CN104294394A - Processing process of POY composite filament multipath pre-meshed filament - Google Patents
Processing process of POY composite filament multipath pre-meshed filament Download PDFInfo
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- CN104294394A CN104294394A CN201310298607.8A CN201310298607A CN104294394A CN 104294394 A CN104294394 A CN 104294394A CN 201310298607 A CN201310298607 A CN 201310298607A CN 104294394 A CN104294394 A CN 104294394A
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Abstract
The invention relates to a processing process of a POY composite filament multipath pre-meshed filament. By the special design of steps including subjecting a polyester raw material to viscosity increasing processing, performing modulus-increasing shrinkage-reducing melt processing, subjecting the melt to multistage direct-melting and spinning, preparing subjecting a filament to multipath pre-meshing, and applying oil, and by special optimization of related parameters, the processing process of the multipath pre-meshed filament is formed. The process achieves excellent effects of the meshed filament in comfort and textile aspects such as appearance, style, resistance to deformation, low elasticity performance, low shrinkage and cluster performance.
Description
Technical field
The present invention relates to pre-network long filament technical field, particularly relate to the processing technology of the pre-network long filament of a kind of multiple tracks, relate to the processing technology of the pre-network long filament of a kind of POY bicomponent filament yarn multiple tracks in particular.
Background technology
Nearest Two decades years comes, and fine denier lustrous flat terylene pre-oriented yarn adopts glossy polyester melt to be raw material, is made by the operation such as spinning, stretching.The preparation method of fine denier lustrous flat terylene pre-oriented yarn in current polyster fibre industry: with glossy polyester melt for raw material, after booster pump supercharging, spinning manifold is sent into by melt Conveying pipeline, and through measuring pump accurate measurement, melt shape fiber is formed after the filament spinning component in spinning manifold filters, become as-spun fibre through lateral blowing cooling curing again, wherein spinnerets is single setting, then after oil nozzle oils, integrate through pre-Network device, finally by winding head package build.
The shortcoming of above-mentioned preparation method is: the mode adopting lateral blowing in cooling curing operation, due near lateral blowing one side intake relatively large, side and back side air quantity relatively little, add the impact of thin denier flat degree, melt stream specific area increases, under identical cooling condition, as-spun fibre is easier to heat radiation, and cooling velocity is faster, the degree of orientation and degree of crystallinity higher, thus making product inhomogeneous cooling even, product bar evenness is bad, lousiness is many, spinnability is poor, is unfavorable for aft-loaded airfoil; Spinnerets is single setting in addition, and when production has light flat terylene drafted fibre, flatness easily morphs, and production capacity is low.
According to TITANIUM DIOXIDE DELUSTRANT TiO in slices of caprone
2the difference of content, slices of caprone is generally divided into greatly light, half delustring and full-dull.TiO in large bright chip
2mass fraction is 0%, and the TiO2 mass fraction in semi-dulling chips is 0.30%+0.05%, the TiO in full-dull polyester
2mass fraction is up to 2.5% ± 0.1%.The essential difference of semi-dulling chips and full-dull polyester is TiO
2content is different, and the latter is the former more than 8 times.The advantages such as full-dull polyester not only reduces the reflective of fiber and scintillation, and it is soft to make subsequent fiber have gloss, and deep-cutting gorge is good, and fabric fall is high, and screening performance is strong, can meet the demand making high-grade clothing.
Concerning full-dull nylon 6 spinning, higher TIO
2content, had both played the effect of plasticising, also made the impurity of melt increase, but in spinning process, the mobility of melt is deteriorated, and cause spinnability to be deteriorated, the silk that wafts is many, end breakage rate increases, and full cylinder rate reduces, and aft-loaded airfoil yarn bulking intensity is uneven, network lack of homogeneity, stiff some lousiness is many, intensity is low.In order to obtain excellent spinnability and fibre property, except full-dull nylon 6-slice and spinning equipment be there are certain requirements, also reasonably must select spinning process condition, as the selection, spinning temperature, cooling condition, spinning speed, oil applying rate, winding speed etc. of spinnerets.
For the above-mentioned defect existed in currently available technology, be necessary to study in fact, to provide a kind of scheme, solve the defect existed in prior art, avoid causing the silk that wafts of full-dull thin dawn light network polyamide fibre 6DTY many, end breakage rate increases, and full cylinder rate reduces, and aft-loaded airfoil yarn bulking intensity is uneven, network lack of homogeneity, stiff some lousiness is many, intensity is low.
