WO2016078596A1 - 一种低旦尼高模量聚酯帘子布的制备方法 - Google Patents

一种低旦尼高模量聚酯帘子布的制备方法 Download PDF

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Publication number
WO2016078596A1
WO2016078596A1 PCT/CN2015/094964 CN2015094964W WO2016078596A1 WO 2016078596 A1 WO2016078596 A1 WO 2016078596A1 CN 2015094964 W CN2015094964 W CN 2015094964W WO 2016078596 A1 WO2016078596 A1 WO 2016078596A1
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WIPO (PCT)
Prior art keywords
cord fabric
high modulus
polyester cord
modulus polyester
preparing
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PCT/CN2015/094964
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English (en)
French (fr)
Inventor
李金山
曹永怡
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亚东工业（苏州）有限公司
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Application filed by 亚东工业（苏州）有限公司 filed Critical 亚东工业（苏州）有限公司
Priority to JP2017521141A priority Critical patent/JP6628158B2/ja
Priority to EP15861071.7A priority patent/EP3189962B1/en
Priority to RU2017117315A priority patent/RU2657502C1/ru
Priority to BR112017009674-9A priority patent/BR112017009674B1/pt
Priority to US15/519,539 priority patent/US10731276B2/en
Publication of WO2016078596A1 publication Critical patent/WO2016078596A1/zh

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • 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
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0042—Reinforcements made of synthetic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/10—Carcasses the reinforcing cords within each carcass ply arranged in a crossing relationship
    • B60C9/11—Woven, braided, or knitted plies
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • 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
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/48—Tyre cords
    • 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
    • D03D15/40—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
    • D03D15/41—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 with specific twist
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C2009/0071—Reinforcements or ply arrangement of pneumatic tyres characterised by special physical properties of the reinforcements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C2009/0071—Reinforcements or ply arrangement of pneumatic tyres characterised by special physical properties of the reinforcements
    • B60C2009/0078—Modulus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C2009/0416—Physical properties or dimensions of the carcass cords
    • B60C2009/0425—Diameters of the cords; Linear density thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C2009/0416—Physical properties or dimensions of the carcass cords
    • B60C2009/0433—Modulus

