CN115369543B - Three-dimensional balloon tubular woven fabric and preparation method thereof - Google Patents
Three-dimensional balloon tubular woven fabric and preparation method thereof Download PDFInfo
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- CN115369543B CN115369543B CN202211097922.XA CN202211097922A CN115369543B CN 115369543 B CN115369543 B CN 115369543B CN 202211097922 A CN202211097922 A CN 202211097922A CN 115369543 B CN115369543 B CN 115369543B
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- 239000002759 woven fabric Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 109
- 238000009941 weaving Methods 0.000 claims abstract description 80
- 239000004744 fabric Substances 0.000 claims abstract description 39
- 238000000034 method Methods 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 13
- 238000013459 approach Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 4
- 239000004566 building material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229920006052 Chinlon® Polymers 0.000 claims description 2
- 229920004933 Terylene® Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 244000273256 Phragmites communis Species 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000002473 artificial blood Substances 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D3/00—Woven fabrics characterised by their shape
- D03D3/02—Tubular fabrics
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D25/00—Woven fabrics not otherwise provided for
- D03D25/005—Three-dimensional woven fabrics
-
- 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
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
- D10B2321/0211—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene high-strength or high-molecular-weight polyethylene, e.g. ultra-high molecular weight polyethylene [UHMWPE]
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
- Looms (AREA)
Abstract
The invention relates to a three-dimensional balloon tubular woven fabric and a preparation method thereof, wherein the weaving port position and the number of trapezoidal reed reeds are changed simultaneously, the reed specification and the number of reed reeds are designed according to the width difference value (folding diameter ratio) of the fabric, the width of the conical tubular woven fabric can be increased or decreased, and the prepared balloon tubular woven fabric has the characteristics of large folding diameter ratio, adjustable shape and stable size, and the existing problems are well solved.
Description
Technical Field
The invention belongs to the field of fabrics, and particularly relates to a three-dimensional balloon tubular woven fabric and a preparation method thereof.
Background
The tubular woven fabric is a three-dimensional woven fabric formed by connecting two sides of a surface layer and an inner layer on the basis of double-layer fabric weaving. The composite material has wide application field, can be used as a structural prefabricated member by being compounded with a resin matrix, is applied to the fields of automobile manufacture, building materials, aerospace and the like, can be used for preparing different three-dimensional structures by changing materials and processes, and is applied to biomedical fields such as artificial blood vessels, stents and the like. With the development of weaving technology, the shape of the fabric is not limited to a uniform circular tube, and conical tubes with variable tube diameters begin to appear. However, the existing conical tubular woven fabric generally has the problems of small taper angle and folding diameter ratio, uncontrollable taper change and limited shape, and cannot realize the processing of balloon tubular woven fabric with severe size change and spindle shape.
The balloon type tubular woven fabric is a reducer tubular woven fabric with two thin ends and thick middle, the diameter ratio of the size end of the reducer tubular woven fabric can reach 8 times or more, and the current reducer weaving technology is mainly two kinds: the warp yarn increasing and decreasing method cannot ensure the continuity of the fabric edge and the trapezoidal reed method cannot meet the wide-scale change.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a three-dimensional balloon tubular woven fabric and a preparation method thereof.
The invention relates to a preparation method of a three-dimensional balloon tubular woven fabric, which comprises the following steps:
(1) Selecting proper fibers as warp yarns and weft yarns of the balloon tubular woven fabric respectively;
(2) Designing the size and parameters of the tube blank fabric according to the balloon type tubular woven fabric model;
selecting a trapezoid reed;
designing weaving parameters according to the size of the tube blank fabric;
(3) Weaving from the left end (the left thin end) of the tube blank according to the number A of the initial warp reeds, wherein the weaving port starts from the narrow side of the trapezoid reed, and gradually approaches the wide side of the trapezoid reed along with the weaving process, so that the folding diameter of the fabric is gradually increased;
(4) After the weaving port reaches the wide edge of the trapezoid reed, the warp yarns are drawn out from the trapezoid reed at the front part of the loom according to the number B of left cone reed entries i Wherein i= … … m; the loom is reversely wore, the loom fell is regulated to the narrow side of the trapezoid reed, weaving is started, and the folding diameter of the fabric is further gradually increased along with the gradual approach of the loom fell to the wide side of the trapezoid reed; determining the number of times m (m is a positive integer) of reed entering number change of the left cone section according to the change of the taper degree of the left end, repeating the step until the folding diameter of the fabric reaches the requirement of the middle section of the tube blank, and finishing the weaving of the left cone section;
(5) The position of the weaving port is unchanged, other basic parameters are kept unchanged, and straight sections in the tube blank are woven;
(6) After finishing the straight section in the tube blank, starting the weaving of the weaving port gradually approaching to the narrow edge of the trapezoid reed, and gradually reducing the folding diameter of the fabric along with the weaving;
(7) After the weaving port reaches the narrow edge, the warp yarn is drawn out from the trapezoid reed at the front part of the loom according to the number C of the right cone reed j Wherein j= … … n; the loom is reversely wore, the loom fell is regulated to the wide side of the trapezoid reed, weaving is started, and the folding diameter of the fabric is further gradually reduced along with the gradual approach of the loom fell to the narrow side of the trapezoid reed; and determining the number of times n (n is a positive integer) of change of the reed number of the right cone section according to the change of the taper degree of the right end, and repeating the step until the diameter of the fabric reaches the requirement of the right side end (right thin end), and finishing the weaving of the right cone section of the tube blank.
