A ring-gap type flax core yarn and a method for manufacturing the same
By setting an annular adhesion layer on the outside of the inner core layer and using specific components to improve adhesion and breathability, the problem of insufficient breathability and moisture wicking of flax fibers is solved, achieving a balance between good elasticity, breathability and moisture wicking.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU HUAXIN LINEN TEXTILE
- Filing Date
- 2024-05-30
- Publication Date
- 2026-05-26
AI Technical Summary
Flax fiber has good elasticity but poor breathability and moisture wicking properties, which affect its appearance and added value.
An annular attachment layer is set on the outside of the inner core layer. The annular attachment layer has a spiral annular gap around its perimeter. Styrene-butadiene latex, surfactants, polyurethane and breathable fiber powder are used to improve adhesion and breathability. The outer core layer is covered with flax yarn to form a spiral annular gap.
It significantly improves the breathability and moisture wicking properties of linen core-spun yarn, while maintaining its elasticity and enhancing its aesthetics and added value.
Smart Images
Figure CN118497944B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a ring-gap flax core-spun yarn and its preparation method. Background Technology
[0002] Flax is one of the earliest natural fibers used by humankind, dating back over 10,000 years. Flax fiber is a rare natural fiber. It possesses functions such as moisture absorption and heat dissipation, health benefits and antibacterial properties, stain resistance, antistatic properties, and UV protection, and also has excellent flame retardant effects. However, due to the low breaking elongation and high orientation and crystallinity of flax fibers, fabrics made from flax are prone to wrinkling and wrinkles are difficult to recover, greatly affecting the aesthetics of flax fabrics and reducing their added value. To address this, flax is typically used to wrap elastic filament fibers to form core-spun yarn. By using the elastic filament fibers as a carrier, flax gains excellent elasticity and resilience. However, this core-spun structure reduces breathability and moisture wicking compared to the original structure. Therefore, it is necessary to improve both elasticity and breathability and moisture wicking. Summary of the Invention
[0003] To address the shortcomings of the existing technology, the present invention provides a ring-gap flax core-spun yarn with good elasticity, breathability, and moisture wicking properties, and a method for preparing the same.
[0004] To solve the above problems, the technical solution adopted by the present invention is as follows:
[0005] A ring-gap flax core-spun yarn includes an inner core layer, a ring-gap attachment layer, and an outer core-spun layer; the ring-gap attachment layer is disposed on the outer side of the inner core layer; the outer periphery of the ring-gap attachment layer has a spiral annular gap for air permeability; the outer core-spun layer is disposed on the outer periphery of the ring-gap attachment layer; the inner core layer is made of elastic filament fiber; the outer core-spun layer is made of flax yarn.
[0006] Furthermore, the inner core layer is made of XLA elastic filament fiber.
[0007] Furthermore, the annular gap adhesion layer comprises the following components: styrene-butadiene latex, surfactant, polyurethane, and breathable fiber powder; the weight parts of each component are: 10 to 20% styrene-butadiene latex, 5 to 8% surfactant, 2 to 5% polyurethane, and 10 to 15% breathable fiber powder.
[0008] Furthermore, the weight parts of each component are: 45% styrene-butadiene latex, 6% surfactant, 4% polyurethane, and 14% breathable fiber powder.
[0009] Furthermore, the surfactant is stearic acid or dodecyl phosphoric acid.
[0010] Furthermore, the breathable fiber powder is bamboo fiber powder.
[0011] A method for preparing ring-gap flax core-spun yarn, comprising the following steps:
[0012] S1. Flax processing: The raw flax is threshed into flax, moistened, and then spun into flax slivers by a sliver forming machine. The flax slivers are then spun into rovings by a drawing frame, and the rovings are twisted into fine yarns using a spinning frame.
[0013] S2. Preparation of the adhesion layer: Mix 10 to 20% styrene-butadiene latex solution, 5 to 8% surfactant, 2 to 5% polyurethane, and 10 to 15% breathable fiber powder to obtain the adhesion layer slurry.
[0014] S3. Coating slurry: The inner core layer filaments are semi-dried after passing through the coating slurry.
[0015] S4, Spiral winding: Polytetrafluoroethylene filaments are spirally wound around the outer periphery of the adhesion layer in step S3, so that the polytetrafluoroethylene filaments are embedded in the outer periphery of the adhesion layer, and then dried and cured.
[0016] S5. Recycled filaments: The polytetrafluoroethylene filaments are wound up and recycled, and a spiral annular gap is formed around the adhesion layer to form an annular adhesion layer.
[0017] S6. Covering: The flax yarn from step S1 is covered around the outer perimeter of the annular attachment layer from step S5 using a spinning machine.
[0018] Furthermore, the concentration of the styrene-butadiene latex solution in step S2 is 30%.
[0019] Furthermore, the drying temperature in step S3 is 50 to 60°C.
[0020] Furthermore, the drying temperature in step S4 is 100 to 120°C.