Definitions

  • the present invention relates to a polyester cord fabric for use in a passenger car tire, and more particularly to a low denier high modulus polyester cord fabric for use in a radial car tire.
  • the tires of the car mainly support the weight of the car body, provide braking force and driving force, cushion the impact of the road surface, and maintain or change the driving direction of the vehicle.
  • the requirements for car tires are getting higher and higher, and countries have successively introduced new standards for tires and developed a labeling method.
  • a new labeling scheme was implemented in Europe. All car tyres, light truck tyres, truck tyres and bus tyres sold in the EU must be labelled to indicate the tyre's fuel efficiency, rolling noise and wet grip rating.
  • the cord fabric is the main skeleton material of the tire casing, and the improvement of the performance of the cord fabric is necessary for the overall performance improvement of the tire.
  • Polyester dipped cord fabric has high breaking strength, low elongation at break and good dimensional stability, so it is widely used.
  • polyester dipped cord fabric has ordinary high modulus low shrinkage polyester cord fabric, high strength and high modulus low shrinkage polyester cord fabric, high dimensional high stability and high modulus low shrinkage poly Ester cord fabric, high strength, high dimensional stability, high modulus, low shrinkage polyester dipped cord fabric, and many other types.
  • these dipped cord fabrics lack improvements in reducing tire rolling resistance, reducing fuel consumption, and improving tire performance.
  • the preparation method of the modulus polyester cord fabric uses the modified low-denier high-modulus polyester industrial yarn as a raw material to realize the production of the polyester cord fabric by adopting a novel weaving process and a dipping process.
  • a method for preparing a low denier high modulus polyester cord fabric comprising the following steps:
  • crepe using a straight twisting machine to perform preliminary retanning and retanning of the raw yarn to obtain crepe;
  • the curtain cloth is dipped by two-bath dipping method
  • the temperature in the key area is adjusted to 250-260 ° C
  • the tension in the key area is adjusted to 0.3-2.9 daN/root
  • the running speed of the yarn is 55. ⁇ 70 m/min
  • the tension and temperature of the key zone are designed to achieve the high tensile and high retraction process of the cord fabric.
  • the two-bath dipping method is used to further improve the orientation of the product during the dipping process, and to ensure the heat shrinkage of the product. At the same time, the loss of strength due to heat is reduced while increasing the modulus.
  • the method for producing a low denier high modulus polyester cord fabric has a modulus of from 105 to 120 mN/dtex and a strength of from 9.0 to 9.5 g/d.
  • the method for preparing a low denier high modulus polyester cord fabric wherein the target twist of the preliminary flaw and the retanning has a twist coefficient of 430 to 435.
  • the cord fabric is sequentially dipped through an oven, a tension zone and a glue tank.
  • the method for preparing a low denier high modulus polyester cord fabric wherein the oven comprises six ovens having unequal temperatures.
  • the method for producing a low denier high modulus polyester cord fabric wherein the tension zone comprises five tension zones.
  • the method for preparing a low denier high modulus polyester cord fabric wherein the glue tank comprises a bath tank and a two bath tank.
  • the method for preparing a low denier high modulus polyester cord fabric wherein the low denier high modulus polyester cord fabric has a diameter ranging from 0.37 mm (500D) to 0.54 mm (1000D) .
  • the beneficial effects of the invention are: the low denier high modulus polyester cord fabric obtained by the method has a strength of 160-180N, and the rolling resistance coefficient Cr of the tire prepared by using the low-denier high modulus polyester cord fabric From 9.5 to 11.0, the rolling resistance of the tire is lowered, the fuel consumption is also lowered, and the tire performance is improved.
  • the modulus of the low-denier-high modulus polyester cord fabric obtained by the method is increased, and the finished modulus is increased.
  • Spinning is carried out using the modified high-modulus low-shrinkage polyester (HMLS) production line, replacing the metering pump to reduce the melt discharge amount, replacing the high-speed motor and the hot roller to provide the spinning speed, using 6000 ⁇ 6500m/min. Speed production;
  • HMLS modified high-modulus low-shrinkage polyester
  • crepe The roving is performed on the original yarn by using a straight twisting machine, and the polyester crepe line having a twist coefficient of 430-435 is produced according to the process parameters.
  • the fabric is produced by using a dipping machine, and is immersed in H1/H2 at a speed of 70 ⁇ 5 m/min; H3; H4/H5; H6 six ovens (the temperature of the oven is 145-165 ° C, respectively) ; 250 ⁇ 260 ° C; 145 ⁇ 165 ° C; 250 ⁇ 260 ° C), 5 tension zones (the tension of the critical zone is 0.29 ⁇ 2.0daN), two bath dipping method (polyester glue one bath and two bath) dip Gum action.
  • crepe The roving is performed on the original yarn by using a straight twisting machine, and the polyester crepe line having a twist coefficient of 430-435 is produced according to the process parameters.
  • the fabric is produced by using a dipping machine, and is immersed in H1/H2 at a speed of 65 ⁇ 5 m/min; H3; H4/H5; H6 six ovens (the temperature of the oven is 145-165 ° C, respectively) ; 250 ⁇ 260 ° C; 145 ⁇ 165 ° C; 250 ⁇ 260 ° C), 5 tension zones (the critical zone tension is 0.3 ⁇ 2.9daN), two bath dipping method (polyester glue one bath and two bath) dip Gum action.
  • the fabric is produced by using a dipping machine, and is immersed in H1/H2 at a speed of 60 ⁇ 5 m/min; H3; H4/H5; H6 six ovens (the temperature of the oven is 145-165 ° C, respectively) ; 250 ⁇ 260 ° C; 145 ⁇ 165 ° C; 250 ⁇ 260 ° C), 5 tension zones (the critical zone tension is 0.3 ⁇ 2.9daN), two bath dipping method (polyester glue one bath and two bath) dip Gum action.
  • the dipping speeds of Examples 1, 2, and 3 were sequentially lowered, and the tension was sequentially increased.
  • the smoothness of the microscopic polymer is improved under the high tension state of the cord fabric; thus the crystal form of the layer crystal is further expanded, and finally the modulus of the cord fabric is obtained. improve.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Tires In General (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)
  • Woven Fabrics (AREA)

