CN111534872B - Preparation method of novel composite wool-like fiber - Google Patents
Preparation method of novel composite wool-like fiber Download PDFInfo
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- CN111534872B CN111534872B CN202010364620.9A CN202010364620A CN111534872B CN 111534872 B CN111534872 B CN 111534872B CN 202010364620 A CN202010364620 A CN 202010364620A CN 111534872 B CN111534872 B CN 111534872B
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- 239000000835 fiber Substances 0.000 title claims abstract description 54
- 239000002131 composite material Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 43
- 238000004804 winding Methods 0.000 claims abstract description 20
- 238000010036 direct spinning Methods 0.000 claims abstract description 18
- 239000000155 melt Substances 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 15
- 238000013329 compounding Methods 0.000 claims abstract description 3
- 238000007493 shaping process Methods 0.000 claims abstract description 3
- 238000009835 boiling Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 13
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 13
- 238000009987 spinning Methods 0.000 claims description 13
- 230000006855 networking Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 abstract description 5
- 210000002268 wool Anatomy 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006750 UV protection Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 59
- 230000001105 regulatory effect Effects 0.000 description 15
- 230000000149 penetrating effect Effects 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/028—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by twisting or false-twisting at least two filaments, yarns or threads, fixing the twist and separating the filaments, yarns or threads
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0286—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist characterised by the use of certain filaments, fibres or yarns
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/04—Devices for imparting false twist
- D02G1/08—Rollers or other friction causing elements
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a preparation method of novel composite wool-like fiber, which comprises the following steps: (a) preparing full-dull porous fine denier POY by a melt direct spinning method; (b) preparing full-dull special-shaped FDY by adopting a melt direct spinning method; (c) on a texturing machine, directly converging the full-dull porous fine denier POY and the full-dull special-shaped FDY at a position of a second roller, compounding by a network device, shaping by a second hot box, then sending into a winding device for winding after passing through a third roller to obtain the composite wool-like fiber, wherein the mass ratio of the full-dull porous fine denier POY to the full-dull special-shaped FDY in the composite wool-like fiber is 0.3-0.8. The wool-like composite fiber prepared by the method has good overall wool-like effect, simple process and low cost, is suitable for subsequent twisting and napping, and the prepared fabric has the performances of wool feeling, fluffiness and softness, and also has the ultraviolet resistance function and wide market prospect.
Description
Technical Field
The invention relates to the technical field of fiber preparation, in particular to a preparation method of a novel composite wool-like fiber.
Background
At present, polyester wool-like products on the market are endless, but the wool-like fibers prepared by the existing method have generally higher cost and poor fluffy effect, and the soft touch of the fabrics has a certain difference with wool fabrics. In addition, in the production process of the raw material yarn of the composite wool-like fiber, spinning oiling is an indispensable key link for fiber preparation, static electricity in spinning can be avoided through an oiling process, good bundling property, smoothness and antistatic property are given to fiber tows, the generation of broken filaments and broken ends is reduced, and the spinning performance and the post-processing performance of the fiber can be improved. The traditional spinning oiling is carried out by adopting an oil roller type and an oil nozzle type. The oiling of the oiling roller is to continuously oil the fiber tows by utilizing the rotation of the oiling roller, and because the oiling roller rotates fast, oil in the oil tank is easily thrown out of the oil tank by the oiling roller, so that on one hand, the pollution to equipment is caused, and on the other hand, the waste of the oil agent is caused; in actual operation, the oil mass that the glib talker oiled is difficult to control, and when the oil mass that oils was great, can have more oil pollution, when the oil mass that oils is less, can produce the problem of broken filament again.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a preparation method of a novel composite wool-like fiber, the wool-like composite fiber prepared by the method has good overall wool-like effect, simple process and low cost, is suitable for subsequent twisting and napping, and the prepared fabric has wool feel, fluffiness and softness, also has an ultraviolet resistance function and has wide market prospect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of novel composite wool-like fiber comprises the following steps:
(a) preparing full-dull porous fine denier POY by a melt direct spinning method, wherein the filament number is 0.8-1.5 dpf, and the boiling water shrinkage rate is 50% -70%;
(b) preparing a full-dull special-shaped FDY by a melt direct spinning method, wherein the filament number is 1-3 dpf, and the boiling water shrinkage rate is 15-25%; in the process of preparing the full-dull special-shaped FDY, a spinneret plate with a discharge hole with a caterpillar section is adopted for spinning to obtain a nascent FDY filament bundle, and the nascent FDY filament bundle is subjected to side-blown cooling, oiling, stretching, networking and winding forming to prepare the full-dull special-shaped FDY; the cooling wind speed of the cross air blow is 0.8m/s, the speed of the first drawing roller is 2835m/min, the temperature is 90 ℃, the speed of the second drawing roller is 4510m/min, and the temperature is 102 ℃;
(c) on a texturing machine, directly converging the full-dull porous fine denier POY and the full-dull special-shaped FDY at a position of a second roller, compounding by a network device, shaping by a second hot box, then sending into a winding device for winding after passing through a third roller to obtain the composite wool-like fiber, wherein the mass ratio of the full-dull porous fine denier POY to the full-dull special-shaped FDY in the composite wool-like fiber is 0.3-0.8.
