Bath Book Watertight Seal for Mold Prevention

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Solution Overview

Problem

Children's books with embedded puppets in aqueous environments face the risk of water ingress, leading to mold and bacterial growth due to the inability to maintain a watertight seal, posing health risks.

Innovation Solution

A waterproof book and puppet combination is designed with a watertight seal using a polyvinyl chloride (PVC) sheet, polyurethane (PU) foam, and polyethylene (PE) layers, along with a puppet assembly featuring a terry cloth outer material, jersey backing, and a non-woven fabric ring, ensuring the puppet is securely attached and sealed within the book's central aperture.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a puppet is embedded in a children's book for interactive storytelling, then the educational and entertainment value is improved, but water can penetrate between pages causing mold and bacterial growth

Engineering Contradiction:

Improveinteractive storytelling capabilityVSAvoidmold and bacterial growth

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The book is divided into distinct waterproof sections: the puppet is attached to the back cover which is sealed with waterproof material, creating a separate waterproof compartment that isolates the puppet from water while allowing interactive storytelling through apertures in the pages

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Waterproof materials such as polyvinyl chloride sheets and polyurethane coatings are applied to the back cover and pages to create flexible waterproof barriers that prevent water penetration while maintaining the book's flexibility and usability

Inventive Principle:

Principle #30Flexible shells and thin films

2Object-affected harmful factors

If the book is made waterproof to prevent water damage, then hygiene and safety are improved, but the construction complexity increases due to multiple waterproof layers

Engineering Contradiction:

Improvewater penetration preventionVSAvoidwaterproof construction complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Multiple waterproof materials including polyvinyl chloride sheets, polyurethane foam, and polyethylene layers are combined to create a composite waterproof structure that provides superior water protection while distributing the complexity across different functional layers

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The waterproof structure is nested within the book construction, with waterproof layers integrated into the back cover and page assembly, creating a compact multi-layered protective structure that prevents water penetration without excessive external complexity

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS10549211B2Bath book

Publication Date: 2020.02.04 MUNCHKIN INC

AI summary

A bath book and a puppet combination and method of manufacturing a bath book and a puppet combination, wherein a first intermediate assembly is bonded to a second intermediate assembly to create a third intermediate assembly. A second jersey backing layer is secured to the third intermediate assembly to create a fourth intermediate assembly. The fourth intermediate assembly may be flipped inside-out through a hole opening in the second jersey backing layer. The hole may then be sealed. The second jersey backing layer may be pushed upwards into the further intermediate assembly. An adhesive film may be applied to the terry cloth ring and the non-woven material ring of the second intermediate assembly to create a puppet assembly. The puppet assembly is positioned into a center aperture in a book assembly and bonded therein.