A woven bag and its manufacturing method
By using flyknitting technology and special fabric structure, the problems of poor durability and difficulty in bending existing bag products have been solved, resulting in woven bags that are easy to manufacture, beautiful, and can withstand tensile forces.
Patent Information
- Application Number
- CN202010137170.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-03-02
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2040-03-02
AI Technical Summary
Existing materials for handbags and tote bags suffer from poor durability, easy aging, high pollution, difficulty in bending, and unsuitability for tensile strength. In particular, fabrics made from marine yarn are difficult to bend and withstand tensile strength when making small bags.
The main body sheet is woven in one step using flyweave technology. The main body sheet has a multi-layer sheet structure with fewer fabric layers in the bending area than in other areas. By using vacuuming, single-sided passing, and valley wave processes, fewer layers are set in the bending area. Combined with the characteristics of nylon hot melt yarn and marine yarn, a woven bag that is easy to bend and can withstand tensile strength is formed.
It achieves the characteristics of easy manufacturing, good durability, beautiful appearance and not easily damaged by external pulling, and can withstand great tensile force and maintain stable shape.
Smart Images

Figure CN113337947B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of woven bags and their manufacturing methods. Background Technology
[0002] People typically carry handbags or tote bags to hold small items they might need frequently, such as tissues and cosmetics. Existing handbags and tote bags can be made from animal skin, artificial leather, plant-based fabrics, nylon, and other materials. It is well known that animal skin requires the sacrifice of animals. Artificial leather generally suffers from aging problems. Plant-based fabrics are prone to moisture and mold, resulting in a relatively short lifespan. Nylon requires synthetic chemicals, and its production process generates significant pollution. Therefore, there is a need to find a durable and environmentally friendly material.
[0003] It is known that materials such as plastic bottles and bags, made from substances that are not easily decomposed by nature, are carelessly discarded and flow into the ocean, causing white pollution. Some companies have already begun recycling this marine debris and manufacturing fiber products like marine yarn. Typically, to ensure product lifespan, these marine yarns are woven into multi-layered fabrics before being used to make related products. The problem with this is that multi-layered fabrics are not easily bent, requiring workers to expend considerable effort to bend the fabric and hold it in place before sewing. For smaller bags such as handbags and tote bags, workers need to expend even more effort.
[0004] Another characteristic of ocean yarn is its excellent stretchability. Fabrics made from ocean yarn are easily stretched under tension, making them suitable only for products like shoes that don't withstand significant tensile stress. Handbags and tote bags, which need to hold various items and thus experience different levels of tension, are not suitable for making fabrics made from ocean yarn. Summary of the Invention
[0005] One of the objectives of this invention is to provide an easy-to-manufacture woven bag and a method for manufacturing the woven bag, wherein the woven bag is made using flyknitting technology.
[0006] The present invention solves the above-mentioned technical problems through the following technical solution:
[0007] The woven bag includes a main body, which is made of a main sheet woven in one pass by a flying loom. The main sheet is configured to be directly sewn into a predetermined shape of the bag after being picked, bent, and folded. The main sheet has a multi-layered sheet structure, and the main sheet has fewer fabric layers in at least a portion of the bending areas than in other areas.
[0008] By using fewer fabric layers in the bending area, the main sheet becomes easier to bend at that location, simplifying the bag's manufacturing process. Furthermore, during use, the main sheet adjacent to this bending area defines the bag's structural shape, exhibiting a greater thickness. After the main sheet is woven into the bag, the sections of the main sheet adjacent to the bending area are sewn together. Even when the bag is used to hold heavy items, the external forces borne by the thicker main sheet are absorbed, thus enabling it to withstand heavy loads.
[0009] According to a preferred embodiment of the present invention, the main sheet is a sheet-like fabric woven from nylon hot melt yarn and marine yarn and having a predetermined shape.
[0010] According to a preferred embodiment of the present invention, the fineness T of the marine yarn d1 For: 120D≤T d1 ≤180D.
[0011] According to a preferred embodiment of the present invention, the twist T of the marine yarn is: 32F≤T≤40F.
