CN111074377A - Eccentric sheath-core colored fiber, and preparation method and preparation device thereof - Google Patents
Eccentric sheath-core colored fiber, and preparation method and preparation device thereof Download PDFInfo
- Publication number
- CN111074377A CN111074377A CN201911340148.9A CN201911340148A CN111074377A CN 111074377 A CN111074377 A CN 111074377A CN 201911340148 A CN201911340148 A CN 201911340148A CN 111074377 A CN111074377 A CN 111074377A
- Authority
- CN
- China
- Prior art keywords
- core
- spinneret orifice
- spinneret
- layer
- eccentric sheath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/04—Pigments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Multicomponent Fibers (AREA)
Abstract
Discloses eccentric sheath-core colored fibers, a preparation method and a preparation device thereof, belonging to the technical field of chemical fibers. The colored fiber comprises a skin layer and a core layer, wherein the skin layer is coated on the periphery of the core layer, and the core layer deviates from the geometric center of the skin layer when the cross section of the eccentric skin-core colored fiber is observed; the colors of the core layer and the skin layer are different. The method includes preparing a core layer melt containing a first colorant and a skin layer melt containing a second colorant; selecting a spinneret plate comprising a first spinneret orifice and a second spinneret orifice; under the set temperature condition, the core layer melt flows through the first spinneret orifice, and the skin layer melt flows through the core layer melt, so that a first intermediate product is formed at the outlet of the first spinneret orifice and the outlet of the second spinneret orifice; after post-treatment, the filament or short fiber of the eccentric sheath-core colored fiber is obtained. The device comprises the spinneret plate. The eccentric sheath-core colored fiber prepared by the preparation method and the preparation device can enable the core layer to be eccentrically distributed in the sheath layer.
Description
Technical Field
The invention relates to the technical field of chemical fibers, in particular to an eccentric sheath-core colored fiber, a preparation method and a preparation device thereof.
Background
In the prior art, except for fibers with colors of a few polymers such as para-aramid, polyphenylene sulfide and the like, most of colored fibers are fibers obtained by adding color pigments such as color master batches, color oil and the like in a spinning process and then spinning, and are generally called stock solution colored fibers. Generally, the method for realizing the multicolor color mixing effect on one yarn is to use various fibers with different colors for blending or doubling, wherein short fibers are mainly blended, and various color mixing modes such as fiber mixing, strip mixing and the like exist, and filaments are mainly produced by doubling twisting or elasticizing, so that the final textile product can show the color mixing effect with rich color levels. However, such colored fibers generally have the characteristic of a single coloring effect.
Disclosure of Invention
In view of the above, the present invention provides an eccentric sheath-core colored fiber, a preparation method and a preparation device thereof, and the eccentric sheath-core colored fiber prepared by the preparation method and the preparation device can eccentrically distribute a core layer in a sheath layer, so that the colored fiber has different colors when observed from different angles, and presents a richer color mixing effect, thereby being more practical.
In order to achieve the first object, the technical scheme of the eccentric sheath-core colored fiber provided by the invention is as follows:
the eccentric sheath-core colored fiber provided by the invention comprises a sheath layer and a core layer, wherein the sheath layer is coated on the periphery of the core layer,
viewed in cross-section of the eccentric sheath-core colored fiber, the core layer is offset from the geometric center of the sheath layer;
the colors of the core layer and the skin layer are different.
The eccentric sheath-core colored fiber provided by the invention can be further realized by adopting the following technical measures.
As a preference, the first and second liquid crystal compositions are,
the polymer adopted by the skin layer is selected from one of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polypropylene, polycaprolactam, polyhexamethylene adipamide, polylactic acid, and polymerization modified polyethylene terephthalate added with any one of isophthalic acid-5-sodium sulfonate or polyethylene glycol, phthalic anhydride, isophthalic acid, adipic acid and sebacic acid;
the polymer adopted by the core layer is selected from one of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polypropylene, polycaprolactam, polyhexamethylene adipamide, polylactic acid, and polymerization modified polyethylene terephthalate added with any one of isophthalic acid-5-sodium sulfonate or polyethylene glycol, phthalic anhydride, isophthalic acid, adipic acid and sebacic acid.
As a preference, the first and second liquid crystal compositions are,
the radial section of the core layer is circular;
the shape of the radial section of the skin layer is selected from one of a circle, a triangle and a straight line.
