Chemical fiber fabric with stacked pineapple inner micropore antistatic dustproof easy-to-deoil yarns

Abstract

The invention discloses a chemical fiber fabric with stacked pineapple inner micropore antistatic dustproof easy-to-deoil yarns, and relates to the field of clothing. Pore-forming crystal nucleuses are added in the spinning process, phase state differences of different materials are utilized, crystal nucleus phase state conversion is generated under certain physical conditions, micropores are formed, and therefore a stacked built-in cavity similar to bamboo fibers is formed; meanwhile, hydrophilic groups are added in the polymerization process to enlarge water molecule storage of the material, aggregation and accumulation of electrostatic charges can be continuously reduced by adsorbing a large number of water molecules, and therefore the lasting antistatic working mechanism is achieved; besides, the material has a large specific surface area and relatively strong oleophylic and hydrophilic characteristics, and provides a very strong grafting capillary effect for permeation of a detergent surfactant, so that the oil-stain separation is achieved, and the washing effect of easy decontamination and deoiling is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of clothing, in particular to a layered pineapple inner microporous antistatic dustproof easy-to-clean chemical fiber fabric. BACKGROUND

[0002] Chemical fibers are mainly divided into: nylon materials and polyester materials, but due to poor moisture absorption, easy to ball, easy to produce static electricity, easy to absorb stains, which brings many inconveniences to production and wearing experience.

[0003] Firstly, the antistatic technology has defects: at present, the main method to overcome static accumulation is to add hydrophilic antistatic additives (glycol / alcohol ether ester, etc.), and the main disadvantages are: not resistant to washing, and conflicting with water repellent additives, reducing water repellency.

[0004] Secondly, the easy-to-clean technology has defects: for oil-proof easy-to-clean, the current chemical fiber materials mainly use fluorine three-proof additives or moisture-absorbing easy-to-clean additives, which have good oil-proof performance, but the disadvantages are also non-outstanding: fluorine is easy to remain and not easy to decompose, which has a great risk of pathogenicity to the human body, and has a great destructive effect on water environment and ozone, and environmental protection is a concern. At the same time, through repeated friction, sweat stains or oil stains are more difficult to clean once absorbed by the garment, and the functional attenuation is obvious after multiple washes. SUMMARY

[0005] Therefore, in order to solve the above problems, the present application provides a layered pineapple inner microporous antistatic dustproof easy-to-clean chemical fiber fabric.

[0006] The present application is realized by constructing a layered pineapple inner microporous antistatic dustproof easy-to-clean chemical fiber fabric, which is made of polyester, polyamide material and built-in crystal nucleus master batch by melt spinning; the built-in crystal nucleus master batch contains carrier material and modified nano clay; the cross section of the fabric yarn has a layered pineapple-shaped microporous structure, and contains a hydrophilic group, so that the fabric has the properties of permanent antistatic, dustproof, dustproof and easy-to-clean.

