Method for manufacturing woven terry fabric using two-for-one twisting method
The two-for-one twisting method combining Nylon/Polyester composite yarns with bamboo fibers addresses durability and lint issues in towel manufacturing, enabling high-quality, absorbent towels with sustained performance.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BIZLINK CO LTD
- Filing Date
- 2024-12-05
- Publication Date
- 2026-06-04
Abstract
Description
Method for manufacturing woven terry fabric using a two-for-one twisting method
[0001] The present invention relates to a method for manufacturing woven terry fabric using a two-for-one twisting method.
[0002] Recently, the textile industry has been actively conducting research to enhance the functionality of clothing and daily necessities by utilizing high-performance composite fibers. In particular, since daily necessities such as towels come into direct contact with the skin, high absorbency and a soft touch are essential. To this end, cotton fibers have been used as a primary material, and cotton fibers have established themselves as the core material for towels by providing natural moisture absorption and softness.
[0003] However, cotton fibers possess a structural weakness in that their performance deteriorates due to repeated washing and friction. Cellulose, the main component of cotton fibers, contains a large amount of hydrophilic hydroxyl groups (-OH), providing high hygroscopicity; however, the absorbed moisture does not evaporate easily and remains within the fibers. This residual moisture creates an environment prone to lint formation, leading to a deterioration in the towel's feel and appearance. Furthermore, repeated friction during washing damages the fiber surface, resulting in a rough texture and reduced durability.
[0004] To address these issues, research is underway to improve lint resistance and durability by utilizing regenerated fibers (e.g., bamboo fiber) and high-strength N / P composite yarns instead of cotton fibers. In particular, regenerated fibers such as bamboo fiber are attracting attention due to their advantages of providing natural antibacterial properties and a soft touch. However, bamboo fiber has the disadvantage of low durability and susceptibility to friction, which causes lint to easily form during weaving or use, resulting in a high defect rate during the manufacturing process. To compensate for this, methods involving the application of synthetic fiber cores and covering yarns have been proposed; however, covering yarns face limitations in mass production due to low productivity resulting from complex manufacturing processes and high defect rates caused by friction.
[0005] Therefore, daily necessities such as towels require new materials and manufacturing technologies that satisfy high absorbency, durability, and lint resistance. Consequently, there is an urgent need for research and development to improve the performance of household textile products, produce high-performance towels capable of withstanding repeated washing and friction without quality degradation, and develop technologies for the mass production of such high-quality towels.
[0006] The present invention aims to provide a method for manufacturing a towel that has high absorbency, durability, and tactile feel, minimizes friction during weaving to effectively reduce defects such as lint, and is suitable for mass production.
[0007] In addition, the objective of the present invention is to provide a towel with excellent tactile sensation, high absorbency, durability, and tactile sensation due to the wide spacing between piles.
[0008] For the purposes described above, the present invention provides a method for manufacturing a towel comprising: a step of manufacturing a terry fabric in which a base portion including warp yarns and weft yarns and a pile yarn form loops between each of the weft yarns by weaving warp yarns, weft yarns, and pile yarns; a first dyeing step of first dyeing the manufactured terry fabric; and a second dyeing step of second dyeing the first dyed terry fabric; wherein the pile yarns are formed by twisting a first pile yarn containing a Nylon / Polyester composite yarn and a second pile yarn containing bamboo fibers using a two-for-one twisting method.
[0009] According to one embodiment, prior to the manufacturing step of the terry fabric, a pile yarn manufacturing step may be further performed in which a first pile yarn containing a Nylon / Polyester composite yarn and a second pile yarn containing bamboo fibers are twisted in a two-for-one twisting manner.
[0010] According to one embodiment, the volume ratio of the first pile and the second pile may satisfy 0.5 to 2:1.
[0011] According to one embodiment, the pile yarn may have a twist of 150 to 300 TPM (Twist per meter).
[0012] According to one embodiment, the Nylon / Polyester composite yarn may satisfy a weight ratio of Nylon to Polyester of 2:8 to 4:6.
[0013] According to one embodiment, the fineness of the Nylon / Polyester composite yarn may be 30 to 120 D / 30F.
[0014] According to one embodiment, the warp yarn and weft yarn may independently have a count of 10 to 80.
[0015] According to one embodiment, the first dyeing step may be dyeing the pile yarn using a disperse dye under temperature conditions of 90 to 110°C.
[0016] According to one embodiment, in the first dyeing step, the pile yarn may be separated into a first pile yarn and a second pile yarn.
[0017] According to one embodiment, the second dyeing step may involve dyeing the bottom portion using a reactive dye under temperature conditions of 60 to 90°C.
[0018] The present invention can provide a towel manufactured according to the above-described manufacturing method.
[0019] The present invention provides a towel comprising a bottom portion including warp yarns and weft yarns; and a pile portion including pile yarns, wherein the pile yarns include a first pile yarn and a second pile yarn, and exist in one or more forms selected from the group consisting of a first form in which the first pile yarns and the second pile yarns are combined and a second form in which the first pile yarns and the second pile yarns are separated, wherein the first pile yarns include a Nylon / Polyester composite yarn and the second pile yarns include bamboo fibers.
[0020] According to one embodiment, the volume ratio of the first pile and the second pile may satisfy 0.5 to 2:1.
[0021] According to one embodiment, the pile yarn may have a twist of 150 to 300 TPM (Twist per meter).
[0022] According to one embodiment, the Nylon / Polyester composite yarn may satisfy a weight ratio of Nylon to Polyester of 2:8 to 4:6.
[0023] According to one embodiment, the fineness of the Nylon / Polyester composite yarn may be 30 to 120 D / 30F.
[0024] According to one embodiment, the warp yarn and weft yarn may independently have a count of 10 to 80.
[0025] A woven terry fabric according to one embodiment and a method for manufacturing a towel containing the same can significantly improve the productivity of high-performance fibers, which were difficult to mass-produce, and at the same time, minimize lint generation caused by friction, thereby reducing the defect rate. Furthermore, a towel manufactured according to the above method can maintain high quality even in a mass production environment. The method for manufacturing the towel maximizes productivity through a pile yarn manufacturing process utilizing a two-for-one twisting method, enabling the mass production of high-quality towels while reducing manufacturing costs, thus allowing for the expected effect of strengthening market competitiveness.
