CN216738650U - Moon-shaped hollow fiber spinneret plate - Google Patents
Moon-shaped hollow fiber spinneret plate Download PDFInfo
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- CN216738650U CN216738650U CN202120983636.8U CN202120983636U CN216738650U CN 216738650 U CN216738650 U CN 216738650U CN 202120983636 U CN202120983636 U CN 202120983636U CN 216738650 U CN216738650 U CN 216738650U
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Abstract
The utility model relates to a moon-shaped hollow fiber spinneret plate, which comprises a spinneret plate body, wherein a plurality of spinneret orifices are arranged in the spinneret plate body, each spinneret orifice comprises a feeding hole, a material passing channel, a reducing channel and a discharging hole which are sequentially communicated from top to bottom, the discharging hole of each spinneret orifice comprises a first L-shaped hole and a second L-shaped hole, the arrangement directions of all the first L-shaped holes are the same, and the arrangement directions of all the second L-shaped holes are the same; and two ends of the first L-shaped hole are respectively opposite to two ends of a second L-shaped hole in the same spinneret orifice. When the spinneret plate is adopted, cold air is matched for side blowing, and the blowing direction faces to the corner of one L-shaped hole, so that the polymer sprayed out of the L-shaped hole facing the wind is inwards concave at the corner of the L-shaped hole and is bonded with the polymer sprayed out of the L-shaped hole facing the wind, a hollow moon-shaped monofilament is formed, the monofilament is naturally curled, the animal wool-like fiber is formed, the animal wool-like fiber has better elastic curling performance, and the production cost is lower than that of a bicomponent fiber.
Description
Technical Field
The utility model relates to a chemical fiber production accessory technical field especially relates to moon type hollow fiber spinneret.
Background
The spinneret plate is a product commonly used in the textile chemical fiber industry, and comprises a feeding surface and a discharging surface, wherein the feeding surface is provided with a feeding hole, and the discharging surface is provided with a discharging hole. The spinneret plate is used for converting a viscous-state polymer melt or solution into a thin flow with a specific cross section through micropores, solidifying the thin flow through a solidification medium such as air or a solidification bath to form a filament, namely entering from a feeding hole and exiting through a discharging hole to form a fiber filament.
A discharge port of a common spinneret plate is circular, and as disclosed in chinese patent CN104451907A, the spinneret plate includes a spinneret plate body, the spinneret plate body is divided into a first spinneret domain located at the center, a second spinneret domain is located at the periphery of the first spinneret domain, a third spinneret domain is located at the periphery of the second spinneret domain, the first spinneret domain, the second spinneret domain and the third spinneret domain are distributed concentrically, and spinneret holes are respectively opened in the first spinneret domain, the second spinneret domain and the third spinneret domain. The non-circular spinneret plate is called as a profile spinneret plate, and the discharge holes of the existing profile spinneret plate are different in shape, such as a straight hole, a cross-shaped hole, a C-shaped hole and the like, so that fibers with different shapes can be produced.
Along with the improvement of the life quality of people, some clothes for placing animal hair are softer in touch sense due to the good elastic curling performance, and are warm-keeping when worn, so that the clothes are popular with people. At present, for the fiber with better elastic crimping performance, a two-component composite fiber is mostly adopted, for example, a two-component spinneret plate outer composite parallel self-crimping elastic short fiber production method disclosed in chinese patent CN106149071B, two high molecular polymer components a and B with different shrinkage characteristics are adopted as raw materials, an AB melt is compounded outside a double-channel spinneret plate to prepare an AB parallel composite filament bundle, then the AB parallel composite filament bundle is sequentially subjected to blowing cooling, oiling, winding traction and filament containing procedures to obtain an AB parallel composite fiber precursor, and finally the AB parallel composite fiber precursor is sequentially subjected to bundling balance, drafting, heat setting, oiling, crimping, relaxation drying and cutting to prepare the two-component parallel self-crimping elastic fiber.