[0021] The beneficial effects of this invention are as follows:
[0022] This invention provides an annular attachment layer around the outer perimeter of the inner core layer. The annular attachment layer has spiral annular gaps around its outer perimeter. When the flax yarn of the outer core layer is wrapped, the inner side of the outer core layer has spiral annular gaps. Compared with the traditional solid wrapping, this greatly improves the breathability and moisture wicking.
[0023] This invention incorporates styrene-butadiene latex, surfactants, polyurethane, and breathable fiber powder into the adhesion layer. The styrene-butadiene latex and surfactants enhance the adhesion and dispersibility of the entire system, while the polyurethane improves the abrasion resistance and stability. The addition of breathable fiber powder increases the breathability of the adhesion layer. This allows the entire adhesion layer to adhere stably, uniformly, and breathably to the outer side of the inner core layer. By embedding, drying, and recycling polytetrafluoroethylene filaments on the outer side of the adhesion layer, a spiral-shaped annular void is rapidly formed around the outer perimeter of the adhesion layer. The process design is ingenious and the operation is highly efficient. Attached Figure Description
[0024] Figure 1 This is an enlarged cross-sectional schematic diagram of the present invention.
[0025] Figure 2 This is a schematic diagram of a partial structure of the outer side of the annular gap adhesion layer of the present invention. Detailed Implementation
[0026] The invention will now be described in further detail with reference to the accompanying drawings.
[0027] like Figure 1 and 2 As shown, a ring-gap flax core-spun yarn includes an inner core layer 1, a ring-gap attachment layer 2, and an outer core-spun layer 3. The ring-gap attachment layer 2 is disposed on the outer side of the inner core layer 1. The outer periphery of the ring-gap attachment layer 2 has spiral annular gaps 21 for air permeability. The outer core-spun layer 3 is disposed on the outer periphery of the ring-gap attachment layer 2. The inner core layer 1 is made of elastic filament fiber. The outer core-spun layer 3 is made of flax yarn. Further, the inner core layer 1 is made of XLA elastic filament fiber. Example 1
[0028] A method for preparing ring-gap flax core-spun yarn, comprising the following steps:
[0029] S1. Flax processing: The raw flax is threshed into flax, moistened, and then spun into flax slivers by a sliver forming machine. The flax slivers are then spun into rovings by a drawing frame, and the rovings are twisted into fine yarns using a spinning machine.
[0030] S2. Preparation of the adhesion layer: Mix 10% styrene-butadiene latex solution, 5% stearic acid, 2% polyurethane, and 10% bamboo fiber powder to obtain the adhesion layer slurry; the concentration of the styrene-butadiene latex solution is 30%.
[0031] S3. Coating with slurry: The inner core filaments are semi-dried after passing through the coating slurry; the drying temperature is 50℃.
[0032] S4. Spiral winding: Polytetrafluoroethylene filaments are spirally wound around the outer periphery of the adhesion layer in step S3, so that the polytetrafluoroethylene filaments are embedded in the outer periphery of the adhesion layer, and then dried and cured; the drying temperature is 100℃.
[0033] S5. Recycled Filaments: The polytetrafluoroethylene filaments are wound up and recycled, forming a spiral annular gap around the adhesion layer, thus forming an annular adhesion layer.
[0034] S6. Covering: The flax yarn from step S1 is covered around the outer perimeter of the annular attachment layer from step S5 using a spinning machine. Example 2
[0035] A method for preparing ring-gap flax core-spun yarn, comprising the following steps:
[0036] S1. Flax processing: The raw flax is threshed into flax, moistened, and then spun into flax slivers by a sliver forming machine. The flax slivers are then spun into rovings by a drawing frame, and the rovings are twisted into fine yarns using a spinning machine.
[0037] S2. Preparation of the adhesion layer: Mix 45% styrene-butadiene latex, 6% surfactant, 4% dodecyl phosphoric acid, and 14% bamboo fiber powder to obtain an adhesion layer slurry; the concentration of the styrene-butadiene latex solution is 30%.
[0038] S3. Coating slurry: The inner core filaments are semi-dried after passing through the coating slurry; the drying temperature is 55℃.
[0039] S4. Spiral winding: Polytetrafluoroethylene filaments are spirally wound around the outer periphery of the adhesion layer in step S3, so that the polytetrafluoroethylene filaments are embedded in the outer periphery of the adhesion layer, and then dried and cured; the drying temperature is 110℃.
[0040] S5. Recycled Filaments: The polytetrafluoroethylene filaments are wound up and recycled, forming a spiral annular gap around the adhesion layer, thus forming an annular adhesion layer.
[0041] S6. Covering: The flax yarn from step S1 is covered around the outer perimeter of the annular attachment layer from step S5 using a spinning machine. Example 3
[0042] A method for preparing ring-gap flax core-spun yarn, comprising the following steps:
[0043] S1. Flax processing: The raw flax is threshed into flax, moistened, and then spun into flax slivers by a sliver forming machine. The flax slivers are then spun into rovings by a drawing frame, and the rovings are twisted into fine yarns using a spinning machine.
