WO2017071201A1 - Functional nylon 66 fabric and manufacturing method thereof - Google Patents

Abstract

The invention relates to a functional nylon 66 fabric and manufacturing method thereof. The method is characterized by the following steps: 1) selecting a material; 2) applying a yarn spinning technique; 3) applying a weaving technique; and 4) applying a fabric arrangement technique after dyeing. The fabric has features of the yarn being fine, thick and dense, and having increased tightness. Despite being a simple flat pattern, the fabric has a robust and tough structure, increased tear resistance and favorable wear resistance. As a high-count nylon taffeta fabric, the fabric can be used to make not only a jacket or a trench coat, but also sportswear or casual wear. Since the fabric has a relatively high density thread, it can also serve as a preferable fabric for making a down jacket for reducing the weight of winter clothes. As a down coat fabric, the fabric has a high downproof property, favorable thermal properties, is soft and light, fine and smooth, easy to clean and quick to dry, easy to manage, does not readily fade, provides warmth by reflecting off light and preventing energy loss, and activates body cells by generating resonance and heat by friction, providing health benefits.

Description

Functional nylon 66 fabric and preparation method thereof Technical field

The invention relates to a preparation method of a fabric, and the specific design relates to a functional nylon 66 fabric and a preparation method thereof, and belongs to the technical field of textile and functional textile.

Background technique

Humans have a long history of research on functional textiles. China is also committed to the research of functional fibers and fabrics, and has developed some products, but in terms of variety, quantity, function and quality, it is still unable to meet the growing needs. The development of products with good functional effects and strong performance has broad prospects. In recent years, the application fields of functional fabrics have been expanding, especially new technology fibers and high-grade functional fabrics, which have become the focus of the industry's development potential, and the market demand is huge. New technology textile products adapt to the changes in people's lifestyles and the pursuit of practical, convenient, healthy and comfortable expectations, to provide a guarantee of perfect quality of life.

With the increasing pressure on people's lives and work, more and more people are engaged in leisure and outdoor sports, and the production and sales of functional textiles are also expanding. The research and industrialization process of functional textiles in China has developed rapidly. Textiles with functions of waterproofing, oil proofing, decontamination, antibacterial and deodorizing, far infrared, anti-ultraviolet, antistatic, anti-electromagnetic radiation, fire retardant and high moisture absorption have been successively It is brought to market and is favored and favored by consumers. At present, the global functional textile market has sales of 50 billion US dollars per year. It is reported that the sales of functional textiles in the future will increase by 3.8% per year, while the demand for domestic functional textiles will be more than 50 billion yuan. As far as the market application status of functional textiles is concerned, compared with foreign countries, China's functional textile market still has a lot of room for expansion. When consumer demand is continuously subdivided, when people are more advocating in different environments such as work and life, they choose When distinguishing functional textiles, the research and development of functional textiles in China will continue to show an increasing trend.

At present, the textile industry has entered a fierce competitive environment, and functional fabrics have met different lines. The special needs of the industry and different groups of people meet the individual needs of different consumers. Due to these different needs, the variety of textile markets has become colorful, and functional fabrics have become the target and research direction of many companies. Many fabric and apparel companies at home and abroad have fully realized the importance of the development of functional products for enterprises to expand the market, and actively carry out research and development, production and promotion of related products. In the future market environment, functional fabrics must become the mainstay of the fabric market, and textile companies still need to constantly pursue innovation in fabric products.

In the recent market, functional fabrics have shown a good sales momentum. Currently, the functional fabrics on the market are mainly fabrics, which can be used for the production of outdoor sportswear, casual wear and other functional fabrics. High-end men's and women's clothing, which produces highlights. It is expected that the demand for functional fabrics will gradually expand, and textile companies still need to constantly pursue innovation in fabric products.

Summary of the invention

In order to solve the above problems, the present invention discloses a functional nylon 66 fabric and a preparation method thereof. The fabric is characterized in that the yarn has fine denier and high density, and the tightness is large; although the tissue is simple plain weave, the texture is firm. It has the advantages of high tear strength and good wear resistance. As a high-density silk fabric, it can not only make jackets and windbreakers, but also make sportswear and casual wear. Because of its relatively high density, it is light in winter. Today, it is a good fabric for down jackets. As a down jacket fabric, it is super anti-velvet, cold and warm, light and soft, delicate and smooth, easy to wash and dry, easy to care, does not fade, and reduces energy loss through reflection of light. It plays a role in keeping warm, through resonance, friction and heat generation, and activates cells to play a role in health care.

In order to achieve the above object, the technical solution of the present invention is as follows, a functional nylon 66 fabric and a preparation method thereof, characterized in that the method comprises the following steps: 1) raw material matching; 2) spinning process; 3) weaving Process; 4) Finishing process after dyeing.

