CN114150412A - Preparation method of spandex composite covered yarn - Google Patents
Preparation method of spandex composite covered yarn Download PDFInfo
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- CN114150412A CN114150412A CN202111244812.7A CN202111244812A CN114150412A CN 114150412 A CN114150412 A CN 114150412A CN 202111244812 A CN202111244812 A CN 202111244812A CN 114150412 A CN114150412 A CN 114150412A
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- 229920002334 Spandex Polymers 0.000 title claims abstract description 69
- 239000004759 spandex Substances 0.000 title claims abstract description 69
- 239000002131 composite material Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000002844 melting Methods 0.000 claims abstract description 49
- 229920000728 polyester Polymers 0.000 claims abstract description 29
- 238000009987 spinning Methods 0.000 claims abstract description 18
- 230000008018 melting Effects 0.000 claims abstract description 17
- 229920002292 Nylon 6 Polymers 0.000 claims abstract description 13
- 229920000742 Cotton Polymers 0.000 claims abstract description 5
- 229920006052 Chinlon® Polymers 0.000 claims description 25
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 20
- 229920004933 Terylene® Polymers 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 abstract description 7
- 239000004677 Nylon Substances 0.000 abstract description 3
- 229920001778 nylon Polymers 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000007602 hot air drying Methods 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
Images
Classifications
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- 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
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
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- 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
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
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- 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
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
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- 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
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
- D02G3/402—Yarns in which fibres are united by adhesives; Impregnated yarns or threads the adhesive being one component of the yarn, i.e. thermoplastic yarn
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/062—Load-responsive characteristics stiff, shape retention
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/063—Load-responsive characteristics high strength
Abstract
The invention discloses a preparation method of spandex composite covered yarn, which comprises spinning of S1 low-melting-point polyester FDY, spinning of S2 low-melting-point polyamide 6, pre-synchronization of S3 and spinning of S4 spandex composite covered yarn; pre-combining the low-melting-point cotton fiber 6 multifilament and the low-melting-point polyester FDY by adopting a network nozzle, wherein the network degree is 40-50 per meter; the prepared mixed filament yarn is spirally coated on the outer side of the spandex filament yarn, and is subjected to grid connection through a network nozzle, and hot air with the temperature of 90-150 ℃ is sprayed out of the network nozzle. The nylon 6 with the low melting point and the polyester FDY are adopted, so that the soft hand feeling of the nylon and the high strength of the polyester can be considered, the nylon, the polyester and the spandex filament can be bonded to form a connection point through the network nozzle, and the spandex and the covered yarn are not separated on the basis of ensuring the elasticity of the spandex composite covered yarn. Therefore, the prepared fabric has unique hand feeling and style.
Description
Technical Field
The invention relates to the technical field of preparation of covered yarns, in particular to a preparation method of spandex composite covered yarns.
Background
In modern clothes, the modern clothes have entered an era of winning success by materials, and the added value of the clothes can be greatly improved by adopting the novel superfine nylon fabric. The development of the scientific and technological fiber is concerned, the characteristics of the scientific and technological fiber are grasped, the scientific and technological novelty and the high-grade of the fabric are realized, and the fabric becomes a breakthrough of textile products in the field of clothing. Compared with the common chinlon, the superfine chinlon has the advantages of softness, soft luster, extremely strong fabric covering power, good physiological effect of clothes and the like. The continuous pursuit of new quality, new style and new functions in the field of fiber for clothes is one of the leading products of 'new synthetic fiber for clothes' of superfine chinlon. The terylene has the advantages of high strength, high modulus, wear resistance, stable size, stable chemical performance and the like, and is widely applied to various fields of clothing, decoration, industry and the like. However, the terylene has a linear macromolecular structure and lacks hydrophilic groups, so that the hydrophilicity, dyeing property and flexibility of the terylene are poor. The existing combined filament yarn can be prepared by combining nylon 6 and polyester POY through a network nozzle, and the strength of polyester and the hand feeling of nylon 6 can be considered, so that the fabric prepared from the combined filament yarn has unique hand feeling and style, and can be widely used for high-grade textiles such as imitated silk and the like.
However, the above-mentioned combined filament yarn has a large disadvantage in elasticity, and the conventional spandex covered yarn has elasticity, and the combination of the covered yarn and the core yarn is not tight enough, so that the covered yarn and the core yarn are separated during the use process.
How to prepare a yarn having elasticity and capable of giving both strength and soft touch, and also making a covering yarn in which the covering yarn is not separated from the core yarn, a need has arisen.