[0012] According to a preferred embodiment of the present invention, the number of plies in the marine yarn is 3, 4, or 5, and the number of nylon hot melt yarns is 2, with a fineness T. d2 For: 80D≤T d2 ≤110D.
[0013] According to a preferred embodiment of the present invention, the diameter d of the nylon hot melt wire is: 0.12mm≤d≤0.18mm.
[0014] According to a preferred embodiment of the present invention, the fineness T of the marine yarn d1 The nylon hot melt yarn has a denier of 150D, a ply count of 4, and a twist T of 36F; and the fineness T of the nylon hot melt yarn is... d2 It is either 90D or 100D.
[0015] After selecting the above ratio of nylon hot melt yarn and marine yarn, during the production of the main sheet, the nylon hot melt yarn, after being fused to the marine yarn, will greatly adjust the extensibility of the marine yarn, making the finished bag easier to maintain its original shape, thereby achieving another objective of the present invention.
[0016] According to a preferred embodiment of the present invention, the main sheet is provided with a plurality of bending regions extending along the length, width or height of the bag at the bending locations at the bottom and / or top of the bag to be formed.
[0017] According to a preferred embodiment of the present invention, the portion of the bending area is woven by a single-sided process, thereby enabling the main sheet to smoothly transition between the portion of the bending area and surfaces with different orientations.
[0018] According to a preferred embodiment of the present invention, the portion of the bending area is woven by a process of removing one or more threads, thereby causing the main body sheet to lack one or more layers on the inner side of the woven bag, thus forming a groove.
[0019] According to a preferred embodiment of the invention, another portion of the bending region is woven using a valley wave process, thereby causing the main sheet to bulge outwards toward the outside of the bag in another portion of the bending region.
[0020] According to a preferred embodiment of the invention, the edge of the main sheet has a rolled edge region.
[0021] According to a preferred embodiment of the present invention, the woven bag further includes a woven strip that serves as a handle for the woven bag and has a multi-layer sheet structure. The number of layers of fabric in the middle region of the woven strip along its longitudinal center line is less than the number of layers in other locations, thereby enabling the woven strip to be folded in the middle region along the longitudinal center line of the woven strip to form the gripping portion of the handle.
[0022] According to a preferred embodiment of the present invention, the woven bag further includes a fixing strap located on the outer bottom side, the fixing strap having a stiffness greater than that of the main body sheet.
[0023] Furthermore, the present invention also relates to a method for manufacturing the above-mentioned woven bag, specifically, the method comprising the following steps:
[0024] The main sheet constituting the main body of the bag is formed by a flying loom in one pass, wherein the main sheet has a multi-layer sheet structure, and the main sheet has fewer fabric layers in at least a portion of the bending areas than in other areas.
[0025] Provocation;
[0026] The main body sheet is bent according to the predetermined shape of the package; and
[0027] The adjacent edges of the main body sheet are sewn together to form the package with a predetermined shape.
[0028] According to a preferred embodiment of the present invention, the method further includes: ironing the main body sheet after the picking step to shape the main body sheet.
[0029] According to a preferred embodiment of the present invention, the surface of the main sheet has a pattern; the method further includes ironing the main sheet after the picking step to adjust and shape the pattern.
[0030] According to a preferred embodiment of the present invention, the method further includes:
[0031] A woven tape is provided that is woven in one step using flyknitting technology and fixed to the bag, wherein the woven tape has a multi-layer structure and is configured such that the number of fabric layers in its middle region along its longitudinal center line is less than the number of fabric layers in other locations, thereby enabling the woven tape to be folded along its longitudinal center line to form a grip portion of the woven bag.
[0032] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.
[0033] The woven bag of the present invention has the following advantages:
[0034] 1) By using one or more loops to create thinner fabric layers at the points where bending is required, the bag can be made easier to manufacture. Additionally, the looping process creates grooves on the outer and inner layers of the bag, corresponding to fewer fabric layers. Since these grooves are formed during the weaving process, they have a regular shape and can be used as thread holders. After sewing, the thread is located in these grooves, with no exposed thread ends. This gives the woven bag a good appearance and makes it less susceptible to damage from pulling on the thread ends.
