CN111534918B - Local three-dimensional warp knitting mesh cloth and manufacturing method thereof - Google Patents
Local three-dimensional warp knitting mesh cloth and manufacturing method thereof Download PDFInfo
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- CN111534918B CN111534918B CN202010390277.5A CN202010390277A CN111534918B CN 111534918 B CN111534918 B CN 111534918B CN 202010390277 A CN202010390277 A CN 202010390277A CN 111534918 B CN111534918 B CN 111534918B
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- 239000004744 fabric Substances 0.000 title claims abstract description 46
- 238000009940 knitting Methods 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 55
- 239000012943 hotmelt Substances 0.000 claims abstract description 49
- 238000009998 heat setting Methods 0.000 claims abstract description 39
- 238000002844 melting Methods 0.000 claims abstract description 34
- 230000008018 melting Effects 0.000 claims abstract description 33
- 239000002131 composite material Substances 0.000 claims abstract description 8
- 239000002344 surface layer Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000007731 hot pressing Methods 0.000 claims description 47
- 239000000835 fiber Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 229920000728 polyester Polymers 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims description 10
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000699 topical effect Effects 0.000 claims 1
- 238000009954 braiding Methods 0.000 abstract 1
- 239000004753 textile Substances 0.000 description 12
- 238000012545 processing Methods 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 229920004933 Terylene® Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003446 memory effect Effects 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 229920006052 Chinlon® Polymers 0.000 description 2
- 235000015982 Lilium brownii Nutrition 0.000 description 2
- 240000008058 Lilium brownii Species 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003698 laser cutting Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/20—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting articles of particular configuration
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
-
- 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]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Of Fabric (AREA)
- Woven Fabrics (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a local three-dimensional warp knitting mesh cloth and a manufacturing method thereof, which is characterized by comprising the following steps: the mesh body is integrally woven on a warp knitting machine at least by first yarns and second yarns, the first yarns and/or the second yarns are hot melt yarns, the hot melt yarns are composite yarns of a core-shaped structure, the melting point Tm1 of a sheath polymer is higher than the melting point Tm2 of the core polymer, the mesh body comprises a hot melt area, and the hot melt area protrudes out of the surface layer of the mesh body after heat setting treatment to form a three-dimensional shape. The manufacturing method comprises a braiding step, a heat setting treatment step and a cooling treatment step. The three-dimensional modeling of the local three-dimensional warp knitted fabric is more obvious, more durable and stable, and has better dimensional stability.
Description
Technical Field
The invention relates to the field of post-processing of warp knitting fabrics, in particular to a local three-dimensional warp knitting mesh cloth and a manufacturing method thereof.
Background
At present, along with the improvement of living standard, the demands of the market on textile fabrics are more and more diversified, so that not only certain texture and comfort level are required to be met, but also different three-dimensional modeling demands of the textile fabrics are required to be met, and fashion and attractiveness are pursued. The existing textile fabric with three-dimensional modeling in the market is generally realized in a weaving process or a finishing processing process.
The method comprises the steps of forming a three-dimensional textile fabric through a weaving process, wherein the requirement on the weaving process is high, various changes among tissues are needed to be utilized, the formed three-dimensional textile fabric is uniformly distributed on the textile fabric, and local three-dimensional textile fabric is difficult to form; the three-dimensional modeling is formed by a post-finishing processing technology, a heat setting processing technology is mostly adopted, hot melt yarns are added into textile fabrics to be integrally woven, the hot melt yarns are of a core-shaped structure, when the hot pressing temperature reaches the melting point of the sheath fibers, the sheath fibers are completely melted into a viscous state to enable adjacent yarns to be mutually bonded into a whole by utilizing the characteristic that the melting point of the sheath is lower than that of the core, so that the three-dimensional modeling is formed, but the three-dimensional modeling is of a permanent memory type, and is unfavorable for carrying out multiple shaping processing on the textile fabrics at a continuous high temperature, so that various technological requirements are met. In addition, due to yarn organization factors of the warp knitting mesh, the physical properties of the surface of the warp knitting mesh are unstable, so that the existing heat setting treatment process is not easy to heat setting treatment of the warp knitting mesh, and local three-dimensional modeling is difficult to form on the warp knitting mesh through the heat setting treatment.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the local three-dimensional warp knitting mesh cloth and the manufacturing method thereof, which can meet the requirements of different three-dimensional modeling on the warp knitting mesh cloth.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a partial three-dimensional warp knit scrim comprising: the mesh body is integrally woven on a warp knitting machine at least by first yarns and second yarns, the first yarns and/or the second yarns are hot melt yarns, the hot melt yarns are composite yarns of a core-shaped structure, the melting point Tm1 of a sheath polymer is higher than the melting point Tm2 of the core polymer, the mesh body comprises a hot melt area, and the hot melt area protrudes out of the surface layer of the mesh body after heat setting treatment to form a three-dimensional shape.