As an improvement of the present invention, the raw materials in the step 1) are selected as follows: 160 cm half Matting nylon 66 DTY 22.2dtex/16F (20D/16F) × semi-dull quantum energy nylon 66 DTY 55.5dtex / 23F (50D / 23F) 720 / 10 cm × 550 / 10 cm.

Production process:

The nylon 66 fiber-forming polymer is heated and melted in a screw extruder, and the melt is extruded from a spinning hole through a metering pump to form a fine stream, and the melt stream is cooled and solidified, and the yarn is stretched and oiled by being oiled and wound. Fine and fiber.

Since the molecular weight of the nylon matrix is reduced after the blending, the crystallinity of the fiber is lowered, so that the post-treatment is easier to carry out; the quantum energy nylon 66 masterbatch is more uniform as the additive and the dispersion of the nylon 66 matrix polymer. It is beneficial to uniformly disperse the quantum energy powder in the nylon 66 matrix resin. The fiber properties obtained by direct spinning of the blended masterbatch are superior to the direct addition of the quantum powder to the nylon 66 matrix polymer blend spinning.

Preparation of quantum energy nylon 66 masterbatch, mixing quantum energy powder with dispersant coupling agent, melt co-extrusion by twin-screw extruder, water cooling, pelletizing, drying and packaging to obtain quantum energy nylon 66 masterbatch; The nylon 66 masterbatch contains 85-95% of the quantum energy powder, 5%-8% of the dispersing agent, and 1%-3% of the coupling agent according to the mass fraction; further, the quantum energy nylon 66 masterbatch contains the mass fraction according to the mass fraction. Quantum energy powder 91%, dispersant 7%, coupling agent 2%. The composition of the quantum energy nanopowder is a natural mineral such as silica, alumina or potassium oxide. The surface is rich in polar groups such as silicic hydroxyl groups. The surface energy is high and the self-agglomeration is strong. The coupling agent passes the chemical. Modification can effectively improve the interaction between the surface of the quantum powder and the nylon 66 polymer, but weaken the interaction between the quantum energy powder. Adding a small amount of dispersant can improve the quantum energy powder in the nylon 66 polymer. Dispersion and strengthening of the interaction between quantum energy powder, but can not effectively improve the role of quantum energy powder and nylon 66 polymer, therefore, at the same time adding coupling agent and dispersant, dispersant up to 7%, coupling agent When the ratio is 2%, the effect is best, so that the quantum powder dispersing performance is improved, and the compatibility with the nylon 66 polymer is improved, and no agglomeration occurs.

As an improvement of the present invention, the spinning process is specifically as follows: a twin-screw extruder with a screw diameter of 25 mm is used to prepare a mother particle of nylon 66 and quantum energy powder, and after blending and granulating, the slice is dried at 105 ° C. Dry to remove the moisture, the quantum energy powder reaches 18% in the quantum energy nylon 66 masterbatch; the twin-screw extruder main engine speed: 800 ~ 1000r / min, feeding speed: 600 ~ 700r / min, pelletizing Machine speed: 1000 ~ 1100r / min, temperature control in each zone of 1 ~ 8 zone: 235 ° C, 255 ° C, 270 ° C, 275 ° C, 280 ° C, 280 ° C, 275 ° C and 270 ° C; using a single screw spinning machine, Screw diameter 25mm, length / diameter ratio 30, screw speed 7 ~ 9rpm, spinneret 80 holes, single hole diameter 0.25mm, spin hole length / diameter ratio 2, wire cooling using 24-26 °C air conditioning air cooling The two-step heat-drawing nylon 66 fiber and quantum energy nylon 66 fiber have a winding rate of 300-450 m/min.

