CN112442789A

CN112442789A - Knitted fabric

Info

Publication number: CN112442789A
Application number: CN201910794659.1A
Authority: CN
Inventors: 王安军; 陆建林
Original assignee: Toray Sakai (nantong)
Current assignee: Toray Sakai (nantong)
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2021-03-05

Abstract

The invention discloses a knitted fabric which is a warp knitting object formed by nylon, terylene and spandex; the knitted fabric is knitted by adopting a warp knitting structure and is formed by knitting at least two guide bars; the pore area of the knitted fabric is 2000-12000 mu m²And the distance between two adjacent coils is 100-500 μm in the transverse direction and the longitudinal direction of the fabric; the knitted fabric has at least two parts with different color tones or different brightness. The spandex fibers are used for weaving, so that the fabric is stable in structure and not easy to loose, and the fabric is endowed with excellent elasticity, so that the fabric has a more compact effect and a more exquisite hand feeling; by controlling the pore area and the shape of the coils, the fabric has silky flexibility, smooth feeling and glutinous feeling, and has the delicate hand feeling like skin.

Description

Knitted fabric

Technical Field

The invention relates to a knitted fabric, in particular to a garment fabric with smooth, smooth and exquisite handfeel and fine stripes of different colors and fashionable appearance.

Background

Today, although the apparel industry has developed to a great degree, the pursuit of multi-functionalization of apparel has never been stopped. For example, underwear worn next to the skin is required to be soft, smooth (smooth), glutinous, and the like from the first when it is required to be covered with a sensitive skin to the present. The smoothness is an important index for measuring the roughness of the surface of the fabric, and generally, the smaller the distance between adjacent coils is, the tighter the coil arrangement is, the smaller the surface roughness of the fabric is, and the better the smoothness is. The waxy feeling is an important index for judging whether the fabric has a skin-like touch, and the better the compression elasticity (compression ratio work) in the thickness direction of the fabric is, the stronger the waxy feeling is. In addition to functionality, people are more and more interested in pursuing appearance effects of clothes, and do not meet the requirement of single color of the conventional fabric any more, and people are more and more interested in colorizing and fashioning the appearance of the clothes, in particular to the fabric of the clothes which is advocated for both functionalization and fashion.

At present, various kinds of clothing fabrics appear in the market. For example, a fine-gauge high-grade knitted elastic fabric disclosed in chinese patent CN202626493U is obtained by using a fine-gauge knitting machine in combination with a plain plaited stitch to obtain a fabric having a dense effect and a smooth hand, but the amount of the fine-gauge knitting machine held in the market is small, the knitting speed of the fine-gauge knitting machine is relatively slow, and the production efficiency is low. In addition, although the stitches obtained by fine-pitch knitting are densely arranged, the stitch structure of plain plating allows the face yarn and the back yarn to be nearly overlapped and close to each other, so that the compression elasticity in the thickness direction of the fabric is too small, and the sticky feeling is difficult to obtain. In addition, the weft-knitted plain stitch also has the problem of easy raveling.

For another example, in the clothing fabric disclosed in chinese patent CN103668691A, the face yarn is a blended yarn of milk protein fiber and modal fiber, the ground yarn is a covered yarn of nylon/spandex, and the plain plaited plaiting stitch is knitted, and the obtained fabric has good hygroscopicity, shape retention property, and elasticity, but since the blended yarn is a spun yarn, and has a certain twist degree, the smoothness of the yarn is weak, so that the smoothness of the fabric is greatly reduced, and the fineness of the covered yarn used as the ground yarn is large, so that the distance between adjacent loops is increased, and the smoothness of the fabric is further reduced; in addition, the problems of spandex exposure and uneven dyeing effect can occur when the covering yarn is used. The problem of easy raveling exists because the weft-knitted plain stitch is also the weft-knitted plain stitch.

Disclosure of Invention

In view of the above problems, the present invention aims to provide a knitted fabric with smooth, smooth and fine hand feeling and different colors of fine stripes as well as fashionable appearance, which has high mass production and is not easy to fall apart.

The technical solution of the invention is as follows: a knitted fabric is a warp knitting object formed by nylon, terylene and spandex; the knitted fabric is knitted by adopting a warp knitting structure and is formed by knitting at least two guide bars; the pore area of the knitted fabric is 2000-12000 mu m²And the distance between two adjacent coils is 100-500 μm in the transverse direction and the longitudinal direction of the fabric; the knitted fabric has at least two parts with different color tones or different brightness.