The partial three-dimensional warp knitted fabric provided by the embodiment of the invention has at least the following technical effects: the hot-melt yarn is integrally woven in the mesh body, and a certain shape of three-dimensional modeling is formed on the part of the mesh body by utilizing a heat setting treatment process, so that various three-dimensional modeling hot-pressing can be carried out on the mesh body by matching with different hot-pressing dies, the diversified demands of the market are met, the melting point of the sheath polymer of the adopted hot-melt yarn is higher than that of the core polymer, when the hot-pressing temperature reaches the melting point of the core polymer, the core polymer is melted into a viscous state, part of the core polymer in the viscous state overflows to the sheath, the hot-melt yarn is bonded with adjacent yarns, the physical property of the mesh body can be effectively improved, the sheath polymer on the outer layer is not melted, the hot-melt yarn has a shape memory effect in the heat setting, the three-dimensional modeling hot-melt yarn is convenient to carry out multiple times of shaping treatment, the three-dimensional modeling three-dimensional sense is more obvious and durable and stable, and the sheath polymer with better dimensional stability is completely melted into a viscous state when the hot-melt yarn with the melting point of the core polymer lower than that of the core polymer in the prior art is subjected to the hot-press, and the hot-melt yarn with better shape memory effect is better than the shape memory state of the mesh body, and the invention is favorable to the shape memory state memory.
According to some embodiments of the invention, the sheath polymer and the core polymer are both polyester polymers, which have good abrasion resistance and are used for improving the abrasion resistance of the warp knitted fabric.
According to some embodiments of the invention, the first yarn is a hot melt yarn and the second yarn is a conventional fiber yarn.
According to some embodiments of the invention, the conventional fiber yarn is polyester or nylon or a composite yarn of polyester and nylon.
According to some embodiments of the invention, the hot melt yarn is a fully oriented polyester fiber, FOY, which has small elongation, low shrinkage, and stable size.
According to some embodiments of the invention, the melting point Tm1 of the sheath polymer and the melting point Tm2 of the core polymer satisfy the following relationship: tm < 2+10 < Tm < 1 < Tm < 2+30, and the temperature difference range between the melting point of the sheath polymer and the melting point of the core polymer is limited, so that when the heat press temperature is equal to or slightly higher than the melting point of the core polymer for heat setting treatment, the sheath polymer is near the softening point, and thermoplastic setting is facilitated.
According to some embodiments of the invention, the height H of the three-dimensional modeling protruding from the surface layer of the mesh body is in the range of: h is more than 0 and less than or equal to 3mm.
The manufacturing method of the partial three-dimensional warp knitting mesh cloth comprises the following steps:
s1, knitting, namely threading yarns on a warp knitting machine according to the tissue requirements, and integrally knitting the mesh body;
s2, performing heat setting treatment, namely installing a hot-pressing die on a seamless hot-pressing laminating machine in a aligned mode, wherein a three-dimensional model is arranged on the hot-pressing die, the mesh body woven in the step S1 is placed into the hot-pressing die, the seamless hot-pressing laminating machine is started to be preheated to a preset temperature T1, after the preset temperature T1 is reached, the seamless hot-pressing laminating machine is started to perform hot-pressing setting at a hot-pressing temperature T2, and the preset temperature T1 and the hot-pressing temperature T2 meet the following relation: tm2 is less than or equal to T1 and less than Tm1, and Tm2 is less than or equal to T2 and less than Tm1.
And S3, cooling treatment, namely cooling the mesh body after the heat setting in the step S2 to obtain a finished product.
The manufacturing method of the partial three-dimensional warp knitting mesh cloth provided by the embodiment of the invention has at least the following beneficial effects: the hot-press mold with different three-dimensional shapes can be matched for replacement to perform heat setting treatment on the warp knitting mesh cloth so as to form various specific three-dimensional shapes on the part of the warp knitting mesh cloth, thereby meeting the diversified demands of the market, and the formed local three-dimensional warp knitting mesh cloth has stable size and is not easy to stretch and deform.
