CN115125639A - High-strength folding-resistant polyester composite yarn and preparation process thereof - Google Patents

High-strength folding-resistant polyester composite yarn and preparation process thereof Download PDF

Info

Publication number
CN115125639A
CN115125639A CN202210839692.3A CN202210839692A CN115125639A CN 115125639 A CN115125639 A CN 115125639A CN 202210839692 A CN202210839692 A CN 202210839692A CN 115125639 A CN115125639 A CN 115125639A
Authority
CN
China
Prior art keywords
composite yarn
component
polyester
slices
layer
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
Application number
CN202210839692.3A
Other languages
Chinese (zh)
Inventor
斯行舟
陈奕南
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuji Dingfeng Chemical Fiber Co ltd
Original Assignee
Zhuji Dingfeng Chemical Fiber Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhuji Dingfeng Chemical Fiber Co ltd filed Critical Zhuji Dingfeng Chemical Fiber Co ltd
Priority to CN202210839692.3A priority Critical patent/CN115125639A/en
Publication of CN115125639A publication Critical patent/CN115125639A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • 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
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • 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
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/12—Threads containing metallic filaments or strips
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/20—Metallic fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

The invention discloses a high-strength folding-resistant polyester composite yarn and a preparation process thereof, and relates to the field of spinning processes, which comprises a first composite yarn and a second composite yarn, wherein the first composite yarn and the second composite yarn both have triangular sections, have better bending resistance and wear resistance fastness, avoid the condition that fibers are broken due to friction, and simultaneously improve the bending resistance of the fibers, the arranged first core layer and the second core layer can improve the integral rigidity of the fibers and improve the bending resistance, a first outer sizing layer can tightly attach hairiness, hairiness and the like on the outer side of a first polyester skin layer to the outer surface of the first polyester skin layer in the spinning process, reduce the occurrence of breakage caused by fiber friction, SBS rubber modified particles are arranged in the first core layer and the second core layer, can improve the tensile resistance, avoid the fibers from being broken when being stretched, and have higher strength, the fiber breakage due to friction is reduced, thereby improving the strength of the fiber itself.

