Polyolefin Release Sheet for Quiet Disposable Packaging
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Solution Overview
Problem
Conventional release sheet materials for disposable absorbent articles are noisy and prone to deformation during thermal curing, making them unsuitable for high-speed production and discreet use.
Innovation Solution
A flexible release sheet material composed of a polyolefin film with a thermal cured silicone based release composition, having a basis weight of 1 g/m² to 25 g/m² and at least 50% polyethylene content, which provides effective adhesion release without deformation and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional release sheet materials are used for packaging disposable absorbent articles, then the packaging provides adhesive protection, but the materials produce noise and deformation during thermal curing
Solution Approach 1:
The patent changes the material parameters by using a polyolefin film with specific properties (basis weight of 1-25 g/m², at least 50% polyethylene content) that can withstand thermal curing temperatures without deforming or producing noise, while still allowing the silicone-based release composition to cure effectively
Solution Approach 2:
The patent creates a composite structure by coating a polyolefin film with a thermal cured silicone based release composition, combining the heat resistance and dimensional stability of the polyolefin substrate with the adhesive release properties of the silicone coating
2Object-generated harmful factors
If thin release sheet materials are used to reduce noise, then discretion is improved, but heat resistance during thermal curing may be compromised
Solution Approach 1:
The patent optimizes the basis weight parameter to a specific range (1-25 g/m²) that is thin enough to reduce noise during use but thick enough to maintain dimensional stability and prevent deformation during thermal curing, combined with using at least 50% polyethylene content to ensure heat resistance
3Productivity
If high-speed production is implemented, then productivity increases, but material deformation during thermal curing becomes more problematic
Solution Approach 1:
The patent changes the material parameters by selecting a polyolefin film with specific basis weight (1-25 g/m²) and composition (at least 50% polyethylene) that maintains dimensional stability during rapid thermal curing in high-speed production, preventing deformation that would compromise manufacturing precision
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 results in a quieter and more discreet packaging experience with improved heat resistance and cost-effectiveness, allowing for high-speed production without compromising product quality.
Implementation Method 1
a flexible release sheet material being a polyolefin film comprising a layer of thermal cured silicone based release composition
Implementation Method 2
having a basis weight of 1 g/m2 to 25 g/m2 and at least 50% polyethylene content, which provides effective adhesion release without deformation
Data Source
Figure 1~2
AI summary
Release sheet materials for use is packaging material for individually packaged disposable absorbent articles, typically sanitary napkins and the like.