CN115216880B - Method for forming weft-knitted fabric with thickness changing by using flat knitting machine and weft-knitted fabric - Google Patents

Method for forming weft-knitted fabric with thickness changing by using flat knitting machine and weft-knitted fabric Download PDF

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Publication number
CN115216880B
CN115216880B CN202110411665.1A CN202110411665A CN115216880B CN 115216880 B CN115216880 B CN 115216880B CN 202110411665 A CN202110411665 A CN 202110411665A CN 115216880 B CN115216880 B CN 115216880B
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Prior art keywords
fabric
knitting machine
flat knitting
yarn
basic
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CN115216880A (en
Inventor
李志强
施瑞雯
陈柏均
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Pai Lung Machinery Mill Co Ltd
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Pai Lung Machinery Mill Co Ltd
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B1/00Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10Patterned fabrics or articles
    • D04B1/102Patterned fabrics or articles with stitch pattern
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B1/00Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Knitting Of Fabric (AREA)

Abstract

A method for forming weft knitting fabric with thickness variation by a flat knitting machine and weft knitting fabric, the method is implemented in at least one knitting process of the weft knitting fabric, a basic structure is knitted by at least one of two needle beds on the flat knitting machine by the flat knitting machine, then a three-dimensional structure connected with the basic structure is knitted by the two needle beds on the flat knitting machine, the thickness of the three-dimensional structure is larger than that of the basic structure, the three-dimensional structure comprises two surface layer parts and a supporting part connected with the two surface layer parts and positioned between the two surface layer parts, wherein the supporting part is not positioned at the joint of the three-dimensional structure and the basic structure.

