Tibetan Weave Carpet Structure for Color Variation and Aged Texture
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Solution Overview
Problem
Traditional Tibetan carpet weaving methods often result in uniformity and lack of variation in color and texture due to the use of single warp and weft threads, limiting the potential for intricate patterns and unique appearances.
Innovation Solution
A method involving hand-carded and hand-spun wool yarn, looped around multiple warp threads to create knots, with 100% cotton weft strands interwoven in an alternating pattern to reduce wool usage and enhance texture, combined with a chemical wash for aged appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional Tibetan carpet weaving methods are used with single warp thread and single weft thread per knot, then the weaving process is simple and straightforward, but the carpet appearance becomes uniform and lacks varied colors or textures
Solution Approach 1:
The patent divides the weft thread into multiple strands (two or more weft strands) that are woven together alongside each other, allowing different colors and textures to be incorporated into a single row of knots. This segmentation enables color and texture variation while maintaining a relatively simple weaving structure.
Solution Approach 2:
The patent applies different materials and properties to different parts of the carpet by using multiple weft strands with varying characteristics (e.g., different colors, textures, or material compositions) in specific locations, creating local quality variations that enhance the overall design without requiring complex weaving mechanisms.
2Adaptability or versatility
If multiple weft strands are woven next to each other to create varied colors and textures, then the carpet design becomes more intricate and unique, but the weaving process becomes more complex
Solution Approach 1:
By segmenting the weft into multiple strands that can be independently selected and woven, the patent enables intricate patterns and designs while maintaining a systematic weaving approach that remains manageable and repeatable.
Solution Approach 2:
The patent employs preliminary actions such as hand-carding and hand-spinning the wool yarn into single strands before weaving, allowing for preparation and organization of materials that simplifies the actual weaving process and enables better control over the final pattern.
3Ease of operation
If hand-carded and hand-spun wool yarn is used, then the carpet has a relaxed hand feel and reduced wool usage, but the yarn production process becomes more labor-intensive
Solution Approach 1:
The patent employs self-service techniques in the yarn production process, specifically hand-carding and hand-spinning, where the wool is processed through manual techniques that naturally create the desired relaxed hand feel. While labor-intensive, these methods directly produce the quality texture without requiring additional processing steps.
Solution Approach 2:
The patent changes the physical parameters of the wool yarn through hand-carding and hand-spinning processes, transforming the material properties to achieve the desired relaxed hand feel and reduced wool usage, thereby optimizing the balance between quality and material efficiency.
4Shape
If loops are cut to form pile and chemical wash is applied, then the carpet gains aged appearance and increased shine, but the finishing process becomes more complex
Solution Approach 1:
The patent extracts and removes the loop portions of the yarn after weaving, cutting them to form the desired pile structure. This extraction step, combined with chemical washing, creates the aged appearance and luster while maintaining a relatively straightforward finishing process.
Solution Approach 2:
The patent employs chemical washing that induces color changes and surface modifications, transforming the appearance of the carpet to achieve the desired aged look and increased shine. This chemical process efficiently achieves the visual effects without requiring complex mechanical finishing operations.
Data Source
AI summary
A method for weaving a carpet including tying a row of knots with a yarn and weaving two or more weft strands next to the row of knots, where the weft strands are 100% cotton and the yarn is wool yarn hand-carded and hand-spun into a single strand.