CN104328531A - Manufacturing method of hydrophilic polyester short fibers for directly spinning spun-laced non-woven fabric - Google Patents
Manufacturing method of hydrophilic polyester short fibers for directly spinning spun-laced non-woven fabric Download PDFInfo
- Publication number
- CN104328531A CN104328531A CN201410631035.5A CN201410631035A CN104328531A CN 104328531 A CN104328531 A CN 104328531A CN 201410631035 A CN201410631035 A CN 201410631035A CN 104328531 A CN104328531 A CN 104328531A
- Authority
- CN
- China
- Prior art keywords
- spinning
- temperature
- finishing agent
- fiber surface
- melt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention provides a manufacturing method of hydrophilic polyester short fibers for directly spinning a spun-laced non-woven fabric. The manufacturing method comprises the following steps: carrying out esterification on polyester slurry, carrying out pre-condensation polymerization, carrying out final condensation polymerization, spinning and carrying out after-finishing. In a pre-condensation polymerization process, comonomer polyethylene glycol PEG is added, the molecular weight of the added PEG is 1500-2000, and the adding amount is 0.5wt%-1.0wt% of a polyester melt. The temperature of the melt obtained by the final condensation polymerization is controlled to be lower than 290 DEG C, so that the quantity of generated annular tripolymers is reduced and the spun-laced processing efficiency of the fibers is improved. A hydrophilic modifier is added in an online polyester synthetic process and the polyester melt is directly used for spinning; the production cost is lower compared with the production cost of chip spinning, the quality uniformity of the short fibers is improved by 50% and the hydrophilic effect is obvious; eight paths of surface treatment are carried out, so that the distribution of a fiber surface finishing agent is uniform and the attaching firmness is improved; the fiber surface hydrophilic effect is improved in a spun-laced processing process; and the polyester PET short fibers can be used for completely replacing mucilage glue short fibers to be used as production raw materials of the non-woven fabric, so that the whole cost of the non-woven fabric is reduced.
Description
Technical field
The present invention relates to a kind of direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method, belong to synthetic fiber technical field.
Background technology
Polyester fiber, especially PET staple fibre are applied to non-weaving cloth (Non-Woven) field in the eighties in last century, are mainly used in that acupuncture is firm becomes non-weaving cloth with Chemical Felter, hot melting cohesion.Water jet process is the major technological breakthrough of nonwoven industry, holding is vertically sprayed at polyester monofilament net or the online fiber web of metal curtain by many superfine high pressure liquid drugs injections, make fiber be subject to the effect of High-Pressure Water (also known as liquid drugs injection) and mutually tangle, reinforce, forming hydro-entangled non-woven fabric.
The non-weaving cloth that shaping or the chemical or hot melt of opposing metallic acupuncture is reinforced, combination property is superior, soft, good permeability, not containing chemical binder, in medical and hygiene article, synthetic leather base cloth, household supplies (bunting, clean-cloth) and other industrial uses (battery diaphragm, clothing lining, roof Material etc.), there is appreciable application prospect.
Since late 1970s comes out, the ratio of hydro-entangled non-woven fabric shared by non-weaving cloth is more and more higher.Due to the particularity of production technology, consider the decontamination cycle requirement of current especially, the fibrous raw material used must possess hydrophilic, along with quality improvement and the new product development of hydro-entangled non-woven fabric, conventional polyester PET can not adapt to high-hydrophilic non-weaving cloth processing request through the fiber of surface hydrophilic process.
From the requirement of environmental protection and sustainable development, polyester staple fiber (PET Staple) surface conditioning agent should not comprise to comprise environment and the harmful chemical substance of human body appoints base phenol etc.
The hydrophily of traditional hydro-entangled non-woven fabric product usually relies on and embodies with viscose fiber blending, viscose good hygroscopicity, but relative polyester fiber, wet strong very low, common textile terylene brute force is high, and price is low but hygroscopicity is poor.
The professional requirement of hydro-entangled non-woven fabric is used for for polyester PET staple fibre, patent CN103397519A discloses high clean spunlace non-woven cloth special polyester staple fiber production method, can meet the condition that a part of hydro-entangled non-woven fabric polyester staple fiber replaces portion adhesive staple fibre.
Along with the expansion of hydro-entangled non-woven fabric application market, select polyester PET staple fibre to become non-weaving cloth and reduce raw material, production cost, improve one of emphasis of non-weaving cloth serviceability, especially hydro-entangled non-woven fabric is used for " with namely abandoning " hygienic material, proposes new demand more specifically to the performance of polyester PET staple fibre.
One is wish that polyester PET staple fibre is by chemical modification, makes to embed more aliphatic hydrophilic radical in the large molecule of PET, to improve the hydrophilicity of fiber; Two is that the least possible fiber surface spall (be mainly the oligomer that pyroreaction produces, especially cyclic trimer, water insoluble, be clear crystals thing) is to improve the efficiency of water thorn process and to reduce the foreign matter of hydro-entangled non-woven fabric; Three is meeting under health, safety and environmental requirement prerequisite, and the coating uniformity of polyester fibre surface hydrophilic finishing agent and attachment fastness improve further, to reduce viscose mixing match, reduces final products cost.