The preferred mode of the preparation method is as follows:
the fibers in the step (1) are one or more of chemical fibers and natural fibers; the chemical fiber is one or more of terylene, chinlon and silk.
The weaving parameters in the step (2) are weaving length, folding diameter ratio, warp and weft yarn density, trapezoid reed specification, number of reed in of warp and number of reed in changing times.
The ratio of the folding diameter of the tubular fabric=the folding diameter of the large end: the diameter of the small end is 10:1-2:1.
The folding diameter is the upper machine width D=pi D/2, wherein D is the diameter of the tubular woven fabric.
The warp yarn density changes along with the change of the folding diameters of the two ends and the middle straight section of the balloon-type tubular woven fabric.
The length ratio of the wide edge to the narrow edge of the trapezoid reed is 4:1-2:1, and the ratio of the maximum reed density of the wide edge to the minimum reed density of the narrow edge is 4:1-2:1.
The number of the reed-in number is the warp density divided by the broadside or narrow-side reed density, and the number of the reed-in number is changed to be not less than 1.
The wide side and the narrow side of the trapezoid reed are respectively two parallel sides of the trapezoid, one long side is the wide side, and the other short side is the narrow side, which are known to the person skilled in the art.
The three-dimensional balloon tubular woven fabric prepared by the method comprises a left cone section, a middle straight section and a right cone section which are sequentially connected from left to right.
The number of the reeds is the warp density divided by the reed density of the wide side or the narrow side, and comprises an initial reed number A and a left cone reed number B i And the reed number C of the right cone section j Where i depends on the left end taper variation size and j depends on the right end taper variation size.
The diameter of the large end of the left cone section is the same as that of the middle straight section; the diameter of the large end of the right cone section is the same as that of the middle straight section.
The diameter of one end of the cone section is large, the diameter of the other end is small, the large end of the cone section is a thick end or a large end, and the small diameter is a thin end or a small end, which are known to the person skilled in the art.
The three-dimensional balloon type tubular woven fabric prepared by the method is applied to the fields of automobile manufacturing, building materials, aerospace or biomedical.
Aiming at the defects of the prior art, the invention provides a method for simultaneously changing the weaving mouth position and the reed number of a trapezoid reed to realize the rapid change of the fabric width so as to prepare the balloon tubular woven fabric. The reed density of the trapezoid reed changes along with the height of the reed, so the fabric width changes along with the change of the weaving port height in weaving, wherein the limit of the width change depends on the change multiple of the reed density, namely the specification of the trapezoid reed. Therefore, when the width change is too severe and the specification of the reed cannot be met at one time, the number of reeds is changed, the position of the weaving opening is adjusted to the width change before the change, and the further change of the width is realized by utilizing the change of the reed density of the reed again so as to achieve the ideal effect.
Specifically, when the fabric width is increased, the weaving port reaches the position with the minimum reed density from the position with the maximum reed density, namely, the narrow side of the trapezoid reed is moved to the wide side, the width is changed once, then warp yarns at the weaving port are manually drawn out from the front part of the loom, the number of reeds is reduced and reeded again, the weaving port is adjusted to be positioned at the position with the maximum reed density, namely, the loom port is returned to the narrow side of the trapezoid reed, then the weaving port is continuously moved to the position with the minimum reed density, namely, the wide side, and the secondary change of the width is completed. The reed width of reeding again is consistent with the reed width occupied by warp when the weaving port reaches the minimum reed density of the reed when the first change is carried out, at the moment, the warp density is the total warp number divided by the reed width, and the reed entering number is the warp density divided by the maximum reed density of the narrow sides at the moment. When the width of the tubular woven fabric is reduced, the moving direction of the weaving port is changed from the minimum reed density to the maximum reed density as in the principle.