Description

Method for forming weft-knitted fabric with thickness changing by using flat knitting machine and weft-knitted fabric
Technical Field
The present invention relates to a method for knitting a fabric with thickness variation and a fabric thereof, and more particularly to a method for knitting a weft-knitted fabric with thickness variation by a flat knitting machine and a weft-knitted fabric thereof.
Background
Although three-dimensional fabrics have long been known, the three-dimensional fabrics have been knitted independently, even though techniques have been derived to produce thickness variations in the three-dimensional fabrics, as disclosed in CN102978823 a. Once the cloth design has the thick pad part formed by the three-dimensional fabric and the cloth surface part formed by the common knitted fabric, the three-dimensional fabric and the common knitted fabric are respectively knitted, and then are assembled by tailor splicing or using chemical glue. However, the seam allowance is formed in a tailor-made seam, which greatly reduces the comfort of the clothing. In addition, because thick padded garments are commonly used as intimate apparel, the resulting sultry may produce a qualitative change in the chemical adhesive that affects the skin of the wearer. Furthermore, chemical adhesives are artifacts and excessive use can also have environmental impact.
Disclosure of Invention
The main purpose of the invention is to solve the problem that the conventional weft-knitted fabric is derived from the fact that the three-dimensional structure cannot be produced by integral knitting and the post-processing is required.
To achieve the above object, the present invention provides a method for forming weft knitting fabric with varying thickness by a flat knitting machine, comprising the steps of:
driving the flat knitting machine to knit a basic stitch with at least one of two needle beds on the flat knitting machine, the basic stitch being a single layer fabric or a double layer fabric; and
Controlling the two needle beds on the flat knitting machine to knit a three-dimensional tissue connected with the basic tissue, wherein the thickness of the three-dimensional tissue is larger than that of the basic tissue, and the three-dimensional tissue comprises two surface layer parts and a supporting part connected with the two surface layer parts and positioned between the two surface layer parts, wherein the supporting part is not positioned at the joint of the three-dimensional tissue and the basic tissue.
In one embodiment, the flat knitting machine is controlled to suspend feeding of a support yarn at the junction of the solid stitch and the base stitch, the support yarn being fed to form the support portion after knitting the plurality of needles in the two face portions.
In one embodiment, the flat knitting machine drives the two teeth on the two needle beds to move to change the size of a nozzle of the flat knitting machine during the process of knitting the supporting portion, so that the height of the supporting portion is not a constant value.
In one embodiment, when the basic weave is the double layer fabric, the flat knitting machine is used for knitting with hanging yarn or turning yarn to enable two cloth surfaces of the double layer fabric to be closely attached to each other.
In one embodiment, when the basic structure is the double-layer fabric, the flat knitting machine feeds a cross-linking yarn, so that two cloth surfaces of the double-layer fabric are closely attached to each other under the action of the cross-linking yarn, and the cross-linking yarn has no supporting capability.
In addition to the foregoing, the present invention further provides a weft knit fabric having a thickness variation, comprising at least one base structure and at least one solid structure connected to the base structure. The basic tissue is a single-layer fabric or a double-layer fabric, the thickness of the three-dimensional tissue is larger than that of the basic tissue, the three-dimensional tissue comprises two surface layer parts and a supporting part connected with the two surface layer parts and positioned between the two surface layer parts, and the supporting part is not positioned at the joint of the three-dimensional tissue and the basic tissue.
In one embodiment, the support portion is formed from at least one support yarn.
In one embodiment, the height of the support portion is not constant.
Compared with the prior art, the invention has the following characteristics: the weft knitting fabric has the basic structure and the three-dimensional structure during knitting, and the thickness change is generated through the three-dimensional structure, so that the conventional post-processing and sticking three-dimensional objects are omitted. Furthermore, the position of the weft knitting fabric forming the three-dimensional structure is not limited, and can be adjusted according to design.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of a weft knitted fabric according to the present invention.
Fig. 2 is a schematic diagram of a weft knitting machine for knitting weft-knitted fabric.
Fig. 3 is a schematic flow chart of the method of the present invention.
Fig. 4 is a schematic structural view of a second embodiment of a weft knitted fabric according to the present invention.
Fig. 5 is a schematic structural view of a third embodiment of a weft knitted fabric according to the present invention.
FIG. 6 is a schematic view of a nozzle of a weft knitting machine for knitting weft knitted fabric.
Fig. 7 is a schematic view of a structure of a flatbed knitting machine with a changeable nozzle.
Fig. 8 is a schematic structural view of a fourth embodiment of a weft knitted fabric according to the present invention.
Fig. 9 is a schematic plan view of a weft knit fabric of the present invention.
Detailed Description
The detailed description and the technical content of the invention are now described below with reference to the drawings:
Referring to fig. 1, the present application provides a weft knitting fabric 10 having a thickness variation, the weft knitting fabric 10 is knitted by a flat knitting machine 30 (shown in fig. 2), and the weft knitting fabric 10 includes at least one basic stitch 11 and at least one solid stitch 12. The basic weave 11 is a general weave without support, and specifically, the basic weave 11 may be a single-layer weave or a double-layer weave, and the structures of the single-layer weave and the double-layer weave are already common knowledge of those skilled in the art, and will not be described herein. On the other hand, the three-dimensional structure 12 and the basic structure 11 are integrally knitted, that is, the three-dimensional structure 12 is not connected by splicing or the like after the basic structure 11 is knitted. The thickness of the three-dimensional structure 12 is greater than the thickness of the base structure 11, so that a thickness variation can be seen from a side view of the weft knit fabric 10 (as seen in fig. 1). It should be understood that the thickness variation referred to in the present application does not refer to the thickness of the laminate of yarns, but rather to the variation resulting from side viewing. In addition, the three-dimensional tissue 12 comprises two facing portions 121 and 122 and a supporting portion 123 connected to the two facing portions 121 and 122 and located between the two facing portions 121 and 122, wherein the supporting portion 123 is not present at the junction of the three-dimensional tissue 12 and the basic tissue 11. Furthermore, to form the thickness of the three-dimensional structure 12, the three-dimensional structure 12 is implemented with at least one support yarn 124, and the support yarn 124 deforms when at least one of the two facing portions 121, 122 is pressed. The three-dimensional structure 12 can be considered as a thick pad formed directly on the weft knit fabric 10, so the weft knit fabric 10 disclosed in the present application can be used as a chest pad in women's clothing or a cushion pad on athletic clothing.
