Textile Bonding via Patterned Roller Adhesive Transfer
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Solution Overview
Problem
Conventional methods for bonding fabric or sheet-type industrial materials, such as shoe soles, result in excessive scrap generation and waste due to the use of adhesive films and release papers, which are not eco-friendly and increase production costs.
Innovation Solution
A method where an adhesive resin is melted and applied to a partial coating roller with engraved patterns, then transferred to a textile, allowing for targeted bonding with heat and pressure, eliminating the need for adhesive films and release papers, and using resins like urethane, EVA, or polyester.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive films are used for bonding textiles, then bonding strength is improved, but scrap generation increases
Solution Approach 1:
The patent extracts and eliminates the adhesive film from the bonding process. Instead of using a complete adhesive film that requires cutting and creates scraps, the invention applies adhesive resin directly to the coating roller in a controlled manner, transferring only the necessary amount to the textile surface, thereby eliminating scrap generation while maintaining bonding strength
Solution Approach 2:
The patent applies local quality by engraving specific patterns on the coating roller surface and applying adhesive resin only to these patterned areas. This ensures adhesive is placed precisely where needed for bonding, rather than applying it uniformly across the entire film surface, thus eliminating unnecessary adhesive material and scraps
2Reliability
If adhesive films and release papers are used, then bonding process reliability is improved, but production cost increases
Solution Approach 1:
The patent removes both adhesive films and release papers from the process. The adhesive resin is applied directly to the coating roller with engraved patterns, eliminating the need for separate adhesive films and release papers, thereby reducing material costs and simplifying the manufacturing process while maintaining bonding reliability
Solution Approach 2:
The coating roller with engraved patterns serves multiple functions simultaneously: it acts as the adhesive application device, the pattern formation tool, and the transfer mechanism. This multi-functionality eliminates the need for separate adhesive films and release papers, reducing production complexity and cost
3Ease of manufacture
If adhesive films are cut and applied, then bonding capability is improved, but material waste increases
Solution Approach 1:
The patent extracts the adhesive application step from the adhesive film cutting and handling process. By applying melted adhesive resin directly to the coating roller in a controlled manner, the system eliminates the need to cut and handle adhesive films, thereby preventing material waste while maintaining bonding capability
Solution Approach 2:
The patent changes the physical state of the adhesive from solid film to melted resin. The adhesive resin is melted and applied in a controlled manner to the coating roller, allowing precise application only where needed by the engraved patterns, thereby eliminating material waste associated with cutting and handling solid adhesive films
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
This method minimizes scrap generation, produces lightweight products, and achieves cost savings by applying adhesive only to desired areas, reducing waste and environmental impact.
Implementation Method 1
melting an adhesive resin to apply the melted adhesive resin to a partial coating roller
Implementation Method 2
bonding the textile to which the melted adhesive resin is transferred to another textile by means of heat and pressure
Implementation Method 3
bonding the textile to which the melted adhesive resin is transferred to another textile by means of heat and pressure
Data Source
AI summary
The present invention relates to a method for bonding shoe textiles or industrial textiles to each other, the method including the steps of: melting an adhesive resin to apply the adhesive resin to the surface of a partial coating roller having a desired pattern engraved thereon, the adhesive resin being any one selected from the group consisting of urethane resin, an EVA resin, a nylon resin, and a polyester resin; transferring the melted adhesive resin applied to the partial coating roller to the textile; and bonding the textile to which the melted adhesive resin is transferred to another textile.