CN110820060A

CN110820060A - Special-shaped spinneret plate and manufacturing method thereof

Info

Publication number: CN110820060A
Application number: CN201911307024.0A
Authority: CN
Inventors: 全潇
Original assignee: Taicang Rongwen Synthetic Fibre Co Ltd
Current assignee: Taicang Rongwen Synthetic Fibre Co Ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-02-21

Abstract

The invention provides a profile spinneret plate, which comprises: a spinneret plate body; and a plurality of spinneret holes having different sectional shapes are provided along a plurality of concentric circles of the spinneret body. The invention also discloses a manufacturing method of the profiled spinneret plate. The profiled spinneret plate manufactured by the method has the advantages that the spinneret holes with different cross-sectional shapes are formed, so that when the spinneret plate is used for spinning, fibers sprayed from different spinneret holes have different curvatures and different spiral twisting directions, the hollow structure is formed in the fibers through the optimized arrangement mode of the spinneret holes, the hollowness reaches 15%, and a fluffier structure is formed among the fibers. Saves the cost and optimizes the production process.

Description

Special-shaped spinneret plate and manufacturing method thereof

Technical Field

The invention relates to the technical field of fabric fiber manufacturing, in particular to a profiled spinneret plate and a manufacturing method thereof.

Background

With the growing interest in elastic fibers, fibers having high elongation, strength, aging resistance, and other properties have become increasingly popular.

Composite fibers are made of two or more polymer materials with different shrinkage properties, such as viscosity, to form hollow fibers, which are a type of crimped elastic fibers made of polymers with different structures or properties by composite spinning.

Because the components in the fiber have different contractibility and initial modulus, when the composite fiber is spun and drawn, different contraction effects are generated due to different contraction stresses of the components after the composite fiber is heated, and the components are adhered together, so that the components have a coordination and control function during contraction, and the component with fast contraction generates contraction pressure on the component with slow contraction; conversely, the rapidly contracting component is subjected to a counter-stretching force by the slowly contracting component. When the acting force reaches the balance after being deformed to a certain degree along with contraction, the contraction force and the stretching force form a pair of force couples, and under the action of the force couples, the whole fiber spontaneously generates torsion to form the spirally curled fiber. The curled fiber has different degrees of elasticity and elasticity like a spring, so that the key point for obtaining spiral curling is that the two components have potential shrinkage stress difference, and the two-component curled elastic fiber has very similar curling elasticity to natural wool and endows the fiber with good elasticity.

However, in the spinning process, polymers with different components often have different viscosities, so that a 'corner bend' problem may be generated at a spinneret plate in the spinning process, and smooth spinning cannot be realized, or the components are cracked due to poor compatibility. The cross-sectional shapes of the different components of most composite fibers on the market are symmetrically distributed.

With the continuous development of production technology, how to reduce the production cost, improve the production efficiency and increase the diversity of fibers so as to realize various functional fibers becomes the most critical problem while meeting the requirements of people on elastic clothes.

Disclosure of Invention

The invention provides a special-shaped spinneret plate, and aims to realize hollow elastic fibers with good elasticity, heat preservation and ventilation effects no matter fibers produced by adopting double-component or same-component spinneret through spinneret holes with different cross-sectional shapes arranged on a spinneret plate body.

In order to achieve the technical purpose, the application discloses the following technical scheme:

according to the present invention, there is provided a profile spinneret:

comprises a spinneret plate body;

a plurality of orifices having different cross-sectional shapes are disposed along a plurality of concentric circles of the spinneret body.

According to one embodiment of the invention, the plurality of orifices comprises at least double C-shaped orifices and double Y-shaped orifices.

According to one embodiment of the invention, two adjacent orifices arranged along a plurality of concentric circles have different cross-sectional shapes.

According to one embodiment of the invention, the double C-shaped orifice consists of two C-shaped orifices with opposite opening parts.

According to one embodiment of the invention, the double-Y spinneret orifice consists of two Y-shaped spinneret orifices with opposite opening parts.

According to one embodiment of the invention, the two open opposing C-shaped apertures are proximate to each other but not connected.

According to one embodiment of the invention, the opposing openings of the two Y-shaped orifices with opposing openings are close to each other but not connected.

According to the present invention, there is also provided a method of manufacturing a profiled spinneret plate, comprising:

constructing a 3D model of the profiled spinneret plate;

and manufacturing the profile spinneret plate in a 3D printing mode.

The practical use proves that when the component is polyester which is easy to dye under normal pressure, the hollow elastic fiber has good elasticity and a hollow elastic structure similar to wool, and the fabric made of the fiber has smooth body feeling. When the components are respectively normal-pressure easy-dyeing polyester and common polyester, the elastic fiber has good elastic property, and the intrinsic viscosities of the two components are respectively 0.38-0.47 dl/g and 0.66-0.74 dl/g, the elastic fiber can obtain the best curling performance and elasticity, can realize large-scale production, can be widely used for spinning the same raw materials with different viscosities, and reduces the production cost.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a system schematic of an embodiment of a profile spinneret according to the present invention;

description of reference numerals:

1 spinneret plate body, 11 double C-shaped spinneret orifices and 12 double Y-shaped spinneret orifices.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

Referring to fig. 1, a schematic diagram of a profiled spinneret according to an embodiment of the present invention includes a spinneret body 1, and in this embodiment, the spinneret body 1 is circular. A plurality of orifices arranged along concentric circles of the spinneret body. In the embodiment, the spinneret plate comprises double C-shaped spinneret orifices 11 and double Y-shaped spinneret orifices 12.

As shown in fig. 1, the respective orifices are arranged along concentric circles, and each adjacent two orifices have different sectional shapes. In the present embodiment, the opening portions of the double C-shaped spinneret holes 11 are close to each other but not connected, and the opening portions of the double Y-shaped spinneret holes 12 are also close to each other but not connected. By the arrangement, the spun yarns with different viscosities sprayed from the two holes close to each other are closely bonded to each other, so that the spun yarns form a hollow structure. Such a hollow structure gives the fibers a texture and properties closer to cashmere.

Through two adjacent spinneret orifices have different cross sectional shape's the mode of setting, the silk that spouts of each spinneret orifice has different camber and torsion degree to the silk that spouts of spinneret orifice has different viscosities, has makeed to spout and has formed fluffy structure between the silk, when providing good body and feeling, also makes the fabric ventilative more, cold-proof and lightweight.

In the embodiment shown in fig. 1, which shows only an exemplary arrangement of a single row of orifices on a concentric circle, it will be understood by those skilled in the art that the arrangement described above can also be arranged in a plurality of rows.

The invention also discloses a manufacturing method of the spinneret plate, which comprises the following steps:

and modeling the spinneret plate in a 3D modeling tool.

The spinneret plate, which may be a polymer material, is then printed by a 3D printing device.

The profiled spinneret plate manufactured by the method has the advantages that the spinneret holes with different cross-sectional shapes are formed, so that when the spinneret plate is used for spinning, fibers sprayed from different spinneret holes have different viscosities, different curvatures and different spiral twisting directions, a hollow structure is formed in the fibers through an optimized arrangement mode of the spinneret holes, and the hollowness reaches 15%. And also creates an air-permeable lofty structure between the fibers. Saves the cost and optimizes the production process.

The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the present disclosure as defined by the appended claims. Although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the idea of an embodiment of the invention, also technical features in the above embodiment or in different embodiments may be combined and there are many other variations of the different aspects of an embodiment of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.

Claims

1. A profiled spinneret plate is characterized in that,

comprises a spinneret plate body;

2. The profile spinneret plate according to claim 1,

the plurality of spinneret orifices at least comprise double C-shaped spinneret orifices and double Y-shaped spinneret orifices.

3. The profile spinneret plate according to claim 2,

adjacent two orifices arranged along the plurality of concentric circles have different cross-sectional shapes.

4. The profile spinneret plate according to claim 2,

the double-C-shaped spinneret orifice consists of two C-shaped orifices with opposite opening parts.

5. The profile spinneret plate according to claim 2,

the double-Y-shaped spinneret orifice consists of two Y-shaped spinneret orifices with opposite opening parts.

6. The profile spinneret plate according to claim 4,

the two open-ended opposing C-shaped apertures are proximate to each other but not connected.

7. The profile spinneret plate according to claim 5,

the opposite openings of the two Y-shaped spinneret holes with opposite openings are close to each other but are not connected.

8. A method of manufacturing a profile spinneret according to any one of claims 1 to 7, wherein:

constructing a 3D model of the profiled spinneret plate;

and manufacturing the profile spinneret plate in a 3D printing mode.