[0007] A preparation method of a layered pineapple inner microporous antistatic dustproof easy-to-clean chemical fiber fabric, comprising the following steps: Step 1: embedding of hydrophilic groups: by copolymerizing and modifying polyamide and polyester materials, introducing hydrophilic groups, and preparing PA6 polyamide chips and PET polyester chips with high moisture absorption by graft polymerization; Step 2: preparation of microporous built-in crystal nucleus: preferably, a built-in crystal nucleus with good chemical fiber compatibility and easy dispersion is used for master batch production; Masterbatch production: Prefer the beta crystal nucleating agent, abandon calcium carbonate and other materials, prevent the decomposition of a certain amount of carbon dioxide under the conditions of acid and alkali in the dyeing and finishing process, volatilization and induce the unevenness of the fiber surface, cause the uneven risk of the evenness of the yarn; Prefer nanoclay as a nucleating agent, which can maximize the uniformity of the material and the multi-channel properties; At the same time, in order to prevent the risk of unevenness of the crystal nucleus due to high temperature during the masterbatch melting and spinning process, a certain amount of high temperature resistant agent needs to be added during the blending stage to control its conversion rate and uniformity; PET polyester carrier masterbatch is made of the following raw materials by weight percentage: PET carrier: 50-60%, the PET carrier here has a viscosity IV of 0.6-0.7; modified nanoclay OMMT: 30-40%; chelating dispersant: 7-8%; slip agent: 2-3%; made by the production process of modified clay nanometer screening-drying pretreatment-melted double screw extrusion-pelletizing; the melt extrusion temperature is set to: feeding 240-250℃, melting 265-270℃, mixing 270-275℃, extruder head 265-270℃; screw speed is set to 200-300rpm; PA6 nylon carrier masterbatch is made of the following raw materials by weight percentage: PA6 carrier: 50-60%; modified nanoclay OMMT: 30-40%; maleic anhydride graft: 6-8%; slip agent: 2-3%; antioxidant: 0.5%; made by the production process of modified clay nanometer screening-drying pretreatment-melted double screw extrusion-pelletizing; the melt extrusion temperature is set to: feeding 200℃, melting 220-240℃, extruder head 238℃; Step three, the masterbatch prepared in step two is melt blended with polyester or polyamide material for melt spinning, and the key parameters are controlled to control the distribution of crystal and amorphous regions, and to uniformly form a laminated structure of pineapple micro-pores during drawing; PET pineapple micro-porous yarn production: prepare the spinning solution, put the pre-made high-hygroscopic PET chip, high-temperature resistant agent and PET built-in crystal nucleus into the pump body, and control the screw heating and melting to make mixed slurry; according to the required micro-porosity of 50%-75%, input the parameter ratio to the metering pump console, control the flow rate of the mixed slurry injected into another pump body, and fully stir the two kinds of slurry to make the required proportion of spinning solution; the prepared spinning solution is heated by screw, and the melt is preserved and transported, filtered and extruded by spinning assembly, and then cooled by circular blowing; according to the required yarn count, the yarn is drawn and spun according to the required fineness, and then the yarn is drawn-dried-oiled-stretched-shaped-network-interlaced-wound to form the required pineapple micro-porous polyester yarn; Wherein: the melt screw is divided into six sub-zones, and the temperature of each zone is respectively: 275 DEG C, 280 DEG C, 285 DEG C, 292 DEG C, 295 DEG C and 295 DEG C;The melt is accurately metered after passing through the metering pump into the spinning assembly, is sprayed through the spinneret to form the tow, the spinneret spinneret hole is set according to actual requirements to make;The tow sucked by the monomer passes through side blowing or ring blowing for cooling;The cooling temperature is 23 DEG C, the humidity is 80%, the wind speed is 0.51 m / s, the fiber cooled through the side blowing or ring blowing is accurately metered through the oil nozzle to oil the bundle, and the oil agent concentration used is 8%;The tow is wound into shape after pre-networking, hot roller stretching and setting after oiling, and the speed is 5200 m / min; PA6 pineapple micro-porous yarn making: preparing a spinning solution, feeding the prepared high-hygroscopic PA6 chip and PA6 built-in crystal nucleus into the pump body, and controlling the screw heating to melt and make mixed pulp;According to the required microporosity of 50%-75%, input parameters are input to the metering pump console, the flow rate of the mixed pulp into another pump body is controlled, and the two kinds of pulp are fully stirred, mixed uniformly, and the required proportion of the spinning solution is prepared;The prepared spinning solution is heated by a screw, melt temperature is maintained, and is filtered and extruded through a spinning assembly, and then is cooled by ring blowing;According to the required yarn count, the yarn is spun by drawing, drying, oiling, stretching, setting, network interlacing and winding into shape, and the required pineapple micro-porous polyester yarn is prepared; Wherein: the melt and the box temperature are respectively: 256 DEG C, 258 DEG C, 260 DEG C, 262 DEG C, 263 DEG C, 263 DEG C;The melt is accurately metered after passing through the metering pump into the spinning assembly, is sprayed through the spinneret to form the tow, the spinneret spinneret hole is set according to actual requirements to make;The tow sucked by the monomer passes through side blowing or ring blowing for cooling;The cooling temperature is 23 DEG C, the humidity is 85%, the wind speed is 0.53 m / s, the fiber cooled through the side blowing or ring blowing is accurately metered through the oil nozzle to oil the bundle, and the oil agent concentration used is 8%;The tow is wound into shape after pre-networking, hot roller stretching and setting after oiling, and the speed is 4800 m / min.

