KR20130020750A - Manufacturing method of yarn and it used manufactured warp knitting woven fabrics - Google Patents

Abstract

PURPOSE: A method for fabricating a yarn for a knitted fabric and a warp-knitted fabric prepared by the same are provided to improve a three-dimensional effect and to reduce defect rate. CONSTITUTION: A method for fabricating a yarn for a warp-knitted fabric comprises: a step of preparing a natural filament yarn or a natural spun yarn(102); a step of primarily braiding the natural filament yarn or the natural spun yarn by S twist and Z twist(104); a step of twisting the braided yarn and repeating twisting in a predetermined thickness(106,108); and a step of stably setting the yarn(110). [Reference numerals] (102) Preparing starting filament yarn or spun yarn; (104) Primarily braiding by an S twist or Z twist technique; (106) Secondarily twisting by combining the S twist and the Z twist as much as highly twisted amount with lowly twisted method; (108) Repeating (104) and (106) steps until a predetermined thickness is achieved; (110) Setting stabilization; (112) Reactively dyeing; (114) DM processing; (AA) Start; (BB) End

Description

The manufacturing method of the yarn and the warp knitted fabric manufactured using the same TECHNICAL FIELD

The present invention relates to a method for producing a yarn capable of producing a yarn for warp knitted fabric using natural fibers, and to a warp knitted fabric produced using the same.

As is well known, in human history, people have used fabrics made from natural fibers obtained from plants, animals, minerals, etc. Recently, with the development of science and technology, various techniques for manufacturing synthetic fibers have been developed. Synthetic fiber accounts for over two thirds of total fiber consumption.

In addition, natural fibers can obtain more textile fibers from plants than animals or minerals. Cotton is widely used for fabric materials, sheets, towels, etc., because of its unique softness and hygroscopicity. Linen obtained from hemp has a beautiful appearance and is widely used as a material for high-quality tablecloths, nepkin and handkerchiefs.

In addition, animal natural fibers include wool, silk, and the like, which are used as high-quality fabrics, and most wool is made of wool, but may be made of camel hair, goat hair, and the like.

These wools are widely used for suits and sweaters because of their warmth and comfort.Since silk is obtained from silkworm cocoons, it has excellent gloss and soft properties and can be dyed with colorful colors. It is used.

On the other hand, mineral fibers are used for industrial purposes in order to utilize the function of special fibers, there are basalt fibers, glass fibers, silica fibers, etc. made by refining raw materials from specific minerals.

Artificial fibers are also made of wood pulp, immature cotton, petroleum compounds obtained by refining crude oil or natural gas. Among the fibers obtained from petroleum, cannons are nylon, polyester, acrylic, Olefins and the like. Nylon is widely used as a material for socks, clothing, mayas, etc. due to its strong strength, good fit, and excellent washability. It is also used as a conveyor belt and a fire hose.

Knit fabrics, on the other hand, use twisted yarns, which are made of wefts called warps and warps called wefts. Here, the warp is fitted into a frame called harnesses in the loom, some warp upwards and some warp downwards, moving the weft into the resulting shed. This flying way forms an intersection, and the fabric can be made by this repetition of movement.

Knit fabrics are also made of a single thread or a set of threads, where the fabric is crossed in such a way that the needles of the knit machine make a loop in the thread and the next loop is inserted into the first loop by the needle. Can be made. Clothes made of such knitted fabrics are elastic and comfortable to give a comfortable feeling, are less wrinkled and have light characteristics.

On the other hand, weaving techniques are also used to make industrial fibers with special properties such as sheets, curtains, headlinings, dream doors, etc., but most of them are used in the form of knitted fabrics (warp and flat). In particular, the fibers used in warp knitted fabrics use chemical fibers in the form of filaments by spinning techniques.

However, the demand for natural fibers and special functional fibers is increasing in the fields of automobiles and industrial materials as eco-friendly high grade materials. Natural fibers and special functional fibers are spun in the process of manufacturing (eg, cotton, wool, aramid, etc.). Filament-like yarns are being made for mineral fibers. Knit fabrics of warp knitted fabrics manufactured using such yarns or mineral fibers have problems of severe cutting and poor products during the production of knitted fabrics.

In producing knitted fabrics with such yarns and mineral fibers, yarns are made by twisting staple fibers in an S-twist or Z-twist manner, and the yarns curl in the direction of the twist. In order to prevent the S-Tightening or Z-Tightening, the heat setting is performed immediately. However, even after the heat setting, the residual torque remains, causing the yarn to entangle twice.

Due to this phenomenon, sizing warping workability, which is a weaving and weaving preparation process, is degraded, loop formation is poor, and cutting occurs when the thread passes through the guide groove.

In addition, in the mineral fiber, severe cutting may occur in the weaving and knitting process, and the dyeing is not good, so that the dyeing of the covering (covering) is used to replace it.

