WO2022186106A1 - 編物基材の編成方法及び編物基材 - Google Patents
編物基材の編成方法及び編物基材 Download PDFInfo
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- WO2022186106A1 WO2022186106A1 PCT/JP2022/008161 JP2022008161W WO2022186106A1 WO 2022186106 A1 WO2022186106 A1 WO 2022186106A1 JP 2022008161 W JP2022008161 W JP 2022008161W WO 2022186106 A1 WO2022186106 A1 WO 2022186106A1
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- Prior art keywords
- knitting
- yarn
- base material
- knitted
- yarns
- Prior art date
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- 238000009940 knitting Methods 0.000 title claims abstract description 215
- 239000000463 material Substances 0.000 title claims abstract description 132
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000004744 fabric Substances 0.000 claims abstract description 30
- 239000011347 resin Substances 0.000 claims description 34
- 229920005989 resin Polymers 0.000 claims description 34
- 239000012783 reinforcing fiber Substances 0.000 claims description 23
- 230000014509 gene expression Effects 0.000 claims description 17
- 239000000049 pigment Substances 0.000 claims description 13
- 239000000835 fiber Substances 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 14
- 239000011151 fibre-reinforced plastic Substances 0.000 description 14
- 239000000975 dye Substances 0.000 description 9
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000009963 fulling Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
- D04B1/12—Patterned fabrics or articles characterised by thread material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/047—Reinforcing macromolecular compounds with loose or coherent fibrous material with mixed fibrous material
-
- 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
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/024—Fabric incorporating additional compounds
- D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
- D10B2403/02412—Fabric incorporating additional compounds enhancing mechanical properties including several arrays of unbent yarn, e.g. multiaxial 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
- D10B2505/00—Industrial
- D10B2505/02—Reinforcing materials; Prepregs
Definitions
- the present invention relates to a method of knitting a knitted base material and a technology of the knitted base material.
- Patent Document 1 discloses a knitted base material that can be used for fiber-reinforced plastics. Specifically, Patent Document 1 discloses a knitted fabric comprising a base material provided with a plurality of layers of warp and weft yarns arranged in a predetermined direction, and a retaining yarn for fixing the base material of the plurality of layers with a knitted fabric. A substrate is disclosed.
- the knitted base material as described in Patent Document 1 it is possible to apply a pattern by partially changing the weaving method of warp and weft. However, if the knitting method of the warp and weft is partially changed, the fiber-reinforced plastic formed using this knitted base material may have uneven strength due to the partial change of the knitting method. .
- the present invention has been made in view of the above circumstances.
- the problem to be solved is to provide a method of knitting a knitted base material and a knitted base material that can prevent uneven strength from occurring in a knitted base material having a pattern.
- the method of knitting a knitted fabric base material according to the present invention includes a base material having a plurality of layers of warp and weft made of reinforcing fiber yarns intersecting each other, and a fastener fixing the base material of the plurality of layers with a knitted fabric. and a yarn, wherein a pattern is expressed on the surface of the knitted base material using the retaining yarn when forming the knitted fabric.
- At least one of tuck, intarsia and jacquard may be used for the pattern expression. By configuring in this way, a pattern can be expressed using tuck, intarsia or jacquard.
- At least two kinds of knitting yarns may be used for the retaining yarns, and at least one kind of knitting yarns among the knitting yarns may function to make the other knitting yarns stand out. By configuring in this way, other knitting yarns can be emphasized, and various patterns can be expressed.
- the at least one type of knitting yarn may be transparent or translucent, or may have a property of becoming transparent or translucent when at least the knitted base material is impregnated with a resin.
- a wire having a smaller diameter than other knitting yarns may be used for the at least one type of knitting yarn.
- the at least one type of knitting yarn may have a color similar to that of the reinforcing fiber yarn.
- At least two kinds of knitting yarns are used for the retaining yarns, and at least one kind of knitting yarn among the knitting yarns has a pigment transferred to the resin when the knitted base material is impregnated with the resin.
