Reusable Adhesive Fabric Paper for High-Resolution Repositionable Printing
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Solution Overview
Problem
Conventional printing fabrics for advertising, such as banners, suffer from low clarity and detail, rapid decoloration, expensive and time-consuming thermal cutting, and inconvenience in adhering and removing them, especially on surfaces like painted walls or existing advertising media.
Innovation Solution
A reusable adhesive fabric paper is developed by rapidly shrinking polyester DTY fabric, applying specific coating liquids containing ethylene vinyl acetate copolymer, polyurethane resin, and low molecular alcohol, and laminating with a removable adhesive backer, allowing for high-resolution printing, easy repositioning, and sun shading, while preventing decoloration and damage to surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional printing fabrics are used for advertising banners, then the fabric can be printed with images, but the clarity and detail of the printed images are low
Solution Approach 1:
The patent changes the physical and chemical parameters of the fabric by applying multiple coating layers with specific compositions (ethylene vinyl acetate copolymer, polyurethane resin, silicon dioxide, pigments) and controlling the shrinkage rate (10-15%) through heat treatment. These parameter changes create a fabric surface with optimized porosity, smoothness, and ink absorption characteristics that enable high-resolution printing with superior image clarity and detail while maintaining consistent printing quality.
2Duration of action of stationary object
If conventional printing fabrics are used, then the fabric can be printed, but the printed images decolorate rapidly
Solution Approach 1:
The patent creates a composite fabric structure with multiple functional coating layers: a base fabric layer, followed by layers containing ethylene vinyl acetate copolymer, polyurethane resin, silicon dioxide, white pigment, and gray pigment. This composite structure combines materials with different properties - the polymers provide binding and flexibility, silicon dioxide provides durability and UV resistance, and the pigments provide color stability. The layered composite structure prevents rapid decoloration by protecting the printed images from environmental factors while maintaining color fastness.
3Productivity
If thermal cutting is used to cut the fabric to necessary size, then the fabric can be cut, but the process is expensive and takes much time
Solution Approach 1:
The patent modifies the fabric properties through controlled shrinkage (10-15%) and multiple coating applications that create a fabric with optimized mechanical properties. The coating layers, particularly the polyurethane resin and silicon dioxide combinations, provide enhanced strength and reduced fraying at cut edges. This allows the fabric to be cut using simple, inexpensive mechanical methods rather than requiring expensive thermal cutting equipment, while maintaining clean edges and preventing yarn loosening. The parameter changes in fabric composition enable faster, more cost-effective manufacturing.
4Ease of operation
If conventional advertising fabrics are adhered to surfaces, then the fabric can be installed, but it is inconvenient to adhere and remove, and may damage the surface
Solution Approach 1:
The patent incorporates gray pigment coating on the rear face of the fabric and uses specific adhesive formulations that create a reversible bonding mechanism. The adhesive properties are tuned to provide strong initial adhesion for easy installation, while allowing clean removal without leaving residues or damaging the underlying surface. The parameter changes in adhesive composition and fabric backing structure enable the fabric to be adhered and removed multiple times conveniently, preventing surface damage while maintaining ease of operation.
5Illumination intensity
If fabric is used for window decoration, then the fabric can be adhered to windows, but it does not provide effective sun shading
Solution Approach 1:
The patent applies gray pigment coating specifically on the rear face of the fabric, creating a localized functional layer that provides sun shading while maintaining the front face's printing and aesthetic properties. This local quality approach - differentiating the function of the front face (printing display) from the rear face (sun shading) - enables the fabric to provide effective UV protection and heat rejection when adhered to windows, without requiring complex manufacturing processes. The gray coating layer selectively blocks sunlight while allowing the fabric to maintain its advertising and decorative functions.
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 adhesive fabric paper provides superior image quality, easy repositioning and removal, sun shading, and cost-effective cutting, reducing customer burdens and operational expenses, while maintaining image clarity and preventing surface damage.
Implementation Method 1
heating and cooling rapidly a woven fabric so that its width is shrunk by 10% to 15%
Implementation Method 2
preparing a first 'S' coating liquid containing ethylene vinyl acetate copolymer of 40 ̃50% by weight, a second 'S' coating liquid containing polyurethane resin of 25% by weight, and an 'R' coating liquid containing low molecular alcohol of 60 ̃75% by weight and silicon dioxide (silica) of 8 ̃12% by weight as coating liquids to be coated on the front face of the fabric
Implementation Method 3
laminating a backer coated with an adhesive to the coated fabric
Data Source
AI summary
An adhesive fabric paper for printing is used to color printers for personal computers, printing machines for indoor and outdoor advertising, wide format printers, plotters to print colored images. The manufacturing method includes: heating and cooling a woven fabric; preparing a first “S” coating liquid, a second “S” coating liquid and an “R” coating liquid as coating liquids to be coated on the front face of the fabric and maturing them for three days; coating twice the rear face of the fabric; coating once the rear face of the fabric; carrying out first and second “S” coating works on the front face of the fabric with the first “S” coating liquid and the second “S” coating liquid; coating twice the front face of the fabric with the “R” coating liquid; and laminating a backer coated with an adhesive to the fabric.