[0035] 2) Using a thinner sheet on one side at the bending point facilitates bag manufacturing. Furthermore, in the bending area created using a thin sheet, the main sheet smoothly transitions to the adjacent area.
[0036] 3) The specially matched nylon hot melt yarn and marine yarn can effectively overcome the disadvantages of the extensibility of marine yarn, ensuring that the woven bag is not easily deformed. Attached Figure Description
[0037] Figure 1 , 2 This is a schematic diagram of a woven bag according to a first preferred embodiment of the present invention;
[0038] Figure 3 It is used to form Figure 1 , 2 A schematic diagram of the main sheet material of the woven bag shown;
[0039] Figure 4 yes Figure 3 A diagram illustrating the weaving principle of the main sheet material;
[0040] Figure 5 It is a diagram illustrating the weaving principle of the bent areas of the two bottom sections and their surrounding areas.
[0041] Figure 6 Figure 5 The weaving process diagram;
[0042] Figure 7 It is adopted Figure 5 , 6 A photograph of a fabric woven in the manner shown, where the fabric is shown from the bottom layer side;
[0043] Figure 8 It is a weaving process diagram of the bent area of the two hollowed-out sections of the surface layer and the area near it;
[0044] Figure 9 It is a weaving process diagram of the bent area and its surrounding area of the entire row of the surface layer that has been hollowed out;
[0045] Figure 10 It is adopted Figure 9 A photograph of a fabric woven in the manner shown, where the fabric is shown from the surface layer side;
[0046] Figure 11 It is a weaving process diagram of the bending area and its vicinity that has used a single-sided process;
[0047] Figure 12 It is adopted Figure 11 A picture of a fabric woven in the manner shown. Figure 13 It is a weaving process diagram of the bending area and its surrounding area using the valley wave technique;
[0048] Figure 14 It is adopted Figure 13 The image shows a physical example of a fabric woven in the manner illustrated, with the fabric shown from the surface layer side.
[0049] Figure 15 , 16 This is a schematic diagram of a woven bag according to a second preferred embodiment of the present invention;
[0050] Figure 17 It is used to form Figure 11 , 12 A schematic diagram of the main sheet material of the woven bag shown;
[0051] Figure 18 It can be used as Figure 1 , 2 A schematic diagram of the woven strap structure of handles 15 and 18. Detailed Implementation
[0052] The inventive concept of the present invention will now be described in detail with reference to the accompanying drawings. The embodiments described herein are merely preferred embodiments of the invention, and those skilled in the art can conceive of other ways to implement the invention based on these preferred embodiments, and such other ways also fall within the scope of the invention. In the following detailed description, directional terms such as "upper," "lower," "inner," "outer," "vertical," and "vertical direction" are used with reference to the directions described in the accompanying drawings. Components of embodiments of the present invention can be placed in various different orientations; directional terms are for illustrative purposes and not for limitation.
[0053] Figure 1 , 2 An exemplary woven bag according to the present invention is shown from different angles. For example... Figure 1 , 2 As shown, this woven bag is made using a flyknit technique. The bag includes a main body and handles, shoulder straps, etc., attached to the main body. The main body defines the storage space inside the bag for various items. Optionally, such as... Figure 2 As shown, a built-in pouch can be attached to the main body.
[0054] The main body of this invention is composed of a sheet of material woven in one pass using a flying knitting machine. Specifically, the main sheet is directly sewn into the predetermined shape of the bag after being picked, bent, and folded. The main sheet has a multi-layered structure, and at least in some bending areas, the number of fabric layers is less than in other areas. Therefore, the main sheet is easily bent in the desired bending areas to form the corners of the bag, and the adjacent sections can be sewn together by a worker. In the resulting woven bag, because the sections with fewer fabric layers do not bear tensile stress, the bag can withstand greater tensile forces.
