CN114103188B - Preparation method of multifunctional flat yarn - Google Patents
Preparation method of multifunctional flat yarn Download PDFInfo
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- CN114103188B CN114103188B CN202111212530.9A CN202111212530A CN114103188B CN 114103188 B CN114103188 B CN 114103188B CN 202111212530 A CN202111212530 A CN 202111212530A CN 114103188 B CN114103188 B CN 114103188B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 28
- 229920000642 polymer Polymers 0.000 claims abstract description 25
- 239000003607 modifier Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 42
- 239000000843 powder Substances 0.000 claims description 38
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 34
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 34
- 229920002292 Nylon 6 Polymers 0.000 claims description 33
- 239000004952 Polyamide Substances 0.000 claims description 31
- 229920002647 polyamide Polymers 0.000 claims description 31
- 239000002994 raw material Substances 0.000 claims description 29
- 229920000728 polyester Polymers 0.000 claims description 25
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 16
- 230000000844 anti-bacterial effect Effects 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 12
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 11
- 239000010445 mica Substances 0.000 claims description 11
- 229910052618 mica group Inorganic materials 0.000 claims description 11
- GVFOJDIFWSDNOY-UHFFFAOYSA-N antimony tin Chemical compound [Sn].[Sb] GVFOJDIFWSDNOY-UHFFFAOYSA-N 0.000 claims description 10
- 238000009998 heat setting Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims description 2
- -1 polyethylene terephthalate Polymers 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 238000009987 spinning Methods 0.000 abstract description 12
- 230000001681 protective effect Effects 0.000 abstract description 9
- 230000003115 biocidal effect Effects 0.000 abstract description 4
- 239000000155 melt Substances 0.000 description 12
- 239000008204 material by function Substances 0.000 description 8
- 230000000704 physical effect Effects 0.000 description 7
- 230000002035 prolonged effect Effects 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002155 anti-virotic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
-
- 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
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
-
- 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
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a preparation method of a multifunctional flat wire, which comprises the following steps: 1) Preparing a pre-oriented flat yarn bundle to obtain a pre-oriented functional flat yarn with required linear density; 2) And (3) preparing the flat drawn yarn to obtain the functional flat yarn with the specification of 22-165 dtex/3-36 f. The invention can furthest reduce the risk of blockage of the spinning melt pipeline caused by the addition of the inorganic functional material and prolong the stable production period; and secondly, by adopting a polymer multilayer coextrusion method, the added layer of the inorganic functional material can be flexibly designed, and the characteristics of antibiosis, electric conduction, cool feeling and the like are realized according to different functional modifiers, so that the function of the filament bundle is stronger. Can be applied to special work clothes, protective clothing, window curtains, table mats and the like; the product of the invention has the characteristics of stable quality, good processability and strong product function.
Description
Technical Field
The invention relates to a preparation method of a multifunctional flat yarn, belonging to the field of novel chemical fibers. More specifically, a fiber-grade polymer or a modified polymer with a functional modifier added therein is used as a raw material, and the functional flat yarn is obtained by multilayer coextrusion film forming, longitudinal pre-drafting heat setting, slitting into yarn, stranding to obtain a flat yarn bundle, and then drafting on a drafting machine.
Background
With the expansion of the application field of chemical fibers, the research of functional fibers is attracting more and more attention, and various master batches and fibers with the functions of antibiosis, antivirus, electric conduction, antistatic, cool feeling, self-heating and the like are successfully developed successively. However, the functional fiber is produced in a mode of adding inorganic functional materials, the spinning performance is greatly reduced along with the addition of the inorganic functional materials, for example, a spinning melt pipeline is easy to block, the service life of a spinning component is greatly shortened, and the density of fiber filament wires is low and the spinning speed is high, so that the production efficiency and the product quality are reduced, and therefore, the addition amount and the addition variety are greatly limited, and some functions cannot really meet the design requirements.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a preparation method of a multifunctional flat wire. The invention takes fiber-grade polymer or modified polymer added with functional modifier as raw material, adopts a multilayer coextrusion method, firstly extrudes the polymer into a film, longitudinally pre-drafts and heat sets, cuts, strands and winds to obtain flat tows, and then drafts on a draft machine to obtain the functional flat yarns. Can realize the characteristics of antibiosis, electric conduction, cool feeling and the like according to the different functional modifiers. The invention has the characteristics of good processability, strong product function and the like, and can be applied to special working clothes, protective clothing, window curtains, table mats and the like.