According to some embodiments of the invention, after the step S1 is completed, the mesh body is cut to a certain shape by a laser machine in advance, and after the laser cutting is completed, the heat setting treatment of the step S2 is performed on the mesh body with a certain shape.
According to some embodiments of the invention, in the step S2, the hot-pressing mold is divided into an upper mold and a lower mold, the upper mold is provided with a convex three-dimensional model, the lower mold is provided with a concave three-dimensional model matched with the upper mold, and the temperatures of the upper mold and the lower mold are both the hot-pressing temperature T2.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a physical schematic of a partial three-dimensional warp knit fabric according to an embodiment of the present invention;
FIG. 2 is a yarn texture effect diagram of the mesh body of the first embodiment before heat setting treatment;
fig. 3 is a yarn texture effect chart of the mesh body of the first embodiment after the heat setting treatment.
Detailed Description
In order to further explain the technical scheme of the invention, the invention is explained in detail below with reference to specific embodiments.
Referring now to fig. 1-3, the present invention provides the following examples of the preparation of a three-dimensional "PAIHO" logo on a warp knitted footwear mesh:
as shown in fig. 1, the local three-dimensional warp knitted fabric according to the embodiment of the invention comprises a fabric body, wherein the fabric body is integrally knitted by at least a first yarn and a second yarn on a warp knitting machine, the first yarn and/or the second yarn are hot melt yarns, namely, only the hot melt yarns are added into the fabric body for integrally knitting, the fabric body comprises a hot melt area, the hot melt area protrudes out of the surface layer of the fabric body after heat setting treatment to form a three-dimensional pattern, and the fabric body can be subjected to hot setting of various local three-dimensional shapes by matching with different hot press dies so as to meet the diversified demands of markets. The hot-melt yarn in this embodiment is a composite yarn with a core-shaped structure, specifically, the polymer types of the sheath portion and the core portion of the hot-melt yarn may be the same or different, the polymer type may be determined according to the physical properties of the required mesh body, the melting point Tm1 of the sheath portion polymer of the hot-melt yarn is higher than the melting point Tm2 of the core portion polymer, when the hot-pressing temperature reaches the melting point of the core portion polymer, the core portion polymer melts into a viscous state, and part of the core portion polymer in the viscous state overflows to the sheath portion, so that the hot-melt yarn and the adjacent yarn are bonded together, the physical properties of the mesh body can be effectively improved, the sheath portion polymer of the outer layer is not melted, so that the hot-melt yarn has a shape memory effect in the heat setting, is convenient for performing multiple shaping processing, and the three-dimensional sense of the three-dimensional shape after the heat setting processing is more obvious, more durable and stable, and has better size stability. The hot-melt yarn used in this embodiment is different from the hot-melt yarn used in the heat setting treatment in the prior art, and the melting point of the sheath polymer of the hot-melt yarn used in the prior art is lower than that of the core polymer, so that when the hot-melt yarn is set at a certain hot-press temperature, the sheath is ensured to be completely melted into a viscous state so as to be mutually bonded with adjacent yarns into a whole, the sheath is completely melted into the viscous state to form a permanent memory state, and the re-shaping treatment cannot be performed.
In addition, the heat setting treatment process of the textile is to eliminate stress and strain accumulated in the textile through high-temperature treatment, so that the textile obtains a certain required form in state, size or structure and achieves a certain stability, and the technical prejudice of the technical prejudice can be overcome by the fact that the technical prejudice can be realized only by completely melting the sheath polymer of the outer layer and mutually bonding the adjacent yarns by adopting the hot-melt yarn with the sheath polymer of the outer layer, wherein the sheath melting point of the hot-melt yarn is higher than the core melting point, and the setting of the sheath and the core melting point of the hot-melt yarn subjected to heat setting treatment in the prior art is just opposite.
In order to ensure the wear-resistant physical properties of the mesh body, the sheath polymer and the core polymer can be polyester polymers, and the composite yarn of the sheath-core structure formed by the sheath and the core can be fully oriented polyester fiber FOY, so that the elongation is small, the shrinkage is low and the size is stable.
It is understood that one of the first yarn and the second yarn may be a hot melt yarn, and the other of the first yarn and the second yarn may be a conventional fiber yarn, i.e., the first yarn may be a hot melt yarn and the second yarn may be a conventional fiber yarn. Wherein, the conventional fiber yarn can be terylene or chinlon or a composite yarn of terylene and chinlon.
