Method for manufacturing burnout fabric
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Solution Overview
Problem
Existing burnout fabric production methods suffer from issues such as insufficient transparency, unclear patterns, excessive patterns, imperfect patterns, and broken threads, which affect the overall quality.
Innovation Solution
A method involving pretreatment of greige fabric with core-spun yarns having hydrophobic polyester filaments wrapped with hydrophilic cotton fibers, optimized weaving parameters, and a burnout paste composition of sulfuric acid, synthetic gum tragacanth, and sodium alginate, followed by specific post-treatments to achieve a clear pattern outline and desirable tightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional burnout printing is used, then the fabric can be processed, but the burnout portion has insufficient transparency
Solution Approach 1:
The patent changes the chemical parameters of the burnout paste by using a specific combination of sulfuric acid (30-50 parts), synthetic gum tragacanth (40-60 parts), and sodium alginate (5-15 parts). This parameter optimization ensures complete fiber dissolution while maintaining pattern definition, achieving both transparency and manufacturing precision.
2Shape
If conventional burnout printing is used, then the fabric can be processed, but the pattern outline is unclear
Solution Approach 1:
The patent uses synthetic gum tragacanth and sodium alginate as intermediary substances that control the flow and adhesion of the sulfuric acid paste. These intermediaries ensure the paste remains in the printed areas during processing, creating sharp pattern outlines while allowing complete dissolution of the burnout portions.
3Quantity of substance
If conventional burnout printing is used, then the fabric can be processed, but excessive patterns are produced
Solution Approach 1:
The patent applies burnout paste to specific portions of the fabric rather than the entire surface. By controlling the application area and using the thickening properties of synthetic gum tragacanth and sodium alginate, the process achieves precise pattern control while producing the desired quantity of burnout effects.
4Reliability
If conventional burnout printing is used, then the fabric can be processed, but imperfect patterns and broken threads occur
Solution Approach 1:
The patent performs preliminary treatment of the greige fabric before burnout printing, including proper tensioning and positioning. The burnout paste contains synthetic gum tragacanth and sodium alginate that provide temporary structural support during processing, preventing thread breakage while ensuring perfect pattern formation. After processing, these intermediaries are easily removed.
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 a high-quality burnout fabric with a clear pattern outline, desirable number of patterns, and no broken threads, while being cost-effective and environmentally friendly.
Implementation Method 1
burnout paste containing sulfuric acid, synthetic gum tragacanth, and sodium alginate
Implementation Method 2
baking or steaming the clothes printed with the burnt-out paste by steam, and carbonizing cellulose fibers
Implementation Method 3
steam heating the fabric
Data Source
AI summary
Disclosed is a method for making a burnout fabric, including: (1) pre-treating a greige fabric; (2) processing the pre-treated greige fabric with a burnout paste containing sulfuric acid, synthetic gum tragacanth, and sodium alginate; and (3) post-treating the greige fabric after the burnout treatment to obtain a burnout fabric. The method according to the present invention is simple in process, low in cost, and easy to implement, and the burnout fabric obtained thereby has an attractive and clear pattern, featuring a three-dimensional effect and a high quality.