Yarn with high inorganic particle content and preparation method thereof

Abstract

The invention discloses a yarn with high inorganic particle content. The yarn comprises a first area formed by a plurality of components A and a second area which surrounds the first area and is formed by a component B, the component A and the component B are respectively organic polymer materials, and inorganic particles are also wrapped in the region I; and the content of the inorganic particles accounts for 10-25% of the mass of the whole yarn. The inorganic particles are wrapped by the component A, then the component B and the component A wrapping the nano particles are co-extruded, the inorganic particles are intensively wrapped in the component A, and in the final melt extrusion process, spinning difficulty caused by too much adding amount of the inorganic particles can be avoided, the content of the inorganic particles in the yarn can be increased, and therefore the spinning quality is improved. The excellent functionality of the yarn is expanded, and more diversified market requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of yarns, and in particular to a yarn with a high inorganic particle content and a preparation method thereof. Background Art

[0002] Spinning, also known as chemical fiber forming, is a process of manufacturing chemical fibers. It is a process of making certain polymer compounds into colloidal solutions or melting them into melts, and then extruding them from the fine holes of a spinneret to form chemical fibers. In order to obtain functional fibers or yarns, functional inorganic particles are generally added to give the fibers or yarns specific functionality and good physical and chemical stability, such as UV shielding, antibacterial and antifouling, and self-cleaning functions. In existing spinning technologies, the amount of inorganic particles added is limited. If too much is added, it will lead to greater spinning problems. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a yarn with a high inorganic particle content and a preparation method thereof; the preparation method obtains a fiber yarn with a high inorganic particle content, wherein the inorganic particle content accounts for 10-25% of the total yarn mass, which can expand the excellent functionality of the yarn and meet more diversified market demands.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] A yarn with a high content of inorganic particles, comprising a region 1 formed by a plurality of components A and a region 2 formed by a component B surrounding the plurality of regions 1; the components A and B are respectively organic polymer materials, and the region 1 is also wrapped with inorganic particles; the content of the inorganic particles accounts for 10-25% of the mass of the entire yarn.

[0006] Furthermore, the component A is a polyester material or a polyamide material, and the component B is a soluble low-temperature polyester material.

[0007] Furthermore, the inorganic particles are at least one of titanium dioxide, silicon dioxide, zinc oxide and silver oxide.

[0008] Furthermore, the mass ratio of region 1 to region 2 is (70-85)%:(15-30)%.

[0009] The present invention further provides a method for preparing yarn with a high inorganic particle content, characterized in that it comprises the following steps:

[0010] Step (1), feeding the slices of component A and component B into a pipeline through a feeding system;

[0011] Step (2), pre-crystallizing the two component raw materials separately;

[0012] Step (3), sending the pre-crystallized raw material into a drying tower for drying to remove moisture;

[0013] Step (4), drying the master batch slices containing inorganic particles, adding them into the pipeline corresponding to component A according to the addition ratio, and mixing them evenly with component A;

[0014] Step (5), feeding the B component raw material and the A component raw material containing inorganic particles into screw extruders respectively, extruding quantitative components according to specifications through respective metering pumps after being melted by extrusion at different temperatures;

[0015] Step (6), the extruded components are sprayed out from different spinneret holes in the spinneret assembly and then merged, cooled and shaped by side blowing to form yarns, which are then oiled and wound into tubes.

[0016] Furthermore, in the above method, the slices of component A are high melting point slices, and the slices of component B are low melting point water-soluble slices.

[0017] Furthermore, in the above method, the pre-crystallization temperature of component A is 165±5°C, and the pre-crystallization temperature of component B is 115±5°C.

[0018] Furthermore, in step (4), the ratio of the masterbatch slices containing inorganic particles to the sum of the mass of the A component slices and the B component slices in step (1) is 15-30%.

[0019] Furthermore, the total wind pressure of the side blowing in step (6) is 550±5Pa.

[0020] Furthermore, the yarn obtained in step (6) is subjected to a texturing treatment.

[0021] Beneficial effects of the present invention:

[0022] The present invention utilizes component A to wrap inorganic particles, and then extrude component B and component A wrapping nanoparticles together. The inorganic particles are concentrated in component A. In the final melt extrusion process, the spinning difficulties caused by excessive addition of inorganic particles can be avoided, and the content of inorganic particles in the yarn can be increased, thereby expanding the excellent functionality of the yarn and meeting more diversified market demands. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a cross-sectional view of a yarn with a high inorganic particle content according to the present invention. DETAILED DESCRIPTION

[0024] The technical solutions in the present invention will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1 As shown, the present invention provides a yarn with a high inorganic particle content, including a region one formed by a plurality of components A and a region two formed by a component B surrounding the plurality of regions one; the components A and B are respectively organic polymer materials, and the region one is also wrapped with inorganic particles; the content of the inorganic particles accounts for 10-25% of the mass of the entire yarn.

[0026] Wherein, the component A is a polyester material or a polyamide material, and the component B is a soluble low-temperature polyester material.

[0027] The inorganic particles are selected from at least one of titanium dioxide, silicon dioxide, zinc oxide and silver oxide.

[0028] The mass ratio of region 1 to region 2 is (70-85)%:(15-30)%.

[0029] The method for preparing the yarn with a high inorganic particle content comprises the following steps:

[0030] Step (1), feeding component A slices and component B slices into a pipeline through a feeding system; the component A slices are high melting point slices, and the component B slices are low melting point water-soluble slices;

[0031] Step (2), pre-crystallizing the two component raw materials respectively; the pre-crystallization temperature of component A is 165° C., and the pre-crystallization temperature of component B is 115° C.;

[0032] Step (3), sending the pre-crystallized raw material into a drying tower for drying to remove moisture;

[0033] Step (4), drying the masterbatch slices containing inorganic particles, and adding them into the pipeline corresponding to component A according to the addition ratio to mix them evenly with component A; the masterbatch slices containing inorganic particles are prepared by adding inorganic particles during the polymerization process of the polymer, and the polymer can be a polymer material of component A; the ratio of the masterbatch slices containing inorganic particles to the sum of the mass of the component A slices and the component B slices in step (1) is 15-30%;

[0034] Step (5), feeding the B component raw material and the A component raw material containing inorganic particles into screw extruders respectively, extruding quantitative components according to specifications through respective metering pumps after being melted by extrusion at different temperatures;

[0035] In step (6), the extruded components are sprayed out from different spinneret holes in the spinneret assembly and then merged, cooled and shaped by side blowing to form yarn, which is then oiled and wound into a tube; the total wind pressure of the side blowing in step (6) is 550±5Pa; the yarn obtained in step (6) is also subjected to a texturing treatment to be made into a yarn that can be processed and manufactured.

[0036] Example 1

[0037] The yarn with high inorganic particle content in Example 1 includes region 1 formed by several components A and region 2 formed by component B surrounding the several regions 1; the component A is a polyester material, and the component B is a soluble low-temperature polyester material; inorganic particles are also wrapped in the region 1; the content of the inorganic particles accounts for 10% of the total yarn mass.

[0038] In this embodiment, the inorganic particles are titanium dioxide.

[0039] The mass ratio of area 1 to area 2 is 70%:30%.

[0040] The method for preparing the yarn with a high inorganic particle content comprises the following steps:

[0041] Step (1), feeding component A slices and component B slices into a pipeline through a feeding system; the component A slices are high melting point slices, and the component B slices are low melting point water-soluble slices;

[0042] Step (2), pre-crystallizing the two component raw materials respectively; the pre-crystallization temperature of component A is 165° C., and the pre-crystallization temperature of component B is 115° C.;

[0043] Step (3), sending the pre-crystallized raw material into a drying tower for drying to remove moisture;

[0044] Step (4), drying the polyester masterbatch chips containing inorganic particles, adding them into the pipeline corresponding to component A according to the addition ratio, and mixing them evenly with component A;

[0045] Step (5), feeding the B component raw material and the A component raw material containing inorganic particles into screw extruders respectively, extruding quantitative components according to specifications through respective metering pumps after being melted by extrusion at different temperatures;

[0046] In step (6), the extruded components are sprayed out from different spinneret holes in the spinneret assembly and then merged, cooled and shaped by side blowing to form yarn, which is then oiled and wound into a tube; the total wind pressure of the side blowing in step (6) is 550±5Pa; the yarn obtained in step (6) is also subjected to a texturing treatment to be made into a yarn that can be processed and manufactured.

[0047] Example 2

[0048] The yarn with high inorganic particle content in Example 2 includes region 1 formed by several components A and region 2 formed by component B surrounding the several regions 1; the component A is a polyester material, and the component B is a soluble low-temperature polyester material; inorganic particles are also wrapped in the region 1; the content of the inorganic particles accounts for 15% of the total yarn mass.

[0049] In this embodiment, the inorganic particles are titanium dioxide.

[0050] The mass ratio of area 1 to area 2 is 70%:30%.

[0051] The preparation method of the yarn with high inorganic particle content in Example 2 is the same as that in Example 1.