[0008] The present application has the following advantages: the present application provides a layered pineapple inner microporous antistatic dustproof easy-to-oil yarn, which has the following improvements compared with the same type of equipment: The application discloses a laminated pineapple inner microporous antistatic dustproof easy-to-clean oil-removing chemical fiber fabric, which is characterized by the following steps: adding pore-forming crystal nucleus in the spinning process, utilizing the phase state difference of different materials, and causing the phase state conversion of the crystal nucleus under certain physical conditions to form micropores, so that the laminated type built-in cavity similar to bamboo fiber is formed, and at the same time, the water molecules of the hydrophilic group are stored in the polymerization process, and a large number of water molecules are adsorbed to continuously reduce the accumulation of static electricity, so that the working mechanism of long-lasting antistatic is achieved; in addition, the material has a large specific surface area and strong lipophilicity and hydrophilicity, and provides a strong capillary effect for the grafting of the surface active agent of the detergent, so that the oil stain separation is achieved, and the easy-to-clean washing effect is realized; in the dyeing and finishing process, the light oil removal process is matched to remove the dispersed organic solvent in the micropores, so as to release the internal microporous space of the fiber, so that the woven fabric has excellent antistatic, moisture absorption, dust prevention, easy-to-clean and other properties, and the cotton effect of the material, the wearing experience of the clothes and the easy-to-care performance are improved. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a jacquard tissue effect diagram example of the application. DETAILED DESCRIPTION

[0010] The following will be described in combination with the accompanying Figure 1 The principles and characteristics of the application are described, and the examples are only used to explain the application, and are not used to limit the scope of the application. In the following paragraphs, the application is described in more specific manner with reference to the accompanying drawings. It should be noted that the drawings are very simplified and use non-precise proportions, and are only used to facilitate and clarify the purpose of assisting the description of the embodiments of the application.

[0011] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the application and simplify the description, and cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" are only used for description purposes, and cannot be understood as indicating or implying relative importance.

[0012] In the description of the present application, it should be noted that unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0013] Please refer to Figure 1 The present application is a kind of layered pineapple inner microporous antistatic dustproof easy to remove oil yarn chemical fiber fabric, the fabric is made of polyester, polyamide material and built-in crystal core master batch by melt spinning;The built-in crystal core master batch contains carrier material and modified nano clay;The cross section of the fabric yarn has a layered pineapple-like microporous structure, and contains hydrophilic groups, so that the fabric has the properties of permanent antistatic, dustproof, dustproof and easy to remove dirt and oil.

