KR102463941B1 - Manufacturing method of water-repellent blended fabric - Google Patents

Abstract

According to an embodiment of the present invention, a method for manufacturing a water-repellent blended fabric may comprise the steps of: weaving a fabric by using an aramid blended yarn in which rayon, polyester, and aramid fiber are mixed; and processing the woven fabric. The processing step may comprise: a mowing step of removing fine hairs from the fabric; a pre-treatment step of removing impurities from the fabric; a first heat-treatment step of heat-treating the pre-treated fabric; a dyeing step of dyeing the first heat-treated fabric; a resin processing step of water-repellent treating the dyed fabric; and a second heat-treatment step of post-heat treating the resin-processed fabric. According to an embodiment of the present invention, it is possible to provide a clothing blended fabric having improved durability and heat resistance by mixing the aramid fiber with the clothing fiber.

Description

Manufacturing method of water-repellent blended fabric {Manufacturing method of water-repellent blended fabric}

The present invention relates to a method for manufacturing a water-repellent blend fabric.

In general, aramid fibers are aromatic polyamide fibers that are strong in heat and have high durability, and are widely used in aerospace and military applications because of their excellent tensile strength, toughness, heat resistance and elasticity.

Common aramid blended fabrics can be made into welding clothes, work clothes, protective clothes, antistatic clothes, and firefighting suits worn in factories.

However, since the fabric using the blended yarn mixed with aramid is soft to the touch and it is difficult to knit with a machine for general clothing materials, it is inconvenient to use for general clothing such as work clothes or school uniforms.

In addition, when processing a fabric using a blended yarn mixed with aramid, there is a problem in that durability is lowered, and substances harmful to the human body are detected.

It was devised based on the technical background as described above, and an embodiment of the present invention is to provide a blend fabric for clothing with improved durability and heat resistance by blending aramid fibers with fibers for clothing.

In addition, one embodiment of the present invention is to provide a method of manufacturing a water-repellent blended fabric that can be environmentally-friendly waterproof and antifouling treatment on the fabric while improving durability.

The method for manufacturing a water-repellent blended fabric according to an embodiment of the present invention includes weaving a fabric using an aramid blended yarn mixed with rayon, polyester, and aramid fibers, and processing the woven fabric can do. The processing step is a woolen step of removing the fine hairs of the fabric, a pretreatment step of removing impurities of the fabric, a first heat treatment step of heat-treating the pre-treated fabric, a dyeing step of dyeing the first heat-treated fabric, dyed It may include a resin processing step of water-repellent treatment of the fabric, and a second heat treatment step of post-heating the resin-processed fabric.

The resin processing step includes an immersion step of uniformly immersing the preparation solution in the dyed fabric, a dehydration step of pressing and dehydrating the fabric, and a drying step of drying the fabric, wherein the preparation solution is at least one softening agent, It includes a durability maintenance agent, a catalyst, and a water repellent, and the water repellent may be non-fluorine-based.

The softening agent, durability maintenance agent, catalyst, and water repellent agent may be mixed in a ratio of 24:12:4:60, respectively.

The process temperature of the preparation may be 140 °C to 160 °C.

The combing step includes the step of introducing the fabric, removing the hair while in contact with the upper and lower surfaces of the fabric, sensing the end of the fabric, and spraying water on the end can do.

It may include providing a flame to the outer surface of the fabric to remove fine hairs, and removing the sprayed portion.

According to any one of the means for solving the problems of the present invention described above, it is possible to provide a blended fabric for clothes with improved durability and heat resistance by blending the aramid fiber with the fiber for clothes.

In addition, according to any one of the problem solving means of the present invention, it is possible to provide clothes that can be worn for a long time by reducing damage to clothes that are frequently worn, such as uniforms or school uniforms.

In addition, according to any one of the problem solving means of the present invention, it is possible to provide a method for easily manufacturing an aramid blend fabric that can be used for general clothing.

In addition, according to any one of the means for solving the problems of the present invention, it is possible to provide a method for producing an aramid blend fabric that can be environmentally-friendly waterproof and antifouling treatment on the fabric while improving durability.