Disclosure of Invention
The invention aims to provide a preparation method of spandex composite covered yarn, which adopts chinlon 6 and terylene FDY with low melting points, can give consideration to the soft hand feeling of chinlon and the high strength of terylene, and can bond chinlon, terylene and spandex filaments to form connecting points through a network nozzle, thereby ensuring that the spandex and the covered yarn are not separated on the basis of ensuring the elasticity of the spandex composite covered yarn.
In order to solve the technical problem, the invention aims to realize that:
the invention relates to a preparation method of spandex composite covered yarn, which comprises the following steps:
s1, spinning of low-melting point polyester FDY: spinning 50-100D/24-36F of low-melting point terylene FDY by using low-melting point terylene slices with a melting range of 110-180 ℃;
s2, spinning of low-melting-point polyamide 6: preparing low-melting-point chinlon 6 multifilament with the melting range of 85-180 ℃ and 35-60D/48-96F;
s3, pre-merging: pre-combining the low-melting-point cotton fiber 6 multifilament and the low-melting-point polyester FDY by adopting a network nozzle to prepare mixed filament yarn, wherein the network degree is 40-50 per meter;
s4, spinning of spandex composite covered yarns: spirally coating the prepared combined filament yarn on the outer side of a spandex filament yarn, and carrying out grid connection through a network nozzle to prepare spandex composite coated yarn; the overfeed rate of the spandex filament is 30-40%; in the step, hot air with the temperature of 90-150 ℃ is sprayed from a network nozzle, and the low-melting point polyamide-6 composite and low-melting point polyester FDY surface is heated and bonded with spandex;
s5, winding: and winding the spandex composite covered yarn, wherein the tension in the winding process is 0.2-0.22 cN/D.
On the basis of the above scheme and as a preferable scheme of the scheme: the spandex filament used in step S4 is a low-melting spandex with a melting range of 90-120 ℃.
On the basis of the above scheme and as a preferable scheme of the scheme: the nozzle comprises an air inlet, a fiber mixing fiber channel and an air outlet; the mixed fiber yarn channel is communicated with the air inlet and the air outlet; the combined filament yarn channel is composed of a first curve side and a second curve side.
On the basis of the above scheme and as a preferable scheme of the scheme: the first curve side and the second curve side are both parabolic.
On the basis of the above scheme and as a preferable scheme of the scheme: the focuses of the first curve edge and the second curve edge are located at the same position, and yarns pass through the focuses when grid connection is carried out.
The invention has the beneficial effects that: according to the preparation method of the spandex composite covered yarn, the chinlon 6 with the low melting point and the terylene FDY are adopted, so that the soft hand feeling of the chinlon and the high strength of the terylene can be considered, and the chinlon, the terylene and the spandex filament can be bonded to form a connection point through the network nozzle, so that the spandex and the covered yarn are not separated on the basis of ensuring the elasticity of the spandex composite covered yarn. Therefore, the prepared fabric has unique hand feeling and style.
Drawings
FIG. 1 is a schematic structural view of a spandex covered yarn prepared in the present invention;
fig. 2 is a schematic diagram of the structure of a network nozzle used in the present invention.
The designations in the figures illustrate the following: 10-a point of attachment; 11-spandex filament; 12-commingled filaments; 13-an air inlet; 14-combined filament yarn channels; 15-air outlet; 16-a first curvilinear edge; 17-second curved edge.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Example one
This embodiment will be described in detail with reference to fig. 1 and 2. The preparation method of the spandex composite covered yarn related by the embodiment comprises the following steps:
s1, spinning of low-melting point polyester FDY: the low-melting point terylene FDY with the melting range of 110-180 ℃ is adopted to spin 50D/24F low-melting point terylene slices. The specific low-melting point polyester chip begins to melt at 110 ℃. When the low-melting point polyester FDY is spun, hot air drying is carried out in a hot air device, so that the water content of the low-melting point polyester PET chip is less than or equal to 20 multiplied by 10-6Fluctuation value ≦ 5 × 10-6. The water content and uniformity of the slices are very important for the production of the superfine denier fibers. The low and even moisture content can greatly reduce the thermal cracking and oxidative cracking of the slices during melting, and ensure the smooth production.