In recent years, polyamide fibre+spandex covered yarn has become the new lover of textile industry, because the single fiber degree of fine-denier porous chinlon filament is little, with the fabric that this microfibre is made into have soft, gloss is soft, the characteristic such as high-flexibility and high-hydroscopicity, the comfortableness of human body to fabric is made to be better than polyester fabric, catered to people advocate and pursue requirement that is comfortable, various, high-grade, that lie fallow, thus fine-denier porous polyamide fibre 6 elastic filament becomes the outstanding raw material of production polyamide fibre+spandex covered yarn with the characteristic of excellence.It is therefore, derivative that to develop fine-denier porous polyamide fibre 6 elastic filament with high characteristic be necessary.Along with nylon fibre continuing to bring out in new technology, new construction, plastics on new materials, new technology etc., nylon stretch yarn is also used widely in grade textiles industries such as fancy yarns, water jet looms, circular knitting machines.
Because of low-titer porous number, fine-denier porous light network nylon 6 DTY in spinning, add in the production process of bullet, easily produce evenness fault, broken end, bulking intensity be inadequate, network is irregular, the problem such as uneven dyeing.Wherein, in spinning process, easily there are the quality problems such as evenness fault, lousiness and broken end in POY; In texturing process, the impact of Cyber process technique on the dye uniformity of silk, fracture strength is comparatively obvious.
Along with the development of society, the raising day by day of chemical fibre technology and people's living standard, the improvement of terylene dress ornament performance comfortable and easy to wear and the raising of visual sense of beauty particularly important, various functional form, differentiated product constantly occurs, wherein the functional embodiment of most differentiation of product requires that polyster fibre has good special-shaped degree or degree of hollowness, and process will have good guarantor's type effect, can meet the functional requirements of garment material.The flat traction machine of prior art, its structures shape heavy denier yarn because of heating distance and the time short, be heated irregular and insufficient, be unfavorable for Uniform Tension, easily heat is wet shrinks irregular for product, and fabric size is unstable, and feel is good not.
False twisting distortion elasticizer only for the production of stretch textured yarn, cannot ensure the fidelity performances such as finished product degree of profile and degree of hollowness usually, and is difficult to produce FDY product.Produce above-mentioned fullly drawn yarn (FDY) FDY or the technique for the high polyster fibre long filament of the conformal such as degree of profile, degree of hollowness performance requirement with it, do not have to find relevant or close report in Chinese patent literature.
Summary of the invention
The object of the invention is to carry out large quantifier elimination for technical problem of the prior art, a kind of unique design of processing technology step from the pre-network long filament of POY bicomponent filament yarn multiple tracks and the special optimization of related process parameters are provided, form the processing technology of the pre-network long filament of a kind of POY bicomponent filament yarn multiple tracks, reach network long filament and to serve as a lookout outside the more excellent effect of the aspect performances that are comfortable and that can weave such as lattice sense, resistance to deformation, low elasticity energy, lower shrinkage, bunch vertical property.
For achieving the above object, the present invention is achieved by the following technical solutions:
The processing technology of the pre-network long filament of a kind of POY bicomponent filament yarn multiple tracks of the present invention, it is characterized in that, the processing technology of described POY bicomponent filament yarn multiple tracks pre-network long filament comprises the sticky process of polyester raw material height, the multistage straight melt-spun silk of High Modulus And Low Shrinkage melt treatment, melt, the pre-network long filament of multiple tracks and oiling treatment thereof successively.
