Two-Ply Moisturizing Tissue Composition for Low Stickiness
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Solution Overview
Problem
Existing moisturizing tissue papers face issues with stickiness, tearability, and insufficient strength due to their softness, smoothness, and moisture-retaining properties, which are not adequately addressed by current products.
Innovation Solution
A two-ply tissue paper with a chemical agent content of 2.0 to 5.5 g/m² on both surfaces, a basis weight of 10 to 25 g/m² per layer, and a sheet thickness of 100 to 140 μm, featuring a moisture content of 1 to 15 wt%, a static friction coefficient of 0.50 to 0.65, and specific tensile strengths, which reduces stickiness while maintaining softness and smoothness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If moisturizing agent is applied onto tissue base paper to improve softness and smoothness, then the sensation of stickiness increases
Solution Approach 1:
The patent applies a moisturizing agent at a controlled concentration range (0.5-5.0 mass%) to optimize the balance between smoothness and stickiness. By precisely controlling the chemical agent content and application parameters, the invention achieves reduced friction coefficient (improved smoothness) while minimizing excessive moisture retention that causes stickiness.
Solution Approach 2:
The invention uses a composite structure combining tissue base paper with applied moisturizing agent layer. This composite material approach allows the base paper to provide structural integrity while the applied chemical layer provides smoothness, with the composition optimized to prevent excessive stickiness.
2Ease of operation
If tissue paper is made soft and moisture-absorbing, then the paper strength decreases and tearability increases
Solution Approach 1:
The patent controls the moisturizing agent concentration within 0.5-5.0 mass% and adjusts the water content to 5-20% to maintain an optimal balance between softness and strength. This parameter optimization ensures the tissue remains soft and comfortable while preventing excessive weakening that would cause easy tearing.
Solution Approach 2:
The invention applies a moderate amount of moisturizing agent (not excessive saturation) to achieve sufficient softness and moisture absorption while maintaining adequate paper strength. The controlled application ensures enough chemical agent is present to improve comfort but not so much that structural integrity is compromised.
3Ease of operation
If chemical agent content is increased to improve smoothness, then the sensation of stickiness increases
Solution Approach 1:
The patent identifies and controls critical parameters including chemical agent content (0.5-5.0 mass%), water content (5-20%), and friction coefficient to achieve the optimal balance between smoothness and stickiness reduction.
Solution Approach 2:
The invention uses the friction coefficient as a feedback parameter to evaluate and optimize the moisturizing agent application. By measuring and controlling friction characteristics, the patent ensures the tissue achieves desired smoothness without excessive stickiness.
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 tissue paper achieves a high tensile strength, particularly in the wet CD direction, while providing a smooth and soft sensation comparable to or exceeding that of existing moisturizing tissues, with reduced stickiness and improved tearability.
Implementation Method 1
forms a smooth and thin film on the surface of the tissue
Implementation Method 2
absorbs moisture so as to moisturize the tissue
Data Source
AI summary
Provided is tissue paper which has softness, smoothness, and moistness either equaling or surpassing those of the existing moisturizing tissue paper and which is also less sticky and is not easily torn in use. The two-ply chemicals applied tissue paper has a configuration in which the amount of the chemicals applied on both side surfaces is 2.0 to 5.5 g/m2, the basis weight per each layer of sheets constituting the two-ply chemicals applied tissue paper is 10 to 25 mg/m2, and the thickness of the two-ply chemicals applied tissue paper is 100 to 140 μm.