As an improvement of the present invention, the weaving process is as follows: (1) warping, warping machine, the total number of warping roots is 11,520, wherein the number of side yarns is 60×2; the number of warping yarns is 1440, and the speed is 280 m. /min, coiling tension 5kg, pressure roller pressure 1.5kg/cm ² , warping shaft hardness 80°; (2) parallel shaft, shaft machine, vehicle speed 50m/min, decompression tension 8kg, winding tension 100kg, taper 5%, and the number of shafts is 8, the width of the door is 182.8cm, and the shaft hardness is 85°, (3) the pulp, the tension of the creel is 5kg, the winding tension is 8kg, the immersion pressure is 2.5kg/cm ² , and the pressure is 2.6kg. /cm ² , slurry temperature (°C) 45°C; oven temperature (°C) 145°C*145°C; cylinder temperature (°C) 120°C*120°C*115°C*115°C*110°C ^, vehicle speed 180m/min, The slurry concentration is 17 grids, the sizing rate is 15%, the pulp shaft hardness is 83°, and the slurry preparation formula: J-500 type jet weaving nylon special pulp 15kg, flat plus 1kg, antistatic agent l kg, antifriction agent 0.5kg, supply The barrel is fixed at 0.9M3, the supply barrel temperature is 98-100°C, the pulping barrel is fixed at 1000L, the slurry concentration is 12%, (4) the wear comprehensive: 筘号22#; the width is 182.8cm, the number of the heald frame is 2 pages 6 ^column, 1,2,3,4,5,6 worn fully organized, comprehensive tissue edge wear 1, 2, 3, 4, 5, 6, ground comprehensive number 1, edge organization number 1, ground tissue intrusion number 3; edge tissue intrusion number 3, (5) weaving process technical parameters: water spray Loom; speed 500 rpm; upper machine weft density 136 / inch; open type electronic dobby; opening time 330 degrees; water spray time 100 degrees; water spray 8mm ^, water spray pressure 55mm, rear beam height 60mm; : 3 grids, 4mm spacers, 175.5-176cm on-board control; 3 horses; temperature/relative humidity (°C/%): 25±2°C/65±3%; (6) finishing process, The length of the finished product is 120m; the width is 1m; the 3-5mm is added; the length of the package is 600m.

As an improvement of the present invention, the post-dye finishing process is as follows:

1) Desizing process, due to the large sizing rate and the difficulty of desizing, the nylon desizing agent DC-EDC with good penetration, emulsifying and dispersing properties is selected. The specific process is as follows:

Process: Into the cloth, a desizing, a soaping, a hot water, a cold water washing;

The process recipe is:

Nylon desizing agent DC-EDC: 5g/L,

Penetrant M-7705: 1 ~ 2g / L.

Process conditions:

Desizing temperature: 98 ° C,

Soaping temperature: 90 ° C ~ 80 ° C,

Hot water washing temperature: 70 ° C ~ 50 ° C.

2) Dyeing process,

Acid dyes are used for dyeing. The higher the temperature, the faster the dyeing rate is, and the color dye is easy to produce. In order to obtain a uniform dyeing effect as much as possible, a dyeing process with a gradual temperature rise is adopted, and the dyeing temperature starts from 40 ° C, and then gradually increases to 40 ° C. 98 ° C, continued dyeing for 50 minutes;

The process recipe is:

3) Fixing process

In order to make the fabric have higher color fastness, the process is as follows:

The process prescription is acid fixing agent N-SG: 2.0g/L,

Glacial acetic acid: 0.5g/L,

4) Shape

Process equipment: hot air tenter setting machine;

Process flow: into the cloth, an auxiliary tank, a weft, a drying, 3 to 4 boxes, a tenter, a cylinder, a cooling cloth, and a roll;

Process conditions: the setting temperature is 140 ° C, and the setting time is 60 s.

Compared with the prior art, the advantages of the present invention are as follows. The functional nylon 66 fabric warp yarn developed by the present invention is selected from nylon 66 filament, and the chemical composition name of nylon 66 is polyhexamethylene adipamide, which is composed of adipic acid and hexamethylene. A polycondensation of an amine, a thermoplastic resin containing a repeating amide group - [NHCO] in the main chain of the molecule, consisting of a linear macromolecule bearing an amide bond [NHCO]. There are -CO-, -NH- groups in the molecule, which can form hydrogen bonds between molecules or molecules, and can also be combined with other molecules, so the moisture absorption ability is better, and the flexibility, elastic recovery rate and resistance of nylon fibers are resistant. The abrasion, alkali resistance, hygroscopicity and light weight are better than those of polyester fiber. The most outstanding advantage of nylon 66 fiber is that the abrasion resistance is higher than all other fibers, which is 10 times higher than cotton abrasion resistance and higher than wool. 20 times, when stretched to 3-6%, the elastic recovery rate can reach 100%; can withstand tens of thousands of times without breaking. The strength of nylon 66 fiber is 1-2 times higher than that of cotton and 4-5 times higher than wool, which is 3 times that of viscose. In recent years, the ultraviolet radiation on the surface of the earth has increased rapidly, and the incidence of skin allergies and skin cancer has been increasing. For this reason, it is urgent to develop fibers that are resistant to ultraviolet rays and provide people with clothing and fabrics that are resistant to ultraviolet radiation. The far-infrared fiber fabric has excellent health care, moisture venting and antibacterial function. It can absorb the heat emitted by the body itself, absorb and emit it back. The far-infrared rays of the most needed wavelength of the body promote blood circulation and have a warming effect. The ideal far-infrared fabric has good insulation, antibacterial and physiotherapy functions. Due to the small size effect and macroscopic quantum effect of nano-scale quantum energy powder, the quantum energy nylon 66 filament developed by quantum energy powder and nylon 66 has good anti-UV function and good wear resistance. The use of quantum energy nylon 66 fiber in product development is an effective way to achieve UV and far infrared resistance, and is also a channel for product development and added value. The functional nylon fabric developed by the technical solution utilizes a new material nano-sized quantum energy powder capable of releasing far-infrared rays as a functional generator, and is melt-spun by a master batch method to form a quantum energy nylon 66 fiber. The functional nylon 66 fabric Quantum energy nylon 66 masterbatch with quantum energy content of 18% was added to the quantum energy powder with nylon 66 resin as the carrier. The quantum energy content was 0.7 by melt-spinning by adding the nylon particle to the nylon 66 polymer. % of quantum energy nylon 66 filament, woven fabric made of ordinary nylon 66. The fabric is characterized by fine denier, high density and tightness. Although the tissue is simple plain weave, it has firm texture and tear. High breaking strength and good wear resistance. As a high-density silk fabric, it can not only make jackets and windbreakers, but also make sportswear and casual wear. Because of its relatively high density, it is a good fabric for down jackets in today's lightweight winter clothes. As a down jacket fabric, it is super anti-velvet, cold and warm, light and soft, delicate and smooth, easy to wash and dry, easy to care, and does not fade. Through the reflection of light, the loss of energy is reduced, and the function of keeping warm is maintained. By resonance, friction generates heat, activates cells, and plays a role of health care.

DRAWINGS

Figure 1 is a graph of the dyeing process;

Figure 2 is a solid color process curve.

detailed description

In order to attain the understanding and understanding of the present invention, the invention will be further clarified by the following detailed description.

Example 1:

A functional nylon 66 fabric and a preparation method thereof, the method comprising the following steps: 1) raw material matching, the raw material selection in the step 1) is as follows: 160 cm semi-dull nylon 66 DTY 22.2 dtex/16F (20D/16F) ) × Semi-extinction quantum energy nylon 66 DTY 55.5dtex / 23F (50D / 23F) 720 / 10 cm × 550 / 10 cm.

Production process:

The nylon 66 fiber-forming polymer is heated and melted in a screw extruder, and the melt is extruded from a spinning hole through a metering pump to form a fine stream, and the melt stream is cooled and solidified, and the yarn is stretched and oiled by being oiled and wound. Fine and fiber.

Since the molecular weight of the nylon matrix is reduced after the blending, the crystallinity of the fiber is lowered, so that the post-treatment is easier to carry out; the quantum energy nylon 66 masterbatch is more uniform as the additive and the dispersion of the nylon 66 matrix polymer. It is beneficial to uniformly disperse the quantum energy powder in the nylon 66 matrix resin. The fiber properties obtained by direct spinning of the blended masterbatch are superior to the direct addition of the quantum powder to the nylon 66 matrix polymer blend spinning.

Preparation of Quantum Energy Nylon 66 Masterbatch

Preparation of quantum energy nylon 66 masterbatch, mixing quantum energy powder with dispersant coupling agent, melt co-extrusion by twin-screw extruder, water cooling, pelletizing, drying and packaging to obtain quantum energy nylon 66 masterbatch; The nylon 66 masterbatch contains 85-95% of the quantum energy powder, 5%-8% of the dispersing agent, and 1%-3% of the coupling agent according to the mass fraction; further, the quantum energy nylon 66 masterbatch contains the mass fraction according to the mass fraction. Quantum energy powder 91%, dispersant 7%, coupling agent 2%. The composition of the quantum energy nanopowder is a natural mineral such as silica, alumina or potassium oxide. The surface is rich in polar groups such as silicic hydroxyl groups. The surface energy is high and the self-agglomeration is strong. The coupling agent passes the chemical. Modification can effectively improve the interaction between the surface of the quantum powder and the nylon 66 polymer, but weaken the interaction between the quantum energy powder. Adding a small amount of dispersant can improve the quantum energy powder in the nylon 66 polymer. Dispersion and strengthening of quantum energy powder The interaction between the two can not effectively improve the role of quantum energy powder and nylon 66 polymer. Therefore, the coupling agent and dispersant are added at the same time, the dispersant reaches 7%, and the coupling agent reaches 2%, which is the best for quantum. The powder dispersibility is improved, and the compatibility with the nylon 66 polymer is improved, and no agglomeration occurs.

2) Spinning process, the spinning process is as follows: using a twin-screw extruder with a screw diameter of 25 mm, preparing a masterbatch of nylon 66 and quantum energy powder, after being blended and granulated, the slice is dried by an oven at 105 ° C. In order to remove the moisture therein, the quantum energy powder reaches 18% in the quantum energy nylon 66 masterbatch; wherein the twin-screw extruder main engine speed: 800-1000 r/min, the feeding speed: 600-700 r/min, the pelletizer speed : 1000～1100r/min, temperature control in each zone of 1～8 zone: 235°C, 255°C, 270°C, 275°C, 280°C, 280°C, 275°C and 270°C; using single screw spinning machine, screw diameter 25mm, length / diameter ratio of 30, screw speed of 7 ~ 9rpm, spinneret 80 holes, single hole diameter 0.25mm, spinneret length / diameter ratio 2, wire cooling using 24-26 °C air conditioning air cooling, two The stepwise hot-stretched nylon 66 fiber and quantum energy nylon 66 fiber have a winding rate of 300-450 m/min; the melting point of nylon 66 is about 255 ° C, and the decomposition temperature is about 300 ° C. Due to the narrow range between the melting temperature and the decomposition temperature of nylon 66, and the presence of adipoyl structure in the nylon 66 polymer macromolecule, the spinning melt is prone to gelation in the molten state, which makes the melt pipe gradually smaller. It affects the preventability and also makes the product quality worse. In severe cases, the pipeline will be blocked. Therefore, under the premise of ensuring sufficient melting, low degradation and good rheology, it is necessary to strictly control the spinning temperature at around 290 °C, and at the same time reduce the melt flow viscosity and extrusion swell by increasing the temperature of the spinning box. In addition, the macromolecule has fast thermal motion and strong disorientation ability, which can reduce the tension of the tow on the spinning process, reduce the pre-orientation degree of the coiled wire, and improve the spinnability of the fine filament. Melt viscosity and temperature are the main process parameters for melt spinning. At a certain temperature, the melt viscosity depends mainly on the molecular weight of the fiber-forming polymer. If the melt viscosity is too high, the flow will be uneven, so that the brilliance of the nascent fiber is easy to produce hair and break, and the melt temperature can be determined by the screw extruder. The temperature of the segment is controlled, the melt temperature is too high, which causes the polymer to degrade and form bubbles; if the temperature is too low, the melt viscosity is too high; both of which make the spinning process not work properly.

The pressure of the spinning assembly and the selection of the spinneret are critical to the smooth progress of the spinning. The initial pressure of the spinning assembly is determined by the structure of the filter layer of the spin pack after the spinning temperature is determined. The initial pressure is high and the shear stress of the melt through the filter layer and the spinneret is large. In order to ensure good melt extrusion, a certain shear rate must be achieved. This must properly increase the component pressure of the melt, increase the filtration area and accuracy, and improve the filtration effect. Improve melt rheology and improve spinnability. The initial pressure of the components we chose was 20Mpa. Considering the flow properties of the spinning melt in the orifice, as the length-to-diameter ratio of the orifice is increased, the elastic energy relaxation is also increased, and the residual elastic internal energy is reduced, thereby reducing the expansion effect at the outlet. In order to eliminate the unstable flow, the nylon 66 has a length to diameter ratio of 4 for the spinneret. There are many factors affecting the uniformity of POY strips. The most important one is the wind speed of the side blowing. If the wind speed is too large or too small, it will affect the POY strip. If the wind speed and air temperature are not properly selected, the surface layer and inner layer temperature of the yarn will be increased, and the radial viscosity of the filament melt will increase. The stress during the stretch winding will be concentrated on the surface layer with higher viscosity, which makes the surface layer easy to crack and the fiber uniformity is poor. It is easy to cause breakage, so it is especially important to choose a suitable side blower. The air temperature is controlled at 19-20 ° C, the rheumatism is 75%-80%, and the wind speed is 0.3 m/s. The position of the spinning bundling point has an important influence on the formation of the fiber. If the position of the bundling point is too high, the bundle oil will “freeze” the fiber structure with relatively high filament temperature before the macromolecule has undergone the ordered alignment in the stretching flow. At this time, the fiber structure is weak and the breaking strength is low. The elongation at break is small; the position of the bundling point is low, the friction between the tow and the air is increased, the stability of the stretching flow is deteriorated, the stretchability of the fiber is lowered, and the breaking strength and elongation are lowered. The height of the bundling point we control during the production process is 1.2m.

Nylon 66 fiber is almost dry when it is formed. It easily absorbs water from the air and becomes longer. In the high-speed spinning process, the friction of the relatively high-speed moving airflow will make the tow table. The surface is electrostatically charged, which makes the fiber cohesive force poor, which will cause difficulties in the winding and post-processing steps. Therefore, before the winding, the fiber must be oiled to the wet, the oil is insufficient, the static electricity is easily generated during the stretching, and the filament is formed, so that the stretching cannot be smoothly performed; if the oil is too high, the fiber is too smooth, and the "collapse" is easily caused. "phenomenon. The oiling rate is preferably controlled from 0.5% to 0.6%. Because the nylon 66 melt is very easy to produce gel, the spinning quality is deteriorated, the nozzle hole is blocked, the pipe diameter is thinned, and the pipe is blocked when it is serious. Therefore, the hose should be thoroughly rinsed with nylon 6 slices every time you stop, so that the nylon 66 melt is not left in the pipeline. When driving, you should also use nylon 6-slice to rinse the pipeline. After normal discharge, you can cut into nylon 66 to ensure the spinnability of the spinning.

3) Weaving process, the weaving process is as follows: (1) warping, warping machine, the total number of warping roots is 11,520, of which the number of side yarns is 60×2; the number of warping is 1440, the speed is 280m/min, Winding tension 5kg, pressure roller pressure 1.5kg/cm ² , warping shaft hardness 80°; shaft, shaft machine, vehicle speed 50m/min, decompression tension 8kg, winding tension 100kg, taper 5%, and shaft Number 8, the width of the door is 182.8cm, and the shaft hardness is 85°, (3) the pulp, the tension of the creel is 5kg, the winding tension is 8kg, the immersion pressure is 2.5kg/cm ² , the pressure of the grout is 2.6kg/cm ² , and the slurry tank Temperature (°C) 45°C; oven temperature (°C) 145°C*145°C; cylinder temperature (°C) 120°C*120°C*115°C*115°C*110°C ^, vehicle speed 180m/min, slurry concentration 17 grids, The sizing rate is 15%, the pulp shaft hardness is 83°, and the slurry preparation formula: J-500 type air-jet woven nylon special pulp 15kg, flat plus 1kg, antistatic agent l kg, anti-friction agent 0.5kg, supply barrel fixed product 0.9M3, supply The barrel temperature is 98-100°C, the pulping barrel is set to 1000L, the slurry concentration is 12%, (4) the wear comprehensive: 筘号22#; the width is 182.8cm, the number of the heald frame is 2 pages and 6 columns ^{, the} ground structure is comprehensively worn 1 , 2, 3, 4, 5, 6, side-by-side organization, 1, 2, 3, 4, 5, 6 , the number of comprehensive organization number 1, the number of side organization number 1, the number of ground tissue intrusion 3; the number of side intrusion 3, (5) technical parameters of weaving process: water jet loom; speed 500rpm; Root / inch; open type electronic multi-arm; opening time 330 degrees; water spray time 100 degrees; water spray volume 8mm ^, water spray pressure 55mm, rear beam height 60mm; stop frame height 3 grid, side support gasket 4mm, onboard control The width of the cloth is 175.5-176cm; the number of falling cloth is 3; the temperature/relative humidity (°C/%): 25±2°C/65±3%; (6) the finishing process, the length of the finished product is 120m; the folding width is 1m; 3-5mm; the length of the package is 600m; how to make the warping tension uniform and the warp beam winding flat is the key. During the warping, the number of warp yarns specified by the process is 11,520. It needs to be distributed to the winding 8 warp beams at a speed of 300 m/min. The lower warping speed is used to control the difference in tension between the yarns to ensure the tension of the yarn. As uniform as possible, with appropriate increase, control the warping elongation at about 0.4% to reduce the warp yarn breakage rate; uniform winding, uniform yarn and yarn arrangement, while ensuring smooth and smooth yarn passage, Weaving efficiency lays the foundation. The whole batch of cylinders is adopted to make the tension of the entire warp beam uniform and the flatness is good. The pressure roller used to keep the surface of the yarn wound on the warp beam smooth, the yarn can be flexibly contacted, and in order to prevent the fluffing caused by the sudden stop, the Tsudak TWN-E batch warping machine It is also equipped with a reversing device that can retract the pressure roller in an instant. These can guarantee a high quality of warping and lay the foundation for the smooth implementation of subsequent processes. The sizing process is the key. The sizing is used to improve the woven fabric, so that the sizing yarn is uniform in tension, alignment and winding density, and a good woven shaft is produced. The 22.2 dtex nylon 66 filament is a hydrophobic fiber. The static electricity is serious, the filaments are easy to loose and twist, so the bundling property is required when sizing, and it is necessary to pay attention to strengthening the cohesion between the fibers, and the adhesion of the slurry is strong. At the same time, the permeability of the slurry is good. If the permeability is not good, the slurry is difficult to penetrate into the filaments in a short time, and the surface sizing is easily formed, and good adhesion between the fibers cannot be achieved. When nylon 66 filaments are sizing, in order to prevent mutual adhesion, the filaments and the filaments should be kept at a certain distance. Generally, the whole, pulp and three-step sizing is used, that is, the warp yarns are formed into a thinner warp beam, each The warp beam is sizing into a pulp shaft, and several pulp shafts are combined into a weaving shaft. Nylon 66 fiber is a plastic fiber, which will shrink under heat. Since the three-step sizing warp yarn is warped, it has been wound into a better warp beam, which can ensure less stopping when sizing, thus avoiding such shortcomings. The functional nylon 66 fabric has a plain structure, and the warp and weft of the fabric are interlaced at intervals of one yarn, so the yarn is interlaced most frequently in the fabric, the flexion is the most, and the density is 720/10 cm. In order to improve the flatness of the fabric, it is preferable to use a large upper machine tension to make the fabric stiff and firm. Due to the high density of the warp yarn, the nylon 66 22.2dtex (20D) filament as the warp yarn is easy to fluff and the opening is unclear, so the height of the back beam can be slightly lower, so that the upper warp is too small and the opening is unclear, resulting in woven woven fabrics. Nor does it cause a large number of broken ends due to excessive tension of the lower warp. Weaving with Tsudakoma ZW408 single-jet water jet loom, correct setting and adjustment of process parameters is the guarantee of efficient operation and good quality of water jet loom.

4) Finishing process after dyeing, 1) Desizing process, due to the large sizing rate and the difficulty of desizing, the nylon desizing agent DC-EDC with good penetration, emulsifying and dispersing properties is selected. The specific process is as follows:

Process: Into the cloth, a desizing, a soaping, a hot water, a cold water washing;

The process recipe is:

Nylon desizing agent DC-EDC: 5g/L,

Penetrant M-7705: 1 ~ 2g / L.

Process conditions:

Desizing temperature: 98 ° C,

Soaping temperature: 90 ° C ~ 80 ° C,

Hot water washing temperature: 70 ° C ~ 50 ° C.

2) Dyeing process,

Acid dyes are used for dyeing. The higher the temperature, the faster the dyeing rate is, and the color dye is easy to produce. In order to obtain a uniform dyeing effect as much as possible, a dyeing process with a gradual temperature rise is adopted, and the dyeing temperature starts from 40 ° C, and then gradually increases to 40 ° C. 98 ° C, continued dyeing for 50 minutes;

The process recipe is:

The dyeing process curve is shown in Figure 1.

3) Fixing process

In order to make the fabric have higher color fastness, the process is as follows:

The process prescription is acid fixing agent N-SG: 2.0g/L,

Glacial acetic acid: 0.5g/L,

The solid color process curve is shown in Figure 2.

4) Shape

Process equipment: hot air tenter setting machine;

Process flow: into the cloth, an auxiliary tank, a weft, a drying, 3 to 4 boxes, a tenter, a cylinder, a cooling cloth, and a roll;

Process conditions: the setting temperature is 140 ° C, and the setting time is 60 s.

Due to the high sizing rate and the warp and weft density of the fabric, the dyeing and finishing of the grey fabric is prone to problems such as insufficient desizing, uneven dyeing, and poor color fastness. The dyeing and finishing process should adopt corresponding technical measures, such as selecting a suitable desizing agent; selecting acid dyes with improved liftability, compatibility, reproducibility and color fastness; adding suitable leveling agent to the dye solution to improve uniformity Dyeing; using overflow dyeing machine, strict control of process conditions, normal temperature and normal pressure dyeing, appropriate reduction of initial dyeing temperature and delay of temperature rise and fall to ensure dyeing quality.

The technical means disclosed in the solution of the present invention is not limited to the technical means disclosed by the above technical means, and includes a technical solution composed of any combination of the above technical features.

Claims (7)

