Compression Garment Anti-Slip Zone Knitted High-Friction Yarn
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Solution Overview
Problem
Compression garments for medical use face challenges in achieving an anti-slip effect without risking strangulation or excessive compression, as existing solutions often require additional components or complex fabrication steps, and previous attempts have been unsatisfactory in providing both effective anti-slip and safe pressure distribution.
Innovation Solution
The garment features an anti-slip zone knitted with fine high-friction yarn directly on the circular knitting machine, covering the entire circumference of the welt portion, ensuring a high-friction zone on the inside welt, which is folded to create an outside and inside welt, with the anti-slip zone integrated seamlessly to maintain consistent pressure and prevent strangulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an anti-slip band is added to the welt portion, then the anti-slip effect is improved, but the device complexity and fabrication difficulty increase due to separate joining operations
Solution Approach 1:
The anti-slip band and the welt portion are merged into a single integrated component. The anti-slip band is knitted directly into the welt portion using the same circular knitting machine, eliminating the need for separate joining operations. This integration maintains the anti-slip effect while significantly simplifying the fabrication process and reducing device complexity.
Solution Approach 2:
The welt portion serves multiple functions: it provides the structural edge of the garment, delivers compression therapy, and incorporates the anti-slip band to prevent garment migration. By combining these functions into a single component knitted with high-friction yarn, the invention eliminates the need for separate anti-slip bands while achieving multi-functionality.
2Reliability
If an elastic garter band is added to provide anti-slip effect, then position holding is improved, but the risk of strangulation increases due to excessive compression
Solution Approach 1:
The anti-slip band is constructed with high-friction yarn that provides enhanced grip without increasing compression pressure. The local quality of the yarn (high friction coefficient) is optimized to prevent slipping while maintaining pressure levels that are safe for medical use, avoiding the tourniquet effect associated with traditional elastic garter bands.
Solution Approach 2:
The invention changes the material parameter of the welt portion by using high-friction yarn instead of traditional elastic garter band materials. This parameter change (friction coefficient) provides the anti-slip effect without the elastic properties that cause excessive compression and strangulation risk in medical compression garments.
3Reliability
If silicone coating is applied to the welt portion, then the anti-slip effect is improved, but the manufacturing complexity increases due to additional fabrication steps
Solution Approach 1:
The invention extracts the anti-slip function from a separate coating process and integrates it directly into the knitting process itself. By using high-friction yarn during the knitting of the welt portion, the anti-slip effect is built-in during the primary manufacturing process, eliminating the need for subsequent silicone coating operations and simplifying fabrication.
Solution Approach 2:
The knitting machine and high-friction yarn combination provides the anti-slip effect inherently during the normal knitting process. The garment structure itself serves the anti-slip function through its material composition, eliminating the need for external coating processes or additional manufacturing steps.
4Reliability
If a laid-in high-friction yarn is used in knitting, then the anti-slip effect is improved, but the pressure distribution becomes uneven causing localized excessive pressure
Solution Approach 1:
The anti-slip function is segmented from the compression function by using high-friction yarn specifically in the welt portion where anti-slip is needed, while the main body of the garment uses yarn optimized for compression therapy. This segmentation allows each zone to perform its specific function without interfering with pressure distribution uniformity in the compression zones.
Solution Approach 2:
The high-friction yarn is applied locally only to the welt portion where anti-slip effect is required, rather than throughout the entire garment. This local application provides the necessary grip at the top edge while allowing the rest of the garment to maintain uniform pressure distribution for effective compression therapy.
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
This solution provides a robust anti-slip effect while maintaining uniform pressure distribution, avoiding the risks associated with previous methods, and is fabricated without additional components, ensuring the garment remains in place without causing discomfort or increased pressure.
Implementation Method 1
an anti-slip zone knitted with fine high-friction yarn directly on the circular knitting machine, covering the entire circumference of the welt portion, ensuring a high-friction zone on the inside welt
Data Source
Figure 1~3
Figure 4A~4C
Figure 5
AI summary
The invention relates to a garment (10; 100) including a knitted, circumferentially-extending welt portion having a anti-slip zone (50) comprising a high friction yarn (61, 62, 63) integrally formed on a inner face of a main garment portion (11; 110) such that the high friction yarn contacts a wearer's skin to increase the anti-slip properties of the garment. The invention also relates to a method for constructing such a garment.