Waterproof Printed Product Using Polyurethane Adhesive
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Solution Overview
Problem
Existing printed products are prone to damage from extreme temperatures and abnormal environmental conditions, making them unsuitable for all-weather use and hygiene management operations.
Innovation Solution
A manufacturing method and device that produce a printed product with a waterproof fibrous tissue and micro-pores, using a polyurethane adhesive with irreversible chemical bonds, and a durable tying system, enabling resistance to extreme temperatures and abnormal environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional paper materials are used for printed products, then manufacturing cost is low and ease of manufacture is high, but the product durability and resistance to extreme temperatures and abnormal environments deteriorates
Solution Approach 1:
The patent employs composite materials consisting of waterproof fiber filaments (such as polyester, polypropylene, or nylon) combined with specific adhesives to create a printed product that resists extreme temperatures and abnormal environments. This composite structure provides both durability and environmental resistance while maintaining manufacturing feasibility through standardized production processes.
Solution Approach 2:
The patent changes the physical and chemical parameters of the material by using waterproof fiber filaments with specific properties (hydrophobicity, tensile strength, thermal stability) and controlling the adhesive bonding parameters. This allows the material to maintain structural integrity under extreme temperature variations and abnormal environmental conditions.
2Reliability
If waterproof synthetic materials are used, then resistance to moisture and extreme temperatures is improved, but the ability to be printed on and hydrophilicity deteriorates
Solution Approach 1:
The patent utilizes porous structures in the waterproof fiber tissue that allow printing ink to penetrate and bond effectively. The controlled porosity enables the hydrophobic material to accept hydrophilic ink through capillary action, solving the contradiction between waterproof performance and printability.
Solution Approach 2:
The patent applies different surface treatments or adhesive coatings to specific regions of the waterproof material to enhance printability in printed areas while maintaining waterproof properties in non-printed areas. This local modification allows the material to satisfy both waterproofing and printing requirements.
3Strength
If strong adhesives with irreversible bonds are used, then bonding strength and durability are improved, but the flexibility and ease of repair deteriorates
Solution Approach 1:
The patent employs a binding structure where the adhesive-bonded components are designed as a unified, durable assembly that functions as a complete unit. While the adhesive itself is strong and irreversible, the overall design accepts that repair would involve replacing the entire assembled unit rather than individual components, balancing strength with practical repair considerations.
4Reliability
If the printed product is designed for extreme environment resistance, then durability and reliability are improved, but the device complexity and manufacturing process complexity increase
Solution Approach 1:
The patent incorporates waterproofing and environmental resistance properties into the base material selection and initial structure design, rather than adding complex protective layers or systems later. The waterproof fiber filaments and adhesive bonding are integrated into the fundamental construction, simplifying the manufacturing device requirements while achieving high 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 printed product achieves enhanced durability and resistance to extreme temperatures and abnormal environments, making it suitable for all-weather use and multiple applications, including outdoor sports, industrial operations, and hygiene management.
Implementation Method 1
a polyurethane adhesive, which is characterized in that during the chemically curing process of the adhesive, isocyanate and water vapor undergo chemical changes, unidirectionally transform into strong physical bonds
Implementation Method 2
chains of the bonds are characterized in that they are not to be damaged or broken when subjected to extreme temperatures... without their chemical changes being reversed
Implementation Method 3
the ink is drawn through the micro-pores on the sheet material into a waterproof fiber tissue or gaps between waterproof fiber filaments by the physical phenomenon of capillary action
Implementation Method 4
liquid-permeable micro-pores which need to be formed on the surface of the material
Implementation Method 5
the ink is drawn through the micro-pores on the sheet material into a waterproof fiber tissue
Data Source
AI summary
Provided are a manufacturing and quality testing method and a manufacturing device for a printed product capable of resisting abnormal environmental changes and operating in all weather and suitable for hygiene management operations, as well as the printed product, which relate to the technical field of printing. The manufacturing and quality testing method for the printed product includes the following steps: selecting a material for producing a content component of the product, the material having a structure that exhibits bi-characteristics; preparing a polyurethane adhesive; forming waterproof and weather-resistant images on a sheet material of the content component of the product by an appropriate printing method; performing connecting between the content component of the weather-resistant product and a cover; and sampling and testing are performed to assure quality during the process of manufacturing the product capable of operating in all weather and capable of being disinfected and washed. The printed product can resist extreme temperatures and operate in all weather under abnormal environments, and is cost-effective and durable.