Further, the melting point Tm1 of the sheath polymer and the melting point Tm2 of the core polymer satisfy the following relation: tm2+10 < Tm1 < Tm2+30, the values in the relation represent temperature, and the units are degrees Celsius (DEG C). By limiting the range of the temperature difference between the melting point of the sheath polymer and the melting point of the core polymer, the sheath polymer is positioned near the softening point and is convenient for thermoplastic shaping when the heat-pressing temperature is equal to or slightly higher than the melting point of the core polymer for heat-shaping treatment.
In some embodiments of the present invention, the heat-setting treatment is performed on the heat-melting area, and the heat-setting treatment is performed on the surface layer of the mesh body to form a three-dimensional model, where the value range of the height H of the three-dimensional model protruding from the surface layer of the mesh body is: h is more than 0 and less than or equal to 3mm, and the height of the three-dimensional modeling can be realized by adjusting the protruding height of the three-dimensional pattern of the hot pressing die in the heat setting treatment process.
The manufacturing method of the partial three-dimensional warp knitting mesh cloth in the embodiment comprises the following steps:
s1, knitting, namely threading yarns on a warp knitting machine according to the tissue requirements, and integrally knitting the mesh body;
s2, performing heat setting treatment, namely installing a hot-pressing die on a seamless hot-pressing laminating machine in a aligned mode, wherein a three-dimensional model is arranged on the hot-pressing die, placing the mesh body woven in the step S1 into the hot-pressing die, starting the seamless hot-pressing laminating machine to preheat to a preset temperature T1, and starting the seamless hot-pressing laminating machine to perform hot-pressing setting at a hot-pressing temperature T2 after the seamless hot-pressing laminating machine reaches the preset temperature T1, wherein the preset temperature T1 and the hot-pressing temperature T2 meet the following relation: tm2 is less than or equal to T1 and less than Tm1, and Tm2 is less than or equal to T2 and less than Tm1.
And S3, cooling treatment, namely cooling the screen cloth body after the heat setting in the step S2 to obtain a finished product.
In some embodiments of the present invention, after the step S1 is completed, the mesh body is laser-cut to a certain shape by a laser machine in advance, and after the laser cutting is completed, the heat setting treatment of the step S2 is performed on the mesh body with a certain shape.
Further, the hot-pressing die is divided into an upper die and a lower die, the upper die is provided with a convex three-dimensional modeling, the lower die is provided with a concave three-dimensional modeling matched with the upper die for alignment, and the temperatures of the upper die and the lower die are both hot-pressing temperature T2.
It can be understood that the manufacturing method in this embodiment can be matched with changing hot-pressing dies with different three-dimensional shapes to perform heat setting treatment on the warp-knitted mesh, wherein the preset temperature T1 of the upper die and the preset temperature T2 of the lower die are the same as the hot-pressing temperature T2, and various parameter designs in the heat setting treatment can be set according to the hot-melt yarn composition of the mesh body and the fabric thickness thereof. By adopting the manufacturing method, different hot-pressing dies can be matched to form various specific three-dimensional shapes on the local part of the mesh body, so that the diversified demands of the market can be met, and the formed local three-dimensional warp knitted mesh is stable in size and not easy to stretch and deform.
Example 1
The warp knitting machine with two guide bars is adopted to knit a mesh body, the mesh body is a single-layer fabric, the first yarn penetrated by the first guide bar is 100D/48F terylene semi-photo-thermal melting yarn, a warp knitting texture is adopted, the yarn padding number is 1-0/2-3//, and the melting points of sheath polymers and core polymers of the first yarn respectively meet the following relation: tm1=130 ℃, tm2=110 ℃, the second yarn worn by the second bar is 150D/48F polyester semi-gloss, and an open knitting chain structure is adopted, and the yarn padding number is 0-1/1-0//. After the mesh body is woven, the mesh body of the shoe type is laser produced by a laser machine, and then is subjected to heat setting treatment, and the hot pressing parameters of the heat setting treatment are set as follows: the preset temperature T1 is 110 ℃, the hot pressing temperature T2 of the upper die and the lower die is 110 ℃, the hot pressing time is 30s, the hot pressing pressure is 20kg, the upper die is a convex PAI HO logo pattern, and the lower die is a concave PAI HO logo pattern. It should be understood that when the mesh body is not subjected to high-temperature heat setting treatment, as in the common yarn structure, the yarn structure effect diagram is shown in fig. 2, when the mesh body is subjected to high-temperature heat setting treatment, the hot melt yarns are partially melted and are mutually bonded with adjacent yarns, the yarn structure effect diagram is shown in fig. 3, and when the mesh body is cooled to normal temperature after heat setting treatment, the yarns are hard and hard to stretch, so that the dimensional stability and the wear resistance of the fabric are improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (10)
1. Local three-dimensional warp knitting screen cloth, its characterized in that includes: the mesh body is integrally woven on a warp knitting machine by at least a first yarn and a second yarn, the first yarn and/or the second yarn are hot-melt yarns, the hot-melt yarns are composite yarns with a core-like structure, the melting point Tm1 of a sheath polymer of each hot-melt yarn is higher than the melting point Tm2 of a core polymer of each hot-melt yarn, the mesh body comprises a hot-melt area, the hot-melt area protrudes out of the surface layer of the mesh body after heat setting treatment to form a three-dimensional shape, the hot-melt area is subjected to heat setting at a heat pressing temperature T2 so that the core polymer is melted into a viscous state, part of the core polymer in a viscous state overflows to the sheath polymer, the hot-melt yarns are bonded with adjacent yarns, and the heat pressing temperature T2 meets the following relational expression: tm2 is less than or equal to T2 and less than Tm1.