- Colored knitting yarns may also be used.
- the dye is impregnated in the knitted base material with a resin between the plurality of reinforcing fiber yarns arranged in parallel or aligned with the reinforcing fiber yarns. Colored threads that transfer to the resin may be provided.
- a knitted base material according to the present invention is formed by the method for knitting a knitted base material.
- FIG. 5 is an enlarged view of the P2 portion of FIG. 4;
- the front view which showed typically the knitted base material (and FRP using the same) which concerns on 7th embodiment.
- the knitted base material 1 shown in FIGS. 1 to 6 is a base material formed by knitting fibers (knitting yarns 3 to be described later).
- the knitted base material 1 of the present embodiment is assumed to be used as a base material for fiber reinforced plastic (FRP).
- FRP fiber reinforced plastic
- FIGS. 1 and 2 show photographs of an example of the knitted base material 1
- FIG. 2 is an enlarged view of the portion P1 in FIG.
- Other figures schematically show the knitted base material 1 .
- FIGS. 3 and 4 schematically show the first region R1 and the second region R2 shown in FIGS. 1 and 2.
- FIG. FIG. 5 schematically shows a plan view of the knitted base material 1.
- FIG. 6 is an enlarged view of the P2 portion of FIG.
- a knitted base material 1 mainly comprises a base material 2 and a knitting yarn 3.
- the base material 2 shown in FIGS. 1 to 5 is formed by appropriately arranging reinforcing fiber yarns.
- the substrate 2 mainly comprises first base yarns 10 and second base yarns 20 .
- first base yarn 10 and the second base yarn 20 reinforcing fibers (for example, carbon fibers) are used.
- the first base yarn 10 and the second base yarn 20 are formed by twisting bundled carbon fibers in an appropriate twisting method.
- first base yarn 10 and the second base yarn 20 do not necessarily need to be formed by twisting fibers, and for example, bundled reinforcing fibers can be used as they are as the first base yarn 10 and the second base yarn 20. is.
- the first base yarns 10 are warp yarns arranged to extend in the vertical direction.
- a plurality of first base yarns 10 are arranged side by side.
- the first base yarns 10 are arranged at predetermined intervals from each other.
- the second base yarn 20 is a weft arranged to extend in the left-right direction.
- the second base yarn 20 is a single yarn that is arranged to extend in the left-right direction, folded back to the left-right opposite side at an appropriate position, and extended to the next course (in a meandering manner). ) is placed.
- the second base thread 20 is arranged in parallel so that a plurality of straight portions extending in the left and right direction are vertically aligned.
- the second base thread 20 is arranged so that the straight line portion extending left and right intersects the first base thread 10 at substantially right angles.
- the first base yarn 10 and the second base yarn 20 are provided in multiple layers along the front-rear direction. Specifically, a layer composed of a plurality of first base yarns 10 arranged laterally and a layer composed of a single second base yarn 20 arranged in a meandering manner are arranged so as to be alternately laminated in the front-rear direction. be done. At this time, the first base yarn 10 and the second base yarn 20 are arranged so that their front and rear positions are not interchanged (so as not to form a woven fabric). As an example, FIG. 5 shows an example in which six layers of the first base yarn 10 and the second base yarn 20 are stacked in the front-rear direction.
- the multi-layer base material 2 may be formed by stacking at least one layer of the first base yarn 10 and one layer of the second base yarn 20 (two layers in total), and the number of layers is limited. not to be
- the knitting thread 3 is a thread (retaining thread) that fixes the base material 2 formed of a plurality of layers with the knitted fabric.
- the knitting yarn 3 expresses a pattern on the surface of the knitted base material 1 using a plurality of types of knitting structures.
- any material such as polyester, nylon, and polypropylene can be selected.
