CN111139638B - Composite polyester filament yarn and processing method thereof - Google Patents

Composite polyester filament yarn and processing method thereof Download PDF

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Publication number
CN111139638B
CN111139638B CN201911418190.8A CN201911418190A CN111139638B CN 111139638 B CN111139638 B CN 111139638B CN 201911418190 A CN201911418190 A CN 201911418190A CN 111139638 B CN111139638 B CN 111139638B
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flame
polyester filament
filament yarn
layer
retardant layer
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CN111139638A (en
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叶玮
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Jw New Fiber Technology Industrial Co ltd
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Jw New Fiber Technology Industrial Co ltd
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
    • D06M11/70—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
    • D06M11/71—Salts of phosphoric acids
    • 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
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D02G3/404—Yarns or threads coated with polymeric solutions
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
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    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/08—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with halogenated hydrocarbons
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    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
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    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/35—Heterocyclic compounds
    • D06M13/355—Heterocyclic compounds having six-membered heterocyclic rings
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    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
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    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • D06M15/233—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated aromatic, e.g. styrene
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    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
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    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/41—Phenol-aldehyde or phenol-ketone resins
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    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/63—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing sulfur in the main chain, e.g. polysulfones
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    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
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    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/30—Flame or heat resistance, fire retardancy properties

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Multicomponent Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

The invention belongs to the technical field of fiber filament structures, and particularly relates to a composite polyester filament and a processing method thereof. The invention achieves the aim of effectively processing and producing the composite polyester filament yarn by coating the adhesive layer on the polyester filament yarn main body and then coating the flame retardant layer. The invention has the advantages that the three-layer type composite polyester filament yarn has stable structure, the cross-linking structural strength of the flame-retardant layer and the bonding layer is high, the flame-retardant layer is not easy to fall off, the flame-retardant effect of the flame-retardant layer is good, the processing method is reasonable and efficient, the laminating mode of the upper roller and the lower roller is simple and effective, and the lasting flame-retardant effect of the composite polyester filament yarn is finally ensured.

Description

Composite polyester filament yarn and processing method thereof
Technical Field
The invention belongs to the technical field of fiber filament structures, and particularly relates to a composite polyester filament and a processing method thereof.
Background
Compound polyester filament refers to on polyester filament basis, and the multilayer structure polyester filament of additional functions such as compound fire-retardant, and its structure generally only includes the long filament main part to and fire-retardant layer, but on the other hand, the two-layer type structure of current long filament main part plus fire-retardant layer, has the problem that fire-retardant layer drops easily, consequently urgently needs a compound intensity height on the market, and fire-retardant effect is good novel fire-retardant compound polyester filament.
The patent publication No. CN 205115687U, chinese utility model patent of publication date 2016.03.30 discloses a flame-retardant breathable composite filament, which comprises an inner core and an outer layer, wherein the inner core is composed of a terylene fiber with a cross-shaped section and a plurality of nylon fibers with a circular section, the nylon fibers are positioned at gaps of the outer edges of the terylene fibers, a cavity convenient for air circulation is arranged in the center of the terylene fibers, and the end point parts of the terylene fibers are arc-shaped parts; the outer layer is a flame-retardant layer coated outside the inner core.
However, the composite filament in the utility model has the problem that the flame-retardant layer is easy to fall off.
Disclosure of Invention
The invention provides a composite polyester filament yarn and a processing method thereof, which can achieve the aim of effectively processing and producing the composite polyester filament yarn by coating an adhesive layer on a polyester filament yarn main body and then coating a flame retardant layer. The invention has the advantages that the three-layer type composite polyester filament yarn has stable structure, the cross-linking structural strength of the flame-retardant layer and the bonding layer is high, the flame-retardant layer is not easy to fall off, the flame-retardant effect of the flame-retardant layer is good, the processing method is reasonable and efficient, the laminating mode of the upper roller and the lower roller is simple and effective, and the lasting flame-retardant effect of the composite polyester filament yarn is finally ensured.