Present stage, the chemical hydrophilic modifying technology of polyester PET was ripe, but mainly adopted modified master batch blending or batch (-type) section melt spinning, and relative production cost is high, and fiber quality is uneven, the direct spining technology of Large Copacity is also very ripe, the staple fibre daily output can reach 300 tons, production efficiency is high, production cost is low, but main product objective is RING SPINNING or open-end spinning fiber, relatively low to the requirement of fiber surface spall, therefore, cyclic trimer content in actual PET melt is higher, reach more than 0.8wt%, through spinning and stretching HEAT SETTING, these cyclic trimers will migrate to fiber surface, peel off under external force, usually the content of these spalls reaches more than 0.3wt%, because the fusing point of these spalls is up to 310 DEG C, be not dissolved in water, therefore, likely blocking water thorn spray-hole causes nonwoven fabric working (machining) efficiency to reduce, non-weaving cloth quality reduces, conventional polyester PET staple fibre surface treatment process is relatively simple, fiber surface containing the uniformity of finishing agent and attachment fastness relatively weak, cause hydro-entangled non-woven fabric working (machining) efficiency to reduce, the physical and mechanical properties uniformity reduction of non-weaving cloth.And, be typically about 1.5 ~ 1.8 times of textile yarn polyester PET staple fibre for the viscose staple fibre selling price of hydro-entangled non-woven fabric, cause the with high costs of hydro-entangled non-woven fabric.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method that a kind of fiber surface hydrophilic effect is obvious, cost is low is provided.
The technical solution used in the present invention is: a kind of direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method, comprise that the esterification of polyester pulp, precondensation, final minification are poly-, spinning and Final finishing, it is characterized in that: in precondensation process, add PEG (comonomer polyethylene glycol), the PEG molecular weight added is 1500 ~ 2000, addition is 0.5 ~ 1.0%wt of polyester fondant, make PEG participate in precondensation and whole polycondensation reaction, in polyester PET strand, form the hydrophilic radical of ether-containing key.
As the preferred technical scheme of the present invention, temperature≤290 DEG C of polyester pulp in whole polycondensation reaction, to reduce the formation of cyclic trimer.
As the preferred technical scheme of the present invention, to the melt Conveying pipeline of spinning manifold, the heat exchanger containing static mixing function is set up after melt is by terminal polymerization kettle discharging pump, melt walks tube side, heating agent walks shell side, temperature before making polyester fondant enter spinning manifold is reduced to≤and 285 DEG C, the temperature preventing melt from causing due to melt and pipe friction and booster pump melt shear at course of conveying increases, prevent tripolymer content from increasing, spinning temperature controls at 285 ~ 289 DEG C, the temperature of quenching wind and the difference of melt temperature are between 255 ~ 265 DEG C, and adopt quenching mode from inside to outside.
As the preferred technical scheme of the present invention, in spinning in staple fibre packaging process, 8 places are had to use fiber surface finishing agent to carry out antistatic to fiber surface respectively, hydrophily and fluent movement, the annular lip type contact laying respectively at (a) spinning quench process arranges, b the linear pattern lip type contact before () winding arranges, c after () tow boundling, impregnated arranges, d () water-bath stretching spray+impregnated arranges, e the fountain after () high-temperature tension HEAT SETTING arranges, f () is curling before, spray+friction-type arranges, g () curling rear fountain arranges, h () cuts off before, rear atomization arranges.
As the preferred technical scheme of the present invention, in spinning process, after melt enters spinning manifold, entered filament spinning component carried out refiltering and further homogenising by measuring pump accurate measurement, the spinnerets of every assembly is containing 3840 holes, melt is extruding spinning under 10MPa pressure, spinning temperature is 288 DEG C, melt stream carries out cooling forming by quenching wind facility from inside to outside, cooling air temperature is 28 DEG C ± 1 DEG C, humidity is 70%RH, spinning silk winding speed is 1250m/min, in spinning quench process, annular lip type contact oiling device is adopted to oil arrangement to dispersity filament Shu Jinhang, the concentration of fiber surface finishing agent is 0.2%, every spinning station tow integrated a branch of after, before 32 spinning station boundlings, adopt the contact of linear pattern lip type to oil to arrange each tow spinning position, the concentration of fiber surface finishing agent is 0.2%, through to oil for twice, the strand arranged delivers to fiber barrel by feeding-wheel, carries out Final finishing by operation below to tow.
As the preferred technical scheme of the present invention, in Final finishing step, the spinning precursor composition obtained by 24 barrels of spinning process stretches and criticizes, through creel, being tiled by 24 rhizoid bars is respectively 3 silk sheets, introduces dipping tank, fiber surface finishing agent concentration is 0.4%, and dipping temperature is 40 DEG C ± 1 DEG C; Tow impregnated is stretched to silk sheet by the first and second stretching-machines after arranging, between two stretchers, again carry out water-bath stretching spray+impregnated finish to silk sheet arrange, fiber surface finishing agent concentration is 0.4%, temperature is 65 DEG C ± 1 DEG C, form second time between 3rd stretching-machine and the second stretching-machine to stretch to silk sheet, the heating of silk sheet is adopted to the uperize of 130 DEG C ± 2 DEG C, total draw ratio is 3.86 times; Silk sheet after stretching adopts the heat shaping roller of steam jacket heating to carry out high-temperature tension sizing, silk sheet setting temperature is 185 DEG C ± 1 DEG C, subsequently, carries out the arrangement of fountain finish on the two sides of silk sheet, temperature is 80 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; 3 silk sheets are built up 1, through steam preheating to 130 DEG C ± 1 DEG C, carry out curling to silk sheet, before crimping by finishing agent spray on crimping wheel to silk sheet spray+friction-type arranges, temperature is 80 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; Silk sheet after curling carries out fountain arrangement again, and temperature is 80 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; Silk sheet is the chain-plate type conveying of 120 DEG C ± 2 DEG C through excess temperature, after heated air drying, enters cut-out operation; Silk sheet before cutting, enter atomization finish case, atomizing oiling arrangement is carried out to silk sheet, finish temperature is 30 DEG C ± 1 DEG C, fiber surface finishing agent concentration is 1.2%, staple fibre after cut-out enters on the passage before baling press and carries out atomizing oiling process to it, and temperature is 30 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; Fiber Bao Chongwei 300kg ± 1kg, adopts outer bag to be PP braiding, liner PE waterproof coating.