2. A topical three-dimensional warp screen cloth according to claim 1, wherein the sheath portion polymer and the core portion polymer are both polyester-based polymers.
3. A partial three-dimensional warp knit fabric according to claim 1 wherein said first yarns are hot melt yarns and said second yarns are conventional fiber yarns.
4. A partial three-dimensional warp knit fabric according to claim 3, wherein said conventional fiber yarns are polyester or nylon or a composite yarn of polyester and nylon.
5. The partial three-dimensional warp knit fabric of claim 2 wherein said hot melt yarns are fully oriented polyester fiber FOY.
6. The partial three-dimensional warp knit fabric according to claim 1, wherein said melting point Tm1 of said sheath polymer and said melting point Tm2 of said core polymer satisfy the following relationship: tm2+10 < Tm1 < Tm2+30.
7. The partial three-dimensional warp knitted fabric according to claim 1, wherein the height H of the three-dimensional modeling protruding from the surface layer of the fabric body is in the range of: h is more than 0 and less than or equal to 3mm.
8. A method of manufacturing a partial three-dimensional warp knit fabric according to any one of claims 1 to 7, comprising the steps of:
s1, knitting, namely threading yarns on a warp knitting machine according to the tissue requirements, and integrally knitting the mesh body;
s2, performing heat setting treatment, namely installing a hot-pressing die on a seamless hot-pressing laminating machine in a aligned mode, wherein a three-dimensional model is arranged on the hot-pressing die, the mesh body woven in the step S1 is placed into the hot-pressing die, the seamless hot-pressing laminating machine is started to be preheated to a preset temperature T1, after the preset temperature T1 is reached, the seamless hot-pressing laminating machine is started to perform hot-pressing setting at a hot-pressing temperature T2, and the preset temperature T1 and the hot-pressing temperature T2 meet the following relation: tm2 is less than or equal to T1 and less than Tm1, and Tm2 is less than or equal to T2 and less than Tm1;
and S3, cooling treatment, namely cooling the mesh body after the heat setting in the step S2 to obtain a finished product.
9. The method according to claim 8, wherein after the step S1 is completed, the mesh body is laser-cut to a certain shape by a laser machine in advance, and after the laser-cut is completed, the mesh body of a certain shape is heat-set by the step S2.
10. The method according to claim 8, wherein in the step S2, the hot-pressing mold is divided into an upper mold and a lower mold, the upper mold is provided with a convex three-dimensional shape, the lower mold is provided with a concave three-dimensional shape for matching alignment of the upper mold, and the temperatures of the upper mold and the lower mold are both the hot-pressing temperature T2.
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| CN202010390277.5A CN111534918B (en) | 2020-05-08 | 2020-05-08 | Local three-dimensional warp knitting mesh cloth and manufacturing method thereof |
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| CN202010390277.5A CN111534918B (en) | 2020-05-08 | 2020-05-08 | Local three-dimensional warp knitting mesh cloth and manufacturing method thereof |
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| CN111534918B true CN111534918B (en) | 2024-02-13 |
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| JP2019011546A (en) * | 2018-08-02 | 2019-01-24 | 株式会社Shindo | Warp knitted interlining cloth |
| CN212560643U (en) * | 2020-05-08 | 2021-02-19 | 东莞百宏实业有限公司 | Local three-dimensional warp knitting net cloth |
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