Printed Carpet Warp Thread Contrast for Visible Weave
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Solution Overview
Problem
Existing methods for producing printed carpets result in visually unattractive products where the weaving structure is obscured by printing, and the resulting carpets are either too light or lack the desired strength and authenticity of a woven design.
Innovation Solution
A method involving a substrate with top and bottom fabrics connected by weaving threads, where the warp threads of the top fabric are darker than the weft threads, allowing the weaving pattern to remain visible after printing, and incorporating a support layer for added stability and weight, using techniques like transfer printing or digital printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a print is applied to a carpet using known printing techniques, then the design variety and production flexibility are improved, but the weaving structure becomes obscured and the visual appeal deteriorates
Solution Approach 1:
The patent applies local quality by making the warp threads darker than the weft threads in specific regions where the print is applied. This creates a local contrast that allows the printing pattern to stand out while the darker warp threads maintain the visible weaving structure, thus preserving visual appeal while enabling design variety
Solution Approach 2:
The patent introduces a new dimension to the weaving structure by varying the color intensity of different thread types (warp vs. weft). This dimensional change in color contrast creates a hierarchy where the darker warp threads define the weaving pattern while lighter weft threads allow print visibility, resolving the contradiction between print application and structure preservation
2Ease of manufacture
If plain-woven furniture fabrics are used with a print, then the production cost is reduced, but the weight and strength are insufficient for carpet use
Solution Approach 1:
The patent creates a composite carpet structure by combining multiple fabric layers (top fabric with print, bottom fabric for stability) connected by connecting threads. This composite construction maintains the cost-effectiveness of printed fabrics while achieving the required weight and strength through the additional structural layers
Solution Approach 2:
The patent segments the carpet into distinct functional layers: a top fabric layer for the printed design and a bottom fabric layer for structural stability. This segmentation allows each layer to be optimized independently - the top layer for aesthetic versatility and the bottom layer for weight and strength requirements
3Illumination intensity
If the weaving structure is made more prominent to maintain visibility after printing, then the visual authenticity is improved, but the production complexity increases
Solution Approach 1:
The patent changes the color parameter of the warp threads (making them darker) as a simple, consistent modification throughout the fabric construction. This parameter change enhances weaving pattern visibility after printing without requiring complex production processes, thus improving visual authenticity while maintaining production simplicity
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 method produces carpets that appear woven while allowing for design variety and economic production, maintaining the appearance of a woven pattern while being strong and stable enough for use as a carpet.
Implementation Method 1
These sheets are then placed on a polyester fabric and are baked (at approximately 220°C) together, under pressure (approximately 4 bar) for a certain amount of time (30 to 60 s). Due to the heat, the ink detaches from the paper and transfers onto the top side (visible side) of the carpet.
Data Source
AI summary
The present invention relates to a method for producing a printed carpet, the method comprising the following steps: producing a substrate comprising a top and bottom fabric which are connected to each other by means of connecting threads, in which each fabric comprises weft threads and warp threads which are connected to each other according to a predetermined weaving pattern; applying a print to the top fabric. According to the invention, the warp threads of the top fabric are darker than the weft threads of the top fabric, so that the weaving pattern of the top fabric remains visible after the print has been applied.