As the preferred technical scheme of the present invention, the composition of described fiber surface finishing agent comprises:
(1) the synthetic long-chain fat race ester of aliphatic acid and alcohol, accounts for 30 ~ 40%wt of finishing agent total amount;
(2) chain alkyl polyethenoxy ether sodium sulfate, accounts for 15 ~ 35%wt of finishing agent total amount;
(3) fatty alcohol-polyoxyethylene ether, accounts for 30 ~ 45%wt of finishing agent total amount.
In the present invention, the concentration of all fibres surface finishing agent is mass concentration.
Compared with prior art, the present invention adopts and in process of polyester synthesizing, adds hydrophilic modifying agent, polyester fondant direct fabrics, and production cost low (energy consumption reduces by 30%) is spun in section relatively, and the quality uniformity of staple fibre improves 50%, and hydrophilic effect is obvious, by polymerization technique and spinning technique adjustment, the polyester fondant direct fabrics obtained, in obtained as-spun fibre, cyclic trimer content is less than 0.5wt%, stretching heat setting temperature≤190 DEG C, the cyclic trimer that fiber surface can peel off is less than 0.15wt%, the spall of fiber surface obviously reduces, and is applicable to hydro-entangled non-woven fabric processing request, improves the uniformity of non-weaving cloth physical and mechanical properties, by selecting the fiber surface finishing agent with safety and environmental protection performance, to oil arrangement through 8 fiber surfaces in spinning and last handling process, finishing agent is more evenly distributed, and attachment fastness improves, in water thorn process, fiber surface hydrophilic effect improves, hydrophilic monomer PEG participates in copolymerization, make to embed hydrophilic ehter bond in the large molecule of PET, be combined more firm with hydrophilic finishing agent, the hydrophilicity on staple fibre surface is improved further, reach processing and the instructions for use of hydro-entangled non-woven fabric, can all replace viscose staple fibre as non-weaving cloth raw material by 100% use polyester PET staple fibre, good condition is provided for non-weaving cloth holistic cost reduces.
Detailed description of the invention
Embodiment 1
These direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method, its step comprises:
Esterification: employing p-phthalic acid (PTA), ethylene glycol (EG) are raw material, PTA and EG carries out continuous slurry preparation according to 1:1.12 ~ 1:1.3 mol ratio, and provide esterifying kettle to carry out esterification continuously, control esterification reaction temperature be 261 ~ 270 DEG C, esterification yield more than 95% after enter precondensation operation.
Precondensation: the Polymerization Production Line of the daily output 200 tons of PET, the oligomer line of esterifying kettle to precondensation still adds a certain amount of polycondensation catalyst (antimony glycol), the delustering agent (TiO be modulated in EG
2), and increasing the PEG of injection allotment in EG at above-mentioned pipeline, molecular weight is 2000, and addition is the 0.8%wt of polyester, and prepolymerization reaction still is negative pressure, controls at 4 ~ 5kPa, controls reaction temperature 285 ~ 288 DEG C.
Final minification gathers: the precondensation melt containing PEG copolymer enters whole polycondensation vessel by pipeline, deviates from Small molecular further, improves molecular weight.Control final minification gathers reaction temperature and is less than 288 DEG C, and pressure is 2.5 ~ 3.3kPa, and target intrinsic viscosity is 0.75dl/g, fusing point 256 ~ 260 DEG C.The copolyesters melt obtained enters filter by discharging pump, is greater than the impurity of 15 μm in the melt of place to go, and delivers to spinning process by melt booster pump and carry out direct method spinning.
Melt Conveying: the melt Conveying pipeline being exported to spinning manifold from polyester terminal polymerization kettle adopts " eliminating formula "+" octopus type " method of salary distribution, respectively corresponding two cover spinning production lines, often overlapping spinning production line has 4 spinning manifolds, and every casing has 8 spinning stations.Entering the heat exchanger front melt Conveying pipeline of bifurcated (two cover spinning production line) is provided with containing static mixing function, melt walks tube side, heating agent walks shell side, regulate heat medium temperature, make melt enter the temperature of spinning manifold lower than 285 DEG C, object reduces generation and the macromolecular degraded of ether-containing key of cyclic trimer;
Spinning: after melt enters spinning manifold, entered filament spinning component carried out refiltering and further homogenising by measuring pump accurate measurement, the spinnerets of every assembly is containing 3840 holes, melt is extruding spinning under 10MPa pressure, spinning temperature is 288 DEG C, melt stream carries out cooling forming by quenching wind facility from inside to outside, cooling air temperature is 28 DEG C ± 1 DEG C, humidity is 70%RH, spinning silk winding speed is 1250m/min, in spinning quench process, annular lip type contact oiling device is adopted to oil arrangement to dispersity filament Shu Jinhang, the concentration of fiber surface finishing agent is 0.2%, every spinning station tow integrated a branch of after, before 32 spinning station boundlings, adopt the contact of linear pattern lip type to oil to arrange each tow spinning position, the concentration of fiber surface finishing agent is 0.2%, deliver to fiber barrel through twice strand arranged that oils by feeding-wheel, by postprocessing working procedures, Final finishing is carried out to tow, wherein the composition of fiber surface finishing agent comprises:
(1) the aliphatic long-chain ester that is obtained by reacting of aliphatic acid and alcohol, accounts for the 35%wt of finishing agent total amount;
(2) chain alkyl polyethenoxy ether sodium sulfate, accounts for the 35%wt of finishing agent total amount;
(3) fatty alcohol-polyoxyethylene ether, accounts for the 30%wt of finishing agent total amount.
