KR102508178B1 - Manufacturing method of pants having anti-fouling coating and functional pants manufacturing thereof - Google Patents

Abstract

According to the present invention, a coating layer containing a copolymer which is both hydrophilic and hydrophobic as a main ingredient is formed on a fabric. A functional fabric manufactured according to the present invention has the effects of significantly increasing fastness of the coating layer, especially washing fastness and abrasion resistance, while satisfying anti-fouling properties, by mixing highly hydrophilic nanofibers with a coating liquid forming the coating layer. In addition, the functional fabric manufactured according to the present invention has the aforementioned effects, and can be used in bottoms such as jeans, suits, and uniforms worn in daily life, as well as in various textile products, for example, clothing such as daily wear, work clothes, gym clothes, and suits, car seats, construction fibers, and interior fabrics. The method for manufacturing anti-fouling coated pants comprises the following steps: preparing a plurality of fabrics; applying an anti-fouling coating liquid; heat treating the coating liquid; and manufacturing pants.

Description

Manufacturing method of pants with anti-fouling coating and functional pants manufactured therefrom

The present invention relates to a method for manufacturing antifouling-coated trousers and functional trousers manufactured therefrom, and in detail, can impart excellent oil repellency, antifouling properties and stain release properties to the fiber fabric constituting the trousers, and at the same time, for washing. It relates to a method for manufacturing antifouling coated pants having an antifouling coating layer having excellent fastness and functional pants manufactured therefrom.

The main causes of contamination of fabrics such as pants, clothing, carpets, and car seats are lipids generated from the human body, oil components derived from food, and dust in the air. As another cause of contamination, there is a phenomenon in which once desorbed (contaminants) are reattached to fibers during washing.

Antifouling treatment for textiles can be divided into processing that makes it difficult for contamination to adhere (Soil Guard processing, SG processing) and processing that makes adhered contamination easy to fall off (Soil Release processing, SR processing).

In general, the processing that makes it difficult for contamination to adhere is to cover the surface of the fiber with a thin film using a fluorine-based polymer, make the unevenness on the surface of the fiber somewhat flat, and at the same time extremely reduce the surface free energy, thereby reducing the fiber and oily Reduce the contact of contamination.

The process of making the adhered dirt easy to fall off is a method of hydrophilizing the surface of the fiber with a hydrophilic polymer so that it is easily fused with detergent liquid during washing to easily remove dirt and to prevent re-contamination due to oily contamination during rinsing.

Such processing needs to use the most appropriate processing method depending on the use of the textile product, the environment, or expected contaminants. For example, when oil contamination is the main contaminant, such as work clothes or aprons, SG processing that does not adhere contaminants is effective. In addition, for food contaminants such as juice, curry, and pasta dishes such as shirts, blouses, and children's clothes, SR processing is effective so that contaminants can be easily removed by washing. In addition, there are cases in which contaminants are transferred to other clothes during washing together with the textile products to which contaminants are attached. In this case, processing having recontamination prevention is required.

The most common processing agent used for such processing is a fluorine-based antifouling agent. Fluorine-based antifouling agents include an SG processing agent that repels contaminants to prevent adhesion of contaminants, and an SR processing agent that facilitates removal of contaminants from fibers by washing. In the field of SG processing, fluorine-based antifouling agents are also called water- and oil-repellent agents, and the hydrophobic fluorine-based resin film wraps each fiber to lower the surface tension of the fiber than that of water or oil, so it has excellent water and oil repellency for the fiber. products can be given. Therefore, even if contaminants adhere, they remain on the surface of the fiber in the form of water droplets and can be easily removed by shaking them off. It is a very excellent processing method that prevents rain, sewage, juice or food from temporarily adhering to and contaminating textile products.

However, these fluorine-based antifouling agents have a problem in that the contaminants remain on the fibers when the viscosity of the contaminants is high or when the contaminants are left for a long time after being attached. In addition, when the coating layer itself has low durability and is destroyed through friction or abrasion, there is a disadvantage in that contaminants are easily attached to the destroyed portion or difficult to remove. Here, since most of the fluorine-based antifouling agents have high lipophilicity (hydrophobicity), there is also a problem that it is difficult for contaminants to be separated from the hydrophilic washing liquid.

Republic of Korea Patent Registration No. 10-2359633 (registered on February 03, 2022)

The present invention has been made to solve the above problems, and in detail, a coating layer containing a copolymer having both hydrophilic and hydrophobic properties as a main component is formed on a fabric, and nanofibers having high hydrophilicity are mixed with the coating liquid constituting the coating layer. The present invention relates to a method for manufacturing antifouling-coated pants with greatly improved fastness to washing, particularly washing fastness and abrasion resistance of the coating layer, and functional pants manufactured therefrom.

The present invention relates to a method for manufacturing antifouling coated pants and functional pants manufactured therefrom.