- the knitting yarn 3 has a transition portion 3a extending between adjacent stitches in the course direction (horizontal direction) on the rear side of the rearmost first base yarn 10. is woven to pass through
- the knitting yarn 3 is knitted so that the stitch portion 3b between the stitches continuous in the wale direction (vertical direction) passes through the front side of the second base yarn 20 arranged most forward. In this way, the knitting yarn 3 holds the base material 2 formed of a plurality of layers from the front and back by the crossing portion 3a and the stitch portion 3b, so that the first base yarn 10 and the second base yarn 20 are held. can be fixed.
- the knitting yarn 3 expresses a predetermined pattern on the surface of the knitted base material 1 by forming a knitted fabric using a plurality of types of knitting structures.
- FIG. 1 exemplifies a knitted base material 1 in which a pattern of the letter “G” is expressed based on the difference in the appearance of the knitting structure of the knitting yarn 3 .
- the outline of the letter "G” is traced with a white line to make the pattern stand out.
- the area of the knitted base material 1 other than the pattern is referred to as a first area R1
- the area of the pattern is referred to as a second area R2.
- the knitting yarn 3 forms a knitted fabric only with knit loops.
- the knitted fabric is partially formed using tuck loops. The stitch shape of the tuck portion in the second region R2 will be specifically described below.
- the knitting structure of the second region R2 becomes a knitting structure that looks different from the first region R1 shown in FIG. (see Figures 1 and 2).
- the pattern of the character "G" is expressed by using a knitting structure with a different appearance between the predetermined pattern portion (second region R2) and the other portion (first region R1). is doing.
- the knitting structure of the knitting yarn 3 by appropriately changing the knitting structure of the knitting yarn 3, it is possible to appropriately express the pattern on the knitted base material 1. At this time, there is no need to partially deform the reinforcing fiber yarns, such as by partially knitting the first base yarn 10 and the second base yarn 20, in order to express the pattern. Therefore, the pattern can be expressed without unevenness in strength.
- the knitted base material 1 can be knitted using a flat knitting machine. Specifically, a plurality of first base yarns 10 are horizontally arranged and supplied to the needle bed of the flat knitting machine. The second base yarn 20 is inlaid in the needle gap of the flat knitting machine using a carrier that moves in front of the yarn feeding path of the first base yarn 10 . When knitting the six-layer knitted fabric base material 1 shown in FIG. Three second base yarns 20 are inlaid using three carriers each passing through the front side of the array of base yarns 10 .
- the knitting yarn 3 is fed to the knitting needles of the front needle bed using a carrier that passes through the rear side of the arrangement of the first base yarn 10 arranged at the rearmost side, and the first base yarn 10 and the first base yarn 10 that are stacked in multiple layers Knit the fabric against the bibase yarn 20 .
- the knitting yarn 3 can be used to fix the first base yarn 10 and the second base yarn 20, and the knitted base material 1 can be knitted.
- the method of knitting the knitted base material 1 is merely an example, and the knitting method is not limited to this method, and any method can be used for knitting.
- the knitted fabric base material 1 is formed by inserting the second base yarn 20 (weft) once every time two courses of knitting are performed using the knitting yarn 3.
- the present invention is not limited to this, and the interval at which the second base yarns 20 are inserted can be set arbitrarily. For example, it is possible to insert the second base yarn 20 each time a knitting course is performed using the knitting yarn 3 . Further, as shown in FIG. 3, when the second base yarn 20 is inserted once every two courses of knitting with the knitting yarn 3, another yarn (for example, , colored threads, etc.) can also be inserted.
- An FRP can be formed by impregnating the knitted base material 1 knitted in this way with a resin and then heating and compressing it.
- resin is applied to each yarn (first base yarn 10, second base yarn 20 or knitting yarn 3) in advance. There are methods such as coating.
- the knitted fabric base material 1 according to the second embodiment differs from the knitted fabric base material 1 according to the first embodiment (see FIG. 4 etc.) in that two types of knitting yarns ( The point is that the first knitting yarn 4 and the second knitting yarn 5) are used, and one of them is a transparent knitting yarn. This difference will be described below.