Referring to fig. 1-3, in addition to the foregoing, the present invention also provides a method 20, wherein the method 20 is to knit the weft knit fabric 10 with the flat knitting machine 30. The method 20 comprises the steps of:
step 21: driving the flat knitting machine 30 to knit the basic stitch 11 with at least one of the two needle beds 31, 32 on the flat knitting machine 30; and
Step 22: the two needle beds 31, 32 on the flat knitting machine 30 are controlled to knit the three-dimensional tissue 12, the three-dimensional tissue 12 has a thickness larger than that of the basic tissue 11, the three-dimensional tissue 12 comprises the two facing portions 121, 122 and the supporting portion 123, wherein the supporting portion 123 is not present at the junction of the three-dimensional tissue 12 and the basic tissue 11.
The method 20 is described herein after with respect to the base structure 11 as the single layer fabric, and it is assumed that the flat knitting machine 30 is ready to perform knitting of the base structure 11 (i.e., the step 21). The flat knitting machine 30 performs knitting of the basic stitch 11 by driving one of the two needle beds 31, 32 with a head 33 on the flat knitting machine 30 based on the setting of the knitting program. When knitting the three-dimensional structure 12, the head 33 drives the two needle beds 31, 32 to knit the two face layer portions 121, 122, at which time one of the two face layer portions 121, 122 may be formed by continuous knitting of the basic structure 11, and the other of the two face layer portions 121, 122 may be formed by knitting only at this point, wherein the flat knitting machine 30 is set to connect one of the face layer portions 121 with the basic structure 11 by a stitch (transfer) or a hook (tuck) technique. Further, the flat knitting machine 30 is controlled to suspend feeding of the supporting yarn 124 at the junction (13 as indicated in the drawing) of the solid structure 12 and the basic structure 11, and the supporting yarn 124 is fed after knitting the two facing portions 121, 122 for several stitches, to form the supporting portion 123. Also, the weft knitting fabric 10 of the present invention has a bag-like structure at the junction (13 as shown in the figure) of the three-dimensional structure 12 and the basic structure 11. In one embodiment, the point in time for feeding the support yarn 124 is after knitting the plurality of needles on the two face layer portions 121, 122. The number of waiting stitches can be adjusted based on the characteristics of the fabric. After the support yarn 124 is knitted, the support portion 123 is formed between the two facing portions 121 and 122, and the support portion 123 makes the two facing portions 121 and 122 not closely contact each other, so that the three-dimensional structure 12 is visually thicker than the basic structure 11. It should be understood that the method of the present invention is not limited to the completion of knitting the three-dimensional structure 12, and the weft knitting fabric 10 may be designed according to a pattern, and the basic structure 11 may be knitted again after the three-dimensional structure 12 is knitted, as shown in fig. 4.
Referring again to fig. 2-5, the method 20 is described hereinafter with respect to the base structure 11 as the double layer fabric, and it is also assumed that the flat knitting machine 30 is ready to perform knitting of the base structure 11 (i.e., step 21). The flat knitting machine 30 uses the machine head 33 to simultaneously drive the two needle beds 31 and 32 to knit the basic structure 11 based on the setting of the knitting process, so as to generate two cloth covers 111 and 112 mainly forming the double-layer structure, and the flat knitting machine 30 further uses the way of turning yarn knitting or hanging yarn knitting or additionally feeding a cross-linking yarn 113 to make the two cloth covers 111 and 112 cross-link and cling to each other in the process of knitting the two cloth covers 111 and 112. The two facing portions 121, 122 may be continuations of the two fabric surfaces 111, 112 when the weave is knitted into the three-dimensional fabric 12, and it should be noted that the weave at the junction of the base fabric 11 to the three-dimensional fabric 12 (13 as shown in the figure) does not create any structure connecting the two facing portions 121, 122, in the art, that is, the support portion 123 is implemented as a hollow needle at the junction of the base fabric 11 and the three-dimensional fabric 12. Thereafter, the support yarn 124 is fed to participate in knitting, and knitting of the three-dimensional fabric 12 is performed, and knitting of the three-dimensional fabric 12 is not repeated as described above.
The thickness of the stitch 12 is determined by the length of the support yarn 124, and the length of the support yarn 124 during knitting is determined by the width of a nozzle 34 of the flat knitting machine 30 (as shown in fig. 2 and 6). It should be understood that the variation of the width of the spout 34 affects the forming size of the yarn loops, and that when the width of the spout 34 is large, the yarn loops woven will become larger, and that too large yarn loops will be difficult to form the cloth cover structure, so that the size of the spout 34 cannot be changed as in knitting, and the size of the loops of the base fabric 11 and the two cover parts 121, 122 should be considered when designing the thickness of the three-dimensional structure 12. Furthermore, if the width of the mouth 34 is changed during the knitting process by the flat knitting machine 30 without stopping the knitting, the problem that the thickness of the three-dimensional structure 12 is limited to a single width can be solved. The applicant has proposed a variable nozzle weft knitting machine structure during knitting, as disclosed in patent numbers TW202028555A, TW 202028557A, TW 202028558a, TW I707074. Referring to fig. 7, when the flat knitting machine 30 is controlled to knit the supporting portion 123 of the three-dimensional structure 12, the two top flaps 311, 321 on the two needle beds 31, 32 are driven to displace to change the size of the nozzle 34 of the flat knitting machine 30, and when the nozzle 34 is adjusted to a size according to the knitting requirement, the flat knitting machine 30 performs knitting on the supporting portion 123. As such, the height of the support portion 123 will no longer be constant, and the thickness of the solid tissue 12 will no longer be a single thickness and will vary, as shown in fig. 8.
Referring to fig. 9, the three-dimensional weave 12 of the weft knitting fabric 10 of the present invention is not limited to knitting positions, but knitting positions can be determined according to fabric design requirements.
[ Diagram-like symbols ]
10,........... Weft knitting fabric
11,........... Basic organization
111. 112
113,........... Crosslinked yarns
12,........... Three-dimensional tissue
121. 122
123,........... Support portion
124,........... Support yarn
13,............ Junction
20,........... Method
21. 22,......... Steps
30,........... Flatbed knitting machine
31. 32,......... Needle bed
311. The term "321. Tian tooth piece
33,........... Handpiece
34,............ Mouth opening