One aspect of the present invention, a) any one or a plurality of fabrics selected from denim, lycra, flat woven, flat tricot, double raschel, tricot suede, tricot, circle knit, mesh, DNB mesh, and sinker pile preparing; b) coating the fabric with an antifouling coating solution containing a fluorine-containing copolymer and nanofibers; c) heat-treating the coating solution; and d) manufacturing trousers by cutting and sewing the fabric.

In the present invention, the fluorine-containing copolymer includes any one or a plurality of fluorine-containing monomers selected from a fluoroalkyl group and a fluoroalkenyl group; Acetoacetoxyethyl acrylate, acetoacetoxyethyl methacrylate, acetoacetoxypropyl acrylate, acetoacetoxypropyl methacrylate, N-(2-acetoacetoxyethyl)acrylamide, N-(2-acetoacetic acid) any one or a plurality of acetoacetyl group-containing monomers selected from hydroxyethyl) methacrylamide, vinyl acetoacetate, and allyl acetoacetate; And any one or a plurality of acrylate group-containing monomers selected from 3-chloro-2-hydroxypropyl methacrylate, 3-chloro-2-hydroxypropyl acrylate, glycerol monomethacrylate and glycerol monoacrylate; It is characterized in that it comprises a repeating unit derived from.

In addition, the nanofibers are characterized in that they are silk fibroin nanofibers, and the antifouling coating solution comprises 10 to 30 parts by weight of nanofibers and 50 to 500 parts by weight of solvent based on 100 parts by weight of the fluorine-containing copolymer.

Here, the antifouling coating liquid further comprises any one or a plurality of additives selected from water and oil repellent agents, anti-wrinkle agents, anti-foaming agents, flame retardants, crosslinking agents, antistatic agents, softeners, antibacterial agents, pigments and paints. do.

In the present invention, step b) is characterized in that the antifouling coating agent is coated on the fabric at 10 to 200 g / m 2, and step c) is heat-treated at a temperature of 100 to 200 ° C.

In addition, the step d) may include: d1) drawing the boundary line of each part constituting the pants on the fabric; d2) cutting the fabric along the boundary line; d3) forming the shape of trousers by sewing the plurality of cut fabrics; and d4) attaching buttons and zippers to the sewn trousers.

Another aspect of the present invention relates to functional pants manufactured by the manufacturing method according to the above.

The functional pants prepared according to the present invention form a coating layer mainly composed of a copolymer having both hydrophilic and hydrophobic properties on the fabric, but by mixing nanofibers with high hydrophilicity in the coating liquid constituting the coating layer, while satisfying antifouling properties, fastness of the coating layer, In particular, it has the effect of significantly increasing washing fastness and abrasion resistance.

As the functional pants manufactured according to the present invention have the above effects, they can be used not only for bottoms such as jeans, suits and uniforms worn in everyday areas, but also for various textile products such as everyday clothes, work clothes, gym clothes, and suits. In addition, it can be widely used in vehicle car seats, construction textiles, and interior fabrics.

1 shows a functional pants manufactured according to the present invention.

The method for manufacturing antifouling-coated pants according to the present invention and the functional pants manufactured therefrom will be described in more detail with reference to the drawings and specific examples below. However, the following specific examples or examples are only one reference for explaining the present invention in detail, but the present invention is not limited thereto, and may be implemented in various forms.

Also, unless defined otherwise, all technical and scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in description is merely to effectively describe a particular embodiment and is not intended to limit the invention.

In addition, the drawings introduced below are provided as examples to sufficiently convey the spirit of the present invention to those skilled in the art. Therefore, the present invention may be embodied in other forms without being limited to the drawings presented below, and the drawings presented below may be exaggerated to clarify the spirit of the present invention. Also, like reference numerals denote like elements throughout the specification.

Also, the singular forms used in the specification and appended claims may be intended to include the plural forms as well, unless the context dictates otherwise.

The method for manufacturing antifouling-coated pants according to the present invention is a) selected from denim, lycra, flat woven, flat tricot, double raschel, tricot suede, tricot, circle knit, mesh, DNB mesh and sinker pile Preparing any one or a plurality of fabrics; b) coating the fabric with an antifouling coating solution containing a fluorine-containing copolymer and nanofibers; c) heat-treating the coating solution; and d) manufacturing pants by cutting and sewing the fabric.

The step a) is a step of preparing a fabric to be coated with an antifouling coating agent, which will be described later, and the fabric is not limited to a type as long as it can be used for clothing, industrial use, or other miscellaneous goods in the art.

Examples of such fabrics include denim, lycra, flat woven, flat tricot, double raschel, tricot suede, and tricot. Cut), Circular Knit, Mesh, DNB MESH (Space Fabric), Sinker Pile, etc. These fabrics vary depending on the use of the fabric, but can be used alone or in two or more types. It may also be a woven composite.