[0014] A preparation method of a layered pineapple inner microporous antistatic dustproof easy to remove oil yarn chemical fiber fabric, comprising the following steps: Step one, embedding of hydrophilic groups: by copolymerization modification of polyamide and polyester material, introducing hydrophilic groups, grafting polymerization to prepare PA6 polyamide chip and PET polyester chip with high moisture absorption; Step two, preparation of microporous built-in crystal core: preferably, the built-in crystal core with good chemical fiber compatibility and easy dispersion is used for master batch production; Master batch production: preferably, β crystal nucleating agent is used, and calcium carbonate and other materials are abandoned to prevent the risk of unevenness of the fabric caused by the generation of a certain amount of carbon dioxide, evaporation and induction of the unevenness of the fiber surface, and the risk of unevenness of the fabric caused by the decomposition of the crystal core under the condition of acid and alkali in the dyeing and finishing process;Preferably, nano clay is used as nucleating agent, which can maximize the uniformity of the material and the multi-channel properties;In order to prevent the risk of unevenness of the crystal core caused by high temperature during the master batch melting and spinning process, a certain amount of high temperature resistant agent needs to be added during the blending stage to control the conversion rate and uniformity; The PET polyester carrier master batch is made of the following raw materials by weight percentage: PET carrier: 50-60%, the PET carrier here has a viscosity IV of 0.6-0.7;Modified nano clay OMMT: 30-40%;Chelating dispersant: 7-8%;Slip agent: 2-3%;Through the production process of modified clay nano screening-drying pretreatment-melt double screw extrusion-pelletizing;The melt extrusion temperature is set as: feeding 240-250℃, melting 265-270℃, mixing 270-275℃, extruder head 265-270℃;The screw rotation speed is set to 200-300rpm; The PA6 nylon carrier master batch is made of the following raw materials in weight percentage: PA6 carrier: 50-60%; modified nanoclay OMMT: 30-40%; maleic anhydride graft: 6-8%; slip agent: 2-3%; antioxidant: 0.5%; and the manufacturing process is made by modified clay nanosieve-drying pretreatment-melt twin-screw extrusion-pelletizing; the melt extrusion temperature is set as follows: feeding 200℃, melting 220-240℃, extruder head 238℃; Step three, the master batch prepared in step two is melt blended with polyester or polyamide material for melt spinning, and key parameters are controlled to control the distribution of crystal and amorphous regions, and to uniformly form a laminated structure of pineapple micro-pores during drawing; PET pineapple micro-porous yarn making: prepare the spinning solution, put the pre-prepared high-hygroscopic PET chip, high-temperature resistant agent and PET built-in crystal nucleus into the pump body, and control the screw heating and melting to make mixed slurry; according to the required micro-porosity of 50%-75%, input the parameters to the metering pump console, control the flow rate of the mixed slurry into another pump body, and fully stir the two kinds of slurry, mix uniformly, and make the required proportion of spinning solution; the prepared spinning solution is heated by screw, melt is preserved and transported, filtered and extruded by spinning assembly, and then cooled by ring blowing; according to the required yarn count, the yarn is drawn and spun into sliver according to the required fineness, and then through drawing-drying-oiling-stretching-setting-network interlacing-winding forming, the required pineapple micro-porous polyester yarn is made; Wherein: the melt screw is divided into six zones, and the temperature of each zone is respectively: 275℃, 280℃, 285℃, 292℃, 295℃ and 295℃; the melt is accurately metered by the metering pump and then enters the spinning assembly, forms a bundle through the spinneret, and the spinneret orifice is set according to the actual requirements; the bundle drawn by the monomer is cooled by side blowing or ring blowing; the cooling temperature is 23℃, the humidity is 80%, and the wind speed is 0.51m / s; the fiber cooled by side blowing or ring blowing is accurately metered and oiled by oil nozzle, and the oil concentration used is 8%; after oiling, the bundle is wound into shape after pre-networking, hot roller stretching and setting, and the speed is 5200m / min; PA6 pineapple micro-porous yarn production: prepare the spinning solution, put the pre-prepared high-hygroscopic PA6 chip and PA6 built-in crystal nucleus into the pump body, melt by controlling the screw heating to make mixed slurry; according to the required micro-porosity of 50%-75%, input the parameter proportion to the metering pump console, control the flow rate of the mixed slurry injected into another pump body to fully stir the two kinds of slurry, mix evenly, and make the required proportion of spinning solution; the prepared spinning solution is conveyed by heating the screw, melt preservation, filtered and extruded through the spinning assembly, and then cooled by ring blowing; according to the required yarn count, the yarn is spun by drawing and spinning according to the required fineness, and then formed by drawing-drying-oiling-stretching-setting-network interlacing-winding; the required pineapple micro-porous polyester yarn is made; Wherein: the melt and box temperatures are respectively: 256℃, 258℃, 260℃, 262℃, 263℃, 263℃; the melt is accurately metered by the metering pump, enters the spinning assembly, is sprayed out of the spinneret to form a bundle, and the spinneret orifice is made according to the actual requirements; the bundle drawn by the monomer is cooled by side blowing or ring blowing; the cooling temperature is 23℃, the humidity is 85%, and the wind speed is 0.53m / s; the fiber cooled by side blowing or ring blowing is accurately metered and oiled by the oil nozzle, and the oil concentration used is 8%; after oiling, the bundle is wound after pre-networking, hot roller stretching and setting, and the speed is 4800m / min.

[0015] The embodiments of the application will be described below according to the overall structure of the application.