Claims (6)

1. A method of forming a weft knit fabric of varying thickness with a flat knitting machine, comprising the steps of:
Driving the flat knitting machine to knit a basic stitch with at least one of two needle beds on the flat knitting machine, the basic stitch being a single layer fabric or a double layer fabric; and
Controlling the two needle beds on the flat knitting machine to knit a three-dimensional structure connected with the basic structure, wherein the thickness of the three-dimensional structure is larger than that of the basic structure, the three-dimensional structure comprises two surface layer parts and a supporting part connected with the two surface layer parts and positioned between the two surface layer parts, the supporting part is formed by a supporting yarn, the thickness of the three-dimensional structure is determined by the length of the supporting yarn, the length of the supporting yarn in the knitting process is determined by the width of a mouth of the flat knitting machine, wherein the flat knitting machine is controlled to suspend feeding the supporting yarn at the joint of the three-dimensional structure and the basic structure, the supporting yarn is fed to form the supporting part after the two surface layer parts knit a plurality of needles, the supporting part is not positioned at the joint of the three-dimensional structure and the basic structure, and the supporting yarn is generated when at least one surface layer part of the two surface layer parts is pressed.
2. The method of forming a weft knit fabric having a thickness that varies with a flat knitting machine according to claim 1 wherein said flat knitting machine drives two teeth on said two needle beds to displace to vary the size of said nozzle opening of said flat knitting machine during knitting of said support portion such that the height of said support portion is not constant.
3. The method of forming a weft knit fabric having a varying thickness with a flat knitting machine according to claim 2 wherein when said basic weave is a double layer fabric, said flat knitting machine causes two fabric sides of said double layer fabric to abut each other with a hanging yarn knitting or a turning yarn knitting.
4. The method of forming a weft knit fabric having a varying thickness with a flat knitting machine according to claim 1 wherein when said basic weave is a double layer fabric, said flat knitting machine feeds a cross-linking yarn so that two fabric surfaces of said double layer fabric are brought into close contact with each other by said cross-linking yarn, said cross-linking yarn having no supporting ability.
5. A weft knit fabric having a thickness variation, comprising:
at least one basic structure, which is a single-layer fabric or a double-layer fabric; and
At least one solid tissue connected with the basic tissue, wherein the thickness of the solid tissue is larger than that of the basic tissue, the solid tissue comprises two surface layer parts and a supporting part connected with the two surface layer parts and positioned between the two surface layer parts, the supporting part is formed by at least one supporting yarn, and the supporting part is not arranged at the joint of the solid tissue and the basic tissue after the two surface layer parts are knitted with a plurality of needles at the feeding time point of the at least one supporting yarn.
6. Weft knit fabric with thickness variation according to claim 5, characterized in that the height of said supporting portions is not constant.
CN202110411665.1A 2021-04-16 2021-04-16 Method for forming weft-knitted fabric with thickness changing by using flat knitting machine and weft-knitted fabric Active CN115216880B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002020950A (en) * 2000-07-07 2002-01-23 Yookusu Kk Two-layer knitted fabric structure in inner wear
JP2002339206A (en) * 2001-05-16 2002-11-27 Delta Tooling Co Ltd Three-dimensional knitted fabric
JP2003013346A (en) * 2001-06-27 2003-01-15 Suminoe Textile Co Ltd Three-dimensional knitted fabric
JP2003293250A (en) * 2002-03-29 2003-10-15 Seiren Co Ltd Warp knit fabric having steric structure and method for knitting same
EP2474653A1 (en) * 2010-12-20 2012-07-11 Shima Seiki Mfg., Ltd Three-dimensional knitted fabric, method of knitting same, and supporter
JP2013087379A (en) * 2011-10-17 2013-05-13 Shima Seiki Mfg Ltd Method for knitting spacer fabric and spacer fabric
CN111433400A (en) * 2017-11-08 2020-07-17 耐克创新有限合伙公司 Spacer fabric
CN111501178A (en) * 2019-01-30 2020-08-07 佰龙机械厂股份有限公司 Method for weaving thickness-variable three-dimensional fabric by flat knitting machine
CN111705401A (en) * 2020-06-15 2020-09-25 江南大学 Transverse-knitted three-dimensional internal support structure fabric and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113195813B (en) * 2018-12-10 2023-01-24 耐克创新有限合伙公司 Knitting machine with adjustable needle bed and variable-thickness knitting members