For example, when a sportswear bottom is manufactured with the above fabric, a flat woven fabric made of polyurethane fiber is used to increase elasticity in a part requiring elasticity, and a mesh fabric made of cotton or deformed cross-section fiber is used to increase absorbency. It is also possible to further enhance the functionality by applying it.

In the present invention, the type of fibers constituting the fabric is also not limited. Examples of the fibers constituting the fabric include natural fibers such as cotton, hemp, wool, and silk, semi-synthetic fibers such as rayon and lyocell, and synthetic fibers such as polyolefin, polyamide, polyester, polyacrylic, and polyimide. may include, and these may also be used alone or fibers in which two or more types of fibers are plied.

Next, a step of forming an antifouling layer may be performed by coating the fabric prepared as described above with an antifouling coating solution including a fluorine-containing copolymer, a solvent, and nanofibers.

The antifouling coating liquid is attached to the surface of the fibers and filaments constituting the above-described fabric to impart antifouling properties to the fabric itself, and in the present invention, a process of pre-treating the fabric before forming an antifouling layer on the fabric may be preceded as needed. there is.

The pretreatment is to form macroscopic etching on the surface of the fiber by physically or chemically treating the surface of the fiber, and the antifouling coating solution is formed by increasing nano-sized irregularities in the fiber through etching or introducing a hydrophilic group into a polymer constituting the fiber. It can bring about the effect of further increasing the adhesion of.

As described above, the pretreatment may include a chemical method of etching with acid or alkali and a physical method of etching using corona or plasma according to the etching principle, and it is more preferable to apply the physical method.

Etching through the physical method as described above has the advantage that it is faster than the wet surface treatment method and does not require drying, and the surface modification of the fibrous polymer using plasma has the following process advantages. First, only the surface can be uniformly processed without changing the original properties of the substrate, and secondly, etching is possible in a short processing time (within and outside a few minutes). Thirdly, since it is a dry process, water is not required and no waste is generated. Fourth, separate processing before etching or post-processing after etching is not required, and etching can be completed in a single process. Fifth, it uses less power and can achieve a great effect with a small amount of monomer or gas.

In the present invention, the pretreatment conditions are not limited, but in particular, plasma polymerization or surface modification is possible because electrons, cations, anions, radicals, etc., and radicals and ion species with high energy and activity are generated in the plasma treatment, and plasma treatment gas or monomers It may vary depending on the type, concentration, and plasma process conditions, and if the chain is long, it is not easy to introduce a gas phase and the reaction activity in the plasma may be reduced.

In other words, plasma treatment greatly changes the generated material depending on the conditions, and not only one of the reactions occurs, but is a complex system in which other reactions in addition to the leading reaction are possible, so the type of gas, supply amount, pressure, power, frequency, and processing time It is desirable to adjust the back to a certain range.

Specifically, the plasma treatment uses a mixture of two or more of argon, nitrogen, oxygen, CF ₄ , and CDA gas at a pressure of 100 to 1,000 torr as a plasma gas, and is a remote method of a glow discharge region with an output frequency range of 20 to 60 KHz. As the plasma device, it is preferable to use a known atmospheric pressure plasma device.

In particular, it is preferable to use a mixed gas with a volume ratio of 10 to 100: 1 to 5 of nitrogen and oxygen, respectively, for stable atmospheric plasma treatment. As a result, the etching effect on the surface of the fiber is partially concentrated, resulting in a phenomenon in which holes are formed on the surface.

In addition, it is preferable to proceed with a device output of 1 to 3 kW, an output frequency of 20 to 60 kHz, and a treatment time of 5 to 60 seconds per unit area during surface treatment. If it is out of the above condition range, etching formation on the surface of the fiber by plasma treatment is not performed properly, and if it exceeds the above range, etching formation on the fiber surface is partially concentrated, resulting in a hole on the surface of the fabric or between the weft yarn and the warp yarn. Sparks may occur in the space of the fabric and cause damage to the tissue.

In the present invention, the fluorine-containing copolymer is for imparting antifouling properties to fibers, and may include a polymer obtained by polymerizing a hydrophilic monomer and a hydrophobic monomer onto a fluorine-containing monomer.

In general, antifouling processing is processing that makes it difficult for stains to adhere to textile products or makes it easy to remove adherent stains by washing. Depending on the contamination, the most appropriate method should be used.

For example, when the main contamination is oil contamination of work clothes, etc., SG processing to prevent adhesion to fibers is effective. SR processing is effective for food contamination such as juice and curry such as shirts and children's clothes. In the case of simultaneous washing of soiled textile products, processing to prevent reattachment is required.

Fluorine-based antifouling agents used to prevent adhesion of water-based or oil-based stains or improve detachability during washing can prevent these stains from attaching to and penetrating the fiber surface by imparting surface tension lower than that of water or oil to the fiber surface. there is.