1. A functional nylon 66 fabric and a preparation method thereof, characterized in that the method comprises the following steps: 1) raw material matching; 2) spinning process; 3) weaving process; 4) dyeing finishing process.
2. The functional nylon 66 fabric according to claim 1 and the preparation method thereof, wherein the raw material in the step 1) is matched as follows: 160 cm semi-dull nylon 66 DTY 22.2 dtex/16F (20D/16F) × half elimination Light quantum energy nylon 66 DTY55.5dtex / 23F (50D / 23F) 720 / 10 cm × 550 / 10 cm.
3. The functional nylon 66 fabric according to claim 2 and the preparation method thereof, wherein the spinning process is as follows: a twin screw extruder with a screw diameter of 25 mm is used to prepare a masterbatch of nylon 66 and quantum energy powder. After blending and granulation, the slices are dried in an oven at 105 ° C to remove the water. The quantum energy powder reaches 18% in the quantum energy nylon 66 masterbatch; the main screw speed of the twin-screw extruder is 800-1000 r/min. Feeding speed: 600～700r/min, pelletizer speed: 1000～1100r/min, temperature control in each zone of 1～8 zone: 235°C, 255°C, 270°C, 275°C, 280°C, 280°C, 275 ° C and 270 ° C; using a single screw spinning machine, screw diameter 25mm, length / diameter ratio of 30, screw speed of 7 ~ 9rpm, spinneret 80 holes, single hole diameter 0.25mm, nozzle hole length / diameter ratio 2, the wire cooling is cooled by 24-26 °C air conditioning, two steps of hot drawing nylon 66 fiber and quantum energy nylon 66 fiber, the winding rate is 300-450 m / min.
4. The functional nylon 66 fabric according to claim 3 and the preparation method thereof, wherein the weaving process is as follows: (1) warping, warping machine, total number of warping roots is 11,520, wherein the side yarn root Number 60×2; warping number 1440, vehicle speed 280m/min, winding tension 5kg, pressure roller pressure 1.5kg/cm ² , warping shaft hardness 80°; (2) parallel shaft, shaft machine, speed 50m/ Min, decompression tension 8kg, winding tension 100kg, taper 5%, shaft number 8, door width 182.8cm, and shaft hardness 85°, (3) pulp, shaft tension 5kg, winding tension 8kg, dip Slurry pressure 2.5kg/cm ² , grouting pressure 2.6kg/cm ² , slurry tank temperature (°C) 45°C; oven temperature (°C) 145°C*145°C; cylinder temperature (°C) 120°C*120°C*115 °C*115°C*110°C, vehicle speed 180m/min, slurry concentration 17 grid, sizing rate: 15%, pulp shaft hardness 83°, pulping formula: J-500 jet weaving nylon special pulp 15kg, flat plus 1kg, Antistatic agent lkg, friction reducing agent 0.5kg, supply barrel fixed product 0.9M3, supply barrel temperature: 98-100 °C, slurry barrel fixed 1000L, slurry concentration 12%, (4) wear comprehensive: 筘号 22#; The width of the frame is 182.8cm, and the number of pages of the heald frame is 2 pages and 6 columns. Tissue comprehensive wear method 1, 2, 3, 4, 5, 6, side-by-side tissue comprehensive method 1, 2, 3, 4, 5, 6, ground organization number 1, side organization number 1, land organization Entering number 3; edge tissue intrusion number 3, (5) weaving process technical parameters: water jet loom; speed 500 rpm; upper weft density 136 / inch; open type electronic dobby; opening time 330 degrees; Time 100 degrees; water spray 8mm, water spray pressure 55mm, rear beam height 60mm; stop frame height: 3 grids, side support gasket 4mm, on-board control cloth width 175.5-176cm; falling cloth number 3; temperature / relative humidity ( °C/%): 25±2°C/65±3%; (6) Finishing process, the length of the finished product is 120m; the width is 1m; the 3-5mm is added; the length of the package is 600m.
5. The functional nylon 66 fabric according to claim 2 and a preparation method thereof, wherein the finishing process after dyeing is as follows:

   1) Desizing process, the specific process is as follows:

   Process: Into the cloth, a desizing, a soaping, a hot water, a cold water washing;

   The process recipe is:

   Nylon desizing agent DC-EDC: 5g/L,

   Penetrant M-7705: 1 ~ 2g / L.

   Process conditions:

   Desizing temperature: 98 ° C,

   Soaping temperature: 90 ° C ~ 80 ° C,

   Hot water washing temperature: 70 ° C ~ 50 ° C.

   2) Dyeing process,

   Acid dyes are used for dyeing. The higher the temperature, the faster the dyeing rate is, and the color dye is easy to produce. In order to obtain a uniform dyeing effect as much as possible, a dyeing process with a gradual temperature rise is adopted, and the dyeing temperature starts from 40 ° C, and then gradually increases to 40 ° C. 98 ° C, continued dyeing for 50 minutes;

   The process recipe is:

   

   3) Fixing process

   In order to make the fabric have higher color fastness, the process is as follows:

   The process prescription is acid fixing agent N-SG: 2.0g/L,

   Glacial acetic acid: 0.5g/L,

   4) Shape

   Process equipment: hot air tenter setting machine;

   Process flow: into the cloth, an auxiliary tank, a weft, a drying, 3 to 4 boxes, a tenter, a cylinder, a cooling cloth, and a roll;

   Process conditions: the setting temperature is 140 ° C, and the setting time is 60 s.
6. The functional nylon 66 fabric according to claim 2, wherein the quantum energy nylon 66 masterbatch comprises 85-95% of quantum energy powder and 5%-8% of dispersant according to mass fraction. Coupling agent 1% - 3%.
7. The functional nylon 66 fabric according to claim 2 and the preparation method thereof, wherein the quantum energy nylon 66 masterbatch contains 91% of quantum energy powder, 7% of dispersant, and 2% of coupling agent according to mass fraction. .

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