As a preference, the first and second liquid crystal compositions are,
the area of the radial section of the core layer accounts for 5-95% of the area of the radial section of the skin layer.
In order to achieve the second object, the technical scheme of the preparation method of the eccentric sheath-core colored fiber provided by the invention is as follows:
the preparation method of the eccentric sheath-core colored fiber provided by the invention comprises the following steps:
preparing a core layer melt containing a first colorant;
preparing a skin melt containing a second colorant;
selecting a spinneret plate comprising a first spinneret orifice and a second spinneret orifice, wherein the aperture of the first spinneret orifice is smaller than that of the second spinneret orifice, and the first spinneret orifice is arranged by deviating from the geometric center of the second spinneret orifice;
under the set temperature condition, the core layer melt flows through the first spinneret orifice, and the skin layer melt flows through the core layer melt, so that a first intermediate product is formed at an outlet of the first spinneret orifice and an outlet of the second spinneret orifice;
after the first intermediate product is subjected to post-treatment, filaments or short fibers of the eccentric sheath-core colored fibers are obtained;
wherein the first colorant is a different color than the second colorant.
The preparation method of the eccentric sheath-core colored fiber provided by the invention can be further realized by adopting the following technical measures.
As a preference, the first and second liquid crystal compositions are,
the post-treatment comprises the steps of cooling, drafting and winding in sequence, and the eccentric sheath-core colored fiber is an eccentric sheath-core colored fiber filament.
As a preference, the first and second liquid crystal compositions are,
the post-treatment comprises the steps of cooling, drafting, curling and cutting in sequence, and the eccentric sheath-core colored fiber is eccentric sheath-core colored fiber short fiber.
As a preference, the first and second liquid crystal compositions are,
the first spinneret orifice is circular;
the shape of the second spinneret orifice is selected from one of a circle, a triangle and a straight line.
As a preference, the first and second liquid crystal compositions are,
the area of the radial cross section of the first spinneret orifice accounts for 5-95% of the area of the radial cross section of the second spinneret orifice.
In order to achieve the third object, the technical solution of the apparatus for preparing eccentric sheath-core colored fiber provided by the present invention is as follows:
the device for preparing the eccentric sheath-core colored fiber comprises a spinneret plate,
the spinneret plate is provided with a first spinneret orifice and a second spinneret orifice, wherein the aperture of the first spinneret orifice is smaller than that of the second spinneret orifice, and the first spinneret orifice is arranged by deviating from the geometric center of the second spinneret orifice.
The preparation device of the eccentric sheath-core colored fiber provided by the invention can be further realized by adopting the following technical measures.
Preferably, the area of the radial cross section of the first spinneret orifice accounts for 5% -95% of the area of the radial cross section of the second spinneret orifice.
Preferably, the spinneret plate comprises a spinneret plate body, a bearing disc and a drainage column,
a through hole is formed in the center of the bearing disc;
the diameter of the drainage column is the same as that of the through hole, and the drainage column is fixedly connected with the edge of the through hole through the upper edge of the drainage column;
the lower edge of the guide post is immersed below the upper surface of the spinneret plate body, so that the lower edge of the guide post forms the first spinneret orifice;
the bearing disc is arranged higher than the upper surface of the spinneret plate body.
The eccentric colored fiber, the preparation method and the preparation device thereof provided by the invention adopt an eccentric sheath-core structure to carry out composite spinning by two different color components to obtain the colored fiber, the colors observed from different angles of the fiber are different due to the transparency of the polymer and the superposition effect of the colors, and in a final textile product, the final product presents a color mixing effect due to the randomness of the twisting angle of the fiber, thereby enriching the types of dope-colored fiber products. Compared with a product processed by blending or doubling two kinds of fibers with different colors, the fiber produced by the method has the advantages of richer color layers, better uniformity, no need of a blending or doubling process, short processing flow and obvious advantages.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic radial cross-sectional view of an eccentric sheath-core colored fiber according to an embodiment of the present invention, in which a radial cross-section of a core layer 1 is circular, and a radial cross-section of a sheath layer 2 is circular;
fig. 2 is a schematic view of a radial cross-sectional structure of an eccentric sheath-core colored fiber according to a second embodiment of the present invention, wherein the radial cross-section of the core layer 1 is circular, and the radial cross-section of the sheath layer 2 is in a straight shape;
FIG. 3 is a schematic structural diagram of a spinneret plate selected in the preparation process of an eccentric sheath-core colored fiber according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a spinneret plate selected in the preparation process of eccentric sheath-core colored fibers according to a second embodiment of the present invention;
fig. 5 is a flowchart of steps of a method for preparing an eccentric sheath-core colored fiber according to an embodiment or a second embodiment of the present invention.