In particular, the fluorine-based SG finishing agent is a water- and oil-repellent finishing agent and forms a hydrophobic fluorine-based resin film on each fiber to lower the surface tension of the fiber surface. Accordingly, it imparts excellent water repellency and oil repellency to textile products and is an excellent antifouling agent that easily removes stains by remaining in the form of liquid droplets on the surface of textiles even when stains are attached.

However, if the stain is highly viscous or adhered or penetrated by friction or abrasion and left for a long time, it may remain on the fiber. In this case, it is effective to use SR processing agent.

More specifically, when the SR processing agent is worn (in the air), the hydrophobic fluorine component on the surface of the fiber is oriented to the outside (air side) to form a strong water and oil repellent film, and the copolymerized hydrophilic component is inside (fiber side) is oriented to

On the other hand, during washing (in water), the fluorine component is oriented to the inside (fiber side) and the hydrophilic component is oriented to the outside (water), thereby making the fiber surface hydrophilic. By these mechanisms, contamination on the fiber surface is extruded into the water and easily removed from the fiber surface.

Therefore, the structure of the polymer selectively changes according to the surrounding conditions of the fabric, and as a result, the surface of the fiber has a mechanism that changes to hydrophilic and lipophilic, so that excellent stain resistance and stain removal can be obtained, which can be flip-flop. Flop) structure.

The polymer having the flip-flop structure as described above is basically a structure having both a hydrophilic functional group and a hydrophobic functional group in a molecule, and specifically, may be a copolymer in which a fluorine-containing monomer, an acetoacetyl group-containing monomer, and an acrylate group-containing monomer are polymerized. there is.

In the present invention, the fluorine-containing monomer is a monomer imparting hydrophobicity to the polymer, and may specifically be a monomer having a fluoroalkyl group or a fluoroalkenyl group having 2 to 30 carbon atoms.

Such monomers include, for example, 1,1,2,2-tetrafluoroethyl-2,2,2,3-tetrafluoropropyl ether (TTE), bis(2,2,2-trifluoroethyl) Ether (BTFE), 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether (TFTFE), methoxynonafluorobutane (MOFB), ethoxynonafluorobutane ( EOFB) and the like, and in addition to these, a fluoroether monomer in which part or all of hydrogen is substituted, a fluorovinylether monomer, and the like may be further included. In addition, the above monomers may be used alone or in a mixture of two or more.

Since the acetoacetyl group-containing monomer has excellent adhesion to the object to be treated, especially fibers, and has an active methylene group in the molecule, it reacts well with the crosslinking agent and has an effect of improving washing fastness.

The acetoacetyl group-containing monomer may have a carbon-carbon double bond in addition to the acetoacetyl group, and examples of such monomers include acetoacetoxyethyl acrylate, acetoacetoxyethyl methacrylate, acetoacetoxypropyl acrylate, Acetoacetoxypropyl methacrylate, N-(2-acetoacetoxyethyl) acrylamide, N-(2-acetoacetoxyethyl) methacrylamide, vinyl acetoacetate, allyl acetoacetate, etc. are mentioned. In addition, the above monomers may be used alone or in combination of two or more.

The acrylate-containing monomer is a monomer having a vinyl group as a base and, if necessary, a hydroxyl group, which is a hydrophilic group. As described above, since it exhibits hydrophilicity, a flip that can selectively express hydrophilicity or hydrophobicity on the surface according to the surrounding environment of the coating layer. - Can have a flop structure.

Examples of the acrylate monomer include ethylenically unsaturated monocarboxylic acids such as 3-chloro-2-hydroxypropyl methacrylate, 3-chloro-2-hydroxypropyl acrylate, (meth)acrylic acid, crotonic acid and cinnamic acid. There are acrylic monomers such as monoesters of bone and glycerol, and these may also be used alone or in combination of two or more.

The copolymer is preferably polymerized by mixing 0.1 to 10 parts by weight of an acetoacetyl group-containing monomer and 30 to 50 parts by weight of an acrylate group-containing monomer with respect to 100 parts by weight of a fluorine-containing monomer, although the composition ratio of the monomers is not limited. It may have the flip-flop structure described above within the above range, and it is possible to secure a certain or more washing fastness.

In addition, one or more functional monomers may be additionally introduced into the copolymer in order to further improve durability of stain release, solubility in organic solvents, imparting flexibility, and adhesion to a target object. Such monomers include, for example, diacetoneacrylamide, (meth)acrylamide, N-methylolacrylamide, N,N-dimethylaminoethyl (meth)acrylate, N,N-diethylaminoethyl (meth)acrylate , butadiene, chloroprene, glycidyl (meth)acrylate, maleic acid derivatives, vinyl halides such as vinyl chloride, ethylene, vinylidene halides such as vinylidene chloride, vinylalkyl ethers, styrene, alkyl (meth)acrylates, vinyl There are (meth)acrylates containing an isocyanate group such as pyrrolidone and 2-isocyanatoethyl (meth)acrylate, or their (meth)acrylates in which the isocyanate group is blocked with a blocking agent such as methyl ethyl ketoxime. It is not limited, and one or two or more of these may be used.