[0055] The main sheet material is preferably woven from nylon hot melt yarn and marine yarn, and is a sheet-like fabric with a predetermined shape. The marine yarn is made from white pollution such as plastic bottles that flow into the ocean; it is a conventional material in this field and will not be described further here.
[0056] In order to use the marine yarn as a material for manufacturing the woven package of the present invention, the applicant interweaves nylon hot melt yarn with the marine yarn. Advantageously, the fineness Td1 of the marine yarn used to make the main body sheet is set to 120D (denier), ... 130D, ... 150D, ... 180D, etc.; the twist T is set to 32F, ... 36F, ... 40F, etc.
[0057] Nylon hot melt yarn, as a monofilament, has a fineness T d2 Preferably, it is set to 80D, ... 100D, ... 110D, etc., and its diameter is set to 0.12mm, ... 0.15mm, ... 0.18mm, etc.
[0058] Ideally, the fineness T of the marine yarn is... d1 The yarn is set to 150D, and the twist T is set to 36F; the fineness T of the nylon hot melt yarn. d2 The yarn is set to 90D or 100D, and the diameter is set to 0.15mm; the number of strands of marine yarn is set to 4; and the number of strands of nylon hot melt yarn is set to 2. At this time, the woven bag made by mixing the above-mentioned marine yarn with nylon hot melt yarn has a better shaping effect and retains a soft touch.
[0059] Figure 3 It shows the method of making Figure 1 , 2 The main body sheet of the woven bag shown is roughly cross-shaped. To illustrate that different locations on the main body sheet have different numbers of fabric layers, Figure 3 Thick lines are used to represent folded areas with fewer fabric layers, while thin lines are used to define the boundaries of the main sheet and the boundaries of the patterns on the main sheet.
[0060] exist Figure 3 In the cross-shaped main sheet shown, the central square frame area ABB'A', defined by thick lines, constitutes the bottom of the woven bag. The left protrusion (containing ACC'A') and right protrusion (containing BDD'B') of this area constitute the front and back of the woven bag, respectively. The upper and lower protrusions of this area constitute the width of the sheet. It can be understood that in this view, the extension direction of the left and right protrusions along the Y-axis is the length direction of the woven bag, and the extension direction along the X-axis is the height direction. The extension direction of the upper and lower protrusions (above A'B' and below AB) along the X-axis is considered "lateral," which is the thickness direction of the woven bag.
[0061] The following will Figure 3 The side of the main sheet facing the viewer is used as the outer side (outer layer) of the woven bag, while the side facing away from the viewer is used as the inner side (bottom layer) of the woven bag. See also Figure 3 and combined Figure 1 , 2 As can be seen, the main body of the woven bag is formed by bending the left and right protruding parts, as well as the top and bottom protruding parts of the central square frame area inward and sewing them together at the corresponding positions.
[0062] Reference Figure 3 In the direction of the Y-axis, the main sheet is woven from bottom to top. Figure 3The main sheet material forms longitudinal turning regions AA' and BB' at two bends at the bottom of the bag, extending along the length of the bag. Similarly, CC' and DD' are formed at two bends at the top of the bag. The aforementioned longitudinal turning regions AA', BB', CC', and DD' constitute longitudinal turning regions, and their fabric layers are fewer than those in the non-bending regions of the main sheet material.
[0063] In addition, the main sheet also forms transverse turning regions A'B' and AB extending along the thickness direction of the bag at two bending points at the bottom and / or top where the bag will be formed. Similarly, transverse turning regions A'B' and AB constitute transverse turning regions with fewer fabric layers than other parts of the main sheet.
[0064] The following description, in conjunction with other accompanying drawings, illustrates the special design employed in each bending area of the present invention. In the figures, A1 and A2 represent reverse stitch loops, B1 and B2 represent regular stitch loops, C1 and C2 represent four-way stitch loops, "↑" indicates the needle is flipped from the front needle plate to the back needle plate, "↓" indicates the needle is flipped from the back needle plate to the front needle plate, and "―" indicates an empty needle.
