Heat-Insulating UV-Resistant Fabric via Near-Infrared Reflecting Dye
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Solution Overview
Problem
The textile industry faces challenges in developing heat-insulating and UV-resistant fabrics, particularly for dark-colored fabrics, which require improved thermal insulation properties while maintaining UV resistance and economic production costs.
Innovation Solution
A fabricating method that incorporates near-infrared reflecting dye into the raw material during the melt-spinning process, followed by a weaving and post-treatment dyeing process, to create heat-insulating and UV-resistant fabrics that can be dyed to dark colors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional titanium dioxide additives are used for UV resistance, then UV resistance is improved, but the fabric cannot be dyed to dark colors
Solution Approach 1:
The patent changes the chemical composition parameter by replacing titanium dioxide with near-infrared reflecting dyes (specifically titanium antimony nickel yellow dye) that have different optical properties. This substitution allows the fabric to maintain UV resistance while being compatible with dark-color dyeing processes, as the new dyeing agents do not interfere with the near-infrared reflecting properties
Solution Approach 2:
The patent creates a composite material system by incorporating near-infrared reflecting dyes into the fiber structure during melt-spinning, combining the UV-blocking properties with the ability to accept dark-color dyes in subsequent post-treatment dyeing processes. This composite approach integrates multiple functions into a single material system
2Temperature
If near-infrared reflecting dye is incorporated during melt-spinning, then thermal insulation is improved, but the dyeing process complexity increases
Solution Approach 1:
The patent applies preliminary action by incorporating the near-infrared reflecting dye into the raw material during the melt-spinning process, establishing the thermal insulation properties before the fabric is formed. This preliminary incorporation simplifies subsequent dyeing operations, as the thermal insulation function is already integrated into the fiber structure
Solution Approach 2:
The near-infrared reflecting dye serves multiple functions: it provides thermal insulation by reflecting near-infrared radiation, maintains UV resistance properties, and remains compatible with post-treatment dyeing processes for achieving dark colors. This multi-functionality reduces the need for separate processing steps
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 effectively enhances the thermal insulation and UV resistance of fabrics while allowing for dark-color dyeing, improving production convenience and meeting economic costs, as demonstrated by improved K/S values and UPF ratings.
Implementation Method 1
the raw material includes a near-infrared reflecting masterbatch, the near-infrared reflecting masterbatch includes a near-infrared reflecting dye
Implementation Method 2
the UV-resistant masterbatch includes titanium dioxide
Data Source
AI summary
A fabricating method of a heat-insulating and UV-resistant fabric includes the following steps. A melt-spinning step is performed on a raw material to form a plurality of fibers, in which the raw material includes a near-infrared reflecting masterbatch, the near-infrared reflecting masterbatch includes a near-infrared reflecting dye, and when a content of the fibers is 100 wt%, a content of the near-infrared reflecting dye is 0.5 wt% to 1.0 wt%. The fibers are weaved to form the heat-insulating and UV-resistant fabric. A post-processing dyeing step is performed on the heat-insulating and UV-resistant fabric.