As a further optimization: the nylon and the terylene in the knitted fabric are both filaments, and the nylon and the terylene are combined into the nylon terylene composite filament by interlacing.

As a further optimization: the fineness of the nylon polyester composite filament is 33-111 dtex, and the fineness of the single filament is 0.5-2.0 dtex.

As a further optimization: the nylon polyester composite filament can be fully drawn yarn FDY or false twist textured yarn DTY.

As a further optimization: the nylon content in the knitted fabric is 50-80%.

As a further optimization: the spandex in the knitted fabric can be bare ammonia or spandex core-spun yarn.

As a further optimization: the fineness of the spandex is 22-78 dtex, and the content of the spandex in the fabric is not lower than 8%.

As a further optimization: the gram weight of the knitted fabric is 100-200 g per square meter.

As a further optimization: the distance between adjacent loops of the knitted fabric is 250-350 microns.

As a further optimization: the bending rigidity of the knitted fabric is 0.0005-0.0023N-cm²Per cm, surface roughness of 1.000-3.000 mu, and compression work of 0.050-0.150N cm/cm²。

Has the advantages that: in the invention, the spandex fiber is used for weaving, so that the fabric has excellent elasticity, better and compact cloth cover effect and better and finer hand feeling; in addition, the surface yarn is woven by adopting filament yarns formed by compounding nylon and terylene, and the fabric has general flexibility, smoothness and glutinous feeling of silk and is like delicate hand feeling of skin by controlling the pore area and the shape of coils of the fabric surface; the knitted fabric of the invention only dyes nylon during dyeing processing, and the terylene does not dye, so that two parts with different colors can be formed on the cloth surface, and the appearance effect of thin stripes with different colors is presented, and the single color is distinguished, so that the fabric has fashionable and beautiful appearance effect; in addition, the knitted fabric is knitted by adopting the warp knitting structure, so that the fabric is stable in structure and not easy to loose.

Drawings

FIG. 1 is a schematic surface view of a knitted fabric of the present invention; wherein x and y are central vertical lines of two adjacent wales of the fabric in the transverse direction respectively, and W is the distance between the wales of the two adjacent needles; m and n are respectively tangent lines of two adjacent coil rows in the longitudinal direction of the fabric, and H is the distance between the two adjacent coil rows.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.

Examples

In order to endow the fabric with good hygroscopicity, softness, certain strength and appearance effect, the invention considers to adopt nylon and terylene composite filament; in order to endow the fabric with good elasticity and obtain the compact feeling of the fabric, the invention considers that the elastic fiber is adopted for mixed weaving; spandex is preferred for weaving because elastic fibers such as PBT, PBT/PET, PTT/PET are much less elastic than spandex. The spandex can be bare ammonia or spandex core-spun yarn, and because the spandex core-spun yarn is easy to cause spandex exposure and cause the problems of uneven dyeing and the like, bare ammonia elastic fiber is preferably selected for weaving.

In the invention, when the pore area is too small, the pore area is 2000 μm smaller²In the meantime, the fabric is too dense, and the air permeability effect is not good; when the pore area is too large, the pore area is larger than 12000 mu m²In the meantime, the fabric is not dense enough and does not have a fine hand feeling. According to research and exploration, the invention sets the pore area of the fabric to be 2000-12000 mu m²In time, the air permeability effect and the fine hand feeling can be considered.

In the invention, from the view point of coil form, when the distance between adjacent coils is less than 100 μm, the surface roughness of the fabric is slightly small, and the smoothness is good, but the coil arrangement is too tight, the bending rigidity of the fabric is slightly large, and the flexibility of the fabric is poor; when the distance between adjacent coils is greater than 500 μm, although the flexibility of the fabric is improved, the coils are arranged too loosely, and the smoothness of the fabric is poor. Therefore, in the present invention, in order to achieve both the softness and the smoothness of the fabric, the distance between adjacent coils is set to 100 to 500 μm, preferably 250 to 350 μm.

In the invention, the fabric is knitted by adopting a warp knitting weave, and the fabric is formed by knitting at least two guide bars. Taking a warp-knitted fabric formed by two guide bars as an example, the fabric is divided into 4 layers from an outer layer to an inner layer, and the 4 layers are respectively a coil surface of a first guide bar, a coil surface of a second guide bar, an extension line surface of the second guide bar and an extension line surface of the first guide bar. Therefore, the knitted fabric has larger distance in the thickness direction, is thicker than the common weft knitting fabric, has larger compression ratio work and stronger glutinous feeling. In addition, due to the characteristics of the warp knitting structure, the wales are tightly connected through the extension lines and are not easy to fall apart, so that the stability of the fabric structure and the durability in use are ensured.