[0065] The main sheet material can be knitted using a flat knitting machine with a front needle plate and a back needle plate. Among these, Figure 4 As shown Figure 3 The shown is a process view of the main sheet material.
[0066] In the first embodiment, the longitudinal turning regions AA', BB', CC', and DD' are formed by removing multiple strands, thereby causing the main sheet to lack one or more layers in the turning region and on the inside of the woven package.
[0067] For the evacuation of multiple tubes process, see Figures 5-6 It shows a diagram illustrating the knitting principle of removing two needles from two layers of fabric. Figure 5 , 6 The image shows a magnified view corresponding to the locations of regions AA', BB', CC', and DD', and their vicinity. In the first row (refer to...) Figure 5 In the row from bottom to top, the yarn feeder is first knitted in stockinette stitch (4 stitches), then at the Nth stitch position, a skipped stitch is made, and then knitted in stockinette stitch (4 stitches). In the second row, the yarn feeder is also first knitted in stockinette stitch (4 stitches) to the Nth stitch position, then the back needle plate is turned (combined with...). Figure 6 At the two arrows, the yarn is spun in the N+1 stitch (skip a stitch), and then knitted in stockinette stitch. In the third row, the yarn tip is first tucked, then at the Nth stitch position, a skip a stitch is made, and then tucked is continued. Therefore, the fabric has a double-layer structure in other positions, while at the N and N+1 stitch positions, only the surface layer forms a fabric layer, and in the bottom layer (… Figure 3The inner layer of the paper is missing one layer (i.e., two tubes are missing from the bottom). Combined with... Figure 6 It can be seen that by repeating this weaving sequence, a pattern can be formed on the main sheet material as follows: Figure 3 The diagram shows longitudinally extending bends with bottom-evacuation layers AA', BB', CC', and DD'. For details on the resulting bottom-evacuation layers, please refer to [reference needed]. Figure 5 , 7 Region I.
[0068] Optionally, two folded areas, U1U2 and U3U4, with fewer fabric layers are provided on the main sheet. U1U2 and U3U4 are preferably created by removing one stitch, resulting in a missing bottom layer. Based on a similar mechanism of removing two stitches, that is, changing the N+1th stitch of the second row to begin knitting in stockinette stitch, a folded area with one stitch removed can be formed. Combined with... Figure 7 The resulting evacuated units U1, U2, U3, and U4 can be considered to have a width of only Figure 7 The area I is in half its form. After the main sheet is bent into shape, U1U2 and U3U4, which are offset from the bending lines AA' and BB', are used as references for the path of the seam and as grooves to accommodate the seam. At this time, the distance of U1U2 and U3U4 from the bending lines AA' and BB' is preferably set to 2, 3, 4, 5, 6 mm, etc., to facilitate the alignment of the corresponding edges on area ACC'A' with U1U2 and U3U4 and their sewing.
[0069] For surface evacuation layers, see Figure 8 Region II (i.e.) Figure 3 For the EE' and FF' stitches, when knitting to the row where a bend is required, the front needle plate is flipped to the back needle plate, and then purl stitches are used. The knitting principle is basically similar to that of the bottom tufted layer, the difference being only in the second row (combined with...). Figure 5 The Nth stitch position uses a reverse stitch. The difference between the surface hollow layer EE', FF' and the bottom hollow layer is that recesses are formed in the surface layer and bottom layer respectively, so as to facilitate the bending of the main sheet in different directions.
[0070] Figure 5-8 This describes the process of removing one layer of two threads (i.e., ...) from the surface or bottom layer of the fabric structure. Figure 5 The knitting principle of forming a bottom hollow layer with 2 stitches from left to right should be understood. Based on the same principle, those skilled in the art can also apply it to hollowing out 3, 4, or more stitches, as well as hollowing out 2, 3, or more layers in other bending areas. The above concept is also within the scope of protection intended by this invention.