[0016] Example one: preparation of anti-static easy-to-clean light-weight down jacket fabric: The warp yarn uses 20D / 18F pineapple inner micro-porous nylon filament, and the weft yarn uses 20D / 18F pineapple inner micro-porous nylon filament; the cold pile desizing-long car deoiling-roll dyeing secondary deoiling-roll dyeing dyeing-fluorine-free waterproof-anti-down polishing dyeing method is used; the weft yarn arrangement ratio is formed: 1 up 1 down, plain design, warp density: 92 threads / cm; weft density: 72 threads / cm; finished product weight: 41g / m2.

[0017] Example two: preparation of anti-static easy-to-clean micro-crease down jacket fabric: The warp yarn uses 20D / 18F pineapple inner micro-porous nylon filament, and the weft yarn uses 20D / 24F pineapple inner micro-porous nylon low-elasticity filament; the cold pile desizing-long car deoiling-overflow cylinder washing deoiling-overflow cylinder dyeing-fluorine-free waterproof-anti-down polishing dyeing method is used to form the weft yarn arrangement ratio: 1 up 1 down, plain design; warp density: 92 threads / cm; weft density: 72 threads / cm; finished product weight: 42g / m2.

[0018] Example three: preparation of anti-static easy-to-clean down jacket fabric: The warp yarns adopt 20D / 18F pineapple inner micro-porous nylon filaments, and the weft yarns adopt 30D / 24F pineapple inner micro-porous nylon filaments; a dyeing and finishing mode of cold pile desizing-long car deoiling-dyeing-twice deoiling-dyeing-no fluorine waterproofing-antifuzz polishing is adopted to form the weft yarn arrangement ratio: 1 up 1 down, plain design, warp density: 92 threads / cm; weft density: 72 threads / cm; finished product gram weight: 39 g / m2.

[0019] Example four: preparation of anti-static easy-to-clean light-weight polyester fabric: The warp yarns adopt 50D / 72F polyester dull low-elasticity filaments, and the weft yarns adopt 75D / 72F pineapple inner micro-porous polyester low-elasticity filaments; a dyeing and finishing mode of cold pile desizing-long car deoiling-overflow cylinder washing deoiling-overflow cylinder dyeing-no fluorine waterproofing-antifuzz polishing is adopted to form the weft yarn arrangement ratio: 1 up 1 down, plain design, warp density: 75 threads / cm; weft density: 43 threads / cm; finished product gram weight: 72 g / m2.

[0020] Example five: preparation of anti-static easy-to-clean small jacquard weave The warp yarns adopt 50D / 72F polyester dull low-elasticity light-absorbing heat-generating yarns, the weft yarns one adopt 50D / 72F pineapple inner micro-porous polyester low-elasticity filaments, and the weft yarns two adopt 50D / 72F pineapple inner micro-porous polyester low-elasticity filament strands; the weft yarn arrangement ratio is: 1:1 jacquard diagonal grid design; please refer to the accompanying drawings in the specification Figure 1 , wherein represents the intersection point of the weft yarn one and the warp yarn, represents the intersection point of the weft yarn two and the warp yarn; a dyeing and finishing mode of cold pile desizing-long car deoiling-overflow cylinder washing deoiling-overflow cylinder dyeing-no fluorine waterproofing-antifuzz polishing is adopted to form the warp density: 75 threads / cm; weft density: 43 threads / cm; finished product gram weight: 92 g / m2.

[0021] The present application is designed according to light-weight windbreaker, cold-weather clothing, outdoor coat, and leisure functional trousers, and adopts plain weave, changed plain weave, twill, small jacquard weave and the like to prepare polyester-based anti-static micro-porous dust-proof easy-to-clean fabric from 30D / 32F low-elasticity filaments, 50D / 72F low-elasticity filaments, 75D / 72F low-elasticity filaments, 100D / 144F low-elasticity filaments, 150D / 144F low-elasticity filaments, 50D / 72F coated 40D spandex, and 75D / 72F coated 40D spandex; the spring and summer anti-static outerwear has the effects of anti-static dust-proof and non-stick body; the autumn and winter anti-static dust-proof cold-weather clothing has the effect of anti-static dust-proof easy-to-clean; and the anti-static leisure sports trousers have the effect of anti-static dust-proof non-stick body.

[0022] The present application is designed according to light windbreaker, cold-weather clothing, outdoor coat, leisure functional trousers, and adopts plain weave, changed plain weave, twill, small jacquard weave and the like to prepare the material 20D / 18F filament, 20D / 18F low-elasticity filament, 20D / 24F low-elasticity filament, 40D / 34F low-elasticity filament, 70D / 48F low-elasticity filament, 70D / 68F low-elasticity filament, and 20D / 18F coated 20D spandex, 40D / 34F coated 20D spandex and 70D / 48F coated 40D spandex to prepare the polyamide-based anti-static microporous dust-proof and easy-to-clean fabric; the spring and summer anti-static dust-proof coat has the anti-static dust-proof and non-sticky body effect; the autumn and winter anti-static dust-proof cold-weather clothing has the anti-static dust-proof and easy-to-clean effect; the anti-static leisure sports trousers have the anti-static dust-proof and non-sticky body effect.

[0023] The present application provides a kind of layering pineapple inner microporous anti-static dust-proof and easy-to-clean yarn of chemical fiber fabric by improvement, by adding pore-forming crystal nucleus in spinning process, utilize the phase difference of different materials, crystal nucleus phase transition occurs under certain physical conditions, form microporous, so that it forms similar bamboo fiber's layering type built-in cavity, simultaneously, the water molecules storage of hydrophilic group is added in polymerization process, by adsorbing a large number of water molecules, it can continuously reduce the accumulation of static charge, so as to achieve the working mechanism of long-lasting anti-static;In addition, the material has large specific surface area and strong lipophilic and hydrophilic properties, which provides strong capillary effect for the penetration of detergent surfactant, so as to achieve oil stain separation and easy-to-clean washing effect;In the dyeing and finishing process, cooperate with light weight oil removal process, remove the dispersed organic solvent in microporous, to release the internal microporous space of fiber, so that the woven fabric has excellent anti-static, moisture absorption, dust prevention, easy-to-clean and other properties, which improves the cotton effect of the material, the wearing experience of the garment and the easy-to-care performance.

[0024] The basic principles and main features of the present application are shown and described above, and the advantages of the present application are shown and described above, and the standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional bolt rivet, welding and other conventional means in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0025] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chemical fiber fabric with layered pineapple-shaped microporous antistatic, dust-proof, and easy-to-remove oil yarn, characterized in that: The fabric is made of polyester, polyamide materials and built-in crystal nucleus masterbatch through melt spinning; The built-in crystal nucleus masterbatch contains a carrier material and modified nano-clay; the cross-section of the fabric yarn has a layered pineapple-shaped microporous structure and contains hydrophilic groups, giving the fabric permanent antistatic, dustproof and easy-to-clean and oil-removing properties.

2. A method for preparing a layered pineapple-inspired microporous antistatic, dust-proof, and easily oil-removable yarn chemical fiber fabric, used to implement the layered pineapple-inspired microporous antistatic, dust-proof, and easily oil-removable yarn chemical fiber fabric as described in claim 1, characterized in that: Includes the following steps: Step 1, embedding of hydrophilic groups: By copolymerizing polyamide and polyester materials to introduce hydrophilic groups, PA6 polyamide chips and PET polyester chips with high hygroscopicity are prepared by graft polymerization. Step 2: Preparation of microporous embedded crystal nuclei: Select embedded crystal nuclei with good compatibility with chemical fibers and easy dispersion for masterbatch production; Masterbatch production: β-crystal nucleating agents are preferred, while materials like calcium carbonate are avoided to prevent the decomposition and generation of carbon dioxide under acidic or alkaline conditions during dyeing and finishing, which could volatilize and induce unevenness on the fiber surface, leading to an unlimited risk of uneven yarn distribution. Nano-clay is preferred as a nucleating agent to maximize the uniformity and multi-channel properties of the material. At the same time, to prevent the risk of excessively rapid crystal nucleus breakage and uneven distribution during the masterbatch melting and spinning process due to excessively high temperatures, a certain amount of high-temperature resistant agent needs to be added during the blending stage to control its conversion rate and uniformity. The PET polyester carrier masterbatch is made from the following raw materials by weight percentage: PET carrier: 50-60%, where the PET carrier has a viscosity IV of 0.6-0.7; modified nano-clay OMMT: 30-40%; chelating dispersant: 7-8%; slip agent: 2-3%; it is manufactured through a process of modified clay nano-screening, drying pretreatment, melt twin-screw extrusion, and pelletizing; the melt extrusion temperature is set as follows: feed 240-250℃, melt 265-270℃, mixing 270-275℃, extruder head 265-270℃; the screw speed is set to 200-300 rpm; PA6 nylon carrier masterbatch is made from the following raw materials by weight percentage: PA6 carrier: 50-60%; modified nano-clay OMMT: 30-40%; maleic anhydride graft: 6-8%; slip agent: 2-3%; Antioxidant: 0.5%; It is manufactured using a process of modified clay nano-screening - drying pretreatment - melt twin-screw extrusion - pelletizing; the melt extrusion temperature is set as follows: feed 200℃, melt 220-240℃, extruder head 238℃; Step 3: The masterbatch prepared in Step 2 is melt-blended with polyester or polyamide material and then melt-drawn. Key parameters are controlled to control the distribution of crystalline and amorphous regions, so that a pineapple micropore structure with a layered structure is uniformly formed during drawing. Production of PET Pineapple Microporous Yarn: The spinning solution is prepared by feeding pre-made highly absorbent PET chips, a high-temperature resistant agent, and PET embedded crystal nuclei into a pump body. The mixture is heated and melted by controlling the screw to form a mixed slurry. Based on the required microporosity of 50%-75%, the parameter ratio is input to the metering pump control console to control the flow rate of this mixed slurry into another pump body, ensuring thorough mixing and homogeneous formation of the desired spinning solution. The prepared spinning solution is then conveyed through a heated screw for melt insulation, filtered, extruded, and drawn into yarn via the spinning assembly, followed by ring blowing cooling. The yarn is then drawn and spun into filaments according to the required yarn count and fineness. Through drawing, drying, oiling, stretching and setting, network interlacing, and winding, the desired pineapple microporous polyester yarn is produced. The process involves six zones in the melting screw, with temperatures of 275℃, 280℃, 285℃, 292℃, 295℃, and 295℃ respectively. The melt, precisely metered by a metering pump, enters the spinning assembly and is extruded through a spinneret to form filament bundles. The spinneret's nozzles are designed and manufactured according to actual requirements. The filament bundles, drawn by the monomers, are cooled by side-blowing or ring-blowing air at a temperature of 23℃, humidity of 80%, and wind speed of 0.51 m / s. The fibers cooled by the side-blowing or ring-blowing air are then precisely metered and oiled through oil nozzles, using an 8% oil concentration. After oiling, the filament bundles are stretched and shaped by a pre-networker and hot rollers, and then wound into shape at a speed of 5200 m / min. PA6 Pineapple Microporous Yarn Production: The spinning solution is prepared by feeding pre-made highly absorbent PA6 chips and PA6 embedded crystal nuclei into a pump body. The mixture is heated and melted by controlling the screw to form a mixed slurry. Based on the required microporosity of 50%-75%, the parameter ratio is input to the metering pump control console to control the flow rate of this mixed slurry into another pump body, ensuring thorough mixing of the two slurries to achieve the desired spinning solution ratio. The prepared spinning solution is then conveyed through a heated screw for melt insulation, filtered, extruded, and drawn into yarn via the spinning assembly, followed by ring blowing cooling. The yarn is then drawn and spun into filaments according to the required yarn count and fineness. Through drawing, drying, oiling, stretching and setting, network interlacing, and winding, the desired pineapple microporous polyester yarn is produced. The melting and chamber temperatures are 256℃, 258℃, 260℃, 262℃, 263℃, and 263℃, respectively. The melt is precisely metered by a metering pump and then enters the spinning assembly, where it is ejected through a spinneret to form filament bundles. The spinneret nozzles are designed and manufactured according to actual requirements. The filament bundles drawn by the monomers are cooled by side-blowing or ring-blowing air. The cooling temperature is 23℃, the humidity is 85%, and the wind speed is 0.53m / s. The fibers cooled by the side-blowing or ring-blowing air are precisely metered and oiled through oil nozzles, with an oil concentration of 8%. After oiling, the filament bundles are stretched and shaped by a pre-networker and hot rollers, and then wound into shape at a speed of 4800m / min.

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