WO2021045711A1 - Ultrasonic sewing use in multi-axial surface production method - Google Patents
Ultrasonic sewing use in multi-axial surface production method Download PDFInfo
- Publication number
- WO2021045711A1 WO2021045711A1 PCT/TR2020/050795 TR2020050795W WO2021045711A1 WO 2021045711 A1 WO2021045711 A1 WO 2021045711A1 TR 2020050795 W TR2020050795 W TR 2020050795W WO 2021045711 A1 WO2021045711 A1 WO 2021045711A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- yarns
- ultrasonic sewing
- yarn
- axial
- sewing
- Prior art date
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/69—General aspects of joining filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/726—Fabrics
Abstract
The invention relates to a method for obtaining a multi-axial textile surface (10) comprising steps of obtaining yarn layers (11) by passing (A) yarns (111) into frames (20) at different directions and angles and bonding (C) of yarns (111) by ultrasonic sewing without taking out from frames (20) in order to provide fixing of yarn layers (11) to provide a surface integrity.
Description
ULTRASONIC SEWING USE IN MULTI-AXIAL SURFACE PRODUCTION
METHOD
DESCRIPTION
Technical Field
The invention relates to a method for combining yarn layers formed with multi-axial textile surfaces with ultrasonic sewing.
The invention relates to the use of ultrasonic sewing to fix the yarns forming the multiaxial surfaces in the production of multiaxial textile surfaces use of which increases especially in the field of technical textiles and composite materials.
State of the Art
Today forming a textile surface by use of textile materials can be made by means of four different principles: weaving, knitting, non-woven surface production and multi-axial surface production. In weaving and knitting principles, yarns passing over each or inside each is used. In such principles, connection points of yarns are formed, and it provides to keep surface together without need for further fixing thereof. In weaving principle, yarns are divided into two groups, wefts and warp yarns and connection points are formed by running them under and above each. In knitting principle, yarns pass from inside each other and form loops of yarns and the connection points are formed where loops of yarns contact with each other.
In non-woven surface production, the structure forming surface is fibres. The fibres are laid in same direction to form a web, and then the fibre layers are fixed by bonding the fibres from certain areas by chemical, mechanical or thermal methods. Bonding methods used for fixing web layers are determined based on properties of fibre which forming non-woven surface. The chemical bonding method is based on spraying chemicals onto web, absorbing thereof, putting onto surface or transmission by means of printing etc. The mechanical bonding method is based on needling, water jet bonding and sewing methods. Needling bonding is used for fixing webs made by means of scanning air laying or filament based
methods. Water jet bonding is provided by means of forming weaving by water of high pressure for soft and durable surfaces. The thermal bonding method is used for bonding of thermoplastic fibres such as rayon and polypropylene in particular and performed by means of melting thermoplastic binders in web layer by heating. In addition, bonding by hot cylinders is one of heat bonding methods and obtained by means of passing web between two heated cylinders. Hot air transfer, sound wave transmission (ultrasound) and hollow drum systems can also be listed under other thermal bonding methods.
For multi-axial surface production, it is possible to form a surface made of more than one layer by use of yarns as in weaving and knitting. However, surfaces formed by yarns do not have connection points and fixing of yarns is needed. Commonly chain stitch, as well as lock stitch, is used for yarns fixing. Use of multi- axial surfaces in textile reinforced composite production to achieve high mechanical features has become popular.
Multi-axial fabrics are produced by advanced warp weaving technology and are called non-crimp fabrics because of having no oriented fabric structures or any folding in yarn groups therein. Multi-axial fabrics are surfaces where the thread groups forming the fabric structure are fixed by the secondary thread groups with the help of needles. Generally, polyester yarns are used to keep the yarn layers together. In the production of multi-axial structures, it is fixed by putting more than two structures onto each and knotting in the structure knitting area by a separate warp yarn group. The structures are achieved by means of at least three of yarn groups of 0, 90, +45, -45, +20, -20, +30, -30.. etc. are laid onto each and sent to knitting area and there knots with warp yarns are formed and fixed.
Conventional sewing types used in combining fabric folds or assembly to each other are lock stitch, chain stitch and hand stitch. In addition to them, ultrasonic sewing is also encountered as a different sewing type. Ultrasonic sewing is the name given to melting two fold fabric by high frequency sound energy and combination thereof. Ultrasonic sewing is clean and smooth sewing which is in same alignment with fabric surface and does not need yarn rand needle
requirement. Ultrasound sewing is a method effective for combining thermoplastic materials. Fabrics to be combined by ultrasonic sewing can be 100% synthetic or 60% synthetic such as polyester, polyamide, polypropylene, acrylic etc.