[0071] Figure 5-8 This demonstrates the fabrication of a multi-branched structure using a vacuum method. Figure 3 The evacuation layer in the Y-axis direction can be used, while the evacuation layer in the X-axis direction can be... Figure 9 The weaving principle shown illustrates the weaving of a vacuum layer (surface vacuum). A vacuum layer extending along the X-axis (corresponding to...) needs to be created. Figure 9 In rows N and N+1 (i.e., area III), compared to the four-stitch knitting of the adjacent row, the yarn feeder at this position is turned over to use a reverse stitch (forming a volumized layer). The volumized layer formed in this way can be seen in [reference needed]. Figure 10 Region III.
[0072] Furthermore, in order to form fewer layers in the bending area, in the second embodiment, this area can also be formed using a single-sided weave, thereby allowing the main sheet to smoothly transition between surfaces with different orientations (between the horizontal and vertical planes at the bottom). Unlike the weave area with multiple threads removed, the area using a single-sided weave does not have obvious grooves (i.e., missing surface or bottom layers) in either the top or bottom layer, making it particularly suitable for bending areas where stitching is not required in the vicinity.
[0073] For unilateral travel, see [link / reference] Figure 11 As shown, compared to other rows, when setting a single-sided vacuum layer area IV, the back needle plate flips over to the front needle plate, and the front and back needle plates are knitted together as a single layer instead of separately. Since the front and back needle plates knit together as a single layer, it is possible to knit an effect like... Figure 12 The effect of a smooth transition in region IV.
[0074] The above describes various weaving methods that create fewer layers in the bending areas. However, according to the present invention, not all bending areas necessarily require this arrangement. For example, some bending areas are configured such that the outer (or bottom) layer of the main sheet bulges outwards towards the outside of the package. This type of bending area can be achieved using a troughing process.
[0075] For information on valley wave technology, please refer to [link / reference]. Figure 13 Area V. When the yarn feeder requires a wavy knit, the front and back needle plates do not need to be turned. During knitting, the needles of the yarn feeder are arranged in a four-stitch pattern. When knitting the wavy area, the purl stitches stop, while the knit stitches (on one side) can be knitted several more times before being adjacent to the purl stitch loops. This results in the outer layer (corresponding to the outside of the bag) having more loops than the inner layer (corresponding to the inside of the bag), creating a bulging, wavy structure. In this case, the outer layer allows for greater deformation, making it easier for the main sheet to bend towards the inner layer at this location. See the diagram for the formed area. Figure 14 .
[0076] The following example, using a woven bag of another shape, illustrates another advantage of employing the valley wave technique. See also Figure 15-17 ,in Figure 15-16 The overall structure of the bag is shown from different perspectives. Figure 17It shows the formation Figure 15-16 The main body sheet of the woven bag. The center joint lines LL' and MM' at both ends of the vertical surface (i.e., the two surfaces in the thickness direction) along the length of the bag are bends created using a wave-like process. These bends are located on the surface layer (the side of the woven bag closest to the outside) and have a wave-like structure. Based on the resilience provided by the marine yarn, the wave-shaped marine yarn tends to return to its original straight shape (or an outward-bulging arc shape). Therefore, it causes the bottom layer inside the woven bag to stretch, making the woven bag naturally bulge outwards at the location with the wave-like structure. Woven bags made in this way are less prone to "shriveling" after use and maintain a more stable shape.
[0077] See further Figure 3 , 17 To ensure that the various components of the woven bag of this invention are not easily pulled out by external forces, the edges of the main sheet are designed as areas with rolled edges. This eliminates various types of rough edges.
[0078] See Figure 18 and combined Figure 1-2 15-16, The handle 1 of the woven bag is optional. Figure 18 The woven tape 10 shown is made of a multi-layered sheet-like structure. Specifically, the fabric in the middle region 11 of the woven tape 10, along its longitudinal center line, can be made to have fewer fabric layers than in other areas by removing multiple strands as described above. In use, the woven tape 10 can be folded in half along its longitudinal center line in the middle region and then sewn or glued to form... Figure 1 , 2 The gripping part of the handle 1 shown.
[0079] To further support the shape of the handle 1, a long strip of high-density nonwoven fabric (not shown) can be placed inside the folded woven strip 10. The high-density nonwoven fabric has a higher stiffness than the woven strip 10.