[0026] In particular, a towel manufactured by the manufacturing method according to one embodiment can minimize lint generation caused by friction while maintaining high absorbency and durability. In particular, by combining bamboo fiber and N / P composite yarn, absorbency and tactile feel are improved, and by preventing fiber damage and quality degradation that may occur during the manufacturing process, the long-term quality of the towel can be maintained. These characteristics allow the tactile feel and absorbency to be maintained even after repeated washing, thereby providing continuous satisfaction to the user.
[0027] The present invention will be described in more detail below through specific examples or embodiments, including the attached drawings. However, the following specific examples or embodiments are merely references for the detailed description of the present invention and the present invention is not limited thereto and may be implemented in various forms.
[0028] Unless otherwise defined, technical and scientific terms used in this specification have the meanings commonly understood by those skilled in the art to which this invention pertains, and descriptions of known functions and configurations that could unnecessarily obscure the essence of the invention are omitted in the following description and accompanying drawings.
[0029] Additionally, the singular form used in this specification may be intended to include the plural form unless specifically indicated otherwise in the context.
[0030] Additionally, units used herein without special reference are based on weight, and, for example, units of % or ratio mean weight % or weight ratio, and weight % means the weight percentage of any one component of the total composition that occupies the composition, unless otherwise defined.
[0031] Additionally, the numerical ranges used in this specification include lower and upper limits and all values within the range, increments logically derived from the form and width of the defined range, all of which are limited values, and all possible combinations of upper and lower limits of numerical ranges defined in different forms. Unless otherwise specifically defined in this specification, values outside the numerical range that may occur due to experimental error or rounding are also included in the defined numerical range.
[0032] The term "comprising" in this specification is an open description having an equivalent meaning to expressions such as "comprising," "containing," "having," or "characterizing," and does not exclude elements, materials, or processes not additionally listed.
[0033] Additionally, the term "substantially" in this specification means that other elements, materials, or processes not listed together with the specified elements, materials, or processes may be present in an amount or degree that does not have an unacceptably significant effect on at least one basic and novel technical concept of the invention.
[0034] The term “filament yarn” in this specification means one or more continuous fibers in the form of filaments, each filament running the entire length of the yarn. A “strand” may be understood as being formed by twisting multiple filament yarns together.
[0035] The term "terry fabric" as used in this invention generally refers to a warp pile fabric. It is a fabric in which a base layer (foundation) is formed using a type of warp and weft yarn, and then separate pile yarns are arranged to form a pile or tassels on the fabric surface. More specifically, it refers to a multi-layered warp pile fabric in which loops are formed in the base layer using special warp yarns called terry pile.
[0036] The term "Woven Terry Fabric" as used in this invention refers to a terry fabric manufactured using a woven loom method, in which warp piles are added to a basic woven structure consisting of the intersection of warp and weft threads.
[0037] Hereinafter, one embodiment according to the present invention will be described in more detail.
[0038] A method for manufacturing a towel according to one embodiment can effectively solve the problems of low productivity caused by conventional complex production methods and high defect rates caused by friction during weaving, while maintaining high-performance towel quality.
[0039] Specifically, due to the poor tactile feel of conventional bamboo fibers, a covering process with a low degree of twist was used to twist them with synthetic fibers; however, this resulted in poor durability and a very low production speed, making mass production difficult. To solve this problem, the inventors of the present invention switched to a two-for-one method that enables rapid production. However, the existing two-for-one method caused a decrease in strength and tactile feel due to excessive twisting, as well as lint and breakage caused by friction during weaving, resulting in a high defect rate. Accordingly, the inventors of the present invention improved the tactile feel by controlling the degree of twist to ensure sufficient spacing between loops, secured strength and durability suitable for towel use, and significantly reduced the defect rate by minimizing the possibility of friction of the bamboo fibers during weaving. Through this, they discovered that it is possible to manufacture a high-performance towel that satisfies tactile feel, absorbency, colorfastness, a low defect rate, and high productivity, thereby completing the present invention.
[0040] The present invention provides a method for manufacturing a towel comprising: a step of manufacturing a terry fabric in which warp yarns, weft yarns, and pile yarns are woven to form a bottom portion containing warp yarns and weft yarns, and pile yarns form loops between each of the weft yarns; a first dyeing step of first dyeing the manufactured terry fabric; and a second dyeing step of second dyeing the first dyed terry fabric; wherein the pile yarns are formed by twisting a first pile yarn containing a Nylon / Polyester composite yarn and a second pile yarn containing bamboo fibers using a two-for-one twisting method. Specifically, the pile yarns may be separated from each other during the first dyeing step.
[0041] According to one embodiment, prior to the manufacturing step of the terry fabric, a pile yarn manufacturing step may be further performed in which a first pile yarn containing a Nylon / Polyester composite yarn and a second pile yarn containing bamboo fiber are twisted using a two-for-one twisting method. The pile yarn manufacturing step may be performed using a two-for-one twisting machine that is commonly used or known in the field of textile technology. The pile yarn produced at this time may be continuously supplied to the manufacturing step of the terry fabric described later.
[0042] The aforementioned two-for-one twisting method is a high-efficiency twisting technique that creates two twists in a single rotation, capable of providing uniform twist and strength to the fibers. By utilizing this method, yarn durability is increased and lint generation is reduced, thereby improving quality; at the same time, productivity is enhanced, making it suitable for mass production. In particular, while conventional covering yarns have the disadvantage of a very high defect rate due to the excessive exposure of low-durability bamboo fibers on the surface, which leads to significant lint generation caused by friction during weaving and, in severe cases, breakage, the use of the two-for-one yarn method enables the production of pile yarns with superior durability at a low defect rate at a rapid speed.
[0043] The above pile yarn may be manufactured using a two-for-one twisting method with fibers of different materials, specifically by twisting a first pile yarn and a second pile yarn. The above two-for-one twisting method is different from general plying or covering twisting methods; it is a process of regularly twisting two or more strands of yarn, a method that applies two twists in a single rotation. By efficiently applying twists using a two-for-one twisting machine, productivity can be increased while maintaining uniformity of the twist, and the strength of the yarn can be increased and lint resistance enhanced.
[0044] According to one embodiment, the first pile yarn may be used without significant limitation as long as it is a fiber commonly used in the industry, and specifically, it may be a fiber with a heat shrinkage rate greater than that of bamboo fiber. Non-limiting examples of the first pile yarn may be any one or more mixed fibers selected from polyester, polyolefin, polyamide, and polyacrylic. Specifically, the first pile yarn may contain a Nylon / Polyester composite yarn, more specifically a Nylon / Polyester split microfiber.