Description

High-strength folding-resistant polyester composite yarn and preparation process thereof
Technical Field
The invention relates to the field of spinning processes, in particular to high-strength folding-resistant polyester composite yarn and a preparation process thereof.
Background
Terylene is an important variety in synthetic fibers and is the trade name of polyester fibers in China. It is made up by using refined terephthalic acid or dimethyl terephthalate and glycol as raw material and making them pass through the processes of esterification or ester exchange and polycondensation reaction to obtain the fibre-forming high polymer polyethylene glycol terephthalate and making it pass through the processes of spinning and post-treatment so as to obtain the invented fibre.
But traditional dacron silk is mostly circular cross-section, and anti effect of buckling is comparatively general, and the wearability is relatively poor, and the fold and the wearing and tearing appear easily in the fabric of making permanent use.
Disclosure of Invention
The invention aims to provide a high-strength folding-resistant polyester composite yarn and a preparation process thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a high-strength folding-resistant polyester composite yarn and a preparation process thereof comprise a first composite yarn and a second composite yarn, wherein the first composite yarn and the second composite yarn are of covered yarn structures, the cross-sectional structures of the first composite yarn and the second composite yarn are both triangular special-shaped cross sections, and a fiber fabric with the triangular cross section has bending resistance and wear resistance which are much higher than those of a fiber fabric with a circular cross section, so that the situation that the fibers are broken due to friction is avoided, and the bending resistance of the fibers is improved;
the first composite yarn is provided with a first polyester skin layer, the middle side of the first polyester skin layer is provided with a first hollow area for a hollow structure, the first hollow area is internally provided with a first core layer, the first core layer can improve the rigidity of the whole fiber and the bending resistance, and meanwhile, the first hollow area can improve the heat retention of the fiber;
a first outer sizing layer is arranged on the outer side of the first polyester skin layer, and hairiness, hairsilk and the like on the outer side of the first polyester skin layer in the spinning process can be tightly attached to the outer surface of the first polyester skin layer by the first outer sizing layer, so that the friction force of the outer surface of the fiber is reduced, and the occurrence of breakage caused by fiber friction is reduced;
the second composite yarn is provided with a second polyester skin layer, the middle side of the second polyester skin layer is provided with a second hollow area for a hollow structure, a second core layer is arranged in the second hollow area, the second core layer can improve the rigidity and the bending resistance of the fiber, and meanwhile, the second hollow area can improve the heat retention of the fiber;
SBS rubber modified particles are arranged in the first core layer and the second core layer, tensile resistance of the first core layer and the second core layer can be improved, and breakage of fibers when the fibers are stretched is avoided;
a second sizing layer is arranged on the outer side of the second polyester skin layer, and hairiness, hairsilk and the like on the outer side of the second polyester skin layer in the spinning process can be tightly attached to the outer surface of the second polyester skin layer by the second sizing layer, so that the friction force of the outer surface of the fiber is reduced, and the occurrence of fracture caused by fiber friction is reduced;
the outer side surface of the second polyester skin layer is provided with wear-resistant fibers, the wear-resistant fibers are metal fiber yarns, the strength of the wear-resistant fibers is high, the wear resistance of the wear-resistant fibers is far higher than that of common fibers, when the second composite yarn and the first composite yarn are wound to form a coated yarn structure, the wear-resistant fibers are in contact with other fibers, direct friction among the fibers can be avoided, fiber breakage caused by friction is reduced, and the strength of the fibers is improved;
preferably, the first core layer and the second core layer are both provided with SBS rubber modified particles, so that the tensile resistance of the first core layer and the second core layer can be improved, and the fibers are prevented from being broken when being stretched.
Preferably, the first core layer is provided with a nano phase change temperature control microcapsule, and the nano phase change temperature control microcapsule can reduce temperature fluctuation of the fiber and avoid the situation that the fiber strength is reduced too much due to high temperature.
Preferably, the second core layer is provided with water-absorbent resin particles, the water-absorbent resin particles can improve the moisture absorption performance of the second composite yarn, and when the first composite yarn and the second composite yarn form the covered yarn, the second core layer can keep the humidity of the first composite yarn and the humidity of the second composite yarn within a certain range, so that the generation of static electricity can be reduced, the situation that the fibers are entangled and then are broken due to friction caused by the static electricity can be avoided, and the wearing comfort of fabrics adopting the fibers can be improved.
Preferably, the wear-resistant fiber is a stainless steel wire, has good flexibility, good mechanical property and corrosion resistance, and is completely resistant to the corrosion of nitric acid, phosphoric acid, alkali and organic chemical solvents.
A preparation process of high-strength folding-resistant polyester composite yarns comprises the following steps:
s1, carrying out slice screening, drying and mixing treatment, screening polyester fiber slices, removing dust debris and the like in the slices, heating and drying the screened slices through heating air to remove excessive water, adding the slices into a polymerization material hopper to form a component A, screening polyester fiber slices, removing dust debris and the like in the slices, heating and drying the screened slices through heating air to remove excessive water, adding the nanometer phase change temperature control microcapsules to mix to form a component B, heating and drying the screened slices to remove excessive water, adding the slices into the polymerization material hopper to form a component C, heating and drying the screened slices to remove excessive water, adding the water-absorbent resin particles to mix to form a component D;
s2, heating, melting and extruding, and jetting out a component A and a component B through a spinning component with a skin-core structure, wherein the component B is a core structure to form the first core layer, the component A is a skin structure to form the first polyester skin layer, the spinneret holes for jetting out the component A are triangular, the spinneret holes for jetting out the component B are circular, and the component C and the component D are jetted out through another spinning component with a skin-core structure, wherein the component D is a core structure to form the second core layer, the component C is a skin structure to form the second polyester skin layer, the spinneret holes for jetting out the component C are triangular, and the spinneret holes for jetting out the component D are circular;
s3, cooling the formed first composite yarn and the second composite yarn through respective channels, blowing cooling air into the channels through a cooling air system to cool fibers, and drawing and forming the first composite yarn and the second composite yarn under the drawing action of respective winding rollers;
s4, sizing, namely, enabling the molded first composite yarn and the molded second composite yarn to pass through a sizing machine, forming a first outer sizing layer on the outer side of the first composite yarn, forming a second polyester skin layer on the outer side of the second composite yarn, and enabling hairiness, hairiness and the like to be tightly attached to the outer surface of the fiber through the first outer sizing layer and the second polyester skin layer, so that the friction force of the outer surface of the fiber is reduced, and the occurrence of breakage caused by fiber friction is reduced;
s5, polymerizing the wear-resistant fibers, and winding the wear-resistant fibers on the outer side face of the second composite wire, so that the second composite wire has good surface wear resistance;
and S6, coating the fibers, namely coating and winding the first composite yarn and the second composite yarn to form one fiber, wherein the abrasion-resistant fiber has good strength and abrasion resistance as a whole.
Preferably, in the step of S1, screening, drying and mixing the slices, the temperature of the heated air is 80 ℃, the humidity is not more than 35%, and the heated air is dry hot air, so that the moisture in the slices can be rapidly taken away.
Preferably, the temperature of the cooling air in the step S3 and the cooling step is 5-15 ℃, the humidity is not more than 35%, the cooling air is dry and cold air, the fibers can be cooled fast and efficiently, and the fiber quality is improved.
Preferably, the wind speed of the cooling wind in the step S3 and the cooling step is 0.8m/S to 1m/S, and the wind speed of the cooling wind can ensure that the fiber interior can be rapidly cooled on the premise of avoiding the influence of the vortex formed in the shaft on the spinning, so as to avoid the increase of the uneven linear density.
In conclusion, the beneficial effects of the invention are as follows:
the first composite yarn and the second composite yarn both adopt triangular sections, have better bending resistance and wear resistance fastness, avoid the condition that fibers are broken due to friction, simultaneously improve the bending resistance of the fibers, improve the rigidity of the whole fibers by the arranged first core layer and the second core layer, improve the bending resistance, enable hairiness, hairiness and the like on the outer side of the first polyester cortex layer to be tightly attached to the outer surface of the first polyester cortex layer in the spinning process by the first outer sizing layer, reduce the occurrence of the condition that the fibers are broken due to friction, improve the tensile resistance, avoid the fibers from being broken when being stretched, have higher strength, reduce the fiber breakage due to friction and improve the strength of the fibers.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a high-strength folding-resistant polyester composite yarn in a front view;
FIG. 2 is a schematic cross-sectional view of the first composite filament of FIG. 1 according to the present invention;
FIG. 3 is a schematic three-dimensional structure of the first composite filament of FIG. 2 according to the present invention;
FIG. 4 is a schematic cross-sectional view of the second composite filament of FIG. 1 according to the present invention;
FIG. 5 is a schematic three-dimensional structure of the second composite filament of FIG. 4 according to the present invention.
The scores in the figures are as follows: 11. a first composite filament; 12. a second composite filament; 13. a first polyester skin layer; 14. a first outer sizing layer; 15. a first core layer; 16. nano phase change temperature control microcapsules; 17. a first hollow region; 18. a second polyester skin layer; 19. a second sizing layer; 20. a second core layer; 21. water-absorbent resin particles; 22. a second hollow region; 23. an abrasion resistant fiber.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, front and rear directions described below correspond to the front, back, left, right, top and bottom directions of the view direction of fig. 1, fig. 1 is a front view of the apparatus of the present invention, and the directions shown in fig. 1 correspond to the front, back, left, right, top and bottom directions of the apparatus of the present invention.
