CN110760980A - Weft-knitted cut pile knitted fabric with double-sided structure and knitting method thereof - Google Patents

Abstract

The invention discloses a double-sided weft-knitted cut pile knitted fabric and a weaving method thereof. The fabric comprises a suede layer, a plane layer and a connecting layer. The connecting layer connects the plane layer and the suede layer, and loops of the suede layer form a heel. Cutting loops into piles is done in one step. The weft-knitted cut pile knitted fabric provided by the present invention is knitted by a double-sided circular weft machine, the cylinder needles are configured by knife needles and latch needles, and the dial needles are configured by latch needles, which can make the front and back sides of the fabric have different stitch densities, and the fabric plane layer The coil density is greater than the coil density of the fabric suede layer, and the suede layer is looped and cut in one step, which saves production costs and improves production efficiency. It improves the dimensional stability of the fabric and reduces the bottom-out phenomenon of the fabric fuzz or connecting yarn. The weaving method omits the link of the fabric compounding process, ensures the safety of the fabric, and has a wide range of application prospects in clothing fabrics, home textile fabrics, and industrial fabrics.

Description

A kind of double-sided structure weft-knitted cut pile knitted fabric and its weaving method

technical field

The invention belongs to the technical field of textile product production, and in particular relates to a double-sided structure weft-knitted cut pile knitted fabric and a weaving method thereof.

Background technique

At present, weft-knitted cut pile fabrics are mainly formed by raising the pad weave knitted fabrics, loop weave knitted fabrics or plush weave knitted fabrics, and can also be formed by compounding pile fabrics with other fabrics. The pile fabric formed by the raising method has the problems of easy lint loss, exposed pile yarn, and unstable size, and the raising treatment has the problems of complicated process parameter setting and high production cost. In addition, the safety of the composite reagents used in the composite process is difficult to guarantee, and the produced fabrics are not soft enough.

In addition, the Chinese patent application with the publication number of CN 108930089A discloses a double-sided weft knitting knitting method for reverse wrapping and cutting loop piles. In this method, the formation of piles by the pile layer and the formation of piles by cutting the loops are completed separately, and the knitting is increased. The complexity of the process; the density of the turn-up cloth surface and the suede loop is the same, which reduces the diversity of suede fabrics woven by this method and limits its application range; and there is the possibility of off-line and off-loop in the process of knife-needle cutting. .

It can be seen that it is very necessary to develop a knitting method in which the pile layer terry forming and the loop cutting and pile forming are carried out at the same time.

SUMMARY OF THE INVENTION

In view of the problems and deficiencies existing in the prior art, the present invention provides a double-sided weft-knitted cut pile knitted fabric with a suede layer, a plane layer and a connecting layer and a knitting method thereof, which can realize loop forming and cutting of the suede layer. The looping and pile formation are carried out at the same time, which avoids the possibility of de-threading and looping during the cutting process of the knife and needle, broadens the application range of weft-knitted cut-pile knitted fabrics, and solves the problems of conventional weft-knitted cut-pile fabrics such as lint, exposed bottom and unstable size. , and the production process is simple, the cost is low, the produced fabric is soft to the touch, and the safety is high.

A technical solution provided by the present invention is that a double-sided structure weft-knitted cut-pile knitted fabric includes a pile layer, a plane layer and a connecting layer, and the pile layer of the weft-knitted cut-pile knitted fabric is composed of ground yarns and pile yarns. It is woven from two kinds of yarns, the ground yarn forms the base fabric of the suede layer, and the pile yarn forms the plush of the suede layer. It is woven from the veil; the connecting layer is the middle layer connecting the plane layer and the suede layer, and is woven from the connecting yarn.

It should be noted that the fabric is knitted on a double-sided circular weft machine with a cylinder latch needle and a corresponding knitting needle cam, a cylinder cutter needle and a corresponding knitting needle cam, and a yarn guide with two yarn guide holes. .

In an embodiment, the material of the pile yarn, the ground yarn, the connecting yarn and the veil is one or more of cotton, wool, viscose, polyester, nylon, acrylic and the like.