Use of chain stitch or lock stitch for forming multi-axial surface is a costly item because of need for needle and yarn. In addition, operations performed by needle and yarn comprises a complex process and are performed slowly and cause time loss. Additionally, yarn breaking and needle replacements arising from needle deformation decreases production speed and creates an effect on increasing the production cost.
As a result, due to the above described disadvantages and inadequacy of existing solutions it has been necessary to make development in the related art.
Brief Description of the Invention
The present invention relates to a multi-axial textile surface wherein yarn layers are combined by ultrasonic sewing and meeting above mentioned requirements, eliminating all disadvantages and bringing some further advantages.
The primary purpose of the invention is to disclose an ultrasonic sewing combining method decreasing time loss in forming multi-axial surface from particularly thermoplastic based yarns and reducing cost.
Another purpose of the invention is to disclose a multi-axial surface forming method providing combining by ultrasonic sewing and increasing production speed.
A further purpose of the invention is to disclose a method for forming multi-axial surface not requiring extra process steps such as yarn breaking, needle deformation and needle replacement and providing combination by ultrasonic sewing.
Another purpose of the invention is to disclose a method for forming multi-axial surface enabling low-cost capital operation and providing combination by ultrasonic sewing.
In order to achieve the above mentioned purposes, the invention relates to a method for achievement of a multi-axial textile surface comprising of yarn layers obtained by means of passing yarns into frames from different directions and angles. According to it, said method comprises process of combination of yarns by means of ultrasonic sewing without taking yarns out of frame in order to provide yarn layers fixing in a manner to provide surface integrity.
In order to achieve purposes of the invention, preferably 60-100% of said yarns is thermoplastic based synthetic yarn.
In order to achieve purposes of the invention, it is a multi-axial textile surface comprising of yarn layers obtained by passing yarns into frames at different directions and angles. It comprises one-line or multi-ultrasonic sewing area formed on said textile surface yarn layers.
The structural and characteristics features of the invention and all advantages will be understood better in detailed descriptions with the figures given below and with reference to the figures, and therefore, the assessment should be made taking into account the said figures and detailed explanations.
Brief Description of the Drawings
Figure 1 is a schematic view of method for obtaining multi-axial textile surface by ultrasonic sewing.
The drawings are not necessarily to be scaled and the details not necessary for understanding the present invention might have been neglected. In addition, the components which are equivalent to great extent at least or have equivalent functions at least have been assigned the same number.
Description of References
10 Multi-axial Textile Surface
11 Yarn Layer 111 Yarn
12 Ultrasonic Sewing Area 20 Frame
A: Passing yarns into frames B: Obtaining non-fixed yarn layer
C: Obtaining multi-axial surface by combining with ultrasonic sewing
Detailed Description of the Invention
In this detailed description, a method for obtaining a multi-axial textile surface by use of combination process with ultrasonic sewing has been disclosed only as example for the purpose of better understanding of the subject and described in a manner not causing any restrictive effect.
The invention discloses use of ultrasonic sewing for the achievement of multi-axial textile surface (10). Multi-axial textile surface (10) comprises of yarn layers (11) fixed in single line or preferably multiple numbers by ultrasonic sewing area (12). Yarn layers (11) are defined by yarns (111) passed into frames (20) in different direction and angles.
With reference to figure 1, as it can be seen from schematic view showing achievement of multi-axial textile surface (10), the method basically comprises of three steps. The first step is the passing of the yarns into frames (A), the second step is obtaining layer of not fixed yarn (B) and last step is obtaining multi-axial surface (10) by ultrasonic sewing (C). Passing the yarns into frames (A) is performed by means of tightening yarns (111) at specified direction and angles according to features of yarn layer (11) intended to be obtained and laying between frames (20). Upon completion of the step, not fixed yarn layer (11) is
obtained. Obtaining multi-axial textile surface (10) is provided by means of fixing not fixed yarn layer (10) yarns (111) by use of ultrasonic sewing. Obtaining multi- axial textile surface (10) is provided by means of fixing not fixed yarn layer (10) yarns (111) by use of ultrasonic sewing. Ultrasonic sewing is performed without removing yarns from frames and can be applied in a single row or multiple. Ultrasonic sewing is achieved preferably at 0,5 - 1 cm intervals.