The mass content of the nano titanium dioxide in the full-dull porous fine denier POY and the full-dull special-shaped FDY is 2.0-2.5%.
Each discharge hole of the spinneret plate comprises five side-by-side waist-shaped holes and linear holes communicated with the five waist-shaped holes, and each waist-shaped hole is symmetrically and vertically arranged with the linear hole.
In the step (c), the speed of the second roller of the elasticizer is 300-500 m/min, the overfeeding of the second roller to the third roller is 20% -50%, the pressure of the composite network is 0.5-1.5 kg, and the temperature of the second hot box is 180-230 ℃.
The production of the novel composite wool-like fiber has the following difficulties: firstly, the preparation of the full-dull special-shaped FDY must embody the full fluffiness, the loose connection of monofilaments and the zigzag wave of the monofilaments; reasonably controlling the boiling water shrinkage of POY and FDY in the composite fiber; ③ proportion of POY to FDY; and fourthly, overfeeding rate of the two rollers to the three rollers in the elasticizing process and the like, so that the product can reach the required style in the later use process. Therefore, the invention utilizes the difference of the thermal shrinkage performance of the full-dull porous fine denier POY and the full-dull special-shaped FDY to shrink the POY in the core layer of the composite fiber by the adjustment of the preparation process and the improved design of the spinneret plate, the full-dull special-shaped FDY forms a fluffy and soft Z-shaped wave floating on the surface layer of the composite fiber, thereby preparing the novel composite wool-like fiber, and the fabric prepared by the fiber after twisting, napping and other treatments has the advantages of wool feeling, fluffy and soft, and ultraviolet resistance compared with real wool products and other wool-like products.
The nascent FDY filament bundle is oiled through an oiling system, the oiling system comprises a support, an oiling mechanism and a regulating mechanism which is arranged on the support and used for regulating the oil output, the oiling mechanism comprises an oiling plate arranged at the front end of the lower part of the support, a plurality of truncated cone-shaped wire penetrating holes with large upper parts and small lower parts are arranged on the front side of the oiling plate, oiling channels which are communicated with the wire penetrating holes in a one-to-one correspondence mode are arranged in the rear side of the oiling plate, each oiling channel comprises a regulating hole with large upper parts and small lower parts and an oil spraying channel which is communicated with the upper parts of the regulating holes and the upper parts of the wire penetrating holes, the support comprises a partition plate, the regulating mechanism comprises a connecting plate, a plurality of push rods which are connected to the lower surface of the connecting plate, regulating pieces which are connected to the lower ends of the push rods, limiting plates which are respectively arranged on two sides of the partition plate in a sliding mode, and a driving structure which drives the limiting plates to move, the lower ends of the push rods stretch into the regulating holes and the regulating pieces are arranged in the regulating holes, the limiting plate includes a plurality of step portions, and is a plurality of the step portion highly be outside-in and reduce the setting in proper order, the connecting plate moves down to the step portion of one of them height of butt and then adjusts the clearance size of regulating part outer wall and regulation hole inner wall through a pair of cylinder drive.
The driving structure comprises a motor, a screw rod connected to the power output end of the motor and a connecting block screwed on the screw rod, and the connecting block is fixedly connected with the limiting plate.
