CN105803571A - FDY/POY different shrinkage combined filament yarn of biomass nylon 56 fiber/PET fiber and preparing method thereof - Google Patents
FDY/POY different shrinkage combined filament yarn of biomass nylon 56 fiber/PET fiber and preparing method thereof Download PDFInfo
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- CN105803571A CN105803571A CN201610227833.0A CN201610227833A CN105803571A CN 105803571 A CN105803571 A CN 105803571A CN 201610227833 A CN201610227833 A CN 201610227833A CN 105803571 A CN105803571 A CN 105803571A
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- 239000000835 fiber Substances 0.000 title claims abstract description 193
- 229920006118 nylon 56 Polymers 0.000 title claims abstract description 73
- 239000002028 Biomass Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims description 3
- 238000009987 spinning Methods 0.000 claims abstract description 51
- 238000009835 boiling Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims description 11
- VHRGRCVQAFMJIZ-UHFFFAOYSA-N cadaverine Chemical compound NCCCCCN VHRGRCVQAFMJIZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 5
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 4
- 239000001361 adipic acid Substances 0.000 claims description 3
- 235000011037 adipic acid Nutrition 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims 1
- 229920000742 Cotton Polymers 0.000 abstract 1
- 239000004753 textile Substances 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 58
- 239000005020 polyethylene terephthalate Substances 0.000 description 58
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 238000001125 extrusion Methods 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
-
- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Artificial Filaments (AREA)
Abstract
本发明公开了一种生物质尼龙56纤维/PET纤维的FDY/POY异收缩混纤丝，其特征在于，由生物质尼龙56切片和PET切片经过纺丝制得；所述生物质尼龙56纤维为FDY纤维、PET纤维为POY纤维，或者所述生物质尼龙56纤维为POY纤维、PET纤维为FDY纤维；生物质尼龙56纤维沸水收缩率与PET纤维沸水收缩率之差不小于30％。本发明所得的生物质尼龙56纤维/PET纤维的FDY/POY异收缩混纤丝，丝束表面有细微自然的卷曲，丝束的亲水性和柔软性能得到了明显改善，可用于仿棉、仿真丝纺织品的开发。The invention discloses a FDY/POY different shrinkage mixed fiber yarn of biomass nylon 56 fiber/PET fiber, which is characterized in that it is prepared by spinning biomass nylon 56 slices and PET slices; the biomass nylon 56 fiber FDY fiber, PET fiber is POY fiber, or the biomass nylon 56 fiber is POY fiber, PET fiber is FDY fiber; the difference between the boiling water shrinkage of the biomass nylon 56 fiber and the boiling water shrinkage of the PET fiber is not less than 30%. The obtained biomass nylon 56 fiber/PET fiber FDY/POY different shrinkage mixed fiber yarn of the present invention has fine and natural crimps on the surface of the tow, and the hydrophilicity and softness of the tow have been significantly improved, and can be used for imitation cotton, Development of imitation silk textiles.
Description
技术领域technical field
本发明涉及一种生物质尼龙56纤维/PET纤维的FDY/POY异收缩混纤丝及其制备方法。The invention relates to a FDY/POY different shrinkage mixed fiber yarn of biomass nylon 56 fiber/PET fiber and a preparation method thereof.
背景技术Background technique
异收缩混纤丝是把热收缩率不同的纤维混合在一起形成的产品。该类混纤丝在后道染整加工等热处理时，热收缩率大的长丝产生较大的收缩形成芯丝，而收缩率较小的长丝会产生细微自然的卷曲浮于丝束表面，丝束截面将呈现蓬松结构，其织物具有丰满的外观风格。但是目前的异收缩混纤丝主要是由PET纤维的全牵伸丝(FDY)和预取向丝(POY)经过混纤形成，PET纤维具有高强度、高模量、尺寸稳定、化学性能稳定等优点。但由于PET纤维是线性大分子结构，缺少亲水基团，导致其的亲水性、柔软性比较差。生物基尼龙56纤维由生物基戊二胺和己二酸聚合而成，具有较好的亲水性能、回弹性，手感柔软，是一种具有广泛应用前景的生物基纤维材料。Different shrinkage mixed fiber yarn is a product formed by mixing fibers with different thermal shrinkage rates. When this type of mixed fiber yarn is heat treated in the subsequent dyeing and finishing process, the filament with a large thermal shrinkage rate will shrink to form a core filament, while the filament with a small shrinkage rate will produce fine and natural curls and float on the surface of the tow. , the tow cross-section will present a fluffy structure, and its fabric will have a full-bodied appearance. However, the current different shrinkage mixed fiber yarn is mainly formed by blending the fully drawn yarn (FDY) and pre-oriented yarn (POY) of PET fiber. PET fiber has high strength, high modulus, stable size, stable chemical properties, etc. advantage. However, since PET fiber has a linear macromolecular structure and lacks hydrophilic groups, its hydrophilicity and softness are relatively poor. Bio-based nylon 56 fiber is polymerized from bio-based pentamethylenediamine and adipic acid. It has good hydrophilic properties, resilience, and soft touch. It is a bio-based fiber material with broad application prospects.
发明内容Contents of the invention
本发明所要解决的是涤纶亲水性和柔软性差的问题。What the invention aims to solve is the problem of poor hydrophilicity and softness of polyester.
为了解决上述问题，本发明提供了一种生物质尼龙56纤维/PET纤维的FDY/POY异收缩混纤丝，其特征在于，由生物质尼龙56切片和PET切片经过纺丝制得；所述生物质尼龙56纤维为FDY纤维、PET纤维为POY纤维，或者所述生物质尼龙56纤维为POY纤维、PET纤维为FDY纤维；生物质尼龙56纤维沸水收缩率与PET纤维沸水收缩率之差不小于30％。In order to solve the above-mentioned problems, the present invention provides a kind of FDY/POY different shrinkage mixed fiber yarn of biomass nylon 56 fiber/PET fiber, it is characterized in that, is made through spinning by biomass nylon 56 chip and PET chip; Biomass nylon 56 fiber is FDY fiber, PET fiber is POY fiber, or the biomass nylon 56 fiber is POY fiber, PET fiber is FDY fiber; the difference between the boiling water shrinkage of biomass nylon 56 fiber and the boiling water shrinkage of PET fiber is the same less than 30%.
优选地，所述生物质尼龙56切片由1、5-戊二胺和1、6-己二酸经过化学反应形成的共聚物。Preferably, the biomass nylon 56 chip is a copolymer formed by chemical reaction of 1,5-pentanediamine and 1,6-adipic acid.
更优选地，所述1、5-戊二胺采用生物质为原料制备。More preferably, the 1,5-pentanediamine is prepared from biomass.
优选地，所述生物质尼龙56占混纤丝的质量百分比为10～90％。Preferably, the biomass nylon 56 accounts for 10-90% by mass of the mixed fiber yarn.
优选地，所述混纤丝的断裂强度不小于1.5cN/dtex；回潮率为0.6～5.5％。Preferably, the breaking strength of the mixed fiber yarn is not less than 1.5 cN/dtex; the moisture regain is 0.6-5.5%.
优选地，当所述生物质尼龙56纤维为FDY纤维、PET纤维为POY纤维时，所述生物质尼龙56纤维沸水收缩率与PET纤维沸水收缩率之差不小于35％；该混纤丝的断裂伸长率为35～50％；初始模量不大于50cN/dtex；回潮率0.6～5.5％。Preferably, when the biomass nylon 56 fiber is FDY fiber and the PET fiber is POY fiber, the difference between the boiling water shrinkage of the biomass nylon 56 fiber and the boiling water shrinkage of PET fiber is not less than 35%; The elongation at break is 35-50%; the initial modulus is not more than 50cN/dtex; the moisture regain is 0.6-5.5%.
优选地，当所述生物质尼龙56纤维为POY纤维、PET纤维为FDY纤维时，该混纤丝的断裂伸长率为30～50％；初始模量不大于50cN/dtex；回潮率0.6～5.5％。Preferably, when the biomass nylon 56 fiber is POY fiber and PET fiber is FDY fiber, the elongation at break of the mixed fiber yarn is 30-50%; the initial modulus is not more than 50cN/dtex; the moisture regain is 0.6- 5.5%.
本发明还提供了上述一种权利要求1-7任意一项所述的生物质尼龙56纤维/PET纤维的FDY/POY异收缩混纤丝的制备方法，将生物质尼龙56切片经过270～290℃熔融挤压、冷却固化、牵伸、卷绕成为尼龙56的FDY纤维或POY纤维；将PET切片经过280～300℃熔融挤压、冷却固化、卷绕成为PET的POY纤维或FDY纤维，将不同材料的FDY纤维和POY纤维合并为生物质尼龙56纤维/PET纤维的FDY/PET的异收缩混纤丝。The present invention also provides a preparation method of biomass nylon 56 fiber/PET fiber FDY/POY different shrinkage mixed fiber yarn described in any one of the above claims 1-7, the biomass nylon 56 is sliced through 270-290 ℃ melt extrusion, cooling and solidification, drafting, and winding into nylon 56 FDY fibers or POY fibers; PET chips are melted and extruded at 280-300°C, cooled and solidified, and wound into PET POY fibers or FDY fibers. FDY fibers and POY fibers of different materials are combined into FDY/PET different shrinkage mixed filaments of biomass nylon 56 fiber/PET fiber.
本发明制备的尼龙56纤维/PET纤维的异收缩混纤丝是将PET纤维和尼龙56纤维优点结合，既具有PET纤维良好的力学性能，又兼具尼龙56纤维良好的亲水特性。与现有PET纤维/PET纤维的FDY/POY异收缩混纤丝相比，本发明的纤维亲水和柔软性能得到有效改善，纤维的回潮率由0.4％提高到0.6～5.5％，纤维的初始模量从90～110％降低到50～36.7％。The nylon 56 fiber/PET fiber different shrinkage mixed fiber yarn prepared by the present invention combines the advantages of PET fiber and nylon 56 fiber, and not only has good mechanical properties of PET fiber, but also has good hydrophilic properties of nylon 56 fiber. Compared with the FDY/POY different shrinkage mixed fiber yarn of the existing PET fiber/PET fiber, the hydrophilic and soft properties of the fiber of the present invention are effectively improved, and the moisture regain of the fiber is increased from 0.4% to 0.6-5.5%. The modulus decreases from 90-110% to 50-36.7%.
附图说明Description of drawings
图1为预取向丝/全拉伸丝异收缩混纤丝制备装置的结构示意图。Figure 1 is a schematic diagram of the structure of the pre-oriented yarn/full-drawn yarn different shrinkage mixed fiber preparation device.
图中：In the picture:
1-第一纺丝组件；2-下导丝盘；2’-上导丝盘；3-第一转向器；4-第二纺丝组件；5-第一热辊；5’-第二热辊；6-并丝器；7-网络器；8-卷绕辊。1-the first spinning assembly; 2-the lower godet; 2'-the upper godet; 3-the first diverter; 4-the second spinning assembly; 5-the first hot roller; 5'-the second Hot roll; 6-doubling device; 7-network device; 8-winding roll.
具体实施方式detailed description
为使本发明更明显易懂，兹以优选实施例，并配合附图作详细说明如下。In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.
对比例1Comparative example 1
PET的预取向丝(POY)。Pre-oriented yarn of PET (POY).
采用如图1所示的装置制备：Adopt the device preparation as shown in Figure 1:
PET切片经150℃结晶0.5h、160℃干燥8h，经过经过螺杆挤压机280℃～300℃熔融挤压进入纺丝箱体，纺丝箱体温度290℃，纺丝液经第一纺丝组件1挤出和冷却后，依次经由速度为3200m/min的下导丝盘2和速度3240m/min的上导丝盘2’，经过第一转向器3后形成预取向丝(POY)，依次经过网络器7和卷绕辊8，最终得到PET预取向丝(POY)。其断裂强度1.30cN/dtex，断裂伸长110.0％，初始模量90.0cN/dtex，回潮率0.4％。PET slices were crystallized at 150°C for 0.5h, dried at 160°C for 8h, melted and extruded through a screw extruder at 280°C to 300°C, and entered into the spinning box with the temperature of the spinning box at 290°C, and the spinning solution passed through the first spinning After the component 1 is extruded and cooled, it passes through the lower godet 2 with a speed of 3200m/min and the upper godet 2' with a speed of 3240m/min in sequence, and then passes through the first diverter 3 to form a pre-oriented yarn (POY). Through the network device 7 and the winding roller 8, PET pre-oriented yarn (POY) is finally obtained. The breaking strength is 1.30cN/dtex, the breaking elongation is 110.0%, the initial modulus is 90.0cN/dtex, and the moisture regain is 0.4%.
实施例1Example 1
一种生物质尼龙56纤维为FDY纤维、PET纤维为POY纤维的异收缩混纤丝，生物质尼龙56纤维和PET纤维质量比为1∶9。A different shrinkage mixed fiber yarn in which biomass nylon 56 fiber is FDY fiber and PET fiber is POY fiber, and the mass ratio of biomass nylon 56 fiber and PET fiber is 1:9.
采用如图1所示的装置制备异收缩混纤丝：Adopt the device shown in Figure 1 to prepare different shrinkage mixed filaments:
生物质尼龙56切片在氮气保护下经130℃结晶0.5h、150℃干燥8h，经过螺杆挤压机270～290℃熔融挤压进入纺丝箱体，纺丝箱体温度280℃，纺丝液经第二纺丝组件4挤出和冷却后，经第一热辊5的温度为60℃，速度为1000m/min。再经过第二热辊5’的温度为100℃，速度为2800m/min，后形成全拉伸丝(FDY)，将全拉伸丝输入并丝器6。PET切片经150℃结晶0.5h、160℃干燥8h，经过螺杆挤压机280℃～300℃熔融挤压进入纺丝箱体，纺丝箱体温度290℃，纺丝液经第一纺丝组件1挤出和冷却后，依次经由速度为2780m/min的下导丝盘2和速度2800m/min的上导丝盘2’，经过第一转向器3后形成预取向丝(POY)，输入并丝器6。并丝器6将所有输入的丝合并后，依次经过网络器7和卷绕辊8，最终得到生物质尼龙56(FDY)/PET(POY)异收缩混纤丝。混纤丝断裂强度1.50cN/dtex，断裂伸长35.0％，初始模量50.0cN/dtex，回潮率0.6％，异收缩率40.0％。Biomass nylon 56 slices were crystallized at 130°C for 0.5h and dried at 150°C for 8h under the protection of nitrogen, and then melted and extruded into the spinning box at 270-290°C by a screw extruder. The temperature of the spinning box was 280°C. After being extruded and cooled by the second spinning assembly 4, the temperature of the first hot roller 5 is 60° C., and the speed is 1000 m/min. Then the temperature of the second hot roller 5' is 100°C, and the speed is 2800m/min to form a fully drawn yarn (FDY), and the fully drawn yarn is input into the doubling device 6. PET chips are crystallized at 150°C for 0.5h, dried at 160°C for 8h, melted and extruded by a screw extruder at 280°C to 300°C, and enter the spinning box. The temperature of the spinning box is 290°C, and the spinning solution passes through the first spinning assembly. 1. After extrusion and cooling, pass through the lower godet 2 with a speed of 2780m/min and the upper godet 2' with a speed of 2800m/min in turn, and pass through the first diverter 3 to form a pre-oriented yarn (POY), which is input and silk device6. After the yarn doubling device 6 combines all the input yarns, it passes through the network device 7 and the winding roller 8 in sequence, and finally obtains biomass nylon 56 (FDY)/PET (POY) different shrinkage mixed fiber yarns. The breaking strength of mixed fiber yarn is 1.50cN/dtex, the breaking elongation is 35.0%, the initial modulus is 50.0cN/dtex, the moisture regain is 0.6%, and the different shrinkage rate is 40.0%.
实施例2Example 2
一种生物质尼龙56纤维为FDY纤维、PET纤维为POY纤维的异收缩混纤丝，生物质尼龙56纤维和PET纤维质量比为1∶1。A kind of different shrinkage mixed fiber yarn in which biomass nylon 56 fiber is FDY fiber and PET fiber is POY fiber, and the mass ratio of biomass nylon 56 fiber and PET fiber is 1:1.
采用如图1所示的装置制备异收缩混纤丝：Adopt the device shown in Figure 1 to prepare different shrinkage mixed filaments:
生物质尼龙56切片在氮气保护下经130℃结晶0.5h、150℃干燥8h，，经过螺杆挤压机270～290℃熔融挤压进入纺丝箱体，纺丝箱体温度280℃，纺丝液经第二纺丝组件4挤出和冷却后，经第一热辊5的温度为60℃，速度为1000m/min。再经过第二热辊5’的温度为100℃，速度为2800m/min，后形成全拉伸丝(FDY)，将全拉伸丝输入并丝器6。PET切片经150℃结晶0.5h、160℃干燥8h，经过螺杆挤压机280℃～300℃熔融挤压进入纺丝箱体，纺丝箱体温度290℃，纺丝液经第一纺丝组件1挤出和冷却后，依次经由速度为2780m/min的下导丝盘2和速度2800m/min的上导丝盘2’，经过第一转向器3后形成预取向丝(POY)，输入并丝器6。并丝器6将所有输入的丝合并后，依次经过网络器7和卷绕辊8，最终得到生物质尼龙56(FDY)/PET(POY)异收缩混纤丝。混纤丝断裂强度3.65cN/dtex，断裂伸长40.7％，初始模量42.9cN/dtex，回潮率2.8％，异收缩率37.2％。Biomass nylon 56 slices were crystallized at 130°C for 0.5h and dried at 150°C for 8h under the protection of nitrogen, and then melted and extruded into the spinning box through a screw extruder at 270-290°C. The temperature of the spinning box was 280°C. After the liquid is extruded and cooled by the second spinning assembly 4, the temperature of the first hot roller 5 is 60° C., and the speed is 1000 m/min. Then the temperature of the second hot roller 5' is 100°C, and the speed is 2800m/min to form a fully drawn yarn (FDY), and the fully drawn yarn is input into the doubling device 6. PET chips are crystallized at 150°C for 0.5h, dried at 160°C for 8h, melted and extruded by a screw extruder at 280°C to 300°C, and enter the spinning box. The temperature of the spinning box is 290°C, and the spinning solution passes through the first spinning assembly. 1 After extruding and cooling, pass through the lower godet 2 with a speed of 2780m/min and the upper godet 2' with a speed of 2800m/min in turn, and pass through the first diverter 3 to form a pre-oriented yarn (POY), which is input and silk device6. After the yarn doubling device 6 combines all the input yarns, it passes through the network device 7 and the winding roller 8 in sequence, and finally obtains biomass nylon 56 (FDY)/PET (POY) different shrinkage mixed fiber yarns. The breaking strength of mixed fiber yarn is 3.65cN/dtex, the breaking elongation is 40.7%, the initial modulus is 42.9cN/dtex, the moisture regain is 2.8%, and the differential shrinkage is 37.2%.
实施例3Example 3
一种生物质尼龙56纤维为FDY纤维、PET纤维为POY纤维的异收缩混纤丝，生物质尼龙56纤维和PET纤维质量比为9∶1。A different-shrinkage mixed fiber yarn in which biomass nylon 56 fiber is FDY fiber and PET fiber is POY fiber, and the mass ratio of biomass nylon 56 fiber to PET fiber is 9:1.
采用如图1所示的装置制备异收缩混纤丝：Adopt the device shown in Figure 1 to prepare different shrinkage mixed filaments:
生物质尼龙56切片在氮气保护下经130℃结晶0.5h、150℃干燥8h，经过螺杆挤压机270～290℃熔融挤压进入纺丝箱体，纺丝箱体温度280℃，纺丝液经第二纺丝组件4挤出和冷却后，经第一热辊5的温度为60℃，速度为1000m/min。再经过第二热辊5’的温度为100℃，速度为2800m/min，后形成全拉伸丝(FDY)，将全拉伸丝输入并丝器6。PET切片经150℃结晶0.5h、160℃干燥8h，经过螺杆挤压机280℃～300℃熔融挤压进入纺丝箱体，纺丝箱体温度290℃，纺丝液经第一纺丝组件1挤出和冷却后，依次经由速度为2780m/min的下导丝盘2和速度2800m/min的上导丝盘2’，经过第一转向器3后形成预取向丝(POY)，输入并丝器6。并丝器6将所有输入的丝合并后，依次经过网络器7和卷绕辊8，最终得到生物质尼龙56(FDY)/PET(POY)异收缩混纤丝。混纤丝断裂强度5.00cN/dtex，断裂伸长50.0％，初始模量36.7cN/dtex，回潮率5.5％，异收缩率35.0％。Biomass nylon 56 slices were crystallized at 130°C for 0.5h and dried at 150°C for 8h under the protection of nitrogen, and then melted and extruded into the spinning box at 270-290°C by a screw extruder. The temperature of the spinning box was 280°C. After being extruded and cooled by the second spinning assembly 4, the temperature of the first hot roller 5 is 60° C., and the speed is 1000 m/min. Then the temperature of the second hot roller 5' is 100°C, and the speed is 2800m/min to form a fully drawn yarn (FDY), and the fully drawn yarn is input into the doubling device 6. PET chips are crystallized at 150°C for 0.5h, dried at 160°C for 8h, melted and extruded by a screw extruder at 280°C to 300°C, and enter the spinning box. The temperature of the spinning box is 290°C, and the spinning solution passes through the first spinning assembly. 1. After extrusion and cooling, pass through the lower godet 2 with a speed of 2780m/min and the upper godet 2' with a speed of 2800m/min in turn, and pass through the first diverter 3 to form a pre-oriented yarn (POY), which is input and silk device6. After the yarn doubling device 6 combines all the input yarns, it passes through the network device 7 and the winding roller 8 in sequence, and finally obtains biomass nylon 56 (FDY)/PET (POY) different shrinkage mixed fiber yarns. The breaking strength of mixed fiber yarn is 5.00cN/dtex, the breaking elongation is 50.0%, the initial modulus is 36.7cN/dtex, the moisture regain is 5.5%, and the different shrinkage rate is 35.0%.
对比例2Comparative example 2
PET的全牵伸丝(FDY)。Fully drawn yarn (FDY) of PET.
采用如图1所示的装置制备PET的全牵伸丝(FDY)：The fully drawn yarn (FDY) of PET is prepared by the device shown in Figure 1:
PET切片经150℃结晶0.5h、160℃干燥8h，经过螺杆挤压机280℃～300℃熔融挤压进入纺丝箱体，纺丝箱体温度290℃，纺丝液经第二纺丝组件4挤出和冷却后，经第一热辊5的温度为100℃，速度为1000m/min。再经过第二热辊5’的温度为120℃，速度为2800m/min，后形成全拉伸丝(FDY)，将全拉伸丝输入并丝器6，网络器7和卷绕辊8，最终得到PET的全牵伸丝(FDY)。PET的全牵伸丝(FDY)。其断裂强度4.20cN/dtex，断裂伸长27.0％，初始模量110cN/dtex，回潮率0.4％。PET chips are crystallized at 150°C for 0.5h, dried at 160°C for 8h, melted and extruded by a screw extruder at 280°C to 300°C, and enter the spinning box at a temperature of 290°C, and the spinning solution passes through the second spinning assembly 4 After extrusion and cooling, the temperature of the first hot roller 5 is 100°C and the speed is 1000m/min. Then the temperature of the second hot roller 5' is 120°C and the speed is 2800m/min to form a fully drawn yarn (FDY), and the fully drawn yarn is input into the doubling device 6, the network device 7 and the winding roller 8 Finally, fully drawn yarn (FDY) of PET is obtained. Fully drawn yarn (FDY) of PET. The breaking strength is 4.20cN/dtex, the breaking elongation is 27.0%, the initial modulus is 110cN/dtex, and the moisture regain is 0.4%.
实施例4Example 4
一种生物质尼龙56纤维为POY纤维、PET纤维为FDY纤维的异收缩混纤丝，生物质尼龙56纤维和PET纤维质量比为1∶9。A kind of different shrinkage mixed fiber yarn in which biomass nylon 56 fiber is POY fiber and PET fiber is FDY fiber, and the mass ratio of biomass nylon 56 fiber and PET fiber is 1:9.
采用如图1所示的装置制备异收缩混纤丝：Adopt the device shown in Figure 1 to prepare different shrinkage mixed filaments:
生物质尼龙56切片在氮气保护下经130℃结晶0.5h、150℃干燥8h，经过螺杆挤压机270～290℃熔融挤压进入纺丝箱体，纺丝箱体温度280℃，纺丝液经第一纺丝组件1挤出和冷却后，依次经由速度为2780m/min的下导丝盘2和速度2800m/min的上导丝盘2’，经过第一转向器3后形成预取向丝(POY)，输入并丝器6。PET切片经150℃结晶0.5h、160℃干燥8h，经过螺杆挤压机280℃～300℃熔融挤压进入纺丝箱体，纺丝箱体温度290℃，纺丝液经第二纺丝组件4挤出和冷却后，经第一热辊5的温度为100℃，速度为1000m/min。再经过第二热辊5’的温度为105℃，速度为2800m/min，后形成全拉伸丝(FDY)，将全拉伸丝输入并丝器6。并丝器6将所有输入的丝合并后，依次经过网络器7和卷绕辊8，最终得到生物质尼龙56(POY)/PET(FDY)异收缩混纤丝。混纤丝断裂强度4.00cN/dtex，断裂伸长30.0％，初始模量50cN/dtex，回潮率0.6％，异收缩率35％。Biomass nylon 56 slices were crystallized at 130°C for 0.5h and dried at 150°C for 8h under the protection of nitrogen, and then melted and extruded into the spinning box at 270-290°C by a screw extruder. The temperature of the spinning box was 280°C. After being extruded and cooled by the first spinning assembly 1, it passes through the lower godet 2 with a speed of 2780m/min and the upper godet 2' with a speed of 2800m/min, and then passes through the first diverter 3 to form a pre-oriented yarn (POY), input parallel wire device 6. PET chips are crystallized at 150°C for 0.5h, dried at 160°C for 8h, melted and extruded by a screw extruder at 280°C to 300°C, and enter the spinning box at a temperature of 290°C, and the spinning solution passes through the second spinning assembly 4 After extrusion and cooling, the temperature of the first hot roller 5 is 100°C and the speed is 1000m/min. The temperature of passing through the second heat roller 5' is 105 DEG C again, and the speed is 2800m/min to form a fully drawn yarn (FDY), and the fully drawn yarn is input into the doubling device 6. After the yarn doubling device 6 combines all the input yarns, it passes through the network device 7 and the winding roller 8 in sequence, and finally obtains biomass nylon 56 (POY)/PET (FDY) different shrinkage mixed fiber yarns. The breaking strength of mixed fiber yarn is 4.00cN/dtex, the breaking elongation is 30.0%, the initial modulus is 50cN/dtex, the moisture regain is 0.6%, and the differential shrinkage is 35%.
实施例5Example 5
一种生物质尼龙56纤维为POY纤维、PET纤维为FDY纤维的异收缩混纤丝，生物质尼龙56纤维和PET纤维质量比为1∶1。A kind of different shrinkage mixed fiber yarn in which biomass nylon 56 fiber is POY fiber and PET fiber is FDY fiber, and the mass ratio of biomass nylon 56 fiber and PET fiber is 1:1.
采用如图1所示的装置制备异收缩混纤丝：Adopt the device shown in Figure 1 to prepare different shrinkage mixed filaments:
生物质尼龙56切片在氮气保护下经130℃结晶0.5h、150℃干燥8h，经过螺杆挤压机270～290℃熔融挤压进入纺丝箱体，纺丝箱体温度280℃，纺丝液经第一纺丝组件1挤出和冷却后，依次经由速度为2780m/min的下导丝盘2和速度2800m/min的上导丝盘2’，经过第一转向器3后形成预取向丝(POY)，输入并丝器6。PET切片经150℃结晶0.5h、160℃干燥8h，经过螺杆挤压机280℃～300℃熔融挤压进入纺丝箱体，纺丝箱体温度290℃，纺丝液经第二纺丝组件4挤出和冷却后，经第一热辊5的温度为100℃，速度为1000m/min。再经过第二热辊5’的温度为105℃，速度为2800m/min，后形成全拉伸丝(FDY)，将全拉伸丝输入并丝器6。并丝器6将所有输入的丝合并后，依次经过网络器7和卷绕辊8，最终得到生物质尼龙56(POY)/PET(FDY)异收缩混纤丝。混纤丝断裂强度1.85cN/dtex，断裂伸长47％，初始模量45.9cN/dtex，回潮率2.8％，异收缩率35.3％。Biomass nylon 56 slices were crystallized at 130°C for 0.5h and dried at 150°C for 8h under the protection of nitrogen, and then melted and extruded into the spinning box at 270-290°C by a screw extruder. The temperature of the spinning box was 280°C. After being extruded and cooled by the first spinning assembly 1, it passes through the lower godet 2 with a speed of 2780m/min and the upper godet 2' with a speed of 2800m/min in sequence, and then passes through the first diverter 3 to form a pre-oriented yarn (POY), input parallel wire device 6. PET chips are crystallized at 150°C for 0.5h, dried at 160°C for 8h, melted and extruded by a screw extruder at 280°C to 300°C, and enter the spinning box at a temperature of 290°C, and the spinning solution passes through the second spinning assembly 4 After extrusion and cooling, the temperature of the first hot roller 5 is 100°C and the speed is 1000m/min. The temperature of passing through the second heat roller 5' is 105 DEG C again, and the speed is 2800m/min to form a fully drawn yarn (FDY), and the fully drawn yarn is input into the doubling device 6. After the yarn doubling device 6 combines all the input yarns, it passes through the network device 7 and the winding roller 8 in sequence, and finally obtains biomass nylon 56 (POY)/PET (FDY) different shrinkage mixed fiber yarns. The breaking strength of mixed fiber yarn is 1.85cN/dtex, the breaking elongation is 47%, the initial modulus is 45.9cN/dtex, the moisture regain is 2.8%, and the differential shrinkage is 35.3%.
实施例6Example 6
一种生物质尼龙56纤维为POY纤维、PET纤维为FDY纤维的异收缩混纤丝，生物质尼龙56纤维和PET纤维质量比为9∶1。A different-shrinkage mixed fiber yarn in which the biomass nylon 56 fiber is POY fiber and the PET fiber is FDY fiber, and the mass ratio of biomass nylon 56 fiber and PET fiber is 9:1.
采用如图1所示的装置制备异收缩混纤丝：Adopt the device shown in Figure 1 to prepare different shrinkage mixed filaments:
生物质尼龙56切片在氮气保护下经130℃结晶0.5h、150℃干燥8h，经过螺杆挤压机270～290℃熔融挤压进入纺丝箱体，纺丝箱体温度280℃，纺丝液经第一纺丝组件1挤出和冷却后，依次经由速度为2780m/min的下导丝盘2和速度2800m/min的上导丝盘2’，经过第一转向器3后形成预取向丝(POY)，输入并丝器6。PET切片经150℃结晶0.5h、160℃干燥8h，经过螺杆挤压机280℃～300℃熔融挤压进入纺丝箱体，纺丝箱体温度290℃，纺丝液经第二纺丝组件4挤出和冷却后，经第一热辊5的温度为100℃，速度为1000m/min。再经过第二热辊5’的温度为105℃，速度为2800m/min，后形成全拉伸丝(FDY)，将全拉伸丝输入并丝器6。并丝器6将所有输入的丝合并后，依次经过网络器7和卷绕辊8，最终得到生物质尼龙56(POY)/PET(FDY)异收缩混纤丝。混纤丝断裂强度1.50cN/dtex，断裂伸长50.0％，初始模量38cN/dtex，回潮率5.5％，异收缩率30.0％。Biomass nylon 56 slices were crystallized at 130°C for 0.5h and dried at 150°C for 8h under the protection of nitrogen, and then melted and extruded into the spinning box at 270-290°C by a screw extruder. The temperature of the spinning box was 280°C. After being extruded and cooled by the first spinning assembly 1, it passes through the lower godet 2 with a speed of 2780m/min and the upper godet 2' with a speed of 2800m/min, and then passes through the first diverter 3 to form a pre-oriented yarn (POY), input parallel wire device 6. PET chips are crystallized at 150°C for 0.5h, dried at 160°C for 8h, melted and extruded by a screw extruder at 280°C to 300°C, and enter the spinning box at a temperature of 290°C, and the spinning solution passes through the second spinning assembly 4 After extrusion and cooling, the temperature of the first hot roller 5 is 100°C and the speed is 1000m/min. The temperature of passing through the second heat roller 5' is 105 DEG C again, and the speed is 2800m/min to form a fully drawn yarn (FDY), and the fully drawn yarn is input into the doubling device 6. After the yarn doubling device 6 combines all the input yarns, it passes through the network device 7 and the winding roller 8 in sequence, and finally obtains biomass nylon 56 (POY)/PET (FDY) different shrinkage mixed fiber yarns. The breaking strength of mixed fiber yarn is 1.50cN/dtex, the breaking elongation is 50.0%, the initial modulus is 38cN/dtex, the moisture regain is 5.5%, and the different shrinkage rate is 30.0%.
注1：聚戊二胺己二酸简称为尼龙56，聚对苯二甲酸乙二醇酯简称为PET。Note 1: Polypentamethylenediamine adipate is abbreviated as nylon 56, and polyethylene terephthalate is abbreviated as PET.
注2：回潮率测试采用GB/T6503-2008标准测试，初始模量采用GB/T14344-2008标准测试。Note 2: The moisture regain test adopts the GB/T6503-2008 standard test, and the initial modulus adopts the GB/T14344-2008 standard test.
表1：尼龙56纤维为FDY/PET纤维为POY组分Table 1: Nylon 56 fiber as FDY/PET fiber as POY component
表2：尼龙56纤维为POY/PET纤维为FDY组分Table 2: Nylon 56 fiber as POY/PET fiber as FDY component
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