Detailed Description
The invention provides an eccentric sheath-core colored fiber and a preparation method thereof, aiming at solving the problems in the prior art, and the eccentric sheath-core colored fiber can ensure that a core layer is eccentrically distributed in a sheath layer, so that the colored fiber has different colors when observed from different angles, and the colored fiber presents richer color mixing effect, thereby being more suitable for practical use.
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be given to the eccentric sheath-core colored fiber and the preparation method thereof, the specific implementation manner, the structure, the characteristics and the effects thereof according to the present invention with reference to the accompanying drawings and the preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, with the specific understanding that: both a and B may be included, a may be present alone, or B may be present alone, and any of the three cases can be provided.
Eccentric sheath-core colored fiber
The eccentric sheath-core colored fiber provided by the invention comprises a sheath layer and a core layer, wherein the sheath layer is coated on the periphery of the core layer. Wherein, the core layer deviates from the geometric center of the skin layer when observed from the cross section of the eccentric sheath-core colored fiber; the colors of the core layer and the skin layer are different.
The eccentric colored fiber provided by the invention adopts an eccentric sheath-core structure to carry out composite spinning by two different color components to obtain the colored fiber, the colors observed from different angles of the fiber are different due to the transparency of the polymer and the superposition effect of the colors, and in a final textile product, the final product presents a color mixing effect due to the randomness of the twisting angle of the fiber, thereby enriching the types of dope-dyed fiber products. Compared with a product processed by blending or doubling two kinds of fibers with different colors, the fiber produced by the method has the advantages of richer color layers, better uniformity, no need of a blending or doubling process, short processing flow and obvious advantages.
Wherein, the polymer adopted by the skin layer is selected from one of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polypropylene, polycaprolactam, polyhexamethylene adipamide, polylactic acid, and polymerization modified polyethylene terephthalate added with any one of isophthalic acid-5-sodium sulfonate or polyethylene glycol, phthalic anhydride, isophthalic acid, adipic acid and sebacic acid; the polymer adopted by the core layer is selected from one of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polypropylene, polycaprolactam, polyhexamethylene adipamide, polylactic acid, and polymerization modified polyethylene terephthalate added with any one of isophthalic acid-5-sodium sulfonate or polyethylene glycol, phthalic anhydride, isophthalic acid, adipic acid and sebacic acid. These polymers have the characteristic of being heat-fusible, and facilitate the eccentric colored fibers obtained after passing through a spinneret.
Wherein, the radial section of the core layer is circular; the shape of the radial section of the skin layer is selected from one of a circle, a triangle and a straight line. Under the condition, the core layer is distributed in the skin layer in an uneven/asymmetrical mode, so that the thickness of the skin layer has obvious uneven characteristics at different positions, and the eccentric skin-core colored fiber can present richer visual effects when being observed from the whole or different angles.
Wherein, the area of the radial section of the core layer accounts for 5 to 95 percent of the area of the radial section of the skin layer. When the area of the radial section of the core layer accounts for the larger percentage of the area of the radial section of the skin layer, the eccentric skin-core colored fiber has more color effect of showing the core layer; when the percentage of the area of the radial section of the core layer to the area of the radial section of the skin layer is smaller, the color effect of the eccentric skin-core colored fiber on the core layer is less.
Preparation method of eccentric sheath-core colored fiber
Referring to fig. 5, the method for preparing the eccentric sheath-core colored fiber provided by the invention comprises the following steps:
preparing a core layer melt containing a first colorant;
preparing a skin melt containing a second colorant;
selecting a spinneret plate comprising a first spinneret orifice and a second spinneret orifice, wherein the aperture of the first spinneret orifice is smaller than that of the second spinneret orifice, and the first spinneret orifice is arranged by deviating from the geometric center of the second spinneret orifice;
under the set temperature condition, the core layer melt flows through the first spinneret orifice, and the skin layer melt flows through the core layer melt, so that a first intermediate product is formed at the outlet of the first spinneret orifice and the outlet of the second spinneret orifice;
after the first intermediate product is subjected to post-treatment, long filaments or short fibers of the eccentric sheath-core colored fibers are obtained;
wherein the first colorant is a different color than the second colorant.