The baffle is respectively equipped with a pair of slide rail along its length direction's both sides, two the limiting plate corresponds slidable mounting on a pair of slide rail and limiting plate along a pair of slide rail round trip movement.
The oiling channel further comprises an oil inlet channel communicated with the bottom of the adjusting hole, the surface of the lower portion of the wire penetrating hole is sunken to form a circular oil return groove, and the oiling plate is provided with an oil return channel communicated with the oil return groove.
The invention has the beneficial effects that:
(1) the full-dull special-shaped FDY is prepared by adjusting process parameters and matching spinneret plates, can embody the effects of fluffiness, elasticity and softness, and can completely replace PBT, PTT, composite yarns and the like in other wool-like products.
(2) The preparation method provided by the invention can greatly reduce the manufacturing cost of the composite wool-like fiber, and is mainly embodied in that: the production cost of the full-extinction special-shaped FDY is lower than that of the conventional FDY; secondly, in the texturing process, the filament bundle only passes through the two hot boxes, so that the texturing cost can be greatly reduced.
(3) Through the wire feed hole of one-to-one and the setting of oil feeding channel for the fibre oils evenly, has improved the efficiency of oiling, and can make except that spout the finish outside the part of silk bundle can be along wire feed hole pore wall down and through oil return channel backward flow to the oil tank that flows backward (each oil return channel all is connected with the oil tank that flows backward through the pipeline), has reduced the waste of finish, also can avoid the pollution of finish to other equipment.
(4) Through the cooperation setting of regulating part and regulation hole to the distance that moves down of connecting plate is fixed a position to the limiting plate that utilizes a plurality of step portions, and then the clearance size between regulating part outer wall and the regulation hole inner wall is adjusted to accessible cylinder, realizes the automatic regulation of finish oil output.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of a portion of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a schematic side view of a structural relationship of a feed-through hole and an oil gallery in accordance with the present invention;
fig. 5 is a cross-sectional view of the discharge opening of the spinneret plate of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description below:
example 1
A preparation method of novel composite wool-like fiber comprises the following steps:
(a) preparing full-dull porous fine denier POY by a melt direct spinning method, wherein the filament number is 1dpf, and the boiling water shrinkage rate is 60%;
(b) preparing full-dull special-shaped FDY by a melt direct spinning method, wherein the filament number is 2.8dpf, and the boiling water shrinkage rate is 25%; in the process of preparing the full-dull special-shaped FDY, a spinneret plate with a discharge hole with a caterpillar section is adopted for spinning to obtain a nascent FDY filament bundle, and the nascent FDY filament bundle is subjected to side-blown cooling, oiling, stretching, networking and winding forming to prepare the full-dull special-shaped FDY; the cooling wind speed of the cross air blow is 0.8m/s, the speed of the first drawing roller is 2835m/min, the temperature is 90 ℃, the speed of the second drawing roller is 4510m/min, and the temperature is 102 ℃;
(c) on a texturing machine, the full-dull porous fine denier POY and the full-dull special-shaped FDY are directly converged at a position of a second roller, compounded through a network device, shaped through a second hot box, sent into a winding device through a third roller and wound to obtain the composite wool-like fiber, wherein the mass ratio of the full-dull porous fine denier POY to the full-dull special-shaped FDY in the composite wool-like fiber is 0.5.
The mass content of the nano titanium dioxide in the full-dull porous fine denier POY and the full-dull special-shaped FDY is 2 percent.
As shown in fig. 5, each discharge hole of the spinneret plate comprises five side-by-side slotted holes 8 and a linear hole 81 communicating with the five slotted holes 8, and each slotted hole 8 is symmetrically and vertically arranged with respect to the linear hole 81.
In the step (c), the speed of the second roller of the elasticizer is 500m/min, the overfeed of the second roller to the third roller is 50%, the network pressure is 0.6kg, and the temperature of the second hot box is 205 ℃.