Advantageous effects
According to the method for simultaneously changing the weaving mouth position and the reed number of the trapezoid reed, the reed specification and the reed number are designed according to the width difference value (the folding diameter ratio) of the fabric, so that the width of the tapered tubular woven fabric can be increased or reduced, and the prepared balloon type tubular woven fabric has the characteristics of large folding diameter ratio, adjustable shape and stable size, and the existing problems are well solved.
Drawings
FIG. 1 is a schematic view of a balloon-type tubular woven fabric;
FIG. 2 is a tube blank fabric;
fig. 3 is a schematic diagram of fabric preparation.
Detailed Description
The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
Example 1
The preparation method of the balloon type tubular woven fabric comprises the following specific steps:
step (1) polyester fiber and ultra-high molecular weight polyethylene fiber are selected as warp yarn and weft yarn of tubular fabric respectively;
step (2) designing the size and parameters of the tube blank fabric according to the upper machine width D (folding diameter) =pi D/2 (wherein D is the diameter of the tubular woven fabric);
step (3) selecting a trapezoid reed with a reed number of 100-200;
step (4), further calculating weaving parameters of the folding diameter ratio, the number of reeds in the warp and the number of times of changing the reed in number according to the design size of the tube blank fabric;
step (5) weaving from the left thin end of the tube blank according to the designed primary reed number A, wherein the weaving port starts from the narrow side of the trapezoid reed, and gradually approaches the wide side of the trapezoid reed along with the weaving process, so that the folding diameter of the fabric is gradually increased;
after the weaving opening of the step (6) reaches the width edge of the trapezoid reed, the warp yarns are drawn out from the trapezoid reed at the front part of the loom, and the loom is used for weaving the warp yarns according to the number B of left cone segments i Wherein i= … … m; the loom is reversely wore, the loom fell is regulated to the narrow side of the trapezoid reed, weaving is started, and the folding diameter of the fabric is further gradually increased along with the gradual approach of the loom fell to the wide side of the trapezoid reed; determining the number m of reed-in number change of the left cone section according to the change of the taper degree of the left end, repeating the step until the folding diameter of the fabric meets the requirement of the middle section of the tube blank, and finishing the weaving of the left cone section;
step (7), weaving straight sections in the tube blank with the position of the weaving port unchanged and other basic parameters unchanged;
after finishing the straight section in the tube blank, starting the weaving of the weaving port gradually approaching to the narrow edge of the trapezoid reed, and gradually reducing the folding diameter of the fabric along with the weaving;
after the weaving port of the step (9) reaches the narrow edge, the warp yarn is drawn out from the trapezoid reed at the front part of the loom, and the warp yarn is reeded in the number C according to the right cone segment j Wherein j= … … n; the loom is reversely wore, the loom fell is regulated to the wide side of the trapezoid reed, weaving is started, and the folding diameter of the fabric is further gradually reduced along with the gradual approach of the loom fell to the narrow side of the trapezoid reed; and determining the number of times n of change of the reed number of the right cone section according to the change of the taper degree of the right end, and repeating the step until the diameter of the fabric reaches the requirement of the right side end (right thin end), and finishing the weaving of the right cone section of the tube blank.
In the method for preparing the balloon-type tubular woven fabric according to the embodiment, the spindle shape refers to a variable diameter portion of the fabric with a large folding diameter ratio, wherein two variable diameter portions are presented in a substantially symmetrical form, as shown in fig. 1, and may also be presented in an asymmetrical form.
Example 2
Weaving according to the preparation method of example 1: balloon type tubular woven fabrics with the left thin end diameter of 1.7mm and the straight pipe length of 7mm, the left cone section length of 7mm, the large end diameter of 4mm and the straight pipe length of 20mm, the right cone section length of 7mm, the right thin end diameter of 1.7mm and the straight pipe length of 7mm are selected as warp and weft yarns, polyester monofilaments with the fineness of 7.8tex and ultra-high molecular weight polyethylene fiber multifilaments with the fineness of 2.5tex are respectively selected, and the folding diameter ratio of the large end to the small end is 2.3:1, the number of left cone reed is changed for 1 time, the number of right cone reed is changed for 1 time, and the diameter of the left and right thin ends is consistent, the number of right cone reed is C 1 =initial reed number a, the taper angle of the tube blank after weaving was about 13 °, and the weaving parameters are shown in table 1.
TABLE 1 weaving parameters
Example 3
Weaving according to the preparation method described in example 1: balloon type tubular woven fabrics with the left thin end diameter of 2.2mm and the straight pipe length of 7mm, the left cone section length of 15mm, the large end diameter of 12mm and the straight pipe length of 20mm, the right cone section length of 15mm, the left thin end diameter of 2.2mm and the straight pipe length of 7mm are selected as warp and weft yarns respectively, and the size end folding diameter ratio of the polyester monofilament with the fineness of 7.8tex and the ultra-high molecular weight polyethylene multifilament with the fineness of 2.5tex is 5.5:1, the number of left cone reed is changed 2 times, the number of right cone reed is also changed twice due to the symmetry of the two ends, and the number of right cone reed is C 1 Number of reed-in of left cone segment B 1 Right cone reed number C 2 The initial reed number a, the taper angle of the finished tube blank can reach 28 degrees, and the weaving parameters are shown in table 2.