Wherein, the sticky process of described polyester raw material height: take polyester slice 75 parts, polyethyleneglycol diacrylate 3 parts, sodium carboxymethylcellulose 4 parts, 7 parts, acrylic acid, potassium phosphate 11 parts by weight respectively; Then after polyester slice being cut into particulate, by polyester slice particulate and potassium phosphate according to carrying out pre-crystallized first at the first pre-crystallized pipe after weight portion 35 parts and 5 parts of Homogeneous phase mixing, again by polyester slice particulate and potassium phosphate according to carrying out again pre-crystallized at the second pre-crystallized pipe after weight portion 40 parts and 6 parts of Homogeneous phase mixing, then the polyester mixture section after first and second is pre-crystallized is cut into particulate respectively again, then Homogeneous phase mixing, then insert in the 3rd pre-crystallized pipe that to carry out third time pre-crystallized; Wherein, first pre-crystallized carry out 75 minutes after, carry out again pre-crystallized; Temperature pre-crystallized is first 145 ~ 147 DEG C, total time is 110 ~ 112min, and again pre-crystallized temperature is 165 ~ 173 DEG C, the time is 35 ~ 37min, third time pre-crystallized temperature be 187 ~ 192 DEG C, the time is 65 ~ 70min; Then by third time pre-crystallized after section be cooled to 26 DEG C keep 65 minutes, polyethyleneglycol diacrylate, sodium carboxymethylcellulose, the acrylic acid Homogeneous phase mixing of 3 parts, 4 parts, 7 parts is respectively again with weight portion, then according to the temperature increase rate of 2 DEG C/min, be increased to 215 DEG C of maintenances and fully carry out high temperature polycondensation in 2 ~ 3 hours, the viscosity obtaining polyester mixture is 1.92 ~ 1.95dl/g;
Described High Modulus And Low Shrinkage melt treatment: be that the polyester mixture melt thing of 1.92 ~ 1.95dl/g adds successively in two rotary reactors of infrared heating and carries out melt process by the above-mentioned viscosity obtained; Wherein, by polyester fondant thing and pore eliminator according to weight ratio 65:1.7, when adding the rotary reactor of first infrared heating, temperature is 325 DEG C, then with the temperature rate of 0.03 DEG C/min, keep 65 ~ 68 minutes after being at the uniform velocity increased to 343 DEG C, the rotary speed of the rotary reactor of described infrared heating is 145 ~ 155 revs/min; Then being joined by U-shaped melt canal by the polyester mixture of described first rotary reactor of infrared heating is built-in with in second rotary reactor of infrared heating of flux, the rotary speed of described second rotary reactor of infrared heating at the uniform velocity remains on 65 ~ 75 revs/min all the time, when being at the uniform velocity increased to 245 DEG C with the temperature rate of 3 DEG C/min from 215 DEG C, keep 85 ~ 95 minutes; Wherein, described pore eliminator be trifluoroethanol, dichloroacetic acid, glacial acetic acid, zinc chloride according to weight portion 8 parts, 1 part, 3 parts, 5 parts, under temperature 45 C, Homogeneous phase mixing is after 35 ~ 39 minutes, is at the uniform velocity warming up to 135 DEG C and after keeping 65 ~ 68 minutes, is more at the uniform velocity cooled to 25 DEG C of mixtures obtained; Described flux be vinyl acetate, sodium hydrogensulfite, azodiisobutyronitrile according to weight portion 12 parts, 5 parts, 7 parts, at temperature 145 DEG C, Homogeneous phase mixing is after 25 ~ 28 minutes, is at the uniform velocity cooled to 16 DEG C and the mixture obtained after keeping 55 minutes;
The multistage straight melt-spun silk of described melt, homogeneous mixture after above-mentioned High Modulus And Low Shrinkage melt treatment is added double screw extruder, becoming through the melt extruded of double screw extruder can the polymer melt of spinning, at spinning temperature 322 ~ 335 DEG C, deliver to spinning pump accurate measurement by melt distributing pipe after filtration, be evenly distributed to the nascent strand of ejection in the composite spinneret assembly be incubated by spinning manifold accordingly by multiple isometric S shape melt pipe;
Described multiple tracks pre-network long filament and oiling treatment thereof: more above-mentioned nascent strand is carried out cooling forming through ring blowing device successively, oil nozzle oils, and then carries out drawing and heat-setting; And then successively after multiple tracks tension rollers and multiple pre-Network device, again after one tension control roll, enter the draw zone being provided with three groups of drawing-off hot-rollings again and carry out share split drawing-off, again after six groups of sizing hot-rolling share split HEAT SETTING of symmetry, plying enters master network device and carries out network processes, then carries out coiling and molding via up-coiler.
Beneficial effect relative to prior art:
The morphotropism of the pre-network long filament of POY bicomponent filament yarn multiple tracks that the processing technology of POY bicomponent filament yarn multiple tracks of the present invention pre-network long filament prepares, uniformity, colouring, filament outward appearance and excellent touch.
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Detailed description of the invention
Below in conjunction with detailed description of the invention, set forth the present invention further.