The preparation method of the eccentric colored fiber provided by the invention adopts an eccentric sheath-core structure to carry out composite spinning by two different color components to obtain the colored fiber, the colors observed from different angles of the fiber are different due to the transparency of the polymer and the superposition effect of the colors, and in a final textile product, the final product presents a color mixing effect due to the randomness of the twisting angle of the fiber, thereby enriching the types of dope colored fiber products. Compared with a product processed by blending or doubling two kinds of fibers with different colors, the fiber produced by the method has the advantages of richer color layers, better uniformity, no need of a blending or doubling process, short processing flow and obvious advantages.
Wherein, the post-treatment comprises the steps of cooling, drafting and winding in sequence, and the eccentric sheath-core colored fiber is an eccentric sheath-core colored fiber filament.
Wherein, the post-treatment comprises the steps of cooling, drafting, curling and cutting in sequence, and the eccentric sheath-core colored fiber is eccentric sheath-core colored fiber short fiber.
Wherein the first spinneret orifice is circular; the shape of the second spinneret orifice is selected from one of a circle, a triangle and a straight line. Under the condition, the core layer is distributed in the skin layer in an uneven/asymmetrical mode, so that the thickness of the skin layer has obvious uneven characteristics at different positions, and the eccentric skin-core colored fiber can present richer visual effects when being observed from the whole or different angles.
Wherein, the area of the radial section of the first spinneret orifice accounts for 5 to 95 percent of the area of the radial section of the second spinneret orifice. When the area of the radial section of the core layer accounts for the larger percentage of the area of the radial section of the skin layer, the eccentric skin-core colored fiber has more color effect of showing the core layer; when the percentage of the area of the radial section of the core layer to the area of the radial section of the skin layer is smaller, the color effect of the eccentric skin-core colored fiber on the core layer is less.
Preparation device of eccentric sheath-core colored fiber
The invention provides a preparation device of eccentric sheath-core colored fibers, which comprises a spinneret plate. The spinneret plate is provided with a first spinneret orifice and a second spinneret orifice, wherein the aperture of the first spinneret orifice is smaller than that of the second spinneret orifice, and the first spinneret orifice is arranged by deviating from the geometric center of the second spinneret orifice.
The preparation device of the eccentric colored fiber provided by the invention adopts an eccentric sheath-core structure to carry out composite spinning by two different color components to obtain the colored fiber, the colors observed from different angles of the fiber are different due to the transparency of the polymer and the superposition effect of the colors, and in a final textile product, the final product presents a color mixing effect due to the randomness of the twisting angle of the fiber, so that the types of dope colored fiber products are enriched. Compared with a product processed by blending or doubling two kinds of fibers with different colors, the fiber produced by the method has the advantages of richer color layers, better uniformity, no need of a blending or doubling process, short processing flow and obvious advantages.
Wherein, the area of the radial section of the first spinneret orifice accounts for 5 to 95 percent of the area of the radial section of the second spinneret orifice. When the area of the radial section of the core layer accounts for the larger percentage of the area of the radial section of the skin layer, the eccentric skin-core colored fiber has more color effect of showing the core layer; when the percentage of the area of the radial section of the core layer to the area of the radial section of the skin layer is smaller, the color effect of the eccentric skin-core colored fiber on the core layer is less.