The nascent FDY filament bundle is oiled through an oiling system, as shown in figures 1-4, the oiling system comprises a support 1, an oiling mechanism and a regulating mechanism 5 which is arranged on the support 1 and used for regulating the oil output, the oiling mechanism comprises an upper oiling plate 2 arranged at the front end of the lower part of the support 1, a plurality of circular truncated cone-shaped wire penetrating holes 3 with large top and small bottom are arranged at the front side of the upper oiling plate 2, an oiling channel 4 communicated with the wire penetrating holes 3 in a one-to-one correspondence manner is arranged in the rear side of the upper oiling plate 2, the oiling channel 4 comprises an adjusting hole 42 with circular truncated cone-shaped top and small bottom, an oil spraying channel 43 communicated with the upper part of the adjusting hole 42 and the upper part of the wire penetrating hole 3, the oiling mechanism further comprises an oil supply box 8 and an oil return box 81, the oiling channel 4 further comprises an oil inlet channel 41 communicated with the bottom of the adjusting hole 42, the surface of the lower part of the wire penetrating hole 3 is sunken to form a circular annular oil return groove 31, an oil return channel 32 communicated with the oil return groove 31 is arranged on the upper oiling plate 2, the oiling system further comprises an oil supply tank and an oil return tank (not shown in the figure), each oil inlet channel 41 is connected with the oil supply tank through a pipeline, each oil return channel 32 is connected with the oil return tank through a pipeline, and when the oil in the oil return tank is stored to a set capacity, the oil is conveyed to the oil supply tank to be reused. When the filament bundle passes through the filament passing hole 3 after coming out of the spinning channel, the oil agent is sprayed to the filament bundle through the oil spraying channel 43, due to the structural design of the filament passing hole 3, the sprayed redundant oil agent can slide down to the oil return tank 31 along the hole wall of the filament passing hole 3 and flows back to the oil return box 81 through the oil return channel 32 for storage, and after a certain amount of oil agent is stored in the oil return box 81, the oil agent is reused.
The support 1 comprises a partition 11, the regulating mechanism 5 comprises a connecting plate 52, a plurality of push rods 53 connected to the lower surface of the connecting plate 52, an adjusting piece 54 connected to the lower end of each push rod 53, limit plates 6 respectively arranged on two sides of the partition 11 in a sliding manner, and a driving structure 7 for driving the limit plates 6 to move, the lower end of the push rod 53 extends into the adjusting hole 42, the adjusting piece 54 is arranged in the adjusting hole 42, the upper oil plate 2 further comprises a sealing plate 44 for sealing and covering the adjusting hole 42, the push rod 53 penetrates through the sealing plate 44, the sealing plate 44 is sealed with the push rod 53 and the part of the upper oil plate 2 located on the periphery of the port of the adjusting hole 42 through the sealing ring 44, the limiting plate 6 comprises a plurality of step parts 61, the height of the step parts 61 is gradually reduced from outside to inside, the connecting plate 52 is driven by the pair of air cylinders 51 to move downwards to abut against the step part 61 at one height so as to adjust the gap between the outer wall of the adjusting piece 54 and the inner wall of the adjusting hole 42. According to the invention, the step parts 61 limit the downward movement of the connecting plate 52, the height difference between two adjacent step parts 61 is less than or equal to 3mm, when the oil output amount needs to be adjusted, two limiting plates 6 are driven to move inwards respectively, then the air cylinder 51 drives the connecting plate 52 and the adjusting piece 54 to move downwards, the connecting plate 52 is abutted against the step parts 61 and cannot move downwards continuously, the oil flows out from the gap between the outer wall of the adjusting piece 54 and the inner wall of the adjusting hole 42, and the oil output amount is adjusted by adjusting the gap between the outer wall of the adjusting piece 54 and the inner wall of the adjusting hole 42 through the abutment of the connecting plate 52 and the step parts 61.
The driving structure 7 comprises a motor 71, a screw rod 72 connected to the power output end of the motor 71 and a connecting block 73 screwed on the screw rod 72, and the connecting block 73 is fixedly connected with the limiting plate 6.
The partition 11 is respectively provided with a pair of slide rails 12 along both sides of the length direction thereof, and two of the limiting plates 6 are correspondingly slidably mounted on the pair of slide rails 12 and the limiting plates 6 move back and forth along the pair of slide rails 12. The limiting plate 6 is further provided with an opening 62, the parts of the limiting plate 6 positioned on the front side and the rear side of the opening 62 are connected with the slide rail 12, and when the limiting plate 6 moves inwards, the push rod 53 can pass through, so that the push rod 53 is prevented from blocking the limiting plate 6.
