Light-Blocking Fabric with Filled Mesh to Prevent Winding Wrinkles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vertical blinds suffer from wrinkles when wound in a roll form due to differences in thickness and circumference between light-transmitting and light-shielding parts, and gaps become eccentrically widened when folded, compromising aesthetic appearance and productability.
Innovation Solution
A light-blocking fabric is manufactured by attaching a light-transmitting mesh part between two light-shielding non-transparent parts, with the mesh part overlapping at least half of one surface of the light-shielding parts along the longitudinal direction, using methods like hot melting, adhesive, sewing, or ultrasonic welding, and processed through a fabric processing apparatus to ensure uniform winding and attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light-transmitting mesh fabric is used for the light-transmitting part, then light transmittance and decorative effect are improved, but wrinkles are generated on the light-transmitting part when wound in a roll form due to thickness difference with the light-shielding part
Solution Approach 1:
The patent changes the physical parameters of the light-transmitting part by filling the mesh fabric with cotton or other filling materials. This increases the thickness of the light-transmitting part to match the thickness of the light-shielding part, thereby eliminating the thickness difference that causes wrinkles during rolling while maintaining light transmittance and decorative effects.
2Manufacturing precision
If the light-transmitting part is made thinner to reduce thickness difference, then wrinkle formation is reduced, but the decorative effect and insulating effect are diminished
Solution Approach 1:
Instead of reducing the thickness of the light-transmitting part, the patent adds filling materials to increase its thickness. This approach maintains the decorative effect and insulating effect of the mesh fabric while achieving thickness uniformity with the light-shielding part, thus avoiding wrinkles during rolling.
3Reliability
If the light-shielding part is made thicker to improve privacy protection, then privacy function is enhanced, but wrinkles are generated on the inside of the light-shielding part when wound due to circumference difference
Solution Approach 1:
The patent balances the thickness of the light-shielding part with the filled light-transmitting part. By adjusting the filling amount in the light-transmitting part to match the thickness of the light-shielding part, the patent eliminates circumference differences that cause wrinkles during rolling while maintaining adequate privacy protection.
4Ease of manufacture
If a single-layer fabric structure is used, then manufacturing simplicity is maintained, but the fabric cannot provide both shading function and decorative effect simultaneously
Solution Approach 1:
The patent merges multiple functions into a single integrated fabric structure by combining the light-shielding part and light-transmitting part with filling materials into one composite fabric. This multi-functional fabric simultaneously provides shading, privacy protection, decorative effect, and insulating effect, eliminating the need for separate components while maintaining manufacturing efficiency.
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 prevents wrinkles in the light-blocking fabric when wound and maintains even gaps when the blind is folded, enhancing aesthetic appeal and product quality by balancing thickness and preventing eccentric widening of gaps.
Implementation Method 1
two light-shielding parts made of a non-transparent fabric; and a light-transmitting part located between the two light-shielding parts
Implementation Method 2
the light-transmitting part made of a mesh fabric between two light-shielding parts made of a non-transparent fabric... attached together by various methods such as hot melting, an adhesive, sewing, or ultrasonic welding
Implementation Method 3
attached together by various methods such as hot melting, an adhesive, sewing, or ultrasonic welding
Data Source
AI summary
The present invention relates to: a light-blocking fabric usable in blinds for shading or wind protection; and a manufacturing method therefor. The light-blocking fabric including: two light-shielding parts which are made of a non-transparent fabric; and a light-transmitting part located between the two light-shielding parts, and attached to a position that is at least half of any one surface of the light-shielding parts so as to overlap therewith in the longitudinal direction, wherein the light-shielding parts and the light-transmitting part can be attached together by various methods such as hot melting, an adhesive, sewing, or ultrasonic welding.