[0045] The above Nylon / Polyester composite yarn is a type of specialty yarn manufactured by spinning nylon and polyester through the same spinneret. In this case, one component can be dissolved or split into ultrafine filaments through physical processing for use.
[0046] According to one embodiment, the Nylon / Polyester composite yarn may satisfy a weight ratio of Nylon to Polyester of 1:9 to 5:5, 2:8 to 4:6, or 2.5:7.5 to 3.5:6.5. The Nylon / Polyester composite yarn may be a Nylon / Polyester split type microfiber, and the microfiber is formed by microfiberization through a splitting process, and the splitting process may be carried out during the dyeing process. The splitting proceeds by reducing the polyester component of the Nylon / Polyester. The reduction in polyester may be 5 to 7 weight percent, and if the reduction in polyester exceeds 7 weight percent, there is a problem that the strength of the microfiber may decrease.
[0047] The above weight reduction process may utilize a conventional weight reduction process. For example, an alkali-soluble weight reduction process may be applied, but it is not limited thereto. Minimizing alkali penetration to prevent penetration of components other than the leaching resin is beneficial for fiber strength.
[0048] According to one embodiment, the Nylon / Polyester composite yarn may be a Nylon / Polyester split-type microfiber, and the Nylon / Polyester split-type microfiber may be a filament yarn composed of 36 to 72 filaments with a total fineness of 70 to 160 denier that is split to be microfiberized to have a thickness of 0.01 to 1 denier / filament. After the splitting process, fine gaps are formed between fibers, and the moisture absorption capacity is greatly increased by capillary action.
[0049] According to one embodiment, the Nylon / Polyester composite yarn may include a primary twist of 100 to 700 TPM, 200 to 500 TPM, or 300 to 500 TPM. The primary twist may be an S-twist or a Z-twist. After the primary twist, the twist may be fixed by high-pressure steam treatment, and then subjected to a untwisting process to untwist the twist. After the untwisting process, a secondary twist in a direction opposite to the direction of the primary twist may be further performed. At this time, if the primary twist is in the S direction, the direction of the secondary twist is made to be the Z direction, and if the primary twist is a Z-twist, the secondary twist is made to be an S-twist.
[0050] According to one embodiment, the fineness of the Nylon / Polyester composite yarn may be 20 to 200 D / 30F, 30 to 120 D / 30F, or 35 to 80 D / 30F.
[0051] According to one embodiment, the second pile yarn may be selected from cellulose-based fibers such as natural fibers and regenerated fibers, and preferably may be one or more selected from modal fibers, bamboo fibers, sisal fibers, and regenerated fibers. Preferably, the second pile yarn may contain bamboo fibers and may possess the permanent coolness inherent in bamboo itself, have excellent antibacterial and deodorizing effects, improve blood circulation, and achieve the effect of promoting metabolism.
[0052] According to one embodiment, the second pile yarn may have a fiber count of 5 to 80, a fiber count of 5 to 50, or a fiber count of 5 to 30.
[0053] According to one embodiment, the pile yarn may satisfy a volume ratio of the first pile yarn to the second pile yarn of 0.5 to 2:1, 0.8 to 1.5:1, or 0.9 to 1.1:1. In this case, the volume ratio may be proportional to the number of strands. That is, the ratio of the number of strands within the above range may be satisfied. When the above range is satisfied, high durability can be exhibited despite low twist, and at the same time, improvements in absorbency and tactile feel can be achieved.
[0054] According to one embodiment, the pile yarn may have a twist of 100 to 300 TPM (Twist per meter), 150 to 300 TPM, 160 to 260 TPM, 170 to 230 TPM, or 180 to 220 TPM. When the above range is satisfied, the twist strength is optimized to improve the feel and absorbency of the towel, and durability can be maintained even after repeated washing, while simultaneously achieving high productivity and a low defect rate. When it falls outside the above range, insufficient twist strength may be exhibited, resulting in reduced durability, or excessive twist strength may be exhibited, resulting in reduced feel or absorbency.
[0055] According to one embodiment, the pile yarn may include a third twist twisted in the same direction as the first twist of the Nylon / Polyester composite yarn. Alternatively, the pile yarn may include a third twist twisted in the opposite direction to the first twist of the Nylon / Polyester composite yarn. If this is satisfied, durability can be maintained even after repeated washing, while simultaneously achieving high productivity and a low defect rate.
[0056] According to one embodiment, by using a two-for-one twisting method for the first pile yarn and the second pile yarn as pile yarns, problems such as a high defect rate due to lint generation, and low productivity due to complex processes and slow working speeds, which were issues in conventional covering twisting yarn technology, can be solved, and at the same time, the tactile feel and absorbency of the towel can be improved and durability can be maintained even after repeated washing.
[0057] The manufacturing step of a terry fabric can be performed using the pile yarn produced by the above-described pile yarn manufacturing step. In this case, the pile yarn can be used as a pile warp. Through this, significantly improved productivity and a low defect rate compared to conventional technology can be achieved.
[0058] According to one embodiment, the bottom portion (foundation) may be formed by weaving warp yarns and weft yarns. The warp yarns and weft yarns may independently contain cotton fibers, and the warp yarns and weft yarns may be cotton yarns produced by a conventional cotton yarn spinning process. The fineness of the cotton yarns may be 10 to 80 cotton yarn counts, 10 to 60 cotton yarn counts, 20 to 50 cotton yarn counts, or 20 to 40 cotton yarn counts. Using cotton yarns having such fineness ensures weaving properties and mechanical strength, which is advantageous for manufacturing, and the manufactured towel may have good shape stability and excellent absorbency.
[0059] According to one embodiment, in the step of manufacturing the terry fabric, the terry fabric may be produced using a conventional or known method. For example, first, warp yarns and pile yarns are wound onto separate beams, and then the warp yarns are hung on a loom equipped with a weft device with strong tension and the pile yarns are hung with weak tension, after which the warp yarns and pile yarns are arranged alternately. After weft yarns are inserted between the warp yarns and then strongly squashed, the pile warp yarns are pushed so that loops can be formed on the bottom surface, thereby manufacturing a terry fabric with a pile portion formed on the surface.