Generally, the finer the denier of the yarn used, the more flexible the fabric. In the invention, when the fineness of the used nylon polyester composite filament is less than 33dtex, the fabric is light in texture and has very excellent flexibility, but simultaneously, because the fineness is too thin, the distance between adjacent coils under the same condition is increased, the surface roughness of the fabric is increased, and the smoothness tend to be reduced; when the fineness of the nylon polyester composite filament is more than 111dtex, the arrangement of the coils is compact, the smooth feeling tends to be increased, the softness tends to be reduced, and the gram weight tends to be increased. Therefore, the fineness of the nylon polyester composite filament used in the present invention is preferably 33 to 111dtex, and more preferably 56 to 78 dtex. In addition, the smaller the filament number of the nylon polyester composite filament, the better the softness of the fabric, but when the filament number is less than 0.5dtex, the problem of cloth cover defects caused by filament breakage of the filaments can occur during weaving; when the filament number of the single filament is larger than 2.0dtex, the weaving passing performance is relatively good, but the fabric hand feeling tends to be reduced, namely the fabric surface becomes rough and not fine enough, and the weaving passing performance and the hand feeling of the fabric are integrated, so that the filament number of the nylon polyester composite filament used in the invention is preferably 0.5-2.0 dtex.

In the present invention, the form of the nylon-polyester composite filament yarn used is not particularly limited, and may be fully drawn yarn FDY or false twist yarn DTY, and is preferable in that FDY has a smooth surface and low bulkiness, and the surface roughness of the fabric can be reduced and the smoothness can be improved.

In the invention, considering the soft and smooth touch feeling, the moisture absorption and skin-friendly functions of the fabric and the appearance effects of different tones, when the nylon content in the fabric is lower than 50%, the terylene component in the surface composite filament is relatively more, and the moisture absorption and the soft and smooth feeling of the fabric have a descending trend; when the content of nylon in the fabric is higher than 80%, the polyester component in the surface composite filament is relatively less, and although the soft, smooth touch, moisture absorption and skin-friendly functions of the fabric can be ensured, the appearance effect of different colors presented by the fabric tends to be reduced, namely, the fine stripe effect of different colors in the fabric is not obvious enough, and the fashionable and beautiful appearance effect cannot be achieved. According to research and exploration, the content of nylon in the fabric is set to be 50-80%, and the hand feeling, functionality and appearance effect of the fabric can be considered.

In the invention, from the aspects of the weaving passing property of the spandex and the avoidance of defects, the fineness is preferably 22-78 dtex, and more preferably 22-56 dtex, so that the spandex content in the fabric cannot be lower than 8% through research and test in order to ensure the elasticity of the fabric, namely the free comfort of easy extension and easy recovery when the fabric is worn.

For the gram weight of the fabric, when the gram weight is too small, the requirements on weaving and after-finishing processing are higher, the cost is correspondingly increased, and the fabric is too light and thin and has possibly insufficient breaking strength; when the gram weight is too large, the fabric is relatively thick and heavy, and the wearing comfort is influenced when the fabric is used as underwear. Therefore, the gram weight of the fabric is preferably 100-200 g/square meter.

In addition, the fabric of the invention preferably has bending rigidity of 0.0005-0.0023N cm²A surface roughness of 1.000 to 3.000 mu per cm, a compression ratio of 0.050 to 0.150 N.cm/cm²。

The test method of each parameter related in the invention is as follows:

(1) pore area of the fabric

Preparing a sample: cutting sample cloth with the size of 20cm multiplied by 20cm and a flat surface from the fabric;

second, a cloth surface picture of the sample is taken under a digital microscope (KEYENCE corporation) with a lens of 50 times:

(a) the brightness of the sample is adjusted between 1/3-2/3 by rotating a brightness knob on the control plate. When the exposure rate is less than 1/3, the exposure rate is too low, the picture of the sample is too dim, and pores on the sample cannot be identified; above 2/3, the exposure was too high and the porosity on the sample was not recognized;

(b) the lens is adjusted to 50 times, and the definition of the sample is adjusted by rotating a focusing knob on the XY platform or the control board, so that the clear pore space on the sample is ensured. When the multiplying power of the lens is too small, the appearance area of the sample pore is too small, and the precision of the next brightness extraction pore area is influenced; when the lens multiplying power is too high, the total area of the shot sample picture is too small, the number of pores is small, and the actual distribution precision of the pore area is influenced;