[0080] To maintain the shape of the bag, optionally, one or more fixing straps may be provided on the outer bottom of the woven bag of the present invention, wherein the stiffness of the fixing straps is greater than that of the main body sheet. More preferably, multiple fixing straps are provided and arranged in a crisscrossing and regular pattern on the bottom of the woven bag.
[0081] The following are combined with Figure 1-3 The manufacturing process of the first type of bag based on the concept of the present invention is described. According to... Figure 1-3 The package can be made in the following order:
[0082] 1. Formed in one pass using a flying loom. Figure 3The main sheet shown has a multi-layered sheet structure. In this embodiment, the number of fabric layers in the bending areas AA', BB', CC', and DD' of the main sheet is less than the number of fabric layers in other areas. Preferably, the outer portions of CC' and DD' are further provided with bending areas EE' and FF' parallel to them, and the edges of the main sheet on the outer sides of the bending areas EE' and FF' can be used for sewing zippers. The bending areas EE' and FF' facilitate easy operation of the zipper by the user.
[0083] 2. Trim the loose threads at the top and bottom of the main sheet.
[0084] 3. Bend the main body sheet along AA', BB', A'B', and AB' respectively to make A'C' fit together. Figure 3 The upper part of the U1U2 section, AC fits. Figure 3 The lower part of the U1U2 section, B'D' fits. Figure 3 The upper part of the U3U4 section, BD bonding. Figure 3 The lower section of the U3U4 part forms the initial shape of the bag from the main sheet; the main sheet is bent along CC' and DD' to form the upper edge of the bag, thereby bending the main sheet into the predetermined shape of the bag.
[0085] 4. Sew together the adjacent edges of the main body sheet to form a bag with a predetermined shape. The stitches are made along the paths defined by U1, U2, U3, and U4.
[0086] Optionally, after the pickling step, the main sheet is ironed, which makes the nylon hot melt yarn bond more firmly with the marine yarn, further maintaining the shape of the main sheet.
[0087] When setting patterns on the main sheet material, for example, setting... Figure 3 When the grid pattern is shown, it can be Figure 3 The main sheet shown is placed in the groove of a marked measuring plate and then ironed. By ironing different parts of the main sheet, the pattern is aligned with and shaped according to the marks on the measuring plate. After shaping in this way, the pattern at different locations on the bent main sheet can be as shown... Figure 1 The smooth and continuous display shown avoids the extra cutting and other processes required in the past to achieve continuous patterns.
[0088] For the handle part 1 of the woven bag, it can be made in the following way:
[0089] A woven tape 10 is provided, which is woven in one step using flyweave technology and fixed to a bag. The woven tape 10 has a multi-layer structure and is configured such that the number of fabric layers in its middle region 11 along its longitudinal center line is less than the number of fabric layers in other locations, thereby enabling the woven tape 10 to be folded along its longitudinal center line to form a gripping part of the woven bag.
[0090] for Figure 11-13 The woven bag shown, and Figure 1-3 The only difference in the manufacturing methods of the bags shown is the bending method. The following explanation will only focus on these differences. (The explanation will proceed along...) Figure 13 Fold KK' and GG' by 90°, then bend the sheet 90° along the line containing H'J' and HJ so that G'H' fits I'H', K'J' fits I'J', GH fits IH, and KJ fits IJ. Then sew the folded areas together to form... Figure 11 , 12 The main body of the woven bag shown.
[0091] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.
Claims
1. A woven bag, characterized in that, The woven bag includes: The main body comprises a main sheet woven by a flying loom. The main sheet is configured to be directly sewn into a predetermined shape of the woven bag after being picked, bent, and folded. The predetermined shape includes a base of the woven bag and a top opposite the base. The woven bag has a height extending from the base to the top in the height direction and a length extending in the length direction. The main sheet includes a multi-layer sheet structure and a first bending region extending along a portion of the length of the bag and a second bending region extending along a portion of the height of the bag. The first bending region and the second bending region are formed by removing one or more fabrics, such that the number of fabric layers in the first bending region and the second bending region of the main sheet is less than the number of fabric layers in the main sheet outside the first bending region and the second bending region.