Embodiment 1:
The processing technology of the pre-network long filament of a kind of POY bicomponent filament yarn multiple tracks, it is characterized in that, the processing technology of described POY bicomponent filament yarn multiple tracks pre-network long filament comprises the sticky process of polyester raw material height, the multistage straight melt-spun silk of High Modulus And Low Shrinkage melt treatment, melt, the pre-network long filament of multiple tracks and oiling treatment thereof successively.
Embodiment 2:
The processing technology of the pre-network long filament of a kind of POY bicomponent filament yarn multiple tracks, it is characterized in that, the processing technology of described POY bicomponent filament yarn multiple tracks pre-network long filament comprises the sticky process of polyester raw material height, the multistage straight melt-spun silk of High Modulus And Low Shrinkage melt treatment, melt, the pre-network long filament of multiple tracks and oiling treatment thereof successively; The sticky process of described polyester raw material height: take polyester slice 75 parts, polyethyleneglycol diacrylate 3 parts, sodium carboxymethylcellulose 4 parts, 7 parts, acrylic acid, potassium phosphate 11 parts by weight respectively; Then after polyester slice being cut into particulate, by polyester slice particulate and potassium phosphate according to carrying out pre-crystallized first at the first pre-crystallized pipe after weight portion 35 parts and 5 parts of Homogeneous phase mixing, again by polyester slice particulate and potassium phosphate according to carrying out again pre-crystallized at the second pre-crystallized pipe after weight portion 40 parts and 6 parts of Homogeneous phase mixing, then the polyester mixture section after first and second is pre-crystallized is cut into particulate respectively again, then Homogeneous phase mixing, then insert in the 3rd pre-crystallized pipe that to carry out third time pre-crystallized; Wherein, first pre-crystallized carry out 75 minutes after, carry out again pre-crystallized; Temperature pre-crystallized is first 145 ~ 147 DEG C, total time is 110 ~ 112min, and again pre-crystallized temperature is 165 ~ 173 DEG C, the time is 35 ~ 37min, third time pre-crystallized temperature be 187 ~ 192 DEG C, the time is 65 ~ 70min; Then by third time pre-crystallized after section be cooled to 26 DEG C keep 65 minutes, polyethyleneglycol diacrylate, sodium carboxymethylcellulose, the acrylic acid Homogeneous phase mixing of 3 parts, 4 parts, 7 parts is respectively again with weight portion, then according to the temperature increase rate of 2 DEG C/min, be increased to 215 DEG C of maintenances and fully carry out high temperature polycondensation in 2 ~ 3 hours, the viscosity obtaining polyester mixture is 1.92 ~ 1.95dl/g;
Described High Modulus And Low Shrinkage melt treatment: be that the polyester mixture melt thing of 1.92 ~ 1.95dl/g adds successively in two rotary reactors of infrared heating and carries out melt process by the above-mentioned viscosity obtained; Wherein, by polyester fondant thing and pore eliminator according to weight ratio 65:1.7, when adding the rotary reactor of first infrared heating, temperature is 325 DEG C, then with the temperature rate of 0.03 DEG C/min, keep 65 ~ 68 minutes after being at the uniform velocity increased to 343 DEG C, the rotary speed of the rotary reactor of described infrared heating is 145 ~ 155 revs/min; Then being joined by U-shaped melt canal by the polyester mixture of described first rotary reactor of infrared heating is built-in with in second rotary reactor of infrared heating of flux, the rotary speed of described second rotary reactor of infrared heating at the uniform velocity remains on 65 ~ 75 revs/min all the time, when being at the uniform velocity increased to 245 DEG C with the temperature rate of 3 DEG C/min from 215 DEG C, keep 85 ~ 95 minutes; Wherein, described pore eliminator be trifluoroethanol, dichloroacetic acid, glacial acetic acid, zinc chloride according to weight portion 8 parts, 1 part, 3 parts, 5 parts, under temperature 45 C, Homogeneous phase mixing is after 35 ~ 39 minutes, is at the uniform velocity warming up to 135 DEG C and after keeping 65 ~ 68 minutes, is more at the uniform velocity cooled to 25 DEG C of mixtures obtained; Described flux be vinyl acetate, sodium hydrogensulfite, azodiisobutyronitrile according to weight portion 12 parts, 5 parts, 7 parts, at temperature 145 DEG C, Homogeneous phase mixing is after 25 ~ 28 minutes, is at the uniform velocity cooled to 16 DEG C and the mixture obtained after keeping 55 minutes;
The multistage straight melt-spun silk of described melt, homogeneous mixture after above-mentioned High Modulus And Low Shrinkage melt treatment is added double screw extruder, becoming through the melt extruded of double screw extruder can the polymer melt of spinning, at spinning temperature 322 ~ 335 DEG C, deliver to spinning pump accurate measurement by melt distributing pipe after filtration, be evenly distributed to the nascent strand of ejection in the composite spinneret assembly be incubated by spinning manifold accordingly by multiple isometric S shape melt pipe;
Described multiple tracks pre-network long filament and oiling treatment thereof: more above-mentioned nascent strand is carried out cooling forming through ring blowing device successively, oil nozzle oils, and then carries out drawing and heat-setting; And then successively after multiple tracks tension rollers and multiple pre-Network device, again after one tension control roll, enter the draw zone being provided with three groups of drawing-off hot-rollings again and carry out share split drawing-off, again after six groups of sizing hot-rolling share split HEAT SETTING of symmetry, plying enters master network device and carries out network processes, then carries out coiling and molding via up-coiler.