(c) storing the picture, wherein the area of the fabric in the picture is about 3.6 multiplied by 10⁷μm²；

Thirdly, a brightness extraction method in the automatic area measurement function of VHX-2000/Ver2.35 software provided by KEYENCE company is used:

(a) clicking an automatic area measurement button;

(b) selecting a brightness extraction method, and extracting a brightness area graph of the sample photo;

(c) selecting a 'dark' option in the interface to obtain a pore map in the photo;

(d) adjusting a threshold value to enable the pore of the sample to be covered right, wherein the range of the threshold value is-80- + 80; the actual pore size of the sample cannot be exactly covered when the threshold is too small or too large, and the measured pore area is smaller than the actual area when the threshold is too small; when the pore size is too large, the measured pore area is larger than the actual area;

(e) and finally clicking the next step to obtain the area data of the sample pores, and storing the data. And the area of the sample pores (unit: mum) was recorded²)。

(2) Distance between adjacent coils

Preparing a sample: cutting sample cloth with a smooth surface and a size of 20cm multiplied by 20cm from the fabric;

secondly, taking a surface picture of the sample cloth under a 250-time lens of a digital microscope (manufactured by KEYENCE corporation);

selecting any vertical line coil, making a vertical line x in the middle of the vertical line coil, selecting a left vertical line coil and a right vertical line coil which are adjacent, making a vertical line y according to the same method, and measuring the distance between the two vertical lines. The 10 sets of data were taken and the average calculated as described above, which was the distance W between adjacent coils in the transverse direction.

Selecting any transverse coil, making a tangent m on the top of the transverse coil, selecting an upper transverse coil and a lower transverse coil which are adjacent, making a tangent n according to the same method, and measuring the distance between the two tangents. The 10 sets of data are taken and the average is calculated as the distance H between longitudinally adjacent coils.

(3) Gram weight

Using a disc sampler to cut 100cm²The cloth sample is weighed by 100, namely the gram weight (g/m)²)。

(4) Flexural rigidity

According to KES FB2 method. (KES Fabric stylists are those designed and manufactured by Ogawa Quadry, Chuanxian, university of Kyoto, Japan, where FB2 is a bending Performance tester.)

(5) Surface roughness

According to KES FB4 method. (KES Fabric stylists are those designed and manufactured by professor Chuanmian Quadrong, Kyoto university, Japan, where FB4 is a Friction and surface roughness tester.)

(6) Work of compression ratio

According to KES FB3 method. (KES Fabric stylists are those made by professor Chuanxianyongrou, Kyoto university, Japan, where FB3 is a compression and caliper tester.)

(7) Comprehensive evaluation

The perception evaluation is carried out by 20 persons, the knitted fabric is evaluated mainly from the aspects of elasticity, hand feeling, appearance and the like, wherein the elasticity comprises easy extensibility and easy recoverability; the hand feeling comprises softness, smoothness, glutinous feeling and the like of the fabric; the appearance mainly refers to the discrimination of different hues, the definition and the beauty degree of the whole stripes of the fabric, and the evaluation method comprises the following steps:

the hand feeling and the appearance are respectively used as a single item to be graded, the full score of each single item is set to be 5 points, corresponding grades (0-5 points) are given according to the achievement effect of each single item, and then the scores of the two items are accumulated to obtain a comprehensive grade, namely a total grade. If the total score exceeds 240 points, the comprehensive effect of the imitation cotton is regarded as excellent and is marked as excellent; the score of 180-240 points is regarded as good and marked as O; a total score below 180 points is considered as a difference and is noted as Δ.

The present invention will be further described with reference to examples and comparative examples.

Example 1

On an HKS4 tricot machine (machine No. E36, machine width 136 inches), 66dtex/46F (44dtex/34F nylon +22T/12F polyester) composite filament (made by asia tai chemical textile limited) was used as a first guide bar yarn, 22T ilabang elastic spandex (made by indovada) was used as a second guide bar yarn, a gray fabric was knitted by a double warp flat stitch, and the knitted fabric of the present invention was produced by scouring, dyeing, after finishing, and the like, specifically see table 1.

Wherein the refining: 2g/L of caustic soda, 2g/L of scouring agent, 80 ℃ multiplied by 20min, bath ratio of 1: 20; dyeing: 30min at 95 ℃, soaping and fixing color: 80 ℃ for 20 min.

