CN113235201A - Superfine chinlon 6DTY colored yarn and preparation method thereof - Google Patents

Superfine chinlon 6DTY colored yarn and preparation method thereof Download PDF

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Publication number
CN113235201A
CN113235201A CN202110530568.4A CN202110530568A CN113235201A CN 113235201 A CN113235201 A CN 113235201A CN 202110530568 A CN202110530568 A CN 202110530568A CN 113235201 A CN113235201 A CN 113235201A
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6dty
chinlon
superfine
colored yarn
parts
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CN113235201B (en
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李斌
陈庆维
戴淑莲
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Zhejiang Century Morning Star Fiber Technology Co ltd
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Zhejiang Century Morning Star Fiber Technology Co ltd
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    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44Yarns or threads characterised by the purpose for which they are designed
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • D01D5/088Cooling filaments, threads or the like, leaving the spinnerettes
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • D01D5/096Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/12Stretch-spinning methods
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D02G3/328Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/06Load-responsive characteristics
    • D10B2401/061Load-responsive characteristics elastic
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/06Load-responsive characteristics
    • D10B2401/063Load-responsive characteristics high strength
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/22Physical properties protective against sunlight or UV radiation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The application relates to the technical field of spinning, and particularly discloses superfine nylon 6DTY colored yarn and a preparation method thereof, wherein the nylon 6DTY colored yarn is prepared from the following raw materials in parts by weight: 80-100 parts of nylon 6 slices, 4-8 parts of color master batch, 2-4 parts of light-resistant agent, 1-3 parts of stabilizer, 0.5-0.8 part of titanium dioxide, 0.6-1 part of glass fiber and 0.5-0.8 part of polyethylene wax; the light resisting agent comprises at least one of white bamboo charcoal powder and poplar powder; the preparation method comprises the following steps: mixing the light-resistant agent, the stabilizer, the titanium dioxide, the glass fiber and the polyethylene wax together, and uniformly mixing to obtain a mixture; mixing the chinlon 6 slices, the color master batch and the mixture together, and performing melt extrusion, spinning and cooling to obtain chinlon POY precursor; drawing, twisting, oiling, winding, inspecting and packaging the chinlon POY protofilament to obtain superfine chinlon 6DTY colored yarn; the superfine chinlon 6DTY colored yarn has the advantages of small strength loss and good light resistance under long-term illumination.

Description

Superfine chinlon 6DTY colored yarn and preparation method thereof
Technical Field
The application relates to the technical field of spinning, in particular to superfine chinlon 6DTY colored yarn and a preparation method thereof.
Background
The nylon generally refers to nylon, common nylon products in the market are nylon 6 and nylon 66, and the nylon 6 has good wear resistance and durability and has wide application in the aspects of clothing, umbrellas, carpets and the like.
The colored nylon-6 DTY yarn is colored nylon-6 stretch yarn, is usually prepared by mixing nylon-6 slices, color master batches and other raw materials, performing melt extrusion and spinning steps to obtain nylon POY, stretching and twisting the nylon POY and the like, has certain elasticity, and is mainly used for producing underwear, gloves and other articles. At present, the fine denier of the fiber is the trend of the chemical fiber fashion, and compared with the common nylon 6DTY colored yarn, the superfine nylon 6DTY colored yarn has better softness, and is more and more popular with the public.
Through the related technology, the light resistance of the current superfine nylon 6DTY colored yarn is poor, and the breakage of macromolecular chains in nylon is easily caused under long-time illumination, so that the strength of the nylon 6DTY colored yarn is reduced.
Disclosure of Invention
In order to reduce the strength loss of the superfine nylon 6DTY colored yarn under long-time illumination and enhance the light resistance, the application provides the superfine nylon 6DTY colored yarn and a preparation method thereof.
In a first aspect, the application provides a superfine nylon 6DTY colored yarn, which adopts the following technical scheme:
the superfine chinlon 6DTY colored yarn is prepared from the following raw materials in parts by weight:
80-100 parts of chinlon 6 slices;
4-8 parts of color master batch;
2-4 parts of a light resistant agent;
1-3 parts of a stabilizer;
0.5-0.8 part of titanium dioxide;
0.6-1 part of glass fiber;
0.5-0.8 part of polyethylene wax;
the light resisting agent comprises at least one of white bamboo charcoal powder and poplar wood powder.
By adopting the technical scheme, the light-resistant agent, the titanium dioxide and the glass fiber are added into the raw materials of the nylon 6DTY colored yarn for cooperation, so that the strength loss of the nylon 6DTY under long-term illumination is reduced; the light-resistant agent is preferably one or two of white bamboo charcoal powder and poplar powder, and is matched with the stabilizer together to absorb or shield substances such as ultraviolet rays in illumination, so that the damage of the illumination to the strength of the nylon 6DTY colored yarn is reduced, and the strength of the nylon 6DTY colored yarn is improved; the main component of the glass fiber is silicon dioxide, and after the silicon dioxide is matched with titanium dioxide and a light-resistant agent, on one hand, the reflection shielding effect of the light-resistant agent on ultraviolet rays is enhanced, and on the other hand, the nylon 6DTY colored yarn is endowed with better strength; after the polyethylene wax is combined with the titanium dioxide, the light resistant agent and the glass fiber, the raw materials are dispersed, so that the dispersing performance of the raw materials is enhanced, and the strength of the nylon-6 DTY is further enhanced; in conclusion, by adding the light-resistant agent, the titanium dioxide, the glass fiber and other raw materials to be matched, the strength loss of the nylon 6DTY under long-term illumination is reduced, and the strength of the nylon 6DTY is further improved.
Preferably, the light-resistant agent consists of white bamboo charcoal powder and poplar wood powder, and the weight ratio of the white bamboo charcoal powder to the poplar wood powder is 1 (1-3).
By adopting the technical scheme, the light-resistant agent is formed by preferably combining the white bamboo charcoal powder and the poplar wood powder, the weight ratio of the white bamboo charcoal powder to the poplar wood powder is preferably selected, the white bamboo charcoal powder to the poplar wood powder is better matched with the raw materials such as titanium dioxide, a stabilizer, glass fiber and the like, and the loss of the strength of the chinlon 6DTY under the long-term illumination condition is further reduced.
Preferably, the stabilizing agent consists of zirconium oxide and sericite, and the weight ratio of the zirconium oxide to the sericite is 1 (1-2).
By adopting the technical scheme, the stabilizing agent consisting of the zirconium oxide and the sericite is preferably selected, and the nylon 6DTY is endowed with better strength and light resistance after being matched with the light resistance agent; the zirconium oxide is used as superfine powder with narrow particle size distribution and acts with sericite with better stability, so that the stability of the nylon 6DTY is enhanced, and meanwhile, the zirconium oxide is further matched with a light resistant agent, and the loss of the strength of the nylon 6DTY under illumination is reduced.
Preferably, the raw material of the superfine nylon-6 DTY colored yarn also comprises 0.8-2 parts by weight of a reinforcing agent, wherein the reinforcing agent comprises at least one of palm powder and nano calcium carbonate.
By adopting the technical scheme, the reinforcing agent consisting of one or two of palm powder and nano calcium carbonate is added into the raw materials of the nylon 6DTY colored yarn, and the raw materials are matched with a light-resistant agent to absorb or refract ultraviolet rays together, so that the damage of illumination to the nylon 6DTY colored yarn is reduced, the toughness of the nylon 6DTY colored yarn is enhanced, and the strength is improved.
In a second aspect, the application provides a preparation method of superfine chinlon 6DTY colored yarn, which adopts the following technical scheme: a preparation method of superfine chinlon 6DTY colored yarn comprises the following steps:
s1, mixing the light resistant agent, the stabilizer, the titanium dioxide, the glass fiber and the polyethylene wax together, and uniformly mixing to obtain a mixture; s2, mixing the chinlon 6 slices, the color master batches and the mixture together, and performing melt extrusion, spinning and cooling to obtain chinlon POY precursor;
s4, carrying out drafting, twisting, oiling, winding, inspecting and packaging on the chinlon POY protofilament to obtain the superfine chinlon 6DTY colored filament.
By adopting the technical scheme, the colored nylon-6 DTY yarns are mixed step by step, and are subjected to melt extrusion, drafting and other steps, so that the nylon-6 DTY with better light resistance and strength is obtained.
Preferably, the reinforcing agent is added in step S1 and mixed with the light-resistant agent, the stabilizer, the titanium pigment, the glass fiber and the polyethylene wax.
By adopting the technical scheme, the reinforcing agent is added into the raw material of the chinlon 6DTY colored yarn and mixed together to obtain the chinlon 6DTY colored yarn with better light resistance and strength.
Preferably, in the step S2, the melt extrusion temperature is 250 ℃ to 260 ℃, and the outlet melt pressure is 10-13 MPa.
By adopting the technical scheme, the temperature and the pressure of melt extrusion are controlled, the melted raw materials are effectively and stably extruded, and the chinlon 6DTY colored yarn with good stability and light resistance is obtained.
Preferably, in the cooling step of step S3, the spun yarn is cooled by cross-air blowing, the temperature is controlled to be 15-18 ℃, the humidity is controlled to be 90-95%, and the wind speed is 0.3-0.5 m/S.
By adopting the technical scheme, the temperature, the humidity and the wind speed in the cooling process are controlled, the friction between the tows is reduced, and meanwhile, the tows are cooled to form filaments, so that the chinlon 6DTY colored filaments with better fineness and strength are obtained.
Preferably, in the step S4, oiling is performed by using an oil agent, where the oil agent includes the following raw materials in parts by weight:
60-70 parts of isooctyl stearate;
5-10 parts of moringa seed oil;
1-3 parts of fatty alcohol-polyoxyethylene ether;
1-2 parts of a light shielding agent.
By adopting the technical scheme, the filament obtained by spinning is lubricated by adopting isooctyl stearate and moringa seed oil, and the colored nylon-6 DTY filament is further protected by adopting the light shielding agent, so that the light resistance is improved, and the damage of long-term illumination to the strength of the colored nylon-6 DTY filament is reduced.
Preferably, the light shielding agent comprises at least one of sweet wormwood herb powder and grape seed extract.
By adopting the technical scheme, one or two of sweet wormwood powder and grape seed extract are preferably selected as light shielding agents, so that the light resistance and the strength of the chinlon 6DTY colored yarn are further enhanced.
In summary, the present application has the following beneficial effects:
1. as one or two of the white bamboo charcoal powder and the poplar powder are used as light-resistant agents and are matched with the titanium dioxide, the glass fiber and the stabilizer, the light-resistant performance of the superfine nylon 6DTY colored yarn is enhanced and the strength is improved; the light resistance agent is matched with the stabilizer to absorb or shield ultraviolet rays under the illumination condition, so that the aging degree of the superfine nylon 6DTY colored yarn is reduced, and the light resistance is enhanced; the added titanium dioxide and glass fiber are matched with a light-resistant agent to endow the superfine nylon 6DTY colored yarn with better strength and light resistance.
2. In the application, zirconium oxide and sericite are preferably used as stabilizers to enhance the strength loss of the superfine nylon 6DTY colored yarn under illumination; the reinforcing agent consisting of one or two of palm powder and nano calcium carbonate is added into the raw material of the superfine nylon-6 DTY colored yarn, so that the strength of the superfine nylon-6 DTY colored yarn is further enhanced.
3. According to the method, the raw materials are added step by step, and the temperature, the pressure, the temperature, the humidity and the wind speed in the melting extrusion process, the cooling process are controlled, so that the chinlon 6DTY colored yarn with good fineness, strength and light resistance is obtained; the components of the oil agent in the oiling process are preferably selected, so that the damage of illumination to the strength of the superfine nylon 6DTY colored yarn is further reduced while the superfine nylon 6DTY colored yarn is lubricated.
Detailed Description
The present application is described in further detail below.
The components and manufacturers in the examples are shown in Table 1.
TABLE 1 Components and manufacturers
Components Model/specification Manufacturer of the product
Nylon-6 chip 01 Chemical Co Ltd of Jinan Quantai
Color master batch 2117 Red Xian Zhenghong polymer materials Co Ltd
Bamboo charcoal powder 0099 Nanchang city bamboo Shengfu nanometer science and technology limited
Poplar powder 007 Shijiazhuang feiji mineral products Co Ltd
Zirconium oxide LA-9R Shandong Li-ang New Material science and technology Co Ltd
Sericite WM-1250 LINGSHOU HUAJING MICA Co.,Ltd.
Quartz powder FC-FSP Fucai mineral products Co Ltd in Donghai county
Titanium white powder ZDSM-titanium dioxide Commercial and business Limited of Jinan Zhiding
Glass fiber FC-GFP Fucai mineral products Co Ltd in Donghai county
Polyethylene wax 2019023OA9 Hefei Qihong polymer material Co.,Ltd.
Palm powder 9784 Shanxi Murphy Biotech Co Ltd
Nano calcium carbonate TS-01 Lingshou Guanghui mineral products processing Co Ltd
Stearic acid isooctyl ester kds987545 Conditis chemical industry (Hubei) Co Ltd
Moringa seed oil / Hubei Union pharmaceutical Co Ltd
Fatty alcohol polyoxyethylene ether 111-09-3 Nantong Runfeng petrochemical Co., Ltd
Sweet wormwood powder HQ1107 Shaanxi Hunengda Biotech Co Ltd
Grape seed extract 002 Saint Biotech Ltd of Ning Shaanguo
Turmeric powder TY-180925 Sanyuan Tian Yuan biologicals Ltd
Examples
Example 1:
the superfine chinlon 6DTY colored yarn comprises the following specific components in parts by weight as shown in Table 2, and is prepared by the following steps:
s1, mixing and stirring the light-resistant agent, the stabilizer, the titanium dioxide, the glass fiber and the polyethylene wax together at the stirring speed of 1000r/min to obtain a mixture after uniform stirring; mixing and stirring isooctyl stearate and fatty alcohol-polyoxyethylene ether at the stirring speed of 900r/min to obtain an oil agent after uniform stirring;
s2, mixing the chinlon 6 slices, the color master batches and the mixture together, and performing melt extrusion, wherein the melt extrusion temperature is 240 ℃, and the outlet melt pressure is 9 MPa; post-spinning at 260 ℃ and 3500m/min, cooling, and cooling by cross air blow at 20 ℃, 98% humidity and 0.6m/s to obtain polyamide POY precursor; s4, drawing the polyamide POY precursor with the drawing multiple of 1.1, then twisting with the D/Y ratio of 1.60, then oiling with an oiling agent with the oiling rate of 10 wt%, and then winding, inspecting and packaging to obtain the superfine polyamide 6DTY colored yarn.
Example 2A superfine Chinlon 6DTY colored yarn is different from example 1 in specific components and weight, and the specific components and weight are shown in Table 2.
Examples 3-4A superfine Nylon 6DTY colored yarn, which is different from example 1 in the composition of the light-resistant agent, comprises the specific components and the weight shown in Table 2.
Examples 5 to 6A superfine Chinlon 6DTY colored yarn, which is different from example 1 in the components of the stabilizer, comprises the specific components and the weight as shown in Table 2.
Examples 7 to 8 a superfine nylon 6DTY colored yarn, which is different from example 1 in that a reinforcing agent is added in step S1 and mixed with a light resistant agent, a stabilizer, titanium dioxide, glass fiber and polyethylene wax, and the specific components and weights thereof are shown in table 2.
Example 9A colored ultrafine Chinlon 6DTY yarn, which is different from example 1 in that the melt extrusion temperature is 250 ℃ and the outlet melt pressure is 10MPa in step S2.
Example 10A colored ultrafine Chinlon 6DTY yarn, which is different from example 1 in that the melt extrusion temperature is 260 ℃ and the outlet melt pressure is 13MPa in step S2.
Example 11: the difference between the superfine nylon-6 DTY colored yarn and the embodiment 1 is that in the cooling step of the step S3, the spun yarn is cooled by adopting cross air blow, the temperature is controlled to be 15 ℃, the humidity is 90 percent, and the air speed is 0.5 m/S.
Example 12: a difference between the superfine nylon-6 DTY colored yarn and the embodiment 1 is that in the cooling step of the step S3, the spun yarn is cooled by adopting cross air blow, the temperature is controlled to be 18 ℃, the humidity is controlled to be 95%, and the air speed is 0.3 m/S.
Examples 13 to 14, a colored ultra-fine nylon 6DTY yarn, which is different from example 1 in that the components and weight of the finish oil in step S4 are different, and the specific components and weight are shown in Table 2.
Examples 15 to 16, a superfine chinlon 6DTY colored yarn, which is different from example 14 in that the components and weight of the light-shielding agent in the finish are different, and the specific components and weight are shown in Table 2.
Example 17A superfine Chinlon 6DTY colored yarn, which is different from example 1 in that the colored yarn comprises the following specific components by weight as shown in Table 2, and comprises the following preparation steps:
s1, mixing and stirring the light resisting agent, the reinforcing agent, the stabilizing agent, the titanium dioxide, the glass fiber and the polyethylene wax together at the stirring speed of 1000r/min to obtain a mixture after uniform stirring; mixing and stirring isooctyl stearate, moringa seed oil, fatty alcohol-polyoxyethylene ether and a light shielding agent at the stirring speed of 900r/min, and uniformly stirring to obtain an oil agent;
s2, mixing the chinlon 6 slices, the color master batches and the mixture together, and performing melt extrusion, wherein the melt extrusion temperature is 250 ℃, and the outlet melt pressure is 10 MPa; post-spinning at 260 ℃ and 3500m/min, cooling, and cooling by cross air blow at 15 ℃, 90% humidity and 0.5m/s to obtain polyamide POY precursor; s4, drawing the polyamide POY precursor with the drawing multiple of 1.1, then twisting with the D/Y ratio of 1.60, then oiling with an oiling agent with the oiling rate of 10 wt%, and then winding, inspecting and packaging to obtain the superfine polyamide 6DTY colored yarn.
Example 18A superfine Chinlon 6DTY colored yarn, which is different from example 1 in that the colored yarn comprises the following specific components by weight as shown in Table 2, and comprises the following preparation steps:
s1, mixing and stirring the light resisting agent, the reinforcing agent, the stabilizing agent, the titanium dioxide, the glass fiber and the polyethylene wax together at the stirring speed of 1000r/min to obtain a mixture after uniform stirring; mixing and stirring isooctyl stearate, moringa seed oil, fatty alcohol-polyoxyethylene ether and a light shielding agent at the stirring speed of 900r/min, and uniformly stirring to obtain an oil agent;
s2, mixing the chinlon 6 slices, the color master batches and the mixture together, and performing melt extrusion, wherein the melt extrusion temperature is 260 ℃, and the outlet melt pressure is 13 MPa; post-spinning at 260 ℃ and 3500m/min, cooling, and cooling by cross air blow at 18 ℃, 95% humidity and 0.3m/s to obtain polyamide POY precursor;
s4, drawing the polyamide POY precursor with the drawing multiple of 1.1, then twisting with the D/Y ratio of 1.60, then oiling with an oiling agent with the oiling rate of 10 wt%, and then winding, inspecting and packaging to obtain the superfine polyamide 6DTY colored yarn.
TABLE 2 specific compositions and weights of examples 1-8, examples 13-18
Figure BDA0003067589340000061
Figure BDA0003067589340000071
Comparative example
Comparative example 1A colored nylon-6 DTY yarn was prepared, which was different from example 1 in that it did not contain white bamboo charcoal powder.
Comparative example 2A colored nylon-6 DTY yarn was prepared, which was different from example 1 in that poplar powder was not contained.
Comparative example 3A colored nylon-6 DTY yarn was prepared, which was different from example 1 in that it did not contain a light stabilizer.
Comparative example 4A chinlon 6DTY colored yarn is different from the example 1 in that titanium dioxide is not contained.
Comparative example 5A colored nylon-6 DTY yarn was prepared, which was different from example 1 in that it contained no glass fiber.
Comparative example 6A chinlon 6DTY colored yarn is different from example 1 in that titanium dioxide and glass fiber are not contained.
Comparative example 7A colored nylon-6 DTY yarn, which is different from example 1 in that it does not contain titanium dioxide, glass fiber and light-resistant agent.
Comparative example 8A chinlon 6DTY colored yarn is prepared by the following steps:
(1) and (3) drying: drying the chinlon 6 slices, nano calcium carbonate and nano silicon dioxide; the components are as follows: 75kg of nylon 6 slices, 30kg of nano calcium carbonate and 20kg of nano silicon dioxide; wherein the chinlon 6 slice is from the chemical industry Co., Ltd of Jinnan Quantai, and the model is 01; the nano calcium carbonate is from Cishi county, Calamine products processing Co., Ltd, and has a model number of TS-01; the nanometer silicon dioxide is obtained from Hangzhou Hengge nanometer technology GmbH, and has model number of HN-SP 30B.
(2) Preparing a spinning fluid: precisely adding nano calcium carbonate and nano silicon dioxide by using a master batch output annotation pump, and mixing and melting the nano calcium carbonate and the nano silicon dioxide with the chinlon 6 slices;
(3) spinning: extruding the molten fiber-forming high polymer melt from the spinneret orifices of the spinneret, cooling and solidifying the melt in ambient air (or water) to form filaments, and keeping stable temperature, humidity and pressure in the production process, wherein the temperature in the spinning process is 255-258 ℃; the fineness and the strength and the elongation of the fiber are ensured to be uniform, and the production is also ensured to be stable and normal;
(4) post-processing: and sequentially carrying out drawing twisting, post twisting, pressure washing, drying, heat setting, balancing, rewinding, packaging and inspection on the prepared fibers to finally obtain a finished product.
Detection method
Experiment one: sun-aging resistance experiment sample: the superfine nylon 6DTY colored yarns of the examples 1-18 and the comparative examples 1-8 are adopted, the superfine nylon 6DTY colored yarns of the examples 1-18 are respectively named as experimental samples 1-18, the superfine nylon 6DTY colored yarns obtained in the comparative examples 1-8 are respectively named as comparative samples 1-8, and 5 of the experimental samples 1-18 and the comparative samples 1-8 are adopted.
An experimental instrument: a universal material testing machine (the manufacturer is Suzhou Teh instrument science and technology Co., Ltd., model number SHK-A105); an ultraviolet lamp (the manufacturer is Beijing Hai Yingwei science and technology Co., Ltd., model number H75W).
The experimental method comprises the following steps: uniformly fixing an experimental sample on a glass plate, placing the glass plate in a closed black box provided with an ultraviolet lamp, wherein the vertical distance between the ultraviolet lamp and the glass plate is 20cm, the test condition is 23 ℃, the relative humidity is 65%, irradiating the glass plate for 40 hours under the ultraviolet lamp, using a universal material testing machine, respectively detecting the breaking strength of the experimental sample before and after ultraviolet irradiation according to GB/T7689.5-2013 test standard, and calculating the strength loss rate; for example, the breaking strength before and after the ultraviolet irradiation of 5 experimental samples 1 is detected, the strength loss rates are calculated respectively, and the average value of the strength loss rates of the 5 experimental samples 1 is taken as the final strength loss rate of the experimental sample 1; the strength loss rate was calculated in the manner of (breaking strength value before irradiation-breaking strength value after irradiation)/breaking strength value before irradiation × 100%; the test samples 2 to 18 and the comparative samples 1 to 8 were subjected to the sun aging test according to the above test method.
The experimental results are as follows: the results of the sun-aging resistance test for the test samples 1 to 18 and the comparative samples 1 to 8 are shown in Table 3.
Experiment two: sensory evaluation experiments experimental samples: the superfine nylon 6DTY colored yarns of the examples 1-18 and the comparative examples 1-8 are adopted, the superfine nylon 6DTY colored yarns of the examples 1-18 are respectively named as experimental samples 1-18, the superfine nylon 6DTY colored yarns obtained in the comparative examples 1-8 are respectively named as comparative samples 1-8, and 5 of the experimental samples 1-18 and the comparative samples 1-8 are adopted.
An experimental instrument: an ultraviolet lamp (the manufacturer is Beijing Hai Yingwei science and technology Co., Ltd., model number H75W).
The experimental method comprises the following steps: uniformly fixing the experimental sample on a glass plate, placing the glass plate in a closed black box provided with an ultraviolet lamp, wherein the vertical distance between the ultraviolet lamp and the glass plate is 20cm, the test condition is 23 ℃, the relative humidity is 65%, irradiating the glass plate for 40 hours under the ultraviolet lamp, observing the aging, damage and other conditions of the experimental sample, and grading; if aging, breakage and the like occur, the condition is represented by '1'; if aging, breakage, or the like does not occur, it is represented by "0".
Sensory evaluation tests were conducted on the test samples 2 to 18 and the comparative samples 1 to 8 according to the above-mentioned test methods.
The experimental results are as follows: sensory evaluation test results of the test samples 1 to 18 and the comparative samples 1 to 8 are shown in Table 3.
TABLE 3 results of the experiments of the experimental samples 1 to 18 and the comparative samples 1 to 8
Figure BDA0003067589340000081
Figure BDA0003067589340000091
As can be seen from the experimental data in Table 3, the strength loss ratios of the experimental samples 1 to 18 were 15.8 to 21.6%, the sensory evaluation was 0, and the degree of aging and breakage was small; comparative samples 1-8 had a loss of strength of 24.5-46.8% and a sensory rating of 1; it is shown that the experimental samples 1 to 18 have a lower strength loss ratio, a better light resistance and a higher aging resistance than the comparative samples 1 to 8.
Comparing the experimental sample 1 and the comparative samples 1 to 3, it can be known that the strength loss rate is reduced after the light resistance agent is added, which indicates that the light resistance agent is helpful for improving the light resistance of the superfine nylon 6DTY colored yarn; the white bamboo charcoal powder contains elements such as calcium, potassium, calcium carbide and the like, and after being mixed with the poplar powder, the white bamboo charcoal powder well refracts ultraviolet rays, reduces the damage of the ultraviolet rays to the superfine nylon 6DTY colored yarns, and strengthens the superfine nylon 6DTY colored yarns; comparing the experimental samples 4-7, it can be seen that the strength loss rate of the superfine nylon 6DTY colored yarn is reduced after the titanium dioxide powder, the glass fiber and the light resistant agent are added, which shows that the titanium dioxide powder, the glass fiber and the light resistant agent can enhance the light resistant performance of the superfine nylon 6DTY colored yarn.
Comparing the experimental sample 1 with the experimental samples 3-4, the weight ratio of the white bamboo charcoal powder and the poplar wood powder in the light-resistant agent is optimized, the strength loss rate of the superfine nylon 6DTY colored yarn is reduced, and the light-resistant performance is enhanced; comparing the experimental sample 1 with the experimental samples 5-6, the stabilizer is preferably composed of zirconia and sericite; comparing the experimental sample 1 with the experimental samples 7-8, the strength loss rate of the superfine nylon 6DTY colored yarn is reduced after the reinforcing agent is added, which shows that the reinforcing agent can enhance the light resistance and the strength of the superfine nylon 6DTY colored yarn; probably because the palm powder and the nano calcium carbonate toughen the nylon yarn on one hand and absorb ultraviolet rays on the other hand, the damage of ultraviolet irradiation on the strength of the superfine nylon 6DTY colored yarn is reduced. Comparing the experimental sample 1 with the experimental samples 9-12, the control of the melt extrusion temperature and pressure, and the control of the cooling temperature, humidity and other parameters are helpful for enhancing the light resistance of the superfine nylon-6 DTY colored yarn; comparing the experimental sample 1 with the experimental samples 13-14, the moringa seed oil and the light shielding agent are added into the oil agent formula, so that the aging resistance of the superfine chinlon 6DTY colored yarn is enhanced; comparing the experimental sample 14 with the experimental samples 15-16, the light-shielding agent is preferably one or two of artemisinin and grape seed extracts, and the two have better ultraviolet-proof performance, so that ultraviolet irradiation is further absorbed and shielded, the aging degree of the superfine chinlon 6DTY colored yarn is reduced, and the light-proof performance is enhanced; comparing the experimental sample 1 with the experimental samples 17-18, the raw materials of the light-resistant agent and the stabilizing agent are preferably selected, the reinforcing agent is added, the formula of the oil agent is optimized, the specific parameters in the melt extrusion and cooling processes are controlled, and the multiple raw materials are matched with each other, so that the light resistance and the aging resistance of the superfine nylon 6DTY colored yarn are enhanced.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims (10)

1. The superfine chinlon 6DTY colored yarn is characterized by being prepared from the following raw materials in parts by weight:
80-100 parts of chinlon 6 slices;
4-8 parts of color master batch;
2-4 parts of a light resistant agent;
1-3 parts of a stabilizer;
0.5-0.8 part of titanium dioxide;
0.6-1 part of glass fiber;
0.5-0.8 part of polyethylene wax;
the light resisting agent comprises at least one of white bamboo charcoal powder and poplar wood powder.
2. The superfine nylon 6DTY colored yarn as claimed in claim 1, wherein the light-resistant agent is composed of white bamboo charcoal powder and poplar wood powder, and the weight ratio of the white bamboo charcoal powder to the poplar wood powder is 1 (1-3).
3. The superfine nylon 6DTY colored yarn of claim 1, wherein the stabilizer is composed of zirconia and sericite, and the weight ratio of the zirconia to the sericite is 1 (1-2).
4. The superfine nylon 6DTY colored yarn of claim 1, further comprising 0.8-2 parts by weight of a reinforcing agent in the raw material of the superfine nylon 6DTY colored yarn, wherein the reinforcing agent comprises at least one of palm powder and nano calcium carbonate.
5. The method for preparing the superfine chinlon 6DTY colored yarn as claimed in any one of claims 1 to 4, which is characterized by comprising the following steps:
s1, mixing the light resistant agent, the stabilizer, the titanium dioxide, the glass fiber and the polyethylene wax together, and uniformly mixing to obtain a mixture;
s2, mixing the chinlon 6 slices, the color master batches and the mixture together, and performing melt extrusion, spinning and cooling to obtain chinlon POY precursor;
s4, carrying out drafting, twisting, oiling, winding, inspecting and packaging on the chinlon POY protofilament to obtain the superfine chinlon 6DTY colored filament.
6. The method for preparing superfine chinlon 6DTY colored yarn as claimed in claim 5, wherein the reinforcing agent is added in step S1 and mixed with light fastness agent, stabilizer, titanium dioxide, glass fiber and polyethylene wax.
7. The method as claimed in claim 5, wherein in step S2, the melt extrusion temperature is 250-260 ℃ and the outlet melt pressure is 10-13 MPa.
8. The method for preparing superfine chinlon 6DTY colored yarn according to claim 5, wherein in the cooling step of the step S3, the spinning is cooled by cross air blowing, the temperature is controlled to be 15-18 ℃, the humidity is 90-95%, and the air speed is 0.3-0.5 m/S.
9. The preparation method of the superfine chinlon 6DTY colored yarn as claimed in claim 5, wherein oiling is performed in the step S4 by using an oiling agent, wherein the oiling agent comprises the following raw materials in parts by weight:
60-70 parts of isooctyl stearate;
5-10 parts of moringa seed oil;
1-3 parts of fatty alcohol-polyoxyethylene ether;
1-2 parts of a light shielding agent.
10. The method for preparing an ultrafine Chinlon 6DTY colored yarn as claimed in claim 9, wherein the light shielding agent comprises at least one of Artemisia annua powder and grape seed extract.
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