Embodiment 3:
The processing technology of the pre-network long filament of a kind of POY bicomponent filament yarn multiple tracks, it is characterized in that, the processing technology of described POY bicomponent filament yarn multiple tracks pre-network long filament comprises the sticky process of polyester raw material height, the multistage straight melt-spun silk of High Modulus And Low Shrinkage melt treatment, melt, the pre-network long filament of multiple tracks and oiling treatment thereof successively; The sticky process of described polyester raw material height: take polyester slice 75 parts, polyethyleneglycol diacrylate 3 parts, sodium carboxymethylcellulose 4 parts, 7 parts, acrylic acid, potassium phosphate 11 parts by weight respectively; Then after polyester slice being cut into particulate, by polyester slice particulate and potassium phosphate according to carrying out pre-crystallized first at the first pre-crystallized pipe after weight portion 35 parts and 5 parts of Homogeneous phase mixing, again by polyester slice particulate and potassium phosphate according to carrying out again pre-crystallized at the second pre-crystallized pipe after weight portion 40 parts and 6 parts of Homogeneous phase mixing, then the polyester mixture section after first and second is pre-crystallized is cut into particulate respectively again, then Homogeneous phase mixing, then insert in the 3rd pre-crystallized pipe that to carry out third time pre-crystallized; Wherein, first pre-crystallized carry out 75 minutes after, carry out again pre-crystallized; Temperature pre-crystallized is first 146 DEG C, total time is 110 ~ 112min, and again pre-crystallized temperature is 165 ~ 173 DEG C, the time is 35 ~ 37min, third time pre-crystallized temperature be 189 DEG C, the time is 65 ~ 70min; Then by third time pre-crystallized after section be cooled to 26 DEG C keep 65 minutes, polyethyleneglycol diacrylate, sodium carboxymethylcellulose, the acrylic acid Homogeneous phase mixing of 3 parts, 4 parts, 7 parts is respectively again with weight portion, then according to the temperature increase rate of 2 DEG C/min, be increased to 215 DEG C of maintenances and fully carry out high temperature polycondensation in 2 ~ 3 hours, the viscosity obtaining polyester mixture is 1.92 ~ 1.95dl/g;
Described High Modulus And Low Shrinkage melt treatment: be that the polyester mixture melt thing of 1.94dl/g adds successively in two rotary reactors of infrared heating and carries out melt process by the above-mentioned viscosity obtained; Wherein, by polyester fondant thing and pore eliminator according to weight ratio 65:1.7, when adding the rotary reactor of first infrared heating, temperature is 325 DEG C, then with the temperature rate of 0.03 DEG C/min, keep 65 ~ 68 minutes after being at the uniform velocity increased to 343 DEG C, the rotary speed of the rotary reactor of described infrared heating is 145 ~ 155 revs/min; Then being joined by U-shaped melt canal by the polyester mixture of described first rotary reactor of infrared heating is built-in with in second rotary reactor of infrared heating of flux, the rotary speed of described second rotary reactor of infrared heating at the uniform velocity remains on 65 ~ 75 revs/min all the time, when being at the uniform velocity increased to 245 DEG C with the temperature rate of 3 DEG C/min from 215 DEG C, keep 85 ~ 95 minutes; Wherein, described pore eliminator be trifluoroethanol, dichloroacetic acid, glacial acetic acid, zinc chloride according to weight portion 8 parts, 1 part, 3 parts, 5 parts, under temperature 45 C, Homogeneous phase mixing is after 35 ~ 39 minutes, is at the uniform velocity warming up to 135 DEG C and after keeping 65 ~ 68 minutes, is more at the uniform velocity cooled to 25 DEG C of mixtures obtained; Described flux be vinyl acetate, sodium hydrogensulfite, azodiisobutyronitrile according to weight portion 12 parts, 5 parts, 7 parts, at temperature 145 DEG C, Homogeneous phase mixing is after 25 ~ 28 minutes, is at the uniform velocity cooled to 16 DEG C and the mixture obtained after keeping 55 minutes;
The multistage straight melt-spun silk of described melt, homogeneous mixture after above-mentioned High Modulus And Low Shrinkage melt treatment is added double screw extruder, becoming through the melt extruded of double screw extruder can the polymer melt of spinning, at spinning temperature 322 ~ 335 DEG C, deliver to spinning pump accurate measurement by melt distributing pipe after filtration, be evenly distributed to the nascent strand of ejection in the composite spinneret assembly be incubated by spinning manifold accordingly by multiple isometric S shape melt pipe;
Described multiple tracks pre-network long filament and oiling treatment thereof: more above-mentioned nascent strand is carried out cooling forming through ring blowing device successively, oil nozzle oils, and then carries out drawing and heat-setting; And then successively after multiple tracks tension rollers and multiple pre-Network device, again after one tension control roll, enter the draw zone being provided with three groups of drawing-off hot-rollings again and carry out share split drawing-off, again after six groups of sizing hot-rolling share split HEAT SETTING of symmetry, plying enters master network device and carries out network processes, then carries out coiling and molding via up-coiler.
Embodiment 4:
The processing technology of the pre-network long filament of a kind of POY bicomponent filament yarn multiple tracks, it is characterized in that, the processing technology of described POY bicomponent filament yarn multiple tracks pre-network long filament comprises the sticky process of polyester raw material height, the multistage straight melt-spun silk of High Modulus And Low Shrinkage melt treatment, melt, the pre-network long filament of multiple tracks and oiling treatment thereof successively; The sticky process of described polyester raw material height: take polyester slice 75 parts, polyethyleneglycol diacrylate 3 parts, sodium carboxymethylcellulose 4 parts, 7 parts, acrylic acid, potassium phosphate 11 parts by weight respectively; Then after polyester slice being cut into particulate, by polyester slice particulate and potassium phosphate according to carrying out pre-crystallized first at the first pre-crystallized pipe after weight portion 35 parts and 5 parts of Homogeneous phase mixing, again by polyester slice particulate and potassium phosphate according to carrying out again pre-crystallized at the second pre-crystallized pipe after weight portion 40 parts and 6 parts of Homogeneous phase mixing, then the polyester mixture section after first and second is pre-crystallized is cut into particulate respectively again, then Homogeneous phase mixing, then insert in the 3rd pre-crystallized pipe that to carry out third time pre-crystallized; Wherein, first pre-crystallized carry out 75 minutes after, carry out again pre-crystallized; Temperature pre-crystallized is first 146 DEG C, total time is 110 ~ 112min, and again pre-crystallized temperature is 165 ~ 173 DEG C, the time is 35 ~ 37min, third time pre-crystallized temperature be 189 DEG C, the time is 67min; Then by third time pre-crystallized after section be cooled to 26 DEG C keep 65 minutes, polyethyleneglycol diacrylate, sodium carboxymethylcellulose, the acrylic acid Homogeneous phase mixing of 3 parts, 4 parts, 7 parts is respectively again with weight portion, then according to the temperature increase rate of 2 DEG C/min, be increased to 215 DEG C of maintenances and fully carry out high temperature polycondensation in 2 ~ 3 hours, the viscosity obtaining polyester mixture is 1.92 ~ 1.95dl/g;
Described High Modulus And Low Shrinkage melt treatment: be that the polyester mixture melt thing of 1.94dl/g adds successively in two rotary reactors of infrared heating and carries out melt process by the above-mentioned viscosity obtained; Wherein, by polyester fondant thing and pore eliminator according to weight ratio 65:1.7, when adding the rotary reactor of first infrared heating, temperature is 325 DEG C, then with the temperature rate of 0.03 DEG C/min, keep 65 ~ 68 minutes after being at the uniform velocity increased to 343 DEG C, the rotary speed of the rotary reactor of described infrared heating is 145 ~ 155 revs/min; Then being joined by U-shaped melt canal by the polyester mixture of described first rotary reactor of infrared heating is built-in with in second rotary reactor of infrared heating of flux, the rotary speed of described second rotary reactor of infrared heating at the uniform velocity remains on 65 ~ 75 revs/min all the time, when being at the uniform velocity increased to 245 DEG C with the temperature rate of 3 DEG C/min from 215 DEG C, keep 85 ~ 95 minutes; Wherein, described pore eliminator be trifluoroethanol, dichloroacetic acid, glacial acetic acid, zinc chloride according to weight portion 8 parts, 1 part, 3 parts, 5 parts, under temperature 45 C, Homogeneous phase mixing is after 35 ~ 39 minutes, is at the uniform velocity warming up to 135 DEG C and after keeping 65 ~ 68 minutes, is more at the uniform velocity cooled to 25 DEG C of mixtures obtained; Described flux be vinyl acetate, sodium hydrogensulfite, azodiisobutyronitrile according to weight portion 12 parts, 5 parts, 7 parts, at temperature 145 DEG C, Homogeneous phase mixing is after 25 ~ 28 minutes, is at the uniform velocity cooled to 16 DEG C and the mixture obtained after keeping 55 minutes;
The multistage straight melt-spun silk of described melt, homogeneous mixture after above-mentioned High Modulus And Low Shrinkage melt treatment is added double screw extruder, becoming through the melt extruded of double screw extruder can the polymer melt of spinning, at spinning temperature 327 DEG C, deliver to spinning pump accurate measurement by melt distributing pipe after filtration, be evenly distributed to the nascent strand of ejection in the composite spinneret assembly be incubated by spinning manifold accordingly by multiple isometric S shape melt pipe;
Described multiple tracks pre-network long filament and oiling treatment thereof: more above-mentioned nascent strand is carried out cooling forming through ring blowing device successively, oil nozzle oils, and then carries out drawing and heat-setting; And then successively after multiple tracks tension rollers and multiple pre-Network device, again after one tension control roll, enter the draw zone being provided with three groups of drawing-off hot-rollings again and carry out share split drawing-off, again after six groups of sizing hot-rolling share split HEAT SETTING of symmetry, plying enters master network device and carries out network processes, then carries out coiling and molding via up-coiler.
The present invention is not limited to above-mentioned specific embodiment, and do not deviating under the present invention's spirit and real situation thereof, those of ordinary skill in the art can make various corresponding change and distortion according to the present invention.These corresponding changes and distortion all should belong within the protection domain of claims of the present invention.
Claims (2)
1. the processing technology of the pre-network long filament of POY bicomponent filament yarn multiple tracks, it is characterized in that, the processing technology of described POY bicomponent filament yarn multiple tracks pre-network long filament comprises the sticky process of polyester raw material height, the multistage straight melt-spun silk of High Modulus And Low Shrinkage melt treatment, melt, the pre-network long filament of multiple tracks and oiling treatment thereof successively.
2. the processing technology of the pre-network long filament of POY bicomponent filament yarn multiple tracks according to claim 1 and 2, it is characterized in that, the sticky process of described polyester raw material height: take polyester slice 75 parts, polyethyleneglycol diacrylate 3 parts, sodium carboxymethylcellulose 4 parts, 7 parts, acrylic acid, potassium phosphate 11 parts by weight respectively; Then after polyester slice being cut into particulate, by polyester slice particulate and potassium phosphate according to carrying out pre-crystallized first at the first pre-crystallized pipe after weight portion 35 parts and 5 parts of Homogeneous phase mixing, again by polyester slice particulate and potassium phosphate according to carrying out again pre-crystallized at the second pre-crystallized pipe after weight portion 40 parts and 6 parts of Homogeneous phase mixing, then the polyester mixture section after first and second is pre-crystallized is cut into particulate respectively again, then Homogeneous phase mixing, then insert in the 3rd pre-crystallized pipe that to carry out third time pre-crystallized; Wherein, first pre-crystallized carry out 75 minutes after, carry out again pre-crystallized; Temperature pre-crystallized is first 145 ~ 147 DEG C, total time is 110 ~ 112min, and again pre-crystallized temperature is 165 ~ 173 DEG C, the time is 35 ~ 37min, third time pre-crystallized temperature be 187 ~ 192 DEG C, the time is 65 ~ 70min; Then by third time pre-crystallized after section be cooled to 26 DEG C keep 65 minutes, polyethyleneglycol diacrylate, sodium carboxymethylcellulose, the acrylic acid Homogeneous phase mixing of 3 parts, 4 parts, 7 parts is respectively again with weight portion, then according to the temperature increase rate of 2 DEG C/min, be increased to 215 DEG C of maintenances and fully carry out high temperature polycondensation in 2 ~ 3 hours, the viscosity obtaining polyester mixture is 1.92 ~ 1.95dl/g;
Described High Modulus And Low Shrinkage melt treatment: be that the polyester mixture melt thing of 1.92 ~ 1.95dl/g adds successively in two rotary reactors of infrared heating and carries out melt process by the above-mentioned viscosity obtained; Wherein, by polyester fondant thing and pore eliminator according to weight ratio 65:1.7, when adding the rotary reactor of first infrared heating, temperature is 325 DEG C, then with the temperature rate of 0.03 DEG C/min, keep 65 ~ 68 minutes after being at the uniform velocity increased to 343 DEG C, the rotary speed of the rotary reactor of described infrared heating is 145 ~ 155 revs/min; Then being joined by U-shaped melt canal by the polyester mixture of described first rotary reactor of infrared heating is built-in with in second rotary reactor of infrared heating of flux, the rotary speed of described second rotary reactor of infrared heating at the uniform velocity remains on 65 ~ 75 revs/min all the time, when being at the uniform velocity increased to 245 DEG C with the temperature rate of 3 DEG C/min from 215 DEG C, keep 85 ~ 95 minutes; Wherein, described pore eliminator be trifluoroethanol, dichloroacetic acid, glacial acetic acid, zinc chloride according to weight portion 8 parts, 1 part, 3 parts, 5 parts, under temperature 45 C, Homogeneous phase mixing is after 35 ~ 39 minutes, is at the uniform velocity warming up to 135 DEG C and after keeping 65 ~ 68 minutes, is more at the uniform velocity cooled to 25 DEG C of mixtures obtained; Described flux be vinyl acetate, sodium hydrogensulfite, azodiisobutyronitrile according to weight portion 12 parts, 5 parts, 7 parts, at temperature 145 DEG C, Homogeneous phase mixing is after 25 ~ 28 minutes, is at the uniform velocity cooled to 16 DEG C and the mixture obtained after keeping 55 minutes;
The multistage straight melt-spun silk of described melt, homogeneous mixture after above-mentioned High Modulus And Low Shrinkage melt treatment is added double screw extruder, becoming through the melt extruded of double screw extruder can the polymer melt of spinning, at spinning temperature 322 ~ 335 DEG C, deliver to spinning pump accurate measurement by melt distributing pipe after filtration, be evenly distributed to the nascent strand of ejection in the composite spinneret assembly be incubated by spinning manifold accordingly by multiple isometric S shape melt pipe;
Described multiple tracks pre-network long filament and oiling treatment thereof: more above-mentioned nascent strand is carried out cooling forming through ring blowing device successively, oil nozzle oils, and then carries out drawing and heat-setting; And then successively after multiple tracks tension rollers and multiple pre-Network device, again after one tension control roll, enter the draw zone being provided with three groups of drawing-off hot-rollings again and carry out share split drawing-off, again after six groups of sizing hot-rolling share split HEAT SETTING of symmetry, plying enters master network device and carries out network processes, then carries out coiling and molding via up-coiler.
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| CN114921863A (en) * | 2022-02-25 | 2022-08-19 | 桐昆集团浙江恒通化纤有限公司 | Production method of water-repellent oil-repellent air filtration fiber |
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| CN114921863B (en) * | 2022-02-25 | 2023-05-16 | 桐昆集团浙江恒通化纤有限公司 | Production method of water-repellent and oil-repellent air filter fiber |
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