Example 2
A preparation method of novel composite wool-like fiber comprises the following steps:
(a) preparing full-dull porous fine denier POY by a melt direct spinning method, wherein the filament number is 0.8dpf, and the boiling water shrinkage rate is 55%;
(b) preparing full-dull special-shaped FDY by a melt direct spinning method, wherein the filament number is 1dpf, and the boiling water shrinkage rate is 20%;
(c) on a texturing machine, the full-dull porous fine denier POY and the full-dull special-shaped FDY are directly converged at a position of a second roller, compounded through a network device, shaped through a second hot box, sent into a winding device through a third roller and wound to obtain the composite wool-like fiber, wherein the mass ratio of the full-dull porous fine denier POY to the full-dull special-shaped FDY in the composite wool-like fiber is 0.3.
The mass content of the nano titanium dioxide in the full-dull porous fine denier POY is 2 percent, and the mass content of the nano titanium dioxide in the full-dull special-shaped FDY is 2.3 percent.
In the process of preparing the full-dull special-shaped FDY, a spinneret plate with a discharge hole with a caterpillar section is adopted for spinning to obtain a nascent FDY filament bundle, and the nascent FDY filament bundle is subjected to side-blown cooling, oiling, stretching, networking and winding forming to prepare the full-dull special-shaped FDY; the cooling wind speed of the cross air blow is 0.8m/s, the speed of the first drafting roller is 2835m/min, the temperature is 90 ℃, the speed of the second drafting roller is 4510m/min, and the temperature is 102 ℃.
Each discharge hole of the spinneret plate comprises five side-by-side waist-shaped holes 8 and linear holes 81 communicated with the five waist-shaped holes 8, and each waist-shaped hole 8 is symmetrically and vertically arranged with the linear hole 81.
In the step (c), the speed of the second roller of the elasticizer is 400m/min, the overfeeding of the second roller to the third roller is 20%, the network pressure is 0.5kg, and the temperature of the second hot box is 190 ℃.
Oiling the nascent FDY tow obtained in step (b) using the oiling system of example 1.
Example 3
A preparation method of novel composite wool-like fiber comprises the following steps:
(a) preparing full-dull porous fine denier POY by a melt direct spinning method, wherein the filament number is 1dpf, and the boiling water shrinkage rate is 50%;
(b) preparing full-dull special-shaped FDY by a melt direct spinning method, wherein the filament number is 2.5dpf, and the boiling water shrinkage rate is 25%;
(c) on a texturing machine, the full-dull porous fine denier POY and the full-dull special-shaped FDY are directly converged at a position of a second roller, compounded through a network device, shaped through a second hot box, sent into a winding device through a third roller and wound to obtain the composite wool-like fiber, wherein the mass ratio of the full-dull porous fine denier POY to the full-dull special-shaped FDY in the composite wool-like fiber is 0.5.
The mass content of the nano titanium dioxide in the full-dull porous fine denier POY is 2.5 percent, and the mass content of the nano titanium dioxide in the full-dull special-shaped FDY is 2 percent.
In the process of preparing the full-dull special-shaped FDY, a spinneret plate with a discharge hole with a caterpillar section is adopted for spinning to obtain a nascent FDY filament bundle, and the nascent FDY filament bundle is subjected to side-blown cooling, oiling, stretching, networking and winding forming to prepare the full-dull special-shaped FDY; the cooling wind speed of the cross air blow is 0.8m/s, the speed of the first drafting roller is 2835m/min, the temperature is 90 ℃, the speed of the second drafting roller is 4510m/min, and the temperature is 102 ℃.
Each discharge hole of the spinneret plate comprises five side-by-side waist-shaped holes 8 and linear holes 81 communicated with the five waist-shaped holes 8, and each waist-shaped hole 8 is symmetrically and vertically arranged with the linear hole 81.
In the step (c), the speed of the second roller of the elasticizer is 500m/min, the overfeed of the second roller to the third roller is 45 percent, the network pressure is 0.7kg, and the temperature of the second hot box is 180 ℃.