[0044] S2. Preparation of the adhesion layer: Mix 20% styrene-butadiene latex solution, 8% stearic acid, 5% polyurethane, and 15% bamboo fiber powder to obtain the adhesion layer slurry; the concentration of the styrene-butadiene latex solution is 30%.
[0045] S3. Coating with slurry: The inner core filaments are semi-dried after passing through the coating slurry; the drying temperature is 60℃.
[0046] S4. Spiral winding: Polytetrafluoroethylene filaments are spirally wound around the outer periphery of the adhesion layer in step S3, so that the polytetrafluoroethylene filaments are embedded in the outer periphery of the adhesion layer, and then dried and cured; the drying temperature is 120℃.
[0047] S5. Recycled Filaments: The polytetrafluoroethylene filaments are wound up and recycled, forming a spiral annular gap around the adhesion layer, thus forming an annular adhesion layer.
[0048] S6. Covering: The flax yarn from step S1 is covered around the outer perimeter of the annular attachment layer from step S5 using a spinning machine.
[0049] This invention provides an annular attachment layer around the outer perimeter of the inner core layer. The annular attachment layer has spiral annular gaps around its outer perimeter. When the flax yarn of the outer core layer is wrapped, the inner side of the outer core layer has spiral annular gaps. Compared with the traditional solid wrapping, this greatly improves the breathability and moisture wicking.
[0050] This invention incorporates styrene-butadiene latex, surfactants, polyurethane, and breathable fiber powder into the adhesion layer. The styrene-butadiene latex and surfactants enhance the adhesion and dispersibility of the entire system, while the polyurethane improves the abrasion resistance and stability. The addition of breathable fiber powder increases the breathability of the adhesion layer. This allows the entire adhesion layer to adhere stably, uniformly, and breathably to the outer side of the inner core layer. By embedding, drying, and recycling polytetrafluoroethylene filaments on the outer side of the adhesion layer, a spiral-shaped annular void is rapidly formed around the outer perimeter of the adhesion layer. The process design is ingenious and the operation is highly efficient.
[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A method for preparing annular gap flax core-spun yarn, comprising an inner core layer, an annular gap attachment layer, and an outer core-spun layer; wherein the annular gap attachment layer is disposed on the outer side of the inner core layer; The annular adhesion layer has spiral annular gaps on its outer periphery, which are used for air permeability. An outer core-sleeving layer is provided around the periphery of the annular gap attachment layer; the inner core layer is an elastic filament fiber; the outer core-sleeving layer is made of flax yarn; characterized in that the steps are as follows: S1. Initial processing of flax: The raw flax is threshed into flax, moistened and then spun into flax strips by a sliver forming machine. The flax strips are then spun into rovings by a drawing frame. The rovings are then twisted into fine yarns using a spinning frame. S2. Preparation of the adhesion layer: Mix 10 to 20% styrene-butadiene latex solution, 5 to 8% surfactant, 2 to 5% polyurethane, and 10 to 15% breathable fiber powder to obtain the adhesion layer slurry. S3. Coating slurry: The inner core layer filaments are semi-dried after passing through the coating slurry. S4, Spiral winding: Polytetrafluoroethylene filaments are spirally wound around the outer periphery of the adhesion layer in step S3, so that the polytetrafluoroethylene filaments are embedded in the outer periphery of the adhesion layer, and then dried and cured. S5. Recycled filaments: The polytetrafluoroethylene filaments are wound up and recycled, and a spiral annular gap is formed around the adhesion layer to form an annular adhesion layer. S6. Covering: The flax yarn from step S1 is covered around the outer perimeter of the annular attachment layer from step S5 using a spinning machine.
2. The method for preparing ring-gap flax core-spun yarn according to claim 1, characterized in that, The inner core layer is made of XLA elastic filament fiber.
3. The method for preparing ring-gap flax core-spun yarn according to claim 1, characterized in that, The annular adhesion layer comprises the following components: styrene-butadiene latex, surfactant, polyurethane, and breathable fiber powder; the weight parts of each component are: 10 to 20% styrene-butadiene latex, 5 to 8% surfactant, 2 to 5% polyurethane, and 10 to 15% breathable fiber powder.
4. The method for preparing ring-gap flax core-spun yarn according to claim 3, characterized in that, The weight parts of each component are: 45% styrene-butadiene latex, 6% surfactant, 4% polyurethane, and 14% breathable fiber powder.
5. The method for preparing ring-gap flax core-spun yarn according to claim 3, characterized in that, The surfactant is stearic acid or dodecyl phosphoric acid.
6. The method for preparing ring-gap flax core-spun yarn according to claim 3, characterized in that, The breathable fiber powder is bamboo fiber powder.
7. The method for preparing ring-gap flax core-spun yarn according to claim 1, characterized in that, The concentration of the styrene-butadiene latex solution in step S2 is 30%.
8. The method for preparing ring-gap flax core-spun yarn according to claim 1, characterized in that, The drying temperature in step S3 is 50 to 60°C.
9. The method for preparing ring-gap flax core-spun yarn according to claim 1, characterized in that, The drying temperature in step S4 is 100 to 120°C.