Removable Textile Printing Paste Composition for Waste Reduction
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Solution Overview
Problem
Current textile production methods result in significant waste due to the difficulty in removing special prints from textiles, which are often discarded despite being usable, leading to resource inefficiency and waste.
Innovation Solution
A removable, temporary printing paste composed of water, alkali metal salts, natural polymers, and optional additives, designed to be easily removable from substrates without leaving residues, while maintaining adhesion to withstand wear and tear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional printing paste is used on textile, then the print adheres well and withstands wear and tear, but the print cannot be easily removed and textile waste increases
Solution Approach 1:
The printing paste uses natural polymers (cellulose, starch, protein) as binders instead of conventional synthetic polymers, changing the chemical composition parameters to enable water-based removal while maintaining adhesion during use. This parameter change allows the paste to be removed easily with water after drying, resolving the contradiction between strong adhesion and ease of removal
Solution Approach 2:
The printing paste exploits the phase transition of water from liquid to solid (freezing) and back to liquid (thawing/removal). The natural polymer binder allows the paste to adhere in solid form and be removed by reversing the phase transition through water application, enabling both strong adhesion during wear and easy removal afterward
2Adaptability or versatility
If textiles with special prints are discarded, then consumer taste preferences are met, but resource waste increases
Solution Approach 1:
The invention enables recovery of textile substrates by allowing easy removal of printing paste through water treatment. Textiles with unwanted prints can be cleaned and reused for other purposes, transforming the discarding process into a recovery and reuse cycle, thereby reducing textile waste while maintaining consumer preference adaptability
Solution Approach 2:
The removable printing paste enables textiles to serve multiple functions over time. A textile can be printed for a specific occasion, then cleaned and reused for different purposes, increasing the versatility and lifecycle of the textile product while reducing waste
3Ease of operation
If removable printing paste is used, then textile reuse is enabled, but the paste must maintain adhesion during use
Solution Approach 1:
The natural polymer binders (cellulose, starch, protein) change their adhesion parameters based on environmental conditions. During use, they maintain strong adhesion through hydrogen bonding and physical entanglement. During removal, water application changes the parameters by disrupting these bonds, enabling easy removal while maintaining adhesion reliability during the functional period
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 printing paste allows for easy removal from textiles without leaving residues, promoting resource reuse and reducing waste, while being environmentally friendly and suitable for various printing methods.
Implementation Method 1
at least one natural polymer selected from cellulose, cellulose derivatives, polysaccharides, collagens or mixtures thereof
Implementation Method 2
Drying the printed substrate
Data Source
Figure 1a~2b
AI summary
The present invention relates to a removable, temporary printing paste particularly suitable for printing textile. The present invention further relates to a method for manufacturing the printing paste as well as to the method for printing the printing paste onto a substrate, in particular onto textile. Further encompassed is a method of removing the printing paste from the substrate.