Referring to fig. 1-5, an embodiment of the present invention is shown: a high-strength folding-resistant polyester composite yarn and a preparation process thereof comprise a first composite yarn 11 and a second composite yarn 12, wherein the first composite yarn 11 and the second composite yarn 12 are of wrapped yarn structures, the cross-sectional structures of the first composite yarn 11 and the second composite yarn 12 are both triangular special-shaped cross sections, and a fiber fabric with the triangular cross section has bending resistance and wear resistance fastness which are much higher than those of a fiber fabric with a circular cross section, so that the situation that the fibers are broken due to friction is avoided, and the bending resistance of the fibers is improved;
the first composite yarn 11 is provided with a first polyester skin layer 13, the middle side of the first polyester skin layer 13 is provided with a first hollow area 17 for a hollow structure, the first hollow area 17 is provided with a first core layer 15, the first core layer 15 is arranged to improve the rigidity of the whole fiber and improve the bending resistance, and meanwhile, the first hollow area 17 can improve the heat retention of the fiber;
a first outer sizing layer 14 is arranged on the outer side of the first polyester skin layer 13, and the first outer sizing layer 14 can enable hairiness, hairline and the like on the outer side of the first polyester skin layer 13 to be tightly attached to the outer surface of the first polyester skin layer 13 in the spinning process, so that the friction force of the outer surface of the fiber is reduced, and the occurrence of fracture caused by fiber friction is reduced;
a second polyester skin layer 18 is arranged in the second composite yarn 12, a second hollow area 22 is arranged at the middle side of the second polyester skin layer 18 for a hollow structure, a second core layer 20 is arranged in the second hollow area 22, the second core layer 20 can improve the rigidity and the bending resistance of the fiber, and meanwhile, the second hollow area 22 can improve the heat retention of the fiber;
the SBS rubber modified particles are arranged in the first core layer 15 and the second core layer 20, so that the tensile resistance of the first core layer 15 and the second core layer 20 can be improved, and the fibers are prevented from being broken when being stretched;
a second sizing layer 19 is arranged on the outer side of the second polyester skin layer 18, and the second sizing layer 19 can closely attach hairiness, hairsilk and the like on the outer side of the second polyester skin layer 18 to the outer surface of the second polyester skin layer 18 in the spinning process, so that the friction force of the outer surface of the fiber is reduced, and the occurrence of breakage caused by fiber friction is reduced;
the outer side surface of the second polyester skin layer 18 is provided with the wear-resistant fibers 23, the wear-resistant fibers 23 are metal fiber yarns, the strength of the wear-resistant fibers 23 is high, the wear resistance of the wear-resistant fibers is far higher than that of common fibers, when the second composite yarn 12 and the first composite yarn 11 are wound to form a coated yarn structure, the wear-resistant fibers 23 are in contact with other fibers, direct friction between the fibers can be avoided, fiber breakage caused by friction is reduced, and the strength of the fibers is improved;
in addition, in one embodiment, the SBS rubber modified particles are disposed in both the first core layer 15 and the second core layer 20, so that the tensile resistance of the first core layer 15 and the second core layer 20 can be improved, and the fibers can be prevented from being broken when being stretched.
In addition, in one embodiment, the first core layer 15 is provided with the nano phase change temperature control microcapsules 16, and the nano phase change temperature control microcapsules 16 can reduce the temperature fluctuation of the fibers, so as to avoid the situation that the strength of the fibers is reduced too much when the temperature is higher.
In addition, in one embodiment, the water absorbent resin particles 21 are disposed in the second core layer 20, the water absorbent resin particles 21 can improve the moisture absorption performance of the second composite yarn 12, and when the first composite yarn 11 and the second composite yarn 12 form a coated yarn, the second core layer 20 can keep the humidity of the first composite yarn 11 and the humidity of the second composite yarn 12 within a certain range, so as to reduce the generation of static electricity, avoid the situation that the fibers are entangled and then broken due to friction caused by the static electricity, and improve the wearing comfort of fabrics using the fibers.
In addition, in one embodiment, the wear resistant fibers 23 are stainless steel wires, which are flexible, have good mechanical properties and corrosion resistance, and are completely resistant to corrosion by nitric acid, phosphoric acid, alkali, and organic chemical solvents.
A preparation process of high-strength folding-resistant polyester composite yarns comprises the following steps:
s1, carrying out slice screening, drying and mixing treatment, screening polyester fiber slices, removing dust debris and the like in the slices, heating and drying the screened slices through heating air to remove excessive water, adding the slices into a polymerization material hopper to form a component A, screening polyester fiber slices, removing dust debris and the like in the slices, heating and drying the screened slices through heating air to remove excessive water, adding the nanometer phase change temperature control microcapsules 16 to mix to form a component B, heating and drying the screened slices to remove excessive water, adding the slices into the polymerization material hopper to form a component C, heating and drying the screened slices to remove excessive water, adding the water-absorbent resin particles 21 to mix to form a component D;