Oiling the nascent FDY tow obtained in step (b) using the oiling system of example 1.
Example 4
A preparation method of novel composite wool-like fiber comprises the following steps:
(a) preparing full-dull porous fine denier POY by a melt direct spinning method, wherein the filament number is 1dpf, and the boiling water shrinkage rate is 63%;
(b) preparing full-dull special-shaped FDY by a melt direct spinning method, wherein the filament number is 3dpf, and the boiling water shrinkage rate is 15%;
(c) on a texturing machine, the full-dull porous fine denier POY and the full-dull special-shaped FDY are directly converged at a position of a second roller, compounded through a network device, shaped through a second hot box, sent into a winding device through a third roller and wound to obtain the composite wool-like fiber, wherein the mass ratio of the full-dull porous fine denier POY to the full-dull special-shaped FDY in the composite wool-like fiber is 0.5.
The mass content of the nano titanium dioxide in the full-dull porous fine denier POY is 2 percent, and the mass content of the nano titanium dioxide in the full-dull special-shaped FDY is 2.5 percent.
In the process of preparing the full-dull special-shaped FDY, a spinneret plate with a discharge hole with a caterpillar section is adopted for spinning to obtain a nascent FDY filament bundle, and the nascent FDY filament bundle is subjected to side-blown cooling, oiling, stretching, networking and winding forming to prepare the full-dull special-shaped FDY; the cooling wind speed of the cross air blow is 0.8m/s, the speed of the first drafting roller is 2835m/min, the temperature is 90 ℃, the speed of the second drafting roller is 4510m/min, and the temperature is 102 ℃.
Each discharge hole of the spinneret plate comprises five side-by-side waist-shaped holes 8 and linear holes 81 communicated with the five waist-shaped holes 8, and each waist-shaped hole 8 is symmetrically and vertically arranged with the linear hole 81.
In the step (c), the speed of the second roller of the elasticizer is 300m/min, the overfeed of the second roller to the third roller is 48%, the network pressure is 1kg, and the temperature of the second hot box is 210 ℃.
Oiling the nascent FDY tow obtained in step (b) using the oiling system of example 1.
Example 5
A preparation method of novel composite wool-like fiber comprises the following steps:
(a) preparing full-dull porous fine denier POY by a melt direct spinning method, wherein the filament number is 1.5dpf, and the boiling water shrinkage rate is 65%;
(b) preparing full-dull special-shaped FDY by a melt direct spinning method, wherein the filament number is 3dpf, and the boiling water shrinkage rate is 20%;
(c) on a texturing machine, the full-dull porous fine denier POY and the full-dull special-shaped FDY are directly converged at a position of a second roller, compounded through a network device, shaped through a second hot box, sent into a winding device through a third roller and wound to obtain the composite wool-like fiber, wherein the mass ratio of the full-dull porous fine denier POY to the full-dull special-shaped FDY in the composite wool-like fiber is 0.8.
The mass content of the nano titanium dioxide in the full-dull porous fine denier POY is 2 percent, and the mass content of the nano titanium dioxide in the full-dull special-shaped FDY is 2.1 percent.
In the process of preparing the full-dull special-shaped FDY, a spinneret plate with a discharge hole with a caterpillar section is adopted for spinning to obtain a nascent FDY filament bundle, and the nascent FDY filament bundle is subjected to side-blown cooling, oiling, stretching, networking and winding forming to prepare the full-dull special-shaped FDY; the cooling wind speed of the cross air blow is 0.8m/s, the speed of the first drafting roller is 2835m/min, the temperature is 90 ℃, the speed of the second drafting roller is 4510m/min, and the temperature is 102 ℃.
Each discharge hole of the spinneret plate comprises five side-by-side waist-shaped holes 8 and linear holes 81 communicated with the five waist-shaped holes 8, and each waist-shaped hole 8 is symmetrically and vertically arranged with the linear hole 81.
In the step (c), the speed of the second roller of the elasticizer is 480m/min, the overfeed of the second roller to the third roller is 40%, the network pressure is 0.65kg, and the temperature of the second hot box is 207 ℃.
Oiling the nascent FDY tow obtained in step (b) using the oiling system of example 1.