Example 2

Knitting was performed with a warp flat knit, and the knitting fabric of the present invention was produced in the same manner as in example 1, specifically referring to table 1.

Example 3

The knitted fabric of the present invention was produced in the same manner as in example 1, except that 44T ilabang elastic spandex (manufactured by indovada) was used as a second guide bar yarn, and specifically, see table 1.

Example 4

Knitting was carried out with a warp flat knit, as in example 3, to obtain a knitted fabric of the present invention, as shown in Table 1.

Example 5

The knitted fabric of the present invention was produced in the same manner as in example 3 except that the knitted fabric of the present invention was knitted with a composite filament (made by Sutai Spinnings Co., Ltd.) of 122dtex/58F (78dtex/34F nylon +44dtex/24F polyester) as a first guide bar yarn, and specifically, see Table 1.

Example 6

The knitted fabric of the present invention was produced in the same manner as in example 1 except that 66dtex/136F (44dtex/100F nylon +22dtex/36F polyester) composite filament (manufactured by Sutai chemical Co., Ltd.) was used as the first guide bar yarn for knitting, and specifically, see Table 1.

Example 7

The knitted fabric of the present invention was produced in the same manner as in example 3 except that the knitted fabric of the present invention was knitted with a composite filament (made by Asia Tekko Sp Co., Ltd.) of 111dtex/58F (78dtex/34F Nylon +33dtex/24F Terylene) as the first guide bar yarn, and specifically, see Table 1.

Example 8

The knitted fabric of the present invention was produced in the same manner as in example 7 except that the knitted fabric of the present invention was knitted with the first guide bar yarn of the composite filament yarn (made by Yataihua textile Co., Ltd.) of 111dtex/58F (55.5dtex/34F nylon +55.5dtex/24F polyester), and specifically, see Table 1.

EXAMPLE 9

The knitted fabric of the present invention was produced in the same manner as in example 7, except that the knitted fabric of the present invention was knitted with a composite filament (100dtex/34F nylon +11T/24F polyester) of 111dtex/58F as a first guide bar yarn, and specifically, see Table 1.

Comparative example 1

Knitting was carried out on an HKS4 tricot machine (No. E28, machine width 136 inches) and the same as in example 1 was carried out to obtain a knitted fabric of the present invention, as shown in table 1.

Comparative example 2

Knitting was carried out on an HKS4 tricot machine (No. E32, machine width 136 inches) and the remainder of example 3 to produce a knitted fabric of the present invention, see in particular table 1.

Comparative example 3

Knitting was carried out on a RSE4 Raschel warp knitting machine (No. E32, machine width 136 inches) and the remainder of example 3 to produce a knitted fabric of the invention, see in particular Table 1.

Comparative example 4

The knitted fabric of the present invention was produced in the same manner as in example 1 except that 66dtex/48F polyester filament (manufactured by Rainbow Corp.) was used as the first guide bar for knitting with the yarn, and specifically, see Table 1.

Comparative example 5

The knitting fabric of the present invention was produced in the same manner as in example 1 except that 66dtex/48F nylon filament (manufactured by Liheng) was used as the first guide bar yarn, and specifically, see Table 1.

Table 1 comparison table of parameters

From table 1, the following conclusions are drawn:

(1) it can be seen from the example 2 and the example 1 that, under the same condition, the elasticity and the waxy feeling of the fabric with 7% of spandex content are better than those of the fabric with 9% of spandex content, and the comprehensive effect is better.

(2) As is clear from examples 3 and 4, the grammage under the same conditions is 177g/m²The fabric and the gram weight of the fabric are 203g/m²Compared with the fabric, the latter is thicker and heavier, and the comfort of the fabric is inferior to that of the former in the wearing process, so the comprehensive effect is inferior to that of the former.

(3) As is clear from examples 5 and 3, the fabric formed by knitting the composite filaments having a total fineness of 122dtex and a single-filament fineness of 2.1dtex has a larger total fineness and single-filament fineness, and is inferior to the latter in softness and smoothness and a larger weight than the latter, and affects the comfort of wearing, compared with the fabric formed by knitting the composite filaments having a fineness of 66dtex and a single-filament fineness of 1.4 dtex.

(4) As is clear from example 6 and example 1, under the same conditions, the fabric knitted with the conjugate filament having a single filament fineness of 0.49dtex is less different from the fabric knitted with the conjugate filament having a single filament fineness of 1.4dtex in softness, smoothness and waxy feeling, but the former is more likely to break during actual knitting and the knitting passability is inferior to the latter, so the overall effect is inferior to the latter.

(5) It can be seen from comparative example 8 and example 7 that, under the same conditions, the fabric with 45% nylon content has lower nylon content, higher polyester content, and inferior softness, smoothness and other properties to those of the fabric with 63% nylon content, and the former has inferior effect of different color combination after nylon dyeing, so the comprehensive effect is inferior to that of the latter.

(6) It can be seen from comparative example 9 and example 7 that, under the same conditions, the fabric with the nylon content of 81% has higher nylon content, relatively less terylene content, better softness and smoothness, but the effect of different color combinations of the former is not beautiful enough after the nylon is dyed, so the comprehensive effect is not better than that of the latter.

(7) As can be seen from comparative example 1 and example 1, the pore area is larger than 12200 μm under the same conditions²The surface fabric and the pore area of the fabric are 5000 mu m²Compared with the fabric, the fabric has larger pores, less dense cloth surface, and inferior softness, smoothness and the like to the fabric of the latter, so the comprehensive effect is inferior to that of the latter.

(8) As can be seen from comparative example 2 and example 3, under the same conditions, the fabric having a distance of 510 μm between two adjacent coils in the lateral direction has a larger distance of the coils in the lateral direction, less dense fabric surface, and inferior softness, smoothness and the like to those of the fabric having a distance of 300 μm between two adjacent coils in the lateral direction, and therefore the overall effect is inferior to that of the latter.

(9) As can be seen from comparative example 3 and example 3, under the same conditions, the fabric having a distance between two longitudinally adjacent coils of 520 μm had a larger longitudinal coil distance, a less dense fabric surface, and inferior softness, smoothness and the like to the latter, compared to the fabric having a distance between two longitudinally adjacent coils of 270 μm, and therefore the overall effect was inferior to the latter.

(10) As can be seen from comparative example 4 and example 1, the fabric knitted with polyester and spandex (without nylon) under the same conditions has no nylon, inferior softness, smoothness and the like compared with the fabric knitted with polyester/nylon composite filament and spandex, and the fabric dyed with disperse dye has poor comprehensive effect because the spandex is easy to stain and the appearance is not beautiful enough because the fabric has only one color.

(11) As can be seen from comparative example 5 and example 1, in the same conditions, compared with the fabric woven by using the polyester/nylon composite filament and spandex, the fabric woven by using nylon and spandex (without polyester) does not contain polyester, and although the fabric has better performances such as softness, smoothness, waxy feeling and the like, the fabric can avoid the problem of contamination of spandex after dyeing processing, but the fabric surface of the fabric only presents single color tone, and the fashionable and beautiful appearance effect can not be realized, so the comprehensive effect of the fabric is poorer.

Claims

1. A knitted fabric is characterized in thatIn the following steps: the knitted fabric is a warp knitting object formed by nylon, terylene and spandex; the knitted fabric is knitted by adopting a warp knitting structure and is formed by knitting at least two guide bars; the pore area of the knitted fabric is 2000-12000 mu m²And the distance between two adjacent coils is 100-500 μm in the transverse direction and the longitudinal direction of the fabric; the knitted fabric has at least two parts with different color tones or different brightness.

2. The knitted fabric according to claim 1, wherein: the nylon and the terylene in the knitted fabric are both filaments, and the nylon and the terylene are combined into the nylon terylene composite filament by interlacing.

3. The knitted fabric according to claim 2, wherein: the fineness of the nylon polyester composite filament is 33-111 dtex, and the fineness of the single filament is 0.5-2.0 dtex.

4. The knitted fabric according to claim 2, wherein: the nylon polyester composite filament can be fully drawn yarn FDY or false twist textured yarn DTY.

5. The knitted fabric according to claim 1, wherein: the nylon content in the knitted fabric is 50-80%.

6. The knitted fabric according to claim 1, wherein: the spandex in the knitted fabric can be bare ammonia or spandex core-spun yarn.

7. The knitted fabric according to claim 6, wherein: the fineness of the spandex is 22-78 dtex, and the content of the spandex in the fabric is not lower than 8%.

8. The knitted fabric according to claim 1, wherein: the gram weight of the knitted fabric is 100-200 g per square meter.

9. The knitted fabric according to claim 1, wherein: the distance between adjacent loops of the knitted fabric is 250-350 microns.

10. The knitted fabric according to claim 1, wherein: the bending rigidity of the knitted fabric is 0.0005-0.0023N-cm²Per cm, surface roughness of 1.000-3.000 mu, and compression work of 0.050-0.150N cm/cm²。