Multi-Ply Tissue Bulk Reduction via Linear Embossing
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Solution Overview
Problem
The increasing size of premium paper products, such as tissue and towel rolls, poses a challenge due to their thicker plies, which require more space for storage and shipping, while consumers prefer to maintain current holder sizes and product quantity without compromising the paper's quality or attributes like strength, softness, and absorbency.
Innovation Solution
A method involving a substantially linear emboss pattern is used to decrease the bulk and increase the density of paper products, allowing for reduced roll sizes or increased roll content without compromising strength, absorbency, or consumer-preferred attributes like softness, by embossing and plying multi-ply paper products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If papermaking techniques improve to increase softness, bulk, and absorbency, then product quality attributes improve, but roll size increases requiring more storage and shipping space
Solution Approach 1:
The patent applies embossing with specific geometric patterns (raised and recessed areas) to change the physical parameters of the paper product. This creates a structured surface that reduces bulk while maintaining or improving perceived quality attributes like softness and absorbency, thereby resolving the contradiction between quality improvement and volume reduction
Solution Approach 2:
The embossing process adds a third dimension to the paper surface by creating raised and recessed areas. This dimensional change allows the paper to maintain surface area and quality attributes while reducing overall bulk and roll size, effectively solving the contradiction between quality and volume
2Ease of operation
If tissue plies become thicker to improve product attributes, then softness and absorbency improve, but storage and shipping space requirements increase
Solution Approach 1:
Embossing changes the physical parameters of the paper ply by creating a structured surface with raised and recessed areas. This structure improves perceived softness and maintains absorbency while reducing the overall thickness and volume of each ply, thereby reducing storage space requirements without compromising ease of operation
3Quantity of substance
If roll products are made larger to increase product quantity, then more paper product is provided, but consumer carriers and holders cannot accommodate the larger size
Solution Approach 1:
By embossing the paper product with structured patterns, the patent reduces the bulk and volume of the paper while maintaining the same surface area and quantity of usable paper. This allows larger quantities of paper to be packaged in compact rolls that fit standard consumer holders, resolving the contradiction between quantity and holder size
Data Source
AI summary
A method of increasing the density and reducing the bulk of multi-ply paper products allowing one to reduce the roll size or increase the roll content, while minimizing the destruction of favorable product attributes.