TABLE 2 weaving parameters
Claims (10)
1. A method for preparing a three-dimensional balloon-type tubular woven fabric, comprising:
(1) Selecting warp and weft fibers;
(2) Designing the size and parameters of the tube blank fabric according to the balloon type tubular woven fabric model, and designing weaving parameters according to the size of the tube blank fabric;
(3) Weaving from the left side end of the tube blank according to the number of initial warp reeds entering the loom, wherein a weaving port starts from the narrow side of the trapezoid reed, and the weaving port gradually approaches the wide side of the trapezoid reed along with the weaving process, so that the folding diameter of the fabric is gradually increased;
(4) After the weaving port reaches the wide edge of the trapezoid reed, the warp yarns are drawn out from the trapezoid reed at the front part of the loom according to the number B of left cone reed entries i I= … … m, reversely threading the reed, adjusting the weaving port to the narrow side of the trapezoid reed, starting weaving, and gradually increasing the folding diameter of the fabric as the weaving port gradually approaches the wide side of the trapezoid reed; determining the number m of reed-in number change of the left cone section according to the change of the taper degree of the left end, wherein m is a positive integer, repeating the step until the folding diameter of the fabric reaches the middle section of the tube blank, and finishing the weaving of the left cone section;
(5) Weaving straight sections in the tube blank without changing the weaving port position;
(6) After finishing the straight section in the tube blank, starting the weaving of the weaving port gradually approaching to the narrow edge of the trapezoid reed, and gradually reducing the folding diameter of the fabric along with the weaving;
(7) After the weaving port reaches the narrow edge, the warp yarn is drawn out from the trapezoid reed at the front part of the loom according to the number C of the right cone reed j J= … … n, reversely threading the reed, adjusting the weaving port to the wide side of the trapezoid reed, starting weaving, and gradually reducing the folding diameter of the fabric along with the gradual approach of the weaving port to the narrow side of the trapezoid reed; and determining the number of times n of change of the reed number of the right cone section according to the change of the taper degree of the right end, wherein n is a positive integer, and repeating the step until the diameter of the fabric reaches the right side end, and finishing weaving the right cone section of the tube blank.
2. The preparation method according to claim 1, wherein the fibers in the step (1) are one or more of chemical fibers and natural fibers; the chemical fiber is one or more of terylene and chinlon.
3. The method according to claim 1, wherein the weaving parameters in the step (2) are weaving length, folding diameter ratio, warp and weft yarn density, trapezoidal reed specification, number of reed in changes.
4. The weaving parameter of claim 3, wherein the folding ratio is 10:1 to 2:1.
5. A weaving parameter according to claim 3, wherein the warp yarn density varies as the diameter of the two ends and the middle straight section of the balloon-type tubular woven fabric varies.
6. The weaving parameter of claim 3, wherein the ratio of the width to the length of the narrow sides of the trapezoidal reed is 4:1-2:1, and the ratio of the maximum reed density of the width to the minimum reed density of the narrow sides is 4:1-2:1.
7. A weaving parameter according to claim 3, characterized in that the number of warp reed-ins is the warp density divided by the broadside or narrow side reed density, the number of reed-ins being changed by not less than 1.
8. A three-dimensional balloon-type tubular woven fabric prepared by the method of claim 1, wherein the fabric comprises a left cone section, a middle straight section and a right cone section which are connected in sequence from left to right.
9. The three-dimensional balloon-type tubular woven fabric according to claim 8, wherein the large end diameter and the middle straight section diameter of the left cone section are the same; the diameter of the large end of the right cone section is the same as that of the middle straight section.
10. Use of a three-dimensional balloon-type tubular woven fabric prepared by the method of claim 1 in the fields of automotive manufacturing, building materials, aerospace or biomedical applications.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211097922.XA CN115369543B (en) | 2022-09-08 | 2022-09-08 | Three-dimensional balloon tubular woven fabric and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211097922.XA CN115369543B (en) | 2022-09-08 | 2022-09-08 | Three-dimensional balloon tubular woven fabric and preparation method thereof |
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| CN115369543B true CN115369543B (en) | 2024-04-12 |
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| WO1999040875A1 (en) * | 1998-02-12 | 1999-08-19 | Prodesco, Inc. | Tapered tubular prosthesis and method of making |
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| CN115369543A (en) | 2022-11-22 |
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