Microcapsule Textile Bonding for Breathable Protective Fabrics
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Solution Overview
Problem
Existing textile materials loaded with active ingredients face challenges in achieving controlled release and adequate concentration of active substances, often resulting in inadequate breathability and mechanical stability due to the use of complex composite materials or full-surface coatings that compromise air permeability.
Innovation Solution
A functional textile material with microcapsules containing phase change materials bonded to a textile carrier using a discontinuous adhesive application, ensuring at least 50% of the microcapsule surface remains uncovered for efficient active ingredient release, combined with a chemical poisons-adsorbing adsorbent based on activated carbon for enhanced breathability and mechanical resilience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If microcapsules are embedded in complex composite materials or introduced into coatings, then active ingredient concentration and controlled release are improved, but air permeability and breathability are compromised
Solution Approach 1:
The invention divides the coating surface into discrete bonding points rather than applying continuous coating coverage. Microcapsules are bonded at specific segmented locations (adhesive dots or points) distributed across the substrate, allowing air and water vapor to pass through the uncoated areas while still providing effective active ingredient delivery.
Solution Approach 2:
The adhesive application is localized to specific points or small areas rather than covering the entire surface uniformly. This creates zones of different properties: bonded zones where microcapsules are attached and unbonded zones that maintain breathability and air permeability characteristics of the original fabric.
2Strength
If continuous coating is applied to bond microcapsules, then mechanical stability is improved, but flexibility and air permeability deteriorate
Solution Approach 1:
The bonding system is segmented into discrete adhesive points rather than continuous coating. This segmentation provides mechanical stability at bonding locations while leaving the fabric structure flexible and breathable in between the bonding points.
Solution Approach 2:
Only partial bonding coverage is applied - sufficient adhesive is used to secure microcapsules at key locations, but not enough to create continuous coating that would restrict fabric movement or breathability. The partial action maintains flexibility while achieving necessary mechanical stability.
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 solution provides a highly breathable, mechanically stable, and flexible textile material with increased active ingredient efficiency and wearing comfort, while maintaining a low basis weight, ensuring controlled release of active ingredients and effective adsorption of chemical poisons.
Implementation Method 1
the microcapsules contain a phase change material (phase change material) as the active ingredient, wherein the phase change material is a material with a solid/liquid or liquid/solid phase transition and wherein the Phase change material generates heat or cold during the phase transition
Implementation Method 2
the microcapsules are bonded to the textile carrier by a discontinuous application of adhesive
Implementation Method 3
the textile support also comprises a chemical poisons-adsorbing adsorbent based on activated carbon in the form of activated carbon particles and/or activated carbon fibers
Data Source
AI summary
Functional textile material comprises a textile support (2), to which microcapsules (3) containing active materials are glued. Independent claims are included for: (1) protective clothing, gloves, shoes, socks, head coverings and sleeping bags, for civil and military use, especially in the nuclear, biological and chemical areas, which contain the textiles; and (2) filters for removing harmful materials, odors and poisons from air or gases, e.g. masks for use in the nuclear, biological and chemical areas, air filters for rooms and for use in medicine, which are produced using the textiles.