- the first knitting yarn 4 and the second knitting yarn 5 are alternately used for each course.
- the first knitting yarn 4 for example, the same yarn as the knitting yarn 3 according to the first embodiment is used.
- the second knitting yarn 5 a transparent (or translucent) yarn is used.
- the transparency of the second knitting yarn 5 is not particularly limited, but one having a transparency higher than at least the other retaining yarn (the first knitting yarn 4) is used.
- the second knitting yarn 5 made of transparent yarn is indicated by a chain double-dashed line.
- the second knitting yarn 5 a highly transparent knitting yarn
- the presence of the other first knitting yarn 4 is emphasized (conspicuous) when the FRP is formed by impregnating the resin. It becomes possible to express various patterns. For example, it is possible to obtain a visual effect as if the first knitting yarn 4 were floating in the resin.
- the second knitting yarn 5 is not limited to a transparent (or translucent) yarn, and for example, it is possible to use a yarn that becomes transparent (or translucent) when impregnated with resin.
- Such threads include, for example, white polyester threads and nylon threads. Since these yarns become translucent when impregnated with resin, the presence of the first knitting yarn 4 can be emphasized as in the example of FIG.
- the knitted base material 1 according to the third embodiment differs from the knitted base material 1 according to the second embodiment in that the second knitting yarn 5 is not a transparent yarn, but the first base yarn 10 and the second base yarn 20.
- the point is to use threads of the same color as This difference will be described below.
- the second knitting yarn 5 a yarn having the same color as the first base yarn 10 and the second base yarn 20 (reinforcing fiber yarn) is used.
- black yarns or similar colors close to black
- aramid fiber is used as the reinforcing fiber
- a yellow (or similar color similar to yellow) yarn is used as the second knitting yarn 5 .
- the color of the second knitting yarn 5 is desirably the same (same color) as the color of the reinforcing fiber, but it is possible to use the same color as the reinforcing fiber, even if it is not necessarily the same color.
- a color similar to that of the reinforcing fiber (adjacent or close in the color wheel), the same color but different tone (color tone), the same base color, etc. can be used.
- the second knitting yarn 5 a knitting yarn of the same color as the reinforcing fiber, when the FRP is formed by impregnating the resin, the existence of the other first knitting yarn 4 is emphasized (conspicuous ), it is possible to express various patterns (see FIG. 7). For example, it is possible to obtain a visual effect as if the first knitting yarn 4 were floating in the resin. In order to emphasize the existence of the first knitting yarn 4, it is desirable that the color of the second knitting yarn 5 is closer to the reinforcing fiber than at least the first knitting yarn 4.
- the knitted fabric base material 1 according to the fourth embodiment differs from the knitted fabric base material 1 according to the second embodiment in that thin metal threads (wires) are used as the second knitting threads 5 (see FIG. 7). This difference will be described below.
- a metal thread (wire) thinner than the first knitting thread 4 is used as the second knitting thread 5 instead of a transparent thread.
- the thickness and material of the second knitting yarn 5 are not particularly limited, but at least a yarn thinner than the first knitting yarn 4 is used.
- the second knitting yarn 5 becomes inconspicuous.
- the presence of the other first knitting yarn 4 is relatively emphasized (conspicuous), and various patterns can be expressed.
- the second knitting yarn 5 is not limited to the metal yarn, and any material that can emphasize the existence of the first knitting yarn 4 may be used.
- any material that can emphasize the existence of the first knitting yarn 4 may be used.
- yarn thinner than the first knitting yarn 4 it is possible to emphasize the presence of the first knitting yarn 4, so in this case, yarn of the same material as the first knitting yarn 4 may be used.
- the knitted fabric base material 1 according to the fifth embodiment differs from the knitted fabric base material 1 according to the first embodiment (see FIG. 4 etc.) in that the knitting yarn 3 of a single type is not used, but two types of knitting yarns ( The point is that the first knitting yarn 4 and the second knitting yarn 5) are used and one of the yarns contains a pigment capable of coloring the resin. This difference will be described below.