[0060] According to one embodiment, after the terry fabric manufacturing step is completed, a first dyeing step for dyeing pile yarns may be performed. The first dyeing step may involve dyeing pile yarns using disperse dyes under temperature conditions of 90 to 110°C. Specifically, the dye used in the first dyeing step is not limited as long as it is a dye capable of dyeing pile yarns, specifically Nylon / Polyester blended yarns. Disperse dyes may be used in terms of the fastness of the towel. When using disperse dyes in the first dyeing step, since disperse dyes are usually insoluble or sparingly soluble in water, a pretreatment step may be performed to facilitate dyeing. For the pretreatment step, a pretreatment solution may be used in which a scouring agent, a carrier, a dispersant, and a leveling agent are mixed in the dyeing water. The dyeing water is preferably purified water with a water hardness of 30 to 100 ppm, but is not limited thereto.
[0061] The above scouring agent removes various impurities attached to the surface of the fiber, and preferably, it is preferable to use a nonionic active agent such as a polyoxyalkylene alkyl ether or an anionic active agent such as an alkylbenzene sulfonate or a sulfuric acid ester salt of an aliphatic alcohol mixed with the above nonionic active agent.
[0062] The above-mentioned dispersing agent is a chemical agent for removing various impurities attached to the surface of fibers, and preferably comprises a sodium naphthalenesulfonate-formalin condensate, sodium alkylnaphthalenesulfonate or its formalin condensate, a formalin condensate of sodium phenolsulfonate and sodium naphtholsulfonate, sodium alkyl diphenyl ether disulfonate, sodium ligninsulfonate, a nonionic surfactant polyoxyethylene alkyl(allyl) ether, a mixed preparation of a nonionic surfactant and anionic surfactant, a sulfonated nonionic surfactant, sodium polyacrylate, an olefin-sodium maleate copolymer, a water-based dispersant such as a condensed phosphate and carboxymethylcellulose, an alkylbenzene(naphthalene)sulfonate, sodium dioctylsulfonemaleate, a partially amidated or partially esterified product of a styrene-maleic anhydride copolymer, a fatty acid amide, and polyoxyethylene Non-aqueous dispersants such as alkylamines, acetates or fatty acid salts, alkyl 2nd (3rd) amines or amides, and alkylimidazolines may be used.
[0063] The carrier mentioned above plays a role in increasing the water solubility of the fiber through a swelling action that relaxes the fiber structure constituting the first pile yarn. In addition, when using general disperse dyes, the temperature of the dye solution varies depending on the fiber, but is usually carried out under conditions of 120°C or higher. This is because at temperatures above this level, cavities are formed in the fiber, creating conditions where the dye can penetrate. However, when using a carrier as in the present invention, there is an advantage in that the dyeing process can be performed effectively while using less energy.
[0064] Preferably, trichlorobenzene, methylnaphthalene, ortho-phenylphenol, N,N-dimethyl sulfoxide and N-methyl-2-pyrrolidone, etc., can be used as carriers in the present invention.
[0065] The above retardant is a chemical agent that inhibits rapid dyeing to prevent staining in the first dyeing step, and preferably, sodium sulfate, sodium chloride, and sodium carbonate can be used.
[0066] In addition, the above pretreatment solution may further contain an acid, which lowers the pH of the pretreatment solution to enhance the color intensity of the dye. The acid may be one commonly used in the industry.
[0067] The above pretreatment solution preferably comprises 1 to 2 weight% of a scouring agent, 0.1 to 1 weight% of a carrier, 0.1 to 1 weight% of a dispersant, 1 to 2 weight% of a leveling agent, and the remainder being water, and it is even more preferable to further comprise 0.01 to 0.1 weight% of an acid.
[0068] The above pretreatment step is preferably performed by immersing the terry fabric in a bath containing the pretreatment solution and carrying out the process at 90 to 110°C, preferably 95 to 100°C, for 10 to 30 minutes, as this can shrink the first pile yarn and facilitate the penetration of the disperse dye.
[0069] The dyeing method of the first dyeing step above may use any conventionally known dyeing method, and the present invention is not limited thereto.
[0070] The above disperse dyes are dyes possessing one or more chromophores, and may include azo dyes, anthraquinone dyes, quinophthalone dyes, naphthylimide dyes, naphthoquinone dyes, and nitro dyes, for example, CI Disperse Yellow 3, CI Disperse Yellow 5, CI Disperse Yellow 64, CI Disperse Yellow 160, CI Disperse Yellow 211, CI Disperse Yellow 241, CI Disperse Orange 29, CI Disperse Orange 44, CI Disperse Orange 56, CI Disperse Red 60, CI Disperse Red 72, CI Disperse Red 82, CI Disperse Red 388, CI Disperse Blue 79, CI Disperse Blue 165, CI Disperse Blue 366, CI Disperse Blue 148, CI Disperse Violet 28, and CI Disperse Green 9. It is possible.
[0071] In addition, disperse dyes can also be selected from a suitable database (e.g., "Color Index"). Details and other examples of disperse dyes are described in "Industrial Dyes," edited by Kraus Hunger, Wiley-VCH, Weinheim, 2003, pages 133–158. Therefore, you can make a selection by referring to these. In addition, it is acceptable to use a combination of two or more types of disperse dyes.
[0072] In addition, to impart other functions, additives such as antioxidants, pH adjusters, surface tension lowering agents, thickeners, humectants, chlorinating agents, preservatives, antifungal agents, antistatic agents, metal ion chelating agents, and reducing agents may be used in the primary dye solution composition in addition to the disperse dye.
[0073] The above primary dye solution composition may include 1 to 3 weight% of disperse dye, 1 to 5 weight% of additives, and the remainder being water.
[0074] It is preferable that the first dyeing step be performed at 90 to 110°C, preferably 95 to 100°C, and most preferably 96 to 98°C, as this not only shrinks the first pile yarn among the pile warp yarns but also expands the irregular portions of the microfibers contained in the filaments and / or base yarns forming the first pile yarn, thereby facilitating smoother dyeing and improving colorfastness. Additionally, it is preferable that the first dyeing step be carried out for 1 to 2 hours to ensure uniform dyeing.
[0075] In the above first dyeing step, the pile yarn may be separated into a first pile yarn and a second pile yarn. Specifically, since the first pile yarn has a greater degree of heat shrinkage than the second pile yarn, the twist at the loop-forming portion unwinds and separates from each other, thereby enabling superior tactile sensation and absorption rate. Furthermore, if the above-mentioned Twist (TPM) range is satisfied, even more remarkable tactile sensation and absorption rate can be achieved. On the other hand, excessive twist or a two-for-one twisting method is not preferred because it cannot achieve the physical properties intended by the present invention.