s2, heating, melting and extruding, and spraying a component A and a component B through a spinning component with a skin-core structure, wherein the component B is a core structure to form the first core layer 15, the component A is a skin structure to form the first polyester skin layer 13, the spinneret holes for spraying the component A are triangular, the spinneret holes for spraying the component B are circular, and the component C and the component D are sprayed through another spinning component with a skin-core structure, wherein the component D is the core structure to form the second core layer 20, the component C is the skin structure to form the second polyester skin layer 18, the spinneret holes for spraying the component C are triangular, and the spinneret holes for spraying the component D are circular;
s3, cooling, wherein the formed first composite yarn 11 and the second composite yarn 12 are cooled by respective ducts, cooling air is blown into the ducts by a cooling air system to cool the fibers, and the first composite yarn 11 and the second composite yarn 12 are formed by drawing under the drawing action of respective winding rollers;
s4, sizing, passing the molded first composite yarn 11 and second composite yarn 12 through a sizing machine, forming the first outer sizing layer 14 on the outer side of the first composite yarn 11, forming the second polyester skin layer 18 on the outer side of the second composite yarn 12, wherein the first outer sizing layer 14 and the second polyester skin layer 18 can closely attach hairiness, hairiness and the like to the outer surface of the fiber, so as to reduce the friction force on the outer surface of the fiber and the occurrence of breakage caused by fiber friction;
s5, polymerizing the wear-resistant filaments, and winding the wear-resistant fibers 23 on the outer side of the second composite filament 12, so that the second composite filament 12 has good surface wear resistance;
and S6, coating and winding two strands of fibers of the first composite yarn 11 and the second composite yarn 12 to form a fiber, wherein the abrasion-resistant fiber 23 has good strength and abrasion resistance of the whole fiber.
In addition, in one embodiment, in the step of S1, screening, drying and mixing the slices, the temperature of the heated air is 80 ℃, the humidity is not more than 35%, and the heated air is dry hot air, so that the moisture in the slices can be rapidly taken away.
In addition, in one embodiment, the temperature of the cooling air in the step S3 and the cooling step is 5-15 ℃, the humidity is not more than 35%, the cooling air is dry and cold air, the fibers can be cooled fast and efficiently, and the fiber quality is improved.
In addition, in one embodiment, the wind speed of the cooling wind in the step S3 and the cooling step is 0.8m/S to 1m/S, and the wind speed of the cooling wind can ensure that the fiber interior can be cooled rapidly on the premise of avoiding the formation of vortex in the shaft to influence spinning, so as to avoid the increase of uneven linear density.
In the concrete embodiment, when the fiber is prepared, the chips are firstly screened, dried and mixed, the polyester fiber chips are screened, the dust chips and the like in the chips are removed, the screened chips are heated and dried by heating air to remove redundant water and then are added into a polymerization material hopper to be a component A, the polyester fiber chips are screened, the dust chips and the like in the chips are removed, the screened chips are heated and dried by heating air to remove redundant water and then are added with a nano phase change temperature control microcapsule 16 to be mixed to form a component B, the screened chips are heated and dried to remove redundant water and then are added into the polymerization material hopper to be a component C, the screened chips are heated and dried to remove redundant water and then are added with water absorbent resin particles 21 to be mixed to form a component D, the component A and the component B are sprayed by a sheath-core structure spinning assembly, wherein the component B is a core structure to form a first core layer 15, the component A is a skin structure to form a first polyester skin layer 13, the spinneret holes for spraying the component A are triangular, the spinneret holes for spraying the component B are circular, the component C and the component D are sprayed out through another set of spinneret assembly with the skin-core structure, the component D is the core structure to form a second core layer 20, the component C is the skin structure to form a second polyester skin layer 18, the spinneret holes for spraying the component C are triangular, the spinneret holes for spraying the component D are circular, the formed first composite yarn 11 and the second composite yarn 12 are cooled through respective channels, cooling air is blown into the channels through a cooling air system to cool fibers, the first composite yarn 11 and the second composite yarn 12 are drawn and formed under the drawing action of respective winding rollers, the formed first composite yarn 11 and the second composite yarn 12 pass through a sizing machine, the first outer sizing layer 14 is formed on the outer side of the first composite yarn 11, the second polyester skin layer 18 is formed on the outer side of the second composite yarn 12, the hairiness, the hairline and the like can be tightly attached to the outer surface of the fiber through the first outer sizing layer 14 and the second polyester skin layer 18, so that the friction force of the outer surface of the fiber is reduced, the occurrence of breakage caused by fiber friction is reduced, the wear-resistant fiber 23 is independently wound on the outer side surface of the second composite yarn 12, the second composite yarn 12 has good surface wear resistance, two strands of fibers of the first composite yarn 11 and the second composite yarn 12 are wrapped and wound to form one fiber, and due to the effect of the wear-resistant fiber 23, the whole fiber has good strength and wear resistance.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims (9)

1. The high-strength folding-resistant polyester composite yarn comprises a first composite yarn (11) and a second composite yarn (12), and is characterized in that: the first composite wire (11) and the second composite wire (12) are of a covered wire structure, and the cross-sectional structures of the first composite wire (11) and the second composite wire (12) are both triangular special-shaped cross sections;
a first polyester skin layer (13) is arranged in the first composite yarn (11), a first hollow area (17) is arranged on the middle side of the first polyester skin layer (13) in a hollow structure, and a first core layer (15) is arranged in the first hollow area (17);
a first outer sizing layer (14) is arranged on the outer side of the first polyester skin layer (13);
a second polyester skin layer (18) is arranged in the second composite yarn (12), a second hollow area (22) is arranged at the middle side of the second polyester skin layer (18) in a hollow structure, and a second core layer (20) is arranged in the second hollow area (22);
SBS rubber modified particles are arranged in the first core layer (15) and the second core layer (20);
a second sizing layer (19) is arranged on the outer side of the second polyester skin layer (18);
the outer side surface of the second polyester skin layer (18) is provided with wear-resistant fibers (23), and the wear-resistant fibers (23) are metal fiber yarns.
2. The high-strength folding-resistant polyester composite yarn as claimed in claim 1, wherein: SBS rubber modified particles are arranged in the first core layer (15) and the second core layer (20).
3. The high-strength folding-resistant polyester composite yarn as claimed in claim 2, wherein: and a nano phase change temperature control microcapsule (16) is arranged in the first core layer (15).
4. The high-strength folding-resistant polyester composite yarn as claimed in claim 2, wherein: and water-absorbent resin particles (21) are arranged in the second core layer (20).
5. The high-strength folding-resistant polyester composite yarn as claimed in claim 1, wherein: the wear-resistant fibers (23) are stainless steel wires.
6. The preparation process of the high-strength folding-resistant polyester composite yarn obtained according to any one of claims 1 to 5 is characterized by comprising the following steps of:
s1, screening, drying and mixing the slices, screening polyester fiber slices, removing dust debris and the like in the slices, heating and drying the screened slices by heating air to remove redundant water, adding the slices into a polymerization hopper to form a component A, screening polyester fiber slices, removing dust debris and the like in the slices, heating and drying the screened slices by heating air to remove redundant water, adding the nano phase change temperature control microcapsules (16) into the slices to mix the slices to form a component B, heating and drying the screened slices to remove redundant water, adding the slices into the polymerization hopper to form a component C, heating and drying the screened slices to remove redundant water, adding the water-absorbent resin particles (21) into the slices to mix the slices to form a component D;
s2, heating, melting and extruding, and spraying a component A and a component B through a spinning component with a skin-core structure, wherein the component B is a core structure to form the first core layer (15), the component A is a skin structure to form the first polyester skin layer (13), the spinneret holes for spraying the component A are triangular, the spinneret holes for spraying the component B are circular, and the component C and the component D are sprayed through another spinning component with a skin-core structure, wherein the component D is a core structure to form the second core layer (20), the component C is a skin structure to form the second polyester skin layer (18), the spinneret holes for spraying the component C are triangular, and the spinneret holes for spraying the component D are circular;
s3, cooling, namely cooling the formed first composite yarn (11) and the second composite yarn (12) through respective channels, blowing cooling air into the channels through a cooling air system to cool fibers, and drawing and forming the first composite yarn (11) and the second composite yarn (12) under the drawing action of respective winding rollers;
s4, sizing, namely, passing the molded first composite yarn (11) and the molded second composite yarn (12) through a sizing machine, forming a first outer sizing layer (14) on the outer side of the first composite yarn (11), forming a second polyester skin layer (18) on the outer side of the second composite yarn (12), and forming the first outer sizing layer (14) and the second polyester skin layer (18);
s5, polymerizing the wear-resistant wires, and winding the wear-resistant fibers (23) on the outer side face of the second composite wire (12);
and S6, coating the fibers, and winding the two fibers of the first composite yarn (11) and the second composite yarn (12) to form one fiber.
7. The preparation process of the high-strength folding-resistant polyester composite yarn according to claim 6, characterized in that: in the step of S1, the step of screening, drying and mixing the slices, the temperature of the hot air is 80 ℃, and the humidity is not more than 35%.
8. The preparation process of the high-strength folding-resistant polyester composite yarn according to claim 6, characterized in that: and in the step S3, the temperature of the cooling air in the cooling step is 5-15 ℃, and the humidity is not more than 35%.
9. The preparation process of the high-strength folding-resistant polyester composite yarn according to claim 6, characterized in that: and the wind speed of the cooling wind in the S3 and cooling steps is between 0.8m/S and 1 m/S.
CN202210839692.3A 2022-07-18 2022-07-18 High-strength folding-resistant polyester composite yarn and preparation process thereof Pending CN115125639A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210839692.3A CN115125639A (en) 2022-07-18 2022-07-18 High-strength folding-resistant polyester composite yarn and preparation process thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210839692.3A CN115125639A (en) 2022-07-18 2022-07-18 High-strength folding-resistant polyester composite yarn and preparation process thereof

Publications (1)

Publication Number Publication Date
CN115125639A true CN115125639A (en) 2022-09-30

Family

ID=83382998

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210839692.3A Pending CN115125639A (en) 2022-07-18 2022-07-18 High-strength folding-resistant polyester composite yarn and preparation process thereof

Country Status (1)

Country Link
CN (1) CN115125639A (en)

Similar Documents

Publication Publication Date Title
WO2017071201A1 (en) Functional nylon 66 fabric and manufacturing method thereof
CN107313128A (en) A kind of PBT fiber fabrication process
CN105177740A (en) A two-component abnormity hollow high moisture absorption curling composite fiber and a preparation method thereof
US10640889B2 (en) Method to form yarn via film fiberizing spinning
WO2005010258A1 (en) Woven or knitted cloth containing two different yarns and exhibiting reduction of interstitial rate in becoming wet
CN101490317A (en) Multilobal filament, fabrics and process for making the same
CN103122500B (en) A kind of Splittable conjugate fiber and obtained Superfine Fibre Fabric thereof
CN112458633A (en) Double-component self-crimping high-fluffiness fiber spun-bonded non-woven fabric and preparation method thereof
CN113737292B (en) Terylene full-dull superfine denier POY fiber and production method thereof
KR20120007173A (en) Side by side type polyester conjugated filament with excellent crimp property and process of producing thereof
CN111041658B (en) Preparation method of chiffon fabric
CN115125639A (en) High-strength folding-resistant polyester composite yarn and preparation process thereof
CN103122499B (en) A kind of Splittable conjugate fiber and Superfine Fibre Fabric
CN105369648B (en) A kind of manufacture method of healthy cloth
CN109735958A (en) A kind of fire-retardant brocade of hydrophilic wear-resisting easy dye high-modulus washs composite short fiber and preparation method thereof
CN109853058A (en) Different composite fibre of a kind of "-" type three and preparation method thereof
CN111041580B (en) PET/PBT (polyethylene terephthalate/polybutylene terephthalate) same-plate mixed filament yarn and preparation method thereof
CN115233379A (en) High-strength non-woven fabric and processing technology thereof
CN111118634B (en) High-elasticity shrinkable yarn and preparation method thereof
CN112813526A (en) High-performance polyester filament yarn and production method thereof
US7192499B1 (en) Nonwoven fabric with characteristics similar to woven and knitted fabrics
JPS6228405A (en) Fiber having special cross-sectional shape
CN109881420A (en) A kind of novel spunbonded water-jet bonding non-woven fabrics tentering heat setting process
CN210596339U (en) Polyester filament yarn
CN111101257B (en) Thermal fabric and preparation method thereof

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