[0052] Example 3

[0053] The yarn with high inorganic particle content of Example 3 includes region 1 formed by several components A and region 2 formed by component B surrounding the several regions 1; the component A is a polyester material, and the component B is a soluble low-temperature polyester material; inorganic particles are also wrapped in the region 1; the content of the inorganic particles accounts for 25% of the total yarn mass.

[0054] In this embodiment, the inorganic particles are titanium dioxide.

[0055] The mass ratio of area 1 to area 2 is 70%:30%.

[0056] The preparation method of the yarn with high inorganic particle content in Example 3 is the same as that in Example 1.

[0057] Example 4

[0058] The yarn with high inorganic particle content of Example 4 includes region 1 formed by several components A and region 2 formed by component B surrounding the several regions 1; the component A is a polyester material, and the component B is a soluble low-temperature polyester material; inorganic particles are also wrapped in the region 1; the content of the inorganic particles accounts for 15% of the total yarn mass.

[0059] In this embodiment, the inorganic particles are titanium dioxide.

[0060] The mass ratio of area 1 to area 2 is 85%:15%.

[0061] The preparation method of the yarn with high inorganic particle content in Example 4 is the same as that in Example 1.

[0062] Example 5

[0063] The yarn with high inorganic particle content of Example 5 includes region 1 formed by several components A and region 2 formed by component B surrounding the several regions 1; the component A is a polyester material, and the component B is a soluble low-temperature polyester material; inorganic particles are also wrapped in the region 1; the content of the inorganic particles accounts for 25% of the total yarn mass.

[0064] In this embodiment, the inorganic particles are titanium dioxide.

[0065] The mass ratio of area 1 to area 2 is 85%:15%.

[0066] The preparation method of the yarn with high inorganic particle content in Example 5 is the same as that in Example 1.

[0067] The yarns of Examples 1-5 have excellent shielding properties and can be widely used in situations where ultraviolet rays, infrared rays or other electromagnetic waves need to be shielded, such as sun-proof clothing, outdoor tents, car sunshades, etc.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0069] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A yarn with a high inorganic particle content, characterized in that: The yarn comprises a region 1 formed by a plurality of components A and a region 2 formed by components B surrounding the plurality of regions 1; the components A and B are respectively organic polymer materials, and the region 1 is also wrapped with inorganic particles; the content of the inorganic particles accounts for 10-25% of the mass of the entire yarn.

2. The yarn with high inorganic particle content according to claim 1, characterized in that: The component A is a polyester material or a polyamide material, and the component B is a soluble low-temperature polyester material.

3. The yarn with high inorganic particle content according to claim 1, characterized in that: The inorganic particles are at least one of titanium dioxide, silicon dioxide, zinc oxide and silver oxide.

4. The yarn with high inorganic particle content according to claim 1, characterized in that: The mass ratio of region 1 to region 2 is (70-85)%:(15-30)%.

5. A method for preparing yarn with high inorganic particle content, characterized in that: The steps include: Step (1), feeding the slices of component A and component B into a pipeline through a feeding system; Step (2), pre-crystallizing the two component raw materials separately; Step (3), sending the pre-crystallized raw material into a drying tower for drying to remove moisture; Step (4), drying the master batch slices containing inorganic particles, adding them into the pipeline corresponding to component A according to the addition ratio and mixing them evenly; Step (5), feeding the B component raw material and the A component raw material containing inorganic particles into screw extruders respectively, extruding quantitative components according to specifications through respective metering pumps after being melted by extrusion at different temperatures; Step (6), the extruded components are sprayed out from different spinneret holes in the spinneret assembly and then merged, cooled and shaped by side blowing to form yarns, which are then oiled and wound into tubes.

6. The method for preparing a yarn with a high inorganic particle content according to claim 5, characterized in that: The A component slices are high melting point slices, and the B component slices are low melting point water-soluble slices.

7. The method for preparing a yarn with a high inorganic particle content according to claim 5, characterized in that: The pre-crystallization temperature of component A is 165±5°C, and the pre-crystallization temperature of component B is 115±5°C.

8. The method for preparing a yarn with a high inorganic particle content according to claim 5, characterized in that: In step (4), the ratio of the master batch slices containing inorganic particles to the sum of the mass of the A component slices and the B component slices in step (1) is 15-30%.

9. The method for preparing a yarn with a high inorganic particle content according to claim 5, characterized in that: The total wind pressure of the side blowing in step (6) is 550±5Pa.

10. The method for preparing a yarn with a high inorganic particle content according to claim 5, characterized in that: The yarn obtained in step (6) is subjected to a texturing treatment.

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