Example 6
A preparation method of novel composite wool-like fiber comprises the following steps:
(a) preparing full-dull porous fine denier POY by a melt direct spinning method, wherein the filament number is 1dpf, and the boiling water shrinkage rate is 70%;
(b) preparing full-dull special-shaped FDY by a melt direct spinning method, wherein the filament number is 2.3dpf, and the boiling water shrinkage rate is 23%;
(c) on a texturing machine, the full-dull porous fine denier POY and the full-dull special-shaped FDY are directly converged at a position of a second roller, compounded through a network device, shaped through a second hot box, sent into a winding device through a third roller and wound to obtain the composite wool-like fiber, wherein the mass ratio of the full-dull porous fine denier POY to the full-dull special-shaped FDY in the composite wool-like fiber is 0.5.
The mass content of the nano titanium dioxide in the full-dull porous fine denier POY is 2.5 percent, and the mass content of the nano titanium dioxide in the full-dull special-shaped FDY is 2.5 percent.
In the process of preparing the full-dull special-shaped FDY, a spinneret plate with a discharge hole with a caterpillar section is adopted for spinning to obtain a nascent FDY filament bundle, and the nascent FDY filament bundle is subjected to side-blown cooling, oiling, stretching, networking and winding forming to prepare the full-dull special-shaped FDY; the cooling wind speed of the cross air blow is 0.8m/s, the speed of the first drafting roller is 2835m/min, the temperature is 90 ℃, the speed of the second drafting roller is 4510m/min, and the temperature is 102 ℃.
Each discharge hole of the spinneret plate comprises five side-by-side waist-shaped holes 8 and linear holes 81 communicated with the five waist-shaped holes 8, and each waist-shaped hole 8 is symmetrically and vertically arranged with the linear hole 81.
In the step (c), the speed of the second roller of the elasticizer is 460m/min, the overfeed of the second roller to the third roller is 50%, the network pressure is 1.5kg, and the temperature of the second hot box is 230 ℃.
Oiling the nascent FDY tow obtained in step (b) using the oiling system of example 1.
The performance indexes of the products of the embodiments 1-6 of the invention are as follows:
the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A preparation method of novel composite wool-like fiber is characterized by comprising the following steps: the method comprises the following steps:
(a) preparing full-dull porous fine denier POY by a melt direct spinning method, wherein the filament number is 0.8-1.5 dpf, and the boiling water shrinkage rate is 50% -70%;
(b) preparing a full-dull special-shaped FDY by a melt direct spinning method, wherein the filament number is 1-3 dpf, and the boiling water shrinkage rate is 15-25%; in the process of preparing the full-dull special-shaped FDY, a spinneret plate with a discharge hole with a caterpillar section is adopted for spinning to obtain a nascent FDY filament bundle, and the nascent FDY filament bundle is subjected to side-blown cooling, oiling, stretching, networking and winding forming to prepare the full-dull special-shaped FDY; the cooling wind speed of the cross air blow is 0.8m/s, the speed of the first drawing roller is 2835m/min, the temperature is 90 ℃, the speed of the second drawing roller is 4510m/min, and the temperature is 102 ℃;
the nascent FDY tow is oiled through the oiling system, the oiling system includes support (1), the mechanism of oiling and installs regulation and control mechanism (5) that are used for adjusting oil output on support (1), the mechanism of oiling is including setting up last oiled plate (2) at support (1) lower part front end, it is equipped with a plurality of wire passing holes (3) that are big-end-up's round platform shape to go up oiled plate (2) front side, be equipped with in last oiled plate (2) rear side and wear oil duct (4) that wire passing holes (3) one-to-one communicate, oil duct (4) spout oil duct (43) including adjusting hole (42), intercommunication adjusting hole (42) upper portion and wire passing hole (3) upper portion that are big-end-up's round platform shape, support (1) include baffle (11), regulation and control mechanism (5) include connecting plate (52), connect a plurality of push rods (53) at connecting plate (52) lower surface, The adjusting part (54) connected to the lower end of each push rod (53), the limiting plates (6) arranged on two sides of the partition plate (11) in a sliding mode respectively, and the driving structure (7) for driving the limiting plates (6) to move are connected, the lower end of each push rod (53) stretches into the adjusting hole (42), the adjusting parts (54) are arranged in the adjusting holes (42), each limiting plate (6) comprises a plurality of step parts (61), the heights of the step parts (61) are sequentially reduced from outside to inside, and the connecting plate (52) is driven by a pair of air cylinders (51) to move downwards to abut against the step part (61) with one height, so that the size of a gap between the outer wall of each adjusting part (54) and the inner wall of each adjusting hole (42) is adjusted;
(c) on a texturing machine, directly converging the full-dull porous fine denier POY and the full-dull special-shaped FDY at a position of a second roller, compounding by a network device, shaping by a second hot box, then sending into a winding device for winding after passing through a third roller to obtain the composite wool-like fiber, wherein the mass ratio of the full-dull porous fine denier POY to the full-dull special-shaped FDY in the composite wool-like fiber is 0.3-0.8.