1 is a flowchart for explaining a method of manufacturing an aramid blend fabric according to an embodiment of the present invention.
Figure 2 is a flowchart for explaining in more detail the step of processing the fabric in the manufacturing method of the aramid blend fabric according to an embodiment of the present invention.
Figure 3 is a flow chart for explaining in more detail the wool step in the manufacturing method of the aramid blend fabric according to an embodiment of the present invention.
Figure 4 is a flow chart for explaining in more detail the resin processing step in the manufacturing method of the aramid blend fabric according to an embodiment of the present invention.

It should be noted that technical terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. In addition, the technical terms used in this specification should be interpreted in the meaning generally understood by those of ordinary skill in the art to which the present invention belongs, unless otherwise defined in this specification, and excessively inclusive. It should not be construed in the meaning of a human being or in an excessively reduced meaning. In addition, when the technical terms used in this specification are incorrect technical terms that do not accurately express the spirit of the present invention, they should be understood by being replaced with technical terms that can be correctly understood by those skilled in the art. In addition, general terms used in the present invention should be interpreted as defined in advance or according to the context before and after, and should not be interpreted in an excessively reduced meaning.

Also, as used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "consisting of" or "having" should not be construed as necessarily including all of the various components or various steps described in the specification, and some components or some of the steps are included. It should be construed that it may not, or may further include additional components or steps.

1 is a flowchart for explaining a method of manufacturing an aramid blend fabric according to an embodiment of the present invention.

Referring to Figure 1, the method for manufacturing an aramid blend fabric according to an embodiment of the present invention may include the step of weaving the fabric using the aramid blend yarn (S100), and the step of processing the fabric (S300). .

Blended yarn refers to yarn spun by mixing at least two or more different fibers. As the blended yarn is manufactured, new performance can be imparted to the fiber, and raw material cost can be reduced compared to using a single fiber.

The step of weaving the fabric using the aramid blend yarn (S100) may be performed including the weaving step and the weaving step.

The warping step includes a process of preparing a predetermined number of warp yarns (warp yarns) according to the length of the fabric to be manufactured so that the length and tension are uniformly arranged to have a constant width, and then wound around a drum or beam.

That is, in the canon stage, the length of the warp is uniformly determined according to the length of the aramid blend fabric to be manufactured, and the warp is released from one or more bobbins or cones and arranged in parallel according to the predetermined length, width, and density conditions. wound with uniform tension.

The weaving step is carried out including the process of opening the warp wound in the canon step up and down using a seed light to stagger each other, and then sandwiching the weft yarn (weft yarn) therebetween. At this time, the process of inserting the weft thread can be repeated by pushing the inserted weft thread between the warps and opening it in the opposite direction.

On the other hand, the weaving process is not necessarily performed only by the method described above, and if it is made using the aramid blended yarn manufactured by the aramid blended yarn manufacturing process, it does not matter whether it is performed by any conventional weaving technology.

The step of processing the fabric (S300) may be a step of removing the fine hairs (fur) of the woven fabric using a blended yarn, dyeing it, and performing a processing treatment to give a function desired by the consumer. The step (S200) of processing the fabric according to an embodiment of the present invention may include a woolen step, a pretreatment step, a first heat treatment step, a dyeing step, a processing step, and a second heat treatment step that are sequentially performed.

Accordingly, the aramid fabric according to an embodiment of the present invention can be used in everyday clothes that require durability, such as school uniforms, military uniforms, and work clothes, as well as special clothes such as firefighting suits.

In addition, since the aramid blend fabric according to an embodiment of the present invention is maintained at the same level as the general medical fabrics, such as the touch and the dressiness, it is possible to use it for everyday wear, while improving the friction and abrasion resistance.

Figure 2 is a flowchart for explaining in more detail the step of processing the fabric in the manufacturing method of the aramid blend fabric according to an embodiment of the present invention.

Referring to FIG. 2, the step of processing the fabric is sequentially conducted a woolen step (S310), a pretreatment step (S320), a first heat treatment step (S330), a dyeing step (S340), a resin processing step (S350), It may include a second heat treatment step (S360), a finishing step (S370), and a completion inspection step (S380).

