Patent Application
20250034767
The present invention relates to a yarn for textiles, in particular a fiber with a multi-filament structure, and its use in textile fabrics, curtains, and screens.
The atmosphere at the Earth's surface provides the oxygen essential for human respiration. Emissions and dust from factories, exhaust and dust from human activities, and transportation all contribute to air pollution. Particulate matter (PM), dust, and particles in the air not only pollute the home environment, but also adversely affect human respiratory health and plant respiration mechanisms.
Conventional window and door screens are primarily designed to keep insects out while allowing ventilation. However, the mesh size of these screens cannot prevent smog and dust from entering the home with the air, nor can they prevent rainwater from entering the home on rainy days.
To maintain a clean home environment, some manufacturers have developed metal wire mesh screens with an electrostatic nanofilm layer on both the inner and outer surfaces to filter particulate matter (PM) while providing water repellency and ventilation. However, the electrostatic nanofilm layer on the mesh surface is not durable when exposed to wind and sunlight, and its production cost is high. Other manufacturers have developed screens using multiple screen yarns, each coated with sodium polyacrylate, a water-absorbing polymer. This material expands when wet and contracts when dry, opening and closing the gaps between the screen yarns to provide water resistance and ventilation. However, sodium polyacrylate's poor heat resistance and inability to withstand prolonged sun exposure are significant drawbacks.
There are window screens on the market that are made of textile fabric woven in a shuttle (plain) weave and coated with a water-repellent layer. These screens are effective at blocking particulate matter (PM), dust, or sand, while maintaining air circulation and repelling rainwater. However, the spatial structure of the shuttle (plain) weave is prone to yarn slippage. When used in architectural window screens and installed in window frames, the water-repellent coating can cause the fabric to slip out of the frame, resulting in an uneven screen surface that compromises aesthetics. Additionally, it is not suitable for use in retractable screens due to its lack of elasticity and flexibility.
The primary purpose of the present invention is to provide a fiber with a multi-filament structure and textile fabrics, curtains, and screens incorporating such fiber, which can block dust, particulate matter (PM), and sand in the air while also preventing water penetration, repelling water, blocking rainwater from entering indoor spaces, and maintaining ventilation at a low cost.
A secondary purpose of the present invention is to provide a fiber with a multi-filament structure and textile fabrics, curtains, and screens incorporating such fiber, which have a longer service life.
Another purpose of the present invention is to provide a fiber with a multi-filament structure and textile fabrics, curtains, and screens incorporating such fiber, which can be used in window screens, retractable screen fabrics, and agricultural planting fields.
An additional purpose of the present invention is to provide a fiber with a multi-filament structure and textile fabrics, curtains, and screens incorporating such fiber, which have flame-retardant properties for home safety.
To achieve the aforementioned purposes, the present invention provides a fiber with a multi-filament structure and textile fabrics, curtains, and screens incorporating such fiber. The multi-filament fiber includes at least multiple filaments and a blended material. Each filament is a columnar body arranged adjacently or in a spiral adjacent arrangement to form a yarn having an appropriate length. The blended material includes at least a nano-fluorine water-repellent material and a bonding material provided in the gaps between the filaments. The present invention further uses the multiple fibers arranged at intervals in the left-right direction or the multiple fibers arranged at intervals in the up-down direction to form a meshed textile fabric through knitting in the weft or warp direction. The meshed textile fabric is further coated with an adhesive and a nano-fluorine water-repellent material for use in screens to achieve water repellency and air pollution prevention. The meshed textile fabric also has better stiffness, elasticity, and transparency, making it suitable for use in a retractable screen fabric.
The following are some of the preferred embodiments of the present invention, which are further described in detail with the following drawings:
Reference is made to
Referring again to
The water-repellent material can be a mixture of water, perfluoroalkyl ethyl acrylate copolymer, and dipropylene glycol methyl ether. The bonding material, such as an adhesive like ethyl acetate, is used to adhere the blended material 14 to the yarn. In the present invention, the perfluoroalkyl ethyl acrylate copolymer water-repellent is used to impart a hydrophobic property to the yarn, as well as to achieve sun resistance, heat resistance, transparency, and wash resistance, thereby increasing the life of the yarn. Perfluoroalkyl ethyl acrylate copolymer is commercially available. Of course, other types of water-repellents with the water-repellent property can also be obtained commercially, but perfluoroalkyl ethyl acrylate copolymer has better performance. In addition, non-fluorinated acrylic copolymers can also be used as water-repellents to achieve the above effects.