Although the composite fiber has better elastic crimping performance, because two components of polymers are needed in the production process, two guide plates are needed to guide the two components of polymers to a spinneret plate, and the production cost is obviously higher than that of single-component fiber; monocomponent filaments do not have elastic crimping properties.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a moon type hollow fiber spinneret to solve current two ingredient cellosilk with high costs, monocomponent cellosilk does not possess the problem of the elasticity performance of curling again.
In order to achieve the purpose, the utility model provides a technical scheme does:
the utility model relates to a moon-shaped hollow fiber spinneret plate, which comprises a spinneret plate body, wherein a plurality of spinneret orifices are arranged in the spinneret plate body, each spinneret orifice comprises a feeding hole, a material passing channel, a reducing channel and a discharging hole which are sequentially communicated from top to bottom, the discharging hole of each spinneret orifice comprises a first L-shaped hole and a second L-shaped hole, the arrangement directions of all the first L-shaped holes are the same, and the arrangement directions of all the second L-shaped holes are the same; and two ends of the first L-shaped hole are respectively opposite to two ends of a second L-shaped hole in the same spinneret orifice.
Preferably, the distance between the opposite ends of the first L-shaped hole and the second L-shaped hole is 0.035-0.037 mm.
Preferably, the first L-shaped hole and the second L-shaped hole each include a long hole and a short hole, and an arc transition section exists between the long hole and the short hole.
Preferably, the length of the short hole is 0.45mm, the length of the long hole is 0.74mm, and the widths of the short hole and the long hole are both 0.09 mm.
Preferably, both ends of the first L-shaped hole and the second L-shaped hole are in arc structures.
Preferably, the spinneret plate body is of a stepped structure, and the spinneret plate body is provided with a positioning groove.
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
the discharge holes of the moon-shaped hollow fiber spinneret plate provided by the utility model all comprise first L-shaped holes and second L-shaped holes, the arrangement directions of all the first L-shaped holes are the same, and the arrangement directions of all the second L-shaped holes are the same; the two ends of the first L-shaped hole are opposite to the two ends of the second L-shaped hole in the same spinneret hole respectively, cold air is matched for side blowing in the spinneret process, the blowing direction faces to the corner of one L-shaped hole, therefore, the polymer sprayed out of the windward L-shaped hole is inwards concave at the corner of the L-shaped hole and is bonded with the polymer sprayed out of the leeward L-shaped hole to form a hollow moon-shaped monofilament, the polymer sprayed out of the windward L-shaped hole and the leeward L-shaped hole is naturally curled due to different cooling speeds, the fiber yarn imitating the animal hair is formed, the elastic curling performance is better, the production process of the fiber yarn is the same as that of single-component fiber yarn, and the production cost is lower than that of two-component fiber yarn.
Drawings
Fig. 1 is a plan view of a moon-type hollow fiber spinneret according to the present invention;
FIG. 2 is a vertical section (section A-A) at a single orifice of a moon-shaped hollow fiber spinneret;
FIG. 3 is a view showing the structure of a discharge hole;
fig. 4 is a cross-sectional view of a monofilament formed by a spinneret for a moon-type hollow fiber.
Description of the drawings: 1-spinneret plate body, 2-spinneret holes, 3-feeding holes, 4-material passing channels, 5-reducing channels, 6-discharging holes, 7-first L-shaped holes, 8-second L-shaped holes, 9-long holes, 10-short holes, 11-arc transition sections and 12-positioning grooves.
Detailed Description
For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.
Referring to the attached drawings 1 and 2, the utility model relates to a moon type hollow fiber spinneret, including spinneret body 1, be equipped with a plurality of spinneret orifices 2 in the spinneret body 1, spinneret orifice 2 includes feed port 3, punishment in advance passageway 4, reducing passageway 5 and discharge opening 6 that from the top down communicates in proper order. The spinneret plate body 1 is of a stepped structure, and the spinneret plate body 1 is provided with a positioning groove 12.