Wherein, the spinneret includes spinneret body 6, accepts dish 3 and drainage post 4. The center of the bearing plate 3 is provided with a through hole; the aperture of the drainage column 4 is the same as that of the through hole, and the drainage column 4 is fixedly connected with the edge of the through hole through the upper edge of the drainage column; the lower edge of the drainage column 4 is immersed below the upper surface of the spinneret plate body 6, so that the lower edge of the drainage column 4 forms a first spinneret orifice; the setting position of the bearing disc 3 is higher than the upper surface of the spinneret plate body 6. Referring to fig. 3, the second orifice 5a is circular. Referring to fig. 2, the second orifice 5b is in the shape of a straight line. In this case, since the area of the upper surface of the receiving pan 3 is large, the receiving amount of the core layer melt can be made large. During the application, the inside outflow of sandwich layer fuse-element from drainage post 4, the cortex fuse-element flows from the outer wall of drainage post 4 and the clearance between second spinneret orifice 5a or 5b, that is to say, with the help of the isolation of drainage post 4, can avoid disturbing each other before the shaping between sandwich layer fuse-element and the cortex fuse-element, make and finally have obvious boundary line between the colored fibrous sandwich layer of eccentric sheath-core type that forms and the cortex, and be unlikely to be mutually soluble promptly at the stage of spouting, influence the colored fibrous final effect of being presented of eccentric sheath-core type. Because once the core layer and the skin layer of the eccentric sheath-core colored fiber are mutually dissolved in the spinning stage, the core layer and the skin layer form a uniform melt, and the technical effect of showing different colors in the whole observation or the observation at different angles cannot be shown.
The first embodiment is as follows: eccentric sheath-core colored fiber filament with circular section
Skin layer: polyethylene terephthalate, the colorant is color master batch containing red pigment, and the total content of the red pigment is 0.5 percent
Core layer: polyethylene terephthalate, wherein the colorant is color master batch containing yellow pigment, and the total content of the yellow pigment is 0.6 percent
The cross-sectional shape and arrangement of the spinneret orifices are shown in figure 1.
The diameter of the skin layer is 2 times of that of the core layer, the skin layer is partially overlapped with the outer edge of the core layer, the proportion of the core layer is 25 percent, the fiber specification is 160D/72f, and the spinning temperature is 275-.
The cross section of the fiber is circular, and the whole appearance is orange red, but yellow and red are mixed.
Example two: flat section sheath-core eccentric colored fiber filament
Skin layer: polycaprolactam, wherein the colorant is color master batch containing blue pigment, and the total content of the blue pigment is 1.2 percent
Core layer: polycaprolactam, wherein the colorant is color master batch containing yellow pigment, and the total content of the yellow pigment is 1.6 percent
The cross-sectional shape and arrangement of the spinneret orifices are shown in FIG. 2.
The diameter of the semicircle of the skin layer is 1.5 times of the diameter of the spinneret orifice of the core layer, the proportion of the core layer is 19.5 percent, the specification of the fiber is 100D/24f, and the spinning temperature is 255-275 ℃.
The cross section of the fiber is oval, the whole appearance is blue mixed with yellow, and simultaneously, the fiber has green color light.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An eccentric sheath-core colored fiber, which is characterized by comprising a sheath layer and a core layer, wherein the sheath layer is coated on the periphery of the core layer,
viewed in cross-section of the eccentric sheath-core colored fiber, the core layer is offset from the geometric center of the sheath layer;
the colors of the core layer and the skin layer are different.
2. The eccentric sheath-core colored fiber according to claim 1,
the polymer adopted by the skin layer is selected from one of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polypropylene, polycaprolactam, polyhexamethylene adipamide, polylactic acid, and polymerization modified polyethylene terephthalate added with any one of isophthalic acid-5-sodium sulfonate or polyethylene glycol, phthalic anhydride, isophthalic acid, adipic acid and sebacic acid;
the polymer adopted by the core layer is selected from one of polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polypropylene, polycaprolactam, polyhexamethylene adipamide, polylactic acid, and polymerization modified polyethylene terephthalate added with any one of isophthalic acid-5-sodium sulfonate or polyethylene glycol, phthalic anhydride, isophthalic acid, adipic acid and sebacic acid;
as a preference, the first and second liquid crystal compositions are,
the radial section of the core layer is circular;
the shape of the radial section of the skin layer is selected from one of a circle, a triangle and a straight line;
as a preference, the first and second liquid crystal compositions are,
the area of the radial section of the core layer accounts for 5-95% of the area of the radial section of the skin layer.
3. The method of producing an eccentric sheath-core colored fiber according to any one of claims 1-2, comprising the steps of:
preparing a core layer melt containing a first colorant;
preparing a skin melt containing a second colorant;
selecting a spinneret plate comprising a first spinneret orifice and a second spinneret orifice, wherein the aperture of the first spinneret orifice is smaller than that of the second spinneret orifice, and the first spinneret orifice is arranged by deviating from the geometric center of the second spinneret orifice;
under the set temperature condition, the core layer melt flows through the first spinneret orifice, and the skin layer melt flows through the core layer melt, so that a first intermediate product is formed at an outlet of the first spinneret orifice and an outlet of the second spinneret orifice;
after the first intermediate product is subjected to post-treatment, filaments or short fibers of the eccentric sheath-core colored fibers are obtained;
wherein the first colorant is a different color than the second colorant.
