阅读说明：本技术 一种仿机织风格的针织物 (Knitted fabric with weaving-imitated style ) 是由 瞿文琳 张晴 于 2019-08-26 设计创作，主要内容包括：本发明公开了一种仿机织风格的针织物。该针织物包括纱线A和纱线B,其中纱线A具有15T/m以下的残留扭矩,且其在针织物中含量为50～90重量%；纱线B的总纤度和编织线长满足如下关系式：0.10<纱线B的总纤度(D)/线长(mm/100个线圈)<0.80。本发明的针织物不但具有优越的机织物外观,而且具有与机织物相媲美的骨感、尺寸稳定性以及低通气性。(The invention discloses a knitted fabric with a weaving-like style. The knitted fabric comprises a yarn A and a yarn B, wherein the yarn A has a residual torque of below 15T/m and is contained in the knitted fabric by 50-90 wt%; the total fineness of the yarn B and the length of the weaving thread satisfy the following relational expression: 0.10< total denier of yarn B (D)/thread length (mm/100 loops) < 0.80. The knitted fabric of the present invention has not only an excellent woven fabric appearance but also a bone feeling, dimensional stability and low air permeability comparable to those of woven fabrics.)

1. A knitted fabric imitating a weaving style comprises a yarn A and a yarn B, and is characterized in that: the yarn A has a residual torque of 15T/m or less and is contained in the knitted fabric in an amount of 50 to 90 wt%; the total titer and the knitting thread length of the yarn B satisfy the following relational expression:

0.10< total denier of yarn B/thread length (mm/100 loops) < 0.80.

2. The woven style imitation knit fabric of claim 1 further characterized by: a length of L1 when the knitted fabric is stretched to a non-stretched state, and lengths LA and LB when a load of 0.2 g/denier is applied to each of the yarn a and the yarn B separated from the knitted fabric in a free and tensionless state, wherein L1, LA and LB satisfy the following relational expressions:

2.0<LA/L1<5.0，

1.0<LB/L1<3.0，

LA/LB>1.2。

3. the woven-style imitation knitted fabric of claim 1 or 2, characterized in that: the total denier of the yarn B is 30-120.

4. The woven-style imitation knitted fabric of claim 1 or 2, characterized in that: at least 1 path of the knitting motion of the yarn B on one side of the knitted fabric is composed of loop formation and non-loop formation.

5. The woven-style imitation knitted fabric of claim 1 or 2, characterized in that: on the surface of the knitted fabric, the coverage rate of the yarn A is 30% -80%.

Technical Field

The present invention relates to a knitted fabric having a woven fabric appearance, and having a bone feeling, dimensional stability and low air permeability comparable to those of woven fabrics.

Background

With the development of the times and the change of fashion trends, people can not only consider the hand feeling and the performance of the fabric but also consider the appearance of the fabric when pursuing fashion. Among them, knitted fabrics are characterized by softness, air permeability, and good elasticity, but when used as coats or pants, they have problems such as insufficient bone feeling, poor dimensional stability, and poor wind resistance (too high air permeability).

In order to overcome the above problems, many people in the market have studied the knitted fabric of the imitation weaving style. For example, chinese patent document CN204325675U discloses a polyester-cotton interwoven weft-knitted concave-convex woven fabric, wherein one path of the fabric is fed with polyester low stretch yarns and high shrinkage polyester filaments simultaneously, the other path of the fabric is fed with cotton yarns, the concave-convex effect is achieved by the thermal shrinkage difference of the fibers, the high shrinkage polyester is used in a ground yarn region, the density is greatly improved after shrinkage, the air permeability is reduced, the extensibility, the windproof performance and the dimensional stability are controlled to be improved, but the fabric has concave-convex difference, and the problem of poor yarn hooking is possibly caused.

In addition, in order to improve dyeing effect, smoothness of cloth surface and hand feeling, for example, chinese patent document CN102704087A discloses a torqueless polyester false twist textured yarn suitable for high-speed weaving and a preparation method thereof, the false twist textured yarn is composed of two parts of S twist formed by clockwise false twist texturing and Z twist formed by counterclockwise false twist texturing, the product bundling property is good, the yarn is suitable for high-speed weaving, the cloth surface is smooth and wrinkle-free and is easy to dye, but the yarn is deficient in compactness and waist bone feeling.