- FIG. 8 illustrates an FRP 100 formed by impregnating the knitted base material 1 according to the fifth embodiment with a resin.
- a colored yarn is used as the first knitting yarn 4 .
- the dye for the first knitting yarn 4 a dye or pigment that migrates to the resin when the knitted base material 1 is impregnated with the resin is used.
- the second knitting yarn 5 does not contain pigment that transfers to the resin.
- the knitted fabric base material 1 in the fifth embodiment can perform pattern expression using pigments in addition to pattern expression by the knitting structure of the first knitting yarn 4 and the second knitting yarn 5, and various patterns can express.
- first knitting yarn 4 but also the second knitting yarn 5 contain a pigment (the same pigment or a different pigment).
- the knitted base material 1 according to the sixth embodiment differs from the knitted base material 1 according to the first embodiment (see FIG. 4 etc.) in that between the second base yarns 20 arranged vertically, colored The point is that the colored thread 6 is arranged. This difference will be described below.
- the colored threads 6 are arranged between the second base threads 20 so as to be substantially parallel to the second base threads 20 .
- a part of the second base yarn 20 of the knitted fabric base material 1 according to the first embodiment can be thinned out and the colored yarn 6 can be arranged in that part.
- the colored yarn 6 is colored using a dye or pigment that transfers to the resin when the knitted base material 1 is impregnated with the resin.
- the knitted fabric base material 1 in the sixth embodiment can perform pattern expression using dyes in addition to pattern expression by the knitting structure of the first knitting yarn 4 and the second knitting yarn 5, and various patterns can express.
- the pattern expression such as stripes by pigment can be performed.
- the dye can be transferred to the resin regardless of the arrangement of the knitting yarns 3, so various patterns can be expressed.
- FIG. 9 shows an example in which one colored thread 6 is arranged between two second base threads 20 arranged in parallel, but the number and arrangement of the colored threads 6 are not limited to this. Instead, for example, the second base yarn 20 and the colored yarn 6 can be alternately arranged or arranged in random order.
- the knitted base material 1 according to the seventh embodiment differs from the knitted base material 1 according to the sixth embodiment (see FIG. 9) in that the colored yarns 6 are arranged between the second base yarns 20 instead of being arranged between the second base yarns 20. , are aligned with the second base yarn 20 .
- the resin around the colored threads 6 (the second base threads 20) can be colored, and various patterns can be expressed.
- reinforcing fiber As the reinforcing fiber, but the present invention is not limited to this, and various other reinforcing fibers (eg, glass fiber, aramid fiber, etc.) can also be used. It is possible.
- various other reinforcing fibers eg, glass fiber, aramid fiber, etc.
- the present invention is limited to this. It is also possible to use, for example, three or more types of knitting yarns.
- the colored threads 6 are arranged parallel to the second base threads 20, but the present invention is limited to this. can be placed in any direction. For example, it can be arranged parallel to the first base yarns 10 (arranged between the first base yarns 10 or aligned with the first base yarns 10).
- the knitting structure of the second region R2 is different from that of the first region R1 by using the tuck in the second region R2, but the present invention is not limited to this. That is, it is also possible to use other knitting methods (intarsia, jacquard, etc.) in addition to tuck.
- the knitted structure in the present invention preferably includes at least one of tuck, intarsia and jacquard.
- FIG. 11 shows a schematic diagram of a knitted base material 1 in which an intarsia pattern is formed using a plurality of knitting yarns (retaining yarns) of different colors.
- Symbol A white circle in the drawing indicates, for example, a knit loop of yellow knitting yarn appearing on the surface of the base material.
- Symbol B shade circle in the figure indicates, for example, a knit loop of red knitting yarn appearing on the base material surface.
- Symbol C black circle in the drawing indicates, for example, a knit loop of black knitting yarn appearing on the base material surface.
- Symbol T inverted V-shaped mark in the drawing indicates a portion where two types of knitting yarns are tuck-connected.