4. The method for producing eccentric sheath-core colored fibers according to claim 3,
the post-treatment comprises the steps of cooling, drafting and winding in sequence, and the eccentric sheath-core colored fiber is an eccentric sheath-core colored fiber filament.
5. The method for producing eccentric sheath-core colored fibers according to claim 3,
the post-treatment comprises the steps of cooling, drafting, curling and cutting in sequence, and the eccentric sheath-core colored fiber is eccentric sheath-core colored fiber short fiber.
6. The method for producing eccentric sheath-core colored fibers according to claim 3,
the first spinneret orifice is circular;
the shape of the second spinneret orifice is selected from one of a circle, a triangle and a straight line.
7. The method for producing eccentric sheath-core colored fibers according to claim 3,
the area of the radial cross section of the first spinneret orifice accounts for 5-95% of the area of the radial cross section of the second spinneret orifice.
8. The apparatus for producing eccentric sheath-core colored fibers according to any one of claims 1 to 2, comprising a spinneret,
the spinneret plate is provided with a first spinneret orifice and a second spinneret orifice, wherein the aperture of the first spinneret orifice is smaller than that of the second spinneret orifice, and the first spinneret orifice is arranged by deviating from the geometric center of the second spinneret orifice.
9. The apparatus for producing eccentric sheath-core colored fibers according to claim 8, wherein the area of the radial cross section of the first spinneret hole is 5 to 95% of the area of the radial cross section of the second spinneret hole.
10. The apparatus for preparing eccentric sheath-core colored fiber according to claim 8 or 9, wherein the spinneret comprises a spinneret body, a receiving disc and a drainage column,
a through hole is formed in the center of the bearing disc;
the diameter of the drainage column is the same as that of the through hole, and the drainage column is fixedly connected with the edge of the through hole through the upper edge of the drainage column;
the lower edge of the guide post is immersed below the upper surface of the spinneret plate body, so that the lower edge of the guide post forms the first spinneret orifice;
the bearing disc is arranged higher than the upper surface of the spinneret plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340148.9A CN111074377A (en) | 2019-12-23 | 2019-12-23 | Eccentric sheath-core colored fiber, and preparation method and preparation device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340148.9A CN111074377A (en) | 2019-12-23 | 2019-12-23 | Eccentric sheath-core colored fiber, and preparation method and preparation device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111074377A true CN111074377A (en) | 2020-04-28 |
Family
ID=70316933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911340148.9A Pending CN111074377A (en) | 2019-12-23 | 2019-12-23 | Eccentric sheath-core colored fiber, and preparation method and preparation device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111074377A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176454A (en) * | 2020-09-10 | 2021-01-05 | 深圳市华远新材料有限公司 | Colored polylactic acid tow and preparation method thereof |
| CN114059193A (en) * | 2021-11-19 | 2022-02-18 | 江苏省纺织研究所股份有限公司 | Antibacterial composite conductive filament and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030049442A1 (en) * | 2001-07-03 | 2003-03-13 | Qiang Zhou | High-strength chemically resistant thin sheath fibers and methods of manufacture |
| JP2003089928A (en) * | 2001-07-13 | 2003-03-28 | Nippon Ester Co Ltd | Polyester conjugate fiber with latent shrinkage, and nonwoven fabric comprising the same |
| CN1520472A (en) * | 2001-07-03 | 2004-08-11 | 霍尼韦尔国际公司 | High-strength thin sheath fibers |
| CN102257194A (en) * | 2008-10-17 | 2011-11-23 | 英威达技术有限公司 | Bicomponent spandex |
| CN102791913A (en) * | 2010-01-04 | 2012-11-21 | 特雷维拉股份有限公司 | New bicomponent fiber |
| TW201529918A (en) * | 2014-01-27 | 2015-08-01 | Yi-Yong Chen | Stock dyed core-sheath type composite fiber |
