Spherical Toilet Blocks with Composite Layers for Shape Retention
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Solution Overview
Problem
Existing toilet cleaning blocks swell and lose shape due to uneven rinsing, leading to an aesthetically unpleasing appearance and reduced effectiveness, while high production temperatures result in perfume oil loss.
Innovation Solution
A toilet cleaning block composed of masses with different compositions, where one mass is completely or partially enclosed by the other, containing perfume, nonionic surfactants, alkyl benzene sulfonate, and olefin sulfonate, formed into a rotationally symmetrical shape at low temperatures, ensuring even rinsing and maintaining shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If toilet cleaning blocks are produced by conventional extrusion and cutting methods, then production is simple and成本低, but the blocks swell and lose shape due to uneven rinsing
Solution Approach 1:
The patent applies spherical geometry to the toilet cleaning block design. The spherical shape provides uniform surface curvature that ensures even water distribution during rinsing, preventing localized over-wetting and swelling. The rotationally symmetrical form maintains consistent rinsing characteristics throughout the product lifecycle, directly addressing the shape retention problem while remaining manufacturable through specialized extrusion and rounding processes.
Solution Approach 2:
The patent employs composite material construction with multiple layers having different compositions and densities. The outer layer contains hydrophobic components that resist water penetration, while inner layers provide cleaning functionality. This composite structure creates a barrier against uniform water absorption, preventing swelling and maintaining shape integrity during rinsing operations.
2Productivity
If high production temperatures are used, then the mixing and forming processes are more efficient, but perfume oil is lost
Solution Approach 1:
The patent implements parameter optimization by reducing the production temperature from conventional high temperatures to a controlled lower range. This parameter change slows down the chemical reactions and physical processes during mixing and forming, allowing sufficient time for homogeneous material distribution without requiring excessive thermal energy. The lowered temperature directly prevents perfume oil evaporation and degradation while maintaining adequate process efficiency through extended processing time.
3Reliability
If toilet blocks are rinsed multiple times, then cleaning effectiveness increases, but the blocks swell and become unaesthetic
Solution Approach 1:
The patent applies local quality differentiation through its multi-layer composite structure. Each layer is specifically designed with localized properties: the outer layer possesses hydrophobic characteristics and structural integrity for shape maintenance, while inner layers contain hydrophilic cleaning agents. This spatial differentiation of material properties allows the block to withstand repeated rinsing cycles—the outer layer protects against water penetration and swelling, while inner layers progressively release cleaning effectiveness, maintaining both aesthetic appearance and cleaning reliability.
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 prevents swelling and maintains the original shape of the toilet cleaning block during multiple rinsing processes, while producing spherical blocks that retain their aesthetic appeal and fragrance, and allows for low-temperature production to preserve perfume oil.
Implementation Method 1
containing at least one nonionic surfactant and at least one alkyl benzene sulfonate and at least one olefin sulfonate
Data Source
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AI summary
A toilet cleaning block containing perfume, at least one non-ionic surfactant, at least one alkylbenzenesulfonate and at least one olefinsulfonate can be formed into a rotationally symmetric body, in particular a sphere, in a rolling machine or a press and is used in a system consisting of at least one cleaning block and at least one dispensing device.