Screen Plate With N/M Twill Support Screen for Precise Printing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional screen plates with support screens made of nylon or polyester fibers have low Young's modulus, leading to weak resistance against displacement during printing, resulting in insufficient printing accuracy.
Innovation Solution
A screen plate design using a support screen formed from an n/m twill woven fabric, where n and m are integers of 2 or more, to increase the Young's modulus and enhance printing accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a support screen made of nylon or polyester fiber is used, then the support screen is low in Young's modulus and easy to deform, but resistance to displacement during printing is weak resulting in insufficient printing accuracy
Solution Approach 1:
The invention changes the key parameter of the support screen from conventional nylon/polyester fiber to an n/m twill woven fabric structure. This structural parameter change increases the Young's modulus while maintaining elasticity, thereby resolving the contradiction between ease of operation and manufacturing precision in screen printing applications
Solution Approach 2:
The invention uses a composite approach by combining the n/m twill woven fabric structure with the support screen function. The specific woven structure (where n and m are integers of 2 or more) creates a composite material property that simultaneously provides both the required elasticity for rapid release and sufficient rigidity for printing accuracy
2Manufacturing precision
If the support screen is made high in Young's modulus to resist displacement, then printing accuracy improves, but rapid release performance from the printing object surface deteriorates
Solution Approach 1:
The n/m twill woven fabric structure optimizes the Young's modulus parameter to a specific range that balances two opposing requirements: high enough to resist displacement during printing for accurate pattern formation, but not excessively high to maintain elasticity for rapid release from the printing surface after printing
Solution Approach 2:
The support screen with n/m twill woven fabric exhibits dynamic mechanical properties that adapt to different operational phases: during printing it provides sufficient rigidity to prevent displacement, while during release it utilizes elastic recovery to achieve rapid separation from the printing object surface
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 increased Young's modulus of the support screen minimizes deformation and displacement during printing, allowing for high-precision print pattern formation and rapid release from the printing object surface.
Implementation Method 1
the screens are temporarily brought into contact with the printing object surfaces by use of elastic deformation and are immediately released from the surfaces based on resilience
Implementation Method 2
the support screen is so low in Young's modulus that resistance to the displacement of an image formation portion due to a friction force along with slipping of a squeegee during printing is weak
Data Source
AI summary
A screen plate for screen printing is provided with a plate frame, a supporting body screen having an outer peripheral part fixed to the plate frame, and a printing screen having an outer peripheral part fixed to the supporting body screen. The supporting body screen is made of an n/m twilled weave textile, wherein n and m independently represent an integer of 2 or more. The screen plate has excellent printing accuracy.