A multifunctional fancy yarn

Abstract

The invention relates to a multifunctional fancy yarn, comprising a core yarn, a decorative yarn and a solid yarn, wherein the core yarn is a three-component blended yarn of antibacterial polyester / cotton / chitosan fiber with a yarn count of 60-80S, and the weight ratio of the antibacterial polyester fiber, the cotton fiber and the chitosan fiber in the blended yarn is (5-8):(85-90):(2-10); the decorative yarn is a meshed yarn formed by meshing an ultra-high molecular weight polyethylene FDY filament, a colored nylon FDY filament, a bamboo fiber FDY filament and a colored polyester POY filament on a meshing machine, and in the meshing process, the nozzle airflow of the meshing machine is used to act on the meshed yarn to form mesh points, and the density of the mesh points is 80-100 / m; the solid yarn is a flame-retardant nylon FDY filament and a temperature-variable polyester FDY filament, which are twisted and compounded by a double twisting machine. The yarn has good flame retardant performance, safe and efficient antibacterial effect, obvious cooling performance and strong interest.

Description

Technical Field

[0001] The invention belongs to the technical field of textiles, and in particular relates to a fancy yarn with multiple functions. Background Art

[0002] As people's living standards continue to improve, their pursuit of quality of life is getting higher and higher. Many comfortable fabrics that can bring new wearing experiences and colorful fabrics that can bring visual impacts are sought after by people. These fabrics are based on yarns with colorful effects and functionality.

[0003] Fancy yarn, also known as special yarn, refers to yarn with special structure and appearance effect obtained by processing fibers or yarns with special raw materials, special equipment or special technology during the spinning and thread making process. It is a kind of yarn with decorative effect in yarn products. The structure of fancy yarn usually consists of core yarn, decorative yarn and solid yarn. The core yarn bears strong force and is the main yarn; the decorative yarn is twisted and wrapped around the core yarn to form an effect; the solid yarn is twisted and wrapped around the outer periphery of the decorative yarn in the opposite direction to fix the pattern. The yarn formed in this way has a rich style.

[0004] Antibacterial function is a common function that textiles need to have. At present, there are generally two ways to achieve flame retardant and antibacterial properties of fabrics. One is to use functional additives to give fabrics functionality through printing and dyeing finishing, and the other is to use functional yarns to give fabrics functionality through weaving. The method of giving fabrics functionality through additive finishing technology is simple to operate, but the durability of the fabric function is insufficient. Therefore, for consumers with higher requirements, they are more inclined to functional fabrics made of functional yarns.

[0005] As the favorite of summer fabrics, cool and breathable fabrics have always been favored by consumers. The basis of cool fabrics is cool fiber. Traditional cool fiber generally achieves the cool effect by simply adding jade powder, mica powder, etc. during spinning, but this is equivalent to adding impurities to the yarn, which not only has no obvious effect, but also affects the yarn strength. Therefore, by combining cool yarn with excellent thermal conductivity and other fibers with high moisture absorption performance, a fabric with excellent cool effect is formed.

[0006] In summary, the market urgently needs a multifunctional yarn with rich colors, high-efficiency antibacterial and long-lasting cooling effects to upgrade traditional fabrics. Summary of the invention

[0007] The object of the present invention is to provide a multifunctional fancy yarn with flame retardant, antibacterial, cool, temperature-changing and colorful effects, which has good flame retardant performance, safe and efficient antibacterial effect, obvious cool performance and strong interest.

[0008] The technical solution adopted by the present invention is: a multifunctional fancy yarn, comprising:

[0009] Core yarn: antibacterial polyester / cotton / chitosan fiber three-component blended yarn with a yarn count of 60-80S, the weight ratio of the antibacterial polyester fiber, cotton fiber and chitosan fiber in the blended yarn is (5-8):(85-90):(2-10);

[0010] Decorative yarn: A mesh yarn formed by meshing one ultra-high molecular weight polyethylene FDY filament, one colored nylon FDY filament, one bamboo fiber FDY filament and one colored polyester POY filament on a mesh yarn machine. During the meshing process, the nozzle airflow of the mesh yarn machine is used to form mesh points on the mesh yarn. The density of the mesh points is 80 to 100 / m;

[0011] Solid yarn: It is made by twisting and compounding a flame-retardant nylon FDY filament and a temperature-sensitive polyester FDY filament through a two-for-one twisting machine;

[0012] The core yarn is made of antibacterial polyester and chitosan fiber, two fibers with antibacterial effects, blended with cotton fiber, thus ensuring that the yarn has good antibacterial properties; the decorative yarn is made of a super high molecular weight polyethylene FDY filament, a colored nylon FDY filament, a bamboo fiber FDY filament and a colored polyester POY filament, which are meshed on a meshing machine to form a meshed yarn, combining the ultra-high thermal conductivity of the super high molecular weight polyethylene filament, the hygroscopic thermal conductivity of the nylon filament, and the cool hygroscopic properties of the bamboo fiber, so that the yarn has a strong cool experience; the several filaments in the decorative yarn have different shrinkage rates, so that the decorative yarn has fine loops after abnormal shrinkage, and these loops of different colors make the yarn more colorful. The flame-retardant FDY filament and the temperature-variable polyester FDY filament in the solid yarn not only make the yarn flame-retardant, but also make the yarn more interesting.

[0013] Furthermore, the antibacterial polyester in the core yarn is formed by firmly loading the antibacterial agent OPHB onto the surface of the polyester fiber through supercritical technology to form a modified polyester fiber, and the content of the antibacterial agent OPHB in the antibacterial polyester is 1%; the antibacterial agent OPHB is a polyhydroxyalkanoate, which is polymerized by 45% by weight of polyhydroxybutyric acid and 50% by weight of polyhydroxyvaleric acid under the action of 5% by weight of catalytic enzyme;

[0014] The new polymer antibacterial agent OPHB belongs to polyhydroxyalkanoate, which is a type of PHA. This material was first discovered in cells and is synthesized by bacteria as a carbon source and energy substance in cells; therefore, it has good biocompatibility and good biodegradability. The antibacterial polyester fiber obtained by applying OPHB to polyester fiber using a supercritical method. In the antibacterial polyester fiber, OPHB adheres to the surface of the fiber and can better contact with bacteria, so that OPHB has a good antibacterial effect when applied in a very small amount; the OPHB structure has good affinity with bacteria and viruses, and can fully approach the cell wall, causing changes in the cell membrane potential, which in turn causes the cell membrane to rupture and the protein inside to overflow and denature, thereby killing bacteria and viruses. As an effective antibacterial ingredient, OPHB is not only safe, but also highly effective.

[0015] Furthermore, the preparation method of the flame retardant nylon FDY filament in the solid yarn is:

[0016] ① Wrap nylon FDY filaments on a steel pipe, with a number of micropores evenly distributed on the surface of the steel pipe, then immerse the steel pipe wrapped with nylon FDY filaments in CuSO4·5H2O, and bombard the solution with low-temperature plasma technology to promote the grafting of Cu ions in CuSO4·5H2O to the surface of nylon FDY to make nylon FDY filaments containing copper ions;

[0017] ② The nylon FDY filament containing copper ions prepared in step ① is dried and placed in a 40% hydrazine hydrate aqueous solution, and then 0.5 g / l of sodium hydroxide and 0.5 g / l of a refining agent are added to the hydrazine hydrate aqueous solution to prepare a mixed reaction solution; the nylon FDY filament containing copper ions is immersed in the mixed reaction solution for 20 minutes and then dried by a centrifuge, and then the dried nylon FDY filament is placed in a high-temperature reactor for reaction, and the reacted nylon FDY filament is washed, dried, and dried to prepare a flame-retardant nylon FDY;

[0018] Low-temperature plasma technology is used to promote the grafting of copper ions onto nylon FDY filaments, so that more copper ions are attached to the surface of nylon, so that the nylon FDY filaments containing copper ions react better with hydrazine hydrate, thereby improving the flame retardant properties of the fiber.

[0019] Furthermore, the preparation method of the temperature-variable polyester FDY filament in the solid yarn is:

[0020] ① Preparation of temperature-sensitive polyester masterbatch: first grind the temperature-sensitive powder particles into a particle size of D90 < 0.8 μm using a wet ball mill, add the temperature-sensitive powder into the polyester powder obtained by rapid cooling with liquid nitrogen, and finally use a double-screw mixing mechanism to produce a polyester temperature-sensitive masterbatch containing the temperature-sensitive powder.

[0021] ② Preparation of temperature-dependent polyester FDY filaments: The temperature-dependent polyester masterbatch prepared in step ① is uniformly mixed with ordinary polyester chips in a weight ratio of 3:97, dried and then melted by a screw extruder to obtain a spinning melt containing temperature-dependent powder, and the spinning melt passes through a metering pump and a spinneret to form a temperature-dependent polyester FDY filament;

[0022] Furthermore, in the decorative yarn, the fineness of the ultra-high molecular weight polyethylene FDY filament is 50D, the fineness of the colored nylon FDY filament is 30D, the fineness of the bamboo fiber FDY filament is 50D, and the fineness of the colored polyester POY filament is 50D.

[0023] Furthermore, the twist of the solid yarn is 5-8T / inch, and the twist direction is S twist.

[0024] Furthermore, after being twisted by a two-for-one twister, the solid yarn is dry-heat-set at 130-150° C. for 5-10 seconds.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] The multifunctional fancy yarn of the present invention has the following advantages:

[0027] (1) The core yarn is made of antibacterial polyester and chitosan fiber, two fibers with antibacterial effects, blended with cotton fiber, thus ensuring that the yarn has good antibacterial properties; the decorative yarn is made of a super high molecular weight polyethylene FDY filament, a colored nylon FDY filament, a bamboo fiber FDY filament and a colored polyester POY filament, which are meshed on a meshing machine to form a meshed yarn, combining the ultra-high thermal conductivity of the super high molecular weight polyethylene filament, the hygroscopic thermal conductivity of the nylon filament, and the cool hygroscopic properties of the bamboo fiber, so that the yarn has a strong cool experience; the several filaments in the decorative yarn have different shrinkage rates, so that the decorative yarn has fine loops after different shrinkage, and these loops of different colors make the yarn more colorful. The flame-retardant FDY filament and the temperature-variable polyester FDY filament in the solid yarn not only make the yarn flame-retardant, but also make the yarn more interesting.

[0028] (2) The new polymer antibacterial agent OPHB belongs to polyhydroxyalkanoate, which is a type of PHA. This material was first discovered in cells and is synthesized by bacteria as a carbon source and energy source in cells; therefore, it has good biocompatibility and good biodegradability. The antibacterial polyester fiber obtained by applying OPHB to polyester fiber using a supercritical method. In the antibacterial polyester fiber, OPHB adheres to the surface of the fiber and can better contact with bacteria, so that OPHB has a good antibacterial effect when applied in a very small amount; the OPHB structure has good affinity with bacteria and viruses, and can fully approach the cell wall, causing changes in the cell membrane potential, which in turn causes the cell membrane to rupture and the protein inside to overflow and denature, thereby killing bacteria and viruses. As an effective antibacterial ingredient, OPHB is not only safe but also highly effective.

[0029] (3) Low-temperature plasma technology is used to promote the grafting of copper ions onto nylon FDY filaments, so that more copper ions are attached to the surface of nylon, thereby enabling the nylon FDY filaments containing copper ions to react better with hydrazine hydrate, thereby improving the flame retardant properties of the fiber. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below with reference to the embodiments.

[0031] Embodiment 1:

[0032] A multifunctional fancy yarn, comprising:

[0033] Core yarn: antibacterial polyester / cotton / chitosan fiber three-component blended yarn with a yarn count of 80S, the weight ratio of antibacterial polyester fiber, cotton fiber and chitosan fiber in the blended yarn is 5:90:5; wherein, the antibacterial polyester is a modified polyester fiber formed by firmly loading the antibacterial agent OPHB onto the surface of the polyester fiber through supercritical technology, and the content of the antibacterial agent OPHB in the antibacterial polyester is 1%; the antibacterial agent OPHB is a polyhydroxyalkanoate, which is polymerized by 45% of polyhydroxybutyric acid and 50% of polyhydroxyvaleric acid under the action of 5% of catalytic enzyme in a weight ratio;

[0034] Decorative yarn: a mesh yarn formed by meshing a 50D ultra-high molecular weight polyethylene FDY filament, a 30D colored nylon FDY filament, a 50D bamboo fiber FDY filament and a 50D colored polyester POY filament on a meshing machine. During the meshing process, the nozzle airflow of the meshing machine is used to form mesh points on the meshing yarn. The density of the mesh points is 100 / m. The nozzle air pressure during meshing is 2.2Mpa.

[0035] Solid yarn: It is made by twisting a 50D flame-retardant nylon FDY filament and a 50D temperature-sensitive polyester FDY filament through a two-for-one twister; the twist of the solid yarn is 8T / inch and the twist direction is S twist; after twisting by the two-for-one twister, it is dry-heat-set at 150°C for 5 to 10 seconds.

[0036] Wherein, the preparation method of flame retardant nylon FDY filament is:

[0037] ① Wrap the nylon FDY filaments on the steel pipe, and evenly distribute a number of micropores on the surface of the steel pipe to ensure that the nylon FDY filaments on the steel pipe can be fully acted on; then immerse the steel pipe wrapped with nylon FDY filaments in CuSO4·5H2O, and bombard the solution with low-temperature plasma technology to promote the grafting of Cu ions in CuSO4·5H2O to the surface of nylon FDY to make nylon FDY filaments containing copper ions;

[0038] ② The nylon FDY filament containing copper ions prepared in step ① is dried and placed in a 40% hydrazine hydrate aqueous solution, and then 0.5 g / l of sodium hydroxide and 0.5 g / l of a refining agent are added to the hydrazine hydrate aqueous solution to prepare a mixed reaction solution; the nylon FDY filament containing copper ions is immersed in the mixed reaction solution for 20 minutes and then dried by a centrifuge, and then the dried nylon FDY filament is placed in a high-temperature reactor for reaction, and the reacted nylon FDY filament is washed, dried, and dried to prepare a flame-retardant nylon FDY;

[0039] The preparation method of temperature-variable polyester FDY filament is as follows:

[0040] ① Preparation of temperature-sensitive polyester masterbatch: first grind the temperature-sensitive powder particles into a particle size of D90 < 0.8 μm using a wet ball mill, add the temperature-sensitive powder into the polyester powder obtained by rapid cooling with liquid nitrogen, and finally use a double-screw mixing mechanism to produce a polyester temperature-sensitive masterbatch containing the temperature-sensitive powder.

[0041] ② Preparation of temperature-dependent polyester FDY filaments: The temperature-dependent polyester masterbatch prepared in step ① is uniformly mixed with ordinary polyester chips in a weight ratio of 3:97, dried and then melted by a screw extruder to obtain a spinning melt containing temperature-dependent powder, and the spinning melt passes through a metering pump and a spinneret to form a temperature-dependent polyester FDY filament;

[0042] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A multifunctional fancy yarn, characterized in that: include: Core yarn: antibacterial polyester / cotton / chitosan fiber three-component blended yarn with a yarn count of 60-80S, the weight ratio of antibacterial polyester fiber, cotton fiber and chitosan fiber in the blended yarn is (5-8): (85-90): (2-10); Decorative yarn: A mesh yarn formed by meshing one ultra-high molecular weight polyethylene FDY filament, one colored nylon FDY filament, one bamboo fiber FDY filament and one colored polyester POY filament on a mesh yarn machine. During the meshing process, the nozzle airflow of the mesh yarn machine is used to form mesh points on the mesh yarn. The density of the mesh points is 80 to 100 / m; Solid yarn: It is made by twisting and compounding a flame-retardant nylon FDY filament and a temperature-sensitive polyester FDY filament through a two-for-one twisting machine; The antibacterial polyester in the core yarn is a modified polyester fiber formed by firmly loading the antibacterial agent OPHB onto the surface of the polyester fiber through supercritical technology, and the content of the antibacterial agent OPHB in the antibacterial polyester is 1%; the antibacterial agent OPHB is a polyhydroxyalkanoate, which is polymerized by 45% by weight of polyhydroxybutyric acid and 50% by weight of polyhydroxyvaleric acid under the action of 5% by weight of catalytic enzyme; The preparation method of the temperature-variable polyester FDY filament in the solid yarn is: ① Preparation of temperature-sensitive polyester masterbatch: firstly grind the temperature-sensitive powder particles into a particle size of D90 < 0.8 μm using a wet ball mill, then add the temperature-sensitive powder into the polyester powder obtained by rapid cooling with liquid nitrogen, and finally use a double screw mixer to produce the temperature-sensitive polyester masterbatch containing the temperature-sensitive powder; ② Preparation of temperature-dependent polyester FDY filaments: The temperature-dependent polyester masterbatch prepared in step ① is uniformly mixed with ordinary polyester chips in a weight ratio of 3:97, dried and then melted by a screw extruder to obtain a spinning melt containing temperature-dependent powder, and the spinning melt passes through a metering pump and a spinneret to form temperature-dependent polyester FDY filaments.

2. A multifunctional fancy yarn according to claim 1, characterized in that: The preparation method of the flame-retardant nylon FDY filament in the solid yarn is: ① Wrap nylon FDY filaments on a steel pipe with a number of micropores evenly distributed on the surface of the steel pipe. Then, immerse the steel pipe wrapped with nylon FDY filaments in CuSO4•5H2O, and bombard the solution with low-temperature plasma technology to promote the grafting of Cu ions in CuSO4•5H2O to the surface of nylon FDY to make nylon FDY filaments containing copper ions. ② The nylon FDY filament containing copper ions prepared in step ① is dried and placed in a 40% hydrazine hydrate aqueous solution, and then 0.5 g / l of sodium hydroxide and 0.5 g / l of a refining agent are added to the hydrazine hydrate aqueous solution to prepare a mixed reaction solution; the nylon FDY filament containing copper ions is immersed in the mixed reaction solution for 20 minutes and then dried by a centrifuge, and then the dried nylon FDY filament is placed in a high-temperature reactor for reaction, and the reacted nylon FDY filament is washed, dried, and dried to prepare a flame-retardant nylon FDY.

3. A multifunctional fancy yarn according to claim 1, characterized in that: The fineness of the ultra-high molecular weight polyethylene FDY filament in the decorative yarn is 50D, the fineness of the colored nylon FDY filament is 30D, the fineness of the bamboo fiber FDY filament is 50D, and the fineness of the colored polyester POY filament is 50D.

4. The multifunctional fancy yarn according to claim 1, characterized in that: The twist of the solid yarn is 5-8T / inch, and the twist direction is S twist.

5. The multifunctional fancy yarn according to claim 1, characterized in that: After being twisted by a two-for-one twister, the solid yarn is dry-heat-set at 130-150° C. for 5-10 seconds.