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Knitting method for warp-knitted spacer fabric with different thicknesses

A technology of warp-knitting spacer fabrics and fabrics, which is applied in warp knitting, knitting, textiles and papermaking, and can solve problems such as inability to produce free-form objects

Inactive Publication Date: 2016-12-07
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Free-form stuffed textile objects can be used in a variety of applications, from two-dimensional to three-dimensional, but all have the disadvantage that the object will tilt outward due to internal air pressure and material flexibility, while woven and warp-knitted fabrics This does not happen, but in warp knitting, the spacer yarns act as spacers and reinforcements at the same time, which means that no free-form objects can be produced

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Knitting method for warp-knitted spacer fabric with different thicknesses
  • Knitting method for warp-knitted spacer fabric with different thicknesses
  • Knitting method for warp-knitted spacer fabric with different thicknesses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Concave-convex effect formed laterally

[0039] On the E22 double-needle bed warp knitting machine, six bars are used for knitting, and the distance between the knockout plates is 16mm. The fabric structure, yarn threading and warp let-off are shown in Table 1:

[0040] Table 1

[0041]

[0042]When the distance between the stripping plate is 16mm, the spacer yarn of GB3 has 2 rows of normal knits on the front and rear needle beds, and the let-off amount during knitting is 17327mm / rack, but at this time, the spacer yarns of GB4 are on the same front and rear needle beds. 2. When knitting in rows, the let-off amount is greater than the normal let-off amount of 24000mm / rack. Both GB3 and GB4 have 10 rows of missing pads, that is, the 10 rows, the spacer yarns do not connect the fabrics of the front and rear needle beds, but in order to achieve the thickness of the connecting yarn area of ​​GB4 greater than the thickness of the connecting yarn area of ​​GB3,...

Embodiment 2

[0043] Example 2: Concave-convex effect is formed vertically

[0044] Five bars were used to knit on the E18 double-needle bed warp knitting machine, and the distance between the knockout plates was 16mm. The fabric texture, yarn threading and warp let-off are shown in Table 2:

[0045] Table 2

[0046]

[0047] When the distance between the stripping plate is 30mm, the spacer yarn of GB3 has 2 rows of normal loops on the front and rear needle beds, and the let-off amount when the loops are formed is 31679mm / rack, and the let-off amount when 8 rows are missing pads is 29341mm / rack rack, the warp let-off of spacer wires in the first 200 rows remains unchanged. The let-off of the last 200 rows changes, the let-off of 2 rows is 42000mm / rack, and the let-off of 8 rows is 40000mm / rack. Finally, after the surface material is compounded and filled on the surface of the fabric, the thickness of the last 200 rows is greater than that of the first 200 rows, such as Figure 5-1 , ...

Embodiment 3

[0048] Example 3: Simultaneous formation of concave and convex effects horizontally and vertically

[0049] On the E22 double-needle bed warp knitting machine, six bars are used for knitting, and the distance between the knockout plates is 30 mm. The fabric structure, yarn threading and warp let-off are shown in Table 3:

[0050] table 3

[0051]

[0052]

[0053] When the distance between the stripping plate is 30mm, the spacer yarn of GB3 has 2 rows of normal loops on the front and rear needle beds, and the let-off amount when forming the loops is 17327mm / rack, and the let-off amount when there are 8 rows of missing pads is 6000mm / rack. Rack, the warp let-off of spacer wires in the first 100 rows remains unchanged. The warp let-off of 2 rows of GB4 during normal loop formation is changed to 24000mm / rack, the warp let-off of 8 rows when the pad is missing is changed to 9000mm / rack, and the warp let-off of the first 100 rows remains unchanged. GB3 and GB4 change the wa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a knitting method for a warp-knitted spacer fabric with different thicknesses. The warp-knitted spacer fabric is knitted by adopting six guide bars on a double-needle bar warp knitting machine, and the knitting method is characterized by comprising the following steps: (1) penetrating an upper surface layer yarn into guide bars GB1 and GB2, penetrating a lower surface layer yarn into guide bars GB5 and GB6, and penetrating a spacer yarn into guide bars GB3 and GB4, wherein the upper surface layer of the fabric is knitted by the guide bars GB1 and GB2, the lower surface layer of the fabric is knitted by the guide bars GB5 and GB6, and the spacer yarn is knitted by the guide bars GB3 and GB4; (2) when the thickness is changed in the transverse direction, penetrating the yarn by the guide bars GB3 and GB4 complementarily, wherein the yarn penetrating amounts of the guide bars GB3 and GB4 are equal, the guide bar GB3 penetrates the yarn first and then is spaced, and the guide bar GB4 is spaced first and then penetrates the yarn; the warp feeding amount of the guide bar GB3 is set to be smaller than that of the guide bar GB4; (3) when the thickness is changed in the longitudinal direction, setting the set warp feeding amount of part transverse area in the longitudinal row of the guide bar GB3 or the guide bar GB4 to be great, and setting the set warp feeding amount of part transverse area in the longitudinal row of the guide bar GB3 or the guide bar GB4 to be small. According to the knitting method for the warp-knitted spacer fabric with different thicknesses, the transverse cross section and the longitudinal cross section of the fabric can have different thicknesses by controlling the yarn penetrating amount and the warp feeding amount.

Description

technical field [0001] The invention relates to a weaving method of warp-knitted spacer fabrics with different thicknesses, in particular to a weaving method of three-dimensional three-dimensional textiles with surface concave-convex effects. Background technique [0002] The double-needle-bed warp-knitted spacer fabric is a three-dimensional warp-knitted fabric composed of two independent surface fabrics and a spacer yarn in the middle for connection and support. It is a conventional type of double-needle-bed Raschel machine. The machine usually uses a latch needle, and the distance between the knockout plates can be adjusted to determine the distance between the outer two layers, ie the thickness of the three-dimensional textile. The thickness of the spacer fabric has a large selection range, generally 2-60mm; in order to achieve some special purposes, the thickness can be increased to 150mm, or even more. [0003] As people gradually have higher requirements for textiles...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D04B21/08D06N3/00D06N3/12
CPCD04B21/08D06N3/0009D06N3/128D10B2331/04
Inventor 陈晴蒋高明缪旭红马丕波万爱兰殷芮
Owner JIANGNAN UNIV
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