CN106835462B

CN106835462B - Elastic water-absorbing quick-drying knitted fabric and application thereof

Info

Publication number: CN106835462B
Application number: CN201710056898.8A
Authority: CN
Inventors: 翁佛全; 张晴; 铃木英俊; 黄春燕; 小田直规
Original assignee: Toray Sakai (nantong); Toray Fibers and Textiles Research Laboratories China Co Ltd
Current assignee: Toray Sakai Weaving and Dyeing Nantong Co Ltd
Priority date: 2017-01-26
Filing date: 2017-01-26
Publication date: 2021-06-08
Anticipated expiration: 2037-01-26
Also published as: JP2020505525A; CN106835462A; WO2018137680A1; TW201829864A

Abstract

The invention discloses an elastic water-absorbing quick-drying knitted fabric and application thereof. The knitted fabric comprises a surface layer and an inner layer, wherein the inner layer at least contains 50 wt% of polyester elastic fibers, at least 1 path of the inner layer in one weave cycle consists of an A part and a B part which are woven in two different manners, and the B part is formed by a non-looping action. The invention has excellent water absorption quick drying property and elasticity, and is very suitable for being made into jackets or trousers.

Description

Elastic water-absorbing quick-drying knitted fabric and application thereof

Technical Field

The invention relates to an elastic water-absorbing quick-drying knitted fabric and application thereof, in particular to an elastic knitted fabric which is suitable for manufacturing jackets or knitted trousers, can keep the skin of a human body dry and smooth and has elasticity.

Background

With the increasing advance of science and technology, new design concepts are continuously applied to the development of garment materials, wherein sweat treatment becomes an important subject. The body can be lowered to a comfortable temperature by the mode of excreting sweat, however, when the body sweats a lot, the clothes can be completely soaked by the sweat and adhered to the skin, which prevents the body from further sweating and cooling, and causes the discomfort of sultriness, oppression and the like; on the other hand, in the wearing process, the fabric is stretched due to stretching movement of a human body and the like, so that the binding feeling is easily generated, and the wearing comfort is reduced.

At present, there are many researches on the problems of water absorption and sweat release of fabrics, for example, patent document CN201420151922.8 discloses a moisture absorption and sweat release unidirectional moisture-transfer fabric, which includes a moisture-transfer layer, a diffusion layer and an evaporation layer, wherein the moisture-transfer layer uses a liner weave structure and combines with low moisture regain yarns such as terylene or chinlon, the diffusion layer and the evaporation layer use high moisture regain or capillary effect strong ultrafine terylene yarns, the fabric has unidirectional moisture-transfer effect, but the fabric drives low moisture regain or capillary effect by simply relying on high moisture regain to lead sweat out from the inner layer to the surface layer, the moisture-transfer capability of the fabric is very limited, when a large amount of sweat is produced in a human body, the fabric still sticks on the skin to generate discomfort, and the used material is non-elastic yarns, so that the elasticity of the fabric is obviously insufficient, and the wearing comfort is greatly reduced. Further, as disclosed in Japanese patent application No. 2010-97523, a knitted fabric for clothing, in which two kinds of yarns are used for the back surface, the convex portion is a hydrophobic synthetic fiber having water-releasing property, and the other is a hydrophobic synthetic fiber having no water-releasing property, and the combination of such yarns is used for the back surface of the fabric, although the sticky feeling at the time of a large amount of sweating is improved to some extent; however, since the yarn having water-absorbing property is used for the projection, the water-absorbing property of the back surface is greatly lowered, and the function of diffusing water to the surface is also lowered, and the rapid-drying property of the whole clothing tends to be deteriorated.

In order to achieve both water absorption and sweat releasing properties and elasticity, for example, patent document cn201510096595.x discloses a single-sided water absorption quick-drying knitted fabric, wherein the inner layer of the single-sided water absorption quick-drying knitted fabric is provided with a concave-convex structure, and the convex parts can reduce the contact area of the fabric and a human body, reduce the sticky feeling of the fabric during sweating and keep the dryness and smoothness of the skin surface; in addition, the convex parts are made of polyester elastic fibers, so that the fabric can be endowed with certain elasticity, and the fabric is particularly suitable for manufacturing T-shirts in summer and the like. Since the skin dryness of the fabric increases with the increase of the height of the convex parts, but the wearing comfort (contact comfort) of the fabric is lower as the convex parts are higher, it is difficult to satisfy both the skin dryness and the contact comfort of the fabric; in addition, due to the content of polyester elastic fibers, the stiffness of the fabric is still to be further improved.

Therefore, it is very important to develop a fabric which can keep the skin of a human body dry and comfortable under the condition of a large amount of sweat, and has excellent contact comfort and elasticity.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a knitted fabric which is easy to process, can keep the skin of a human body dry and comfortable, and has excellent contact comfort and excellent elasticity, and use thereof.

The technical solution of the invention is as follows:

the elastic water-absorbing quick-drying knitted fabric comprises a surface layer and an inner layer, wherein the inner layer at least contains 50 wt% of polyester elastic fibers, at least 1 path of the inner layer in one weave cycle consists of a part A and a part B which are formed by two different weaving actions, and the part B is formed by a non-loop weaving action.

In the invention, the inner layer uses polyester elastic fiber, at least one path in one tissue circulation of the inner layer is formed by two different weaving actions, and adjacent coils have a dislocation effect to generate gaps, thereby increasing the sweat-conducting capacity and elasticity of the inner layer of the fabric. The fabric obtained by the invention is comfortable to wear and is particularly suitable for manufacturing jackets or trousers.

Drawings

Fig. 1 is a schematic structural view of a double-sided weft-knitted fabric of the present invention, in which part a is formed by a knitting operation of a loop and part B is formed by a knitting operation of a float.

Fig. 2 is a schematic structural view of the single-sided weft-knitted fabric of the present invention, in which part a is formed by tuck knitting and part B is formed by float knitting.

Detailed Description

The elastic water-absorbing quick-drying knitted fabric provided by the invention has a surface layer and an inner layer. In order to obtain excellent water-absorbing quick-drying properties, particularly to maintain a dry and smooth skin feel, the present invention provides a top layer and a back layer. The inner layer is used as a moisture-conducting layer, and sweat is quickly conducted to the surface layer of the fabric; the surface layer is used as an evaporation layer, so that sweat is continuously adsorbed to the surface layer and evaporated.

In the present invention, the inner layer contains at least 50% by weight of polyester-based elastic fibers. In the processing process after dyeing, the polyester elastic fiber is curled, so that on one hand, adjacent coils in the lining layer are staggered to generate gaps, the arrangement uniformity of the coils is reduced, sweat guide channels of the lining layer are increased, and the sweat guide performance of the lining layer is improved; on the other hand, the fabric has excellent elasticity, and the wearing comfort is improved. When the content of the polyester elastic fiber is less than 50 wt%, the polyester elastic fiber is not enough to obtain the required coil dislocation effect although being curled and shrunk in the dyeing post-processing process, namely, the lining coil is too large in arrangement regularity, the sweat guide channel is too small, the sweat guide function of the lining is not enough, when a human body sweats in a large amount, the fabric can be stuck on the skin, meanwhile, the elasticity of the fabric is also greatly reduced, and the wearing comfort is not good.

The fabric of the present invention can be obtained by knitting on a double-sided weft knitting machine, and can also be obtained by knitting on a single-sided circular knitting machine. When a single-side weft knitting machine is adopted for knitting, the compactness of the surface layer of the fabric can be improved by selecting high needle pitch, so that the effect of imitation weaving is obtained; when the double-sided weft knitting machine is adopted for knitting, the compactness of the fabric can be improved through texture design, such as bead ground texture and the like, so that the effect of imitating the weaving is obtained. Currently, knitting actions include looping, tucking, and floating (not looping). In one weave cycle of the present invention, at least 1 path of the lining is composed of a part A and a part B formed by two different knitting actions, wherein the part B is formed by a non-looping knitting action. The reason is that when the texture of the inner layer is completely knitted or knitted by knitting and tucking, the arrangement regularity of the inner layer is too high, sweat conduction channels are too few, and the dryness of the inner layer cannot be guaranteed. In the invention, the more the number of paths formed by the part A and the part B formed by two different weaving actions is, the smaller the arrangement uniformity of the coils in the inner layer of the fabric is, the more sweat guide channels are, the more the sweat guide of the fabric is facilitated, and the number of paths in the weaving method is preferably 1-72 paths, and more preferably 3-18 paths.

In the invention, the arrangement ratio of the knitting action of the part A and the knitting action of the part B also has great influence on the sweat guiding function and the elasticity of the fabric. The larger the proportion of knitting action of the part B is, the smaller the regularity of the stitch arrangement of the inner layer of the fabric is, the better the sweat guiding function and the elasticity of the fabric are, but the arrangement ratio of the part A to the part B is more than 1: when 5, the inner layer of coils are relatively loose in arrangement, the elasticity of the fabric is increased, but the elastic recovery rate tends to be reduced, and the dimensional stability and the stiffness of the fabric are possibly influenced. Therefore, the ratio of the two is preferably 1: 1-1: more preferably, the ratio of sweat transport, elasticity and elastic recovery is 1: 2-1: 3.

the polyester-based elastic fiber used in the present invention is preferably an elastic fiber having a recovery from stretch (CR value) of 30% or more. The polyester elastic fiber with the CR value within the range has good crimpability, and after the fabric formed by the polyester elastic fiber is dyed, the regularity of the coil arrangement of the inner layer is proper, so that the excellent sweat guiding function and elasticity of the fabric can be ensured, and the elastic recovery rate and the stiffness of the fabric can be ensured. The polyester elastic fiber used in the present invention is more preferably an elastic fiber having a CR value of 40 to 60%.

The type of the polyester-based elastic fiber used in the present invention is not particularly limited, and may be a monocomponent elastic fiber, a bicomponent side-by-side elastic fiber, or a high elastic false twist yarn, and is preferably polybutylene terephthalate (PBT), polytrimethylene terephthalate (PTT), polybutylene terephthalate/polyethylene terephthalate (PBT/PET), polytrimethylene terephthalate/polyethylene terephthalate (PTT/PET), or high viscosity PET/low viscosity PET. The form is not particularly limited, and may be fully drawn yarn FDY or false twist yarn DTY. The fineness of the polyester elastic fiber is not particularly limited, but is preferably 30 to 200 deniers (abbreviated as D) in consideration of the lightweight property of the fabric.

In the present invention, in consideration of the elasticity of the fabric, it is preferable to use polyester elastic fibers for all of the inner layer, and it is more preferable to use polyester elastic fibers for both of the outer and inner layers, that is, the content of the polyester elastic fibers in the fabric is 100% by weight. The types of the polyester-based elastic fibers in the front and back layers may be the same or different, and are not particularly limited. The cross-knitted yarns may be natural fibers or synthetic fibers, but in consideration of the water-absorbing and quick-drying properties of the fabric, synthetic fibers are preferably used.

The fabric of the present invention is preferably a fabric produced according to JIS L1096: 2010 standard tests show that the elastic elongation is 20-150%, and the elongation recovery after 30 seconds is more than 70%; more preferably, the elastic elongation is 80 to 120% and the recovery from elongation after 30 seconds is 80 to 95%.

In the invention, the lower the water retention rate of the inner layer is, the better the dryness of the fabric is, even under the condition of a large amount of sweat, the sweat can be quickly absorbed and transferred and can be timely diffused to the surface, the contact surface with the skin is always kept dry and comfortable, and the comfort of continuous wearing is not influenced. The water absorption speed is preferably 3 seconds or less; preferably, the surface-to-interior water absorption diffusion area ratio is more than 3.0, and more preferably 3.0-10.0; the water retention of the inner layer is preferably 20.0% or less, more preferably 5.0% or less.

The fabric of the invention preferably has a gram weight of 100-400 g/square meter, more preferably 150-300 g/m². When the transverse or longitudinal density of the fabric is lower than 30 coils/inch, the stiffness of the fabric tends to be reduced; when the density of the fabric in the transverse direction or the longitudinal direction is more than 80 coils/inch, the tightness of the fabric is increased, and the elasticity tends to be reduced. Therefore, the transverse and longitudinal densities of the fabric are preferably 30-80 circles/inch.

The knitted fabric can be used for manufacturing jackets or trousers.

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

(1) Elastic elongation

According to JIS L1096: 2010 standard test.

(2) Recovery rate of elongation

According to JIS L1096: 2010 standard test.

(3) Speed of water absorption (dropping method)

3 pieces of sample cloth with the size of about 15cm by 15cm are cut, the surface of the sample cloth faces downwards under the condition of no excessive tension, the sample cloth is fixed on a frame with the diameter of 10cm, the surface of the sample cloth is placed horizontally, the sample cloth is fixed in a clamp, the front end of a burette of the sample cloth is 5cm away from the surface of the sample cloth which is placed horizontally, the water absorption time (reading 0.1 second) from 1 drop of water to the time when the drop of water is dropped on the sample cloth and no special reflection exists is recorded, the measurement is carried out on 3 random places on the 3 pieces of sample cloth according to the method, the total number of the measurement is 9, and finally, the average value is taken.

(4) Surface-to-interior diffusion area ratio

Cutting 3 pieces of sample cloth of 10cm by 10cm, and humidifying for 4 hours at the temperature of 20 ℃ and the humidity of 65%; then, 1mL of ink (ink) was sucked by a pipette and dropped on a glass plate, the back surface of the sample cloth was faced down and covered with the ink, and after 3 minutes, the surface level of the ink on the sample was measured by an area measuring instrument (S)_{Watch (A)}) And an inner layer (S)_{Lining (Chinese character of 'li')}) Diffusion area (three decimal places are retained). The surface-to-interior diffusion area ratio (one digit after the decimal point is retained) is calculated by the following formula:

surface-to-interior diffusion area ratio = S_{Watch (A)}/ S_{Lining (Chinese character of 'li')}

The surface-to-interior diffusion area ratio data of 3 sample cloths were continuously measured, and the average was calculated.

(5) Water retention rate of inner layer

Firstly, 3 pieces of sample cloth with 10cm by 10cm are cut, 6 pieces of filter paper with the same size are taken, and 1 piece of organic glass with the same size is taken. Weighing organic glass (W) at 20 deg.C and 65% humidity₀) And weight of sample cloth (W)₁) (three decimal places are reserved);

② measuring 2cc distilled water by an injector, placing the sample cloth on the organic glass rapidly, placing for 1min, weighing the weight (W) of the sample cloth after absorbing water₂) (three decimal places are reserved);

thirdly, weighing the weight (W) of the organic glass and the residual distilled water after the test₃) (three decimal places are reserved);

weighing the weight (w 1, w 3) of the two pieces of filter paper before water absorption (keeping three decimal places);

fifthly, placing the sample cloth after absorbing water between the two pieces of filter paper, placing a 500g weight on the sample cloth, and directly measuring the weights (w 2 and w 4) of the surface filter paper and the inner filter paper after placing for 1min (keeping three decimal places);

sixthly, the water retention ratio between the exterior and the interior (one bit after the decimal point is reserved) is calculated by the following formula,

water retention in the inner layer (%) = (w 4-w 3)/(W₂-W₁）×100

W₁: weight (g) of sample cloth before Water absorption

W₂: weight (g) of sample cloth after absorbing water

W₃: weight (g) of organic glass and residual distilled water after water absorption

w 1: weight (g) of surface filter paper before Water absorption

w 2: weight (g) of surface Filter paper after Water absorption

w 3: weight (g) of the filter paper inside before water absorption

w 4: weight (g) of the filter paper inside after water absorption.

(6) Rate of recovery from expansion and contraction CR value

a. Firstly, humidifying the yarn to be tested for 12 hours under the standard atmospheric pressure;

b. using a yarn length measuring instrument, 10m of the yarn to be tested (10 turns x 1 m/turn) was taken, the yarn head and yarn end were tied off, and tied with a colored marker thread on the skein for marking. Hanging on a test rack;

c. placing the skein in a standard atmospheric condition, and balancing for more than 12 hours before carrying out heat treatment;

d. adding a certain amount of soft water into the constant-temperature water tank to ensure that the sample can be completely immersed and cannot touch the wall of the water tank, and setting the temperature of the water tank to be 90 ℃. Folding the sample in half and then folding the sample in half, packaging the sample in a mesh bag in a relaxed state, carefully putting the mesh bag containing the sample into hot water, uniformly stirring the mixture by using a glass rod for 20 minutes, after the heat treatment, carefully taking out the mesh bag by using a clamp, putting the mesh bag into a tray, hanging the sample in a relaxed and tension-free manner after the mesh bag is cooled, and balancing the sample after the heat treatment in a standard atmosphere;

e. calculating the initial load and the constant load: initial load (g): 0.002 g/Dxyarn fineness Dx2 xturns, constant load (g): 0.1 g/Dx yarn fineness Dx 2 x turns number;

f. soft water was placed in a large number of test cartridges one day in advance and the temperature was adjusted at standard atmospheric pressure for 20 ℃ 12 hours;

g. hanging a sample on a yarn hanging hook, hanging an initial load and a constant load on a color mark line at the other end in sequence, paying attention to the adjustment of tension, putting the sample into soft water in a large testing cylinder, simultaneously timing by using a stopwatch, standing for 2 minutes, reading the length L of the sample by using a scale, and accurately measuring to 1 mm; taking down the fixed load by a hook, keeping the initial load state, and reading the length L1 of the sample by a ruler after 2 minutes until the accuracy is 1 mm; formula for calculating stretch recovery (i.e., yarn CR value):

in the formula: CR: recovery from stretch,%;

l: the length of the sample under the initial load and the constant load is mm;

l1: the constant load is removed, and the length of the sample under the initial load is mm.

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

Example 1

On a 28-needle double-sided weft knitting machine, 4 passes are one knitting cycle. The 1 st and 3 rd paths form surface layers by using 75D-72 f-common PET DTY in a full circle mode; and (3) selecting 60D-24f-PBT DTY (CR value is 35%) and 60D-36 f-common PET DTY respectively in the 2 nd path and the 4 th path to form an inner layer on the dial to obtain the grey cloth. The No. 2 route 60D-24f-PBT DTY is woven in a looping and floating mode, and the ratio of looping to floating is 1: 1, 4 th route 60D-36 f-ordinary PET DTY is knitted in a full stitch manner.

The obtained grey cloth is further processed by pretreatment (scouring agent 1g/L, temperature 95 ℃), dyeing (disperse dye, 130 ℃ for 30 min) and finishing (hydrophilic resin 10g/L and neutralizing acid 1 g/L) to obtain the knitted fabric of the invention. Specifically, the results are shown in Table 1.

Example 2

On a 36-needle single-side weft knitting machine, 4 passes are one knitting cycle. Wherein, the 1 st and 3 rd paths adopt 75D-72 f-common PET DTY to form a surface layer in a full loop forming mode; and the paths 2 and 4 adopt 60D-24f-PBT DTY (CR value is 35%) and 60D-36 f-common PET DTY to form an inner layer, so as to obtain the grey cloth. The No. 2 route 60D-24f-PBT DTY is woven in a tucking and floating mode, and the ratio of tucking to floating is 1: 1, 4 th route 60D-36 f-common PET DTY is knitted in a full loop mode, and the rest is the same as the example 1 to obtain the knitted fabric of the invention. Specifically, the results are shown in Table 1.

Example 3

On a 28-needle double-sided weft knitting machine, 10 passes were 1 knitting cycle. The odd-numbered paths form a surface layer on a needle cylinder in a full-loop mode by using 75D-72 f-common PET DTY; and selecting 60D-24f-PTT DTY (CR value is 35%) and 60D-36 f-common PET DTY for even paths to form an inner layer on a dial to obtain a grey cloth. The 2 nd, 6 th and 10 th routes 60D-24f-PTT DTY are woven in a looping and floating mode, and the ratio of looping to floating is 1: 1; the third and the 8 th routes 60D-36 f-common PET DTY are knitted in a full loop forming mode, and the knitting fabric is obtained in the same way as the example 1. Specifically, the results are shown in Table 1.

Example 4

On a 36-needle single-side weft knitting machine, 10 passes are one knitting cycle. The odd paths form a surface layer in a full-looping mode by using 75D-72 f-common PET DTY; and selecting 60D-24f-PTT DTY (CR value is 35%) and 60D-36 f-common PET DTY for even paths to form an inner layer to obtain grey cloth. The 2 nd, 6 th and 10 th routes 60D-24f-PTT DTY are woven in tucking and floating modes, and the proportion of tucking and floating is 1: 1, 4 th and 8 th routes 60D-36 f-common PET DTY are knitted in a full loop forming mode, and the rest is the same as the example 1 to obtain the knitted fabric of the invention. Specifically, the results are shown in Table 1.

Example 5

On a 28-needle double-sided weft knitting machine, 36 knitting cycles are performed. 75D-36f-PBT/PET DTY (CR value is 41%) is selected for odd paths to form a surface layer on a syringe in a full-loop mode; and forming the inner layer by selecting 40D-24f-PBT DTY (with the CR value of 39%) in the even-numbered paths in a looping and floating mode, wherein the ratio of looping to floating in the even-numbered paths is 1: 5, the same as example 1 was otherwise repeated to obtain a knitted fabric of the present invention. Specifically, the results are shown in Table 1.

Example 6

On a 36-needle single-side weft knitting machine, 36 knitting cycles are performed. The surface layer is formed by the odd-numbered circuit by adopting 50D-36f-PBT/PET DTY (CR value is 49%) in a full-circle mode; and the even-numbered paths adopt 40D-24f-PBT DTY (CR value is 39%) and form an inner layer in a manner of tucking and floating, and the proportion of tucking and floating in the even-numbered paths is 1: 5, the same as example 1 was otherwise repeated to obtain a knitted fabric of the present invention. Specifically, the results are shown in Table 1.

Example 7

On a 36-needle single-side weft knitting machine, 12 passes are one knitting cycle. Selecting 75D-72 f-common PET DTY for odd paths and forming a surface layer in a full-looping mode; and even routes are formed by 60D-24f-PBT (Polybutylece terephthalate) DTY (CR value is 35%) and 60D-36 f-common PET DTY, wherein the 2 nd, 6 th and 10 th routes are woven by the 60D-24f-PBT DTY in a tucking and floating way, and the ratio of tucking to floating is 1: 8, 4 th, 8 th and 12 th routes 60D-36 f-common PET DTY are knitted in a full loop mode, and the rest is the same as the example 1 to obtain the knitted fabric of the invention. Specifically, the results are shown in Table 1.

Example 8

On a 28-needle double-sided weft knitting machine, 36 knitting cycles are performed. The odd-numbered paths form a surface layer on a needle cylinder in a full-loop mode by using 75D-72 f-common PET DTY; and (3) interweaving 40D-24f-PBT DTY (with the CR value of 39%) and 60D-36 f-common PET DTY on a dial in a 1 x 1 mode to form an inner layer in even paths to obtain the grey fabric. The PBT/PET is woven in a loop forming and floating thread mode, and the ratio of the loop forming to the floating thread is 1: 5, the same as example 1 was otherwise repeated to obtain a knitted fabric of the present invention. Specifically, the results are shown in Table 1.

Example 9

The 2 nd routing CR value is 41% 60D-24f-PBT DTY is woven in a loop-forming and float-line mode, and the ratio of loop-forming to float-line is 1: 1, the remainder of the same procedure as in example 2 gave a knitted fabric. Specifically, the results are shown in Table 1.

Example 10

The same procedure as in example 9 was repeated except that 60D-24 f-high stretch PET DTY having a CR value of 25% was used in lane 2 to obtain a knitted fabric of the present invention. Specifically, the results are shown in Table 1.

Example 11

The same procedure as in example 9 was repeated except that 60D-24 f-high stretch PET DTY having a CR value of 35% was used in the 2 nd pass to obtain a knitted fabric of the present invention. Specifically, the results are shown in Table 1.

The knitted fabrics of examples 1-11 were used to make jackets or pants.

Comparative example 1

On a 28-needle double-sided weft knitting machine, 6 paths form one knitting cycle. The odd-numbered paths form a surface layer on a needle cylinder in a full-loop mode by using 75D-72 f-common PET DTY; and even routes form an inner layer on the dial by using 60D-24f-PBT (with the CR value of 35%) and 60D-36 f-common PET (polyethylene terephthalate) DTY, wherein the 2 nd route 60D-24f-PBT DTY is woven in a looping and floating way, and the ratio of looping to floating is 1: 1, 4 th and 6 th routes 60D-36 f-common PET DTY are knitted in a full loop mode, and the rest is the same as the example 1 to obtain the knitted fabric. Specifically, the results are shown in Table 1.

Comparative example 2

On a 36-needle single-side weft knitting machine, 8 knitting cycles are performed. Selecting 75D-72 f-common PET DTY for odd paths and forming a surface layer in a full-looping mode; and even routes are formed by 60D-24f-PBT DTY (CR value is 35%) and 60D-36 f-common PET DTY, wherein the 2 nd route 60D-24f-PBT DTY is woven in a tucking and floating way, and the ratio of tucking to floating is 1: 1, 4 th, 6 th and 8 th routes 60D-36 f-common PET DTY are knitted in a full loop mode, and the rest is the same as the example 1 to obtain the knitted fabric. Specifically, the results are shown in Table 1.

Comparative example 3

On a 28-needle double-sided weft knitting machine, 10 passes are one knitting cycle. The odd-numbered paths form a surface layer on a needle cylinder in a full-loop mode by using 75D-72 f-common PET DTY; the even number of paths adopt 60D-24f-PTT DTY (CR value is 35 percent) and 60D-36 f-common PET DTY to form an inner layer on a dial in a full-loop mode. Wherein, 60D-24f-PTT DTY (CR value is 35%) is selected for the 2 nd, 6 th and 10 th ways, 60D-36 f-common PET DTY is selected for the 4 th and 8 th ways, and the rest is the same as the embodiment 1 to obtain the knitted fabric. Specifically, the results are shown in Table 1.

Comparative example 4

On a 36-needle single-side weft knitting machine, 8 knitting cycles are performed. Selecting 75D-72 f-common PET DTY for odd paths and forming a surface layer in a full-looping mode; and selecting 60D-36 f-common PET DTY for forming an inner layer in the even paths, wherein the 2 nd path is woven in a tucking and floating mode, and the ratio of tucking to floating is 1: knitting was performed in the full-loop manner in the 1 st, 4 th, 6 th and 8 th courses, and the knitting fabric was obtained in the same manner as in example 1. Specifically, the results are shown in Table 1.

TABLE 1

In the above table, the first and second sheets,

(1) as can be seen from examples 1 and 3, and examples 2 and 4, under the same conditions, the water absorptions of the fabric containing 50% of the polyester-based elastic fiber in the back layer were comparable to those of the fabric containing 60% of the polyester-based elastic fiber in the back layer, but the quick-drying property (small surface-to-back diffusion area ratio, large water retention value in the back layer) of the fabric was slightly inferior to that of the fabric in the back layer; the former has a lower elastic elongation than the latter and a higher recovery from elongation than the latter.

(2) From example 4 and example 7, it can be seen that under the same conditions, part a of the inner layer: the proportion of part B is 1: 1 and part A: the proportion of part B is 1: the water absorption of the fabric 8 is equivalent to that of the fabric, but the quick drying property (small surface-to-surface diffusion area ratio and large water retention value of the inner layer) and the elastic elongation of the fabric are lower than those of the fabric, and the elongation recovery rate of the fabric is higher than that of the fabric.

(3) It can be seen from examples 5 and 8 that, under the same conditions, the surface layer of PBT/PET and the inner layer of PBT have the same water absorption as the surface layer of PET and the inner layer of PET and PBT, but the former has better quick-drying property (large surface-to-inner diffusion area ratio and small inner layer water retention value) and elastic elongation than the latter.

(4) It can be seen from examples 11 and 10 that, under the same conditions, the water absorption of the fabric using the high-elasticity PET with the CR value of 35% for the inner layer is equivalent to that of the fabric using the high-elasticity PET with the CR value of 25% for the inner layer, but the quick-drying property (large surface-to-inner diffusion area ratio, small water retention value of the inner layer) and the elastic elongation are superior to those of the latter.

(5) As can be seen from comparative example 1 and example 1, the water absorption, quick-drying properties (small surface-to-interior diffusion area ratio, large water retention value of the inner layer), and elastic elongation of the fabric having a PBT fiber content of 33% in the inner layer are far inferior to those of the fabric having a PBT fiber content of 50% in the inner layer under the same conditions.

(6) As can be seen from comparative example 2 and example 2, the fabrics with the 28% content of PBT fiber in the inner layer have much lower quick drying property (small surface-to-inner diffusion area ratio, large water retention value in the inner layer) and elastic elongation than the fabrics with the 50% content of PBT fiber in the inner layer under the same conditions.

(7) As can be seen from comparative example 3 and example 1, the water absorption, quick drying (small surface-to-surface diffusion area ratio, large water retention value of the inner layer), and elastic elongation of the fabric having the inner layer having the fully knit structure are far inferior to those of the fabric having the inner layer having the loop and float yarn number under the same conditions.

(8) As can be seen from comparative example 4 and example 2, and comparative example 4 and example 4, the water absorptions of the fabric having both the front and back layers of ordinary PET are equivalent to those of the fabric having the front layer of ordinary PET and the back layer of ordinary PET and polyester elastic fiber, but the quick-drying property (small front-back diffusion area ratio, large back water retention value) and the elastic elongation of the former are far inferior to those of the latter.

Claims

1. An elastic water-absorbing quick-drying knitted fabric is characterized in that: the knitted fabric is provided with a surface layer and an inner layer, yarns forming the surface layer and the inner layer of the knitted fabric are polyester elastic fibers, at least 1 path of the inner layer in one weave cycle consists of a part A and a part B which are formed by two different knitting actions, and the part B is formed by a non-loop knitting action; wherein the polyester elastic fiber is polybutylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate/polyethylene terephthalate, polytrimethylene terephthalate/polyethylene terephthalate or high-viscosity PET/low-viscosity PET; the polyester elastic fiber has a stretch recovery rate of 30% or more.

2. The elastic water-absorbing quick-drying knitted fabric according to claim 1, which is characterized in that: in the lining of the knitted fabric, the proportion of the part A to the part B in the same number of the knitted fabric is 1: 1-1: 5.

3. the elastic water-absorbing quick-drying knitted fabric according to claim 1 or 2, characterized in that: according to JIS L1096: 2010 standard measures that the elastic elongation of the knitted fabric is 20-150%, and the elongation recovery rate after 30 seconds is more than 70%; and the water absorption speed of the knitted fabric is less than 3 seconds, the water absorption diffusion area ratio of the surface layer to the inner layer is more than 3.0, and the water retention rate of the inner layer is less than 20%.

4. The elastic water-absorbing quick-drying knitted fabric according to claim 1 or 2, characterized in that: the knitted fabric has the gram weight of 100-400 g/square meter and the transverse and longitudinal densities of 30-80 circles/inch.

5. A jacket or pants made using the elastic, water-absorbing, quick-drying knit fabric of claim 1.