2. The method for preparing the novel composite wool-like fiber according to claim 1, characterized in that: the mass content of the nano titanium dioxide in the full-dull porous fine denier POY and the full-dull special-shaped FDY is 2.0-2.5%.
3. The method for preparing the novel composite wool-like fiber according to claim 1, characterized in that: every discharge opening of spinneret includes five waist shape hole (8) side by side and communicates straight line hole (81) in five waist shape hole (8), every waist shape hole (8) all set up with straight line hole (81) symmetry is perpendicular.
4. The method for preparing the novel composite wool-like fiber according to claim 1, characterized in that: in the step (c), the speed of the second roller of the elasticizer is 300-500 m/min, the overfeeding of the second roller to the third roller is 20% -50%, the pressure of the composite network is 0.5-1.5 kg, and the temperature of the second hot box is 180-230 ℃.
5. The method for preparing the novel composite wool-like fiber according to claim 1, characterized in that: the driving structure (7) comprises a motor (71), a screw rod (72) connected to the power output end of the motor (71) and a connecting block (73) connected to the screw rod (72) in a threaded mode, and the connecting block (73) is fixedly connected with the limiting plate (6).
6. The method for preparing the novel composite wool-like fiber according to claim 1, characterized in that: baffle (11) respectively are equipped with a pair of slide rail (12) along its length direction's both sides, two limiting plate (6) correspond slidable mounting on a pair of slide rail (12) and limiting plate (6) along a pair of slide rail (12) round trip movement.
7. The method for preparing the novel composite wool-like fiber according to claim 1, characterized in that: oil feed passageway (41) with regulation hole (42) bottom intercommunication is still included in last oil passageway (4), wire feed hole (3) lower part surface is sunken to form ring form oil gallery (31), be equipped with on last oiled-plate (2) oil return passageway (32) with oil gallery (31) intercommunication.
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| CN115305610B (en) * | 2022-07-19 | 2024-01-09 | 苏州萧然新材料有限公司 | Monofilament cooling device for preparing moisture-absorbing sweat-releasing elastic yarn and cooling method thereof |
| CN115747987A (en) * | 2022-12-24 | 2023-03-07 | 浙江联颖科技有限公司 | A preparation process of full-dull special-shaped and different-shrinkage polyester FDY |
| CN118241326B (en) * | 2024-04-02 | 2024-10-29 | 浙江佳宝聚酯有限公司 | High-wool-like and low-wool-like mixed spinning process of polyester wool-like fibers |
| CN118461167B (en) * | 2024-07-09 | 2024-09-03 | 桐昆集团浙江恒通化纤有限公司 | Manufacturing method of full-dull trichina mink-like velvet fiber |
| CN118461164B (en) * | 2024-07-09 | 2024-09-03 | 桐昆集团浙江恒通化纤有限公司 | Preparation method of trichina polyester drawn yarn with good dyeing property |
| CN119061502B (en) * | 2024-11-04 | 2025-04-18 | 江苏恒力化纤股份有限公司 | Oil nozzle capable of automatically adjusting width of oil outlet area |
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Denomination of invention: Preparation method of a new type of composite wool like fiber Granted publication date: 20210810 Pledgee: Zhejiang Shaoxing Hengxin Rural Commercial Bank Co.,Ltd. Doumen Sub branch Pledgor: ZHEJIANG JIABAO POLYESTER Co.,Ltd. Registration number: Y2024980034078 |
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