The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a compound polyester filament, includes the polyester filament main part, is located tie coat in the polyester filament main part, and be located the fire-retardant layer in the tie coat outside, the material of tie coat includes allyl methacrylate, ethyl acetate, nanometer titanium dioxide powder and butadiene styrene copolymer, the material on fire-retardant layer includes trichlorobromomethane, polyphenylene sulfide, piperazine-ammonium polyphosphate and boron phenol-formaldehyde resin.
In the invention, the allyl methacrylate and the ethyl acetate in the bonding layer ensure basic bonding strength, the nano titanium dioxide powder is used as a supporting filler, the structural strength of the bonding layer can be ensured, the bonding layer is prevented from being too soft to bear the later rolling operation, and finally the butadiene styrene copolymer which is a thermoplastic elastomer ensures the thermoplastic curing effect of the bonding layer.
In addition, in the flame-retardant layer, the trichlorobromomethane, the polyphenylene sulfide and the piperazine-ammonium polyphosphate have good flame-retardant effect, and the boron phenolic resin has the adhesive property of resin and the flame retardance of the modified boron element, so that the forming curing and flame-retardant effect of the flame-retardant layer can be further ensured.
And finally, the bonding layer is bonded with the polyester filament main body inwards and the flame-retardant layer outwards, and compared with a mode that the flame-retardant layer with lower viscosity is directly combined with the polyester filament main body, the invention has the advantage that the bonding and fixing strength of the flame-retardant layer is higher.
The further preferable technical scheme is that the bonding layer comprises the following components in parts by weight: 15-35 parts of allyl methacrylate powder, 1-6 parts of ethyl acetate, 1-3 parts of nano titanium dioxide powder and 25-28 parts of butadiene styrene copolymer.
The further preferable technical scheme is that the bonding layer comprises the following components in parts by weight: 20-35 parts of trichlorobromomethane, 7-12 parts of polyphenylene sulfide, 5-7 parts of piperazine-ammonium polyphosphate and 11-19 parts of boron phenolic resin.
The further preferred technical scheme is as follows: the length-diameter ratio of the polyester filament yarn main body is 1200-1500, and the sum of the thicknesses of the bonding layer and the flame-retardant layer is 15-44nm.
The further preferred technical scheme is as follows: the breaking strength of the composite polyester filament yarn is 3.9-6.0cN/dtex, and the elongation at break is 30-55%.
In the invention, the composite polyester filament yarn has the advantage of high rupture strength on the basis of good flame retardant effect, and the toughness and durability of the composite polyester filament yarn are ensured.
A processing method of composite polyester filament yarn sequentially comprises the following steps:
s1, preparing materials of a bonding layer and a flame-retardant layer respectively;
s2, enabling the polyester filament yarn main body to penetrate through the bonding layer material, and drying and shaping to obtain a layer of composite filament yarn;
s3, enabling the layer-type composite filament to pass through the flame-retardant layer material, and rolling to obtain an intermediate composite filament; (ii) a
And S4, enabling the intermediate composite filament to pass through the material of the flame-retardant layer for the second time, and drying and shaping to obtain the final composite polyester filament.
In the invention, the bonding layer and the flame-retardant layer are coated on the surface in a manner that the polyester filaments penetrate in and out, so that the surface coating action is completed, the advantages of rapidness and high efficiency are achieved, and the stability of the shaping structure can be ensured in a manner of internal and external batch drying.
In addition, fire-retardant layer carries out the crushing operation before the stoving, for exactly press fire-retardant layer material part into in the binder, guarantee the crosslinked compactness of two-layer structure, finally reach the difficult problem that drops of fire-retardant layer for a long time.
The further preferred technical scheme is as follows: in the step S1, the stirring and mixing temperature of the bonding layer is 45-65 ℃, the stirring speed is 120-150r/min, and the stirring and mixing time is 15-65min; the stirring and mixing temperature of the flame-retardant layer is 85-112 ℃, and the flame-retardant layer material is obtained by cooling to room temperature at the speed of 15-18 ℃/min after stirring and mixing.
The further preferred technical scheme is as follows: in the step S2, the drying and setting temperature of the bonding layer is 75-95 ℃, and the setting time is 25-35min.
The further preferred technical scheme is as follows: in the step S3, the pressing and grinding operation adopts an upper roller type and a lower roller type pressing mode, the minimum distance between the upper roller and the lower roller is 75-85% of the total diameter length of the terylene filament main body with the bonding layer, and the pressure is 155-165kg/m 2 And standing the flame-retardant layer material for 15-25min after coating, and then performing a rolling operation, wherein 15-16% of the thickness of the flame-retardant layer is pressed into the bonding layer to form a blending transition zone.
In this embodiment, after the adhesive layer is dried, cured and molded, the inner structure of the adhesive layer is still porous, so that the materials of the flame-retardant layer are pressed into the adhesive layer by the upper and lower rollers under the condition of proper compression, a transition area of the flame-retardant layer on the adhesive layer is generated, and finally the flame-retardant layer is not easy to peel off from the adhesive layer, which cannot be achieved by the conventional method of directly coating the flame-retardant material on the fiber filament.
The further preferred technical scheme is as follows: and S4, drying and setting the flame-retardant layer at 85-95 ℃, and cooling to room temperature after drying to obtain the composite polyester filament yarn.
The invention achieves the aim of effectively processing and producing the composite polyester filament yarn by coating the adhesive layer on the polyester filament yarn main body and then coating the flame retardant layer. The invention has the advantages that the three-layer type composite polyester filament yarn has stable structure, the cross-linking structural strength of the flame-retardant layer and the bonding layer is high, the flame-retardant layer is not easy to fall off, the flame-retardant effect of the flame-retardant layer is good, the processing method is reasonable and efficient, the laminating mode of the upper roller and the lower roller is simple and effective, and the lasting flame-retardant effect of the composite polyester filament yarn is finally ensured.
Detailed Description
The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.
Example 1
The utility model provides a compound polyester filament, includes the polyester filament main part, is located tie coat in the polyester filament main part, and be located the fire-retardant layer in the tie coat outside, the material of tie coat includes allyl methacrylate, ethyl acetate, nanometer titanium dioxide powder and butadiene styrene copolymer, the material on fire-retardant layer includes trichlorobromomethane, polyphenylene sulfide, piperazine-ammonium polyphosphate and boron phenolic resin.
The bonding layer comprises the following components in parts by weight: 15 parts of allyl methacrylate powder, 2 parts of ethyl acetate, 1 part of nano titanium dioxide powder and 25 parts of butadiene styrene copolymer.
The bonding layer comprises the following components in parts by weight: 20 parts of bromotrichloromethane, 11 parts of polyphenylene sulfide, 5 parts of piperazine-ammonium polyphosphate and 16 parts of boron phenolic resin.
The length-diameter ratio of the polyester filament yarn main body is 1200, and the sum of the thicknesses of the bonding layer and the flame-retardant layer is 15nm.
The breaking strength of the composite polyester filament is 3.9cN/dtex, and the elongation at break is 35%.
A processing method of composite polyester filament yarn sequentially comprises the following steps:
s1, preparing materials of a bonding layer and a flame-retardant layer respectively;
s2, enabling the polyester filament yarn main body to penetrate through the bonding layer material, and drying and shaping to obtain a layer of composite filament yarn;
s3, enabling the layer-type composite filament to pass through the flame-retardant layer material, and rolling to obtain an intermediate composite filament;
and S4, enabling the intermediate composite filament to pass through the flame-retardant layer material for the second time, and drying and shaping to obtain the final composite polyester filament.
In the step S1, the stirring and mixing temperature of the bonding layer is 45 ℃, the stirring speed is 130r/min, and the stirring and mixing time is 15min; and the stirring and mixing temperature of the flame-retardant layer is 90 ℃, and the flame-retardant layer material is obtained by cooling to room temperature at the speed of 15 ℃/min after stirring and mixing.
In the step S2, the drying and setting temperature of the bonding layer is 75 ℃, and the setting time is 25min.
In the step S3, the pressing and grinding operation adopts an upper roller type and a lower roller type pressing mode, the minimum distance between the upper roller and the lower roller is 75 percent of the total diameter length of the terylene filament main body with the bonding layer, and the pressure is 155kg/m 2 And standing the flame-retardant layer material for 15min after coating, and then performing a rolling operation, wherein 15% of the thickness of the flame-retardant layer is pressed into the bonding layer to form a blending transition zone.
And S4, drying and setting the flame-retardant layer at 90 ℃, and cooling to room temperature after drying to obtain the composite polyester filament.
In the embodiment, the finally obtained composite polyester filament yarn has the advantages of good flame retardant effect, V-0 level, difficult separation and falling of the flame retardant layer and the whole three-layer structure, and long effective flame retardant time.
Example 2
The utility model provides a compound polyester filament, includes the polyester filament main part, is located tie coat in the polyester filament main part, and be located the fire-retardant layer in the tie coat outside, the material of tie coat includes allyl methacrylate, ethyl acetate, nanometer titanium dioxide powder and butadiene styrene copolymer, the material on fire-retardant layer includes trichlorobromomethane, polyphenylene sulfide, piperazine-ammonium polyphosphate and boron phenol-formaldehyde resin.
The bonding layer comprises the following components in parts by weight: 20 parts of allyl methacrylate powder, 2 parts of ethyl acetate, 2 parts of nano titanium dioxide powder and 26 parts of butadiene styrene copolymer.
The bonding layer comprises the following components in parts by weight: 30 parts of trichlorobromomethane, 11 parts of polyphenylene sulfide, 5 parts of piperazine-ammonium polyphosphate and 18 parts of boron phenolic resin.
The length-diameter ratio of the polyester filament yarn main body is 1300, and the sum of the thicknesses of the bonding layer and the flame-retardant layer is 35nm.
The breaking strength of the composite polyester filament is 5.0cN/dtex, and the elongation at break is 40%.
A processing method of composite polyester filament yarn sequentially comprises the following steps:
s1, preparing materials of a bonding layer and a flame-retardant layer respectively;
s2, enabling the polyester filament yarn main body to penetrate through the bonding layer material, and drying and shaping to obtain a layer of composite filament yarn;
s3, enabling the layer-type composite filament to pass through the flame-retardant layer material, and rolling to obtain an intermediate composite filament;
and S4, enabling the intermediate composite filament to pass through the flame-retardant layer material for the second time, and drying and shaping to obtain the final composite polyester filament.
In the step S1, the stirring and mixing temperature of the bonding layer is 65 ℃, the stirring speed is 140r/min, and the stirring and mixing time is 55min; and the stirring and mixing temperature of the flame-retardant layer is 100 ℃, and the flame-retardant layer material is obtained by cooling to room temperature at the speed of 15 ℃/min after stirring and mixing.
In the step S2, the drying and setting temperature of the bonding layer is 85 ℃, and the setting time is 30min.
In the step S3, the pressing and grinding operation adopts an upper roller type and a lower roller type pressing mode, the minimum distance between the upper roller and the lower roller is 75 percent of the total diameter length of the terylene filament main body with the bonding layer, and the pressure is 160kg/m 2 And standing the flame-retardant layer material for 25min after coating, and then performing a rolling operation, wherein 15% of the thickness of the flame-retardant layer is pressed into the bonding layer to form a blending transition zone.
And S4, drying and setting the flame-retardant layer at 90 ℃, and cooling to room temperature after drying to obtain the composite polyester filament.
In the embodiment, the finally obtained composite polyester filament yarn has the advantages of good flame retardant effect, V-0 level, difficult separation and falling of the flame retardant layer and the whole three-layer structure, and long effective flame retardant time.
Example 3
The utility model provides a compound polyester filament, includes the polyester filament main part, is located tie coat in the polyester filament main part, and be located the fire-retardant layer in the tie coat outside, the material of tie coat includes allyl methacrylate, ethyl acetate, nanometer titanium dioxide powder and butadiene styrene copolymer, the material on fire-retardant layer includes trichlorobromomethane, polyphenylene sulfide, piperazine-ammonium polyphosphate and boron phenol-formaldehyde resin.
The bonding layer comprises the following components in parts by weight: 30 parts of allyl methacrylate powder, 2 parts of ethyl acetate, 2 parts of nano titanium dioxide powder and 28 parts of butadiene styrene copolymer.
The bonding layer comprises the following components in parts by weight: 35 parts of bromotrichloromethane, 11 parts of polyphenylene sulfide, 7 parts of piperazine-ammonium polyphosphate and 19 parts of boron phenolic resin.
The length-diameter ratio of the polyester filament main body is 1500, and the sum of the thicknesses of the bonding layer and the flame-retardant layer is 44nm.
The breaking strength of the composite polyester filament is 5.0cN/dtex, and the elongation at break is 50%.
A processing method of composite polyester filament yarn sequentially comprises the following steps:
s1, preparing materials of a bonding layer and a flame-retardant layer respectively;
s2, enabling the polyester filament yarn main body to penetrate through the bonding layer material, and drying and shaping to obtain a layer of composite filament yarn;
s3, enabling the layer-type composite filament to pass through the flame-retardant layer material, and rolling to obtain an intermediate composite filament;
and S4, enabling the intermediate composite filament to pass through the material of the flame-retardant layer for the second time, and drying and shaping to obtain the final composite polyester filament.
In the step S1, the stirring and mixing temperature of the bonding layer is 65 ℃, the stirring speed is 140r/min, and the stirring and mixing time is 65min; and the stirring and mixing temperature of the flame-retardant layer is 100 ℃, and the flame-retardant layer material is obtained by cooling to room temperature at the speed of 85 ℃/min after stirring and mixing.
In the step S2, the drying and setting temperature of the bonding layer is 95 ℃, and the setting time is 35min.
In the step S3, the crushing operation adopts an upper roller and lower roller type compaction mode, the minimum distance between the upper roller and the lower roller is 80 percent of the total diameter length of the main body of the polyester filament yarn with the bonding layer, and the pressure is 160kg/m 2 And standing the flame-retardant layer material for 25min after coating, and then performing a rolling operation, wherein 65% of the thickness of the flame-retardant layer is pressed into the bonding layer to form a blending transition zone.
And S4, drying and setting the flame-retardant layer at 95 ℃, and cooling to room temperature after drying to obtain the composite polyester filament yarn.
In the embodiment, the finally obtained composite polyester filament yarn has the advantages of good flame retardant effect, V-0 level, difficult separation and falling of the flame retardant layer and the whole three-layer structure, and long effective flame retardant time.
While the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. These are non-inventive modifications that fall within the scope of the claims of the present invention, which are protected by the patent statutes.

Claims (5)

1. A composite polyester filament yarn is characterized in that: comprises a polyester filament main body, a bonding layer positioned on the polyester filament main body and a flame-retardant layer positioned outside the bonding layer, wherein the materials of the bonding layer comprise allyl methacrylate, ethyl acetate, nano titanium dioxide powder and butadiene styrene copolymer, the materials of the flame-retardant layer comprise trichlorobromomethane, polyphenylene sulfide, piperazine-ammonium polyphosphate and boron phenolic resin,
the breaking strength of the composite polyester filament is 3.9-6.0cN/dtex, the elongation at break is 30-55%,
the processing method of the composite polyester filament yarn sequentially comprises the following steps:
s1, preparing materials of a bonding layer and a flame-retardant layer respectively;
s2, enabling the polyester filament yarn main body to penetrate through the bonding layer material, and drying and shaping to obtain a layer of composite filament yarn;
s3, enabling the layer-type composite filament to pass through the flame-retardant layer material, and rolling to obtain an intermediate composite filament;
s4, enabling the intermediate composite filament yarn to pass through the flame-retardant layer material for the second time, drying and shaping to obtain the final composite polyester filament yarn,
in the step S3, the crushing operation adopts an upper roller and lower roller type compaction mode, the minimum distance between the upper roller and the lower roller is 75-85% of the total diameter length of the polyester filament main body with the bonding layer, and the pressure is 155-165kg/m 2 Standing for 15-25min after the flame-retardant layer material is coated, then performing a rolling operation, wherein 15-16% of the thickness of the flame-retardant layer is pressed into the bonding layer to form a blending transition zone,
the bonding layer comprises the following components in parts by weight: 15-35 parts of allyl methacrylate, 1-6 parts of ethyl acetate, 1-3 parts of nano titanium dioxide powder and 25-28 parts of butadiene styrene copolymer,
the flame-retardant layer comprises the following components in parts by weight: 20-35 parts of trichlorobromomethane, 7-12 parts of polyphenylene sulfide, 5-7 parts of piperazine-ammonium polyphosphate and 11-19 parts of boron phenolic resin.
2. The composite polyester filament yarn as claimed in claim 1, wherein: the length-diameter ratio of the polyester filament yarn main body is 1200-1500, and the sum of the thicknesses of the bonding layer and the flame-retardant layer is 15-44nm.
3. The composite polyester filament yarn according to claim 1, characterized in that: in the step S1, the stirring and mixing temperature of the bonding layer is 45-65 ℃, the stirring speed is 120-150r/min, and the stirring and mixing time is 15-65min; the stirring and mixing temperature of the flame-retardant layer is 85-112 ℃, and the flame-retardant layer material is obtained by cooling to room temperature at the speed of 15-18 ℃/min after stirring and mixing.
4. The composite polyester filament yarn as claimed in claim 1, wherein: in the step S2, the drying and shaping temperature of the bonding layer is 75-95 ℃, and the shaping time is 25-35min.
5. The composite polyester filament yarn as claimed in claim 1, wherein: and S4, drying and setting the flame-retardant layer at 85-95 ℃, and cooling to room temperature after drying to obtain the composite polyester filament yarn.
CN201911418190.8A 2019-12-31 2019-12-31 Composite polyester filament yarn and processing method thereof Active CN111139638B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2048073U (en) * 1988-05-18 1989-11-22 夏培根 Non-woven filament winding and knitting machine
CN202116764U (en) * 2011-06-09 2012-01-18 福建百宏聚纤科技实业有限公司 Inflaming retarding polyester filament
CN103496221A (en) * 2013-10-22 2014-01-08 哈建薇 Corrosion-resistance, fireproof and wear-resistance cloth
KR20190110806A (en) * 2018-03-21 2019-10-01 주식회사 쏠텍 Master batch of graphene poly proplene fabric and graphene pp staple fiber using the master batch, and manufacturing method thereof
CN110450483A (en) * 2019-07-25 2019-11-15 浙江青松轻纺股份有限公司 A kind of fire-retardant fleece fabric of island composite terylene

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2048073U (en) * 1988-05-18 1989-11-22 夏培根 Non-woven filament winding and knitting machine
CN202116764U (en) * 2011-06-09 2012-01-18 福建百宏聚纤科技实业有限公司 Inflaming retarding polyester filament
CN103496221A (en) * 2013-10-22 2014-01-08 哈建薇 Corrosion-resistance, fireproof and wear-resistance cloth
KR20190110806A (en) * 2018-03-21 2019-10-01 주식회사 쏠텍 Master batch of graphene poly proplene fabric and graphene pp staple fiber using the master batch, and manufacturing method thereof
CN110450483A (en) * 2019-07-25 2019-11-15 浙江青松轻纺股份有限公司 A kind of fire-retardant fleece fabric of island composite terylene

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