In an embodiment, the linear density of the face yarn, the ground yarn and the connecting yarn is 50-300D, and the linear density of the pile yarn is 300-1500D.

As a second aspect of the present invention, there is provided a weaving method for weft-knitted cut-pile knitted fabric with double-sided structure, comprising the following steps:

(1) Weaving the suede layer of the fabric, the method is as follows:

The pile yarn and the ground yarn are fed into the yarn guide with two yarn guide holes from different angles. The cylinder latch needle rises to the height of the ground yarn laying yarn, and at the same time hooks the ground yarn and the pile yarn, both the ground yarn and the pile yarn form a circle, the cylinder knife needle rises to the height of the pile yarn laying yarn, and only hooks the ground yarn and the pile yarn. The pile yarn is taken, the ground yarn is not woven, and the pile yarn descends with the knife needle to the blade position of the knife needle, and the pile yarn is cut by the knife needle to form plush;

(2) Weaving the fabric plane layer, the method is as follows:

The veil is fed into the common yarn guide, the knitting needles located on the needle plate extend outward to the outermost end, the loops on the plane layer are withdrawn from the hooks of the knitting needles to the needle bars; the knitting needles are retracted inward, Hook up the veil; as the knitting needle continues to retract inward, the old loop of the plane layer pushes the latch to close, and the new veil completes the process of looping, bending and unhooking, forming a new plane layer loop;

(3) Weaving the fabric connection layer, the method is as follows:

The connecting yarn is fed into the common yarn guide, the knitting needles located on the dial extend outward to the tuck position, the old loops of the plane layer are still hung on the needle tongue, hook the connecting yarn, and the knitting needles return inward The new connecting yarn and the old loop of the plane layer enter the needle hook together, and the new connecting yarn forms a cantilever arc in the inner layer of the fabric plane layer; the latch needle located on the needle cylinder extends upward to the tuck position, and the old loop of the suede layer Still hanging on the latch, hook the connecting yarn, the latch needle moves downward, the new connecting yarn and the old loop of the suede layer enter the needle hook together, and the new connecting yarn forms a cantilever in the inner layer of the fabric suede layer; The fabric connection layer is knitted with a needle disc or a needle cylinder according to a certain rule, so as to realize the connection of the front and back sides of the fabric.

Preferably, the connection layer is formed by two-way complementary knitting tucks, that is, the two-way tucks are knitted on the same set of cylinder needles and dial needles respectively.

It can be understood that, the height of the cylinder knife needle of the circular weft machine rising along the needle cam is lower than the rising height of the cylinder latch along the needle cam.

Further, another knitting method of the suede layer of the knitted fabric is that neither the latch needle nor the knife needle is raised, the knitting needle does not pick up the yarn, and both the ground yarn and the pile yarn are woven with floating threads.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the double-sided weft-knitted cut pile knitted fabric provided by the present invention, the pile yarns on the suede layer are bound to the base fabric of the suede layer by ground yarns and connecting yarns, which reduces the problem of fabric shedding.

2. The double-sided circular weft machine is used for fabric weaving. In the weaving process, the pile yarn is directly cut by the needle cylinder knife, which omits the link of raising processing, saves the production cost and improves the production efficiency.

3. The cylinder needle of the double-sided circular weft machine adopts the configuration of knife needle and latch needle, and the dial needle adopts the configuration of latch needle, which can make the loop density of the front and back sides of the fabric different. The existence of the connecting layer plays a role of fixing and isolating the plane layer and the suede layer, improving the stability of the fabric structure and dimension, and reducing the bottom-out phenomenon of the fabric pile yarn or the connecting yarn.

4. The existence of the connecting layer plays a role in connecting the plane layer and the suede layer, and the connecting yarn is widely used to ensure the fluffy and soft feel of the fabric.

5. The double-sided structure weft-knitted cut pile knitted fabric provided by the present invention has two different appearances of the composite process, but the weaving method omits the link of the fabric composite process, so that the suede layer of the fabric is plump and fluffy, and the flat layer of the fabric is flat and dense , and to ensure the safety of the fabric, it has a wide range of application prospects in clothing fabrics, home textile fabrics, industrial fabrics, etc.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is a schematic diagram of the A/B side structure of the double-sided structure weft-knitted cut pile knitted fabric.

FIG. 2 is a schematic diagram of the knitting needle trajectory of Example 1. FIG.

Figure 3 is a schematic diagram of a circular knitting needle cylinder.

Fig. 4 is a schematic diagram of threading of a thread guide with two thread guide holes.

Fig. 5 is a schematic diagram showing the positional relationship between the rising height of different knitting needles of the needle cylinder on the circular knitting machine along the needle jack triangle and the yarn feeding height.

FIG. 6 is a schematic diagram of a knitting needle trajectory in Example 2. FIG.

Reference numerals: 101-plane layer, 102-intermediate layer, 103-suede layer, 001-latch needle track, 002-knife needle track, a-latch needle, b-knife needle, 003-ground yarn threading hole, 004-pile yarn threading hole, 005- initial position of knitting needle, 006-pile yarn feeding position, 007-ground yarn feeding position.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The present invention will be further described below with reference to specific embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

Example 1

The structure of the double-sided weft-knitted cut-pile knitted fabric woven in this embodiment is shown in FIG. 1 .

The yarn selection specifications in this implementation are:

No. 1: Velvet yarn: 300D/288F white polyester DTY; ground yarn: 100D/48F white polyester DTY

Road 2: Veil: 100D/48F White Polyester DTY

The 3rd way: connecting yarn: 50D/36F white polyester high elastic yarn

In this embodiment, the circular knitting machine is set as follows: the cylinder cutter needle and the cylinder latch needle of the circular weft machine are arranged at intervals of one another, and the ordinary yarn guide and the yarn guide with two yarn guide holes are arranged at intervals of one another.

Circular machine equipment parameters:

Machine size: 24G/25.4mm

Cylinder diameter: 30 inches

Total number of needles: 2256

Number of roads: 54F

As shown in Figure 2, the knitting method in this implementation adopts the 1st, 4th, 7th, 10th, 13th, 16th way to weave the pile layer. As shown in Figure 4, the pile yarn and the ground yarn are fed together with two yarn guide holes. In the yarn feeder, the height of the cylinder knife needle rising along the needle triangle is lower than the height of the cylinder latch needle rising along the needle triangle. As shown in Figure 5, the ground yarn laying position is high, at the 007 position, and away from Cylinder latch needle a, the pile yarn laying position is low, at the 006 position, and close to the needle cylinder latch needle a, the cylinder latch needle a rises to the position of the ground yarn laying height 007, and simultaneously hooks the ground yarn and The pile yarn, the ground yarn and the pile yarn are all formed into a circle, the needle b of the needle cylinder knife rises to the pile yarn laying height 006 position, only the pile yarn is hooked, the ground yarn is not woven, and the pile yarn is not woven. As the knife needle b descends to the blade position of the knife needle b, the pile yarn is cut by the knife needle to form pile, the latch needle and the knife needle do not rise, the knitting needle does not pick up the yarn, the ground yarn and the pile yarn Weaving with uniform floating thread, forming two-separate-one twill raising effect on the surface of the fabric;

The 2nd, 5th, 8th, 11th, 14th and 17th knitting plane layers, the veil is fed into the ordinary yarn guide, the knitting needles located on the dial extend outward to the outermost end, the loops on the plane layer are woven from the knitting The hook of the needle retreats to the needle bar; the knitting needle retracts inward to pick up the veil; as the knitting needle continues to retract inward, the old loop of the plane layer pushes the latch to close, and the new veil completes the loop and bends the yarn. , The process of taking off the loop, forming a new plane layer loop, and the veil forms a dense plain weave loop on the surface of the fabric.

The 3rd, 6th, 9th, 12th, 15th and 18th knitting connecting layers, the connecting yarn is fed into the common yarn guide, the knitting needles located on the dial extend outward to the tuck position, the old stitches of the flat layer Still hanging on the tongue, hook the connecting yarn, the knitting needle retracts inward, the new connecting yarn and the old loop of the plane layer enter the needle hook together, and the new connecting yarn forms a cantilever arc in the inner layer of the fabric plane layer; The latch needle a on the needle cylinder extends upward to the tuck position, the old stitches of the suede layer are still hanging on the latch, and the connecting yarn is hooked, the latch needle a moves downward, and the new connecting yarn and the old stitches of the suede layer Enter the needle hook together, and the new connecting yarn forms a cantilevered arc on the inner layer of the fabric suede layer; the fabric connecting layer is regularly knitted with a needle plate or a needle cylinder, and the connecting yarn is tucked to connect the fabric suede layer and the plane layer before and after. , and the connecting layer is formed by two-way complementary knitting tucks, that is, the two-way tucks are knitted with the same group of cylinder needles and dial needles respectively.

Example 2

The structure of the double-sided weft-knitted cut-pile knitted fabric woven in this embodiment is shown in FIG. 1 .

The yarn selection specifications in this implementation are:

Road 1: Velvet yarn: 600D/288F black nylon DTY; ground yarn: 150D/72F black nylon DTY

Road 2: Veil: 150D/72F White Nylon DTY

The 3rd way: connecting yarn: 50D/36F white polyester high elastic yarn

In this embodiment, the circular knitting machine is set as follows: the cylinder cutter needle and the cylinder latch needle of the circular weft machine are arranged at intervals of one another, and the ordinary yarn guide and the yarn guide with two yarn guide holes are arranged at intervals of one another.

Circular machine equipment parameters:

Machine size: 24G/25.4mm

Cylinder diameter: 30 inches

Total number of needles: 2256

Number of roads: 54F

As shown in Figure 6, the knitting method in this implementation adopts the 1st, 4th, 7th, 10th, 13th, 16th way to weave the pile layer. As shown in Figure 4, the pile yarn and the ground yarn are fed together with two yarn guide holes. In the yarn guide of , as shown in Figure 5, the ground yarn laying position is high, at the 007 position, and away from the cylinder latch needle a, the pile yarn laying position is low, at the 006 position, and close to the cylinder latch needle a, The cylinder latch needle a rises to the position of the ground yarn laying height 007, and simultaneously hooks the ground yarn and the pile yarn, the ground yarn and the pile yarn are both looped, and the cylinder knife needle b rises to the pile yarn. At the height of 006, the pile yarn is only hooked, and the ground yarn is not woven. The pile yarn descends with the knife needle b to the blade position of the knife needle b, and the pile yarn is cut by the knife needle. Plush, forming two-separate twill raising effect on the fabric surface.

The 2nd, 8th, 14th and 5th, 11th, and 17th knitting plane layers adopt the same surface knitting method as in Example 1, and the veil forms dense, elongated and uniform jacquard loops of the same color on the fabric surface; 3rd, 6th, 9th , 12, 15, 18 way weaving connection layers, adopt the same connection layer weaving method as in Example 1, adopt the tuck method to connect the fabric suede layer and the plane layer before and after the connection yarn, and the connection layer is formed by two complementary weaving tucks. of.

Through the above embodiment, the weaving method of the double-sided structure weft-knitted cut-pile knitted fabric provided by the present invention is adopted, the pile layer terry forming and the cutting loop-forming are carried out at the same time, the production process is simple, and the obtained double-sided structure weft-knitting and cutting The fleece knitted fabric has no exposed bottom phenomenon; the plane layer has different textures, which are flat and dense; the suede layer of the fabric is plump and fluffy, and not easy to lose hair; the fabric structure is dimensionally stable.

It can be understood that the above descriptions are only embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description of the present invention, or directly or indirectly applied to other related The technical field of the present invention is similarly included in the scope of patent protection of the present invention.

Claims (8)

1. A weft knitting cut pile knitted fabric with a double-sided structure comprises a pile face layer, a plane layer and a connecting layer, and is characterized in that the pile face layer of the weft knitting cut pile knitted fabric is formed by knitting ground yarns and pile yarns, the ground yarns form a base fabric of the pile face layer, the pile yarns form piles of the pile face layer, and pile loops of the pile face layer are formed and cut into piles in one step; the plane layer is formed by weaving surface yarns; the connecting layer is a middle layer for connecting the plane layer and the pile surface layer and is formed by weaving connecting yarns.

2. A double-sided structure weft knitted cut pile fabric according to claim 1, wherein said fabric is knitted on a double-sided circular knitting machine having cylinder latch needles and corresponding knitting needle cams, cylinder cutter needles and corresponding knitting needle cams and yarn guides comprising two yarn guide holes.

3. A double-sided weft-knitted cut pile fabric according to claim 1, wherein the pile yarns, ground yarns, connecting yarns and face yarns are made of one or more of cotton, wool, viscose, terylene, chinlon, acrylic fibers and the like.

4. A double-sided weft-knitted cut pile fabric according to claim 1, wherein the face yarns, ground yarns and connecting yarns have a linear density of 50 to 300D and the pile yarns have a linear density of 300 to 1500D.

5. A method of knitting a double-jersey weft-knitted cut pile fabric according to claim 1, comprising the steps of:

(1) the method for weaving the fabric pile surface layer comprises the following steps:

the method comprises the following steps that (1) pile yarns and ground yarns are fed into a yarn guide with two yarn guide holes from different angles, the ground yarn laying position is high and is far away from a needle cylinder latch needle, the pile yarn laying position is low and is close to the needle cylinder latch needle, the needle cylinder latch needle rises to the ground yarn laying height, the ground yarn and the pile yarns are hooked at the same time, the ground yarns and the pile yarns are looped, the needle cylinder cutter needle rises to the pile yarn laying height, only the pile yarn is hooked, the ground yarn is not woven, the pile yarn descends along with the cutter needle and descends to the blade position of the cutter needle, and the pile yarns are cut off by the cutter needle to form piles;

(2) weaving the fabric plane layer by the following method:

the surface yarn is fed into a common yarn carrier, a knitting needle on a dial extends outwards to the outermost end, and a loop on a plane layer retreats from a needle hook of the knitting needle to a needle rod; the knitting needle retracts inwards to hook the veil; with the continuous inward retraction of the knitting needle, the old loop of the plane layer pushes the latch to close, and the new face yarn completes the processes of looping, yarn bending and loop releasing to form a new plane layer loop;

(3) weaving the fabric connecting layer by the following method:

connecting yarns are fed into a common yarn carrier, knitting needles on a dial extend outwards to a tucking position, old coils of a plane layer are still hung on a latch, the connecting yarns are hooked, the knitting needles retract inwards, new connecting yarns and the old coils of the plane layer enter a needle hook together, and the new connecting yarns form a suspended arc in a fabric plane layer; the latch needle on the needle cylinder extends upwards to a tucking position, the old loop of the suede layer is still hung on the latch, the connecting yarn is hooked, the latch needle moves downwards, the new connecting yarn and the old loop of the suede layer enter the needle hook together, and the new connecting yarn forms a suspended arc in the suede layer of the fabric; the fabric connecting layer is regularly knitted by a dial or a needle cylinder, so that the front side and the back side of the fabric are connected.

6. A knitting method of a double-sided structure weft-knitted cut pile fabric according to claim 5, characterized in that said connecting layer is formed by two complementary knitting tucks, that is, two tucks are knitted on the same set of cylinder needles and dial needles, respectively.

7. The knitting method of a weft-knitted cut pile fabric with a double face structure according to claim 5, wherein a height of the cylinder needle of the circular knitting machine where the cutter needle ascends along the needle jack cam is lower than a height of the cylinder latch needle ascends along the needle jack cam.

8. The knitting method of a double-sided structure weft-knitted cut pile fabric according to claim 5, wherein said knitting method of knitting a pile layer of the fabric is a knitting method in which neither latch needle nor cutter needle is raised, a knitting needle does not pick up a yarn, and both a ground yarn and a pile yarn are float-knitted.

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