Forming ultrasonic sewing lines (12) on yarn layer (11) is provided by ultrasonic sewing machines. Step of combining at ultrasonic sewing machines is achieved in form of interconnection of yarn layers (11) and this function is made by parts called horn and anvil. Horn is connected to ultrasonic energy generator and concentrates high frequency mechanical vibration energy and transmits into yarn layer (11). Yarn layers (11) compressed between horn and anvil have friction due to high frequency mechanical vibration energy and thus heat releases. The releasing heat provides melting and sticking of synthetic yarns together (111). Upon sticking, yarn layers (11) proceed and get away from vibration energy, adhesive effect occurring as an immediate heat loss becomes permanent and thus ultrasonic sewing area (12) is obtained. Multi-axial textile surfaces (10) obtained by method of combining by ultrasonic sewing of the invention comprises thermoplastic based synthetic yarns (111) at the rate of preferably 60-100% so as to form ultrasonic sewing area (12).
The invention discloses a different production method alternative for multi-axial textile surface (10) production. Particularly provides an advantage in terms of time and cost for structures to be obtained by thermoplastic based yarns (111). Ultrasonic sewing applied therein is faster in comparison to chain sewing and lock sewing and therefore use of ultrasonic sewing in multi-axial textile surface (10) also increases the speed of production of multi-axial structure. Use of needle and yarn in chain and lock sewing will cause an extra cost. Since this case is not available in ultrasonic sewing, use of ultrasonic sewing provides a cost advantage. Also, yarn breaking is another issue affecting production speed considerably. Needle deformation and needle replacement resulted therefrom also cause time
loss. Since ultrasonic sewing does not have needle and needle use, it provides advantage in terms of both speed as well as cost and capital.
Claims
1. A method for obtaining a multi-axial textile surface (10) comprising of yarn layers (11) obtained by passing (A) yarns (111) into frames (20) at different directions and angles characterized by comprising of the following step
- bonding (C) by ultrasonic sewing without need for taking out yarns (111) from frames (20) to provide fixing of yarn layers (11) in a manner to provide surface integrity.
2. The method for obtaining a multi-axial textile surface (10) according to claim 1 characterized in that; said yarns (111) being thermoplastic based synthetic yarn (111 ) of preferably 60-100%.
3. The multi-axial textile surface (10) made from yarn layers (11) obtained by passing (A) yarns (111) into frames (20) at different directions and angles characterized by comprising; ultrasonic sewing area (12) in a single line or multiple lines formed on yarn layers (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR201913425 | 2019-09-05 | ||
| TR2019/13425 | 2019-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021045711A1 true WO2021045711A1 (en) | 2021-03-11 |
Family
ID=74852143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2020/050795 WO2021045711A1 (en) | 2019-09-05 | 2020-09-02 | Ultrasonic sewing use in multi-axial surface production method |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2021045711A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02300416A (en) * | 1989-05-12 | 1990-12-12 | Takiron Co Ltd | Geotextile for banking |
| US20010006866A1 (en) * | 1999-12-28 | 2001-07-05 | Polymer Processing Research Institute, Ltd. | Tow multiaxial non-woven fabric, and method of making the same |
| US20160000615A1 (en) * | 2014-06-12 | 2016-01-07 | Dow Global Technologies Llc | Multilayer films, and articles made therefrom |
| CN207156472U (en) * | 2017-09-25 | 2018-03-30 | 重庆辰滤科技有限公司 | Ultrasonic welding machine for nonwoven filtration cloth |
| CN108859385A (en) * | 2018-07-09 | 2018-11-23 | 杭州欣富实业有限公司 | Three layers of compound nonwoven cloth and its process equipment and processing technology |
-
2020
- 2020-09-02 WO PCT/TR2020/050795 patent/WO2021045711A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02300416A (en) * | 1989-05-12 | 1990-12-12 | Takiron Co Ltd | Geotextile for banking |
| US20010006866A1 (en) * | 1999-12-28 | 2001-07-05 | Polymer Processing Research Institute, Ltd. | Tow multiaxial non-woven fabric, and method of making the same |
| US20160000615A1 (en) * | 2014-06-12 | 2016-01-07 | Dow Global Technologies Llc | Multilayer films, and articles made therefrom |
| CN207156472U (en) * | 2017-09-25 | 2018-03-30 | 重庆辰滤科技有限公司 | Ultrasonic welding machine for nonwoven filtration cloth |
| CN108859385A (en) * | 2018-07-09 | 2018-11-23 | 杭州欣富实业有限公司 | Three layers of compound nonwoven cloth and its process equipment and processing technology |
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