The technical scheme of the invention is as follows:
a preparation method of a multifunctional flat yarn comprises the following steps: 1) Preparation of pre-oriented flat tows: taking fiber-grade polyester or polyamide as a raw material; adopting a three-layer or five-layer co-extrusion die head, and arranging two single-screw extruders, so that an odd layer is used as a component A, and an even layer is used as a component B; wherein a functional modifier for modifying the polymer component is added in the component A or the component B; controlling the temperature of each region of a A, B two-component screw extruder to be 250-290 ℃ in the running process of the extruder, controlling the temperature of a die head to be 270-290 ℃ to obtain a composite film, obtaining a pre-drawn film with the thickness of 30-60 mu m through longitudinal pre-drawing of 4-6 times and heat setting at 140-160 ℃, slitting the film into filaments by a slitting machine, stranding the filaments according to the designed product specification, and winding and forming the filaments at the speed of 50-150 m/min to obtain the pre-oriented functional flat filaments with the required linear density;
2) Preparation of flat drawn yarn: the pre-oriented functional flat yarn is arranged on conventional drawing equipment, the temperature of a hot plate is set to be 50-90 ℃, the temperature of a hot plate is set to be 150-180 ℃, the drawing multiple is set to be 1.40-1.70, and the processing speed is set to be 300m/min, so that the functional flat yarn with the specification of 22-165 dtex/3-36 f is prepared.
The fiber-grade polyester adopts polyethylene terephthalate (PET) with the intrinsic viscosity of 0.685+/-0.01 dL/g (Tung Kun group); the fiber-grade polyamide adopts polyamide 6 (PA 6) with relative viscosity of 2.4+/-0.03 (Jiangsu sea yang technology).
When the fiber-grade polyester is used as a raw material, the functional modifier for modifying the polymer component adopts conductive carbon black powder and tin-antimony doped TIO 2 White conductive powder and silver PET-based antibacterial master batch; the specific adding method comprises the following steps: the black PET-based conductive master batch is prepared by taking the fiber-grade polyester as a raw material and adding conductive carbon black powder (Hangzhou and Union), wherein the addition ratio of the fiber-grade polyester to the conductive carbon black powder is 7:3, a step of; or the fiber-grade polyester is used as a raw material, and tin-antimony doped TIO is added into the fiber-grade polyester 2 The white conductive powder (Hangzhou and Union) is prepared into white PET-based conductive master batch, wherein the adding amount ratio of the fiber-grade polyester to the white conductive powder is 35: 65. Or the fiber-grade polyester is used as a raw material, and silver-series PET-based antibacterial master batch (model is NOVARON AGT330, supplied by Japan SR Co., ltd.) is added, wherein the addition ratio of the fiber-grade polyester to the silver-series PET-based antibacterial master batch is 94:6.
when the fiber-grade polyamide is used as the raw material, the functional modifier for modifying the polymer component adopts conductive carbon black powder and tin-antimony doped TIO 2 A mixture of white conductive powder, mica and aluminum nitride; the specific adding method comprises the following steps: taking the fiber-grade polyamide as a raw material, and adding conductive carbon black powder (Hangzhou and Union) into the fiber-grade polyamide to prepare black PA 6-based conductive master batch, wherein the addition ratio of the fiber-grade polyamide to the conductive carbon black powder is 7:3, a step of; or the fiber-grade polyamide is used as a raw material, and tin-antimony doped TIO is added into the fiber-grade polyamide 2 The white PA 6-based conductive master batch is prepared from white conductive powder (Hangzhou and Union), wherein the fiber-grade polyamide is added with the white conductive powderThe input ratio is 35: 65. Or the fiber-grade polyamide is used as a raw material, mica (an ore product processing factory of Dongxin in the Ministry of Care) and aluminum nitride (a New material technology Co., ltd.) are added into the fiber-grade polyamide to prepare the PA 6-based cool modified master batch, wherein the addition ratio of the fiber-grade polyamide to the PA 6-based cool modified master batch is 92:8, 8; wherein the mass ratio of mica to aluminum nitride in the PA 6-based cool feeling modified master batch is 1:1, the addition ratio of the fiber-grade polyamide to mica to aluminum nitride is 8:2.