[0076] After the first dyeing step is completed, the dye solution is removed from the bath, and the scouring and bleaching step is immediately carried out in the same bath. The scouring and bleaching step is a common process for the fibers forming the bottom and the fibers forming the pile warp, and through this process, not only are foreign substances and unreacted pigments removed, but the absorbency can also be improved.
[0077] The scouring agent used in the above scouring and bleaching steps may be an inorganic or organic scouring agent commonly used in this technical field, for example, sodium hydroxide (NaOH), sodium carbonate (Na2CO3), sodium bicarbonate (NaHCO3), sodium sesquicarbonate (Na2CO3NHCO32H2O), sodium silicate (xNa2Si4O9+ yNa2Si2O3+zH2O), calcium oxide (CaO), calcium hydroxide (Ca(OH)2), etc.
[0078] The bleaching agent used in the above refining and bleaching steps is one that decomposes pigment substances through oxidation-reduction action, and for example, chlorine-based bleaching agents such as bleaching powder (Ca(OCl)2), sodium hypochlorite (NaClO), sodium chlorite (NaClO2), peroxide-based bleaching agents such as hydrogen peroxide (H2O2), sodium peroxide (Na2O2), sodium perborate (NaBO3·4H2O), potassium permanganate (KMnO4), and sulfite-based bleaching agents such as sulfur dioxide (SO2), sodium bisulfite (NaHSO3), and sodium hyposulfite (Na2S2O4) may be used.
[0079] In addition to this, it is acceptable to further add chelating agents such as ethylene diaminetetraacetic acid (EDTA), hydroxypolycarboxylic acid (Citric Acid), aminomethylphosphonic acid (Ethylene Diaminetetramethyl Phosphonic Acid; EDTMP), oxalic acid, sodium hexamethacrylate, or stabilizers such as polysilicates and polyacrylates to the treatment solution composition used in the scouring and bleaching steps.
[0080] The above scouring and bleaching steps are preferably performed at 90 to 98°C, preferably 95 to 98°C, most preferably 96 to 98°C. If the above range is exceeded, the removal of foreign substances, unreacted dyes, etc., is not properly carried out, and the first pile yarn dyed through the first dyeing step may be decolorized.
[0081] The above treatment solution composition may include 1 to 5 weight% of a scouring agent, 1 to 5 weight% of a bleaching agent, 0.1 to 5 weight% of an additive, and the remainder being water.
[0082] Once the scouring and bleaching processes are finished, a second dyeing step can be performed.
[0083] According to one embodiment, the second dyeing step may involve dyeing the bottom portion using a reactive dye under temperature conditions of 60 to 90°C. Similar to the scouring and bleaching step, the second dyeing step may also be performed in the same bath by simply replacing the treatment solution. In particular, the towel manufacturing method according to one embodiment can increase the fastness of the pile yarn by dyeing the pile yarn with a disperse dye in the first dyeing step, and then discharging the residue of the disperse dye through a scouring process using caustic soda, a dyeing process suitable for cellulose fibers, and a number of post-treatment processes.
[0084] The above second dyeing step involves dyeing the bottom part, that is, the warp and weft yarns, and it is preferable to use a dyeing method and dye for cotton fibers. For example, it is preferable to use one or more dyes selected from direct dyes, sulfur dyes, vat dyes, azo dyes, acid dyes, basic dyes, and reactive dyes. In terms of the fastness of the towel, a reactive dye may be used for the dye used in the above second dyeing step, and the dyeing method used is not limited to the type of reactive dye as long as it is a reactive dye capable of dyeing by immersion dyeing, CPB (Cold Pad Batch), or continuous dyeing.
[0085] The above-mentioned reactive dye consists of a pigment matrix and a reactive group. Since the adsorption rate typically varies significantly depending on the molecular structure of the pigment matrix even within the same reactive group, it is advisable to use a reactive dye that combines a pigment matrix with excellent fastness to a specific reactive group. Furthermore, using a reactive dye containing two or more functional groups rather than a monofunctional group is preferable as it can prevent the towel from appearing white due to friction during use and repeated washing.
[0086] Preferably, having a vinylsulfone-based or triazine-based reactor as the above reactor is inexpensive, is not restricted by the dyeing method, forms a stable bond between the fiber and the reactive dye, and has excellent fastness and uniformity.
[0087] Examples of the above reactive dyes may be used, such as CIBA Specialty Chemicals’ Lanasol CE, Yellow light, Orange light, Blue light, Navy light, Red light, Rose light, Lemon light, Sky light, Cibacron FN, Red FN-3G, Red FN-G, Cibacron LS; Nippon Kayaku’s Blue P-NFB liquid 50, yellow P-N3R liquid 33, Red P-4BN liquid 25; Sumitomo Chemical Industry’s Sumifix HF type; Daistar’s Srius plus, Realan, Reanova CA; Mitsubishi Kasei Hoechst’s Remazol RU-N; Zeneca’s Procion CX; Clariant’s Optizal-based dyes, etc. All of these dyes can exhibit a high fixation rate of 80% or more and excellent wet fastness. Of course, it is also acceptable to use a combination of two or more types of the above reactive dyes.
[0088] One or more of the above reactive dyes are selected, and the amounts of auxiliaries and dyes used are determined according to the degree of color intensity regardless of whether the immersion dyeing method, CBP, or continuous dyeing method is selected. An alkaline auxiliary solution can be prepared containing 5 to 10 g / L sodium carbonate and 80 to 120 g / L sodium silicate, and a dyeing solution can be prepared by mixing 10 to 30 g / L of reactive dye and distilled water. In this case, the sodium silicate acts as a buffer to uniformly adjust the pH of the dyeing solution and also serves to reduce the difference in color intensity of the fabric. A secondary dyeing composition containing the above auxiliary solution and dyeing solution in a volume ratio of 4:1 can be used to express colors of medium shades.
[0089] When dyeing a fabric with a dark color (shade), 30 g / L or more of reactive dye, 80 to 120 g / L of sodium silicate, and 10 to 20 g / L of sodium carbonate may be used. The amount of dye solution prepared by dissolving the reactive dye in distilled water and the preparation solution containing sodium silicate and sodium hydroxide may be used in a volume ratio of 4:1 (preparation solution:dye solution).