The copolymer is not limited in molecular weight. For example, the copolymer preferably has a weight average molecular weight of 10,000 to 1,000,000, more preferably 600,000 to 800,000 in terms of ensuring mechanical properties of the composition, particularly washing fastness.

In addition, the polymerization form and polymerization method of the copolymer are not limited. For example, the copolymer may be a block copolymer, a graft copolymer, or even a random copolymer. As the polymerization method, various polymerization methods such as bulk polymerization, solution polymerization, emulsion polymerization, and radiation polymerization can be selected. For example, in general, solution polymerization using an organic solvent or emulsion polymerization using water or an organic solvent and water together It is preferable to prepare a treatment liquid by selecting this and diluting it with water after polymerization or adding an emulsifier and emulsifying it in water.

In the present invention, the nanofibers are added to improve the mechanical and chemical properties of the coating layer, and have advantages such as excellent strength properties, thermal stability, large specific surface area, and low shrinkage and swelling properties.

More preferably, the nanofibers may be silk fibroin nanofibers. The fibroin fiber is widely recognized as a special biopolymer in nature, and while it is abundant and inexpensive, it is applicable to various coating layers that require improved physical properties regardless of the color of the substrate because it has mechanical robustness, flexibility, and optical transparency.

Silk protein consists of 70 to 80% of the weight of silk protein is water-insoluble silk fibroin, and the rest is water-soluble sericin. The silk fibroin is a fibrous protein synthesized in the larval silk glands of the silk layer represented by silkworms, and is composed of 18 amino acids and composed of antiparallel β sheet layers. Such silk fibroin has good bioaffinity, nonpollution, and biodegradation.

In particular, silk proteins composed of various amino acids show behaviors similar to those of the above-mentioned fluorine-containing copolymers because the hydrophilic and hydrophobic blocks are in the form of random or block copolymers. , The hydrophobic group of the fluorine-containing copolymer and the hydrophobic block of the silk protein have affinity with each other, so that the mechanical properties of the coating layer can be further improved and the adhesion to fibers can be increased.

The fibroin fiber can be prepared by removing sericin from silkworm yarn through a scouring process and reducing the thickness of the fibroin fiber to a nano level. At this time, any refining agent used in the scouring process may be used as long as it is a refining agent commonly used when sericin is removed from silk. For example, it can be carried out using a scouring agent containing at least one selected from the group consisting of an aqueous soap solution, an aqueous alkali solution, an aqueous acidic solution, an aqueous enzyme solution, and an aqueous amine solution.

Here, the soap is tallow, Oliver oil, Coconut oil, Castor oil, Arachis oil, Cotton seed oil, Chrysal Chrysalis oil, Sodium Laurate, Sodium Myristate, Sodium Stearate, Sodium Arachidate, Sodium Oleate, Sodium Ricinol Sodium Ricinoleate, etc.

In addition, it is possible to refine in an alkaline aqueous solution or an acidic aqueous solution, and a refining method using an enzyme can also be applied. The alkaline aqueous solution may be one using sodium hydroxide, sodium carbonate, calcium carbonate, sodium silicate, sodium phosphate, sodium bicarbonate, borax, ammonia, or the like. The acidic aqueous solution may be one using lactic acid, tartaric acid, citric acid, oxalic acid, malonic acid, succinic acid, acetic acid, chloroacetic acid, dichloroacetic acid or trichloroacetic acid. As the enzyme, trypsin, papain, and the like can be used. In addition, refining using methylamine, ethylamine, etc. as an amine-type agent is also applicable.

The refining process may be performed at 70 to 150 °C, preferably 90 to 130 °C. At this time, the refining time may be 0.3 to 5 hours, preferably 0.5 to 4 hours. In terms of effectively producing fibroin nanofibers without damaging silk through the scouring process, scouring time may be optimized in the above-described temperature range. In particular, when the temperature of the scouring process is less than 70 ° C., sericin is not sufficiently removed, silk fibroin nanofibers are not sufficiently produced, or the time required for removing sericin and producing silk fibroin nanofibers is greatly increased, resulting in process cost. can be increased In addition, when the temperature of the scouring process exceeds 150 ° C., the molecular chain of silk may be cut or the silk may be damaged during the scouring process.

In addition, after the fibroin fiber is subjected to a scouring process as necessary, the produced silk fibroin is put in water and a physical force such as ultrasonic treatment or physical agitation or blow treatment is applied to separate and nanonize the agglomerated fibroin fiber. can include

The ultrasonic treatment may be performed under a power condition of 200 W to 1,200 W, preferably 250 W to 1,000 W, and more preferably 300 W to 800 W. In addition, the ultrasonic treatment may be performed for 0.3 to 15 hours, preferably for 0.4 hours to 12 hours, and more preferably for 0.5 hours to 10 hours. For example, in the case of ultrasonic treatment, the treatment time may be performed from 0.3 hours to 15 hours in a manner in which ultrasonic waves are processed for 30 seconds with a power of 600 W and rested for 30 seconds.

The fiber length and fineness of the nanofibers are not limited. For example, the nanofiber may have a fiber length of 1 to 10 mm and a fineness of 0.1 to 10 d, and in addition, the fiber length and fineness may be freely taken within a range that does not impair the object of the present invention.

In the present invention, it is preferable to include 10 to 30 parts by weight of the nanofibers based on 100 parts by weight of the fluorine-containing copolymer. When the content of the nanofibers is less than the above range, mechanical properties and adhesion of the coating layer may decrease, and when the content exceeds the above ranges, the nanofibers act as cracks in the coating layer and mechanical properties may decrease.

In the present invention, the solvent is not limited to the type as long as it is a substance capable of dissolving the fluorine-containing copolymer, and examples of the solvent include ketones such as acetone and methyl ethyl ketone, esters such as ethyl acetate and methyl acetate, and propylene There are glycols such as glycol, dipropylene glycol monomethyl ether, dipropylene glycol, tripropylene glycol, and low molecular weight polyethylene glycol, alcohols such as ethyl alcohol and isopropanol, and 1-methyl-2-pyrrolidone.

The amount of the solvent added is not limited, but is preferably added in an amount of 50 to 500 parts by weight based on 100 parts by weight of the fluorine-containing copolymer.

In the present invention, the antifouling coating liquid may further include various additives in addition to the above components. Such additives include, for example, water and oil repellent agents, anti-wrinkle agents, anti-foaming agents, flame retardants, cross-linking agents, antistatic agents, softeners, antibacterial agents, pigments and paints, and the like. It can be used alone or in combination of two or more, and the addition amount is also not limited. In addition, the above components may be mixed and used in a treatment bath during treatment of the fabric, or only the above components may be separately added in a post-treatment manner.

In the present invention, the antifouling coating solution may be coated on the fabric in various ways, but preferably, the fabric is immersed in a bathtub containing the antifouling coating solution, and then the coating is taken out. At this time, the fabric is preferably dried after removing unnecessary coating liquid before forming the coating layer after passing through the bathtub in order to prevent deterioration in touch or flexibility due to excessive coating layer formation.

Specifically, the antifouling coating liquid is preferably coated on the fabric in an amount of 10 to 200 g/m 2 . Within the above range, it is possible to achieve improvement in mechanical and chemical properties such as stain resistance, scratch resistance, and adhesion.

Next, as a step of heat-treating the fabric impregnated with the coating liquid as described above, the heat treatment may be performed in various ways without being limited to the type as long as it is commonly applied in the art. For example, in the step c), heat treatment may be performed by passing the fabric through a hot air convection type heat treatment device, and an infrared heat treatment device may be used in addition to the hot air convection type heat treatment device. At this time, step c) is preferably performed at a temperature of 100 to 200 ° C as a heat treatment temperature.

As described above, the fabric having a coating layer formed on the surface through heat treatment may further undergo a process of covering and sewing according to the purpose of use.

Next, functional pants can be manufactured by cutting and sewing the fabric prepared as described above. At this time, the step d) may include: d1) drawing the boundary line of each part constituting the pants on the fabric; d2) cutting the fabric along the boundary line; d3) forming the shape of trousers by sewing the plurality of cut fabrics; and d4) attaching buttons and zippers to the sewn trousers.

The step d1) is a patterning step, and the patterning is a step of drawing (marking) the boundary lines of each part constituting the pants on the fabric.

The patterning is applied to all fields of clothing manufacturing including pants, and the pattern is the same concept as a design drawing in the field of architecture, and in the present invention means drawing a pattern of pants.

In general, in order to manufacture trousers, a pattern forming the trousers must first be designed. Problems such as deformation of clothes and correction of sewing lines according to actual measurements that occur during the manufacturing process of trousers are improved through a correction process in the patterning stage.

In the present invention, step d1) may be performed on a computer through a CAD program or the like. Through this, it is possible to improve the accuracy of a sewing operation to be described later by showing the sewing guideline together with the pattern.

Next, the patterned fabric is cut and sewn. At this time, the cutting is to cut according to the pattern shown on the fabric, and the sewing is a step of forming the shape of pants by connecting the fabric cut along the pattern.

In addition, the fabric forming the shape of the pants is equipped with accessories such as buttons or zippers, and more specifically, tapes, retroreflective fibers, and zippers including teeth may be further provided.

The present invention may include functional pants manufactured as described above. At this time, the functional pants may further include a zipper 200 including a tape 210, a retroreflective fiber 220, and teeth 230 on the upper outer surface of the pants 100 as shown in FIG. 1 .

Specifically, the zipper is a plastic zipper or a metal zipper in which a reflective thread is embedded, and is composed of tape, teeth, and retroreflective fibers. The tape 210 is made of polyester with various colors. Teeth 230 are composed of first and second teeth to mesh with each other. The teeth are made of plastic or metal. At this time, the teeth may be made of a transparent or opaque plastic material. Furthermore, the teeth may also be made of a metal material. When the teeth are made of a transparent material, the entire feed or sewn retroreflective fiber is visible, and when the teeth are made of an opaque material, the feed or sewn retroreflective fiber 220 is visible between the teeth and the gap between the teeth. Therefore, the retroreflective fiber sewn into the tape can reflect light in a dark place and increase the visibility of the zipper.

Hereinafter, the present invention will be described in more detail by way of Examples and Comparative Examples. However, the following examples are only one example for explaining the preferred embodiment of the present invention in detail, and the present invention is not limited by the following examples.

The physical properties of the specimens prepared in Examples and Comparative Examples were measured as follows.

(antifouling)

The stain release property test was conducted according to the US AATCC stain release performance test method (Stain Release Management Performance Test Method). Corn oil or mineral oil was used for test contamination.

A square test cloth with a side of 20 cm is spread on a blotting paper laid horizontally, and 5 drops (about 0.2 cc) of corn oil or mineral oil are dropped on the test cloth as contamination. Glassine paper was covered thereon, and a weight of 2268 g was loaded and left for 60 seconds. After 60 seconds, the weight and glassine paper are removed, and left as is for 15 minutes at room temperature. After 15 minutes, the ballast cloth was added to the test cloth to make it 1.8 kg, and using 100 g of detergent (AATCC standard WOB detergent), an AATCC standard washing machine (manufactured by Kenmore, USA) was washed at a bath volume of 64 liters and a bath temperature of 38 ° C. After washing and rinsing, the test cloth is dried with an AATCC standard tumbler dryer (manufactured by Kenmore, USA). The state of residual stain contamination of the dry test cloth is compared with a standard photographic plate for judgment, and the contamination removal performance is indicated by the corresponding judgment grade. A standard photographic plate for judgment was used that of AATCC-TM130-2000 (American Association of Textile Chemists and Colorists Test Method 130-2000). The test was repeated 10 times and the average value was calculated.

*Criteria

1: Stain is hardly removed

2: Many stains remain

3: Some stains remain

4: Stains are almost eliminated

5: No stain left

(oil repellency)

It was carried out according to AATCC-TM118-2000. Specifically, after spreading the test cloth horizontally, 1 drop of n-heptane, n-octane and n-decane were dropped thereto, and then the penetration state after 30 seconds was determined. . The judging criteria are as follows.

*Criteria

1: The diameter of the stain is 1.5 cm or more

2: The diameter of the stain is 1.2 cm or more and less than 1.49 cm

3: The diameter of the stain is 0.8 cm or more and less than 1.19 cm

4: The diameter of the stain is 0.5 cm or more and less than 0.79 cm

5: The diameter of the stain is less than 0.49 cm

(washing fastness)

As the washing fastness test, the test method of KS K ISO 105-C01: 2007 was used. This method was carried out using a cylinder made of glass or stainless steel with a diameter (75 ± 5) mm, a height (125 ± 10) mm, and a capacity (550 ± 50) ml. An aqueous detergent solution was prepared at 5 g/ℓ using AATCC standard detergent WOB (without optical brightener). The soap solution prepared in this way was put into a cylinder with a test piece at a liquid ratio of 50:1 and washed for 180 minutes at a temperature of 40±2° C./min. The test piece taken out after the washing process was washed twice with distilled water, dried at room temperature, and the surface was observed and determined according to the following criteria. The test was repeated 10 times and the average value was calculated.

*Criteria

1: No coating layer remains on the fiber surface

2: A significant number of coating layers are removed from the fiber surface

3: Half of the coating layer is removed from the fiber surface

4: A significant number of coating layers remain on the fiber surface

5: The coating layer is not removed

(Example 1)

First, to prepare a fluorine-containing copolymer, 5 parts by weight of acetoacetoxyethyl methacrylate, 3-chloro-2-hydroxypropyl methacrylate based on 100 parts by weight of bis (2,2,2-trifluoroethyl) ether and cinnamic acid were prepared by mixing 15 parts by weight and reacting at 70 ° C.