when the film is formed, the black conductive master batch and the black conductive master batch are used as one of the components, and 100 percent of the black conductive master batch is used; during antibacterial modification, 6% of antibacterial master batch is added into PET; in the case of the cool feeling modification, 8% cool feeling master batch was added to PA 6.
The beneficial effects of the invention are as follows: compared with the conventional spinning method, the method has the advantages that under the condition of the same inorganic powder content, the risk of pipeline blockage caused by the addition of inorganic functional materials can be reduced, and the stable production period is prolonged due to the short melt pipeline between the screw extruder and the die head and the short melt residence time during film production; and secondly, by adopting a polymer multilayer coextrusion method, the additive layer of the inorganic functional material can be flexibly designed, and the characteristics of antibiosis, electric conduction, cool feeling and the like can be realized according to different functional modifiers, so that the function of the filament bundle is stronger. Can be applied to special work clothes, protective clothing, window curtains, table mats and the like; the invention further comprises the steps of film forming, longitudinal drafting, slitting, stranding and winding, and further drafting on drafting equipment to obtain the flat functional yarn with the required specification.
Detailed Description
The invention is further described below by means of specific examples. Wherein:
intrinsic viscosity: according to GB/T14190-2015, phenol and tetrachloroethane 1:1 as solvent.
Relative viscosity: the standard test of FZ/T51004-2011 fiber grade polycaprolactam slices is adopted.
Breaking strength and elongation at break of the fiber: the fiber is tested according to the GBT-14344-2008 chemical fiber filament tensile property test method.
Boiling water shrinkage of the fiber: tested according to the GB/T6505-2017 test method.
Example 1
The preparation method of the multifunctional flat yarn of the embodiment comprises the following steps: 1) Preparation of pre-oriented flat tows: taking fiber-grade PET with the intrinsic viscosity of 0.685dL/g as an A component (odd layer) and black PET-based conductive master batch as a B component (even layer) (taking fiber-grade polyester as a raw material in the B component, and adding conductive carbon black powder into the B component to prepare black PET-based conductive master batch, wherein the adding amount ratio of the fiber-grade polyester to the conductive carbon black powder is 7:3); adopting a three-layer co-extrusion die head, controlling the temperature of each region of a PET component screw extruder to be 260-285 ℃, controlling the temperature of each region of a black PET base conductive master batch screw extruder to be 260-285 ℃, obtaining a composite film formed by alternately arranging two polymers, obtaining a pre-drawn film with the thickness of 60 mu m through longitudinal pre-drawing of 4 times and heat setting at 160 ℃, cutting the pre-drawn film into strips with a certain width by a slitting machine, simultaneously plying the strips according to the designed product specification, and winding and forming at the speed of 50m/min to obtain the pre-oriented functional flat yarn with the required linear density.
2) Preparation of flat drawn yarn: the pre-oriented functional flat yarn is prepared into a functional flat yarn with the specification of 22dtex/3f by setting the temperature of a hot plate to 90 ℃, the temperature of a hot plate to 180 ℃ and the drafting multiple to 1.50 and the processing speed to 300m/min on conventional drafting equipment (the main technological parameters and physical property tables are shown in Table 1, and Table 1 is a summary table of main technological parameters and physical property indexes).
In the embodiment, as the melt pipeline between the screw extruder and the die head is short and the residence time of the melt is short in film production, compared with the conventional spinning method, under the condition of the same inorganic powder content, the risk of pipeline blockage caused by the addition of inorganic functional materials can be reduced, and the stable production period is prolonged; and secondly, by adopting a polymer multilayer coextrusion method, an added layer of an inorganic functional material can be flexibly designed, and the embodiment mainly realizes the conductive characteristic according to different functional modifiers, so that the function of the filament bundle is stronger. Can be applied to special work clothes, protective clothing, window curtains, table mats and the like; in addition, the embodiment obtains the flat functional yarn with the required specification through film forming, longitudinal stretching, slitting, stranding and winding and further stretching on stretching equipment, and has the characteristics of stable product quality, good processability and strong product function.
Example 2
The preparation method of the multifunctional flat yarn of the embodiment comprises the following steps: 1) Preparation of pre-oriented flat tows: taking fiber-grade PET with the intrinsic viscosity of 0.685dL/g as an A component (odd layer) and white PET-based conductive master batch as a B component (even layer) (the B component takes fiber-grade polyester as a raw material, and white conductive powder doped with tin-antimony and TIO2 is added into the raw material to prepare white PET-based conductive master batch, wherein the addition ratio of the fiber-grade polyester to the white conductive powder is 35:65); adopting a five-layer coextrusion die head, controlling the temperature of each region of a PET component screw extruder to be 260-290 ℃, controlling the temperature of each region of a white PET base conductive master batch screw extruder to be 260-290 ℃, obtaining a composite film formed by alternately arranging two polymers, obtaining a pre-drawn film with the thickness of 45 mu m through longitudinal pre-drawing of 5 times and heat setting at 160 ℃, cutting the pre-drawn film into strips with certain width by a slitting machine, simultaneously plying the strips according to the designed product specification, and winding and forming at the speed of 100m/min to obtain the pre-oriented functional flat yarn with the required linear density.
2) Preparation of flat drawn yarn: the pre-oriented functional flat yarn is set to have a hot plate temperature of 85 ℃ and a hot plate temperature of 175 ℃ on conventional drawing equipment, the drawing multiple is 1.50, and the processing speed is 300m/min. Functional flat yarn with the specification of 33dtex/6f (main technological parameters and physical properties are shown in Table 1) is prepared.
In the embodiment, as the melt pipeline between the screw extruder and the die head is short and the residence time of the melt is short in film production, compared with the conventional spinning method, under the condition of the same inorganic powder content, the risk of pipeline blockage caused by the addition of inorganic functional materials can be reduced, and the stable production period is prolonged; and secondly, by adopting a polymer multilayer coextrusion method, an added layer of an inorganic functional material can be flexibly designed, and the conductive characteristic is realized according to different functional modifiers, so that the function of the filament bundle is stronger. Can be applied to special work clothes, protective clothing, window curtains, table mats and the like; in addition, the embodiment obtains the flat functional yarn with the required specification through film forming, longitudinal stretching, slitting, stranding and winding and further stretching on stretching equipment, and has the characteristics of stable product quality, good processability and strong product function.
Example 3
The preparation method of the multifunctional flat yarn of the embodiment comprises the following steps: 1) Preparation of pre-oriented flat tows: the PET-based antibacterial masterbatch is added into the fiber-grade PET with the intrinsic viscosity of 0.685dL/g to be a component A (odd layer) (the component A takes the fiber-grade polyester as a raw material, and silver-series PET-based antibacterial masterbatch is added into the fiber-grade PET, wherein the addition ratio of the fiber-grade polyester to the silver-series PET-based antibacterial masterbatch is 94:6); the fiber-grade PET with the intrinsic viscosity of 0.685dL/g is a component B (even layer), a three-layer coextrusion die head is adopted, the temperature of each region of a PET component screw extruder is controlled to be 260-285 ℃, the temperature of each region of the PET component screw extruder added with 6% PET-based antibacterial master batch is controlled to be 260-285 ℃, the temperature of the die head is 285 ℃, a composite film formed by alternately arranging two polymers is obtained, a pre-drawn film with the thickness of 30 mu m is obtained through 6 times of longitudinal pre-drawing and 160 ℃ heat setting, and then a slitting machine is used for slitting the pre-drawn film into filaments with certain width, and meanwhile, the filaments are stranded according to the designed product specification and are wound and formed at the speed of 150m/min, so that the pre-oriented functional flat filament with the required linear density is obtained.
2) Preparation of flat drawn yarn: the pre-oriented functional flat yarn is set to have a hot plate temperature of 80 ℃ and a hot plate temperature of 170 ℃ on conventional drawing equipment, the drawing multiple is 1.70, and the processing speed is 300m/min. A functional flat yarn with a specification of 165dtex/36f was produced (the main process parameters and physical properties are shown in Table 1).
In the embodiment, as the melt pipeline between the screw extruder and the die head is short and the residence time of the melt is short in film production, compared with the conventional spinning method, under the condition of the same inorganic powder content, the risk of pipeline blockage caused by the addition of inorganic functional materials can be reduced, and the stable production period is prolonged; and secondly, by adopting a polymer multilayer coextrusion method, an added layer of an inorganic functional material can be flexibly designed, and according to different functional modifiers, the antibacterial property is realized, so that the function of the filament bundle is stronger. Can be applied to special work clothes, protective clothing, window curtains, table mats and the like; in addition, the embodiment obtains the flat functional yarn with the required specification through film forming, longitudinal stretching, slitting, stranding and winding and further stretching on stretching equipment, and has the characteristics of stable product quality, good processability and strong product function.
Example 4
The preparation method of the multifunctional flat yarn of the embodiment comprises the following steps: 1) Preparation of pre-oriented flat tows: taking fiber-grade PA6 with relative viscosity of 2.40 as an A component (odd layer) and taking black PA 6-based conductive master batch as a B component (even layer) (the B component takes fiber-grade polyamide as a raw material, and conductive carbon black powder is added into the B component to prepare black PA 6-based conductive master batch, wherein the addition ratio of the fiber-grade polyamide to the conductive carbon black powder is 7:3); adopting a three-layer co-extrusion die head, controlling the temperature of each region of a PA6 component screw extruder to be 260-270 ℃, controlling the temperature of each region of a black PA6 base conductive master batch screw extruder to be 260-270 ℃, obtaining a composite film formed by alternately arranging two polymers, longitudinally pre-stretching 4 times and heat setting at 140 ℃, obtaining a pre-stretching film with the thickness of 60 mu m, then cutting into strips with a certain width by a slitting machine, simultaneously plying the strips according to the designed product specification, and winding and forming at the speed of 50m/min to obtain the pre-oriented functional flat yarn with the required linear density.
2) Preparation of flat drawn yarn: the pre-oriented functional flat yarn is set to have a hot plate temperature of 60 ℃ and a hot plate temperature of 160 ℃ on conventional drawing equipment, the drawing multiple is 1.40, and the processing speed is 300m/min. Functional flat yarn with the specification of 22dtex/3f (the main technological parameters and physical properties are shown in Table 1) is prepared.
In the embodiment, as the melt pipeline between the screw extruder and the die head is short and the residence time of the melt is short in film production, compared with the conventional spinning method, under the condition of the same inorganic powder content, the risk of pipeline blockage caused by the addition of inorganic functional materials can be reduced, and the stable production period is prolonged; and secondly, by adopting a polymer multilayer coextrusion method, an added layer of an inorganic functional material can be flexibly designed, and the conductive characteristic is realized according to different functional modifiers, so that the function of the filament bundle is stronger. Can be applied to special work clothes, protective clothing, window curtains, table mats and the like; in addition, the embodiment obtains the flat functional yarn with the required specification through film forming, longitudinal stretching, slitting, stranding and winding and further stretching on stretching equipment, and has the characteristics of stable product quality, good processability and strong product function.
Example 5
The preparation method of the multifunctional flat yarn of the embodiment comprises the following steps: 1) Preparation of pre-oriented flat tows: fiber-grade PA6 with relative viscosity of 2.40 is used as an A component (odd layer), white PA 6-based conductive master batch is used as a B component (even layer) (the B component takes fiber-grade polyamide as raw material, and tin-antimony doped TIO is added into the raw material 2 The white conductive powder of (2) is prepared into white PA 6-based conductive master batch, wherein the addition ratio of the fiber-grade polyamide to the white conductive powder is 35:65 A) is provided; adopting a five-layer coextrusion die head, controlling the temperature of each region of a PA6 component screw extruder to be 260-270 ℃, controlling the temperature of each region of a white PA6 base conductive master batch screw extruder to be 260-275 ℃, obtaining a composite film formed by alternately arranging two polymers, obtaining a pre-drawn film with the thickness of 45 mu m through longitudinal pre-drawing of 5 times and heat setting at 140 ℃, then cutting the pre-drawn film into strips with a certain width by a slitting machine, simultaneously plying the strips according to the designed product specification, and winding and forming at the speed of 100m/min to obtain the pre-oriented functional flat yarn with the required linear density.
2) Preparation of flat drawn yarn: the pre-oriented functional flat yarn is set to have a hot plate temperature of 55 ℃ and a hot plate temperature of 155 ℃ on conventional drawing equipment, the drawing multiple is 1.40, and the processing speed is 300m/min. Functional flat yarn with the specification of 33dtex/6f (main technological parameters and physical properties are shown in Table 1) is prepared.
In the embodiment, as the melt pipeline between the screw extruder and the die head is short and the residence time of the melt is short in film production, compared with the conventional spinning method, the method can be used for a long time under the condition of the same inorganic powder content; and secondly, by adopting a polymer multilayer coextrusion method, an added layer of an inorganic functional material can be flexibly designed, and the conductive characteristic is realized according to different functional modifiers, so that the function of the filament bundle is stronger. Can be applied to special work clothes, protective clothing, window curtains, table mats and the like; in addition, the embodiment obtains the flat functional yarn with the required specification through film forming, longitudinal stretching, slitting, stranding and winding and further stretching on stretching equipment, and has the characteristics of stable product quality, good processability and strong product function.
Example 6
The preparation method of the multifunctional flat yarn of the embodiment comprises the following steps: 1) Preparation of pre-oriented flat tows: the method comprises the steps of respectively adding PA 6-based cool modified master batches into fiber-grade PA6 with relative viscosity of 2.40 to obtain an A component (odd layer) (wherein the A component takes fiber-grade polyamide as a raw material, mica and aluminum nitride are added into the A component to obtain PA 6-based cool modified master batches, the addition ratio of the fiber-grade polyamide to the PA 6-based cool modified master batches is 92:8, the mass ratio of the mica to the aluminum nitride in the PA 6-based cool modified master batches is 1:1, and the addition ratio of the fiber-grade polyamide to the mica to the aluminum nitride is 8:2); the fiber-grade PA6 with the relative viscosity of 2.40 is a B component (even layer), a three-layer coextrusion die head is adopted, the temperature of each region of a PET component screw extruder is controlled to be 260-270 ℃, the temperature of each region of the PA6 component screw extruder with the addition of 8% of PA6-based cool modified master batch in the PA6 is controlled to be 260-270 ℃, the temperature of the die head is 270 ℃, a composite film formed by alternately arranging two polymers is obtained, a pre-drawn film with the thickness of 30 mu m is obtained through 6 times of longitudinal pre-drawing and heat setting at 140 ℃, and then a sliver with a certain width is cut by a sliver separator, meanwhile, the sliver is stranded according to the designed product specification, and then the sliver is coiled and formed at the speed of 150m/min, so that the pre-oriented functional flat yarn with the required linear density is obtained.
2) Preparation of flat drawn yarn: the pre-oriented functional flat yarn is set to have a hot plate temperature of 50 ℃ and a hot plate temperature of 150 ℃ on conventional drawing equipment, the drawing multiple is 1.60, and the processing speed is 300m/min. Functional flat yarn with a specification of 83dtex/24f was produced (main process parameters and physical properties are shown in Table 1).
In the embodiment, as the melt pipeline between the screw extruder and the die head is short and the residence time of the melt is short in film production, compared with the conventional spinning method, under the condition of the same inorganic powder content, the risk of pipeline blockage caused by the addition of inorganic functional materials can be reduced, and the stable production period is prolonged; and secondly, by adopting a polymer multilayer coextrusion method, an added layer of an inorganic functional material can be flexibly designed, and the cool feel characteristic is realized according to different functional modifiers, so that the function of the filament bundle is stronger. Can be applied to special work clothes, protective clothing, window curtains, table mats and the like; in addition, the embodiment obtains the flat functional yarn with the required specification through film forming, longitudinal stretching, slitting, stranding and winding and further stretching on stretching equipment, and has the characteristics of stable product quality, good processability and strong product function.
Claims (3)
1. The preparation method of the multifunctional flat yarn is characterized by comprising the following steps of:
1) Preparation of pre-oriented flat tows: taking fiber-grade polyester or polyamide as a raw material; adopting a three-layer or five-layer co-extrusion die head, and arranging two single-screw extruders, so that an odd layer is used as a component A, and an even layer is used as a component B; wherein a functional modifier for modifying the polymer component is added in the component A or the component B; controlling the temperature of each region of a A, B two-component screw extruder to be 250-290 ℃ in the running process of the extruder, controlling the temperature of a die head to be 270-290 ℃ to obtain a composite film, obtaining a pre-drawn film with the thickness of 30-60 mu m through longitudinal pre-drawing of 4-6 times and heat setting at 140-160 ℃, slitting the film into filaments by a slitting machine, stranding the filaments according to the designed product specification, and winding and forming the filaments at the speed of 50-150 m/min to obtain the pre-oriented functional flat filaments with the required linear density;
2) Preparation of flat drawn yarn: the pre-oriented functional flat yarn is arranged on conventional drawing equipment, the temperature of a hot plate is set to be 50-90 ℃, the temperature of a hot plate is set to be 150-180 ℃, the drawing multiple is set to be 1.40-1.70, and the processing speed is set to be 300m/min, so that the functional flat yarn with the specification of 22-165 dtex/3-36 f is prepared.
2. The method of making a multi-functional flat yarn according to claim 1 wherein said fiber grade polyester is polyethylene terephthalate having an intrinsic viscosity of 0.685±0.01 dL/g; the fiber-grade polyamide adopts polyamide 6 with the relative viscosity of 2.4+/-0.03.
3. The method for preparing a multifunctional flat yarn according to claim 1, wherein the functional modifier for modifying the polymer component is conductive carbon black powder and tin-antimony doped TIO when the fiber-grade polyester is used as a raw material 2 White conductive powder and silver PET-based antibacterial master batch; the specific adding method comprises the following steps: the black PET-based conductive master batch is prepared by taking the fiber-grade polyester as a raw material and adding conductive carbon black powder, wherein the adding amount ratio of the fiber-grade polyester to the conductive carbon black powder is 7:3, a step of; or the fiber-grade polyester is used as a raw material, and tin-antimony doped TIO is added into the fiber-grade polyester 2 The white conductive powder of (2) is prepared into white PET-based conductive master batch, wherein the adding amount ratio of the fiber-grade polyester to the white conductive powder is 35: 65. Or the fiber-grade polyester is used as a raw material, silver-series PET-based antibacterial master batch is added into the fiber-grade polyester, wherein the addition ratio of the fiber-grade polyester to the silver-series PET-based antibacterial master batch is 94:6, preparing a base material;
when the fiber-grade polyamide is used as the raw material, the functional modifier for modifying the polymer component adopts conductive carbon black powder and tin-antimony doped TIO 2 A mixture of white conductive powder, mica and aluminum nitride; the specific adding method comprises the following steps: taking the fiber-grade polyamide as a raw material, and adding conductive carbon black powder into the raw material to prepare a black PA 6-based conductive master batch, wherein the addition ratio of the fiber-grade polyamide to the conductive carbon black powder is 7:3, a step of; or the fiber-grade polyamide is used as a raw material, and tin-antimony doped TIO is added into the fiber-grade polyamide 2 The white conductive powder of (2) is prepared into white PA 6-based conductive master batch, wherein the addition ratio of the fiber-grade polyamide to the white conductive powder is 35: 65. Or the fiber-grade polyamide is used as a raw material, and mica and aluminum nitride are added into the raw materialThe PA 6-based cool feeling modified master batch is prepared, wherein the addition ratio of the fiber-grade polyamide to the PA 6-based cool feeling modified master batch is 92:8, 8; wherein the mass ratio of mica to aluminum nitride in the PA 6-based cool feeling modified master batch is 1:1, the addition ratio of the fiber-grade polyamide to mica to aluminum nitride is 8:2.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1389371A (en) * | 1963-04-18 | 1965-02-12 | Du Pont | Polyamide textile fiber improvements |
| CN1319686A (en) * | 2001-03-23 | 2001-10-31 | 甘国工 | Composite high-strength single directional drawing oriented polymer flat filament and making method thereof |
| JP2006274468A (en) * | 2005-03-29 | 2006-10-12 | Kuraray Co Ltd | Fiber sheet for contacting with human skin |
| CN101200826A (en) * | 2007-12-25 | 2008-06-18 | 吴江丝绸股份有限公司化纤厂 | Method and device for manufacturing fully drawn yarn/pre-oriented yarn stranding composite yarn by one-step process |
| DE102008059008A1 (en) * | 2008-11-25 | 2010-05-27 | Oerlikon Textile Gmbh & Co. Kg | Method and device for producing rope-shaped goods |
| CN103871549A (en) * | 2014-03-03 | 2014-06-18 | 常州科孚新材料有限公司 | High-intensity composite conducting flat wire |
| JP2016069754A (en) * | 2014-09-30 | 2016-05-09 | 東レ株式会社 | Laminate film for decorative yarn, and decorative yarn including the same |
| CN105839209A (en) * | 2016-05-25 | 2016-08-10 | 浙江古纤道股份有限公司 | Process for processing same-spinneret bi-color ultrafine composite polyester fibers |
| CN206561581U (en) * | 2017-03-13 | 2017-10-17 | 湖北华利塑业股份有限公司 | A kind of Polywoven Bag wire drawing machine |
| CN110373745A (en) * | 2019-08-23 | 2019-10-25 | 温州大学 | High-intensitive co-blended spinning polyester fiber and high-intensitive dress materials |
| CN110528131A (en) * | 2019-09-20 | 2019-12-03 | 常州华福环境科技股份有限公司 | A kind of manufacturing process of high intensity low friction polytetrafluoroethylene (PTFE) sewing thread |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040084802A1 (en) * | 2002-11-02 | 2004-05-06 | Morin Brian G. | Method of producing low-shrink polypropylene tape fibers comprising high amounts of nucleating agents |
-
2021
- 2021-10-18 CN CN202111212530.9A patent/CN114103188B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1389371A (en) * | 1963-04-18 | 1965-02-12 | Du Pont | Polyamide textile fiber improvements |
| CN1319686A (en) * | 2001-03-23 | 2001-10-31 | 甘国工 | Composite high-strength single directional drawing oriented polymer flat filament and making method thereof |
| JP2006274468A (en) * | 2005-03-29 | 2006-10-12 | Kuraray Co Ltd | Fiber sheet for contacting with human skin |
| CN101200826A (en) * | 2007-12-25 | 2008-06-18 | 吴江丝绸股份有限公司化纤厂 | Method and device for manufacturing fully drawn yarn/pre-oriented yarn stranding composite yarn by one-step process |
| DE102008059008A1 (en) * | 2008-11-25 | 2010-05-27 | Oerlikon Textile Gmbh & Co. Kg | Method and device for producing rope-shaped goods |
| CN103871549A (en) * | 2014-03-03 | 2014-06-18 | 常州科孚新材料有限公司 | High-intensity composite conducting flat wire |
| JP2016069754A (en) * | 2014-09-30 | 2016-05-09 | 東レ株式会社 | Laminate film for decorative yarn, and decorative yarn including the same |
| CN105839209A (en) * | 2016-05-25 | 2016-08-10 | 浙江古纤道股份有限公司 | Process for processing same-spinneret bi-color ultrafine composite polyester fibers |
| CN206561581U (en) * | 2017-03-13 | 2017-10-17 | 湖北华利塑业股份有限公司 | A kind of Polywoven Bag wire drawing machine |
| CN110373745A (en) * | 2019-08-23 | 2019-10-25 | 温州大学 | High-intensitive co-blended spinning polyester fiber and high-intensitive dress materials |
| CN110528131A (en) * | 2019-09-20 | 2019-12-03 | 常州华福环境科技股份有限公司 | A kind of manufacturing process of high intensity low friction polytetrafluoroethylene (PTFE) sewing thread |
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