As described above, there are many problems in manufacturing yarns for warp knitted fabrics using natural fibers, and commercialization has not been achieved, and it is urgent to develop a technology for manufacturing yarns for knitted fabrics using such natural fibers.

The present invention is the first twisted filament yarn or spun yarn after each twisted and twisted Z, respectively, and after the second twisted yarn after twisting the twisted S and Z twisted yarn, to prevent curling and cutting phenomena, both twist It is to provide a method for producing a yarn that can improve the three-dimensional effect due to and warp knitted fabric manufactured using the same.

In addition, the present invention can manufacture a yarn of a predetermined thickness by repeating the process of primary twisting, braided yarn and secondary twisting, and after reactive dyeing the second twisted yarn spun yarn (DM) (dimethyl silicon urethane, dimethyl polymer Etc.), to improve the fastness of the yarn to prevent the peeling phenomenon, to provide a method for producing a yarn capable of maintaining the elasticity of the yarn and warp knitted fabric manufactured using the same.

In addition, the present invention by covering the twisted yarn S and Z twisting covering yarn in each direction by screening mineral fibers or special fibers, it is possible to prevent the cutting off of the yarn, dyeing only the covering portion can obtain a dyeing effect In addition, the screening and the covering company to complement the yarn to produce a yarn of excellent characteristics and to provide a warp knitted fabric manufactured using the same.

The objects of the embodiments of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description .

According to an embodiment of the present invention, the first step of preparing a natural fiber filament yarn or a natural fiber spun yarn, and the degree of twisting the prepared natural fiber filament yarn or natural fiber spun yarn according to the S twist method and Z twist method, respectively Alternatively, the second step of the first continuous yarn, the second twisted by the amount of the twisting method with a lot of twist in the twisting method with less twisting twisting while twisting the S-twisted yarn and Z-twisted yarn twisted in accordance with the first continuous And a fourth step of repeatedly performing the second and third steps until the predetermined thickness is obtained, and a fifth step of performing stabilization settings for the yarn manufactured according to the fourth step. Methods of making yarns may be provided.

According to another embodiment of the present invention, the first step of preparing a natural fiber filament yarn or natural fiber spun yarn to cover and screening to make a special covering yarn, and the prepared natural fiber filament yarn or natural fiber spun The second twisting step according to the Z twisting method and the process of twisting and twisting while twisting the S twisted twisted yarn or Z twisted twisted yarn twisted through the second step are repeatedly performed until the preset thickness becomes the S twisting covering yarn and A third step of producing a Z-twist covering yarn, a fourth step of reactively dyeing the prepared S-twist covering yarn and a Z-twist covering yarn, and the S-twist covering yarn by the mineral fiber or a special fiber as the screening In this manner, the Z-twist covering yarn is a stabilization of the yarn prepared according to the fifth step and the fifth step of weaving in the Z-twist method There can be provided a method of manufacturing a yarn comprising a sixth step of performing a coating and a seventh step of performing a coating treatment and a waxing treatment on the manufactured yarn.

According to another embodiment of the present invention, there may be provided warp knitted fabric manufactured using the above manufacturing method.

In the present invention, it is possible to improve the steric effect of the yarn through the twisted yarns of the twisted twisted yarn and Z twisted yarn, to minimize the curling phenomenon of the yarn when forming the loop of the yarn to reduce the yarn manufacturing defect rate, the primary twist, Through the process of weaving and secondary weaving, it is possible to effectively prevent the curling and cutting of the yarn.

In particular, in the case of the optical fiber, it is possible to prevent the bending truncation through the covering method, and can improve the aesthetics by dyeing the covering yarn in place of the optical fiber is not good dyeability.

In addition, by performing DM processing after reactive dyeing, the fastness of the yarn can be improved, the peeling phenomenon of the yarn can be prevented, and the elasticity of the yarn can be effectively maintained.

1 is a step-by-step flowchart showing a process for producing a knitted fabric yarn according to an embodiment of the present invention,
2 is a step-by-step flowchart showing a process of manufacturing a yarn for knitted fabrics according to another embodiment of the present invention;
3 is a diagram illustrating an S-twist method according to an embodiment of the present invention;
4 is a diagram illustrating a Z-twist method according to an embodiment of the present invention;
5 is a diagram illustrating the incorporation of the covering company to the examination in accordance with an embodiment of the present invention.

Advantages and features of the embodiments of the present invention, and methods of achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a step-by-step flowchart showing a process of manufacturing a yarn for knitted fabrics according to an embodiment of the present invention.

Referring to FIG. 1, a natural fiber filament yarn or a natural fiber spun yarn is prepared (step 102). Here, the natural fiber used as the material of the filament yarn may include silk, rayon, and the like, and the natural fiber used as the material of the yarn may include silk, cotton, wool, rayon, hemp, and the like.

Then, the natural fiber filament yarn or the natural fiber spun yarn is firstly twisted in the opposite direction according to the S twisting method or the Z twisting method (step 104). For example, as shown in FIG. 3, the S-twist method means that the fibers are twisted in parallel with the center portion of the S letter, and as shown in FIG. 4, the Z-twist method indicates that the fiber is parallel to the center part of the Z letter. It means arranged twist.

In addition, the primary yarn can be twisted by adjusting the strength and strength to suit the characteristics of the fabric to be manufactured, for example, the yarn of the final twist method (S twist method or Z twist method) of the yarn is another twist method (Z twist method) Or S-twist type) can be twisted more times depending on the ratio of twist than thread.

Next, while twisting the S-twist yarn and the Z-twist yarn, the second twist is performed by the amount of the twisted manner (Z twist or S twist) in a low twist (S twist or Z twist) (step 106).

The process of steps 104 and 106 described above may be repeated until the thickness becomes a predetermined thickness to manufacture the yarn (step 108).

The stabilization setting for the yarn made through step 108 is performed (step 110). Here, the stabilization setting is stabilized by heat setting by high temperature steaming so that the thread can be twisted by applying heat and moisture, and when the thread is twisted, curling occurs as a reaction phenomenon. (Candles), agents (drugs) and the like.

Then, the stabilization set yarn is dyed by reactive dyeing (step 112). Here, reactive dyeing is used for dyeing cellulose fibers such as cotton and hemp, and for dyeing protein fibers such as silk and wool, and dyeing dyes through chemical reactions with the fibers. Heat the salt solution mixed with dye, salt, etc. to the liquid ratio to about 50 ℃, add sodium carbonate and thread, and keep it for about 40 minutes. Take out the dyed thread, rinse it with water, add detergent, boil and rinse again, and drain the water. It may be carried out by drying on a drying stand. Of course, this process can be variously modified as necessary.

Subsequently, DM processing is performed on the dyed yarn (step 114). Here, DM processing means dimethyl silicon urethane treatment, which uses a dimethyl polymer having a viscosity of approximately 900-1100 (cps) and a molecular weight of approximately 3000-4000 (mol). Washing process can be carried out by soaking for approximately 15-25 minutes in a solution of approximately 35-45 ℃ containing 30-50 g of dimethyl polymer per liter for the dyed yarn. Accordingly, the fastness of the thread can be improved, the peeling phenomenon of the thread can be prevented, and the elasticity of the thread can be effectively maintained.

Therefore, the three-dimensional effect of the yarn can be improved through the twisted yarns of the S twisted yarn and Z twisted yarn, and the yarn manufacturing defect rate can be reduced by minimizing the curling phenomenon when forming the loop of the yarn. Through the process of the second continuous yarn, it is possible to effectively prevent the curling and cutting of the yarn.

Next, filament yarns or spun yarns are twisted by S-twist and Z-twist respectively, and the twisted yarns of S-twist and Z-twisted yarns are covered by a covering method with mineral fiber as a screening, and then stabilization setting, dyeing and DM processing are performed. The process of producing the yarn for knitted fabric is demonstrated.

Figure 2 is a step-by-step flowchart showing a process for producing a yarn for knitted fabrics according to another embodiment of the present invention.

Referring to Figure 2, to prepare a special covering yarn and prepare a natural fiber filament yarn or natural fiber spun yarn to cover (step 202). Here, the natural fiber used as the material of the filament yarn may include silk, rayon, and the like, and the natural fiber used as the material of the yarn may include silk, cotton, wool, rayon, hemp, and the like.

Then, natural fiber filament yarn or natural fiber spun yarn is twisted according to the S twisting method or the Z twisting method (step 204). Here, the twisted yarn can be twisted by adjusting the strength and strength to suit the characteristics of the fabric to be manufactured, for example, the yarn of the final twist method (S twist method or Z twist method) of the yarn is another twist method (Z twist method or The twist can be given more times depending on the rate of twist than the thread of the twist type).

In addition, it is possible to manufacture the S-twist covering yarns and Z-twist covering yarns by repeatedly performing the process of weaving while twisting the S-twist yarn or Z-twist yarn to a predetermined thickness (step 206).

Thereafter, the S-twist covering yarn and the Z-twist covering yarn are dyed in a reactive dyeing manner (step 208). Here, reactive dyeing is used for dyeing cellulose fibers such as cotton and hemp, and for dyeing protein fibers such as silk and wool, and dyeing dyes through chemical reactions with the fibers. Heat the salt solution mixed with dye, salt, etc. to the liquid ratio to about 50 ℃, add sodium carbonate and thread, and keep it for about 40 minutes. Take out the dyed thread, rinse it with water, add detergent, boil and rinse again, and drain the water. It may be carried out by drying on a drying stand. Of course, this process can be variously modified as necessary.

Next, the mineral fiber, the special fiber, and the like are screened, and the S twisting covering yarn is twisted in the S twisting manner, and the Z twisting covering yarn is twisted in the Z twisting manner (step 210). Here, the mineral fiber can be used for all materials made of fibers extracted from the mineral material, the special fiber is a fiber manufactured to provide a special function, such as a fiber made of metal yarn, aramid non-combustible yarn, polyurethane, carbon, etc. Can be used. For example, as shown in FIG.

The stabilization setting is performed on the yarn made through the step 210 (step 212). Here, the stabilization setting is stabilized by heat setting by high temperature steaming so that the thread can be twisted by applying heat and moisture, and when the thread is twisted, curling occurs as a reaction phenomenon. (Candles), agents (drugs) and the like.

Subsequently, coating treatment, waxing treatment and DM processing treatment are performed on the dyed yarn (step 214). Here, since the coating treatment and the waxing treatment can be performed like the coating and waxing processes of the yarns proposed in the related art, the detailed description thereof is omitted.

In addition, DM processing means dimethyl silicon urethane (dimethyl silicon urethane) treatment, using a dimethyl polymer having a viscosity of approximately 900-1100 (cps), molecular weight approximately 3000-4000 (mol), The dyed yarn may be rinsed for approximately 15-25 minutes in a solution of approximately 35-45 ° C. containing 30-50 g of dimethyl polymer per liter. Accordingly, the fastness of the thread can be improved, the peeling phenomenon of the thread can be prevented, and the elasticity of the thread can be effectively maintained. Of course, this DM processing can be omitted in another embodiment using a covering yarn.

Therefore, the mineral fiber is used as the screening, and the yarn twisting can be prevented through the covering method of the twisted yarns of the twisted twisted yarn and the twisted twisted yarn of the twisted twist yarn, and the dyeing effect can be improved by separately dyeing the covered portions.

The warp knitted fabric can be manufactured through a manufacturing process according to one embodiment or another embodiment as described above, when the warp knitted fabric is manufactured according to an embodiment through the twisted yarn of S twisted yarn and Z twisted yarn It can improve the three-dimensional effect of the yarn, reduce the yarn manufacturing defect rate by minimizing the yarn curling during the loop formation of the yarn, and the yarn curling phenomenon through the process of primary yarn, plywood and secondary yarn Cut off can be effectively prevented.

In addition, the warp knitted fabric manufactured according to another embodiment can prevent the cutting of the yarn through the covering method of the twisted yarn twisted S and Z twisted yarn with the mineral fiber as a screening, and by dying the cover portion separately , Can improve the dyeing effect.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be readily apparent that such substitutions, modifications, and alterations are possible.

Claims (4)

A first step of preparing natural fiber filament yarn or natural fiber spun yarn,
A second step of first twisting the prepared natural fiber filament yarn or natural fiber spun yarn by varying the degree of twisting according to the S twisting method and the Z twisting method, respectively;
A third step of twisting the second twisted yarn by the amount of the twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted twisted yarns
A fourth step of repeatedly performing the second and third steps until the predetermined thickness is obtained;
A fifth step of performing a stabilization setting on the yarn manufactured according to the fourth step,

Method for producing a yarn for knitted fabrics comprising a.
The method of claim 1,
In the above manufacturing method,
A sixth step of performing reactive dyeing on the prepared yarn,
Further comprising a seventh step of performing a dimethyl silicon urethane (DM) processing treatment for the prepared yarn,
In the seventh step, the washing process is performed by immersing the prepared yarn in a solution of approximately 35-45 ° C. containing 30-50 g of dimethyl polymer per liter for about 15-25 minutes. The manufacturing method of the yarn for knitted fabrics made.
A first step of preparing a special covering yarn and preparing a natural fiber filament yarn or a natural fiber spun yarn to be covered,
A second step of twisting the prepared natural fiber filament yarn or natural fiber spun yarn according to the S twisting method and the Z twisting method, respectively;
A third step of manufacturing the S twist covering yarn and the Z twist covering yarn by repeatedly performing the twisting while twisting the twisted twisted yarn or Z twisted twisted yarn through the second step until a predetermined thickness is obtained;
A fourth step of reactively dyeing the prepared S-twisted covering yarn and Z-twist covering yarn,
A fifth step of weaving the mineral fiber or the special fiber as the S twisting covering yarn in the S twisting manner, and the Z twisting covering yarn in the Z twisting manner;
A sixth step of performing stabilization settings for the yarn made according to the fifth step;
Seventh step of performing coating treatment and waxing treatment on the manufactured yarn
Method for producing a yarn for knitted fabrics comprising a.
A warp knitted fabric manufactured using the method of any one of claims 1 to 3.

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