24 rhizoid bars tilings, through creel, are 3 silk sheets, introduce dipping tank by Final finishing: to be stretched by 24 barrels of above-mentioned spinning precursor compositions batch respectively, maceration extract to be concentration be 0.4% fiber surface finishing agent, dipping temperature is 40 DEG C ± 1 DEG C; Tow impregnated is stretched to silk sheet by the first and second stretching-machines after arranging, between two stretchers, again carry out water-bath stretching spray+impregnated finish to silk sheet arrange, fiber surface finishing agent concentration is 0.4%, temperature is 65 DEG C ± 1 DEG C, form second time between 3rd stretching-machine and the second stretching-machine to stretch to silk sheet, the heating of silk sheet is adopted to the uperize of 130 DEG C ± 2 DEG C, total draw ratio is 3.86 times; Silk sheet after stretching adopts the heat shaping roller of steam jacket heating to carry out high-temperature tension sizing, silk sheet setting temperature is 185 DEG C ± 1 DEG C, subsequently, carries out the arrangement of fountain finish on the two sides of silk sheet, temperature is 80 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; 3 silk sheets are built up 1, through steam preheating to 130 DEG C ± 1 DEG C, carry out curling to silk sheet, before crimping by finishing agent spray on crimping wheel to silk sheet spray+friction-type arranges, temperature is 80 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; Silk sheet after curling carries out fountain arrangement again, and temperature is 80 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; Silk sheet is the chain-plate type conveying of 120 DEG C ± 2 DEG C through excess temperature, after heated air drying, enters cut-out operation; Silk sheet before cutting, enter atomization finish case, atomizing oiling arrangement is carried out to silk sheet, finish temperature is 30 DEG C ± 1 DEG C, fiber surface finishing agent concentration is 1.2%, staple fibre after cut-out enters on the passage before baling press and carries out atomizing oiling process to it, and temperature is 30 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; Fiber Bao Chongwei 300kg ± 1kg, adopts outer bag to be PP braiding, liner PE waterproof coating.
Embodiment 2
The present embodiment and embodiment 1 step basically identical, its difference is that the PEG molecular weight added in pre-polymerization compression process is 1500, and addition is the 1.0%wt of polyester.And the composition of fiber surface finishing agent comprises:
(1) the aliphatic long-chain ester that is obtained by reacting of aliphatic acid and alcohol, accounts for the 40%wt of finishing agent total amount;
(2) chain alkyl polyethenoxy ether sodium sulfate, accounts for the 15%wt of finishing agent total amount;
(3) fatty alcohol-polyoxyethylene ether, accounts for the 45%wt of finishing agent total amount.
Embodiment 3
The present embodiment and embodiment 1 step basically identical, its difference is that the PEG molecular weight added in pre-polymerization compression process is 1800, and addition is the 0.5%wt of polyester.And the composition of fiber surface finishing agent is:
(1) the aliphatic long-chain ester that is obtained by reacting of aliphatic acid and alcohol, accounts for the 30%wt of finishing agent total amount;
(2) chain alkyl polyethenoxy ether sodium sulfate, accounts for the 30%wt of finishing agent total amount;
(3) fatty alcohol-polyoxyethylene ether, accounts for the 40%wt of finishing agent total amount.
Comparative example 1
Esterification: employing p-phthalic acid (PTA), ethylene glycol (EG) are raw material, PTA and EG carries out continuous slurry preparation according to 1:1.3 ~ 1:1.12 mol ratio, and provide esterifying kettle to carry out esterification continuously, control esterification reaction temperature be 261 ~ 270 DEG C, esterification yield more than 95% after enter precondensation operation.
Precondensation: the Polymerization Production Line of the daily output 200 tons of PET, the oligomer line of esterifying kettle to precondensation still adds a certain amount of polycondensation catalyst (antimony glycol), the delustering agent (TiO2) be modulated in EG, prepolymerization reaction still is negative pressure, control at 4 ~ 5kPa, control reaction temperature 288 DEG C.
Final minification gathers: precondensation melt enters whole polycondensation vessel by pipeline, deviates from Small molecular further, improves molecular weight.Control final minification gathers reaction temperature and is less than 288 DEG C, and pressure is 2.5 ~ 3.3kPa, and target intrinsic viscosity is 0.670dl/g, fusing point 258 ~ 262 DEG C.The copolyesters melt obtained enters filter by discharging pump, is greater than the impurity of 15 μm in the melt of place to go, and delivers to spinning process by melt booster pump and carry out direct method spinning.