2. The woven bag as described in claim 1, characterized in that, The main sheet is a sheet-like fabric woven from nylon hot melt yarn and marine yarn and having a predetermined shape.
3. The woven bag as described in claim 2, characterized in that, The fineness T of the marine yarn d1 For: 120D≤T d1 ≤180D.
4. The woven bag as described in claim 3, characterized in that, The twist T of the marine yarn is: 32F≤T≤40F.
5. The woven bag as described in claim 4, characterized in that, The marine yarn has 3, 4, or 5 plies, and the nylon hot melt yarn has 2 plies, with a fineness T. d2 For: 80D≤T d2 ≤110D.
6. The woven bag as described in claim 2, characterized in that, The diameter d of the nylon hot melt wire is: 0.12mm≤d≤0.18mm.
7. The woven bag as described in claim 6, characterized in that, The fineness T of the marine yarn d1 The nylon hot melt yarn has a denier of 150D, a ply count of 4, and a twist T of 36F; and the fineness T of the nylon hot melt yarn is... d2 It is either 90D or 100D.
8. The woven bag as described in claim 1, characterized in that, The main sheet is configured to form additional bending areas extending along the width or height direction of the package.
9. The woven bag as described in claim 1, characterized in that, Another portion of the first or second bending region is woven using a trough wave process, causing the main sheet to bulge outwards toward the outside of the package in the other portion of the first or second bending region.
10. The woven bag as described in claim 1, characterized in that, The edges of the main sheet have rolled edges.
11. The woven bag as described in claim 1, characterized in that, The woven bag also includes a handle for the bag and is a multi-layered sheet-like woven strip, wherein the number of layers of fabric in the middle region of the woven strip along its longitudinal center line is less than the number of layers in other locations, thereby allowing the woven strip to be folded in the middle region along its longitudinal center line to form the gripping part of the handle.
12. The woven bag as described in claim 1, characterized in that, The woven bag also includes a fixing strap located on the outer side of the base, the fixing strap having a stiffness greater than that of the main sheet.
13. A method for manufacturing woven bags using flyknitting technology, characterized in that, The method includes the following steps: A main sheet is formed by knitting a woven bag in one pass using a flying loom, constituting the main body of the woven bag having a predetermined shape, the predetermined shape including a base of the woven bag and a top opposite the base, the woven bag having a height extending from the base to the top in the height direction and a length extending in the length direction, wherein the main sheet has a multi-layer sheet structure and a first folded region extending along a portion of the length of the bag and a second folded region extending along a portion of the height of the bag, wherein the first folded region and the second folded region are formed by removing one or more threads, such that the number of fabric layers in the main sheet is less than the number of fabric layers outside the first folded region and the second folded region; The main body sheet is bent according to the predetermined shape of the woven bag; and The adjacent edges of the main body sheet are sewn together to form the woven bag with a predetermined shape.
14. The method as described in claim 13, characterized in that, The method further includes: Provocation; and After the pickling step, the main body sheet is ironed to set its shape.
15. The method as described in claim 14, characterized in that, The main sheet has a pattern on its surface; the method further includes ironing the main sheet after the picking step to adjust and shape the pattern.
16. The method as described in claim 13, characterized in that, The method further includes: A woven tape is provided that is woven in one step using flyknitting technology and fixed to the woven bag, wherein the woven tape has a multi-layer structure and is configured such that the number of fabric layers in its middle region along its longitudinal center line is less than the number of fabric layers in other locations, thereby enabling the woven tape to be folded along its longitudinal center line to form a gripping portion of the woven bag.
17. The method as described in claim 13, characterized in that, The method further includes: By weaving the first and second bending areas using a single-sided process, the main sheet material smoothly transitions between the first and second bending areas to surfaces with different orientations.
Citation Information
Patent Citations
Knitted bag
CN106037194A
Woven bag
CN212426346U