Referring to fig. 3, the discharge hole of each spinneret orifice comprises a first L-shaped hole 7 and a second L-shaped hole 8, the arrangement direction of all the first L-shaped holes 7 is the same, and the arrangement direction of all the second L-shaped holes 8 is the same; two ends of the first L-shaped hole 7 are respectively opposite to two ends of the second L-shaped hole 8 in the same spinneret orifice, and the distance between the opposite ends of the first L-shaped hole 7 and the second L-shaped hole 8 is 0.035-0.037 mm. First L type hole 7 and second L type hole 8 all include slot hole 9 and short hole 10, have the excessive section 11 of arc between slot hole 9 and the short hole 10, in this embodiment, the length of short hole 10 be 0.45mm, the length of slot hole 9 is 0.74mm, the width of short hole 9 and slot hole 10 is 0.09mm, the both ends of first L type hole 7 and second L type hole 8 all are the arc structure.
Referring to fig. 3, when the moon-type hollow fiber spinneret is used for spinning, the polymer is cooled by using a cross-blow, the blow direction is toward the positioning groove 12, and the blow direction is toward the corner of one of the L-shaped holes (in this embodiment, the blow direction is toward the first L-shaped hole 7), i.e., the polymer sprayed from the first L-shaped hole 7 is windward, and the polymer sprayed from the second L-shaped hole 8 is leeward. Thus, the polymer ejected from the first L-shaped hole 7 facing the wind is recessed inward at the corner of the first L-shaped hole 7, and is bonded with the polymer ejected from the second L-shaped hole 8 to form a hollow moon-shaped monofilament as shown in fig. 4, and the monofilament is naturally curled due to the difference in cooling rate between the polymer ejected from the first L-shaped hole 7 and the polymer ejected from the second L-shaped hole 8; under the action of side blowing separation, the monofilaments sprayed out from the spinneret orifices 2 are bonded together to form a single-component filament, and the final single-component filament is naturally curled due to the natural curling of the monofilaments, so that the filament has better elastic curling performance, forms the effect of imitating animal hair, has large hollowness and also has the performance of heat preservation and moisture absorption.
The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (6)
1. The utility model provides a moon type hollow fiber spinneret, includes the spinneret body, this internal a plurality of spinneret orifices that are equipped with of spinneret, the spinneret orifice includes feed port, punishment in advance passageway, reducing passageway and the discharge opening that from the top down communicates in proper order, its characterized in that: the discharge hole of each spinneret orifice comprises a first L-shaped hole and a second L-shaped hole, the arrangement directions of all the first L-shaped holes are the same, and the arrangement directions of all the second L-shaped holes are the same; and two ends of the first L-shaped hole are respectively opposite to two ends of a second L-shaped hole in the same spinneret orifice.
2. The moon-type hollow fiber spinneret plate according to claim 1, wherein: the distance between the opposite ends of the first L-shaped hole and the second L-shaped hole is 0.035-0.037 mm.
3. The moon-type hollow fiber spinneret plate according to claim 1, wherein: the first L-shaped hole and the second L-shaped hole respectively comprise a long hole and a short hole, and an arc transition section exists between the long hole and the short hole.
4. The moon-type hollow fiber spinneret plate according to claim 3, wherein: the length of the short hole is 0.45mm, the length of the long hole is 0.74mm, and the widths of the short hole and the long hole are both 0.09 mm.
5. The moon-type hollow fiber spinneret plate according to claim 1, wherein: and both ends of the first L-shaped hole and the second L-shaped hole are of arc structures.
6. The moon-type hollow fiber spinneret plate according to claim 1, wherein: the spinneret plate body is of a stepped structure, and the spinneret plate body is provided with a positioning groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120983636.8U CN216738650U (en) | 2021-05-10 | 2021-05-10 | Moon-shaped hollow fiber spinneret plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120983636.8U CN216738650U (en) | 2021-05-10 | 2021-05-10 | Moon-shaped hollow fiber spinneret plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216738650U true CN216738650U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120983636.8U Active CN216738650U (en) | 2021-05-10 | 2021-05-10 | Moon-shaped hollow fiber spinneret plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216738650U (en) |
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2021
- 2021-05-10 CN CN202120983636.8U patent/CN216738650U/en active Active
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