Melt Conveying: the melt Conveying pipeline being exported to spinning manifold from polyester terminal polymerization kettle adopts " eliminating formula "+" octopus type " method of salary distribution, respectively corresponding two cover spinning production lines, no cover spinning production line does not have 4 spinning manifolds, and every casing has 8 spinning stations.Entering the heat exchanger front melt Conveying pipeline of bifurcated (two cover spinning production line) is provided with containing static mixing function, melt walks tube side, heating agent walks shell side, regulate heat medium temperature, make melt enter the temperature of spinning manifold lower than 288 DEG C, object reduces generation and the degraded of cyclic trimer;
Spinning: after melt enters spinning manifold, entered filament spinning component carried out refiltering and further homogenising by measuring pump accurate measurement, the spinnerets of every assembly is containing 3840 holes, melt is extruding spinning under 10MPa pressure, spinning temperature is 288 DEG C, melt stream carries out cooling forming by quenching wind from inside to outside, cooling air temperature is 28 DEG C ± 1 DEG C, humidity is 70%RH, spinning silk winding speed is 1250m/min, in spinning quench process, annular lip type contact oiling device is adopted to oil arrangement to dispersity filament Shu Jinhang, the concentration of finishing agent is 0.4%, every spinning station tow integrated a branch of after, before 32 spinning station boundlings, adopt the contact of linear pattern lip type to oil to arrange each tow spinning position, the concentration of finishing agent is 0.4%, fiber barrel is delivered to by feeding-wheel through twice strand arranged that oils, by postprocessing working procedures, Final finishing is carried out to tow,
Final finishing: 24 barrels of above-mentioned spinning precursor compositions to be stretched batch, through creel, be 3 silk sheets by 24 rhizoid bars tilings respectively, introduce dipping tank, maceration extract is 100% finishing agent composition, and concentration is 0.4%, and dipping temperature is 40 DEG C ± 1 DEG C; Tow impregnated is stretched to silk sheet by the first and second stretching-machines after arranging, between two stretchers, again carry out water-bath stretching spray+impregnated finish to silk sheet arrange, concentration is 0.4%, temperature is 65 DEG C ± 1 DEG C, form second time between 3rd stretching-machine and the second stretching-machine to stretch to silk sheet, the heating of silk sheet is adopted to the uperize of 130 DEG C ± 2 DEG C, total draw ratio is 3.86 times; Silk sheet after stretching adopts the heat shaping roller of steam jacket heating to carry out high-temperature tension sizing, and silk sheet setting temperature is 185 DEG C ± 1 DEG C, subsequently, carries out the arrangement of fountain finish on the two sides of silk sheet, and temperature is 80 DEG C ± 1 DEG C, and concentration is 2.0%; 3 silk sheets are built up 1, through steam preheating to 130 DEG C ± 1 DEG C, carry out curling to silk sheet, before crimping by finishing agent spray on crimping wheel to silk sheet spray+friction-type arranges, temperature is 80 DEG C ± 1 DEG C, and concentration is 2.0%; Silk sheet after curling carries out fountain arrangement again, and temperature is 80 DEG C ± 1 DEG C, and concentration is 2.0%; Silk sheet, after the chain-plate type conveying heated air drying that excess temperature is 120 DEG C ± 2 DEG C, enters cut-out operation; Silk sheet before cutting, enters atomization finish case, carries out atomizing oiling arrangement to silk sheet, finish temperature is 30 DEG C ± 1 DEG C, and concentration is 2.0%, and the staple fibre after cut-out enters on the passage before baling press and carries out atomizing oiling process to it, temperature is 30 DEG C ± 1 DEG C, and concentration is 2.0%; Fiber Bao Chongwei 300kg ± 1kg, adopts outer bag to be PP braiding, liner PE waterproof coating.
Comparative example 2
Esterification: employing p-phthalic acid (PTA), ethylene glycol (EG) are raw material, PTA and EG carries out continuous slurry preparation according to 1:1.3 ~ 1:1.12 mol ratio, and provide esterifying kettle to carry out esterification continuously, control esterification reaction temperature be 261 ~ 270 DEG C, esterification yield more than 95% after enter precondensation operation.
Precondensation: the Polymerization Production Line of the daily output 200 tons of PET, the oligomer line of esterifying kettle to precondensation still adds a certain amount of polycondensation catalyst (antimony glycol), the delustering agent (TiO2) be modulated in EG, prepolymerization reaction still is negative pressure, control at 4 ~ 5kPa, control reaction temperature 285 ~ 288 DEG C.
Final minification gathers: precondensation melt enters whole polycondensation vessel by pipeline, deviates from Small molecular further, improves molecular weight.Control final minification gathers reaction temperature and is less than 290 DEG C, and pressure is 2.5 ~ 3.3kPa, and target intrinsic viscosity is 0.67dl/g, fusing point 258 ~ 262 DEG C.The copolyesters melt obtained enters filter by discharging pump, is greater than the impurity of 15 μm in the melt of place to go, and delivers to spinning process by melt booster pump and carry out direct method spinning.
Melt Conveying: the melt Conveying pipeline being exported to spinning manifold from polyester terminal polymerization kettle adopts " eliminating formula "+" octopus type " method of salary distribution, respectively corresponding two cover spinning production lines, no cover spinning production line does not have 4 spinning manifolds, and every casing has 8 spinning stations.
Spinning: after melt enters spinning manifold, there is measuring pump accurate measurement and enter filament spinning component and carry out refiltering and further homogenising, the spinnerets of every assembly is containing 3840 holes, melt is extruding spinning under 10MPa pressure, spinning temperature is 290 DEG C, melt stream carries out cooling forming by quenching wind from inside to outside, cooling air temperature is 28 DEG C ± 1 DEG C, humidity is 70%RH, spinning silk winding speed is 1250m/min, in spinning quench process, annular lip type contact oiling device is adopted to oil arrangement to dispersity filament Shu Jinhang, the main component of finish is antistatic additive 70%, boundling, lubricant 30%, oil concentration is 0.2%, every spinning station tow integrated a branch of after, before 32 spinning station boundlings, adopt the contact of linear pattern lip type to oil to arrange each tow spinning position, concentration is 0.2%, fiber barrel is delivered to by feeding-wheel through twice strand arranged that oils, by postprocessing working procedures, Final finishing is carried out to tow,
Final finishing: 24 barrels of above-mentioned spinning precursor compositions to be stretched batch, through creel, be 3 silk sheets by 24 rhizoid bars tilings respectively, introduce dipping tank, maceration extract is 50% finish composition, and concentration is 0.4%, and dipping temperature is 40 DEG C ± 1 DEG C; Tow impregnated is stretched to silk sheet by the first and second stretching-machines after arranging, between two stretchers, again water-bath stretching is carried out to silk sheet, temperature is 65 DEG C ± 1 DEG C, form second time between 3rd stretching-machine and the second stretching-machine to stretch to silk sheet, the heating of silk sheet is adopted to the uperize of 130 DEG C ± 2 DEG C, total draw ratio is 3.86 times; Silk sheet after stretching adopts the heat shaping roller of steam jacket heating to carry out high-temperature tension sizing, and silk sheet setting temperature is 185 DEG C ± 1 DEG C, subsequently, carries out the arrangement of fountain finish on the two sides of silk sheet, and temperature is 80 DEG C ± 1 DEG C, and concentration is 0.8%; 3 silk sheets are built up 1, through steam preheating to 130 DEG C ± 1 DEG C, carries out curling to silk sheet; Silk sheet after curling carries out fountain again and oils, and temperature is 80 DEG C ± 1 DEG C, and concentration is 0.8%; Silk sheet, after the chain-plate type conveying heated air drying that excess temperature is 120 DEG C ± 2 DEG C, enters cut-out operation; Staple fibre after cut-out enters baling press packaging, fiber Bao Chongwei 300kg ± 1kg, adopts outer bag to be PP braiding, liner PE waterproof coating.
Embodiment 1-3 is obtained the polyester staple fiber that polyester staple fiber and comparative example 1-2 obtain and carry out performance test, test result is as shown in table 1.
Table 1 embodiment and comparative example polyester staple fiber test result
Note *: cyclic trimer content refers to the content of fiber surface.
Note * *: get the sample being not less than 1.0g, place balance in standard laboratory and weigh after 24 hours, being accurate to 0.01g, is sample original weight W
0, test to be immersed in pure water 60 seconds, error is taken out after being no more than 1 second, and hang and drip 120 seconds, error is weighed after being no more than 3 seconds, as the sample weight W after water suction
1.Water absorption rate=(W
1/ W
0-1) × 100%.
Claims (7)
1. a direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method, comprise that the esterification of polyester pulp, precondensation, final minification are poly-, spinning and Final finishing, it is characterized in that: on the Location Detection of Medium Transportation Pipeline of esterifying kettle to precondensation still, PEG is added in injection, the PEG molecular weight added is 1500 ~ 2000, and addition is 0.5 ~ 1.0%wt of polyester fondant.
2. direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method according to claim 1, is characterized in that: temperature≤290 DEG C of polyester pulp in whole polycondensation reaction, to reduce the generation of cyclic trimer.
3. direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method according to claim 2, it is characterized in that: after melt is by terminal polymerization kettle discharging pump, to the melt Conveying pipeline of spinning manifold, set up the heat exchanger containing static mixing function, melt walks tube side, heating agent walks shell side, temperature before making polyester fondant enter spinning manifold is reduced to≤and 285 DEG C, spinning temperature controls at 285 ~ 289 DEG C, the temperature of quenching wind and the difference of melt temperature between 255 ~ 265 DEG C, and adopt quenching mode from inside to outside.
4. direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method according to claim 3, it is characterized in that: in spinning in staple fibre packaging process, 8 places are had to use fiber surface finishing agent to carry out antistatic to fiber surface respectively, hydrophily and fluent movement, the annular lip type contact laying respectively at (a) spinning quench process arranges, b the linear pattern lip type contact before () winding arranges, c after () tow boundling, impregnated arranges, d () water-bath stretching spray+impregnated arranges, e the fountain after () high-temperature tension HEAT SETTING arranges, f () is curling before, spray+friction-type arranges, g () curling rear fountain arranges, h () cuts off before, rear atomization arranges.
5. direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method according to claim 4, it is characterized in that: in spinning process, after melt enters spinning manifold, entered filament spinning component carried out refiltering and further homogenising by measuring pump accurate measurement, melt is extruding spinning under 10MPa pressure, melt stream carries out cooling forming by quenching wind facility from inside to outside, cooling air temperature is 28 DEG C ± 1 DEG C, humidity is 70%RH, spinning silk winding speed is 1250m/min, in spinning quench process, annular lip type contact oiling device is adopted to oil arrangement to dispersity filament Shu Jinhang, the concentration of fiber surface finishing agent is 0.2%, every spinning station tow integrated a branch of after, before 32 spinning station boundlings, adopt the contact of linear pattern lip type to oil to arrange each tow spinning position, the concentration of fiber surface finishing agent is 0.2%, through to oil for twice, the strand arranged delivers to fiber barrel by feeding-wheel, carries out Final finishing by operation below to tow.
6. direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method according to claim 5, it is characterized in that: in Final finishing step, the spinning precursor composition obtained by 24 barrels of spinning process stretches and criticizes, through creel, being tiled by 24 rhizoid bars is respectively 3 silk sheets, introduce dipping tank, fiber surface finishing agent concentration is 0.4%, and dipping temperature is 40 DEG C ± 1 DEG C; Tow impregnated is stretched to silk sheet by the first and second stretching-machines after arranging, between two stretchers, again carry out water-bath stretching spray+impregnated finish to silk sheet arrange, fiber surface finishing agent concentration is 0.4%, temperature is 65 DEG C ± 1 DEG C, form second time between 3rd stretching-machine and the second stretching-machine to stretch to silk sheet, the heating of silk sheet is adopted to the uperize of 130 DEG C ± 2 DEG C, total draw ratio is 3.86 times; Silk sheet after stretching adopts the heat shaping roller of steam jacket heating to carry out high-temperature tension sizing, silk sheet setting temperature is 185 DEG C ± 1 DEG C, subsequently, carries out the arrangement of fountain finish on the two sides of silk sheet, temperature is 80 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; 3 silk sheets are built up 1, through steam preheating to 130 DEG C ± 1 DEG C, carry out curling to silk sheet, before crimping by finishing agent spray on crimping wheel to silk sheet spray+friction-type arranges, temperature is 80 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; Silk sheet after curling carries out fountain arrangement again, and temperature is 80 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; Silk sheet is the chain-plate type conveying of 120 DEG C ± 2 DEG C through excess temperature, after heated air drying, enters cut-out operation; Silk sheet before cutting, enter atomization finish case, atomizing oiling arrangement is carried out to silk sheet, finish temperature is 30 DEG C ± 1 DEG C, fiber surface finishing agent concentration is 1.2%, staple fibre after cut-out enters on the passage before baling press and carries out atomizing oiling process to it, and temperature is 30 DEG C ± 1 DEG C, and fiber surface finishing agent concentration is 1.2%; Fiber Bao Chongwei 300kg ± 1kg, adopts outer bag to be PP braiding, liner PE waterproof coating.
7. the hydrophilic polyester staple fibre manufacture method of the direct fabrics hydro-entangled non-woven fabric according to any one of claim 4-6, is characterized in that: the composition of described fiber surface finishing agent comprises:
(1) the aliphatic long-chain ester that is obtained by reacting of aliphatic acid and alcohol, accounts for 30 ~ 40%wt of finishing agent total amount;
(2) chain alkyl polyethenoxy ether sodium sulfate, accounts for 15 ~ 35%wt of finishing agent total amount;
(3) fatty alcohol-polyoxyethylene ether, accounts for 30 ~ 45%wt of finishing agent total amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631035.5A CN104328531B (en) | 2014-11-11 | 2014-11-11 | Direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631035.5A CN104328531B (en) | 2014-11-11 | 2014-11-11 | Direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104328531A true CN104328531A (en) | 2015-02-04 |
| CN104328531B CN104328531B (en) | 2016-04-20 |
Family
ID=52403335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410631035.5A Active CN104328531B (en) | 2014-11-11 | 2014-11-11 | Direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104328531B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105063792A (en) * | 2015-07-24 | 2015-11-18 | 江苏江南高纤股份有限公司 | Direct spinning antibacterial and flame-retardant polyester wool type fiber filament bundle, manufacturing method and production system thereof |
| CN107304488A (en) * | 2016-04-20 | 2017-10-31 | 福建省海兴凯晟科技有限公司 | A kind of new down-like composite filled fiber of high loft and preparation method thereof |
| CN107723827A (en) * | 2016-08-10 | 2018-02-23 | 中国纺织科学研究院 | A kind of absorbing fast-drying original liquid coloring fiber and preparation method thereof |
| CN108411398A (en) * | 2018-03-05 | 2018-08-17 | 江苏宏泰纤维科技有限公司 | A kind of production technology of polyester fiber |
| CN109322003A (en) * | 2018-10-30 | 2019-02-12 | 江苏江南高纤股份有限公司 | High hydrophilic no antimony spun lacing dedicated fiber manufacturing method |
| CN111041734A (en) * | 2019-12-27 | 2020-04-21 | 张家港市华科毛纺有限公司 | Spray type anti-static finishing device and fabric anti-static finishing process |
| CN111655919A (en) * | 2018-01-25 | 2020-09-11 | 东丽株式会社 | Spun-bonded non-woven fabric |
| CN111979590A (en) * | 2020-08-22 | 2020-11-24 | 江苏江南高纤股份有限公司 | Biodegradable alcohol modified copolyester wool top and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289769A (en) * | 2008-06-05 | 2008-10-22 | 江苏江南高纤股份有限公司 | Method of producing lighting terylene short fiber |
| CN101469060A (en) * | 2007-12-29 | 2009-07-01 | 厦门翔鹭化纤股份有限公司 | Preparation of cationic dyeable poly(trimethylene terephthalate) |
| CN101704941A (en) * | 2009-11-05 | 2010-05-12 | 江阴博伦化纤有限公司 | Method for preparing high-flexibility PET copolymer used in spun-lace non-woven fabrics |
| CN101735430A (en) * | 2009-12-29 | 2010-06-16 | 上海聚友化工有限公司 | Method for continuously preparing modified polyester |
| CN101935894A (en) * | 2010-09-02 | 2011-01-05 | 王庆昭 | Method and equipment for preparing ultrahigh molecular weight polyethylene fibers |