[0090] The terry fabric can be immersed in a dyeing composition at 50 to 90°C for at least one hour so that reactive dyes can be fixed to the warp and weft yarns of the terry fabric. Since unfixed dyes remaining on the terry fabric after immersion for at least one hour can cause problems with poor colorfastness of the towel, the unfixed dyes can be decomposed and removed, and at the same time, the reactive dyes fixed to the fibers can form covalent bonds with the fibers. After dyeing is finished, the terry fabric can be immersed in a 5 to 10 weight% aqueous sodium hydroxide solution at 90°C for 1 to 10 minutes or 3 to 7 minutes, then rinsed with running water to remove sodium carbonate and sodium hydroxide, and dried at 10 to 130°C for 60 to 90 seconds to complete the second dyeing step.
[0091] According to one embodiment, the secondary dyeing composition may further include a mordant and a scouring agent. The mordant performs the role of promoting color development and fixing pigments to the fibers. Aluminum mordants such as alum (potassium aluminum sulfate, AlK(SO4)2·12H2O), aluminum acetate, and aluminum chloride, copper mordants such as copper acetate or copper sulfate, and sodium mordants such as anhydrous sodium sulfate may be used, but are not limited thereto; any mordant commercially used by a person with ordinary knowledge in the art may be used. The secondary dyeing composition may include 1 to 5 weight% of the mordant and 1 to 5 weight% of the scouring agent.
[0092] The above scouring agent performs the role of removing impurities so that the dye can be well adsorbed onto the fiber, and may use one selected from the group consisting of alkyl sulfates, alkyl phosphates, alkyl sulfonates, alkyl polyoxyethylene ether sulfonates and alkyl polyoxyethylene ether phosphates, or a mixture thereof, but is not limited thereto.
[0093] According to one embodiment, a soaping process may be further performed after the second dyeing step. The soaping process is a process for removing unfixed dye remaining after dyeing, and it is preferably performed at a temperature of 90 to 110°C for 20 minutes to 1 hour.
[0094] The scouring solution composition used in the above scouring process can be prepared by adding a scouring agent to ordinary water having the above temperature, and preferably, PROTEPON RSA or PROTEPON NRC of Protec Korea are used as the scouring agent, but are not limited thereto. In addition, adding 1 to 5 g of the scouring agent per 1 L of water can increase the fastness of the dye by preventing the reattachment of impurities while maintaining the blocking power of metal ions.
[0095] When the soaping process is finished, the soaping liquid composition is removed from the bath, and further softening treatment may be performed in the same bath. The softening treatment is intended to impart rebound elasticity, smoothness, bulkiness, and a soft touch to the towel being manufactured, and the softening treatment can be performed using methods conventionally practiced in this field. Additionally, it is preferable to perform the softening treatment by carrying out the softening liquid composition at 20 to 60°C for 10 to 60 minutes.
[0096] The above softening liquid composition may use any softening agent commonly used in this technical field. For example, CSE-920 from Cheongsan Chemtech may be used as the softening agent, but is not limited thereto, and it is preferable to add 1 to 5% by weight of fiber.
[0097] After the above flexible treatment is completed, the treatment solution, moisture, etc. remaining on the terry fabric can be removed through a washing and drying process, and the towel according to the present invention can be manufactured by cutting according to sales conditions.
[0098] Once the above dyeing step is completed, a process of attaching a herbal medicine extract may be further included. The herbal medicine extract may be any one selected from Schisandra chinensis, Coptis japonica, Houttuynia cordata, Anemarrhena asphodeloides, Taraxacum officinale, Paeonia lactiflora, Forsythia suspensa, and Lonicera japonica, or a mixture thereof.
[0099] These herbal ingredients can impart a unique natural fragrance to the manufactured towels and are effective in minimizing skin irritation. Furthermore, when combined with the antibacterial properties of bamboo fibers, they can provide an even more powerful antibacterial effect.
[0100] The extraction method of the above herbal medicine extract can be performed using conventional methods, such as heating or using a solvent, and can be concentrated and used as needed.
[0101] It is preferable to use a binder to attach the above herbal medicine extract to the surface of the fiber. The binder is hydrophilic and is not limited to any such binder, as long as it does not significantly impair the physical properties of the manufactured towel.
[0102] Preferably, as the binder, polycarboxylic acids such as aliphatic polycarboxylic acids, alicyclic polycarboxylic acids, aromatic polycarboxylic acids, saturated aliphatic dicarboxylic acids, unsaturated aliphatic dicarboxylic acids, aromatic dicarboxylic acids, and alicyclic dicarboxylic acids; and glycol polymers such as polyethylene glycol or polypropylene glycol may be used.
[0103] The method of attaching the above herbal medicine extract may utilize conventional methods available in the industry, such as immersion, spraying, or coating, and preferably, the immersion method is used.
[0104] The above herbal medicine extract and binder may be attached in a liquid form containing a solvent, wherein it is preferable to add 1 to 10% of the herbal medicine extract and 5 to 20% of the binder in owf. In addition, the above solvent may be a conventional solvent capable of dissolving both the binder and the herbal medicine extract, and the present invention is not limited thereto.
[0105] After completing the steps processed as described above, any remaining moisture in the terry fabric is removed, and towels can be manufactured in different sizes according to sales conditions.
[0106] The present invention can provide a towel manufactured according to the manufacturing method described above. The towel maintains a soft touch and high absorbency, while also possessing robust durability even after repeated washing. Furthermore, due to the appropriate twist strength, lint generation is minimized, ensuring that the appearance and quality are maintained for a long time. Thanks to the structure of high-performance pile yarns, it is resistant to friction and abrasion, resulting in minimal deformation even after long-term use, thereby providing continuous satisfaction to the user.
[0107] The present invention provides a towel comprising a bottom portion including warp yarns and weft yarns; and a pile portion including pile yarns, wherein the pile yarns include a first pile yarn and a second pile yarn, and exist in one or more forms selected from the group consisting of a first form in which the first pile yarns and the second pile yarns are combined and a second form in which the first pile yarns and the second pile yarns are separated, wherein the first pile yarns include a Nylon / Polyester composite yarn and the second pile yarns include bamboo fibers.
[0108] According to one embodiment, the description or specific examples of the warp yarn, weft yarn, pile yarn, first pile yarn, second pile yarn, Nylon / Polyester composite yarn, bamboo fiber, etc. are the same as those described above, so a description thereof is omitted.
[0109] The present invention will be described in detail below by way of examples. However, the following examples are merely illustrative of the present invention, and the scope of the present invention is not limited by the following examples. Unless otherwise defined, technical and scientific terms used herein have the meanings commonly understood by those skilled in the art to which this invention pertains. Furthermore, repetitive descriptions of technical configurations and operations identical to those of the prior art will be omitted.