The wooling step (Singeing, S310) may include a process of burning the fine hairs on the surface of the fabric manufactured through the step S100 of FIG. 1 to make it glossy. Accordingly, the feel of the fabric may be improved, and glossiness may be improved. In addition, as the wool step is performed, the dye, and the preparation solution may be uniformly permeated into the fabric in the post process. In addition, the hair burning step can prevent pilling and improve the appearance of the product after dyeing.

The pre-treatment step (desizing, S320) may be a process of removing impurities from the fabric that has undergone the wool step. The pretreatment step may include desizing, refining, bleaching, and mercerizing processes that are sequentially performed.

Desizing is the process of removing the size adhering to the fabric. Sizing agent is a chemical used to reduce the generation of static electricity and damage caused by friction in the weaving process, and can reduce the penetration of dyes or drugs in the dyeing step. By the desizing process of removing such a size agent, the dye can be uniformly permeated into the fabric. For example, starch and its derivatives are used as the sizing agent, and the sizing agent can be removed by swelling with water. However, the present invention is not limited thereto, and an oxidizing agent or the like may be used.

Scouring is the process of removing impurities from fibers. For example, natural fibers such as wool, cotton, and silk may contain various impurities from the growth process. In addition, the artificial fiber may contain impurities such as a size agent and an oil agent to prevent damage to the fiber. In addition, impurities such as machine oil, rust, and dust may be generated during the weaving operation. Refining is a process of removing the above-mentioned impurities, and refining may include a surfactant including a surfactant, but is not limited thereto.

Bleaching is the process of removing pigments contained in natural or man-made fibers. Natural or man-made fibers are not pure and may contain some pigment. These pigment impurities may not be removed by the refining process. Accordingly, when white is required, or in the case of a fabric dyed with a pale light color, the aforementioned dye impurities can be removed through a bleaching process before the dyeing step. Accordingly, it is possible to increase the color development rate in the dyeing step.

Mercerizing may be a process of giving gloss, hygroscopicity, and tension to the fabric using caustic soda or the like. Accordingly, the glossiness, hygroscopicity, and tension of the fabric can be improved, and the quality and performance of the product can be improved.

The first heat treatment step ( S330 ) may be performed to stabilize defects due to the width of the fabric spreading during dyeing and shrinkage during final processing. For example, the pre-treated fabric may be heat-treated at a preset temperature and time. In this case, the orientation and crystallinity of the fabric may be changed according to the molecular change of the polymer constituting the fabric by heat. Accordingly, the dyeing uniformity and dimensional stability of the fabric can be secured, and the quality of the fabric can be improved by improving the appearance and feel.

The dyeing step (S340) may be performed using at least two or more dyeing processes according to the composition fibers and characteristics of the fabric. The dyeing step according to an embodiment of the present invention may include a pad dry (pad dry) and a pad steamer (pad steamer) process.

The pad dry process is a process in which the white cloth is immersed in a salt solution dissolved in water so that the dye can easily adhere to the fiber, and then only the desired amount is applied to the cloth and dried, and only the dye is attached to the fiber. Specifically, the pad dry process is sequentially carried out back cloth type, immersion (padding bath), compression dehydration (manle), pre-drying (gas dry), main drying (dry chamber), cooling (cooling), and This may include loading.

The pad steamer process is a process to develop a vivid color while dislodging the vat dye and reactive dye attached to cotton and rayon through soaping and removing the prepared and non-fixed dye after color development. Here, the soaping is a process of treatment with hot soap solution at the end of dyeing or finishing processing. By going through the soaking process, the orientation of the dye in the fabric can be stabilized.

The resin processing step (S350) is a step of drying the dyed fabric by giving a processing function desired by the consumer. For example, the processing function desired by the consumer may be water repellent, antifouling, antibacterial, antistatic, and flexible processing.

The processing step (S350) according to an embodiment of the present invention may include an immersion step, a dehydration step, and a drying step. Accordingly, a fabric having a processing function desired by the consumer can be produced. In addition, while having a waterproof and antifouling function, excellent durability, an eco-friendly fabric can be produced. This processing step (S350) will be described in detail with reference to the following drawings.