For another example, japanese patent application laid-open No. 2017-82361 discloses a garment having a function of accurately detecting physiological information of a human body, wherein at least one of a warp direction and a weft direction comprises a fabric having an elongation of 60% to 100%, the fabric comprises a crimped fiber having a residual torque of 30T/m or less, the crimped fiber comprises a composite yarn formed by a false-twisted crimped yarn having a torque in an S direction and a false-twisted crimped yarn having a torque in a Z direction, and the garment comprising the composite yarn can accurately detect physiological information of a human body and is excellent in wearing comfort, but the waist bone feeling of the fabric obtained therefrom is insufficient.

Disclosure of Invention

In view of the above problems, the present invention provides a knitted fabric having an appearance of a woven fabric, and having a bone feeling, dimensional stability and low air permeability comparable to those of a woven fabric.

The technical solution of the invention is as follows:

the woven-style-imitated knitted fabric comprises a yarn A and a yarn B, wherein the yarn A has a residual torque of below 15T/m and the content of the yarn A in the knitted fabric is 50-90 wt%; the total fineness of the yarn B and the length of the weaving thread satisfy the following relational expression:

0.10< total denier of yarn B/thread length (mm/100 loops) < 0.80.

The invention uses the low residual torque yarn A with good binding property among fibers and the yarn B with specific relation between the fineness and the thread length, so that the mobility among the loops is effectively controlled, and the knitted products have compactness, waist bone feeling, dimensional stability, low air permeability and the like woven fabrics.

Detailed Description

The woven-style-imitated knitted fabric comprises a yarn A and a yarn B, wherein the yarn A has a residual torque of below 15T/m and the content of the yarn A in the knitted fabric is 50-90 wt%; the total fineness of the yarn B and the length of the weaving thread satisfy the following relational expression:

0.10< total denier of yarn B/thread length (mm/100 loops) < 0.80.

During the formation of the false twist yarn, the fibers are drawn, bent and twisted, and the yarn thus stores a corresponding torsional stress, a portion of which is released during the false twist process or the post-treatment process, but a substantial portion of which is preserved to form a residual torque of the yarn. The higher the residual torque is, the stronger the tendency of the yarn to untwist and release internal torsional stress is, and particularly if the content of the residual torque exceeds 85 weight percent, the problem of dimensional deformation such as warp deflection of knitted fabric stitches is more likely to occur; meanwhile, if the content of the yarn a is less than 50 wt%, problems such as bias of stitch, and dimensional instability may occur. Therefore, in the knitted fabric of the present invention, the yarn a has a residual torque of 15T/m or less and a content of 50 to 90 wt%. Preferably, the yarn A has a residual torque of 0T/m (i.e., no residual torque) and is contained in an amount of 60 to 85 wt%.

The yarn A in the invention is composed of an S twisting direction part and a Z twisting direction part which have opposite torsional stress directions. Such yarns are less likely to rotate, aggregate, and the like during unwinding, and have good knitting properties; the knitted fabric has lower crimpness and good bundling property, so that the obtained knitted fabric has better flatness; meanwhile, the filling power of the loops is restrained, and the problem of skewness of the obtained knitted fabric is solved.

In the present invention, if the ratio of the total fineness (denier, hereinafter referred to as "D") of the yarn B to the knitting yarn length (length of 100 stitches) is 0.10 or less, the yarn length per unit length becomes too long, the stitches become large, the knitted fabric has insufficient tightness and the waist bone feeling becomes poor. When the ratio of the total fineness of the yarn B to the length of the knitting yarn (length of 100 stitches) is 0.80 or more, the yarn length per unit length is too short, the stitches are small and dense, and the knitted fabric is a hard sheet.

In the present invention, the fiber material used for the yarn a and the yarn B is not particularly limited. Can be polyester fiber and polyamide fiber, wherein the polyester fiber comprises polyethylene terephthalate fiber (common PET), cationic dyeable polyester fiber (CDP), polybutylene terephthalate (PBT), polytrimethylene terephthalate (PTT), polybutylene terephthalate/polyethylene terephthalate fiber (PBT/PET) side-by-side composite fiber or polytrimethylene terephthalate/polyethylene terephthalate (PTT/PET) side-by-side composite fiber and the like. Fibers having crimpability such as PBT, PBT/PET side-by-side type composite fibers and the like are preferable.

The length of the knitted fabric of the present invention when stretched to no longer be stretched is L1, the length of the yarn a is LA and the length of the yarn B is LB when a load of 0.2 g/denier (hereinafter abbreviated as g/D) is applied to the knitted fabric of the present invention in a free, tensionless state, and L1, LA and LB satisfy the following relational expressions:

2.0<LA/L1<5.0，

1.0<LB/L1<3.0，

LA/LB>1.2。

according to the yarn characteristics, the load required for straightening the single yarn is 0.2g/D, and then the knitted fabric is stretched until the knitted fabric does not stretch any more, namely the number of the yarns in the fabric is 0.2g/D, and the load is converted into N. The maximum elongation obtained by stretching the knitted fabric with a load N applied in the transverse direction thereof is the length L1 at which the knitted fabric of the present invention is stretched to no longer be stretched.

In a state where the knitted fabric was free from tension, the yarn a and the yarn B were pulled out in the lateral direction, and a load of 0.2g/D was applied to the pulled-out yarn a and yarn B, respectively, and the lengths of the yarn a and the yarn B in the straightened state were measured and recorded as LA and LB, respectively.

In the invention, the yarn A has the function of endowing the knitted fabric with certain elasticity, and the tightness and the dimensional stability of the knitted fabric are influenced by the high and low ratio of LA/L1; the yarn B has the function of controlling the over-extension and tightness of the yarn A coil in the transverse direction of the knitted fabric, so the high and low LB/L1 ratio can influence the rigidity, air permeability and size change rate of the fabric. However, when the LA/L1 ratio is 2.0 or less, the knitting length of the yarn a is short, the stitches formed by the yarn a are arranged densely, and gaps are formed between the stitches formed by the yarn B, so that the stiffness, air permeability, and dimensional change rate of the knitted fabric tend to be deteriorated. When the ratio of LB/L1 is 1.0 or less, i.e., the length of the yarn B is short, the stiffness of the knitted fabric tends to be high, the elasticity tends to be weak, and even the fabric may have no elasticity, which may impair wearing comfort. When the LA/L1 ratio is 5.0 or more, the yarn length of the yarn a is long, i.e., the stitches formed therefrom are large, the arrangement is loose, the stiffness of the knitted fabric tends to decrease, and the dimensional change rate also tends to increase. When the ratio LB/L1 is 3.0 or more, that is, the stitches are excessively large and the floats are excessively long in the knitting operation in which the yarn B is present, there is a possibility that the excessive elongation of the stitches of the yarn a in the lateral direction cannot be controlled, the stiffness and the dimensional change rate of the knitted fabric tend to be small, and the air permeability also tends to be poor. When the ratios of LA/L1 and LB/L1 are both smaller, the knitting length of the yarn is shorter, the knitting is difficult to remove, and a hole may be formed on the cloth surface. When the LA/LB ratio is less than or equal to 1.2, the proportion of the yarn B in the fabric is large, the softness of the fabric tends to be high, and the elasticity tends to be weak.

In the present invention, the total fineness of the yarn B may be selected as desired. Preferably 20 to 150D, and more preferably 30 to 120D. If the total fineness of the yarn B is less than 30D, the loops are small when knitting on a high-gauge knitting machine, and the waist-bone feeling tends to decrease although the effect on the stiff and smooth feeling of the finished product is small; and if the total fineness is more than 120D, when the yarn is knitted on a low-gauge knitting machine, because the gauge is thick and the yarn is thick, the formed coil is large, the appearance of the obtained finished product is rough, and the hand feeling also tends to be hard. The total fineness here may be the total fineness of the raw yarn or may be obtained by using a yarn having a constant boiling water shrinkage ratio.

In the present invention, the yarn B is preferably a fully drawn yarn having a boiling water shrinkage of 20% or more. Because the yarn B is interwoven with the yarn A during weaving, the shrinkage rate of the yarn B tends to be lossy, and the yarn with high boiling water shrinkage rate still has high shrinkage performance even under the condition of lossy shrinkage, so that the deformation degree and mobility of the coil can be controlled, and the knitted fabric can achieve certain tightness, waist bone feeling and dimensional stability. If the boiling water shrinkage of the yarn B is less than 20%, the shrinkage of the yarn B tends to be reduced due to the interweaving with the yarn A during weaving, the tightness of the fabric is reduced, and the dimensional stability and the waist bone feeling tend to be reduced. The form of the yarn B in the present invention is preferably a fully drawn yarn, considering that the single long fibers in the fully drawn yarn are parallel and straight, and the knitted fabric produced by using the same is closer to the smooth hand of woven fabric.

In the invention, cotton fiber and polyester fiber with cotton-like feeling can be used in consideration of giving the fabric with cotton-like feeling.

In the present invention, it is preferable that at least 1 path of the knitting operation of the yarn B is composed of loop formation and non-loop formation. The knitting action can expose the yarn B on the surface of the knitted fabric, and particularly when the yarn A is twisted yarn and the yarn B is fully drawn yarn, the appearance effect of the texture design is better embodied due to the different forms of the yarn A and the yarn B. The yarn B can effectively reduce the distance between the loops through the knitting action of loop formation and non-loop formation, and the transverse and longitudinal compactness of the fabric is improved. Wherein the knitting action of the yarn B may be loop-tuck or loop-float, preferably loop-float.

The knitted fabric of the present invention may be a single-side weft knitted fabric or a double-side weft knitted fabric. The degree of loop tightness and lumbar impression can be reflected by the yarn coverage. The yarn coverage can be adjusted by the knitting action of the yarn A and the yarn B and the arrangement ratio of each yarn. When the coverage of the yarn a on the surface of the knitted fabric is less than 30%, the elasticity of the knitted fabric, the uniformity and the compactness of the stitches tend to decrease; when the coverage of the yarn a on the surface of the knitted fabric is more than 80%, the waist bone feeling of the knitted fabric tends to be reduced, which may affect the imitation-woven style. Therefore, the coverage of the yarn a on the surface of the knitted fabric is preferably 30% to 80%.

The knitted fabric of the present invention has a tight feeling, a waistline feeling, and a low air permeability like a woven fabric on both sides, and has an appearance almost the same as a woven fabric. Can be used for making coats, trousers and the like.

The physical property parameters according to the present invention were measured and obtained by the following methods.

(1) Residual torque

5 yarns a of about 100 meters are separated from the knitted fabric. One of the two was pulled straight, and an initial load of 0.002g/D was applied to the center of the tube, and the two ends were fixed together. The yarn starts to rotate due to the residual torque to form twisted yarns until the yarn is static, the number of twists (T/m) of the static yarn is tested on a twist checker (Y301A), 5 yarns are completely tested, and the average value is the residual torque of the yarn A.

(2) Coverage of yarn A

Counting the number of all loops and the number of loops of the yarn a in 1 complete stitch cycle on the surface of the needle cylinder under a microscope, wherein the coverage rate (%) of the yarn a is not less than 100% (the number of loops of the yarn a/the number of loops of all loops), and the total number of 5 complete stitch cycles, and taking the average value as the coverage rate of the yarn a.

(3) Length L1 when knitted fabric is stretched to no longer stretch

Sampling: cutting 3 pieces of sample cloth with transverse direction of 15cm and longitudinal direction of 2.54cm from the knitted fabric;

secondly, calculating the load: the load N required for drawing was calculated by the following calculation formula [ (total fineness (D) of the yarn A + total fineness (D) of the yarn B + number of the yarn B) × 0.2g/D ]/102.04;

stretching: an SANS microcomputer controlled electronic universal tester CMT6103 manufactured by Meits Industrial systems (China) Co., Ltd is used, the grip length is 10cm, the knitted fabric is stretched in the transverse direction according to the calculated load, the stretched length is measured, and the average value is taken as the length L1 (mm) of the knitted fabric of the present invention when the knitted fabric is stretched to a non-stretched length.

(4) Length LA of yarn a, length LB of yarn B

Sampling: cutting 1 piece of sample cloth with transverse 10cm and longitudinal 2.54cm from the knitted fabric;

testing: in the tension-free state of the knitted fabric, 10 yarns a and 10 yarns B are torn off in the transverse direction. Respectively applying a load of 0.2g/D to 1 of the detached yarns A and 1 of the detached yarns B, straightening the yarns, respectively measuring the length (mm) of the yarns A and the length (mm) of the yarns B, respectively measuring the remaining 9 yarns A and 9 yarns B according to the same method, and respectively taking the average values as the length LA of the yarn A and the length LB of the yarn B.

(5) Air permeability

According to GB/T5453-1997.

(6) Degree of rigidity and softness

20mm by 15mm sample cloths were prepared, 5 pieces each in the vertical and horizontal directions. One of the sample cloths is placed on a smooth test bed with a 45-degree inclined plane, a graduated ruler is attached to the test bed, the short edge of the sample cloth is aligned with the 0-degree scale line of the ruler, the sample cloth is slowly pushed forwards from a platform with proper force to slide down, when the central point of one end of the sample cloth is in contact with the inclined plane, the moving length of the other end of the sample cloth is read, namely the rigidity and softness of the sample cloth, the data of 10 sample cloths are tested, and the average value (mm) of the transverse direction is respectively calculated. The higher the stiffness, the better the waist bone feeling of the knitted fabric.

(6) Rate of change of washing size

According to GB/T8360-2013 (roller drying). The more the dimensional change rate is toward 0, the better the dimensional stability of the knitted fabric is.

(7) Imitating the appearance of woven fabrics

The appearance of the knitted fabric was functionally evaluated by 10 persons. 8-10 people think that the fabric has woven appearance and the fabric is evaluated as excellent; 5-7 people think that the fabric has woven appearance and the fabric is evaluated as good; 2-4 people think that the fabric has woven appearance and the fabric is evaluated as general; 0 to 1 person considered that the fabric had a woven appearance and evaluated poor.

Example 1

On a 36G single-face circular knitting machine, 60D-48f-PBT/PET false twist processing yarn with residual torque of 0 is selected as yarn A, and yarn B is selected to be knitted by using boiling water shrinkage of 45% and fineness of 30D-12 f-common polyester FDY. 6 paths are a weave cycle, wherein the yarn A is used in odd number paths, and the weaving action is looping-looping; the yarn B is used on even paths, the knitting action is looping-floating, the thread length is 100mm/100w, the appearance is a twill effect, and the grey cloth is obtained. The gray fabric is subjected to pretreatment processing (1 g/L of scouring agent, the temperature of 95 ℃), dyeing (130 ℃ for 30 min) and finishing and shaping (160 ℃) to obtain the knitted fabric. Specifically, the results are shown in Table 1.

Example 2

The same operation as in example 1 was repeated except that a false twist yarn having a residual torque of 8T/m was used as the yarn A to obtain a knitted fabric of the present invention, as shown in Table 1.

Example 3

The same operation as in example 1 was repeated except that a false twist yarn having a residual torque of 15T/m was used as the yarn A to obtain a knitted fabric of the present invention, as shown in Table 1.

Example 4

A knitted fabric of the present invention was obtained in the same manner as in example 1 except that 30D-24f-PBT/PET false twist processed yarn having a residual torque of 0 was used as yarn A on a 46G single-face circular knitting machine, and yarn B having a boiling water shrinkage of 5% and a fineness of 20D-7 f-polyamide FDY was used as yarn B, and the length of the yarn was 44mm/100 w.

Example 5

The knitted fabric of the present invention was obtained by knitting a 100D-72 f-regular polyester false twist yarn having a residual torque of 0 as a yarn A and a 75D-24 f-regular polyester FDY yarn having a boiling water shrinkage of 5% as a yarn B on a 28G single-side circular knitting machine, and then knitting the yarn with a length of 166mm/100w, as in example 1.

Example 6

The knitted fabric of the present invention was obtained by knitting a yarn a of 160D-96f-PBT/PET false twist processed with a residual torque of 0 on a 24G single-side circular knitting machine and a yarn B of 100D-72 f-general polyester FDY with a boiling water shrinkage of 5% and a knitting length of 220mm/100w, using the same example 1 as the rest, as shown in table 1.

Example 7

The knitted fabric of the present invention was obtained by knitting a yarn A of 160D-96f-PBT/PET false twist processed with a residual torque of 0 on a 24G single-side circular knitting machine, and a yarn B of 150D-72 f-general polyester FDY with a boiling water shrinkage of 5% and a knitting length of 330mm/100w, in the same manner as in example 1, except for Table 1.

Example 8

The knitted fabric of the present invention was obtained in the same manner as in example 1, except that the knitting length of the yarn B was 64mm/100w in the 42G single-face circular knitting machine, and specifically, the knitted fabric is shown in table 1.

Example 9

The yarn a passes through 1 and 2 paths, the yarn B passes through 3 and 4 paths, 60s cotton-like polyester yarn is selected as the yarn C, and the knitted fabric of the invention is obtained by passing through 5 and 6 paths, and the rest is the same as the example 8, and is specifically shown in table 1.

Example 10

The knit fabric of the present invention was obtained by knitting the 50D-72 f-regular polyester false twist processed yarn having a residual torque of 0 as the yarn A and the 40D-24 f-regular polyester FDY having a boiling water shrinkage of 15% as the yarn B, in the same manner as in example 1, and as shown in Table 1.

Example 11

The knitting motion of the yarn B on the 40G single-face circular knitting machine was regarded as loop-tuck, and the knitted fabric of the present invention was obtained in the same manner as in example 1, and specifically shown in table 1.

Example 12

The knitted fabric of the present invention was obtained by selecting 75D-48f-PBT/PET false twist processed yarn with a residual torque of 0 as yarn a, knitting as loop formation-tuck, 30D-12 f-ordinary polyester FDY with a boiling water shrinkage of 45% as yarn B, knitting as loop formation-float, and a length of the knitted yarn of 100mm/100w, as in example 10, and as shown in table 1.

Example 13

The knitted fabric of the present invention was obtained by selecting 75D-48f-PBT/PET false twist processed yarn with a residual torque of 0 as yarn a, knitting as looping-tucking, 40D-24 f-polyester FDY with a boiling water shrinkage of 15% as yarn B, knitting as looping-looping, and a knitting length of 100mm/100w as in example 1, and as shown in table 1.

Example 14

On a 28G double-faced machine, 60D-48f-PBT/PET false twist processing yarn with residual torque of 0 is selected as yarn A, and yarn B is selected to be woven, wherein the boiling water shrinkage rate is 45%, and the total titer is 30D-12 f-common polyester FDY. The knitting operation of the yarn a used in the even numbered passes as the full needle-out only on the cylinder or dial side, i.e., the knitting operation is loop-stitch, and the yarn B used in the odd numbered passes as the half needle-out both on the dial and the cylinder side, i.e., the knitting operation is loop-float-stitch, and the thread length is 185mm/100w, as in example 1, the knitted fabric of the present invention was obtained, as shown in table 1.

Example 15

The knitting operation of the yarn a used in the even numbered pass as the full needle-out only on the cylinder or dial side, i.e., the knitting operation was tuck-float, and the knitting operation of the yarn B used in the odd numbered pass as the half needle-out both on the dial and cylinder side, i.e., the knitting operation was loop-float, and the thread length was 185mm/100w, as in example 1, the knitted fabric of the present invention was obtained, as shown in table 1.

Example 16

The knitted fabric of the present invention was obtained by knitting a 200D-96f-PBT/PET false twist yarn having a residual torque of 0 as yarn A on a 20G single-side circular knitting machine, and a 150D-72 f-plain polyester FDY yarn having a boiling water shrinkage of 5% and a boiling water shrinkage of 150D-100 f as yarn B, with a knitting length of 330mm/100w, as in example 16, except for Table 1.

Example 17

A22G single-side circular knitting machine was operated to knit a 160D-72f-DTY false twist yarn having a residual torque of 0T/M as yarn A and a 100D-36 f-regular polyester FDY having a boiling water shrinkage of 5% and a knitting yarn length of 222mm/100w as yarn B, and the knitted fabric of the present invention was obtained as shown in Table 1.

Example 18

The knitted fabric of the present invention was obtained by knitting a yarn A of 150D-96f-PBT/PET false twist processed with a residual torque of 0 on a 24G single-side circular knitting machine and a yarn B of 75D-72 f-general polyester FDY with a boiling water shrinkage of 15% and a knitting yarn length of 182mm/100w, in the same manner as in example 16, specifically shown in Table 1.

Example 19

A knitted fabric of the present invention was obtained by knitting a 60D-72f-DTY false twist yarn having a residual torque of 0T/M as yarn A on a 40G single-side circular knitting machine and a yarn B of a 45D-7 f-plain polyester FDY having a boiling water shrinkage of 5% and a knitting yarn length of 100mm/100w, in the same manner as in example 1, except for Table 1.

Example 20

A knitted fabric of the present invention was obtained by knitting a 75D-48f-DTY false twist yarn having a residual torque of 0T/M as yarn A on a 32G single-side circular knitting machine and a 45D-24 f-plain polyester FDY having a boiling water shrinkage of 5% and a knitting yarn length of 100mm/100w as yarn B, in the same manner as in example 12, specifically shown in Table 1.

Comparative example 1

A60D-48 f-polyester false twist yarn with a residual torque of 20T/m was selected as yarn A, and the same procedure as in example 1 was repeated to obtain a knitted fabric, as shown in Table 1.

Comparative example 2

A50D-48 f-polyester false twist yarn having a residual torque of 0 was selected as yarn A, and the same procedure as in example 1 was repeated to obtain a knitted fabric, as shown in Table 1.

Comparative example 3

A knitted fabric was obtained by knitting a yarn A of 110D-72 f-ordinary polyester false twist yarn having a residual torque of 0 on a 28G single-face circular knitting machine, a yarn B of 5% boiling water shrinkage and 100D-24 f-polyamide FDY, and a knitting motion of the yarn B of 105mm/100w as a loop-float, in the same manner as in example 1, except for Table 1.

Comparative example 4

On a 28G single-side circular knitting machine, a 75D-36 f-common polyester false twist yarn with a residual torque of 30T/m was selected as a yarn A, knitting operation was loop-tuck, and knitting operation using a polyester FDY with a boiling water shrinkage of 5% and a boiling water shrinkage of 100D-24f as a yarn B was loop-float, and a knitting yarn length thereof was 105mm/100w, and a knitted fabric was obtained as shown in Table 1, for the remainder of example 5.

TABLE 1

In the above table:

(1) as can be seen from example 1, example 2 and example 3, the smaller the residual torque of the yarn a, the greater the stiffness of the resulting knitted fabric (the better the waist bone feeling), and the smaller the dimensional change rate, the better the mock weaving effect.

(2) From examples 1 and 4, it is understood that, in the knitted fabric having a total fineness of 45D of the yarn B, the stiffness is higher than that of the knitted fabric having a total fineness of 20D of the yarn B, the air permeability and the dimensional change rate are lower than those of the knitted fabric, the appearance is better than that of the knitted fabric, and the effect of the weaving simulation is better than that of the knitted fabric.

(3) From examples 6 and 7, it is understood that the knitted fabric having the total fineness of 100D of the yarn B has equivalent stiffness to that of 150D of the yarn B under the same conditions, the former has a smaller air flow and a smaller dimensional change rate than the latter, and the effect of the mock weaving is superior to that of the latter.

(4) From example 1 and example 9, it is understood that, in the case of the knitted fabric having the coverage of the face yarn a of 67% under the same conditions, the stiffness of the former is higher than that of the latter, the air flow and the dimensional change rate are both lower than those of the latter, the appearance is better than that of the latter, and the effect of the weaving simulation is better than that of the latter in the comprehensive evaluation.

(5) From example 12 and example 13, it is understood that, in the same condition, the knitted fabric obtained by the knitting operation of loop formation and float thread of the yarn B on one side of the knitted fabric has a higher stiffness than the latter, a lower air flow and a lower dimensional change rate than the latter, and an appearance superior to the latter, and a superior overall evaluation of the effect of the mock weaving to the latter.

(6) From examples 7 and 16, it is understood that under the same conditions, the stiffness of the knitted fabric obtained with LA/L1 of 3.4, LB/L1 of 2.2 and LA/LB of 1.5 is significantly higher than that of the knitted fabric obtained with LA/L1 of 5.5, LB/L1 of 2.1 and LA/LB of 2.6, the air permeability and dimensional change rate are lower than those of the latter, the appearance is better than that of the latter, and the weaving effect is better than that of the latter in comprehensive evaluation.

(7) From examples 6 and 17, it is understood that under the same conditions, the stiffness of the knitted fabric obtained with LA/L1 of 3.4, LB/L1 of 2.2 and LA/LB of 1.5 is significantly higher than that of the knitted fabric obtained with LA/L1 of 3.4, LB/L1 of 3.6 and LA/LB of 0.9, the air permeability and dimensional change rate are lower than those of the latter, the appearance is better than that of the latter, and the weaving effect is better than that of the latter in comprehensive evaluation.

(8) From examples 5 and 18, it is understood that under the same conditions, the stiffness of the knitted fabric obtained with LA/L1 of 3.4, LB/L1 of 2.2 and LA/LB of 1.5 is significantly higher than that of the knitted fabric obtained with LA/L1 of 5.8, LB/L1 of 3.4 and LA/LB of 1.7, the air permeability and dimensional change rate are lower than those of the latter, the appearance is better than that of the latter, and the weaving effect is better than that of the latter in comprehensive evaluation.

(9) From examples 11 and 19, it is understood that under the same conditions, the stiffness of the knitted fabric obtained with LA/L1 of 3.8, LB/L1 of 1.5 and LA/LB of 2.5 is significantly higher than that of the knitted fabric obtained with LA/L1 of 1.7, LB/L1 of 1.5 and LA/LB of 1.1, the air permeability and dimensional change rate are lower than those of the latter, the appearance is better than that of the latter, and the weaving effect is better than that of the latter in comprehensive evaluation.

(10) From example 12 and example 20, it is understood that, under the same conditions, the stiffness of the knitted fabric obtained with LA/L1 of 4.1, LB/L1 of 2.5 and LA/LB of 1.6 is significantly higher than that of the knitted fabric obtained with LA/L1 of 2.8, LB/L1 of 2.8 and LA/LB of 1.0, the air permeability and dimensional change rate are lower than those of the latter, the appearance is better than that of the latter, and the weaving effect is better than that of the latter in comprehensive evaluation.

(11) As is clear from comparative example 1 and example 3, the knitted fabric obtained by using the yarn A having a residual torque of 20T/m under the same conditions is significantly lower in stiffness than the knitted fabric obtained by using the yarn A having a residual torque of 15T/m, significantly higher in air flow and dimensional change rate than the knitted fabric, far inferior in appearance to the knitted fabric obtained by using the yarn A having a residual torque of 15T/m, and inferior in overall evaluation of the effect of the mock weaving.

(12) As is clear from comparative example 2 and example 11, in the knitted fabric having a face fabric content of 45 wt% of yarn a under the same conditions, the stiffness was significantly lower than that of the knitted fabric having a face fabric content of 85 wt%, the air permeability and dimensional change rate were significantly higher than those of the knitted fabric, the appearance was far inferior to that of the knitted fabric, and the effect of the weaving simulation was poor in the overall evaluation.

(13) As is clear from comparative example 3 and example 6, in the knitted fabric having a ratio of the total fineness of the yarn B to the thread length of 0.95 and the knitted fabric having a ratio of the total fineness of the yarn B to the thread length of 0.45 under the same conditions, the stiffness and softness of the former were significantly smaller than those of the latter, the air permeability and dimensional change rate of the former were significantly larger than those of the latter, the appearance was far inferior to that of the latter, and the effect of the weaving simulation was inferior in the comprehensive evaluation.

(14) From comparative example 4 and example 6, it is understood that, in the case of the knitted fabric obtained by using 45 wt% of the yarn a having a residual torque of 30T/m and a ratio of the total fineness of the yarn B to the thread length of 0.95, the stiffness and softness of the former is lower than those of the latter, the air permeability and the dimensional change rate of the former are significantly higher than those of the latter, the appearance is far inferior to that of the latter, and the overall weaving effect is inferior, as compared with the knitted fabric obtained by using 85 wt% of the yarn a having a residual torque of 0T/m and a ratio of the total fineness of the yarn B to the thread length of 0.45.