| JP2019108651A (en) * | 2017-12-15 | 2019-07-04 | 日本エステル株式会社 | Composite fiber having latent crimpability |
-
2019
- 2019-12-23 CN CN201911340148.9A patent/CN111074377A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030049442A1 (en) * | 2001-07-03 | 2003-03-13 | Qiang Zhou | High-strength chemically resistant thin sheath fibers and methods of manufacture |
| CN1520472A (en) * | 2001-07-03 | 2004-08-11 | 霍尼韦尔国际公司 | High-strength thin sheath fibers |
| JP2003089928A (en) * | 2001-07-13 | 2003-03-28 | Nippon Ester Co Ltd | Polyester conjugate fiber with latent shrinkage, and nonwoven fabric comprising the same |
| CN102257194A (en) * | 2008-10-17 | 2011-11-23 | 英威达技术有限公司 | Bicomponent spandex |
| CN102791913A (en) * | 2010-01-04 | 2012-11-21 | 特雷维拉股份有限公司 | New bicomponent fiber |
| TW201529918A (en) * | 2014-01-27 | 2015-08-01 | Yi-Yong Chen | Stock dyed core-sheath type composite fiber |
| JP2019108651A (en) * | 2017-12-15 | 2019-07-04 | 日本エステル株式会社 | Composite fiber having latent crimpability |
Non-Patent Citations (1)
| Title |
|---|
| 上海市纺织工业局七.二一工人大学: "《锦纶生产工艺》", 30 June 1977, 上海人民出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176454A (en) * | 2020-09-10 | 2021-01-05 | 深圳市华远新材料有限公司 | Colored polylactic acid tow and preparation method thereof |
| CN114059193A (en) * | 2021-11-19 | 2022-02-18 | 江苏省纺织研究所股份有限公司 | Antibacterial composite conductive filament and application thereof |
| CN114059193B (en) * | 2021-11-19 | 2023-08-22 | 江苏省纺织研究所股份有限公司 | Antibacterial composite conductive filament and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2506258C2 (en) | Process for the production of mixed yarns | |
| JPH05222605A (en) | Preparation of fiber branched into three which consists of composite ingredients | |
| US3500498A (en) | Apparatus for the manufacture of conjugated sheath-core type composite fibers | |
| CN111074377A (en) | Eccentric sheath-core colored fiber, and preparation method and preparation device thereof | |
| DE1435405C3 (en) | Process for the production of composite threads from two different polymeric materials | |
| CN103436972A (en) | Method for preparing multi-component composite fibers | |
| CN103526323A (en) | Copolyester melt direct-spinning controllable multiple differential shrinkage composite fiber and preparation method thereof | |
| CN111206298A (en) | Preparation method of skin-core composite structure dope-colored red chinlon 6 fiber | |
| CN111020777B (en) | Heat-moisture comfortable double-ply yarn and preparation method thereof | |
| DE1660428A1 (en) | Shrinkable polyamide fibers and process for making the same | |
| CN105908271A (en) | Production method of colored polyester yarn with hollow section | |
| CN201506865U (en) | Combined-type spinneret plate | |
| CN105803600A (en) | Multi-differential shrinkage combined filament yarn preparation device and method | |
| CN101798713B (en) | Multicomponent composite eccentric fiber and preparation method thereof | |
| CN110257954A (en) | The preparation method of three component parallel composite fibers | |
| CN105908286A (en) | Process for producing same-plate two-tone superfine composite draw textured yarns | |
| CN101979727B (en) | Process for preparing figured superfine sea-island staple fibers for synthetic leather | |
| KR0132923B1 (en) | A petal type conjugated yarn and a spinning nozzle for producing the same | |
| CN112680843A (en) | Production process of composite moisture-absorbing quick-drying polyester low-stretch yarn | |
| CN110820102A (en) | Hollow fiber of aerogel and method for producing same | |
| JPS59100717A (en) | Composite multifilament yarn and its manufacture | |
| CN109943995A (en) | A kind of preparation method of colorful polyester long filament | |
| DE102008038328A1 (en) | Melt spinning of monochrome filaments for producing synthetic thread e.g. carpet yarn, comprises dyeing a polymer melt of a polymer material by addition of colorants, and extruding the filaments from the polymer melt | |
| JPH0232366B2 (en) | ||
| CN216550908U (en) | Functional wrap yarn |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |