CN113913995A - Piece-dyed elastic wool fabric of modified polyester composite filament and preparation method thereof - Google Patents
Piece-dyed elastic wool fabric of modified polyester composite filament and preparation method thereof Download PDFInfo
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- CN113913995A CN113913995A CN202111179448.0A CN202111179448A CN113913995A CN 113913995 A CN113913995 A CN 113913995A CN 202111179448 A CN202111179448 A CN 202111179448A CN 113913995 A CN113913995 A CN 113913995A
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- 210000002268 wool Anatomy 0.000 title claims abstract description 80
- 239000002131 composite material Substances 0.000 title claims abstract description 75
- 229920000728 polyester Polymers 0.000 title claims abstract description 52
- 239000004744 fabric Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000009941 weaving Methods 0.000 claims abstract description 21
- 238000009987 spinning Methods 0.000 claims abstract description 20
- 238000009835 boiling Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 18
- 238000004043 dyeing Methods 0.000 claims description 14
- 239000000980 acid dye Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000986 disperse dye Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 2
- 229920002334 Spandex Polymers 0.000 abstract description 4
- 239000004759 spandex Substances 0.000 abstract description 4
- 230000002045 lasting effect Effects 0.000 abstract description 3
- 239000011550 stock solution Substances 0.000 abstract description 3
- 238000009971 piece dyeing Methods 0.000 abstract description 2
- 238000004886 process control Methods 0.000 abstract description 2
- 238000002788 crimping Methods 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 229920002215 polytrimethylene terephthalate Polymers 0.000 description 5
- 239000004753 textile Substances 0.000 description 3
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 210000004177 elastic tissue Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009999 singeing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/233—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads protein-based, e.g. wool or silk
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/292—Conjugate, i.e. bi- or multicomponent, fibres or filaments
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/54—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads coloured
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/56—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
-
- 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
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/01—Natural animal fibres, e.g. keratin 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]
Abstract
The invention discloses a piece-dyed elastic wool fabric of modified polyester composite filaments and a preparation method thereof, wherein the piece-dyed elastic wool fabric comprises dyeable modified polyester NEDDP and PBT polyester composite NEDDP/PBT elastic filaments dispersed at normal pressure, and composite yarns formed by doubling with wool or wool blended spun yarns are taken as weft yarns, and the NEDDP/PBT polyester composite filaments are self-crimping filaments colored or white in stock solution; the wool fabric has 5-40% of stretching elasticity in the weft direction. The invention relates to a wool fabric which can provide lasting elasticity, has controllable elasticity, can be piece-dyed, has wool feel, strength and high cost performance, is prepared by adopting a low-temperature dyeable self-curling composite elastic white filament yarn through direct weaving or a Sirofil spinning or doubling weaving mode, controlling the proportion of an upper machine width to a finished product width, combining key process control of pre-setting, continuous boiling, piece dyeing, decating and the like, and aims at solving the problems that the existing wool spandex elastic fabric is easy to relax and expose white, and a wool/high-temperature dyeable polyester elastic filament yarn fabric is difficult to piece-dye and is easy to color.
Description
Technical Field
The invention relates to the technical field of novel textile materials, in particular to piece-dyed elastic wool fabric of modified polyester composite filaments and a preparation method thereof.
Background
The main raw material of the wool spinning fabric is short wool fibers, and the surface of the wool spinning fabric is covered by more or less scale layers, so that the difference between the visible light reflection performance of the wool spinning fabric and the synthetic fiber filaments with smooth surfaces is large, and the synthetic fiber filaments are difficult to use in the wool spinning fabric; even dope-dyed filaments run the risk of differing shade from the wool fibers, resulting in a phenomenon of significant shading and differences in light reflectance at different angles.
Elasticity can give the textile better fit and comfort properties and has become the most widely demanded of the existing clothing textiles. The elasticity achieved by wool fabrics is usually achieved by covering the elastic fibers with wool (or wool blend) yarns, such as spandex (e.g., Lycra), polyolefins (e.g., XLA fibers from DOW corporation), to form core yarns. The disadvantages of this type of elastic fiber application are: the bare yarn can not be applied, and the bare yarn is required to be coated by other fibers as a core yarn, so that the utility value is realized; the processing can be carried out only by special core-spun yarn equipment, the processing flow is long, and the elasticity is difficult to control uniformly; meanwhile, the elastic fabric has the defects of easy relaxation and poor chemical stability when repeatedly used for many times. After being colored by stock solution, the common polyester composite elastic filaments needing high-temperature and high-pressure dyeing can realize relatively lasting elasticity by means of ingenious organizational structure design, for example, patent ZL2007 patent polyester composite filament parallel linear latitudinal elastic wool fabric and preparation method thereof, patent ZL2007 patent polyester composite filament inter-latitudinal elastic wool fabric and preparation method thereof, and a method for realizing wool fabric elasticity by adopting PET/PTT polyester composite filaments is provided. However, it is clear that because PET/PTT requires high temperature and high pressure dyeing, and cannot piece-dye wool fibers, dope dyed filaments are required to achieve the elasticity of wool fabrics. The problems that the color light of wool fibers is difficult to coordinate, the fabric is easy to have flash and different colors, and the like exist.
In order to solve the problems and meet the increasing demands of consumers on color diversification, controllable elasticity and fast consumption, the development of piece-dyed elastic wool fabrics of modified polyester composite filaments is urgently needed.
Disclosure of Invention
The invention aims to provide piece-dyed elastic wool fabric of modified polyester composite filaments and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of piece-dyed elastic wool fabric of modified polyester composite filaments comprises the following steps:
s1: selecting normal-pressure disperse dyeable modified polyester NEDDP and PBT polyester composite filaments: the disperse dyeable modified polyester NEDDP slices with the viscosity of 0.4-0.8dl/g are put into corresponding different melting box bodies respectively, PBT slices with the viscosity of 0.8-1.4dl/g are put into spinneret plates through respective spinning channels, and the composite white yarn and wool or wool blended spun yarn are obtained by extrusion in parallel, wherein the composite ratio is 30/70-70/30;
s2: spinning: the composite white filament and wool or wool blended spun yarn in the S1 is spun and doubled through Sirofil of single or double filaments, and the yarn is obtained through twisting, wherein the twisting coefficient is controlled at 135-150;
s3: weaving: weaving with yarns obtained from S2 as warp yarns or weft yarns; or common wool or wool blended yarns are used as warp yarns, the composite white silk obtained in S1 is used as one of weft yarns, and the composite white silk and the warp yarns are woven in at intervals;
s4: dyeing and finishing; presetting at 160-190 ℃, and controlling the fabric width to be not more than 156 cm; then continuous boiling is carried out for not less than 20min at the temperature of 30-50 ℃ and at the speed of not more than 220 r/min; dyeing by adopting a one-bath method of disperse dye and acid dye at the temperature of not more than 100 ℃ for not less than 60 min; decating pressure is not less than 0.6g, and cooling time is not less than 90 s.
Preferably, the fineness of the normal-pressure disperse dyeable modified polyester NEDDP and PBT polyester composite filament is within the range of 33dtex to 330dtex, and the strength is not lower than 2.0 cN/dtex.
Preferably, the ratio of the composite white silk and wool or wool blended spun yarn in S2 is 80/20-10/90.
Preferably, the weaving ratio in S3 is 1: 5-5: 1, the proportion range of the woven upper machine width to the finished product width is 1.1-1.5.
Preferably, the ratio of the pre-set web to the finished web in S4 ranges from 1.02 to 1.2.
Preferably, before the decating process in S4, the sizing is needed, and the sizing temperature is not lower than 140 ℃.
The invention also discloses piece-dyed elastic wool fabric of the modified polyester composite filament, which comprises white grey cloth formed by weaving composite yarns formed by doubling and twisting the normal-pressure disperse dyeable modified polyester NEDDP and PBT polyester composite filament and wool or wool blended spun yarns as warp yarns or weft yarns.
Preferably, the dyeing temperature of the normal-pressure dispersion dyeable modified polyester NEDDP and PBT polyester composite filament is not more than 100 ℃.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a wool fabric which can provide lasting elasticity, has controllable elasticity, can be piece-dyed, has wool feel, strength and high cost performance, is prepared by adopting a low-temperature dyeable self-curling composite elastic white filament yarn through direct weaving or a Sirofil spinning or doubling weaving mode, controlling the proportion of an upper machine width to a finished product width, combining key process control of pre-setting, continuous boiling, piece dyeing, decating and the like, and aims at solving the problems that the existing wool spandex elastic fabric is easy to relax and expose white, and a wool/high-temperature dyeable polyester elastic filament yarn fabric is difficult to piece-dye and is easy to color. The needed elasticity value can be obtained by controlling the twist of the plied yarn, the tightness of the fabric and the after-finishing process;
by controlling the spinning process, the pre-setting process and the dyeing process, the piece-dyed wool elastic fabric with different colors, good color consistency and uniform color light, can be obtained.
Detailed Description
The technical solution of the present invention will be described with reference to the following examples.
The first embodiment is as follows:
the invention provides a technical scheme that: a preparation method of piece-dyed elastic wool fabric of modified polyester composite filaments comprises the following steps:
(1) preparing a composite polyester filament: obtaining composite white yarns with the fineness of 65D by adopting polyethylene terephthalate (PET) and polytrimethylene terephthalate (PTT) according to the composite proportion of 60/40 through a composite spinning technology; or respectively adding PET-based master batch and PTT-based master batch in the spinning process to obtain the composite yarn with the same fineness range and the same dope coloring;
(2) weft yarn forming mode: doubling the composite white silk or the composite silk colored by the stock solution in the step 1) and the 90Nm/2 wool/polyester 70/30 blended spun yarn with the twist of 790Z/m on a doubling machine, and twisting to obtain doubled yarn with the twist of 1000S twist/m; the yarn doubling tension of the wool yarn is controlled to be 4.82g, the yarn doubling tension of the filament is controlled to be 2.32g, and the composite white yarn or the composite yarn is in a state of being straightened and not extending so as to prevent the small plait yarn from appearing. The ratio of the fineness of the composite white yarn or the composite yarn to the fineness of the wool or wool blended yarn is 1.8, and the ratio of the composite white yarn or the composite yarn/wool or wool blended yarn formed after doubling is 30/70.
(3) Weaving mode: weaving by using common wool yarns or wool blended yarns with single yarn twist of 790Z twist/m and strand twist of 1000S twist/m and 90Nm/2 as warp yarns and using the doubled yarns obtained in the step 2) as weft yarns. In the weaving process, the weft yarns are woven by matching large and small bobbins by adopting at least two weft accumulators. The warp and weft density of the grey cloth is 501 multiplied by 370 pieces/10 cm.
(4) A finishing procedure: after singeing, a continuous boiling procedure is adopted, and the fabric width is effectively shrunk through a high-temperature continuous boiling groove at the temperature of 80-110 ℃ on continuous boiling equipment at the speed of 25m/min or a single-double boiling equipment at the temperature of 80 ℃ in a soaked state. Enabling the width of the fabric to shrink to 162cm, continuing effective width shrinkage in the subsequent wet finishing process, and tentering for 1-2cm during setting; if the door is not continuously cooked, the door width is reduced to about 155cm mainly by setting. Finally, the width of the finished product reaches 150cm after the decating process. The warp and weft density of the finished product is 585 multiplied by 385 roots/10 cm. The weft stretching elasticity of the five two fly-warp surface satins is within 20 percent.
Example two:
the invention provides a technical scheme that: a preparation method of piece-dyed elastic wool fabric of modified polyester composite filaments comprises the following steps:
selecting disperse dyeable modified polyester NEDDP and PBT polyester composite filaments, wherein the fineness of the NEDDP and PBT polyester composite filaments is 33dtex, and the strength is 2.0 cN/dtex. Cutting disperse dyeable modified polyester NEDDP into slices with the viscosity of 0.4 dl/g; respectively putting PBT slices with the viscosity of 0.8dl/g into corresponding different melting boxes, conveying the PBT slices to spinneret plates through respective spinning channels, and extruding in parallel to obtain composite elastic filaments with the composite ratio of 30/70;
spinning: the composite white yarns are singly folded or single yarns are used as yarns; or twisting single or multiple filaments and wool yarn or wool blended yarn in a Sirofil spinning, doubling, core-covering mode and the like to obtain yarn; the yarn twist coefficient is controlled to be 135; the proportion of the composite white silk and wool or wool blended spun yarn is 80/20.
Weaving: weaving with yarns obtained from S2 as warp yarns or weft yarns; or ordinary wool or wool blended yarns are used as warp yarns, the composite elastic filament yarn obtained in S1 is used as one of weft yarns, and the composite elastic filament yarn and the warp yarns are woven in a spaced mode, wherein the spaced weaving ratio is 1: and 5, the proportion range of the woven upper machine width to the finished product width is 1.1, and the proportion range of the pre-forming width to the finished product width is 1.02.
Dyeing and finishing: presetting at 160 ℃ at 140 ℃; controlling the width of the fabric to be 156 cm; continuously boiling for 20min at the temperature of 30 ℃ and the speed of 220 r/min; dyeing by adopting a one-bath method of disperse dye and acid dye at 100 ℃ for 60 min; decating pressure 0.6g, and cooling time 90 s.
Further, the dyeing temperature of the normal pressure dispersion dyeable modified polyester NEDDP and PBT polyester composite filament is 100 ℃.
Example three:
the invention also provides a technical scheme that: a preparation method of piece-dyed elastic wool fabric of modified polyester composite filaments comprises the following steps:
selecting disperse dyeable modified polyester NEDDP and PBT polyester composite filament, wherein the fineness of the NEDDP and PBT polyester composite filament is 330dtex, and the strength is 3.0 cN/dtex. Cutting disperse dyeable modified polyester NEDDP into slices with the viscosity of 0.8 dl/g; respectively putting PBT slices with the viscosity of 1.4dl/g into corresponding different melting boxes, conveying the PBT slices to spinneret plates through respective spinning channels, and extruding in parallel to obtain composite elastic filaments with the composite ratio of 70/30;
spinning: the composite white yarns are singly folded or single yarns are used as yarns; or twisting single or multiple filaments and wool yarn or wool blended yarn in a Sirofil spinning, doubling, core-covering mode and the like to obtain yarn; controlling the yarn twist coefficient at 150; the proportion of the composite white silk and wool or wool blended spun yarn is 10/90.
Weaving: weaving with yarns obtained from S2 as warp yarns or weft yarns; or ordinary wool or wool blended yarns are used as warp yarns, the composite elastic filament yarn obtained in S1 is used as one of weft yarns, and the composite elastic filament yarn and the warp yarns are woven in a spaced mode, wherein the spaced weaving ratio is 5: 1, the proportion range of the woven upper machine width to the finished product width is 1.5, and the proportion range of the pre-forming width to the finished product width is 1.2.
Dyeing and finishing: firstly, presetting at 190 ℃, wherein the setting temperature is 150 ℃; controlling the fabric width at 140 cm; continuously boiling for 30min at the temperature of 50 ℃ and the speed of 200 r/min; dyeing by adopting a one-bath method of disperse dye and acid dye at 95 ℃ for 80 min; decating pressure 0.8g, and cooling time 100 s.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A preparation method of piece-dyed elastic wool fabric of modified polyester composite filaments is characterized by comprising the following steps:
s1: selecting disperse dyeable modified polyester NEDDP and PBT polyester composite filaments: cutting disperse dyeable modified polyester NEDDP into slices with the viscosity of 0.4-0.8 dl/g; respectively putting PBT slices with the viscosity of 0.8-1.4dl/g into corresponding different melting boxes, feeding the PBT slices to spinneret plates through respective spinning channels, and extruding in parallel to obtain composite elastic filaments with the composite ratio of 30/70-70/30;
s2: spinning: singly plying the composite white filaments in the S1 or taking the composite white filaments as yarns; or twisting single or multiple filaments and wool yarn or wool blended yarn in a Sirofil spinning, doubling, core-covering mode and the like to obtain yarn; the yarn twist coefficient is controlled at 135-150;
s3: weaving: weaving with yarns obtained from S2 as warp yarns or weft yarns; or ordinary wool or wool blended yarns are used as warp yarns, the composite elastic filament yarn obtained in S1 is used as one of weft yarns, and the warp yarns are woven in at intervals;
s4: dyeing and finishing: presetting at 160-190 ℃, and controlling the fabric width to be not more than 156 cm; then continuous boiling is carried out for not less than 20min at the temperature of 30-50 ℃ and at the speed of not more than 220 r/min; dyeing by adopting a one-bath method of disperse dye and acid dye at the temperature of not more than 100 ℃ for not less than 60 min; decating pressure is not less than 0.6g, and cooling time is not less than 90 s.
2. The method of claim 1, wherein: the fineness of the NEDDP and PBT polyester composite filament is within the range of 33dtex-330dtex, and the strength is not lower than 2.0 cN/dtex.
3. The method of claim 1, wherein: the proportion of the composite white silk and wool yarn or wool blended yarn in S2 is 80/20-10/90.
4. The method of claim 1, wherein: the weaving proportion of the S3 is 1: 5-5: 1, the proportion range of the woven upper machine width to the finished product width is 1.1-1.5.
5. The method of claim 1, wherein: the ratio of the pre-set width to the finished width in S4 ranges from 1.02 to 1.2.
6. The method of claim 1, wherein: before the decating process in S4, shaping is needed, wherein the shaping temperature is not lower than 140 ℃.
7. A piece-dyed elastic wool fabric of modified polyester composite filaments is characterized in that: the production method according to any one of claims 1 to 6, which comprises weaving a grey cloth as a warp or weft, which is a composite yarn formed by dispersing dyeable modified polyester NEDDP and PBT polyester composite filaments under atmospheric pressure with a wool or wool blend spun yarn through Sirofil, doubling, covering, or the like and twisting.
8. The piece-dyed elastic wool fabric of modified polyester composite filaments according to claim 7, wherein: the dyeing temperature of the normal-pressure disperse dyeable modified polyester NEDDP and PBT polyester composite filament is not more than 100 ℃.
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2021
- 2021-10-11 CN CN202111179448.0A patent/CN113913995A/en active Pending
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|---|---|---|---|---|
| JP2000129546A (en) * | 1998-10-19 | 2000-05-09 | Toray Ind Inc | Composite polyester yarn and knit and woven fabric using the same |
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