The second heat treatment step (S360) may include a process of drying the resin-treated aramid blend fabric by hanging it on a tenter to fix the width to a constant value. In this case, in the drying step, the temperature can be raised to about 180° C. to 200° C. in a situation where both sides of the aramid blend fabric are held with pins or clips to maintain a constant width in the weft direction.

The finishing (super finish) step (S370) may include a process of finishing the fabric surface uniformly by super-trimming the fabric. In addition, it may include a step of infiltrating the fabric into the kier (Kier) and foaming. That is, after winding the aramid blend fabric on a roll, it is possible to perform a process of removing wrinkles of the fabric and smoothing the surface by heating it with hot water.

The completion inspection step (S380) is a step of inspecting the fabric before shipping the fabric as a complete product.

On the other hand, if the aramid blend fabric produced as above is used, it can be used for everyday clothes that require durability, such as school uniforms, military uniforms, and work clothes, as well as special clothes such as firefighting suits.

At this time, the aramid blend fabric is maintained at the same level as the general medical fabric, such as the feel and dressiness, so that it can be used for everyday wear, while improving friction and abrasion resistance.

Figure 3 is a flow chart for explaining in more detail the wool step in the manufacturing method of the aramid blend fabric according to an embodiment of the present invention.

Referring to FIG. 3 , the combing step may include introducing the fabric ( S311 ) and removing the fine hairs of the fabric while in contact with the outer surface of the fabric ( S312 ).

In general, wool is a process of constantly burning the fine hairs existing on the surface of the fabric to be dyed with a predetermined color. At this time, the fine hairs on the upper and lower sides of the fabric are removed with a brush before removing the fine hairs with a flame.

Thereafter, it is possible to detect the end of the fabric from which the fine hair is removed with a brush (S313), and spray water to the end (S314). Thereafter, by providing a flame to the outer surface of the fabric, it is possible to remove the fine hairs at the end of the fabric (S315). For example, when removing the fine hairs of the fabric with a brush, there is a great difficulty in removing the fine hairs at the ends. For example, the fine hairs in the central part of the fabric are pushed to the ends so that there may be a lot of threads at the ends. Wet the ends with water in advance to prevent the problem of catching fire when hairs are removed with a flame.

It may further include a step (S316) of detecting the water-wetted part. After spraying water by detecting the end, it is possible to detect the part wetted by the spray again. This is to prevent the thread present at the end from being ignited by the flame and at the same time completely remove the thread part.

Figure 4 is a flow chart for explaining in more detail the resin processing step in the manufacturing method of the aramid blend fabric according to an embodiment of the present invention.

4 , the resin processing step may include an immersion step (S351), a dehydration step (S353), and a drying step (S355).

The immersion step (S351) is a step of uniformly immersing the preparation solution in the dyed fabric. In this case, the preparation may include one or more softening agents, durability maintenance agents, catalysts, and water repellents. For example, the softening agent, the durability maintaining agent, the catalyst, and the water repellent agent may be mixed in a ratio of 24:12:4:60, respectively.

As shown in [Table 1], waterproofing and durability were evaluated by setting the ratio of the softening agent, the durability maintaining agent, the catalyst, and the water repellent agent differently. As for the waterproof rating, a rating from 1 to 10 was given according to the elapsed time from distributing a certain amount of water, beverage, etc. to permeation into the fabric. The closer the waterproof rating was to 1, the lower the waterproofness, and the closer the waterproof rating was to 10, the higher the waterproofness was. For durability, tensile strength and tear strength were measured to measure and compare the durable performance of fabrics. Durability grades were graded from 1 to 10 according to the measured values of tensile strength and tear strength. The closer the durability rating was given to 1, the lower the durability, and the closer to 10, the better the durability was evaluated. Here, the process temperature may be set to 140 °C to 160 °C, and the working speed may be set to any one of 15 m/min to 25 m/min. As a result of the evaluation, the weight% of the softening agent, the durability maintaining agent, the catalyst and the water repellent were mixed in a ratio of 24:12:4:60, respectively, and the waterproof and durability of the processed fabric was evaluated the most.

Ratio of preparation solution (softening agent: durable maintenance agent: catalyst: water repellent) (wt%) waterproof durability 36:18:6:40 5 6 26:18:6:50 6 8 24:12:4:60 9 8 18:9:3:70 9 3

Here, the softening agent may be used to improve tear strength. For example, the softening agent may be a solution in which PS35 and FAS NEW are mixed in a weight ratio of 3:1. In this case, a better immersion effect can be exhibited.

Durability maintenance agents can be used to improve the shrinkage of the fabric and to maintain performance after washing. The durability maintenance agent is suitably mixed with the catalyst in a ratio of 3:1. The shrinkage rate of the fabric could be improved by the durability maintenance agent and the catalyst, and the water repellent agent could be more easily immersed in the dyed fabric.

Water repellents can be used to impart waterproof and antifouling properties to fabrics. The water repellent may be non-fluorine (C0). For example, as a water repellent, ZELAN R3 may be mixed at a ratio of 60%. The raw materials of ZELAN R3 are non-GMO materials and non-food-source feedback. Oeko-Tex Standard 100 and ZDHC (Zero Discharge of Hazardous Chemicals) Joint Roadmap MRSL (Manufacturers) All conditions of the Restricted Substance List) are met. Accordingly, compared to the case of using a fluorine-based water repellent agent, it is possible to eco-friendly water-repellent and antifouling treatment to the fabric while improving durability.

Next, it may include a dehydration step (S353) of compressing and dewatering (mangle) the fabric in which the preparation solution is uniformly immersed in a mangle. The fabric in which the preparation solution is uniformly dipped can be squeezed and dehydrated by squeezing the mangle. The dewatering step can remove moisture from the fabric within a range that does not damage the fabric.

Finally, it may include a drying step (S355) of drying the dehydrated fabric. The dehydrated fabric may be naturally dried to prevent damage to the fabric due to heat shrinkage during machine drying. In this case, in order to prevent the fabric from being wrinkled, it may be dried by spreading the fabric so that there is no overlapping place.

As described above, a fabric having a processing function desired by a consumer can be produced. That is, it has a waterproof and antifouling function, has excellent durability, and an eco-friendly fabric can be manufactured.

Although the present invention has been described through preferred embodiments as described above, the present invention is not limited thereto, and various modifications and variations are possible without departing from the concept and scope of the following claims. Those in the technical field to which it belongs will readily understand.

Claims (6)

Rayon, polyester, and aramid blended yarn mixed with aramid fibers
Weaving a fabric using; and
processing the woven fabric,
The processing step is,
a woolen step of removing the fine hairs of the fabric;
a pretreatment step of removing impurities from the fabric;
A first heat treatment step of heat-treating the pre-treated fabric;
Dyeing step of dyeing the first heat-treated fabric;
A resin processing step of water-repellent treatment of the dyed fabric;
A second heat treatment step of post-heat treatment of the resin-processed fabric,
The resin processing step,
An immersion step of uniformly immersing the preparation solution in the dyed fabric;
a dewatering step of manging the fabric; and
comprising a drying step of drying the fabric,
The preparation liquid comprises at least one softening agent, a durability maintenance agent, a catalyst and
contains a water repellent;
Based on the total weight of the preparation,
The softening agent, durability maintenance agent, catalyst, and water repellent are each 24:12:4:60.
mixed in % by weight,
The water-repellent agent is a water-repellent blended fabric, characterized in that it is non-fluorine-based.
manufacturing method. delete delete The method of claim 1,
The process temperature of the preparation solution is 140 ℃ to 160 ℃ method for producing a water-repellent blended fabric.
The method of claim 1,
The moso step is,
introducing the fabric;
removing the fine hair while in contact with the upper and lower surfaces of the fabric;
sensing an end of the fabric; and
A method of manufacturing a water-repellent blended fabric comprising the step of spraying water on the end.
6. The method of claim 5,
removing fine hairs by providing a flame to the outer surface of the fabric; and
Method for producing a water-repellent blended fabric comprising the step of removing the fine hairs of the sprayed end.

Images