The effect of the moisture content of the low-melting polyester chips on the flying yarn breakage of the low-melting polyester fibers is shown in the following table. The statistical time was 24 hours of production time.
| Slice Water content/10-6 | 20 | 25 | 35 | 45 |
| Broken end condition of PET floating filament | Is free of | Is free of | 3 times of | 10 times of |
S2, spinning of low-melting-point polyamide 6: preparing the low-melting-point chinlon 6 multifilament with the melting range of 85-180 ℃ and 35D/48F. The low-melting polyamide-6 used starts to melt at 85 ℃. When the low-melting-point chinlon 6 is spun, the low-melting-point chinlon 6 slices need to be subjected to hot air drying in a hot air drying device, so that the water content of the low-melting-point chinlon 6 slices is less than or equal to 20 x 10-6Fluctuation value ≦ 5 × 10-6。
The influence of the moisture content of the low-melting-point chinlon 6 chips on the condition of the broken ends of the floating yarns of the low-melting-point chinlon 6 superfine fibers is shown in the following table. The statistical time was 24 hours of production time.
| Slice Water content/10-6 | 15 | 20 | 25 | 35 |
| Broken ends of chinlon floating filaments | Is free of | Is free of | 5 times (twice) | 20 times (twice) |
The subsequent cooling and oiling of the low-melting point polyester and the low-melting point chinlon 6 are similar to those of the conventional polyester and the conventional chinlon 6, and special attention is not needed.
S3, pre-merging: pre-combining the low-melting-point cotton fiber 6 multifilament and the low-melting-point polyester FDY by adopting a network nozzle to prepare the mixed filament yarn 12, wherein the network pressure is 1.4 kg, and the network degree is 40 per meter. A conventional network nozzle may be used in this step, and a network nozzle similar to that used in step S4 may also be used.
S4, spinning of spandex composite covered yarns: spirally coating the prepared combined filament yarn 12 on the outer side of a spandex filament yarn 11, and carrying out grid connection through a network nozzle to prepare spandex composite coated yarn; the overfeed rate of the spandex filament is 30 percent; in the step, hot air with the temperature of 90 ℃ is sprayed from a network nozzle, and the low-melting point polyamide-6 composite and low-melting point polyester FDY surface is heated and bonded with spandex. The sprayed hot air acts on the surface of the fiber within a short time, only the surface of the fiber is affected, the spandex filament can be bonded with the low-melting-point terylene and the low-melting-point chinlon, and the influence of breakage and the like on the whole filament can be avoided. The overall influence of hot air on the spandex covered yarn can be controlled through the running speed of the spandex composite covered yarn and the working time of the network nozzle.
Further, the nozzle used in this step includes an air inlet 13, a combined filament yarn channel 14, and an air outlet 15; the combined filament yarn channel 14 is communicated with the air inlet 13 and the air outlet 15; the combined filament channel 14 is composed of a first curved side 16 and a second curved side 17.
Further, the first curved side 16 and the second curved side 17 are both parabolic, and the specific shape is equal to y ═ x2The same shape as (2) may be used, or the curve shape of the conversion function may be used.
Further, the focal points of the first curved side 16 and the second curved side 17 are located at the same position, and the yarn passes through the focal points when the grid connection is performed.
The first curved edge 16 and the second curved edge 17 have parabolic shapes, the first curved edge 16 can enable airflows in all directions to converge towards the focal position of the parabola, and during production, the spandex composite covered yarn is located at the focal position of the parabola, so that more airflows are reflected and then act on the spandex composite covered yarn for the second time, and the spandex composite covered yarn is reinforced more firmly. The second curved edge 17 can reflect the high-temperature airflow reflected by the first curved edge 16 again, and can act on the spandex composite covered yarn for multiple times.
S5, winding: the spandex composite covered yarn is wound, and the tension during winding is 0.2 cN/D.
Example two
The preparation method of the spandex composite covered yarn related by the embodiment comprises the following steps:
s1, spinning of low-melting point polyester FDY: spinning 100D/36F low-melting point terylene FDY by using low-melting point terylene chips with the melting range of 110-180 ℃. The low melting point polyester used starts to melt at around 130 ℃.
S2, spinning of low-melting-point polyamide 6: preparing the low-melting-point chinlon 6 multifilament with the melting range of 85-180 ℃ and 60D/96F. The used low-melting point chinlon 6 starts to melt at about 150 ℃.
S3, pre-merging: the low-melting-point cotton fiber 6 multifilament and the low-melting-point polyester FDY are pre-combined by a network nozzle to prepare the mixed filament yarn 12, the network pressure is 1.4 kg, and the network degree is 50 per meter.
