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Side by side composite fiber spinneret plate, method of preparing three-dimensional crimp antibacterial fiber with spinneret plate and application of three-dimensional crimp antibacterial fiber

A composite fiber, three-dimensional crimping technology, applied in the direction of fiber processing, conjugated synthetic polymer rayon, filament/thread forming, etc., can solve the loss of crimping characteristics and elasticity, loss of antibacterial effect, and the inability of three-dimensional crimped fibers to remain permanent The three-dimensional curling effect of deformation and other problems can achieve good elasticity and good ventilation.

Active Publication Date: 2015-07-15
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first method uses mechanical physics or mechanics to make the fiber curl. Due to the viscoelastic properties of the polymer in the chemical fiber, after a certain period of time, the three-dimensional curled fiber gradually creeps and restores the original appearance of the macromolecular chain. Slowly lose the crimp properties and elasticity, so the three-dimensional crimped fibers prepared by this method cannot maintain the three-dimensional crimp effect of permanent deformation
The second method is to design asymmetric spinneret holes and adopt asymmetric cooling. Although it can save money, it has high requirements for spinneret structure, spinning technology and equipment. Success in yarn, polyester staple and filament
The three-dimensional curly fiber has good elasticity and soft feel, and can be widely used in various fabrics. However, the fibers prepared in the above patents are short fibers, which limits the scope of application. As people's requirements for fiber and fabric comfort increase, The demand for breathable and sweat-wicking fabrics is increasing day by day, and the development of elastic, soft, breathable, and sweat-wicking filament fibers will have huge market potential
In the past two decades, there have been many researches on inorganic antibacterial agents, focusing on copper, silver and zinc metal elements and their oxides. Silver-based antibacterial materials have been widely used, but because they are easy to oxidize and lose Antibacterial effect, therefore, silver-based antibacterial fibers are not washable, and how to develop antibacterial fibers with permanent antibacterial effects is the mission of the current textile industry

Method used

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  • Side by side composite fiber spinneret plate, method of preparing three-dimensional crimp antibacterial fiber with spinneret plate and application of three-dimensional crimp antibacterial fiber
  • Side by side composite fiber spinneret plate, method of preparing three-dimensional crimp antibacterial fiber with spinneret plate and application of three-dimensional crimp antibacterial fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Raw material specifications: Component A is low melting point PET chips, its intrinsic viscosity: 0.450-0.550dL / g, component B is commercially available conventional PET, intrinsic viscosity: 0.580-0.680dL / g; Component C: cuprous oxide , particle size 40 ~ 100 nanometers.

[0028] The composite mass percentage ratio of component A, component B and component C of the side-by-side three-dimensional crimped antibacterial fiber is 60:39:1, and the fineness of a single fiber is between 1.11dtex and 12.00dtex.

[0029] The side-by-side three-dimensional crimped antibacterial fiber is prepared by using the following side-by-side composite spinnerets: as attached figure 1 with 2 As shown: the plate surface 1 of the spinneret is rectangular or circular, with 72 spinneret holes distributed on it, and the shape of each spinneret hole is as shown in the attached figure 2 Shown: Each spinneret hole consists of two equilateral "trilobal" A and equilateral "trilobal" B (as attached...

Embodiment 2

[0047] Specifications of raw materials: Component A is low melting point PET chip, its intrinsic viscosity: 0.450-0.550dL / g; component B is conventional PBT, intrinsic viscosity: 0.750-0.850dL / g; component C: cuprous oxide, granular 40-100 nanometers in diameter.

[0048] The composite mass percentage of component A, component B and component C of the side-by-side three-dimensional crimped antibacterial fiber is 65:33:2, and the fineness of a single fiber is between 1.11dtex and 18.00dtex.

[0049] Side-by-side spinnerets: the structure is as described in embodiment 1, wherein the length of the small rectangular spinneret hole 2 in the equilateral "trilobe" A is 1.2 millimeters, the width is 0.8 millimeters, and the hole depth is 0.8 millimeters; equilateral " The length of each small rectangular spinneret hole 3 in the trefoil type "B is 0.7 millimeters, the width is 0.4 millimeters, and the hole depth is 0.50 millimeters. Others are the same as embodiment 1. Production proc...

Embodiment 3

[0065] Raw material specifications: Component A is low melting point PET chips, its intrinsic viscosity: 0.450-0.550dL / g; component B is conventional PTT, intrinsic viscosity: 0.800-0.900dL / g; component C: cuprous oxide, granular 40-100 nanometers in diameter.

[0066] The composite mass percentage of component A, component B and component C of the side-by-side three-dimensional crimped antibacterial fiber is 65:33:2, and the fineness of a single fiber is between 1.11dtex and 8.50dtex.

[0067] Side-by-side spinnerets: the structure is as described in Example 1, wherein the length of the small rectangular spinneret holes 2 in the equilateral "trilobe" A is 1.5 millimeters, the width is 0.6 millimeters, and the hole depth is 0.8 millimeters; equilateral " The length of each small rectangular spinneret hole 3 in the three-lobe type "B is 0.9 millimeters, and the width is 0.4 millimeters, and the hole depth is 0.6 millimeters, and others are the same as embodiment 1.

[0068] Pr...

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Abstract

The invention relates to a side by side composite fiber spinneret plate, a method of preparing a three-dimensional crimp antibacterial fiber filament, and an application of the three-dimensional crimp antibacterial fiber filament. The method comprises the steps that the side by side composite fiber spinneret plate is used; every two groups of rectangular spinneret orifices in unequal dimensions at 120 degrees form every equilateral three-blade A and B; an ingredient A and an ingredient B with different thermal shrinkage rates are selected; an antimicrobial agent ingredient C is added into the ingredient A; the ingredient A and the ingredient C are subjected to melt extrusion by two twin screws, enter a parallel composite component and the spinneret plate after metered, and are subjected to parallel composite distribution, cross air blow, low-temperature shock cooling, oiling and winding to form a winding yarn; and the winding yarn is subjected to drawing, false twisting and thermoforming to form a DTY (Draw Textured Yarn) or subjected to the drawing and thermoforming to form the DTY. A three-dimensional crimp antibacterial fiber prepared by the method is soft and elastic, has the characteristics of good breathability, wicking, quick drying, antibacterium and the like since various grooves are formed in the cross section, and is applied to the development of shell fabrics of undergarments, sports suits, socks, bedclothes and the like and medical dressings.

Description

technical field [0001] The invention relates to the technical field of preparation and application of three-dimensional crimped antibacterial fiber filaments, in particular to special-shaped juxtaposed composite fiber spinnerets and a method for preparing three-dimensional crimped antibacterial fibers with controllable crimp rate through the same and corresponding spinning technology, and the fiber application. Background technique [0002] Fiber self-crimping is due to the axial shrinkage or uneven expansion of the fiber, forming a helical bending structure, which endows the fiber with curly, soft and elastic properties. It is widely used as filling material for high-grade pillows, sofas, and down jackets, and can also be used to prepare high-grade Toys can also be used as high-grade textile fabrics, etc. At present, there are many ways to prepare single-component fibers and multi-component fibers with a three-dimensional crimped structure, which can be classified into thr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/253D01D5/22D01D5/32D01F8/14D01F8/12D01F1/10
Inventor 颜志勇胡英叶洪福赵岗华王立岗沈小军王尚东
Owner JIAXING UNIV
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