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002020950A (en) * 2000-07-07 2002-01-23 Yookusu Kk Two-layer knitted fabric structure in inner wear
JP2002339206A (en) * 2001-05-16 2002-11-27 Delta Tooling Co Ltd Three-dimensional knitted fabric
JP2003013346A (en) * 2001-06-27 2003-01-15 Suminoe Textile Co Ltd Three-dimensional knitted fabric
JP2003293250A (en) * 2002-03-29 2003-10-15 Seiren Co Ltd Warp knit fabric having steric structure and method for knitting same
EP2474653A1 (en) * 2010-12-20 2012-07-11 Shima Seiki Mfg., Ltd Three-dimensional knitted fabric, method of knitting same, and supporter
JP2013087379A (en) * 2011-10-17 2013-05-13 Shima Seiki Mfg Ltd Method for knitting spacer fabric and spacer fabric
CN111433400A (en) * 2017-11-08 2020-07-17 耐克创新有限合伙公司 Spacer fabric
CN111501178A (en) * 2019-01-30 2020-08-07 佰龙机械厂股份有限公司 Method for weaving thickness-variable three-dimensional fabric by flat knitting machine
CN111705401A (en) * 2020-06-15 2020-09-25 江南大学 Transverse-knitted three-dimensional internal support structure fabric and preparation method thereof

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