Abstract

本发明公开了一种低旦尼高模量聚酯帘子布的制备方法，其包括以下步骤：1)纺丝，减小熔体吐出量，使出丝的旦尼为500～1000D；采用高速电机和热辊，纺丝速度为6000～6500m/min，制得原丝；2)捻纱，使用直捻机对所述原丝进行初捻和复捻，制得捻纱；3)织布，采用多尼尔喷气织机对所述捻纱进行织造，制得帘子布，织造穿筘时，采用两入一筘的入筘方式，同时，增设纱架滚动轴承及纱架单锭位张力控制皮带，以改善布面的均匀性；4)浸胶，采用两浴浸胶法对所述帘子布进行浸胶，调整关键区的温度为250～260℃，调整关键区的张力为0.3～2.9daN/根，纱线运行速度为55～70m/min，制得低旦尼高模量聚酯帘子布。此种帘子布可以降低轮胎的滚动阻力，降低油耗，提升轮胎性能。

Description

一种低旦尼高模量聚酯帘子布的制备方法 技术领域
本发明涉及一种应用于轿车轮胎的聚酯帘子布，特别涉及一种应用于子午线轿车轮胎的低旦尼高模量的聚酯帘子布。
背景技术
轿车的轮胎主要起支撑车体重量，提供制动力和驱动力，缓冲路面的冲击，保持或转换车辆的行驶方向等作用。随着经济的不断发展，对于轿车轮胎的要求越来越高，各国陆续对轮胎实行新的标准，制定了标签法。2012年，欧洲实施了新的标签法，对所有在欧盟销售的轿车胎、轻卡胎、卡车胎及公共汽车轮胎要求必须加贴标签，以标示轮胎的燃油效率、滚动噪声和湿抓着力的等级。此法案的出台预示着欧盟对轮胎三大性能：燃油经济性(即轮胎滚动阻力要求)，潮湿路面抓地力等级，道路噪声等级有了明确的规定及要求。欧盟标签法的实施预示着将会有越来越多的国家对轮胎制定相应标准。而应对这些变化，提高轮胎性能将显得尤为重要。
帘子布是轮胎外胎的主要骨架材料，帘子布性能的提升对于轮胎的整体性能改进非常必要。聚酯浸胶帘子布具有高断裂强度、低断裂伸长率及良好的尺寸稳定性等，故其应用广泛。现阶段，随着原丝技术革新，聚酯浸胶帘子布有普通高模量低收缩聚酯帘子布、高强高模量低收缩聚酯帘子布、高尺寸高稳定性高模量低收缩聚酯帘子布、高强度高尺寸稳定性高模量低收缩聚酯浸胶帘子布等多种种类。但是，这些浸胶帘子布中缺少针对降低轮胎滚动阻力、降低油耗、提升轮胎性能所作出的改进。
目前，子午轮胎在轿车中应用较多。制备一种可有效降低子午轮胎滚动阻力、降低油耗、提升轮胎性能的低旦尼(低直径)高模量的聚酯浸胶帘子布显得很必要。
发明内容
针对现有技术中存在的不足之处，本发明的目的在于提供一种低旦尼高 模量聚酯帘子布的制备方法，以改性的低旦尼高模量聚酯工业丝为原料，通过采用新型织布工艺与浸胶工艺实现聚酯帘子布的生产。
为实现上述目的，本发明通过以下技术方案实现：
一种低旦尼高模量聚酯帘子布的制备方法，其包括以下步骤：
1)纺丝，减小熔体吐出量，使出丝的旦尼为500～1000D；采用高速电机和热辊，纺丝速度为6000～6500m/min，制得原丝。对现有的高模低缩涤纶生产线进行改造，更换计量泵以减小熔体吐出量，从而降低纤维旦尼数；通过超高速纺丝改变聚酯高分子微观结构，提高高分子取向度，进而提高纤维的强度和模量；
2)捻纱，使用直捻机对所述原丝进行初捻和复捻，制得捻纱；
3)织布，采用多尼尔喷气织机对所述捻纱进行织造，制得帘子布，织造穿筘时，采用两入一筘的入筘方式，同时，增设纱架滚动轴承及纱架单锭位张力控制皮带，以改善布面的均匀性；
4)浸胶，采用两浴浸胶法对所述帘子布进行浸胶，调整关键区的温度为250～260℃，调整关键区的张力为0.3～2.9daN/根，纱线运行速度为55～70m/min，制得低旦尼高模量聚酯帘子布。关键区的张力和温度的设计是为了实现帘子布高拉伸高回缩的工艺目的，采用两浴浸胶法浸胶，在浸胶过程进一步提高产品的取向度，在保证产品的热收缩的同时，减少因受热产生的强力损失，同时提高模量。
优选的是，所述的低旦尼高模量聚酯帘子布的制备方法，其中，所述原丝模量为105～120mN/dtex，强力为9.0～9.5g/d。
优选的是，所述的低旦尼高模量聚酯帘子布的制备方法，其中，所述初捻及所述复捻的目标捻度的捻系数均为430～435。
优选的是，所述的低旦尼高模量聚酯帘子布的制备方法，其中，步骤4)中，所述帘子布依次经过烘箱、张力区及胶槽进行浸胶。
优选的是，所述的低旦尼高模量聚酯帘子布的制备方法，其中，所述烘箱包括六个温度不等的烘箱。
优选的是，所述的低旦尼高模量聚酯帘子布的制备方法，其中，所述张力区包括五个张力区。
优选的是，所述的低旦尼高模量聚酯帘子布的制备方法，其中，所述胶槽包括一浴胶槽及二浴胶槽。
优选的是，所述的低旦尼高模量聚酯帘子布的制备方法，其中，所述低旦尼高模量聚酯帘子布直径范围为：0.37mm(500D)～0.54mm(1000D)。
本发明的有益效果是：通过该方法制得的低旦尼高模量聚酯帘子布强力为160～180N，采用所述低旦尼高模量聚酯帘子布制得的轮胎滚动阻力系数Cr为9.5～11.0，轮胎的滚动阻力降低，油耗也得以下降，轮胎性能得以提升，通过该方法制得的低旦尼高模量聚酯帘子布原丝模量增加，成品模量增加。
具体实施方式
下面对本发明做进一步的详细说明，以令本领域技术人员参照说明书文字能够据以实施。
实施例1
(1)工艺参数如下：
表1一种低旦尼高模量聚酯帘子布的制造方法工艺参数例1
Figure PCTCN2015094964-appb-000001
Figure PCTCN2015094964-appb-000002
(2)具体生产工艺包括以下步骤：
1)纺丝：选用改造后的高模低缩涤纶(HMLS)生产线进行纺丝，更换计量泵减小熔体吐出量，更换高速电机和热辊提供纺丝速度，使用6000～6500m/min的转速进行生产；
2)捻纱：使用直捻机对原丝进行捻纱，根据工艺参数进行设置，生产得到捻系数为430～435的聚酯捻线；
3)织造：采用多尼尔喷气织机完成帘子布的织造，织造穿筘时，采用两入一筘的入筘方式。同时，增加纱架滚动轴承和纱架单锭位张力控制皮带，改善布面的均匀性；
4)浸胶：胚布使用浸胶机进行生产，以70±5米/分钟的速度依次浸过H1/H2；H3；H4/H5；H6六个烘箱(烘箱的温度分别为145～165℃；250～260℃；145～165℃；250～260℃)，5个张力区(关键区的张力为0.29～2.0daN)，两浴浸胶法(聚酯胶液一浴和二浴)浸胶作用。
本实例生产500D～1000D的聚酯帘子布，原丝，2％伸长时模量＝116.58 mN/dtex，强度＝9.23g/d；浸胶帘子布，2％伸长时模量＝126mN/dtex，强力＝154.00N。
实施例2
(1)工艺参数如下：
表2一种低旦尼高模量聚酯帘子布的制造方法工艺参数例2
Figure PCTCN2015094964-appb-000003
Figure PCTCN2015094964-appb-000004
(2)具体生产工艺包括以下步骤：
1)纺丝：选用改造后的HMLS生产线进行纺丝，更换计量泵减小熔体吐出量，更换高速电机和热辊提供纺丝速度，使用6000～6500m/min的转速进行生产；
2)捻纱：使用直捻机对原丝进行捻纱，根据工艺参数进行设置，生产得到捻系数为430～435的聚酯捻线；
3)织造：采用多尼尔喷气织机完成帘子布的织造，织造穿筘时，采用两入一筘的入筘方式。同时，增加纱架滚动轴承和纱架单锭位张力控制皮带，改善布面的均匀性；
4)浸胶：胚布使用浸胶机进行生产，以65±5米/分钟的速度依次浸过H1/H2；H3；H4/H5；H6六个烘箱(烘箱的温度分别为145～165℃；250～260℃；145～165℃；250～260℃)，5个张力区(关键区的张力为0.3～2.9daN)，两浴浸胶法(聚酯胶液一浴和二浴)浸胶作用。
本实例生产500D～1000D的聚酯帘子布，原丝2％伸长时模量＝108.13mN/dtex，强度＝8.81g/d；浸胶帘子布2％伸长时模量＝128mN/dtex，强力＝160.35N。
实施例3
1、工艺参数如下：
表3一种低旦尼高模量的聚酯帘子布的制造方法工艺参数例3
Figure PCTCN2015094964-appb-000005
(2)具体生产工艺包括以下步骤：
1)纺丝：选用改造后的HMLS生产线进行纺丝，更换计量泵减小熔体 吐出量，更换高速电机和热辊提供纺丝速度，使用6000～6500m/min的转速进行生产。
2)捻纱：使用直捻机对原丝进行捻纱，根据工艺参数进行设置，生产得到捻系数为430～435的聚酯捻线。
3)织造：采用多尼尔喷气织机完成帘子布的织造，织造穿筘时，采用两入一筘的入筘方式。同时，增加纱架滚动轴承和纱架单锭位张力控制皮带，改善布面的均匀性
4)浸胶：胚布使用浸胶机进行生产，以60±5米/分钟的速度依次浸过H1/H2；H3；H4/H5；H6六个烘箱(烘箱的温度分别为145～165℃；250～260℃；145～165℃；250～260℃)，5个张力区(关键区的张力为0.3～2.9daN)，两浴浸胶法(聚酯胶液一浴和二浴)浸胶作用。
本实例生产500D～1000D的聚酯帘子布，原丝2％伸长时模量＝110.10mN/dtex，强度＝9.10g/d；浸胶帘子布2％伸长时模量＝131mN/dtex，强力＝158.61N。
实施例1、2、3的浸胶速度依次降低，张力依次提升。通过对浸胶速度及张力的配合调控，使帘子布在高张力状态下，其微观高分子的顺向度得到提升；从而使层晶的结晶形态得到进一步扩展，最终使帘子布的模量得到提高。
上述3个实施例产品指标见下表：
表4实施例1、2、3中原丝及制得产品的性能指标
Figure PCTCN2015094964-appb-000006
尽管本发明的实施方案已公开如上，但其并不仅仅限于说明书和实施方式中所列运用，它完全可以被适用于各种适合本发明的领域，对于熟悉本领域的人员而言，可容易地实现另外的修改，因此在不背离权利要求及等同范围所限定的一般概念下，本发明并不限于特定的细节。

Claims (8)

  1. 一种低旦尼高模量聚酯帘子布的制备方法，其特征在于，包括以下步骤：
    1)纺丝，减小熔体吐出量，使出丝的旦尼为500～1000D；采用高速电机和热辊，纺丝速度为6000～6500m/min，制得原丝；
    2)捻纱，使用直捻机对所述原丝进行初捻和复捻，制得捻纱；
    3)织布，采用多尼尔喷气织机对所述捻纱进行织造，制得帘子布，织造穿筘时，采用两入一筘的入筘方式，同时，增设纱架滚动轴承及纱架单锭位张力控制皮带，以改善布面的均匀性；
    4)浸胶，采用两浴浸胶法对所述帘子布进行浸胶，调整关键区的温度为250～260℃，调整关键区的张力为0.3～2.9daN/根，纱线运行速度为55～70m/min，制得低旦尼高模量聚酯帘子布。
  2. 根据权利要求1所述的低旦尼高模量聚酯帘子布的制备方法，其特征在于，所述原丝模量为105～120mN/dtex，强力为9.0～9.5g/d。
  3. 根据权利要求1或2所述的低旦尼高模量聚酯帘子布的制备方法，其特征在于，所述初捻及所述复捻的目标捻度的捻系数均为430～435。
  4. 根据权利要求3所述的低旦尼高模量聚酯帘子布的制备方法，其特征在于，步骤4)中，所述帘子布依次经过烘箱、张力区及胶槽进行浸胶。
  5. 根据权利要求4所述的低旦尼高模量聚酯帘子布的制备方法，其特征在于，所述烘箱包括六个温度不等的烘箱。
  6. 根据权利要求5所述的低旦尼高模量聚酯帘子布的制备方法，其特征在于，所述张力区包括五个张力区。
  7. 根据权利要求6所述的低旦尼高模量聚酯帘子布的制备方法，其特征在 于，所述胶槽包括一浴胶槽及二浴胶槽。
  8. 根据权利要求4至7中任一项所述的低旦尼高模量聚酯帘子布的制备方法，其特征在于，所述低旦尼高模量聚酯帘子布直径范围为：0.37mm(500D)～0.54mm(1000D)。
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