Next, 100 parts by weight of a fluorine-containing copolymer, 20 parts by weight of polypropylene fiber (fiber length 5 mm, fineness 3d) and 100 parts by weight of methyl ethyl ketone were added to a specimen made of a mesh material in which cotton and polyethylene terephthalate were mixed at a weight ratio of 5: 5, respectively. The mixed coating composition was coated, but the coating solution was added to the specimen to be 100 g/m 2 . And the specimen was completed by heating at 130 ° C. for 10 minutes.

(Example 2)

Specimens were prepared in the same manner as in Example 1, except that polyethylene terephthalate fibers of the same specification were added as nanofibers when preparing the specimens.

(Example 3)

Specimens were prepared in the same manner as in Example 1, except that silk fibroin fibers of the same specification were added as nanofibers when preparing the specimens.

(Example 4)

Specimens were prepared in the same manner as in Example 3, except that 30 parts by weight of 3-chloro-2-hydroxypropyl methacrylate and cinnamic acid were mixed when preparing the fluorine-containing copolymer.

(Example 5)

Specimens were prepared in the same manner as in Example 3, except that 10 parts by weight of each of 3-chloro-2-hydroxypropyl methacrylate and cinnamic acid was mixed when preparing the fluorine-containing copolymer.

(Comparative Example 1)

Specimens were prepared in the same manner as in Example 1, except that polytetrafluoroethylene was added instead of the fluorine-containing copolymer.

(Comparative Example 2)

Specimens were prepared in the same manner as in Example 1 except that no antifouling coating was applied during the preparation of the specimen.

[Table 1]

As shown in Table 1, it can be seen that the specimen manufactured by the manufacturing method according to the present invention has excellent antifouling and oil repellency properties, but also has high washing fastness because the coating layer is maintained even after washing. In particular, Example 3 using silk fibroin fibers having both a hydrophilic block and a hydrophobic block showed better washing fastness than Examples 1 and 2 using hydrophobic fibers, polypropylene and polyethylene terephthalate.

In Examples 4 and 5, where the polymerization degree of the hydrophilic monomer of the fluorine-containing copolymer was high or low, it can be seen that the mechanical properties of the coating layer were rather deteriorated, and when the general fluorine polymer was used, the washing fastness was the lowest.

The present invention described above is not limited by the above-described embodiments, and various substitutions, modifications, and changes are possible within a range that does not depart from the technical idea of the present invention. It will be clear to you.

100: pants
200: zipper
210: tape
220: retroreflective fiber
230: teeth

Claims (10)

a) preparing one or more fabrics selected from denim, lycra, flat woven, flat tricot, double raschel, tricot suede, tricot, circle knit, mesh, DNB mesh, and sinker pile;
b) coating the fabric with an antifouling coating solution containing 10 to 30 parts by weight of fibroin nanofibers and 50 to 500 parts by weight of a solvent based on 100 parts by weight of the fluorine-containing copolymer;
c) heat-treating the coating solution; and
d) manufacturing pants by cutting and sewing the fabric;
Including,
The fluorine-containing copolymer,
100 parts by weight of any one or a plurality of fluorine-containing monomers selected from a fluoroalkyl group and a fluoroalkenyl group;
Acetoacetoxyethyl acrylate, acetoacetoxyethyl methacrylate, acetoacetoxypropyl acrylate, acetoacetoxypropyl methacrylate, N-(2-acetoacetoxyethyl)acrylamide, N-(2-acetoacetic acid) 0.1 to 10 parts by weight of any one or a plurality of acetoacetyl group-containing monomers selected from toxyethyl)methacrylamide, vinyl acetoacetate, and allyl acetoacetate; and
30 to 50 parts by weight of a mixture of 3-chloro-2-hydroxypropyl methacrylate and cinnamic acid;
Method for producing antifouling coated pants comprising a.
delete delete delete According to claim 1,
The antifouling coating liquid further comprises any one or a plurality of additives selected from water and oil repellent agents, anti-wrinkle agents, anti-foaming agents, flame retardants, crosslinking agents, antistatic agents, softeners, antibacterial agents, pigments and paints. Manufacturing method of coated pants.
According to claim 1,
Step b) is a method for producing antifouling coated pants, characterized in that the antifouling coating liquid is coated on the fabric at 10 to 200 g / m 2 .
According to claim 1,
Step c) is a method for producing antifouling coated pants, characterized in that the heat treatment at a temperature of 100 to 200 ℃.
According to claim 1,
In step d),
d1) drawing the boundary of each part constituting the pants on the fabric;
d2) cutting the fabric along the boundary line;
d3) forming the shape of trousers by sewing the plurality of cut fabrics; and
d4) attaching buttons and zippers to the sewn trousers;
Method for producing antifouling coated pants comprising a.
According to claim 8,
The method of manufacturing antifouling coated pants, characterized in that the zipper comprises a tape, a retroreflective fiber and a tooth.
Claims 1, 5 to 9 functional pants manufactured by the manufacturing method according to any one of claims selected.

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