The flame-retardant material can include compounds containing C15H31O9P3 (flame-retardant FRC-1) and C9H20O6P2 (methyl (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methylphosphonate).
During the yarn spinning process, each filament 22 can be mixed with multiple colored powders or color masterbatches, and the colored powders are distributed in the pores of each filament 22 to form colored monofilament yarn. The color of the colored powder or color masterbatch can be black, purple, or green to form monofilament yarn that is opaque or not completely transparent. If each filament 22 is not mixed with colored powders or color masterbatches during the spinning process, the resulting monofilament yarn will be transparent or not completely transparent.
With reference to
Due to the durability of the meshed textile fabric 10, the number of loops in the course and wale directions, and the 500-2000 meshes, it can effectively prevent particulate matter (PM), dust, or sand in the air from passing through while maintaining air circulation and transparency. Therefore, using the meshed textile fabric 10 as an agricultural planting screen can effectively prevent air pollution on leaves, flowers, and fruits while maintaining air circulation, and using the meshed textile fabric 10 as a smog-proof window screen in the construction industry can effectively prevent air pollution indoors while maintaining air circulation.
Furthermore, due to its better elasticity/flexibility, the knitted meshed textile fabric 10 is also more suitable for use in retractable screen fabrics, curtain or roller blind.
In addition, one knitting method for the meshed textile fabric 10 is to knit one side of the corresponding two sides of the textile fabric 10 with the fiber 12 of 40-60 denier in the weft direction and the other side with the fiber 12 of 130-150 denier in the weft direction. In other words, using a circular knitting machine to produce a double-sided interlocked mesh structure in weft knitting, or using a warp knitting machine to produce a mesh structure in warp knitting on the corresponding two sides. As a result, the meshed textile fabric 10 has a relatively fine side and a rough side on its respective two sides. The rough side corresponds to the exterior having a better filtering effect, while the fine side corresponds to the interior having a light-transmitting effect.
With reference to
In the present invention, water repellency is enhanced by the nano-fluorine water-repellent material used in the blended material 14 and/or the coating layer 16. When applied to the window screen and left open on a rainy day, rain water hardly adheres to the screen, thus eliminating the concern of water seeping into the interior. In addition, dust adhering to the screen can be easily washed off with water or carried away by rain.
By incorporating the flame-retardant material into the blended material 14 and/or the coating layer 16, the present invention achieves flame retardant and fireproof properties.
Furthermore, the meshed textile fabric 10 disclosed in the present invention can be made without the blended material 14 on each fiber 12 but with the coating layer 16 and still achieve water-repellent/water-resistant, durable, mold-resistant, and flame retardant/fireproof properties. In the manufacturing process, this eliminates the step of coating the yarn with the blended material 14 or immersing the yarn in the blended material 14. The coating layer 16 is applied to the meshed textile fabric 10 only after the yarn is knitted, which can reduce manufacturing costs.
In the present invention, high-polymer greige composite yarn is used as the base material. Its surface or exterior is coated with adhesive resin and nano-fluorine water-repellent to form fibers that exhibit weather adaptability, UV resistance, and color fastness. This solution addresses the issues of poor heat resistance associated with sodium polyacrylate and the high cost of metal yarn.
The present invention uses the surface tension of the water-repellent material of the coating layer 16 to make the meshed textile fabric 10 prevent the passage of haze/smog and have a more anti-haze effect.
In the present invention, the blended material 14 or the coating layer 16 can comprise an emulsifier such as a cleaning agent/detergent for completely mixing. Preferably the emulsifier can be a solvent-free cleaning agent/detergent.
The present invention employs a knitted textile fabric having a loop structure in the course and wale directions, which makes it less prone to yarn slippage. In particular, when used in architectural window screens and installed in window frames, the loop structure of the present invention provides better slip resistance and is less likely to slip out of the window frame, providing a better assembly degree of freedom.
| Number | Date | Country | Kind |
|---|---|---|---|
| 112207857 | Jul 2023 | TW | national |
