seal strength for protection and ease of removal, while minimizing blocking and damage during handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional paper wraps are used without adhesive, then the wrap can be easily removed by consumers, but the wrap cannot securely hold coreless products without twisting and tucking
Solution Approach 1:
The patent applies adhesive only to specific portions of the paper wrap (such as the ends or edges) rather than the entire surface. This localized adhesive application provides sufficient bonding to secure the wrap around the product while leaving other areas adhesive-free for easy consumer removal without aggressive tearing.
Solution Approach 2:
The patent uses partial adhesive coverage instead of full coverage, applying adhesive only where necessary to maintain the wrap during transport and storage. This partial action provides just enough security while avoiding excessive adhesion that would make removal difficult.
2Reliability
If adhesive is applied to secure the paper wrap around the product, then the wrap stays securely wrapped during transport, but the adhesive may stick one product to another when stacked (blocking)
Solution Approach 1:
The patent applies adhesive only to specific portions of the paper wrap that contact the product surface, while leaving other portions adhesive-free. This localized application secures the wrap to the product without creating blocking between stacked products, as the adhesive does not extend to the outer surfaces that would contact adjacent products.
Solution Approach 2:
The patent uses minimal adhesive coverage, applying adhesive only where necessary to maintain the wrap during handling. This partial adhesive application provides sufficient security against unwrapping while minimizing the risk of blocking between stacked products.
3Strength
If strong adhesive is used to secure the paper wrap, then the wrap provides sufficient seal strength for protection, but the wrap becomes difficult for consumers to open and may cause product damage
Solution Approach 1:
The patent applies adhesive with controlled strength to specific portions of the wrap, providing sufficient bond strength to maintain the wrap during transport and storage. The localized application ensures the seal remains intact during handling while allowing consumers to easily peel back the wrap from adhesive-free areas without excessive force that could damage the product.
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 solution ensures secure wrapping of coreless products without twisting, prevents tearing when bundled, allows easy consumer access, and reduces product damage and blocking during transport and storage.
Implementation Method 1
the printed paper wraps comprise at least one heat-sealable adhesive that may be applied in varying locations, coverage levels, and patterns comprising different seal strengths, which may be sealed using heat and/or pressure external to the products
Data Source
AI summary
The present disclosure provides paper wraps, paper wrapped products, such as rolled bath tissue, paper towel products, or bundles of rolled bath tissue or paper towels, and methods for covering a product or bundled products in a paper wrap. For example, printed paper wraps and their use are described, wherein the printed paper wraps comprise at least one heat-sealable adhesive that may be applied in varying locations, coverage levels, and patterns comprising different seal strengths, which may be sealed using heat and/or pressure external to the products for packaging and protective purposes.