S4, spinning of spandex composite covered yarns: spirally coating the prepared combined filament yarn 12 on the outer side of a spandex filament yarn 11, and carrying out grid connection through a network nozzle to prepare spandex composite coated yarn; the overfeed rate of the spandex filament is 30-40%; in the step, hot air with the temperature of 150 ℃ is sprayed from the network nozzle, and the low-melting point polyamide-6 composite and low-melting point polyester FDY surface is heated and bonded with spandex. The spandex filament 12 used in step S4 is a low-melting spandex having a melting range of 90 to 120 ℃.
S5, winding: the spandex composite covered yarn was wound up at a tension of 0.22 cN/D.
Comparative example
Compared with the first embodiment, the preparation method of the spandex composite covered yarn in the comparative example is different from the first embodiment in that the conventional polyester and the conventional chinlon are used, namely the melting of the used polyester and chinlon are higher than those of the first embodiment.
The first, second and comparative examples were subjected to a separate tension test of spandex and combined yarn, i.e., the spandex and combined yarn were held and moved in two directions, respectively, and the tension values tested in the first and second examples were 2.5N and 2.1N, while the tension value tested in the comparative example was 0.6N. It can be seen that the spandex and the combined filament yarn are not easily separated in the spandex composite covered yarn prepared in the first and second examples.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. A preparation method of spandex composite covered yarn is characterized by comprising the following steps:
s1, spinning of low-melting point polyester FDY: spinning 50-100D/24-36F of low-melting point terylene FDY by using low-melting point terylene slices with a melting range of 110-180 ℃;
s2, spinning of low-melting-point polyamide 6: preparing low-melting-point chinlon 6 multifilament with the melting range of 85-180 ℃ and 35-60D/48-96F;
s3, pre-merging: pre-combining the low-melting-point cotton fiber 6 multifilament and the low-melting-point polyester FDY by adopting a network nozzle to prepare a mixed filament yarn (12), wherein the network degree is 40-50 per meter;
s4, spinning of spandex composite covered yarns: spirally coating the prepared combined filament yarn (12) on the outer side of a spandex filament yarn (11), and carrying out grid connection through a network nozzle to prepare spandex composite coated yarn; the overfeed rate of the spandex filament is 30-40%; in the step, hot air with the temperature of 90-150 ℃ is sprayed from a network nozzle, and the low-melting point polyamide-6 composite and low-melting point polyester FDY surface is heated and bonded with spandex;
s5, winding: and winding the spandex composite covered yarn, wherein the tension in the winding process is 0.2-0.22 cN/D.
2. The method of claim 1, wherein the spandex filament (11) used in step S4 is a low-melting spandex having a melting range of 90 to 120 ℃.
3. The method for preparing a spandex composite covered yarn according to claim 1, wherein the nozzle includes an air inlet (13), a combined filament yarn channel (14) and an air outlet (15); the combined filament yarn channel (14) is communicated with the air inlet (13) and the air outlet (15); the combined filament channel (14) is composed of a first curved side (16) and a second curved side (17).
4. The method for preparing a spandex composite covered yarn according to claim 3, wherein the first curved side (16) and the second curved side (17) are both parabolic.
5. The method for preparing a spandex composite covered yarn according to claim 4, wherein the focuses of the first curved side (16) and the second curved side (17) are located at the same position, and the yarn passes through the focuses when the grid connection is performed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117488467A (en) * | 2023-12-25 | 2024-02-02 | 南通天梭纺织有限公司 | Crease-resistant core-spun yarn and fabric woven by crease-resistant core-spun yarn |
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| US20180002839A1 (en) * | 2014-12-24 | 2018-01-04 | Invista North America S.A R.L. | Easily settable stretch fabrics including low-melt fiber |
| CN109322043A (en) * | 2018-10-26 | 2019-02-12 | 沈玉芳 | A kind of production technology of the super imitative cotton face fabric of elastic flame |
| CN110552096A (en) * | 2019-09-06 | 2019-12-10 | 浙江大地蓝化纤有限公司 | One-step production process of high-strength high-shrinkage combined filament yarn |
| CN110760963A (en) * | 2019-09-25 | 2020-02-07 | 武汉纺织大学 | Method for changing fabric structure |
| CN110846758A (en) * | 2019-11-06 | 2020-02-28 | 四川润厚特种纤维有限公司 | Preparation process of AB covered yarn |
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| CN117488467A (en) * | 2023-12-25 | 2024-02-02 | 南通天梭纺织有限公司 | Crease-resistant core-spun yarn and fabric woven by crease-resistant core-spun yarn |
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