Custom Textile Dyeing With Cationic Cotton for Low-Effluent Patterns
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Solution Overview
Problem
Consumer choice for textile products is limited by the restricted number of colors and patterns offered by manufacturers, making it difficult for customers to obtain garments or fabrics in their desired colors and patterns, and existing dyeing methods are environmentally unfriendly and inefficient.
Innovation Solution
A business method that allows customers to select the size, style, pattern, and color of fabric materials, using undyed fabric made from varying ratios of cationic cotton and natural cotton, which is dyed using anionic dyes under environmentally friendly conditions, eliminating the need for salts or alkalis and reducing dye effluent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional dyeing methods are used to provide color variety, then consumer choice for colors and patterns is improved, but environmental pollution increases due to harmful effluent discharge
Solution Approach 1:
The patent changes the chemical parameters of the dyeing process by using fiber-reactive dyes that form covalent bonds with cotton fibers, eliminating the need for salt and alkali. This parameter change allows for vibrant color fastness without the harmful effluent discharge associated with traditional dyeing methods, thus resolving the contradiction between consumer choice and environmental pollution.
Solution Approach 2:
The patent applies different dye concentrations and exposure times to different areas of the fabric to create various patterns including ombré, tie-dye, and batik effects. This local quality approach allows customers to choose from diverse patterns while using the same environmentally friendly dyeing process, maintaining consumer choice without increasing pollution.
2Adaptability or versatility
If custom dyeing is performed for each customer, then product customization is improved, but production time increases
Solution Approach 1:
The patent pre-treats cotton fabrics with enzymes or chemical agents to prepare them for rapid dyeing. This preliminary action ensures that when customers place custom orders, the dyeing process can be completed quickly with consistent results, reducing the time loss associated with custom production while maintaining high customization capability.
Solution Approach 2:
The patent modifies the dyeing process parameters including temperature, time, and chemical composition to optimize for speed without sacrificing color fastness. By changing these parameters, the system can produce customized garments rapidly while maintaining quality, thus resolving the contradiction between customization and production time.
3Object-generated harmful factors
If fiber-reactive dyes are used without salt or alkali, then environmental friendliness is improved, but dye fastness and color vibrancy worsen
Solution Approach 1:
The patent changes the chemical parameters by using fiber-reactive dyes that form covalent bonds with cotton fibers, eliminating the need for salt and alkali. This parameter change allows for vibrant color fastness without the harmful effluent discharge associated with traditional dyeing methods, thus resolving the contradiction between consumer choice and environmental pollution.
Solution Approach 2:
The patent uses composite dye formulations that combine fiber-reactive dyes with mordants or fixing agents that enhance color fastness without requiring salt or alkali. This composite approach maintains environmental friendliness while improving dye reliability and color vibrancy.
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
Enables rapid production of customized textiles with preferred colors and patterns, ensuring washfastness and environmental sustainability by using cationic cotton, which attracts dyes without the need for salts or alkalis, allowing for quick dyeing at lower temperatures and minimal waste.
Implementation Method 1
The dye preferentially adheres to cationic cotton, as opposed to natural cotton
Implementation Method 2
fabrics or garments that are made from yarns which have varying ratios of cationic cotton to natural cotton will have stripes, shade gradations, and other patterns of interest to customers
Data Source
AI summary
Customers obtain customized textile materials by selecting style, shape, size, pattern and color for an undyed textile product. Based on a selection made by the customer, the textile product is transformed by a dyeing operation performed on a single item to yield a product, such as a shirt, pants, or jacket, which has a color and pattern of his or her own choosing, in the size and style he or she desires. The process can be performed in a retail setting using a dye machine which allows the process to be viewed by the customer. Preferably, the textile material is constructed from yarns which include cationic cotton alone or in combination with natural cotton or other natural or synthetic fibers, and using anionic dyes, such as a fiber reactive dye, such that the dye is exhausted during the process and effluent from the dye machine is environmentally friendly without excess dye, salts, and alkalis.