| CN103397519A (en) * | 2013-07-03 | 2013-11-20 | 江苏华西村股份有限公司特种化纤厂 | Method for producing polyester staple fiber special for high-cleanness nonwoven spunlace |
-
2014
- 2014-11-11 CN CN201410631035.5A patent/CN104328531B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469060A (en) * | 2007-12-29 | 2009-07-01 | 厦门翔鹭化纤股份有限公司 | Preparation of cationic dyeable poly(trimethylene terephthalate) |
| CN101289769A (en) * | 2008-06-05 | 2008-10-22 | 江苏江南高纤股份有限公司 | Method of producing lighting terylene short fiber |
| CN101704941A (en) * | 2009-11-05 | 2010-05-12 | 江阴博伦化纤有限公司 | Method for preparing high-flexibility PET copolymer used in spun-lace non-woven fabrics |
| CN101735430A (en) * | 2009-12-29 | 2010-06-16 | 上海聚友化工有限公司 | Method for continuously preparing modified polyester |
| CN101935894A (en) * | 2010-09-02 | 2011-01-05 | 王庆昭 | Method and equipment for preparing ultrahigh molecular weight polyethylene fibers |
| CN103397519A (en) * | 2013-07-03 | 2013-11-20 | 江苏华西村股份有限公司特种化纤厂 | Method for producing polyester staple fiber special for high-cleanness nonwoven spunlace |
Non-Patent Citations (1)
| Title |
|---|
| 赵彦民 等: "《涤纶短纤维生产设备》", 31 May 1992, article "熔体输送装置" * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105063792A (en) * | 2015-07-24 | 2015-11-18 | 江苏江南高纤股份有限公司 | Direct spinning antibacterial and flame-retardant polyester wool type fiber filament bundle, manufacturing method and production system thereof |
| CN105063792B (en) * | 2015-07-24 | 2018-08-21 | 江苏江南高纤股份有限公司 | Direct fabrics antibacterial, flame retardant polyester wool type fiber endless tow and its manufacturing method and production system |
| CN107304488A (en) * | 2016-04-20 | 2017-10-31 | 福建省海兴凯晟科技有限公司 | A kind of new down-like composite filled fiber of high loft and preparation method thereof |
| CN107723827A (en) * | 2016-08-10 | 2018-02-23 | 中国纺织科学研究院 | A kind of absorbing fast-drying original liquid coloring fiber and preparation method thereof |
| CN107723827B (en) * | 2016-08-10 | 2020-04-10 | 中国纺织科学研究院有限公司 | Moisture-absorbing quick-drying stock solution coloring fiber and preparation method thereof |
| CN111655919A (en) * | 2018-01-25 | 2020-09-11 | 东丽株式会社 | Spun-bonded non-woven fabric |
| CN108411398A (en) * | 2018-03-05 | 2018-08-17 | 江苏宏泰纤维科技有限公司 | A kind of production technology of polyester fiber |
| CN109322003A (en) * | 2018-10-30 | 2019-02-12 | 江苏江南高纤股份有限公司 | High hydrophilic no antimony spun lacing dedicated fiber manufacturing method |
| CN111041734A (en) * | 2019-12-27 | 2020-04-21 | 张家港市华科毛纺有限公司 | Spray type anti-static finishing device and fabric anti-static finishing process |
| CN111041734B (en) * | 2019-12-27 | 2022-04-05 | 张家港市华科毛纺有限公司 | Spray type anti-static finishing device and fabric anti-static finishing process |
| CN111979590A (en) * | 2020-08-22 | 2020-11-24 | 江苏江南高纤股份有限公司 | Biodegradable alcohol modified copolyester wool top and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104328531B (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104328531B (en) | Direct fabrics hydro-entangled non-woven fabric hydrophilic polyester staple fibre manufacture method | |
| CN105155033B (en) | A kind of composite fibre of Flameproof polyamide 6 and preparation method thereof | |
| CN106811870A (en) | A kind of super soft S/S solids double-component viscose non-woven material and preparation method thereof | |
| CN101265661B (en) | Ready-made clothes after-finishing process | |
| CN105586660B (en) | A kind of hydrophilic production method for leading wet vortex spinning dedicated polyester staple fiber | |
| CN106337212A (en) | Side-by-side composite PBT polyester fiber and preparation method thereof | |
| CN106894102B (en) | The compound direct spinning system of Efficient polyolefin/polyester sheath core and method | |
| CN106435781B (en) | A kind of moisture absorption is ventilative to imitate numb nylon fibre and preparation method thereof | |
| CN109234846A (en) | The preparation method of Kang Shu composite short fiber | |
| CN102162152A (en) | Polyester fiber and fabric | |
| CN102965761A (en) | One-step-process hydrophilic dacron/high-shrinkage dacron combined yarn and preparation method thereof | |
| CN101724923A (en) | Full-drawn yarn of super fine polyester and manufacturing process thereof | |
| CN108677268A (en) | A kind of composite type modified polyamide fibre preparation method and application | |
| CN103572399B (en) | A kind of core-sheath compound fibre and production method thereof | |
| CN103173889B (en) | Wool-like polyester staple fiber and preparation method thereof | |
| CN105064029B (en) | A kind of superbright light polyester DTY fiber and preparation method thereof | |
| CN107761189A (en) | A kind of preparation method of the refreshing anti-bacterial fibre of super fine denier suction ice | |
| CN101694020A (en) | Coat-core fiber of polylactic acid and polyethylene butanediol succinate | |
| CN102345180A (en) | M-phthalic acid modified terylene low elastic network fiber | |
| US20210388536A1 (en) | Elastic composite fiber and fabrication method therefor | |
| CN102787383A (en) | 1,2-propylene glycol modified terylene fully drawn yarn | |
| CN103276487B (en) | A kind of manufacture method of chinlon multifunctionality ash bamboo charcoal silk | |
| CN104562247A (en) | Dacron anti-radiation wool top production technology | |
| CN102071479B (en) | Manufacturing method of water-proof and oil-proof coloured polyester staple fibers | |
| CN104629042A (en) | Method for preparing nano-TiO2 nylon 66 resin and fibre having anti-ultraviolet function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |