CN112900071A - Alkali deweighting treatment process for polyester filament yarn and equipment for alkali deweighting treatment process for polyester filament yarn - Google Patents
Alkali deweighting treatment process for polyester filament yarn and equipment for alkali deweighting treatment process for polyester filament yarn Download PDFInfo
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- CN112900071A CN112900071A CN202110070738.5A CN202110070738A CN112900071A CN 112900071 A CN112900071 A CN 112900071A CN 202110070738 A CN202110070738 A CN 202110070738A CN 112900071 A CN112900071 A CN 112900071A
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- 229920000728 polyester Polymers 0.000 title claims abstract description 163
- 239000003513 alkali Substances 0.000 title claims abstract description 154
- 238000000034 method Methods 0.000 title claims abstract description 66
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 172
- 235000011121 sodium hydroxide Nutrition 0.000 claims abstract description 70
- 238000006243 chemical reaction Methods 0.000 claims abstract description 68
- 238000005507 spraying Methods 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 38
- 230000006835 compression Effects 0.000 claims description 28
- 238000007906 compression Methods 0.000 claims description 28
- 239000004902 Softening Agent Substances 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 13
- 238000004321 preservation Methods 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 11
- 208000016261 weight loss Diseases 0.000 claims description 11
- 239000013585 weight reducing agent Substances 0.000 claims description 10
- JBIROUFYLSSYDX-UHFFFAOYSA-M benzododecinium chloride Chemical group [Cl-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 JBIROUFYLSSYDX-UHFFFAOYSA-M 0.000 claims description 9
- -1 imidazoline quaternary ammonium salt Chemical class 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 8
- 229920004933 Terylene® Polymers 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 abstract description 3
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 17
- 238000010521 absorption reaction Methods 0.000 description 14
- 238000012545 processing Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 5
- 229920004934 Dacron® Polymers 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 238000010517 secondary reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic System
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
- D06M13/463—Compounds containing quaternary nitrogen atoms derived from monoamines
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
- D06M13/47—Compounds containing quaternary nitrogen atoms derived from heterocyclic compounds
- D06M13/473—Compounds containing quaternary nitrogen atoms derived from heterocyclic compounds having five-membered heterocyclic rings
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The application relates to the field of fiber surface treatment, in particular to an alkali deweighting treatment process for polyester filaments and equipment for the alkali deweighting treatment process for the polyester filaments. An alkali deweighting treatment process for polyester filaments comprises the following steps: dissolving flake caustic soda in water to prepare 10-15 g/L caustic soda solution and 15-20 g/L caustic soda solution respectively, and uniformly spraying the caustic soda solution with the concentration of 15-20 g/L on the polyester filament yarn for pretreatment; heating caustic soda solution with the concentration of 10-15 g/L to 90-110 ℃, and then placing the pretreated polyester filament yarn in the solution to perform alkali decrement reaction; and (3) drying the polyester filament yarn obtained in the step (2) at the temperature of 120-130 ℃ for 30-50 min. The equipment for the alkali decrement treatment process of the polyester filament yarn comprises a rack, wherein a spraying device for spraying alkali liquor, a reaction device for alkali decrement reaction and an oven for drying are respectively arranged on the rack. The method has the effect of improving the production efficiency of the alkali deweighting treatment process of the terylene on the premise of ensuring the tensile strength of the terylene.
Description
Technical Field
The application relates to the field of fiber surface treatment, in particular to an alkali deweighting treatment process for polyester filaments and equipment for the alkali deweighting treatment process for the polyester filaments.
Background
In the field of communications, optical cables are often placed in an open air environment, and are highly susceptible to external environmental influences, such as rain and moisture penetrating into the optical cable, causing damage to the inside of the optical cable and even causing a short circuit and causing a risk. Therefore, more and more manufacturers choose to wrap the optical cable with water-blocking yarns. The water-blocking yarn has certain water absorption and good water-blocking sealing performance, and can better isolate water from the optical cable.
The polyester filament yarn has good chemical stability of common polyester, and also has excellent physical and mechanical properties such as high strength, high modulus, low elongation, impact resistance, fatigue resistance and the like, and is often used as a raw material of water-blocking yarn. However, because the polyester filament yarn has high crystallinity, large intermolecular force, smooth and compact surface morphology and lack of polar groups, the polyester filament yarn has strong chemical inertness and limits the application of composite material products thereof. Therefore, the surface modification of the polyester industrial yarn is properly carried out, the surface form is changed, and the surface energy is improved, which is the technical key for improving the performance of the polyester industrial yarn.
In the related art, the alkali deweighting method is mostly adopted to pretreat the polyester filament, but when the alkali deweighting pretreatment is carried out on the polyester filament in the prior art, in order to shorten the treatment time of the polyester, the method of increasing the dosage of alkali liquor is mostly adopted, and the method often damages the body performance of the polyester due to improper treatment temperature or time and reduces the tensile strength of the polyester filament, so that a new production process needs to be sought to improve the tensile strength.
Disclosure of Invention
In order to improve the production efficiency of the alkali deweighting treatment process of the polyester filament yarn on the premise of ensuring the tensile strength of the polyester yarn, the application provides the alkali deweighting treatment process of the polyester filament yarn and equipment for the alkali deweighting treatment process of the polyester filament yarn.
In a first aspect, the application provides an alkali deweighting treatment process for polyester filaments, which adopts the following technical scheme:
an alkali deweighting treatment process for polyester filaments comprises the following steps,
step 1: dissolving flake caustic soda in water to prepare 10-15 g/L caustic soda solution and 15-20 g/L caustic soda solution respectively, and uniformly spraying the caustic soda solution with the concentration of 15-20 g/L on the polyester filament yarn for pretreatment;
step 2: heating caustic soda solution with the concentration of 10-15 g/L to 90-110 ℃, and then placing the pretreated polyester filament yarn in the solution to perform alkali decrement reaction;
and step 3: and (3) drying the polyester filament yarn obtained in the step (2) at 120-130 ℃ for 30-50 min, and finishing the alkali weight reduction treatment.
By adopting the technical scheme, before the polyester filament enters alkali liquor for alkali decrement reaction, the polyester filament is sprayed with high-concentration caustic soda solution for pretreatment, so that the surface layer part of the polyester filament is firstly contacted with the caustic soda, the polyester filament can be conveniently subjected to alkali decrement after entering the alkali liquor at the later stage, the method for improving the treatment efficiency by increasing the concentration of the alkali liquor or the dosage of the alkali liquor is avoided, the alkali liquor is saved, meanwhile, the concentration of the main reaction alkali liquor is controlled to be 10-15 g/L, under the concentration, the caustic soda can degrade the polyester, more tiny specks can be formed on the surface of the fiber, more hydrophilic groups are exposed, the moisture absorption of the polyester filament is improved macroscopically, when the concentration of the alkali liquor continues to rise, the degradation of the caustic soda is intensified, the peeling phenomenon of the polyester filament is easy to occur, the tensile strength of the polyester filament can be greatly reduced, and therefore, the alkali liquor is controlled to be 10-15 g/L in the application, the method is suitable, and improves the production efficiency of the alkali deweighting treatment process of the terylene on the premise of ensuring the tensile strength of the terylene.
Optionally, an accelerator is added into the caustic soda solution in the step 2, and the accelerator is dodecyl dimethyl benzyl ammonium chloride.
By adopting the technical scheme, the dodecyl dimethyl benzyl ammonium chloride is a cationic surfactant, contains a plurality of cationic groups and macromolecules with long multi-carbon chains, has the function of promoting alkali decrement reaction and also has the function of softening.
Optionally, the concentration of the accelerator dodecyl dimethyl benzyl ammonium chloride is 1-2 g/L.
By adopting the technical scheme, when the concentration of the dodecyl dimethyl benzyl ammonium chloride is 1-2 g/L, the promotion effect on the alkali decrement reaction is better, and when the concentration of the dodecyl dimethyl benzyl ammonium chloride is continuously improved, the better promotion effect is not generated, and meanwhile, the tensile property of the polyester filament yarn is easily damaged.
Optionally, a softening agent is further added into the caustic soda solution in the step 2, the softening agent is imidazoline quaternary ammonium salt or ester quaternary ammonium salt or a mixture of the imidazoline quaternary ammonium salt and the ester quaternary ammonium salt, and the mass percentage of the softening agent is 3-5%. .
By adopting the technical scheme, after the softening agent is added, the hydrophilic property and the softness of the polyester filament are further improved, the subsequent processing of the polyester filament is facilitated, and meanwhile, the synergistic effect of the softening agent, caustic soda and the accelerator in the concentration range is better.
In a second aspect, the present application provides an apparatus for an alkali deweighting treatment process of polyester filaments, which adopts the following technical scheme:
the equipment for the alkali deweighting treatment process of the polyester filaments comprises a rack, wherein a spraying device, a reaction device and an oven are respectively arranged on the rack, the spraying device comprises a liquid storage tank and a spraying nozzle, the liquid storage tank is arranged on the rack, the length direction of the liquid storage tank is parallel to the width direction of the rack, and the spraying nozzle is connected to the length direction of the liquid storage tank and faces the passing direction of the polyester filaments; the reaction device is positioned on one side of the spraying device and comprises an alkali liquor tank and a traction roller, the traction roller is parallel to the width direction of the rack, the traction roller is positioned in the alkali liquor tank and is lower than the liquid level of the alkali liquor, a plurality of heating sheets are arranged on the bottom wall of the alkali liquor tank, and the heating sheets are used for heating the alkali liquor; the oven is positioned on one side of the reaction device far away from the spraying device.
Through adopting above-mentioned technical scheme, spray set sprays the alkali lye of higher concentration to the polyester filament yarn through its below, make the dacron before getting into reaction unit, the top layer carries out partial alkali decrement pre-reaction earlier, the dacron reenters reaction unit afterwards, the heating plate in the alkali lye groove heats alkali lye to required temperature, treat to carry out secondary alkali decrement reaction after the polyester filament yarn gets into, the top layer has partially reacted the completion this moment, the treatment effeciency has been improved, at last the polyester filament yarn gets into stoving incasement and dries, alkali decrement treatment process finishes after the stoving finishes, whole process has realized through the concentration and the temperature of control alkali lye under the condition that does not influence polyester filament yarn tensile strength, the treatment effeciency has been improved.
Optionally, the drawing rolls are arranged in the lye tank in parallel, and the two drawing rolls are rotatably connected in the lye tank.
Through adopting above-mentioned technical scheme, the setting of two carry over pinch rolls has increased the reaction time of polyester filament in the lye tank, has improved alkali decrement effect.
Optionally, a yarn dividing roller is arranged on the frame, the yarn dividing roller is located on one side, away from the reaction device, of the spraying device, a plurality of yarn dividing rods which are parallel to each other are fixedly connected to the yarn dividing roller, the yarn dividing rods are uniformly distributed in the axial direction of the yarn dividing roller, and the yarn dividing rods face the frame.
By adopting the technical scheme, the yarn separating rollers enable the polyester filaments to be separated from each other, the possibility of winding the polyester filaments together is reduced, and the treatment efficiency is further improved.
Optionally, a temperature sensor is arranged in the lye tank, and the temperature sensor is electrically connected with a temperature display.
By adopting the technical scheme, the temperature of the alkali decrement reaction in the alkali liquor tank needs to be controlled within the range of 90-110 ℃, and the temperature in the alkali liquor tank is more visual due to the arrangement of the temperature sensor, so that the temperature can be timely controlled by a worker conveniently.
Optionally, the reaction unit dustcoat is equipped with the heat preservation cover, the roof and the curb plate of heat preservation cover are connected for dismantling, it has first silk mouth of advancing to open on the curb plate that the heat preservation cover is close to spray set, it has first silk mouth to cover to keep warm, first silk mouth is relative with first silk mouth of advancing, the intercommunication has the filling tube on the lateral wall of heat preservation cover.
By adopting the technical scheme, the heat-insulating cover reduces the heat exchange between the lye tank and the outside, so that the temperature of the lye in the lye tank can be maintained.
Optionally, be equipped with compression roller and lower compression roller in the cover that keeps warm, go up the compression roller and all rotate with lower compression roller machine and connect in the frame, the compression roller is located the top of lye tank down, and is located the one side that the carry over pinch rolls is close to the oven, it is located the top of compression roller down and supports tightly in the compression roller down to go up the compression roller, go up the compression roller and all be on a parallel with the width direction of frame down with the compression roller, upward be equipped with down the air cylinder on the compression roller.
Through adopting above-mentioned technical scheme, go up the compression roller under the effect of air cylinder of pushing down, will go up the compression roller and support tightly in the surface of lower compression roller to this has rolled off the unnecessary alkali lye in dacron filament surface, makes alkali lye get back to and uses in the lye tank for the secondary, has avoided dacron filament to take away alkali lye from the lye tank simultaneously, the condition of equipment is corroded after the drippage.
In summary, the present application has the following beneficial effects:
1. the method has the advantages that the alkali liquor spraying reaction mode is adopted for polyester filament yarns in advance, the reaction is firstly carried out on the polyester surface in the spraying process, and then the secondary reaction is carried out, so that the reaction time is shortened, the reaction efficiency is improved, and meanwhile, the concentration and the temperature of the caustic soda solution are controlled in a reasonable range, so that the effect of improving the processing efficiency is achieved under the condition that the tensile strength of the polyester is not influenced;
2. in the application, an accelerant is preferably adopted, so that the reaction effect is further improved;
3. the softening agent is preferably adopted in the application, so that the softness of the polyester filament yarns is improved, and the subsequent processing of the polyester filament yarns is facilitated;
4. the utility model provides an equipment carries out the preliminary spray treatment to polyester filament through setting up spray set, makes polyester filament get into reaction unit and alkali lye carries out the secondary reaction afterwards again to this has obtained the effect that improves polyester filament alkali decrement process treatment effeciency.
Drawings
Fig. 1 is a schematic structural diagram for embodying an embodiment of the present application.
FIG. 2 is a schematic view of a part of the structure of a spraying device and a reaction device for embodying the present invention.
Fig. 3 is a sectional view for embodying the internal structure of the heat-retaining cover.
Fig. 4 is a partially enlarged view for embodying a point a in fig. 1.
Fig. 5 is a sectional view for embodying the internal structure of the oven.
Description of the drawings: 1. a frame; 11. a mounting frame; 12. a side plate; 2. a spraying device; 21. a liquid storage tank; 22. a shower head; 23. a liquid receiving tank; 3. a reaction device; 31. a lye tank; 311. heating plates; 32. a traction roller; 33. a heat-preserving cover; 331. a first wire inlet; 332. a first outlet; 333. a liquid feeding pipe; 3331. a liquid feeding valve; 334. a temperature sensor; 3341. a display; 34. an upper compression roller; 341. a bearing sleeve; 342. pressing down the air cylinder; 3421. a penetration port; 3422. a bearing plate; 35. a lower pressing roller; 4. an oven; 41. a second wire inlet; 42. a second filament outlet; 43. a warm air blower; 431. a body; 432. an air outlet position; 51. a first guide roller; 52. a second guide roller; 53. a third guide roller; 54. a fourth guide roller; 55. a wire passing ring groove; 61. an inflatable shaft; 71. a dividing roller; 710. a yarn separating roller body; 711. and (5) dividing the screw rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-5 and examples.
The embodiment of the application discloses equipment for an alkali deweighting treatment process of polyester filaments. Referring to fig. 1, the equipment for the alkali decrement treatment process of the polyester filament yarn comprises a rack 1, wherein a spraying device 2, a reaction device 3 and an oven 4 are respectively arranged on the rack 1, and after the polyester filament yarn enters the equipment, partial alkali liquor is uniformly sprayed by the alkali liquor in the spraying device 2, which is a pre-reaction process of the alkali decrement reaction of the polyester filament yarn; then the polyester filament yarn after the pre-reaction enters a reaction device 3, an alkali liquor is arranged in the reaction device 3, and the polyester filament yarn enters the alkali liquor to carry out the main reaction of alkali decrement; and finally, the polyester filament yarn subjected to the alkali weight reduction reaction enters an oven 4 for drying, and the alkali weight reduction process is finished after the drying is finished, so that the next processing can be carried out.
Referring to fig. 1, a first guide roller 51 is first provided on a frame 1, and the first guide roller 51 is used for conveying and guiding a polyester filament yarn. The first guide roller 51 is rotatably connected to one end of the frame 1 in the longitudinal direction and is parallel to the width direction of the frame 1.
Referring to fig. 1, two mounting brackets 11 are oppositely arranged in the width direction of the frame 1, an air-expanding shaft 61 is rotatably connected between the two mounting brackets 11, and the air-expanding shaft 61 is located on one side of the first guide roller 51 far away from the wire feeding direction. The inflatable shaft 61 adjusts the tension of the polyester filament yarn passing through the surface of the inflatable shaft according to different states of inflation or non-inflation.
Referring to fig. 1, two side plates 12 are fixedly connected to a frame 1, the two side plates 12 are located on two sides of the frame 1 in the width direction and are symmetrical with respect to the width direction of the frame 1, and a yarn separating roller 71 is fixedly connected between the two side plates 12.
Referring to fig. 2, the yarn dividing roller 71 includes a yarn dividing roller body 710 and a plurality of yarn dividing rods 711 connected to the roller body, and the yarn dividing rods 711 are uniformly distributed along the axial direction of the yarn dividing roller body 710 and face downward. The polyester filament yarn passes through the gap between the yarn dividing rod 711 and the yarn dividing rod 711, so that the polyester filament yarn is separated by one yarn, the condition that the polyester filament yarn is wound and knotted due to light weight of the polyester filament yarn is prevented, and the process that the polyester filament yarn is separated and knotted by workers is avoided.
Referring to fig. 2, the spraying device 2 is located on one side of the yarn separating roller 71 away from the physiosis shaft 61, the spraying device 2 comprises a liquid storage tank 21 and a spraying head 22, wherein the liquid storage tank 21 is arranged above the rack 1 and is parallel to the width direction of the rack 1, the spraying head 22 is fixedly connected below the liquid storage tank 21 and is communicated with the liquid storage tank 21, and a water spraying hole of the spraying head 22 faces to the direction of the polyester filament yarn.
Referring to fig. 2, a liquid receiving tank 23 is arranged below the spray header 22, and the liquid receiving tank 23 is fixedly connected to the frame 1 and is parallel to the width of the frame 1 in the opposite direction. The liquid receiving tank 23 is used for receiving and collecting the excess alkali liquor sprayed by the spray head 22, and the excess alkali liquor is used for the second time when the amount of the alkali liquor is large, so that the cost of the alkali liquor is saved.
Referring to fig. 1 and 2, the reaction device 3 is located on one side of the spraying device 2 away from the dividing roll 71, and the reaction device 3 includes a lye tank 31 and two drawing rolls 32, wherein the lye tank 31 is used for containing lye, the lye tank 31 is fixedly connected to the frame 1, and the length direction thereof is parallel to the width direction of the frame 1. Two carry over pinch rolls 32 rotate to be connected between two inside walls of lye tank 31 length direction, and two carry over pinch rolls 32 set up in the well below of lye tank 31 relatively, all set up in parallel with the width direction of frame 1.
Referring to fig. 3, since the reaction temperature of the alkali reduction reaction needs to be controlled to 90 to 110 ℃, a plurality of heating plates 311 are fixedly connected to the bottom side wall of the alkali solution tank 31, and the heating plates 311 are used for heating the caustic soda solution in the alkali solution tank 31, so that the reaction is normally performed.
Referring to fig. 1 and 3, a heat-insulating cover 33 is arranged outside the reaction device 3, and a top plate of the heat-insulating cover 33 can be opened for arranging the inner polyester filaments. The side wall of the heat-insulating cover 33 close to the spraying device 2 is provided with a first screw inlet 331, the side wall opposite to the side wall where the first screw inlet 331 is located is provided with a first screw outlet 332, and the first screw inlet 331 and the first screw outlet 332 are opposite.
Referring to fig. 1, the outer side wall of the reservoir 21 is fixedly connected to the outer side wall of the heat-preserving cover 33, and the length direction of the reservoir 21 is parallel to the length direction of the heat-preserving cover 33.
Referring to fig. 3, a second guide roller 52 is disposed in the heat-insulating cover 33 near the first yarn inlet 331, and the second guide roller 52 is rotatably connected to the frame 1. The second guide roller 52 is used for guiding the polyester filaments entering the heat-insulating cover 33, so that the polyester filaments pass through the surfaces of the two traction rollers 32 and fully contact the alkali liquor to perform the alkali decrement reaction.
Referring to fig. 3, an upper pressing roller 34 and a lower pressing roller 35 are rotatably connected to the inside of the heat-insulating cover 33 near the first filament outlet 332, and the upper pressing roller 34 and the lower pressing roller 35 are sequentially rotatably connected to the inside wall of the heat-insulating cover 33 from top to bottom. The upper press roll 34 and the lower press roll 35 are both parallel to the width direction of the frame 1, wherein the inner shaft of the lower press roll 35 is fixedly connected between the inner side walls of the heat preservation cover 33, and the outer roll is rotatably sleeved outside the inner shaft.
Referring to fig. 4, the heat-insulating cover 33 is provided with two exit ports 3421 for two ends of the inner shaft of the upper platen roller 34 to pass through, and the two exit ports 3421 are oppositely formed on two side walls of the heat-insulating cover 33 in the length direction. Two end parts of an inner shaft of the upper press roll 34 penetrate through the penetrating port 3421, a bearing sleeve 341 is fixedly connected above each end part, a lower press cylinder 342 is arranged above the bearing sleeve 341, a bearing plate 3422 for bearing the lower press cylinder 342 is fixedly connected to the heat-insulating cover 33, the lower press cylinder 342 is fixedly connected to the bearing plate 3422, a telescopic rod of the lower press cylinder 342 is fixedly connected to the bearing sleeve 341, and the axial direction of the telescopic rod is perpendicular to the axial direction of the upper press roll 34.
Referring to fig. 1 and 3, when the polyester filament yarn subjected to the decrement reaction passes through the gap between the upper pressing roller 34 and the lower pressing roller 35, the lower pressing cylinder 342 presses the upper pressing roller 34 downwards, the upper pressing roller 34 abuts against the lower pressing roller 35, and the polyester filament yarn in the gap is subjected to a mangling effect, so that the redundant alkali liquor on the polyester filament yarn flows back to the alkali liquor tank 31, on one hand, the alkali liquor can be reused, and on the other hand, the alkali liquor brought out by the polyester filament yarn is reduced.
Referring to fig. 1 and 2, a liquid feeding pipe 333 is communicated with the inner side wall of the heat-insulating cover 33, and a liquid feeding valve 3331 is arranged on the liquid feeding pipe 333. Still be equipped with temperature sensor 334 in lye tank 31, temperature sensor 334 electricity is connected with display 3341, and display 3341 locates on frame 1, and the staff can survey the temperature in lye tank 31 through display 3341 in real time, in time adjusts the temperature of hot plate 311 when the temperature drops.
Referring to fig. 5, a third guide roller 53 is disposed on the heat-insulating cover 33, and the third guide roller 53 is rotatably connected to the heat-insulating cover 33 and parallel to the width direction of the frame 1. The third guide roller 53 is located outside the heat-insulating cover 33 and close to the first filament outlet 332.
Referring to fig. 1 and 5, the oven 4 is fixedly connected to the frame 1 and is located on a side of the third guide roller 53 away from the first filament outlet 332. The length direction of the oven 4 is parallel to the width direction of the rack 1, one side of the oven 4 close to the third guide roller 53 is provided with a second wire inlet 41, one side of the oven 4 opposite to the second wire inlet 41 is provided with a second wire outlet 42, and the second wire inlet 41 and the second wire outlet 42 are arranged oppositely and are parallel to the width direction of the rack 1.
Referring to fig. 5, a fan heater 43 is disposed on the oven 4, the fan heater 43 includes a machine body 431 and an air outlet 432, the machine body 431 is fixedly connected to the upper side of the oven 4, and the air outlet 432 is disposed on the inner top wall of the oven 4 and faces the direction in which the polyester filaments pass through.
Referring to fig. 1 and 5, a fourth guide roller 54 is disposed on the frame 1, and the fourth guide roller 54 is located outside the oven 4 and parallel to the width direction of the frame 1, and is used for guiding the polyester filaments leaving the oven 4 so as to perform the next treatment on the polyester filaments.
Referring to fig. 1 and 2, a plurality of yarn passing ring grooves 55 are formed in the first guide roller 51, the traction roller 32 and the fourth guide roller 54, the yarn passing ring grooves 55 are formed along the circumferential direction of the roller body, and are uniformly distributed along the axial direction of the roller body, so that the polyester filaments passing through the surface of the roller body are divided, and the polyester filaments are prevented from being wound and knotted in the conveying process.
The implementation principle of the equipment for the alkali deweighting treatment process of the polyester filament yarn in the embodiment of the application is as follows: after being sprayed out by a spinneret orifice, polyester filaments are firstly guided by the first guide roller 51 and upwards inflated and tensioned by the inflatable shaft 61, then the polyester filaments move to the lower part of the rear yarn dividing roller 71, are separated by the yarn dividing rod 711 and are continuously conveyed backwards, at the moment, the polyester filaments passing through the spraying device 2 and below the spraying head 22 are sprayed with alkali liquor to carry out preliminary pre-reaction on the polyester filaments and the alkali liquor, then the polyester filaments enter the first yarn inlet 331 and then enter the heat preservation cover 33, are guided by the second guide roller 52 and then are attached to the surfaces of the two traction rollers 32 downwards, and simultaneously enter a gap between the upper pressing roller 34 and the lower pressing roller 35 after being fully subjected to alkali reduction reaction with the alkali liquor in the alkali liquor tank 31, a worker adjusts the gap between the upper pressing roller 34 and the lower pressing roller 35 by means of the two lower pressing air cylinders to compress the polyester filaments 342, and after removing redundant alkali liquor from the polyester filaments, and the polyester filaments leave the heat-insulating cover 33 through the first filament outlet 332, enter the oven 4 through the guide of the third guide roller 53, are dried through the warm air in the oven 4, and finally leave the device through the fourth guide roller 54 to be processed next step, so that the alkali reduction treatment is completed.
Source of raw materials
Unless otherwise specified, the following specifications and sources of the organic raw materials are shown in Table 1 below.
TABLE 1 raw material specifications and sources
Application example
Application example 1
An alkali deweighting treatment process for polyester filaments, which is carried out in the equipment for the alkali deweighting treatment process for the polyester filaments in the embodiment, comprises the following steps,
step 1: weighing caustic soda flakes, putting the caustic soda flakes into deionized water, respectively preparing caustic soda solutions with mass concentrations of 10g/L and 15g/L, adding the 15g/L caustic soda solution into a liquid storage tank, adding 10g/L alkali liquor into an alkali liquor tank through a liquid adding pipe, and spraying the 15g/L caustic soda onto polyester filaments through a spray header when the polyester filaments pass below the spray header;
step 2: before the polyester filament yarns sprayed in the step 1 enter the lye tank, a worker firstly opens the heating plate to heat lye in the lye tank, the lye is heated to 90 ℃, then the polyester filament yarns are in contact with the lye under the traction of the traction roller and undergo alkali decrement reaction with the lye, the polyester filament yarns after the reaction leave the heat-insulating cover after passing through the mangling of the upper compression roller and the lower compression roller, and the worker observes the temperature of the lye in real time through a display in the process;
and step 3: and (3) guiding the polyester filaments out of the heat-preserving cover by a third guide roller, then feeding the polyester filaments into an oven, keeping the temperature of hot air in the oven at 120 ℃, drying the polyester filaments in the oven for 30min, and finishing alkali decrement treatment after drying.
Application examples 2 to 5
Application examples 2-5 relate to an alkali deweighting treatment process for polyester filaments, which is based on the application example 1, and the differences mainly lie in different concentrations of alkali liquor adopted in the step 1, and are specifically shown in table 2.
Table 2 application examples 2-5
| Application example | concentration/g/L of alkali liquor in spraying device | Concentration of alkali liquor in reaction device/g/L |
| Application example 2 | 18 | 10 |
| Application example 3 | 20 | 10 |
| Application example 4 | 20 | 12 |
| Application example 5 | 20 | 15 |
Application examples 6 to 12
Application examples 6-12 relate to an alkali deweighting treatment process for polyester filaments, which is based on application example 1, and the differences mainly lie in that the process conditions selected in the step 2 and the step 3 are different in the treatment process, and are specifically shown in table 3.
TABLE 3 application examples 6-12
Application examples 13 to 15
Application examples 13-15 relate to an alkali deweighting treatment process for polyester filaments, which is based on application example 10, and mainly comprises the step 2 of adding dodecyl dimethyl benzyl ammonium chloride serving as an accelerator into an alkali liquor in a reaction device, wherein the concentration of the accelerator is shown in table 4.
TABLE 4 application examples 13-15
| Application example | Concentration of accelerator/g/L |
| Application example 13 | 1 |
| Application example 14 | 1.5 |
| Application example 15 | 2 |
Application examples 16 to 21
Application examples 16-21 relate to an alkali deweighting treatment process for polyester filaments, which is based on the application example 10, and is mainly characterized in that softening agents with different types and concentrations are added into alkali liquor in a reaction device in the step 2, and the specific difference is shown in table 5.
TABLE 5 application examples 16-21
| Application example | Kind of softening agent | Mass fraction of softening agent/%) |
| Application example 16 | |
3 |
| Application example 17 | |
4 |
| Application example 18 | QL541 | 5 |
| Application example 19 | |
3 |
| Application example 20 | |
4 |
| Application example 21 | QL542 | 5 |
Comparative application example
Comparative application example 1
An alkali decrement treatment process for polyester filament yarn is based on application example 6 and mainly characterized in that the alkali decrement reaction in an alkali solution tank is directly carried out under the same process conditions without carrying out pre-reaction of a spraying device on the polyester filament yarn.
Comparative application example 2
An alkali deweighting treatment process for polyester filaments is based on application example 6, and is mainly characterized in that only the polyester filaments are sprayed with alkali liquor and then directly sent into an oven for drying.
Comparative application examples 3 to 8 all relate to an alkali deweighting treatment process for polyester filaments, and are based on the application example 6, and the differences mainly lie in different alkali liquor concentrations in a spraying device and a reaction device, which are shown in table 6.
Table 6 comparative application examples 3-8
Comparative application example 9
An alkali deweighting treatment process for polyester filaments is based on an application example 6, and is mainly characterized in that alkali liquor is heated to 50 ℃ in a step 2.
Performance test
Detection method
The performance of the polyester filament yarn obtained by alkali decrement treatment of the application example and the comparative application example is detected, and the test method comprises the following steps:
1. and (3) measuring the decrement rate: after drying the polyester filament before and after the alkali decrement, weighing, and calculating the decrement rate according to the following formula:
in the formula: m1 is the dry weight of the polyester filament before alkali weight reduction, g; m2 is the dry weight, g, of the polyester filament after alkali weight loss.
2. Measurement of liquid absorption Rate: weighing the polyester filament yarn subjected to alkali decrement, soaking the polyester filament yarn in a water-blocking solution for 20min, lightly drying the polyester filament yarn by using a filter screen, removing a large amount of water, then putting the polyester filament yarn into a centrifugal tube, centrifuging the polyester filament yarn at 1000rpm for 5min, taking out and weighing the polyester filament yarn, and calculating the liquid absorption rate according to the following formula:
in the formula: m2 weight of polyester filament before imbibition, g; m3 weight of the polyester filament yarn after imbibition, g.
3. Tensile breaking strength: GB/T14344-.
4. Tensile elongation at break: GB/T14344-.
The results are shown in Table 7.
TABLE 7 test results
Comparing application examples 1-21 and combining table 7, it can be seen that the polyester filament obtained by applying the alkali weight reduction treatment process and apparatus in the present application has a weight reduction rate of not less than 19.22%, a liquid absorption rate of not less than 8.99%, a tensile breaking strength of not less than 3.86cN/dtex, and a tensile breaking elongation of not less than 18.56%, which fully indicates that the application examples have better weight reduction rate and liquid absorption rate under the condition of higher treatment efficiency, and the tensile properties of the obtained polyester filament are close to those of the polyester filament before alkali weight reduction treatment, and the tensile properties of the polyester filament in the later application process are not greatly affected, and subsequent processing is not hindered.
Comparing application examples 1-12 and combining table 7, it can be seen that when the concentration of the alkali liquor in the spraying device is controlled to be 15-20 g/L and the concentration of the alkali liquor in the reaction device is controlled to be 10-15 g/L, the process conditions ensure that the temperature of the alkali liquor in the reaction device is kept to be 90-110 ℃, the temperature of the oven is kept to be 120-130 ℃, and the drying time is kept to be 30-50 min, the treated polyester filaments all have better liquid absorption rate, and the requirement of water blocking processing in the later period is fully met. Of these, application example 10 is the most effective, and application example 6 is the least effective.
Comparing application examples 13-15 and application example 10 with table 7, it can be seen that after the accelerator dodecyl dimethyl benzyl ammonium chloride with the concentration of 1-2 g/L is added to the alkali liquor in the reaction device, the decrement rate and the liquid absorption rate of the obtained polyester filament yarn are further improved, which indicates that the accelerator plays an effective role in promoting the alkali decrement reaction.
Comparing application examples 16-21 and application example 10 with table 7, it can be seen that when two types of softeners with the mass percentage of 3-5% are added into the alkali liquor in the reaction device, the ester-based quaternary ammonium salt softener (QL541) further improves the liquid absorption performance of the polyester filament yarn and improves the tensile strength of the polyester filament yarn; the imidazoline quaternary ammonium salt softening agent (QL542) further improves the tensile elongation at break of the polyester filament yarn, and further reduces the influence of the alkali weight reduction process on the tensile property of the polyester.
Comparing application example 1 and application example 6 with table 7, it can be seen that, in the processing process, when only the reaction in the reaction device is performed on the polyester filament yarn, but the pre-reaction of the spraying device is not performed, the decrement rate of the polyester filament yarn is only 14.02%, the liquid absorption rate is only 6.02%, and compared with application example 6 which has the worst effect in the application example, the liquid absorption rate is greatly reduced, and the requirement of subsequent water blocking processing cannot be met.
Comparing application example 2 and application example 6 with table 7, it can be seen that when only spraying alkali liquor on the polyester filament yarn and not performing the reaction in the reaction device, the decrement rate of the polyester filament yarn is only 9.01%, and the liquid absorption rate is only 4.12%, which indicates that the reaction effect is weak and the obtained polyester filament yarn can not absorb the water-blocking liquid basically by spraying the caustic soda on the polyester filament yarn and reacting with the polyester filament yarn.
Comparing application examples 3-8 and application example 6 with table 7, it can be seen that when the concentration of the alkali liquor in the spraying device is not in the range of 15-20 g/L or the concentration of the alkali liquor in the reaction device is not in the range of 10-15 g/L or both, the concentration is too low, the decrement rate of the polyester filaments is insufficient, and the subsequent processing requirements cannot be met; the concentration is too high, the tensile property of the polyester filament yarn is obviously reduced, and the requirement of subsequent processing can not be met.
Comparing application example 9 and application example 6 with table 7, it can be seen that when the temperature of the alkali liquor in the reaction device is lower than 90-110 ℃, the decrement rate is reduced, the liquid absorption rate is reduced at the same time, and the requirement of ensuring the liquid absorption rate on the premise of improving the efficiency cannot be met.
The best application example is as follows: example 16 is applied.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. An alkali deweighting treatment process for polyester filaments is characterized by comprising the following steps,
step 1: dissolving flake caustic soda in water to prepare 10-15 g/L caustic soda solution and 15-20 g/L caustic soda solution respectively, and uniformly spraying the caustic soda solution with the concentration of 15-20 g/L on the polyester filament yarn for pretreatment;
step 2: heating caustic soda solution with the concentration of 10-15 g/L to 90-110 ℃, and then placing the pretreated polyester filament yarn in the solution to perform alkali decrement reaction;
and step 3: and (3) drying the polyester filament yarn obtained in the step (2) at 120-130 ℃ for 30-50 min, and finishing the alkali weight reduction treatment.
2. The alkali deweighting treatment process for the polyester filament yarn as claimed in claim 1, wherein the alkali deweighting treatment process comprises the following steps: and (3) adding an accelerant into the caustic soda solution in the step (2), wherein the accelerant is dodecyl dimethyl benzyl ammonium chloride.
3. The alkali deweighting treatment process for the polyester filament yarn as claimed in claim 2, wherein the alkali deweighting treatment process comprises the following steps: the concentration of the accelerator dodecyl dimethyl benzyl ammonium chloride is 1-2 g/L.
4. The alkali deweighting treatment process for the polyester filament yarn as claimed in claim 2, wherein the alkali deweighting treatment process comprises the following steps: and 2, adding a softening agent into the caustic soda solution in the step 2, wherein the softening agent is imidazoline quaternary ammonium salt or ester quaternary ammonium salt or a mixture of the imidazoline quaternary ammonium salt and the ester quaternary ammonium salt, and the mass percentage of the softening agent is 3-5%.
5. An apparatus for performing the alkali deweighting process on the polyester filament yarn according to any one of claims 1 to 4, wherein the apparatus comprises a frame (1), the frame (1) is respectively provided with a spraying device (2), a reaction device (3) and an oven (4), the spraying device (2) comprises a liquid storage tank (21) and a spraying nozzle, the liquid storage tank (21) is arranged on the frame (1) and the length direction thereof is parallel to the width direction of the frame (1), and the spraying nozzle is connected in the length direction of the liquid storage tank (21) and faces to the passing direction of the polyester filament yarn; the reaction device (3) is positioned on one side of the spraying device (2), the reaction device (3) comprises an alkali liquor tank (31) and a traction roller (32), the traction roller (32) is parallel to the width direction of the rack (1), the traction roller (32) is positioned in the alkali liquor tank (31) and is lower than the liquid level of the alkali liquor, a plurality of heating sheets are arranged on the bottom wall of the alkali liquor tank (31), and the heating sheets are used for heating the alkali liquor; the drying oven (4) is positioned on one side of the reaction device (3) far away from the spraying device (2).
6. The apparatus for the alkali deweighting process of polyester filament according to claim 5, wherein: the drawing rollers (32) are arranged in the lye tank (31) in parallel, and the two drawing rollers (32) are rotatably connected in the lye tank (31).
7. The apparatus for the alkali deweighting process of polyester filament according to claim 6, wherein: be equipped with branch silk roller (71) on frame (1), divide silk roller (71) to be located spray set (2) and keep away from one side of reaction unit (3), divide fixedly connected with a plurality of branch lead screw (711) that are parallel to each other on silk roller (71), a plurality of divide lead screw (711) evenly distributed in the axial of dividing silk roller (71), divide lead screw (711) towards frame (1).
8. The apparatus for the alkali deweighting process of polyester filament according to claim 6, wherein: and a temperature sensor (334) is arranged in the lye tank (31), and the temperature sensor (334) is electrically connected with a temperature display (3341).
9. The apparatus for the alkali deweighting process of polyester filament according to claim 8, wherein: reaction unit (3) dustcoat is equipped with heat preservation cover (33), the roof and curb plate (12) that heat preservation cover (33) are for dismantling to be connected, it has first silk mouth (331) to open on curb plate (12) that heat preservation cover (33) are close to spray set (2), it has first silk mouth (332) to open on heat preservation cover (33), first silk mouth (332) are relative with first silk mouth (331) of advancing, the intercommunication has the filling tube on the lateral wall of heat preservation cover (33).
10. The apparatus for the alkali deweighting process of polyester filament according to claim 9, wherein: be equipped with in heat preservation cover (33) and go up compression roller (34) and lower compression roller (35), it all rotates with lower compression roller (35) machine and connects in frame (1) to go up compression roller (34), lower compression roller (35) are located the top of lye tank (31), and are located one side that carry over pinch rolls (32) are close to oven (4), it just supports tightly in lower compression roller (35) to go up the top that compression roller (34) are located lower compression roller (35), it all is on a parallel with the width direction of frame (1) with lower compression roller (35) to go up compression roller (34), it pushes down cylinder (342) to be equipped with on compression roller (34).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990890A (en) * | 2022-06-21 | 2022-09-02 | 吉安市三菱超细纤维有限公司 | Method for manufacturing full-aqueous superfine fiber synthetic leather |
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| CN105506879A (en) * | 2016-01-19 | 2016-04-20 | 苏州天华超净科技股份有限公司 | Two-step splitting method of polyester and polyamide composite super-fine fibers |
| CN210420470U (en) * | 2019-08-29 | 2020-04-28 | 浙江红绿蓝纺织印染有限公司 | Efficient alkali decrement device for polyester textiles |
| CN111607967A (en) * | 2020-05-29 | 2020-09-01 | 明新孟诺卡(江苏)新材料有限公司 | Alkali decrement method for island structure microfiber material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105506879A (en) * | 2016-01-19 | 2016-04-20 | 苏州天华超净科技股份有限公司 | Two-step splitting method of polyester and polyamide composite super-fine fibers |
| CN210420470U (en) * | 2019-08-29 | 2020-04-28 | 浙江红绿蓝纺织印染有限公司 | Efficient alkali decrement device for polyester textiles |
| CN111607967A (en) * | 2020-05-29 | 2020-09-01 | 明新孟诺卡(江苏)新材料有限公司 | Alkali decrement method for island structure microfiber material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114990890A (en) * | 2022-06-21 | 2022-09-02 | 吉安市三菱超细纤维有限公司 | Method for manufacturing full-aqueous superfine fiber synthetic leather |
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Application publication date: 20210604 |