[0110] [Example 1]
[0111] File manufacturing stage
[0112] A pile yarn was manufactured by using a two-for-one twister to twist the first pile yarn and the second pile yarn in a 1:1 volume ratio in the S direction at 100 TPM using the two-for-one twisting method. At this time, a Nylon / Polyester composite yarn with a fineness of 45D / 30F and a mixture of Nylon 6,6 / polyethylene terephthalate in a 3:7 ratio was used as the first pile yarn, and bamboo fiber with a cotton count of 10 was used as the second pile yarn. The pile yarn manufactured at this time was continuously supplied to a weaving machine for manufacturing terry fabric, which will be described later.
[0113]
[0114] Terry fabric manufacturing stage
[0115] Cotton fibers with a cotton count of 30 were used as warp and weft yarns, and the aforementioned pile yarn was used separately. The fibers were wound onto separate beams of a loom, and a towel was woven. The warp yarns and pile yarns were arranged alternately; on a loom equipped with a weft mechanism, the warp yarns were applied with high tension, while the pile yarns were applied with low tension. During towel weaving, the warp yarns formed the bottom of the towel, and the weaving process was performed so that the pile yarns rose between the weft yarns and settled into a loop shape between them. Through this process, a terry fabric with a pile section formed on the surface was manufactured.
[0116]
[0117] 1st dyeing step
[0118] A primary dye solution composition was prepared consisting of 3 wt% of a disperse dye (CI Disperse Red 60, LG Chem Co., Ltd.), 1 wt% of a carrier (trichlorobenzene), and 98 wt% of water. A woven terry fabric was immersed in the primary dye solution composition and dyed at 98°C for 1 hour.
[0119] After the first dyeing was finished, the terry fabric was discharged from the bath without rinsing, and the scouring and bleaching treatment solution was immediately added to perform the scouring and bleaching step. At this time, the temperature of the treatment solution was 98°C and the treatment time was 30 minutes, and the treatment solution was composed of 1% by weight of a scouring agent (sodium hydroxide), 1% by weight of a bleaching agent (sodium hypochlorite), and 98% by weight of water.
[0120] In the first dyeing step above, the pile yarns were separated from each other due to the difference in shrinkage rate between the first pile yarn and the second pile yarn.
[0121]
[0122] Second dyeing step
[0123] After the scouring and bleaching steps were completed, the treatment solution was discharged from the same bath, and a secondary dye solution composition was introduced into the bath to perform the secondary dyeing step. At this time, the secondary dyeing composition was prepared by mixing 10g of reactive dye (Lanasol CE, CIAB Specialty Chemicals) with distilled water to achieve a concentration of 10g / L.
[0124] An alkaline solution was prepared containing 7 g / L sodium carbonate and 80 g / L sodium silicate, and a dyeing composition was prepared by mixing the alkaline solution and the dye solution in a volume ratio of 4:1. A second dyeing step was performed by immersing the terry fabric in the dyeing composition at 60°C for 1 hour. The terry fabric was removed from the dye bath and the moisture was removed. The moisture-removed terry fabric was immersed in a 10% by weight sodium hydroxide solution for 7 minutes. At this time, the temperature of the sodium hydroxide solution was set to 90°C. The terry fabric removed from the sodium hydroxide solution was washed under running water for at least 10 minutes. After removing the water from the washed terry fabric, a soaping solution containing 1% by weight of a soaping agent (PROTEPON RSA, Protex Korea Co., Ltd.) was added, and the process was carried out at 98°C for 30 minutes.
[0125] After the above soaping process was completed and the soaping liquid was removed, a softening liquid containing 1% of softener (CSE-920, Cheongsan Chemtech Co.) was added, and the process was carried out at 40°C for 30 minutes. After the softener treatment was completed, the towel (terry fabric) specimen was prepared by thoroughly washing and drying.
[0126]
[0127] [Example 2]
[0128] The procedure was carried out in the same manner as Example 1, except that the pile yarn was manufactured by twisting it to 150 TPM instead of 100 TPM during the pile yarn manufacturing stage.
[0129] [Example 3]
[0130] The procedure was carried out in the same manner as Example 1, except that the pile yarn was manufactured by twisting it to 200 TPM instead of 100 TPM during the pile yarn manufacturing stage.
[0131]
[0132] [Example 4]
[0133] The procedure was carried out in the same manner as Example 1, except that the pile yarn was manufactured by twisting it to 250 TPM instead of 100 TPM during the pile yarn manufacturing stage.
[0134]
[0135] [Example 5]
[0136] The procedure was carried out in the same manner as Example 1, except that the pile yarn was manufactured by twisting it to 300 TPM instead of 100 TPM during the pile yarn manufacturing stage.
[0137]
[0138] [Example 6]
[0139] The procedure was carried out in the same manner as Example 1, except that the pile yarn was manufactured by twisting it to 400 TPM instead of 100 TPM during the pile yarn manufacturing stage.
[0140]
[0141] [Comparative Example 1]
[0142] The process was carried out in the same manner as Example 3, except that during the pile yarn manufacturing stage, the process was performed using a covering twisting method rather than a two-for-one twisting method, and a terry fabric was woven using a pile yarn including a first pile yarn and a covering twisting yarn wound spirally around the first pile yarn.
[0143]
[0144] [Comparative Example 2]
[0145] The process was carried out in the same manner as Example 3, except that the pile yarn was woven using a simple ply yarn method rather than a two-for-one twist method during the pile yarn manufacturing stage.
[0146]
[0147] The tactile feel, absorbency, colorfastness, and lint resistance of the towels (terry fabrics) prepared in the examples and comparative examples were measured and listed in Table 1 below.
[0148] For tactile sensation, a sensory evaluation was conducted on a panel of 20 evaluators ranging in age from their 20s to 60s, and scores were assigned from 1 (bad) to 5 (good), with the average value recorded. In addition, water absorption was measured according to the KS K 0815 method, and fastness was measured by washing fastness for cotton according to the KS K 0430 method and dry friction fastness according to the KS K 0650 method. Furthermore, lint resistance was measured according to KS K ISO 12945 (Martindale method).
[0149] Tactile sensation Absorbency [%] Washing fastness Friction fastness Lint resistance Example 154333-42 Example 2542443-4 Example 3546555 Example 4443555 Example 5339555 Example 6231555 Comparative Example 1542443 Comparative Example 1540332
[0150] As shown in Table 1 above, Examples 2 to 4, which use pile warp with an appropriate twist, demonstrated excellent tactile feel, absorbency, colorfastness, and lint resistance, whereas the terry fabric according to Comparative Example 1 exhibited low lint resistance. This confirmed that when using pile yarn made of bamboo fibers, which are susceptible to lint, as a covering yarn, the tactile feel and absorbency improve, but the durability of the product is reduced because the bamboo fibers are located on the outside and are easily exposed to abrasion and damage. In particular, Example 3 showed excellent tactile feel, absorbency, colorfastness, and lint resistance. However, Examples 1 and 2, which use pile warp with an excessively low twist, showed excellent tactile feel but low colorfastness and lint resistance, while Examples 5 and 6, which use pile warp with an excessive twist, showed insufficient tactile feel and absorbency.
[0151]
[0152] In addition, the productivity and defect rate of the towels (terry fabrics) manufactured in the examples and comparative examples were evaluated. Productivity was measured by the weight of towels (terry fabrics) produced per hour from the pile yarn manufacturing stage to the terry fabric manufacturing stage, and the defect rate was calculated as the percentage of towels (ea) that were deemed defective due to lint out of 100 (ea).
[0153] As a result of evaluating productivity and defect rates, the towels (terry fabrics) of the examples exhibited high productivity and were evaluated as suitable for mass production. In particular, Example 3 showed superior high productivity compared to Examples 4 to 6, and with almost no lint generation and stable quality, an excellent improvement in defect rates could be confirmed.
[0154] On the other hand, the covering yarn method used in Comparative Example 1 resulted in significantly reduced productivity due to the complex manufacturing process of wrapping the bamboo fibers and the low speed. Consequently, it was confirmed that the covering yarn method is not suitable for mass production of high-performance towels. Furthermore, the pile yarn of the covering yarn method used in Comparative Example 1 was vulnerable to friction because the bamboo fibers were located on the outside, and lint easily formed due to wear and damage, resulting in a relatively high defect rate.
[0155] In addition, the simple plying method used in Comparative Example 2 was insufficient in terms of productivity and durability, and had low lint resistance, making it impossible to manufacture high-performance towels.
[0156] Through this, it can be seen that the method for manufacturing a towel according to one embodiment, particularly Example 3, enables mass production with a productivity more than twice as high as the method for manufacturing a high-performance towel of Comparative Example 1, which was manufactured by a conventional covering yarn method, while minimizing lint generation caused by friction to prevent quality degradation. In addition, it was confirmed that by optimizing the twist strength, the tactile feel and absorbency of the towel are improved, and durability is maintained even after repeated washing.
[0157] As described above, although embodiments of the present invention have been described in detail, a person skilled in the art to which the present invention pertains will be able to implement the present invention with various modifications within the scope of the technical spirit of the present invention as defined in the appended claims. Therefore, future modifications to the embodiments of the present invention will not deviate from the technology of the present invention.
Claims
1. A step of manufacturing a terry fabric by weaving warp yarns, weft yarns, and pile yarns, wherein the bottom portion including the warp yarns and weft yarns and the pile yarns form loops between each of the weft yarns; A first dyeing step for first dyeing the above-mentioned manufactured terry fabric; and A second dyeing step for second dyeing the above first dyed terry fabric; comprising, A method for manufacturing a towel, wherein the pile yarn is formed by twisting a first pile yarn containing a Nylon / Polyester composite yarn and a second pile yarn containing bamboo fibers using a two-for-one twisting method.
2. In Paragraph 1, A method for manufacturing a towel, wherein prior to the manufacturing step of the terry fabric, a pile yarn manufacturing step is further performed in which a first pile yarn containing a Nylon / Polyester composite yarn and a second pile yarn containing bamboo fiber are twisted in a two-for-one twisting manner.
3. In Paragraph 1, The above pile yarn is a method for manufacturing a towel in which the volume ratio of the first pile yarn and the second pile yarn satisfies 0.5 to 2:
1.
4. In Paragraph 1, The above pile yarn is a method for manufacturing a towel having a twist of 150 to 300 TPM (Twist per meter).
5. In Paragraph 1, The above Nylon / Polyester composite yarn is a method for manufacturing a towel in which the weight ratio of Nylon to Polyester satisfies 2:8 to 4:
6.
6. In Paragraph 1, A method for manufacturing a towel in which the fineness of the above Nylon / Polyester composite yarn is 30 to 120 D / 30F.
7. In Paragraph 1, A method for manufacturing a towel in which the warp yarn and weft yarn independently have a cotton count of 10 to 80.
8. In Paragraph 1, A method for manufacturing a towel, wherein the first dyeing step above involves dyeing pile yarn using a disperse dye under temperature conditions of 90 to 110°C.
9. In Paragraph 1, A method for manufacturing a towel in which, in the first dyeing step, the pile yarn is separated into a first pile yarn and a two-for-one twist yarn.
10. In Paragraph 1, A method for manufacturing a towel, wherein the above-mentioned second dyeing step involves dyeing the bottom portion using a reactive dye under temperature conditions of 60 to 90°C.
11. A towel manufactured according to the manufacturing method according to paragraphs 1 through 10.
12. A bottom portion including warp yarns and weft yarns; and a pile portion including pile yarns, The above pile yarn contains a first pile yarn and a two-for-one twisted yarn, and exists in one or more forms selected from the group consisting of a first form in which the first pile yarn and the two-for-one twisted yarn are combined and a second form in which the first pile yarn and the two-for-one twisted yarn are separated. A towel in which the first pile yarn contains a Nylon / Polyester composite yarn and the two-for-one twist yarn contains bamboo fiber.
13. In Paragraph 12, The above pile yarn is a towel satisfying a volume ratio of 0.5 to 2:1 between the first pile yarn and the two-for-one twist yarn.
14. In Paragraph 12, The above pile yarn is a towel having a twist of 150 to 300 TPM (Twist per meter).
15. In Paragraph 12, The above Nylon / Polyester composite yarn is a towel satisfying a weight ratio of Nylon to Polyester of 2:8 to 4:
6.
16. In Paragraph 12, A towel with a fineness of 30 to 120 D / 30F of the above Nylon / Polyester composite yarn.
17. In Paragraph 12, The above warp and weft yarns are independently towels with a cotton count of 10 to 80.