- FIG. 11(a) shows an example of a knitted base material 1 in which two types of knitting yarns, yellow and red, are used to form an intarsia pattern in which the colors are divided into left and right.
- the two types of knitting yarns are tuck-connected to each other at the boundary.
- the specific method of knitting intarsia, the method of connecting knitting yarns, and the like are not limited to the examples in the drawings, and known methods can be arbitrarily adopted.
- the size of the stitch is reduced by the tuck loop at the boundary portion (the symbol T) of the two types of knitting yarns. different. This makes it possible to make the boundary portion of the knitting yarn stand out.
- the knitted fabric base material 1 shown in FIG. 11(a) by not connecting the two types of knitting yarns in a tuck connection, the size of the stitches in the boundary portion becomes equal (uniform) to the size of the stitches in the other portions. Therefore, it is possible to make the boundary part look neat. However, in this case, since the two types of knitting yarns are not connected to each other, when the knitted base material 1 is used to form an FRP, cracks may easily occur at the boundary portion.
- FIG. 11(b) shows an example of a knitted base material 1 in which an intarsia pattern is formed using black knitting yarn in addition to yellow and red knitting yarns.
- a black knitting yarn is knitted between courses in which yellow and red knitting yarns are knitted.
- the second base yarn 20 is inserted once every two courses, and the black knitting yarn is arranged at the insertion position of the second base yarn 20 .
- FIG. 11 shows an example using intarsia as a knitting structure
- jacquard knitting yarns are knitted by feeding knitting yarns from two carriers, knitting only one yarn, and missing the other yarn.
- the other knitting yarn is continuously miss. If the knitting yarn is not connected to the knitted base material 1 over a long distance on the back side surface of the knitted base material 1, a knitting defect may occur. Therefore, in consideration of ease of knitting, it is also possible to tuck and connect the yarn on the wrong side to the other yarn at a predetermined interval.
- the size of the stitches on the surface of the knitted base material 1 is changed by such tucking, it is also possible to express a pattern using this tucking. Also, by switching the knitting yarns to be knitted at predetermined intervals, it is possible to form a stripe pattern or a lattice pattern. In this case, the length of the missed portion can be reduced without tucking.
- the present invention can be applied to a method of knitting a knitted base material and a knitted base material.
- Knitted fabric base material 1 Knitted fabric base material 2 Base material 3 Knitting yarn 4 First knitting yarn 5 Second knitting yarn 6 Colored yarn 10 First base yarn 20 Second base yarn 100 FRP
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Abstract
Description
このように構成することにより、柄を有する編物基材において、留糸により柄表現を行うので、経糸・緯糸の配向に影響を与えず、強度ムラが生じるのを防止することができる。
このように構成することにより、タック、インターシャ又はジャカードを用いて柄表現を行うことができる。
このように構成することにより、他の編糸を強調することができ、ひいては多様な柄表現を行うことができる。
このように構成することにより、留糸のうち少なくとも1種類の編糸を他の編糸に対して目立たなくすることにより、当該他の編糸を強調することができ、ひいては多様な柄表現を行うことができる。
このように構成することにより、留糸のうち少なくとも1種類の編糸を他の編糸に対して目立たなくすることにより、当該他の編糸を強調することができ、ひいては多様な柄表現を行うことができる。
このように構成することにより、留糸のうち少なくとも1種類の編糸を他の編糸に対して目立たなくすることにより、当該他の編糸を強調することができ、ひいては多様な柄表現を行うことができる。
このように構成することにより、編物基材に樹脂を含浸させた場合に、編糸の周囲の部分へと色素を移らせ、留糸を用いた柄表現に加えて色素を用いて柄表現を行うことができる。こうして、多様な柄表現を行うことができる。
このように構成することにより、編物基材に樹脂を含浸させた場合に、留糸(すなわち、留糸の柄表現(形状)や配置)に依らずに樹脂へと色素を移らせ、留糸を用いた柄表現に加えて色素を用いて柄表現を行うことができる。こうして、多様な柄表現を行うことができる。
このように構成することにより、強化繊維糸の編み方を部分的に変更することなく、留糸を用いた柄表現を行うことによって、柄を有すると共に強度ムラが生じるのを防止することができる。
2 基材
3 編糸
4 第一編糸
5 第二編糸
6 着色糸
10 第一ベース糸
20 第二ベース糸
100 FRP
Claims (9)
- 強化繊維糸からなる経糸と緯糸が互いに交差するように複数層設けられた基材と、
前記複数層の基材を編地によって固定する留糸と、
を備えた編物基材の編成方法であって、
前記編地の形成時に、前記留糸を用いて前記編物基材の表面に柄表現を行う、
編物基材の編成方法。 - 前記柄表現には、タック、インターシャ及びジャカードの少なくとも1種類を用いる、
請求項1に記載の編物基材の編成方法。 - 前記留糸には、少なくとも2種類の編糸が用いられ、
前記編糸のうち少なくとも1種類の編糸は、他の編糸を目立たせるために機能する、
請求項1又は請求項2に記載の編物基材の編成方法。 - 前記少なくとも1種類の編糸は、透明又は半透明である、若しくは、少なくとも前記編物基材に樹脂を含浸させた場合に透明化又は半透明化する特性を有する、
請求項3に記載の編物基材の編成方法。 - 前記少なくとも1種類の編糸には、他の編糸に比べて径の細いワイヤーが用いられる、
請求項3又は請求項4に記載の編物基材の編成方法。 - 前記少なくとも1種類の編糸は、前記強化繊維糸と同系色である、
請求項3から請求項5までのいずれか一項に記載の編物基材の編成方法。 - 前記留糸には、少なくとも2種類の編糸が用いられ、
前記編糸のうち少なくとも1種類の編糸には、前記編物基材に樹脂を含浸させた場合に色素が樹脂へと移る有色の編糸が用いられる、
請求項1から請求項6までのいずれか一項に記載の編物基材の編成方法。 - 前記並列された複数の強化繊維糸の間に、又は、前記強化繊維糸と引き揃えられるように、前記編物基材に樹脂を含浸させた場合に色素が樹脂へと移る有色の糸が設けられる、
請求項1から請求項7までのいずれか一項に記載の編物基材の編成方法。 - 請求項1から請求項8までのいずれか一項に記載の編物基材の編成方法により形成された編物基材。
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JPS5617246A (en) * | 1979-07-17 | 1981-02-19 | Garufu Suteitsu Paper Corp | Reinforcing knitted article and laminate manufactured by said article |
JPH01229852A (ja) * | 1988-03-02 | 1989-09-13 | Toray Ind Inc | 複合材料用補強基材 |
JP2014034737A (ja) * | 2012-08-07 | 2014-02-24 | Shima Seiki Mfg Ltd | 編物基材、および編物基材の編成方法 |
JP2019044093A (ja) * | 2017-09-04 | 2019-03-22 | 地方独立行政法人東京都立産業技術研究センター | Frp成形品及びその製造方法 |
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DE4419985C2 (de) | 1994-06-08 | 1996-04-04 | Univ Dresden Tech | Mehrlagengestrick und Verfahren zu seiner Herstellung |
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JPS5617246A (en) * | 1979-07-17 | 1981-02-19 | Garufu Suteitsu Paper Corp | Reinforcing knitted article and laminate manufactured by said article |
JPH01229852A (ja) * | 1988-03-02 | 1989-09-13 | Toray Ind Inc | 複合材料用補強基材 |
JP2014034737A (ja) * | 2012-08-07 | 2014-02-24 | Shima Seiki Mfg Ltd | 編物基材、および編物基材の編成方法 |
JP2019044093A (ja) * | 2017-09-04 | 2019-03-22 | 地方独立行政法人東京都立産業技術研究センター | Frp成形品及びその製造方法 |
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