WO2020073628A1 - High-temperature-resistant polyamide fiber for high-quality artificial human hair wig and preparation method therefor - Google Patents

High-temperature-resistant polyamide fiber for high-quality artificial human hair wig and preparation method therefor Download PDF

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Publication number
WO2020073628A1
WO2020073628A1 PCT/CN2019/081684 CN2019081684W WO2020073628A1 WO 2020073628 A1 WO2020073628 A1 WO 2020073628A1 CN 2019081684 W CN2019081684 W CN 2019081684W WO 2020073628 A1 WO2020073628 A1 WO 2020073628A1
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Prior art keywords
spinning
masterbatch
fiber
hair
polyamide fiber
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PCT/CN2019/081684
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French (fr)
Chinese (zh)
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郑文青
吴学丙
石华涛
丁刚
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河南瑞贝卡发制品股份有限公司
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Publication of WO2020073628A1 publication Critical patent/WO2020073628A1/en

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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
    • D01F6/88—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
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • A41G3/0083—Filaments for making wigs
    • 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
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/02—Preparation of spinning solutions
    • 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
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • 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
    • D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
    • 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
    • D01D5/12—Stretch-spinning methods
    • 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
    • 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
    • D01F6/905—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 of aromatic polyamides

Definitions

  • the invention relates to polyamide fiber, in particular to a high-temperature resistant polyamide fiber for high-simulation human hair wig and a preparation method thereof.
  • Natural human hair has always been the main raw material of hair products. With the increasing consumer demand, its resources are increasingly scarce and prices are constantly rising. As a result, chemical fibers have been gradually researched and developed to replace natural human hair as raw materials for hair products, such as modified polypropylene fibers, polyvinyl chloride fibers, polyester and polyamide fibers have been used in hair products. However, due to the increasing demands of consumers on hair products, the chemical fibers used as artificial hair not only need to have a suitable light and touch, but also consider the processing difficulty, weather resistance and other properties.
  • Fibers with better heat resistance and shape retention such as polyester fibers
  • the processing and molding needs to be performed at a high temperature of 150 °C to 180 °C
  • the touch is much harder than other fibers, and it will produce a thorny feel And plastic sense, unnatural touch and gloss.
  • Fibers that are easy to shape and process such as polypropylene and polyvinyl chloride fibers, do not have good heat and weather resistance, have poor combability, and have a gap with natural human hair.
  • Ordinary nylon fiber is too soft and has poor retention, and the feel is too greasy in the primary stage after spinning, and the feel will become dry and rough after being left for a period of time. This instability in the feel also seriously affects nylon as a wig fiber usage of. Therefore, people continue to innovate in fiber production in order to produce fibers with properties closer to natural human hair.
  • the purpose of the present invention is to overcome the shortcomings of the prior art, and to provide a polyamide fiber for high-simulation human hair wig and a preparation method thereof.
  • the present invention proposes a method for preparing high temperature resistant polyamide fiber for hair, which is characterized by comprising the following steps:
  • the remaining polyamide resin and the obtained masterbatch chips are prepared to form a spinning melt
  • the above-mentioned spinning melt spinning is used to prepare the high temperature resistant polyamide fiber for hair.
  • the above preparation method also has the following optimized process:
  • the steps for preparing the masterbatch slices include
  • the polyamide resin is mixed with other raw materials and dried until the moisture is below 80PPm, and the drying temperature is 90-120 °C;
  • the dried mixture is formed into a strip at 210-280 ° C by a twin-screw granulator, rapidly cooled and formed in cooling water, and then a diluted masterbatch slice is formed after the granulator.
  • the steps to prepare the spinning melt include:
  • the remaining polyamide resin and masterbatch chips are mixed and dried until the moisture is below 80PPm, and the drying temperature is 90-120 °C;
  • the dried mixture is discharged into a screw extruder and melt-extruded at a melting temperature of 220-280 ° C, so that the components are just melted to form a spinning melt.
  • the steps of preparing the high-temperature resistant polyamide fiber for hair by using the above spinning melt spinning include:
  • the spinning melt is fed into the raw material pipe of the spinning box by the screw head through the elbow at a pressure of 60-120kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly, and then blows from the side through the spinning shaft Or circulate and cool slowly;
  • the winding speed is 130-170m / min;
  • the primary fiber is preheated, stretched 2.0-5.5 times at a time, oiled twice, and then subjected to tension heat setting and cooling treatment.
  • the temperature for tension heat setting is 110-190 ° C.
  • the stretching ratio is preferably 2.5-4.0 times.
  • the invention also provides another method for preparing high temperature resistant polyamide fiber for hair, which includes the following steps:
  • the dried mixture is formed into a strip through a twin-screw granulator, and then rapidly cooled and formed in cooling water. After passing through the granulator, a diluted masterbatch slice is formed.
  • the spinning melt is fed into the raw material pipe of the spinning box by the screw head through the elbow at a pressure of 60-120kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly, and then blows from the side through the spinning shaft Or circulate and cool slowly,
  • the primary fiber is formed by oiling and winding once;
  • the primary fiber is preheated, stretched 2.0-5.5 times in one time, and oiled twice; then subjected to intense heat setting and cooling treatment.
  • polyamide resins in the above two preparation methods are preferably one or more of PA6, PA66, PA610, PA1010, PA12, aromatic polyamide and other homopolymers and copolymers.
  • the viscosity of the polyamide resin in the above two preparation methods is preferably between 2.60 and 3.60, more preferably between 2.80 and 3.40.
  • the invention also includes the high temperature resistant polyamide fiber prepared by the above preparation method.
  • the fiber produced by the present invention has soft touch, cool touch and smooth like silk.
  • the product is not greasy at the beginning, does not dry and rough after long-term storage, has good hand retention, good combability and easy to shape, and is lightweight and wear-resistant Natural human hair, low production cost, easy for industrial production;
  • the burning odor of the produced high imitation human hair fiber is consistent with human hair (protein), and has excellent chemical stability, thermal stability, strength, wear resistance, styling durability, etc., without color and with the gloss of natural human hair And excellent elasticity, drape, combability, easy to dye, not easy to fade, easy to shape, easy to organize;
  • the purpose of this embodiment is to provide a polyamide fiber for high-simulation human hair wigs and a preparation method thereof, so as to overcome the deficiencies of the prior art.
  • the total amount of polyamide resin is 100 parts, 20-40 parts of polyamide resin, all masterbatch and auxiliary are mixed and dried to remove moisture.
  • the moisture after drying is controlled below 80PPm, more preferably below 40PPm, 90-120 Drying at °C 6-12h, of which 100-110 °C is preferred.
  • the polyamide resin may be PA6, PA66, PA610, PA1010, PA12, aromatic polyamide and other homopolymers, copolymers or a mixture of one or more thereof, wherein the viscosity of PA6 is preferably between 2.60-3.60, more preferably 2.80 Between -3.40, the masterbatch is the same kind of masterbatch, 0.1-25 parts of inorganic filler (titanium dioxide, calcium carbonate, talc, etc.), internal slip dispersing wax (polyethylene wax, etc.), plasticizer and other auxiliary Agent.
  • inorganic filler titanium dioxide, calcium carbonate, talc, etc.
  • internal slip dispersing wax polyethylene wax, etc.
  • plasticizer plasticizer
  • the viscosity of the polyamide resin is preferably between 2.60-3.60; when the viscosity is less than 2.6, the fluidity is good, the tension is not easy to control, the fineness fluctuation is large and the spinnability is poor, the fiber strength is low, the feel is too soft, and the supportability and shaping durability are poor; When the viscosity is greater than 3.6, the fluidity is poor, the energy consumption is high, the fiber feels rough and too rigid, and the elasticity is poor without human vitality; when the viscosity is more preferably between 2.80-3.40, the fiber fineness is 50-70 dtex, broken The strength is 2.5-3.5cN / dtex, the elongation at break is 80% -100%, the modulus is 4-9cN / dtex, and the hand feel is close to that of natural human hair.
  • the dried mixture is passed through a twin-screw granulator to form a strip, which is rapidly cooled and shaped in cooling water. After passing through the granulator, a diluted masterbatch slice is formed.
  • the moisture after drying is controlled below 80PPm, more preferably below 40PPm, and the drying temperature is 90-120 ° C, of which 100-110 °C is preferred, and the remaining part of the polyamide resin may also be PA6, PA66, PA610, PA1010, PA12, aromatic polyamide and other homopolymers, copolymers, or a mixture of one or more thereof.
  • the dried mixed resin is discharged to a screw extruder through a weightlessness weighing scale at a corresponding ratio, and is melt-extruded so that each component has just melted to form a spinning melt.
  • the spinning melt is fed into the raw material pipe of the spinning box by the screw head through the elbow at a pressure of 60-120kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly, and then blows from the side through the spinning shaft Or ring to blow slowly.
  • Primary oiling and winding form primary fibers.
  • the primary fiber is preheated, stretched 2.0-5.5 times at a time, and oiled twice; after tension heat setting and cooling treatment, a polyamide-like human hair fiber is obtained.
  • Another method for preparing high temperature resistant polyamide fibers for hair includes the following steps:
  • the dried mixture is formed into a strip through a twin-screw granulator, and then rapidly cooled and formed in cooling water. After passing through the granulator, a diluted masterbatch slice is formed.
  • the spinning melt is fed into the raw material pipe of the spinning box by the screw head through the elbow at a pressure of 60-120kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly, and then blows from the side through the spinning shaft Or circulate and cool slowly,
  • the primary fiber is formed by oiling and winding once;
  • the primary fiber is preheated, stretched 2.0-5.5 times at a time, and oiled twice; then subjected to intense heat setting and cooling treatment.
  • Full granulation is relatively high in terms of production cost, but the fiber properties are consistent and the color is uniform. Generally, the fiber color does not appear, or as the production time The normal fluctuations of the progress and the measurement and feeding volume, the fluctuation of the fiber color and quality will not change too much, and it is easier to control the quality consistency.
  • the diameter of the fiber prepared by the above method is between 70-90 ⁇ m. It has a soft touch, cool touch and smooth like silk, good combability and easy to set, light and wear-resistant resembles natural human hair, can be used in the hair products industry to replace Human hair; low production cost, easy for industrial production, the produced human hair fiber has excellent chemical stability, thermal stability, strength, stiffness, wear resistance, etc., and has the luster of natural human hair and excellent elasticity, drape , Not easy to fade, easy to shape, easy to organize, can be hydroformed or even straightened and entangled, with good application prospects and economic benefits.
  • a Mix 20 parts of PA6 with a viscosity of 2.60 with a certain proportion of color masterbatch, 0.1 parts of titanium dioxide and 0.1 parts of calcium carbonate in a high-speed mixer; b. Form the mixture in step a through a twin-screw granulator Strips, formed by cooling in cooling water, and formed into diluted masterbatch slices after granulator; c. 80 parts of dried PA6 and the masterbatch slices in step b were dried at 110 ° C for 6h respectively. Moisture is controlled below 40ppm; d.
  • the mixed slices dried in step c, and the plasticizer are passed through a weightlessness weighing scale, through a screw extruder, at 230-245 °C melt extrusion, forming a spinning melt; e.
  • the spinning melt in step d enters the raw material pipe of the spinning box from the screw head through the elbow at a pressure of 80-110kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly and then passes The spinning shaft is slowly cooled by ring blowing; f.
  • the primary fiber prepared in step e is oiled and wound at 140 m / min to form primary fibers; g.
  • the primary fiber prepared in step f is preheated and drawn once 2.5 times; h.
  • the fiber drawn in step g is subjected to tension heat setting, secondary oiling, drying, After cooling process, i.e. to obtain a simulated human hair polyamide fibers; heat setting temperature was 150 °C.
  • step a After uniformly mixing 20 parts of PA66 with a viscosity of 3.0 and a certain amount of masterbatch in a high-speed mixer, drying at 120 ° C for 8 hours, the moisture after drying is controlled below 80ppm; b. Mixing in step a The material is formed into a strip by a twin-screw granulator, cooled and formed in cooling water, and then a diluted masterbatch slice is formed after the granulator; c. 80 parts of PA6 with viscosity of 2.8 and the masterbatch in step b are dried in advance The slices are dried at 120 ° C and 110 ° C for 6h respectively, and the moisture after drying is controlled below 40PPm; d.
  • the mixed slices dried in step c are discharged with a certain proportion of plasticizer through a weightlessness weighing scale to
  • the screw extruder is melt extruded at 240-250 ° C to form a spinning melt; e.
  • the spinning melt in step d enters from the screw head through the elbow at a pressure of 80-110 kg / cm 2
  • the raw material pipeline in the spinning box is extruded through the spinning assembly after being pressurized by the metering pump, and then is slowly cooled by the side blowing through the spinning shaft; f.
  • the oil prepared in step e is oiled at 150m / min once Winding to form nascent fibers; g.
  • the nascent fibers prepared in step f are preheated and stretched at one time 2.5 H. After the fibers drawn in step g are subjected to tension heat setting, secondary oiling, drying, and cooling treatment, a polyamide-like human hair fiber is obtained; the heat setting temperature is 150 ° C.
  • the polyamide-like human hair fiber prepared in Examples 1 and 2 has the following performance evaluation methods:
  • Elasticity The final hair, 30 cm long, is curled at the same temperature with a curling iron, and the degree of curling is observed.
  • Forming degree the final hair is 30 cm long, set at the same temperature, and observe the change of curvature and length.
  • Polymerization The final hair, 30 cm long, is visually observed to observe the degree of looseness of the hair.
  • Fineness The final hair is 30cm long, weighed, and calculated the size of the hair fineness.
  • the amide-like human hair fiber prepared in Examples 1 and 2 has the performance test results shown in Table 1:

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  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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Abstract

The present invention relates to polyamide fibers, and specifically relates to high-temperature-resistant polyamide fibers for a high-quality artificial human hair wig, and a preparation method therefor, wherein 20-40% of the required polyamide resin weight and other raw materials are prepared to form a color masterbatch slice, the remaining polyamide resin and the obtained color masterbatch slice are prepared to form a spinning melt, and the spinning melt above is used for spinning to prepare the high-temperature-resistant polyamide fiber for the wig. The wig fibers produced by the present invention has excellent chemical stability, thermal stability, strength, abrasion resistance, and styling durability, has the luster of natural human hair and excellent elasticity, drapability, and combability, is easily dyed, does not easily fade, is easily shaped and easy to neaten.

Description

高仿真人发假发用耐高温聚酰胺类纤维及其制备方法High temperature resistant polyamide fiber for high-simulation human hair wig and preparation method thereof [技术领域][Technical Field]
本发明涉及聚酰胺类纤维，具体涉及一种高仿真人发假发用耐高温聚酰胺类纤维及其制备方法。The invention relates to polyamide fiber, in particular to a high-temperature resistant polyamide fiber for high-simulation human hair wig and a preparation method thereof.
[背景技术][Background technique]
天然人发一直以来都是发制品的主要原料，随着消费需求的日益高涨，其资源日益紧缺，价格不断上涨。从而化学纤维逐渐被人们研究开发，用来替代天然人发作为发制品的原料,如改性聚丙烯纤维、聚氯乙烯纤维、聚酯及聚酰胺纤维已经被用于头发制品。但由于消费者对于发制品的要求日益提高，用来作为人造毛发的化学纤维，不仅需要有合适的光感与触感，还要考虑加工难易程度、耐候性等性能。然而对于耐热性和定型保持性较好的纤维，比如聚酯纤维，其加工造型需要在150℃～180℃的高温下进行，触感与其他材质纤维相比会硬许多，且会产生刺手感及塑料感，触感及光泽不自然。易定型加工的纤维，如聚丙烯及聚氯乙烯纤维，又不具有良好的耐热及耐候性，梳理性差，与天然人发之间存在差距。普通的尼龙纤维过于柔软定型保持度差，且纺丝后初级阶段手感过于油腻，而放置一段时间后手感则会变得干燥粗糙，这种手感上的不稳定性也严重影响着尼龙作为假发纤维的使用。因此人们不断地在纤维生产上进行创新，以便生产出性能更接近于天然人发的纤维。Natural human hair has always been the main raw material of hair products. With the increasing consumer demand, its resources are increasingly scarce and prices are constantly rising. As a result, chemical fibers have been gradually researched and developed to replace natural human hair as raw materials for hair products, such as modified polypropylene fibers, polyvinyl chloride fibers, polyester and polyamide fibers have been used in hair products. However, due to the increasing demands of consumers on hair products, the chemical fibers used as artificial hair not only need to have a suitable light and touch, but also consider the processing difficulty, weather resistance and other properties. However, for fibers with better heat resistance and shape retention, such as polyester fibers, the processing and molding needs to be performed at a high temperature of 150 ℃ to 180 ℃, the touch is much harder than other fibers, and it will produce a thorny feel And plastic sense, unnatural touch and gloss. Fibers that are easy to shape and process, such as polypropylene and polyvinyl chloride fibers, do not have good heat and weather resistance, have poor combability, and have a gap with natural human hair. Ordinary nylon fiber is too soft and has poor retention, and the feel is too greasy in the primary stage after spinning, and the feel will become dry and rough after being left for a period of time. This instability in the feel also seriously affects nylon as a wig fiber usage of. Therefore, people continue to innovate in fiber production in order to produce fibers with properties closer to natural human hair.
[发明内容][Summary]
本发明的目的在于克服现有技术的不足，提供一种高仿真人发假发用聚酰胺类纤维及其制备方法。The purpose of the present invention is to overcome the shortcomings of the prior art, and to provide a polyamide fiber for high-simulation human hair wig and a preparation method thereof.
为了实现上述目的，本发明提出一种发用耐高温聚酰胺类纤维的制备方法， 其特征在于包括以下步骤：In order to achieve the above object, the present invention proposes a method for preparing high temperature resistant polyamide fiber for hair, which is characterized by comprising the following steps:
将所需聚酰胺树脂重量的20～40％与其他原料经制备形成色母切片，Prepare 20-40% of the weight of the polyamide resin and other raw materials to form masterbatch slices,
将剩余的聚酰胺树脂与得到的色母切片经制备形成纺丝熔融液，The remaining polyamide resin and the obtained masterbatch chips are prepared to form a spinning melt,
采用上述纺丝熔融液纺丝制备所述的发用耐高温聚酰胺类纤维。The above-mentioned spinning melt spinning is used to prepare the high temperature resistant polyamide fiber for hair.
上述制备方法还具有如下优化工艺：The above preparation method also has the following optimized process:
所述的制备形成色母切片的步骤包括The steps for preparing the masterbatch slices include
聚酰胺树脂与其他原料混合后干燥至水分在80PPm以下，干燥温度为90-120℃；The polyamide resin is mixed with other raw materials and dried until the moisture is below 80PPm, and the drying temperature is 90-120 ℃;
干燥后的混合料通过双螺杆造粒机在210-280℃下形成带条，在冷却水中快速冷却成型，经切粒机后形成稀释的色母切片。The dried mixture is formed into a strip at 210-280 ° C by a twin-screw granulator, rapidly cooled and formed in cooling water, and then a diluted masterbatch slice is formed after the granulator.
制备形成纺丝熔融液的步骤包括：The steps to prepare the spinning melt include:
剩余的聚酰胺树脂与色母切片混合后干燥至水分在80PPm以下，干燥温度为90-120℃；The remaining polyamide resin and masterbatch chips are mixed and dried until the moisture is below 80PPm, and the drying temperature is 90-120 ℃;
干燥后的混合料下料至螺杆挤出机，进行熔融挤压，熔融温度为220-280℃，使各组分刚刚熔融，形成纺丝熔融液。The dried mixture is discharged into a screw extruder and melt-extruded at a melting temperature of 220-280 ° C, so that the components are just melted to form a spinning melt.
采用上述纺丝熔融液纺丝制备所述的发用耐高温聚酰胺类纤维的步骤包括：The steps of preparing the high-temperature resistant polyamide fiber for hair by using the above spinning melt spinning include:
纺丝熔融液以60-120kg/cm 2的压力由螺杆机头经过弯管而进入纺丝箱体内原料管道，经过计量泵增压后通过纺丝组件挤出，再经过纺丝甬道由侧吹风或环吹风缓冷； The spinning melt is fed into the raw material pipe of the spinning box by the screw head through the elbow at a pressure of 60-120kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly, and then blows from the side through the spinning shaft Or circulate and cool slowly;
经一次上油、卷绕形成初生纤维，卷绕速度为130-170m/min；After primary oiling and winding to form primary fibers, the winding speed is 130-170m / min;
初生纤维经预热，一次拉伸2.0-5.5倍，二次上油，再经过紧张热定型及冷 却处理，紧张热定型的温度为110-190℃。The primary fiber is preheated, stretched 2.0-5.5 times at a time, oiled twice, and then subjected to tension heat setting and cooling treatment. The temperature for tension heat setting is 110-190 ° C.
拉伸倍数优选为2.5-4.0倍。The stretching ratio is preferably 2.5-4.0 times.
本发明还提供另一种发用耐高温聚酰胺类纤维的制备方法，包括以下步骤：The invention also provides another method for preparing high temperature resistant polyamide fiber for hair, which includes the following steps:
将聚酰胺树脂、色母粒及辅助剂混合后在90-120℃下干燥去除水分，干燥后的水分控制在80PPm以下，After mixing the polyamide resin, masterbatch and auxiliary agent, it is dried at 90-120 ° C to remove moisture. The moisture after drying is controlled below 80PPm.
干燥后的混合料通过双螺杆造粒机形成带条，在冷却水中快速冷却成型，经切粒机后形成稀释的色母切片，The dried mixture is formed into a strip through a twin-screw granulator, and then rapidly cooled and formed in cooling water. After passing through the granulator, a diluted masterbatch slice is formed.
将色母切片在90-120℃下干燥去除水分，干燥后的水分控制在80PPm以下，Dry the masterbatch slices at 90-120 ° C to remove moisture, the moisture after drying should be controlled below 80PPm,
将色母切片进行熔融挤压，使各组分刚刚熔融，形成纺丝熔融液，Melt and squeeze the masterbatch slices to make the components just melt to form the spinning melt,
纺丝熔融液以60-120kg/cm 2的压力由螺杆机头经过弯管而进入纺丝箱体内原料管道，经过计量泵增压后通过纺丝组件挤出，再经过纺丝甬道由侧吹风或环吹风缓冷， The spinning melt is fed into the raw material pipe of the spinning box by the screw head through the elbow at a pressure of 60-120kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly, and then blows from the side through the spinning shaft Or circulate and cool slowly,
缓冷后经一次上油、卷绕形成初生纤维；After slow cooling, the primary fiber is formed by oiling and winding once;
的初生纤维经预热、一次拉伸2.0-5.5倍、二次上油；再经过紧张热定型及冷却处理。The primary fiber is preheated, stretched 2.0-5.5 times in one time, and oiled twice; then subjected to intense heat setting and cooling treatment.
进一步的，上述两种制备方法中的聚酰胺树脂优选采用PA6、PA66、PA610、PA1010、PA12及芳香族聚酰胺等均聚物、共聚物中的一种或多种混合。Further, the polyamide resins in the above two preparation methods are preferably one or more of PA6, PA66, PA610, PA1010, PA12, aromatic polyamide and other homopolymers and copolymers.
上述两种制备方法中的聚酰胺树脂粘度优选在2.60-3.60之间，更优选在2.80-3.40之间。The viscosity of the polyamide resin in the above two preparation methods is preferably between 2.60 and 3.60, more preferably between 2.80 and 3.40.
上述两种制备方法中的其他原料包括色母粒和助剂。Other raw materials in the above two preparation methods include masterbatch and additives.
本发明还包括采用上述制备方法制备得到的发用耐高温聚酰胺类纤维。The invention also includes the high temperature resistant polyamide fiber prepared by the above preparation method.
本发明的优点是：The advantages of the invention are:
1、本发明所生产的纤维手感柔软、触感清凉且如丝绸顺滑，产品初期不油腻，长期放置后不干硬粗糙，手感保持性良好，通梳性好且易定型，轻质耐磨酷似天然人发，生产成本低，便于工业化生产；1. The fiber produced by the present invention has soft touch, cool touch and smooth like silk. The product is not greasy at the beginning, does not dry and rough after long-term storage, has good hand retention, good combability and easy to shape, and is lightweight and wear-resistant Natural human hair, low production cost, easy for industrial production;
2、生产的高仿人发纤维燃烧气味与人发(蛋白质)一致，并具有优良化学稳定性、热稳定性、强度、耐磨性、定型持久性等，不花色且具有天然人发的光泽和优良的弹性、悬垂性、梳理性，易染色不易褪色、易造型、易整理；2. The burning odor of the produced high imitation human hair fiber is consistent with human hair (protein), and has excellent chemical stability, thermal stability, strength, wear resistance, styling durability, etc., without color and with the gloss of natural human hair And excellent elasticity, drape, combability, easy to dye, not easy to fade, easy to shape, easy to organize;
3、可进行水烫成型、拉直重缠，具有良好的应用前景和经济效益。3. It can be hydroformed, straightened and entangled, with good application prospects and economic benefits.
[具体实施方式][detailed description]
下面通过具体实施例对本发明做进一步说明，下述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定，对于所属领域的普通技术人员来说，在本发明内容说明的基础上还可以做出其它不同形式的变化或变动，这里不对所有的实施方式予以例举。The following further describes the present invention through specific examples. The following examples are merely examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For ordinary technicians in the art, Based on the description of the invention, other different forms of changes or changes can be made, and not all the embodiments are exemplified here.
本实施例的目的在于提供一种高仿真人发假发用聚酰胺类纤维及其制备方法，以克服现有技术的不足。The purpose of this embodiment is to provide a polyamide fiber for high-simulation human hair wigs and a preparation method thereof, so as to overcome the deficiencies of the prior art.
其主要包括两种制备方法：It mainly includes two preparation methods:
聚酰胺树脂总用量为100份，将20-40份的聚酰胺树脂、全部色母粒及辅助剂进行混合干燥去除水分，干燥后的水分控制在80PPm以下，更优选为40PPm以下，90-120℃干燥6-12h，其中100-110℃是优选的。聚酰胺树脂可以是PA6、PA66、PA610、PA1010、PA12及芳香族聚酰胺等均聚物、共聚物或者其中一种或多种混合，其中PA6粘度优选在2.60-3.60之间，更优选为2.80-3.40之间，色母为同种类色母，0.1-25份的无机填料(钛白粉、碳酸钙、滑石粉等)、内滑剂分散腊(聚乙烯蜡等)、增塑剂等一些辅助剂。试验发现，聚酰胺纤维相比聚酯 加工温度稍低些，该纤维通梳性好且柔软易定型，点燃后与羊毛气味相近，不仅克服了油腻感而且保持优异手感的时间得到了有效延长，手感保持良好。聚酰胺树脂的粘度优选在2.60-3.60之间；粘度小于2.6时，流动性好张力不易控制，纤度波动大且可纺性差，纤维强度低、手感过于柔软，支撑性、定型持久性较差；粘度大于3.6时，流动性差、能耗高，纤维手感较粗糙且过于死板，弹性差无人发的活力感；粘度在更优选为2.80-3.40之间时，纤维的纤度为50-70dtex，断裂强度在2.5-3.5cN/dtex，断裂伸长率为80％-100％，模量在4-9cN/dtex，手感与天然人发接近。The total amount of polyamide resin is 100 parts, 20-40 parts of polyamide resin, all masterbatch and auxiliary are mixed and dried to remove moisture. The moisture after drying is controlled below 80PPm, more preferably below 40PPm, 90-120 Drying at ℃ 6-12h, of which 100-110 ℃ is preferred. The polyamide resin may be PA6, PA66, PA610, PA1010, PA12, aromatic polyamide and other homopolymers, copolymers or a mixture of one or more thereof, wherein the viscosity of PA6 is preferably between 2.60-3.60, more preferably 2.80 Between -3.40, the masterbatch is the same kind of masterbatch, 0.1-25 parts of inorganic filler (titanium dioxide, calcium carbonate, talc, etc.), internal slip dispersing wax (polyethylene wax, etc.), plasticizer and other auxiliary Agent. The test found that the processing temperature of polyamide fiber is slightly lower than that of polyester. The fiber has good combability and is soft and easy to shape. After igniting, it is similar to the smell of wool. It not only overcomes the greasy feeling but also maintains the excellent feel. Feel good. The viscosity of the polyamide resin is preferably between 2.60-3.60; when the viscosity is less than 2.6, the fluidity is good, the tension is not easy to control, the fineness fluctuation is large and the spinnability is poor, the fiber strength is low, the feel is too soft, and the supportability and shaping durability are poor; When the viscosity is greater than 3.6, the fluidity is poor, the energy consumption is high, the fiber feels rough and too rigid, and the elasticity is poor without human vitality; when the viscosity is more preferably between 2.80-3.40, the fiber fineness is 50-70 dtex, broken The strength is 2.5-3.5cN / dtex, the elongation at break is 80% -100%, the modulus is 4-9cN / dtex, and the hand feel is close to that of natural human hair.
将干燥后的混合料通过双螺杆造粒机形成带条，在冷却水中快速冷却成型，经切粒机后形成稀释的色母切片。The dried mixture is passed through a twin-screw granulator to form a strip, which is rapidly cooled and shaped in cooling water. After passing through the granulator, a diluted masterbatch slice is formed.
将剩余60-80份的聚酰胺树脂与稀释好的色母切片分别进行干燥去除水分，干燥后的水分控制在80PPm以下，更优选为40PPm以下，干燥温度为90-120℃，其中100-110℃是优选的，所述剩余部分的聚酰胺树脂也可以是PA6、PA66、PA610、PA1010、PA12及芳香族聚酰胺等均聚物、共聚物或者其中一种或多种混合。Dry the remaining 60-80 parts of the polyamide resin and the diluted masterbatch slices to remove moisture. The moisture after drying is controlled below 80PPm, more preferably below 40PPm, and the drying temperature is 90-120 ° C, of which 100-110 ℃ is preferred, and the remaining part of the polyamide resin may also be PA6, PA66, PA610, PA1010, PA12, aromatic polyamide and other homopolymers, copolymers, or a mixture of one or more thereof.
将干燥后的混合树脂经过失重计量秤以相应的比例下料至螺杆挤出机，进行熔融挤压，使各组分刚刚熔融，形成纺丝熔融液。纺丝熔融液以60-120kg/cm 2的压力由螺杆机头经过弯管而进入纺丝箱体内原料管道，经过计量泵增压后通过纺丝组件挤出，再经过纺丝甬道由侧吹风或环吹风缓冷。 The dried mixed resin is discharged to a screw extruder through a weightlessness weighing scale at a corresponding ratio, and is melt-extruded so that each component has just melted to form a spinning melt. The spinning melt is fed into the raw material pipe of the spinning box by the screw head through the elbow at a pressure of 60-120kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly, and then blows from the side through the spinning shaft Or ring to blow slowly.
经一次上油、卷绕形成初生纤维。Primary oiling and winding form primary fibers.
初生纤维经预热、一次拉伸2.0-5.5倍、二次上油；再经过紧张热定型及冷却处理后，即得到一种聚酰胺类仿人发纤维。The primary fiber is preheated, stretched 2.0-5.5 times at a time, and oiled twice; after tension heat setting and cooling treatment, a polyamide-like human hair fiber is obtained.
这是一种“半造粒”的制备方法，半造粒生产成本是较低的，可以减少60％到80％的造粒时间与消耗，从经济性上来考虑，如果质量在能够达到一致的均匀的前提下，会优先考虑半造粒。另一方面，PA6、PA66、PA610、PA1010等尼龙之间熔点及各加工温度下的流动性(粘度)差距较大，对于纺丝来讲，熔点差距大、掺和不均匀同样会造成质量问题，通过半造粒可以使以上两种或更多种尼龙在纺丝前达到较好的共混效果，可以缩小以上两种或更多种尼龙之间的物性差距，更有益于后面纺丝成型及质量的稳定，否则该混合熔体难以纺丝。This is a "semi-granulation" preparation method. The production cost of semi-granulation is lower, which can reduce the granulation time and consumption by 60% to 80%. From the economic point of view, if the quality is consistent On the premise of uniformity, semi-granulation will be given priority. On the other hand, PA6, PA66, PA610, PA1010 and other nylons have large melting point and fluidity (viscosity) gaps at various processing temperatures. For spinning, large melting point gaps and uneven blending can also cause quality problems. Through semi-granulation, the above two or more nylons can achieve a better blending effect before spinning, which can reduce the physical property gap between the two or more nylons, and is more beneficial for subsequent spinning molding And the quality is stable, otherwise the mixed melt is difficult to spin.
另一种发用耐高温聚酰胺类纤维的制备方法包括以下步骤：Another method for preparing high temperature resistant polyamide fibers for hair includes the following steps:
将聚酰胺树脂、色母粒及辅助剂混合后在90-120℃下干燥去除水分，干燥后的水分控制在80PPm以下，After mixing the polyamide resin, masterbatch and auxiliary agent, it is dried at 90-120 ° C to remove moisture. The moisture after drying is controlled below 80PPm.
干燥后的混合料通过双螺杆造粒机形成带条，在冷却水中快速冷却成型，经切粒机后形成稀释的色母切片，The dried mixture is formed into a strip through a twin-screw granulator, and then rapidly cooled and formed in cooling water. After passing through the granulator, a diluted masterbatch slice is formed.
将色母切片在90-120℃下干燥去除水分，干燥后的水分控制在80PPm以下，Dry the masterbatch slices at 90-120 ° C to remove moisture, the moisture after drying should be controlled below 80PPm,
将色母切片进行熔融挤压，使各组分刚刚熔融，形成纺丝熔融液，Melt and squeeze the masterbatch slices to make the components just melt to form the spinning melt,
纺丝熔融液以60-120kg/cm 2的压力由螺杆机头经过弯管而进入纺丝箱体内原料管道，经过计量泵增压后通过纺丝组件挤出，再经过纺丝甬道由侧吹风或环吹风缓冷， The spinning melt is fed into the raw material pipe of the spinning box by the screw head through the elbow at a pressure of 60-120kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly, and then blows from the side through the spinning shaft Or circulate and cool slowly,
缓冷后经一次上油、卷绕形成初生纤维；After slow cooling, the primary fiber is formed by oiling and winding once;
初生纤维经预热、一次拉伸2.0-5.5倍、二次上油；再经过紧张热定型及冷却处理。The primary fiber is preheated, stretched 2.0-5.5 times at a time, and oiled twice; then subjected to intense heat setting and cooling treatment.
这是一种“全造粒”的制备方法，全造粒按照生产成本上来说是较高的，但是纤维性质一致性高，颜色均匀，一般不会出现纤维花色，或者说随着生产 时间的推移及计量、下料量的正常波动，纤维颜色及质量的波动不会随之变化过大，更容易质量一致性的把控。This is a "full granulation" preparation method. Full granulation is relatively high in terms of production cost, but the fiber properties are consistent and the color is uniform. Generally, the fiber color does not appear, or as the production time The normal fluctuations of the progress and the measurement and feeding volume, the fluctuation of the fiber color and quality will not change too much, and it is easier to control the quality consistency.
上述方法制备的纤维直径介于70-90μm之间，手感柔软、触感清凉且如丝绸顺滑，通梳性好且易定型，轻质耐磨酷似天然人发，可以用于发制品行业替代天然人发；生产成本低，便于工业化生产，生产的仿人发纤维具有优良化学稳定性、热稳定性、强度、刚度、耐磨性等，且具有天然人发的光泽和优良的弹性、悬垂性，不易褪色，易造型、易整理，可以进行水烫成型甚至拉直重缠，具有良好的应用前景和经济效益。The diameter of the fiber prepared by the above method is between 70-90μm. It has a soft touch, cool touch and smooth like silk, good combability and easy to set, light and wear-resistant resembles natural human hair, can be used in the hair products industry to replace Human hair; low production cost, easy for industrial production, the produced human hair fiber has excellent chemical stability, thermal stability, strength, stiffness, wear resistance, etc., and has the luster of natural human hair and excellent elasticity, drape , Not easy to fade, easy to shape, easy to organize, can be hydroformed or even straightened and entangled, with good application prospects and economic benefits.
以下，结合具体实施例予以说明。Hereinafter, it will be described in conjunction with specific embodiments.
实施例1Example 1
a.将20份、粘度2.60的PA6与一定配比的色母粒及0.1份钛白粉及0.1份碳酸钙高速混合器内均匀混合；b.将步骤a中混合料通过双螺杆造粒机形成带条，在冷却水中冷却成型，经切粒机后形成稀释的色母切片；c.将80份干燥好的PA6和步骤b中的色母切片分别在110℃下进行干燥6h，干燥后的水分控制在40ppm以下；d.将步骤c中干燥后的混合切片，与增塑剂经过失重计量秤，通过螺杆挤出机，在230-245℃下进行熔融挤压，形成纺丝熔融液；e.步骤d中的纺丝熔融液以80-110kg/cm 2的压力由螺杆机头经过弯管而进入纺丝箱体内原料管道，经过计量泵增压后通过纺丝组件挤出，再经过纺丝甬道由环吹风缓冷；f.将步骤e所制得的，经一次上油、140m/min卷绕形成初生纤维；g.将步骤f制得的初生纤维经预热、一次拉伸2.5倍；h.将步骤g中拉伸后的纤维再经过紧张热定型、二次上油、烘干、冷却处理后，即得到一种聚酰胺类仿人发纤维；热定型温度为150℃。 a. Mix 20 parts of PA6 with a viscosity of 2.60 with a certain proportion of color masterbatch, 0.1 parts of titanium dioxide and 0.1 parts of calcium carbonate in a high-speed mixer; b. Form the mixture in step a through a twin-screw granulator Strips, formed by cooling in cooling water, and formed into diluted masterbatch slices after granulator; c. 80 parts of dried PA6 and the masterbatch slices in step b were dried at 110 ° C for 6h respectively. Moisture is controlled below 40ppm; d. The mixed slices dried in step c, and the plasticizer are passed through a weightlessness weighing scale, through a screw extruder, at 230-245 ℃ melt extrusion, forming a spinning melt; e. The spinning melt in step d enters the raw material pipe of the spinning box from the screw head through the elbow at a pressure of 80-110kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly and then passes The spinning shaft is slowly cooled by ring blowing; f. The primary fiber prepared in step e is oiled and wound at 140 m / min to form primary fibers; g. The primary fiber prepared in step f is preheated and drawn once 2.5 times; h. The fiber drawn in step g is subjected to tension heat setting, secondary oiling, drying, After cooling process, i.e. to obtain a simulated human hair polyamide fibers; heat setting temperature was 150 ℃.
实施例2Example 2
a.将占20份粘度3.0的PA66与一定份数的色母粒高速混合器内均匀混合后，在120℃下进行干燥8h，干燥后的水分控制在80ppm以下；b.将步骤a中混合料通过双螺杆造粒机形成带条，在冷却水中冷却成型，经切粒机后形成稀释的色母切片；c.将提前干燥好的80份粘度为2.8的PA6和步骤b中的色母切片分别在120℃及110℃下进行干燥6h，干燥后的水分控制在40PPm以下；d.将步骤c中干燥后的混合切片，与一定比例的增塑剂经过失重计量秤按比例下料至螺杆挤出机，在240-250℃下进行熔融挤压，形成纺丝熔融液；e.步骤d中的纺丝熔融液以80-110kg/cm 2的压力由螺杆机头经过弯管而进入纺丝箱体内原料管道，经过计量泵增压后通过纺丝组件挤出，再经过纺丝甬道由侧吹风缓冷；f.将步骤e所制得的，经一次上油、150m/min卷绕形成初生纤维；g.将步骤f制得的初生纤维经预热、一次拉伸2.5倍；h.将步骤g中拉伸后的纤维再经过紧张热定型、二次上油、烘干、冷却处理后，即得到一种聚酰胺类仿人发纤维；热定型温度为150℃。 a. After uniformly mixing 20 parts of PA66 with a viscosity of 3.0 and a certain amount of masterbatch in a high-speed mixer, drying at 120 ° C for 8 hours, the moisture after drying is controlled below 80ppm; b. Mixing in step a The material is formed into a strip by a twin-screw granulator, cooled and formed in cooling water, and then a diluted masterbatch slice is formed after the granulator; c. 80 parts of PA6 with viscosity of 2.8 and the masterbatch in step b are dried in advance The slices are dried at 120 ° C and 110 ° C for 6h respectively, and the moisture after drying is controlled below 40PPm; d. The mixed slices dried in step c are discharged with a certain proportion of plasticizer through a weightlessness weighing scale to The screw extruder is melt extruded at 240-250 ° C to form a spinning melt; e. The spinning melt in step d enters from the screw head through the elbow at a pressure of 80-110 kg / cm 2 The raw material pipeline in the spinning box is extruded through the spinning assembly after being pressurized by the metering pump, and then is slowly cooled by the side blowing through the spinning shaft; f. The oil prepared in step e is oiled at 150m / min once Winding to form nascent fibers; g. The nascent fibers prepared in step f are preheated and stretched at one time 2.5 H. After the fibers drawn in step g are subjected to tension heat setting, secondary oiling, drying, and cooling treatment, a polyamide-like human hair fiber is obtained; the heat setting temperature is 150 ° C.
实施例1、2所制得的一种聚酰胺类仿人发纤维，其性能测评方法如下：The polyamide-like human hair fiber prepared in Examples 1 and 2 has the following performance evaluation methods:
梳理性：最终毛发，长30cm，用梳子梳100次，观测毛发纠缠程度。Combing rationality: The final hair, 30 cm long, was combed 100 times with a comb, and the degree of hair entanglement was observed.
手感：最终毛发，长30cm，手摸。Feel: The final hair is 30cm long and touched by hand.
弹性：最终毛发，长30cm，用卷发器在相同的温度下进行卷曲，观测卷曲程度。Elasticity: The final hair, 30 cm long, is curled at the same temperature with a curling iron, and the degree of curling is observed.
成型度：最终毛发，长30cm，在相同的温度下定型，观测曲度及长度变化。Forming degree: the final hair is 30 cm long, set at the same temperature, and observe the change of curvature and length.
聚合性：最终毛发，长30cm，目测，观测毛发松散程度。Polymerization: The final hair, 30 cm long, is visually observed to observe the degree of looseness of the hair.
纤度：最终毛发，长30cm，称重，计算毛发纤度大小。Fineness: The final hair is 30cm long, weighed, and calculated the size of the hair fineness.
实施例1、2所制得的一种酰胺类仿人发纤维，其性能测试结果如表1：The amide-like human hair fiber prepared in Examples 1 and 2 has the performance test results shown in Table 1:
测试项目Test items 梳理性Rationalize 手感Feel 弹性elasticity 成型度Molding degree 聚合性Polymerization 直径(μm)Diameter (μm)
实施例1Example 1 ●● ●● △△ ●● △△ 85-9585-95
实施例2Example 2 ●● ●● ●● △△ ●● 65-7565-75
表1，其中，●，好；△，一般；○，较差。Table 1, where, ●, good; △, fair; ○, poor.

Claims (10)

  1. 一种发用耐高温聚酰胺类纤维的制备方法，其特征在于包括以下步骤：A preparation method of high temperature resistant polyamide fiber for hair is characterized by comprising the following steps:
    将所需聚酰胺树脂重量的20～40％与其他原料经制备形成色母切片，Prepare 20-40% of the weight of the polyamide resin and other raw materials to form masterbatch slices,
    将剩余的聚酰胺树脂与得到的色母切片经制备形成纺丝熔融液，The remaining polyamide resin and the obtained masterbatch chips are prepared to form a spinning melt,
    采用上述纺丝熔融液纺丝制备所述的发用耐高温聚酰胺类纤维。The above-mentioned spinning melt spinning is used to prepare the high temperature resistant polyamide fiber for hair.
  2. 如权利要求1所述的发用耐高温聚酰胺类纤维的制备方法，其特征在于所述的制备形成色母切片的步骤包括The method for preparing high-temperature-resistant polyamide fiber for hair according to claim 1, wherein the step of preparing a masterbatch chip includes
    聚酰胺树脂与其他原料混合后干燥至水分在80PPm以下，干燥温度为90-120℃；The polyamide resin is mixed with other raw materials and dried until the moisture is below 80PPm, and the drying temperature is 90-120 ℃;
    干燥后的混合料通过双螺杆造粒机在210-280℃下形成带条，在冷却水中快速冷却成型，经切粒机后形成稀释的色母切片。The dried mixture is formed into a strip at 210-280 ° C by a twin-screw granulator, rapidly cooled and formed in cooling water, and then a diluted masterbatch slice is formed after the granulator.
  3. 如权利要求1所述的发用耐高温聚酰胺类纤维的制备方法，其特征在于制备形成纺丝熔融液的步骤包括：The method for preparing a high-temperature-resistant polyamide fiber for hair according to claim 1, wherein the step of preparing the spinning melt includes:
    剩余的聚酰胺树脂与色母切片混合后干燥至水分在80PPm以下，干燥温度为90-120℃；The remaining polyamide resin and masterbatch chips are mixed and dried until the moisture is below 80PPm, and the drying temperature is 90-120 ℃;
    干燥后的混合料下料至螺杆挤出机，进行熔融挤压，熔融温度为220-280℃，使各组分刚刚熔融，形成纺丝熔融液。The dried mixture is discharged into a screw extruder and melt-extruded at a melting temperature of 220-280 ° C, so that the components are just melted to form a spinning melt.
  4. 如权利要求1所述的发用耐高温聚酰胺类纤维的制备方法，其特征在于采用上述纺丝熔融液纺丝制备所述的发用耐高温聚酰胺类纤维的步骤包括：The method for preparing high temperature resistant polyamide fiber for hair according to claim 1, wherein the step of preparing the high temperature resistant polyamide fiber for hair by using the spinning melt spinning comprises:
    纺丝熔融液以60-120kg/cm 2的压力由螺杆机头经过弯管而进入纺丝箱体内原料管道，经过计量泵增压后通过纺丝组件挤出，再经过纺丝甬道由侧吹风或环吹风缓冷； The spinning melt is fed into the raw material pipe of the spinning box by the screw head through the elbow at a pressure of 60-120kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly, and then blows from the side through the spinning shaft Or circulate and cool slowly;
    经一次上油、卷绕形成初生纤维，卷绕速度为130-170m/min；After primary oiling and winding to form primary fibers, the winding speed is 130-170m / min;
    初生纤维经预热，一次拉伸2.0-5.5倍，二次上油，再经过紧张热定型及冷却 处理，紧张热定型的温度为110-190℃。The primary fiber is preheated, stretched 2.0-5.5 times at a time, oiled twice, and then subjected to tension heat setting and cooling treatment. The temperature for tension heat setting is 110-190 ° C.
  5. 如权利要求4所述的发用耐高温聚酰胺类纤维的制备方法，其特征在于拉伸倍数为2.5-4.0倍。The method for preparing high temperature resistant polyamide fiber for hair according to claim 4, characterized in that the draw ratio is 2.5-4.0 times.
  6. 一种发用耐高温聚酰胺类纤维的制备方法，其特征在于包括以下步骤：A preparation method of high temperature resistant polyamide fiber for hair is characterized by comprising the following steps:
    将聚酰胺树脂、色母粒及辅助剂混合后在90-120℃下干燥去除水分，干燥后的水分控制在80PPm以下，After mixing the polyamide resin, masterbatch and auxiliary agent, it is dried at 90-120 ° C to remove moisture. The moisture after drying is controlled below 80PPm.
    干燥后的混合料通过双螺杆造粒机形成带条，在冷却水中快速冷却成型，经切粒机后形成稀释的色母切片，The dried mixture is formed into a strip through a twin-screw granulator, and then rapidly cooled and formed in cooling water. After passing through the granulator, a diluted masterbatch slice is formed.
    将色母切片在90-120℃下干燥去除水分，干燥后的水分控制在80PPm以下，将色母切片进行熔融挤压，使各组分刚刚熔融，形成纺丝熔融液，The masterbatch chips are dried at 90-120 ° C to remove moisture. The moisture after drying is controlled below 80PPm. The masterbatch chips are melt-extruded so that the components are just melted to form a spinning melt.
    纺丝熔融液以60-120kg/cm 2的压力由螺杆机头经过弯管而进入纺丝箱体内原料管道，经过计量泵增压后通过纺丝组件挤出，再经过纺丝甬道由侧吹风或环吹风缓冷， The spinning melt is fed into the raw material pipe of the spinning box by the screw head through the elbow at a pressure of 60-120kg / cm 2 , after being pressurized by the metering pump, it is extruded through the spinning assembly, and then blows from the side through the spinning shaft Or circulate and cool slowly,
    缓冷后经一次上油、卷绕形成初生纤维；After slow cooling, the primary fiber is formed by oiling and winding once;
    的初生纤维经预热、一次拉伸2.0-5.5倍、二次上油；再经过紧张热定型及冷却处理。The primary fiber is preheated, stretched 2.0-5.5 times in one time, and oiled twice; then subjected to intense heat setting and cooling treatment.
  7. 如权利要求1或6所述的发用耐高温聚酰胺类纤维的制备方法，其特征在于所述的聚酰胺树脂采用PA6、PA66、PA610、PA1010、PA12及芳香族聚酰胺等均聚物、共聚物中的一种或多种混合。The method for preparing high-temperature resistant polyamide fiber for hair according to claim 1 or 6, characterized in that the polyamide resin uses homopolymers such as PA6, PA66, PA610, PA1010, PA12 and aromatic polyamide, One or more of the copolymers are mixed.
  8. 如权利要求1或6所述的发用耐高温聚酰胺类纤维的制备方法，其特征在于所述的聚酰胺树脂粘度在2.60-3.60之间。The method for preparing high temperature resistant polyamide fiber for hair according to claim 1 or 6, wherein the viscosity of the polyamide resin is between 2.60 and 3.60.
  9. 如权利要求1或6所述的发用耐高温聚酰胺类纤维的制备方法，其特征在于其他原料包括色母粒和助剂。The preparation method of high temperature resistant polyamide fiber for hair according to claim 1 or 6, characterized in that other raw materials include masterbatch and auxiliary agent.
  10. 一种发用耐高温聚酰胺类纤维，采用权利要求1～9任一方法制备得到。A high temperature resistant polyamide fiber for hair is prepared by any method of claims 1-9.
PCT/CN2019/081684 2018-10-12 2019-04-08 High-temperature-resistant polyamide fiber for high-quality artificial human hair wig and preparation method therefor WO2020073628A1 (en)

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CN112210845A (en) * 2020-09-17 2021-01-12 河南瑞贝卡发制品股份有限公司 Coiled fiber capable of being shaped at high temperature and repeatedly processed and preparation method thereof

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